WO2019208628A1 - Sterile bag and manufacturing method of sterilized fabric product package - Google Patents

Sterile bag and manufacturing method of sterilized fabric product package Download PDF

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Publication number
WO2019208628A1
WO2019208628A1 PCT/JP2019/017414 JP2019017414W WO2019208628A1 WO 2019208628 A1 WO2019208628 A1 WO 2019208628A1 JP 2019017414 W JP2019017414 W JP 2019017414W WO 2019208628 A1 WO2019208628 A1 WO 2019208628A1
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WO
WIPO (PCT)
Prior art keywords
sterilization
gas
bag
gas permeable
cover
Prior art date
Application number
PCT/JP2019/017414
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French (fr)
Japanese (ja)
Inventor
中村猛利
林祐一郎
柴田優
Original Assignee
東レ株式会社
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Publication date
Application filed by 東レ株式会社 filed Critical 東レ株式会社
Priority to JP2020515522A priority Critical patent/JPWO2019208628A1/en
Publication of WO2019208628A1 publication Critical patent/WO2019208628A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/20Gaseous substances, e.g. vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02Sterilising, e.g. of complete packages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02Sterilising, e.g. of complete packages
    • B65B55/04Sterilising wrappers or receptacles prior to, or during, packaging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02Sterilising, e.g. of complete packages
    • B65B55/04Sterilising wrappers or receptacles prior to, or during, packaging
    • B65B55/10Sterilising wrappers or receptacles prior to, or during, packaging by liquids or gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00Details of, or accessories for, sacks or bags
    • B65D33/01Ventilation or drainage of bags

Definitions

  • the present invention relates to a sterilization bag and a method for producing a sterilized textile product package.
  • a sterilization bag used for sterilization processing and a sterilized fiber product package formed by packaging a sufficiently sterilized fiber product, and the sterilization process in which the inside of the sterilization gas is suppressed is suppressed.
  • the present invention relates to a method for manufacturing a textile product package.
  • Disposable textile products such as protective clothing, masks, gloves, etc. used in clean rooms such as cell culture processing facilities, clinical laboratory facilities, pharmaceutical / cosmetic / medical equipment manufacturing facilities, etc. are mainly used.
  • These fiber products are generally enclosed in a bag called a sterilization bag, and the fiber product in the bag is generally sterilized. That is, the fiber product in the sterilization bag is sterilized to become a sterilized fiber product.
  • sterilization methods include high-pressure steam sterilization, ethylene oxide gas sterilization, plasma sterilization, and radiation sterilization using gamma rays and electron beams.
  • the plasma sterilization method or the radiation sterilization method When the plasma sterilization method or the radiation sterilization method is performed, it may be accompanied by material deterioration, discoloration, and odor generation of the textile product, and may not be suitable depending on the material. Therefore, a gas sterilization method using high-pressure steam or ethylene oxide gas is used.
  • the sterilization bag for gas sterilization is provided with a gas permeable portion for allowing gas to flow from the outside to the inside.
  • transmission part is comprised with paper or a nonwoven fabric.
  • sterilized textile products such as protective clothing, masks and gloves in sterilized bags may be temporarily stored outside of clean rooms such as cell culture processing facilities, clinical laboratory facilities, pharmaceutical / cosmetic / medical equipment manufacturing facilities, etc. It is common. Therefore, before carrying in a clean room, it is necessary to remove the dirt and microorganisms adhering to the outside of the sterilization bag. Dirt and microorganisms adhering to the sterilization bag are removed by wiping with ethanol and ultraviolet irradiation. In particular, ethanol wiping and cleaning is performed in many facilities because it is easy to handle. However, a sterilized bag provided with a gas permeable portion is not suitable for ethanol wiping and cleaning because of the following points.
  • the gas permeable portion disposed in the sterilization bag it is common to use paper, nonwoven fabric, or sterilized paper that is a composite of both, which has both gas permeability and microbial impermeableness (for example, a day). And product number TS-3000 manufactured by Yugi Giken Kogyo Co., Ltd.).
  • the sterilized paper is exposed, when the entire sterilized bag is wiped with ethanol, the ethanol penetrates from the sterilized paper portion and wets the textile product.
  • the exposed portion of the sterilized paper is inferior in physical strength, there is a risk that the sterilized paper may be damaged by handling and dust may be generated or the sterilization bag may be broken.
  • Patent Document 1 discloses a sterilized bag with a cover in which the outer side of the gas permeable portion is covered with the side edge portion of the exterior material.
  • the sterilization bag described in Patent Document 1 is suitable for wiping and cleaning with ethanol, and the strength of the sterilized paper part is sufficiently strong.
  • the sterilization bag described in Patent Document 1 has the following problems.
  • the fiber products placed in the sterilization bag are sterilized in a state where a plurality of fiber products are placed in the sterilization case.
  • the sterilizing gas sufficiently enters the inside of the sterilization bag from the gas permeation unit, so that the fiber product sealed in the sterilization bag is sterilized.
  • the middle of the sterilization bag is likely to swell, so the central part of the sterilization bag containing the fiber product contacts the wall of the adjacent sterilization bag or sterilization case, and the gas permeable part Is easily blocked.
  • the gas permeation part of the sterilization bag must have a configuration that does not interfere with the diffusion of sterilization gas and can wipe and clean the sterilization bag using ethanol even when sterilization is performed by stacking multiple sterilization bags. It is.
  • the present invention has been made in view of the above-described situation, and provides a sterilized bag for gas sterilization, which is a sterilized fiber product package body in which a sufficiently sterilized sterilized fiber product is packaged.
  • An object of the present invention is to provide a method for producing a sterilized fiber product package in which the sterilization gas residue is suppressed.
  • the present invention has the following configuration. That is, a sterilization bag having an opening and a gas permeable portion and having at least two surfaces of a substantially rectangular shape, which is subjected to a sterilization process, The opening is included on one side of the substantially rectangular shape, The gas permeable portion is disposed on at least one surface of the sterilization bag (this surface is referred to as surface A), and the gas permeable portion includes a cover that can cover the entire gas permeable portion. Have The cover is partially fixed to the surface A including the gas permeable portion, And the sterilization bag with which the said gas permeation
  • the center of gravity of the gas permeable portion is defined as a distance between two opposing sides of the surface A, the distance from any side of the surface A is 0.02 to 0.2. Exists in the range.
  • the area (S gas ) of the gas permeable portion is 4% or more and 25% or less with respect to the total area (S 0 ) of the surface A.
  • the process includes at least a sterilization bag having an opening and a gas permeation part and having at least two substantially rectangular surfaces, and a sterilization case for introducing sterilization gas, and the textile product is stored in the sterilization bag.
  • A sealing the opening of the sterilization bag to obtain a fiber product package B, and when storing a plurality of the fiber product package bodies in a sterilization case, the gas permeable portion provided in the sterilization bag And a step D of exposing to the sterilization case sterilizing gas in which a plurality of the textile product packages are housed, and a method for producing a sterilized textile product package body.
  • a sterilization bag provided with a gas permeable portion with a cover at one end can sufficiently disperse sterilization gas even when a plurality of sterilization bags are stacked and sterilized. Further, in sterilization bag wiping and cleaning using ethanol, a sterilization bag capable of cleaning without damaging the content fiber product with ethanol can be obtained. And it is a textile product package body formed by packaging textile products, and a sterilized textile product package body that is sterilized and has a small amount of sterilization gas remaining can be provided.
  • An example of the sterilization bag of this invention (appearance conceptual diagram which looked at the sterilization bag which heat-sealed the cover to one side from the front).
  • An example of the sterilization bag of this invention (appearance conceptual diagram which looked at the sterilization bag which heat-sealed the cover to one side from the back).
  • An example of the sterilization bag of this invention (appearance conceptual diagram which looked at the sterilization bag which heat-sealed the cover to 3 sides from the front). It is the schematic which showed the length of each side in a sterilization bag.
  • It is the schematic of the state which enclosed the textiles in the sterilization bag.
  • the schematic of the external appearance which shows an example of the sterilization bag without a cover.
  • the external appearance schematic which shows an example of the conventional sterilization bag. Schematic which showed the length of each side in the conventional sterilization bag. It is a conceptual diagram explaining the gas inflow / outflow of the case for sterilization which accommodated the several textile product package body in this invention. It is a conceptual diagram explaining the gas inflow / outflow of the case for sterilization which accommodated the several textile product package body in a prior art. It is the schematic explaining the position of the gravity center of a gas permeation
  • the sterilization of textile products is processed in the following steps. First, a textile product to be sterilized is provided with a cover, a gas permeation section, and an opening, and is housed in a substantially rectangular envelope-shaped sterilization bag. Then, the opening is sealed to obtain a textile product package. The plurality of textile product packages are stacked and stored in the sterilization case, and the sterilization case containing the plurality of textile product packages is exposed to the sterilization gas. Thereby, the textile product packaged in the textile product package is sterilized.
  • FIG. 10 shows a schematic cross-sectional view of a sterilization case containing a plurality of textile product packages 81 in the present invention
  • FIG. 11 shows a sterilization case containing a plurality of textile product packages 80 in the prior art.
  • FIGS. 10 and 11 In the method for manufacturing a sterilized textile product package body, as shown in FIGS. 10 and 11, a plurality of textile product package bodies 81 are stood in a sterilization case 42 and subjected to a sterilization process using a sterilization gas. Is common. In view of production efficiency, there is a demand for storing as many textile product packages as possible in the sterilization case. Then, when the fiber product is packed in a sterilization bag, the lower part easily swells from the center part of the fiber product package body, so that the lower part from the center part of the fiber product package body is adjacent to the adjacent fiber product package 80 or sterilization case It contacts the wall surface 82 and is pressed by these.
  • FIG. 10 and 11 In the method for manufacturing a sterilized textile product package body, as shown in FIGS. 10 and 11, a plurality of textile product package bodies 81 are stood in a sterilization case 42 and subjected to a sterilization process using a sterilization gas. Is common. In view of production efficiency, there
  • FIG. 11 shows a state in which a conventional textile product package 80 is put in a sterilization case 42.
  • a sterilization case 42 There are a plurality of fiber product package bodies 80 in which fiber products are packaged in a sterilization bag in which the gas permeation part 2 and the cover 6 exist only in the center of one surface of the sterilization bag, and these are stored in a sterilization case.
  • a cross-sectional view of the resulting structure is shown.
  • the gas permeation part 2 is pressed against the textile product or cover 6 packaged in the sterilization bag to which the gas permeation part belongs and the wall surface 82 of the sterilization case or another textile product package adjacent thereto,
  • transmission part 2 will be obstruct
  • the flow 83 of the sterilizing gas is difficult to reach the gas permeable portion. Then, the inflow and outflow of the sterilization gas into the sterilization bag through the gas permeation unit 2 is suppressed, and as a result, the sterilization of the fiber product placed in the sterilization bag becomes insufficient, or the sterilization gas becomes the fiber product package body. It is considered that it tends to remain inside 80.
  • the gas permeation unit 2 includes a plurality of fiber product package bodies 81 in which a fiber product is packaged in a sterilization bag provided at an upper portion of the sterilization bag, that is, one end of the sterilization bag.
  • a cross-sectional view of what is housed in a sterilization case is shown.
  • the gas permeable portion 2 belongs to the gas permeable portion 2 depending on the characteristic arrangement position of the gas permeable portion 2 in the sterilization bag, the characteristic storage method of the textile product package body in the sterilization case, and the like.
  • the sterilization gas flow 83 easily reaches the inside of the sterilization bag through the gas permeable portion 2.
  • a sterilization gas exposure step a sufficient amount of sterilization gas flows into the sterilization bag in a short time by sterilization gas inflow into the sterilization space in which the sterilization case 42 is accommodated.
  • the sterilization space is an internal space of the bag in which sterilization is performed.
  • the textile product packaged in the resulting sterilized textile product package is fully sterilized.
  • the sterilization gas inside the fiber product package 81 flows out of the fiber product package more reliably by the decompression process to the sterilization space after the sterilization process is completed.
  • FIG. 1 is a schematic view seen from the front of one surface (referred to as surface A) of the sterilization bag.
  • FIG. 2 is a schematic view seen from the other side of the sterilization bag.
  • a sterilization bag 1 shown in FIG. 1 is a substantially rectangular envelope-shaped bag, and has a gas permeable portion 2 and a cover 6.
  • the gas permeable portion 2 is entirely covered with a cover 6, and the cover 6 is joined to the sterilization bag 1 by being heat sealed in the heat seal portion 4 a.
  • the portion excluding the gas permeable portion 2 and the cover 6 of the sterilization bag 1 is made up of a resin film (front surface) 3a and a resin film (back surface) 3b as shown in FIGS. It is in the form of a rectangular envelope-shaped bag.
  • one of the four sides of the bag is provided with an opening 5 for heat sealing after enclosing the textile product.
  • the gas permeable portion 2 is disposed on at least one surface (surface A) of the sterilization bag 1.
  • the center of gravity of the gas permeable portion 2 is a position from 0.8 to 0.98 from at least one of the two sides when the distance between two opposing sides of the surface A is 1.
  • the cover 6 can cover the entire surface of the gas permeable portion 2, and the sterilization bag is the sterilization bag.
  • the inside and the outside can be ventilated through the gas permeable portion in the surface A.
  • the length (L) of the long side is set to 1, and the distance from the short side to the center of gravity G depends on the length.
  • the short side length (W) is set to 1, and the distance is determined based on the distance from the long side to the center of gravity G (see FIG. 12).
  • the distance is the shortest distance from the side.
  • the entire surface A is the gas permeable portion 2
  • the shortest distance of the center of gravity G is 0.5.
  • “the inside and the outside of the sterilization bag define the gas permeable portion in the surface A.
  • “Aeration is possible through” means a state in which sterilization gas can flow into the sterilization bag and be discharged after sterilization.
  • the cover 6 that can cover the gas permeable part 2 is fixed at a part of the peripheral edge in the gas permeable part 2 of the surface A, and the gas permeable part 2 and the cover 6 are not joined. There is a part where a gap exists.
  • the opening is an entrance for entering the textile product into the sterilization bag, and it is sufficient that there is at least one place in the sterilization bag.
  • the opening 5 is provided on any side of the sterilization bag. Taking the case where the sterilization bag is rectangular as an example, at least one is provided on one side of the long side or one side of the short side. And it is preferable that the opening part 5 exists in the side at the shortest distance from the center of gravity G of the gas permeable part 2 in relation to the position of the gas permeable part 2. In FIG. 1, the opening 5 is provided on the short side of the sterilization bag, and is present on the side at the shortest distance from the center of gravity G of the gas permeable part 2.
  • the area ratio will be described below with reference to FIG.
  • the area (S 0 ) of the surface A of the sterilization bag is an outer dimension including the heat seal portions 4a and 4b.
  • the area (S 0 ) of the surface A is L ⁇ W (mm 2 ) obtained by multiplying the vertical side L (mm) and the horizontal side W (mm) in FIG.
  • the area of the gas permeable portion 2 is considered as an effective internal dimension excluding the heat seal portion.
  • the heat seal part will be described later.
  • the area (S gas ) of the gas permeable portion 2 is l ⁇ w obtained by multiplying the vertical side l and the horizontal side w in FIG.
  • the gas permeation section 2 serves as a ventilation section for the inside and outside of a sterilization bag of sterilization gas such as high-temperature water vapor or ethylene oxide gas (hereinafter referred to as EOG).
  • EOG ethylene oxide gas
  • the material, raw material, and material used for the gas permeation part are not particularly limited as long as they can permeate sterilization gas and do not permeate bacteria, and have strength and heat sealability. Of these, sterilized paper is preferable.
  • the term “sterilized paper” as used herein is a general term for paper, nonwoven fabric, or a composite thereof having both gas permeability, microorganism impermeableness, strength, and heat sealability. Among these, a nonwoven fabric is preferable, and the nonwoven fabric will be described as an example below.
  • Examples of the raw material of the fibers forming the nonwoven fabric used in the gas permeable part include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, polybutylene terephthalate and polylactic acid, polyamides such as 6 nylon and 66 nylon, and teflon ( (Registered trademark), polystyrene, polyphenylene sulfite, polycarbonate, ionomer, ethylene-vinyl acetate copolymer, ethylene-acrylate copolymer and other thermoplastic resins, and mixtures thereof can be used as appropriate.
  • the fiber which coextruded these thermoplastic resins to the core-sheath structure can also be used.
  • Nonwoven fabric materials include, for example, wet nonwoven fabrics, resin bond dry nonwoven fabrics, thermal bond dry nonwoven fabrics, spunbond dry nonwoven fabrics, needle punch dry nonwoven fabrics, water jet punch dry nonwoven fabrics, melt blown dry nonwoven fabrics or flash spinning types.
  • a dry nonwoven fabric can be used.
  • the flash-spun dry nonwoven fabric can be used more suitably because it generates less fiber debris and has less yarn loss.
  • commercially available Tyvek (registered trademark) is suitably used because of its good gas permeability, microbial impermeability, strength, and heat sealability.
  • a heat sealant can be applied by a known technique.
  • thermoplastic resin having a melting point of 160 ° C. or less such as polyethylene, is preferably used.
  • the basis weight of the nonwoven fabric is preferably 30 g / m 2 or more and 150 g / m 2 or less.
  • the basis weight be 150 g / m 2 or less because gas permeability can be secured and the cost is advantageous.
  • the air permeability of the nonwoven fabric is preferably 1 second / 100 ml or more and 600 seconds / 100 ml or less according to JIS P8117 Gurley method.
  • the smaller the air permeability the more easily gas flows into and out of the sterilization bag during gas sterilization, which is preferable because the gas sterilization time can be shortened.
  • the case of less than 1 second / 100 ml is not preferable because the risk of contamination of bacteria from the outside air increases.
  • the air permeability is larger than 600 seconds / 100 ml, it takes time for the gas to flow into and out of the sterilization bag, so the gas sterilization time becomes longer, which is not preferable in production.
  • the bacterial barrier property of the nonwoven fabric is preferably as high as possible, but for example, AST R1 is preferably 2 or more, more preferably 3 or more, and particularly preferably 4 or more according to ASTM F1608 method.
  • the resin film forming the sterilization bag includes a resin film (front surface) 3a that forms the front surface of the sterilization bag and a resin film (back surface) 3b that forms the back surface of the sterilization bag.
  • a resin film (front surface) 3a that forms the front surface of the sterilization bag
  • a resin film (back surface) 3b that forms the back surface of the sterilization bag.
  • the same material is used for the resin film (front surface) 3a and the resin film (back surface) 3b.
  • the materials, raw materials, and materials used for the resin film are not particularly limited as long as they have strength and heat sealability, and known materials can be used.
  • the material of the resin film is not particularly limited, and is produced using conventionally known materials, processing techniques and conditions. Semi-transparent or transparent is preferable from the viewpoint of the visibility of the contents of the bag, and a resin film having heat sealing properties formed by a melt extrusion method or a calendar method is preferably used.
  • Examples include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as 6 nylon and 66 nylon, polycarbonate, polystyrene, polyphenylene sulfite, ionomer, ethylene-vinyl acetate copolymer, ethylene acrylate. Although a copolymer, these laminated films, etc.
  • polyolefins and polyesters are particularly preferably used from the viewpoint of ethanol resistance.
  • a resin such as polyamide, which is slightly inferior in ethanol resistance, can be laminated with another resin excellent in ethanol resistance.
  • the ethanol resistance of the resin film is preferably class 1 or higher, more preferably class 2 or higher, even more preferably class 3 or higher, when tested with ethanol in the permeation resistance test defined in JIS T8030 (2005).
  • a heat-sealable resin film is bonded with an adhesive, or a heat-sealable resin film is laminated by a co-extrusion method or a tandem method.
  • the heat sealant may be applied by a known coating method such as gravure coating, dip coating, air knife coating, blade coating, roll coating, and bar coating. By providing heat sealing properties, heat sealing can be performed with the gas permeable portion, other portions of the resin film, and the like.
  • a thermoplastic resin having a melting point of 160 ° C. or less such as polyethylene is preferably used.
  • the shape of the sterilization bag of the present invention is a substantially rectangular envelope.
  • the substantially rectangular shape referred to in the present invention may be a substantially rectangular shape, and all four corners may be rounded instead of right angles.
  • the sterilization bag has an envelope shape such as a substantially rectangular shape
  • the evaluation fiber product package 50 is placed under the gas permeable portion (in FIG. 6, the gas permeable portion 2 is under the cover 6. It is easy to put it in the sterilization case 42 with the portion where it is) facing up. And since a sterilization bag is stabilized when sterilizing collectively etc., it is easy to handle, and the gas permeation
  • the position where the gas permeable part is disposed is at least one surface (surface A) of the sterilization bag. Further, the center of gravity of the gas permeable portion is 0.8 from one side of the two sides when the distance between two opposing sides of the plane A (the plane A is substantially rectangular) is 1.
  • the position is 0.98 or less, that is, in a range from 0.02 to 0.2 from any side of the surface A. That is, the gas permeation part is close to a specific position at one of the four end parts of the surface A.
  • the surface A of the sterilization bag is substantially rectangular, the surface A has four sides. That is, the surface A of the sterilization bag has two sets of two opposite sides.
  • the center of gravity of the gas permeation section has a distance of 1 between two opposing sides in at least one set of two opposing sides out of two sets of two opposing sides. If it is present at a position of 0.8 to 0.98 from one of the two sides, that is, within a range from 0.02 to 0.2 from any side of the surface A. That's fine.
  • the sterilization bag is filled with the fiber product, there is a range where the fiber product is not applied toward the end of the side of the sterilization bag, that is, the upper part of the sterilization bag.
  • a position from 0.9 to 0.98 from one of the two sides that is, a range from 0.02 to 0.1 from any side of the surface A is more preferable.
  • the rectangular gas permeable portion is within the range of 0.2 from the end portion.
  • the sterilization gas sufficiently penetrates into the inside of the sterilization bag from the gas permeation section, so that the fiber product sealed in the sterilization bag is sterilized. Therefore, a space that does not hinder the diffusion of the sterilizing gas is required around the gas permeable portion. Then, as described above, when the textile product package is housed in the sterilization case 42, the gas permeable portion is accommodated in the sterilization case so that the gas permeable portion is positioned substantially upward in the vertical direction. Stable sterilization is possible because it is less susceptible to interference from the adjacent fiber product package and the wall surface of the sterilization case. Further, the sterilization bag may have a plurality of gas permeable portions, and at least one gas permeable portion may be provided at the end of one side of the sterilization bag.
  • the ratio of the area of the gas permeable portion to the area of the surface A of the sterilization bag ((area of the gas permeable portion / area of the surface A) ⁇ 100) is 4% or more and 25% or less.
  • the area ratio of the gas permeation part is less than 4%, the inflow / discharge of the sterilization gas is not sufficient, and the fiber product is not sufficiently sterilized, or the inside of the sterilized fiber product package body There is a tendency for sterilization gas to remain.
  • the above ratio is less than 5%, there is a possibility that sufficient sterilization of the textile product can be achieved by increasing the sterilization time, but in this case, the sterilization time is prolonged.
  • the productivity of the sterilized textile product package tends to be inferior.
  • the area of the gas permeable part is increased, the effect of gas sterilization is not dramatically improved. If the gas permeable part is enlarged, the gas permeable part tends to be expensive. Since the amount of the material used increases and the cost increases, the upper limit is 25%.
  • the sterilization bag is provided with a cover 6 so as to cover the entire surface of the gas permeable portion.
  • the cover 6 in the present invention can suppress contact between the gas permeable portion and ethanol when the gas permeable portion of the sterilization bag is wiped and washed with ethanol or the like. Moreover, it is possible to suppress damage to the gas permeable part by covering the entire surface of the gas permeable part. If the cover 6 does not cover the entire surface of the gas permeation part, when the sterilization bag is wiped and washed with ethanol or the like, ethanol penetrates into the sterilization bag from the gas permeation part not covered with the cover, and the textile product This is not preferable because it may become wet and stain, or impurities such as dirt dissolved in ethanol may be introduced into the sterilization bag.
  • the cover covers the entire surface of the gas permeable part, and the cover 6 and the gas permeable part 2 are joined to form the heat seal part 4a. Further, it is preferable to fix the three sides of the cover 6 in which the three sides (upper end portion, left and right end portions) are U-shaped and the gas permeable portion and the heat seal portions 4a and 4b are formed.
  • the cover 6 can be turned over when handling a sterilization bag, the risk of exposing the gas permeation part can be suppressed, and it can be easily wiped off with ethanol, and the cover does not turn over when stored in a sterilization case. It becomes easy to do.
  • the entire surface of the gas permeable part is covered with a cover 6 so that the inside and the outside of the sterilization bag can be vented through the gas permeable part.
  • at least a part of the gas permeable portion includes a gas permeable portion that is not surrounded by a portion where the cover 6 and the gas permeable portion 2 are fixed.
  • at least one side of the gas permeable portion and a corresponding side of the cover are not joined at the periphery.
  • the area ratio between the gas permeable portion and the cover is 1: 1 to 1: 1.5, that is, the area (S cov ) of the cover 6 is 100 with respect to the area (S gas ) of the gas permeable portion 2. % To 150%. More preferably, the ratio is 1: 1 to 1: 1.1, that is, the area (S cov ) of the cover is 100% or more and 110% or less with respect to the area (S gas ) of the gas permeable portion.
  • the area ratio of the cover 6 is less than 1 (less than 100%), an uncoated gas permeable portion is generated, and thus ethanol penetrates from the uncoated portion at the time of ethanol wiping and washing, which is not preferable.
  • the area ratio of the cover 6 exceeds 1.5 (150%), it becomes difficult for sterilization gas to flow in and out, and an increase in the resin film used as the cover 6 increases the environmental load during disposal. Is also not preferable.
  • the area ratio will be described below with reference to FIG.
  • the effective internal dimensions excluding the heat seal part are considered.
  • the area of the gas permeable portion is l ⁇ w obtained by multiplying the vertical side l and the horizontal side w
  • the area of the cover is cy ⁇ cx obtained by multiplying the vertical side cy and the horizontal side cx. Therefore, the area ratio of the gas permeable part and the cover is (l ⁇ w) :( cy ⁇ cx).
  • FIG. 4 for convenience of explanation, the bag body provided with the gas permeable portion and the cover are depicted in a separated form, but in actuality, as shown in FIG. 3, the cover is the heat seal portion 4a. 4b is integrated with the bag body. Heat sealing, which is a method for assembling a sterilization bag, will be described later.
  • the material, raw material, and material used for the cover 6 are not particularly limited as long as they have heat sealability and ethanol resistance.
  • the same resin material as that of the resin film and the gas permeable portion can be used.
  • the cover 6 is preferably in the form of a resin film rather than in the form of a non-woven fabric or paper from the viewpoint of ethanol wiping and cleaning suitability, dust prevention, and suppression of damage to the gas permeation part. More preferably, it is a material.
  • the cover 6 is a nonwoven fabric or paper, it is necessary to impart alcohol repellency beforehand, but the method is not particularly limited, and conventionally known processing techniques and conditions can be appropriately selected. For example, a water- and oil-repellent treatment using a silicon-based or fluorine-based water and oil repellent agent can be mentioned.
  • a heat-sealable resin film is bonded with an adhesive, or a heat-sealable resin film is laminated by a coextrusion method or a tandem method.
  • the heat sealant may be applied by a known coating method such as gravure coating, dip coating, air knife coating, blade coating, roll coating, and bar coating.
  • a thermoplastic resin having a melting point of 160 ° C. or less such as polyethylene is preferably used.
  • the state in which the inside and the outside of the sterilization bag can be referred to in the present invention means a state in which sterilization gas can flow into the sterilization bag and be discharged after sterilization.
  • ISO 10993-7: 2008 stipulates that the average daily dose of ethylene oxide (hereinafter referred to as EO) for patients with temporarily exposed medical devices should not exceed 4 mg.
  • EO ethylene oxide
  • the EO residual concentration of the fiber product measured based on JIS T0993-7: 2012 in the measurement method (4) described later was 4 mg after being stored in the aeration room for 120 hours.
  • / textile product is preferred, and after storage for 24 hours in the aeration room, 4 mg or less / textile product is preferred. It is not preferable that the aeration room is kept longer than 120 hours because it takes time to ship the textile product. The shorter the aeration room is, the more preferable for production.
  • each heat seal part resin film (front) 3a / resin film (back) 3b, cover 6 / gas permeable part 2, resin film (front) 3a / gas permeable part 2, resin film (front) 3a / gas
  • the fixing method of the transmission part 2 / resin film (rear surface) 3b is known, for example, fixing with an electric sealer, fixing with a high frequency welder, fixing with ultrasonic waves, fixing with an adhesive, fixing with heat sealing, fixing with double-sided tape, etc. Processing technology and conditions can be selected. Fixing by heat sealing is particularly preferable because the resin film, the gas permeable portion, and the cover can be stably joined in one step.
  • the heat sealing method is not particularly limited, and a known method such as a hot plate method or an impulse method can be applied.
  • the peel strength of the heat seal part is preferably 2N / 12 mm or more, more preferably 4N / 12 mm or more.
  • the upper limit is preferably 40 N / 12 mm or less, more preferably 30 N / 12 mm or less. In the case of 40 N / 12 mm or more, the gas permeable portion is firmly bonded to the film, and the seal portion becomes hard and is easily damaged when bent.
  • the peel strength of the heat seal part between the resin film (front surface) 3a and the resin film (back surface) 3b is preferably 10 N / 12 mm or more, and more preferably 20 N / 12 mm or more.
  • the upper limit is preferably 60 N / 12 mm or less. When it is less than 10 N / 12 mm, the heat seal is weak and the joint is easily peeled off. When it is 60 N / 12 mm or more, the seal portion becomes hard, which is not preferable.
  • the lower limit of the melting point is preferably 90 ° C. or higher, more preferably 110 ° C. or higher, as for the material used for the resin film and the gas permeable part and the cover. More preferably, it is 130 ° C. or higher. If it is less than 90 ° C., the resin may be deformed depending on the EOG sterilization conditions, or the peel strength of the heat seal portion will be weak, which is not preferable.
  • fusing point is not specifically limited, It is preferable that it is 400 degrees C or less from a viewpoint of incineration disposal.
  • the sterilization bag is used by inserting a fiber product through the opening and gas-sterilizing the fiber product package with the opening heat-sealed. If the sterilization bag of the present invention is used, aseptic conditions can be maintained after gas sterilization.
  • the textile product said here is mentioned as a suitable example, for example, sterilization clothes, if it is a textile product which can be inserted in a sterilization bag, it will not specifically limit.
  • the sterilization bag of the present invention may be provided with an opening start portion such as a notch 7 as shown in FIG.
  • an opening start portion such as a notch 7 as shown in FIG.
  • the position of the notch 7 is preferably provided in the vicinity of the end opposite to the gas permeable portion in order to avoid generation of paper dust and waste thread due to the destruction of the gas permeable portion at the time of opening.
  • the manufacturing process includes at least the following steps.
  • a process A for storing a textile product in a sterilization bag, a process B for sealing the opening to obtain a textile product package, a process C for storing a plurality of textile product packages in a sterilization case, and a plurality of the textile product packages Is a step D of exposing the sterilization case in which is stored to a sterilizing gas.
  • the step C is a step of storing a plurality of fiber product package bodies in a sterilization case so that at least one of the two sides is positioned substantially vertically above the gas permeable portion.
  • the gas permeable portion is disposed on at least one surface (surface A) of the sterilization bag, and the center of gravity of the gas permeable portion is a distance between two opposing sides of the surface A being 1 When present, a position from 0.8 to 0.98 from one of the two sides, that is, a range from 0.02 to 0.2 from any side of the surface A,
  • the ratio of the area of the gas permeable portion to the area of the surface A ((area of the gas permeable portion / area of the surface A) ⁇ 100) is 4% or more and 25% or less.
  • the cover can cover the entire surface of the gas permeable portion, and the sterilization bag can ventilate the inside and the outside of the sterilization bag with the entire surface of the gas permeable portion covered with the cover.
  • step C is a step of storing a plurality of fiber product packages in a sterilization case so that the gas permeable portion is positioned substantially vertically above one of the two sides. It is a manufacturing method of a used textile product package.
  • EOG sterilization treatment EOG sterilization is performed under the following conditions, and sterilization performance confirmation 1 (residual EO measurement) and sterilization performance confirmation 2 (acceptance rate of biological indicator) are performed.
  • sterilization performance confirmation 1 residual EO measurement
  • sterilization performance confirmation 2 acceptance rate of biological indicator
  • the fiber product package body that has been sterilized after the EOG sterilization is sometimes referred to as an article to be sterilized.
  • a sterilization case 60 shown in FIG. 6 is stored in an aeration room at 40 ° C. and 50% Rh.
  • the sterilization case 60 remains in a state in which a plurality of fiber product package bodies after sterilization processing are accommodated.
  • the storage time is 24 hours or 120 hours.
  • the measurement conditions are as follows.
  • Carrier gas He138 kPa, hydrogen 50 kPa, air 50 kPa (Sterilization performance confirmation 2 [Acceptance rate of biological indicator])
  • Biological indicator is 3M (registered trademark) Attest (registered trademark) 1264-S Bacillus atrophaeus ATCC: 9372 is used.
  • a biological indicator is collected from the sterilized material, and the collected biological indicator is allowed to stand at 35 ° C. for 48 hours. Evaluation was made by visually checking the biological indicator after standing for 48 hours, judging that the liquid medium remained blue without any discoloration, and the one with yellow color or turbidity was judged as rejected. Calculated by Equation 1 and used as a test result.
  • Biological indicator pass rate (%) passed number ⁇ 12 ⁇ 100 Formula 1 (4) Peel strength of heat seal part (a) Peel strength of heat seal part between resin film and test with part of heat seal part between resin film (front) and resin film (back) from sterilization bag Two pieces (12 mm in width ⁇ 100 mm in length) are prepared and measured based on Section 7.5 of JIS Z1707: 1997. Measurement conditions: The peel strength is measured at a gripping tool spacing of 50 mm and a tensile speed of 300 mm / min, and the average value is taken as the test result.
  • the gas permeation part and the resin film used in Examples and Comparative Examples were as follows.
  • Tyvek registered trademark
  • 1073B manufactured by Asahi DuPont Flash Span Products
  • ⁇ Resin film> Prepare a 12 ⁇ m thick biaxially stretched polyethylene terephthalate film and a 60 ⁇ m thick low-density polyethylene film as a heat seal layer as a resin film that forms the cover and the gas permeable portion of the sterilization bag, and as an adhesive
  • a laminate laminated with a urethane resin-based two-component mixed laminate adhesive (application amount 3 g / m 2 ) was used.
  • the physical properties of the resin film are as follows: thickness 75 ⁇ m, tensile strength (JIS K 7127: 1999, 6.1.1): MD direction 60 N / 15 mm, CD direction 55 N / 15 mm, tear strength (JIS K 7128-2: 1998) Elmendorf tearing method) was 0.24N in the MD direction and 0.23N in the CD direction.
  • Example 1 (Production of sterile bags) This will be described with reference to FIGS.
  • a sterile bag 65 without a cover shown in FIG. 7 was produced.
  • the sterilization bag 65 without the cover has the heat seal part 4 and the gas permeation part 2, and the gas permeation part 2 is disposed on the end side where the opening 5 is present.
  • the cover 6 was heat sealed with the heat seal portions 4 a and 4 b to obtain a sterilization bag 30 with the cover fixed on three sides.
  • an electric sealer (Fi-600Y manufactured by Fuji Impulse Co., Ltd., one-side heating type, heat seal width 10 mm) was used.
  • the electric sealer heat-sealed the cover and the gas permeable part by heating from above the surface of the cover (opening 5 is not heat-sealed).
  • an evaluation sample was prepared based on the above-described evaluation / measurement method (4) preparation of a sample for evaluation of sterilization performance.
  • the peel strength of the gas permeable part and the cover, the gas permeable part and the heat seal part of the resin film was 10 N / 12 mm, and the heat seal part between the resin films was 35 N / 12 mm. Further, the peel strength of the heat seal at the location where the opening 5 was sealed (between the back surface resin film and the gas permeable portion) was 10 N / 12 mm.
  • Table 2 shows the results of the various evaluations described above using the obtained sterilization bag.
  • the sterilization bag passed the ethanol wiping and washing, and the results satisfying the sterilization performance were obtained.
  • the “position of the center of gravity” in Table 1 refers to the side closer to the center of gravity of the gas permeation part and the gas permeation of two sets of two opposite sides constituted by four sides of the surface A of the sterilization bag. This is based on the shortest distance from any side of the surface A, where 1 is the distance from the center of gravity of the part, that is, the distance between two opposing sides of the surface A.
  • Example 2 The evaluation results were the same as in Example 1 and passed the ethanol wiping cleaning, and the results of satisfying the sterilization performance were obtained.
  • the evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained.
  • Residual EO residual EO (sterilization performance) was estimated to be easier to discharge gas by increasing the area ratio of the gas permeable part from 4% to 10% than in Example 1, and the residual EO concentration was higher than in Example 1. Was also low.
  • the evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained.
  • Residual EO residual EO (sterilization performance) was estimated to be easier to discharge gas by increasing the area ratio of the gas permeable part from 10% to 25% than in Example 3, and the residual EO concentration was higher than in Example 3. Was also low.
  • the peel strength of each seal part was equivalent to that in Example 1.
  • the evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained.
  • the area ratio of the gas permeable part was increased from 25% to 28% as compared with Example 4, but the residual EO concentration was not significantly different from that in Example 4.
  • the peel strength of each seal part was equivalent to that in Example 1.
  • the evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained.
  • the area ratio of the gas permeable portion was increased from 25% to 31% as compared with Example 4, but the residual EO concentration was not significantly different from that in Example 4.
  • Example 7 A sterilization bag having a target cover fixed on one side was obtained in the same manner as in Example 1 except that only one side (heat seal portion 4a) of the cover was heat sealed. The peel strength of each seal part was the same as in Example 1. However, when trying to store the fiber product package in a sterilization case for sterilization performance evaluation, the cover was turned over to fix one side and the gas permeable part was exposed. It was easy. The evaluation was carried out by storing a sterilization bag so that the cover of the textile product package was not turned over. As a result of the evaluation, a result that passed the ethanol wiping cleaning and satisfied the sterilization performance was obtained.
  • the evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained.
  • the evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained.
  • Table 2 shows the results of evaluation of the obtained sterilized bag.
  • the sterilized bag passed the ethanol wipe cleaning.
  • the pass rate (sterilization performance) of the biological indicator was 92%, but the pass rate of the biological indicator could be made 100% by adjusting the sterilization time, and there was no practical problem.
  • Example 1 A sterile bag without a cover as shown in FIG. 7 was prepared. The peel strength of each seal part was equivalent to that in Example 1. As a result of various evaluations using the obtained sterilization bag, sterilization performance was obtained, but ethanol wiping and washing was unacceptable. From these things, since there was no ethanol wiping and cleaning appropriateness, it was not suitable as a sterilization bag.
  • the center of gravity of the gas permeable part was a distance of 0.5 from the long side.
  • the peel strength of the heat seal part was 10 N / 12 mm for the heat seal part between the resin film 71 and the gas permeable part 2, and 35 N / 12 mm for the heat seal part between the resin films 71.
  • the evaluation result passed the ethanol wiping cleaning.
  • the pass rate (sterilization performance) of the biological indicator is 66%, and it is estimated that the EOG flow into and out of the sterilization bag is less likely to occur due to the gas permeation part coming into contact with the adjacent bag and the fiber product included. Therefore, the sterilization performance was inferior and the practicality was lacking.
  • the sterilization bag of the present invention has sufficient gas sterilization performance, is suitable for ethanol wiping and washing, can be used as a sterilization bag that does not cause damage during handling by increasing the physical strength of the gas permeable part, It is suitable as a sterilization bag for use in a clean room such as a clinical laboratory or a pharmaceutical / cosmetic / medical equipment manufacturing facility.

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Abstract

Provided is a substantially rectangular envelope-like sterile bag (1) which comprises a cover (6), a gas permeable part (2), and an opening part (5), and which allows ventilation through the gas permeable part (2). The gas permeable part (2) is disposed on at least one surface (surface A) of the sterile bag (1), and is configured such that: when the distance between two facing sides of the surface A is defined as being 1, the center of gravity of the gas permeable part (2) is located at a distance of 0.02 to 0.2 from one of the sides of the surface A; the area of the gas permeable part (2) is 4% to 25% of the total area of the surface A; and the entire surface of the gas permeable part (2) can be covered by the cover (6). Furthermore, a manufacturing method of a sterilized fabric product package using the sterile bag (1) is provided.

Description

滅菌袋、および、滅菌処理済み繊維製品パッケージ体の製造方法Sterilization bag and method for producing sterilized textile product package
 本発明は、滅菌袋、および、滅菌処理済み繊維製品パッケージ体の製造方法に関する。 The present invention relates to a sterilization bag and a method for producing a sterilized textile product package.
 更に詳しくは、滅菌処理に使用される滅菌袋および十分に滅菌された繊維製品を包装してなる滅菌処理された繊維製品パッケージ体であって、内部における滅菌ガスの残留が抑制された滅菌処理済み繊維製品パッケージ体の製造方法に関する。 More specifically, a sterilization bag used for sterilization processing and a sterilized fiber product package formed by packaging a sufficiently sterilized fiber product, and the sterilization process in which the inside of the sterilization gas is suppressed is suppressed. The present invention relates to a method for manufacturing a textile product package.
 細胞培養加工施設、臨床検査施設、医薬品・化粧品・医療機器製造施設等のクリーンルームに搬入されて使用する防護服、マスク、手袋等の繊維製品は、使い捨てが主流となっている。これらの繊維製品は、滅菌袋と呼ばれる袋に封入され、袋のまま中の繊維製品が滅菌処理されることが一般的である。つまり、滅菌袋に入った繊維製品は、滅菌処理が行われ、滅菌処理済み繊維製品となる。滅菌方法としては、高圧蒸気滅菌法、エチレンオキサイドガス滅菌法、プラズマ滅菌法、ガンマ線や電子線による放射線滅菌法等が知られている。プラズマ滅菌法や放射線滅菌法を実施した場合、繊維製品の材料劣化や変色、臭気の発生を伴うことがあり、素材によっては適さない場合がある。そこで、高圧蒸気やエチレンオキサイドガスによるガス滅菌法が使用される。ガス滅菌用の滅菌袋には、外から内へガスを通気させるため、ガス透過部が設けられている。ガス透過部は、紙、または、不織布で構成される。 Disposable textile products such as protective clothing, masks, gloves, etc. used in clean rooms such as cell culture processing facilities, clinical laboratory facilities, pharmaceutical / cosmetic / medical equipment manufacturing facilities, etc. are mainly used. These fiber products are generally enclosed in a bag called a sterilization bag, and the fiber product in the bag is generally sterilized. That is, the fiber product in the sterilization bag is sterilized to become a sterilized fiber product. Known sterilization methods include high-pressure steam sterilization, ethylene oxide gas sterilization, plasma sterilization, and radiation sterilization using gamma rays and electron beams. When the plasma sterilization method or the radiation sterilization method is performed, it may be accompanied by material deterioration, discoloration, and odor generation of the textile product, and may not be suitable depending on the material. Therefore, a gas sterilization method using high-pressure steam or ethylene oxide gas is used. The sterilization bag for gas sterilization is provided with a gas permeable portion for allowing gas to flow from the outside to the inside. A gas permeation | transmission part is comprised with paper or a nonwoven fabric.
 一方、滅菌袋に入った防護服、マスク、手袋等の滅菌処理済み繊維製品は、細胞培養加工施設、臨床検査施設、医薬品・化粧品・医療機器製造施設等のクリーンルーム外で一旦保管されることが一般的である。そのため、クリーンルーム内に搬入する前に、滅菌袋の外側に付着した汚れや微生物を除去する必要がある。滅菌袋に付着した汚れや微生物は、エタノール拭き取り洗浄や紫外線照射を行って除去する。特に、エタノール拭き取り洗浄は、取り扱いが容易なことから多くの施設で行われているが、ガス透過部が設けられた滅菌袋は、以下の点から、エタノール拭き取り洗浄に適さなかった。 On the other hand, sterilized textile products such as protective clothing, masks and gloves in sterilized bags may be temporarily stored outside of clean rooms such as cell culture processing facilities, clinical laboratory facilities, pharmaceutical / cosmetic / medical equipment manufacturing facilities, etc. It is common. Therefore, before carrying in a clean room, it is necessary to remove the dirt and microorganisms adhering to the outside of the sterilization bag. Dirt and microorganisms adhering to the sterilization bag are removed by wiping with ethanol and ultraviolet irradiation. In particular, ethanol wiping and cleaning is performed in many facilities because it is easy to handle. However, a sterilized bag provided with a gas permeable portion is not suitable for ethanol wiping and cleaning because of the following points.
 滅菌袋に配設したガス透過部は、気体透過性と微生物不通過性とを併せ持つ、紙、または不織布、またはそれらの複合体である滅菌紙が使われることが一般的である(例えば、日油技研工業社製の品番TS-3000などが挙げられる)。しかしながら、滅菌紙が露出しているため、滅菌袋全体をエタノールで拭き取る際、滅菌紙部分からエタノールが浸入し、繊維製品を濡らす不具合があった。さらに露出した滅菌紙の部分は物理的強度にも劣るため、取り扱い時に損傷を受けて、滅菌紙から塵が発生したり、滅菌袋が破れるというリスクがあった。 As the gas permeable portion disposed in the sterilization bag, it is common to use paper, nonwoven fabric, or sterilized paper that is a composite of both, which has both gas permeability and microbial impermeableness (for example, a day). And product number TS-3000 manufactured by Yugi Giken Kogyo Co., Ltd.). However, since the sterilized paper is exposed, when the entire sterilized bag is wiped with ethanol, the ethanol penetrates from the sterilized paper portion and wets the textile product. Furthermore, since the exposed portion of the sterilized paper is inferior in physical strength, there is a risk that the sterilized paper may be damaged by handling and dust may be generated or the sterilization bag may be broken.
 上記課題を解決する方法として、特許文献1には、ガス透過部の外側が、外装材の側縁部で覆われたカバー付きの滅菌袋が開示されている。 As a method for solving the above problem, Patent Document 1 discloses a sterilized bag with a cover in which the outer side of the gas permeable portion is covered with the side edge portion of the exterior material.
実公昭52-52812号公報Japanese Utility Model Publication No. 52-52812
 特許文献1に記載の滅菌袋は、エタノール拭き取り洗浄に対し適性が認められ、滅菌紙部分の保護も十分な強度となる。しかし、特許文献1に記載の滅菌袋には以下の課題がある。 The sterilization bag described in Patent Document 1 is suitable for wiping and cleaning with ethanol, and the strength of the sterilized paper part is sufficiently strong. However, the sterilization bag described in Patent Document 1 has the following problems.
 ガス滅菌工程では、滅菌袋に入れられた繊維製品は、複数個を滅菌用ケース内に入れた状態で滅菌処理を行う。ガス滅菌においては、滅菌ガスがガス透過部から滅菌袋の内部に十分に浸入することで、滅菌袋に封入された繊維製品が滅菌処理される。この際、繊維製品を滅菌袋に詰めると滅菌袋の真ん中が膨らみやすいことから、繊維製品が入った滅菌袋の中央部は、隣接する滅菌袋や滅菌用ケースの壁面に接触し、ガス透過部が塞がれやすい。特に、ガス透過部の外側が外装材で覆われたカバー付きの滅菌袋においては、ガス透過部がかさ高になり、ガス透過部とカバーとが密着しふさがれる可能性が高くなる。従って、特許文献1に記載の滅菌袋のように、ガス透過部が滅菌袋の中央部に位置していると、滅菌ガスの流入出路がふさがれてしまうため、十分に繊維製品の滅菌が出来なかったり、滅菌ガスが滅菌袋の内部に残留しやすいという課題があった。 In the gas sterilization process, the fiber products placed in the sterilization bag are sterilized in a state where a plurality of fiber products are placed in the sterilization case. In the gas sterilization, the sterilizing gas sufficiently enters the inside of the sterilization bag from the gas permeation unit, so that the fiber product sealed in the sterilization bag is sterilized. At this time, if the fiber product is packed in a sterilization bag, the middle of the sterilization bag is likely to swell, so the central part of the sterilization bag containing the fiber product contacts the wall of the adjacent sterilization bag or sterilization case, and the gas permeable part Is easily blocked. In particular, in a sterilized bag with a cover in which the outside of the gas permeable portion is covered with an exterior material, the gas permeable portion becomes bulky, and the possibility that the gas permeable portion and the cover are in close contact with each other is increased. Therefore, if the gas permeation part is located at the center of the sterilization bag as in the sterilization bag described in Patent Document 1, the sterilization gas inflow / outflow path is blocked, so that the fiber product can be sufficiently sterilized. There was a problem that no sterilization gas remained in the sterilization bag.
 すなわち、滅菌袋のガス透過部は、複数の滅菌袋を重ねて滅菌処理を行う場合においても、滅菌ガスの拡散を妨げず、かつ、エタノールを用いた滅菌袋のふき取り洗浄が可能な構成が必要である。 In other words, the gas permeation part of the sterilization bag must have a configuration that does not interfere with the diffusion of sterilization gas and can wipe and clean the sterilization bag using ethanol even when sterilization is performed by stacking multiple sterilization bags. It is.
 本発明は上記の現状を鑑みてなされたものであり、ガス滅菌用の滅菌袋を提供し、十分に滅菌された滅菌繊維製品を包装してなる滅菌処理済み繊維製品パッケージ体であって、内部における滅菌ガスの残留が抑制された滅菌処理済み繊維製品パッケージ体の製造方法を提供することを課題とする。 The present invention has been made in view of the above-described situation, and provides a sterilized bag for gas sterilization, which is a sterilized fiber product package body in which a sufficiently sterilized sterilized fiber product is packaged. An object of the present invention is to provide a method for producing a sterilized fiber product package in which the sterilization gas residue is suppressed.
 上記課題を解決するために本発明は以下の構成をとる。すなわち、開口部とガス透過部とを有し、略長方形の少なくとも2面を有する、滅菌処理に供される滅菌袋であって、
前記開口部は、前記略長方形の一辺に含まれ、
前記ガス透過部は、滅菌袋の少なくとも一方の面(かかる面を面Aと称する)に配置されており、かつ、前記ガス透過部は、該ガス透過部の全部を覆うことが可能なカバーを有し、
前記カバーは、前記ガス透過部を含む面Aに、一部分で固定されており、
かつ、前記ガス透過部が、以下の(1)および(2)を同時に満たす、滅菌袋。
(1)前記ガス透過部の重心が、前記面Aの対向する2つの辺の間の距離を1としたときに、面Aのいずれかの辺からの距離が0.02から0.2までの範囲に存在する。
(2)前記ガス透過部の面積(Sgas)は、前記面Aの全面積(S)に対し4%以上25%以下である。
In order to solve the above problems, the present invention has the following configuration. That is, a sterilization bag having an opening and a gas permeable portion and having at least two surfaces of a substantially rectangular shape, which is subjected to a sterilization process,
The opening is included on one side of the substantially rectangular shape,
The gas permeable portion is disposed on at least one surface of the sterilization bag (this surface is referred to as surface A), and the gas permeable portion includes a cover that can cover the entire gas permeable portion. Have
The cover is partially fixed to the surface A including the gas permeable portion,
And the sterilization bag with which the said gas permeation | transmission part satisfy | fills the following (1) and (2) simultaneously.
(1) When the center of gravity of the gas permeable portion is defined as a distance between two opposing sides of the surface A, the distance from any side of the surface A is 0.02 to 0.2. Exists in the range.
(2) The area (S gas ) of the gas permeable portion is 4% or more and 25% or less with respect to the total area (S 0 ) of the surface A.
 さらに、開口部とガス透過部とを有し、略長方形の少なくとも2面を有する、滅菌袋と、滅菌ガスを導入する滅菌用ケースを、少なくとも備え、繊維製品が、滅菌袋に収納される工程Aと、 前記滅菌袋の開口部を密閉し、繊維製品パッケージ体を得る工程Bと、 複数の前記繊維製品パッケージ体を滅菌用ケースに収納する際、前記滅菌袋に備えたガス透過部を上部に配置する工程Cと、複数の前記繊維製品パッケージ体が収納された前記滅菌用ケース滅菌ガスに暴露させる工程Dと、を有する、滅菌処理済み繊維製品パッケージ体の製造方法である。 Furthermore, the process includes at least a sterilization bag having an opening and a gas permeation part and having at least two substantially rectangular surfaces, and a sterilization case for introducing sterilization gas, and the textile product is stored in the sterilization bag. A, sealing the opening of the sterilization bag to obtain a fiber product package B, and when storing a plurality of the fiber product package bodies in a sterilization case, the gas permeable portion provided in the sterilization bag And a step D of exposing to the sterilization case sterilizing gas in which a plurality of the textile product packages are housed, and a method for producing a sterilized textile product package body.
 本発明によれば、カバー付きのガス透過部を一辺の端部に備える滅菌袋は、複数の滅菌袋を重ねて滅菌処理を行う場合においても、滅菌ガスの拡散が十分行われる。また、エタノールを用いた滅菌袋のふき取り洗浄においても、中身の繊維製品をエタノールで濡らすことなく洗浄ができる滅菌袋が得られる。そして、繊維製品を包装してなる繊維製品パッケージ体であって、滅菌処理がなされ、かつ、滅菌ガスの残留が少ない、滅菌処理済み繊維製品パッケージ体を提供することができる。 According to the present invention, a sterilization bag provided with a gas permeable portion with a cover at one end can sufficiently disperse sterilization gas even when a plurality of sterilization bags are stacked and sterilized. Further, in sterilization bag wiping and cleaning using ethanol, a sterilization bag capable of cleaning without damaging the content fiber product with ethanol can be obtained. And it is a textile product package body formed by packaging textile products, and a sterilized textile product package body that is sterilized and has a small amount of sterilization gas remaining can be provided.
本発明の滅菌袋の一例(カバーを1辺にヒートシールした滅菌袋を正面から見た外観概念図)。An example of the sterilization bag of this invention (appearance conceptual diagram which looked at the sterilization bag which heat-sealed the cover to one side from the front). 本発明の滅菌袋の一例(カバーを1辺にヒートシールした滅菌袋を背面から見た外観概念図)。An example of the sterilization bag of this invention (appearance conceptual diagram which looked at the sterilization bag which heat-sealed the cover to one side from the back). 本発明の滅菌袋の一例(カバーを3辺にヒートシールした滅菌袋を正面から見た外観概念図)。An example of the sterilization bag of this invention (appearance conceptual diagram which looked at the sterilization bag which heat-sealed the cover to 3 sides from the front). 滅菌袋における各辺の長さを示した概略図である。It is the schematic which showed the length of each side in a sterilization bag. 滅菌袋に繊維製品を封入した状態の概略図である。It is the schematic of the state which enclosed the textiles in the sterilization bag. 繊維製品パッケージ体を滅菌用ケースへ収納した概略図である。It is the schematic which accommodated the textiles package body in the case for sterilization. カバーのない滅菌袋の一例を示す外観の概略図。The schematic of the external appearance which shows an example of the sterilization bag without a cover. 従来の滅菌袋の一例を示す外観概略図。The external appearance schematic which shows an example of the conventional sterilization bag. 従来の滅菌袋における各辺の長さを示した概略図。Schematic which showed the length of each side in the conventional sterilization bag. 本発明における、複数の繊維製品パッケージ体を収納した滅菌用ケースのガス流出入を説明する概念図である。It is a conceptual diagram explaining the gas inflow / outflow of the case for sterilization which accommodated the several textile product package body in this invention. 従来技術における、複数の繊維製品パッケージ体を収納した滅菌用ケースのガス流出入を説明する概念図である。It is a conceptual diagram explaining the gas inflow / outflow of the case for sterilization which accommodated the several textile product package body in a prior art. ガス透過部の重心の位置を説明する概略図である。It is the schematic explaining the position of the gravity center of a gas permeation | transmission part.
 説明の順は、最初に、滅菌袋に繊維製品を封入し、滅菌ケースに入れて、滅菌処理を行う工程について、ガス透過部と滅菌ガスの流れを説明する。そして、ガス滅菌処理に供される本発明にかかる滅菌袋について説明を行う。最後に、滅菌済み繊維製品パッケージ体の製造方法について、説明する。 In the order of explanation, the flow of gas permeation section and the flow of sterilization gas will be explained first in the process of enclosing a textile product in a sterilization bag, putting it in a sterilization case, and performing sterilization. And the sterilization bag concerning this invention used for a gas sterilization process is demonstrated. Finally, a method for manufacturing a sterilized fiber product package will be described.
 繊維製品の滅菌処理は次の工程で処理される。まず、滅菌処理を行う繊維製品は、カバーおよびガス透過部および開口部を備え、かつ、略長方形の封筒状の滅菌袋に収納される。そして、前記開口部を密閉し、繊維製品パッケージ体を得る。複数の繊維製品パッケージ体は滅菌用ケースに積み重ねて収納され複数の繊維製品パッケージ体が収納された滅菌用ケースを殺菌ガスに暴露させる。これにより、繊維製品パッケージ体の中に包装された繊維製品が滅菌処理される。 The sterilization of textile products is processed in the following steps. First, a textile product to be sterilized is provided with a cover, a gas permeation section, and an opening, and is housed in a substantially rectangular envelope-shaped sterilization bag. Then, the opening is sealed to obtain a textile product package. The plurality of textile product packages are stacked and stored in the sterilization case, and the sterilization case containing the plurality of textile product packages is exposed to the sterilization gas. Thereby, the textile product packaged in the textile product package is sterilized.
 以下、滅菌袋に封入された繊維製品を滅菌処理する際の滅菌ガスの流れを説明する。複数の滅菌袋を重ねて滅菌処理を行う場合においても、滅菌ガスが拡散されやすく、滅菌処理の効果が得られるメカニズムについて図10および11を用いて説明する。
ここで、図10は、本発明において複数の繊維製品パッケージ体81を収納した滅菌用ケースの断面概略図を示し、図11は、従来技術において複数の繊維製品パッケージ体80を収納した滅菌用ケースの断面概略図を示す。
Hereinafter, the flow of the sterilization gas when the fiber product sealed in the sterilization bag is sterilized will be described. A mechanism in which sterilization gas is easily diffused and the effect of sterilization can be obtained even when performing sterilization by stacking a plurality of sterilization bags will be described with reference to FIGS.
Here, FIG. 10 shows a schematic cross-sectional view of a sterilization case containing a plurality of textile product packages 81 in the present invention, and FIG. 11 shows a sterilization case containing a plurality of textile product packages 80 in the prior art. FIG.
 滅菌処理済み繊維製品パッケージ体の製造方法においては、図10および11に示されるとおり、複数の繊維製品パッケージ体81を滅菌用ケース42に立てた状態で収納し、滅菌ガスによる滅菌工程に供するのが一般的である。そして、生産効率を考慮して、滅菌用ケースには可能な限り多くの繊維製品パッケージを収納したいとの要望がある。そうすると、繊維製品を滅菌袋に詰めると繊維製品パッケージ体の中央部から下方部が膨らみやすい事から、繊維製品パッケージ体の中央部から下方部は、隣接する繊維製品パッケージ体80や滅菌用ケースの壁面82に接触し、これらによって圧迫されることとなる。図11では、従来の繊維製品パッケージ体80が滅菌ケース42に入れられた状態を示している。滅菌袋の一方の面の中央部のみにガス透過部2とカバー6が存在する滅菌袋に、繊維製品が包装されてなる繊維製品パッケージ体80が複数個あり、それらが滅菌用ケースに収納されてなるものの断面図が示されている。このような場合、ガス透過部2は、このガス透過部が属する滅菌袋に包装されている繊維製品やカバー6と滅菌用ケースの壁面82または隣接する他の繊維製品パッケージ体とに圧迫され、それらが密着することで、ガス透過部2が塞がれてしまう。そのため、図11に示すように、ガス透過部には滅菌ガスの流れ83が到達しにくい。そして、このガス透過部2を介した滅菌ガスの滅菌袋内部への流出入が抑制され、結果として、滅菌袋に入れた繊維製品の滅菌が不十分となったり、滅菌ガスが繊維製品パッケージ体80の内部に残留しやすくなると考える。 In the method for manufacturing a sterilized textile product package body, as shown in FIGS. 10 and 11, a plurality of textile product package bodies 81 are stood in a sterilization case 42 and subjected to a sterilization process using a sterilization gas. Is common. In view of production efficiency, there is a demand for storing as many textile product packages as possible in the sterilization case. Then, when the fiber product is packed in a sterilization bag, the lower part easily swells from the center part of the fiber product package body, so that the lower part from the center part of the fiber product package body is adjacent to the adjacent fiber product package 80 or sterilization case It contacts the wall surface 82 and is pressed by these. FIG. 11 shows a state in which a conventional textile product package 80 is put in a sterilization case 42. There are a plurality of fiber product package bodies 80 in which fiber products are packaged in a sterilization bag in which the gas permeation part 2 and the cover 6 exist only in the center of one surface of the sterilization bag, and these are stored in a sterilization case. A cross-sectional view of the resulting structure is shown. In such a case, the gas permeation part 2 is pressed against the textile product or cover 6 packaged in the sterilization bag to which the gas permeation part belongs and the wall surface 82 of the sterilization case or another textile product package adjacent thereto, The gas permeation | transmission part 2 will be obstruct | occluded because they closely_contact | adhere. Therefore, as shown in FIG. 11, the flow 83 of the sterilizing gas is difficult to reach the gas permeable portion. Then, the inflow and outflow of the sterilization gas into the sterilization bag through the gas permeation unit 2 is suppressed, and as a result, the sterilization of the fiber product placed in the sterilization bag becomes insufficient, or the sterilization gas becomes the fiber product package body. It is considered that it tends to remain inside 80.
 一方で、図10では、ガス透過部2は、滅菌袋の上部、つまり、滅菌袋の一方の端部に設けられた滅菌袋に、繊維製品が包装されてなる繊維製品パッケージ体81が複数個、滅菌用ケースに収納されてなるものの断面図が示されている。このような場合、ガス透過部2は、滅菌袋におけるガス透過部2の特徴的な配置位置や繊維製品パッケージ体の滅菌用ケースへの特徴的な収納方法等により、このガス透過部2が属する滅菌袋に包装されている繊維製品やカバー6と滅菌用ケースの壁面82または隣接する他の繊維製品パッケージ体等とに圧迫されることはなく、ガス透過部2の周囲には十分な空間が確保される。そのため、図10に示すように、ガス透過部2を介して滅菌ガスの流れ83が滅菌袋内部まで到達しやすい。そして、滅菌ガス暴露工程における滅菌用ケース42が収納される滅菌空間への減圧処理後の滅菌ガス流入により繊維製品を滅菌するのに十分な量の滅菌ガスが短時間で滅菌袋内部に流入することとなる。ここで、滅菌空間とは、滅菌処理が行われる袋の内部空間のことである。結果として、得られる滅菌処理済み繊維製品パッケージ体に包装される繊維製品は十分に滅菌されたものとなる。また、滅菌処理工程が終了した後の滅菌空間への減圧処理により繊維製品パッケージ体81の内部の滅菌ガスはより確実に繊維製品パッケージ体の外に流出することとなると考える。 On the other hand, in FIG. 10, the gas permeation unit 2 includes a plurality of fiber product package bodies 81 in which a fiber product is packaged in a sterilization bag provided at an upper portion of the sterilization bag, that is, one end of the sterilization bag. A cross-sectional view of what is housed in a sterilization case is shown. In such a case, the gas permeable portion 2 belongs to the gas permeable portion 2 depending on the characteristic arrangement position of the gas permeable portion 2 in the sterilization bag, the characteristic storage method of the textile product package body in the sterilization case, and the like. The fiber product or the cover 6 packed in the sterilization bag and the wall surface 82 of the sterilization case 82 or another adjacent fiber product package body are not pressed, and there is sufficient space around the gas permeable portion 2. Secured. Therefore, as shown in FIG. 10, the sterilization gas flow 83 easily reaches the inside of the sterilization bag through the gas permeable portion 2. In a sterilization gas exposure step, a sufficient amount of sterilization gas flows into the sterilization bag in a short time by sterilization gas inflow into the sterilization space in which the sterilization case 42 is accommodated. It will be. Here, the sterilization space is an internal space of the bag in which sterilization is performed. As a result, the textile product packaged in the resulting sterilized textile product package is fully sterilized. Further, it is considered that the sterilization gas inside the fiber product package 81 flows out of the fiber product package more reliably by the decompression process to the sterilization space after the sterilization process is completed.
  (滅菌袋について)
 次に、上述のガス透過部2滅菌袋の実施形態の一例について図1、図2を用いて説明する。図1は、滅菌袋の一方の面(面Aと称する)の正面から見た概略図である。図2は、滅菌袋のもう一方の面から見た概略図である。
(About sterile bags)
Next, an example of an embodiment of the above-described gas permeable part 2 sterilization bag will be described with reference to FIGS. FIG. 1 is a schematic view seen from the front of one surface (referred to as surface A) of the sterilization bag. FIG. 2 is a schematic view seen from the other side of the sterilization bag.
 図1に示す滅菌袋1は、略長方形の封筒状の袋であり、ガス透過部2とカバー6とを有する。ガス透過部2は、カバー6で全面を覆われており、カバー6はヒートシール部4aにおいてヒートシールされることで、滅菌袋1に接合されている。滅菌袋1のガス透過部2、カバー6を除いた部分は、図1、2に示すとおり樹脂フィルム(正面)3a、樹脂フィルム(背面)3bからなり、ヒートシールすることで本発明でいう略長方形の封筒状の袋の形態としている。また、袋の4辺のうちの1辺は、繊維製品を封入後ヒートシールするための開口部5を設けている。 A sterilization bag 1 shown in FIG. 1 is a substantially rectangular envelope-shaped bag, and has a gas permeable portion 2 and a cover 6. The gas permeable portion 2 is entirely covered with a cover 6, and the cover 6 is joined to the sterilization bag 1 by being heat sealed in the heat seal portion 4 a. The portion excluding the gas permeable portion 2 and the cover 6 of the sterilization bag 1 is made up of a resin film (front surface) 3a and a resin film (back surface) 3b as shown in FIGS. It is in the form of a rectangular envelope-shaped bag. Also, one of the four sides of the bag is provided with an opening 5 for heat sealing after enclosing the textile product.
 ここで、ガス透過部2は、滅菌袋1の少なくとも一方の面(面A)に配置されている。ガス透過部2の重心は、前記面Aの対向する2つの辺の間の距離を1としたときに、前記2つの辺の少なくとも一方の辺から0.8以上0.98以下の位置、すなわち、面Aのいずれかの辺から0.02から0.2までの範囲に存在し、前記ガス透過部の面積(Sgas)の前記面Aの面積(S)に対する割合(%)、つまり、(Sgas)/(S)×100 において、4%以上25%以下であり、前記カバー6は前記ガス透過部2の全面を覆うことが可能であり、前記滅菌袋は、該滅菌袋の内部と外部とが前記面Aにおけるガス透過部を介して通気が可能である。 Here, the gas permeable portion 2 is disposed on at least one surface (surface A) of the sterilization bag 1. The center of gravity of the gas permeable portion 2 is a position from 0.8 to 0.98 from at least one of the two sides when the distance between two opposing sides of the surface A is 1. The ratio (%) of the area (S gas ) of the gas permeable portion to the area (S 0 ) of the surface A existing in a range from 0.02 to 0.2 from any side of the surface A, that is, , (S gas ) / (S 0 ) × 100 4 to 25%, the cover 6 can cover the entire surface of the gas permeable portion 2, and the sterilization bag is the sterilization bag. The inside and the outside can be ventilated through the gas permeable portion in the surface A.
 なお、ここで面Aが長方形である場合を例にとれば、対向する辺を長辺とした場合は、長辺の長さ(L)を1として、短辺から重心Gまでの距離に拠って求め、対向する辺を短辺とした場合は、短辺の長さ(W)を1として、長辺から重心Gまでの距離に拠って求める(図12を参照する)。なお、距離とは辺からの最短距離である。ここで面Aの全面がガス透過部2の場合には、重心Gの最短距離は、0.5となる
 本発明で言う「滅菌袋の内部と外部とが前記面Aにおける前記ガス透過部を介して通気が可能」とは、滅菌ガスが滅菌袋の内側に流入し、滅菌後に排出することが可能な状態をいう。そのためには、ガス透過部2を覆うことができるカバー6は、面Aのガス透過部2において周縁部の一部分で固定されており、ガス透過部2とカバー6の間が接合されておらず隙間が存在する部位がある。このような特徴を備える滅菌袋を用いて、滅菌処理済み繊維製品パッケージ体を得ることで、繊維製品は十分に滅菌されたものとなるとともに、滅菌ガスが残留することも抑制される。
Here, taking the case where the surface A is rectangular as an example, when the opposite side is a long side, the length (L) of the long side is set to 1, and the distance from the short side to the center of gravity G depends on the length. When the opposite side is a short side, the short side length (W) is set to 1, and the distance is determined based on the distance from the long side to the center of gravity G (see FIG. 12). The distance is the shortest distance from the side. Here, when the entire surface A is the gas permeable portion 2, the shortest distance of the center of gravity G is 0.5. In the present invention, “the inside and the outside of the sterilization bag define the gas permeable portion in the surface A. “Aeration is possible through” means a state in which sterilization gas can flow into the sterilization bag and be discharged after sterilization. For this purpose, the cover 6 that can cover the gas permeable part 2 is fixed at a part of the peripheral edge in the gas permeable part 2 of the surface A, and the gas permeable part 2 and the cover 6 are not joined. There is a part where a gap exists. By obtaining a sterilized fiber product package using a sterilization bag having such characteristics, the fiber product is sufficiently sterilized, and the sterilization gas is prevented from remaining.
 次に、開口部の位置について説明する。開口部は、滅菌袋に繊維製品を入れるための出入り口であり、滅菌袋に少なくとも1か所あればよい。開口部5は、滅菌袋のいずれかの辺に備えられる。滅菌袋が長方形である場合を例にとれば、長辺の一方の辺、または、短辺の一方の辺に少なくとも1つ備えられる。そして、開口部5は、ガス透過部2の位置との関係において、ガス透過部2の重心Gと最短距離にある辺に存在することが好ましい。図1では、開口部5は滅菌袋の短辺に備えられ、ガス透過部2の重心Gと最短距離にある辺に存在している。 Next, the position of the opening will be described. The opening is an entrance for entering the textile product into the sterilization bag, and it is sufficient that there is at least one place in the sterilization bag. The opening 5 is provided on any side of the sterilization bag. Taking the case where the sterilization bag is rectangular as an example, at least one is provided on one side of the long side or one side of the short side. And it is preferable that the opening part 5 exists in the side at the shortest distance from the center of gravity G of the gas permeable part 2 in relation to the position of the gas permeable part 2. In FIG. 1, the opening 5 is provided on the short side of the sterilization bag, and is present on the side at the shortest distance from the center of gravity G of the gas permeable part 2.
 図4を用いて、面積比について以下に説明する。滅菌袋の面Aの面積(S)は、ヒートシール部4a、4bを含めた外寸とする。面Aの面積(S)は、図4において、縦辺L(mm)と横辺W(mm)を乗じた、L×W(mm)となる。ガス透過部2の面積は、ヒートシール部は除いた有効内寸で考える。ヒートシール部については、後述する。ガス透過部2の面積(Sgas)は、図4において、縦辺lと横辺wを乗じたl×wとなる。従って、ガス透過部の面積(Sgas)の面A(S)に対する割合(%)は、
(Sgas)/(S)×100= (l×w)/(L×W)×100 で求められる。
The area ratio will be described below with reference to FIG. The area (S 0 ) of the surface A of the sterilization bag is an outer dimension including the heat seal portions 4a and 4b. The area (S 0 ) of the surface A is L × W (mm 2 ) obtained by multiplying the vertical side L (mm) and the horizontal side W (mm) in FIG. The area of the gas permeable portion 2 is considered as an effective internal dimension excluding the heat seal portion. The heat seal part will be described later. The area (S gas ) of the gas permeable portion 2 is l × w obtained by multiplying the vertical side l and the horizontal side w in FIG. Therefore, the ratio (%) of the area (S gas ) of the gas permeable portion to the surface A (S 0 ) is
(S gas ) / (S 0 ) × 100 = (1 × w) / (L × W) × 100
  (滅菌袋のガス透過部について)
 次に、本発明のガス透過部2について詳細に説明する。ガス透過部2はガス滅菌時に、高温の水蒸気やエチレンオキサイドガス(以下、EOGと記載する)等の滅菌ガスの滅菌袋の内外への通気部となる。
(About the gas permeation part of the sterilization bag)
Next, the gas permeation | transmission part 2 of this invention is demonstrated in detail. During gas sterilization, the gas permeation section 2 serves as a ventilation section for the inside and outside of a sterilization bag of sterilization gas such as high-temperature water vapor or ethylene oxide gas (hereinafter referred to as EOG).
 ガス透過部に使用される材料や原料、素材は、滅菌ガスを透過させることができ、かつ、菌を透過させない性質を有し、強度、ヒートシール性があれば特に限定されるものではないが、なかでも、滅菌紙が好ましい。ここで言う滅菌紙とは、気体透過性と微生物不通過性、強度、ヒートシール性とを併せ持つ、紙、または不織布、またはそれらの複合体の総称である。中でも不織布が好ましく、以下、不織布を例に説明する。 The material, raw material, and material used for the gas permeation part are not particularly limited as long as they can permeate sterilization gas and do not permeate bacteria, and have strength and heat sealability. Of these, sterilized paper is preferable. The term “sterilized paper” as used herein is a general term for paper, nonwoven fabric, or a composite thereof having both gas permeability, microorganism impermeableness, strength, and heat sealability. Among these, a nonwoven fabric is preferable, and the nonwoven fabric will be described as an example below.
 ガス透過部に使用される不織布を形成する繊維の原料としては、例えば、ポリエチレン、ポリプロピレン等のポリオレフィン、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリ乳酸等のポリエステル、6ナイロンや66ナイロン等のポリアミド、テフロン(登録商標)、ポリスチレン、ポリフェニレンサルファイト、ポリカーボネート、アイオノマー、エチレン-酢酸ビニル共重合体、エチレン-アクリレート共重合体等の熱可塑性樹脂及びこれらの混合物を適宜用いることができる。また、これらの熱可塑性樹脂を芯鞘構造に共押し出しした繊維も使用することができる。 Examples of the raw material of the fibers forming the nonwoven fabric used in the gas permeable part include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, polybutylene terephthalate and polylactic acid, polyamides such as 6 nylon and 66 nylon, and teflon ( (Registered trademark), polystyrene, polyphenylene sulfite, polycarbonate, ionomer, ethylene-vinyl acetate copolymer, ethylene-acrylate copolymer and other thermoplastic resins, and mixtures thereof can be used as appropriate. Moreover, the fiber which coextruded these thermoplastic resins to the core-sheath structure can also be used.
 不織布の材質としては、例えば、湿式不織布やレジンボンド式乾式不織布、サーマルボンド式乾式不織布、スパンボンド式乾式不織布、ニードルパンチ式乾式不織布、ウォータジェットパンチ式乾式不織布、メルトブロー式乾式不織布またはフラッシュ紡糸式乾式不織布が使用できる。なかでも、フラッシュ紡糸式乾式不織布は、繊維カスの発生が少なく、糸抜けも少ないため、より好適に用いることができる。例えば、市販されているタイベック(登録商標)が、気体透過性と微生物不通過性、強度、ヒートシール性がよく好適に用いられる。不織布の表面にヒートシール性が無い場合、ヒートシール剤を公知の技術によって付与できる。例えば、予め、グラビアコート、ディップコート、エアナイフコート、ブレードコート、ロールコート、バーコート等、公知のコーティング方法によって塗布してよい。ヒートシール性を持たせることで、ガス透過部とその他の部位とのヒートシールが可能となる。ヒートシール剤としては、ポリエチレンなどの融点が160℃以下の熱可塑性樹脂が好適に用いられる。 Nonwoven fabric materials include, for example, wet nonwoven fabrics, resin bond dry nonwoven fabrics, thermal bond dry nonwoven fabrics, spunbond dry nonwoven fabrics, needle punch dry nonwoven fabrics, water jet punch dry nonwoven fabrics, melt blown dry nonwoven fabrics or flash spinning types. A dry nonwoven fabric can be used. Among these, the flash-spun dry nonwoven fabric can be used more suitably because it generates less fiber debris and has less yarn loss. For example, commercially available Tyvek (registered trademark) is suitably used because of its good gas permeability, microbial impermeability, strength, and heat sealability. When the surface of the nonwoven fabric has no heat sealability, a heat sealant can be applied by a known technique. For example, it may be applied in advance by a known coating method such as gravure coating, dip coating, air knife coating, blade coating, roll coating, and bar coating. By providing heat sealability, heat sealing between the gas permeable portion and other parts can be performed. As the heat sealant, a thermoplastic resin having a melting point of 160 ° C. or less, such as polyethylene, is preferably used.
 不織布の目付は、30g/m2以上、150g/m2以下のものが好ましい。目付が30g/m2以上にすることで、摩耗強度や突き刺し強度が高くなり、不織布が破れる事による袋内部へのバクテリアが混入するリスクが低くなる。一方、目付を150g/m2以下にする事で、ガスの透過性を確保でき、かつコスト的にも有利となり好ましい。 The basis weight of the nonwoven fabric is preferably 30 g / m 2 or more and 150 g / m 2 or less. By setting the basis weight to 30 g / m 2 or more, the wear strength and the piercing strength are increased, and the risk of bacteria entering the bag due to the breaking of the nonwoven fabric is reduced. On the other hand, it is preferable that the basis weight be 150 g / m 2 or less because gas permeability can be secured and the cost is advantageous.
 不織布の透気度は、JIS P8117ガーレー法で1秒/100ml以上、600秒/100ml以下であることが好ましい。透気度が小さいほど、ガス滅菌時に滅菌袋の内部にガスが流出入しやすいため、ガス滅菌時間を短くできるため好ましい。一方、1秒/100ml未満の場合は、外気からバクテリアが混入するリスクが高くなるため、好ましくない。逆に、透気度が600秒/100mlより大きいと、滅菌袋にガスが流入出するのに時間を要するため、ガス滅菌時間が長くなってしまい、生産上好ましくない。不織布のバクテリアバリア性は、高いほど好ましいが、例えばASTM F1608法でLRV2以上が好ましく、更には3以上がより好ましく、4以上が特に好ましい。 The air permeability of the nonwoven fabric is preferably 1 second / 100 ml or more and 600 seconds / 100 ml or less according to JIS P8117 Gurley method. The smaller the air permeability, the more easily gas flows into and out of the sterilization bag during gas sterilization, which is preferable because the gas sterilization time can be shortened. On the other hand, the case of less than 1 second / 100 ml is not preferable because the risk of contamination of bacteria from the outside air increases. On the contrary, if the air permeability is larger than 600 seconds / 100 ml, it takes time for the gas to flow into and out of the sterilization bag, so the gas sterilization time becomes longer, which is not preferable in production. The bacterial barrier property of the nonwoven fabric is preferably as high as possible, but for example, AST R1 is preferably 2 or more, more preferably 3 or more, and particularly preferably 4 or more according to ASTM F1608 method.
  (滅菌袋の外装の材質について)
 滅菌袋を形成する樹脂フィルムは、滅菌袋の正面を形成する樹脂フィルム(正面)3aと滅菌袋の背面を形成する樹脂フィルム(背面)3bからなる。通常、樹脂フィルム(正面)3aと樹脂フィルム(背面)3bは同じ材料が用いられる。
(About the material of the exterior of the sterilization bag)
The resin film forming the sterilization bag includes a resin film (front surface) 3a that forms the front surface of the sterilization bag and a resin film (back surface) 3b that forms the back surface of the sterilization bag. Usually, the same material is used for the resin film (front surface) 3a and the resin film (back surface) 3b.
 樹脂フィルムに使用される材料や原料、素材は、強度、ヒートシール性があれば特に限定されず公知のものを使用できる。 The materials, raw materials, and materials used for the resin film are not particularly limited as long as they have strength and heat sealability, and known materials can be used.
 樹脂フィルムは、その材質について特に限定されることはなく、従来公知の材質、加工技術・条件を用いて作製される。袋の内容物の視認性の点から半透明もしくは透明が好ましく、溶融押出法やカレンダー法等で成形したヒートシール性を有する樹脂フィルムが好適に用いられる。一例として、ポリエチレン、ポリプロピレン等のポリオレフィン、ポリエチレンテレフタレート、ポリブチレンテレフタレート等のポリエステル、6ナイロンや66ナイロン等のポリアミド、ポリカーボネート、ポリスチレン、ポリフェニレンサルファイト、アイオノマー、エチレン-酢酸ビニル共重合体、エチレン-アクリレート共重合体及びこれらの積層フィルム等を挙げることができるが、これらに限定されるものではない。これらの樹脂のうち、耐エタノール性の観点からは、ポリオレフィンやポリエステルが特に好ましく使用できる。ポリアミド等、耐エタノール性に若干劣る樹脂についても、耐エタノール性に優れた他の樹脂と積層して使用することは何ら差し支えない。 The material of the resin film is not particularly limited, and is produced using conventionally known materials, processing techniques and conditions. Semi-transparent or transparent is preferable from the viewpoint of the visibility of the contents of the bag, and a resin film having heat sealing properties formed by a melt extrusion method or a calendar method is preferably used. Examples include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as 6 nylon and 66 nylon, polycarbonate, polystyrene, polyphenylene sulfite, ionomer, ethylene-vinyl acetate copolymer, ethylene acrylate. Although a copolymer, these laminated films, etc. can be mentioned, it is not limited to these. Of these resins, polyolefins and polyesters are particularly preferably used from the viewpoint of ethanol resistance. A resin such as polyamide, which is slightly inferior in ethanol resistance, can be laminated with another resin excellent in ethanol resistance.
 樹脂フィルムの耐エタノール性は、JIS T8030(2005)に定める耐透過性試験において、エタノールで試験した場合、クラス1以上が好ましく、より好ましくはクラス2以上、更により好ましくはクラス3以上である。 The ethanol resistance of the resin film is preferably class 1 or higher, more preferably class 2 or higher, even more preferably class 3 or higher, when tested with ethanol in the permeation resistance test defined in JIS T8030 (2005).
 樹脂フィルムの表面にヒートシール性が無い場合、ヒートシール性のある樹脂フィルムを接着剤で貼り合わせたり、共押し出し法やタンデム法によってヒートシール性のある樹脂フィルムを積層成膜したり、予め、グラビアコート、ディップコート、エアナイフコート、ブレードコート、ロールコート、バーコート等、公知のコーティング方法によってヒートシール剤を塗布してよい。ヒートシール性を持たせることで、ガス透過部や樹脂フィルムの他部位等とヒートシールが可能となる。ヒートシール性のある樹脂としては、ポリエチレンなどの融点が160℃以下の熱可塑性樹脂が好適に用いられる。 If the surface of the resin film is not heat-sealable, a heat-sealable resin film is bonded with an adhesive, or a heat-sealable resin film is laminated by a co-extrusion method or a tandem method. The heat sealant may be applied by a known coating method such as gravure coating, dip coating, air knife coating, blade coating, roll coating, and bar coating. By providing heat sealing properties, heat sealing can be performed with the gas permeable portion, other portions of the resin film, and the like. As the resin having heat sealability, a thermoplastic resin having a melting point of 160 ° C. or less such as polyethylene is preferably used.
  (滅菌袋の構成と滅菌ケースへの収納)
 本発明の滅菌袋の形状は、略長方形の封筒状である。本発明で言う略長方形とは、概ね長方形であればよく、4つの角がすべて直角ではなく丸まっていても良い。
(Configuration of sterilization bag and storage in sterilization case)
The shape of the sterilization bag of the present invention is a substantially rectangular envelope. The substantially rectangular shape referred to in the present invention may be a substantially rectangular shape, and all four corners may be rounded instead of right angles.
 図6に例示したように、滅菌袋の形状が略長方形等の封筒状であると、評価用繊維製品パッケージ体50を、ガス透過部(図6では、ガス透過部2はカバー6の下に存在する)が配設された部位を上にして、滅菌用ケース42に入れやすい。そして、まとめて滅菌する際などに滅菌袋が安定するため、取り扱いも楽であるし、ガス透過部2が重なることで滅菌ガスの流入出路を塞ぐことも少ない。その結果、滅菌性能にばらつきが少ないガス滅菌処理を行う事が可能となる。 As illustrated in FIG. 6, if the sterilization bag has an envelope shape such as a substantially rectangular shape, the evaluation fiber product package 50 is placed under the gas permeable portion (in FIG. 6, the gas permeable portion 2 is under the cover 6. It is easy to put it in the sterilization case 42 with the portion where it is) facing up. And since a sterilization bag is stabilized when sterilizing collectively etc., it is easy to handle, and the gas permeation | transmission part 2 overlaps, and there are few cases where the inflow / outflow path of sterilization gas is blocked. As a result, it is possible to perform a gas sterilization process with little variation in sterilization performance.
 ガス透過部が配設されている位置は滅菌袋の少なくとも一方の面(面A)である。また、ガス透過部の重心は、面A(面Aは、略長方形である)の対向する2つの辺の間の距離を1としたときに、前記2つの辺の一方の辺から0.8以上0.98以下の位置、すなわち、面Aのいずれかの辺から0.02から0.2までの範囲に存在する。つまり、ガス透過部は、面Aが有する4つの端部のうちの一つの端部に特定の位置に、寄って存在している。この様な構成であることで、繊維パッケージを滅菌用ケースに収納する際に、ガス透過部が略鉛直方向の上方にくるように、繊維製品パッケージ体を滅菌用ケース42に収納することで、上記の本発明の効果が得られるのである。ここで、滅菌袋の面Aは略長方形であるため、面Aは4つの辺を有する。つまり、滅菌袋の面Aは、2組の対向する2つの辺のセットを有する。ここで、本発明においては、2組の対向する2つの辺のセットのうち、少なくとも1組の対向する2つの辺において、ガス透過部の重心が、対向する2つの辺の間の距離を1としたときに、前記2つの辺の一方の辺から0.8以上0.98以下の位置、すなわち、面Aのいずれかの辺から0.02から0.2までの範囲に存在していればよい。滅菌袋に繊維製品が充填される場合、滅菌袋の辺の端部、つまり、滅菌袋の上方ほど繊維製品がかからない範囲が存在するため、ガスが透過しやすくなる。このような例としては、前記2つの辺の一方の辺から0.9以上0.98以下の位置、すなわち、面Aのいずれかの辺から0.02から0.1までの範囲がより好ましい。このとき、長方形のガス透過部は、およそ端部から0.2の範囲内となる。 The position where the gas permeable part is disposed is at least one surface (surface A) of the sterilization bag. Further, the center of gravity of the gas permeable portion is 0.8 from one side of the two sides when the distance between two opposing sides of the plane A (the plane A is substantially rectangular) is 1. The position is 0.98 or less, that is, in a range from 0.02 to 0.2 from any side of the surface A. That is, the gas permeation part is close to a specific position at one of the four end parts of the surface A. By having such a configuration, when the fiber package is stored in the sterilization case, the fiber product package body is stored in the sterilization case 42 so that the gas permeation portion is located substantially upward in the vertical direction. The effect of the present invention is obtained. Here, since the surface A of the sterilization bag is substantially rectangular, the surface A has four sides. That is, the surface A of the sterilization bag has two sets of two opposite sides. Here, in the present invention, the center of gravity of the gas permeation section has a distance of 1 between two opposing sides in at least one set of two opposing sides out of two sets of two opposing sides. If it is present at a position of 0.8 to 0.98 from one of the two sides, that is, within a range from 0.02 to 0.2 from any side of the surface A. That's fine. When the sterilization bag is filled with the fiber product, there is a range where the fiber product is not applied toward the end of the side of the sterilization bag, that is, the upper part of the sterilization bag. As such an example, a position from 0.9 to 0.98 from one of the two sides, that is, a range from 0.02 to 0.1 from any side of the surface A is more preferable. . At this time, the rectangular gas permeable portion is within the range of 0.2 from the end portion.
 ガス滅菌においては、滅菌ガスがガス透過部から滅菌袋の内部に十分に浸入することで、滅菌袋に封入された繊維製品が滅菌処理される。そのため、滅菌ガスの拡散を妨げないだけの空間がガス透過部の周囲に必要である。そして、上記のとおり、繊維製品パッケージ体を滅菌用ケース42に収納する際に、ガス透過部が略鉛直方向の上方にくるように繊維パッケージを滅菌用ケースに収納することで、ガス透過部が隣接する繊維製品パッケージや、滅菌用ケースの壁面からの干渉を受けにくく、安定した滅菌が可能となる。また、滅菌袋は複数のガス透過部を有していても良く、少なくとも1つのガス透過部が滅菌袋の一辺の端部にあればよい。 In gas sterilization, the sterilization gas sufficiently penetrates into the inside of the sterilization bag from the gas permeation section, so that the fiber product sealed in the sterilization bag is sterilized. Therefore, a space that does not hinder the diffusion of the sterilizing gas is required around the gas permeable portion. Then, as described above, when the textile product package is housed in the sterilization case 42, the gas permeable portion is accommodated in the sterilization case so that the gas permeable portion is positioned substantially upward in the vertical direction. Stable sterilization is possible because it is less susceptible to interference from the adjacent fiber product package and the wall surface of the sterilization case. Further, the sterilization bag may have a plurality of gas permeable portions, and at least one gas permeable portion may be provided at the end of one side of the sterilization bag.
 また、滅菌袋の面Aの面積に対するガス透過部の面積の割合((ガス透過部の面積/面Aの面積)×100)が4%以上25%以下である。ここで、ガス透過部の面積割合が4%未満の場合は、滅菌用ガスの流入・排出を十分でなく、繊維製品の滅菌が十分に行われなかったり、滅菌処理済み繊維製品パッケージ体の内部に滅菌ガスが残留する傾向がみられる。また、上記の割合が、5%未満であっても、滅菌時間を長くすることで、繊維製品の十分な滅菌が達成される可能性はあるが、この場合には、滅菌時間が長期化することで滅菌処理済み繊維製品パッケージ体の生産性が劣ったものとなる傾向がみられる。一方で、ガス透過部の面積を、徒らに広げてもガス滅菌の効果が飛躍的に向上するわけではなく、ガス透過部を大きくすれば、それに伴って高価な傾向にあるガス透過部の材料の使用量が増えてコストアップに至るため、上限としては25%である。 The ratio of the area of the gas permeable portion to the area of the surface A of the sterilization bag ((area of the gas permeable portion / area of the surface A) × 100) is 4% or more and 25% or less. Here, when the area ratio of the gas permeation part is less than 4%, the inflow / discharge of the sterilization gas is not sufficient, and the fiber product is not sufficiently sterilized, or the inside of the sterilized fiber product package body There is a tendency for sterilization gas to remain. Moreover, even if the above ratio is less than 5%, there is a possibility that sufficient sterilization of the textile product can be achieved by increasing the sterilization time, but in this case, the sterilization time is prolonged. As a result, the productivity of the sterilized textile product package tends to be inferior. On the other hand, even if the area of the gas permeable part is increased, the effect of gas sterilization is not dramatically improved. If the gas permeable part is enlarged, the gas permeable part tends to be expensive. Since the amount of the material used increases and the cost increases, the upper limit is 25%.
  (ガス透過部のカバーについて)
 滅菌袋は、ガス透過部の全面を覆うようにカバー6を備えている。
(About the gas permeation cover)
The sterilization bag is provided with a cover 6 so as to cover the entire surface of the gas permeable portion.
 本発明におけるカバー6は、滅菌袋のガス透過部をエタノール等で拭き取り洗浄した時に、ガス透過部とエタノールが接触することを抑制できる。また、ガス透過部の全面をカバーすることでガス透過部の損傷も抑制する事が可能となる。もし、カバー6がガス透過部の全面を覆っていないと、エタノール等で滅菌袋を拭き取り洗浄した際に、カバーで覆われていないガス透過部から、滅菌袋内にエタノールが浸透し、繊維製品が濡れて染みになったり、エタノールに溶解した汚れ等の不純物が滅菌袋内に導入されてしまうため好ましくない。また、カバー6で覆われていない部分の損傷を抑制することが出来ないため好ましくない。カバー6の設置形態の一例について図面を参照して説明する。カバーは、図1と図3に示すようにガス透過部全面を覆っており、カバー6とガス透過部2とが接合されてヒートシール部4aが形成される。また、カバー6の3辺(上端部、左右端部)がコの字型にガス透過部とヒートシール部4a、4bを形成した3辺固定の方が好ましい。3辺固定することで、滅菌袋取り扱い時にカバー6がめくれて、ガス透過部が露出するリスクを抑制でき、さらにエタノール拭き取り洗浄がしやすく、滅菌用ケースに収納する際もカバーがめくれないため収納がしやすくなる。 The cover 6 in the present invention can suppress contact between the gas permeable portion and ethanol when the gas permeable portion of the sterilization bag is wiped and washed with ethanol or the like. Moreover, it is possible to suppress damage to the gas permeable part by covering the entire surface of the gas permeable part. If the cover 6 does not cover the entire surface of the gas permeation part, when the sterilization bag is wiped and washed with ethanol or the like, ethanol penetrates into the sterilization bag from the gas permeation part not covered with the cover, and the textile product This is not preferable because it may become wet and stain, or impurities such as dirt dissolved in ethanol may be introduced into the sterilization bag. Further, it is not preferable because damage to a portion not covered with the cover 6 cannot be suppressed. An example of the installation form of the cover 6 will be described with reference to the drawings. As shown in FIGS. 1 and 3, the cover covers the entire surface of the gas permeable part, and the cover 6 and the gas permeable part 2 are joined to form the heat seal part 4a. Further, it is preferable to fix the three sides of the cover 6 in which the three sides (upper end portion, left and right end portions) are U-shaped and the gas permeable portion and the heat seal portions 4a and 4b are formed. By fixing three sides, the cover 6 can be turned over when handling a sterilization bag, the risk of exposing the gas permeation part can be suppressed, and it can be easily wiped off with ethanol, and the cover does not turn over when stored in a sterilization case. It becomes easy to do.
 なお、本発明の滅菌袋においては、ガス透過部の全面がカバー6で、滅菌袋の内部と外部とがガス透過部を介して通気可能な状態で覆われている。具体的には、カバー6とガス透過部2とが固定された部位に囲まれていないガス透過部を少なくともガス透過部の一部に有する。言い換えると、ガス透過部の少なくとも一辺とカバーの対応する一辺とが、周縁で接合されていない。これにより、ガス透過部の全体がカバーで覆われていても滅菌袋の内部と外部とがガス透過部を介して通気可能な状態が実現される。 In the sterilization bag of the present invention, the entire surface of the gas permeable part is covered with a cover 6 so that the inside and the outside of the sterilization bag can be vented through the gas permeable part. Specifically, at least a part of the gas permeable portion includes a gas permeable portion that is not surrounded by a portion where the cover 6 and the gas permeable portion 2 are fixed. In other words, at least one side of the gas permeable portion and a corresponding side of the cover are not joined at the periphery. Thereby, even if the whole gas permeation | transmission part is covered with the cover, the state which can ventilate the inside and the exterior of a sterilization bag via a gas permeation | transmission part is implement | achieved.
 本発明において、ガス透過部とカバーの面積比は1:1から1:1.5、すなわち、カバー6の面積(Scov)が、ガス透過部2の面積(Sgas)に対して、100%以上150%以下である。より好ましくは、1:1から1:1.1、すなわち、カバーの面積(Scov)が、ガス透過部の面積(Sgas)に対して100%以上110%以下である。カバー6の面積比が1未満(100%未満)の場合は、被覆されないガス透過部が生じるため、エタノール拭き取り洗浄時に、その被覆されない部分からエタノールが浸透してしまい、好ましくない。また、カバー6の面積比が1.5(150%)を超えると、滅菌ガスの流入・排出がしにくくなるし、カバー6として使用する樹脂フィルムが増えることで、廃棄時の環境負荷の増大にも繋がるため、好ましくない。 In the present invention, the area ratio between the gas permeable portion and the cover is 1: 1 to 1: 1.5, that is, the area (S cov ) of the cover 6 is 100 with respect to the area (S gas ) of the gas permeable portion 2. % To 150%. More preferably, the ratio is 1: 1 to 1: 1.1, that is, the area (S cov ) of the cover is 100% or more and 110% or less with respect to the area (S gas ) of the gas permeable portion. When the area ratio of the cover 6 is less than 1 (less than 100%), an uncoated gas permeable portion is generated, and thus ethanol penetrates from the uncoated portion at the time of ethanol wiping and washing, which is not preferable. In addition, if the area ratio of the cover 6 exceeds 1.5 (150%), it becomes difficult for sterilization gas to flow in and out, and an increase in the resin film used as the cover 6 increases the environmental load during disposal. Is also not preferable.
 図4を引用して面積比について以下に説明する。ガス透過部2、及びカバー6のいずれにおいても、ヒートシール部は除いた有効内寸で考える。ガス透過部の面積は、縦辺lと横辺wを乗じたl×wとなり、カバーの面積は、縦辺cyと横辺cxを乗じたcy×cxとなる。従ってガス透過部とカバーの面積比は、(l×w):(cy×cx)となる。従って、カバーの面積(Scov)のガス透過部の面積(Sgas)に対する割合(%)は、(Scov)/(Sgas)×100=(cy×cx)/(l×w)×100 で求められる。 The area ratio will be described below with reference to FIG. In any of the gas permeable part 2 and the cover 6, the effective internal dimensions excluding the heat seal part are considered. The area of the gas permeable portion is l × w obtained by multiplying the vertical side l and the horizontal side w, and the area of the cover is cy × cx obtained by multiplying the vertical side cy and the horizontal side cx. Therefore, the area ratio of the gas permeable part and the cover is (l × w) :( cy × cx). Therefore, the ratio of the area of the gas permeable portion of the cover area (S cov) (S gas) (%) is, (S cov) / (S gas) × 100 = (cy × cx) / (l × w) × 100 is required.
 なお、図4においては説明の便宜上、ガス透過部を配設した袋体と、カバーとを分離した形で描写しているが、実際には、図3に示す通り、カバーはヒートシール部4a、4bを介して袋体と一体化されている。滅菌袋の組み立て方法である、ヒートシールについては、後述する。 In FIG. 4, for convenience of explanation, the bag body provided with the gas permeable portion and the cover are depicted in a separated form, but in actuality, as shown in FIG. 3, the cover is the heat seal portion 4a. 4b is integrated with the bag body. Heat sealing, which is a method for assembling a sterilization bag, will be described later.
 カバー6に使用される材料や原料、素材は、ヒートシール性および耐エタノール性があれば特に限定されない。 The material, raw material, and material used for the cover 6 are not particularly limited as long as they have heat sealability and ethanol resistance.
 カバー6の材質として、前記の樹脂フィルムやガス透過部と同様の樹脂材料を使用することができる。エタノール拭き取り洗浄適性や防塵、ガス透過部の損傷抑制の観点から、カバー6は、不織布や紙の形態であるよりは、樹脂フィルム形態である事が好ましく、生産の観点からは、樹脂フィルムと同素材であることがより好ましい。カバー6が不織布や紙の場合、予め撥アルコール性を付与する必要があるが、その方法は特に限定されることはなく、従来公知の加工技術・条件を適宜選択できる。例えば、シリコン系やフッ素系の撥水撥油剤を用いた撥水撥油処理が挙げられる。 As the material of the cover 6, the same resin material as that of the resin film and the gas permeable portion can be used. The cover 6 is preferably in the form of a resin film rather than in the form of a non-woven fabric or paper from the viewpoint of ethanol wiping and cleaning suitability, dust prevention, and suppression of damage to the gas permeation part. More preferably, it is a material. When the cover 6 is a nonwoven fabric or paper, it is necessary to impart alcohol repellency beforehand, but the method is not particularly limited, and conventionally known processing techniques and conditions can be appropriately selected. For example, a water- and oil-repellent treatment using a silicon-based or fluorine-based water and oil repellent agent can be mentioned.
 カバー6の表面にヒートシール性が無い場合、ヒートシール性のある樹脂フィルムを接着剤で貼り合わせたり、共押し出し法やタンデム法によってヒートシール性のある樹脂フィルムを積層成膜したり、予め、グラビアコート、ディップコート、エアナイフコート、ブレードコート、ロールコート、バーコート等、公知のコーティング方法によってヒートシール剤を塗布してよい。ヒートシール性のある樹脂としては、ポリエチレンなどの融点が160℃以下の熱可塑性樹脂が好適に用いられる。 When the surface of the cover 6 is not heat-sealable, a heat-sealable resin film is bonded with an adhesive, or a heat-sealable resin film is laminated by a coextrusion method or a tandem method. The heat sealant may be applied by a known coating method such as gravure coating, dip coating, air knife coating, blade coating, roll coating, and bar coating. As the resin having heat sealability, a thermoplastic resin having a melting point of 160 ° C. or less such as polyethylene is preferably used.
  (滅菌ガスの残留について)
 本発明で言う滅菌袋の内部と外部が通気可能な状態とは、滅菌ガスが滅菌袋の内側に流入し、滅菌後に排出することが可能な状態をいう。特に、ISO10993-7:2008では、一時的暴露医療機器の患者に対する1日のエチレンオキサイド(以下、EOと記載する)の平均容量は、4mgを超えてはならないと規定されている。後述する実施例のEOG滅菌条件でEOG滅菌をした時に、後述する測定方法(4)項のJIS T0993-7:2012に基づき測定した繊維製品のEO残留濃度がエアレーションルームに120時間保管後において4mg以下/繊維製品が好ましく、エアレーションルームに24時間保管後において4mg以下/繊維製品が好ましい。エアレーションルームの保管日数が120時間より長いと、繊維製品の出荷までに時間を要すため好ましくなく、エアレーションルームの保管日数が短いほど、生産上好ましい。
(About sterilization gas residue)
The state in which the inside and the outside of the sterilization bag can be referred to in the present invention means a state in which sterilization gas can flow into the sterilization bag and be discharged after sterilization. In particular, ISO 10993-7: 2008 stipulates that the average daily dose of ethylene oxide (hereinafter referred to as EO) for patients with temporarily exposed medical devices should not exceed 4 mg. When EOG sterilization was performed under the EOG sterilization conditions of the examples described later, the EO residual concentration of the fiber product measured based on JIS T0993-7: 2012 in the measurement method (4) described later was 4 mg after being stored in the aeration room for 120 hours. Or less / textile product is preferred, and after storage for 24 hours in the aeration room, 4 mg or less / textile product is preferred. It is not preferable that the aeration room is kept longer than 120 hours because it takes time to ship the textile product. The shorter the aeration room is, the more preferable for production.
  (ヒートシール部の剥離強度について)
 各ヒートシール部の一例として、樹脂フィルム(正面)3a/樹脂フィルム(背面)3b、カバー6/ガス透過部2、樹脂フィルム(正面)3a/ガス透過部2、樹脂フィルム(正面)3a/ガス透過部2/樹脂フィルム(背面)3bの固定方法は、例えば、電動シーラーによる固定や高周波ウェルダーによる固定、超音波による固定、接着剤による固定、ヒートシールによる固定、両面テープによる固定など、公知の加工技術・条件を選択することができる。樹脂フィルムと、ガス透過部と、カバーとを一工程で安定に接合できる、ヒートシールによる固定が特に好ましい。ヒートシールの方式は特に限定されず、熱板方式、インパルス方式等、公知の方式が適用できる。
(About peel strength of heat seal part)
As an example of each heat seal part, resin film (front) 3a / resin film (back) 3b, cover 6 / gas permeable part 2, resin film (front) 3a / gas permeable part 2, resin film (front) 3a / gas The fixing method of the transmission part 2 / resin film (rear surface) 3b is known, for example, fixing with an electric sealer, fixing with a high frequency welder, fixing with ultrasonic waves, fixing with an adhesive, fixing with heat sealing, fixing with double-sided tape, etc. Processing technology and conditions can be selected. Fixing by heat sealing is particularly preferable because the resin film, the gas permeable portion, and the cover can be stably joined in one step. The heat sealing method is not particularly limited, and a known method such as a hot plate method or an impulse method can be applied.
 ガス透過部とカバー、および、ガス透過部と樹脂フィルムを固定する際、ヒートシール部の剥離強度は、2N/12mm以上が好ましく、4N/12mm以上がより好ましい。2N/12mm以上にすることで、ヒートシール部が剥離することによる滅菌袋内部へバクテリアが混入するリスクが低くなる。一方、上限は、40N/12mm以下が好ましく、より好ましくは30N/12mm以下である。40N/12mm以上の場合、ガス透過部がフィルムと強固に結合し、シール部分が硬くなり折り曲げた時に損傷しやすくなるため好ましくない。 When fixing the gas permeable part and the cover, and the gas permeable part and the resin film, the peel strength of the heat seal part is preferably 2N / 12 mm or more, more preferably 4N / 12 mm or more. By making it 2N / 12 mm or more, the risk of bacteria being mixed into the sterilization bag due to peeling of the heat seal portion is reduced. On the other hand, the upper limit is preferably 40 N / 12 mm or less, more preferably 30 N / 12 mm or less. In the case of 40 N / 12 mm or more, the gas permeable portion is firmly bonded to the film, and the seal portion becomes hard and is easily damaged when bent.
 樹脂フィルム(正面)3aと樹脂フィルム(背面)3bのヒートシール部の剥離強度は10N/12mm以上が好ましく、20N/12mm以上がより好ましい。上限は60N/12mm以下が好ましい。10N/12mm未満の場合、ヒートシールが弱く、接合部が剥がれやすくなる。60N/12mm以上の場合、シール部分が硬くなり好ましくない。 The peel strength of the heat seal part between the resin film (front surface) 3a and the resin film (back surface) 3b is preferably 10 N / 12 mm or more, and more preferably 20 N / 12 mm or more. The upper limit is preferably 60 N / 12 mm or less. When it is less than 10 N / 12 mm, the heat seal is weak and the joint is easily peeled off. When it is 60 N / 12 mm or more, the seal portion becomes hard, which is not preferable.
 樹脂フィルムとガス透過部、および、カバーに使用される材質は、滅菌処理における耐熱性の観点から、融点の下限は、90℃以上であることが好ましく、110℃以上であることがより好ましく、130℃以上であることがさらに好ましい。90℃未満になると、EOG滅菌条件によっては樹脂が変形したり、ヒートシール部の剥離強度が弱くなるため好ましくない。一方、融点の上限は特に限定されないが、焼却処分の観点から400℃以下であることが好ましい。 From the viewpoint of heat resistance in the sterilization treatment, the lower limit of the melting point is preferably 90 ° C. or higher, more preferably 110 ° C. or higher, as for the material used for the resin film and the gas permeable part and the cover. More preferably, it is 130 ° C. or higher. If it is less than 90 ° C., the resin may be deformed depending on the EOG sterilization conditions, or the peel strength of the heat seal portion will be weak, which is not preferable. On the other hand, although the upper limit of melting | fusing point is not specifically limited, It is preferable that it is 400 degrees C or less from a viewpoint of incineration disposal.
 滅菌袋は、開口部から繊維製品を挿入し、開口部をヒートシールした繊維製品パッケージ体をガス滅菌して使用する。本発明の滅菌袋を用いれば、ガス滅菌後、無菌状態を保つことができる。なお、ここで言う繊維製品は、例えば滅菌服が好適な事例として挙げられるが、滅菌袋に挿入することができる繊維製品であれば特に限定されるものではない。 The sterilization bag is used by inserting a fiber product through the opening and gas-sterilizing the fiber product package with the opening heat-sealed. If the sterilization bag of the present invention is used, aseptic conditions can be maintained after gas sterilization. In addition, although the textile product said here is mentioned as a suitable example, for example, sterilization clothes, if it is a textile product which can be inserted in a sterilization bag, it will not specifically limit.
 本発明の滅菌袋には、図1に示した様なノッチ7等の開封開始部を設けてもよい。ノッチ7の位置は、図1に例示したとおり、開封時にガス透過部の破壊による紙粉・糸くずの発生を避けるため、ガス透過部とは逆の端部付近に設けることが好ましい。 The sterilization bag of the present invention may be provided with an opening start portion such as a notch 7 as shown in FIG. As illustrated in FIG. 1, the position of the notch 7 is preferably provided in the vicinity of the end opposite to the gas permeable portion in order to avoid generation of paper dust and waste thread due to the destruction of the gas permeable portion at the time of opening.
  (滅菌処理済み繊維製品パッケージ体の製造方法)
 続いて、滅菌袋に封入された繊維製品パッケージ体を滅菌し滅菌処理済み繊維製品パッケージ体の製造方法を説明する。製造工程は少なくとも次の工程を含む。滅菌袋に繊維製品を収納する工程Aと、前記開口部を密閉し、繊維製品パッケージを得る工程Bと、複数の繊維製品パッケージを滅菌用ケースに収納する工程Cと、複数の前記繊維製品パッケージが収納された前記滅菌用ケースを殺菌ガスに暴露させる工程Dである。そして、前記工程Cは、前記2つの辺の少なくとも一方の辺が前記ガス透過部に対し略鉛直方向の上方に位置するように複数の繊維製品パッケージ体を滅菌用ケースに収納する工程である。
(Manufacturing method of sterilized fiber product package)
Next, a method for producing a sterilized fiber product package by sterilizing the fiber product package enclosed in a sterilization bag will be described. The manufacturing process includes at least the following steps. A process A for storing a textile product in a sterilization bag, a process B for sealing the opening to obtain a textile product package, a process C for storing a plurality of textile product packages in a sterilization case, and a plurality of the textile product packages Is a step D of exposing the sterilization case in which is stored to a sterilizing gas. The step C is a step of storing a plurality of fiber product package bodies in a sterilization case so that at least one of the two sides is positioned substantially vertically above the gas permeable portion.
 ここで、前記ガス透過部は、前記滅菌袋の少なくとも一方の面(面A)に配置されており、前記ガス透過部の重心は、前記面Aの対向する2つの辺の間の距離を1としたときに、前記2つの辺の一方の辺から0.8以上0.98以下の位置、すなわち、面Aのいずれかの辺から0.02から0.2までの範囲に存在し、前記ガス透過部の面積の前記面Aの面積に対する割合((ガス透過部の面積/面Aの面積)×100)が4%以上25%以下である。前記カバーは、前記ガス透過部の全面を覆うことが可能で、前記滅菌袋は、前記ガス透過部の全面が前記カバーで覆われた状態にて、前記滅菌袋の内部と外部とが通気可能である。さらに、前記工程Cは、前記ガス透過部が前記2つの辺の一方の辺に対し略鉛直方向の上方に位置するように複数の繊維製品パッケージを滅菌用ケースに収納する工程である、滅菌処理済み繊維製品パッケージ体の製造方法である。 Here, the gas permeable portion is disposed on at least one surface (surface A) of the sterilization bag, and the center of gravity of the gas permeable portion is a distance between two opposing sides of the surface A being 1 When present, a position from 0.8 to 0.98 from one of the two sides, that is, a range from 0.02 to 0.2 from any side of the surface A, The ratio of the area of the gas permeable portion to the area of the surface A ((area of the gas permeable portion / area of the surface A) × 100) is 4% or more and 25% or less. The cover can cover the entire surface of the gas permeable portion, and the sterilization bag can ventilate the inside and the outside of the sterilization bag with the entire surface of the gas permeable portion covered with the cover. It is. Further, the step C is a step of storing a plurality of fiber product packages in a sterilization case so that the gas permeable portion is positioned substantially vertically above one of the two sides. It is a manufacturing method of a used textile product package.
 以下、本発明の滅菌袋の実施例を説明するが、本発明の滅菌袋の形態は実施例で説明する滅菌袋の具体的形態例には限定されない。なお、実施例および比較例にて用いた評価は次の方法で実施した。
<評価・測定方法>
 (1)ガス透過部の透気度
 JIS P8117:2009 ガーレー試験法(試験機B形)に基づき測定する。6枚の試験片について測定し、得られた測定値の平均を試験結果とする。
Examples of the sterilization bag of the present invention will be described below, but the form of the sterilization bag of the present invention is not limited to the specific form of the sterilization bag described in the examples. In addition, evaluation used in the Example and the comparative example was implemented with the following method.
<Evaluation and measurement method>
(1) Air permeability of gas permeable part Measured based on JIS P8117: 2009 Gurley test method (tester B type). Measurement is performed on six test pieces, and the average of the obtained measurement values is taken as the test result.
 (2)エタノール拭き取り洗浄
 70%エタノール水溶液100質量部にローダミンB(染料)を2質量部溶解して試験液を作製する。この試験液を滅菌袋の一方の面の全面に、この一方の面から30cmの距離から試験液の付着量が0.3~0.5mg/cmになるようにスプレーし、キムワイプ(登録商標)で試験液滴をカバーがめくれないように拭き取る。拭き取り直後の状態を目視で確認し、滅菌袋の一方の面の全面のいずれかの場所に染料の着色が認められなかったものを○、着色が認められたものを×とする。滅菌袋のもう一方の面についても同様に試験を行う。
(2) Ethanol wiping and washing 2 parts by mass of rhodamine B (dye) is dissolved in 100 parts by mass of a 70% aqueous ethanol solution to prepare a test solution. This test solution is sprayed on the entire surface of one side of the sterilization bag from a distance of 30 cm from this one side so that the amount of the test solution adhered is 0.3 to 0.5 mg / cm 2. ) Wipe off the test droplets so that the cover does not turn over. The state immediately after wiping is visually confirmed, and the case where no coloring of the dye is observed at any place on one side of the sterilization bag is indicated by ○, and the case where the coloring is recognized is indicated by ×. Do the same for the other side of the sterilization bag.
 (3)滅菌性能
(評価用サンプルの準備)
 図5に示すとおり、繊維製品41(LIVMOA(登録商標) 型番A-01-001、Mサイズ、東レ製)とバイオロジカルインジケーター55を滅菌袋に入れ、開口部を電動シーラー(富士インパルス株式会社製Fi-600Y)にて幅10mmのヒートシールを施して、評価用繊維製品パッケージ体50を得る。次に、図6の一例では、評価用繊維製品パッケージ体50のガス透過部が、上になるよう向きを選択する。これにより、滅菌用ケース42に梱包した際に、ガス透過部の重心が上方になる。評価用繊維製品パッケージ体を滅菌用ケース42に12個入れ梱包し、評価用サンプルを準備する。滅菌用ケースは、段ボール(横30cm×奥行き48cm×高さ40cm、材質5mm A/F)を使用する。
(3) Sterilization performance (preparation of sample for evaluation)
As shown in FIG. 5, the fiber product 41 (LIVMOA (registered trademark) model number A-01-001, M size, manufactured by Toray) and the biological indicator 55 are placed in a sterilized bag, and the opening is electrically sealed (manufactured by Fuji Impulse Co., Ltd.). Fi-600Y) is subjected to heat sealing with a width of 10 mm to obtain the evaluation fiber product package 50. Next, in the example of FIG. 6, the direction is selected so that the gas permeation portion of the evaluation fiber product package 50 faces upward. Thereby, when packing in the case 42 for sterilization, the gravity center of a gas permeation | transmission part becomes upward. Twelve evaluation fiber product packages are put in a sterilization case 42 and packed to prepare an evaluation sample. The sterilization case uses cardboard (width 30 cm × depth 48 cm × height 40 cm, material 5 mm A / F).
 (EOG滅菌処理)
 以下に示す条件でEOG滅菌を行い、滅菌性能確認1(残留EO測定)と滅菌性能確認2(バイオロジカルインジケーターの合格率)を行う。また、以後EOG滅菌した後の滅菌処理済み繊維製品パッケージ体を被滅菌物と呼ぶことがある。
(EOG sterilization treatment)
EOG sterilization is performed under the following conditions, and sterilization performance confirmation 1 (residual EO measurement) and sterilization performance confirmation 2 (acceptance rate of biological indicator) are performed. In addition, the fiber product package body that has been sterilized after the EOG sterilization is sometimes referred to as an article to be sterilized.
 [EOG滅菌条件]
・滅菌装置:ステリテック製(型式:GMS-090-SW-AJ) 9m
・使用ガス:カポックス-20(EOG20%)
・温度40℃、相対湿度50%Rh
・加温時間:5分
・作用圧力:-0.085MPa~0.093MPa
・初期減圧時の所用時間:7分
・初期減圧時の保持時間:10分
・滅菌ガス導入時間:12分
・滅菌作用時間:3時間
・排ガス所用時間:25分
・エアレーション(分真空、分常圧):5回
・空気置換減圧時間(分真空):10分
・空気置換導入時間(分常圧):5分  。
[EOG sterilization conditions]
・ Sterilizer: Made by Steritec (Model: GMS-090-SW-AJ) 9m 3
・ Used gas: Kapox-20 (EOG 20%)
・ Temperature 40 ℃, relative humidity 50% Rh
・ Heating time: 5 minutes ・ Working pressure: -0.085 MPa to 0.093 MPa
・ Time required for initial decompression: 7 minutes ・ Holding time for initial decompression: 10 minutes ・ Sterilization gas introduction time: 12 minutes ・ Sterilization time: 3 hours ・ Time for exhaust gas station: 25 minutes ・ Aeration (minute vacuum, normal) Pressure): 5 times, Air replacement decompression time (minute vacuum): 10 minutes, Air replacement introduction time (minute normal pressure): 5 minutes.
 [EOG残留ガスの排出条件]
 40℃、50%Rhのエアレーションルームに、図6に示す、滅菌用ケース60を保管する。滅菌用ケース60は、滅菌処理後の複数の繊維製品パッケージ体を収納した状態のままである。保管時間は、24時間または120時間とする。
[EOG residual gas discharge conditions]
A sterilization case 60 shown in FIG. 6 is stored in an aeration room at 40 ° C. and 50% Rh. The sterilization case 60 remains in a state in which a plurality of fiber product package bodies after sterilization processing are accommodated. The storage time is 24 hours or 120 hours.
 (滅菌性能確認1[残留EO測定])
 JIS T0993-7:2012に基づき測定する。被滅菌物は、エアレーションルーム保管後24時間経過時と120時間経過時にそれぞれ5個を回収する。回収した被滅菌物は30分以内に開封し、繊維製品生地を1cm角に細切したもの200gを試料とし、3000mlのメジウム瓶に入れる。次に、純水1900mlを加えた後、メジウム瓶を密封し、密封後のメジウム瓶を37℃で24時間静置する。これに内部標準液(プロピレンオキサイド)を加えたものを試験溶液とし、ガスクロマトグラフによりEO濃度を測定し、各N=5の平均値を24時間後と120時間後の残留EO濃度とする。測定条件は下記の通りである。
(Sterilization performance confirmation 1 [residual EO measurement])
Measured in accordance with JIS T0993-7: 2012. Five items to be sterilized are collected at 24 hours and 120 hours after storage in the aeration room. The collected material to be sterilized is opened within 30 minutes, and 200 g of a 1-cm square fiber product dough is used as a sample and placed in a 3000 ml medium bottle. Next, after adding 1900 ml of pure water, the medium bottle is sealed, and the sealed medium bottle is allowed to stand at 37 ° C. for 24 hours. A solution obtained by adding an internal standard solution (propylene oxide) to this is used as a test solution, and the EO concentration is measured by gas chromatography, and the average value of each N = 5 is set as the residual EO concentration after 24 hours and 120 hours. The measurement conditions are as follows.
 <分析条件>
 ガスクロマトグラフ:GC-17A Shimadzu
 検出器:FID
 カラム:InertCAP FFAP 60m×0.32mm、 df=0.25μm
 カラム温度:50℃(4分保持)、130℃(at20℃/分)、210℃(at8℃/分)、8分保持
 注入温度:210℃
 キャリヤーガス:He138kPa、水素50kPa、空気50kPa
 (滅菌性能確認2[バイオロジカルインジケーターの合格率])
 バイオロジカルインジケーターは、3M(登録商標) Attest(登録商標) 1264-S Bacillus atorophaeus ATCC:9372を使用する。被滅菌物からバイオロジカルインジケーターを回収し、回収したバイオロジカルインジケーターを35℃で48時間静置する。評価は、48時間静置後のバイオロジカルインジケーターを目視し、液体培地が変色せずに青色のままのものを合格、黄色く変色したものや混濁があるものを不合格と判定し、合格率を式1で算出し、試験結果とする。
バイオロジカルインジケーターの合格率(%)=合格数÷12×100  式1
 (4)ヒートシール部の剥離強度
 (a)樹脂フィルムと樹脂フィルム間のヒートシール部の剥離強度
 滅菌袋から樹脂フィルム(正面)と樹脂フィルム間(背面)のヒートシール部の一部を有する試験片(幅12mm×長さ100mm)を各2枚用意し、JIS Z1707:1997の7.5項に基づき測定する。測定条件:つかみ具間隔50mm、引張速度300mm/分にて剥離強度を測定し、平均した数値を試験結果とする。
<Analysis conditions>
Gas chromatograph: GC-17A Shimadzu
Detector: FID
Column: InertCAP FFAP 60 m × 0.32 mm, df = 0.25 μm
Column temperature: 50 ° C. (4 min hold), 130 ° C. (at 20 ° C./min), 210 ° C. (at 8 ° C./min), 8 min hold Injection temperature: 210 ° C.
Carrier gas: He138 kPa, hydrogen 50 kPa, air 50 kPa
(Sterilization performance confirmation 2 [Acceptance rate of biological indicator])
Biological indicator is 3M (registered trademark) Attest (registered trademark)   1264-S Bacillus atrophaeus ATCC: 9372 is used. A biological indicator is collected from the sterilized material, and the collected biological indicator is allowed to stand at 35 ° C. for 48 hours. Evaluation was made by visually checking the biological indicator after standing for 48 hours, judging that the liquid medium remained blue without any discoloration, and the one with yellow color or turbidity was judged as rejected. Calculated by Equation 1 and used as a test result.
Biological indicator pass rate (%) = passed number ÷ 12 × 100 Formula 1
(4) Peel strength of heat seal part (a) Peel strength of heat seal part between resin film and test with part of heat seal part between resin film (front) and resin film (back) from sterilization bag Two pieces (12 mm in width × 100 mm in length) are prepared and measured based on Section 7.5 of JIS Z1707: 1997. Measurement conditions: The peel strength is measured at a gripping tool spacing of 50 mm and a tensile speed of 300 mm / min, and the average value is taken as the test result.
 (b)ガス透過部と樹脂フィルム間のヒートシール部の剥離強度
 ガス透過部と樹脂フィルム間のヒートシール部から試験片(幅12mm×長さ100mm)を各2枚用意し、JIS Z1707:1997の7.5項に基づき測定する。測定条件:つかみ具間隔50mm、引張速度300mm/分にて剥離強度を測定し、平均した数値を試験結果とする。
(B) Peel strength of the heat seal part between the gas permeable part and the resin film Two test pieces (width 12 mm × length 100 mm) were prepared from the heat seal part between the gas permeable part and the resin film, and JIS Z1707: 1997. Measured based on Section 7.5. Measurement conditions: The peel strength is measured at a gripping tool spacing of 50 mm and a tensile speed of 300 mm / min, and the average value is taken as the test result.
 (c)ガス透過部とカバー間のヒートシール部の剥離強度
 ガス透過部とカバー間のヒートシール部から試験片(幅12mm×長さ100mm)を各2枚用意し、JIS Z1707:1997の7.5項に基づき測定する。測定条件:つかみ具間隔50mm、引張速度300mm/分にて剥離強度を測定し、平均した数値を試験結果とする。
(C) Peel strength of the heat seal part between the gas permeable part and the cover Two test pieces (width 12 mm × length 100 mm) were prepared from the heat seal part between the gas permeable part and the cover, and JIS Z1707: 1997 7 Measured according to Section 5 Measurement conditions: The peel strength is measured at a gripping tool spacing of 50 mm and a tensile speed of 300 mm / min, and the average value is taken as the test result.
 実施例、比較例で用いたガス透過部および樹脂フィルムは、以下を使用した。 The gas permeation part and the resin film used in Examples and Comparative Examples were as follows.
 <ガス透過部>
 ガス透過部を形成する滅菌紙として、タイベック(登録商標)1073B(旭・デュポンフラッシュスパンプロダクツ製)を使用した。物性は、目付75g/m2、厚み190μm、バクテリアバリア性LRV=5(ASTM F1608:2000)、ガーレー透気度22秒/100mlであった。
<Gas transmission part>
Tyvek (registered trademark) 1073B (manufactured by Asahi DuPont Flash Span Products) was used as sterilized paper forming the gas permeation part. The physical properties were a basis weight of 75 g / m 2 , a thickness of 190 μm, a bacterial barrier property LRV = 5 (ASTM F1608: 2000), and a Gurley air permeability of 22 seconds / 100 ml.
 <樹脂フィルム>
 滅菌袋のガス透過部を除いた部分、及びカバーを形成する樹脂フィルムとして、厚み12μmの二軸延伸ポリエチレンテレフタレートフィルムと、ヒートシール層となる厚み60μmの低密度ポリエチレンフィルムを準備し、接着剤として、ウレタン樹脂系の2液混合型ラミネート接着剤(塗布量3g/m)を介して積層したものを使用した。樹脂フィルムの物性は、厚み75μm、引張強度(JIS K 7127:1999の6.1.1項)はMD方向が60N/15mm、CD方向が55N/15mm、引裂強度(JIS K 7128-2:1998のエレメンドルフ引裂法)はMD方向が0.24N、CD方向が0.23Nであった。
<Resin film>
Prepare a 12μm thick biaxially stretched polyethylene terephthalate film and a 60μm thick low-density polyethylene film as a heat seal layer as a resin film that forms the cover and the gas permeable portion of the sterilization bag, and as an adhesive In addition, a laminate laminated with a urethane resin-based two-component mixed laminate adhesive (application amount 3 g / m 2 ) was used. The physical properties of the resin film are as follows: thickness 75 μm, tensile strength (JIS K 7127: 1999, 6.1.1): MD direction 60 N / 15 mm, CD direction 55 N / 15 mm, tear strength (JIS K 7128-2: 1998) Elmendorf tearing method) was 0.24N in the MD direction and 0.23N in the CD direction.
 [実施例1]
 (滅菌袋の作製)
 図3、図7を用いて説明する。まず、図7に示すカバーのない滅菌袋65を作製した。このカバーのない滅菌袋65は、ヒートシール部4とガス透過部2を有し、ガス透過部2は開口部5があるほうの端部側に配した。次いで、図3に示すとおり、カバー6をヒートシール部4a、4bでヒートシールする事により、カバーを3辺固定した滅菌袋30を得た。なお、ヒートシールは、電動シーラー(富士インパルス株式会社製Fi-600Y、片側加熱式、ヒートシール幅10mm)を用いた。電動シーラーは、カバーの面の上から加熱することで、カバーとガス透過部をヒートシールした(開口部5はヒートシールされていない)。
[Example 1]
(Production of sterile bags)
This will be described with reference to FIGS. First, a sterile bag 65 without a cover shown in FIG. 7 was produced. The sterilization bag 65 without the cover has the heat seal part 4 and the gas permeation part 2, and the gas permeation part 2 is disposed on the end side where the opening 5 is present. Next, as shown in FIG. 3, the cover 6 was heat sealed with the heat seal portions 4 a and 4 b to obtain a sterilization bag 30 with the cover fixed on three sides. For the heat seal, an electric sealer (Fi-600Y manufactured by Fuji Impulse Co., Ltd., one-side heating type, heat seal width 10 mm) was used. The electric sealer heat-sealed the cover and the gas permeable part by heating from above the surface of the cover (opening 5 is not heat-sealed).
 作製した滅菌袋は、L=375mm、W=300mm、l=20mm、w=280mm、cy=20mm、cx=280mm、袋片面に占めるガス透過部の面積割合は5%、ガス透過部:カバーの面積比は1:1であった。次に、前述の評価・測定方法(4)滅菌性能の評価用サンプルの準備に基づき、評価用サンプルを準備した。 The produced sterilization bag is L = 375 mm, W = 300 mm, l = 20 mm, w = 280 mm, cy = 20 mm, cx = 280 mm, the area ratio of the gas permeable part occupying one side of the bag is 5%, and the gas permeable part: cover The area ratio was 1: 1. Next, an evaluation sample was prepared based on the above-described evaluation / measurement method (4) preparation of a sample for evaluation of sterilization performance.
 ガス透過部とカバー、ガス透過部と樹脂フィルムのヒートシール部の剥離強度は、10N/12mm、樹脂フィルム同士のヒートシール部が35N/12mmであった。また、開口部5をシールした箇所(背面樹脂フィルム/ガス透過部間)のヒートシールの剥離強度は10N/12mmであった。 The peel strength of the gas permeable part and the cover, the gas permeable part and the heat seal part of the resin film was 10 N / 12 mm, and the heat seal part between the resin films was 35 N / 12 mm. Further, the peel strength of the heat seal at the location where the opening 5 was sealed (between the back surface resin film and the gas permeable portion) was 10 N / 12 mm.
 得られた滅菌袋を用い、上述の各種評価した結果を表2に示す。滅菌袋は、エタノール拭き取り洗浄に合格し、滅菌性能も満足する結果が得られた。 Table 2 shows the results of the various evaluations described above using the obtained sterilization bag. The sterilization bag passed the ethanol wiping and washing, and the results satisfying the sterilization performance were obtained.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
 なお、表1中の「重心の位置」とは、滅菌袋の面Aの4つの辺で構成される2組の対向する2つの辺のうちガス透過部の重心から近い方の辺とガス透過部の重心との距離、すなわち、前記面Aの対向する2つの辺の間の距離を1としたときに、面Aのいずれかの辺からの最短距離に基づくものである。 The “position of the center of gravity” in Table 1 refers to the side closer to the center of gravity of the gas permeation part and the gas permeation of two sets of two opposite sides constituted by four sides of the surface A of the sterilization bag. This is based on the shortest distance from any side of the surface A, where 1 is the distance from the center of gravity of the part, that is, the distance between two opposing sides of the surface A.
 [実施例2]
 l=16mm、cy=16mm、袋片面に占めるガス透過部の面積割合を4%に変更した以外は実施例1と同様にして、目的とするカバーを3辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であった。
[Example 2]
A sterilized bag having a target cover fixed on three sides was obtained in the same manner as in Example 1 except that l = 16 mm, cy = 16 mm, and the area ratio of the gas permeable portion occupying one side of the bag was changed to 4%. The peel strength of each seal part was equivalent to that in Example 1.
 評価結果は、実施例1と同じく、エタノール拭き取り洗浄に合格し、滅菌性能も満足する結果が得られた。 The evaluation results were the same as in Example 1 and passed the ethanol wiping cleaning, and the results of satisfying the sterilization performance were obtained.
 [実施例3]
 l=40mm、cy=40mm、袋片面に占めるガス透過部の面積割合を10%に変更した以外は実施例1と同様にして、目的とするカバーを3辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であった。
[Example 3]
A sterilized bag having a target cover fixed on three sides was obtained in the same manner as in Example 1 except that l = 40 mm, cy = 40 mm, and the area ratio of the gas permeation portion occupying one side of the bag was changed to 10%. The peel strength of each seal part was equivalent to that in Example 1.
 評価結果は、エタノール拭き取り洗浄に合格し、滅菌性能も満足する結果が得られた。残留EO(滅菌性能)は、実施例1よりもガス透過部の面積割合を4%から10%と大きくしたことで、ガスの排出がしやすくなったと推定され、残留EO濃度が実施例1よりも低かった。 The evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained. Residual EO (sterilization performance) was estimated to be easier to discharge gas by increasing the area ratio of the gas permeable part from 4% to 10% than in Example 1, and the residual EO concentration was higher than in Example 1. Was also low.
 [実施例4]
 l=100mm、cy=100mm、袋片面に占めるガス透過部の面積割合を25%に変更した以外は実施例1と同様にして、目的とするカバーを3辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であった。
[Example 4]
A sterilized bag having a target cover fixed on three sides was obtained in the same manner as in Example 1 except that l = 100 mm, cy = 100 mm, and the area ratio of the gas permeable portion occupying one side of the bag was changed to 25%. The peel strength of each seal part was equivalent to that in Example 1.
 評価結果は、エタノール拭き取り洗浄に合格し、滅菌性能も満足する結果が得られた。残留EO(滅菌性能)は、実施例3よりもガス透過部の面積割合を10%から25%と大きくしたことで、ガスの排出がしやすくなったと推定され、残留EO濃度が実施例3よりも低かった。 The evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained. Residual EO (sterilization performance) was estimated to be easier to discharge gas by increasing the area ratio of the gas permeable part from 10% to 25% than in Example 3, and the residual EO concentration was higher than in Example 3. Was also low.
 [実施例5]
 l=112mm、cy=112mm、袋片面に占めるガス透過部の面積割合を28%に変更した以外は実施例1と同様にして、目的とするカバーを3辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であった。
[Example 5]
A sterilized bag having a target cover fixed on three sides was obtained in the same manner as in Example 1 except that l = 112 mm, cy = 112 mm, and the area ratio of the gas permeable portion occupying one side of the bag was changed to 28%. The peel strength of each seal part was equivalent to that in Example 1.
 評価結果は、エタノール拭き取り洗浄に合格し、滅菌性能も満足する結果が得られた。残留EO(滅菌性能)は、実施例4よりもガス透過部の面積割合を25%から28%と大きくしたが、残留EO濃度は実施例4と大差がなかった。 The evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained. In the residual EO (sterilization performance), the area ratio of the gas permeable part was increased from 25% to 28% as compared with Example 4, but the residual EO concentration was not significantly different from that in Example 4.
 [実施例6]
 l=124mm、cy=124mm、袋片面に占めるガス透過部の面積割合を31%に変更した以外は実施例1と同様にして、目的とするカバーを3辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であった。
[Example 6]
A sterilized bag having a target cover fixed on three sides was obtained in the same manner as in Example 1 except that l = 124 mm, cy = 124 mm, and the area ratio of the gas permeable portion occupying one side of the bag was changed to 31%. The peel strength of each seal part was equivalent to that in Example 1.
 評価結果は、エタノール拭き取り洗浄に合格し、滅菌性能も満足する結果が得られた。残留EO(滅菌性能)は、実施例4よりもガス透過部の面積割合を25%から31%と大きくしたが、残留EO濃度は実施例4と大差がなかった。 The evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained. In the residual EO (sterilization performance), the area ratio of the gas permeable portion was increased from 25% to 31% as compared with Example 4, but the residual EO concentration was not significantly different from that in Example 4.
 実施例4~6の結果より、面積割合を25%以上増やしてもコストアップになるだけで、発明の効果を実現するガス透過部の面積割合上限は25%で十分である事が示された。 From the results of Examples 4 to 6, it was shown that even if the area ratio was increased by 25% or more, only the cost was increased, and the upper limit of the area ratio of the gas permeation part realizing the effect of the invention was 25%. .
 [実施例7]
 カバーを1辺(ヒートシール部4a)のみヒートシールした以外は実施例1と同様にして、目的とするカバーを1辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であったが、滅菌性能評価のため滅菌用ケースに繊維製品パッケージ体を収納しようとすると、1辺固定のためカバーがめくれてガス透過部が露出しやすかった。評価は、繊維製品パッケージ体のカバーがめくれないように滅菌袋を収納して実施した。評価結果は、エタノール拭き取り洗浄に合格し、滅菌性能も満足する結果が得られた。
[Example 7]
A sterilization bag having a target cover fixed on one side was obtained in the same manner as in Example 1 except that only one side (heat seal portion 4a) of the cover was heat sealed. The peel strength of each seal part was the same as in Example 1. However, when trying to store the fiber product package in a sterilization case for sterilization performance evaluation, the cover was turned over to fix one side and the gas permeable part was exposed. It was easy. The evaluation was carried out by storing a sterilization bag so that the cover of the textile product package was not turned over. As a result of the evaluation, a result that passed the ethanol wiping cleaning and satisfied the sterilization performance was obtained.
 [実施例8]
 cy=22mm、ガス透過部:カバーの面積比は1:1.1に変更した以外は実施例1と同様にして、目的とするカバーを3辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であった。
[Example 8]
A sterilized bag having a target cover fixed on three sides was obtained in the same manner as in Example 1 except that the area ratio of cy = 22 mm and the gas permeation part: cover was changed to 1: 1.1. The peel strength of each seal part was equivalent to that in Example 1.
 評価結果は、エタノール拭き取り洗浄に合格し、滅菌性能も満足する結果が得られた。 The evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained.
 [実施例9]
 cy=30mm、ガス透過部:カバーの面積比は1:1.5に変更した以外は実施例1と同様にして、目的とするカバーを3辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であった。
[Example 9]
A sterilized bag having a target cover fixed on three sides was obtained in the same manner as in Example 1 except that the area ratio of cy = 30 mm and gas permeation portion: cover was changed to 1: 1.5. The peel strength of each seal part was equivalent to that in Example 1.
 評価結果は、エタノール拭き取り洗浄に合格し、滅菌性能も満足する結果が得られた。 The evaluation result passed the ethanol wiping cleaning, and the result that satisfied the sterilization performance was obtained.
 [実施例10]
 cy=34mm、ガス透過部:カバーの面積比は1:1.7に変更した以外は実施例1と同様にして、目的とするカバーを3辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であった。得られた滅菌袋について評価した結果を表2に示す。滅菌袋は、エタノール拭き取り洗浄に合格した。バイオロジカルインジケーターの合格率(滅菌性能)は、92%であったが、滅菌時間を調整することでバイオロジカルインジケーターの合格率を100%にする事ができ、実用上問題なかった。
[Example 10]
A sterilization bag having a target cover fixed on three sides was obtained in the same manner as in Example 1 except that the area ratio of cy = 34 mm and gas permeation part: cover was changed to 1: 1.7. The peel strength of each seal part was equivalent to that in Example 1. Table 2 shows the results of evaluation of the obtained sterilized bag. The sterilized bag passed the ethanol wipe cleaning. The pass rate (sterilization performance) of the biological indicator was 92%, but the pass rate of the biological indicator could be made 100% by adjusting the sterilization time, and there was no practical problem.
 [比較例1]
 図7に示すカバーのない滅菌袋を作成した。各シール部の剥離強度は実施例1と同等であった。得られた滅菌袋を用い、各種評価した結果、滅菌性能は有しているが、エタノール拭き取り洗浄が不合格であった。これらのことから、エタノール拭き取り洗浄適正がないため、滅菌袋としては適さなかった。
[Comparative Example 1]
A sterile bag without a cover as shown in FIG. 7 was prepared. The peel strength of each seal part was equivalent to that in Example 1. As a result of various evaluations using the obtained sterilization bag, sterilization performance was obtained, but ethanol wiping and washing was unacceptable. From these things, since there was no ethanol wiping and cleaning appropriateness, it was not suitable as a sterilization bag.
 [比較例2]
 cy=19mm、ガス透過部:カバーの面積比は1:0.95に変更した以外は実施例1と同様にして、カバーを3辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であった。
[Comparative Example 2]
A sterilized bag having a cover fixed on three sides was obtained in the same manner as in Example 1 except that the area ratio of cy = 19 mm and gas permeation portion: cover was changed to 1: 0.95. The peel strength of each seal part was equivalent to that in Example 1.
 得られた滅菌袋を用い、各種評価した結果、滅菌性能は有しているが、エタノール拭き取り洗浄が不合格であった。これらのことから、エタノール拭き取り洗浄適正がないため、滅菌袋としては適さなかった。 As a result of various evaluations using the obtained sterilization bag, sterilization performance was obtained, but ethanol wiping and cleaning was unacceptable. From these things, since there was no ethanol wiping and cleaning appropriateness, it was not suitable as a sterilization bag.
 [比較例3]
 cy=16mm、ガス透過部:カバーの面積比は1:0.80に変更した以外は実施例1と同様にして、カバーを3辺固定した滅菌袋を得た。各シール部の剥離強度は実施例1と同等であった。
[Comparative Example 3]
A sterilized bag having a cover fixed on three sides was obtained in the same manner as in Example 1 except that the area ratio of cy = 16 mm and gas permeation part: cover was changed to 1: 0.80. The peel strength of each seal part was equivalent to that in Example 1.
 得られた滅菌袋を用い、各種評価した結果、滅菌性能は有しているが、エタノール拭き取り洗浄が不合格であった。これらのことから、エタノール拭き取り洗浄適正がないため、滅菌袋としては適さなかった。 As a result of various evaluations using the obtained sterilization bag, sterilization performance was obtained, but ethanol wiping and cleaning was unacceptable. From these things, since there was no ethanol wiping and cleaning appropriateness, it was not suitable as a sterilization bag.
 [比較例4]
 (滅菌袋の作製)
 図8、図9を用いて説明する。樹脂フィルム71とガス透過部2をセンタシール製袋機(トタニ技研工業社製FD-35V)にて図8に示すガス透過部を中央部に配置し、カバーを2辺固定した滅菌袋を作製した。次に、繊維製品(LIVMOA(登録商標) 型番A-01-001、Mサイズ、東レ製)とバイオロジカルインジケーターを滅菌袋に入れ、開口部5を電動シーラー(富士インパルス株式会社製Fi-600Y)にて幅10mmのヒートシールを施して、図9に示すカバーを3辺固定した包装された繊維製品を得た。
[Comparative Example 4]
(Production of sterile bags)
This will be described with reference to FIGS. The resin film 71 and the gas permeation part 2 are placed in the center part with the center seal bag making machine (FD-35V manufactured by Totani Giken Kogyo Co., Ltd.), and a sterilization bag is produced with the cover fixed at two sides. did. Next, the fiber product (LIVMOA (registered trademark) model number A-01-001, M size, manufactured by Toray) and biological indicator are put in a sterilization bag, and the opening 5 is electrically sealed (Fi-600Y manufactured by Fuji Impulse Co., Ltd.). Was subjected to heat sealing with a width of 10 mm to obtain a packaged fiber product in which the cover shown in FIG. 9 was fixed on three sides.
 滅菌袋は、L=375mm、W=300mm、l=355mm、w=16mm、cy=355mm、cx=15mm、袋片面に占めるガス透過部の面積割合は4%、ガス透過部:カバーの面積比は1:1であり、実施例1と同様のガス透過部面積割合、ガス透過部:カバーの面積比であるが、袋の中央部にガス透過部が配設された例である。ガス透過部の重心は長辺から0.5の距離であった。ヒートシール部の剥離強度は、樹脂フィルム71とガス透過部2のヒートシール部が10N/12mm、樹脂フィルム71同士のヒートシール部が35N/12mmであった。 The sterilization bag is L = 375 mm, W = 300 mm, l = 355 mm, w = 16 mm, cy = 355 mm, cx = 15 mm, the area ratio of the gas permeation part on one side of the bag is 4%, and the gas permeation part: cover area ratio Is 1: 1, which is the same gas permeation part area ratio and gas permeation part: cover area ratio as in Example 1, but is an example in which a gas permeation part is disposed at the center of the bag. The center of gravity of the gas permeable part was a distance of 0.5 from the long side. The peel strength of the heat seal part was 10 N / 12 mm for the heat seal part between the resin film 71 and the gas permeable part 2, and 35 N / 12 mm for the heat seal part between the resin films 71.
 評価結果は、エタノール拭き取り洗浄に合格した。バイオロジカルインジケーターの合格率(滅菌性能)は、66%であり、ガス透過部が隣接する袋や内包する繊維製品と接触する事で、滅菌袋へのEOGの流入・排出がされにくくなったと推定され、滅菌性能に劣り、実用性に欠けるものであった。 The evaluation result passed the ethanol wiping cleaning. The pass rate (sterilization performance) of the biological indicator is 66%, and it is estimated that the EOG flow into and out of the sterilization bag is less likely to occur due to the gas permeation part coming into contact with the adjacent bag and the fiber product included. Therefore, the sterilization performance was inferior and the practicality was lacking.
 表2の結果から、実施例1~10の滅菌袋が本発明の課題を解決できている事が分かる。特に、本発明者の鋭意努力により、カバーをガス透過部全面に配置し、かつその位置とサイズを設計することで、ガスの流出入を妨げず高い滅菌性能を保持し、使用時のエタノール洗浄を可能としている。その結果、実用性に優れるガス滅菌に適した滅菌袋を提供される。 From the results in Table 2, it can be seen that the sterilization bags of Examples 1 to 10 can solve the problems of the present invention. In particular, the inventor's diligent efforts put the cover over the entire surface of the gas permeable part, and by designing the position and size of the cover, it maintains high sterilization performance without hindering gas inflow and outflow. Is possible. As a result, a sterilization bag suitable for gas sterilization with excellent practicality is provided.
 本発明の滅菌袋は、十分なガス滅菌性能を有し、エタノール拭き取り洗浄に適し、ガス透過部の物理的強度を高めて取り扱い時に損傷を起こす事が無い滅菌袋として使用でき、細胞加工施設、臨床検査施設、医薬品・化粧品・医療機器製造施設等のクリーンルームに搬入して使用する滅菌袋として好適である。 The sterilization bag of the present invention has sufficient gas sterilization performance, is suitable for ethanol wiping and washing, can be used as a sterilization bag that does not cause damage during handling by increasing the physical strength of the gas permeable part, It is suitable as a sterilization bag for use in a clean room such as a clinical laboratory or a pharmaceutical / cosmetic / medical equipment manufacturing facility.
1   滅菌袋(カバーの固定は1辺の状態)
2   ガス透過部
3a  樹脂フィルム(正面)
3b  樹脂フィルム(背面)
4   ヒートシール部
4a  ヒートシール部
4b  ヒートシール部
5   開口部
6   カバー
7   ノッチ(開封開始部)
10  滅菌袋の背面
30  カバーを3辺につけた状態の滅菌袋の正面
39  滅菌袋30のカバーを取り外した状態の滅菌袋
41  繊維製品
42  滅菌用ケース
50  評価用繊維製品パッケージ体
55  バイオロジカルインジケーター
60  評価用繊維製品パッケージ体を収納した滅菌用ケース
65  カバーのない滅菌袋
70  カバーを2辺につけた状態の滅菌袋の正面
71  樹脂フィルム
74  ヒートシール部
75  ヒートシール部
80  従来の繊維製品パッケージ体
81  繊維製品パッケージ体
82  滅菌用ケースの壁面
83  滅菌ガスの流れ
W   滅菌袋の横辺の長さ
L   滅菌袋の縦辺の長さ
w   ガス透過部の横辺の長さ
l   ガス透過部の縦辺の長さ
cy  カバーの縦辺の長さ
cx  カバーの横辺の長さ
G   ガス透過部の重心
1 Sterilization bag (the cover is fixed on one side)
2 Gas transmission part 3a Resin film (front)
3b Resin film (back)
4 heat seal part 4a heat seal part 4b heat seal part 5 opening part 6 cover 7 notch (opening start part)
10 Back surface 30 of sterilization bag Front surface of sterilization bag with cover on three sides 39 Sterilization bag with cover of sterilization bag 30 removed 41 Textile product 42 Case for sterilization 50 Textile package body for evaluation 55 Biological indicator 60 Sterilization case 65 containing textile product package for evaluation 65 Sterilization bag without cover 70 Front surface of sterilization bag with cover on two sides 71 Resin film 74 Heat seal part 75 Heat seal part 80 Conventional fiber product package 81 Textile package 82 Wall of sterilization case 83 Flow of sterilization gas W Side length L of sterilization bag Length L of sterilization bag length w Side length of gas permeation part l Length of gas permeation part Length cy length of cover vertical side cx length of cover horizontal side G center of gravity of gas permeation section

Claims (8)

  1.  開口部とガス透過部とを有し、略長方形の少なくとも2面を有する、滅菌処理に供される滅菌袋であって、
    前記開口部は、前記略長方形の一辺に含まれ、
    前記ガス透過部は、滅菌袋の少なくとも一方の面(かかる面を面Aと称する)に配置されており、かつ、前記ガス透過部は、該ガス透過部の全部を覆うことが可能なカバーを有し、
    前記カバーは、前記ガス透過部を含む面Aに、一部分で固定されており、
    かつ、前記ガス透過部が、以下の(1)および(2)を同時に満たす、滅菌袋。
    (1)前記ガス透過部の重心が、前記面Aの対向する2つの辺の間の距離を1としたときに、面Aのいずれかの辺からの距離が0.02から0.2までの範囲に存在する。
    (2)前記ガス透過部の面積(Sgas)は、前記面Aの全面積(S)に対し4%以上25%以下である。
    A sterilization bag having an opening and a gas permeation part and having at least two surfaces of a substantially rectangular shape, which is subjected to a sterilization process,
    The opening is included on one side of the substantially rectangular shape,
    The gas permeable portion is disposed on at least one surface of the sterilization bag (this surface is referred to as surface A), and the gas permeable portion includes a cover that can cover the entire gas permeable portion. Have
    The cover is partially fixed to the surface A including the gas permeable portion,
    And the sterilization bag with which the said gas permeation | transmission part satisfy | fills the following (1) and (2) simultaneously.
    (1) When the center of gravity of the gas permeable portion is defined as a distance between two opposing sides of the surface A, the distance from any side of the surface A is 0.02 to 0.2. Exists in the range.
    (2) The area (S gas ) of the gas permeable portion is 4% or more and 25% or less with respect to the total area (S 0 ) of the surface A.
  2.  前記カバーの面積(Scov)が、前記ガス透過部の面積(Sgas)に対して100%以上150%以下である、請求項1に記載の滅菌袋。 The sterilization bag according to claim 1, wherein an area (S cov ) of the cover is 100% or more and 150% or less with respect to an area (S gas ) of the gas permeable portion.
  3.  前記ガス透過部の形状が、略長方形である、請求項1または2に記載の滅菌袋。 The sterilization bag according to claim 1 or 2, wherein the gas permeable portion has a substantially rectangular shape.
  4.  前記カバーの形状が略長方形であって、かつ、前記ガス透過部の少なくとも1辺と前記カバーの対応する1辺とが、周縁で接合されない、請求項1~3のいずれかに記載の滅菌袋。 The sterilization bag according to any one of claims 1 to 3, wherein the shape of the cover is substantially rectangular, and at least one side of the gas permeable portion and one side corresponding to the cover are not joined at the periphery. .
  5.  請求項1~4のいずれかに記載の滅菌袋に、滅菌処理された繊維製品が封入された、滅菌処理済み繊維製品パッケージ体。 A sterilized fiber product package, in which the sterilized fiber product is enclosed in the sterilization bag according to any one of claims 1 to 4.
  6.  開口部とガス透過部とを有し、略長方形の少なくとも2面を有する、滅菌袋と、
    滅菌ガスを導入する滅菌用ケースを、少なくとも備え、
    繊維製品が、滅菌袋に収納される工程Aと、
     前記滅菌袋の開口部を密閉し、繊維製品パッケージ体を得る工程Bと、
     複数の前記繊維製品パッケージ体を滅菌用ケースに収納する際、前記滅菌袋に備えたガス透過部を上部に配置する工程Cと、
     複数の前記繊維製品パッケージ体が収納された前記滅菌用ケースを滅菌ガスに暴露させる工程Dと、を有する、滅菌処理済み繊維製品パッケージ体の製造方法。
    A sterilization bag having an opening and a gas permeation part and having at least two substantially rectangular surfaces;
    At least a sterilization case for introducing sterilization gas,
    Step A in which the textile product is stored in a sterile bag;
    Sealing the opening of the sterilization bag to obtain a textile product package B;
    When storing a plurality of the textile product package bodies in a sterilization case, a step C of disposing a gas permeable portion provided in the sterilization bag on the top;
    And a step D of exposing the sterilization case in which a plurality of the fiber product package bodies are stored to a sterilization gas, to produce a sterilized fiber product package body.
  7.  請求項6に記載の滅菌処理済み繊維製品パッケージ体の製造方法において、請求項1~4いずれかに記載の滅菌袋を用いる、滅菌処理済み繊維製品パッケージ体の製造方法。 7. The method for producing a sterilized fiber product package according to claim 6, wherein the sterilized bag according to any one of claims 1 to 4 is used.
  8.  請求項5に記載の複数の滅菌処理済み繊維製品パッケージ体が滅菌用ケースに収納された滅菌梱包体。 A sterilized package in which a plurality of sterilized fiber product packages according to claim 5 are stored in a sterilization case.
PCT/JP2019/017414 2018-04-27 2019-04-24 Sterile bag and manufacturing method of sterilized fabric product package WO2019208628A1 (en)

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Cited By (1)

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US11518600B2 (en) 2020-03-23 2022-12-06 American Sterilizer Company Interface/pouch design for aseptic opening of sterilization pouch

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US6098800A (en) * 1997-12-19 2000-08-08 Rexam Medical Packaging, Inc. Reinforced sterilizable containers
US20040228759A1 (en) * 2003-02-27 2004-11-18 Robert Frost Process for operating a packaging transport system
US20170247132A1 (en) * 2016-02-26 2017-08-31 Schott Ag Method of transferring a plurality of containers and/or closures to a clean room, transport and packaging container and packaging structure therefore

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US5493844A (en) * 1993-02-10 1996-02-27 Haver & Boecker Packaging container for receiving bulk material, and method of and apparatus for making a flat packaging container as well as ventilating and sealing the filled packaging container
US6098800A (en) * 1997-12-19 2000-08-08 Rexam Medical Packaging, Inc. Reinforced sterilizable containers
US20040228759A1 (en) * 2003-02-27 2004-11-18 Robert Frost Process for operating a packaging transport system
US20170247132A1 (en) * 2016-02-26 2017-08-31 Schott Ag Method of transferring a plurality of containers and/or closures to a clean room, transport and packaging container and packaging structure therefore

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11518600B2 (en) 2020-03-23 2022-12-06 American Sterilizer Company Interface/pouch design for aseptic opening of sterilization pouch

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