WO2022163855A1 - Protective clothing - Google Patents

Protective clothing Download PDF

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Publication number
WO2022163855A1
WO2022163855A1 PCT/JP2022/003684 JP2022003684W WO2022163855A1 WO 2022163855 A1 WO2022163855 A1 WO 2022163855A1 JP 2022003684 W JP2022003684 W JP 2022003684W WO 2022163855 A1 WO2022163855 A1 WO 2022163855A1
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WO
WIPO (PCT)
Prior art keywords
protective clothing
nonwoven fabric
fabric
meltblown nonwoven
sheet
Prior art date
Application number
PCT/JP2022/003684
Other languages
French (fr)
Japanese (ja)
Inventor
雅之 北川
祐一郎 林
寛貴 武田
Original Assignee
東レ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東レ株式会社 filed Critical 東レ株式会社
Priority to JP2022578538A priority Critical patent/JPWO2022163855A1/ja
Publication of WO2022163855A1 publication Critical patent/WO2022163855A1/en

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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/002—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/02—Overalls, e.g. bodysuits or bib overalls

Definitions

  • the present invention relates to protective clothing. More specifically, the present invention relates to protective clothing with excellent breathability, water pressure resistance, and dust resistance.
  • Patent Literature 1 discloses a dustproof garment that can suppress dust generation and has improved breathability.
  • the dustproof clothing described in Patent Document 1 has a mesh part to ensure breathability.
  • this dustproof clothing does not have sufficient water resistance. Therefore, this dust-proof clothing is unsuitable for work involving water, and there is a problem that water easily enters the dust-proof clothing, and the wearer is easily contaminated, the workability is significantly reduced, and the wearer is likely to feel uncomfortable. .
  • the present invention was made in view of such conventional problems, and aims to provide protective clothing with excellent breathability, water pressure resistance, and dust resistance.
  • the protective clothing of one aspect of the present invention that solves the above problems is a protective clothing that includes a body portion, and the body portion includes a portion A that covers the pectoralis major muscle of the wearer when worn, and is attached to the body portion. , a sheet-like article covering the portion A, the sheet-like article being attached to a position above the portion A in the length direction of the protective clothing, and the protective clothing having an air permeability of 30 cm 3 / cm 2 /sec or more, and a second fabric having a water pressure resistance of 400 mmH 2 O or more, wherein the first fabric is arranged in the portion A and the first and a first meltblown nonwoven fabric, wherein the second fabric constitutes the sheet-like article and is arranged in a portion other than the portion A of the protective clothing. is.
  • FIG. 1 is a schematic front view of protective clothing according to one embodiment (first embodiment) of the present invention.
  • FIG. 2 is a schematic front view for explaining a sheet-like object.
  • FIG. 3 is a schematic front view for explaining a sheet-like object.
  • FIG. 4 is a schematic front view of protective clothing according to one embodiment (second embodiment) of the present invention.
  • FIG. 5 is a schematic rear view of protective clothing according to one embodiment (second embodiment) of the present invention.
  • FIG. 6 is a schematic front view of protective clothing according to one embodiment (third embodiment) of the present invention.
  • FIG. 1 is a schematic front view of protective clothing according to one embodiment (first embodiment) of the present invention.
  • FIG. 2 is a schematic front view for explaining a sheet-like object.
  • FIG. 3 is a schematic front view for explaining a
  • a protective garment comprises a body portion.
  • the body portion has a portion A that covers the wearer's pectoral muscles when worn.
  • the protective clothing has a sheet-like object attached to the body portion and covering the portion A.
  • the sheet-like object is attached to a position above part A of the protective clothing in the lengthwise direction.
  • the protective clothing has a first fabric with an air permeability of 30 cm 3 /cm 2 /sec or more and a second fabric with a water pressure resistance of 400 mmH 2 O or more.
  • a first fabric is disposed in portion A and has a laminate structure of a first spunbond nonwoven and a first meltblown nonwoven.
  • the second fabric constitutes a sheet-like material and is arranged on a portion other than the portion A of the protective clothing.
  • the “body portion” refers to a portion above the waist of the wearer when the protective clothing is worn by the wearer.
  • the body size of the wearer is not particularly limited.
  • a wearer having the following body dimensions is exemplified for clarity of explanation. That is, the wearer had a height of 171 cm, an upper arm length of 32 cm, a neck-acromion straight line distance of 15 cm, a neck height of 140 cm, a sternum midpoint height of 128 cm, and an anterior armpit.
  • the width is 34 cm
  • the straight distance between the lower corners of the scapula is 20 cm
  • the thigh length is 44 cm
  • the tibia upper edge height is 43 cm.
  • FIG. 1 is a schematic front view of the protective clothing 1 of this embodiment.
  • the body portion 2 of the protective clothing 1 has a portion A that covers the pectoral muscles of the wearer when worn.
  • many important organs for the human body such as the heart and lungs, are present in the vicinity of the pectoralis major muscle. Therefore, the wearer is more sensitive to heat in the pectoral muscles and the areas around the pectoralis major muscles than in areas other than these areas.
  • the first fabric is used for the portion A in the front body portion 2 . This allows the temperature and humidity in the vicinity of the wearer's pectoral muscles to approximate the temperature and humidity of the outside air. As a result, the protective clothing 1 of this embodiment has excellent comfort.
  • the portion A may be any portion that covers part or all of the pectoralis major muscle, and the position and number thereof are not particularly limited.
  • a second fabric with high water pressure resistance is arranged in the portion B other than the portion A.
  • the second fabric forms the sheet 4 and covers the portion A.
  • the protective clothing 1 is provided with a fastener 3 along the length direction at the center of the body part 2 so that the wearer can put on and take off the protective clothing 1. - ⁇
  • portions A made of the first fabric are provided at two locations on the left and right sides of the fastener 3 .
  • portion A can be adjusted as appropriate to obtain the desired breathability.
  • the case where two portions A each having a length of 15 cm and a width of 15 cm are provided is exemplified.
  • the protective clothing 1 is provided with a sheet-like object 4 that covers the portion A.
  • the sheet material 4 is made of the second fabric.
  • FIG. 2 is a schematic front view for explaining the sheet-like material 4.
  • FIG. The sheet material 4 covers the portion A.
  • FIG. 2 illustrates an aspect in which the entire portion A is covered with the sheet-like material 4 .
  • the sheet-like object 4 is preferably attached to the upper position of the protective clothing 1 in the length direction with respect to the portion A (first attachment portion 41).
  • the sheet-like material 4 can prevent water from entering the protective clothing 1 from the portion A, for example, when water splashes from above.
  • a method for attaching the sheet-like material 4 to the protective clothing 1 is not particularly limited.
  • the sheet-like material 4 may be sewn onto the protective clothing 1 or may be attached with an adhesive or the like.
  • the sheet-like object 4 may be detachably attached to the protective clothing 1 by a hook-and-loop fastener, a button, or the like.
  • the sheet-like material 4 is preferably attached to the body part 2 so as to form a gap G for communication between the part A and the outside at a lateral position or a lower position in the length direction of the protective clothing 1 with respect to the part A.
  • FIG. 2 illustrates a mode in which the sheet-like object 4 is attached to the protective clothing 1 at the second attachment portions 42 at lateral positions on both sides in addition to the first attachment portions 41 at the upper position.
  • FIG. 3 is a schematic front view for explaining the sheet-like material 4. As shown in FIG. FIG. 3 illustrates a mode in which the sheet-like object 4 is attached to the protective clothing 1 at the second attachment portion 42 at the lower position in addition to the first attachment portion 41 at the upper position.
  • a gap G is formed between the sheet material 4 and the protective clothing 1 .
  • the gap G enables exchange of air and moisture such as sweat of the wearer between the inside of the protective clothing 1 and the outside of the protective clothing 1 .
  • the protective clothing 1 tends to exhibit excellent breathability and is highly comfortable for the wearer.
  • the sheet-like object 4 is attached to the protective clothing 1 also in the horizontal position and the lower position, the sheet-like object 4 is attached to the protective clothing 1 only in the upper position. The object 4 easily follows the protective clothing 1 when the wearer works, and the portion A is less likely to be exposed to the outside.
  • the protective clothing 1 easily protects the portion A with the sheet-like material 4, and water is prevented from entering the protective clothing 1 from the portion A.
  • the sheet-like material 4 can increase the water pressure resistance of the portion A.
  • the air permeability of the first fabric may be 30 cm 3 /cm 2 /sec or more, preferably 60 cm 3 /cm 2 /sec or more, more preferably 80 cm 3 /cm 2 /sec or more. .
  • the air permeability of the first fabric is preferably 150 cm 3 /cm 2 /s or less, more preferably 130 cm 3 /cm 2 /s or less, and 110 cm 3 /cm 2 /s or less. is more preferred.
  • the protective clothing can bring the environment inside the clothing closer to the environment outside the clothing when working in the protective clothing. As a result, the protective garment has excellent comfort.
  • the method of measuring air permeability is not particularly limited.
  • air permeability can be measured using a permeability tester (FX3300, manufactured by Takayama Lead Co., Ltd.).
  • the first fabric has a laminated structure of a first spunbond nonwoven fabric and a first meltblown nonwoven fabric.
  • the bulk density of the first meltblown nonwoven fabric is preferably 0.05 g/cm 3 or more, and 0 It is more preferably 0.08 g/cm 3 or more, and even more preferably 0.10 g/cm 3 or more.
  • the bulk density of the first meltblown nonwoven fabric is preferably 0.18 g/cm 3 or less, and 0.16 g/cm It is more preferably 3 or less, and even more preferably 0.15 g/cm 3 or less.
  • the bulk density is calculated from the basis weight measured according to JIS L 1913:2010 and the thickness measured according to JIS L 1085:1998, basis weight (g/m 2 )/thickness (m). Calculate from
  • the thickness of the first melt blown nonwoven fabric is preferably 70 ⁇ m or more, more preferably 80 ⁇ m or more, and 90 ⁇ m or more. is more preferred.
  • the thickness of the first melt blown nonwoven fabric is preferably 200 ⁇ m or less, more preferably 160 ⁇ m or less, and 140 ⁇ m or less. is more preferable.
  • the average single fiber diameter of the fibers constituting the first meltblown nonwoven fabric is preferably 3 ⁇ m or more, more preferably 4 ⁇ m or more, and even more preferably 6 ⁇ m or more.
  • the average single fiber diameter of the fibers constituting the first melt blown nonwoven fabric is preferably 15 ⁇ m or less, more preferably 10 ⁇ m or less, and even more preferably 8 ⁇ m or less.
  • the strength of the first melt blown nonwoven fabric is more excellent.
  • the first meltblown nonwoven fabric has a large opening size. As a result, the protective clothing has improved breathability in the portion where the first fabric is used.
  • the average single fiber diameter is equal to or less than the above upper limit, the opening size of the first melt blown nonwoven fabric is small. As a result, the protective clothing has better dust resistance in the areas where the first fabric is used.
  • the average single fiber diameter is determined by taking 10 images at a magnification of 500 using a scanning electron microscope (SEM) (SU3800, manufactured by Hitachi High-Technologies Corporation) and measuring 15 fibers per image. It can be measured by calculating the average value after measuring the fiber diameter.
  • SEM scanning electron microscope
  • the material of the fibers constituting the first meltblown nonwoven fabric is not particularly limited.
  • fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof.
  • the main component of the fiber material is a polyolefin-based resin from the viewpoint of the productivity of the fabric and the texture of the fabric.
  • the polyolefin-based resin is preferably polypropylene from the viewpoint that dust resistance is likely to be improved by electret processing.
  • the first melt-blown nonwoven fabric containing a polyolefin resin as a main component means that the first melt-blown nonwoven fabric contains a polyolefin resin in an amount of 80% by mass or more with respect to the entire first melt-blown nonwoven fabric. It means to contain.
  • the first meltblown nonwoven fabric preferably contains 90% by mass or more of the polyolefin resin relative to the entire first meltblown nonwoven fabric, and more preferably consists of only the polyolefin resin.
  • the meltblown nonwoven fabric layer is made of only a polyolefin resin
  • the meltblown nonwoven fabric may contain an additive such as a hindered amine as long as the effects of the present embodiment are not impaired.
  • the first meltblown nonwoven fabric can be obtained by a meltblowing method.
  • the meltblowing method is generally a method in which a thermoplastic polymer extruded from a spinneret is jetted with hot air to make it finer into fibers, and a web is formed by utilizing the self-bonding properties of these fibers.
  • Spinning conditions in the meltblowing method include polymer discharge rate, nozzle temperature, air pressure, and the like.
  • a nonwoven fabric having a desired fiber diameter can be obtained by optimizing these spinning conditions. Specifically, when producing the fibers used in the first meltblown nonwoven fabric, it is easy to reduce the fineness of the fibers by reducing the amount of resin discharged, increasing the discharge speed, and increasing the degree of stretching of the fibers.
  • the first meltblown nonwoven fabric is preferably an electrically charged meltblown nonwoven fabric. Since the first meltblown nonwoven fabric is an electrically charged meltblown nonwoven fabric, the protective clothing can achieve both high air permeability and high dust resistance of the first fabric.
  • the material of the fibers constituting the first spunbonded nonwoven fabric is not particularly limited.
  • fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof.
  • the fiber material is preferably polyolefin from the viewpoint of fabric productivity and texture.
  • a spunbond nonwoven fabric is a nonwoven fabric obtained by the spunbond method.
  • the method for producing the spunbond nonwoven fabric is not particularly limited.
  • a spunbond nonwoven fabric is produced by melting a polymer composition, extruding it from a spinneret, stretching it, stacking it on a conveyor belt or the like, forming it into a web, and then subjecting it to heat embossing or the like. It is obtained by fusing the fibers together (spunbond method).
  • the average single fiber diameter of the fibers constituting the first spunbond nonwoven fabric is preferably 18 ⁇ m or more, more preferably 19 ⁇ m or more, and even more preferably 20 ⁇ m or more. Also, the average single fiber diameter of the fibers is preferably 30 ⁇ m or less, more preferably 28 ⁇ m or less, and even more preferably 26 ⁇ m or less.
  • the first spunbond nonwoven fabric can have an increased sheet strength and a larger opening size. Therefore, the protective clothing has improved breathability in the region where the first fabric is used.
  • the opening size of the first spunbonded nonwoven fabric is small. Therefore, the protective clothing is more dustproof.
  • the first spunbond nonwoven fabric may be imparted with functions such as water repellency, oil repellency, antistatic, flame retardancy, antibacterial and antifungal properties, for example.
  • the method of laminating the first spunbond nonwoven fabric and the first meltblown nonwoven fabric in the manufacturing process of the first fabric is not particularly limited.
  • the first fabric preferably comprises the first meltblown nonwoven fabric having charge.
  • the first meltblown nonwoven fabric and the first spunbond nonwoven fabric which are separately produced and have an electrostatic charge, need to be bonded together using an adhesive (first adhesive) or bonded together by embossing. be.
  • the first meltblown nonwoven fabric and the first spunbond nonwoven fabric are preferably bonded with an adhesive (first adhesive).
  • first adhesive an adhesive
  • the content of the adhesive contained between the layers of the first meltblown nonwoven fabric and the first spunbond nonwoven fabric is preferably 0.5 g/m 2 or more, and is 1.0 g/m 2 or more. is more preferable.
  • the adhesive content is preferably 5.0 g/m 2 or less, more preferably 2.0 g/m 2 or less.
  • the content of the adhesive is equal to or higher than the above lower limit, the interlayer adhesion between the first spunbond nonwoven fabric and the first meltblown nonwoven fabric is more excellent.
  • the protective clothing is less susceptible to delamination when the wearer works while wearing the protective clothing.
  • the content of the adhesive is equal to or less than the above upper limit value, the first fabric has high breathability. As a result, the first fabric has excellent flexibility.
  • the first fabric may further comprise a third spunbond nonwoven fabric.
  • the first fabric preferably comprises a first spunbond nonwoven fabric, a first meltblown nonwoven fabric and a third spunbond nonwoven fabric laminated in this order.
  • the protective garment When such a first fabric is used to fabricate a protective garment such that the first spunbond nonwoven is positioned on the wearer's side, the protective garment will have a third spunbond nonwoven further outwardly of the first meltblown nonwoven. A nonwoven is placed.
  • the protective garment tends to protect the first meltblown nonwoven from external stress by the third spunbond nonwoven. Therefore, the performance of the protective clothing, such as dust resistance, is less likely to deteriorate due to scratches on the first meltblown nonwoven fabric. Furthermore, such protective clothing has excellent abrasion resistance performance.
  • the third spunbonded nonwoven fabric may be the same as the first spunbonded nonwoven fabric.
  • the first fabric may consist of only the first spunbond nonwoven fabric and the first meltblown nonwoven fabric.
  • the first meltblown nonwoven fabric is preferably in direct contact with the sheet material. This makes it possible to reduce the manufacturing cost of the protective clothing.
  • Meltblown nonwoven fabrics are inferior in abrasion resistance and easily damaged, so when used for protective clothing, as described above, the spunbond nonwoven fabric is laminated on the surface and used as an S/M/S structure. By covering, it is possible to have an M/S configuration in which the melt-blown nonwoven fabric is exposed on the surface.
  • the second fabric of the protective clothing of the present embodiment may have a lower limit of water pressure resistance of 400 mmH2O or more, preferably 700 mmH2O or more, and more preferably 1000 mmH2O or more.
  • the upper limit of water pressure resistance of the second fabric is not particularly limited.
  • the water pressure resistance of the second fabric is preferably 2000 mmH2O or less, more preferably 1500 mmH2O or less. Since the water pressure resistance is equal to or higher than the above lower limit value, the protective clothing exhibits excellent water pressure resistance. On the other hand, since the water pressure resistance is equal to or less than the upper limit value described above, the productivity of the fabric is improved, thereby improving the productivity of the protective clothing.
  • the method for measuring the water pressure resistance is not particularly limited. In this embodiment, the water pressure resistance is measured by the JIS L 1092:2009 low pressure method using a Hydrotester (FX3000-IV, manufactured by TEXTEST).
  • the second fabric is preferably made of non-woven fabric.
  • the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable.
  • the protective clothing is more dustproof and flexible.
  • the second fabric is made of nonwoven fabric, it preferably has a laminated structure of the second spunbond nonwoven fabric and the second meltblown nonwoven fabric. As a result, the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable. Also, the protective clothing is more dustproof and flexible.
  • the average single fiber diameter of the fibers constituting the second melt-blown nonwoven fabric is preferably 0.1 ⁇ m or more, more preferably 0.4 ⁇ m or more, and 0.8 ⁇ m or more. is more preferred.
  • the average single fiber diameter of the fibers constituting the second meltblown nonwoven fabric is preferably 6.0 ⁇ m or less, more preferably 4.0 ⁇ m or less, and even more preferably 3.0 ⁇ m or less.
  • the material of the fibers that make up the second meltblown nonwoven fabric is not particularly limited.
  • fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof.
  • the main component of the fiber material is a polyolefin-based resin from the viewpoint of the productivity of the fabric and the texture of the fabric.
  • the second melt blown nonwoven fabric is mainly composed of a polyolefin resin, and the second melt blown nonwoven fabric contains a polyolefin resin in an amount of 80% by mass or more with respect to the entire second melt blown nonwoven fabric. It means to contain.
  • the second meltblown nonwoven fabric preferably contains 90% by mass or more of the polyolefin resin with respect to the entire second meltblown nonwoven fabric, and more preferably consists of only the polyolefin resin.
  • the second meltblown nonwoven fabric can be obtained in the same manner as the first meltblown nonwoven fabric.
  • the material of the fibers constituting the second spunbonded nonwoven fabric is not particularly limited.
  • fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof.
  • the fiber material is preferably polyolefin from the viewpoint of fabric productivity and texture.
  • the average single fiber diameter of the fibers constituting the second spunbond nonwoven fabric is preferably 6.5 ⁇ m or more, more preferably 7.5 ⁇ m or more, and even more preferably 8.4 ⁇ m or more. Also, the average single fiber diameter of the fibers is preferably 11.9 ⁇ m or less, more preferably 11.2 ⁇ m or less, and even more preferably 10.6 ⁇ m or less.
  • the second spunbond nonwoven fabric having an average single fiber diameter of not less than the above-described lower limit value can increase the tensile strength and tear strength of the fabric. This results in a more robust protective garment.
  • the average single fiber diameter is equal to or less than the above upper limit, the opening size of the second spunbonded nonwoven fabric is small. Therefore, in the protective clothing, the dust resistance of the second fabric is superior, and the flexibility of the portion using the second fabric is further improved.
  • the second spunbond nonwoven fabric may be imparted with functions such as water repellency, oil repellency, antistatic, flame retardancy, antibacterial and antifungal properties.
  • the second spunbond nonwoven and the second meltblown nonwoven may be directly laminated or adhered by an adhesive (second adhesive).
  • the second fabric preferably has a middle layer and respective outer layers provided on both surfaces of the middle layer.
  • each outer layer is preferably a second spunbond nonwoven
  • the middle layer includes one or more layers of the second meltblown nonwoven, S/M/S, S/M/M/S, S/ An M/M/M/S configuration can be mentioned, and it is preferable that the water pressure resistance is 1000 mmH2O .
  • the number and types of middle layers are not particularly limited.
  • the content of the second melt blown nonwoven fabric is preferably 1% by mass or more and 20% by mass or less, and 5% by mass or more and 15% by mass or less, relative to the total mass of the second fabric. is more preferred.
  • the content of the second spunbond nonwoven fabric in the second fabric is preferably more than 80% by mass and less than 99% by mass.
  • the content of the adhesive contained between the layers of the second spunbond nonwoven fabric and the second meltblown nonwoven fabric is preferably greater than 0 g/m 2 and less than or equal to 0.4 g/m 2 . Since the content of the adhesive is equal to or less than the above upper limit, the second cloth has extremely excellent flexibility. For the same reason, the adhesive content is more preferably 0.2 g/m 2 or less, and it is particularly preferred that no adhesive is used.
  • the second fabric is used as the part B of the protective clothing and the sheet material, and the second fabric is required to have high water pressure resistance.
  • the breathability of the suit is achieved by the first fabric located in section A. Therefore, the second fabric does not require high breathability compared to the first fabric.
  • the method of laminating the second spunbond nonwoven fabric and the second meltblown nonwoven fabric is not particularly limited as long as it does not impair the effects of the present embodiment.
  • the second meltblown nonwoven fabric and the second spunbond nonwoven fabric has a surface roughness measured by the KES method of 1.0 ⁇ m or more. It is more preferably 6 ⁇ m or more. Also, the surface roughness is preferably 3.0 ⁇ m or less, more preferably 2.8 ⁇ m or less.
  • the surface roughness is equal to or less than the above upper limit, foreign matter such as dust is less likely to adhere to the second cloth, and foreign matter such as dust adheres to the second cloth, and is easy to remove.
  • the surface roughness is equal to or higher than the above lower limit value, the second fabric has moderate smoothness and can suppress occurrence of partial unevenness in dust resistance.
  • the surface roughness by the KES method is measured using an automatic texture measuring device (KESFB-4-AUTO-A, manufactured by Kato Tech Co., Ltd.), standard applied pressure: 10 gf, contact: diameter 0 5 mm piano wire, contact length: 5 mm, moving speed: 1 mm/sec, tensile tension: 400 g.
  • KESFB-4-AUTO-A automatic texture measuring device
  • the protective clothing 1 has the first fabric with excellent air permeability arranged in the portion A covering the pectoral muscles of the wearer. Further, the portion A is covered with a sheet-like material 4, and the sheet-like material 4 constitutes a second fabric having high water pressure resistance. As a result, the protective clothing 1 is excellent in air permeability, water pressure resistance and dust resistance at the same time.
  • portions A made of the first fabric are provided at two locations on the left and right sides of the fastener 3 of the body portion 2 .
  • the protective clothing of this embodiment may be provided with the portion A on either the left or right side.
  • the protective clothing 1 of this embodiment may further include a hood 5.
  • the hood 5 provided by the protective clothing 1 is the part of the protective clothing 1 that covers the wearer's head when the protective clothing 1 is worn.
  • Body portion 2 and hood 5 are preferably integrated.
  • Protective clothing in which the body part and the hood are separate pieces are likely to create a gap between the body part and the hood when the jacket having the body part and the hood are worn.
  • the body and the hood need to be provided with a large number of portions that overlap each other. Such a portion where the body part and the hood overlap tends to deteriorate in breathability and flexibility.
  • the protective clothing 1 in which the body portion 2 and the hood 5 are integrated, there is no gap between the body portion 2 and the hood 5, and there is no overlap between the body portion 2 and the hood 5. not exist. Therefore, the protective clothing 1 can be excellent in both comfort and workability when worn.
  • the hood 5 can be constructed from the second fabric.
  • the protective clothing 1 of this embodiment may include a lower garment 7 in addition to the upper garment 6 including the body portion 2 . It is preferable that the upper garment 6 and the lower garment 7 be integrated. Protective clothing in which the upper and lower garments are separate pieces is likely to create a gap between the upper and lower garments when the upper and lower garments are worn. In this case, in order to prevent gaps, when the protective clothing is worn, it is necessary to provide a large amount of overlap between the outer garment and the lower garment. Breathability and flexibility are likely to be reduced in such a portion where the upper garment and the lower garment overlap.
  • the protective clothing 1 in which the upper garment 6 and the lower garment 7 are integrated, there is no gap between the upper garment 6 and the lower garment 7, and the upper garment 6 and the lower garment 7 overlap each other. not exist. Therefore, the protective clothing 1 can be excellent in both comfort and workability when worn.
  • the lower garment 7 can be mainly composed of the second fabric.
  • the portion A made of the first fabric and the sheet-like material covering the portion A may be provided in a part of the lower garment 7 .
  • the portion A may be provided around the waist of the lower garment 7 or the like.
  • the protective clothing 1 can maintain high water pressure resistance while improving breathability around the waist.
  • FIG. 4 is a schematic front view of protective clothing 1a of one embodiment (second embodiment) of the present invention.
  • FIG. 5 is a schematic rear view of protective clothing 1a of one embodiment (second embodiment) of the present invention. In this embodiment, descriptions of configurations common to the first embodiment will be omitted as appropriate.
  • the protective clothing 1a has a fastener 3 for the wearer to put on and take off the protective clothing 1a. There is no zipper on the front body part. Therefore, in the protective clothing 1a, it is easy to provide the first fabric in the portion A covering the pectoral muscles of the wearer.
  • the dimensions of the portion A to which the first fabric is applied are not particularly limited.
  • the dimensions of part A are 15 cm long and 30 cm wide.
  • the protective clothing 1a of the present embodiment is likely to have better breathability.
  • the fastener 3 is provided along the length direction of the body part 2 on the back of the protective clothing 1a.
  • the protective clothing may be provided with fasteners on the sides of the jacket 6 .
  • FIG. 6 is a schematic front view of protective clothing 1b of one embodiment (third embodiment) of the present invention.
  • the protective clothing 1b is provided separately with an upper garment 6b and a lower garment 7b.
  • descriptions of configurations common to the first embodiment will be omitted as appropriate.
  • the protective clothing 1b of this embodiment has no fasteners on the jacket 6b. Therefore, the wearer puts on and takes off the jacket 6b through the opening near the waist. As a result, in the protective clothing 1b of this embodiment, it is easy to provide the first fabric in the portion A covering the pectoral muscles of the wearer.
  • the dimensions of the portion A to which the first fabric is applied are not particularly limited.
  • the dimensions of part A are 15 cm long and 30 cm wide.
  • the protective clothing 1b is likely to have better breathability.
  • the present invention for solving the above problems mainly includes the following configurations.
  • Protective clothing comprising a body portion, the body portion having a portion A that covers the pectoralis major muscle of the wearer when worn, and a sheet-like object attached to the body portion and covering the portion A. , the sheet-like object is attached to a position above the portion A in the length direction of the protective clothing, and the protective clothing includes a first fabric having an air permeability of 30 cm 3 /cm 2 /second or more.
  • a second fabric having a water pressure resistance of 400 mmH 2 O or more, the first fabric being disposed in the portion A, and the first spunbond nonwoven fabric and the first meltblown nonwoven fabric Protective clothing having a laminated structure, wherein the second fabric constitutes the sheet-like material and is arranged in a portion other than the portion A of the protective clothing.
  • the protective clothing has a first fabric with excellent air permeability in the portion A covering the wearer's pectoral muscles. Further, the portion A is covered with a sheet-like material, and the sheet-like material constitutes a second cloth having high water pressure resistance. As a result, the protective clothing is simultaneously excellent in breathability, water pressure resistance and dust resistance.
  • the sheet-like object covers the entire portion A and is attached to the body portion at a position above the portion A in the length direction of the protective clothing, and the portion a second attachment part attached to the body part so as to form a gap for communication between the part A and the outside at a lateral position or a lower position in the length direction of the protective clothing with respect to A. , (1).
  • the sheet-like material is attached to the body portion at the upper position of the portion A. Therefore, for example, when water falls from above or diagonally above, the protective clothing easily protects the portion A with a sheet-like material, and easily prevents water from entering the protective clothing from the portion A. Also, the sheet-like material is attached to the body part so as to form a gap. Therefore, the protective clothing is easy to ensure breathability.
  • the bulk density of the first melt-blown nonwoven fabric is 0.05 to 0.18 g/cm 3 , the thickness of the first melt-blown nonwoven fabric is 70 to 200 ⁇ m, and the first melt-blown nonwoven fabric is , a meltblown nonwoven fabric having an electrostatic charge, wherein the first spunbond nonwoven fabric and the first meltblown nonwoven fabric are bonded by an adhesive, and the content of the adhesive is 0.5-5.0g/m 2 ;
  • the protective clothing according to (1) or (2).
  • the protective clothing can easily achieve both excellent breathability and dust resistance.
  • the protective clothing has excellent flexibility, and the first fabric is resistant to delamination.
  • the first fabric is composed only of the first spunbond nonwoven fabric and the first meltblown nonwoven fabric, and the first meltblown nonwoven fabric is in direct contact with the sheet-like material, ( Protective clothing according to any one of 1) to (3).
  • meltblown nonwoven fabrics have poor wear resistance and are easily damaged, so when used for protective clothing, spunbond nonwoven fabrics are laminated on the surface and used as an S/M/S structure, but the surface of the meltblown nonwoven fabric is covered with a sheet-like material. Thereby, it is possible to have an M/S configuration in which the melt-blown nonwoven fabric is exposed on the surface.
  • the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable. Also, the protective clothing is more dustproof and flexible.
  • the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable. Also, the protective clothing is more dustproof and flexible.
  • the second meltblown nonwoven fabric has an average single fiber diameter of 0.1 to 6.0 ⁇ m, and the second spunbond nonwoven fabric has an average single fiber diameter of 6.5 to 11.9 ⁇ m;
  • the protective clothing has better dust resistance and breathability.
  • the second fabric has a middle layer and outer layers provided on both surfaces of the middle layer, each of the outer layers being a second spunbond nonwoven fabric, and the middle layer 2 , and has a water pressure resistance of 1000 mmH2O or more.
  • the protective clothing has better dust resistance, breathability, and water pressure resistance.
  • FIG. 7 is a conceptual diagram of an SEM image field of view of a cross section of fabric. A method for measuring the thickness of each layer constituting the fabric will be described with reference to FIG. The schematic view of the SEM image field of FIG.
  • the length of the parting line was read to the first decimal place when the unit of the length of the parting line was ⁇ m, and was rounded off to the first decimal place.
  • the above measurement is performed on 10 SEM images of different parts of the cross section of the fabric, and the average value of 50 measured values of the length of the parting line overlapping the spunbond nonwoven fabric layer is the spunbond nonwoven fabric. It is the thickness of the layer.
  • the thickness of the melt-blown nonwoven fabric layer was defined as the average value of 50 measurement values of the length of the parting lines overlapping the melt-blown nonwoven fabric layer.
  • a site 87 that looks like a cavity (that is, a site where no fibers are shown) is observed at the boundary between the spunbond nonwoven fabric layer and the meltblown nonwoven fabric layer in the SEM image, and when the site that looks like a cavity and the parting line overlap , assuming that this hollow portion was part of the meltblown nonwoven fabric layer, the length of the parting line overlapping the meltblown nonwoven fabric layer and the length of the parting line overlapping the spunbond nonwoven fabric layer were measured. That is, in one example shown in FIG. 7, what is indicated at 89 is the length of the split line 84 overlapping the meltblown nonwoven layer, and what is indicated at 88 is the length of the split line overlapping the spunbond nonwoven layer. is the length of line 84; When the fabric further comprises a spunbond nonwoven fabric layer, the thickness of the spunbond nonwoven fabric layer was measured by the same measuring method as that for measuring the thickness of the spunbond nonwoven fabric layer.
  • 15 fibers constituting the spunbond nonwoven fabric layer were randomly selected from the spunbond nonwoven fabric layer shown in the SEM image, and the fiber diameters of these fibers were measured. Then, the average of the obtained 15 measured values was taken as the average fiber diameter of the fibers constituting the spunbond nonwoven fabric layer.
  • 15 fibers constituting the melt-blown nonwoven fabric layer were randomly selected from the melt-blown nonwoven fabric layer shown in the SEM image, and the fiber diameters of these fibers were measured. Then, the average of the obtained 15 measured values was taken as the average fiber diameter of the fibers constituting the melt blown nonwoven fabric layer.
  • the fiber diameter of the fiber was read to the first decimal place when the fiber diameter was expressed in ⁇ m, and was rounded off to the first decimal place.
  • the average fiber diameter of the fibers constituting the spunbond nonwoven fabric layer is the same as the above method for measuring the average fiber diameter of the fibers constituting the spunbond nonwoven fabric layer. It was measured by the same measuring method.
  • Air permeability The air permeability of the fabric was measured based on JIS L 1913-2010 Frazier method, and the amount of air passing through a 15 cm x 15 cm test piece. The obtained average value of three measurements of the amount of passing air was taken as the air permeability.
  • Adhesive content Five test pieces of 100 mm square fabric were prepared, and left to stand for 24 hours in an atmosphere with a temperature of 20 ° C. and a humidity of 65% RH, and then each of the five test pieces The initial mass (g) of was measured. Next, the five test pieces were immersed in 200 ml of solvent (xylene) set at a temperature of 50° C. and filled in a 300 ml container for 6 hours. Then, the five test pieces were again immersed in 200 ml of solvent (xylene) set at a temperature of 50° C. and packed in a 300 ml container for 6 hours. Subsequently, the five test pieces were allowed to stand in an atmosphere at a temperature of 140° C. for 2 hours.
  • solvent xylene
  • Adhesive content (g/m 2 ) (initial mass (g) - mass after removing adhesive (g))/0.01
  • Comfort test method After the monitor wore the protective clothing (M size), the monitor evaluated the temperature, humidity and comfort (humidity) inside the clothing after going up and down the step. The above comfort test was conducted on the same protective clothing by 3 monitors, and the most common test result among the 3 monitors' evaluations was adopted as the final test result. The three monitors who participated in the comfort test were male, weighed 58-64 kg, and were 168-174 cm tall. ⁇ Test method> Each monitor was subjected to a comfort test in the order of S1, S2, S3, S4, and S5 below. S1: Wear only pants (88% polyester, 12% polyurethane) and cotton ankle socks.
  • S2 Attach a temperature/humidity sensor around the pectoralis major muscle of the left chest, wear protective clothing, and wear sneakers.
  • Tempoture and humidity sensor SHA-3151, manufactured by T&D, data logger: T&D TR-72wf, manufactured by T&D
  • S3 Sit in a room with an atmosphere of 20°C and 50% RH for 30 minutes and remain still.
  • S4 Move to a room with an atmosphere of 30° C. and 50% RH, and perform stepping up and down for 20 minutes in the same atmosphere. (stepping step interval: 15 steps/10 seconds, stepping height 20cm)
  • S5 Measure the temperature and humidity inside the clothes after 20 minutes, and evaluate the comfort. ⁇ Evaluation Criteria> Each monitor evaluated comfort according to the following criteria. A: There was no stuffiness, and comfort was very excellent. B: Less stuffiness and excellent comfort. C: A lot of stuffiness and poor comfort.
  • Example 1 Two sheets of polypropylene spunbond nonwoven fabric (basis weight: 20 g/m 2 ) and one electrically charged polypropylene meltblown nonwoven fabric (basis weight: 15 g/m 2 , bulk density: 0.14 g/cm 3 , thickness: 109 ⁇ m, fiber diameter 6 ⁇ m).
  • a first fabric was prepared in which a spunbond nonwoven fabric, a meltblown nonwoven fabric, and a spunbond nonwoven fabric were laminated in this order and the respective layers were bonded.
  • the adhesion between the layers of the first fabric was performed by disposing a hot-melt adhesive containing synthetic rubber as a main component between the layers using a spray.
  • the content of hot melt adhesive in each layer of the first fabric was 2.0 g/m 2 per layer.
  • the air permeability of the first fabric was 94 cm 3 /cm 2 /sec, and the water pressure resistance was 202 mmH 2 O.
  • a polypropylene melt-blown nonwoven fabric (11 g/m 2 basis weight, 1 ⁇ m fiber diameter) was directly formed on one side of the polypropylene spunbond nonwoven basis (27 g/m 2 basis weight) to obtain a laminate.
  • a polypropylene spunbond nonwoven fabric (basis weight: 27 g/m 2 ) was directly formed on the polypropylene meltblown nonwoven fabric side of this laminate to obtain a second fabric.
  • the content of hot melt adhesive in each layer of the second fabric was 0 g/m 2 per layer.
  • the air permeability of the second fabric was 8 cm 3 /cm 2 /sec, and the water pressure resistance was 1070 mmH 2 O.
  • Example 1 After that, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out from the obtained first fabric and the obtained second fabric. These multiple parts were then sewn together with a sewing machine to form a coverall type protective clothing with a hood. The obtained protective clothing was used as the protective clothing of Example 1.
  • FIGS 1 and 2 show the conceptual diagrams of the obtained protective clothing.
  • the protective clothing 1 has a pair of sleeve portions, a body portion 2, a lower garment 6 and a hood 5.
  • the front body portion has a portion A that covers the wearer's pectoral muscles.
  • the dimensions of the portion A are 15 cm long and 15 cm wide, and are provided at two locations on the left and right sides of the fastener 3 .
  • the portion A is covered with a sheet-like material, and the size of the sheet-like material is 20 cm long and 20 cm wide.
  • the portion A is made of the first fabric, and the other portions and the sheet material other than the portion A are made of the second fabric.
  • the protective clothing 1 of Example 1 has a sewn part in which the first fabric and the second fabric are sewn in the front body part (front body part), and furthermore, the first fabric is sewn on the upper part of the sheet-like article.
  • 2nd fabric and 2nd fabric are sewn to the 1st attachment part and the 2nd attachment part of the horizontal position on both sides, the 1st attachment part sews 20 cm in length, and the 2nd attachment part sews 5 cm in length. It has a sewn part.
  • Table 1 shows the properties of the first fabric used, the properties of the second fabric used, and the evaluation results.
  • Comparative example 1 A fabric similar to the second fabric of the protective clothing of Example 1 was prepared as the second fabric. After that, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out from the obtained second fabric. These multiple parts were then sewn together with a sewing machine to form a coverall type protective clothing with a hood. The obtained protective clothing was used as the protective clothing of Comparative Example 1.
  • FIG. 8 is a conceptual diagram of the front surface of the protective clothing 9 of Comparative Example 1.
  • FIG. Protective clothing 9 includes a pair of sleeve portions 91 , a body portion 92 , a lower garment 93 and a hood 94 .
  • the sleeve portion 91, the body portion 92, the lower garment 93, and the hood 94 are made of the second fabric. That is, the protective clothing 9 of Comparative Example 1 is composed only of the second fabric.
  • Table 1 shows the type of fabric used for each part and the evaluation results.
  • Example 1 which is a protective clothing comprising a first fabric with an air permeability of 94 cm 3 /cm 2 /sec and a second fabric with a water pressure resistance of 1070 mmH 2 O, and protective clothing consisting only of the second fabric. Comparative Example 1, which is clothing, is summarized.
  • Example 1 the temperature inside the protective clothing was 33°C and the relative humidity was 77% or less when the protective clothing was worn. Therefore, this protective garment received an A or B rating in the wearer's comfort test. Therefore, the wearer wearing Example 1 was comfortable.
  • Comparative Example 1 the temperature inside the protective clothing when worn was 34° C. and the relative humidity was 82%. Therefore, the protective clothing was evaluated as C in the wearer's comfort test, indicating poor comfort.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Textile Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

Provided is a protective clothing having excellent breathability, water pressure resistance and dust resistance. The protective clothing comprises a body portion; the body portion includes a portion A that covers the wearer's chest muscle when the clothing is worn, and has a sheet-shaped material that is attached to the body portion and covers the portion A; the sheet-shaped material is attached at a position above the portion A in the length direction of the protective clothing; the protective clothing has a first cloth having a breathability of 30 cm3/cm2/sec or more and a second cloth having a water pressure resistance of 400 mm H2O or more; the first cloth is arranged in the portion A and has a laminated structure of a first spunbonded nonwoven fabric and a first melt blown nonwoven fabric; and the second cloth constitutes the sheet-shaped material and is arranged in a portion outside the portion A of the protective clothing.

Description

防護服protective clothing
　本発明は、防護服に関する。より詳細には、本発明は、通気性、耐水圧性および防塵性が優れる防護服に関する。 The present invention relates to protective clothing. More specifically, the present invention relates to protective clothing with excellent breathability, water pressure resistance, and dust resistance.
　従来、粉塵を伴う作業や水を扱う作業において、作業者は、衣服の上に防護服を着用して作業することがある。また、近年では、夏季に猛暑が続く時もあり、着用者が涼しく快適に作業できる防護服が求められている。特許文献１には、発塵を抑制でき、通気性を向上させた防塵衣が開示されている。 Conventionally, when working with dust or working with water, workers sometimes wear protective clothing over their clothing. Moreover, in recent years, there are times when intense heat continues in the summer, and there is a demand for protective clothing that allows the wearer to work in a cool and comfortable manner. Patent Literature 1 discloses a dustproof garment that can suppress dust generation and has improved breathability.
特開２００８－１２７７００号公報Japanese Patent Application Laid-Open No. 2008-127700
　特許文献１に記載の防塵衣は、通気性を確保するためにメッシュ部を有している。しかしながら、この防塵衣は、耐水性が充分でない。そのため、この防塵衣は、水を扱う作業には不向きであり、防塵衣内に水が入り込みやすく、着用者が汚染を受けたり、作業性が著しく低下したり、不快に感じやすいという問題がある。 The dustproof clothing described in Patent Document 1 has a mesh part to ensure breathability. However, this dustproof clothing does not have sufficient water resistance. Therefore, this dust-proof clothing is unsuitable for work involving water, and there is a problem that water easily enters the dust-proof clothing, and the wearer is easily contaminated, the workability is significantly reduced, and the wearer is likely to feel uncomfortable. .
　本発明は、このような従来の課題に鑑みてなされたものであり、通気性、耐水圧性および防塵性が優れる防護服を提供することを目的とする。 The present invention was made in view of such conventional problems, and aims to provide protective clothing with excellent breathability, water pressure resistance, and dust resistance.
　上記課題を解決する本発明の一態様の防護服は、身頃部を備える防護服であり、前記身頃部は、着用時に着用者の大胸筋を覆う部分Ａを備え、前記身頃部に取り付けられ、前記部分Ａを覆うシート状物を有し、前記シート状物は、前記部分Ａに対する、前記防護服の着丈方向の上位置に取り付けられており、前記防護服は、通気度が３０ｃｍ3／ｃｍ2／秒以上である第１の生地と、耐水圧が４００ｍｍＨ2Ｏ以上である第２の生地と、を有し、前記第１の生地は、前記部分Ａに配置され、かつ、第１のスパンボンド不織布と第１のメルトブロー不織布との積層構造を有し、前記第２の生地は、前記シート状物を構成し、前記防護服の部分Ａ以外の部分に配置されている、防護服である。 The protective clothing of one aspect of the present invention that solves the above problems is a protective clothing that includes a body portion, and the body portion includes a portion A that covers the pectoralis major muscle of the wearer when worn, and is attached to the body portion. , a sheet-like article covering the portion A, the sheet-like article being attached to a position above the portion A in the length direction of the protective clothing, and the protective clothing having an air permeability of 30 cm 3 / cm 2 /sec or more, and a second fabric having a water pressure resistance of 400 mmH 2 O or more, wherein the first fabric is arranged in the portion A and the first and a first meltblown nonwoven fabric, wherein the second fabric constitutes the sheet-like article and is arranged in a portion other than the portion A of the protective clothing. is.
図１は、本発明の一実施形態（第１の実施形態）の防護服の模式的な正面図である。FIG. 1 is a schematic front view of protective clothing according to one embodiment (first embodiment) of the present invention. 図２は、シート状物を説明するための模式的な正面図である。FIG. 2 is a schematic front view for explaining a sheet-like object. 図３は、シート状物を説明するための模式的な正面図である。FIG. 3 is a schematic front view for explaining a sheet-like object. 図４は、本発明の一実施形態（第２の実施形態）の防護服の模式的な正面図である。FIG. 4 is a schematic front view of protective clothing according to one embodiment (second embodiment) of the present invention. 図５は、本発明の一実施形態（第２の実施形態）の防護服の模式的な背面図である。FIG. 5 is a schematic rear view of protective clothing according to one embodiment (second embodiment) of the present invention. 図６は、本発明の一実施形態（第３の実施形態）の防護服の模式的な正面図である。FIG. 6 is a schematic front view of protective clothing according to one embodiment (third embodiment) of the present invention. 図７は、生地の断面のＳＥＭ画像視野の概念図である。FIG. 7 is a conceptual diagram of an SEM image field of view of a cross section of fabric. 図８は、比較例１の防護服の前面の概念図である。8 is a conceptual diagram of the front surface of the protective clothing of Comparative Example 1. FIG.
＜第１の実施形態＞
　本発明の一実施形態の防護服は、身頃部を備える。身頃部は、着用時に着用者の大胸筋を覆う部分Ａを備える。防護服は、身頃部に取り付けられ、部分Ａを覆うシート状物を有する。シート状物は、部分Ａに対する、防護服の着丈方向の上位置に取り付けられている。防護服は、通気度が３０ｃｍ3／ｃｍ2／秒以上である第１の生地と、耐水圧が４００ｍｍＨ2Ｏ以上である第２の生地とを有する。第１の生地は、部分Ａに配置され、かつ、第１のスパンボンド不織布と第１のメルトブロー不織布との積層構造を有する。第２の生地は、シート状物を構成し、防護服の部分Ａ以外の部分に配置されている。以下、それぞれについて説明する。なお、本実施形態において、「身頃部」とは、防護服が着用者に着用された際に、着用者の腰よりも上に相当する部分をいう。 <First Embodiment>
A protective garment according to one embodiment of the present invention comprises a body portion. The body portion has a portion A that covers the wearer's pectoral muscles when worn. The protective clothing has a sheet-like object attached to the body portion and covering the portion A. The sheet-like object is attached to a position above part A of the protective clothing in the lengthwise direction. The protective clothing has a first fabric with an air permeability of 30 cm 3 /cm 2 /sec or more and a second fabric with a water pressure resistance of 400 mmH 2 O or more. A first fabric is disposed in portion A and has a laminate structure of a first spunbond nonwoven and a first meltblown nonwoven. The second fabric constitutes a sheet-like material and is arranged on a portion other than the portion A of the protective clothing. Each of these will be described below. In the present embodiment, the “body portion” refers to a portion above the waist of the wearer when the protective clothing is worn by the wearer.
　ここで、本実施形態において、着用者の身体寸法は特に限定されない。本実施形態では、説明の明瞭化のため、以下の身体寸法である着用者が例示される。すなわち、着用者は、身長が１７１ｃｍであり、上腕長が３２ｃｍであり、頸側・肩峰直線距離が１５ｃｍであり、頚窩高が１４０ｃｍであり、胸骨中点高が１２８ｃｍであり、前腋窩幅が３４ｃｍであり、肩甲骨下角間直線距離が２０ｃｍであり、大腿長が４４ｃｍであり、脛骨上縁高が４３ｃｍである。 Here, in this embodiment, the body size of the wearer is not particularly limited. In this embodiment, a wearer having the following body dimensions is exemplified for clarity of explanation. That is, the wearer had a height of 171 cm, an upper arm length of 32 cm, a neck-acromion straight line distance of 15 cm, a neck height of 140 cm, a sternum midpoint height of 128 cm, and an anterior armpit. The width is 34 cm, the straight distance between the lower corners of the scapula is 20 cm, the thigh length is 44 cm, and the tibia upper edge height is 43 cm.
　図１は、本実施形態の防護服１の模式的な正面図である。防護服１の身頃部２は、着用時に着用者の大胸筋を覆う部分Ａを備える。人体において、大胸筋の付近は、心臓や肺などの人体にとって重要な臓器が多く存在する。よって、着用者は、大胸筋および大胸筋の周囲の部位において、これらの部位以外の部位に比して、暑さをより敏感に感じやすい。本実施形態の防護服１は、正面の身頃部２において、部分Ａに、第１の生地が用いられている。これにより、着用者の大胸筋の付近の温度および湿度は、外気の温度および湿度に近づけられ得る。その結果、本実施形態の防護服１は、快適性が優れる。なお、部分Ａは、大胸筋の一部または全部を覆う部分であればよく、位置や数は特に限定されない。 FIG. 1 is a schematic front view of the protective clothing 1 of this embodiment. The body portion 2 of the protective clothing 1 has a portion A that covers the pectoral muscles of the wearer when worn. In the human body, many important organs for the human body, such as the heart and lungs, are present in the vicinity of the pectoralis major muscle. Therefore, the wearer is more sensitive to heat in the pectoral muscles and the areas around the pectoralis major muscles than in areas other than these areas. In the protective clothing 1 of the present embodiment, the first fabric is used for the portion A in the front body portion 2 . This allows the temperature and humidity in the vicinity of the wearer's pectoral muscles to approximate the temperature and humidity of the outside air. As a result, the protective clothing 1 of this embodiment has excellent comfort. It should be noted that the portion A may be any portion that covers part or all of the pectoralis major muscle, and the position and number thereof are not particularly limited.
　一方、本実施形態の防護服１は、上記部分Ａ以外の部分Ｂに、耐水圧の高い第２の生地が配置されている。第２の生地は、シート状物４を構成し、かつ、部分Ａを覆っている。防護服１は、着用者が防護服１を着脱することができるように、身頃部２の中央に、着丈方向に沿ってファスナー３が設けられている。そこで、本実施形態の防護服１は、ファスナー３を挟んで左右の２箇所に、第１の生地からなる部分Ａが設けられている。 On the other hand, in the protective clothing 1 of this embodiment, a second fabric with high water pressure resistance is arranged in the portion B other than the portion A. The second fabric forms the sheet 4 and covers the portion A. The protective clothing 1 is provided with a fastener 3 along the length direction at the center of the body part 2 so that the wearer can put on and take off the protective clothing 1. - 特許庁Therefore, in the protective clothing 1 of this embodiment, portions A made of the first fabric are provided at two locations on the left and right sides of the fastener 3 .
　部分Ａの寸法は、所望の通気性が得られるよう適宜調整され得る。本実施形態では、縦１５ｃｍ、横１５ｃｍである部分Ａが２箇所設けられている場合が例示されている。 The dimensions of portion A can be adjusted as appropriate to obtain the desired breathability. In the present embodiment, the case where two portions A each having a length of 15 cm and a width of 15 cm are provided is exemplified.
　また、防護服１は、部分Ａを覆うシート状物４が設けられている。シート状物４は、第２の生地からなる。図２は、シート状物４を説明するための模式的な正面図である。シート状物４は、部分Ａを覆う。図２には、シート状物４によって部分Ａの全体が覆われている態様が例示されている。 In addition, the protective clothing 1 is provided with a sheet-like object 4 that covers the portion A. The sheet material 4 is made of the second fabric. FIG. 2 is a schematic front view for explaining the sheet-like material 4. FIG. The sheet material 4 covers the portion A. FIG. 2 illustrates an aspect in which the entire portion A is covered with the sheet-like material 4 .
　シート状物４は、部分Ａに対して、防護服１の着丈方向の上位置に取り付けられることが好ましい（第１取付部４１）。これにより、シート状物４は、たとえば上方から水が飛散する場合に、部分Ａから防護服１内への水の侵入を防ぐことができる。シート状物４を防護服１に取り付ける方法は特に限定されない。一例を挙げると、シート状物４は、防護服１に対して、縫い付けられてもよく、接着剤等によって取り付けられてもよい。また、シート状物４は、防護服１に対して、面ファスナーや、ボタンなどによって着脱自在に取り付けられてもよい。 The sheet-like object 4 is preferably attached to the upper position of the protective clothing 1 in the length direction with respect to the portion A (first attachment portion 41). As a result, the sheet-like material 4 can prevent water from entering the protective clothing 1 from the portion A, for example, when water splashes from above. A method for attaching the sheet-like material 4 to the protective clothing 1 is not particularly limited. For example, the sheet-like material 4 may be sewn onto the protective clothing 1 or may be attached with an adhesive or the like. Moreover, the sheet-like object 4 may be detachably attached to the protective clothing 1 by a hook-and-loop fastener, a button, or the like.
　シート状物４は、部分Ａに対する防護服１の着丈方向の横位置または下位置において、部分Ａと外部とが連通するための空隙部Ｇを形成するように身頃部２に取り付けられることが好ましい（第２取付部４２）。図２では、上位置の第１取付部４１に加え、両側の横位置の第２取付部４２において、シート状物４が防護服１に取り付けられている態様が例示されている。また、図３は、シート状物４を説明するための模式的な正面図である。図３では、上位置の第１取付部４１に加え、下位置の第２取付部４２において、シート状物４が防護服１に取り付けられている態様が例示されている。これにより、シート状物４と防護服１との間に空隙部Ｇが形成される。空隙部Ｇは、部分Ａを介して、防護服１内と防護服１外との空気や着用者の汗などの水分の入れ替えを可能とする。これにより、防護服１は、優れた通気性を示しやすく、着用者の快適性が優れる。また、シート状物４が、横位置や下位置においても防護服１に取り付けられていることにより、上位置のみによってシート状物４が防護服１に取り付けられている場合と比較して、シート状物４は、着用者が作業する際に、防護服１に追随しやすく、部分Ａが外部に露出されにくい。その結果、たとえば、上方や斜め上方などから水が降る場合に、防護服１は、部分Ａをシート状物４によって保護しやすく、部分Ａから水が防護服１内に入り込むことが防がれやすい。また、シート状物４は、部分Ａにおける耐水圧性を高め得る。 The sheet-like material 4 is preferably attached to the body part 2 so as to form a gap G for communication between the part A and the outside at a lateral position or a lower position in the length direction of the protective clothing 1 with respect to the part A. (Second mounting portion 42). FIG. 2 illustrates a mode in which the sheet-like object 4 is attached to the protective clothing 1 at the second attachment portions 42 at lateral positions on both sides in addition to the first attachment portions 41 at the upper position. Moreover, FIG. 3 is a schematic front view for explaining the sheet-like material 4. As shown in FIG. FIG. 3 illustrates a mode in which the sheet-like object 4 is attached to the protective clothing 1 at the second attachment portion 42 at the lower position in addition to the first attachment portion 41 at the upper position. As a result, a gap G is formed between the sheet material 4 and the protective clothing 1 . Via the portion A, the gap G enables exchange of air and moisture such as sweat of the wearer between the inside of the protective clothing 1 and the outside of the protective clothing 1 . As a result, the protective clothing 1 tends to exhibit excellent breathability and is highly comfortable for the wearer. In addition, since the sheet-like object 4 is attached to the protective clothing 1 also in the horizontal position and the lower position, the sheet-like object 4 is attached to the protective clothing 1 only in the upper position. The object 4 easily follows the protective clothing 1 when the wearer works, and the portion A is less likely to be exposed to the outside. As a result, for example, when water falls from above or diagonally above, the protective clothing 1 easily protects the portion A with the sheet-like material 4, and water is prevented from entering the protective clothing 1 from the portion A. Cheap. In addition, the sheet-like material 4 can increase the water pressure resistance of the portion A.
（第１の生地）
　第１の生地は、通気度が３０ｃｍ3／ｃｍ2／秒以上であればよく、６０ｃｍ3／ｃｍ2／秒以上であることが好ましく、８０ｃｍ3／ｃｍ2／秒以上であることがより好ましい。一方、第１の生地の通気度は、１５０ｃｍ3／ｃｍ2／秒以下であることが好ましく、１３０ｃｍ3／ｃｍ2／秒以下であることがより好ましく、１１０ｃｍ3／ｃｍ2／秒以下であることがさらに好ましい。通気度が上述した下限値以上であることにより、防護服は、防護服を着用した作業の際における衣内の環境を、衣外の環境により近づけることができる。その結果、防護服は、快適性が優れる。また、通気度を上述した上限値以下であることにより、防護服は、粉塵や化学物質に対する防塵性をより向上させやすい。なお、本実施形態において、通気度の測定方法は特に限定されない。一例を挙げると、通気度は、通気性試験機（ＦＸ３３００、高山リード（株）製）を用いて測定することができる。 (first dough)
The air permeability of the first fabric may be 30 cm 3 /cm 2 /sec or more, preferably 60 cm 3 /cm 2 /sec or more, more preferably 80 cm 3 /cm 2 /sec or more. . On the other hand, the air permeability of the first fabric is preferably 150 cm 3 /cm 2 /s or less, more preferably 130 cm 3 /cm 2 /s or less, and 110 cm 3 /cm 2 /s or less. is more preferred. When the air permeability is equal to or higher than the above-described lower limit, the protective clothing can bring the environment inside the clothing closer to the environment outside the clothing when working in the protective clothing. As a result, the protective garment has excellent comfort. In addition, since the air permeability is equal to or less than the upper limit value described above, the protective clothing is more likely to improve dust resistance against dust and chemical substances. In addition, in this embodiment, the method of measuring air permeability is not particularly limited. For example, air permeability can be measured using a permeability tester (FX3300, manufactured by Takayama Lead Co., Ltd.).
　第１の生地は、第１のスパンボンド不織布と第１のメルトブロー不織布との積層構造を有する。 The first fabric has a laminated structure of a first spunbond nonwoven fabric and a first meltblown nonwoven fabric.
・第１のメルトブロー不織布
　防護服の防塵性と快適性の両方を優れたものとするためには、第１のメルトブロー不織布の嵩密度は、０．０５ｇ／ｃｍ3以上であることが好ましく、０．０８ｇ／ｃｍ3以上であることがより好ましく、０．１０ｇ／ｃｍ3以上であることがさらに好ましい。一方、防護服の防塵性と快適性の両方を優れたものとするためには、第１のメルトブロー不織布の嵩密度は、０．１８ｇ／ｃｍ3以下であることが好ましく、０．１６ｇ／ｃｍ3以下であることがより好ましく、０．１５ｇ／ｃｍ3以下であることがさらに好ましい。なお、本実施形態において、嵩密度は、ＪＩＳ　Ｌ　１９１３：２０１０に準じて測定した目付とＪＩＳ　Ｌ　１０８５：１９９８に準じて測定した厚さから、目付（ｇ／ｍ2）／厚さ（ｍ）から算出する。 ・First meltblown nonwoven fabric In order to make the protective clothing excellent in both dust resistance and comfort, the bulk density of the first meltblown nonwoven fabric is preferably 0.05 g/cm 3 or more, and 0 It is more preferably 0.08 g/cm 3 or more, and even more preferably 0.10 g/cm 3 or more. On the other hand, in order to make the protective clothing excellent in both dust resistance and comfort, the bulk density of the first meltblown nonwoven fabric is preferably 0.18 g/cm 3 or less, and 0.16 g/cm It is more preferably 3 or less, and even more preferably 0.15 g/cm 3 or less. In the present embodiment, the bulk density is calculated from the basis weight measured according to JIS L 1913:2010 and the thickness measured according to JIS L 1085:1998, basis weight (g/m 2 )/thickness (m). Calculate from
　防護服の防塵性と快適性の両方を優れたものとするためには、第１のメルトブロー不織布の厚みは、７０μｍ以上であることが好ましく、８０μｍ以上であることがより好ましく、９０μｍ以上であることがさらに好ましい。一方、防護服の防塵性と快適性の両方を優れたものとするためには、第１のメルトブロー不織布の厚みは、２００μｍ以下であることが好ましく、１６０μｍ以下であることがより好ましく、１４０μｍ以下であることがさらに好ましい。 In order to make the protective clothing excellent in both dust resistance and comfort, the thickness of the first melt blown nonwoven fabric is preferably 70 μm or more, more preferably 80 μm or more, and 90 μm or more. is more preferred. On the other hand, in order to make the protective clothing excellent in both dust resistance and comfort, the thickness of the first melt blown nonwoven fabric is preferably 200 μm or less, more preferably 160 μm or less, and 140 μm or less. is more preferable.
　第１のメルトブロー不織布を構成する繊維の平均単繊維径は、３μｍ以上であることが好ましく、４μｍ以上であることがより好ましく、６μｍ以上であることがさらに好ましい。また、第１のメルトブロー不織布を構成する繊維の平均単繊維径は、１５μｍ以下であることが好ましく、１０μｍ以下であることがより好ましく、８μｍ以下であることがさらに好ましい。平均単繊維径が上述した下限値以上であることにより、第１のメルトブロー不織布は、強度がより優れる。また、第１のメルトブロー不織布は、目開きのサイズが大きくなる。その結果、防護服は、第１の生地を用いた部分における通気性がより向上する。また、平均単繊維径が上述した上限値以下であることにより、第１のメルトブロー不織布は、目開きのサイズが小さくなる。その結果、防護服は、第１の生地を用いた部位における防塵性がより優れる。なお、本実施形態において、平均単繊維径は、走査電子顕微鏡（ＳＥＭ）（ＳＵ３８００、（株）日立ハイテクノロジーズ製）を用いて、倍率５００倍で１０枚撮影を行い、１枚あたり１５本の繊維直径を測定した後、平均値を算出することにより測定することができる。 The average single fiber diameter of the fibers constituting the first meltblown nonwoven fabric is preferably 3 µm or more, more preferably 4 µm or more, and even more preferably 6 µm or more. The average single fiber diameter of the fibers constituting the first melt blown nonwoven fabric is preferably 15 μm or less, more preferably 10 μm or less, and even more preferably 8 μm or less. When the average single fiber diameter is equal to or greater than the lower limit value described above, the strength of the first melt blown nonwoven fabric is more excellent. In addition, the first meltblown nonwoven fabric has a large opening size. As a result, the protective clothing has improved breathability in the portion where the first fabric is used. In addition, since the average single fiber diameter is equal to or less than the above upper limit, the opening size of the first melt blown nonwoven fabric is small. As a result, the protective clothing has better dust resistance in the areas where the first fabric is used. In the present embodiment, the average single fiber diameter is determined by taking 10 images at a magnification of 500 using a scanning electron microscope (SEM) (SU3800, manufactured by Hitachi High-Technologies Corporation) and measuring 15 fibers per image. It can be measured by calculating the average value after measuring the fiber diameter.
　第１のメルトブロー不織布を構成する繊維の素材は特に限定されない。一例を挙げると、繊維の素材は、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、ポリ乳酸等のポリエステル、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、フッ素系樹脂、およびこれらの混合物などである。これらの中でも、繊維の素材は、生地の生産性や、風合いが優れたものとなる観点から、ポリオレフィン系樹脂を主成分とすることが好ましい。また、ポリオレフィン系樹脂は、エレクトレット加工によって防塵性が向上しやすい点から、ポリプロピレンであることが好ましい。本実施形態において、第１のメルトブロー不織布がポリオレフィン系樹脂を主成分とするとは、第１のメルトブロー不織布がポリオレフィン系樹脂を、第１のメルトブロー不織布の全体に対して、８０質量％以上となるよう含有することをいう。第１のメルトブロー不織布は、ポリオレフィン系樹脂を、第１のメルトブロー不織布の全体に対して、９０質量％以上となるよう含有することが好ましく、ポリオレフィン系樹脂のみからなることがより好ましい。なお、メルトブロー不織布層がポリオレフィン系樹脂のみからなる場合、本実施形態の効果を損なわない範囲において、メルトブロー不織布は、ヒンダードアミン等の添加剤を含有してもよい。 The material of the fibers constituting the first meltblown nonwoven fabric is not particularly limited. Examples of fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof. Among these, it is preferable that the main component of the fiber material is a polyolefin-based resin from the viewpoint of the productivity of the fabric and the texture of the fabric. Further, the polyolefin-based resin is preferably polypropylene from the viewpoint that dust resistance is likely to be improved by electret processing. In the present embodiment, the first melt-blown nonwoven fabric containing a polyolefin resin as a main component means that the first melt-blown nonwoven fabric contains a polyolefin resin in an amount of 80% by mass or more with respect to the entire first melt-blown nonwoven fabric. It means to contain. The first meltblown nonwoven fabric preferably contains 90% by mass or more of the polyolefin resin relative to the entire first meltblown nonwoven fabric, and more preferably consists of only the polyolefin resin. When the meltblown nonwoven fabric layer is made of only a polyolefin resin, the meltblown nonwoven fabric may contain an additive such as a hindered amine as long as the effects of the present embodiment are not impaired.
　第１のメルトブロー不織布は、メルトブロー法によって得ることができる。メルトブロー法は、一般に、紡糸口金から押し出された熱可塑性ポリマーを熱風噴射することにより繊維状に細繊度化し、この繊維の自己融着特性を利用して、ウェブを形成する方法である。メルトブロー法における紡糸条件は、ポリマー吐出量、ノズル温度、エア圧力等がある。これら紡糸条件が最適化されることにより、所望の繊維径を有する不織布が得られる。具体的には、第１のメルトブロー不織布に使用する繊維を生産する際に、樹脂の吐出量を少なく、吐出スピードを速く、繊維の延伸の程度を大きくすることにより、繊維を細繊度化しやすい。 The first meltblown nonwoven fabric can be obtained by a meltblowing method. The meltblowing method is generally a method in which a thermoplastic polymer extruded from a spinneret is jetted with hot air to make it finer into fibers, and a web is formed by utilizing the self-bonding properties of these fibers. Spinning conditions in the meltblowing method include polymer discharge rate, nozzle temperature, air pressure, and the like. A nonwoven fabric having a desired fiber diameter can be obtained by optimizing these spinning conditions. Specifically, when producing the fibers used in the first meltblown nonwoven fabric, it is easy to reduce the fineness of the fibers by reducing the amount of resin discharged, increasing the discharge speed, and increasing the degree of stretching of the fibers.
　第１のメルトブロー不織布は、帯電を有しているメルトブロー不織布であることが好ましい。第１のメルトブロー不織布が、帯電を有しているメルトブロー不織布であることにより、防護服は、第１の生地の高い通気度と高い防塵性との両立が可能となる。 The first meltblown nonwoven fabric is preferably an electrically charged meltblown nonwoven fabric. Since the first meltblown nonwoven fabric is an electrically charged meltblown nonwoven fabric, the protective clothing can achieve both high air permeability and high dust resistance of the first fabric.
・第１のスパンボンド不織布
　第１のスパンボンド不織布を構成する繊維の素材は、特に限定されない。一例を挙げると、繊維の素材は、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、ポリ乳酸等のポリエステル、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、フッ素系樹脂、およびこれらの混合物等である。これらの中でも、繊維の素材は、生地の生産性や、風合いが優れたものとなる観点から、ポリオレフィンであることが好ましい。 - First spunbonded nonwoven fabric The material of the fibers constituting the first spunbonded nonwoven fabric is not particularly limited. Examples of fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof. Among these, the fiber material is preferably polyolefin from the viewpoint of fabric productivity and texture.
　スパンボンド不織布とは、スパンボンド法により得られる不織布である。スパンボンド不織布の製造方法は特に限定されない。一例を挙げると、スパンボンド不織布は、ポリマー組成物を溶融し、紡糸口金から押し出して延伸し、これをコンベアベルト等の上に集積して、ウェブ状に形成した後、熱エンボス加工などの方法により繊維同士を融着させること（スパンボンド法）により得られる。 A spunbond nonwoven fabric is a nonwoven fabric obtained by the spunbond method. The method for producing the spunbond nonwoven fabric is not particularly limited. To give an example, a spunbond nonwoven fabric is produced by melting a polymer composition, extruding it from a spinneret, stretching it, stacking it on a conveyor belt or the like, forming it into a web, and then subjecting it to heat embossing or the like. It is obtained by fusing the fibers together (spunbond method).
　第１のスパンボンド不織布を構成する繊維の平均単繊維径は、１８μｍ以上であることが好ましく、１９μｍ以上であることがより好ましく、２０μｍ以上であることがさらに好ましい。また、繊維の平均単繊維径は、３０μｍ以下であることが好ましく、２８μｍ以下であることがより好ましく、２６μｍ以下であることがさらに好ましい。平均単繊維径が上述した下限値以上であることにより、第１のスパンボンド不織布は、シート強度を高めることができ、かつ、目開きのサイズが大きくなる。そのため、防護服は、第１の生地を用いた部位における通気性がより向上する。また、平均単繊維径が上述した上限値以下であることにより、第１のスパンボンド不織布は、目開きのサイズが小さくなる。そのため、防護服は、防塵性がより向上する。 The average single fiber diameter of the fibers constituting the first spunbond nonwoven fabric is preferably 18 µm or more, more preferably 19 µm or more, and even more preferably 20 µm or more. Also, the average single fiber diameter of the fibers is preferably 30 μm or less, more preferably 28 μm or less, and even more preferably 26 μm or less. When the average single fiber diameter is equal to or greater than the lower limit value described above, the first spunbond nonwoven fabric can have an increased sheet strength and a larger opening size. Therefore, the protective clothing has improved breathability in the region where the first fabric is used. In addition, since the average single fiber diameter is equal to or less than the above upper limit, the opening size of the first spunbonded nonwoven fabric is small. Therefore, the protective clothing is more dustproof.
　第１のスパンボンド不織布は、本実施形態の効果を損なわない範囲で、機能が付与されてもよい。第１のスパンボンド不織布は、たとえば、撥水、撥油、帯電防止、難燃、防菌、および防カビ等の機能が付与されてもよい。 Functions may be imparted to the first spunbond nonwoven fabric to the extent that the effects of the present embodiment are not impaired. The first spunbond nonwoven fabric may be imparted with functions such as water repellency, oil repellency, antistatic, flame retardancy, antibacterial and antifungal properties, for example.
　第１の生地全体の説明に戻り、第１の生地の製造工程において、第１のスパンボンド不織布および第１のメルトブロー不織布を積層する方法は特に限定はされない。 Returning to the description of the first fabric as a whole, the method of laminating the first spunbond nonwoven fabric and the first meltblown nonwoven fabric in the manufacturing process of the first fabric is not particularly limited.
　ここで、第１の生地は、上記のとおり、帯電を有する第１のメルトブロー不織布を備えることが好ましい。このような好適な第１の生地の製造方法では、帯電を有する第１のメルトブロー不織布と第１のスパンボンド不織布とを別個独立して製造する必要がある。別個独立して製造された帯電を有する第１のメルトブロー不織布と第１のスパンボンド不織布とは、接着剤（第１の接着剤）を用いて貼り合わせるか、または、エンボス加工により貼り合わせる必要がある。 Here, as described above, the first fabric preferably comprises the first meltblown nonwoven fabric having charge. In such a preferred method of manufacturing the first fabric, it is necessary to separately manufacture the electrically charged first meltblown nonwoven fabric and the first spunbond nonwoven fabric. The first meltblown nonwoven fabric and the first spunbond nonwoven fabric, which are separately produced and have an electrostatic charge, need to be bonded together using an adhesive (first adhesive) or bonded together by embossing. be.
　第１のメルトブロー不織布と第１のスパンボンド不織布とは、接着剤（第１の接着剤）によって接着されることが好ましい。この場合、第１のメルトブロー不織布と第１のスパンボンド不織布との層間に含まれる接着剤の含有量は、０．５ｇ／ｍ2以上であることが好ましく、１．０ｇ／ｍ2以上であることがより好ましい。また、接着剤の含有量は、５．０ｇ／ｍ2以下であることが好ましく、２．０ｇ／ｍ2以下であることがより好ましい。接着剤の含有量が上述した下限値以上であることにより、第１のスパンボンド不織布と第１のメルトブロー不織布との層間の接着力は、より優れる。その結果、防護服は、防護服を着用して着用者が作業を行う際に、層間の剥離が起こりにくい。一方、接着剤の含有量が上述した上限値以下であることにより、第１の生地は、通気性が高くなる。その結果、第１の生地は柔軟性が優れる。 The first meltblown nonwoven fabric and the first spunbond nonwoven fabric are preferably bonded with an adhesive (first adhesive). In this case, the content of the adhesive contained between the layers of the first meltblown nonwoven fabric and the first spunbond nonwoven fabric is preferably 0.5 g/m 2 or more, and is 1.0 g/m 2 or more. is more preferable. Also, the adhesive content is preferably 5.0 g/m 2 or less, more preferably 2.0 g/m 2 or less. When the content of the adhesive is equal to or higher than the above lower limit, the interlayer adhesion between the first spunbond nonwoven fabric and the first meltblown nonwoven fabric is more excellent. As a result, the protective clothing is less susceptible to delamination when the wearer works while wearing the protective clothing. On the other hand, since the content of the adhesive is equal to or less than the above upper limit value, the first fabric has high breathability. As a result, the first fabric has excellent flexibility.
　第１の生地は、さらに、第３のスパンボンド不織布を備えてもよい。この場合、第１の生地は、第１のスパンボンド不織布、第１のメルトブロー不織布および第３のスパンボンド不織布がこの順に積層されていることが好ましい。このような第１の生地を用いて、第１のスパンボンド不織布が着用者側に配置されるよう防護服を作製すると、防護服は、第１のメルトブロー不織布のさらに外側に第３のスパンボンド不織布が配置される。その結果、防護服は、第３のスパンボンド不織布により第１のメルトブロー不織布を外的な応力から保護しやすい。したがって、防護服は、第１のメルトブロー不織布の傷付きなどによる、防護服の防塵性等の性能低下が起こりにくい。さらに、このような防護服は、耐摩耗性能が優れる。なお、第３のスパンボンド不織布は、第１のスパンボンド不織布として上記したものと同様のものが用いられ得る。 The first fabric may further comprise a third spunbond nonwoven fabric. In this case, the first fabric preferably comprises a first spunbond nonwoven fabric, a first meltblown nonwoven fabric and a third spunbond nonwoven fabric laminated in this order. When such a first fabric is used to fabricate a protective garment such that the first spunbond nonwoven is positioned on the wearer's side, the protective garment will have a third spunbond nonwoven further outwardly of the first meltblown nonwoven. A nonwoven is placed. As a result, the protective garment tends to protect the first meltblown nonwoven from external stress by the third spunbond nonwoven. Therefore, the performance of the protective clothing, such as dust resistance, is less likely to deteriorate due to scratches on the first meltblown nonwoven fabric. Furthermore, such protective clothing has excellent abrasion resistance performance. The third spunbonded nonwoven fabric may be the same as the first spunbonded nonwoven fabric.
　一方、第１の生地は、第１のスパンボンド不織布および第１のメルトブロー不織布のみから構成されてもよい。この場合、第１のメルトブロー不織布は、シート状物と直接接していることが好ましい。これにより、防護服の製造コストを低減することが可能となる。メルトブロー不織布は耐摩耗性に劣り傷つきやすいため、防護服用途に用いる場合、上述したとおり、スパンボンド不織布を表面に積層したＳ／Ｍ／Ｓ構成として用いるが、シート状物でメルトブロー不織布の表面を覆うことにより、表面にメルトブロー不織布が露出するＭ／Ｓの構成とすることが可能となる。 On the other hand, the first fabric may consist of only the first spunbond nonwoven fabric and the first meltblown nonwoven fabric. In this case, the first meltblown nonwoven fabric is preferably in direct contact with the sheet material. This makes it possible to reduce the manufacturing cost of the protective clothing. Meltblown nonwoven fabrics are inferior in abrasion resistance and easily damaged, so when used for protective clothing, as described above, the spunbond nonwoven fabric is laminated on the surface and used as an S/M/S structure. By covering, it is possible to have an M/S configuration in which the melt-blown nonwoven fabric is exposed on the surface.
（第２の生地）
　本実施形態の防護服が有する第２の生地は、耐水圧の下限値が４００ｍｍＨ2Ｏ以上であればよく、７００ｍｍＨ2Ｏ以上であることが好ましく、１０００ｍｍＨ2Ｏ以上であることがより好ましい。一方、第２の生地の耐水圧の上限値は特に限定されない。一例を挙げると、第２の生地の耐水圧は、２０００ｍｍＨ2Ｏ以下であることが好ましく、１５００ｍｍＨ2Ｏ以下であることがより好ましい。耐水圧が上述した下限値以上であることにより、防護服は、優れた耐水圧性を示す。一方、耐水圧が上述した上限値以下であることにより、生地の生産性が向上することにより、防護服の生産性が向上する。なお、本実施形態において、耐水圧の測定方法は特に限定されない。本実施形態では、耐水圧は、Ｈｙｄｒｏｔｅｓｔｅｒ（ＦＸ３０００－ＩＶ、ＴＥＸＴＥＳＴ社製）を用いて、ＪＩＳ　Ｌ　１０９２：２００９低圧法の測定値を採用した。 (Second dough)
The second fabric of the protective clothing of the present embodiment may have a lower limit of water pressure resistance of 400 mmH2O or more, preferably 700 mmH2O or more, and more preferably 1000 mmH2O or more. On the other hand, the upper limit of water pressure resistance of the second fabric is not particularly limited. For example, the water pressure resistance of the second fabric is preferably 2000 mmH2O or less, more preferably 1500 mmH2O or less. Since the water pressure resistance is equal to or higher than the above lower limit value, the protective clothing exhibits excellent water pressure resistance. On the other hand, since the water pressure resistance is equal to or less than the upper limit value described above, the productivity of the fabric is improved, thereby improving the productivity of the protective clothing. In addition, in this embodiment, the method for measuring the water pressure resistance is not particularly limited. In this embodiment, the water pressure resistance is measured by the JIS L 1092:2009 low pressure method using a Hydrotester (FX3000-IV, manufactured by TEXTEST).
　第２の生地は、不織布からなることが好ましい。これにより、防護服は、生地の引張や引裂きの強度を高めることができ、より丈夫となる。また、防護服は、防塵性および柔軟性がより優れる。また、第２の生地は、不織布からなる場合において、第２のスパンボンド不織布と第２のメルトブロー不織布との積層構造を有することが好ましい。これにより、防護服は、生地の引張や引裂きの強度を高めることができ、より丈夫となる。また、防護服は、防塵性および柔軟性がより優れる。 The second fabric is preferably made of non-woven fabric. As a result, the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable. Also, the protective clothing is more dustproof and flexible. Moreover, when the second fabric is made of nonwoven fabric, it preferably has a laminated structure of the second spunbond nonwoven fabric and the second meltblown nonwoven fabric. As a result, the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable. Also, the protective clothing is more dustproof and flexible.
・第２のメルトブロー不織布
　第２のメルトブロー不織布を構成する繊維の平均単繊維径は、０．１μｍ以上であることが好ましく、０．４μｍ以上であることがより好ましく、０．８μｍ以上であることがさらに好ましい。また、第２のメルトブロー不織布を構成する繊維の平均単繊維径は、６．０μｍ以下であることが好ましく、４．０μｍ以下であることがより好ましく、３．０μｍ以下であることがさらに好ましい。平均単繊維径が上述した下限値以上であることにより、第２の生地は、引張や引裂きに対する強度が高められる。その結果、丈夫な防護服が得られる。また、平均単繊維径を上述した上限値以下とすることにより、第２のメルトブロー不織布の目開きのサイズが小さくなる。そのため、防護服は、第２の生地を用いた部分における防塵性を優れたものとすることができ、第２の生地を用いた部分における柔軟性をより優れたものとすることができる。 - Second melt-blown nonwoven fabric The average single fiber diameter of the fibers constituting the second melt-blown nonwoven fabric is preferably 0.1 µm or more, more preferably 0.4 µm or more, and 0.8 µm or more. is more preferred. The average single fiber diameter of the fibers constituting the second meltblown nonwoven fabric is preferably 6.0 μm or less, more preferably 4.0 μm or less, and even more preferably 3.0 μm or less. When the average single fiber diameter is equal to or greater than the lower limit value described above, the second fabric is enhanced in strength against tension and tearing. The result is a durable protective suit. Further, by setting the average single fiber diameter to the upper limit value or less, the opening size of the second melt-blown nonwoven fabric is reduced. Therefore, the protective clothing can have excellent dust resistance in the portion using the second fabric, and can have superior flexibility in the portion using the second fabric.
　第２のメルトブロー不織布を構成する繊維の素材は特に限定されない。一例を挙げると、繊維の素材は、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、ポリ乳酸等のポリエステル、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、フッ素系樹脂、およびこれらの混合物などである。これらの中でも、繊維の素材は、生地の生産性や、風合いが優れたものとなる観点から、ポリオレフィン系樹脂を主成分とすることが好ましい。本実施形態において、第２のメルトブロー不織布がポリオレフィン系樹脂を主成分とするとは、第２のメルトブロー不織布がポリオレフィン系樹脂を、第２のメルトブロー不織布の全体に対して、８０質量％以上となるよう含有することをいう。第２のメルトブロー不織布は、ポリオレフィン系樹脂を第２のメルトブロー不織布の全体に対して、９０質量％以上となるよう含有することが好ましく、ポリオレフィン系樹脂のみからなることがより好ましい。 The material of the fibers that make up the second meltblown nonwoven fabric is not particularly limited. Examples of fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof. Among these, it is preferable that the main component of the fiber material is a polyolefin-based resin from the viewpoint of the productivity of the fabric and the texture of the fabric. In the present embodiment, the second melt blown nonwoven fabric is mainly composed of a polyolefin resin, and the second melt blown nonwoven fabric contains a polyolefin resin in an amount of 80% by mass or more with respect to the entire second melt blown nonwoven fabric. It means to contain. The second meltblown nonwoven fabric preferably contains 90% by mass or more of the polyolefin resin with respect to the entire second meltblown nonwoven fabric, and more preferably consists of only the polyolefin resin.
　第２のメルトブロー不織布は、第１のメルトブロー不織布と同様の方法により得ることができる。 The second meltblown nonwoven fabric can be obtained in the same manner as the first meltblown nonwoven fabric.
・第２のスパンボンド不織布
　第２のスパンボンド不織布を構成する繊維の素材は、特に限定されない。一例を挙げると、繊維の素材は、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、ポリ乳酸等のポリエステル、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、フッ素系樹脂、およびこれらの混合物などである。これらの中でも、繊維の素材は、生地の生産性や、風合いが優れたものとなる観点から、ポリオレフィンであることが好ましい。 - Second spunbonded nonwoven fabric The material of the fibers constituting the second spunbonded nonwoven fabric is not particularly limited. Examples of fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof. Among these, the fiber material is preferably polyolefin from the viewpoint of fabric productivity and texture.
　第２のスパンボンド不織布を構成する繊維の平均単繊維径は、６．５μｍ以上であることが好ましく、７．５μｍ以上であることがより好ましく、８．４μｍ以上であることがさらに好ましい。また、繊維の平均単繊維径は、１１．９μｍ以下であることが好ましく、１１．２μｍ以下であることがより好ましく、１０．６μｍ以下であることがさらに好ましい。平均単繊維径が上述した下限値以上であることにより、第２のスパンボンド不織布は、生地の引張や引裂きの強度を高めることができる。そのため、より丈夫な防護服が得られる。また、平均単繊維径が上述した上限値以下であることにより、第２のスパンボンド不織布は、目開きのサイズが小さくなる。そのため、防護服は、第２の生地の防塵性がより優れ、かつ、第２の生地を用いた部分における柔軟性がより向上する。 The average single fiber diameter of the fibers constituting the second spunbond nonwoven fabric is preferably 6.5 µm or more, more preferably 7.5 µm or more, and even more preferably 8.4 µm or more. Also, the average single fiber diameter of the fibers is preferably 11.9 μm or less, more preferably 11.2 μm or less, and even more preferably 10.6 μm or less. The second spunbond nonwoven fabric having an average single fiber diameter of not less than the above-described lower limit value can increase the tensile strength and tear strength of the fabric. This results in a more robust protective garment. In addition, since the average single fiber diameter is equal to or less than the above upper limit, the opening size of the second spunbonded nonwoven fabric is small. Therefore, in the protective clothing, the dust resistance of the second fabric is superior, and the flexibility of the portion using the second fabric is further improved.
　第２のスパンボンド不織布は、本実施形態の効果を損なわない範囲で、機能が付与されてもよい。第２のスパンボンド不織布は、たとえば、撥水、撥油、帯電防止、難燃、防菌、防カビ等の機能が付与されてもよい。 Functions may be imparted to the second spunbond nonwoven fabric to the extent that the effects of the present embodiment are not impaired. The second spunbond nonwoven fabric may be imparted with functions such as water repellency, oil repellency, antistatic, flame retardancy, antibacterial and antifungal properties.
　第２の生地全体の説明に戻り、第２のスパンボンド不織布と第２のメルトブロー不織布とは、直接積層されてもよく、接着剤（第２の接着剤）によって接着されてもよい。本実施形態において、第２の生地は、中層と、中層の両表面に設けられたそれぞれの外層とを有することが好ましい。この場合、それぞれの外層は、第２のスパンボンド不織布であることが好ましく、中層は、第２のメルトブロー不織布を１層以上含む、Ｓ／Ｍ／Ｓ、Ｓ／Ｍ／Ｍ／Ｓ、Ｓ／Ｍ／Ｍ／Ｍ／Ｓ構成などを挙げることができ、耐水圧が１０００ｍｍＨ2Ｏであることが好ましい。なお、中層の数および種類は特に限定されない。第２の生地において、第２のメルトブロー不織布の含有量が、第２の生地全質量に対し、１質量％以上２０質量％以下であることが好ましく、５質量％以上１５質量％以下であることがより好ましい。一方、第２の生地における第２のスパンボンド不織布の含有量は、８０質量％より多く、９９質量％未満であることが好ましい。第２のメルトブロー不織布と第２のスパンボンド不織布の含有量を上述した範囲とすることにより、防護服は防塵性、通気性および耐水圧性がより優れる。 Returning to the description of the second fabric as a whole, the second spunbond nonwoven and the second meltblown nonwoven may be directly laminated or adhered by an adhesive (second adhesive). In this embodiment, the second fabric preferably has a middle layer and respective outer layers provided on both surfaces of the middle layer. In this case, each outer layer is preferably a second spunbond nonwoven, and the middle layer includes one or more layers of the second meltblown nonwoven, S/M/S, S/M/M/S, S/ An M/M/M/S configuration can be mentioned, and it is preferable that the water pressure resistance is 1000 mmH2O . The number and types of middle layers are not particularly limited. In the second fabric, the content of the second melt blown nonwoven fabric is preferably 1% by mass or more and 20% by mass or less, and 5% by mass or more and 15% by mass or less, relative to the total mass of the second fabric. is more preferred. On the other hand, the content of the second spunbond nonwoven fabric in the second fabric is preferably more than 80% by mass and less than 99% by mass. By setting the contents of the second meltblown nonwoven fabric and the second spunbond nonwoven fabric within the ranges described above, the protective clothing is more excellent in dust resistance, breathability and water pressure resistance.
　第２のスパンボンド不織布および第２のメルトブロー不織布が接着剤（第２の接着剤）によって接着される場合、第２のスパンボンド不織布および第２のメルトブロー不織布の層間に含まれる接着剤の含有量は、０ｇ／ｍ2を超え、０．４ｇ／ｍ2以下であることが好ましい。接着剤の含有量が、上記の上限値以下であることにより、第２の生地は、柔軟性が極めて優れる。同様の理由から、接着剤の含有量は、０．２ｇ／ｍ2以下であることがより好ましく、接着剤が使用されない場合が特に好ましい。ここで、上記のとおり、第２の生地は、防護服の部分Ｂおよびシート状物として用いられており、第２の生地には高い耐水圧性が求められる。一方、防護服の通気性は、部分Ａに配置された第１の生地により達成される。そのため、第２の生地は、第１の生地と比較して、高い通気性が要求されない。 When the second spunbond nonwoven fabric and the second meltblown nonwoven fabric are bonded with an adhesive (second adhesive), the content of the adhesive contained between the layers of the second spunbond nonwoven fabric and the second meltblown nonwoven fabric is preferably greater than 0 g/m 2 and less than or equal to 0.4 g/m 2 . Since the content of the adhesive is equal to or less than the above upper limit, the second cloth has extremely excellent flexibility. For the same reason, the adhesive content is more preferably 0.2 g/m 2 or less, and it is particularly preferred that no adhesive is used. Here, as described above, the second fabric is used as the part B of the protective clothing and the sheet material, and the second fabric is required to have high water pressure resistance. On the other hand, the breathability of the suit is achieved by the first fabric located in section A. Therefore, the second fabric does not require high breathability compared to the first fabric.
　第２のスパンボンド不織布および第２のメルトブロー不織布を積層する方法は、本実施形態の効果を損なわない限り特に限定はされない。 The method of laminating the second spunbond nonwoven fabric and the second meltblown nonwoven fabric is not particularly limited as long as it does not impair the effects of the present embodiment.
　第２の生地全体の説明に戻り、第２のメルトブロー不織布または第２のスパンボンド不織布のうち、少なくともいずれか一方のＫＥＳ法による表面粗さは、１．０μｍ以上であることが好ましく、１．６μｍ以上であることがより好ましい。また、表面粗さは、３．０μｍ以下であることが好ましく、２．８μｍ以下であることがより好ましい。表面粗さが、上記の上限値以下であることにより、第２の生地は、塵、埃などの異物が付着し難く、付着した場合に除去し易い。一方、表面粗さが、上記の下限値以上であることにより、第２の生地は、適度な滑らかさとなり、防塵性に部分的なムラが生じることを抑制できる。なお、本実施形態において、ＫＥＳ法による表面粗さは、自動風合い測定装置（ＫＥＳＦＢ－４－ＡＵＴＯ－Ａ、カトーテック（株）製）を用いて、標準加圧力：１０ｇｆ、接触子：直径０．５ｍｍピアノ線、接触長さ：５ｍｍ、移動速度：１ｍｍ／ｓｅｃ、引張張力：４００ｇという条件により測定することができる。 Returning to the description of the second fabric as a whole, it is preferable that at least one of the second meltblown nonwoven fabric and the second spunbond nonwoven fabric has a surface roughness measured by the KES method of 1.0 μm or more. It is more preferably 6 μm or more. Also, the surface roughness is preferably 3.0 μm or less, more preferably 2.8 μm or less. When the surface roughness is equal to or less than the above upper limit, foreign matter such as dust is less likely to adhere to the second cloth, and foreign matter such as dust adheres to the second cloth, and is easy to remove. On the other hand, when the surface roughness is equal to or higher than the above lower limit value, the second fabric has moderate smoothness and can suppress occurrence of partial unevenness in dust resistance. In this embodiment, the surface roughness by the KES method is measured using an automatic texture measuring device (KESFB-4-AUTO-A, manufactured by Kato Tech Co., Ltd.), standard applied pressure: 10 gf, contact: diameter 0 5 mm piano wire, contact length: 5 mm, moving speed: 1 mm/sec, tensile tension: 400 g.
　図１を再び参照し、本実施形態によれば、防護服１は、着用者の大胸筋を覆う部分Ａに、通気度の優れる第１の生地が配置されている。また、部分Ａは、シート状物４によって覆われており、シート状物４は、耐水圧の高い第２の生地を構成する。その結果、防護服１は、通気性、耐水圧性および防塵性が同時に優れる。 With reference to FIG. 1 again, according to this embodiment, the protective clothing 1 has the first fabric with excellent air permeability arranged in the portion A covering the pectoral muscles of the wearer. Further, the portion A is covered with a sheet-like material 4, and the sheet-like material 4 constitutes a second fabric having high water pressure resistance. As a result, the protective clothing 1 is excellent in air permeability, water pressure resistance and dust resistance at the same time.
　なお、本実施形態では、身頃部２のファスナー３を挟んで左右の２箇所に、第１の生地からなる部分Ａが設けられている態様について例示した。これに代えて、本実施形態の防護服は、左右いずれか一方に部分Ａが設けられてもよい。 In addition, in the present embodiment, a mode in which portions A made of the first fabric are provided at two locations on the left and right sides of the fastener 3 of the body portion 2 has been exemplified. Alternatively, the protective clothing of this embodiment may be provided with the portion A on either the left or right side.
　本実施形態の防護服１は、さらにフード５を備えてもよい。防護服１が備えるフード５は、防護服１の着用時に着用者の頭部を覆う防護服１の部分である。身頃部２とフード５とは、一体となっていることが好ましい。身頃部とフードとが別体となっている防護服は、身頃部を有する上衣とフードとを着用した際に、身頃部とフードとの間に隙間を生じやすい。この場合、隙間を防ぐために、防護服の着用時に身頃部とフードとにおいて、各々に相手方と重なる部分を多く設ける必要が生じる。このような身頃部とフードとが重なる部分は、通気性および柔軟性が低下しやすい。これに対し、身頃部２とフード５とが一体となっている防護服１は、身頃部２とフード５との間に隙間が生じず、身頃部２とフード５とに相手方と重なる部分が存在しない。そのため、防護服１は、着用時の快適性と作業性とが同時に優れたものとなり得る。フード５は、第２の生地から構成され得る。 The protective clothing 1 of this embodiment may further include a hood 5. The hood 5 provided by the protective clothing 1 is the part of the protective clothing 1 that covers the wearer's head when the protective clothing 1 is worn. Body portion 2 and hood 5 are preferably integrated. Protective clothing in which the body part and the hood are separate pieces are likely to create a gap between the body part and the hood when the jacket having the body part and the hood are worn. In this case, in order to prevent gaps, when the protective clothing is worn, the body and the hood need to be provided with a large number of portions that overlap each other. Such a portion where the body part and the hood overlap tends to deteriorate in breathability and flexibility. On the other hand, in the protective clothing 1 in which the body portion 2 and the hood 5 are integrated, there is no gap between the body portion 2 and the hood 5, and there is no overlap between the body portion 2 and the hood 5. not exist. Therefore, the protective clothing 1 can be excellent in both comfort and workability when worn. The hood 5 can be constructed from the second fabric.
　また、本実施形態の防護服１は、身頃部２を含む上衣６に加えて、下衣７を備えてもよい。上衣６と下衣７とは、一体となっていることが好ましい。上衣と下衣とが別体となっている防護服は、上衣と下衣とを着用した際に上衣と下衣との間に隙間を生じやすい。この場合、隙間を防ぐために、防護服の着用時に上衣と下衣とにおいて、各々に相手方と重なる部分を多く設ける必要が生じる。このような上衣と下衣とが重なる部分は、通気性および柔軟性が低下しやすい。これに対し、上衣６と下衣７とが一体となっている防護服１は、上衣６と下衣７との間に隙間が生じず、上衣６と下衣７とに相手方と重なる部分が存在しない。そのため、防護服１は、着用時の快適性と作業性とが同時に優れたものとなり得る。 In addition, the protective clothing 1 of this embodiment may include a lower garment 7 in addition to the upper garment 6 including the body portion 2 . It is preferable that the upper garment 6 and the lower garment 7 be integrated. Protective clothing in which the upper and lower garments are separate pieces is likely to create a gap between the upper and lower garments when the upper and lower garments are worn. In this case, in order to prevent gaps, when the protective clothing is worn, it is necessary to provide a large amount of overlap between the outer garment and the lower garment. Breathability and flexibility are likely to be reduced in such a portion where the upper garment and the lower garment overlap. On the other hand, in the protective clothing 1 in which the upper garment 6 and the lower garment 7 are integrated, there is no gap between the upper garment 6 and the lower garment 7, and the upper garment 6 and the lower garment 7 overlap each other. not exist. Therefore, the protective clothing 1 can be excellent in both comfort and workability when worn.
　下衣７は、第２の生地から主に構成され得る。本実施形態の防護服１は、部分Ａに関連して上記したとおり、下衣７の一部に第１の生地からなる部分Ａおよび部分Ａを覆うシート状物が設けられてもよい。たとえば、部分Ａは、下衣７の腰周部などに設けられてもよい。これにより、防護服１は、腰周部における通気性を向上させつつ、耐水圧性を高く維持することができる。 The lower garment 7 can be mainly composed of the second fabric. In the protective clothing 1 of the present embodiment, as described above in relation to the portion A, the portion A made of the first fabric and the sheet-like material covering the portion A may be provided in a part of the lower garment 7 . For example, the portion A may be provided around the waist of the lower garment 7 or the like. As a result, the protective clothing 1 can maintain high water pressure resistance while improving breathability around the waist.
＜第２の実施形態＞
　上記第１の実施形態では、部分Ａが２か所に設けられている場合について例示した（図１参照）。これに代えて、部分Ａは、身頃部の中央に設けられてもよい。図４は、本発明の一実施形態（第２の実施形態）の防護服１ａの模式的な正面図である。図５は、本発明の一実施形態（第２の実施形態）の防護服１ａの模式的な背面図である。なお、本実施形態のうち、第１の実施形態と共通する構成については、適宜、説明が省略される。 <Second embodiment>
In the said 1st Embodiment, it illustrated about the case where the part A was provided in two places (refer FIG. 1). Alternatively, portion A may be provided in the center of the body portion. FIG. 4 is a schematic front view of protective clothing 1a of one embodiment (second embodiment) of the present invention. FIG. 5 is a schematic rear view of protective clothing 1a of one embodiment (second embodiment) of the present invention. In this embodiment, descriptions of configurations common to the first embodiment will be omitted as appropriate.
　図４～図５に示されるように、防護服１ａは、着用者が防護服１ａを着脱するためのファスナー３が、防護服１ａの背面の身頃部に着丈方向に沿って設けられており、正面の身頃部にはファスナーが設けられてない。そのため、防護服１ａは、着用者の大胸筋を覆う部分Ａに、第１の生地を設けやすい。 As shown in FIGS. 4 and 5, the protective clothing 1a has a fastener 3 for the wearer to put on and take off the protective clothing 1a. There is no zipper on the front body part. Therefore, in the protective clothing 1a, it is easy to provide the first fabric in the portion A covering the pectoral muscles of the wearer.
　本実施形態において、第１の生地が適用される部分Ａの寸法は特に限定されない。一例を挙げると、部分Ａの寸法は、縦１５ｃｍ、横３０ｃｍである。これにより、本実施形態の防護服１ａは、より優れた通気性が得られやすい。 In this embodiment, the dimensions of the portion A to which the first fabric is applied are not particularly limited. For example, the dimensions of part A are 15 cm long and 30 cm wide. As a result, the protective clothing 1a of the present embodiment is likely to have better breathability.
　なお、本実施形態では、ファスナー３が、防護服１ａの背面の身頃部２に着丈方向に沿って設けられている態様について例示した。これに代えて、防護服は、上衣６の側面に、ファスナーが設けられてもよい。 In addition, in this embodiment, the fastener 3 is provided along the length direction of the body part 2 on the back of the protective clothing 1a. Alternatively, the protective clothing may be provided with fasteners on the sides of the jacket 6 .
＜第３の実施形態＞
　上記第１の実施形態では、身頃部を有する上衣６と、好適に設けられる下衣７とが一体となった防護服について例示した（図１参照）。これに代えて、上衣と下衣とは、別体であってもよい。図６は、本発明の一実施形態（第３の実施形態）の防護服１ｂの模式的な正面図である。防護服１ｂは、上衣６ｂと下衣７ｂとが別々に設けられている。なお、本実施形態のうち、第１の実施形態と共通する構成については、適宜、説明が省略される。 <Third Embodiment>
In the above-described first embodiment, the protective clothing in which the upper garment 6 having the body portion and the suitably provided lower garment 7 are integrated is exemplified (see FIG. 1). Alternatively, the upper garment and the lower garment may be separate pieces. FIG. 6 is a schematic front view of protective clothing 1b of one embodiment (third embodiment) of the present invention. The protective clothing 1b is provided separately with an upper garment 6b and a lower garment 7b. In this embodiment, descriptions of configurations common to the first embodiment will be omitted as appropriate.
　本実施形態の防護服１ｂは、上衣６ｂにファスナーが設けられていない。そのため、着用者は、腰周部近くの開口から、上衣６ｂを着脱する。その結果、本実施形態の防護服１ｂは、着用者の大胸筋を覆う部分Ａに、第１の生地を設けやすい。 The protective clothing 1b of this embodiment has no fasteners on the jacket 6b. Therefore, the wearer puts on and takes off the jacket 6b through the opening near the waist. As a result, in the protective clothing 1b of this embodiment, it is easy to provide the first fabric in the portion A covering the pectoral muscles of the wearer.
　本実施形態において、第１の生地が適用される部分Ａの寸法は特に限定されない。一例を挙げると、部分Ａの寸法は、縦１５ｃｍ、横３０ｃｍである。これにより、防護服１ｂは、より優れた通気性が得られやすい。
In this embodiment, the dimensions of the portion A to which the first fabric is applied are not particularly limited. For example, the dimensions of part A are 15 cm long and 30 cm wide. As a result, the protective clothing 1b is likely to have better breathability.
　以上、本発明の一実施形態について説明した。本発明は、上記実施形態に格別限定されない。なお、上記した実施形態は、以下の構成を有する発明を主に説明するものである。 An embodiment of the present invention has been described above. The present invention is not particularly limited to the above embodiments. It should be noted that the above-described embodiment mainly describes an invention having the following configuration.
　上記課題を解決する本発明には、以下の構成が主に含まれる。 The present invention for solving the above problems mainly includes the following configurations.
　（１）身頃部を備える防護服であり、前記身頃部は、着用時に着用者の大胸筋を覆う部分Ａを備え、前記身頃部に取り付けられ、前記部分Ａを覆うシート状物を有し、前記シート状物は、前記部分Ａに対する、前記防護服の着丈方向の上位置に取り付けられており、前記防護服は、通気度が３０ｃｍ3／ｃｍ2／秒以上である第１の生地と、耐水圧が４００ｍｍＨ2Ｏ以上である第２の生地と、を有し、前記第１の生地は、前記部分Ａに配置され、かつ、第１のスパンボンド不織布と第１のメルトブロー不織布との積層構造を有し、前記第２の生地は、前記シート状物を構成し、前記防護服の部分Ａ以外の部分に配置されている、防護服。 (1) Protective clothing comprising a body portion, the body portion having a portion A that covers the pectoralis major muscle of the wearer when worn, and a sheet-like object attached to the body portion and covering the portion A. , the sheet-like object is attached to a position above the portion A in the length direction of the protective clothing, and the protective clothing includes a first fabric having an air permeability of 30 cm 3 /cm 2 /second or more. , a second fabric having a water pressure resistance of 400 mmH 2 O or more, the first fabric being disposed in the portion A, and the first spunbond nonwoven fabric and the first meltblown nonwoven fabric Protective clothing having a laminated structure, wherein the second fabric constitutes the sheet-like material and is arranged in a portion other than the portion A of the protective clothing.
　このような構成によれば、防護服は、着用者の大胸筋を覆う部分Ａに、通気度の優れる第１の生地が配置されている。また、部分Ａは、シート状物によって覆われており、シート状物は、耐水圧の高い第２の生地を構成する。その結果、防護服は、通気性、耐水圧性および防塵性が同時に優れる。 According to such a configuration, the protective clothing has a first fabric with excellent air permeability in the portion A covering the wearer's pectoral muscles. Further, the portion A is covered with a sheet-like material, and the sheet-like material constitutes a second cloth having high water pressure resistance. As a result, the protective clothing is simultaneously excellent in breathability, water pressure resistance and dust resistance.
　（２）前記シート状物は、前記部分Ａの全体を覆い、かつ、前記部分Ａに対する、前記防護服の着丈方向の上位置において、前記身頃部に取り付けられた第１取付部と、前記部分Ａに対する、前記防護服の着丈方向の横位置または下位置において、前記部分Ａと外部とが連通するための空隙部を形成するように前記身頃部に取り付けられた第２取付部と、を有する、（１）記載の防護服。 (2) The sheet-like object covers the entire portion A and is attached to the body portion at a position above the portion A in the length direction of the protective clothing, and the portion a second attachment part attached to the body part so as to form a gap for communication between the part A and the outside at a lateral position or a lower position in the length direction of the protective clothing with respect to A. , (1).
　このような構成によれば、シート状物は、部分Ａの上位置において身頃部に取り付けられている。そのため、たとえば、上方や斜め上方などから水が降る場合に、防護服は、部分Ａをシート状物によって保護しやすく、部分Ａから水が防護服内に入り込むことが防がれやすい。また、シート状物は、空隙部を形成するよう身頃部に取り付けられている。そのため、防護服は、通気性が確保されやすい。 According to such a configuration, the sheet-like material is attached to the body portion at the upper position of the portion A. Therefore, for example, when water falls from above or diagonally above, the protective clothing easily protects the portion A with a sheet-like material, and easily prevents water from entering the protective clothing from the portion A. Also, the sheet-like material is attached to the body part so as to form a gap. Therefore, the protective clothing is easy to ensure breathability.
　（３）前記第１のメルトブロー不織布の嵩密度は、０．０５～０．１８ｇ／ｃｍ3であり、前記第１のメルトブロー不織布の厚みは、７０～２００μｍであり、前記第１のメルトブロー不織布は、帯電を有するメルトブロー不織布であり、前記第１のスパンボンド不織布と前記第１のメルトブロー不織布とは、接着剤によって接着され、前記接着剤の含有量は、０．５～５．０ｇ／ｍ2である、（１）または（２）記載の防護服。 (3) The bulk density of the first melt-blown nonwoven fabric is 0.05 to 0.18 g/cm 3 , the thickness of the first melt-blown nonwoven fabric is 70 to 200 μm, and the first melt-blown nonwoven fabric is , a meltblown nonwoven fabric having an electrostatic charge, wherein the first spunbond nonwoven fabric and the first meltblown nonwoven fabric are bonded by an adhesive, and the content of the adhesive is 0.5-5.0g/m 2 ; The protective clothing according to (1) or (2).
　このような構成によれば、防護服は、優れた通気性と防塵性とを両立させやすい。また、防護服は、柔軟性が優れ、かつ、第１の生地が層間剥離しにくい。 With such a configuration, the protective clothing can easily achieve both excellent breathability and dust resistance. In addition, the protective clothing has excellent flexibility, and the first fabric is resistant to delamination.
　（４）前記第１の生地は、前記第１のスパンボンド不織布および前記第１のメルトブロー不織布のみから構成されており、前記第１のメルトブロー不織布は、前記シート状物と直接接している、（１）～（３）のいずれかに記載の防護服。 (4) The first fabric is composed only of the first spunbond nonwoven fabric and the first meltblown nonwoven fabric, and the first meltblown nonwoven fabric is in direct contact with the sheet-like material, ( Protective clothing according to any one of 1) to (3).
　このような構成によれば、防護服は、製造コストを低減することが可能となる。一般的にメルトブロー不織布は耐摩耗性に劣り傷つきやすいため、防護服用途に用いる場合、スパンボンド不織布を表面に積層したＳ／Ｍ／Ｓ構成として用いるが、シート状物でメルトブロー不織布の表面を覆うことにより、表面にメルトブロー不織布が露出するＭ／Ｓの構成とすることが可能となる。 With such a configuration, it is possible to reduce the manufacturing cost of the protective clothing. In general, meltblown nonwoven fabrics have poor wear resistance and are easily damaged, so when used for protective clothing, spunbond nonwoven fabrics are laminated on the surface and used as an S/M/S structure, but the surface of the meltblown nonwoven fabric is covered with a sheet-like material. Thereby, it is possible to have an M/S configuration in which the melt-blown nonwoven fabric is exposed on the surface.
　（５）前記第２の生地は、不織布である、（１）～（４）のいずれかに記載の防護服。 (5) The protective clothing according to any one of (1) to (4), wherein the second fabric is a non-woven fabric.
　このような構成によれば、防護服は、生地の引張や引裂きの強度を高めることができ、より丈夫となる。また、防護服は、防塵性および柔軟性がより優れる。 With such a configuration, the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable. Also, the protective clothing is more dustproof and flexible.
　（６）前記第２の生地は、第２のスパンボンド不織布と第２のメルトブロー不織布との積層構造を有する、（５）記載の防護服。 (6) The protective clothing according to (5), wherein the second fabric has a laminated structure of a second spunbond nonwoven fabric and a second meltblown nonwoven fabric.
　このような構成によれば、防護服は、生地の引張や引裂きの強度を高めることができ、より丈夫となる。また、防護服は、防塵性および柔軟性がより優れる。 With such a configuration, the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable. Also, the protective clothing is more dustproof and flexible.
　（７）前記第２のメルトブロー不織布の平均単繊維径は、０．１～６．０μｍであり、前記第２のスパンボンド不織布の平均単繊維径は、６．５～１１．９μｍであり、前記第２のメルトブロー不織布または前記第２のスパンボンド不織布のうち、少なくともいずれか一方のＫＥＳ法による表面粗さは、１．０～３．０μｍである、（６）記載の防護服。 (7) the second meltblown nonwoven fabric has an average single fiber diameter of 0.1 to 6.0 μm, and the second spunbond nonwoven fabric has an average single fiber diameter of 6.5 to 11.9 μm; The protective clothing according to (6), wherein at least one of the second meltblown nonwoven fabric and the second spunbond nonwoven fabric has a surface roughness measured by the KES method of 1.0 to 3.0 μm.
　このような構成によれば、防護服は、防塵性および通気性がより優れる。 With such a configuration, the protective clothing has better dust resistance and breathability.
　（８）前記第２の生地は、中層と、前記中層の両表面に設けられたそれぞれの外層とを有し、それぞれの前記外層は、第２のスパンボンド不織布であり、前記中層は、第２のメルトブロー不織布を含み、耐水圧が１０００ｍｍＨ2Ｏ以上である、（７）記載の防護服。 (8) The second fabric has a middle layer and outer layers provided on both surfaces of the middle layer, each of the outer layers being a second spunbond nonwoven fabric, and the middle layer 2 , and has a water pressure resistance of 1000 mmH2O or more.
　このような構成によれば、防護服は、防塵性、通気性および耐水圧性がより優れる。 With such a configuration, the protective clothing has better dust resistance, breathability, and water pressure resistance.
　以下、実施例により本発明をより具体的に説明する。本発明は、これら実施例に何ら限定されない。 The present invention will be described in more detail below with reference to examples. The present invention is by no means limited to these examples.
［測定方法］
（１）厚み
　生地を、ミクロトームを用いて、生地の面と垂直な面で切断した。生地の切断面を、日立製作所製電界放射型走査電子顕微鏡（ＦＥ－ＳＥＭ）Ｓ－８００を用いて、１５０倍で撮影した。この時、撮影により得られる画像の長手方向が、画像に写る生地の厚み方向と略垂直となるようにした。図７は、生地の断面のＳＥＭ画像視野の概念図である。図７を参照し、生地を構成する各層の厚みの測定方法を説明する。図７のＳＥＭ画像視野の概念図には、スパンボンド不織布層８１とメルトブロー不織布層８２とから構成される生地の切断面および背景８３が写っている。まず、ＳＥＭ画像の長手方向に垂直であって、かつ、ＳＥＭ画像の長手方向の幅を均等に６分割する分割線８４を５本、ＳＥＭ画像に書き込んだ。スパンボンド不織布層と重なっている各分割線（スパンボンド不織布層と重なっている分割線の一例が、図７では符号８５で示されている）の長さを測定した。また、メルトブロー不織布層と重なっている各分割線（メルトブロー不織布層と重なっている分割線の一例が、図７では符号８６で示されている）の長さも測定した。このとき、上記の分割線の長さは、分割線の長さの単位をμｍとした際の小数点第一位まで読み込み、小数点第一位を四捨五入した値とした。上記の測定を、生地の断面の異なる部位を撮影した１０個のＳＥＭ画像について行い、得られたスパンボンド不織布層と重なっている分割線の長さの測定値５０個の平均値をスパンボンド不織布層の厚みとした。また、得られたメルトブロー不織布層と重なっている分割線の長さの測定値５０個の平均値をメルトブロー不織布層の厚みとした。ここで、ＳＥＭ画像のスパンボンド不織布層とメルトブロー不織布層との境界に空洞に見える部位８７（すなわち、繊維が写っていない部位）が観察され、この空洞に見える部位と分割線とが重なる場合には、この空洞に見える部位はメルトブロー不織布層の一部として、メルトブロー不織布層と重なっている分割線の長さおよびスパンボンド不織布層と重なっている分割線の長さを測定した。すなわち、図７に示された一例では、符号８９で示されるものがメルトブロー不織布層と重なっている分割線８４の長さであり、符号８８で示されるものがスパンボンド不織布層と重なっている分割線８４の長さである。なお、生地が、さらに、スパンボンド不織布層を備える場合には、そのスパンボンド不織布層の厚みは、上記のスパンボンド不織布層の厚みの測定方法と同様の測定方法にて測定した。 [Measuring method]
(1) Thickness The fabric was cut in a plane perpendicular to the surface of the fabric using a microtome. The cut surface of the fabric was photographed at 150 times using a field emission scanning electron microscope (FE-SEM) S-800 manufactured by Hitachi. At this time, the longitudinal direction of the image obtained by photographing was set to be substantially perpendicular to the thickness direction of the fabric reflected in the image. FIG. 7 is a conceptual diagram of an SEM image field of view of a cross section of fabric. A method for measuring the thickness of each layer constituting the fabric will be described with reference to FIG. The schematic view of the SEM image field of FIG. 7 shows a cut surface of the fabric composed of the spunbond nonwoven layer 81 and the meltblown nonwoven layer 82 and the background 83 . First, five dividing lines 84, which are perpendicular to the longitudinal direction of the SEM image and equally divide the width of the SEM image in the longitudinal direction into six, were written in the SEM image. The length of each parting line overlapping the spunbond nonwoven layer (an example of the parting line overlapping the spunbond nonwoven layer is shown at 85 in FIG. 7) was measured. The length of each parting line overlapping the meltblown nonwoven fabric layer (an example of the parting line overlapping the meltblown nonwoven fabric layer is indicated by reference numeral 86 in FIG. 7) was also measured. At this time, the length of the parting line was read to the first decimal place when the unit of the length of the parting line was μm, and was rounded off to the first decimal place. The above measurement is performed on 10 SEM images of different parts of the cross section of the fabric, and the average value of 50 measured values of the length of the parting line overlapping the spunbond nonwoven fabric layer is the spunbond nonwoven fabric. It is the thickness of the layer. The thickness of the melt-blown nonwoven fabric layer was defined as the average value of 50 measurement values of the length of the parting lines overlapping the melt-blown nonwoven fabric layer. Here, a site 87 that looks like a cavity (that is, a site where no fibers are shown) is observed at the boundary between the spunbond nonwoven fabric layer and the meltblown nonwoven fabric layer in the SEM image, and when the site that looks like a cavity and the parting line overlap , assuming that this hollow portion was part of the meltblown nonwoven fabric layer, the length of the parting line overlapping the meltblown nonwoven fabric layer and the length of the parting line overlapping the spunbond nonwoven fabric layer were measured. That is, in one example shown in FIG. 7, what is indicated at 89 is the length of the split line 84 overlapping the meltblown nonwoven layer, and what is indicated at 88 is the length of the split line overlapping the spunbond nonwoven layer. is the length of line 84; When the fabric further comprises a spunbond nonwoven fabric layer, the thickness of the spunbond nonwoven fabric layer was measured by the same measuring method as that for measuring the thickness of the spunbond nonwoven fabric layer.
（２）平均繊維径
　生地について、（１）厚みに関して上記した手法と同様にして得られた生地の切断面を、日立製作所製電界放射型走査電子顕微鏡（ＦＥ－ＳＥＭ）Ｓ－８００を用いて、３００倍と２０００倍との倍率で撮影した。それらの画像を本装置に付属する画像解析ソフトに取り込んだ。その際、繊維径が１０μｍ以上の繊維については３００倍の倍率で測定したＳＥＭ画像を用いて、その繊維径を測定し、繊維径が１０μｍ未満の繊維については２０００倍の倍率で測定したＳＥＭ画像を用いて、その繊維径を測定した。具体的には、ＳＥＭ画像に写ったスパンボンド不織布層から、このスパンボンド不織布層を構成する繊維を無作為に１５本選定し、これらの繊維の繊維径を測定した。そして、得られた１５個の測定値の平均をスパンボンド不織布層を構成する繊維の平均繊維径とした。また、ＳＥＭ画像に写ったメルトブロー不織布層から、このメルトブロー不織布層を構成する繊維を無作為に１５本選定し、これらの繊維の繊維径を測定した。そして、得られた１５個の測定値の平均をメルトブロー不織布層を構成する繊維の平均繊維径とした。なお、繊維の繊維径は、繊維径をμｍを単位とした際の小数点第一位まで読み込み、小数点第一位を四捨五入した値とした。なお、生地が、さらに、スパンボンド不織布層を備える場合には、そのスパンボンド不織布層を構成する繊維の平均繊維径は、上記のスパンボンド不織布層を構成する繊維の平均繊維径の測定方法と同様の測定方法にて測定した。 (2) Average fiber diameter For the fabric, the cut surface of the fabric obtained in the same manner as the method described above for the thickness (1) was measured using a field emission scanning electron microscope (FE-SEM) S-800 manufactured by Hitachi. , at magnifications of 300× and 2000×. The images were imported into the image analysis software attached to the device. At that time, for fibers with a fiber diameter of 10 μm or more, the fiber diameter is measured using an SEM image measured at a magnification of 300 times, and for fibers with a fiber diameter of less than 10 μm, an SEM image measured at a magnification of 2000 times. was used to measure the fiber diameter. Specifically, 15 fibers constituting the spunbond nonwoven fabric layer were randomly selected from the spunbond nonwoven fabric layer shown in the SEM image, and the fiber diameters of these fibers were measured. Then, the average of the obtained 15 measured values was taken as the average fiber diameter of the fibers constituting the spunbond nonwoven fabric layer. In addition, 15 fibers constituting the melt-blown nonwoven fabric layer were randomly selected from the melt-blown nonwoven fabric layer shown in the SEM image, and the fiber diameters of these fibers were measured. Then, the average of the obtained 15 measured values was taken as the average fiber diameter of the fibers constituting the melt blown nonwoven fabric layer. The fiber diameter of the fiber was read to the first decimal place when the fiber diameter was expressed in μm, and was rounded off to the first decimal place. In addition, when the fabric further comprises a spunbond nonwoven fabric layer, the average fiber diameter of the fibers constituting the spunbond nonwoven fabric layer is the same as the above method for measuring the average fiber diameter of the fibers constituting the spunbond nonwoven fabric layer. It was measured by the same measuring method.
（３）嵩密度
　嵩密度の測定はマイクロメリティックスジャパン合同会社製“ＧｅｏＰｙｃ１３６０”によって行った。嵩密度の測定対象である特定の層（すなわち、スパンボンド不織布層またはメルトブロー不織布層）以外の層を、１０００番のサンドペーパーを用いて防護服用生地から取り除いた。次に、測定対象である特定の層を２ｍｍ×２ｍｍのサイズに切り出し、測定用サンプルとした。この測定用サンプルを１０枚準備し、内径１２．７ｍｍのサンプルチャンバーに測定用ビーズと交互に積層し、ビーズをサンプルチャンバーの底面から２ｃｍの位置まで充填し、測定した。測定から得られた嵩密度の結果の小数点第三位を四捨五入し、測定用サンプルの嵩密度とした。そして、上記の測定用サンプルの嵩密度の測定を３回行い。得られた３つの値の平均値を特定の層の嵩密度とした。なお、嵩密度の測定は、スパンボンド不織布層、メルトブロー不織布層それぞれについて行った。 (3) Bulk Density Bulk density was measured using “GeoPyc1360” manufactured by Micromeritics Japan LLC. Layers other than the specific layer (ie, spunbond nonwoven layer or meltblown nonwoven layer) for which bulk density was to be measured were removed from the protective garment fabric using 1000 grit sandpaper. Next, a specific layer to be measured was cut into a size of 2 mm×2 mm to obtain a sample for measurement. Ten measurement samples were prepared, and measurement beads were alternately stacked in a sample chamber having an inner diameter of 12.7 mm. The bulk density obtained from the measurement was rounded off to the third decimal place and used as the bulk density of the measurement sample. Then, the measurement of the bulk density of the measurement sample was performed three times. The average value of the three obtained values was taken as the bulk density of the specific layer. The bulk density was measured for each of the spunbond nonwoven fabric layer and the meltblown nonwoven fabric layer.
（４）通気度
　生地の通気度の測定はＪＩＳ　Ｌ　１９１３－２０１０　フラジール形法に基づき、１５ｃｍ×１５ｃｍの大きさの試験片を通過する空気量とした。得られた通過する空気量の３回測定の平均値を通気度とした。 (4) Air permeability The air permeability of the fabric was measured based on JIS L 1913-2010 Frazier method, and the amount of air passing through a 15 cm x 15 cm test piece. The obtained average value of three measurements of the amount of passing air was taken as the air permeability.
（５）耐水圧
　ＪＩＳ　Ｌ　１０９２（２００９）で規定されるＡ法（低圧法）に基づき測定し、５箇所の平均値を値とし、単位をｍｍＨ2Ｏで表した。 (5) Water pressure resistance Measured based on the A method (low pressure method) specified in JIS L 1092 (2009), the average value of five points was taken as the value, and the unit was expressed in mmH2O .
（６）接着剤の含有量
　１００ｍｍ角の生地の試験片を５枚用意し、それらを温度２０℃、湿度６５％ＲＨの雰囲気中にて２４ｈｒ静置し、その後に、５枚の試験片それぞれの初期質量（ｇ）を測定した。次に、３００ｍｌ容量の容器に充填された、温度５０℃に設定された２００ｍｌの溶媒（キシレン）に５枚の試験片を６時間含浸させた。次いで、再度、５枚の試験片を３００ｍｌ容量の容器に充填された、温度５０℃に設定された２００ｍｌの溶媒（キシレン）に６時間浸漬させた。続いて、５枚の試験片を温度１４０℃雰囲気中にて２ｈｒ静置した。続いて、５枚の試験片を温度２０℃、湿度６５％ＲＨの雰囲気中にて２４ｈｒ静置し、その後に、５枚の試験片それぞれの質量（ｇ）を測定し、下記式より各試験片の接着剤の含有量（ｇ／ｍ2）を計算し、試験片５枚の平均値を接着剤の含有量とした。
　　接着剤の含有量（ｇ／ｍ2）＝（初期質量（ｇ）－接着剤を除去した質量（ｇ））／０．０１ (6) Adhesive content Five test pieces of 100 mm square fabric were prepared, and left to stand for 24 hours in an atmosphere with a temperature of 20 ° C. and a humidity of 65% RH, and then each of the five test pieces The initial mass (g) of was measured. Next, the five test pieces were immersed in 200 ml of solvent (xylene) set at a temperature of 50° C. and filled in a 300 ml container for 6 hours. Then, the five test pieces were again immersed in 200 ml of solvent (xylene) set at a temperature of 50° C. and packed in a 300 ml container for 6 hours. Subsequently, the five test pieces were allowed to stand in an atmosphere at a temperature of 140° C. for 2 hours. Subsequently, the five test pieces were left to stand for 24 hours in an atmosphere with a temperature of 20 ° C. and a humidity of 65% RH, and then the mass (g) of each of the five test pieces was measured. The adhesive content (g/m 2 ) of the piece was calculated, and the average value of five test pieces was taken as the adhesive content.
Adhesive content (g/m 2 ) = (initial mass (g) - mass after removing adhesive (g))/0.01
（７）快適性試験方法
　モニターが防護服（Ｍサイズ）を着用した後、踏み台昇降をした後の衣服内の温湿度および快適性（蒸し暑さ）をモニターが評価した。上記快適性試験を、同じ防護服に対して３名のモニターが実施し、３名のモニターの評価のうち、最も多い試験結果を最終試験結果として採用した。快適性試験に参加した３名のモニターは男性であり、体重は５８～６４ｋｇ、身長は１６８～１７４ｃｍであった。
＜試験方法＞
　各モニターには、以下のＳ１、Ｓ２、Ｓ３、Ｓ４、Ｓ５の順に沿って快適性試験を実施させた。
　　Ｓ１：パンツ（ポリエステル８８％、ポリウレタン１２％）と綿のくるぶし靴下のみを着る。
　　Ｓ２：左胸の大胸筋周辺に温湿度センサを貼り付け、防護服を着用し、スニーカーを履く。
（温湿度センサ：ＳＨＡ－３１５１、Ｔ＆Ｄ社製、データロガー：おんどとりＴＲ－７２ｗｆ、Ｔ＆Ｄ社製）
　　Ｓ３：２０℃５０％ＲＨ雰囲気の部屋にて３０分間着席し、静止する。
　　Ｓ４：３０℃５０％ＲＨ雰囲気の部屋へ移動し、同雰囲気にて踏み台昇降を２０分間行う。
（踏み台昇降間隔：１５歩／１０秒、踏み台高さ２０ｃｍ）
　　Ｓ５：２０分後の衣服内の温湿度を測定し、快適性を評価する。
＜評価基準＞
　各モニターは、次の基準に沿って快適性を評価した。
　　Ａ：蒸れがなく、快適性がとても優れていた。
　　Ｂ：蒸れが少なく、快適性が優れていた。
　　Ｃ：蒸れが多く、快適性が劣った。 (7) Comfort test method After the monitor wore the protective clothing (M size), the monitor evaluated the temperature, humidity and comfort (humidity) inside the clothing after going up and down the step. The above comfort test was conducted on the same protective clothing by 3 monitors, and the most common test result among the 3 monitors' evaluations was adopted as the final test result. The three monitors who participated in the comfort test were male, weighed 58-64 kg, and were 168-174 cm tall.
<Test method>
Each monitor was subjected to a comfort test in the order of S1, S2, S3, S4, and S5 below.
S1: Wear only pants (88% polyester, 12% polyurethane) and cotton ankle socks.
S2: Attach a temperature/humidity sensor around the pectoralis major muscle of the left chest, wear protective clothing, and wear sneakers.
(Temperature and humidity sensor: SHA-3151, manufactured by T&D, data logger: T&D TR-72wf, manufactured by T&D)
S3: Sit in a room with an atmosphere of 20°C and 50% RH for 30 minutes and remain still.
S4: Move to a room with an atmosphere of 30° C. and 50% RH, and perform stepping up and down for 20 minutes in the same atmosphere.
(stepping step interval: 15 steps/10 seconds, stepping height 20cm)
S5: Measure the temperature and humidity inside the clothes after 20 minutes, and evaluate the comfort.
<Evaluation Criteria>
Each monitor evaluated comfort according to the following criteria.
A: There was no stuffiness, and comfort was very excellent.
B: Less stuffiness and excellent comfort.
C: A lot of stuffiness and poor comfort.
（実施例１）
　２枚のポリプロピレン製のスパンボンド不織布（目付２０ｇ／ｍ2）と、１枚の帯電を有しているポリプロピレン製のメルトブロー不織布（目付１５ｇ／ｍ2、嵩密度０．１４ｇ／ｃｍ3、厚さ１０９μｍ、繊維径６μｍ）を用意した。次いで、スパンボンド不織布、メルトブロー不織布およびスパンボンド不織布がこの順に積層されているとともに、各層間が接着された第１の生地を用意した。ここで、第１の生地の各層間の接着は、合成ゴムを主成分とするホットメルト接着剤を、スプレーを用いて各層間に配置して行った。第１の生地の各層間における、ホットメルト接着剤の含有量は、各層間当たり２．０ｇ／ｍ2であった。 (Example 1)
Two sheets of polypropylene spunbond nonwoven fabric (basis weight: 20 g/m 2 ) and one electrically charged polypropylene meltblown nonwoven fabric (basis weight: 15 g/m 2 , bulk density: 0.14 g/cm 3 , thickness: 109 μm, fiber diameter 6 μm). Next, a first fabric was prepared in which a spunbond nonwoven fabric, a meltblown nonwoven fabric, and a spunbond nonwoven fabric were laminated in this order and the respective layers were bonded. Here, the adhesion between the layers of the first fabric was performed by disposing a hot-melt adhesive containing synthetic rubber as a main component between the layers using a spray. The content of hot melt adhesive in each layer of the first fabric was 2.0 g/m 2 per layer.
　第１の生地の通気度は９４ｃｍ3／ｃｍ2／秒であり、耐水圧は２０２ｍｍＨ2Ｏであった。 The air permeability of the first fabric was 94 cm 3 /cm 2 /sec, and the water pressure resistance was 202 mmH 2 O.
　次に、ポリプロピレン製のスパンボンド不織布（目付２７ｇ／ｍ2）の一方の面上に、ポリプロピレン製のメルトブロー不織布（目付１１ｇ／ｍ2、繊維径１μｍ）を直接形成し積層体を得た。次に、この積層体のポリプロピレン製のメルトブロー不織布の側の面上にポリプロピレン製のスパンボンド不織布（目付２７ｇ／ｍ2）を直接形成し第２の生地を得た。第２の生地の各層間における、ホットメルト接着剤の含有量は、各層間当たり０ｇ／ｍ2であった。 Next, a polypropylene melt-blown nonwoven fabric (11 g/m 2 basis weight, 1 µm fiber diameter) was directly formed on one side of the polypropylene spunbond nonwoven basis (27 g/m 2 basis weight) to obtain a laminate. Next, a polypropylene spunbond nonwoven fabric (basis weight: 27 g/m 2 ) was directly formed on the polypropylene meltblown nonwoven fabric side of this laminate to obtain a second fabric. The content of hot melt adhesive in each layer of the second fabric was 0 g/m 2 per layer.
　第２の生地の通気度は８ｃｍ3／ｃｍ2／秒であり、耐水圧は１０７０ｍｍＨ2Ｏであった。 The air permeability of the second fabric was 8 cm 3 /cm 2 /sec, and the water pressure resistance was 1070 mmH 2 O.
　その後、得られた第１の生地および得られた第２の生地から、防護服を構成する複数の領域に対応する複数のパーツを切り抜いた。次いで、フードを有するつなぎ型の防護服の形態とするべく、これらの複数のパーツをミシンにて縫合した。得られた防護服を実施例１の防護服とした。 After that, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out from the obtained first fabric and the obtained second fabric. These multiple parts were then sewn together with a sewing machine to form a coverall type protective clothing with a hood. The obtained protective clothing was used as the protective clothing of Example 1.
　得られた防護服の概念図を図１および図２に示す。防護服１は一対の袖部分、身頃部２、下衣６およびフード５を備えている。そして、前面の身頃部（前身頃部分）は、着用者の大胸筋を覆う部分Ａを備えている。なお、部分Ａの寸法は、縦１５ｃｍ、横１５ｃｍであり、ファスナー３を挟んで左右に２箇所備えている。部分Ａは、シート状物に覆われており、シート状物の寸法は、縦２０ｃｍ、横２０ｃｍである。ここで、部分Ａは第１の生地で構成されており、部分Ａを除くその他の部位およびシート状物は第２の生地で構成されている。 　Figures 1 and 2 show the conceptual diagrams of the obtained protective clothing. The protective clothing 1 has a pair of sleeve portions, a body portion 2, a lower garment 6 and a hood 5. - 特許庁The front body portion (front body portion) has a portion A that covers the wearer's pectoral muscles. In addition, the dimensions of the portion A are 15 cm long and 15 cm wide, and are provided at two locations on the left and right sides of the fastener 3 . The portion A is covered with a sheet-like material, and the size of the sheet-like material is 20 cm long and 20 cm wide. Here, the portion A is made of the first fabric, and the other portions and the sheet material other than the portion A are made of the second fabric.
　実施例１の防護服１は、前面の身頃部（前身頃部分）において、第１の生地と第２の生地とが縫製された縫製部を有し、さらに、シート状物の上位置の第１取付部と両側の横位置の第２取付部は第２の生地と第２の生地とが縫製され、第１取付部は長さ２０ｃｍを縫製し、第２取付部は長さ５ｃｍを縫製した縫製部を有する。 The protective clothing 1 of Example 1 has a sewn part in which the first fabric and the second fabric are sewn in the front body part (front body part), and furthermore, the first fabric is sewn on the upper part of the sheet-like article. 2nd fabric and 2nd fabric are sewn to the 1st attachment part and the 2nd attachment part of the horizontal position on both sides, the 1st attachment part sews 20 cm in length, and the 2nd attachment part sews 5 cm in length. It has a sewn part.
　次に、実施例１の防護服１を用いて３名のモニターが快適性試験を実施した。用いた第１の生地の特性および用いた第２の生地の特性ならびに評価結果は表１に示したとおりであった。 Next, three monitors conducted a comfort test using the protective clothing 1 of Example 1. Table 1 shows the properties of the first fabric used, the properties of the second fabric used, and the evaluation results.
（比較例１）
　実施例１の防護服が有する第２の生地と同様の生地を、第２の生地として用意した。その後、得られた第２の生地から、防護服を構成する複数の領域に対応する複数のパーツを切り抜いた。次いで、フードを有するつなぎ型の防護服の形態とするべく、これらの複数のパーツをミシンにて縫合した。得られた防護服を比較例１の防護服とした。 (Comparative example 1)
A fabric similar to the second fabric of the protective clothing of Example 1 was prepared as the second fabric. After that, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out from the obtained second fabric. These multiple parts were then sewn together with a sewing machine to form a coverall type protective clothing with a hood. The obtained protective clothing was used as the protective clothing of Comparative Example 1.
　得られた防護服の概念図を図８に示す。すなわち、図８は、比較例１の防護服９の前面の概念図である。防護服９は一対の袖部分９１、身頃部９２、下衣９３およびフード９４を備えている。ここで、袖部分９１、身頃部９２、下衣９３、およびフード９４は第２の生地で構成されている。すなわち、比較例１の防護服９は、第２の生地のみから構成されている。 A conceptual diagram of the obtained protective clothing is shown in Fig. 8. That is, FIG. 8 is a conceptual diagram of the front surface of the protective clothing 9 of Comparative Example 1. FIG. Protective clothing 9 includes a pair of sleeve portions 91 , a body portion 92 , a lower garment 93 and a hood 94 . Here, the sleeve portion 91, the body portion 92, the lower garment 93, and the hood 94 are made of the second fabric. That is, the protective clothing 9 of Comparative Example 1 is composed only of the second fabric.
　次に、比較例１の防護服９を用いて３名のモニターが快適性試験を実施した。各部位に用いた生地の種類および評価結果は表１に示したとおりであった。 Next, three monitors conducted a comfort test using the protective clothing 9 of Comparative Example 1. Table 1 shows the type of fabric used for each part and the evaluation results.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
　表１には、通気度９４ｃｍ3／ｃｍ2／秒の第１の生地と耐水圧１０７０ｍｍＨ2Ｏの第２の生地を備えた防護服である実施例１と、第２の生地のみからなる防護服である比較例１についてまとめた。 Table 1 shows Example 1, which is a protective clothing comprising a first fabric with an air permeability of 94 cm 3 /cm 2 /sec and a second fabric with a water pressure resistance of 1070 mmH 2 O, and protective clothing consisting only of the second fabric. Comparative Example 1, which is clothing, is summarized.
　実施例１は防護服の着用時の衣服内の温度が３３℃となり、相対湿度が７７％以下となった。よって、この防護服は、着用者の快適性試験において、ＡまたはＢの判定であった。したがって、実施例１を着用した着用者は、快適であった。一方、比較例１では、防護服の着用時の衣服内が温度３４℃となり、相対湿度が８２％となった。よって、防護服は、着用者の快適性試験において、Ｃ判定であり、快適性が劣った。 In Example 1, the temperature inside the protective clothing was 33°C and the relative humidity was 77% or less when the protective clothing was worn. Therefore, this protective garment received an A or B rating in the wearer's comfort test. Therefore, the wearer wearing Example 1 was comfortable. On the other hand, in Comparative Example 1, the temperature inside the protective clothing when worn was 34° C. and the relative humidity was 82%. Therefore, the protective clothing was evaluated as C in the wearer's comfort test, indicating poor comfort.
　１、１ａ、１ｂ　防護服
　２　身頃部
　３　ファスナー
　４　シート状物
　４１　第１取付部
　４２　第２取付部
　５　フード
　６、６ｂ　上衣
　７、７ｂ　下衣
　８１　スパンボンド不織布層
　８２　メルトブロー不織布層
　８３　背景
　８４　分割線
　８５　スパンボンド不織布層と重なっている分割線の長さ
　８６　メルトブロー不織布層と重なっている分割線の長さ
　８７　空洞に見える部位
　８８　スパンボンド不織布層と重なっている分割線の長さ
　８９　メルトブロー不織布層と重なっている分割線の長さ
　９　防護服
　９１　一対の袖部分
　９２　身頃部
　９３　下衣
　９４　フード
　Ａ　着用時に着用者の大胸筋を覆う部分
　Ｂ　部分Ａ以外の部分
　Ｇ　空隙部 Reference Signs List 1, 1a, 1b Protective clothing 2 Body part 3 Fastener 4 Sheet material 41 First attachment part 42 Second attachment part 5 Hood 6, 6b Upper garment 7, 7b Lower garment 81 Spunbond nonwoven fabric layer 82 Meltblown nonwoven fabric layer 83 Background 84 Division Line 85 Length of parting line overlapping with spunbond nonwoven layer 86 Length of parting line overlapping with meltblown nonwoven layer 87 Part that appears to be hollow 88 Length of parting line overlapping with spunbond nonwoven layer 89 Meltblown nonwoven fabric Length of parting line overlapping layers 9 Protective clothing 91 Pair of sleeves 92 Body part 93 Bottom garment 94 Hood A Part covering the pectoral muscles of the wearer when worn B Parts other than part A G Gap

Claims (8)

  1. 　身頃部を備える防護服であり、
    　前記身頃部は、着用時に着用者の大胸筋を覆う部分Ａを備え、
    　前記身頃部に取り付けられ、前記部分Ａを覆うシート状物を有し、
    　前記シート状物は、前記部分Ａに対する、前記防護服の着丈方向の上位置に取り付けられており、
    　前記防護服は、通気度が３０ｃｍ3／ｃｍ2／秒以上である第１の生地と、耐水圧が４００ｍｍＨ2Ｏ以上である第２の生地と、を有し、
    　前記第１の生地は、
    　　前記部分Ａに配置され、かつ、
    　　第１のスパンボンド不織布と第１のメルトブロー不織布との積層構造を有し、
    　前記第２の生地は、
    　　前記シート状物を構成し、
    　　前記防護服の部分Ａ以外の部分に配置されている、防護服。     Protective clothing comprising a body part,
    The body portion has a portion A that covers the wearer's pectoral muscles when worn,
    Having a sheet-like object attached to the body part and covering the part A,
    The sheet-shaped object is attached to a position above the portion A in the length direction of the protective clothing,
    The protective clothing includes a first fabric having an air permeability of 30 cm 3 /cm 2 /sec or more and a second fabric having a water pressure resistance of 400 mmH 2 O or more,
    The first fabric is
    located in said portion A, and
    Having a laminated structure of a first spunbond nonwoven fabric and a first meltblown nonwoven fabric,
    The second fabric is
    Constructing the sheet-like material,
    A protective clothing arranged in a portion other than the portion A of the protective clothing.
  2. 　前記シート状物は、
    　　前記部分Ａの全体を覆い、かつ、
    　　前記部分Ａに対する、前記防護服の着丈方向の上位置において、前記身頃部に取り付けられた第１取付部と、
    　　前記部分Ａに対する、前記防護服の着丈方向の横位置または下位置において、前記部分Ａと外部とが連通するための空隙部を形成するように前記身頃部に取り付けられた第２取付部と、を有する、請求項１記載の防護服。     The sheet material is
    covering the entire portion A, and
    a first attachment portion attached to the body portion at a position above the portion A in the length direction of the protective clothing;
    a second attachment part attached to the body part so as to form a gap for communication between the part A and the outside at a lateral position or a lower position in the length direction of the protective clothing with respect to the part A; The protective garment of claim 1, comprising:
  3. 　前記第１のメルトブロー不織布の嵩密度は、０．０５～０．１８ｇ／ｃｍ3であり、
    　前記第１のメルトブロー不織布の厚みは、７０～２００μｍであり、
    　前記第１のメルトブロー不織布は、帯電を有するメルトブロー不織布であり、
    　前記第１のスパンボンド不織布と前記第１のメルトブロー不織布とは、接着剤によって接着され、
    　前記接着剤の含有量は、０．５～５．０ｇ／ｍ2である、請求項１または２記載の防護服。     The first meltblown nonwoven fabric has a bulk density of 0.05 to 0.18 g/cm 3 ,
    The thickness of the first melt blown nonwoven fabric is 70 to 200 μm,
    The first meltblown nonwoven fabric is an electrically charged meltblown nonwoven fabric,
    The first spunbond nonwoven fabric and the first meltblown nonwoven fabric are bonded with an adhesive,
    3. The protective clothing according to claim 1, wherein the content of said adhesive is 0.5-5.0 g/m 2 .
  4. 　前記第１の生地は、前記第１のスパンボンド不織布および前記第１のメルトブロー不織布のみから構成されており、
    　前記第１のメルトブロー不織布は、前記シート状物と直接接している、請求項１～３のいずれか１項に記載の防護服。     The first fabric is composed only of the first spunbond nonwoven fabric and the first meltblown nonwoven fabric,
    The protective clothing according to any one of claims 1 to 3, wherein the first meltblown nonwoven fabric is in direct contact with the sheet material.
  5. 　前記第２の生地は、不織布である、請求項１～４のいずれか１項に記載の防護服。 The protective clothing according to any one of claims 1 to 4, wherein the second fabric is a non-woven fabric.
  6. 　前記第２の生地は、第２のスパンボンド不織布と第２のメルトブロー不織布との積層構造を有する、請求項５記載の防護服。 The protective clothing according to claim 5, wherein the second fabric has a laminated structure of a second spunbond nonwoven fabric and a second meltblown nonwoven fabric.
  7. 　前記第２のメルトブロー不織布の平均単繊維径は、０．１～６．０μｍであり、
    　前記第２のスパンボンド不織布の平均単繊維径は、６．５～１１．９μｍであり、
    　前記第２のメルトブロー不織布または前記第２のスパンボンド不織布のうち、少なくともいずれか一方のＫＥＳ法による表面粗さは、１．０～３．０μｍである、請求項６記載の防護服。     The average single fiber diameter of the second melt blown nonwoven fabric is 0.1 to 6.0 μm,
    The second spunbond nonwoven fabric has an average single fiber diameter of 6.5 to 11.9 μm,
    7. The protective clothing according to claim 6, wherein at least one of the second meltblown nonwoven fabric and the second spunbond nonwoven fabric has a KES surface roughness of 1.0 to 3.0 μm.
  8. 　前記第２の生地は、中層と、前記中層の両表面に設けられたそれぞれの外層とを有し、
    　それぞれの前記外層は、第２のスパンボンド不織布であり、
    　前記中層は、第２のメルトブロー不織布を含み、耐水圧が１０００ｍｍＨ2Ｏ以上である、請求項７記載の防護服。     The second fabric has a middle layer and respective outer layers provided on both surfaces of the middle layer,
    each said outer layer being a second spunbond nonwoven;
    8. The protective clothing according to claim 7, wherein the intermediate layer includes a second meltblown nonwoven fabric and has a water pressure resistance of 1000 mmH2O or more.
PCT/JP2022/003684 2021-02-01 2022-01-31 Protective clothing WO2022163855A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001303317A (en) * 2000-04-21 2001-10-31 Uni Charm Corp Disposable outer garment
JP2003013318A (en) * 2001-06-21 2003-01-15 Knut Jaeger Ventilation system of clothing
JP2011117121A (en) * 2011-03-05 2011-06-16 Hamure Co Ltd Air-permeable working wear
JP2014009954A (en) * 2012-06-27 2014-01-20 Osao Makino Rain coat
WO2020009136A1 (en) * 2018-07-04 2020-01-09 東レ株式会社 Protective clothing
CN210353272U (en) * 2019-07-26 2020-04-21 徐文跃 Waterproof ventilative raincoat

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001303317A (en) * 2000-04-21 2001-10-31 Uni Charm Corp Disposable outer garment
JP2003013318A (en) * 2001-06-21 2003-01-15 Knut Jaeger Ventilation system of clothing
JP2011117121A (en) * 2011-03-05 2011-06-16 Hamure Co Ltd Air-permeable working wear
JP2014009954A (en) * 2012-06-27 2014-01-20 Osao Makino Rain coat
WO2020009136A1 (en) * 2018-07-04 2020-01-09 東レ株式会社 Protective clothing
CN210353272U (en) * 2019-07-26 2020-04-21 徐文跃 Waterproof ventilative raincoat

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