WO2006082920A1 - 吸湿インジケータ機能付き包装袋及び乾燥剤 - Google Patents
吸湿インジケータ機能付き包装袋及び乾燥剤 Download PDFInfo
- Publication number
- WO2006082920A1 WO2006082920A1 PCT/JP2006/301858 JP2006301858W WO2006082920A1 WO 2006082920 A1 WO2006082920 A1 WO 2006082920A1 JP 2006301858 W JP2006301858 W JP 2006301858W WO 2006082920 A1 WO2006082920 A1 WO 2006082920A1
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- WIPO (PCT)
- Prior art keywords
- film
- desiccant
- moisture absorption
- packaging material
- moisture
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D79/00—Kinds or details of packages, not otherwise provided for
- B65D79/02—Arrangements or devices for indicating incorrect storage or transport
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
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- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
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- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
- B65D81/267—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being in sheet form
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Definitions
- the present invention relates to a packaging bag with a moisture absorption indicator function and a desiccant with a moisture absorption indicator function, and more specifically, packaging bags for various articles such as foods, electronic parts, pharmaceuticals, and documents that are also desired to protect moisture.
- the packaging bag can be visually checked for moisture absorption in the bag and the moisture-proof performance of the packaging bag itself can be confirmed, and the main desiccant is a sheet or film, or a desiccant molded product.
- the present invention relates to a sheet-like, plate-like or bag-like desiccant with an indicator function for indicating the moisture absorption state of such desiccant.
- a desiccant such as silica gel or calcium chloride salt is packaged in a small bag and enclosed in a package, but the packaging workability is poor.
- Silica gel itself is a white substance, and its moisture absorption state cannot be confirmed from its appearance.
- a bag-shaped dehumidifier with a humidity indicator shown in FIG.
- This dehumidifying agent is one in which a hygroscopic sheet 1 is accommodated in a non-woven bag 4, and a hygroscopic humidity indicator 2 covered with a barrier film 3 is adhered to the hygroscopic sheet 1.
- the hygroscopic humidity indicator 2 contains salt and cobalt, and the noorious film 3 has micropores.
- the hygroscopic sheet 1 absorbs moisture
- the hygroscopic humidity indicator 2 absorbs moisture and the color is blue.
- the moisture absorbent sheet 1 is dried and regenerated, the moisture absorption state of the moisture absorbent sheet 1 can be visually confirmed by changing the color to pink force blue.
- salt ⁇ cobalt is used as a moisture absorption indicator substance.
- a desiccant with a moisture absorption indicator using a heavy metal such as cobalt is used. If it is discharged as dust and incinerated, heavy metals will be discharged into the living environment space, and there is a circumstance that the environment is avoided as much as possible, and there is a moisture absorption indicator function aimed at decobalting. Agents have been developed.
- FIG. 11 As a package having a moisture absorption function, there is a cylindrical moisture absorption container shown in FIG. 11, which is composed of a screw-type hollow container (outermost layer) 6 and an inner container (innermost layer) 7. Separately injection-molded and integrated, and the cap 8 is screwed into the hollow container 6 and closed to form a storage container.
- the inner container 7 is made of a resin composition having an indicator function indicating hygroscopicity. A mixture of synthetic zeolite 7a is used for this rosin composition, and the degree of moisture absorption is confirmed by utilizing the fact that the inner container 7 changes its color to bright yellow after moisture absorption. (For example, see Patent Document 2)
- Patent Document 1 Japanese Utility Model Publication No. 64-28934 (full description, FIG. 1)
- Patent Document 2 Japanese Patent Application Laid-Open No. 2004-331855 (full description, FIG. 1)
- the moisture absorption container of the conventional example shown in Patent Document 2 has a configuration in which the mouth of a storage container in which a force screw-in type hollow container and an inner container are integrated is closed with a cap, which is a package with an indicator function.
- the inner container in the storage container is made of a resin composition having an indicator function accompanied by a change in color tone due to moisture absorption. In this package, the moisture absorption state cannot be visually recognized effectively by an external force.
- the present invention has been made in view of the above-described problems, and a resin film having a moisture absorption indicator function and mixed with a desiccant without using heavy metals harmful to the human body is associated with moisture absorption.
- the purpose of the present invention is to provide a packaging bag with a moisture absorption indicator function that makes it possible to visually recognize the external force of the packaging bag by using indicator transparency such as letters, numbers, or patterns. is there.
- the present invention provides a moisture absorbent indicator function provided with a main desiccant layer, and a resin film mixed with a desiccant that does not use heavy metals harmful to the human body becomes transparent as it absorbs moisture.
- a desiccant with a moisture absorption indicator function that makes it possible to visually recognize moisture absorption indicator patterns such as letters, numbers, or patterns from the outside. It is for other purposes to provide.
- the present invention achieves the above-described problems, and provides a novel packaging bag with a moisture absorption indicator function and a novel desiccant with a moisture absorption indicator function.
- the packaging bag with a moisture absorption indicator function of the present invention comprises a first packaging material and a second packaging material, and the first packaging material and the second packaging material are joined by forming a space for storing articles therebetween.
- a transparent barrier film having a water vapor barrier property on at least the outermost surface of the first packaging material and the second packaging material, and the second packaging material has a light reflecting or light absorbing film.
- a desiccant-containing resin film having a film and a pattern printing layer including a moisture absorption indicator pattern on the inner side of the film, and transparentized by moisture absorption on the inner side of at least one of the first packaging material and the second packaging material. It is characterized by being partially or entirely laminated.
- a barrier film having a water vapor barrier property may be provided on the outermost surface of the second packaging material.
- the first packaging material and the second packaging material are sealed on four sides by heat sealing, etc. to protect the stored items from moisture.
- this packaging bag includes one in which the three sides of the first packaging material and the second packaging material are heat-sealed. The goods are stored and the other side is sealed by heat sealing or the like.
- the desiccant-containing resin film is a laminate of a desiccant-containing resin layer and a thermoplastic resin layer.
- the thermoplastic resin layer is preferably, for example, polyolefin.
- a transparent barrier film strength base film is a silica or alumina deposited film, or a multilayer deposited film thereof, a silicon nitride deposited film, a layer coated with a barrier coating, Alternatively, it is a film having a layer obtained by coating a deposited film with a noria paint, and the water vapor permeability of the transparent barrier film is 0.001-100 gZm 2 Zday. It is preferable that the first packaging material and the second packaging material have almost the same Noria performance.
- a film having a metallic glaze such as a light reflecting film strength aluminum laminated film, an aluminum deposited film, an inorganic deposited film, or an inorganic oxide deposited film.
- the water vapor permeability is 0.001 to 100 gZm 2 Zday. Na
- the inorganic substance or the inorganic oxide is selected so as not to give a load to the environment.
- the light absorbing film force is a film obtained by coating or containing a light absorbing material, or a film obtained by laminating a film coated or laminated with a light absorbing material, Its water vapor permeability is 0.001 to 100 gZm 2 Zday.
- the pattern printing layer is a desiccant-containing resin film or a polyolefin film provided on a light reflecting or light absorbing film
- the moisture absorbing indicator pattern is the polyolefin film.
- the desiccant-containing resin film becomes transparent as the desiccant content of the desiccant reaches saturation, and the moisture absorption indicator is printed on at least one side of the material. The force inside the bag or the external force of the bag can be visually confirmed.
- the pattern printing layer is provided on the desiccant-containing resin film or light reflection or light absorption film
- the moisture absorption indicator pattern is a character on at least one side of the desiccant-containing resin film or light reflection or light absorption film, Numbers, patterns, or a combination of these may be printed.
- the moisture absorption indicator pattern indicates the storage limit of the article against moisture. For example, it may be written as ⁇ the storage limit has been reached '' or a combination of this notation and a picture. In addition, using different types of printing density such as letters, numbers, etc., the storage limit can be visually checked in order from the density of the desiccant-containing resin film in accordance with the moisture absorption state. You may be able to confirm it.
- the polyolefin film on which the moisture absorption indicator pattern is printed may be provided with a printed layer of a background color on the outer surface side, that is, on the surface opposite to the moisture absorption indicator pattern.
- the desiccant-containing resin film contains at least one of zeolite, silica gel, and alumina as a desiccant.
- the first packaging material is located on the front side of the article stored in the packaging bag, and the second packaging material is located on the back side of the article. .
- the film is a film on which light absorbing film strength black ink is printed or a film in which carbon black is mixed with thermoplastic resin.
- a light scattering material is mixed or applied to the desiccant-containing resin film, or a light scattering material is applied to the transparent barrier film.
- the packaging bag of the present invention is a packaging bag such as a three-side seal bag having a moisture absorption indicator function, or a four-side seal bag, a gusset bag, a standing bouch, etc., comprising the first packaging material and the second packaging material.
- the storage part of the article may be provided on both sides or two places of the second packaging material, or the storage part of the article of the second packaging material may be formed in a box shape or a cylindrical shape. Good.
- the desiccant with a hygroscopic indicator function of the present invention comprises an indicator film layer in which a pattern printing layer on which a hygroscopic indicator pattern is printed and a hygroscopic film that becomes transparent by moisture absorption are sequentially laminated on a barrier film. And having a main desiccant layer and a moisture-permeable film on the hygroscopic film of the indicator film layer.
- the barrier film can be composed of an aluminum laminate film, an aluminum vapor-deposited film, an inorganic vapor-deposited film, or an inorganic oxide vapor-deposited film.
- the pattern printing layer is printed with a hygroscopic indicator pattern having characters, numbers, pictures, or a combination of these as appropriate.
- desiccant such as silicon dioxide (silica gel), calcium oxide, calcium chloride salt, sulfate compound, barium oxide, activated carbon, clay compound, etc. is used for thermoplastic resin.
- the main desiccant layer may be transparent when the hygroscopicity is in an unsaturated state, but it is not necessarily required to be transparent. When the hygroscopicity of the main desiccant layer reaches a saturated state, it may be transparent. Bho.
- a moisture permeation control film for controlling the time for which the hygroscopic property of the hygroscopic film reaches saturation is laminated on the hygroscopic film.
- the moisture permeation control film includes, for example, polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polychlorinated butyl (PVC), nylon (Ny), ethylene butyl acetate (EVA), which are thermoplastic resins. ), Polystyrene (PS), ethylene butyl alcohol copolymer (EVOH), polyvinylidene chloride (PVDC), or cellophane.
- the moisture permeability control film controls the moisture absorption speed of the moisture absorbent film so that the moisture absorption of the moisture absorbent film reaches saturation before the moisture content of the main desiccant layer reaches saturation and the moisture absorption indicator cannot be seen from the outside. It is a film to do.
- the hygroscopic retention time of the hygroscopic film is set according to the hygroscopic performance such as the hygroscopic retention time of the main desiccant layer.
- the present invention there is a certain gap between the main desiccant layer and the hygroscopic film. A space is formed between the desiccant layer and the moisture permeation control film to form a bag-like portion.
- the main desiccant layer is a transparent desiccant film or a transparent desiccant molded article.
- the main desiccant layer is a granular or plate-like desiccant or a deliquescent desiccant
- the periphery of the moisture permeable film and the hygroscopic film is a moisture permeable film.
- the periphery of the moisture permeation control film is sealed to form a bag-like portion, and the bag-like portion contains a granular or plate-like desiccant or a deliquescent desiccant.
- the granular desiccant examples include silica gel and the like, and a plate-like desiccant containing silica gel or the like in a transparent resin can be used, and the deliquescent desiccant includes calcium chloride, chloride.
- the desiccant contained in the bag is transparent or transparent when the hygroscopicity reaches saturation. If the pattern is visible,
- the hygroscopic film is obtained by laminating a desiccant-containing resin layer and a thermoplastic resin.
- the hygroscopic film contains at least one of zeolite, silica gel and alumina as a desiccant.
- the moisture permeation control film is a transparent film, and has a water vapor permeability force SO. 01 to 5000 gZm 2 Zday.
- the packaging bag with a moisture absorption indicator function of the present invention comprises a first packaging material and a second packaging material, and the first packaging material and the second packaging material form a space for storing articles between them.
- a transparent barrier film having a water vapor barrier property is provided on at least the outermost surface of the first packaging material and the second packaging material is light-reflective or It has a light-absorbing film and a pattern printed layer containing a moisture absorption indicator pattern inside the bag of the film, and is made transparent by moisture absorption inside the bag of at least one of the first packaging material and the second packaging material. Since the oil film is partially or entirely laminated, the transparency increases as moisture absorption of the desiccant-containing resin film proceeds.
- the desiccant-containing resin film becomes gradually transparent so that the stored articles can be confirmed and the moisture-absorbing indicator pattern of the pattern printing layer having an indicator function is visually recognized. It is possible to confirm that the moisture absorption performance as a packaging bag has reached its limit.
- the desiccant-containing resin film is laminated inside the bag of the second packaging material, the stored articles can be confirmed in advance, and the desiccant-containing resin film becomes gradually transparent due to moisture absorption, and the pattern printing layer absorbs moisture.
- the indicator pattern can be visually confirmed, and it can be confirmed that the moisture absorption performance as a packaging bag has reached its limit.
- the stored articles cannot be visually recognized from the outside, but both desiccant-containing
- the hygroscopicity of the oil film reaches saturation
- the hygroscopic indicator pattern of the pattern printing layer can be visually recognized, and the stored article can be protected from moisture.
- the desiccant-containing resin film is laminated on both the first packaging material and the second packaging material, so that the moisture absorption performance in the packaging bag can be maintained for a long time.
- the desiccant-containing resin film laminated on the first packaging material and Z or the second packaging material becomes transparent, and a moisture absorption indicator pattern is developed. Can be easily determined, and is extremely effective in managing contents.
- the desiccant-containing resin film is a laminate of a desiccant-containing resin layer and a thermoplastic resin layer
- the desiccant-containing resin film is laminated on the first packaging material.
- the desired moisture absorption performance can be maintained, and the mechanical strength of the desiccant-containing resin film can be maintained, which can be used for various applications.
- Transparency barrier film force A film of silica or alumina deposited on the film, or a multilayer deposited film of these, a deposited film of silicon nitride film, a layer coated with a noria coating, or a coating with a barrier coating on the deposited film
- the moisture resistance of the transparent barrier film is a water vapor transmission rate of 0.001 to 100 gZm 2 Zday
- the barrier performances of the first packaging material and the second packaging material are substantially equal.
- the moisture barrier performance of the transparent barrier film can be selected according to the required moisture absorption performance, and a packaging bag capable of maintaining high moisture barrier performance can be provided.
- the light reflecting film strength is an aluminum laminate film, an aluminum vapor deposition film, an inorganic vapor deposition film, or a film having a metallic luster due to an inorganic oxide vapor deposition film, or a light absorption film strength.
- the water vapor transmission rate is 0.001 to 100 gZm 2 Zday, use a light-absorbing or light-reflecting film.
- the color difference with the moisture absorption indicator pattern of the pattern printed layer laminated on the inside of the bag becomes remarkable, and the visibility of the moisture absorption indicator pattern is improved when the desiccant-containing resin film absorbs moisture and the light transmission increases.
- the barrier properties of the first packaging material and the second packaging material are almost equal, and the transparency barrier film depends on the required moisture absorption performance. Thus, it is possible to provide a packaging bag that can maintain high moisture-proof performance.
- the non-turn printed layer is a desiccant-containing resin film or a polyolefin film provided on a light reflecting or light absorbing film, and the moisture absorption indicator pattern has a letter, number, pattern, or these on at least one side of the polyolefin film. If the design is appropriately combined, or the pattern printing layer is provided on a desiccant-containing resin film or light-reflecting or light-absorbing film, and the moisture-absorbing indicator pattern is a desiccant-containing resin film or light-reflecting film.
- the desiccant-containing resin film will become saturated as the moisture-absorbing state of the desiccant contained becomes saturated. Since it becomes transparent, when the moisture absorption limit is reached, moisture absorption It is possible to visually recognize the Tapatan is advantageous management is easy of the contents to moisture.
- the hygroscopic indicator pattern may indicate the storage limit of the article, for example, “the storage limit has been reached”, or may be a combination of this and a pattern, or a character. It is possible to visually check the storage limit step by step by using the ones with different printing densities such as numbers, so that the storage limit can be viewed in stages, which is effective in managing contents.
- the optical density difference is increased to improve the visibility of the moisture absorption indicator pattern. It can be.
- the desiccant In the resin film containing the desiccant, a small amount of zeolite, silica gel, alumina is used as the desiccant.
- the substance can be selected appropriately according to the use, and the substance can be selected without harming the human body.
- the hygroscopicity of the desiccant-containing resin film reaches saturation, the transparency becomes good, and the second packaging material has a light reflecting film or light-absorbing film laminated on the outside of the desiccant-containing resin film. Therefore, when the moisture absorption of the desiccant-containing resin film reaches saturation, if it is transparent, it may cause a problem with the moisture absorption indicator pattern even if it is slightly colored. There is no advantage.
- an adsorbent such as acid calcium, salt calcium, sulfate compound, barium oxide, activated carbon, clay compound, etc., is contained according to the purpose by containing it to the extent that the effects of the present invention are not lost. Adsorption performance can be added.
- the first packaging material and the second packaging material are both provided with a desiccant-containing resin film, and the moisture-proof performance of the first packaging material is lower than that of the second packaging material, the first packaging material side After the desiccant-containing resin film became transparent and the contents became visible, the desiccant-containing resin film on the second packaging material side became gradually transparent, and the moisture absorption indicator pattern on the lower layer. Will be visible.
- the desiccant-containing resin film is provided on both the first packaging material and the second packaging material, so that the moisture absorption performance can be maintained for a long period of time, and the moisture management of stored items is performed in stages. It becomes possible.
- the first packaging material or the second packaging material in a shape in which at least two storage portions exist, applications such as mixing a compound whose function deteriorates due to moisture and a liquid just before use, etc. Thus, it is possible to confirm the moisture absorption state of the storage part such as the composite.
- the moisture absorption indicator pattern covers and stores the surface of the storage article. There is no possibility of confirming the article or deteriorating the design.
- the desiccant of the desiccant-containing resin film becomes saturated with moisture.
- the visibility of the moisture absorption indicator pattern is further improved.
- the scattering material spherical ones such as glass beads, silica, and acrylic beads are preferable.
- an indicator film in which a pattern printing layer on which a hygroscopic indicator pattern is printed and a hygroscopic film that becomes transparent by moisture absorption are sequentially laminated on the barrier film.
- the main desiccant layer and a moisture permeable film on the hygroscopic film of the indicator film layer so moisture absorption without using heavy metal cobalt containing heavy metals that are harmful to the human body
- the hygroscopic film transparent, it is possible to visually recognize the hygroscopic indicator pattern of the pattern printing layer, and this has the advantage that the hygroscopic state of the main desiccant layer can be indicated.
- the moisture absorption state of the main desiccant layer side force can be indicated by disposing a pattern printing layer for a moisture absorption indicator on one side of the moisture absorbent film and covering with a barrier film.
- the moisture absorption indicator pattern may indicate the storage limit of the article, for example, “the storage limit has been reached” or the like, or may be a combination of these and a pattern.
- the moisture permeation film for controlling the time when the hygroscopic performance of the hygroscopic film reaches saturation is laminated on the hygroscopic film
- the moisture permeation film is interposed by interposing the moisture permeation control film.
- the moisture that has passed through the main desiccant layer is first absorbed, and after the hygroscopicity of the main desiccant layer reaches saturation, it is possible to control so that the hygroscopic film is saturated by moisture that passes through the moisture permeation control film.
- the indicator pattern becomes visible after the moisture content of the main desiccant reaches saturation.
- the bag between the main desiccant layer and the hygroscopic film forms a bag-like part by forming a space between the main desiccant layer and the moisture permeation control film, the bag-like part is dried. It is possible to store a sheet that is labeled as an agent.
- the main desiccant layer is a transparent desiccant film
- the main desiccant layer may be formed into a film or sheet, or transparent
- a desiccant desiccant molded product it is molded into an arbitrary shape such as a plate or stick, and the desiccant that matches this shape is stored in various shapes of containers and packages, The drying performance can be indicated.
- the hygroscopic film is formed by laminating a desiccant-containing resin layer and a thermoplastic resin, the hygroscopic film itself has sufficient mechanical strength. Surface smoothness can be enhanced.
- Desiccant power to be mixed with hygroscopic film At least of zeolite, silica gel, alumina
- the human body will not be adversely affected if the desiccant is discarded in the living environment.
- the moisture permeation control film is a transparent film and has a water vapor permeability in the range of 0.01-5000 gZm 2 Zday, moisture absorption as a desiccant required by the moisture permeation control film is used. Performance can be set arbitrarily.
- FIG. 1 (a) is a partially cutaway perspective view showing an embodiment of a packaging bag with a moisture absorption indicator function according to the present invention
- FIG. 1 (b) is a desiccant-containing resin
- FIG. 5 is a partially cutaway perspective view of a packaging bag in which moisture absorption of a film desiccant reaches saturation and a moisture absorption indicator pattern is developed.
- FIGS. 2 (a) to 2 (d) are schematic cross-sectional views showing the forms of the first packaging material and the second packaging material of the embodiment of FIGS. 1 (a) and 1 (b), respectively. It is.
- FIG. 3 (a) is a partially cutaway perspective view showing another embodiment of a packaging bag with a moisture absorption indicator function according to the present invention
- FIG. 3 (b) is a drying of a desiccant-containing resin film.
- FIG. 3 is a partially cutaway perspective view of a packaging bag in which the hygroscopicity of the agent has reached saturation and a hygroscopic indicator pattern has been developed.
- FIGS. 4 (a) and 4 (b) show the first packaging material of other embodiments of FIGS. 3 (a) and 3 (b) and It is a schematic sectional drawing which shows the form of a 2nd packaging material, respectively.
- FIG. 5 is a cross-sectional view showing an embodiment of a desiccant with a moisture absorption indicator function according to the present invention.
- FIG. 6 is a cross-sectional view showing another embodiment of a desiccant with a moisture absorption indicator function according to the present invention.
- FIG. 7 (a) and FIG. 7 (b) are cross-sectional views showing still other embodiments of the desiccant with a moisture absorption indicator function of the present invention, respectively, and these embodiments have a bag-like portion. is doing
- FIG. 8 (a) and FIG. 8 (b) are cross-sectional views showing an embodiment in which a desiccant is stored in a bag-like portion.
- FIG. 9 is a perspective view of the embodiment of FIG. 8 (b).
- FIG. 10 is a schematic cross-sectional view of a conventional desiccant with a moisture absorption indicator function.
- FIG. 11 is a schematic cross-sectional view showing a conventional package having a moisture absorption indicator function.
- a packaging bag with a moisture absorption indicator function according to the present invention, a packaging bag provided with a film having a drying function on the surface side of the packaging bag (the surface side of the stored article), and a film having a drying function are packaged.
- a packaging bag provided with a film having a drying function on the surface side of the packaging bag (the surface side of the stored article), and a film having a drying function are packaged. This is broadly described as a packaging bag provided only on the back side of the packaging bag (the back side of the stored article).
- FIG. 1 (a) and FIG. 1 (b) are partially cutaway perspective views showing an embodiment of a packaging bag with a moisture absorption indicator function of the present invention
- FIG. 1 (a) is a packaging bag
- Fig. 1 (b) shows a state in which the hygroscopicity in the packaging bag has reached saturation, and the hygroscopic indicator pattern 30 is visible.
- a desiccant-containing resin film is provided on the first packaging material 10 on the surface side of the packaging bag, and the circumference of the first packaging material 10 and the second packaging material 20 is the heat seal portion 40.
- the packaged article A is stored in a space 45 (in the bag) 45 between the first packaging material 10 and the second packaging material 20.
- These packaging bags are first cut into squares with arbitrary dimensions. Packing material 10 and second packing material 20 are heat-sealed on their three sides, then the product A is stored, and the other side is heat-sealed and sealed. It is a packaging bag.
- the packaging bag is composed of the first packaging material 10 and the second packaging material 20, and the first packaging material 10 is formed by laminating a desiccant-containing resin film 11 and a transparent barrier film 12. It is a laminated film, and a transparent barrier film 12 covers the outermost surface on the first packaging material 10 side.
- the second packaging material 20 is a laminated film of a thermoplastic resin film (sealant film) 22, a pattern printing film 23, and a light reflection or light absorption film 24.
- the desiccant-containing resin film 11 is a resin composition containing zeolite, and when forming the desiccant-containing resin film 11, polyolefin (for example, LLDPE) is laminated by coextrusion on one or both sides. It is a thing.
- the strength of the first packaging material 10 can be increased by laminating a polyolefin resin layer on one or both sides of the resin composition containing zeolite, and the resin composition film containing zeolite.
- the flat surface can be made flat, and the transparency of the transparent barrier film 12 can be further enhanced.
- the transparent barrier film 12 of the first packaging material 10 a polyester film, for example, a polyethylene terephthalate (PET) film is used.
- the transparent barrier film 12 is preferably a water vapor or gas nootropic film, for example, a vapor deposition film such as silica or alumina, a nitride sputtered film, a K coat film (vinylidene chloride salty salt). Films coated with Bule copolymer lux), OPP films (biaxially stretched polypropylene films), OPE films (stretched polyethylene films), etc. are used.
- Coextruded films polyimide, polycarbonate, engineering plastic films such as PPS (polyethylene sulfide) and PES (polyether sulfide), and fluorine-based resin films such as PTFE can also be used.
- the moisture barrier property of the transparent barrier film 12 is preferably such that the water vapor permeability is in the range of 0.001 to 100 gZm 2 Zday.
- the desiccant-containing resin film 11 is produced as follows. First, 5-80% by weight of zeolite is mixed with the base resin, and in order to further increase the affinity of these, ethylene 'acrylate, maleic anhydride copolymer, etc. are added at a mixing ratio of 1-20% by weight. Add and fill Mold into a lump shape.
- polyolefin for example, LLDPE
- LLDPE low density polyethylene
- a zeolite film consisting essentially of a base resin and a zeolite reduces the rough light transmittance because the film surface is a mixture of the base resin and the zeolite.
- only the zeolite film has a very high moisture absorption rate in the atmosphere, and it is difficult to control the saturation time and the film strength is poor. Therefore, by laminating a film of a material such as polyolefin on a zeolite film by a co-extrusion method, the strength of the entire film is increased, the roughness of the film surface is reduced, and the zeolite crystal aggregates are separated. The effect of making the Zeolite film clearer by pressing and further absorbing moisture is demonstrated.
- the polyolefin used here is transparent.
- the mixing ratio of zeolite is preferably about 40 to 80% by weight, and more preferably about 50 to 80% by weight.
- Thermoplastic resin is used for this base resin.
- LDPE low density polyethylene
- LLDPE linear low density polyethylene
- PP polypropylene
- various copolymers polymers
- ionomers EAA, EMAA, EVA, EEA, EMA, EMMA, etc. are used by mixing one or more kinds, and among these resins, high MFR (melt flow rate), preferably at a temperature of 190 ° C, Load 21. Select and use appropriately so that the MFR measured under the condition of 18N is 10 (gZlO min) or more.
- Zeolite is a powdery inorganic porous material having a pore size of 3A to 10A, and is used as a suitable adsorbent.
- the average particle size is preferably about 10 m, for example.
- Zeolite is a porous particulate material that has polarity and is used to separate materials according to the difference in molecular size, has a structure with uniform pores, and allows small molecules to enter small cavities. Absorb and act as a kind of sieve.
- the desiccant contains at least one of acid calcium, silica gel, salt calcium, sulfate compound, acid barium, alumina, activated carbon, and clay compound.
- preference is given to synthetic or natural zeolite.
- the second packaging material 20 should be placed on the back side of the stored item A.
- the inner side of the bag of the second packaging material 20 is a thermoplastic resin film 22, and the outer side of the thermoplastic resin film 22 has a pattern printing film 23, a light reflection film or a light absorption film 24. Laminated sequentially.
- the thermoplastic resin film 22 may be laminated, and these films may be appropriately made using a co-extrusion method. Laminate.
- Thermoplastic resin film 22 includes LDPE (low density polyethylene), LLDPE (linear low density polyethylene), PP (polypropylene), PS (polystyrene), PMMA (polymethylol methacrylate), nylon, polyester (PET , PBT, PEN) ⁇ PAN (polyacrylonitrile), and various copolymers (copolymers) such as ionomer, EAA, EMAA, EVA, EVOH, EEA, EMA, EMMA, etc. are used in combination.
- fluorinated resin such as PTFE can be used.
- a good material may be appropriately selected when the first packaging material 10 and the second packaging material 20 are bonded together and the periphery is heat sealed.
- the pattern printing film 23 uses, for example, a polyolefin film to increase the mechanical strength of the second packaging material 20, and the moisture absorption indicator pattern 30 as a humidity indicator is printed on one side of the non-turn printing film 23. ing.
- the moisture absorption indicator pattern 30 is printed on the surface where the pattern printing film 23 is bonded to the thermoplastic resin film 22.
- the ink used for printing the moisture absorption indicator pattern 30 is 0.01 to 200% by weight of the pigment or dye with respect to the resin, and the film thickness ranges from 0.3 / ⁇ ⁇ to 100 ⁇ m. Use one.
- the light reflecting or light absorbing film 24 either a light reflecting film or a light absorbing film is used, and is a layer provided so that the optical density difference from the moisture absorption indicator pattern 30 becomes remarkable.
- a light reflecting film 24 an aluminum foil, an aluminum evaporated film, a tin foil, a tin deposited film, a metal foil having a light reflection property such as a nickel foil, or a metal deposited film is used.
- the light absorbing film 24 a film on which black ink is printed or a film formed by mixing carbon black with thermoplastic resin is used. Also, on the surface opposite to the surface on which the moisture absorption indicator pattern 30 of the pattern printing film 23 is formed.
- the background color of the moisture absorption indicator pattern 30 is coated with white, black, red, blue, green, yellow, indigo, cyan, magenta, or mixed ink, and the pattern printing film 23 absorbs light. You can also use it as film 24. This background color makes the optical density difference noticeable when the moisture absorption indicator pattern 30 is visually recognized, and the background color is set in balance with the color of the moisture absorption indicator pattern 30.
- light absorbing film 24 may be coated with white, black, red, blue, green, yellow, indigo, cyan, magenta, or a mixture thereof.
- the packaging bag of this embodiment stores the article A, as shown in Fig. 1 (a), the packaging bag becomes cloudy before the desiccant-containing resin film 11 of the first packaging material 10 absorbs moisture.
- V which cannot see the stored article A and the moisture absorption indicator pattern 30 from the outside on the first packaging material 10 side.
- the desiccant in the desiccant-containing resin film 11 absorbs moisture and its hygroscopic performance approaches saturation, the desiccant-containing resin film 11 becomes gradually transparent, and the stored article A becomes visible, and a moisture absorption indicator Pattern 30 becomes visible.
- the desiccant content of the desiccant-containing resin film 11 reaches saturation, the desiccant-containing resin film 11 becomes substantially transparent as shown in Fig. 1 (b), and the stored article A
- the moisture absorption indicator pattern 30 printed with “KP” is visible on the inner surface of the second packaging material 20.
- the moisture absorption indicator pattern 30 is printed with characters such as " ⁇ " in the illustrated example, but it may be printed with numbers, pictures, or a combination of these appropriately.
- the desiccant contained in the desiccant-containing resin film 11 absorbs moisture and reaches saturation, the desiccant-containing resin film 11 becomes more transparent and, of course, when the packaging bag is opened, also from outside the bag.
- the moisture absorption indicator pattern 30 can be visually recognized.
- the moisture absorption indicator pattern 30 may indicate the storage limit of the stored item ⁇ , for example, a notation “the storage limit has been reached”. In addition, a combination of such notation and design may be used. In addition, by using letters, numbers, etc.
- the light reflecting or absorbing film 24 or the transparent barrier film is used.
- moisture from the outside enters the bag through this pinhole, and the moisture absorption performance of the desiccant-containing resin film 11 reaches saturation in a relatively short time.
- the desiccant-containing resin film 11 is wholly or partially transparent and the moisture absorption indicator pattern 30 is visible, it can be determined that this packaging bag does not function as a moisture-proof bag.
- a desiccant-containing resin film is provided on both the first packaging material 10 and the second packaging material 20, and the desiccant-containing resin film 11 is provided inside the bag of the first packaging material 10.
- Another desiccant-containing resin film 21 is provided inside the bag of the second packaging material 20.
- a pattern printing film 23 on which a moisture absorption indicator pattern 30 is printed and a light reflection or light absorption film 24 are sequentially laminated.
- the desiccant-containing resin film 21 of the second packaging material 20 is the same as the desiccant-containing resin film 11 in the embodiment of FIG. 2 (a).
- both the first packaging material 10 and the second packaging material 20 are provided with the desiccant-containing resin films 11 and 21, and are contained in the both desiccant-containing resin films 11 and 21.
- the moisture absorption indicator pattern 30 cannot be visually recognized.
- the first packaging material 10 and the second packaging material 20 are provided with the desiccant-containing resin films 11 and 21, depending on the performance of the transparent barrier film 12, the entire surface of the bag is desiccant. It is covered with the containing resin film and can maintain the function as a moisture-proof bag for a longer time than the embodiment of FIG. 2 (a).
- the first packaging material 10 is a laminate of the transparent barrier film 12 and the desiccant-containing resin film 11 as in the above embodiment, and the second packaging material 20 is placed inside the bag.
- a thermoplastic resin film 22 is provided, and a thermoplastic resin film 22 is provided.
- a pattern printing film 23 on which a moisture absorption indicator pattern 30 is printed, a light reflection or light absorption film 24, and a transparent barrier film 25 are sequentially laminated on the outer side of the lumen 22.
- the transparent barrier films 12 and 25 are laminated on the outermost surface of the packaging bag, and the packaging bag can maintain the moisture absorption performance of the desiccant-containing resin film 11 for a long period of time.
- the barrier film 25 of the second packaging material 20 of this embodiment is preferably a gas-nourial film, and is not necessarily transparent, for example, an aluminum laminated film, a metal vapor-deposited film such as an aluminum vapor-deposited film, or an inorganic vapor-deposited film.
- Coextruded films polyimide, polycarbonate, engineering plastic films such as PPS (polyether sulfide) and PES (polyether sulfide), and fluorine-based resin films such as PTFE can also be used.
- PPS polyether sulfide
- PES polyether sulfide
- fluorine-based resin films such as PTFE
- the barrier properties of the first packaging material 10 and the second packaging material 20 are substantially equal, and the moisture barrier performance of the transparent barrier films 12 and 25 is selected according to the required moisture absorption performance, so that the moisture resistance is semi-permanent.
- the packaging bag can maintain the performance.
- the transparent barrier film 12 of the first packaging material 10 is the same as in the above embodiment. Since the transparent barrier film 12 of the first packaging material 10 is required to be transparent, a light-reflective film such as an aluminum laminate film cannot be used, but silica or alumina is deposited on the film. A film having a film or a multilayer deposited film thereof, a deposited film of silicon nitride, a layer coated with a noria paint, or a layer coated with a noria paint on the deposited film can be used.
- the moisture resistance of 12 is from 0.001 to 100 gZm 2 Zday in terms of water vapor permeability.
- both the first packaging material 10 and the second packaging material 20 Transparent barrier films 12 and 25 are provided, respectively, the first packaging material 10 is provided with a desiccant-containing resin film 11, and the second packaging material 20 is provided with a desiccant-containing resin film 21.
- the desiccant-containing resin films 11 and 21 are the same as those in the above embodiment, and both surfaces of the desiccant-containing resin film are coated with a polyolefin resin.
- a pattern printing film 23 on which a moisture absorption indicator pattern 30 is printed, a light reflection or light absorption film 24, and a transparent barrier film 25 are sequentially laminated.
- the transparent barrier films 12 and 25 are laminated on the outermost surfaces of the first packaging material 10 and the second packaging material 20 of the packaging bag, which is drier than the embodiment of FIG. 2 (b).
- the moisture absorption performance of the agent-containing coconut resin films 11 and 21 can be maintained for a long time.
- the first packaging material 10 and the second packaging material 20 are provided with a desiccant-containing resin film 11 and 21, respectively, and the visibility of the moisture absorption indicator Noturn 30 is somewhat worse, so the optical density difference is expanded.
- a light reflecting film 24 such as an aluminum foil laminated film on the outer surface side of the pattern printing film 23.
- the surface of the desiccant-containing resin films 11 and 21 is coated with a polyolefin resin to improve visibility.
- FIGS. 3 (a) and 3 (b) are partially cutaway perspective views of the packaging bag of the present embodiment, and the four sides around the first packaging material 10 and the second packaging material 20 are the heat seal portions 40.
- the product A is sealed and contained in the packaging bag 45.
- FIGS. 4 (a) and 4 (b) An example of this embodiment is shown in FIGS. 4 (a) and 4 (b).
- the first packaging material 10 is a transparent laminated film, and the desiccant-containing resin film 21 is replaced with the second packaging material 20. It is installed. As shown in Fig.
- the stored item A can be confirmed from the outside of the packaging bag.
- 3A shows a state in which the moisture absorption performance of the desiccant-containing resin film 21 is maintained, and the moisture absorption indicator pattern 30 on the inner surface of the bag of the second packaging material 20 cannot be visually recognized.
- FIG. 3 (b) shows that the moisture absorption indicator pattern 30 can be visually recognized, and shows that the moisture absorption performance of the desiccant-containing resin film 21 has reached a saturated state.
- the first packaging material 10 is a packaging bag. This is a laminated film in which a transparent barrier film 12 and a thermoplastic resin film (sealant film) 13 which are the outermost layers of the above are laminated.
- a pattern printing film 23 having a moisture absorption indicator pattern 30 printed on the outside of the desiccant-containing resin film 21 is laminated, and a light reflecting or light absorbing film 24 is laminated on the pattern printing film 23.
- the thermoplastic resin film 13 is the same as the thermoplastic resin film 22 of the embodiment shown in FIGS. 2 (a) and 2 (c), and a material having a good sealing property is selected.
- the first packaging material 10 is a laminated film in which a thermoplastic resin film (sealant film) 13 is laminated on the outermost transparent barrier film 12.
- the second packaging material 20 is formed by sequentially laminating a pattern printing film 23 having a moisture absorption indicator pattern 30 printed on the outside of a desiccant-containing resin film 21, a light reflection or light absorption film 24, and a transparent barrier film 25. ing.
- the outermost layer force S barrier film 12, 25 of the packaging bag is covered.
- the barrier film 12 of the first wrapping material 10 is a transparent force.
- the NORA film 25 of the second wrapping material 20 does not necessarily have to be transparent, as long as it has a good water vapor barrier property.
- the desiccant-containing resin film 21 is provided on the second packaging material 20, and the desiccant-containing resin film 21 is clouded.
- the desiccant absorbs moisture and reaches a saturated state
- the white turbidity changes to transparent
- the second packaging material 20 changes to transparent through the desiccant-containing resin film 21 and the moisture absorption indicator pattern of the pattern printing film 23. Can be visually recognized.
- the desiccant-containing resin film 21 uses a resin composition containing zeolite, and one side or Polyolefin (such as LLDPE) is laminated on both sides by coextrusion.
- the transparent barrier film 12 of the first packaging material 10 is preferably a gas-noxious transparent film, such as an inorganic vapor-deposited film, an inorganic oxide vapor-deposited film, a K-coated film (salt-vinylidene monosalt-vinyl). Film coated with copolymer lattice), OPP film (biaxially oriented polypropylene film), OPE film Rum (stretched polyethylene film) or the like is used.
- Coextruded films polyimides, polycarbonates, engineering plastic films such as PPS (polyphenylene sulfide) and PES (polyether sulfide), and fluorine-based resin films such as PTFE can also be used.
- the film has a deposited film of silica or alumina, or a multilayer deposited film of these, a deposited film of silicon nitride, a layer coated with a noble paint, or a layer coated with a noble paint on the deposited film.
- the moisture barrier property of the transparent barrier film 12 is a water vapor permeability of 0.001 to 100 gZm 2 Zday.
- the moisture absorption of the desiccant-containing resin film 21 reaches saturation according to the moisture absorption performance required by the stored article A.
- the time can be controlled within a range of, for example, 1 day to 100 days or more.
- the packaging bag of the present invention is a packaging bag in which the four sides around the first and second packaging materials are heat-sealed and provided with a single storage portion as in the above embodiment.
- the second packaging material may be formed into a box shape or a cylindrical shape.
- the indicator pattern is formed by applying a spherical light scattering material such as glass beads, silica, or acrylic beads to the transparent barrier film, or mixing or applying a light scattering material to the desiccant-containing resin film. It is possible to improve the visibility.
- a spherical light scattering material such as glass beads, silica, or acrylic beads
- the desiccant of this embodiment is obtained by laminating a transparent desiccant film (main desiccant layer) 61 as a main desiccant on the indicator film layer 70, and then drying the transparent desiccant film.
- 61 is a laminate of a moisture permeable film 64 on 61.
- a pattern printing layer 73 for a hygroscopic indicator and a hygroscopic film 71 containing zeolite are sequentially laminated on a barrier film 75.
- Transparency desiccant The film 61 is laminated on the hygroscopic film 71 of the indicator film layer 70.
- the nootropic film 75 is a film for blocking moisture from the pattern printing layer 73 side to the hygroscopic film 71, and a polyester film such as a polyethylene terephthalate (PET) film is used.
- PET polyethylene terephthalate
- vapor-deposited films such as silica and alumina, films sputtered with nitride, films laminated with aluminum foil and thermoplastic films, K-coated films (vinylidene chloride monochloride) are preferred. Films coated with Bule copolymer lux), OPP films (biaxially stretched polypropylene films), OPE films (stretched polyethylene films), etc. are used.
- Coextruded films polyimide, polycarbonate, engineering plastic films such as PPS (polyphenylene sulfide) and PES (polyether sulfide), fluorine resin films such as PTFE, and the like can also be used.
- PPS polyphenylene sulfide
- PES polyether sulfide
- fluorine resin films such as PTFE, and the like
- the moisture-proof performance of this noria film 75 it is desirable that the water vapor permeability is in the range of 0.001 to 100 gZm 2 Zday.
- the pattern print layer 73 is obtained by printing the moisture absorption indicator pattern 80 on the thermoplastic resin film.
- the hygroscopic indicator pattern 80 may be printed on the back side of the hygroscopic film 71 or on the top surface of the noorious film 75.
- the moisture absorption indicator pattern 80 of the pattern printing layer 73 is printed with letters, numbers, pictures, or a combination of these appropriately. It should be noted that one of white, black, red, blue, green, yellow, indigo, cyan, and magenta, which is the background color of the moisture absorption indicator pattern 80, is formed on the surface on which the moisture absorption indicator pattern 80 is formed on the pattern printing layer 73. You may apply the ink which mixed.
- This background color makes the optical density difference noticeable when the moisture absorption indicator pattern 80 is visually recognized, and the color of the background color is set in balance with the color of the moisture absorption indicator pattern 80.
- the ink used for printing the moisture absorption indicator pattern 80 should have a weight specific force of 0.01 to 200% by weight of pigment or dye with respect to the resin, and its film thickness should be in the range of 0.3 to 100 ⁇ m. use.
- a rosin composition mixed with a desiccant for example, zeolite
- a desiccant for example, zeolite
- polyolefin for example, LLDPE
- Zeolite is a powdery inorganic porous material having a pore size of 3 A to 10 A, and is suitable as an adsorbent. Used. The average particle diameter is preferably about 10 m, for example.
- Zeolite is a porous particulate material that has polarity and is used to separate materials according to the difference in molecular size, and has a structure with uniform pores.
- the desiccant contained in the hygroscopic film 71 is at least one of acid calcium, silica gel, salt calcium, sulfate compound, barium oxide, alumina, activated carbon, and clay compound. Although it may contain the above, synthetic or natural zeolite is most preferred.
- the hygroscopic film 71 is manufactured as follows. First, 5-80% by weight of zeolite is mixed with the base rosin, and in order to further increase the affinity of these, ethylene, acrylic acid ester, maleic anhydride copolymer, etc. are added at a mixing ratio of 1-20% by weight. And formed into a film. When a zeolite-containing resin film is formed, a polyolefin (eg, LLDPE) is laminated on one or both sides by coextrusion.
- the mixing ratio of zeolite is preferably about 40 to 80% by weight, more preferably about 50 to 80% by weight, so that the hygroscopic film itself has high absorption performance. In addition, the concealability of the moisture absorption indicator pattern before moisture absorption can be improved.
- thermoplastic resin is used for this base resin.
- LDPE low density polyethylene
- LLDPE linear low density polyethylene
- PP polypropylene
- various copolymers copolymers
- Ionomer EAA, EMAA, EVA, EEA, EMA, EMMA, etc. are used in a mixture of one or more types.
- high MFR melt flow rate
- 190 ° C a low density polyethylene
- EEA linear low density polyethylene
- EMA polypropylene
- EMMA polypropylene
- Ionomer e.g., EMA, EMMA, etc.
- high MFR melt flow rate
- MFR measured under 18N condition is 1
- the transparent desiccant film 61 which is the main desiccant layer, is obtained by mixing a thermoplastic resin with a diacid salt (silica gel) as a main desiccant.
- silica gel silica gel
- fine powders such as acid calcium, salt calcium, sulfate compounds, and sodium oxide are used as the main desiccant.
- the transparent desiccant film 61 as the main desiccant layer may be replaced with a transparent desiccant molded body.
- This transparent desiccant molded body is a mixture of thermoplastic resin and, as a typical example, a mixture of diacid and silica (silica gel).
- the agent molded body is molded using a molding die.
- Transparent desiccant moldings include sheets, plates, sticks, and irregular shapes.
- the stick-shaped transparent desiccant molded body has, for example, a square cross section, a moisture permeable film 64 is laminated on one side of the transparent desiccant molded body, and the hygroscopic film 71 side of the indicator film layer 70 on the other side. Are laminated face to face.
- the moisture absorption indicator pattern 80 of the pattern printing layer 73 is reduced.
- the external force is also made visible, and when the moisture absorption indicator pattern 80 is also visible, it means that the moisture absorption performance of the desiccant has reached saturation.
- the moisture permeation control film is disposed between the transparent desiccant film 61 or the transparent desiccant molded body, which is the main desiccant layer of the above embodiment, and the hygroscopic film 71. 76 is laminated.
- the moisture permeation control film 76 is a transparent film, for example, polyethylene terephthalate (PET) which is a thermoplastic resin.
- thermoplastic resins include polyethylene (PE), polypropylene (PP), polysalt vinyl (PVC), nylon (Ny), ethylene butyl acetate (EVA), polystyrene (PS), ethylene butyl alcohol Copolymer (EVOH) and polyvinylidene chloride (PVDC) are used.
- PE polyethylene
- PP polypropylene
- PVC polysalt vinyl
- nylon nylon
- EVA ethylene butyl acetate
- PS polystyrene
- EVOH ethylene butyl alcohol Copolymer
- PVDC polyvinylidene chloride
- moisture permeability control film 76 cellophane having excellent moisture absorption and moisture permeability can be used.
- the moisture permeation control film 76 using the above-described thermoplastic resin or cellophane maintains the moisture absorption performance of the transparent desiccant film 61 as the main desiccant or the transparent desiccant molded article. In the meantime, it functions as a protective film for preventing the hygroscopic performance of the hygroscopic film 71 from being saturated before the main desiccant. Compared with the hygroscopic film 71, the duration of the hygroscopic performance of the transparent desiccant film 61 or the transparent desiccant molded product is longer!
- the moisture permeation control film 76 can be selected to have a vapor permeability in the range of 0.01 to 5000 gZm 2 Zday.
- the use of the moisture permeation control film 76 requires a desiccant with a moisture absorption indicator function. There is an advantage that moisture absorption performance as a desiccant can be set arbitrarily.
- FIG. 7 (a) and Fig. 7 (b) show still another embodiment of the desiccant with a moisture absorption indicator function of the present invention.
- a bag-like portion 65 having a space formed between the layers is provided.
- a sheet labeled as a desiccant can be stored.
- the transparent desiccant film 61 and the moisture permeable film 64 are formed on the moisture absorbent film 71 of the indicator film layer 70 in which the moisture absorbent film 71, the pattern printing layer 73, and the barrier film 75 are laminated.
- a bag-like portion 65 is provided between the hygroscopic film 71 and the transparent desiccant film 61.
- the sheet of the indicator film layer 70, the sheet obtained by laminating the transparent desiccant film 61 and the moisture permeable film 64, and the hygroscopic film 71 and the transparent desiccant film 61 face each other. The periphery of this is heat sealed.
- FIG. 7 (b) corresponds to the embodiment of FIG. 6, and is provided with a bag-like portion 65 between the transparent desiccant film 61 and the moisture permeation control film 76.
- the 70 sheets or the sheet in which the moisture permeation control film 76 is laminated on the indicator film layer 70 are exaggerated and illustrated in a curved shape
- the external shape of the desiccant is generally a sheet shape.
- FIGS. 8 (a), 8 (b), and 9 are filled with spherical transparent silica gel 66 formed in a bag-like portion 65.
- a bag-like portion 65 is formed by the hygroscopic film 71 of the indicator film layer 70 and the moisture-permeable film 64, and the bag-like portion 65 is filled with silica gel 66.
- the bag-like portion 65 is formed by the sheet having the moisture-permeable control film 76 laminated on the hygroscopic film 71 of the indicator film layer 70 and the moisture-permeable film 64, and the bag-like portion 65 is filled with silica gel 66.
- the silica gel 66 itself is transparent, and even if the moisture absorption state becomes saturated, it cannot be determined whether or not the function as the desiccant has been lost.
- the silica gel 66 may be columnar or plate-shaped.
- the moisture absorption indicator pattern 80 printed with “Kp” is printed on the pattern printing layer 73 to maintain the moisture absorption performance! /, While the moisture absorption indicator pattern 80 cannot be visually recognized even by an external force.
- the hygroscopicity of the hygroscopic film 71 reaches saturation, the hygroscopic indicator pattern 80 of “ ⁇ ” can be visually recognized, and it can be seen that the function as a desiccant has been lost.
- the moisture absorption indicator pattern 80 of the pattern printing layer 73 is the same as in the above embodiment.
- the desiccant stored in the bag-like portion 65 does not have to be transparent, but the force that becomes transparent when the hygroscopicity reaches a saturated state, or when the desiccant is stored in the bag-like portion 65.
- an opaque desiccant may be used.
- the moisture absorption indicator pattern 80 is printed with characters such as “ ⁇ ” in the example of FIG. 9, but it may be printed with numbers, pictures, or a combination of these appropriately. As the desiccant contained in the hygroscopic film 71 absorbs moisture and reaches saturation, the hygroscopic film 71 becomes more transparent and the hygroscopic indicator pattern 80 can be visually recognized.
- the moisture absorption indicator pattern 80 may be expressed, for example, as “the storage limit has been reached”. Moreover, what combined this notation and a picture may be sufficient. Further, by using characters, numbers, and the like having different printing densities, it may be possible to visually recognize the moisture absorption state step by step so that it can be visually recognized in descending order.
- the bag-like portion 65 is filled with silica gel 66 as a desiccant, but a deliquescent desiccant can be used.
- deliquescent desiccants include salt calcium, magnesium chloride, acid potassium, acid sodium, alunite, magnesium sulfate, phosphorus oxide and the like.
- the deliquescent desiccant absorbs moisture and becomes a transparent liquid, and the moisture absorption indicator pattern 80 can be visually recognized through the liquid-like substance. These desiccants should be transparent if the moisture absorption performance reaches saturation. Good.
- the transparent barrier film is a PE Tsio film deposited on silica with a PET film, and its thickness is 12 / zm.
- This PETsio film is a laminate of 40 ⁇ m thick LDPE (low density polyethylene). . Its water vapor permeability is 0. lgZm 2 Zday.
- This transparent barrier film corresponds to the transparent barrier film 12 of the first packaging material 10 of the embodiment of FIGS. 2 (a) to 2 (d), 4 (a) and 4 (b).
- the laminate of the transparent barrier film / the desiccant-containing resin film has both a transparent barrier film having a PETsio film strength of 12 m and a desiccant-containing resin layer having a thickness of 60 / zm. It is a laminate of a 10m-thick LDPE film.
- This desiccant-containing resin layer is composed of LDPE: zeolite in a weight ratio of 1: 1.
- the laminate of the transparent barrier film / the desiccant-containing resin film has a water vapor permeability of 0.2 g / m 2 Zday, and the first packaging material in the embodiment of FIGS. 2 (a) to 2 (d). Corresponds to 10.
- PET Aluminum vapor-deposited film
- the water vapor permeability is 1.0 gZm 2 Zday, which corresponds to the light reflecting film 24 of the embodiment of FIGS. 2 (a) to 2 (d), FIG. 4 (a) and FIG. 4 (b). .
- a laminate of light-absorbing film Z transparent barrier film is a laminate in which the above-mentioned transparent barrier film is laminated on a light-absorbing film obtained by printing black ink on a PET film having a thickness of 100 m.
- the water vapor permeability is 0.05 gZm 2 Zday, which corresponds to the light-absorbing film 24 and the transparent barrier film 25 in the embodiment of FIGS. 2 (c), 2 (d) and 4 (b).
- Aluminum vapor-deposited film Z transparent barrier film laminate is the above-mentioned aluminum vapor-deposited film
- PET is a laminate of the above transparent barrier film, and its water vapor permeability is 0.
- the aluminum foil laminate film is a 9 ⁇ m thick aluminum foil laminated with a 12 ⁇ m thick PET film, and its water vapor permeability is 0.00 gZm 2 Zday.
- FIG. 4 (a) and FIG. 4 (b) correspond to the light reflecting film 24 of the embodiment.
- the pattern print film is a PET film with a thickness of 25 ⁇ m printed with a moisture absorption indicator pattern.
- Fig. 4 (a) and Fig. 4 (b) The pattern printing film of the embodiment corresponds to 23 mm.
- thermoplastic resin film is an LDPE film having a thickness of 40 ⁇ m, and its water vapor permeability is 10 gZm 2 Zday.
- FIG. 2 (a), FIG. 2 (c), FIG. 4 (a) and The thermoplastic resin film 22 in the embodiment of FIG. 4 (b) corresponds to the sealant film 13.
- Example 1 the first packaging material 10 is a laminate of a transparent barrier film Z sealant film, and the second packaging material 20 has a desiccant-containing resin film / pattern printing film / aluminum foil laminate film strength. (Fig. 4 (a)).
- Example 2 the first packaging material 10 is a laminate of a transparent barrier film Z sealant film, and the second packaging material 20 is a laminate having a desiccant-containing resin film Z pattern printed film Z aluminum vapor deposition film force. ( Figure 4 (a)).
- the first packaging material 10 is a laminate of a transparent barrier film Z sealant film
- the second packaging material 20 is a desiccant-containing resin film Z pattern printing film Z aluminum vapor deposition film Z transparent barrier film strength (Fig. 4 (b)).
- the first packaging material 10 is a laminate of a transparent barrier film Z sealant film
- the second packaging material 20 is a desiccant-containing resin film Z pattern printing film Z light-absorbing film Z transparent barrier film It is a powerful laminate (Fig. 4 (b)).
- the first packaging material 10 is a laminate of a transparent barrier film Z desiccant-containing resin film
- the second packaging material 20 is a desiccant-containing resin film / pattern printing film / aluminum foil laminate. It is a laminate with film strength (Fig. 2 (b)).
- the first packaging material 10 is a laminate of a transparent barrier film Z desiccant-containing resin film
- the second packaging material 20 is a desiccant-containing resin film / pattern printing film / aluminum vapor deposition film. It is a powerful laminate (Fig. 2 (b)).
- the first packaging material 10 is a laminate of a transparent barrier film Z desiccant-containing resin film
- the second packaging material 20 is a desiccant-containing resin film / pattern printing film / aluminum vapor deposition film. It is a laminate composed of Z-transparent barrier film (Fig. 2 (d)).
- the first packaging material 10 is a product of a transparent barrier film Z desiccant-containing resin film. It is a layered body, and the second packaging material 20 is a laminate comprising a desiccant-containing resin film Z pattern printed film Z light-absorbing film Z transparent barrier film (FIG. 2 (d)).
- the first packaging material 10 is a laminate of transparent barrier film Z desiccant-containing resin film
- the second packaging material 20 is a laminate in which sealant film Z pattern printing film Z aluminum foil laminate film strength is also obtained.
- Body Fig. 2 (a)).
- the first packaging material 10 is a laminate of a transparent barrier film Z desiccant-containing resin film
- the second packaging material 20 is a laminate of sealant film / pattern printing film / aluminum evaporation film force. Yes (Fig. 2 (a)).
- the first packaging material 10 is a laminate of a transparent barrier film Z desiccant-containing resin film
- the second packaging material 20 is a sealant film / pattern printing film / aluminum evaporation film Z transparent barrier film. It is a powerful laminate (Fig. 2 (c)).
- the first packaging material 10 is a laminate of a transparent barrier film Z desiccant-containing resin film
- the second packaging material 20 is a sealant film Z pattern printing film Z light-absorbing film Z transparent barrier film strength (Fig. 2 (c)).
- the light absorption or light reflection film 24 using an aluminum foil laminate film shows excellent durability of moisture absorption, and both the first and second packaging materials are used.
- a film laminated with a desiccant-containing resin film shows good moisture absorption performance.
- Aluminum vapor-deposited films or light-absorbing films reach the saturation of the desiccant in the desiccant quickly compared to the aluminum foil laminated film because the PET film is the base material. It should be noted that excellent moisture absorption performance means that it takes a long time for the desiccant to reach saturation, and the durability of the desiccant absorbs moisture by adjusting its content. It can also be adjusted.
- the time when the desiccant of the desiccant in the desiccant-containing resin film reaches saturation is not less than the saturation time of the above embodiment, as long as it is not less than the dry state maintenance time required for the article to be stored.
- moisture-proof performance is required, increase the desiccant content of the desiccant-containing resin in the desiccant-containing resin film, increase the film thickness of the polyolefin resin laminated on the desiccant-containing resin, or use a transparent barrier film.
- the transparent barrier film 12, the pattern printing film 23, the desiccant-containing resin films 11, 21 and the like are shown in FIGS. 2 (a) to 2 (d) and FIG.
- This one layer includes films laminated by coextrusion or the like. Moreover, when oxygen barrier property or gas barrier property is required, when oil resistance or the like is required, it does not exclude that an optimum resin is appropriately selected and laminated by a co-extrusion method.
- packaging bag of the present invention can achieve a time of 100 days or more until the desiccant has reached saturation.
- the packaging bag of the present invention is a packaging bag for storing articles that are required to be in a dry state, and is effective as a packaging material for storing food, electronic parts, pharmaceuticals, books, and the like. Further, the desiccant with a moisture absorption indicator function of the present invention can be used as a desiccant by putting it in a container for storing food, electronic parts, pharmaceuticals, books and the like.
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- Engineering & Computer Science (AREA)
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- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/815,545 US7887894B2 (en) | 2005-02-07 | 2006-02-03 | Packaging bag and drying agent with moisture absorption indicator function |
CN2006800048019A CN101119898B (zh) | 2005-02-07 | 2006-02-03 | 具有吸湿指示功能的包装袋以及干燥剂 |
DE602006021144T DE602006021144D1 (de) | 2005-02-07 | 2006-02-03 | Verpackungsbeutel mit feuchtigkeitsabsorptions-anzeigefunktion sowie trocknungsmittel |
EP06713001A EP1849708B1 (en) | 2005-02-07 | 2006-02-03 | Packaging bag with moisture absorption indicator function and drying agent |
US12/967,198 US8268421B2 (en) | 2005-02-07 | 2010-12-14 | Packaging bag and drying agent with moisture absorption indicator function |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2005030999A JP4744890B2 (ja) | 2005-02-07 | 2005-02-07 | 包装袋 |
JP2005-030999 | 2005-02-07 | ||
JP2005-110522 | 2005-04-07 | ||
JP2005110522A JP4804783B2 (ja) | 2005-04-07 | 2005-04-07 | 吸湿インジケータ機能付き乾燥剤 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US11/815,545 A-371-Of-International US7887894B2 (en) | 2005-02-07 | 2006-02-03 | Packaging bag and drying agent with moisture absorption indicator function |
US12/967,198 Division US8268421B2 (en) | 2005-02-07 | 2010-12-14 | Packaging bag and drying agent with moisture absorption indicator function |
Publications (1)
Publication Number | Publication Date |
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WO2006082920A1 true WO2006082920A1 (ja) | 2006-08-10 |
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PCT/JP2006/301858 WO2006082920A1 (ja) | 2005-02-07 | 2006-02-03 | 吸湿インジケータ機能付き包装袋及び乾燥剤 |
Country Status (6)
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US (2) | US7887894B2 (ja) |
EP (1) | EP1849708B1 (ja) |
KR (1) | KR101068548B1 (ja) |
DE (1) | DE602006021144D1 (ja) |
TW (1) | TWI359689B (ja) |
WO (1) | WO2006082920A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112978087A (zh) * | 2021-02-22 | 2021-06-18 | 惠州市华星光电技术有限公司 | 垫片、显示面板包装结构及显示面板包装组合 |
WO2022145073A1 (ja) * | 2021-01-04 | 2022-07-07 | キヤノン電子管デバイス株式会社 | 放射線検出器 |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8110260B2 (en) | 2007-02-02 | 2012-02-07 | Rick Merical | Containers intended for moisture-sensitive products |
US7871558B2 (en) | 2002-06-20 | 2011-01-18 | Alcan Global Pharmaceutical Packaging, Inc. | Containers intended for moisture-sensitive products |
US8003179B2 (en) | 2002-06-20 | 2011-08-23 | Alcan Packaging Flexible France | Films having a desiccant material incorporated therein and methods of use and manufacture |
KR101045149B1 (ko) * | 2005-08-04 | 2011-06-30 | 가부시키가이샤 가네카 | 금속 피복 폴리이미드 필름 |
US20090155508A1 (en) * | 2007-12-14 | 2009-06-18 | Pactiv Corporation | Encapsulated Activated Carbon and the Preparation Thereof |
US20110127189A1 (en) * | 2008-01-04 | 2011-06-02 | Liao, Chieh Hua | Bendable multi-sectional cushioning cover bag |
US7781231B2 (en) | 2008-03-07 | 2010-08-24 | Qualcomm Incorporated | Method of forming a magnetic tunnel junction device |
EP2303566B1 (en) * | 2008-05-29 | 2014-01-29 | SMQ Group B.V. | A method of manufacturing a bag and a bag |
KR20110000580A (ko) * | 2008-06-25 | 2011-01-03 | 교도 인사쯔 가부시키가이샤 | 습도 지시기와 그 제조 방법 |
DE202010004909U1 (de) * | 2010-04-12 | 2011-08-05 | Absortech International Ab | Einrichtung zur Feuchtigkeitsabsorption |
CN103079967B (zh) * | 2010-09-01 | 2015-06-24 | 共同印刷株式会社 | 层积体、包装容器及包装体 |
WO2012029899A1 (ja) * | 2010-09-01 | 2012-03-08 | アステラス製薬株式会社 | 包装体 |
KR101137718B1 (ko) * | 2010-10-13 | 2012-04-19 | 이재봉 | 보관시간 알림 스티커 장치 |
US9709327B2 (en) * | 2011-03-17 | 2017-07-18 | Dry Ventures, Inc. | Rapid rescue of inundated cellphones |
US20120292204A1 (en) * | 2011-05-19 | 2012-11-22 | Todd Roy Tarras | Bag for treating water damaged cell phones |
US11713924B2 (en) | 2012-02-01 | 2023-08-01 | Revive Electronics, LLC | Methods and apparatuses for drying electronic devices |
US10240867B2 (en) | 2012-02-01 | 2019-03-26 | Revive Electronics, LLC | Methods and apparatuses for drying electronic devices |
US10690413B2 (en) | 2012-02-01 | 2020-06-23 | Revive Electronics, LLC | Methods and apparatuses for drying electronic devices |
US10876792B2 (en) | 2012-02-01 | 2020-12-29 | Revive Electronics, LLC | Methods and apparatuses for drying electronic devices |
US9513053B2 (en) | 2013-03-14 | 2016-12-06 | Revive Electronics, LLC | Methods and apparatuses for drying electronic devices |
US9970708B2 (en) | 2012-02-01 | 2018-05-15 | Revive Electronics, LLC | Methods and apparatuses for drying electronic devices |
US9486896B2 (en) * | 2012-06-28 | 2016-11-08 | Saint-Gobain Abrasives, Inc. | Abrasive article and coating |
JP6583658B2 (ja) * | 2012-11-01 | 2019-10-02 | スタープラスチック工業株式会社 | 易開封性包装体用の積層フィルム及び易開封性包装体 |
US10088230B2 (en) * | 2012-11-08 | 2018-10-02 | Tekdry International, Inc. | Dryer for portable electronics |
CN103171817A (zh) * | 2013-04-10 | 2013-06-26 | 赵秀雄 | 柔印耐高温食品塑料包装袋的制作方法 |
US11542080B2 (en) * | 2013-05-07 | 2023-01-03 | BBB Holding Company | Track and trace packaging and systems |
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US20150225126A1 (en) * | 2014-02-13 | 2015-08-13 | Gary L. Sharpe | Tamper evident unit dose packaging |
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WO2016109734A1 (en) | 2014-12-30 | 2016-07-07 | Saint-Gobain Abrasives, Inc. | Abrasive tools and methods for forming same |
KR102618068B1 (ko) * | 2015-01-13 | 2023-12-27 | 소니 세미컨덕터 솔루션즈 가부시키가이샤 | 고체 촬상 소자 및 그 제조 방법, 및 전자 기기 |
WO2016166592A1 (en) * | 2015-04-14 | 2016-10-20 | Savare' I.C. S.R.L. | Wetness indicator compositions comprising leuco dyes |
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US20180064143A1 (en) * | 2016-09-07 | 2018-03-08 | LaserSharp FlexPak Services, LLC | Modified atmosphere packaging of Perishable Produce |
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US11051587B2 (en) * | 2018-09-19 | 2021-07-06 | Chen Tai Laces Co., Ltd. | Multicolored aglet and method for producing the same |
WO2022159357A1 (en) | 2021-01-19 | 2022-07-28 | 3M Innovative Properties Company | Packaging for abrasive articles and methods of using the same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63193527U (ja) * | 1987-05-29 | 1988-12-13 | ||
JPH01144345U (ja) * | 1988-03-30 | 1989-10-04 | ||
JPH0585424U (ja) * | 1991-11-25 | 1993-11-19 | 匡夫 長瀬 | 吸湿器 |
JPH0619816U (ja) * | 1992-08-11 | 1994-03-15 | エステー化学株式会社 | 吸湿具 |
JPH06262028A (ja) * | 1993-03-15 | 1994-09-20 | S T Chem Co Ltd | 除湿剤組成物 |
JP2004331855A (ja) * | 2003-05-09 | 2004-11-25 | Toppan Printing Co Ltd | 吸湿機能かつインジケーター機能を有する樹脂組成物およびそれを用いた積層体、包装体 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63193527A (ja) | 1987-02-06 | 1988-08-10 | Mitsubishi Electric Corp | エツチング装置 |
JPS6428934A (en) | 1987-07-24 | 1989-01-31 | Hitachi Electr Eng | Wafer-positioning mechanism of surface inspection device |
JPS6428934U (ja) | 1987-08-14 | 1989-02-21 | ||
JPH0736686B2 (ja) | 1987-11-27 | 1995-04-19 | 三菱電機株式会社 | 誘導電動機 |
JPH0585424A (ja) | 1991-09-25 | 1993-04-06 | Aisin Seiki Co Ltd | 車上装備の駆動装置 |
JP2715815B2 (ja) | 1992-07-06 | 1998-02-18 | 日本電信電話株式会社 | デ−タ書き込み方法 |
US20040131805A1 (en) | 2002-06-20 | 2004-07-08 | Merical Rick L. | Films having a desiccant material incorporated therein and methods of use and manufacture |
JP4090811B2 (ja) | 2002-08-09 | 2008-05-28 | 大日本印刷株式会社 | 隠蔽層付き包装容器 |
US7743642B2 (en) | 2003-12-03 | 2010-06-29 | Kyodo Printing Co., Ltd. | Moisture absorbent material with indicator function, humidity indicator and packaging bag |
-
2006
- 2006-02-03 DE DE602006021144T patent/DE602006021144D1/de active Active
- 2006-02-03 US US11/815,545 patent/US7887894B2/en not_active Expired - Fee Related
- 2006-02-03 WO PCT/JP2006/301858 patent/WO2006082920A1/ja active Application Filing
- 2006-02-03 EP EP06713001A patent/EP1849708B1/en not_active Expired - Fee Related
- 2006-02-03 KR KR1020077020332A patent/KR101068548B1/ko not_active IP Right Cessation
- 2006-02-06 TW TW095103876A patent/TWI359689B/zh not_active IP Right Cessation
-
2010
- 2010-12-14 US US12/967,198 patent/US8268421B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63193527U (ja) * | 1987-05-29 | 1988-12-13 | ||
JPH01144345U (ja) * | 1988-03-30 | 1989-10-04 | ||
JPH0585424U (ja) * | 1991-11-25 | 1993-11-19 | 匡夫 長瀬 | 吸湿器 |
JPH0619816U (ja) * | 1992-08-11 | 1994-03-15 | エステー化学株式会社 | 吸湿具 |
JPH06262028A (ja) * | 1993-03-15 | 1994-09-20 | S T Chem Co Ltd | 除湿剤組成物 |
JP2004331855A (ja) * | 2003-05-09 | 2004-11-25 | Toppan Printing Co Ltd | 吸湿機能かつインジケーター機能を有する樹脂組成物およびそれを用いた積層体、包装体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1849708A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022145073A1 (ja) * | 2021-01-04 | 2022-07-07 | キヤノン電子管デバイス株式会社 | 放射線検出器 |
CN112978087A (zh) * | 2021-02-22 | 2021-06-18 | 惠州市华星光电技术有限公司 | 垫片、显示面板包装结构及显示面板包装组合 |
Also Published As
Publication number | Publication date |
---|---|
KR101068548B1 (ko) | 2011-09-30 |
US7887894B2 (en) | 2011-02-15 |
EP1849708B1 (en) | 2011-04-06 |
US8268421B2 (en) | 2012-09-18 |
TW200638985A (en) | 2006-11-16 |
DE602006021144D1 (de) | 2011-05-19 |
EP1849708A4 (en) | 2008-12-24 |
TWI359689B (en) | 2012-03-11 |
US20090022434A1 (en) | 2009-01-22 |
US20110089056A1 (en) | 2011-04-21 |
KR20070108893A (ko) | 2007-11-13 |
EP1849708A1 (en) | 2007-10-31 |
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