JP2007190325A - Portable cooling sheet and manufacturing method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily obtain a cooling sheet which maintains high cooling effects for a long period of time and appropriately adheres to an adhesion region of a body in a manner not to be detached easily in a portable cooling sheet having the cooling sheet housed in a housing container. <P>SOLUTION: In the portable cooling sheet equipped with the cooling sheet 10 having a release sheet 13 adhering to an adhesive layer 12, which uses a non-soluble adhesive agent and is provided on a surface on the opposite side of a retaining sheet 11 where an aqueous gel body 14 of high moisture content and low tackiness is formed, in a manner to be detached and the housing container 20 having a flange part 22 on the periphery of a housing recess 21, the release sheet is formed to be larger than the retaining sheet and the aqueous gel body so that the aqueous gel body and the retaining sheet are housed in the housing recess in a manner that the aqueous gel body is located on the bottom side of the housing recess, and a closing member adheres to a flange part of the housing container in a manner to cover the release sheet protruding from the housing recess to the side of the flange part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable cooling sheet and a method for manufacturing the portable cooling sheet, and in particular, in a portable cooling sheet in which a cooling sheet is accommodated in a container, a high cooling effect can be maintained for a long time and the body can be prevented from being easily peeled off. It is characterized in that a cooling sheet that can be appropriately applied to the application site can be easily obtained.

  In recent years, a cooling sheet in the form of a sheet has been used for the purpose of cooling the fever and the inflamed site, and moisturizing and refreshing the skin.

  As the cooling sheet in such a sheet form, generally, an olefin-based nonwoven fabric or the like provided with an adhesive hydrogel in which water is held in a water-soluble polymer such as polyacrylic acid is used. ing.

  Here, in the case of the cooling sheet provided with the above-mentioned adhesive water-containing gel, the adhesive sheet containing the above-mentioned adhesive water-containing gel can be directly attached to the sticking part of the body, and the cooling sheet can be used with this adhesive water-containing gel. Was sufficiently affixed to the affixed site, and the cooling sheet was not easily detached from the affixed site.

  However, in the case of the above-mentioned adhesive water-containing gel, there is a problem that in general, water cannot be sufficiently retained, and a high cooling effect cannot be maintained for a long time.

  On the other hand, when the water content in the water-containing gel as described above is increased to increase the cooling effect, the adhesiveness of the water-containing gel is greatly reduced, and the adhesion of the cooling sheet to the application site is reduced. When the thickness of the hydrated gel is increased for long-term use, there is a problem that the cooling sheet can be easily detached from the pasted site.

  For this reason, in recent years, a cooling sheet obtained by impregnating a gel of a water-soluble polymer material having a moisture content of 90% by weight or more in a non-woven fiber layer coated with an adhesive on one side is provided in a storage container. There has been proposed a portable cooling sheet that is housed in a recess and the opening of the housing recess is closed by a closing member (see, for example, Patent Document 1).

However, like the cooling sheet in the portable cooling sheet, when the water-soluble polymer material gel is impregnated in the fiber layer of the nonwoven fabric, the amount of the gel that can be impregnated in the fiber layer is reduced. However, it was still difficult to maintain a high cooling effect for a long time.
JP 2002-248121 A

  An object of the present invention is to solve the above-described problems in the cooling sheet, and in the portable cooling sheet in which the cooling sheet is housed in the housing container, a high cooling effect can be maintained for a long time, and simple. It is an object of the present invention to easily obtain a cooling sheet that can be appropriately affixed to the affixing site of the body without being peeled off.

  In the portable cooling sheet according to the present invention, in order to solve the above-described problems, a water-insoluble material provided on the opposite surface of the holding sheet on which the water-containing gel body having a high water content and a low viscosity is formed. A portable cooling sheet comprising a cooling sheet in which a release sheet is detachably attached to an adhesive layer using an adhesive, and a storage container provided with a collar around the storage recess. The release sheet is formed larger than the holding sheet and the water-containing gel body, and the water-containing gel body and the holding sheet are placed in the housing recess so that the water-containing gel body in the cooling sheet is positioned on the bottom side of the housing recess. It was made to accommodate, and the closure member was stuck on the collar part of the storage container so that the peeling sheet protruded from the accommodation recessed part to the collar part side might be covered.

  Here, in the portable cooling sheet in the present invention, an accommodation step portion for accommodating the release sheet protruding from the accommodation recess can be provided in the collar portion of the accommodation container.

  Moreover, in the portable cooling sheet in this invention, it is preferable that at least a part of the release sheet in the cooling sheet is attached to the closing member.

  Further, in the portable cooling sheet of the present invention, a convex portion that extends from the bottom of the housing recess in the housing container to the holding sheet through the water-containing gel body in the cooling sheet is formed, and the water-containing gel body in the cooling sheet It is preferable to provide a hole that penetrates through.

  Here, the water-containing gel body preferably has a water content of 65% by weight or more, more preferably a water content of 90% by weight or more in order to obtain a high cooling effect for a long time. To use. The upper limit of the moisture content is not particularly limited, but is considered to be about 99% by weight from the viewpoint of the shape retention of the above-mentioned hydrogel body. And when the moisture content in a hydrogel body is raised in this way, the adhesiveness of a hydrogel body will fall.

  Further, as the material for the above-mentioned hydrogel body, a water-soluble polymer having high water retention and excellent shape retention is used, and this water-soluble polymer may be either synthetic or natural. In particular, it is preferable to use a natural water-soluble polymer excellent in water retention and shape retention, such as carrageenan, gelatin, pectin, locust bean gum, xanthan gum, gellan gum, Ernest gum, agarose, dextrin, glucomannan. Polyglutamic acid and a salt thereof can be used. In addition, synthetic polymers can be mixed with these natural polymers. Suitable synthetic polymers include, for example, polyacrylic acid, sodium polyacrylate, carboxyvinyl polymer, polyvinyl alcohol, polyvinylpyrrolidone, carboxy Examples include methyl cellulose, Ernest gum, methyl cellulose, hydroxypropyl cellulose, and hydroxypropyl methyl cellulose, but are not particularly limited thereto.

  In addition, aroma oils and pharmacologically active substances are contained in the above hydrogel body, and these substances are gradually transmitted from the cooling sheet to the affixed part of the body so that the effects of these substances can be obtained together with the cold and moisturizing effects. It can also be.

  Here, as the aroma oil, essential oil components (essential oils) generally used for aromatherapy can be used as they are. Examples of the essential oil component include those described in Wonder Cellar “84 essential oil components for aromatherapy”, Fragrance Journal. Specifically, Anise, Angelica, Benzo, Immortelle, Chamomile, Garlic, Cardamom, Galvanam, Caraway, Carrot Seed, Guayac Wood, Grapefruit, Cybless, Cedarwood, Star Anise, Sage, Geranium, Celery, Thyme, Tarragon, Terpin , Frankincense, violet, pine, parsley, fennel, black pepper, bodaiju flower, lemon, lemongrass, rosemary, laurel, shimotsukegiku, shimotsueso, cornflower, almond, arnica, fennel, enishida, watercress, gentian, ginger, plum Pear, seaweed, dandelion, chimo, chorei, capsicum, green rose, mint, ash, bullock, melissa, peach, mistletoe, eucalyptus, yokuinin, Vendor, there may be mentioned extracts from forsythia, and the like otherwise thereto. Examples of other oil components include liquid paraffin, silicone oil, coconut oil, macadamia oil, sucurawan, olive oil, orange oil, jojoba oil, and the like.

  Further, the pharmacologically active substance may overlap with the above-mentioned aroma oil, such as menthol, camphor, indomethacin, ketoprofen, diclofenac, psyllium extract, dipotassium glycyrrhizinate, hyaluronic acid, arbutin, tocopherol acetate, allantoin, vitamin C, water-soluble Sex azulene, acrinol and the like.

  In addition to the above, vitamins such as vitamins A, B, C, and E, minerals such as selenium and zinc, fruit extracts such as apples, oranges, lemons, and kiwis, fruit juices, and the like can be appropriately contained. .

  The holding sheet may be any sheet as long as the hydrated gel body penetrates and is sufficiently held, for example, a fibrous body such as a nonwoven fabric or a woven fabric using various fibers, or a fiber such as paper. Structures can be used.

  Moreover, as a water-insoluble adhesive used for said adhesive layer, various water-insoluble adhesives, such as an acrylic adhesive, a rubber adhesive, a vinyl ether adhesive, can be used, for example.

  Here, as said acrylic adhesive, what combined the following main monomer and submonomer is mentioned. Examples of the main monomer include ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, octyl acrylate, isooctyl acrylate, decyl acrylate, decyl methacrylate, dodecyl acrylate, dodecyl methacrylate, and the like. Further, examples of the secondary monomer include acrylic acid, vinyl acetate, methyl acrylate, methyl methacrylate, maleic anhydride, 2-hydroxyethyl acrylate, and the like.

  Moreover, as a rubber-type adhesive, what combined the following elastomer and tackifier is mentioned. Examples of the elastomer include natural rubber, synthetic polyisoprene rubber, styrene / butadiene rubber, styrene / isoprene block copolymer, polyisobutylene, butyl rubber, SIS, SBR, and SBRS. Examples of tackifiers include rosin, hydrogenated rosin, rosin ester, hydrogenated rosin ester, polyterpene, terpene phenol, phenol resin, xylene resin, coumarone indene resin, other aliphatic resins (C5 resins), petroleum Resin, alicyclic hydrocarbon resin (hydrogenated aromatic resin), and the like.

  In addition, softeners (plasticizers), absorption accelerators, polyhydric alcohols, silicone oils, inorganic fillers, antioxidants (ultraviolet absorbers), and the like are added to the above-mentioned pressure-sensitive adhesive as necessary. be able to.

  Here, as the softening agent (plasticizer), polybutene, polyisobutylene, dioctyl phthalate, dibutyl phthalate, diethyl phthalate, liquid rosin ester, chlorinated paraffin, process oil, lanolin, IPM, silicone, petrolatum, solid paraffin, Liquid paraffin, plaster pace, beeswax, menthol, limonene, pinene, piperiton, terpinol, carveol, almond oil, olive oil, camellia oil, persic oil, peppermint oil, sesame oil, soybean oil, mink oil, cottonseed oil, corn oil, safflower Oil, grape oil, macadamia nut oil, egg yolk oil, safflower oil and the like.

  Further, the above absorption enhancer promotes absorption of active ingredients such as medicinal ingredients and cosmetic ingredients, and many of them overlap with the above softeners, and lanolin, liquid paraffin, beeswax, menthol, limonene, pinene. , Piperitone, terpinol, carveol, jojoba oil, almond oil, olive oil, camellia oil, persic oil, mint oil, sesame oil, soybean oil, mink oil, cottonseed oil, corn oil, safflower oil, grape oil, macadamia nut oil, egg yolk oil, Examples include safflower oil.

  Examples of the polyhydric alcohols include glycerin, propylene glycol, octanediol, polyethylene glycol, D-sorbit, crotamiton and the like.

  Examples of the silicone oil include methyl siloxane, methyl phenyl polysiloxane, and dodecamethyl polysiloxane.

  Examples of the inorganic filler include zinc oxide, titanium oxide, and calcium carbonate.

  Moreover, BHT, DTBHQ, etc. are mentioned as said antioxidant (ultraviolet absorber).

  Moreover, as said adhesive layer, it is preferable to use what filled said water-insoluble adhesive in the opening part of a highly heat conductive sheet base material which has many opening parts.

  Here, the sheet base material having a large number of openings and high thermal conductivity includes a mesh having mesh openings or a metal-plated mesh, or a metal or surface plated with metal. A sheet provided with openings made up of a number of through holes can be used.

  Further, in the method for manufacturing a portable cooling sheet according to the present invention, the fluid gel composition is filled in the housing recess of the housing container provided with the flange around the housing recess, and the fluid gel composition is provided. Before curing the release sheet, the release sheet that is larger than the release sheet is attached to the release layer with an adhesive layer using a water-insoluble adhesive, and the surface opposite to the release sheet is the gel composition described above. The closure member is attached to the buttock of the storage container so as to cover the release sheet protruding from the housing dent toward the buttock side, and the gel composition is By curing, a water-containing gel body having a high water content and low adhesiveness was formed on the surface of the holding sheet in contact with the gel composition.

  Here, in the manufacturing method of the portable cooling sheet in the present invention, before the gel composition is cured, the closure member is covered with the release sheet protruding from the housing recess to the buttock side and surrounding the housing recess. It is preferable that the above-mentioned container is turned upside down so that the gel composition is positioned on the holding sheet, and the gel composition is cured in this state.

  In addition, when filling the flowable gel composition into the storage recess of the storage container as described above, at least the surface is hydrophilic by mixing the flowable gel composition with fibers having at least a hydrophilic surface. It is preferable to form a water-containing gel body in which fibers having a weight are dispersed. Such fibers include, for example, pulp, microfibrous cellulose, cotton yarn, rayon, and other various hydrophilic resin fibers, as well as various hydrophobic resin fibers whose surfaces have been subjected to hydrophilic treatment, and glass fibers. -Ceramic fiber etc. are mentioned, but it is not limited to these.

  Moreover, it is preferable to use what formed the convex part which penetrates the hydrogel body in said cooling sheet from the bottom part of the said accommodation recessed part, and reaches a holding | maintenance sheet as said accommodation container.

  In the portable cooling sheet of the present invention, the blocking member attached to the collar provided around the housing recess is removed so as to cover the release sheet protruding from the housing recess toward the collar, and this The cooling sheet is taken out from the housing recess, and the release sheet provided on the cooling sheet is peeled off.

  When the release sheet is peeled in this way, the release sheet is formed larger than the holding sheet and the hydrogel as described above, and the peripheral portion protrudes from the holding sheet, so that the release sheet can be easily peeled off. It becomes like this. Further, when at least a part of the release sheet is adhered to the closing member, the release sheet is also peeled from the cooling sheet when the closing member is removed.

  Then, the cooling sheet in which the release sheet is peeled in this way and the water-containing gel body having a high water content and low adhesiveness is formed on the holding sheet is formed by the adhesive layer using the water-insoluble adhesive. It is made to stick on the sticking part.

  In this way, even in the case of a cooling sheet using a high moisture content and low-adhesion water-containing gel body, the water-containing gel body is appropriately held on the holding sheet, and the sticking of the body is performed by the above-mentioned adhesive layer. The cooling sheet is not easily detached from the application site, and the moisture contained in the high moisture content hydrogel is passed through the holding sheet to the adhesive layer. It penetrates and the cooling effect due to moisture is transmitted to the application site, and a high cooling effect can be obtained for a long time.

  Further, when the above-mentioned pressure-sensitive adhesive layer is prepared by filling a non-water-soluble pressure-sensitive adhesive into the openings of a highly heat-conductive sheet base material having a large number of openings, the above-mentioned high water content hydrous gel body The cooling effect due to the moisture contained in the water is transmitted to the application site through the sheet base material having a high thermal conductivity, so that a higher cooling effect can be obtained.

  In addition, when fibers having at least a hydrophilic surface are dispersed in the hydrated gel body, moisture moves smoothly through the hydrated gel body through the fibers, so that a higher cooling effect can be obtained. become.

  Further, like the method for manufacturing a portable cooling sheet in the present invention, the release sheet larger than the holding sheet is water-insoluble before the fluid gel composition filled in the storage recess of the storage container is cured. When the holding sheet, which is detachably attached by the pressure-sensitive adhesive layer using the pressure-sensitive adhesive, is housed in the housing recess so that the surface opposite to the peeling sheet is in contact with the gel composition, the gel before curing The composition penetrates into the holding sheet, the gel composition that has penetrated into the holding sheet in this way is cured, and the hydrogel body is firmly held by the holding sheet. In particular, before the gel composition is cured, the closure member is attached to the buttock of the receiving container so as to cover the release sheet protruding from the receiving recess to the buttock side, and the receiving container is turned upside down. When the above gel composition is positioned on the holding sheet, more gel composition before curing penetrates into the holding sheet and is cured, so that the hydrogel body is more firmly held on the holding sheet. Become.

  Further, when manufacturing a portable cooling sheet as described above, a convex part that penetrates the hydrous gel body in the cooling sheet from the bottom of the accommodating concave part to the holding sheet is formed as the accommodating container. As described above, the fluidity gel composition is filled into the accommodating recess as described above, and before the fluidity gel composition is cured, the holding sheet is placed on the surface opposite to the release sheet. When the container is accommodated in the accommodating recess so as to be in contact with the gel composition, the holding sheet is held so as not to be slackened by the convex portion protruding from the bottom of the accommodating recess, and the gel composition is retained. The water-containing gel body is firmly held by the holding sheet.

  Moreover, when a portable cooling sheet is manufactured using a storage container in which a convex portion extending from the bottom of the housing recess to the holding sheet through the water-containing gel body in the cooling sheet is formed, the water-containing gel body is penetrated. Then, a cooling sheet in which a hole leading to the holding sheet is formed can be obtained, and when this cooling sheet is applied to a sticking part of the body with an adhesive layer using a water-insoluble adhesive as described above, The evaporation of moisture in the hydrated gel body is promoted through the hole through the hydrated gel body, efficient heat dissipation is performed, and a cooling effect can be obtained even higher.

  Hereinafter, a portable cooling sheet and a method for manufacturing the same according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. The portable cooling sheet and the manufacturing method thereof according to the present invention are not particularly limited to those shown in the following embodiments, and can be appropriately modified and implemented without changing the gist thereof.

  In the portable cooling sheet of this embodiment, as shown in FIGS. 1 (A) and 1 (B), the collar portion 22 provided around the housing concave portion 21 having a planar square shape whose upper surface is opened is provided with the above-mentioned The storage container 20 in which the storage step portion 22a that is one step lower along the peripheral edge of the storage recess portion 21 is formed is used.

  Further, in the portable cooling sheet of this embodiment, as shown in FIGS. 2A and 2B, the holding sheet 11 is formed on one side of the holding sheet 11 having a planar square shape corresponding to the planar shape of the housing recess 21. In attaching the release sheet 13 to the provided adhesive layer 12 using a water-insoluble adhesive so as to be peelable, the release sheet 13 has a planar rectangular shape corresponding to the peripheral shape of the housing step 22a. The peripheral portion of the release sheet 13 was projected from the holding sheet 11.

  Here, in manufacturing the portable cooling sheet of this embodiment, as shown in FIG. 3 (A), supplying the fluid gel composition 14a into the housing recess 21 in the housing container 20, The flowable gel composition 14a was filled into the housing recess 21. And before this gel composition 14a hardens | cures, as shown to the same figure (B), said holding sheet 11 is made to contact with the gel composition 14a with which the accommodation recessed part 21 was filled, and this holding | maintenance is carried out. The sheet 11 is accommodated in the accommodating recess 21, and the release sheet 13 is accommodated in the accommodating step portion 22 a that is lowered by one step along the peripheral edge of the accommodating recess 21. The closing member 23 made of a conductive sheet was stuck to the collar portion 22 of the storage container 20 to seal the storage recess 21. Furthermore, before the gel composition 14a is cured, the container 20 is turned upside down to position the gel composition 14a on the holding sheet 11, as shown in FIG. In this state, the gel composition 14a was cured, and the water-containing gel body 14 having a high water content and low adhesion was formed so as to be in close contact with the holding sheet 11.

  Here, before the gel composition 14a is cured as described above, when the container 20 is turned upside down and the gel composition 14a is positioned on the holding sheet 11, the gel composition 14a is held. The sheet 11 was sufficiently penetrated and cured to obtain the cooling sheet 10 in which the hydrated gel body 14 was firmly held by the holding sheet 11.

  And in using the said cooling sheet | seat 10 in the portable cooling sheet | seat of this embodiment, as shown in FIG. 4, it was made to stick on the collar part 22 of the storage container 20 so that the peeling sheet 13 might be covered. The closing member 23 was peeled off, and the cooling sheet 10 was taken out from the storage container 20.

  Here, as shown in FIG. 5, the cooling sheet 10 taken out in this way is a water-insoluble solution provided on the opposite surface of the holding sheet 11 on which the water-containing gel body 14 having a high water content and low adhesion is formed. The release sheet 13 is detachably attached to the adhesive layer 12 using a conductive adhesive.

  When the cooling sheet 10 is applied to the body application site, the release sheet 13 is released, and the cooling sheet 10 is attached to the body by the adhesive layer 12 using the water-insoluble adhesive. Make sure to attach to the application site.

  If it does in this way, the water | moisture content contained in said hydrous gel body 14 osmose | permeates said adhesive layer 12 through said holding sheet 11, and the cooling effect by a water | moisture content is transmitted to a sticking site | part through this adhesive layer 12, and high cooling is carried out. The effect can be obtained for a long time. In the cooling sheet 10, the water-containing gel body 14 is sufficiently held by the holding sheet 11, and the water-insoluble adhesive provided on the holding sheet 11 is used for the water-containing gel body 14. Thus, the adhesive layer 12 is appropriately attached to the application site, and the cooling sheet 10 is not easily detached from the application site.

  When removing the cooling sheet 10 from the storage container 20 by peeling off the closing member 23 adhered to the flange portion 22 of the storage container 20 as described above, at least a part of the release sheet 13 is closed as described above. When pasted on the member 23, the release sheet 13 is blocked as shown in FIG. 6 when the closure member 23 stuck on the collar portion 22 of the storage container 20 is peeled off so as to cover the release sheet 13. The sheet 23 is pulled together with the member 23 to be peeled off from the cooling sheet 10, and the cooling sheet 10 can be taken out from the storage container 20 in a state where the peeling sheet 13 is peeled off.

  In this embodiment, the storage container 20 is provided with a storage recess 21 having a planar square shape. However, the planar shape of the storage recess 21 in the storage container 20 is as described above. It is not limited, It can change corresponding to the sticking site | part etc. of the body to which the cooling sheet 10 is stuck.

  For example, as shown in FIG. 7, the planar shape of the accommodating recess 21 is formed in a shape corresponding to the person's forehead, and the cooling sheet 10 having a shape corresponding to the forehead as shown in FIG. 8 can be obtained. Further, as shown in FIG. 9, the planar shape of the accommodating recess 21 is formed into a substantially bowl shape with the center part constricted and both side parts widened, and the cooling sheet 10 having a substantially bowl shape as shown in FIG. 10 is formed. Obtainable. Note that when the cooling sheet 10 is affixed to the neck so that both sides of the cooling sheet 10 having the substantially bowl shape cover the carotid artery, the cooling sheet 10 can be used even when the neck is twisted. Can be prevented from coming off easily, and the carotid arteries are cooled by the widened side portions, so that a sufficient cooling effect can be obtained even during sudden heat generation.

  Further, in the above embodiment, when the fluid gel composition 14a is supplied into the housing recess 21 to obtain the cooling sheet 10, as shown in FIG. 11, at least the surface of the fluid gel composition 14a has a surface. Hydrophilic fibers 15 are dispersed and filled in the accommodating recesses 21, the gel composition 14a is cured, and at least the surface has hydrophilic fibers 15 dispersed therein. It is also possible to form the gel body 14.

  Then, when the cooling sheet 10 in which the fibers 15 having at least a hydrophilic surface are dispersed in the water-containing gel body 14 having a high water content and a low adhesion is pasted on a body sticking site, the water-containing gel body 14 Moisture contained in the hydrated gel body 14 is efficiently transferred through the fibers 15 dispersed in the above, and a higher cooling effect can be obtained.

  Further, in this embodiment, the holding sheet 11 is detachably pasted onto the release sheet 13 by the adhesive layer 12 using a water-insoluble adhesive. As the adhesive layer 12, FIG. As shown in (A) and (B), a sheet base material 12a having a high thermal conductivity formed with a mesh-shaped opening 12b is used, and the opening 12b in the sheet base 12a is in the opening 12b. It is also possible to use one filled with a water-insoluble adhesive 12c.

  Then, the cooling sheet 10 is attached to the body application site by the adhesive layer 12 in which the mesh-shaped opening 12b of the sheet base material 12a having high heat conductivity is filled with the water-insoluble adhesive 12c. And the cooling effect by the water | moisture content contained in said hydrous gel body 14 is transmitted to a sticking site | part through said sheet base material 12a with high heat conductivity, and a higher cooling effect comes to be acquired.

  Further, in this embodiment, a storage container 20 in which a storage step portion 22a that is one step lower along the peripheral edge of the storage recess portion 21 is formed on the flange portion 22 provided around the storage recess portion 21 is used. Although the release sheet 13 is accommodated in the accommodation step 22a, as shown in FIGS. 13A and 13B, a storage container 20 in which the above-described accommodation step 22a is not formed may be used.

  And when manufacturing a portable cooling sheet | seat using the above storage containers 20, as shown in FIG. 14, the fluid gel composition with which the storage recessed part 21 in the said storage container 20 was filled. The holding sheet 11 is accommodated in the accommodating recess 21 so that the holding sheet 11 is in contact with the gel composition 14a filled in the accommodating recess 21 before the curing of the release sheet 14a. 13 is set on the flange portion 22 of the storage container 20, and the closing member 23 made of an airtight sheet is adhered to the flange portion 22 of the storage container 20 so as to cover the release sheet 13. To be sealed.

  Further, in the portable cooling sheet in the above embodiment, as the storage container 20, as shown in FIGS. 15 (A) and 15 (B), a shape slightly contracted upward from the bottom of the storage recess 21. Further, it is possible to use a plurality of convex portions 21a (five in the example shown in the figure) provided from the bottom of the housing concave portion 21 to the vicinity of the upper surface opened.

  Then, the fluid gel composition 14a is supplied into the storage recess 21 in the storage container 20, and the gel composition in which the holding sheet 11 is filled in the storage recess 21 before the gel composition 14a is cured. When the release sheet 13 is accommodated in the accommodation step 22 a that is lowered along the periphery of the accommodation recess 21 while being accommodated in the accommodation recess 21 so as to come into contact with the object 14 a, the holding sheet 11 is provided. Is held by the convex portions 21a provided in the accommodating concave portion 21 so as not to be slackened, and the gel composition 14a is uniformly contacted and penetrated into the holding sheet 11.

  Then, as shown in FIG. 16, the release member 13 is covered so that the closing member 23 made of an airtight sheet is adhered to the flange portion 22 of the storage container 20, and the storage recess 21 is hermetically sealed. When the gel composition 14 a is cured, the water-containing gel body 14 having a high water content and low adhesion is sufficiently adhered to the holding sheet 11.

  Further, when the release sheet 13 is peeled from the storage container 20 and the cooling sheet 10 is taken out of the storage container 20, as shown in FIG. 17, corresponding to the convex portion 21a in the storage recess 21, A plurality of holes 16 extending through the water-containing gel body 14 and reaching the holding sheet 11 are formed in the cooling sheet 10, and the cooling sheet 10 is bonded to the adhesive layer 12 using the water-insoluble adhesive. If it sticks to the sticking site | part of a body by this, the evaporation of the water | moisture content in the water-containing gel body 14 will be accelerated | stimulated through the hole part 16 through the water-containing gel body 14, efficient heat dissipation will be performed, and the cooling effect will be obtained further. Be able to.

It is the schematic plan view and schematic sectional drawing of a storage container used for the portable cooling sheet in one Embodiment of this invention. In said embodiment, it is the schematic plan view and schematic sectional drawing which showed the state which stuck the peeling sheet to the adhesion layer using the water-insoluble adhesive provided in the single side | surface of the holding sheet so that peeling was possible. In said embodiment, it is the schematic sectional drawing which showed the process of manufacturing a portable cooling sheet. In the portable cooling sheet of said embodiment, it is the schematic sectional drawing which showed the state which peeled off the closure member stuck on the collar part of the storage container so that a peeling sheet might be covered. In the portable cooling sheet of the above embodiment, it is a schematic cross-sectional view of the cooling sheet taken out from the storage container. In the portable cooling sheet in the above embodiment, at least a part of the release sheet is attached to the closing member, and is a schematic cross-sectional view showing a state in which the release sheet is peeled from the cooling sheet together with the closing member. In said embodiment, it is the schematic plan view which showed the 1st modification of the storage container used for a portable cooling sheet. It is a schematic plan view of the cooling sheet | seat manufactured using the storage container concerning said 1st modification. In said embodiment, it is the schematic plan view which showed the 2nd modification of the storage container used for a portable cooling sheet. It is a schematic plan view of the cooling sheet | seat manufactured using the storage container concerning said 2nd modification. In the portable cooling sheet in the above-described embodiment, it is a schematic cross-sectional view showing a state in which fibers having at least a hydrophilic surface are dispersed in a hydrous gel body having a high water content and low adhesion. In said embodiment, it is the schematic plan view and schematic sectional drawing which showed the example of a change of the adhesion layer which sticks a holding sheet on a peeling sheet so that peeling is possible. In said embodiment, it is the schematic plan view and schematic sectional drawing which showed the 3rd modification of the storage container used for a portable cooling sheet. It is the schematic sectional drawing which showed the state which manufactures a portable cooling sheet using the storage container concerning said 3rd modification. In said embodiment, it is the schematic plan view and schematic sectional drawing which showed the 4th modification of the storage container used for a portable cooling sheet. It is the schematic sectional drawing which showed the state which manufactures a portable cooling sheet using the storage container concerning said 4th modification. It is a schematic sectional drawing of the cooling sheet | seat manufactured using the storage container concerning said 4th modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cooling sheet 11 Holding sheet 12 Adhesive layer 12a Sheet base material 12b Opening part 12c Adhesive 13 Release sheet 14 Hydrous gel body 14a Gel composition 15 Fiber 16 Hole part 20 Container 21 Receiving recessed part 21a Convex part 22 Butt part 22a Housing stage Part 23 Blocking member

Claims (10)

  A cooling sheet in which a release sheet is detachably attached to an adhesive layer using a water-insoluble adhesive provided on the opposite surface of a holding sheet on which a high moisture content and low-adhesive hydrous gel is formed And a portable cooling sheet provided with a container provided with a flange around the housing recess, the release sheet in the cooling sheet is formed larger than the holding sheet and the hydrogel body, and the water content in the cooling sheet The hydrogel body and the holding sheet are accommodated in the accommodation recess so that the gel body is positioned on the bottom side of the accommodation recess, and the release sheet protruding from the accommodation recess to the buttock side is covered. The portable cooling sheet is characterized in that the closing member is attached to the buttocks of the storage container.   2. The portable cooling sheet according to claim 1, wherein a housing step portion for housing the release sheet protruding from the housing recess is provided in the collar portion of the housing container.   The portable cooling sheet according to claim 1 or 2, wherein at least a part of the release sheet in the cooling sheet is attached to the closing member.   The portable cooling sheet according to any one of claims 1 to 3, wherein a fiber having at least a hydrophilic surface is dispersed in the hydrated gel body. .   The portable cooling sheet according to any one of claims 1 to 4, wherein the adhesive layer in the cooling sheet is water-insoluble in the openings of the sheet base material having a large number of openings and a high thermal conductivity. A portable cooling sheet characterized by being filled with an adhesive.   The portable cooling sheet according to any one of claims 1 to 5, wherein a convex portion that penetrates the hydrogel body in the cooling sheet and reaches the holding sheet from the bottom of the accommodating concave portion in the accommodating container. A portable cooling sheet which is formed.   A fluidity gel composition is filled in a housing recess in a housing container provided with a flange around the housing recess, and before the fluid gel composition is cured, a release sheet larger than the holding sheet is not While holding the releasably attached holding sheet by the pressure-sensitive adhesive layer using a water-soluble pressure-sensitive adhesive, the surface opposite to the release sheet is brought into contact with the gel composition while being housed in the housing recess. On the surface of the holding sheet that comes into contact with the gel composition, the closure member is attached to the collar of the container so as to cover the release sheet protruding from the housing recess toward the collar, and the gel composition is cured. A method for producing a portable cooling sheet, comprising forming a water-containing gel body having a high water content and low adhesion.   7. The method for manufacturing a portable cooling sheet according to claim 6, wherein, before the gel composition is cured, the closure member covers the release sheet protruding from the housing recess to the buttocks side and covers the buttocks of the housing container. And the container is turned upside down so that the gel composition is positioned on the holding sheet, and the gel composition is cured in this state. Method.   In the manufacturing method of the portable cooling sheet | seat described in Claim 7 or Claim 8, the fiber which has hydrophilic property at least in a surface is mixed with said fluid gel composition, and the fiber which has hydrophilic property at least in the surface is obtained. The manufacturing method of the portable cooling sheet | seat characterized by forming the dispersed hydrous gel body.   In the method for manufacturing a portable cooling sheet according to claim 7 or claim 8, a storage container provided with a convex portion extending from the bottom of the storage concave portion to the holding sheet through the hydrated gel body is used. A method for manufacturing a portable cooling sheet.

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