JP3923674B2 - Cooling gel sheet kit - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
  The present invention is a cooling gel sheet kit to be applied when heat is generated.And how to use itAbout. More specifically, the present invention is a cooling gel sheet kit capable of maintaining a cooling action for a long time.And how to use itRelated.
[0002]
[Prior art]
In the case of sudden fever, etc. of infants, it is a treatment method that has been practiced for a long time to cool a wet cloth. However, such moisture-containing cloth has a short cooling time and needs to be replaced frequently, and it is only placed on the forehead and is not sticky to the skin. It was necessary to replace the wet cloth.
[0003]
Under such circumstances, a cooling gel sheet in which a water retaining layer made of a contained polymer gel is provided on a support such as a nonwoven fabric has been developed and is already on the market. Such a cooling gel sheet is sticky to a cooling part such as the forehead because the water-containing polymer gel is sticky, so that it does not peel off even if the infant moves, and the cooling gel sheet has a cooling time as it is. Can be left unattended.
[0004]
Such a cooling gel sheet is composed of a support formed of a nonwoven fabric or the like, and a water-containing polymer gel layer provided on the surface of the support, and the evaporation of water when water in the water-containing polymer gel layer evaporates. Cool by heat. Therefore, as the amount of water contained in the water-containing polymer gel layer increases, the cooling time becomes longer.
[0005]
Such a water-containing polymer gel layer is generally formed by blending a water-containing polymer such as gelatin or glycerin with a highly water-containing polymer such as an acrylic resin-based water-absorbing polymer. The water content of this layer is usually Is about 70 to 90% by weight. The cooling time by the water-containing polymer gel layer having such a water content is about 2 hours. If the water content is further increased, the allowable water content of the water-absorbing polymer will be exceeded, and the stability of the water-containing polymer gel layer will deteriorate, for example, the water-absorbing polymer gel layer will stick to the skin side, etc. Inconvenience arises.
[0006]
Therefore, it was necessary to replace the conventional cooling gel sheet approximately every 2 hours. In addition, recently, a cooling gel sheet has started to be marketed in which a high water-absorbing polymer is used to increase the water content of the water-containing polymer gel layer and the cooling capacity is maintained for about 4 hours. The polymer gel layer is unstable, and the water-containing polymer gel sticks to the skin side and remains on the skin surface. Also, when actually used, the cooling time is not so long compared to the conventional cooling gel sheet. .
[0007]
OBJECT OF THE INVENTION
An object of the present invention is to provide a cooling gel sheet kit having a long cooling time. More specifically, an object of the present invention is to provide a cooled gel sheet kit that can contain moisture beyond the water-containing ability of the water-containing polymer and has a long cooling time.
[0008]
Another object of the present invention is to provide a new method for using such a cooling gel sheet kit.
[0009]
SUMMARY OF THE INVENTION
  The cooling gel sheet kit of the present invention is a cooling gel sheet comprising a support (a) and a hydrogel layer disposed on at least one surface of the support (a),
  Support (b) And the support (b) And a water supply layer having a water supply layer containing water that can be supplied to the cooling gel sheet by being disposed on the side of the cooling gel sheet that is not attached to the adherend. And consist of
The water content of the water supply layer in the water supply sheet is higher than the water content of the water-containing gel sheet in the cooling sheet,
The cooling gel sheet and the water supply sheet are accommodated in a single moisture blocking package, and the water supply sheet can prevent moisture from evaporating even after the moisture blocking package is opened to take out the cooling gel sheet. As such, the cooling gel sheet is packaged separatelyIt is characterized by that.
[0010]
  The cooling gel sheet kit of the present inventionHow to use the support (a) And the support (a) A cooling gel sheet having a water-containing gel layer disposed on at least one surface of the substrate is attached to an adherend to evaporate at least a part of the water contained in the water-containing gel layer. Water supply layer and support containing water that can be supplied to the cooling gel sheet on the surface of the cooling gel sheet not adhered to the adherend (b) The water supply sheet having a water supply sheet is disposed so that the water supply layer is in contact with the support body. (b) And the support (b) The water contained in the water supply layer of the water supply sheet having the water supply layer disposed on at least one of the surfaces is moved to the cooling gel sheet side to maintain the cooling ability of the cooling gel layer.
[0011]
The cooling gel sheet of the present invention is a conventional cooling gel sheet that prevents the cooling gel layer from becoming unstable by increasing the water content in the water-containing gel layer in order to maintain a long cooling time. The portion of the water-containing gel layer to be adhered to the adherend skin contains an amount of water that can stably hold the water-containing gel layer, and initially the water of the water-containing gel layer is evaporated. Thus, when about 40% by weight of water contained in the water-containing gel layer of the cooling gel sheet is evaporated, the sticking power of the water-containing gel layer is significantly reduced. Before being lost, a water supply sheet is laminated on the cooling gel layer. Since this water supply sheet is laminated on the cooling gel sheet, the water supply layer of this water supply sheet does not particularly need to be as stable as the water-containing gel layer of the cooling gel sheet. The cooling gel sheet can be made higher than the water-containing gel layer. And at the time of laminating this water supply sheet on the water-containing gel sheet, a part of the water in the water-containing gel layer has already evaporated, and there is a concentration gradient of water between the water supply sheet and the cooling gel sheet. The water contained in the water supply sheet (water supply layer) moves to the cooling gel sheet side (water-containing gel layer) according to the concentration gradient of the water. Therefore, by laminating the water supply sheet on the cooling gel sheet, the cooling capacity of the cooling gel sheet once lowered and the adhesiveness to the adherend are recovered, and it is possible to cool the adherence to the adherend for a long time. .
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, the cooling gel sheet kit of the present invention and the method for using the same will be described in detail.
[0013]
The cooling gel sheet kit of this invention consists of the cooling gel sheet 50 and the water supply sheet 60, as shown in FIG.
As shown in FIGS. 1 and 2, the cooling gel sheet 50 includes a support (a) 51 and a hydrogel layer 52 provided on at least one surface of the support (a) 51. A synthetic resin film 54 is affixed to the surface of the hydrogel layer 52 to prevent the moisture from evaporating from the hydrogel 52 and to prevent adhesion with other members.
[0014]
As shown in FIGS. 1 and 3, the water supply sheet 60 includes a support (b) 61 and a water supply layer 62 provided on at least one surface of the support (b) 61. A synthetic resin film 64 is affixed to the surface of the water supply layer 62 to prevent water from evaporating from the water supply layer 62 and to prevent the water supply layer 62 from adhering to other members.
[0015]
The cooling gel sheet 50 will be described in more detail. The cooling gel sheet 50 includes a support (a) 51 and a hydrogel layer 52 provided on at least one surface of the support (a) 51 as shown in FIG. It consists of. In addition, the synthetic resin film 54 is normally stuck on the surface of the water-containing gel layer 52, and the synthetic resin film is peeled off when used.
[0016]
In the present invention, the support (a) 51 forming the cooling gel sheet 50 can evaporate water from the water-containing gel layer 52 and transfer water from the water supply sheet 60 to the cooling gel sheet 50 when the water supply sheet 60 is laminated. As such, it can be formed of cloth, non-woven fabric, paper, plastic film with many holes of a predetermined diameter that can be supplied with water, etc., but it must be formed of cloth, non-woven fabric, or paper Is preferred. Although there is no restriction | limiting in particular in the thickness of a support body (a), Usually, it is about 0.1-2 mm.
[0017]
The water-containing gel layer 52 formed on the surface of the support (a) 51 is composed of a water-absorbing polymer having high water absorption, such as sodium polyacrylate, gelatin, and a water retention agent (eg, glycerin, alkylene glycol). In order to increase the cooling feeling, a small amount of L-menthol or the like may be blended. The thickness of such a hydrogel layer is usually 1-5 mm.
[0018]
Each component forming such a hydrogel layer 52 is formed of a component that does not adversely affect the human body, particularly a component that is not toxic even if an infant passes it in the mouth. The sum total of each component which forms such a hydrogel layer 52 is 10-30 weight% normally. Therefore, in the conventional cooling gel sheet, the hydrogel layer contains 70 to 90% by weight of water. When the moisture evaporates, a cooling action is exhibited, and the moisture also has an action of sticking the cooling gel sheet 51 to the adherend. The amount of moisture that can be used for cooling in the conventional cooling gel sheet is usually Is about 70% by weight of the water actually contained in the hydrogel layer. As the moisture contained in the hydrated gel layer evaporates, the hydrated gel layer shrinks, and when the moisture content is usually less than 40% by weight, the adhesiveness of the surface is lowered and peeled off from the skin as the adherend. End up.
[0019]
In the present invention, the water supply sheet 60 includes a support (b) 61 and a water supply layer 62 provided on at least one surface of the support (b) 61, as shown in FIG. In this water supply sheet 60, the support (b) 60 is not necessarily required. For example, when the water supply layer 62 is self-supporting, the water supply sheet is provided only by the water supply layer 62 without providing the support (b). 60. A synthetic resin film 64 is affixed to the surface of the water supply layer 62 to prevent moisture from evaporating from the surface and to prevent the water supply layer 62 and other members from adhering to each other. The synthetic resin film 54 on the surface of the water supply layer 62 is peeled off before use.
[0020]
In the present invention, the support (b) 61 that forms the water supply sheet 60 supports the water supply layer 62 and can be appropriately used as long as it can support the water supply layer 62. After adhering to the surface of the cooling gel sheet 50, a part of the water contained in the water supply layer 62 has the effect of evaporating from the surface of the support (b) 61 and cooling it, so that the evaporation of water As possible, it is preferably formed of cloth, non-woven fabric, or paper. Although there is no restriction | limiting in particular in the thickness of a support body (b), Usually, it is about 0.1-2 mm.
[0021]
The water supply layer 62 formed on the surface of the support (b) 61 is formed of a water-absorbing polymer having high water absorption, such as sodium polyacrylate, gelatin or the like, and further a water retention agent (eg, glycerin). , Alkylene glycol) and the like can also be blended. The water supply layer 62 formed of such components can contain a large amount of moisture and can be attached to the cooling gel sheet 50 (usually the surface of the support (a)) as described above. It is preferable to form it with a material having good water-absorbing properties and sticking properties. Since the water supply layer 62 is a layer containing moisture to be supplied to the cooling gel sheet 50 as described above, the water supply layer 62 is not limited to the above components, and for example, open cells are formed on the surface of the support (b) 61. While adhering the resin foam which has it, you may lay a water-permeable adhesive layer in the surface joined to the support body (a) of the cooling gel sheet 51. FIG. In addition, a small amount of L-menthol or the like may be blended in the water supply layer 62 in order to increase the cooling feeling. The thickness of the water supply layer 62 is usually 0.5 to 5 mm.
[0022]
Each component that forms such a water supply layer 62 is formed of a component that does not adversely affect the human body, particularly a component that is not toxic even if an infant passes into the mouth. The total of the components other than water forming the water supply layer 62 is usually 0.1 to 10% by weight, and the water content of the water supply layer 62 is higher than the water content of the cooling gel layer 52 in the cooling gel sheet 50. be able to. That is, the water supply layer 62 is usually laminated on the support (a) of the cooling gel sheet 50 and does not come into direct contact with the skin. Therefore, the stability of the layer needs to be higher than that of the hydrogel layer 52. There is no. Therefore, even if the water-containing gel layer 52 and the water supply layer 62 are formed using the same water supply polymer, the water content of the water supply layer 62 can be made higher than the water content of the water-containing gel layer 52. . And the water | moisture content of the water supply layer 62 can be more efficiently moved to the cooling gel sheet 50 side by making the moisture content of the water supply layer 62 high in this way.
[0023]
  In the cooling gel sheet kit of the present invention, as shown in FIG. 1, the cooling gel sheet 50 and the water supply sheet 60 are accommodated in the same package 71.Has been.The package 71 can be formed of a water-impermeable material. For example, a paper bag laminated with a resin film, a paper bag coated with aluminum, a synthetic resin bag, an aluminum foil bag, a synthetic resin bag on which aluminum or the like is deposited, and the like. And in this package 71, the water supply sheet 60 is included, and this water supply sheet 60 is included in the package 71 containing the cooling gel sheet 50.Is. Further, the water supply sheet 60 is attached to the support (a) of the cooling gel sheet 50 after the cooling gel sheet 50 is used to evaporate the water in the cooling gel sheet 50 and the cooling power is reduced. In order to use 50, after opening the packaging body 71, it is normally used after considerable time progress. Therefore, the package 71 can be sealed so that moisture contained in the water supply sheet does not evaporate during the use of the water supply sheet, or the water supply sheet 60 can be sealed with the package 71. It is preferable to accommodate in a separate package 72 that can be stored in the package 71. The package 72 can be formed of a water-impermeable material equivalent to the package 71.
[0024]
The cooling gel sheet kit of this invention can be used as follows, for example.
First, as shown in FIG. 1, the cooling gel sheet 50 and the packaging body 71 containing the water supply sheet packaged by the packaging body 72 are opened, the cooling gel sheet 50 is taken out, and the adherend is assembled as shown in FIG. 4 (A). (For example, the frontal part of an infant) At this time, the water-containing gel layer 52 contains a sufficient amount of water, and this water is evaporated through the support (a) 51 to cool the adherend. Until at least about 20% by weight of the total water content contained in the water-containing gel layer 52 of the cooling gel sheet 50 evaporates, the cooling gel sheet 50 exhibits good cooling properties, and the water-containing gel layer 52 is also attached to the adherend. Good tackiness is exhibited. However, when the water is further evaporated, the cooling capacity of the cooling gel sheet 50 is extremely reduced and the adhesiveness is also significantly reduced. Therefore, the water supply sheet 60 accommodated in the packaging body 72 at this time is removed from the packaging body 72. It takes out and sticks on the surface of the support body (a) 51 of the cooling gel sheet 50 as shown in FIG. 4 (B).
[0025]
Since a considerable amount of the water contained in the water-containing gel layer 52 of the cooling gel sheet 50 has already evaporated, the water contained in the water-supplying layer 62 in the water-supplying sheet 60 has a low water content. The state of the hydrogel layer 52 can be recovered to a state close to the initial state immediately after sticking.
[0026]
Therefore, by using the cooling gel sheet kit of the present invention, it is possible to cool the adherend in close contact with the adherend for several times the time when the cooling gel sheet 50 is simply used.
[0027]
Thus, in the cooling gel sheet kit of the present invention using the water supply sheet 60 together with the cooling gel sheet 50, the cooling possible time can be secured 2 to 8 times as compared with the case of using the conventional cooling gel sheet. Moreover, since the cooling gel sheet 50 and the water supply sheet 60 are enclosed in the same package 71, there is no mistake in the method of use.
[0028]
The cooling gel sheet kit of the present invention basically has the above-described configuration, but the cooling gel sheet kit of the present invention can be variously modified.
For example, the water-absorbing polymer that forms the water-containing gel layer 52 of the cooling gel sheet 50, the water-absorbing polymer that sometimes forms the water-absorbing layer 62 of the water-absorbing sheet, and the like have the property of shrinking as the water content decreases.
[0029]
Therefore, the water-containing gel layer 52 constituting the cooling gel sheet 50 and / or the water-supplying layer 62 forming the water-supplying sheet 60 in the cooling gel sheet kit of the present invention has a stress due to the contraction stress generated in each layer as the water content decreases. By changing the state such as deformation, stress fracture, and crushing, it is possible to form a water-filling body that supplies moisture contained in each layer.
[0030]
5-9 has shown the aspect in which the water-containing body was formed in the water-containing gel layer 52 and / or the water supply layer 62. FIG.
That is, in the cooling gel sheet kit of the present invention, when the water-containing gel layer 52 and / or the water supply layer 62 is formed using, for example, a water-absorbing polymer, the water content of the water-containing gel layer 52 and / or the water supply layer 62 decreases. The hydrous gel layer 52 and / or the water supply layer 62 contracts. During the shrinkage, a shrinkage stress is generated in the layer. Therefore, by forming a water-containing body that releases moisture by the state change due to the contraction stress in the water-containing gel layer 52 and / or the water supply layer 62, for example, the water-containing gel layer 52 and / or the water supply exceeds the water absorption capability of the water-absorbing polymer. The layer 62 can contain moisture at a high moisture content. In FIG. 5 to FIG.
[0031]
The water-containing body 73 can supply moisture contained in the water-containing body 73 to the water-containing gel layer 52 or the water-supplying layer 62 in accordance with the state change of the water-containing body 73 due to the compressive stress generated in the water-containing gel layer 52 or the water-supplying layer 62. ing.
[0032]
Specifically, since the shrinkage stress is generated in the water-containing gel layer 52 due to the evaporation of moisture from the water-containing gel layer 52, the state of the water-filling body 73 is changed using this shrinkage stress, The contained moisture can be moved to the hydrated gel layer 52. Further, since the moisture content in the water supply layer 62 is reduced by the moisture content in the water supply layer 62 being lowered by the moisture contained in the water supply layer 62 being transferred to the cooling gel sheet 50, this compressive stress is utilized. By changing the state of the water filler 73, the water contained in the water filler 73 can be transferred to the water supply layer 62. For example, the water content in the water-containing body is changed to the water-containing gel layer or the water supply layer 62 by changing the shape of the water-containing body 73 by the contraction stress generated in the water-containing gel layer 52 or the water supply layer 62 or by destroying the water-containing body 73 itself. It can be made movable. Further, due to the compressive stress generated in the water-containing gel layer 52 or the water supply layer 62, a change in the properties, state, or form of the water-containing body 73, or a partition that surrounds the water-containing body 73 and partitions the water-containing body 73 from the water-containing gel or the like The wall can be pulled and broken so that moisture contained in the package can be moved to the water-containing gel layer 52 or the water supply layer 62. Furthermore, by compressing the compressive stress generated in the water-containing gel layer 52 or the water supply layer 62, for example, by compressing at least a part of the partition wall surrounding the water-containing body 73 and partitioning the water-containing body 73 and the water-containing gel with the compressive stress, The water contained in the water-filling body 73 can be moved to the water-containing gel layer 52 or the water supply layer.
[0033]
Specifically, in FIG. 5, a water-filling body 73 is formed in the water-containing gel layer 52 of the cooling gel sheet 50 or the water supply layer 62 of the water supply sheet 60 in the cooling gel sheet kit of the present invention. For example, as shown in FIG. 5, the water-filling body 73 includes a soft foamed resin in which open cells are formed on the surface of the support (a) 51 or the support (b) 61, and an aqueous medium contained in the soft foam resin. And can be formed from A so-called sponge can be used as the soft foamed resin. Examples of the soft resin used here include urethane resins, polyamides, polyolefins, polysaccharides and the like. Such a soft resin can be foamed by a known method, and by increasing the expansion ratio, open cells are formed in the soft resin. In the soft resin in which the open cells are thus formed, an aqueous medium (such as water) can be contained at a higher content than the water content in the hydrous gel layer. That is, such a soft foamed resin can contain 100 to 3000 parts by weight, preferably 300 to 700 parts by weight of water with respect to 100 parts by weight.
[0034]
In FIG. 5, this water-filling body 73 is provided in layers between the support (a) 51 or the support (b) 61 and the hydrated gel layer 52 or the water supply layer 62. Thus, the water-filling body 3 is layered. In the case of forming, the water-filling body 73 has a thickness of usually 0.1 to 5 mm, preferably about 0.5 to 3 mm. By making the thickness of the layered water inclusion 73 within the above-mentioned range, sufficient moisture can be supplied to the water-containing gel layer 52 or the water supply layer 62, and no uncomfortable feeling is caused when the cooling gel sheet is used. In addition, as shown in FIG. 6, the water-containing body 73 can be formed inside the water-containing gel layer 52 or in the water supply layer 62 by, for example, applying the water-containing gel layer 52 or the water supply layer 62 repeatedly. Furthermore, as shown in FIG. 7, it is also possible to stack a plurality of water-containing bodies 73, 73. Moreover, as shown in FIG. 8, the some hydration bodies 73 and 73 can also be arrange | positioned in parallel. It should be noted that a partition wall is provided on the outer peripheral portion of the layered water-filling body 73 so that the water contained in the water-filling body 73 does not migrate into the water-containing gel layer 52 or the water supply layer 62 during storage or transfer. (Not shown) may be formed. The partition wall can be formed of, for example, a film having a strength that can be crushed by the shrinkage stress of the water-containing gel layer 52 or the water supply layer 62 generated by the evaporation of moisture, and stress from the outside before use. It can be formed of a film or the like that can be broken at least partially by application.
[0035]
Furthermore, in the cooling gel sheet kit of the present invention, instead of forming the layered hydrated body 73 as described above, the aqueous medium-containing micro having an outer shell that can be crushed by contraction stress due to contraction of the water-containing gel layer 52 or the water supply layer 62. Capsule can also be formed. Such an aqueous medium-containing microcapsule can be produced, for example, by finely dispersing water in an oily medium in the form of droplets and forming a cured film on the surface of the finely dispersed aqueous medium droplets. In addition, the aqueous medium-containing microcapsules may be those that are pulled and broken by contraction stress generated in the layer.
[0036]
For example, the microcapsules prepared as described above are dispersed in the hydrogel layer-forming component, and this dispersion is applied to the surface of the support (a) 51 or the support (b) 61. 9, the cooling gel sheet 50 or the water supply sheet 60 having the water-containing gel layer 52 or the water supply layer 62 in which the microcapsule-shaped water inclusions 73 are dispersed can be formed.
[0037]
In addition, the water-containing gel layer 52 or the water supply layer 62 in the cooling gel sheet kit of the present invention may have both a layered hydrated body and a microcapsule-shaped hydrated body.
[0038]
The hydrated body 73 formed in this way is usually surrounded by a hydrated gel layer, and the moisture in the hydrated body 73 is prevented from leaking outside the hydrated gel layer 52 or the water supply layer 62.
[0039]
From the water-containing body 73 as described above, moisture is gradually supplied into the water-containing gel layer 52 due to the contraction stress generated in the water-containing gel layer 52 due to evaporation of the water in the water-containing gel layer 52. It is possible to maintain the cooling ability and adhesiveness of the hydrogel layer 52 for a long time by diffusing into the component (for example, a water-absorbing polymer) that forms the water.
[0040]
Moreover, by forming the packaging body 73 as described above in the water supply layer 62 of the water supply sheet 60, the amount of water that can be supplied to the cooling gel sheet can be greatly increased.
[0041]
In the cooling gel sheet kit of the present invention, the water-filling body 73 as described above can be formed on both the water-containing gel layer 52 and the water supply layer 62, or any one of the water-containing gel layer 52 and the water supply layer 62. It can also be formed on one side.
[0042]
As described above, the cooling gel sheet kit of the present invention includes the cooling gel sheet 50 having the support (a) 51, the water-containing gel layer 52, and the water-containing body 73 as necessary, the support (b) 61, the water supply layer 62, and the packaging as necessary. Although it consists of the water supply sheet | seat 60 which has the water body 73, the cooling gel sheet kit of this invention can be further variously modified.
[0043]
For example, in the cooling gel sheet kit of the present invention, the water-containing gel layer 52 and the water supply layer 62 are preferably blended with a bitter component. That is, the cooling gel sheet 50 and the water supply sheet 60 constituting the cooling gel sheet kit of the present invention are formed of components having low toxicity to the human body, and the cooling gel sheet 50 and the water supply sheet 60 are eaten or licked. However, it is preferable to add a bitter component so that the infant will not eat or lick the cooling gel sheet of the present invention.
[0044]
Examples of bitter ingredients that can be used in the present invention include urea, phenylurea, magnesium sulfate, caffeine, naringin, nicotine, quinine sulfate, picric acid, strychinin, 3-methyl-6-methoxy-8-hydroxy -3,4-dihydroisocoumarin, ibonomeamarone, allantolactone, lactucine, tenurine, helenaline, carnosol. Picrotoxinin, colliamine, malvinin, α-caesarpine, chaparin, fisaline A, gentiobiose, levobrucosan, methyl-β-D-glucopyranoside, gennathiopyruline, swellthiamarin, amarogentin, swellside, asperloside, loganine, plumieride, aucbin, Examples include berbenaline, jasminin, castellin, colcholine, fluoroacetophenine-4′-β-neosperidoside, quassha extract, methylthioadenosine and denatonium benzoate. By the way, even though it is a bitter component, there are various types of bitterness. That is, the bitterness includes a component that feels repellent bitterness even in a small amount, and a component that does not become repellent bitterness in a small amount and does not become repellent bitterness unless a certain amount is consumed, the cooling gel sheet of the present invention The bitter component blended in the 50 water-containing gel layer 52 or the water supply layer 62 of the water supply sheet 60 is preferably a component that feels repellent bitterness in a small amount. In particular, in the present invention, it is preferable to use a bitter component that feels repellent bitterness at a concentration of 50 ppb or more. In addition, the bitter component used in the present invention is preferably one that is as irritating as possible to the skin, mucous membranes and the like.
[0045]
Among these examples, denatonium benzoate is most preferable as a component that feels repellent bitterness in such a small amount.
Denatonium benzoate is a white crystalline material that is colorless but has intense bitterness. This denatonium benzoate can sense taste at 10 ppb and bitterness at 50 ppb. Moreover, the bitterness of this denatonium benzoate is an intense repellent bitterness. No abnormalities were observed in the ocular mucosa even when the 0.05 w / v aqueous solution of denatonium benzoate was applied to the eyeballs of mature rabbits. The 0.05 w / v aqueous solution was used in the forearm from the elbow to the wrist of the adult. The patch test results have confirmed that it does not cause any skin irritation.
[0046]
And since this denatonium benzoate is colorless, there is no change in appearance even if it is added to the water-containing gel layer or the water supply layer, and since denatonium benzoate is odorless, it is uncomfortable by adding denatonium benzoate. Odor is not generated.
[0047]
The amount of the bitter component mixed in the water-containing gel layer or the water supply layer varies depending on the amount of the bitter component used, but in the case of the above-described denatonium benzoate, the amount of the bitter component is usually 0 in the water-containing gel layer 52 or the water supply layer 62. When added in an amount in the range of 0.5 to 50 ppm, preferably in the range of 10 to 40 ppm, repellent bitterness is developed in the water-containing gel layer 52 and the water supply layer 62, and the skin, mucous membrane, etc. Not irritating.
[0048]
The cooling gel sheet kit of this invention can be manufactured as follows, for example.
First, a cooling gel sheet having a layered water-containing body is prepared by coating water with a component that forms a water-containing gel layer or a water supply layer. Separately, a layered hydrated body containing water is placed on the surface of the support (a) or (b). The layered water enclosure may be adhered to the support (a) or (b). Next, the coating gel prepared as described above can be applied onto the layered water enclosure, and a water-impermeable resin film or the like can be further adhered to the surface.
[0049]
In addition, after applying the coating gel on the support (a) or (b), after placing the layered enclosure on the surface of the coated gel, the coating gel is applied thereon, It can be produced by attaching a water-impermeable resin film or the like to the surface.
[0050]
Further, in the case of forming a microencapsulated hydrated body, water-containing microcapsules produced using microencapsulation technology are mixed when preparing a coating gel, and this coating gel is supported on a support ( It can be produced by coating on a) or (b) and further adhering a water-impermeable resin film or the like to this surface.
[0051]
  Note that the coating gel for forming the hydrous gel layer and the coating gel for forming the water supply layer may be the same, but the water supply layer has a lower layer stability than the hydrogel layer. Therefore, the coating gel for forming the water supply layer can have a higher moisture content than the coating gel for forming the water-containing gel layer.Specifically, the coating gel that forms the water supply layer can be prepared by blending usually 1 to 3 times the water that is blended into the coating gel that forms the hydrous gel layer.
[0052]
The cooling gel sheet kit formed in this manner is about 1.5 to 5 times, preferably 2 to 3 times, by combining the cooling gel sheet and the water supply sheet, compared to the conventional cooling gel sheet using the water-absorbing polymer. Can be supplied to the cooling gel layer, and the cooling effect can be maintained for a long time.
[0053]
In the above description, an example in which the cooling gel sheet kit of the present invention is configured by one cooling gel sheet and one water supply sheet is shown. However, the cooling gel sheet kit of the present invention includes a plurality of cooling gel sheets. One water supply sheet may be combined.
[0054]
【The invention's effect】
As described above, the cooling gel sheet kit of the present invention comprises a cooling gel sheet and a water supply sheet, and adheres the cooling gel sheet to the adherend and cools the adherend according to the state of moisture from the cooling gel sheet. When the water content of the cooling gel sheet evaporates to some extent and the cooling capacity of the cooling gel sheet decreases, a water supply sheet is attached to the surface of the cooling gel sheet, and the water contained in the water supply layer of the water supply sheet is cooled to the cooling gel sheet. Thus, moisture is supplied to the cooling gel sheet. By supplying moisture to the cooling gel sheet in this manner, the cooling ability of the cooling gel sheet can be continued for a very long time as compared with the conventional cooling gel sheet.
[0055]
In the cooling gel sheet kit of the present invention, the cooling ability is maintained for a long period of time as described above, but the water-containing gel layer of the cooling gel sheet contains moisture deviating from the allowable range of the water-absorbing polymer forming the cooling gel sheet. Therefore, the water-containing gel layer of the cooling gel sheet becomes unstable, and for example, the situation where the water-containing gel is transferred to the skin of an infant, which is an example of the adherend, does not occur.
[0056]
The cooling gel sheet kit of the present invention supplies water to the cooling gel sheet by a water supply sheet that is separate from the cooling gel sheet, and maintains the cooling capacity of the cooling gel sheet for a long time. This is particularly useful in emergency situations where it is difficult to secure water.
[0057]
In addition, by blending repellent bitter ingredients in the water-containing gel layer or water supply layer of the cooling gel sheet of the present invention, even if an infant puts them in their mouths, they will vomit due to repellent bitterness, and the cooling gel sheet and water supply Misuse of the sheet can be prevented.
[0058]
In particular, cooling gel sheets and water supply sheets formulated with denatonium benzoate as a bitter component are very small amounts of denatonium benzoate, and they exhibit intense repellent bitterness. Absent.
[0059]
【Example】
EXAMPLES Next, the present invention will be described in more detail with reference to examples of the present invention, but the present invention is not limited thereto.
[0060]
[Example 1]
The following components were mixed, purified water was added to this and mixed well, and the whole was 100 parts by weight to prepare a coating gel for the hydrogel layer of the cooled gel sheet.
[0061]
4.0 parts by weight of gelatin
7.0 parts by weight of sodium polyacrylate
18.0 parts by weight of glycerin
0.01 parts by weight of denatonium benzoate
Purified water balance
The water-containing gel formed by applying the coating gel for the water-containing gel layer to a thickness of 2 mm on the surface of the support (a) made of a nonwoven fabric and having a thickness of 2 mm. A synthetic resin film was stuck on the surface of the layer to prepare a cooling gel sheet.
[0062]
Separately from this, the following components were mixed, and purified water was added thereto and mixed well to make 100 parts by weight as a whole to prepare a coating gel for forming the water supply layer of the water supply sheet.
[0063]
3.0 parts by weight of gelatin
3.0 parts by weight of sodium polyacrylate
0.01 parts by weight of denatonium benzoate
Purified water balance
The water supply layer formed by applying the coating gel for forming the water supply layer to a thickness of 3 mm on the surface of the support (b) having a thickness of 1 mm made of nonwoven fabric and further applying the coating gel in this way. A synthetic resin film was affixed to the surface of the sheet to prepare a water supply sheet.
[0064]
This water supply sheet was sealed in a paper bag lined with aluminum.
Further, the cooling gel sheet manufactured as described above is housed in a paper bag lined with aluminum, and further, the packaging bag in which the water supply sheet is sealed is put in the packaging bag, and the cooling gel sheet kit of the present invention is sealed. Manufactured.
[0065]
The packaging bag of the cooling gel sheet kit of the present invention thus produced was opened, and the cooling gel sheet was first taken out and adhered to the frontal region. 2 hours after sticking, the water-containing gel layer feels dry and its adhesive strength has also decreased, so take out the bag containing the water supply sheet in the package, open it and remove it The sheet was placed and pasted so that the water supply layer adhered to the support of the cooling gel sheet. A few minutes later, the wet gel layer returned to the water-containing gel layer of the cooling gel sheet adhered directly to the forehead, and the cooling function of the cooling gel sheet was maintained for 2 hours thereafter.
[0066]
Therefore, the total cooling time after starting to use the cooling gel sheet kit of the present invention was about 4 hours, and a sufficient cooling effect was maintained during this period.
Moreover, when the water-containing gel layer of the cooling gel sheet and the water supply layer of the water supply sheet were put in the mouth, significant bitterness was felt.
[0067]
[Comparative Example 1]
In Example 1, when the useable time was measured in the same manner using a cooling gel sheet having a water content of about 85% by weight of a commercially available water-containing gel layer, the adhesive strength and the cooling effect disappeared in 2 hours.
[0068]
[Example 2]
A cooling gel sheet kit was produced in the same manner as in Example 1 except that a water-containing gel layer and a water supply layer of a water supply sheet were provided with a water-containing body made of a resin foam having a thickness of 2 mm. Further, when the cooling maintenance time was measured using this cooling gel sheet, after the cooling gel sheet was adhered, the total cooling time was about 4 hours, and a sufficient cooling effect was maintained during this time.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing an example of a cooling gel sheet kit of the present invention.
FIG. 2 is a cross-sectional view schematically showing an example of a cooling gel sheet constituting the cooling gel sheet kit of the present invention.
FIG. 3 is a cross-sectional view schematically showing an example of a water supply sheet constituting the cooling gel sheet kit of the present invention.
FIG. 4 is a diagram showing an example of how to use the cooling gel sheet kit of the present invention.
FIG. 5 is a cross-sectional view showing another example of the cooling gel sheet and the water supply sheet constituting the cooling gel sheet kit of the present invention.
FIG. 6 is a cross-sectional view showing another example of the cooling gel sheet and the water supply sheet constituting the cooling gel sheet kit of the present invention.
FIG. 7 is a cross-sectional view showing another example of the cooling gel sheet and the water supply sheet constituting the cooling gel sheet kit of the present invention.
FIG. 8 is a cross-sectional view showing another example of the cooling gel sheet and the water supply sheet constituting the cooling gel sheet kit of the present invention.
FIG. 9 is a cross-sectional view showing another example of the cooling gel sheet and the water supply sheet constituting the cooling gel sheet kit of the present invention.
[Explanation of symbols]
50 ... Cooling gel sheet
51 ... Support (a)
52 ... hydrous gel layer
54. Synthetic resin film
60 ... Water supply sheet
61 ... Support (b)
62 ... Water supply layer
64. Synthetic resin film
71 ... Packaging body
72 ... Packaging body
73 ... Water-filled body

Claims (7)

A cooling gel sheet having a support (a) and a hydrogel layer disposed on at least one surface of the support (a);
The cooling gel sheet has a support (b) and a water supply layer disposed on at least one surface of the support (b), and is disposed on the side of the cooling gel sheet that is not attached to the adherend. A water supply sheet having a water supply layer containing water that can be supplied,
The water content of the water supply layer in the water supply sheet is higher than the water content of the water-containing gel layer in the cooling sheet,
The cooling gel sheet and the water supply sheet are accommodated in a single moisture blocking package, and the water supply sheet can prevent moisture from evaporating even after the moisture blocking package is opened to take out the cooling gel sheet. Thus, the cooling gel sheet kit characterized by being packaged separately from the cooling gel sheet.   2. The cooling gel sheet kit according to claim 1, wherein the water supply sheet can be attached to the surface of the cooling gel sheet that is not attached to the adherend.   The cooling gel sheet kit according to claim 1, wherein the support (a) and the support (b) are each independently formed of a material selected from the group consisting of paper, cloth and non-woven fabric. .   The cooling gel sheet kit according to claim 1, wherein the water-containing gel layer of the cooling gel sheet contains at least a water-absorbing polymer and water.   The cooling gel sheet kit according to claim 1, wherein the water supply layer of the water supply sheet contains at least a water-absorbing polymer and water.   The cooling gel sheet kit according to any one of claims 1 to 5, wherein a bitter component is contained in the hydrated gel layer and / or the water supply layer.   7. The cooling gel sheet kit according to claim 6, wherein the bitter component is denatonium benzoate.

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