JP2006051060A - Pad material and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve air permeability and a heat radiation property, to make breathing possible even in the case that a pad material is erroneously stuck so as to close the mouth or the nose and to provide a sufficient cold insulation effect over a long period of time in the pad material for which a gel-like adhesive body gelling by containing a water soluble polymer and water is imparted on an air permeable support sheet. <P>SOLUTION: In the pad materials A1 and A2 for which the gel-like adhesive body 21 gelling by containing the water soluble polymer and water is imparted on the air permeable support sheet 11, a non-imparted part 14 where the gel-like adhesive body 12 is not imparted at all is provided on the appropriate position of the support sheet 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pad material in which a gel-like pressure-sensitive adhesive body containing a water-soluble polymer and water is provided on a support sheet having air permeability, and a method for producing the same. It is characterized by the ability to increase heat dissipation and allow breathing even when the pad material is accidentally applied to close the mouth and nose, and to provide a sufficient cold insulation effect for a long time It is.

  In recent years, a pad material in which a gel-like pressure-sensitive adhesive body containing a water-soluble polymer and water is provided on a support sheet having air permeability has been used for the purpose of keeping cold or the like.

  Here, as such a pad material, as shown in FIG. 1 and FIG. 2, the entire surface of one side of the air-permeable support sheet 11 made of a nonwoven fabric or a woven fabric contains a water-soluble polymer and water. A gel-like pressure-sensitive adhesive body 12 is provided, and a release sheet 13 is attached on the gel-like pressure-sensitive adhesive body 12 so that moisture is volatilized from the gel-like pressure-sensitive adhesive body 12 or the gel-like pressure-sensitive adhesive body 12 is used. In order to prevent adhesion to other pad materials, etc.

  And when using this pad material, the peeling sheet 13 is removed from said gel-like adhesive body 12, and this pad-like adhesive body 12 is made to affix a pad material to appropriate sticking parts, such as a forehead.

  However, in the unlikely event that such a pad material is applied so that an infant or the like accidentally closes the mouth or nose, the gel-like adhesive 12 may be in close contact with the mouth or nose and cannot breathe. Further, if such a pad material is continuously applied to the human body for a long time, heat is not dissipated well to the outside, the pad material is gradually warmed and the cold insulation effect is lowered, and a sufficient cold insulation effect cannot be obtained for a long time. There was a problem.

  Further, in the conventional pad material, as shown in FIG. 3, in order to make it easy to remove the release sheet 13 stuck on the gel-like adhesive body 12 as described above, In part, the gel-like pressure-sensitive adhesive body 12 applied to the support sheet 11 is also removed.

  However, when the gel-like pressure-sensitive adhesive body 12 is applied to the support sheet 11 as described above, a part of the gel-like pressure-sensitive adhesive body 12 is infiltrated into the support sheet 11. 11 could not be completely removed, and the gel-like pressure-sensitive adhesive body 12 was still present in the state of the film 12a even in the peripheral portion of the support sheet 11 from which the gel-like pressure-sensitive adhesive body 12 was removed.

  Even when the gel-like pressure-sensitive adhesive body 12 applied to the support sheet 11 is removed in this manner, the gel-like pressure-sensitive adhesive body 12 has a film 12a in this portion. Even if the adhesive 12 is removed, the air permeability cannot be ensured through the support sheet 11, and if it is pasted so as to accidentally close the mouth or nose as described above, there is a possibility that breathing may still be impossible, and It is difficult to dissipate the water sufficiently to the outside, and there is still a problem that a sufficient cooling effect cannot be obtained for a long time.

  An object of the present invention is to solve the above-described problems in a pad material in which a gel-like pressure-sensitive adhesive body containing a water-soluble polymer and water is provided on a support sheet having air permeability. In addition to improving the breathability and heat dissipation of the pad material, it is possible to breathe even if it is pasted to accidentally block the mouth and nose, and a sufficient cooling effect can be obtained over a long period of time. The problem is to do so.

  In this invention, in order to solve the above-described problems, in a pad material provided with a gel-like pressure-sensitive adhesive body that gels containing a water-soluble polymer and water on a support sheet having air permeability, A non-applied part to which the gel-like pressure-sensitive adhesive body is not applied at all is provided at an appropriate position of the support sheet.

  Here, in the pad material according to the present invention, in providing the non-applied portion to which the gel-like pressure-sensitive adhesive body is not applied at all at an appropriate position of the support sheet, for example, the gel-type pressure-sensitive adhesive body is formed on the support sheet. Can be provided in a plurality of lines with a necessary interval, or a gel-like pressure-sensitive adhesive body can be provided in a dispersed manner on the support sheet.

  Further, in producing the pad material as described above in the present invention, for example, a non-granted portion to which no gel-like pressure-sensitive adhesive body is imparted is provided on a support sheet having air permeability. It can be produced by directly applying an adhesive. Further, the gel-like pressure-sensitive adhesive body is provided on the transfer sheet by providing a non-granted portion to which the gel-type pressure-sensitive adhesive body is not applied at all, and the gel-type pressure-sensitive adhesive material thus applied to the transfer sheet is aerated. It can be manufactured by being transferred onto a supporting sheet having properties. Moreover, the said gel-like adhesive body was accommodated in each accommodating part of this accommodating body using the accommodating body in which the opening accommodating part which accommodates said gel-like adhesive body to gelatinize isolate | separated, and was provided with two or more. Then, it can manufacture by arrange | positioning the support sheet which has air permeability on said accommodating body so that each accommodating part may be obstruct | occluded.

  In the present invention, in the pad material in which a gel-like pressure-sensitive adhesive body containing a water-soluble polymer and water is provided on the air-permeable support sheet as described above, the above support sheet is suitable. Since the non-giving part to which the above-mentioned gel-like pressure-sensitive adhesive body is not given at all is provided, air permeability and heat dissipation are ensured through the support sheet in the non-giving part and the non-giving part.

  For this reason, even when this pad material is mistakenly pasted so as to close the mouth and nose, breathing can be performed through the support sheet provided with the non-applied part and the non-applied part, and the gel-like material is used. The moisture in the pressure-sensitive adhesive body evaporates through the support sheet provided with the non-applied part and the non-applied part, so that the heat is efficiently dissipated and a sufficient cooling effect is obtained over a long time.

  Hereinafter, a pad material and a manufacturing method thereof according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. Note that the pad material 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 changed and implemented within a range not changing the gist thereof.

(Embodiment 1)
In the pad material A1 according to this embodiment, as shown in FIGS. 4 (A) and 4 (B), a water-soluble high-level surface is provided on one side of a planar rectangular support sheet 11 made of nonwoven fabric or woven fabric. A gel-like pressure-sensitive adhesive body 12 that contains molecules and water and gels is applied in a plurality of lines through a required interval, and the gel-like pressure-sensitive adhesive body 12 is provided between the gel-like pressure-sensitive adhesive bodies 12 provided in a line shape. A non-giving part 14 which is not given at all is provided.

  In addition, in the pad material A1 of the first embodiment, the planar rectangular support sheet 11 is used. However, the planar shape is not particularly limited, and the shape corresponding to the portion to which the pad material A1 is attached, etc. In addition, the number and width of the gel-like pressure-sensitive adhesive bodies 12 formed in a line shape to be applied to the support sheet 11 and the width of the non-applied portion 14 can be appropriately changed.

  Moreover, in order to further improve the air permeability and heat dissipation in the pad material A1 of the first embodiment, as shown in FIG. It is also possible to provide a vent hole 15 that penetrates the sheet 11.

  Next, an example of a method for manufacturing the pad material A1 as described above will be described with reference to the accompanying drawings.

  Here, in the method shown in FIGS. 6A and 6B, the above-described support sheet 11 is moved onto the support sheet 11 through the supply nozzles 21 provided in the supply device 20 while moving the continuous support sheet 11. The gel-like pressure-sensitive adhesive body 12 is continuously supplied, and the gel-like pressure-sensitive adhesive body 12 is provided on the support sheet 11 in a line shape with a necessary interval. The support sheet 11 thus provided with the gel-like pressure-sensitive adhesive body 12 in a line shape is cut into a predetermined size to produce the pad material A1 as described above.

  In the method shown in FIGS. 7A and 7B, the transfer sheet 30 is moved in the same manner as described above while moving the continuous transfer sheet 30 having a low adhesion to the gel-like pressure-sensitive adhesive body 12. The gel-like pressure-sensitive adhesive body 12 is continuously supplied onto the transfer sheet 30 through the respective supply nozzles 21 provided on the supply device 20, and the gel-like pressure-sensitive adhesive body 12 is lined on the transfer sheet 30 with a predetermined interval. To grant. Then, the support sheet 11 is pressed onto the transfer sheet 30 to which the gel-like pressure-sensitive adhesive body 12 is provided in a line shape, and the gel supplied to the support sheet 11 on the transfer sheet 30. The gel-like pressure-sensitive adhesive body 12 is transferred, and the gel-like pressure-sensitive adhesive body 12 is provided on the support sheet 11 in a line shape with a predetermined interval. Thereafter, as in the case described above, the support sheet 11 is cut into a predetermined size as described above to produce the pad material A1 as described above.

  Further, in the method shown in FIGS. 8A and 8B, a container 40 in which a plurality of housing parts 41 each having a groove-like recess for housing the gel-like pressure-sensitive adhesive body 12 are provided at a required interval. The gel-like pressure-sensitive adhesive body 12 is housed in each housing portion 41 of the housing body 40. Then, the support sheet 11 is arranged on the above-described storage body 40 so as to close each of the storage portions 41 stored in the gel-like pressure-sensitive adhesive body 12 in this way. In this case, when the support sheet 11 arranged on the container 40 is removed from the container 40, the gel-like pressure-sensitive adhesive body 12 accommodated in each container 41 including the groove-like recesses becomes the support sheet 11. The pad material A1 as described above is obtained by being attached.

(Embodiment 2)
In the pad material A2 according to this embodiment, as shown in FIG. 9, a water-soluble polymer and water are contained on one side of a support sheet 11 having a planar rectangular shape having air permeability made of a nonwoven fabric or a woven fabric. The gel-like pressure-sensitive adhesive body 12 that is gelled is dispersed and applied in the form of dots, and the gel-like pressure-sensitive adhesive body 12 is completely applied between the gel-like pressure-sensitive adhesive bodies 12 that are dispersed and provided in this way. There is no non-giving part 14 provided.

  In addition, in the pad material A2 of the second embodiment, the planar shape is not particularly limited as in the case of the pad material A1 of the first embodiment, and the shape corresponding to the portion to which the pad material A2 is affixed. It can be appropriately changed according to the above. Further, in the pad material A2 of the second embodiment, the shape of the gel-like pressure-sensitive adhesive body 12 that is dispersed and applied to the support sheet 11 in a circular shape is circular. The number of sheaths and the interval between the gel-like pressure-sensitive adhesive bodies 12 to be the non-giving portions 14 can be appropriately changed. Moreover, although not shown in figure, the vent hole 15 which penetrates the support sheet 11 is provided in the non-applying part 14 to which the gel-like adhesive body 12 is not applied at all as in the case of the pad material A1 of the first embodiment. It is also possible to provide it.

  Further, when the pad material A2 as described above is manufactured, it can be manufactured by the same method as the case of the pad material A1 of the first embodiment.

  Here, in the method shown in FIGS. 10 (A) and 10 (B), the continuous support sheet 11 is moved, and the above-described method is performed on the support sheet 11 through the supply nozzles 21 provided in the supply device 20. The gel-like pressure-sensitive adhesive body 12 is intermittently supplied, and the gel-like pressure-sensitive adhesive body 12 is dispersed and applied on the support sheet 11 in the form of dots. And the support sheet 11 to which the gel-like pressure-sensitive adhesive body 12 is dispersed and applied in this way is cut into a predetermined size to produce the pad material A2 as described above.

  Further, in the method shown in FIGS. 11A and 11B, the continuous transfer sheet 30 having low adhesion to the gel-like pressure-sensitive adhesive body 12 is moved and provided on the supply device 20 on the transfer sheet 30. Further, the gel-like pressure-sensitive adhesive body 12 is intermittently supplied through the supply nozzles 21, and the gel-like pressure-sensitive adhesive body 12 is dispersed and applied on the transfer sheet 30. Then, the support sheet 11 is pressed onto the transfer sheet 30 provided with the gel-like pressure-sensitive adhesive body 12 dispersed in a scattered manner in this manner, and the support sheet 11 is supplied onto the transfer sheet 30. The gel-like pressure-sensitive adhesive body 12 is transferred, and the gel-like pressure-sensitive adhesive body 12 is dispersed and applied on the support sheet 11 in the form of dots. Thereafter, the support sheet 11 is cut into a predetermined size as described above to manufacture the pad material A2 as described above.

  Further, in the method shown in FIGS. 12A and 12B, a container 40 in which a plurality of accommodating portions 41 each including a circular recess for accommodating the gel-like pressure-sensitive adhesive body 12 are provided at appropriate intervals is used. The gel-like pressure-sensitive adhesive body 12 is accommodated in the respective accommodating portions 41 of the accommodating body 40. Then, the support sheet 11 is arranged on the above-described storage body 40 so as to close each of the storage portions 41 stored in the gel-like pressure-sensitive adhesive body 12 in this way. In this case, when the support sheet 11 arranged on the container 40 is removed from the container 40, the gel-like pressure-sensitive adhesive body 12 accommodated in each container 41 composed of a circular recess adheres to the support sheet 11. Thus, the pad material A2 as described above can be obtained.

  Here, in each of the pad materials A1 and A2 in the first and second embodiments, examples of the water-soluble polymer used for the gel-like pressure-sensitive adhesive body 12 include polyacrylic acid, polyacrylic acid salts, and polyacrylic acid. Partially neutralized product, polyglutamic acid, polyglutamic acid salts, partially neutralized polyglutamic acid, polyvinyl alcohol, gelatin, sodium carboxymethylcellulose, carrageenan, alginic acid, alginic acid salts, carboxyvinyl polymer, grafted starch, agarose, pectin, One or a mixture of two or more selected from the group consisting of tamarind gum, locust bean gum, gellan gum, and xanthan gum can be exemplified, but the invention is not particularly limited thereto. In addition, it is more preferable to use a mixture of several water-soluble polymers than to use one kind of water-soluble polymer from the viewpoint of water retention and adhesive strength, for example, polyacrylic acid and sodium polyacrylate. It is preferable to use a mixture of at least one selected from the group consisting of polyvinyl alcohol and carboxyvinyl polymer, a mixture containing carrageenan, locust bean gum, tamarind gum and carboxyvinyl polymer.

  Moreover, aroma oil and a pharmacologically active substance are contained in such a gel-like pressure-sensitive adhesive body 12, and these substances are gradually transmitted from the pad material A1 to the affixed part of the body, and the effects of these substances along with the cold and moisturizing effects. Can also be obtained.

  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” and 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. .

  In addition, when manufacturing each pad material A1, A2 by said manufacturing method, when supplying the gel-like adhesive body 12 through the supply nozzle 21 provided in the supply apparatus 20, the gel-like adhesive body 12 is supplied to the supply nozzle 21. In order to prevent clogging and to supply the gel-like pressure-sensitive adhesive body 12 only to the housing portion 41 when supplying the gel-like pressure-sensitive adhesive body 12 to the housing portion 41 provided in the housing body 40, In the state of supplying through the supply nozzle 21 and the state of supplying to the accommodating portion 41 provided in the accommodating body 40, the gel-like adhesive body 12 having a low degree of crosslinking and low viscosity is used. It is preferable to increase the viscosity by increasing the degree of crosslinking.

  Here, when the gel-like pressure-sensitive adhesive body 12 having a low degree of cross-linking and a low viscosity is initially used, and then the degree of cross-linking of the gel-like pressure-sensitive adhesive body 12 is increased to increase the viscosity, for example, light irradiation, temperature It is possible to use a method such as preliminarily blending the gel-like pressure-sensitive adhesive body 12 with a crosslinking accelerator that promotes crosslinking by a change, a change in pH, or the like.

  In addition, in each of the pad materials A1 and A2, in order to facilitate the movement of the liquid inside the gel-like pressure-sensitive adhesive body 12, for example, a fiber group having at least a hydrophilic surface is dispersed therein. You may make it let it. Examples of the fiber group include pulp, cotton yarn, rayon, and other various hydrophilic resin fibers, various hydrophobic resin fibers whose surfaces are subjected to hydrophilic treatment, and glass fibers and ceramic fibers. However, it is not limited to these. The fiber group is preferably dispersed so as to be entangled three-dimensionally inside the gel-like pressure-sensitive adhesive body 12.

It is the schematic perspective view which showed the conventional pad material which provided the gel-like adhesive body to the one side whole surface of a support sheet. In the pad material of FIG. 1, it is the schematic side view which showed the state which affixed the peeling sheet on the gel-like adhesive body. In the pad material of FIG. 1, it is the schematic plan view which showed the state which removed the gel-like adhesive body in the peripheral part of a support sheet. It is the schematic plan view which showed the pad material which concerns on Embodiment 1 of this invention, and showed the state by which the gel-like adhesive body was provided in the shape of several lines through the required space | interval on the single side | surface of a support sheet. It is the schematic plan view which showed the example of a change of the pad material which concerns on said Embodiment 1, and showed the state which provided the vent hole in the support sheet in the non-application | providing part to which the gel-like adhesive body is not provided at all. The 1st example of manufacture which manufactures the pad material which concerns on said Embodiment 1 is shown, The same figure (A) and (B) makes a gel-like adhesive body line shape so that it may pass through a required space | interval on a support sheet. It is the schematic plan view and schematic front view which showed the state provided to. The 2nd manufacture example which manufactures the pad material which concerns on said Embodiment 1 is shown, The same figure (A) shows the state which provides a gel-like adhesive body in a line form so that it may pass through a required space | interval on a transfer sheet. The schematic plan view shown in the figure is a schematic front view showing a state in which the gel-like pressure-sensitive adhesive supplied on the transfer sheet is transferred to the support sheet. The 3rd manufacture example which manufactures the pad material which concerns on said Embodiment 1 is shown, The same figure (A) shows each accommodating part of the accommodating body by which the accommodating part which consists of a groove-shaped recessed part was provided with the required space | interval FIG. 5B is a schematic plan view showing a state where the gel-like pressure-sensitive adhesive body is housed, and FIG. 5B is a plan view in which the support sheet is disposed on the container body so as to close each housing portion in which the gel-like pressure-sensitive adhesive body is housed. It is the schematic sectional drawing which showed the state. It is the schematic plan view which showed the pad material which concerns on Embodiment 2 of this invention, and showed the state by which the gel-like adhesive body was disperse | distributed and provided on the single side | surface of the support sheet. The 1st manufacture example which manufactures the pad material which concerns on said Embodiment 2 is shown, The figure (A) and (B) is the state which disperse | distributes a gel-like adhesive body on a support sheet, and gives it. It is the schematic plan view and schematic front view which showed. The 2nd manufacture example which manufactures the pad material which concerns on said Embodiment 2 is shown, The same figure (A) is the outline which showed the state which disperse | distributes and gives a gel-like adhesive body on a transfer sheet. The top view and the same figure (B) are the schematic front views which showed the state which transfers the gel-like adhesive body supplied on the transfer sheet to a support sheet. The 3rd manufacture example which manufactures the pad material which concerns on said Embodiment 2 is shown, The same figure (A) is shown in each accommodating part of the accommodating body in which the accommodating part which consists of circular recessed parts was provided with the suitable space | interval. A schematic plan view showing a state in which the gel-like pressure-sensitive adhesive body is accommodated, and FIG. 5B is a diagram in which the support sheet is arranged on the container so as to close each accommodating portion accommodated in the gel-like pressure-sensitive adhesive body. It is the schematic sectional drawing which showed the state.

Explanation of symbols

A1, A2 Pad material 11 Support sheet 12 Gel-like adhesive 14 Non-applied portion 15 Vent 20 Feed device 21 Feed nozzle 30 Transfer sheet 40 Housing 41 Housing

Claims (6)

  In a pad material in which a gel-like pressure-sensitive adhesive body containing a water-soluble polymer and water is provided on a breathable support sheet, the gel-like pressure-sensitive adhesive is placed at an appropriate position on the support sheet. A pad material, characterized in that a non-giving part to which no body is given is provided.   The pad material according to claim 1, wherein the gel-like pressure-sensitive adhesive body is provided on the support sheet in a plurality of lines with a predetermined interval.   2. The pad material according to claim 1, wherein the gel-like pressure-sensitive adhesive body is dispersed and provided on the support sheet.   A gel-like pressure-sensitive adhesive body that gels with a water-soluble polymer and water is directly applied by providing a non-granted portion to which no gel-like pressure-sensitive adhesive material is imparted on a breathable support sheet. A method for producing a pad material characterized by the above.   On the transfer sheet, a gel-like pressure-sensitive adhesive body containing a water-soluble polymer and water is provided so as to provide a non-granted portion to which no gel-like pressure-sensitive adhesive body is applied. A method for producing a pad material, wherein the applied gel-like pressure-sensitive adhesive is transferred onto a breathable support sheet.   Using a container in which a plurality of open accommodation parts for containing a water-soluble polymer and a gel-like adhesive body that contains water is separated and provided, and the above-mentioned gel-like adhesion is provided in each accommodation part of the accommodation body. A method for producing a pad material, comprising: housing a body, and placing a support sheet having air permeability on the housing body so as to close each housing portion.

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