KR100973510B1 - Cooling stretch body - Google Patents

Abstract

The cooling stretchable body 11 is comprised centering on the hydrogel layer 13 containing a large amount of water contained in the water-soluble polymer. On the lower surface of the hydrogel layer 13, a first sheet body 14 having a stretch function of the fiber itself is disposed on the front surface thereof, and the adhesive layer 17 containing aluminum powder on the front surface thereof is a release paper 19. It is formed with). On the other hand, the second sheet body 16 that is stretchable in at least one side direction is disposed on the entire upper surface of the hydrogel layer 13. In use, the release paper 19 may be peeled off and the adhesive layer 17 may be directly attached to the affected part. Thereby, while a sticking state is stabilized, the cooling effect by vaporization of the water | moisture content of the water-containing gel layer 13 through the 1st sheet | seat body 14 and the 2nd sheet body 16 acts on a affected part.

Cooling and stretching body, heat absorbing layer, adhesive layer, nonwoven fabric, skin, bonding strength

Description

Cooling and Stretching Body {STRETCHABLE COOLING SHEET}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling stretchable body, and more particularly to a cooling stretchable body which can be directly bonded to the skin for icing as a method for caring for a body after sports.

As a technique for absorbing heat by directly contacting the skin, an aromatic gel sheet coated with a gel material containing water has been proposed (see Japanese Patent Laid-Open No. 11-246397). In addition, a cooling body mounting tool using an endothermic action and a compression action has also been proposed (see Japanese Patent Laid-Open No. 2001-87080). Furthermore, a cooling pack in which the coolant is processed into a sealed form when there is heat generation has been proposed, and is used after exercise or in a general household (see Japanese Patent No. 3574496).

It is assumed that the gel layer surface is attached to the skin in order to care for pain and muscles of the joint due to pain, inflammation, heat, etc. due to trauma, bruise, fatigue, etc. received during the exercise of the gel sheet as described above. In this case, since the adhesive force of the gel layer itself is weak, it will peel off immediately when it moves, and it cannot be said that it is convenient to use. In addition, when exercising immediately after cooling, it is necessary to remove the patch itself.

The adhesive layer is not formed in the cooling bag containing the liquid, the cooling pack which processed the coolant in the form of a bag, or the icing pack made of rubber used in the shoulder or elbow with ice. Therefore, it is necessary to press the bag tightly by hand or fix it with a rubber band or a cotton fastener. In this case, since the contents are ice or a coolant, the affected part may be excessively cold and frostbite may cause an accident.

In addition, if a patch, a cooling pack, or the like is directly applied to or attached to the skin, there is a problem that the affected body suddenly becomes cold and the body is shrunk. Moreover, after cooling, it is necessary to tap for protecting the affected area, which needs to be prepared for separate taping.

The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a cooling stretchable body that is not easily peeled off even when moving during icing.

In order to achieve the above object, the cooling stretchable body of the first aspect of the present invention is a cooling stretchable body that is used to be applied to a portion of a skin such as skin, and includes a heat absorbing layer that absorbs heat by vaporization of moisture to be retained, and a heat absorbing layer. It is provided in the front surface of the one side of, and is equipped with the 1st sheet body which has elasticity, and the adhesion layer formed in the outer surface of the 1st sheet body.

If comprised in this way, the whole cooling expansion-contraction body which has a heat absorption layer will be able to expand and contract.

The cooling stretchable body of the second aspect of the present invention is the configuration of the invention of the first aspect, wherein the heat absorbing layer is formed of a hydrous gel layer.

This configuration makes it possible to retain a large amount of moisture.

The cooling stretchable body of the third aspect of the present invention is the configuration of the invention of the second aspect, wherein the first sheet member is made of a nonwoven fabric having the fibers themselves stretchable.

If comprised in this way, expansion and contraction of a cooling expansion-and-contraction body will be possible in either direction.

The cooling stretchable body of the fourth aspect of the present invention further includes a second sheet body formed on the entire surface of the other side surface of the heat absorbing layer in the configuration of the invention of the second or third aspect.

When comprised in this way, the other side surface of a hydrous gel layer is covered by the 2nd sheet | seat body.

The cooling stretchable body of the fifth aspect of the present invention is the configuration of the invention of the fourth aspect, wherein the second sheet member is made of a nonwoven fabric.

If comprised in this way, air permeability of a 2nd sheet body will be ensured.

The cooling stretchable body of the sixth aspect of the present invention is the structure of the invention according to any one of the first to fifth aspects, wherein the adhesion layer contains a metal powder.

If comprised in this way, the thermal conductivity of an adhesion layer will become high.

In the structure of the 5th aspect of the invention, in the cooling stretchable body of the 7th aspect of this invention, the bonding force of a 1st sheet | seat body and a heat absorbing layer is made smaller than the bonding force of a 2nd sheet body and a heat absorbing layer.

When comprised in this way, when a force is applied to the direction which peels a 2nd sheet body, it will separate from a 1st sheet body with a heat absorption layer.

As described above, in the cooling stretchable body of the first aspect of the present invention, the entire cooling stretchable body having the heat absorbing layer can be stretched and held, so that the heat absorbing layer can be kept in a close state regardless of the shape of the portion to be covered. In addition, when the first sheet body is used as a taping material, the fixing effect by taping and the cooling effect of the heat absorbing layer are synergistically exerted, so as to soothe the inflammation of the pouch portion and the like, thereby enabling effective treatment. Moreover, when the heat absorbing layer is removed, the taping effect of the first sheet body is maintained as it is, so that it is convenient to use.

Since the cooling stretchable body of the second aspect of the present invention can retain a large amount of moisture in addition to the effects of the invention of the first aspect, the evaporation of moisture takes time, and the duration of the endothermic effect is long.

The cooling stretchable body of the third aspect of the present invention can be expanded and contracted in any direction in addition to the effect of the invention of the second aspect, so that the sticking portion is easy to be applied wherever the portion to be covered is improved, and the usability is improved. . In addition, since the nonwoven fabric has air permeability, the vaporization of the heat absorbing layer is promoted, and the cooling efficiency is improved.

In the cooling stretchable body of the fourth aspect of the present invention, in addition to the effect of the invention of the second or third aspect, the other side of the hydrous gel layer is covered by the second sheet body so that the hydrous gel layer does not directly contact clothing or the like. Usability is improved.

The cooling stretchable body of the fifth aspect of the present invention, in addition to the effect of the invention of the fourth aspect, ensures the air permeability of the second sheet body, thereby maintaining the cooling effect without inhibiting vaporization of the hydrous gel layer.

In addition to the effect of the invention described in any one of the first to fifth aspects of the cooling stretchable body of the sixth aspect of the present invention, the thermal conductivity of the adhesive layer is increased, so that the cooling effect of the patch is higher and the therapeutic effect is improved.

The cooling stretchable body of the seventh aspect of the present invention, in addition to the effect of the fifth aspect of the invention, is removed from the first sheet body together with the heat absorbing layer when a force is applied in a direction in which the second sheet body is peeled off. It is easy to use and convenient.

1 is a perspective view showing a schematic shape of a cooling expansion and contraction body according to a first embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view showing a manufacturing process of the cooling stretchable body shown in FIG. 1.

1 is a perspective view showing a schematic shape of a cooling expansion and contraction body according to a first embodiment of the present invention.

Referring to the drawings, the cooling stretching body 11 is configured around the hydrous gel layer 13 in the form of a sheet. Specifically, the hydrogel layer 13 is composed of, for example, a gel structure composed of, for example, 10 to 40% by weight of a water-soluble polymer, 50 to 80% by weight of water content formed by this, and 10% by weight of an additive. An elastic nonwoven fabric having a coating amount of 30 to 100 g / m ² is formed as the first sheet body 14 on the entire surface of the lower surface of the hydrogel layer 13. Specifically, the first sheet body 14 is made of a material in which the fibers themselves, such as polyester elastomer and urethane, have elasticity. Thereby, the 1st sheet | seat body 14 is comprised so that it can expand and contract in the front direction in the surface.

The adhesive layer 17 is formed in the lower surface of the 1st sheet | seat body 14 in the adhesion amount (weight before drying) 80-150g / m <^2> in the whole surface. Specifically, the pressure-sensitive adhesive layer 17 is composed of an acrylic pressure-sensitive adhesive containing 1 to 80% by weight of aluminum powder having an average particle diameter of 1 to 30 µm. As metal powders other than aluminum powder, gold, platinum, silver, copper, iron, etc. can be considered, but aluminum powder is preferable from the viewpoint of cost and heat conduction. By containing aluminum powder, the thermal conductivity of the adhesion layer 17 becomes high, and contributes to the improvement of the cooling effect by the heat of vaporization of the hydrogel layer 13. Moreover, the release paper 19 is formed in the whole lower surface of the adhesion layer 17. FIG.

On the other hand, the second sheet body 16 is formed on the entire upper surface of the hydrogel layer 13. Specifically, the second sheet body 16 is composed of a stretchable nonwoven fabric having a coating amount of 20 to 100 g / m ² . The nonwoven fabric is made of, for example, rayon, and is formed to be stretchable in at least one direction in the plane thereof. And the 2nd sheet body 16 is formed in the whole upper surface of the hydrogel layer 13, and the function of protecting the surface of the hydrogel layer 13 is exhibited. That is, when the cooling stretchable body 11 is attached to the affected part, the first sheet body 14 is on the skin side, and the second sheet body 16 is on the clothes side. At this time, the second sheet body 16 is configured to prevent the hydrogel layer 13 from being destroyed by friction such as clothing. In addition, by forming the second sheet body 16, vaporization of water retained in the hydrogel layer 13 can be appropriately suppressed, and the cooling effect of the hydrogel layer 13 can be maintained for a long time.

Next, the usage method of this cooling expansion-contraction body 11 is demonstrated.

Usually, the cooling stretchable body 11 is enclosed in a non-permeable bag or the like. As a result, vaporization of water retained in the hydrous gel layer 13 is prevented. In use, this bag is torn, the cooling stretchable body 11 is taken out, and the release paper 19 is removed from the adhesive layer 17. In this state, the adhesive layer 17 is brought into direct contact with the affected part to be iced. Since the 1st sheet body 14 which hold | maintains the adhesion layer 17 is expandable in all directions in the surface as mentioned above, it is easy to attach the cooling expansion and contraction body 11 easily regardless of the site | part of an affected part. It becomes possible. At this time, when the adhesive layer 17 is pasted in the stretched state, the continuity may be lost and the air permeability may be increased.

The heat of the affected part is transferred to the hydrous gel layer 13 through the adhesive layer 17 and the first sheet body 14. At this time, since the adhesive layer 17 contains aluminum powder as described above, the heat conduction effect is improved as compared with the aluminum powder. Therefore, the body temperature of the affected part is efficiently transferred to the hydrous gel layer 13 and promotes vaporization of moisture retained in the hydrogel layer 13. As a result, the affected part is cooled by the heat of vaporization of the hydrogel layer 13, and the icing effect is exerted. At this time, since the first sheet member 14 has air permeability in its structure, the warm air on the affected part reaches the hydrogel layer 13 and contributes to the vaporization of the hydrogel layer 13.

Since the second sheet body 16 formed on the upper surface of the hydrogel layer 13 is configured to be stretchable in at least one direction in the surface as described above, the change in elongation at the time of sticking to the affected part of the cooling stretchable body 11 is prevented. It becomes easy to follow. In addition, since the second sheet body 16 itself has air permeability, there is no fear of inhibiting vaporization of water retained in the hydrogel layer 13.

Thus, in the cooling expansion-contraction body 11 which concerns on this embodiment, peeling off the peeling paper 19 and sticking the adhesive layer 17 directly to a wound part, making it easy to icing the wound part and peeling off even if the affected part is moved. There is no fear of falling off. Accordingly, an effective icing effect can be expected.

Next, the state in which the water retained in the hydrous gel layer 13 is completely vaporized will be described. In this state, the cooling expansion and contraction body 11 does not already exhibit a cooling effect. Therefore, the hydrogel layer 13 is unnecessary. Accordingly, when the hydrogel layer 13 is peeled off together with the second sheet body 16, the first sheet body 14 pasted through the adhesive layer 17 remains on the affected part. Since the 1st sheet body 14 has elasticity as mentioned above, it exhibits a taping effect with respect to a wound part in that state. Normally, after icing is completed, it is necessary to tap the affected part using a taping material or the like separately. However, in the cooling stretchable body 11 which concerns on this embodiment, since it does not need to tape separately only by removing the water-containing gel layer 13 and the 2nd sheet body 16, it becomes an effective treatment.

In this embodiment, it is comprised so that the water-containing gel layer 13 and the 2nd sheet body 16 can be easily removed from the 1st sheet body 14 in order to maintain the taping effect as it is after icing. In other words, the bonding force between the hydrogel layer 13 and the first sheet body 14 is smaller than the bonding force between the hydrogel layer 13 and the second sheet body 16 so that the first sheet body 14 and the second sheet body ( The structure (coating amount and material) of 16) is set. Accordingly, when the second sheet body 16 is held and a force is applied to remove it, the hydrogel layer 13 is easily separated from the first sheet body 14 together with the second sheet body 16. .

FIG. 2 is a schematic cross-sectional view showing a manufacturing process of the cooling stretchable body shown in FIG. 1.

As shown in (1), the release paper 19 which consists of a predetermined material and thickness is prepared, and the adhesion layer 17 is formed in the whole surface of the one side as shown in (2).

Next, as shown to the (3), the 1st sheet | seat body 14 is provided in the outer surface of the adhesion layer 17. Next, as shown to the (3) in FIG. The hydrogel layer 13 is further formed on the entire surface on the outer surface of the first sheet body 14. In addition, a tackifier for exerting an adhesive effect is added to the hydrous gel layer 13. A part of the hydrogel layer 13 penetrates from the surface of the first sheet body 14 to exhibit a predetermined bonding force. This penetration amount acts in inverse proportion to the coating amount of the first sheet body 14. That is, when the coating amount of the first sheet body 14 is increased, the surface becomes dense, so that the penetration amount of the hydrogel layer 13 is reduced, so that the bonding force with the hydrogel layer 13 is lowered.

Next, as shown to (5), the 2nd sheet | seat body 16 is provided in the outer surface whole surface of the hydrous gel layer 13. At this time, a part of the upper surface of the hydrogel layer 13 penetrates into the lower surface of the second sheet body 16 to exert a predetermined bonding force. This bonding force also changes according to the coating amount of the second sheet body 16. And in this embodiment, as mentioned above, the 1st sheet | seat so that the bonding force with respect to the 2nd sheet body 16 of the hydrous gel layer 13 may become larger than the bonding force with respect to the 1st sheet body 14 of the hydrogel layer 13. The sieve 14 and the 2nd sheet body 16 are set. Accordingly, when a force is applied to the second sheet body 16 in the peeling direction, the hydrogel layer 13 is separated from the first sheet body 14 together with the second sheet body 16. In this way, it becomes possible to manufacture the cooling stretchable body shown in FIG.

In addition, although the water-containing gel layer was used as the heat absorbing layer in the above-described embodiment, if the heat of vaporization is taken away by vaporization of water, it may be of a different structure.

In addition, although the nonwoven fabric which consists of a fiber which has elasticity was used as said 1st sheet body, the rubber sheet etc. which have elasticity may be sufficient instead. In this case, it is more preferable to form ventilation holes and the like to impart air permeability.

Furthermore, in the above embodiment, the adhesive layer is applied to the entire lower surface of the first sheet body, but the adhesive layer may be applied in a lattice or island form in order to improve air permeability.

Moreover, in the above embodiment, the second sheet body uses a nonwoven fabric different from the nonwoven fabric of the first sheet body, but needless to say, the same nonwoven fabric as the nonwoven fabric of the first sheet may be used.

In addition, although the metal powder was contained in the adhesion layer in the above-mentioned embodiment, a metal powder does not necessarily need to exist and may be absent.

In addition, in the above-described embodiment, the bonding force between the first sheet body and the hydrous gel layer is set smaller than the bonding force between the second sheet body and the hydrous gel layer, but these may be the same or vice versa.

As mentioned above, the cooling expansion-contraction body which concerns on this invention is suitable for the sheet | seat which sticks directly on skin in order to perform icing as a body care method, such as after sports.

Claims (7)

As a cooling stretch body to stick to the skin part such as skin, and to use, An endothermic layer 13 that absorbs heat by vaporization of retained water, A first sheet body 14 formed on a front surface of one side of the heat absorbing layer and having an omnidirectional elasticity; It is provided with the adhesion layer 17 formed in the outer surface of the said 1st sheet body, It is further provided with the 2nd sheet body 16 formed in the whole surface of the other side of the said heat absorption layer, The bonding force between the first sheet body and the heat absorbing layer is smaller than the bonding force between the second sheet body and the heat absorbing layer. The cooling stretchable body according to claim 1, wherein the heat absorbing layer comprises a hydrous gel layer. The cooling stretchable body according to claim 2, wherein the first sheet body is made of a nonwoven fabric having the elasticity of the fiber itself. The cooling stretchable body according to any one of claims 1 to 3, wherein the second sheet body is made of a nonwoven fabric. The stretchable body according to any one of claims 1 to 3, wherein the pressure-sensitive adhesive layer comprises a metal powder. delete delete

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