Adhesive sheet for cooling

A patch and sticking technology, which is applied to cooling appliances for therapeutic treatment, sheet-like delivery, contraceptives, etc., can solve problems such as impaired cooling sensation, and achieve high cooling effect and good cooling sensation

Active Publication Date: 2017-02-22
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the skin temperature of the sheet-attached site rises, or when the skin temperature is maintained at the same level for a certain period of time, there is a high possibility that the cooling sensation will be impaired.

Method used

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  • Adhesive sheet for cooling
  • Adhesive sheet for cooling
  • Adhesive sheet for cooling

Examples

Experimental program
Comparison scheme
Effect test

reference example 1～13

[0083] "Reference Examples 1-13: Fiber Sheet Layer"

[0084] Reference example 1: Rayon (basis weight 18g / m 2 , Thickness 0.06mm)

[0085] Reference example 2: Rayon (basis weight 20g / m 2 , Thickness 0.07mm)

[0086] Reference example 3: Polyvinyl alcohol (PVA) + rayon + pulp + (polypropylene (PP) (core) / polyethylene (PE) (sheath)) = 3+37+32+28 (mass%) ( Basis weight 17g / m 2 , Thickness 0.07mm)

[0087] Reference example 4: PVA+rayon+(PP(core) / PE(sheath))=10+50+40 (mass%) (basis weight 21g / m 2 , Thickness 0.14mm)

[0088] Reference Example 5: Cellulose (Basis Weight 13.5g / m 2 , Thickness 0.07mm)

[0089] Reference example 6: (Polyethylene terephthalate (PET (core)) / low melting point PET (sheath)) + pulp = 90 + 10 (mass%) (basis weight 20g / m 2 , Thickness 0.28mm)

[0090] Reference example 7: (PET (core part) / low melting point PET (sheath part)) + pulp=80+20 (mass%) (basis weight 20g / m 2 , Thickness 0.24mm)

[0091] Reference example 8: (PET (core part) / low melting point PET (sheath part))...

Embodiment 1～9、 comparative example 1～5

[0099] According to the formula of the water-containing polymer gel shown in Table 2, the water-containing polymer gel was prepared. Next, a water-containing polymer gel was laminated in the amount shown in Table 2 on the fiber sheets of Reference Examples 1 to 13, and after heat curing, a cooling patch was obtained.

[0100] Specifically, first, a mixture of glycerin, propylene glycol in which methyl paraben is dissolved by heating, sodium carboxymethyl cellulose, and dry aluminum hydroxide gel is put into the kneader, and then the succinic acid aqueous solution is added , Prepare uncrosslinked gel stock solution. Next, the obtained uncrosslinked gel stock solution was coated on a polypropylene film and embedded, and the layered amount of the water-containing polymer gel was 750 g / m based on the stock solution using a Baker applicator. 2 (Water content 656g / m 2 ) Method to adjust the thickness to form a sheet. After the obtained sheet was enclosed in an aluminum pillow and seal...

Embodiment 10、11、 comparative example 6、7

[0108] The water-containing polymer gel formed according to the formula shown in Table 2 was used. In Example 10, the layered amount of the water-containing polymer gel was 1500 g / m based on the original solution. 2 (Moisture content 1315g / m 2 The thickness was adjusted in the manner of ). In Example 11, the moisture content of the water-containing polymer gel was set to 79.4% by mass. Except for this, the cooling patch was prepared in the same manner as in Example 3. In addition, in Comparative Example 6, the water content of the water-containing polymer gel was set to 63% by mass, and except for that, the cooling patch was prepared in the same manner as in Example 7. In Comparative Example 7, the water content of the water-containing polymer gel was set to 63% by mass, and the lamination amount of the water-containing polymer gel was 1050 g / m based on the original solution. 2 (Moisture content 661g / m 2 Except for coating and adjusting the thickness in the manner of ), the cooli...

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Abstract

The present invention relates to an adhesive sheet for cooling that satisfactorily maintains a cooling effect using the heat of vaporization of water and that can demonstrate a sustained high-level cooling effect. The adhesive sheet for cooling is formed by layering a water-containing polymer gel (A) and a fiber sheet (B) and has an amount of moisture of 585-1700 g / m2, the water-containing polymer gel (A) having a moisture content of 65-95 mass%, and the fiber sheet (B) having a thickness of 0.001-1 mm, a grammage of 3-70 g / m2, and a water absorbency test value of 1-16000 seconds.

Description

Technical field [0001] The invention relates to a cooling patch. Background technique [0002] Conventionally, there has been known a cooling gel sheet in which a nonwoven fabric and a water-containing polymer gel layer are laminated. It is known that when a cooling gel sheet is applied to the skin, the side of the water-containing polymer gel layer is used in contact with the skin, thereby utilizing the heat of vaporization of water to exert a local cooling effect. Such a cooling gel sheet has a basis weight of 100g / m 2 It is composed of a fiber layer of a certain non-woven fabric or woven fabric with a thickness of about 100% and a water-containing gel layer containing polyacrylic acid or polyacrylic acid derivatives as the main agent. In order to improve the cooling performance, it is also tried to increase the water content of the gel or The cooling continuity has also attempted to increase the thickness of the water-containing gel layer (for example, Non-Patent Documents 1 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F7/02
CPCA61F2007/0052A61F7/02A61F7/10A61F2007/0206A61F2007/0214A61F2007/0219A61P29/00A61K9/7023A61F2007/0223A61F2007/0244A61F2007/0203
Inventor 小幡洋辅神馆隆史
Owner KAO CORP
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