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Cosmetic patch and using method thereof, and cosmetic patch package

A technology of patches and oxyalkylene chains, which is applied in pharmaceutical formulations, cosmetic preparations, cosmetics, etc., can solve problems such as reduced adhesion, discoloration, and deterioration of vitamins, and achieve the effect of reducing pigmentation

Inactive Publication Date: 2006-09-06
多喜兰株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in combination with water-soluble vitamin C (ascorbic acid), which is easily oxidized and hydrolyzed, the acidic compound produced by the degradation of the gel can cause deterioration or discoloration of the vitamin
In addition to this problem, substrates made of aqueous gels can change drastically in terms of adhesion depending on the water content, so that a reduction in water content results in a significant reduction in adhesion

Method used

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  • Cosmetic patch and using method thereof, and cosmetic patch package
  • Cosmetic patch and using method thereof, and cosmetic patch package
  • Cosmetic patch and using method thereof, and cosmetic patch package

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0250] Molded using polyethylene terephthalate figure 2 tray as shown in the illustration. The polyolefin film and have 40g / m 2 The basis weight polyester nonwoven was heat laminated and the resulting laminate was placed on the bottom of the tray with the nonwoven facing up.

[0251] The polyols and polyisocyanates and catalysts each having the structure, molecular weight and oxyalkylene segment corresponding to the reference symbol of the structural formula as described in Table 1 are mixed in the ratio as described in Table 1, and the mixture is added dropwise to note Grooves for full pallets. By reacting at 60° C. for a predetermined time, a gel layer of urethane gel having the nonwoven fabric and the polyolefin film laminated on the bottom surface while having the nonwoven fabric embedded in the surface layer of the bottom surface was formed.

[0252] A water / ethanol solution of vitamin C was added dropwise to the upper surface of the gel layer to introduce vitamin C t...

Embodiment 2

[0260] As in Example 1, the polyolefin film and the nonwoven fabric were thermally laminated, and the resulting laminate was placed in the grooves of a tray made of polyethylene terephthalate. Mix polyols and polyisocyanates and catalysts each having a structure, molecular weight, and oxyalkylene segment corresponding to the reference symbol of the structural formula as described in Table 2, and mix them in a ratio as described in Table 2, and fill the recesses of the tray with the mixture. groove. By reacting at 60° C. for a predetermined time, a gel layer of urethane gel having the nonwoven fabric and the polyolefin film laminated on the bottom surface while having the nonwoven fabric embedded in the surface layer of the bottom surface was formed.

[0261]

Polyol

Structural formula (D), R=H, molecular weight: 2000

(AO)=(CH 2 CH 2 O) m (CH(CH 3 )CH 2 O) n

Random copolymer, m:n=30:70

number of copies

100

...

Embodiment 3

[0266] As in Example 1, the polyolefin film and the nonwoven fabric were thermally laminated, and the resulting laminate was placed in the grooves of a tray made of polyethylene terephthalate. The polyols and polyisocyanates and catalysts each having the structure, molecular weight and oxyalkylene segment corresponding to the reference symbols of the structural formula as described in Table 3 were mixed in the ratio as described in Table 3, and the mixture was filled into the recesses of the tray. groove. By reacting at 60° C. for a predetermined time, a gel layer of urethane gel having the nonwoven fabric and the polyolefin film laminated on the bottom surface while having the nonwoven fabric embedded in the surface layer of the bottom surface was formed.

[0267]

Polyol

Structural formula (D), R=H, molecular weight: 1700

(AO)=(CH 2 CH 2 O) m (CH(CH 3 )CH 2 O) n

Random copolymer, m:n=70:30

number of copies

100

...

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Abstract

The present invention provides a cosmetic patch which can contain therein either one of a water soluble vitamin and a fat soluble vitamin, particularly when the vitamin is vitamin C, can contain and retain vitamin C stably while avoiding its deterioration due to oxidation or hydrolysis and not causing deterioration of the gel, and is equipped with a desired level of adhesive force; a using method of a cosmetic patch capable of effectively transferring vitamin C into the skin from the cosmetic patch; and a cosmetic patch package for storing the cosmetic patch therein. The present invention relates to a cosmetic patch obtained.by incorporating a vitamin in an adhesive polyurethane gel which has hydrophilic alkylene oxide segments and hydrophobic alkylene oxide segments and has most or all of these segments in liquid form at normal temperature.

Description

field of invention [0001] The invention relates to a cosmetic patch containing vitamins and a method for using the cosmetic patch. The present invention also relates to a cosmetic patch package having a cosmetic patch containing water-soluble vitamins stored therein. Background technique [0002] Known vitamins, for example, vitamin C, which is a typical water-soluble vitamin, and vitamin E, which is a typical fat-soluble vitamin, are effective in whitening skin, controlling pigmentation, anti-aging skin and reducing skin rough. As a cosmetic patch having such vitamins incorporated into a hydrogel serving as a base, there is known a mask obtained by incorporating vitamins and another skin beautifying component into a base material made of acrylic cross-linked A joint-type hydrogel composed of polyacrylic acid and / or polyacrylate ester, water, and a crosslinking agent as essential components (for example, see Patent Document 1). Masks having skin beautifying components inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/02A61K8/67A61K47/34A61Q19/00
Inventor 敷波保夫茑薰安川和宏冈崎健之森井敬
Owner 多喜兰株式会社
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