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Whitening strip and preparation process thereof

A white patch, long-lasting technology, applied in cosmetic preparations, cosmetic preparations, preparations for skin care, etc., can solve the problems of insignificant effect, difficult to dull skin, dullness, and difficult to guarantee efficacy.

Inactive Publication Date: 2011-08-24
候玉庆 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the basic defect of these products is that they can work within a short period of time after application, but the long-term effect is not obvious, especially it is difficult to essentially improve the dullness and dullness of the skin, and the efficacy is difficult to guarantee

Method used

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  • Whitening strip and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: Preparation of whitening patch

[0013] Preparation of cosmetic matrix: styrene-isoprene-styrene block copolymer (SIS) 1-70%, plasticizer 1-60%, tackifier 1-30%, antioxidant 0.1-3 %, react at a high temperature of 100-200°C for 0-5 hours to make a matrix material suitable for human skin. After cooling the glue block, set aside.

[0014] Preparation of functional ingredient raw material extract: First, weigh 1-5% arbutin crystals and grind them for use, then weigh 0.5-8% vitamin C derivatives, 0.1-3% licorice essence, and then take 0.01-2% Mulberry extract, 0.1-3% vitamin E acetate, 1-10% azone, 1-10% high-grade olive oil, etc. The above raw materials are mixed, stirred and evenly mixed. Stir the prepared raw material extract repeatedly for 10-20 minutes to make it fully mixed and set aside.

[0015] Preparation method: Put the cosmetic matrix and the functional ingredient raw material extract into the quantitative sol tank and the feeding tank respecti...

Embodiment 2

[0017] Embodiment two: arbutin transdermal absorbability comparison

[0018] The new whitening patch prepared in Example 1 was tested on isolated skin with the commercially available water-soluble patch and emulsion containing similar ingredients, and the experimental results were compared.

[0019] Test animals:

[0020] Adult mice (20g-25g) were killed, and the intact skin was peeled off (pre-depilated with 10% sodium sulfide for at least 48 hours), and the subcutaneous fat was removed.

[0021] experiment method:

[0022] The ex vivo skin was mounted on a Frans diffusion cell. The arbutin-containing test substances (new whitening patches, water-soluble patches, emulsions) were evenly spread on the skin, and the receiving fluid under the skin was collected 5 hours later, and the arbutin content was detected by HPLC.

[0023] test results:

[0024] The HPLC data analysis of the receiving solution through the Frans diffusion cell within 5 hours shows that with the prolonga...

Embodiment 3

[0026] The age of the test population:

[0027] Select 30 female volunteers aged 20, 30, and 40 and above.

[0028] Test plan:

[0029] Record personal information, create archives, divide by age group and instrument test, and then group and number, and give new whitening eye patches respectively. Observe with naked eyes, and take pictures to record the whitening effect before and after the test and record the phenomenon. Separately test and record each indicator, as well as the volunteers' feelings of use, and make a comprehensive evaluation.

[0030] Instructions:

[0031] According to the use method of the new whitening patch, remove the packaging, take it out, remove the protective layer, and gently stick the patch on the designated part of the tester. You can gently massage with your fingers to help the skin quickly absorb nutrients and achieve a whitening effect.

[0032] The use time is two weeks, use it after cleansing the skin every night, apply it to the designa...

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Abstract

The invention discloses a whitening strip suitable for all age groups of persons to use externally. The nutrient whitening strip comprises the following main ingredients: vitamin C derivatives, arbutin, liquorice essence and mulberry extract liquor. The whitening strip adopts an adhesive composed of a novel elastomer material styrene-isoprene-styrene (SIS) triblock copolymer, a tackifier and a plasticizer as a cosmetic matrix material. The novel whitening strip for external use can be prepared into different shapes by applying the low-temperature online melting forming technology, thus being suitable for different age groups of persons to use in different positions. The nutrient whitening strip for external use has clear ingredient efficacy, good transdermal permeability and soft texture, can be released permanently, and is of high elasticity. The whitening strip can directly reach the skin layer to achieve the effects of long-time whitening, moisturizing, skin relieving and the like.

Description

technical field [0001] The invention relates to an external patch of a whitening effect cosmetic using a novel elastomer material-styrene-isoprene-styrene block copolymer (SIS) matrix material and a preparation method thereof, belonging to the field of cosmetics for skin care. Background technique [0002] The pursuit of skin beauty and health has become one of the most concerned topics for modern women. Due to the complex social environment, people of all ages are affected by factors such as stress, lack of sleep, ultraviolet rays, incomplete cleansing, and smoking, which lead to poor blood circulation and poor metabolism, resulting in thickening of the aging stratum corneum and loss of transparency of the skin. His complexion is gray, and no matter how bright the makeup is, it can't improve the dullness on his face. Therefore, promoting the regulation of skin metabolism, removing aged cutin, inhibiting and diluting the formation of melanin, and maintaining the balance of ...

Claims

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Application Information

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IPC IPC(8): A61K8/60A61K8/67A61K8/97A61K8/90A61K8/02A61Q19/02
Inventor 候玉庆史关正
Owner 候玉庆
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