Preparation method of composite base material for facial masks

A technology of composite substrate and facial mask, applied in cosmetic preparations, chemical instruments and methods, pharmaceutical formulations, etc., can solve the problems of unaffordable, high cost of biological fibers, etc. The effect of high liquid rate

Inactive Publication Date: 2016-03-30
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the cost of biological fiber is relatively

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] The preparation method of composite base material for facial mask that the present invention proposes comprises the following steps:

[0016] (1) Lay the non-woven fabric support layer on the internally grounded metal plate. The non-woven fabric support layer is polyester (PET), polypropylene (PP) modified hydrophilic spun-bonded cloth, polyester / sticky Either glue or cotton fiber spunlace cloth;

[0017] (2) The polymer is dissolved in an organic solvent to obtain a polymer spinning solution. In the polymer spinning solution, the mass percent of the polymer is 5-20 wt%, and the polymer is polyacrylonitrile, polyvinyl alcohol Or polylactic acid, the organic solvent is: N, N-dimethylformamide (DMF), dimethylacetamide (DMAc), dichloromethane (DCM), acetone, tetrahydrofuran, formic acid, acetic acid, hexafluoroacetone , one or more of hexafluoroisopropanol, fluoroisopropanol, and trifluoroacetic acid.

[0018] (3) Add the biopolymer substance to the above-mentioned polym...

Embodiment 1

[0026] (1) Spread the spunlace PET non-woven fabric support layer with a grammage of 30g / m2 on the internally grounded metal plate;

[0027] (2) The polyvinyl alcohol with a weighed average degree of polymerization of 1750 and a degree of alcoholysis of 98% is dissolved in the mixed solution of acetone, hexafluoroacetone and DMF, wherein the volume ratio of acetone, hexafluoroacetone and DMF is 7:1:4, configured as a polyvinyl alcohol spinning solution with a mass fraction of 13%, and stirred to dissolve it;

[0028] (3) adding the weighed silk fibroin to the dissolved polymer spinning solution to prepare a mixed spinning solution, the mass percentage of silk fibroin being 10%;

[0029] (4) process the mixed spinning solution on an ultrasonic processor for 60 min;

[0030] (5) Use the above-mentioned mixed spinning solution for electrospinning, control the ambient humidity to 40%, and the temperature to be 25°C, place the spinning needle above the above-mentioned metal plate ...

Embodiment 2

[0032] (1) Spread the PP modified hydrophilic spunbond non-woven fabric support layer with a grammage of 20g / m2 on the inner grounded metal plate.

[0033] (2) be 1750 by the average degree of polymerization that weighed, alcoholysis degree is 98% polyvinyl alcohol, be dissolved in the mixed solution of acetone, hexafluoroisopropanol and DMF, wherein acetone, hexafluoroisopropanol and The volume ratio of DMF is 7:1:4, configured as a polyvinyl alcohol spinning solution with a mass fraction of 13%, and stirred to dissolve it;

[0034] (3) adding the weighed chitin into the dissolved polymer spinning solution to prepare a mixed spinning solution, the mass percentage of chitin is 4wt%;

[0035] (4) process the mixed spinning solution on the ultrasonic processor for 200min;

[0036] (5) Use the above-mentioned mixed spinning solution for electrospinning, control the ambient humidity to 40%, and the temperature to be 25°C, place the spinning needle above the above-mentioned metal ...

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Abstract

The invention relates to a preparation method of a composite base material for facial masks, which belongs to the technical field of facial mask base materials. The preparation method comprises the steps of dissolving any one of hydrophilic macromolecular polyvinyl alcohol, polyacrylonitrile and polylactic acid in an organic solvent, so as to prepare a spinning solution of which the mass fraction is 5 to 20wt%; adding any one of chitin, collagen, silk fibroin, chitosan, sodium alginate and fibroin or a mixture of several of the substances to the spinning solution, and uniformly mixing, so as to obtain a mixed spinning solution of which the mass is 2 to 12% of the total mass of the hydrophilic macromolecular substance and the organic solvent; performing ultrasonic treatment on the mixed spinning solution for 1 to 300 min; collecting the mixed spinning solution on a non-woven fabric support layer by using a processing method of an electrospinning technique, so as to prepare a required composite nanofiber membrane. The composite base material for the facial masks, which is prepared by using the preparation method, has the advantages of excellent antimicrobial property, good air permeability, good application to skin and no stimulation to skin and is favorable for improving the safety and hygiene of the facial masks when the composite base material is used for manufacturing the facial masks, and more essence can be absorbed.

Description

technical field [0001] The invention relates to a method for preparing a composite base material for a facial mask, and belongs to the technical field of facial mask basic materials. Background technique [0002] Today, facial masks are widely used as cosmetic products that have a cosmetic effect on the skin of the face and the like. The principle of the facial mask is to apply a thick layer of dressings with different functions and ingredients on the face to block the contact between the skin and the air. When this layer of dressing is tightly attached to the skin, it will increase the temperature of the skin by inhibiting the secretion of sebum and the evaporation of sweat; after the temperature of the skin rises, blood circulation will be promoted, and the nutrients that penetrate into the skin will be deeper between the cells. spread out more widely. [0003] When the skin is temporarily sealed by the mask, it can slow down the evaporation of moisture on the skin surfa...

Claims

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Application Information

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IPC IPC(8): B32B15/14B32B27/12B32B27/30B32B27/36B32B27/24B32B27/18B32B27/16B32B37/02B32B38/00A61K8/02
CPCB32B15/14A61K8/0212B32B27/12B32B27/16B32B27/18B32B27/24B32B27/30B32B27/308B32B27/36B32B37/02B32B38/0008
Inventor 杨颖梁幸幸卢倩
Owner TSINGHUA UNIV
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