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Preparation method of composite microencapsulated anti-ultraviolet finishing agent

A compound microcapsule and anti-ultraviolet technology, which is applied in skin care preparations, medical preparations containing active ingredients, pharmaceutical formulas, etc., can solve the problems of skin allergies, low absorption capacity of inorganic scattering agents, etc., and achieve good inhibition Effect

Inactive Publication Date: 2019-07-30
余晨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, inorganic scattering agents have low absorption capacity, while most organic screening agents have skin allergies

Method used

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  • Preparation method of composite microencapsulated anti-ultraviolet finishing agent

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A preparation method of a composite microcapsule anti-ultraviolet finishing agent, the components are calculated in parts by weight, comprising the following steps:

[0029] (1) Collect walnut shells, pulverize after drying, add ethanol solution to extract for 40min, and collect the extract;

[0030] (2) Concentrate the extract to 1.5 times the weight of the walnut shell, refrigerate at low temperature for 12 hours, filter, adjust the pH value to 1.5, heat to 70°C, keep warm for 30 minutes, let stand for 12 hours, and filter;

[0031] (3) Add water, stir evenly, adjust the pH value to 6.0, add 0.5wt% activated carbon, stir fully, keep warm at 50°C for 30min, add ethanol, stir evenly, filter immediately, adjust the pH value of the filtrate to 1.5, and keep warm at 70°C 30min, let stand, filter, and wash the filter cake with 1 times the amount of pure water to obtain the walnut shell extract;

[0032] (4) Take fresh eggs, remove the frenulum, separate the egg white and e...

Embodiment 2

[0041] A preparation method of a composite microcapsule anti-ultraviolet finishing agent, the components are calculated in parts by weight, comprising the following steps:

[0042] (1) Collect walnut shells, pulverize after drying, add ethanol solution to extract for 45min, and collect the extract;

[0043] (2) Concentrate the extract to twice the weight of the walnut shell, refrigerate at low temperature for 16 hours, filter, adjust the pH value to 1.6, heat to 75°C, keep warm for 40 minutes, let stand for 16 hours, and filter;

[0044] (3) Add water, stir evenly, adjust the pH value to 6.5, add 0.6wt% activated carbon, stir fully, keep warm at 50°C for 30min, add ethanol, stir evenly, filter immediately, adjust the pH value of the filtrate to 1.7, and keep warm at 75°C 30min, let it stand, filter, and wash the filter cake with 1.5 times the amount of pure water to obtain the walnut shell extract;

[0045] (4) Take fresh eggs, remove the frenulum, separate the egg white and ...

Embodiment 3

[0054]A preparation method of a composite microcapsule anti-ultraviolet finishing agent, the components are calculated in parts by weight, comprising the following steps:

[0055] (1) Collect walnut shells, pulverize after drying, add ethanol solution to extract for 50min, and collect the extract;

[0056] (2) Concentrate the extract to twice the weight of the walnut shell, refrigerate at low temperature for 18 hours, filter, adjust the pH value to 1.8, heat to 75°C, keep warm for 45 minutes, let stand for 18 hours, and filter;

[0057] (3) Add water, stir evenly, adjust the pH value to 6.5, add 0.8wt% activated carbon, stir fully, keep warm at 50°C for 30min, add ethanol, stir evenly, filter immediately, adjust the pH value of the filtrate to 1.8, and keep warm at 75°C 30min, let it stand, filter, and wash the filter cake with 1.5 times the amount of pure water to obtain the walnut shell extract;

[0058] (4) Take fresh eggs, remove the frenulum, separate the egg white and e...

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Abstract

The invention provides a preparation method of a composite microencapsulated anti-ultraviolet finishing agent. The method includes the following steps that walnut shells are dried, crushed and subjected to ethanol extraction, extraction liquid is concentrated, refrigerated, filtered and heated in sequence, and then the extraction liquid is subjected to standing and is filtered; water is added in the extraction liquid, stirring is performed, activated carbon is added, stirring is performed, heat preservation is conducted, ethanol is added, and then stirring, filtering, heat preservation, standing, filtering and washing are conducted sequentially to obtain walnut shell extract; egg white is mixed with water, polyethylene glycol is added, stirring is conducted, the mixture is subjected to standing for layering, supernate is removed to obtain a precipitate, magnesium chloride is added in the precipitate, stirring is performed, and then stirring centrifugation, washing centrifugation and freeze-drying are conducted sequentially to obtain crude mucin; hydroxypropyl methyl cellulose phthalate, a silane coupling agent, ethyl orthosilicate and an ethanol aqueous solution are taken and stirred, and then the walnut shell extract and the crude mucin are added and stirred; sodium stearyl lactate and sodium lignosulphonate are added and stirred; homogenization, spray drying and cooling are performed sequentially to obtain the finishing agent. A fabric treated with the finishing agent prepared by the method has a good anti-ultraviolet effect and certain antimicrobial property.

Description

technical field [0001] The invention relates to a preparation method of a composite microcapsule anti-ultraviolet finishing agent. Background technique [0002] Sunlight is a wave with a wavelength of 200-3000nm, mainly composed of ultraviolet rays, visible light and infrared rays, among which ultraviolet rays have a wavelength of 200-400nm. In recent decades, due to the destruction of the ozone layer, the intensity of ultraviolet radiation in sunlight has increased. It is beneficial for the human body to receive an appropriate amount of ultraviolet radiation. However, excessive ultraviolet radiation will cause harm to the human body. It will burn the skin, age the skin, etc., and cause skin cancer in severe cases. Therefore, it is very necessary to prevent excessive exposure to ultraviolet rays. Clothing is a good barrier for the human body to shield ultraviolet rays. How to improve the anti-ultraviolet function of fabrics and reduce the damage of ultraviolet rays to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/98A61K8/11A61K8/64A61K8/9789A61Q17/04
CPCA61K8/11A61K8/64A61K8/9789A61K8/982A61K2800/56A61Q17/04
Inventor 余晨
Owner 余晨
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