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Preparation method of anti-ultraviolet microcapsule finishing agent

A microcapsule finishing and anti-ultraviolet technology, which is applied in the direction of microcapsule preparation, microsphere preparation, fiber treatment, etc., can solve the problems of poor washing fastness and other problems, and achieve the effect of mild performance, good stability and high absorption efficiency

Pending Publication Date: 2019-10-29
李新根
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a preparation method of an anti-ultraviolet microcapsule finishing agent in view of the poor washing fastness of fabrics that have undergone anti-ultraviolet finishing on the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] In parts by weight, weigh 8 parts of o-nitroaniline, 4 parts of urea, 12 parts of p-tetraoctylphenol, 4 parts of sodium dithionite, 16 parts of sulfuric acid with a mass concentration of 50%, 24 parts of Sodium nitrite solution, 20~25 parts of sodium hydroxide solution with a mass concentration of 15%, 70 parts of absolute ethanol, 40 parts of deionized water, sulfuric acid was slowly added to the deionized water at a flow rate of 40mL / min, and at room temperature at 100r / min Stir at a rotating speed for 20 minutes to obtain a sulfuric acid solution. Add o-nitroaniline to the sulfuric acid solution, stir at 160 r / min for 10 minutes at 0°C, and keep warm to obtain a sulfuric acid solution. Add the sodium nitrite solution at 30 mL / min Slowly add o-nitroaniline sulfuric acid solution at a flow rate of min, stir and react at 180r / min at 0°C for 1 hour to obtain a reaction solution, add urea to the reaction solution, and stir at 100r / min at 0°C 6min, heat preservation, to ob...

Embodiment 2

[0040]In parts by weight, weigh 9 parts of o-nitroaniline, 4.5 parts of urea, 14 parts of p-tetraoctylphenol, 5 parts of sodium dithionite, 18 parts of sulfuric acid with a mass concentration of 50%, 27 parts of Sodium nitrite solution, 23 parts of sodium hydroxide solution with a mass concentration of 15%, 80 parts of absolute ethanol, 45 parts of deionized water, sulfuric acid was slowly added to the deionized water at a flow rate of 45mL / min, and stirred at a speed of 110r / min at room temperature 25min to obtain a sulfuric acid solution, add o-nitroaniline to the sulfuric acid solution, stir at 170r / min for 11min at 2°C, keep warm to obtain an o-nitroaniline sulfuric acid solution, and add the sodium nitrite solution at a flow rate of 35mL / min Slowly add o-nitroaniline sulfuric acid solution, stir and react at 190r / min at 2°C for 1.5h to obtain a reaction solution, add urea into the reaction solution, stir at 110r / min at 2°C for 7min , heat preservation, to obtain a diazoni...

Embodiment 3

[0042] In parts by weight, weigh 10 parts of o-nitroaniline, 5 parts of urea, 15 parts of p-tetraoctylphenol, 6 parts of sodium dithionite, 20 parts of sulfuric acid with a mass concentration of 50%, and 30 parts of sulfuric acid with a mass concentration of 30%. Sodium nitrite solution, 25 parts of sodium hydroxide solution with a mass concentration of 15%, 90 parts of absolute ethanol, 50 parts of deionized water, slowly add sulfuric acid to the deionized water at a flow rate of 50mL / min, and stir at a speed of 120r / min at room temperature 30min to obtain a sulfuric acid solution, add o-nitroaniline to the sulfuric acid solution, stir at 180r / min for 10-12min at 4°C, keep warm to obtain a sulfuric acid solution, add sodium nitrite solution at 40mL / Slowly add o-nitroaniline sulfuric acid solution at a flow rate of min, stir and react at 200r / min at 4°C for 2 hours to obtain a reaction solution, add urea to the reaction solution, and stir at 120r / min at 4°C 8min, heat preserv...

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PUM

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Abstract

The invention relates to a preparation method of an anti-ultraviolet microcapsule finishing agent and belongs to the technical field of sunscreen. The anti-ultraviolet microcapsule finishing agent isprepared from gelatin composite polyvinyl alcohol as a microcapsule wall material, gelatin is a polypeptide molecular mixture with molecular weight reaching tens of thousands to hundreds of thousandsand mainly contains amino acid, gelatin micelle has positive charges below an isoelectric point, the gelatin has excellent hydrophilicity due to a large quantity of hydroxyl on the molecular structure, the gelatin cannot be dissolved in cold water easily, after the gelatin and polyvinyl alcohol are mixed, molecular chains of the polyvinyl alcohol and polypeptide molecules of the gelatin can form astable 3D network structure, the finishing agent has chemical stability and cannot react due to adoption of the gelatin and the polyvinyl alcohol as the wall material and the core material, microcapsules can form a compact film on the surface of fabric, hydrophilic groups of the gelatin can form hydrogen bonds with groups of the fabric, and the washing fastness of the finishing agent can be effectively improved.

Description

technical field [0001] The invention relates to a preparation method of an anti-ultraviolet microcapsule finishing agent, which belongs to the technical field of sun protection. Background technique [0002] Due to the destruction of the atmospheric ozone layer by humans, the ozone layer is becoming thinner and thinner, which greatly increases the amount of ultraviolet radiation reaching the ground. Ultraviolet rays (ultravioletrays referred to as UV) are divided into long-wave ultraviolet (UV-A, 320-400nm), medium-wave ultraviolet (UV-B, 280-320nm) and short-wave ultraviolet (UV-C, 200-280nm). The effect of UV-B is 1000 times that of UV-A. The mildew in summer is mainly due to the effect of UV-B. After the subcutaneous blood vessels absorb ultraviolet B, they will expand and make the skin red and produce erythema. In severe cases, inflammation will occur. It can also affect the elastic fibers under the skin, causing the skin to lose its elasticity and form rough wrinkles. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M23/12D06M11/44D06M13/00D06M13/238D06M13/352D06M15/01D06M15/03D06M15/15D06M15/333B01J13/02D06M101/06
CPCB01J13/02D06M11/44D06M13/00D06M13/238D06M13/352D06M15/01D06M15/03D06M15/15D06M15/333D06M23/12D06M2101/06D06M2200/25
Inventor 李新根
Owner 李新根
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