Formaldehyde scavenger, as well as preparation method and applications thereof

A formaldehyde scavenger and solvent technology, applied in the field of formaldehyde scavenger and its preparation, can solve the problems of dye fading, brittleness, fur damage, etc., and achieve the effect of reducing surface tension, high reaction efficiency, and good solubility

Inactive Publication Date: 2014-07-16
中华人民共和国衡水出入境检验检疫局
View PDF16 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reagents and reaction conditions used in the above patents will cause damage to fur collagen fibers, so they cannot be used for the treatment of residual formaldehyde in fur clothing.
[0009] Regarding the removal of formaldehyde in textiles, Chinese patent CN200610102146.2 uses a hydrazide compound as a reactant to remove formaldehyde. This type of compound is an azo compound, which is extremely toxic and cannot be used in daily consumer goods such as clothing.
Chinese patent CN200910069730.6 uses hydrogen peroxide to remove formaldehyde under strong alkaline conditions in the fur tanning process. Hydrogen peroxide will damage the keratin protein of the fur, making the fur dull and brittle, and the strong alkali will cause the hair to fall off. These reagents are all It can cause serious damage to the fur. At the same time, strong oxides such as hydrogen peroxide will seriously affect the coloring of the fur, causing the dye to fade and fall off.
At present, there are no suitable relevant patents and literature reports on the treatment of residual formaldehyde in fur products, so it is urgent to invent a safe formaldehyde scavenger suitable for fur to fill the gap in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Add 100kg of distilled water to the reaction kettle and heat it to 70°C, add 5kg of chitosan, 0.3kg of fatty alcohol polyoxyethylene ether AEO9, 0.3kg of polyacrylamide, 0.8kg of tetrabutylammonium bromide and 2kg of formic acid, 0.5 Stir and dissolve kg of ammonium formate, adjust the pH value of the solution to 3.0 with hydrochloric acid, add 6 kg of vegetable tannin after the dissolution is complete, stir and dissolve, and filter with a 100-mesh filter after complete dissolution, fill it into a plastic bucket, and the fur fur is prepared. Clothing formaldehyde scavenger.

[0051] Take 2kg of the above-mentioned formaldehyde scavenger for fur clothing, heat it to 75°C, put it into the washbasin, then soak the mink fur vest in it, rub it moderately, make the clothes fully contact with the formaldehyde scavenger solution, and completely immerse the clothes below the liquid surface. Soak at ℃ for 1 hour, then take out the clothes, rinse them properly with clean water, an...

Embodiment 2

[0054] Add 100kg of distilled water to the reactor and heat it to 75°C, add 6kg of chitosan, 0.5kg of JFC-1, 0.5kg of polyacrylamide, 1 kg of dodecyltrimethylammonium chloride and 0.5kg of glycine, Use hydrochloric acid to adjust the pH value of the solution to 2.8, add 8kg of vegetable tannins, stir and dissolve, and after completely dissolving, filter with a 100-mesh filter, fill it into a plastic bucket, and then prepare the formaldehyde scavenger for fur clothing.

[0055] Take 2kg of the above formaldehyde scavenger for fur clothing and heat it to 70°C, put it into the washbasin, then soak the rex rabbit fur scarf in it, rub it moderately to make the clothes fully contact with the formaldehyde scavenger, completely immerse the clothes under the page, and soak at 65°C After 2 hours, take out the clothes, rinse them properly with clean water, and dry them with hot air.

[0056] The method of "GB / T 19941-2005 Determination of formaldehyde content in leather and fur chemical ...

Embodiment 3

[0058] Add 80kg of distilled water and 20kg of ethanol to the reaction kettle and heat it to 60°C, add 10kg of chitosan, 0.5kg of flat plus O-20, 0.3kg polyacrylamide, 1 kg cetyltrimethylammonium chloride and 0.5kg glycine, adjust the pH value of the solution to 3.2 with hydrochloric acid, add 10kg vegetable tannin, stir to dissolve, after completely dissolved, Filter with a 100-mesh filter screen, fill it into a plastic bucket, and then prepare the formaldehyde scavenger for fur clothing.

[0059] Take a mink fur coat weighing about 350g, spray 250g of scavenger evenly on the leather board and wool fiber, put it in a plastic bag for 24 hours, wipe it with a damp cloth, and dry it with hot air.

[0060] The method of "GB / T 19941-2005 Determination of Formaldehyde Content in Leather and Fur Chemical Tests" was used to detect the formaldehyde content in mink fur coats before and after treatment. The free formaldehyde content in mink fur before treatment was 328mg / kg. The forma...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a formaldehyde scavenger, which comprises main ingredients: a reactant containing chitosan and vegetable tannin, as well as a penetrant, a surfactant, a pH regulator and a solvent. The preparation method of the formaldehyde scavenger comprises the following steps: heating the solvent, firstly adding chitosan, penetrant, surfactant and pH regulator into the solvent, stirring and dissolving, after the dissolving is thorough, then adding vegetable tannin, stirring and dissolving, after the dissolving is thorough, filtering and filling. The formaldehyde scavenger is especially suitable for removal of formaldehyde in fur products. Aiming at the texture and structure characteristics of fur, the selected reagent is concretely designed, and comes from natural animal and plant ingredients, thus being good in safety, incapable of causing harm to a user and clothes, and meeting the related laws and regulations and the quality standard of international and domestic fur clothes. The formaldehyde scavenger can be used for treating fur of fur processing industry, and can also meet the demand on removing formaldehyde of a common consumer on the fur products.

Description

technical field [0001] The invention relates to a formaldehyde scavenger and its preparation method and application. Background technique [0002] Fur clothing has always been a symbol of luxury and wealth. No matter in ancient times or now, they are the darlings of famous ladies and nobles. However, with the development of the times and the improvement of people's living standards, fur clothing has become a daily consumer product for ordinary families, and fur products such as toys and accessories have entered thousands of households. [0003] Tanning is a processing method for animal fur. Specifically, after the raw hide is dried, the cortex is stiff, easy to mildew, has a bad smell, is not easy to preserve, and is not beautiful. Therefore, it must be processed before it can be used, so tanning The purpose of fur is to make the fur cortex soft and fix protein, not absorb moisture and rot, and be durable. Formaldehyde is a tanning agent used in a large amount. Aldehyde t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C14C3/32
CPCY02W30/50
Inventor 魏峰杜峰贾乔宇孙静金沛然高常利姜秀藏
Owner 中华人民共和国衡水出入境检验检疫局
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap