Preparation method of environment-friendly textiles capable of reducing formaldehyde

Abstract

The invention relates to a preparation method of environment-friendly textiles capable of reducing formaldehyde. The method comprises the following aspects: 1 blocking hydroxymethyl, which is an effective method for reducing formaldehyde emission, and can be divided into the following steps according to different blocking time: (1) blocking in a product production process, and (2) blocking when crosslinking in use; 2 producing a low-formaldehyde product, when hydroxymethyl is etherified with low-level alcohols, the stability of a C-N bond can be improved; and (3) adding polyhydric alcohols to a finishing liquid, so as to reduce the formaldehyde emission to not higher than 400ppm. According to the preparation method, formaldehyde can be effectively reduced, and the environment-friendly textiles are produced.

Description

technical field [0001] The invention relates to a method for preparing environmentally friendly textiles with reduced formaldehyde, belonging to the technical field of textile preparation. Background technique [0002] Formaldehyde is a nasty and irritating chemical that may cause dermatitis and has a potential carcinogenic effect. The occupational safety and health regulations of many countries have made obvious limits on the concentration of formaldehyde in the air. On textiles As early as 1974, the Japanese government made regulations, but it did not attract enough attention in our country for a period of time, perhaps because the awareness of environmental protection has not yet reached a certain height, coupled with developed countries The "green barrier" has not yet been used as a trade weapon. It was not until the 1990s, the rise of environmentally friendly textiles, and the introduction of relevant national laws and regulations, that the awareness of formaldehyde res...

AI Technical Summary

Problems solved by technology

[0002] Formaldehyde is a nasty and irritating chemical that may cause dermatitis and has a potential carcinogenic effect. The occupational safety and health regulations of many countries have made obvious limits on the concentration of formaldehyde in the air. On textiles As early as 1974, the Japanese government made regulations, but it did not attract enough attention in our country for a period of time, perhaps because the awareness of environmental protection has not yet reached a certain height, coupled with developed countries The "green barrier" has not yet been used as a trade weapon. It was not until the 1990s, the rise of environmentally friendly textiles, and the introduction of relevant national laws and regulations, that the awareness of formaldehyde restrictions was raised to the same level as that of banned dyes. Alternatives are possible. The new products of formaldehyde-releasing additives have become the focus of domestic attention