Sterilizing shape-memory-fabric finishing agent and finishing method

Abstract

This invention discloses a sterilization shape memory fabric finishing agent and the processing method. It is composed of the following component and the weight percentage: the river character shape memory polyurethane ranging from 2-20%, the low formaldehyde which can prevent burning the reorganization resin 3-30%, the traditional Chinese medicine extraction used to sterilize 1-10%, the catalyst 1-5%, the remainder is the water. Various components should proportionate duplicate match then. This invention's sterilization river character shape memory fabric finishing agent formaldehyde content is low, the force slightly loses. Besides, it has the shape memory property, the high crease-resist performance, and the antibacterial health care function. So it may substitute for the traditional which can prevent burning the reorganization resin finishing fabric, and the application prospect is broad.

Description

technical field [0001] The invention relates to the technical field of anti-wrinkle fabrics, in particular to a sterilizing shape-memory fabric finishing agent and a finishing method thereof. Background technique [0002] Fabric anti-wrinkle finishing is an essential procedure in fabric finishing, and occupies a very important position in fabric finishing. The key to fabric anti-wrinkle finishing is fabric anti-wrinkle finishing agent. Traditional anti-wrinkle finishing agents mainly include two types of finishing agents containing formaldehyde and formaldehyde-free: [0003] 1. Anti-wrinkle finishing of fabrics containing formaldehyde finishing agents [0004] The anti-wrinkle finishing of fabrics with formaldehyde-containing finishing agents was studied earlier, the most important of which is dimethylol dihydroxyethylene urea, commonly known as 2D resin. The resin has a very good durable anti-wrinkle effect on fabrics. However, it causes a serious loss of fabric strengt...

AI Technical Summary

Problems solved by technology

In fact, due to the strong acidity of polycarboxylic acid, the baking temperature required in the finishing process is high, resulting in a significant decrease in the strength of the finished fabric; at the same time, for colored fabrics, due to the action of acid and high temperature, many Dyes change color

The existence of the above two problems has seriously affected the industrial application of this type of finishing agent

[0008] Among all the fabric anti-wrinkle finishing agents at present, the anti-wrinkle finishing effect is relatively good, and the most widely used at home and abroad is the traditional formaldehyde-containing fabric finishing agent 2D resin (dimethylol dihydroxyethylene urea) and its modification. Etherified 2D resin, but the strength loss of the finished fabric is large, especially the release of formaldehyde is very high, which is very harmful to the human body

However, other existing anti-wrinkle finishing agents for fabrics have disadvantages in varying degrees, such as unsatisfactory anti-wrinkle effect, large loss of fabric strength, bad hand feeling, large environmental pollution, single performance, and easy yellowing.

[0009] Shape-memory polyurethane has been used as an anti-wrinkle finishing agent in relevant patent literature (Chinese invention patent 200410002552.2, 200410047647.6), but the invented water-based shape-memory polyurethane is a blocked polyurethane, and its shape-memory effect must rely on isocyanate and fiber The cross-linking of prime hydroxyl groups, in practical applications, due to the unstable blocking and unblocking effects of polyurethane isocyanate groups, the effect of shape memory finishing is not ideal. Another major defect of it is that due to the increase of blocking Processes such as unsealing and unsealing have single performance, which leads to high cost of the produced shape memory polyurethane and brings new environmental pollution, which is difficult to be accepted by the market

[0010] Due to the improvement of people's living standards, wearing fabrics is not only a function of clothing, but also requires functions such as fashion, health care, medical treatment, and anti-bacteria. Products such as far-infrared underwear and nano-titanium dioxide fiber derivatives have also appeared on the market. , but these products still have defects such as unsustainable performance, poor curative effect, cumbersome process, nano-agglomeration, and chemical corrosion themselves (Chinese invention patents 95191064.7, 03139798.0, 03109764.2, 200510038593.1)