Crease-resistant finishing method for cellulosic fiber fabric

Abstract

The invention relates to a crease-resistant finishing method for cellulosic fiber fabric. A durable crease-resistant finishing agent is adopted, and a double-dipping double-rolling finishing process is adopted for carrying out crease-resistant finishing on the cellulosic fiber fabric; according to parameters of the double-dipping double-rolling finishing process, the mangle expression is about 75% to 80%, pre-drying is carried out for about 1-3 min at the temperature of 80 DEG C to 90 DEG C, and baking is carried out for 2-5 min at the temperature of 120 DEG C to 180 DEG C. The crease-resistant finishing method is characterized in that the durable crease-resistant finishing agent comprises the following components by weight. The crease-resistant finishing agent is nano resin finishing liquid, dimethylol urea resin, excessive hydroxymethyl triazone and hydroxymethyl melamine are compounded as the finishing agent, meanwhile, nanometer oxides with a catalytic effect or the synergistic effect are added, and the finishing agent is prepared and used for crease-resistant finishing processing of bafta. The crease-resistant effect is guaranteed, meanwhile, the problem that the strength and abrasive resistance loss of previous crease-resistant finishing is large is relieved, and the fabric is not yellowed.

Description

technical field [0001] The invention relates to textile dyeing and finishing technology, in particular to a durable anti-wrinkle finishing agent. Background technique [0002] With the progress of human society, the development of science and technology and the improvement of living standards, people's clothing consumption concept and market demand have undergone significant changes. Judging from the domestic and foreign status quo of market fabric development and research, the focus is mainly on product comfort, health, safety protection and environmental protection. [0003] Natural fibers are derived from nature and meet people's needs for comfort, environmental protection and health, and are favored by consumers. Among them, cotton fiber is a natural fiber with a long history and wide application, which is recognized as "green fiber". As a natural fabric product, pure cotton fabric is welcomed by people because of its soft hand feel, good moisture absorption and breath...

AI Technical Summary

Problems solved by technology

However, formaldehyde-free finishing agents are much different from traditional N-methylolamide finishing agents in terms of reactivity, price and source of raw materials, so it is difficult to replace such resins (such as 2D or modified 2D) in terms of comprehensive performance. resin, etc.)

[0005] Experiments have shown that after anti-wrinkle finishing with modified 2D resin finishing liquid, the strength of cotton and other cellulose fiber fabrics will be greatly lost, which seriously affects their wearability.

The study found that there are two main reasons for the decline in strength: one reason is that this type of finishing agent forms intramolecular and intermolecular crosslinks inside cotton and other cellulose fibers, which limits the strength of cellulose in cotton and other cellulose fibers. The mobility of macromolecular chain segments causes stress concentration; another reason is that most of the catalysts used in traditional finishing methods are acidic or latent acidic catalysts, and acidic catalysis will cause the degradation of cellulose macromolecular chains, causing cotton and other cellulose Acid damage to fibers

In order to improve the elastic properties of cotton and other cellulose fiber fabrics, the former cause of the decline in strength caused by wrinkle-resistant finishing is inevitable; As a finishing agent, it is made by adding nano-oxides with catalytic effect or synergistic effect at the same time. It is used for anti-wrinkle finishing of cotton fabrics. While ensuring the anti-wrinkle effect, it can improve the strength and wear resistance of the previous anti-wrinkle finishing. problem, while the fabric has no yellowing phenomenon, so far no patents or literature reports