Dyeing and finishing processing technology of four-side stretch fabric based on antimony-free polyester

Abstract

The invention discloses a dyeing and finishing technology of a four-side stretch fabric based on antimony-free polyester. The dyeing and finishing process comprises a pre-treatment process, a dyeing process and a post-treatment process which are carried out in sequence, the pretreatment process comprises a tension-free preshrinking process and a pre-shaping process; a dyeing agent adopted in the dyeing process comprises a dyeing auxiliary agent and a dye; the dyeing auxiliary agent is prepared from a dyeing optimizing agent TF-256, a dyeing synergist TF-257 and a spandex degreaser TF-109A; the post-treatment process comprises a high-temperature drying process, a soaping process and a low-temperature setting process which are carried out in sequence, wherein in the low-temperature setting process, the soaped fabric is subjected to setting treatment by adopting a moisture-absorbing and sweat-releasing finishing agent; and soaping assistants adopted in the soaping process comprise Yakesai (a brand name of fiber) RC and an acidity slipping agent VS. According to the process, the processed fabric can be ensured to have better elasticity and rebound resilience, various technical indexes such as color fastness of the fabric can meet relatively high requirements, and the fabric can be endowed with relatively high moisture absorption and sweat releasing functions.

Description

Technical field [0001] The present invention belongs to the field of textile printing and dyeing techniques, and in particular, the present invention relates to a dyeing and finishing process based on four-sided bombing noodles of non-chalk polyester. Background technique [0002] At present, most of the polyester production enterprises at home and abroad still use the bismuth catalyst. In the bismuth-based catalyst, more use of trioxide, bismuth and ethylene glycol, which have high market share and excellent performance. The antimony catalyst can greatly promote the polycondensation reaction in the polyester polycondensation reaction rather than promoting the thermal degradation reaction, which is a good catalyst in the polycondensation process. However, antimony belongs to heavy metals, harm to the human body, and with toxic arsenic with arsenic will cause damage to the liver. Since the polyester production involved in the antimony catalyst is allocate catalytic reactions, the ...

AI Technical Summary

Problems solved by technology

[0007] (2) Spandex fiber has the characteristics of easy shrinkage when heated, and its shrinkage rate in the dyeing and finishing process is not easy to control;

[0008] (3) During dyeing, the selected dyes and dyeing auxiliaries have poor compatibility, which can easily lead to differences in hue; and spandex fibers tend to absorb a large amount of dyes when dyed, but the valence bond stress of dyes and spandex fibers is small, and in the subsequent consumption process Easy to fall off, resulting in poor color fastness

[0009] (4) When the fabric is functionally finished, the color fastness of the fabric is easily affected and decreased

Images