染整技术2025，Vol.47Issue(12)：21-23,27,4.
分子筛分-键合能垒双维精控体系在涤纶分散染料染色后处理中的应用
Application of molecular sieve and bonding energy barrier two-dimensional fine control system in the post-treatment of disperse dyes dyeing on polyester
张坚1
作者信息
- 1. 广东康派环创科技有限公司新产品研发部,广东 佛山 528500
- 折叠
摘要
Abstract
Aiming at the industry pain points of small molecular impurities(less than 300 Da)difficult to remove and low color fastness to heat and pressure after dyeing with polyester high-temperature disperse dyes,a two-dimensional fine control post-treatment system of molecular sieving and bonding energy barrier was constructed.At 90℃and alkaline condition,the dynamic swelling of polyester fiber was regulated to form 1.8-2.2 nm molecular sieve channel.Combined with alkali reduction to destroy the chromogenic group of impurities,the directional removal of low energy barrier impuri-ties(Eb<15 kJ/mol)and the locking of high energy barrier dyes(Eb>25 kJ/mol)were realized synchronously based on the bonding energy barrier equation.The results showed that after dyeing 75D/72F polyester plain cloth with high temperature disperse dyes,the color fastness to heat press reached grade 4.5(ΔE≤0.3),and the residual rate of impurities less than 300 Da was reduced to 0.8%.Compared with the traditional reduction cleaning process,the COD reduction of wastewater is 85%.This technology provides a new path for"precise purification"of dyeing post-treatment,and promotes the transfor-mation of textile dyeing to green and quantitative.关键词
涤纶染色/分散染料/后处理/分子筛分/键合能垒/耐热压色牢度Key words
polyester dyeing/disperse dyes/post-treatment/molecular sieving/bonding energy barrier/color fast-ness to heat press分类
轻工纺织引用本文复制引用
张坚..分子筛分-键合能垒双维精控体系在涤纶分散染料染色后处理中的应用[J].染整技术,2025,47(12):21-23,27,4.
