Dissertation
Dissertation > Industrial Technology > Light industry,handicrafts > Textile industry,dyeing and finishing industry > Dyeing and finishing industry > Dyeing > Staining method

Study on Improving Color Fastness to Chlorinated Water of Cotton Fabrics Dyed with Reactive Dyes

Author XuZhengKui
Tutor XuHaiYu
School Donghua University
Course Applied Chemistry
Keywords Cotton fabric Reactive Dyes Dyeing Resistance to chlorinated water fastness Enhance agent
CLC TS193.5
Type Master's thesis
Year 2008
Downloads 20
Quotes 0
Download Dissertation

In recent years, with the popularity of tap water and washing machines, mainly reactive dyeing of cotton textile products washed frequently resistant to chlorinated water fastness proposed new requirements. Especially after China's accession to the WTO, the technical requirements of the export orders increasingly stringent market requirements of the United States, Canada and Europe and other countries and regions Cotton fabric resistant to chlorinated water fastness reached 4 and above, how to improve cotton The reactive dyeing fabric resistant to chlorinated water fastness become the printing and dyeing industry, an important research direction. This shows that both meet the domestic demand of the people of textile consumption upgrade, or to meet the requirements of foreign markets to improve reactive dyeing of cotton fabric resistant to chlorinated water fastness is imperative. This paper discusses the reasons for the resistance to the chlorine hydrolysis of discoloration reactive dyes, impact reactive dyes major factor in resistance to chlorinated water fastness structure of dyes such as azo dyes, their relatively poor resistance to chlorinated water fastness; anthraquinone phthalocyanine structure is better, and the use of existing activity-based and dye the mother, there are some difficulties in the synthesis of the three primary colors with high resistance to chlorinated water fastness reactive dye. Therefore, in addition to the selection of resistance to chlorinated water fastness higher dye, but also on an appropriate auxiliaries Usually dyes to enhance the resistance to chlorinated water fastness, such additives should be highly reactive and may precede active chlorine reaction of the dye with the wash water, to waive or reduce the active chlorine fabric dye violations role play to improve their resistance to chlorinated water fastness. To Argazol, Colvazol, Remazol, Reactex HQ-L four series reactive dyes for dyeing sample test stain resistance to chlorinated water fastness, screening representative dye, and dyeing process optimized. This article also discusses the resistance to chlorinated water fastness improver NF CF, Sandofix the CLC Levogen WRD-T optimization process and compare the treatment effect, screened two better enhance agent resistant to chlorinated water poor color fastness of the dye for processing of such dyes to enhance the resistance to chlorinated water fastness. The article also resistant to chlorinated water fastness improver NF and CF mixed, explore the the best complex ratio between this compound and additives processing to improve resistance to chlorinated water fastness upgrade agent NF processing the wettability of the sample, and to ensure processing of sample resistance to chlorinated water fastness level to achieve the requirements of the domestic and international markets. Finally, also determined by measuring the reactive dye S, E, F, R value study the compatibility of the reactive dye of the excellent resistance to chlorinated water fastness. The experimental results show that; the series of Colvazol poor resistance to chlorinated water fastness. Part of the reactive dye, the use of resistance to chlorinated water fastness improver NF SANDOFIX the CLC and complex additives for processing, without reducing the sample with other colorfastness at the same time have greatly improved resistance to chlorinated water fastness, and generally increase 1-2; identified by screening Argazol RedBF-RR, Colvazol Yellow 3RS and Colvazol Navy Blue BF three reactive dyes have excellent resistance to chlorinated water fastness, they are S, E, F, and R values ??are similar, can be used as mixed colors with three primary colors, three curve of the dye rate and the fixing rate curve was measured and mixed colors test results also demonstrate their as mixed colors primaries is feasible. Trichromatic dyes and additives resistance to chlorinated water fastness improver mixed choice of mixed colors, can solve the problem of insufficient resistance to chlorinated water fastness of cotton fabric with reactive dyes, can be further applied according to the actual needs production.

Related Dissertations
More Dissertations