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首页> 外文期刊>Journal of Applied Polymer Science >Production of high quality green textile filaments from carboxymethylated cellulose covalently cross-linked by reactive green 19 dye
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Production of high quality green textile filaments from carboxymethylated cellulose covalently cross-linked by reactive green 19 dye

机译：Production of high quality green textile filaments from carboxymethylated cellulose covalently cross-linked by reactive green 19 dye

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摘要

Huge quantities of wastewaters are produced during dyeing of textile, which is why wastewater treatment plants are required in textile industries in which, in most cases, non-dyed filaments are produced first and dyeing of these filaments is performed at a later stage. Here, carboxymethylated cellulose (CMC) with the -COOH group content of 1.3 mmol/g CMC was covalently crosslinked through reactive green 19 dye in the dope solution (0.09 wt dye with reference to CMC) from which green textile filaments were spun. The incorporation of dye in the dope solution has the advantage of obtaining dyed filaments without using an additional step for dying of the fabricated textile filaments and, moreover, it can be done in such a way that clean, no dye containing wastewater is produced. The filaments also demonstrated an increase in mechanical strength (tenacity similar to 0.96 cN/dtex) and a decrease in water absorbency (water absorbency similar to 0.63 g water/g filament) due to chemical crosslinking of cellulose chains through the dye. Owing to covalent bond formation between the CMC and the dye, excellent color fastness properties were obtained for the fabricated filaments.

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