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反应型水性聚氨酯固色剂的合成及性能

Synthesis and properties of reactive water-borne polyurethane fixing agent

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以二羟甲基丙酸(DMPA)和N-甲基二乙醇胺(MDEA)为扩链剂,通过封闭异氰酸酯端基(-NC0),合成了反应型水性聚氨酯固色剂.优化的合成工艺为:R值(-NCO与-OH物质的量之比值)为2.2,聚醚多元醇为PEG1000和PPG1000,比例为1:1,MDEA用量为预聚体质量的7.5%,DMPA用量为预聚体质量的3.40%,中和度为90%,端封-NCO预留量为30%;优化的固色工艺为:二浸二轧(整理剂80 g/L,轧余率75%)→预烘(47℃×3 min)→焙烘(150℃×3 min).试验结果表明,反应型水性聚氨酯固色剂应用于活性染料染色棉织物,可显著提高织物的色牢度.
Taking 2,2-dimethylol propionic acid (DMPA) and N-methyldiethanolamine (MDEA) as chain extenders, reactive wa-ter-borne polyurethane fixing agent was synthesized by terminating isocyanate (-NCO) group. Optimum synthesis process was R value 2.2, PEG1000 to PPG1000 = 1 : 1, MDEA 7.5%, DMPA 3.4%, neutralization degree 90%, end terminated -NCO group 30%. Optimum fixing process was double-dip-double-nip with fixing agent 80 g/L and pick-up 75%, drying at 47 ℃ for 3 minutes,and curing at 150 ℃ for 3 minutes. Finished cotton reactive dyeings had obvious improvement in color fastness.

dyeingreactive dyesfixing agentpolyurethanecolor fastnesscotton fabric

李庆、樊增禄、豆春霞

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西安工程大学,陕西,西安,710048

染色 活性染料 固色剂 聚氨酯 染色牢度 棉织物

2009

印染
上海市纺织科学研究院 全国印染科技信息中心

印染

CSTPCDCSCD北大核心
影响因子：0.705
ISSN：1000-4017
年,卷(期)：2009.35(24)
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