纺织学报 ›› 2016, Vol. 37 ›› Issue (06): 91-94.

• 染整与化学品 • 上一篇    下一篇

纱线线密度与染色槽数对靛蓝上染率的影响

  

  • 收稿日期:2015-04-14 修回日期:2016-03-16 出版日期:2016-06-15 发布日期:2016-06-17

Effect of yarn density and dyeing vat on the dye uptake of indigo

  • Received:2015-04-14 Revised:2016-03-16 Online:2016-06-15 Published:2016-06-17

摘要:

为了掌握靛蓝染料的染色特性,提高打版成功率,同时更加精确的计算染色成本,在绳染机上进行了两组不同的实验。分别为相同染槽深度时不同纱线线密度对靛蓝上染率的影响和相同线密度时不同染槽深度对靛蓝上染率的影响。在30oC对纱线进行染色,浸染时间为26s,氧化时间120s,压力7.0MPa。对烘干后染色纱样的上染率进行测试和分析。结果表明,在底水各组分浓度测试值为靛蓝2.0g/L、烧碱3.0g/L,保险粉1.32g/L,及pH值11.88,氧化还原电位-785mV,电导率64.2μS/cm时,靛蓝上染率随着纱线线密度的增加而降低,相同的染槽深度下,上染率与纱线线密度的平方根成反比;靛蓝上染率随着染色槽数的增加而增加,且增长率逐渐减小。

Abstract:

In order to grasp the dyeing properties of the indigo, promote success rate of the production, and calculate the cost of the dyeing process, two groups of experiment were carried out in the rope dyeing machine, effect of yarn density on the dye uptake of indigo and effect of dyeing VAT on the dye uptake of indigo. The yarns were impregnated with dyeing solutions for 26s at 30oC, and oxidized for 75s,the pressure was 7.0 MPa. The dye-uptake of the drying sample yarns were tested and analyzed. The results show that,when the dosage is: indigo 2.0g/L, caustic soda 3.0g/L, sodium hyposulfite 1.32g/L, pH 11.88,oxidation-reduction potential -785mV, electrical conductivity 64.2μS/cm, the dye-uptake reduced with the increasing of the yarn density. Under the same depth, the dye uptake is inversely proportional to the square root of the yarn density .The dye-uptake increased with the increasing of the dyeing VAT, but the growth rate decreased.

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