共查询到17条相似文献,搜索用时 171 毫秒
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通过代用碱TF-221和常规纯碱对活性染料浸染固色的对比实验,测定了碱剂在染色浴固着反应中pH值的动态变化值。通过染色K/S值、各项色牢度、上染速率的对比实验,讨论了代用碱TF-221在活性染料染色中代替纯碱作为固色剂的作用效果,并测定两种工艺染色后织物的强力变化,找到合适的固色工艺。实践证明:代用碱TF-221完全可以代替纯碱用于活性染料染色对竹/棉混纺织物染色时的固色,其固着浴pH值稳定范围符合活性染料的染色特征,可以获得与使用纯碱相当或高于的K/S值和染色牢度,且上色缓慢,起到匀染作用;染色后织物的强力无明显下降。 相似文献
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本文对KE型棉用活性染料用于丝绸染色进行了试验,讨论了固色用碱剂、染色pH值、固色时间、染色助剂用量等因素对染色结果的影响,并确定了最佳染色工艺条件。 相似文献
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HN-型高固色率活性染料红HN-2B、金黄HN-R、深蓝HN-2G,其吸色率在95%以上,固色率在85%左右。以几种不同的染色方法,用HN-型高固色率活性染料对棉纱及棉布进行了染色,染色结果表明,在中温下,该活性染料可以采用低盐染色。当盐的加入量减少为30g/L是标准加入量的1/2),其最适宜的染色条件为:浴比1∶20,染色深度3%,40℃上染,60℃固色,氯化钾20g/L和柠檬酸三钠为10g/L,碱磷酸三钠的加入量为4+10g/L时,其K/S值下降百分数:红HN-2B为10.16;金黄HN-R为5.57;深蓝HN-2G为8.57。 相似文献
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为了了解活性染料对莲纤维的染色性能,采用单因素分析法,在改变温度、浴比、时间、元明粉浓度、纯碱浓度等工艺条件下,分别采用两种不同类型的活性染料对莲纤维进行染色,并测试其上染率、固色率、耐皂洗色牢度和耐汗渍色牢度。结果表明:活性大红X-3B上染莲纤维的最佳染色工艺为染色温度40℃,染液浴比1∶40,染色时间60 min,元明粉质量浓度20 g/L,纯碱质量浓度30 g/L;活性嫩黄X-7G上染莲纤维的最佳染色工艺为染色温度40℃,染液浴比1∶50,染色时间60 min,元明粉质量浓度10 g/L,纯碱质量浓度20 g/L;活性染料耐皂洗色牢度和耐汗渍色牢度都在3级以上。 相似文献
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In this study, the effects of polycarboxylic acid sodium salt on the dyeing of cotton with reactive dyes were evaluated by measuring and comparing the K/S values and dyeing fastnesses of the dyed cotton fabric samples. Results showed that the K/S value and dyeing fastness of cotton fabrics dyed with polycarboxylic acid sodium salt, substituting inorganic salts as exhausting agent were close to that of with sodium chloride when dip‐dyeing process was used. While, in pad‐dry dyeing, the K/S value of cotton fabric samples dyed with polyacid salts as exhausting agent was higher than that of with sodium sulfate, and the dyeing fastnesses of these samples were nearly the same. The dyeing mechanism of cotton fabric with reactive dye, using polycarboxylic acid sodium salt as exhausting agent was analyzed. The dyeing exhausting mechanism of reactive dye seems different when the inorganic salt and polycarboxylic acid sodium salt were used as exhausting agent in the dyeing of cotton fabric with reactive dye. The polycarboxylic acid sodium salt, as weak electrolyte, increased the dye‐uptake of reactive dye on cotton fabric not only by screening negative charges on cotton surface, but also by the effect of salting‐out or hydrophobic combination. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007 相似文献
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An alkaline dyeing of polyester with an alkali‐stable disperse dye, Dianix® Scarlet AD‐RG, was developed using sodium edetate as an alkaline buffering agent. The results obtained indicate the suitability of using sodium edetate for alkaline dyeing of polyester when compared with the control alkaline dyeing using Dianix AD system. Selected mono and bifunctional reactive dyes were used in combination with the alkali‐stable disperse dye for dyeing of polyester/cotton blend. Different dyeing methods for cotton and polyester/cotton blend fabrics using sodium edetate were evaluated in comparison with their respective control alkaline dyeing methods. The results of using sodium edetate in one‐bath two‐stage and two‐bath dyeing of polyester/cotton blend were comparable with that of the control dyeing method. Particularly, no change in the leveling and fastness properties was evaluated for all samples irrespective of the dyeing method. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008 相似文献
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试验研究了载体处理、物理处理和碱处理3种方法对对位芳纶染色性能的影响,分析了不同处理方式对提高对位芳纶染色深度和上染率的效果。结果表明,载体预处理和物理处理这两种方法对提高染色深度和上染率效果明显,碱处理对提高染色效果不显著;采用物理-载体综合处理工艺能显著提高染色效果。 相似文献
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采用活性染料在乙醇-水混合溶剂体系中对棉织物进行染色、固色,探讨了碱预溶胀和一浴两步法两种染色方式及固色碱的种类、浓度、固色温度等对染色性能的影响,并与传统染色工艺比较。结果表明:在乙醇-水染色体系中,随着乙醇比例的增加,上染率增加;使用氢氧化钠和碳酸钠两种碱预溶胀棉织物后,相同浓度下,碳酸钠的固色率高于氢氧化钠,而且氢氧化钠的固色率随着浓度的增加而减小;一浴二步法染色中,采用80%体积分数的乙醇-水体系染色更符合实际生产的需求,氢氧化钠的适宜固色浓度为2g/L,碳酸钠的适宜固色浓度为3g/L;在乙醇水体系染色中,不需加盐,碱使用量为常规染色的1/10时,上染率为97%,固色率比常规染色高出9%~20%。 相似文献
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从技术和经济等方面比较了当液体烧碱价格为纯碱的1.1~1.2倍以下时,采用烧碱部分代替纯碱生产三聚磷酸钠的可行性,提出生产中应采取措施减少隔膜法液碱中杂质对三聚磷酸钠产品质量和生产设备的影响。 相似文献