Effect of sulphonation level upon the fixation and build up properties of reactive dyes
Effect of sulphonation level upon the fixation and build up properties of reactive dyes
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DOI：
10.1111/j.1478-4408.2006.00020.x
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发表时间：
2006-06
影响因子：
1.8
通讯作者：
F. Biolchi;A. Kawabata;John A Taylor
中科院分区：
文献类型：
--
作者：
F. Biolchi;A. Kawabata;John A Taylor
制备了许多密切相关的染料，每种染料都具有单一的β-磺乙基磺酰基反应基团和数量可变的磺酸盐残基，并对它们的染色性能进行了评价。随着染料磺化程度的增加，固色率和在棉上的上染率都会降低。这些观察结果归因于染料与纤维之间的静电斥力增加，因为染料的阴离子性或磺化程度增加了。为了支持这一点，具有一个活性基团的单磺化染料的构建与市场领先的双活性二磺化染料的构建一样好。
A number of closely related dyes, each possessing a single β-sulphatoethyl sulphonyl reactive group and a variable number of sulphonate residues, were prepared and their dyeing behaviour evaluated. As the level of sulphonation of the dyes increased, both fixation efficiency and build up on cotton were reduced. These observations were attributed to increased electrostatic repulsion, between dye and fibre, as the anionicity, or level of sulphonation, of the dyes was increased. In support of this, the build up of a monosulphonated dye with one reactive group, was as good as that of a market leading bireactive disulphonated dye.