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Dongying Rich Chemical Co.,Ltd

Solution To Higher Fixation Rate For Reactive Dyes The World Problem

Comprehensive performance of reactive dyes in 2014, its output accounted for 27.8% of Chinese dyestuff production. But its affinity for fibre low fixed rates are often lower than 80%. Although individual dye fixation rates of up to 90%, but these dyes or complex, or production and application are toxic to the environment. Since 1956, reactive since the advent of improve the dyeing properties of reactive dye is dye States and internationally renowned companies to address the problem.

Funded by the national science and technology support program and other projects, they cracked the reactive dyes with high fixation yield problems, created 5/14 high fixation yield new reactive dyes. Which, sparse water sucking electric sex benzene and meters h ketone yellow reactive dyes ADH-Y2, and miscellaneous ring sulfa Fong amine class red single I nitrogen activity dye ADH-R4 in cotton Shang of highest solid color rate respectively for 87.6% and 83.7%; created of high affinity mixed double activity base double I nitrogen mission activity dye, and double sent color body activity dye, and I nitrogen anthracene Quinone dye in cotton Shang of eventually solid color rate are over 90%, macromolecules make joint dye in cotton Shang solid color rate over 98%. The results won 5 national invention patents, and illustrates a two-H-acid monoazo mechanism of Anthraquinone dye hair color molecules cross-linked Crosslinking dyeing theory of dyes. Development of reactive dyes through the dye by the State quality supervision and inspection center of safety assessment, shangyu, produced by EPA's environmental assessment.

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