Green direct dyes

N. Sekar; Rupesh Arun Khare

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Green direct dyes

机译：绿色直接染料

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Green, coloured surfaces have absorption maxima at two different regions; one at 400-5450nm and the other at 580-700nm. A simple inspection does not reveal whether a green colour originates from one colorant with two absorption maxima or a mixture of blue and yellow colorants. Early direct dyes for cotton were discovered by Hoffmann and Daimler of the Casella company in 1891. One of these, Diamine Green B is made by coupling Hacid first in acid solution with diazotised 4-nitroaniline, then in alkaline solution with a molecular equivalent of tetrazotised benzidine, followed by a final coupling with phenol. The structure of the dye is (1).

机译：绿色的彩色表面在两个不同的区域具有最大吸收率。一个在400-5450nm，另一个在580-700nm。简单的检查并不能揭示绿色是来自具有两个吸收最大值的一种着色剂还是蓝色和黄色着色剂的混合物。早期的棉花直接染料是由Casella公司的Hoffmann和Daimler于1891年发现的。其中之一，Diamine Green B是通过将Hacid首先在酸性溶液中与重氮化的4-硝基苯胺偶联，然后在碱性溶液中与分子等价的四唑啉酸酯偶联而制成的。联苯胺，最后与苯酚偶联。染料的结构为（1）。

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来源
《Colourage》 |2005年第8期|p.107-108|共2页
作者
N. Sekar; Rupesh Arun Khare;
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作者单位

Dyes Division UICT, Matunga Mumbai - 400 019;

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正文语种 eng
中图分类纺织工业、染整工业;
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1. The potential for human exposure, direct and indirect, to the suspected carcinogenic triphenylmethane dye Brilliant Green from green paper towels. [J] . Oplatowska M, Donnelly RF, Majithiya RJ, Food and Chemical Toxicology: An International Journal Published for the British Industrial Biological Research . 2011,第8期

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2. Calcium-iron-D-gluconate complexes for the indirect cathodic reduction of indigo in denim dyeing: A greener alternative to non-regenerable chemicals [J] . Abdelileh Maha, Manian Avinash P., Rhomberg Dorian, Journal of Cleaner Production . 2020,第Sepa1期

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3. Green S as a prototype for an environmentally-degradable dye: the concept of a 'green dye' in future green chemistry [J] . Alexei U.Moozyckine, D.Martin Davies Green chemistry . 2002,第5期

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4. Temperature influence in Direct Green 26 dye degradation rate with non-thermal plasma [C] . Oana Beniugă, Iuliana-Delicia Dîrlau, Dragoş Astanei, International Conference and Exposition on Electrical and Power Engineering . 2018

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6. Comparison of the indocyanine green dye method versus the combined method of indigo carmine blue dye with indocyanine green fluorescence imaging for sentinel lymph node biopsy in breast conservative therapy for stage ≤IIA breast cancer [O] . Nobuyuki Takemoto, Ai Koyanagi, Masanori Yasuda, 2018

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Green direct dyes

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