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A kind of preparation method of black dye

A technology of black dyes and dye monomers, applied in dyeing methods, organic dyes, textiles and papermaking, etc. It can solve the problems of poor blackness and poor hand feeling of black dyes, and achieve good hand feeling, excellent color fastness and dyeing performance , Guarantee the effect of jet blackness

Active Publication Date: 2019-03-19
YANTAI ANOKY FINE CHEM CO LTD +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for preparing a black dye in order to overcome the defects of the prior art such as poor hand feeling or poor blackness of the black dye

Method used

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  • A kind of preparation method of black dye
  • A kind of preparation method of black dye
  • A kind of preparation method of black dye

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Embodiment Construction

[0020] The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples. For the experimental methods that do not specify specific conditions in the following examples, select according to conventional methods and conditions, or according to the product instructions.

[0021] In the embodiment of the present invention,

[0022] Dye monomer A is C.I. reactive black 5 (commercially available conventional product);

[0023] Dye monomer B is Ciba Reactive Brown P-6R;

[0024] Dye monomer C is Ciba Reactive Yellow P-2RN.

[0025] Example Mix the dye monomer A, dye monomer B, dye monomer C and co-solvent, and adopt the commonly used monomer powder blending method in this industry. The powder blending needs to ensure that the lower part of the material returns to the upper part. 3 times, with a total mixing time of 3 hours. For the above mixing methods, samples should be taken from the top, middle and bo...

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Abstract

The invention discloses a preparation method of a black dyestuff. According to the preparation method of the black dyestuff, disclosed by the invention, a dyestuff composition is mixed to prepare the black dyestuff; the dyestuff composition is prepared from the following components: 50%-70% of a dyestuff monomer A shown as a formula (1), 20%-30% of a dyestuff monomer B shown as a formula (2) and 8%-22% of a dyestuff monomer C shown as a formula (3); the percentage is the mass percentage in the dyestuff composition; the total amount of the dyestuff composition is 100%. The dyestuff prepared by the preparation method is a composite black dyestuff and has excellent dyeing fastness and dyeing performance; and the dyestuff guarantees the black degree and also has a good hand feeling, and is particularly applicable to dyeing of cellulose materials. (The formula (1), the formula 2) and the formula (3) are as shown in the description.).

Description

technical field [0001] The invention relates to a preparation method of black dye. Background technique [0002] At present, the reactive black dyes used for viscose fiber printing on the market are mainly dual reactive black dyes compounded with reactive black 5# and reactive orange 133#, and monochloro-s-triazine P-type reactive dyes compounded with black 39 and brown 11. Dyes, the former has excellent blackness but poor hand feeling, and the latter has good hand feeling but poor blackness. [0003] With the improvement of living standards, people's requirements for textile products are getting higher and higher, so that the requirements for the performance of reactive dyes used in textile dyeing are becoming increasingly stringent. Reactive dyes must not only have excellent color fastness and dyeing performance, but also meet environmental protection requirements. Contents of the invention [0004] The present invention provides a method for preparing black dyes in or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22C09B67/36C09B67/24D06P1/38D06P3/66
CPCC09B67/0057C09B67/0072C09B67/0079D06P1/38D06P3/008D06P3/66
Inventor 曹文斌冯全明
Owner YANTAI ANOKY FINE CHEM CO LTD
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