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Preparation method of dyestuff

A technology of dyes and dye monomers, which is applied in the direction of organic dyes, can solve the problems of turquoise dye printing improvement and poor fastness performance, and achieve excellent color fastness and dyeing performance, excellent color fastness, deep color effect

Active Publication Date: 2017-10-20
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 kind of preparation method of dyestuff in order to overcome the defects such as poor printing lifting performance and fastness performance of emerald blue dye in the prior art

Method used

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  • Preparation method of dyestuff
  • Preparation method of dyestuff
  • Preparation method of dyestuff

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8 and comparative example 1～9

[0028] Dye monomer A (turquoise blue 14) is all Caragana turquoise blue K-GL; dye monomer B (turquoise blue 21) is all Caragana turquoise blue KN-G. Dye monomer A and dye monomer B can be prepared by methods well known in the art, and are known compounds in the prior art.

[0029] Examples 1-8 and Comparative Examples 1-9 all use monomer dry powder blending, using a common conical blender in the dye industry, blending for 3 hours, and feeding once per hour, a total of 3 times, fully blended evenly, The difference between the upper and lower sampling intensity is not more than 2% to meet the standard.

[0030] Table 1

[0031]

[0032]

[0033] The emerald blue reactive dye prepared in the above examples was tested by a standard reactive dye printing method (GB / T2388-2003 Reactive Dye Printing Shade and Intensity Determination), to obtain its corresponding performance data, see Table 2.

[0034] Table 2 (printing depth 30g / kg, pure cotton plain cloth)

[0035]

[00...

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Abstract

The invention discloses a preparation method of a dyestuff. The preparation method of the dyestuff, provided by the invention, comprises the step of mixing a dyestuff composition prepared from a dyestuff monomer A shown as a formula (1) and a dyestuff monomer B shown as a formula (2), wherein (a+b) is equal to 3.5 and (X+Y+Z) is equal to 3.5 to 4.0; the weight part ratio of the dyestuff monomer A to the dyestuff monomer B ranges from (1.1 to 1) to (8.7 to 1). The dyestuff prepared by the preparation method has a relatively high lifting property, good color fastness and a high cost performance. (The formula (1) and the formula (2) are shown in the description.).

Description

technical field [0001] The invention relates to a preparation method of a dye. Background technique [0002] 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. [0003] At present, the dye monomers of turquoise blue species in the market are usually used for printing cellulose fibers, and the lifting performance is not enough, and the dosage is often above 30g / kg. With the increase of the dye concentration, the depth of the printed cloth surface cannot be increased, reaching Saturated depth, so some darker turquoise blues cannot be achieved; or it is mainly used for normal dyeing, and the depth is excellent when used for printing, but the shade is darker tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/24
CPCC09B67/004C09B67/0072
Inventor 蔡连杰曹文斌
Owner YANTAI ANOKY FINE CHEM CO LTD