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Dye preparation method

A technology of dyes and dye monomers, used in dyeing methods, organic dyes, textiles and papermaking, etc., can solve the problem that brilliant blue dyes cannot be whitened, and achieve the effect of increasing the added value of products and excellent extractability.

Active Publication Date: 2017-11-07
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] In order to overcome the defect that the brilliant blue dye cannot be whitened in the prior art, the present invention provides a preparation method of the dye

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4 and comparative example 1～9

[0026] Reactive Brilliant Blue No. 19, Dye Monomer A, Dye Monomer B, Reactive Blue 203, and Reactive Red 21 can be prepared by methods well known in the art, and are known compounds in the prior art.

[0027] Examples 1-4 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 returning the material once per hour, a total of 3 times, fully blending evenly, The difference between the upper and lower sampling intensity is not more than 2% to meet the standard.

[0028] Table 1

[0029]

[0030] The reactive dye that above-mentioned embodiment is made adopts standard reactive dyestuff to carry out dyeing test (pure cotton knitted fabric) (GB / T 2387-2006 reactive dye dyeing shade and the mensuration of intensity), obtain its corresponding performance data, see table 2.

[0031] Table 2 (exhaust dyeing, liquor ratio 1:10, 60 degree dyeing, O.W.F: 3%)

[0032]

[0033] The reactive dye e...

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Abstract

The invention discloses a dye preparation method. The dye preparation method disclosed by the invention comprises the step of mixing a dye composition containing a dye monomer A shown by a formula (1) and a dye monomer B shown by a formula (2), wherein according to parts by weight, the dye monomer A to the dye monomer B is 2.5 to (1 to 5.5 to 1). The hue of prepared dye is close to No. 19 reactive blue, can be white discharged by a general discharge printing technology, has excellent dischargeable performance, can substitute No.19 brilliant blue which cannot be discharged, can be applied to the discharge printing technology to produce top-grade printed products and improves additional value of products. (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] Discharge printing, also known as carving printing, is the process of printing discharge dyeing paste on colored fabrics to eliminate local colors, and at the same time, another dye can be added to the discharge dyeing paste to form colored ground color flowers. [0003] This process uses the strong reducibility of the white powder to destroy the background color. It is generally divided into two types: neutral and alkaline discharge. The difference is whether to add alkali agent. The choice of alkali agent can be caustic soda (30%, 36°Bé (Baume)) / Soda Ash / Potassium Carbonate. In terms of dye selection, the activity of vinyl sulfone type is generally not alkali resistant, and it can be whitened under neutral or alkaline reducing conditions. Most of the dyes of monochloro-s-triazine or dichloro-s-triazine can be used in alkaline It is more difficult to pull out the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/42D06P1/384D06P3/66
CPCC09B67/0054C09B67/006D06P1/384D06P3/666
Inventor 蔡连杰曹文斌
Owner YANTAI ANOKY FINE CHEM CO LTD