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Preparation method of metal complex dye and weak acid dye compound

A technology of metal complex dyes and weak acid dyes, which is applied in dyeing methods, organic dyes, textiles and papermaking, etc. It can solve the problems of affecting the color fastness of dyes, the decline of dyeing exhaustion rate, and the increase of environmental protection pressure to achieve excellent dyeing Performance and various fastnesses, improved coloring performance, and reduced processing difficulty

Active Publication Date: 2020-07-17
JINHUA SHUANGHONG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding a leveling agent will lead to a decrease in the exhaustion rate to varying degrees (the exhaustion rate usually decreases by 2 to 10%), and will affect the color fastness of the dye to varying degrees. At the same time, the residual dye in the dye bath will increase. The leveling agent used is also left in the dyeing residue, and the pressure on environmental protection becomes greater

Method used

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  • Preparation method of metal complex dye and weak acid dye compound
  • Preparation method of metal complex dye and weak acid dye compound
  • Preparation method of metal complex dye and weak acid dye compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1. Weigh 255g of C.I. Acid Yellow 59, 37.5g of C.I. Acid Yellow 117, 6g of sodium alginate, and 3g of sodium benzoate, and mix the above ingredients evenly to obtain 301.5g of weak acid dye compound.

[0028] C.I. Acid Yellow 59 has a staining strength of 300% (compared to standard dyes).

[0029] Embodiment 2~Example 10, the formula is described in the following table 1, and the preparation method is equal to the embodiment 1.

[0030] The formula (percentage by weight of each component) of table 1, embodiment 1~embodiment 10

[0031]

[0032] Experiment 1. The dye compound obtained in the above-mentioned Examples 1 to 10 was used for dyeing polyamide fibers within 7 days after production, and dyed according to GB / 2374-2017 "General Conditions for Dye Dyeing Determination", According to the provisions of GB / T5713-1997 "Textile Color Fastness Tests for Color Fastness to Water" and GB / T 3921-2008 "Textile Color Fastness Tests for Soaping Fastness", the results ...

Embodiment 11

[0045] Example 11. Weigh 258g of C.I. Acid Red 315, 34.5g of C.I. Acid Red 249, 6g of Sodium Alginate, and 0.5g of Benzoic Acid, and mix them evenly to obtain 299.0g of metal complex dye and acid dye compound.

[0046] C.I. Acid Red 315 has a staining strength of 300% (compared to standard dyes).

[0047] Example 12-Example 21, the formulations are described in Table 6 below, and the preparation method is the same as that of Example 11.

[0048] Table 6, the formula (percentage by weight of each component) of embodiment 2~embodiment 21

[0049]

[0050]

[0051] Experiment 3. The dye compound obtained in the above-mentioned Examples 11 to 21 was used for dyeing polyamide fibers within 7 days after production, and dyed according to GB / 2374-2017 "General Conditions for Dye Dyeing Determination" According to the provisions of GB / T5713-1997 "Textile Color Fastness Tests for Color Fastness to Water" and GB / T 3921-2008 "Textile Color Fastness Tests for Soaping Fastness", the ...

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Abstract

The invention discloses a compound of a metal complex dye and a weak acid dye. The compound comprises the following ingredients by weight: 5%-92% of metal complex dye, 4.9%-90% of weak acid dye, 1.6%-90% of an auxiliary from a natural product, and 0-5% of a stabilizer. The degree of exhaustion of the dyes (the metal complex dye and the weak acid dye) in the compound is higher than 99% due to the adoption of the compound, meanwhile, the color fastness to water / fastness to soaping of the dyed fiber is improved at different degrees, and the environment protection performance of the dye product isimproved.

Description

technical field [0001] The invention particularly relates to a preparation method of a metal complex dye and a weak acid dye compound, which belongs to the technical field of chemical industry. Background technique [0002] Polyamide fibers, wool and silk are usually dyed with weak acid dyes in a weak acid dyeing bath with a pH of 4 to 6.5. After dyeing, an appropriate amount of color fixing agent is often added to fix the color to improve the color fastness. When dyeing polyamide fibers with weak acid dyes, due to the high affinity of the dye molecules to the fibers, the dyeing speed is fast during dyeing, resulting in poor levelness, and the exhaustion rate is usually 80-90%, so it is usually necessary to add a leveling agent to reduce the dyeing rate , improve level dyeing. [0003] At present, the leveling agent usually used as acid dye is a chemically synthesized macromolecular compound. This type of synthetic leveling agent can be divided into two categories: 1. Anion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22C09B67/24D06P1/00D06P1/39D06P1/48D06P1/46D06P1/653D06P3/24
CPCC09B67/0033C09B67/0041C09B67/0051C09B67/0055C09B67/0072D06P1/00D06P1/39D06P1/46D06P1/48D06P1/6536D06P3/241D06P3/245
Inventor 徐建成肖刚
Owner JINHUA SHUANGHONG CHEM CO LTD