Disperse dye composition and application thereof

A technology of disperse dyes and compositions, applied in the directions of organic dyes, dyeing methods, textiles and papermaking, etc., can solve the problems of large energy consumption and environmental pollution, soaping and reduction cleaning are carried out under alkaline conditions, etc., to save energy and water consumption, outstanding color fastness performance, and the effect of reducing production costs

Active Publication Date: 2011-04-27
浙江创元染料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, polyester fibers are mostly dyed with disperse dyes under weak acidic conditions. The disadvantages of this dyeing method are: the refining of polyester fibers before dyeing, alkali reduction, and soaping and drying after dyeing. Reduction cleaning is carried out under alkaline conditions
[0004] However, at present, there are very few disperse dyes that can really be applied to dyeing under alkaline conditions

Method used

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  • Disperse dye composition and application thereof
  • Disperse dye composition and application thereof
  • Disperse dye composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0053] Example 1:

[0054] Combine 100 grams of component I of formula (I-1) and 200 grams of multifunctional leveling agent SE, add 750 grams of water to mix, grind, disperse, and dry to obtain the finished product. The dye can provide uniform and fastness properties to the fabric. Good orange.

Example Embodiment

[0055] Example 2:

[0056] Mix 50 grams of formula (I-1), 50 grams of component A of formula (I-2), 100 grams of multifunctional leveling agent SE, add 750 grams of water, mix, grind, disperse, and dry to obtain the finished product. The dye can provide an orange color with uniform fabric and good fastness properties.

Example

[0057] Examples 3 to 36:

[0058] According to the method described in Example 1, the difference is that the structure and weight ratio of component I, component II, component III, component IV and additives in Table 1 are used and mixed with water to form a slurry. Disperse, dry, and make finished products, so as to provide fabrics with uniform and good fastness tones.

[0059] Table 1: Composition and corresponding hue of different disperse dye compositions

[0060]

[0061]

[0062] 2. Application of the disperse dye composition of the present invention

[0063] 2.1. Applied to the dyeing process of all polyester:

[0064] Dyeing process route such as figure 1 Shown: Measure the standard water level, put 100 grams of polyester fabric at room temperature, then add 0.5-2g / L of the special auxiliary agent of the present invention, then adjust pH=7-11, run for more than 3 minutes, and then add the present invention 2g / L of the disperse dye prepared in Example 1, directly heated to 80°C...

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Abstract

The invention discloses a disperse dye composition and application thereof and particularly relates to a disperse dye which has good dyeing effect under an alkali condition and application thereof. The dye composition comprises a dye and an aid in a mass ratio of 1:1-1:2, wherein the dye is selected from any one or more of a dye I, a dye II, a dye III and a dye IV. The disperse dye composition can be widely applied to a full-polyester dyeing process, a synchronous polyester/cotton scouring, bleaching, dispersing and dyeing process, a polyester/cotton dispersing high-temperature active dye one-bath process, a polyester/cotton dispersing constant-temperature active dye one-bath two-step process and the like and has good dyeing effect. The disperse dye composition can realize synchronous performance of a pretreatment process and a dyeing process, can be used together with other active dyes, has wide application and contributes to shortening process time and lowering production cost.

Description

Technical field: [0001] The invention relates to a disperse dye composition, in particular to a disperse dye suitable for good dyeing effect under alkaline conditions and its application. Background technique: [0002] At present, polyester fibers are mostly dyed with disperse dyes under weak acidic conditions. The defects of this dyeing method are: the refining of polyester fibers before dyeing, alkali reduction, and soaping and drying after dyeing. Reduction cleaning is carried out under alkaline conditions. Therefore, when dyeing in an acid bath, it is easy to cause uneven dyeing, and the pH value of the dye bath fluctuates widely, which will lead to changes in shade and poor dyeing reproducibility. [0003] Some manufacturers also use disperse dyes to dye under alkaline conditions. Dyeing with disperse dyes under alkaline conditions can effectively remove the size and oil on polyester fabrics, and overcome other decomposition products such as polyester oligomers that ar...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B67/38D06P3/54D06P3/85D06P3/872D06P1/16D06P1/18D06P1/20
Inventor 李文珺
Owner 浙江创元染料有限公司
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