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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. All polyester, polyester / cotton, polyester spandex and superfine fiber, etc., and obtain good dyeing effect; second, the existing basic disperse dyes are limited in the dyeing process, the pretreatment process and the dyeing process need to be carried out separately, and the energy consumption and environmental pollution; third, the adaptability of the existing basic disperse dyes and other reactive dyes has great limitations

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

Embodiment 1

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

Embodiment 2

[0056] Component A containing 50 grams of formula (I-1), 50 grams of formula (I-2), and 100 grams of multifunctional leveling agent SE are mixed with 750 grams of water, ground and dispersed, and dried to obtain the finished product. The dye can provide fabric uniformity and good fastness properties of orange.

Embodiment 3～36

[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, and component IV and auxiliary agents in Table 1 are used to make a slurry after adding water and blending, grinding Disperse, dry, and make a finished product, thereby providing the desired uniform and fast color tone to the fabric.

[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 polyester dyeing process:

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

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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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