Liquid disperse dye for high-temperature dip dyeing and preparation method thereof

A technology of liquid disperse dyes and disperse dyes, applied in the field of printing and dyeing, which can solve the problems that limit the wide application of liquid disperse dyes, and achieve the effects of preventing collision agglomeration, strong dispersibility, and uniform particle size distribution

Pending Publication Date: 2021-12-24
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This contradiction limits the wide

Method used

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  • Liquid disperse dye for high-temperature dip dyeing and preparation method thereof

Examples

Experimental program
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Effect test

Example Embodiment

[0021] Example 1 Preparation of Liquid Dispersion Dyes for High Temperature Dures:

[0022] a) Take 9 g of a compound dispersant, 45 g of dispersion dye cakes and 246 g of water in a dyeing cup, and then add glass beads having a diameter of 2 mm and preprove for 30 min, pre-grinding speed. It is 900R / min to obtain an prepreg, the compound dispersant, an anionic dispersant and a nonionic dispersant, the mass proportion of the anionic dispersant and the nonionic dispersant in the compound dispersant. 6: 4;

[0023] Among them, the dispersion dye filter cake is dispersed blue 79 filter cake; the anionic dispersant is a secondaryly sodium sulfonate, and the nonionic dispersant is a triphenylphenol polyoxyethylene ether having an EO of 20. Ethylene oxide ;

[0024] b) After the pre-developing abrasive dye prepared in step a), the diameter of 1 mm is added, and the mood is used for secondary ground grinding 2 h, the secondary abrasive rotation speed is 2800 r / min, and a liquid dispe...

Example Embodiment

[0025] Second Example II, Storage Stability Test of Liquid Dispersion Dyes for High Temperature Dures:

[0026] The liquid dispersion dye prepared by the examples is carried out, and the stability of the liquid dispersion dye at normal temperature and 60 ° C is shown in Tables 1 and 2:

[0027] Although the number of days is placed 0 7 14 21 28 Particle size (nm) 158.2 160.6 165.7 170.1 183.6 PDI 0.204 0.204 0.206 0.208 0.211

[0028] Table 1 Stability of liquid dispersion dyes for high temperature dip in normal temperature

[0029] Place the number of days at 60 ° C 0 7 14 21 28 Particle size (nm) 158.2 165.6 174.2 185.4 200.7 PDI 0.204 0.207 0.209 0.213 0.214

[0030] Table 2 Stability of liquid dispersion dyes at 60 ° C for high temperature dip

[0031] From Tables 1 and 2 above, the storage stability of the liquid dispersion dye prepared by this Law is better.

Example Embodiment

[0032] Example III: Comparison of Performance Testing of Liquid Dispersion Dyes and Powder Dispersion Dyes for High Temperature Dye:

[0033] At the same concentration, a liquid disperse dye prepared by Examples and a commercially available powder disperse dye is compared to the polyester fabric, respectively, high temperature and high pressure dye, and compare the dyeing performance between the two, and the results are as follows Show:

[0034]

[0035] Table 3 Dyeing performance indicators of liquid dispersion dyes and powder dispersion dyes for high temperature dip

[0036] From the above Table 3, the friction fastness of the liquid dispersion dye for high temperature dip and dispersion dye can reach the friction fastness of the powder dispersion dye, and the K / S and uncomperation of liquid disperse dyes for high temperature dip and dispersion are significantly better than the powder dispersion. The k / s and uniformity of the dye. In addition, the COD value of the residue ...

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Abstract

The invention discloses a liquid disperse dye for high-temperature dip dyeing and a preparation method thereof. The liquid disperse dye for high-temperature dip dyeing comprises a compound dispersing agent, a disperse dye filter cake and water, wherein the compound dispersing agent accounts for 15-40% of the dry weight of the disperse dye filter cake, the compound dispersing agent is a mixed dispersing agent of an anionic dispersing agent and a nonionic dispersing agent, and the mass ratio of the anionic dispersing agent to the nonionic dispersing agent in the compound dispersing agent is (8-4):(2-6). According to the preparation method, the anionic dispersing agent and the nonionic dispersing agent are compounded and then are mixed and ground with the disperse dye filter cake and the water phase, so that the nanoscale liquid disperse dye can be prepared, and the liquid disperse dye is uniform in particle size distribution and has relatively high dispersity, diffusivity and stability; and particularly, the disperse dye can be applied to a high-temperature dip dyeing process of polyester fabrics, and various indexes such as color fastness, leveling property and residual liquid COD (Chemical Oxygen Demand) are superior to those of the existing powder disperse dye.

Description

【Technical field】 [0001] The invention relates to the technical field of printing and dyeing, in particular to the technical field of a liquid disperse dye for high-temperature exhaust dyeing and a preparation method thereof. 【Background technique】 [0002] Disperse dyes are a class of non-ionic dyes with small molecules, simple structures and low water solubility. Since polyester is the largest and most widely used synthetic fiber in the world, and disperse dyes are the main dyes for polyester fiber dyeing and printing, disperse dyes occupy a pivotal position in the dye market. [0003] At present, disperse dyes are mainly powder disperse dyes, which require a high content of auxiliaries. After dyeing or printing, a large amount of water needs to be used to remove the residual dyeing agent, which will easily cause a large amount of water resource consumption and pollution. It reduces the difficulty and cost of subsequent printing and dyeing wastewater treatment. In additi...

Claims

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Application Information

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IPC IPC(8): C09B67/40C09B67/46
CPCC09B67/0082C09B67/0086C09B67/0089C09B67/0091
Inventor 姜建堂吴明华
Owner ZHEJIANG SCI-TECH UNIV
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