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Aftertreatment method for liquid disperse dye

A technology of liquid disperse dyes and disperse blue, which is applied in the fields of dyeing, organic dyes, textiles and papermaking, etc. It can solve the problems of short shelf life, easy sedimentation, troublesome transportation and storage of liquid disperse dyes, etc., so as to shorten the production cycle and not easily Settling, high color fastness effect

Inactive Publication Date: 2013-04-24
浙江龙盛染料化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, traditional liquid disperse dyes have a short shelf life, especially in summer, and are prone to sedimentation, which brings a lot of trouble to transportation and storage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. In a four-neck flask equipped with a condenser, thermometer, stirrer and feeding port, add C.I. Disperse Blue B291 filter cake 70g (dry weight), C.I. Disperse Orange 61 filter cake 20g (dry weight), C.I. Disperse Violet 93 : 1 filter cake 10g (dry weight) and 150g water, add 5g triglycerol monostearate and 1g aniline again, stir beating for 2 hours, be warming up to 95 ℃~100 ℃, insulated and slowly stirred for 3 hours;

[0025] 2. Cool the slurry liquid obtained in step 1 to room temperature, add 60g sodium lignosulfonate and 20g diffusing agent NNO, add water to control the liquid-solid content of the slurry to 45%, and grind for 5 hours with a sand mill to obtain the slurry , the diffusibility of the slurry is detected to reach level 4 or above, and the shade, strength, and spots of the slurry are controlled to be qualified;

[0026] 3. Transfer the qualified slurry in step 2 to a flask with a stirrer and a feeding port, slowly add 0.8g of guar gum while stirring, ...

Embodiment 2

[0029] 1. In a four-neck flask equipped with a condenser, thermometer, stirrer and feeding port, add C.I. Disperse Red 167 filter cake 100g (dry weight) and 150g water, then add 3g triglycerol monostearate and 1g Aniline, stirring and beating for 2 hours, heating up to 95°C-100°C, keeping warm and stirring slowly for 3 hours;

[0030] 2. Cool the slurry obtained in step 1 to room temperature, add 30g dispersant MF and 30g lignin 85A, add water to control the liquid-solid content of the slurry to 39%, grind for 4 hours with a sand mill to obtain the slurry, and detect that its diffusivity reaches Grade 4 or above; control the shade, strength, and spots of the paste;

[0031] 3. Move the qualified slurry in step 2 to a flask with a stirrer and a feeding port, slowly add 0.9 g of modified xanthan gum while stirring, and stir for 1 to 2 hours after feeding;

[0032] 4. Filter the slurry obtained in step 3 through a 300-mesh double-layer sieve to obtain a liquid disperse dye with ...

Embodiment 3

[0034] 1. In a four-neck flask equipped with a condenser, thermometer, stirrer and feeding port, add C.I. Disperse Blue 79 filter cake 41.5g (dry weight), C.I. Disperse Orange 44 filter cake 49.1g (dry weight), C.I. Purple 93 filter cake 9.4g (dry weight) and 150g water, add 5g tripolyglycerol laurate and 1g N, N-diethylaniline, stir and beat for 2 hours, heat up to 95 ° C ~ 100 ° C, keep warm and stir slowly for 3 Hour;

[0035] 2. Cool the slurry liquid obtained in step 1 to room temperature, add 80g sodium lignosulfonate, add water to control the liquid-solid content of the slurry to 42%, grind for 5 hours with a sand mill to obtain the slurry, and detect its diffusivity Reach grade 4 or above, and control the shade, strength, and spots of the paste;

[0036] 3. Transfer the qualified slurry in step 2 to a flask with a stirrer and a feeding port, slowly add 1 g of guar gum while stirring, and then stir for 1 to 2 hours after feeding;

[0037] 4. Filter the slurry obtained...

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Abstract

The invention provides an aftertreatment method for a liquid disperse dye. The aftertreatment method for the liquid disperse dye comprises the following steps: adding water to dissolve a filter cake containing the liquid disperse dye, which is obtained by diazotization, coupling and filtering, to obtain slurry with a solid content of 30 to 50 percent; adding polyglyceryl fatty acid ester surfactants of which the mass is 0.1 to 10 percent of that of the slurry and phenyl amines compounds of which the mass is 0.2 to 2 percent of that of the slurry; stirring and pulping for 1 to 5 hours; raisingthe temperature to between 80 and 110 DEG C and keeping the temperature for 1 to 7 hours; cooling to the normal temperature; adding a dispersing agent or dispersing agent of which the mass is 0.3 to 1 time of that of the dry weight of the filter cake; performing particle processing for 1 to 10 hours by a breaking device, and obtaining slurry; adding a thickening agent of which the mass is 0.1 to 0.3 percent of that of the slurry to the slurry with stirring; continuing to stir for 1 to 2 hours after finishing material addition; and filtering to obtain the liquid disperse dye. The method for preparing the liquid disperse dye has the advantages of low cost, simple operation, active role in environmental protection, and greater economic and social benefits.

Description

(1) Technical field [0001] The invention relates to a post-treatment method for liquid disperse dyes. (2) Background technology [0002] Liquid disperse dyes refer to disperse dyes that exist in liquid form. Liquid disperse dyes have many advantages over powders, slurries, and granules. For example, (1) liquid disperse dyes use much less dispersant than powders to achieve good dispersion effects , and because too much dispersant can limit the migration of dye particles during dyeing, the liquid dye has the characteristics of high dye utilization rate during dyeing; (2) The spray drying process is omitted, thereby saving energy; (3) It is convenient for automation Operation, such as the use of various fluid conveying machinery; (4) No special equipment is required for dissolution, and the solution can be diluted with cold water, avoiding the disadvantages of color points caused by poor dye dissolution during dyeing or printing; (5) There is no dust when used, which can impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/40D06P3/54
Inventor 欧其高怀庆汪仁良王德义
Owner 浙江龙盛染料化工有限公司
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