CN111004525A - Preparation method of yellow vat dye with improved performance - Google Patents
Preparation method of yellow vat dye with improved performance Download PDFInfo
- Publication number
- CN111004525A CN111004525A CN201811166027.2A CN201811166027A CN111004525A CN 111004525 A CN111004525 A CN 111004525A CN 201811166027 A CN201811166027 A CN 201811166027A CN 111004525 A CN111004525 A CN 111004525A
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- China
- Prior art keywords
- vat dye
- improved performance
- yellow vat
- slurry
- preparation
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0001—Post-treatment of organic pigments or dyes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0001—Post-treatment of organic pigments or dyes
- C09B67/0002—Grinding; Milling with solid grinding or milling assistants
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0001—Post-treatment of organic pigments or dyes
- C09B67/0003—Drying, e.g. sprax drying; Sublimation of the solvent
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0001—Post-treatment of organic pigments or dyes
- C09B67/0014—Influencing the physical properties by treatment with a liquid, e.g. solvents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention discloses a preparation method of a yellow vat dye with improved performance, and belongs to the technical field of textile dyes. A preparation method of yellow vat dye with improved performance comprises the following steps: s1, weighing each yellow vat dye monomer filter cake according to a proportion, adding the yellow vat dye monomer filter cake into a dispersion kettle, adding a dispersing agent, and pulping to obtain a slurry; s2, transferring the slurry obtained in the step S1 to a liquid fine crusher for crushing, and then transferring the crushed slurry to a sand mill for grinding for 20-30 h; s3, adding the extracting solution obtained in the step S2 into an ethanol solution, centrifuging and filtering; s4, extracting the grinding slurry obtained in the step S3 for 10-20min by using ultrasound; s5, conveying the product obtained in the step S4 into a microwave drying chamber for drying, and spraying a dustproof agent; and S6, packaging the product obtained in the step S5 to obtain the product. The invention provides a preparation method of a yellow vat dye with improved performance, the preparation process of the yellow vat dye with improved performance is simple, the reaction time consumption is short, the efficiency is high, and the prepared dye has excellent color fastness, especially excellent fastness to sunlight and washing.
Description
Technical Field
The invention belongs to the technical field of textile coatings, and particularly relates to a preparation method of a yellow vat dye with improved performance.
Background
The vat dye is a dye with excellent performance in the dye, has various varieties, complete chromatogram, bright color, good dyeing fastness, good washing fastness and light fastness, and can be widely applied to printing and dyeing of cotton, wool, silk, hemp, synthetic fibers, blended fabrics thereof and mixed fabrics thereof. At present, the majority of the vat dyes on the market are medium, the yellow variety is few and is basically a single component, with the improvement of the quality of life of people, the light and soaping fastness of the yellow vat dyes is not enough to meet the requirements of people, the rubbing fastness is low when dyeing dark colors, and more or less obvious hue shifts are generated when soaping in fabric-dyeing and fabric-finishing equipment and when soaping by consumers. In addition, in the commercial manufacturing process, the problems of low padding dyeing color yield, poor dispersion stability and diffusivity of the suspension and the like of the product are caused due to improper selection of the auxiliary agent and the proportion thereof. Thus, there remains a need for new products that produce yellow shades that overcome the above-mentioned disadvantages.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides a preparation method of a yellow vat dye with improved performance, the preparation process of the yellow vat dye with improved performance is simple, the reaction time consumption is short, the efficiency is high, and the prepared dye has excellent color fastness, especially excellent fastness to sunlight and washing.
In order to achieve the above object, the present invention provides a method for preparing a yellow vat dye with improved performance, which is characterized by comprising the following steps:
s1, weighing each yellow vat dye monomer filter cake according to a proportion, adding the yellow vat dye monomer filter cake into a dispersion kettle, adding a dispersing agent, and pulping to obtain a slurry;
s2, transferring the slurry obtained in the step S1 to a liquid fine crusher for crushing, and then transferring the crushed slurry to a sand mill for grinding for 20-30 h;
s3, adding the extracting solution obtained in the step S2 into an ethanol solution, centrifuging and filtering;
s4, extracting the grinding slurry obtained in the step S3 for 10-20min by using ultrasound;
s5, conveying the product obtained in the step S4 into a microwave drying chamber for drying, and spraying a dustproof agent;
and S6, packaging the product obtained in the step S5 to obtain the product.
Further, the volume fraction of the ethanol aqueous solution in the step S3 is 20 to 40%.
Further, the frequency of the ultrasound in step S4 is 500-.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects: the invention provides a preparation method of a yellow vat dye with improved performance, the preparation process of the yellow vat dye with improved performance is simple, the reaction time consumption is short, the efficiency is high, and the prepared dye has excellent color fastness, especially excellent fastness to sunlight and washing.
Detailed Description
The present invention will now be described more fully and clearly. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
A preparation method of yellow vat dye with improved performance is characterized by comprising the following steps:
s1, weighing each yellow vat dye monomer filter cake according to a proportion, adding the yellow vat dye monomer filter cake into a dispersion kettle, adding a dispersing agent, and pulping to obtain a slurry;
s2, transferring the slurry obtained in the step S1 to a liquid fine crusher for crushing, and then transferring the crushed slurry to a sand mill for grinding for 20 hours;
s3, adding the extracting solution obtained in the step S2 into an ethanol solution with the volume fraction of 20%, centrifuging and filtering;
s4, extracting the grinding slurry obtained in the step S3 for 10min by using ultrasound with the frequency of 500W;
s5, conveying the product obtained in the step S4 into a microwave drying chamber for drying, and spraying a dustproof agent;
and S6, packaging the product obtained in the step S5 to obtain the product.
Example 2
A preparation method of yellow vat dye with improved performance is characterized by comprising the following steps:
s1, weighing each yellow vat dye monomer filter cake according to a proportion, adding the yellow vat dye monomer filter cake into a dispersion kettle, adding a dispersing agent, and pulping to obtain a slurry;
s2, transferring the slurry obtained in the step S1 to a liquid fine crusher for crushing, and then transferring the crushed slurry to a sand mill for grinding for 30 hours;
s3, adding the extracting solution obtained in the step S2 into an ethanol solution with the volume fraction of 40%, centrifuging and filtering;
s4, extracting the grinding slurry obtained in the step S3 for 20min by using ultrasound with the frequency of 700W;
s5, conveying the product obtained in the step S4 into a microwave drying chamber for drying, and spraying a dustproof agent;
and S6, packaging the product obtained in the step S5 to obtain the product.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. A preparation method of yellow vat dye with improved performance is characterized by comprising the following steps:
s1, weighing each yellow vat dye monomer filter cake according to a proportion, adding the yellow vat dye monomer filter cake into a dispersion kettle, adding a dispersing agent, and pulping to obtain a slurry;
s2, transferring the slurry obtained in the step S1 to a liquid fine crusher for crushing, and then transferring the crushed slurry to a sand mill for grinding for 20-30 h;
s3, adding the extracting solution obtained in the step S2 into an ethanol solution, centrifuging and filtering;
s4, extracting the grinding slurry obtained in the step S3 for 10-20min by using ultrasound;
s5, conveying the product obtained in the step S4 into a microwave drying chamber for drying, and spraying a dustproof agent;
and S6, packaging the product obtained in the step S5 to obtain the product.
2. The method for preparing the yellow vat dye with improved performance according to claim 1, wherein the method comprises the following steps: the volume fraction of the ethanol aqueous solution in the step S3 is 20-40%.
3. The method for preparing the yellow vat dye with improved performance according to claim 1, wherein the method comprises the following steps: the frequency of the ultrasound in step S4 is 500-700W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811166027.2A CN111004525A (en) | 2018-10-08 | 2018-10-08 | Preparation method of yellow vat dye with improved performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811166027.2A CN111004525A (en) | 2018-10-08 | 2018-10-08 | Preparation method of yellow vat dye with improved performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111004525A true CN111004525A (en) | 2020-04-14 |
Family
ID=70110537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811166027.2A Pending CN111004525A (en) | 2018-10-08 | 2018-10-08 | Preparation method of yellow vat dye with improved performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111004525A (en) |
-
2018
- 2018-10-08 CN CN201811166027.2A patent/CN111004525A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200414 |