CN111607985A - Novel cationic dye normal-pressure dyeable polyester top dyeing process - Google Patents
Novel cationic dye normal-pressure dyeable polyester top dyeing process Download PDFInfo
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- CN111607985A CN111607985A CN202010432657.0A CN202010432657A CN111607985A CN 111607985 A CN111607985 A CN 111607985A CN 202010432657 A CN202010432657 A CN 202010432657A CN 111607985 A CN111607985 A CN 111607985A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/16—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/54—Polyesters using dispersed dyestuffs
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/10—After-treatment with compounds containing metal
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Abstract
The invention discloses a novel cationic dye normal-pressure dyeable polyester top dyeing process, which comprises the following steps: the method comprises the following steps: high-temperature pretreatment, loading the polyester hair balls into a dye vat, adding clear water, heating to 125 ℃, preserving heat for 30min, cooling to 80 ℃, draining water, dehydrating and drying the hair balls, and then re-balling; step two: dyeing the top, reloading the polyester wool balls subjected to high-temperature pretreatment into a dye vat, adding a penetration enhancer and anhydrous sodium acetate at room temperature, running for 10 minutes, then adding a diffusion enhancer and an oligomer remover, running for 10 minutes, then adding a dye, and running for 10 minutes. The novel cationic dye normal-pressure dyeable terylene is subjected to high-temperature pretreatment, and the fiber is pre-shaped, so that the dimensional stability of the fiber is improved, and the level dyeing performance of the fiber is improved; meanwhile, various dyeing fastnesses of the fabric are improved through reasonable reduction cleaning and high-temperature acid washing; meanwhile, the ecological and environment-friendly disperse dye is adopted for dyeing at 115 ℃, so that the energy is saved, the consumption is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of top dyeing processes, in particular to a novel normal-pressure dyeable polyester top dyeing process using cationic dye.
Background
The polyethylene terephthalate (PET) fiber has a regular macromolecular structure and high crystallinity and orientation degree, the glass transition temperature (Tg) of the PET with a random structure is 79 ℃, and after stretching orientation, the Tg after shaping is improved to 125 ℃; the molecular structure of PET lacks active groups combined with dyes; therefore, PET fibers can generally only be dyed with disperse dyes under high temperature and high pressure conditions. The novel cationic normal pressure dyeable polyester fiber (NECDP) is a polyester fiber which is researched and improved by professor team in Zhanda province of Beijing clothing academy, and is characterized in that polyethylene glycol isophthalate-5-sodium sulfonate and polyethylene glycol terephthalate chain segments are introduced into the chemical structure of conventional PET, so that the structural regularity of macromolecule of PET is damaged, the flexibility of the PET is increased, the glass transition temperature of the PET is reduced, and the introduced sulfonic acid groups can provide dyeing seats for cationic dyes, therefore, the NECDP can be dyed by the cationic dyes under normal pressure conditions, and dyed fabrics are bright in color and have good color fastness.
At present, the existing polyester top dyeing process has some defects, such as; (1) the terylene high-temperature high-pressure dyeing method generally adopts disperse dyes to dye at 130 ℃, and has the advantages of high energy consumption, long production time, high cost and insufficient bright color; (2) the ideal carrier in the terylene carrier dyeing method has the characteristics of no toxicity, no odor, obvious dyeing promotion effect, no damage to fiber, no influence on color brightness and color fastness, easy washing and removal, low price and the like. However, most of the currently used carriers are toxic, have peculiar smell, are not environment-friendly, are difficult to thoroughly wash and remove, and have higher cost.
Disclosure of Invention
The invention aims to provide a novel dyeing process of a cationic dye for dyeing polyester tops at normal pressure, which solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a novel cationic dye normal-pressure dyeable polyester top dyeing process comprises the following steps:
the method comprises the following steps: high-temperature pretreatment, loading the polyester hair balls into a dye vat, adding clear water, heating to 125 ℃, preserving heat for 30min, cooling to 80 ℃, draining water, dehydrating and drying the hair balls, and then re-balling;
step two: dyeing the top wool, reloading the polyester wool ball subjected to high-temperature pretreatment into a dye vat, adding a penetration enhancer and anhydrous sodium acetate at room temperature, running for 10 minutes, then adding a diffusion enhancer and an oligomer remover, running for 10 minutes, then adding a dye, running for 10 minutes, then adding formic acid, adjusting the pH value of dyeing to 4-5, then heating to 65 ℃ at the speed of 2 ℃/min, keeping the temperature for 10 minutes, then heating to 120 ℃ at the speed of 110-90 minutes at the speed of 0.5-1.5 ℃/min, keeping the temperature for 30-90 minutes, then cooling to 80 ℃, and draining;
step three: reducing and cleaning, and carrying out acid or alkaline reducing and cleaning after dyeing is finished, wherein the acid reducing and cleaning process comprises the following steps: adding acidic reducing cleaning agent and multifunctional dispersant, operating for 10min, adjusting pH to 3.5-4, heating to 80 deg.C, maintaining the temperature for 20-30min, overflowing, washing for 20min, and draining;
step four: pickling wool tops at high temperature, adding acetic acid, adjusting pH to 4-5, heating to 120 deg.C, maintaining the temperature for 20min, cooling to 80 deg.C, overflowing, washing for 15min, and draining;
step five: softening, adding antistatic agent and formic acid, heating to 50-60 deg.C, and keeping the temperature for 20-30 min.
In a preferred embodiment of the invention, the penetration enhancer in the second step is ALBAFLOW FFW, the dosage of the penetration enhancer is 0.5mL/L, the dosage of the anhydrous sodium acetate is 1g/L, and the diffusion enhancer is UNIVADINE DFM, and the dosage of the diffusion enhancer is 1%.
As a preferred embodiment of the present invention, in the second step, the oligomer removing agent is RUCO-TEX OGX, which is used in an amount of 1%, and the dye is DIANIX disperse dye.
As a preferred embodiment of the invention, the acid reducing cleaning agent in the third step is domestic bleaching powder, and the dosage of the acid reducing cleaning agent is 2g/L, and the multifunctional dispersing agent is INVALON DAM, and the dosage of the multifunctional dispersing agent is 1 g/L.
As a preferred embodiment of the present invention, the alkaline reduction cleaning process in step three is: adding sodium dithionite, running for 10min, adding liquid alkali, adjusting pH to 8-8.5, heating to 80-100 deg.C, maintaining the temperature for 20-30min, cooling to 80 deg.C, overflowing, washing with water for 20min, and draining.
As a preferred embodiment of the invention, the amount of sodium dithionite used in step III is 0.24 g/L.
In a preferred embodiment of the present invention, the antistatic agent in step five is AVISTAT AZ NEW, and the dosage is 3.5%.
Compared with the prior art, the invention has the following beneficial effects:
the novel cationic dye normal-pressure dyeable terylene is subjected to high-temperature pretreatment, and the fiber is pre-shaped, so that the dimensional stability of the fiber is improved, and the level dyeing performance of the fiber is improved; meanwhile, various dyeing fastnesses of the fabric are improved through reasonable reduction cleaning and high-temperature acid washing; meanwhile, the ecological and environment-friendly disperse dye is adopted for dyeing at 115 ℃, so that the energy is saved, the consumption is reduced, and the production efficiency is improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The invention provides a technical scheme that: a novel cationic dye normal-pressure dyeable polyester top dyeing process comprises the following steps:
the method comprises the following steps: high-temperature pretreatment, loading the polyester hair balls into a dye vat, adding clear water, heating to 125 ℃, preserving heat for 30min, cooling to 80 ℃, draining water, dehydrating and drying the hair balls, and then re-balling;
step two: dyeing the top wool, reloading the polyester wool ball subjected to high-temperature pretreatment into a dye vat, adding a penetration enhancer and anhydrous sodium acetate at room temperature, running for 10 minutes, then adding a diffusion enhancer and an oligomer remover, running for 10 minutes, then adding a dye, running for 10 minutes, then adding formic acid, adjusting the pH value of dyeing to 4-5, then heating to 65 ℃ at the speed of 2 ℃/min, keeping the temperature for 10 minutes, then heating to 120 ℃ at the speed of 110-90 minutes at the speed of 0.5-1.5 ℃/min, keeping the temperature for 30-90 minutes, then cooling to 80 ℃, and draining;
step three: reducing and cleaning, and carrying out acid or alkaline reducing and cleaning after dyeing is finished, wherein the acid reducing and cleaning process comprises the following steps: adding acidic reducing cleaning agent and multifunctional dispersant, operating for 10min, adjusting pH to 3.5-4, heating to 80 deg.C, maintaining the temperature for 20-30min, overflowing, washing for 20min, and draining;
step four: pickling wool tops at high temperature, adding acetic acid, adjusting pH to 4-5, heating to 120 deg.C, maintaining the temperature for 20min, cooling to 80 deg.C, overflowing, washing for 15min, and draining;
step five: softening, adding antistatic agent and formic acid, heating to 50-60 deg.C, and keeping the temperature for 20-30 min.
Further, the penetration enhancer in the second step is ALBAFLOW FFW, the dosage of the penetration enhancer is 0.5mL/L, the dosage of the anhydrous sodium acetate is 1g/L, and the diffusion enhancer is UNIVADINE DFM, and the dosage of the diffusion enhancer is 1%.
Further, in the second step, the oligomer remover is RUCO-TEX OGX, the dosage of the oligomer remover is 1 percent, and the dye is DIANIX disperse dye.
Further, the acid reduction cleaning agent in the third step is domestic bleaching powder, the dosage of the acid reduction cleaning agent is 2g/L, and the multifunctional dispersing agent is INVALON DAM, and the dosage of the multifunctional dispersing agent is 1 g/L.
Further, the alkaline reduction cleaning process in the third step comprises the following steps: adding sodium dithionite, running for 10min, adding liquid alkali, adjusting pH to 8-8.5, heating to 80-100 deg.C, maintaining the temperature for 20-30min, cooling to 80 deg.C, overflowing, washing with water for 20min, and draining.
Furthermore, the using amount of the sodium hydrosulfite in the third step is 0.24 g/L.
Further, the antistatic agent in the fifth step is AVISTAT AZ NEW, and the dosage of the antistatic agent is 3.5%.
Example one
A novel cationic dye normal-pressure dyeable polyester top dyeing process comprises the following steps:
the method comprises the following steps: high-temperature pretreatment, loading the polyester hair balls into a dye vat, adding clear water, heating to 125 ℃, preserving heat for 30min, cooling to 80 ℃, draining water, dehydrating and drying the hair balls, and then re-balling;
step two: dyeing the top wool, reloading the polyester wool balls subjected to high-temperature pretreatment into a dye vat, adding a penetration enhancer and anhydrous sodium acetate at room temperature, running for 10 minutes, then adding a diffusion enhancer and an oligomer remover, running for 10 minutes, then adding a dye, running for 10 minutes, then adding formic acid, adjusting the pH value of dyeing to 4.88, then heating to 65 ℃ at the speed of 2 ℃/min, keeping the temperature for 10 minutes, then heating to 115 ℃ at the speed of 0.5 ℃/min, keeping the temperature for 60 minutes, then cooling to 80 ℃, and draining;
step three: reducing and cleaning, and carrying out acid reducing and cleaning after dyeing, wherein the process comprises the following steps: adding an acidic reduction cleaning agent and a multifunctional dispersing agent, running for 10 minutes, adjusting the pH value to 3.8, heating to 80 ℃, keeping the temperature for 20min, overflowing, washing for 20min, and draining;
step four: pickling wool tops at high temperature, adding acetic acid, adjusting pH to 4.5, heating to 120 deg.C, maintaining the temperature for 20min, cooling to 80 deg.C, overflowing, washing for 15min, and draining;
step five: softening and post-treating, adding antistatic agent and formic acid, heating to 60 deg.C, and holding for 20 min.
Further, the penetration enhancer in the second step is ALBAFLOW FFW, the dosage of the penetration enhancer is 0.5mL/L, the dosage of the anhydrous sodium acetate is 1g/L, and the diffusion enhancer is UNIVADINE DFM, and the dosage of the diffusion enhancer is 1%.
Further, in the second step, the oligomer removing agent is RUCO-TEX OGX, and the dosage of the oligomer removing agent is 1%, the dye is DIANIX disperse dye, and the dosage of the oligomer removing agent is 6.5%.
Further, the acid reduction cleaning agent in the third step is domestic bleaching powder, the dosage of the acid reduction cleaning agent is 2g/L, and the multifunctional dispersing agent is INVALON DAM, and the dosage of the multifunctional dispersing agent is 1 g/L.
Further, the antistatic agent in the fifth step is AVISTAT AZ NEW, and the dosage of the antistatic agent is 3.5%.
In conclusion, the novel cationic dye normal-pressure dyeable terylene is subjected to high-temperature pretreatment, and the fiber is pre-shaped, so that the dimensional stability of the fiber is improved, and the level dyeing performance of the fiber is improved.
Example two
A novel cationic dye normal-pressure dyeable polyester top dyeing process comprises the following steps:
the method comprises the following steps: high-temperature pretreatment, loading the polyester hair balls into a dye vat, adding clear water, heating to 125 ℃, preserving heat for 30min, cooling to 80 ℃, draining water, dehydrating and drying the hair balls, and then re-balling;
step two: dyeing the top wool, reloading the polyester wool balls subjected to high-temperature pretreatment into a dye vat, adding a penetration enhancer and anhydrous sodium acetate at room temperature, running for 10 minutes, then adding a diffusion enhancer and an oligomer remover, running for 10 minutes, then adding a dye, running for 10 minutes, then adding formic acid, adjusting the pH value of dyeing to 4.58, then heating to 65 ℃ at the speed of 2 ℃/min, keeping the temperature for 10 minutes, then heating to 120 ℃ at the speed of 1.5 ℃/min, keeping the temperature for 60 minutes, then cooling to 80 ℃, and draining;
step three: reducing and cleaning, after dyeing, carrying out alkaline reducing and cleaning, wherein the process comprises the following steps: adding sodium dithionite, running for 10min, adding liquid alkali, adjusting pH to 8, heating to 100 deg.C, maintaining the temperature for 20min, cooling to 80 deg.C, overflowing, washing for 20min, and draining.
Step four: pickling wool tops at high temperature, adding acetic acid, adjusting pH to 4.5, heating to 120 deg.C, maintaining the temperature for 20min, cooling to 80 deg.C, overflowing, washing for 15min, and draining;
step five: softening and post-treating, adding antistatic agent and formic acid, heating to 60 deg.C, and holding for 20 min.
Further, the penetration enhancer in the second step is ALBAFLOW FFW, the dosage of the penetration enhancer is 0.5mL/L, the dosage of the anhydrous sodium acetate is 1g/L, and the diffusion enhancer is UNIVADINE DFM, and the dosage of the diffusion enhancer is 1%.
Further, in the second step, the oligomer removing agent is RUCO-TEX OGX, and the dosage of the oligomer removing agent is 1%, the dye is DIANIX disperse dye, and the dosage of the oligomer removing agent is 6.5%.
Furthermore, the using amount of the sodium hydrosulfite in the third step is 0.24 g/L.
Further, the antistatic agent in the fifth step is AVISTAT AZ NEW, and the dosage of the antistatic agent is 3.5%.
In conclusion, various dyeing fastnesses of the fabric are improved through reasonable reduction cleaning and high-temperature acid washing; meanwhile, the ecological and environment-friendly disperse dye is adopted for dyeing at 115 ℃, so that the energy is saved, the consumption is reduced, and the production efficiency is improved.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A novel cationic dye normal-pressure dyeable polyester top dyeing process is characterized by comprising the following steps: comprises the following steps:
the method comprises the following steps: high-temperature pretreatment, loading the polyester hair balls into a dye vat, adding clear water, heating to 125 ℃, preserving heat for 30min, cooling to 80 ℃, draining water, dehydrating and drying the hair balls, and then re-balling;
step two: dyeing the top wool, reloading the polyester wool ball subjected to high-temperature pretreatment into a dye vat, adding a penetration enhancer and anhydrous sodium acetate at room temperature, running for 10 minutes, then adding a diffusion enhancer and an oligomer remover, running for 10 minutes, then adding a dye, running for 10 minutes, then adding formic acid, adjusting the pH value of dyeing to 4-5, then heating to 65 ℃ at the speed of 2 ℃/min, keeping the temperature for 10 minutes, then heating to 120 ℃ at the speed of 110-90 minutes at the speed of 0.5-1.5 ℃/min, keeping the temperature for 30-90 minutes, then cooling to 80 ℃, and draining;
step three: reducing and cleaning, and carrying out acid or alkaline reducing and cleaning after dyeing is finished, wherein the acid reducing and cleaning process comprises the following steps: adding acidic reducing cleaning agent and multifunctional dispersant, operating for 10min, adjusting pH to 3.5-4, heating to 80 deg.C, maintaining the temperature for 20-30min, overflowing, washing for 20min, and draining;
step four: pickling wool tops at high temperature, adding acetic acid, adjusting pH to 4-5, heating to 120 deg.C, maintaining the temperature for 20min, cooling to 80 deg.C, overflowing, washing for 15min, and draining;
step five: softening, adding antistatic agent and formic acid, heating to 50-60 deg.C, and keeping the temperature for 20-30 min.
2. The novel cationic dye normal-pressure dyeable polyester top dyeing process according to claim 1, which is characterized in that: in the second step, the permeation enhancer is ALBAFLOW FFW, the dosage of the permeation enhancer is 0.5mL/L, the dosage of the anhydrous sodium acetate is 1g/L, and the diffusion enhancer is UNIVADINE DFM, and the dosage of the diffusion enhancer is 1%.
3. The novel cationic dye normal-pressure dyeable polyester top dyeing process according to claim 1, which is characterized in that: in the second step, the oligomer remover is RUCO-TEX OGX, the dosage of the oligomer remover is 1 percent, and the dye is DIANIX disperse dye.
4. The novel cationic dye normal-pressure dyeable polyester top dyeing process according to claim 1, which is characterized in that: the acid reduction cleaning agent in the third step is domestic bleaching powder, the dosage of the acid reduction cleaning agent is 2g/L, and the multifunctional dispersing agent is INVALON DAM, and the dosage of the multifunctional dispersing agent is 1 g/L.
5. The novel cationic dye normal-pressure dyeable polyester top dyeing process according to claim 1, which is characterized in that: the alkaline reduction cleaning process in the third step comprises the following steps: adding sodium dithionite, running for 10min, adding liquid alkali, adjusting pH to 8-8.5, heating to 80-100 deg.C, maintaining the temperature for 20-30min, cooling to 80 deg.C, overflowing, washing with water for 20min, and draining.
6. The novel cationic dye normal-pressure dyeable polyester top dyeing process according to claim 1, which is characterized in that: the using amount of the sodium hydrosulfite in the third step is 0.24 g/L.
7. The novel cationic dye normal-pressure dyeable polyester top dyeing process according to claim 1, which is characterized in that: the antistatic agent in the fifth step is AVISTAT AZ NEW, and the dosage of the antistatic agent is 3.5%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281521A (en) * | 2020-11-10 | 2021-01-29 | 张家港扬子染整有限公司 | Teralvirala polyester top dyeing process |
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| CN104088164A (en) * | 2014-07-08 | 2014-10-08 | 常州旭荣针织印染有限公司 | Disperse dye and cationic dye one-bath dyeing process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104088164A (en) * | 2014-07-08 | 2014-10-08 | 常州旭荣针织印染有限公司 | Disperse dye and cationic dye one-bath dyeing process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112281521A (en) * | 2020-11-10 | 2021-01-29 | 张家港扬子染整有限公司 | Teralvirala polyester top dyeing process |
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Application publication date: 20200901 |