CN105239425A - Acid dye leveling agent integrating uniform dyeing, color increasing and color fixing and preparation method thereof - Google Patents

Acid dye leveling agent integrating uniform dyeing, color increasing and color fixing and preparation method thereof Download PDF

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Publication number
CN105239425A
CN105239425A CN201510683006.8A CN201510683006A CN105239425A CN 105239425 A CN105239425 A CN 105239425A CN 201510683006 A CN201510683006 A CN 201510683006A CN 105239425 A CN105239425 A CN 105239425A
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hyperchromic
fixation
levelling agent
nano
attapulgite
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CN105239425B (en
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徐强
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Shanghai Xingkang Super Fiber New Material Co ltd
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Huzhou Bo Ren Fabritex Srl
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Abstract

The invention provides an acid dye leveling agent integrating uniform dyeing, color increasing and color fixing and a preparation method thereof. The acid dye leveling agent comprises, by weight parts, 10-30 parts of sodium lignin sulfonate, 15-30 parts of sulfonated castor oil, 20-40 parts of fatty acid amine polyoxyethylene ether, 5-25 parts of nano-attapulgite and 20-50 parts of addition agents. The preparation method comprises the steps: (1) adding a PH modifier to a solvent, evenly stirring the solvent so that the PH of the solvent is stable, slowing adding sodium lignin sulfonate, sulfonated castor oil and fatty acid amine polyoxyethylene ether, evenly stirring the solvent to fully dissolve the solvent, and performing defoaming to obtain mixed solution; (2) adding dispersing agent and the PH modifier into the solvent, adjusting the PH of the solution, adding nano-attapulgite, performing high-speed stirring until the nano-attapulgite is dispersed fully, and obtaining nano-attapulgite solution; (3) linearly slowing adding the nano-attapulgite solution into the mixed solution, evenly stirring the mixed solution, and obtaining the acid dye leveling agent integrating uniform dyeing, color increasing and color fixing.

Description

A kind ofly collect ACID DYES levelling agent of level dyeing hyperchromic fixation one and preparation method thereof
Technical field:
The invention belongs to textile material technical field, be specifically related to a kind ofly collect ACID DYES levelling agent of level dyeing hyperchromic fixation one and preparation method thereof.
Background technology:
In dyeing and printing process process, if occur, the uneven meeting of dyeing has a strong impact on quality and the quality of fabric, therefore in order to make dyestuff reach level dyeing on fabric, does not produce the fault such as vitta, color spot, needs to use levelling agent.The effect of levelling agent has slow dye and moves dye two aspect, makes dyestuff comparatively slowly by while fibers adsorption, impels the dyestuff of dark parts to move to light-colored part, finally reach the object of level dyeing.Along with the development of science and technology, there is various novel fiber, in order to comply with the environmental consciousness of people and development capable of circulation, all kinds of levelling agents of environmental protection also in succession studied go out city.
Levelling agent great majority are water miscible surfactants, according to the impact of levelling agent on dye diffusion and concentration class, mainly be divided into close fibroid and parent dye, wherein close fibroid levelling agent only has the effect of slow dye, the dye levelling agent of parent can reduce the diffusion rate of dyestuff and delay the time of dyeing, has the slow effect contaminating and move dye.And close dye levelling agent is also divided into multiple kind according to the difference of the chemical property of dyestuff.
As everyone knows, dyestuff can be divided into DISPERSE DYES, cation dyes, REACTIVE DYES, direct dyes, ACID DYES, reducing dye, azoic dyes and the condensation dye according to the difference of its chemical property.ACID DYES is the water-soluble dye with acidic-group on a class formation, dye in acid medium, mostly containing sulfonate sodium in ACID DYES, can be water-soluble, lovely luster, chromatogram are complete, mainly be mainly used in the dyeing such as wool, silk and polyamide fibre, also can be used for the aspects such as leather, paper, ink, but cannot directly carry out painted to cellulose fibre.
The disclosed a kind of acid levelling agent of Chinese patent CN103243582A (publication date 2013.8.14) and preparation method, this acid levelling agent comprises polyvinylpyrrolidone, empgen BB, aliphatic alcohol polyethenoxy, sodium sulfate of polyethenoxy ether of fatty alcohol and water, this levelling agent by select dissimilar raw material composite go out wide, the effective ACID DYES levelling agent of applicability, especially reduce the look flower, the color spot agent strip defect that easily occur when ACID DYES dyes to polyamide fibre.The disclosed a kind of high temperature levelling agent of Chinese patent CN103290705B (publication date 2013.9.11), this high temperature levelling agent comprises glycerin ether oleate, tartaric acid, aliphatic amine polyoxyethylene ether, lanolin, glycol fatty acid ester and glycerol trioleate.This high temperature levelling agent has excellent dye dispersion, the initial stage delays metachromia, as the High Temperature High Pressure Disperse Leveler of polyster fibre, can maintain dye bath and dye in acid condition, effectively avoids sensitive dye to be hydrolyzed and the cloth cover chromatic light deviation that causes.
From above-mentioned prior art, current ACID DYES levelling agent is seldom both sexes Compositional type levelling agent, and the ACID DYES levelling agent spininess of preparation is to the uniform dyeing property of single fiber, the research of the aberration of fabric and the saturation degree of color is unsatisfactory, is therefore necessary to develop a kind of ACID DYES levelling agent integrating the hyperchromic fixation of level dyeing.
Summary of the invention:
The technical problem to be solved in the present invention is to provide and a kind ofly collects ACID DYES levelling agent of level dyeing hyperchromic fixation one and preparation method thereof, the ACID DYES levelling agent of the hyperchromic fixation one of this collection level dyeing comprises anion surfactant, weak cation surfactant and high molecular polymer, when can make dyeing by the ACID DYES levelling agent of the composite preparation of three, even dyeing effect is good, aberration rate is little, and bright in colour, high to the relevance factor of multiple fiber.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing, it is characterized in that, the described hyperchromic fixation of the level dyeing ACID DYES levelling agent integrally that integrates is as both sexes compound surfactant, described both sexes compound surfactant comprises anion surfactant, weak cation surfactant and high molecular polymer, described anion surfactant is sodium lignin sulfonate and sulfonated castor oil, described weak cation surfactant is fatty acid amine polyoxyethylene ether, and described high molecular polymer comprises nano-attapulgite.
Preferably, the component in the ACID DYES levelling agent of the hyperchromic fixation one of described collection level dyeing, by weight, comprising:
Sodium lignin sulfonate 10-30 part;
Sulfonated castor oil 15-30 part;
Fatty acid amine polyoxyethylene ether 20-40 part;
Nano-attapulgite 5-25 part;
Auxiliary agent 20-50 part.
Preferably, the component in the ACID DYES levelling agent of the hyperchromic fixation one of described collection level dyeing, by weight, comprising:
Sodium lignin sulfonate 20-30 part;
Sulfonated castor oil 15-25 part;
Fatty acid amine polyoxyethylene ether 25-40 part;
Nano-attapulgite 5-20 part;
Auxiliary agent 25-50 part.
Preferably described auxiliary agent comprises PH conditioning agent, dispersant and solvent.
The present invention also provides a kind of preparation method collecting the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing, it is characterized in that: comprise the following steps:
(1) in solvent, add PH conditioning agent, stir stable to the pH value of solution, slowly add sodium lignin sulfonate, sulfonated castor oil and fatty acid amine polyoxyethylene ether, stir to dissolving completely, froth breaking obtains mixed solution;
(2) in solvent, add dispersant and PH conditioning agent, the pH value of regulator solution, after stirring, add nano-attapulgite, high-speed stirred is complete to dispersion, obtains nano-attapulgite solution;
(3) nano-attapulgite solution step (2) prepared slowly joins in mixed solution prepared by step (1) with wire, stirs, and obtains the ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing.
Preferred as technique scheme, in described step (1) and step (2), solvent is softening deionized water.
Preferred as technique scheme, in described step (1) and step (2), the pH value of solution is 4.5-6.5.
Preferred as technique scheme, in described step (2), the concentration of nano-attapulgite solution is 2-3mg/L.
Preferred as technique scheme, in described step (2), the rotating speed of high-speed stirred is 1500-2000rpm/min.
Preferred as technique scheme, in described step (3), the rotating speed of stirring is 500-800rpm/min.
Compared with prior art, the present invention has following beneficial effect:
(1) containing macromolecule levelling agent nano-attapulgite in the ACID DYES levelling agent of the hyperchromic fixation one of the collection level dyeing prepared of the present invention, can by forming the micelle of space net structure with dye molecule inclusion, play the slow effect contaminating and move dye, increase the level-dyeing property of dyestuff, and the tinting strength, tinting power of dyestuff can be improved, ensure the gorgeous of color and luster.
(2) containing weak cation surfactant and anion surfactant in the ACID DYES levelling agent of the hyperchromic fixation one of the collection level dyeing prepared of the present invention, under acid bath dye environment, the affinity of weak cation surfactant to dyestuff is strong, the dyestuff of upper dye can be moved, there is the effect moving dye, anion surfactant has certain affinity to fiber, and migration rate is higher than anionic dye, therefore early fiber surface can be attached to one step ahead, then replace by dye anion, play the effect of slow dye, therefore weak cation surfactant is matched with anion surfactant, can act on fiber and dyestuff simultaneously, improve the uniformity that each molecule of dyestuff contaminates, the existence of maximum reduction aberration.
(3) the hyperchromic fixation of the collection level dyeing ACID DYES levelling agent integrally that prepared by the present invention can improve the uniformity of the intermolecular distribution of ACID DYES, reduce the generation of aberration, to the ACID DYES of shades of colour, all there is good even dyeing effect, and can promote that each dye molecule formation micelle is attached to the surface of fiber, improve the degree of staining of dyestuff, ensure the gorgeous of color and luster.
Detailed description of the invention:
Describe the present invention in detail below in conjunction with specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment 1:
Collect the component in the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing, by weight, comprising:
Sodium lignin sulfonate 10 parts;
Sulfonated castor oil 15 parts;
Fatty acid amine polyoxyethylene ether 20 parts;
Nano-attapulgite 5 parts;
Auxiliary agent 20 parts.
Concrete preparation method is:
(1) in softening deionized water, PH conditioning agent is added, the pH value of regulator solution is 4.5, stirs stable to the pH value of solution, slowly adds sodium lignin sulfonate, sulfonated castor oil and fatty acid amine polyoxyethylene ether, stir to dissolving completely, froth breaking obtains mixed solution.
(2) in softening deionized water, dispersant and PH conditioning agent is added, the pH value of regulator solution is 4.5, after stirring, and adds nano-attapulgite, complete to dispersion with the speed high-speed stirred of 1500rpm/min, obtain the nano-attapulgite solution of 2mg/L.
(3) nano-attapulgite solution step (2) prepared slowly joins in mixed solution prepared by step (1) with wire, stir with the speed of 500rpm/min, obtain the ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing.
Embodiment 2:
Collect the component in the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing, by weight, comprising:
Sodium lignin sulfonate 30 parts;
Sulfonated castor oil 30 parts;
Fatty acid amine polyoxyethylene ether 40 parts;
Nano-attapulgite 25 parts;
Auxiliary agent 50 parts.
Concrete preparation method is:
(1) in softening deionized water, PH conditioning agent is added, the pH value of regulator solution is 6.5, stirs stable to the pH value of solution, slowly adds sodium lignin sulfonate, sulfonated castor oil and fatty acid amine polyoxyethylene ether, stir to dissolving completely, froth breaking obtains mixed solution.
(2) in softening deionized water, dispersant and PH conditioning agent is added, the pH value of regulator solution is 6.5, after stirring, and adds nano-attapulgite, complete to dispersion with the speed high-speed stirred of 2000rpm/min, obtain the nano-attapulgite solution of 3mg/L.
(3) nano-attapulgite solution step (2) prepared slowly joins in mixed solution prepared by step (1) with wire, stir with the speed of 800rpm/min, obtain the ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing.
Embodiment 3:
Collect the component in the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing, by weight, comprising:
Sodium lignin sulfonate 25 parts;
Sulfonated castor oil 20 parts;
Fatty acid amine polyoxyethylene ether 30 parts;
Nano-attapulgite 10 parts;
Auxiliary agent 40 parts.
Concrete preparation method is:
(1) in softening deionized water, PH conditioning agent is added, the pH value of regulator solution is 5, stirs stable to the pH value of solution, slowly adds sodium lignin sulfonate, sulfonated castor oil and fatty acid amine polyoxyethylene ether, stir to dissolving completely, froth breaking obtains mixed solution.
(2) in softening deionized water, dispersant and PH conditioning agent is added, the pH value of regulator solution is 5.5, after stirring, and adds nano-attapulgite, complete to dispersion with the speed high-speed stirred of 1800rpm/min, obtain the nano-attapulgite solution of 2.5mg/L.
(3) nano-attapulgite solution step (2) prepared slowly joins in mixed solution prepared by step (1) with wire, stir with the speed of 600rpm/min, obtain the ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing.
Embodiment 4:
Collect the component in the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing, by weight, comprising:
Sodium lignin sulfonate 20 parts;
Sulfonated castor oil 15 parts;
Fatty acid amine polyoxyethylene ether 25 parts;
Nano-attapulgite 5 parts;
Auxiliary agent 25 parts.
Concrete preparation method is:
(1) in softening deionized water, PH conditioning agent is added, the pH value of regulator solution is 6, stirs stable to the pH value of solution, slowly adds sodium lignin sulfonate, sulfonated castor oil and fatty acid amine polyoxyethylene ether, stir to dissolving completely, froth breaking obtains mixed solution.
(2) in softening deionized water, dispersant and PH conditioning agent is added, the pH value of regulator solution is 5.5, after stirring, and adds nano-attapulgite, complete to dispersion with the speed high-speed stirred of 1500rpm/min, obtain the nano-attapulgite solution of 3mg/L.
(3) nano-attapulgite solution step (2) prepared slowly joins in mixed solution prepared by step (1) with wire, stir with the speed of 600rpm/min, obtain the ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing.
Embodiment 5:
Collect the component in the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing, by weight, comprising:
Sodium lignin sulfonate 25 parts;
Sulfonated castor oil 25 parts;
Fatty acid amine polyoxyethylene ether 35 parts;
Nano-attapulgite 20 parts;
Auxiliary agent 30 parts.
Concrete preparation method is:
(1) in softening deionized water, PH conditioning agent is added, the pH value of regulator solution is 6.5, stirs stable to the pH value of solution, slowly adds sodium lignin sulfonate, sulfonated castor oil and fatty acid amine polyoxyethylene ether, stir to dissolving completely, froth breaking obtains mixed solution.
(2) in softening deionized water, dispersant and PH conditioning agent is added, the pH value of regulator solution is 6, after stirring, and adds nano-attapulgite, complete to dispersion with the speed high-speed stirred of 2000rpm/min, obtain the nano-attapulgite solution of 2mg/L.
(3) nano-attapulgite solution step (2) prepared slowly joins in mixed solution prepared by step (1) with wire, stir with the speed of 750rpm/min, obtain the ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing.
Embodiment 6:
Collect the component in the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing, by weight, comprising:
Sodium lignin sulfonate 30 parts;
Sulfonated castor oil 15 parts;
Fatty acid amine polyoxyethylene ether 30 parts;
Nano-attapulgite 25 parts;
Auxiliary agent 30 parts.
Concrete preparation method is:
(1) in softening deionized water, PH conditioning agent is added, the pH value of regulator solution is 6.5, stirs stable to the pH value of solution, slowly adds sodium lignin sulfonate, sulfonated castor oil and fatty acid amine polyoxyethylene ether, stir to dissolving completely, froth breaking obtains mixed solution.
(2) in softening deionized water, dispersant and PH conditioning agent is added, the pH value of regulator solution is 5.5, after stirring, and adds nano-attapulgite, complete to dispersion with the speed high-speed stirred of 1800rpm/min, obtain the nano-attapulgite solution of 2.4mg/L.
(3) nano-attapulgite solution step (2) prepared slowly joins in mixed solution prepared by step (1) with wire, stir with the speed of 800rpm/min, obtain the ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing.
The ACID DYES levelling agent of the hyperchromic fixation one of the collection level dyeing prepared by embodiment 1-6 is used in the dyeing of wool, silk and polyamide fibre, and the result obtaining K/S value, aberration, level-dyeing property and colorfastness to rubbing is after testing as follows:
Woolen dyed result:
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6
K/S value 6.3 6.0 6.1 6.1 6.2 6.3
Aberration 3.0 3.1 3.2 3.2 3.0 3.1
Level-dyeing property 0.02 0.015 0.02 0.016 0.019 0.017
Colorfastness to rubbing 5 4-5 4-5 5 5 4-5
Dyeing silk result:
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6
K/S value 6.4 6.1 6.2 6.2 6.3 6.1
Aberration 2.9 3.3 3.1 3.0 3.2 3.0
Level-dyeing property 0.03 0.021 0.2.4 0.025 0.026 0.021
Colorfastness to rubbing 4-5 5 4-5 5 4-5 4-5
Nylon dyeing result:
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6
K/S value 6.2 5.7 6.0 5.8 5.9 6.2
Aberration 3.4 2.0 3.1 3.0 3.2 3.1
Level-dyeing property 0.03 0.02 0.03 0.02 0.03 0.03
Colorfastness to rubbing 4-5 4-5 5 4-5 4-5 5
As seen from the above table, the ACID DYES levelling agent of collection level dyeing hyperchromic fixation one prepared by the present invention is all good to the Color of wool, silk and polyamide fibre, and possess level dyeing, fixation, the hyperchromic effect be integrated, three's effects equalizer, is conducive to marketing.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.

Claims (10)

1. one kind collects the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing, it is characterized in that, the described hyperchromic fixation of the level dyeing ACID DYES levelling agent integrally that integrates is as both sexes compound surfactant, described both sexes compound surfactant comprises anion surfactant, weak cation surfactant and high molecular polymer, described anion surfactant is sodium lignin sulfonate and sulfonated castor oil, described weak cation surfactant is fatty acid amine polyoxyethylene ether, and described high molecular polymer comprises nano-attapulgite.
2. a kind of ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing according to claim 1, is characterized in that, the component in the ACID DYES levelling agent of the hyperchromic fixation one of described collection level dyeing, by weight, comprising:
Sodium lignin sulfonate 10-30 part;
Sulfonated castor oil 15-30 part;
Fatty acid amine polyoxyethylene ether 20-40 part;
Nano-attapulgite 5-25 part;
Auxiliary agent 20-50 part.
3. a kind of ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing according to claim 2, is characterized in that, the component in the ACID DYES levelling agent of the hyperchromic fixation one of described collection level dyeing, by weight, comprising:
Sodium lignin sulfonate 20-30 part;
Sulfonated castor oil 15-25 part;
Fatty acid amine polyoxyethylene ether 25-40 part;
Nano-attapulgite 5-20 part;
Auxiliary agent 25-50 part.
4. a kind of ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing according to Claims 2 or 3, it is characterized in that, described auxiliary agent comprises PH conditioning agent, dispersant and solvent.
5. collect a preparation method for the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing, it is characterized in that: comprise the following steps:
(1) in solvent, add PH conditioning agent, stir stable to the pH value of solution, slowly add sodium lignin sulfonate, sulfonated castor oil and fatty acid amine polyoxyethylene ether, stir to dissolving completely, froth breaking obtains mixed solution;
(2) in solvent, add dispersant and PH conditioning agent, the pH value of regulator solution, after stirring, add nano-attapulgite, high-speed stirred is complete to dispersion, obtains nano-attapulgite solution;
(3) nano-attapulgite solution step (2) prepared slowly joins in mixed solution prepared by step (1) with wire, stirs, and obtains the ACID DYES levelling agent collecting the hyperchromic fixation one of level dyeing.
6. a kind of preparation method collecting the ACID DYES levelling agent of level dyeing hyperchromic fixation one according to claim 5, is characterized in that: in described step (1) and step (2),
Solvent is softening deionized water.
7. a kind of preparation method collecting the ACID DYES levelling agent of level dyeing hyperchromic fixation one according to claim 5, is characterized in that: in described step (1) and step (2),
The pH value of solution is 4.5-6.5.
8. a kind of preparation method collecting the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing according to claim 5, it is characterized in that: in described step (2), the concentration of nano-attapulgite solution is 2-3mg/L.
9. a kind of preparation method collecting the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing according to claim 5, it is characterized in that: in described step (2), the rotating speed of high-speed stirred is 1500-2000rpm/min.
10. a kind of preparation method collecting the ACID DYES levelling agent of the hyperchromic fixation one of level dyeing according to claim 5, it is characterized in that: in described step (3), the rotating speed of stirring is 500-800rpm/min.
CN201510683006.8A 2015-10-20 2015-10-20 A kind of acid dyes levelling agent for collecting the hyperchromic fixation one of level dyeing and preparation method thereof Active CN105239425B (en)

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CN105926329A (en) * 2016-06-13 2016-09-07 东莞市博科纺织科技有限公司 Acrylic color fixing agent and preparation method thereof
CN106592278A (en) * 2016-12-14 2017-04-26 东莞市博科纺织科技有限公司 Dyeing optimizer and preparation method thereof
CN107142752A (en) * 2017-05-26 2017-09-08 东莞市博科纺织科技有限公司 A kind of acrylic fibers levelling agent and its use technique
CN107268302A (en) * 2017-06-08 2017-10-20 无锡嘉加科技有限公司 A kind of wool polyamide fibre levelling agent and preparation method thereof
CN107268302B (en) * 2017-06-08 2019-11-26 无锡嘉加科技有限公司 A kind of wool polyamide fibre levelling agent and preparation method thereof
CN108058255A (en) * 2017-11-28 2018-05-22 太和县鎏禧木业有限公司 A kind of water-fast bubble wood material colouring method
CN108179639A (en) * 2017-12-19 2018-06-19 江苏新瑞贝科技股份有限公司 A kind of dyeing auxiliaries and preparation method thereof
CN108727900A (en) * 2018-05-22 2018-11-02 江苏日兴纳米材料科技有限公司 A kind of storage stability and the good disperse dye ink and preparation method of redispersibility
CN108727900B (en) * 2018-05-22 2021-09-24 扬州日兴生物科技股份有限公司 Disperse dye ink with good storage stability and redispersibility and preparation method thereof
CN111136743A (en) * 2019-12-13 2020-05-12 阜南佳利工艺品股份有限公司 Treatment method for improving wood dyeing stability
CN111136743B (en) * 2019-12-13 2021-05-25 阜南佳利工艺品股份有限公司 Treatment method for improving wood dyeing stability
CN113463415A (en) * 2021-07-23 2021-10-01 清远瑞华助剂有限公司 Acid dye dyeing auxiliary and preparation method thereof

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