CN114059365A - Dye composition for digital printing - Google Patents

Dye composition for digital printing Download PDF

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Publication number
CN114059365A
CN114059365A CN202111588608.7A CN202111588608A CN114059365A CN 114059365 A CN114059365 A CN 114059365A CN 202111588608 A CN202111588608 A CN 202111588608A CN 114059365 A CN114059365 A CN 114059365A
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composition
agent
composite
acid
dye
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CN202111588608.7A
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Inventor
苏勇志
杨泽辉
江启明
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Jiangsu Dewang Digital Technology Co ltd
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Jiangsu Dewang Digital Technology Co ltd
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Priority to CN202111588608.7A priority Critical patent/CN114059365A/en
Publication of CN114059365A publication Critical patent/CN114059365A/en
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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
    • D06P1/39—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 acid dyes
    • 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
    • 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
    • D06P1/52—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 using compositions containing synthetic macromolecular substances
    • D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • D06P1/525—Polymers of unsaturated carboxylic acids or functional derivatives thereof
    • 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
    • D06P1/64—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 using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/651—Compounds without nitrogen
    • D06P1/65106—Oxygen-containing compounds
    • D06P1/65125—Compounds containing ester groups
    • 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
    • D06P1/64—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 using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/651—Compounds without nitrogen
    • D06P1/6515—Hydrocarbons
    • D06P1/65162—Hydrocarbons without halogen
    • 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
    • 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
    • D06P5/30—Ink jet printing

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coloring (AREA)

Abstract

The invention discloses a dye composition for digital printing, and particularly relates to the field of digital printing, wherein the dye composition comprises the following components in percentage by mass: 30-50% of acid dye composition, 10-15% of composite cross-linking composition, 5-12% of composite dispersing composition, 3-5% of auxiliary agent composition and the balance of deionized water. According to the invention, through the mutual combination and final compounding of the composite crosslinking composition and the main crosslinking agent, the sub-crosslinking agent, the crosslinking assistant, the main dispersing agent and the auxiliary dispersing agent in the composite dispersing composition, the flowing and dissolving of the acid dye are promoted, so that the activity of dye molecules is improved, the interactive flowing of the solution during printing is facilitated, the attraction force is formed among a plurality of dye molecules after printing, the tension of the dye on the surface of the fabric is preliminarily improved, and meanwhile, through the matching use of the composite crosslinking composition, a net-shaped structure film can be formed among the dyes.

Description

Dye composition for digital printing
Technical Field
The invention relates to the technical field of digital printing, in particular to a dye composition for digital printing.
Background
Digital printing is printing by using a digital technology, the digital printing technology is a high and new technology product which integrates mechanical and computer electronic information technologies and is gradually formed along with the continuous development of a computer technology, the appearance and the continuous perfection of the technology bring a brand new concept to the textile printing and dyeing industry, and the advanced production principle and means of the technology bring an unprecedented development opportunity to the textile printing and dyeing industry.
The production process of the printing is realized by various digital means such as: the method comprises the steps of inputting various digital patterns processed by scanning, digital photos, images or a computer into a computer, processing by a computer color separation printing system, directly spraying and printing various special dyes (active, dispersed and acidic main paints) on various fabrics or other media by a spraying and printing system through special software, and processing to obtain various required high-precision printed products on various textile fabrics, wherein the acid dye printing is one of the dyes, the traditional dye easily causes dye shedding after printing due to more and non-uniform particles in the dye during printing, and relative movement is easily generated among a plurality of dye molecules to cause printing errors, so that the dye composition for digital printing is provided.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a dye composition for digital printing, and the technical problems to be solved by the present invention are: the color fixing rate and the water washing resistance of the surface of the printed fabric are improved.
In order to achieve the purpose, the invention provides the following technical scheme: the dye composition for digital printing comprises the following components in percentage by mass: 30-50% of acid dye composition, 10-15% of composite cross-linking composition, 5-12% of composite dispersing composition, 3-5% of auxiliary agent composition and the balance of deionized water;
the acid dye composition is as follows:
(1) 72% -82% of biological enzyme
(2) 12 to 22 percent of macromolecular compound with epoxy group;
the biological enzyme is one of pectinase, lipase, protease and cellulase;
the high molecular compound with the epoxy group is one of glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin and alicyclic epoxy resin;
the composite crosslinking composition is:
(1) 70 to 80 percent of main cross-linking agent
(2) 10 to 15 percent of crosslinking agent
(3) 6 to 15 percent of crosslinking assistant;
the main cross-linking agent is one of acrylic acid and methacrylic acid,
the sub-crosslinking agent is one of acrylic acid, acrylate or styrene;
the composite dispersion composition is:
(1) main dispersing agent
(2) And a dispersion aid;
the main dispersant is one or a mixture of more of maleic anhydride copolymer, polyacrylic acid derivative, polycarboxylate and nonionic water-soluble polymer;
the auxiliary dispersant is white oil;
the auxiliary agent composition is
(1) An active agent
(2) Bactericide
(3) Antistatic agent
(4) Humectant
(5) And a stabilizer.
In a preferred embodiment, the mass ratio of the plurality of agents in the auxiliary composition is respectively 6% -15%, 10% -15%, 17% -35%, 20% -35% and 2% -3%.
In a preferred embodiment, the stabilizer is a mixture of one or more of acrylamide, aminotrimethylenephosphonic acid, hydroxyethylidene diphosphonic acid, sodium ethylenediaminetetramethylidene phosphonate, ethylenediaminetetramethylidene phosphonic acid, diethylenetriaminepentamethylenephosphonic acid, 2-hydroxyphosphonoacetic acid, hexamethylenediaminetetramethylidene phosphonic acid.
In a preferred embodiment, the bactericide is a mixture of at least two of sulfur powder, lime sulphur, copper sulfate, amobam, sodium diformate, ziram, pyrifenozin, edifenphos and fosetyl-aluminium.
In a preferred embodiment, the composite dispersion composition is a mixture of a primary dispersant and a dispersion aid in a mass ratio of 9: 1.
In a preferred embodiment, the crosslinking assistant is one of a urea-formaldehyde resin-based crosslinking agent, an epoxy compound crosslinking agent, an ethyleneimine-type crosslinking agent, and an acrylamide-type crosslinking agent.
In a preferred embodiment, the antistatic agent is ethoxylated lauryl tyramine.
The invention provides a preparation method of a dye composition for digital printing, which comprises the following preparation steps:
s1), fractional mixing of raw materials
S11), mixing the biological enzyme and the high molecular compound with epoxy group in the acid dye composition according to a certain mass ratio;
s12), mixing the main cross-linking agent, the sub-cross-linking agent and the cross-linking auxiliary agent in the composite cross-linking composition according to a certain mass ratio;
s13), mixing the main dispersant and the auxiliary dispersant in the composite dispersion composition according to a certain mass ratio;
s2), final mixing of raw materials
S21), mixing the solutions obtained in the steps S11), S12) and S13) according to a certain mass ratio;
s22) and S21) are mixed and stirred by a mixing stirrer, wherein the stirring speed is 3700100-;
s23), standing the mixed solution obtained in the step S22) to room temperature, and entering the step S3);
s3), filtering
S31), filtering the solution in the step S23) by a filter membrane;
s32), the filtering membranes in the step S31) are multiple, the multiple filtering membranes are sequentially arranged from top to bottom, and the aperture of each filtering membrane is gradually reduced from top to bottom;
s33), and the pore diameter of the filtering membrane in the step S32) is less than or equal to 0.56 mu m.
The invention has the technical effects and advantages that:
according to the invention, through the mutual combination and final compounding of the composite crosslinking composition and the main crosslinking agent, the sub-crosslinking agent, the crosslinking auxiliary agent, the main dispersing agent and the auxiliary dispersing agent in the composite dispersing composition, the flowing and dissolving of the acid dye are promoted, so that the activity of dye molecules is improved, the interactive flowing of the solution during printing is facilitated, the attraction force is formed among a plurality of dye molecules after printing, the tension of the dye on the surface of the fabric is preliminarily improved, and meanwhile, through the matched use of the composite crosslinking composition, a net-shaped structure film can be formed among the dyes, so that the integral strength after printing of the dye is further improved, the dye is not easy to fall off after long-time use, and the effect of water washing resistance is ensured.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention provides a dye composition for digital printing, which comprises the following components in percentage by mass: 30% of acid dye composition, 10% of composite crosslinking composition, 5% of composite dispersing composition, 3% of auxiliary composition and the balance of deionized water;
the acid dye composition comprises:
(1) 72% -82% of biological enzyme
(2) 12 to 22 percent of macromolecular compound with epoxy group;
the biological enzyme is one of pectinase, lipase, protease and cellulase;
the high molecular compound with the epoxy group is one of glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin and alicyclic epoxy resin;
the composite crosslinking composition is:
(1) 70 to 80 percent of main cross-linking agent
(2) 10 to 15 percent of crosslinking agent
(3) 6 to 15 percent of crosslinking assistant;
the main cross-linking agent is one of acrylic acid and methacrylic acid,
the sub-crosslinking agent is one of acrylic acid, acrylate or styrene;
the composite dispersion composition is:
(1) main dispersing agent
(2) And a dispersion aid;
the main dispersant is one or more of maleic anhydride copolymer, polyacrylic acid derivative, polycarboxylate and nonionic water-soluble polymer;
the auxiliary dispersant is white oil;
the auxiliary composition is
(1) 6 to 15 percent of active agent
(2) 10 to 15 percent of bactericide
(3) 17 to 35 percent of antistatic agent
(4) 20 to 35 percent of humectant
(5) 2% -3% of a stabilizer;
the active agent is one or a mixture of more of a sulfonic acid formaldehyde condensate, phenol, formaldehyde, a carbonate condensate and lignosulfonate, the stabilizer is one or a mixture of more of acrylamide, amino trimethylene phosphonic acid, hydroxyethylidene diphosphonic acid, sodium ethylene diamine tetra methylene phosphonic acid, diethylenetriamine penta methylene phosphonic acid, 2-hydroxyphosphonoacetic acid and hexamethylene diamine tetra methylene phosphonic acid, the bactericide is at least two or more of sulfur powder, lime sulfur, copper sulfate, amobam, sodium difenoate, ziram, pyrifenozin, kefenphos and fosetyl aluminum, the composite dispersion composition is a mixture of 9:1 mass ratio of a main dispersant and an auxiliary dispersant, the composite dispersion composition is a mixture of 9:1 mass ratio of the main dispersant and the auxiliary dispersant, and the antistatic agent is ethoxylated lauryl amine.
Example 2:
the invention provides a dye composition for digital printing, which comprises the following components in percentage by mass: 40% of acid dye composition, 13% of composite crosslinking composition, 8% of composite dispersing composition, 4% of auxiliary composition and the balance of deionized water;
the acid dye composition comprises:
(1) 72% -82% of biological enzyme
(2) 12 to 22 percent of macromolecular compound with epoxy group;
the biological enzyme is one of pectinase, lipase, protease and cellulase;
the high molecular compound with the epoxy group is one of glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin and alicyclic epoxy resin;
the composite crosslinking composition is:
(1) 70 to 80 percent of main cross-linking agent
(2) 10 to 15 percent of crosslinking agent
(3) 6 to 15 percent of crosslinking assistant;
the main cross-linking agent is one of acrylic acid and methacrylic acid,
the sub-crosslinking agent is one of acrylic acid, acrylate or styrene;
the composite dispersion composition is:
(1) main dispersing agent
(2) And a dispersion aid;
the main dispersant is one or more of maleic anhydride copolymer, polyacrylic acid derivative, polycarboxylate and nonionic water-soluble polymer;
the auxiliary dispersant is white oil;
the auxiliary composition is
(1) 6 to 15 percent of active agent
(2) 10 to 15 percent of bactericide
(3) 17 to 35 percent of antistatic agent
(4) 20 to 35 percent of humectant
(5) 2% -3% of a stabilizer;
the active agent is one or a mixture of more of a sulfonic acid formaldehyde condensate, phenol, formaldehyde, a carbonate condensate and lignosulfonate, the stabilizer is one or a mixture of more of acrylamide, amino trimethylene phosphonic acid, hydroxyethylidene diphosphonic acid, sodium ethylene diamine tetra methylene phosphonic acid, diethylenetriamine penta methylene phosphonic acid, 2-hydroxyphosphonoacetic acid and hexamethylene diamine tetra methylene phosphonic acid, the bactericide is at least two or more of sulfur powder, lime sulfur, copper sulfate, amobam, sodium difenoate, ziram, pyrifenozin, kefenphos and fosetyl aluminum, the composite dispersion composition is a mixture of 9:1 mass ratio of a main dispersant and an auxiliary dispersant, the composite dispersion composition is a mixture of 9:1 mass ratio of the main dispersant and the auxiliary dispersant, and the antistatic agent is ethoxylated lauryl amine.
Example 3:
the invention provides a dye composition for digital printing, which comprises the following components in percentage by mass: 50% of acid dye composition, 15% of composite crosslinking composition, 12% of composite dispersing composition, 5% of auxiliary composition and the balance of deionized water;
the acid dye composition comprises:
(1) 72% -82% of biological enzyme
(2) 12 to 22 percent of macromolecular compound with epoxy group;
the biological enzyme is one of pectinase, lipase, protease and cellulase;
the high molecular compound with the epoxy group is one of glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin and alicyclic epoxy resin;
the composite crosslinking composition is:
(1) 70 to 80 percent of main cross-linking agent
(2) 10 to 15 percent of crosslinking agent
(3) 6 to 15 percent of crosslinking assistant;
the main cross-linking agent is one of acrylic acid and methacrylic acid,
the sub-crosslinking agent is one of acrylic acid, acrylate or styrene;
the composite dispersion composition is:
(1) main dispersing agent
(2) And a dispersion aid;
the main dispersant is one or more of maleic anhydride copolymer, polyacrylic acid derivative, polycarboxylate and nonionic water-soluble polymer;
the auxiliary dispersant is white oil;
the adjuvant composition obtained in each part is
(1) 6 to 15 percent of active agent
(2) 10 to 15 percent of bactericide
(3) 17 to 35 percent of antistatic agent
(4) 20 to 35 percent of humectant
(5) 2% -3% of a stabilizer;
the active agent is one or a mixture of more of a sulfonic acid formaldehyde condensate, phenol, formaldehyde, a carbonate condensate and lignosulfonate, the stabilizer is one or a mixture of more of acrylamide, amino trimethylene phosphonic acid, hydroxyethylidene diphosphonic acid, sodium ethylene diamine tetra methylene phosphonic acid, diethylenetriamine penta methylene phosphonic acid, 2-hydroxyphosphonoacetic acid and hexamethylene diamine tetra methylene phosphonic acid, the bactericide is at least two or more of sulfur powder, lime sulfur, copper sulfate, amobam, sodium difenoate, ziram, pyrifenozin, kefenphos and fosetyl aluminum, the composite dispersion composition is a mixture of 9:1 mass ratio of a main dispersant and an auxiliary dispersant, the composite dispersion composition is a mixture of 9:1 mass ratio of the main dispersant and the auxiliary dispersant, and the antistatic agent is ethoxylated lauryl amine.
Example 4:
the dye compositions prepared in the above examples 1-3 were respectively taken 10 parts and 30 parts, 1 part was extracted from each 10 parts, 3 parts in each part were divided into one group and 10 groups, the 10 groups of dye compositions were used in 10 different digital printing factories, and after printing, the following data were obtained by detection and index comparison:
Figure BDA0003428399160000091
from the above table, the surface tension, rubbing fastness, viscosity and conductivity of the fabric in example 3 are all in the optimum state;
comparison of the properties after digital printing of example 3 and comparative examples 1-2, the following data were obtained after testing:
Figure BDA0003428399160000092
Figure BDA0003428399160000101
as can be seen from the above table, in example 3, the acid dye composition 50%, the composite cross-linking composition 15%, the composite dispersion composition 12% and the auxiliary composition 5% are properly proportioned, and the dye composition obtained by the specific proportioning promotes the flowing dissolution of the acid dye, so that the activity of the dye molecules is improved, thereby facilitating the interactive flowing of the solution during printing, and also enabling a plurality of dye molecules after printing to mutually form an attraction force, primarily improving the tension of the dye on the surface of the fabric, and simultaneously, through the matching use of the composite cross-linking composition, forming a net-structure film between the dyes, further facilitating the further improvement of the overall strength after printing of the dye, making the dye not easy to fall off after long-term use, and ensuring the effect of water washing resistance.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (8)

1. A dye composition for digital printing, which is characterized in that: the composite material comprises the following components in percentage by mass: 30-50% of acid dye composition, 10-15% of composite cross-linking composition, 5-12% of composite dispersing composition, 3-5% of auxiliary agent composition and the balance of deionized water;
the acid dye composition is as follows:
(1) 72% -82% of biological enzyme
(2) 12 to 22 percent of macromolecular compound with epoxy group;
the biological enzyme is one of pectinase, lipase, protease and cellulase;
the high molecular compound with the epoxy group is one of glycidyl ether epoxy resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin, linear aliphatic epoxy resin and alicyclic epoxy resin;
the composite crosslinking composition is:
(1) 70 to 80 percent of main cross-linking agent
(2) 10 to 15 percent of crosslinking agent
(3) 6 to 15 percent of crosslinking assistant;
the main cross-linking agent is one of acrylic acid and methacrylic acid,
the sub-crosslinking agent is one of acrylic acid, acrylate or styrene;
the composite dispersion composition is:
(1) main dispersing agent
(2) And a dispersion aid;
the main dispersant is one or a mixture of more of maleic anhydride copolymer, polyacrylic acid derivative, polycarboxylate and nonionic water-soluble polymer;
the auxiliary dispersant is white oil;
the auxiliary agent composition is
(1) An active agent
(2) Bactericide
(3) Antistatic agent
(4) Humectant
(5) And a stabilizer.
2. The dye composition for digital printing according to claim 1, wherein: the mass percentages of the various agents in the auxiliary agent composition are respectively 6% -15%, 10% -15%, 17% -35%, 20% -35% and 2% -3%.
3. The dye composition for digital printing according to claim 1, wherein: the stabilizer is one or a mixture of acrylamide, amino trimethylene phosphonic acid, hydroxyethylidene diphosphonic acid, sodium ethylene diamine tetra methylene phosphonic acid, diethylenetriamine penta methylene phosphonic acid, 2-hydroxyphosphonoacetic acid and hexamethylene diamine tetra methylene phosphonic acid.
4. The dye composition for digital printing according to claim 1, wherein: the bactericide is a mixture of at least two or more of sulfur powder, lime sulfur, copper sulfate, amobam, sodium diformate, ziram, pyricularia grisea, kewensan and fosetyl-aluminium.
5. The dye composition for digital printing according to claim 1, wherein: the composite dispersion composition is a mixture of a main dispersant and an auxiliary dispersant in a mass ratio of 9: 1.
6. The dye composition for digital printing according to claim 1, wherein: the crosslinking assistant is one of a urea-formaldehyde resin crosslinking agent, an epoxy compound crosslinking agent, an ethylene imine crosslinking agent and an acrylamide crosslinking agent.
7. The dye composition for digital printing according to claim 1, wherein: the antistatic agent is ethoxy lauryl tyramine.
8. A method for preparing a dye composition for digital printing according to any one of claims 1 to 7, wherein: the preparation method comprises the following preparation steps:
s1), fractional mixing of raw materials
S11), mixing the biological enzyme and the high molecular compound with epoxy group in the acid dye composition according to a certain mass ratio;
s12), mixing the main cross-linking agent, the sub-cross-linking agent and the cross-linking auxiliary agent in the composite cross-linking composition according to a certain mass ratio;
s13), mixing the main dispersant and the auxiliary dispersant in the composite dispersion composition according to a certain mass ratio;
s2), final mixing of raw materials
S21), mixing the solutions obtained in the steps S11), S12) and S13) according to a certain mass ratio;
s22) and S21) are mixed and stirred by a mixing stirrer, wherein the stirring speed is 3700100-;
s23), standing the mixed solution obtained in the step S22) to room temperature, and entering the step S3);
s3), filtering
S31), filtering the solution in the step S23) by a filter membrane;
s32), the filtering membranes in the step S31) are multiple, the multiple filtering membranes are sequentially arranged from top to bottom, and the aperture of each filtering membrane is gradually reduced from top to bottom;
s33), and the pore diameter of the filtering membrane in the step S32) is less than or equal to 0.56 mu m.
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