CN111304935B - Ink-jet printing colorant based on vat dye and preparation method thereof - Google Patents
Ink-jet printing colorant based on vat dye and preparation method thereof Download PDFInfo
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- CN111304935B CN111304935B CN202010294003.6A CN202010294003A CN111304935B CN 111304935 B CN111304935 B CN 111304935B CN 202010294003 A CN202010294003 A CN 202010294003A CN 111304935 B CN111304935 B CN 111304935B
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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
- D06P1/22—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 vat dyestuffs including indigo
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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
- D06P1/46—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 natural macromolecular substances or derivatives thereof
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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
- D06P1/62—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 with sulfate, sulfonate, sulfenic or sulfinic groups
- D06P1/621—Compounds without nitrogen
- D06P1/622—Sulfonic acids or their salts
- D06P1/625—Aromatic
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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
- D06P1/64—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
- D06P1/65118—Compounds containing hydroxyl groups
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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
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
- D06P1/67366—Phosphates or polyphosphates
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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
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/6025—Natural or regenerated cellulose using vat or sulfur dyes
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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
- D06P5/30—Ink jet printing
Abstract
The invention belongs to the technical field of textile printing and dyeing, and particularly relates to an ink-jet printing colorant based on vat dyes and a preparation method thereof. An ink-jet printing colorant comprises the following components in parts by weight: 1-30 parts of vat dye; 0-10 parts of a dispersant; 5-50 parts of a viscosity regulator; 0.01-10 parts of a surface tension regulator; 0.1-10 parts of pH regulator; 0.01-2 parts of an antibacterial agent; 10-80 parts of water. The printing process can be carried out by utilizing an ink-jet printing mode, the dyeing effect on cellulose fibers is good, and the comprehensive color fastness performance is excellent.
Description
The application is a divisional application of CN201710618817.9 patent application
Application date: 26/07/2017
Application No.: 201710618817.9
The invention creates the name: ink-jet printing colorant based on vat dye and preparation method thereof
Technical Field
The invention belongs to the technical field of textile printing and dyeing, and particularly relates to an ink-jet printing colorant based on vat dyes and a preparation method thereof.
Background
In recent years, the digital ink-jet printing technology has the advantages of simple production process, strong color expression, high printing precision, low environmental protection cost and the like, and is more and more widely applied to the textile printing and dyeing industry. With the digital ink-jet printing technology becoming an important new type of textile printing and dyeing processing, the quality requirements of domestic and foreign markets for finished textile products processed by the technology are higher and higher.
The existing finished products for digital ink-jet printing processes of textiles, in particular textiles containing cellulose fibers, use liquid colorants made on the basis of various reactive dyes. However, due to the chemical structure of the reactive dyes and the technical principle of dyeing in combination with textile fibers, the application of the dyes generally has the disadvantages of low comprehensive color fastness, poor stability, difficult color control and the like, and the finished products are easy to have problems such as fading, withering of color, rinsing and fading and the like during the use process of consumers. Can not meet the quality requirement of the modern textile consumer market which is sharply increased.
Disclosure of Invention
The invention provides an ink-jet printing colorant for solving the problem of low color fastness of a colorant based on a reactive dye in the prior art, which can be used for printing by an ink-jet printing mode, has a good dyeing effect on cellulose fibers and has excellent comprehensive color fastness performance.
The invention is realized by the following technical scheme:
a vat dye based ink jet printing colorant comprising the following components in parts by weight:
the technical scheme is characterized by further comprising the following components in percentage by weight:
the technical scheme further comprises the following components:
the technical scheme further comprises the following components:
the technical proposal can further solve the problems that the prior art, the vat dye is C.I. vat yellow 13, C.I. vat yellow 33, C.I. vat yellow 46, C.I. vat orange 1, C.I. soluble vat orange 1, C.I. vat orange 11, C.I. soluble vat orange 11, C.I. vat red 1, C.I. soluble vat red 1, C.I. vat red 10, C.I. soluble vat red 10, C.I. vat red 13, C.I. vat red 15, C.I. vat violet 1, C.I. soluble vat violet 1, C.I. vat violet 13, C.I. vat blue 4, C.I. soluble vat blue 4, C.I. vat blue 5, C.I. vat blue 4, C.I. vat blue 5 at least one of c.i. soluble vat blue 5, c.i. vat blue 6, c.i. soluble vat blue 6, c.i. vat blue 20, c.i. vat blue 66, c.i. vat green 1, c.i. soluble vat green 1, c.i. vat green 3, c.i. soluble vat green 3, c.i. vat brown 1, c.i. soluble vat brown 1, c.i. vat brown 33, c.i. vat brown 57, c.i. vat black 9, c.i. vat black 22, c.i. vat black 25, c.i. soluble vat black 25, c.i. vat black 27, c.i. vat black 65.
In the above technical solution, the dispersant is at least one of lignin dispersants, naphthalene sulfonic acid formaldehyde condensation dispersants, styrene maleic anhydride copolymer, and acrylic dispersants.
In the above technical solution, the viscosity modifier is at least one of ethanol, ethylene glycol, diethylene glycol, N-propanol, isopropanol, propylene glycol, glycerol, polyethylene glycol, polypropylene glycol, pentanediol, cyclohexanol, 2-pyrrolidone, N-methyl-2-pyrrolidone, and 1, 3-dimethylimidazolidinone.
In the above technical solution, the surface tension regulator is at least one of sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, cetyl trimethyl ammonium bromide, fluorinated ethylene glycol, ethylene oxide condensed hydrogenated castor oil, polyether modified polysiloxane, aralkyl modified polymethylalkylsiloxane, ethoxylated acetylenic diol, and disodium lauryl sulfosuccinate monoester.
The invention also provides a preparation method of the vat dye-based ink-jet printing colorant, which comprises the steps of mixing the vat dye, a dispersing agent, a viscosity regulator, a surface tension regulator, a pH regulator, an antibacterial agent and water in proportion, and carrying out micron-scale multistage filtration to prepare the ink-jet printing colorant.
According to the technical scheme, the insoluble conventional vat dye is ground into particles with the particle size of below 300 nanometers, then the particles are mixed with other components, and the particles are subjected to multi-stage filtration of 0.5-3 micrometers; mixing the soluble vat dye with other components, fully dissolving, and performing multi-stage filtration of 0.1-3 microns.
Vat dyes are an ancient dye, which is mainly used for dyeing cellulose fibers and blended fabrics thereof, and also can be used for dyeing vinylon in synthetic fibers. The vat dyes are classified into soluble vat dyes and conventional vat dyes according to their water solubility. The dyeing mechanism is as follows: the conventional vat dye is reduced into a water-soluble leuco body under the conditions of a reducing agent and alkalinity, the leuco body enters the dyed fiber, and the water-insoluble dye is recovered through oxidation treatment so as to be fixed inside the fiber, and finally the fiber is colored. The soluble vat dyes can be directly oxidized and developed on the fiber without being reduced. Due to the dyeing mechanism, the fabric is generally dyed by dip dyeing, jig dyeing or pad dyeing processes. These printing and dyeing processes are extensive, high in energy consumption, high in waste water, low in pattern fineness, poor in color expression and low in production efficiency.
With the progress of printing and dyeing technology, ink jet printing (digital printing) technology appears, and as the ink jet printing has the advantages of low energy consumption, accurate dye consumption, high pattern fineness and high production efficiency, the defects of the traditional process adopting vat dyes are more prominent. Therefore, vat dyes are gradually faded out and replaced by reactive dyes, acid dyes and disperse dyes, the application range and the use amount of the vat dyes are less and less, the research on the vat dyes is less and less, and the technical research on the vat dyes is almost stopped. At present, the use of vat dyes is very rare, apart from the use of vat dyes in the military sector (mainly with regard to the infrared protection effect). Due to the characteristics of vat dyes, environmental protection, and technological development, people still know the vat dyes in the traditional process stage.
At present, reactive dyes, disperse dyes, acid dyes and the like are generally adopted for ink-jet printing. The most common reactive dyes used in cellulose fibers are also called reactive dyes, and have one or more reactive groups in the molecular structure, which can chemically react with the fibers under appropriate conditions to form covalent bonds. The reactive dye generally has the defects of low comprehensive color fastness, poor stability, difficult color control and the like due to the chemical structure of the reactive dye and the technical principle of dyeing by combining the reactive dye with textile fibers. The vat dye has good comprehensive color fastness, especially outstanding fastness to light and washing, the fastness to light of many varieties is above grade 6, which is not achieved by active dye, and simultaneously, part of vat dye varieties have infrared-proof effect and are not achieved by active dye. Therefore, the vat dye can be used for preparing the ink-jet printing ink, so that the problems of the traditional process can be overcome, and the defects of the reactive dye can be compensated.
The present invention innovatively uses vat dyes for inkjet printing technology. In the implementation process of the invention, the discovery shows that many types of vat dyes are insoluble or slightly soluble in water, and can only exist in a microparticle suspension state in a finished liquid colorant product, and the higher the solid content is, the uniformity and stability of the liquid colorant can not be guaranteed, so the color concentration is difficult to improve, and the color concentration of the finished liquid colorant product can be greatly improved by using the soluble vat dyes or matching the soluble vat dyes with the vat dyes. And the introduction of the soluble vat dye can simplify or cancel the reduction process, so that the subsequent process of ink-jet printing is simpler.
A liquid coloring agent prepared from the vat dye with poor water solubility is easy to stratify after being placed for a long time, and the preferable polyalcohol is used as a viscosity regulator, so that the liquid has good stability, the stratified deterioration condition is not easy to occur after being placed for a long time, and the moisture retention is also greatly improved. The viscosity regulator such as pyrrolidone can be used, so that the rheological effect of the product is better and outstanding, and the requirements of ink jet nozzle printing with higher working frequency can be better met.
The invention has the beneficial effects that:
(1) Because the vat dye is innovatively used for preparing the liquid colorant for the digital ink-jet printing, the liquid colorant has complete color spectrum, wide color gamut, various single intermediate color varieties, and is easier to realize and reproduce when sensitive colors such as beige, olive green, gray, brown and the like are matched. Tests are carried out according to different combinations, 50-90% of the standard sRGB color gamut can be realized, and the method is very suitable for digital ink-jet printing.
(2) The ink-jet printed cloth processed by the liquid colorant has the advantages of excellent fastness characteristic, high color fastness, good processing and taking fastness, repeated washing resistance, boiling fastness and fastness, chlorine bleaching resistance or oxygen bleaching resistance, and the performance of the ink-jet printed cloth is far superior to that of the traditional digital ink-jet printed products based on reactive dyes.
(3) The productivity is improved: because the dye-uptake fixation time required by vat dye type digital ink-jet printing is very short, is only one tenth of that of the traditional reactive dye type dye-uptake, generally is less than 60 seconds, the whole production efficiency can be greatly improved, and the production capacity of the whole printing production line can reach 25-120 m/min by matching with a high-speed digital ink-jet printing machine.
(4) The product has good universality, and specific products with different colors and different physical parameter states are respectively prepared by changing the types, components and proportions of the dye and the additive, and are respectively adapted to the working requirements of various different types and models of ink-jet printing heads, different models of ink-jet printers and various color requirements, so that the aim of normally carrying out ink-jet printing is fulfilled.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
A vat dye-based ink jet printing colorant is composed of a vat dye, a dispersant, a viscosity modifier, a surface tension modifier, a pH modifier, an antimicrobial agent and water. The vat dye is a soluble vat dye and/or a non-soluble conventional vat dye, including but not limited to the following classes:
the dispersant is at least one of lignin dispersant, naphthalene sulfonic acid formaldehyde condensation dispersant, styrene maleic anhydride copolymer and acrylic dispersant.
The viscosity regulator is at least one of ethanol, ethylene glycol, diethylene glycol, N-propanol, isopropanol, propylene glycol, glycerol, polyethylene glycol, polypropylene glycol, pentanediol, cyclohexanol, 2-pyrrolidone, N-methyl-2-pyrrolidone, and 1, 3-dimethylimidazolidinone.
The surface tension regulator is at least one of sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, hexadecyl trimethyl ammonium bromide, fluorinated ethanol ethylene glycol, ethylene oxide condensed hydrogenated castor oil, polyether modified polysiloxane, aralkyl modified polymethylalkyl siloxane, ethoxy alkynediol and lauryl sulfonated monoester disodium succinate.
The pH regulator is at least one of acetic acid, citric acid, disodium hydrogen phosphate, sodium dihydrogen phosphate, sodium hydroxide, sodium carbonate, diethanolamine, and triethanolamine.
The antibacterial agent is at least one of isothiazolinone, 1,3, 5-trihydroxyethyl s-triazine, methylene bis thiocyanate, 2-dibromo-cyanoacetamide.
The following examples are only for describing the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should be made within the scope of the present invention defined by the claims without departing from the spirit of the present invention.
Example 1
The composition comprises the following components in parts by weight:
the preparation method comprises the following steps: firstly, grinding the C.I. vat yellow 46 to prepare microparticles with the diameter of about 100-300 nanometers, then uniformly mixing the microparticles with the other components in proportion, and filtering the mixture by a grade of about 0.5 micrometer to prepare the vat dye-based digital ink-jet printing liquid composition colorant.
The index states of the finished product are as follows: dyeing strength: 98-102% as standard; pH value: 7.0-9.0; kinematic viscosity: 3.5-4.0 MPAS; surface tension: 30mN/m; conductivity: <10mS/cm; fluidity: filtering with 1 micrometer filter paper to obtain filtrate with volume of more than 200ml per minute; the method can be suitable for Epson micro-piezoelectric nozzles.
The two polyols are compounded, so that the system stability is good, and the two surfactants are compounded, so that the dynamic surface tension is more stable.
Example 2
The coating comprises the following components in parts by weight:
the preparation method comprises the following steps: firstly, grinding and processing the C.I. vat blue 4 and the C.I. vat blue 6 respectively to prepare microparticles with the diameter of about 100-300 nanometers, then uniformly mixing the microparticles with the other components in proportion, and filtering the microparticles at the level of about 0.5 micrometer to prepare the vat dye-based digital ink-jet printing liquid composition colorant.
The index state of the finished product is as follows
The index states of the finished product are as follows: dyeing strength: 98-102% as standard; pH value: 7.0-9.0; kinematic viscosity: 3.5-4.0 MPAS; surface tension: 31mN/m; conductivity: <10mS/cm; fluidity: filtering with 1 micrometer filter paper to obtain filtrate with volume of more than 200ml per minute; the method can be suitable for Epson micro-piezoelectric nozzles.
Two blue conventional vat dyes are used for color matching and compounding, so that the finished colorant is more prominent in color and easy to reproduce. Two different types of dispersants are compounded, so that the system stability under the condition of high solid content is improved.
Example 3
The coating comprises the following components in parts by weight:
the preparation method comprises the following steps: firstly, grinding the C.I. vat blue 20 and the C.I. vat green 1 respectively to prepare microparticles with the diameter of about 100-300 nanometers, then uniformly mixing the microparticles with the other components in proportion, and filtering the microparticles at the level of about 0.5 micrometer to prepare the vat dye-based digital ink-jet printing liquid composition colorant.
The index states of the finished product are as follows: dyeing strength: 98-102% as standard; pH value: 7.0-9.0; kinematic viscosity: 7-7.5 MPAS; surface tension: 34mN/m; conductivity: <10mS/cm; fluidity: filtering with 1 micrometer filter paper to obtain filtrate with volume of more than 200ml per minute; can be suitable for a Kyocera micro-piezoelectric nozzle.
The polyethylene glycol and the glycerol are compounded, high viscosity and good moisture retention are simultaneously considered, and the acetylene glycol surfactant is matched, so that the defoaming agent has certain defoaming property and is suitable for high-frequency industrial inkjet printing nozzle clusters.
Example 4
The coating comprises the following components in parts by weight:
the preparation method comprises the following steps: firstly, grinding C.I. vat green 1, C.I. vat brown 1 and C.I. vat black 25 respectively to prepare microparticles with the diameter of about 100-300 nanometers, then mixing the microparticles with the other components uniformly according to a proportion, and filtering the microparticles by a level of about 0.5 micrometer to prepare the vat dye-based digital ink-jet printing liquid composition colorant.
The index states of the finished product are as follows: dyeing strength: 98-102% as standard; pH value: 7.0-9.0; kinematic viscosity: 8.0-10.0 MPAS; surface tension: 38mN/m; conductivity: <10mS/cm; fluidity: filtering with 1 micrometer filter paper to obtain filtrate with volume of more than 200ml per minute; can be suitable for RICHO micro-pressure electric spray heads.
Two dispersants are compounded, so that the system stability under higher solid content is realized, and the acrylic dispersant can ensure that the final coloring effect of the black 25 dye is better and the color is more deep.
Example 5
The composition comprises the following components in parts by weight:
the preparation method comprises the following steps: and uniformly mixing the C.I. soluble vat red 1 and the other components in proportion, and filtering the mixture by a grade of about 0.2 micrometer to prepare the vat dye-based digital ink-jet printing liquid composition colorant.
The index states of the finished product are as follows: dyeing strength: 98-102% as standard; pH value: 7.0-9.0; kinematic viscosity: 9.0-10.0 MPAS; surface tension: 38mN/m; conductivity: <10mS/cm; fluidity: filtering with 1 micrometer filter paper to obtain filtrate with volume of more than 200ml per minute; can be suitable for a Dimatix Starfire micro-piezoelectric nozzle.
The ink is completely prepared from water-soluble materials, has no solid, has better ink-jet printing smoothness, and has simpler color fixing process after printing.
Example 6
The composition comprises the following components in parts by weight:
the preparation method comprises the following steps: firstly, grinding the C.I. vat violet 13 to prepare microparticles with the diameter of about 100-300 nanometers, then uniformly mixing the microparticles with the C.I. soluble vat green 3 and the C.I. soluble vat violet 1 and the other components according to a proportion, and filtering the mixture by a grade of about 0.5 micrometer to prepare the vat dye-based digital ink-jet printing liquid composition colorant.
The index states of the finished product are as follows: dyeing strength: 98-102% as standard; pH value: 7.0-9.0; kinematic viscosity: 8.0-9.0MPAS; surface tension: 36mN/m; conductivity: <10mS/cm; fluidity: filtering with 1 micrometer filter paper to obtain filtrate with volume of more than 200ml per minute; can be suitable for a Dimatix Samba micro-piezoelectric spray head.
The non-soluble conventional vat dye and the soluble vat dye are combined for use, so that the color concentration of the finished ink is well improved, the ink consumption in the ink-jet printing process can be further reduced, and the ink is more economic and environment-friendly.
The application comprises the following steps:
the ink jet printing colorants prepared in examples 1-4 were ink jet printed using the following process:
sizing and drying the pure cotton fabric; printing the colorant on the fabric by using a computer to control an ink-jet printer so as to draw a required pattern and color; drying the fabric; reduction; steaming at 105 ℃ for 25s; washing with water; oxidizing; and (6) finishing.
The ink jet printing colorants prepared in examples 5-6 were ink jet printed using the following process:
sizing and drying a chinlon/cotton (20/80) fabric; printing the colorant on the fabric by using a computer to control an ink-jet printer so as to draw a required pattern and color; drying the fabric; steaming at 105 ℃ for 25s; washing with water; oxidizing; and (6) finishing.
Because the dye-uptake fixation time required by the vat dye type ink-jet printing colorant is very short, is only one tenth of that of the traditional reactive dye type dye-uptake, is generally less than 60 seconds, the overall production efficiency can be greatly improved, and the production capacity of the overall printing production line can reach 25-120 m/min by matching with a high-speed digital ink-jet printing machine.
The ink-jet printed cloth processed by the product has high color fastness, good processing and taking fastness, repeated washing resistance, steaming and boiling fastness resistance and performance far superior to that of the traditional digital ink-jet printed cloth based on reactive dyes, and is shown in table 1.
TABLE 1
Item | Detection method | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 |
Color fastness to sunlight | ISO 105/B02 | 7 | 7-8 | 7-8 | 7-8 | 7 | 7-8 |
Fastness to washing | ISO 105/C04 | 5 | 5 | 5 | 5 | 5 | 5 |
Fastness to mercerization | ISO 105/X04 | 5 | 5 | 5 | 5 | 4-5 | 5 |
Fastness to ironing | ISO 105/X11 | 4 | 4 | 4-5 | 4-5 | 5 | 5 |
Fastness to chlorine bleach | ISO 105/N01 | 4-5 | 4 | 4-5 | 4-5 | 4-5 | 4-5 |
Fastness to oxygen bleaching | ISO 105/N02 | 5 | 5 | 5 | 5 | 5 | 5 |
Claims (10)
1. A vat dye based ink jet printing colorant comprising the following components in parts by weight:
the non-soluble vat dye is at least one of C.I. vat yellow 13, C.I. vat yellow 33, C.I. vat yellow 46, C.I. vat orange 1, C.I. vat orange 11, C.I. vat red 1, C.I. vat red 10, C.I. vat red 13, C.I. vat red 15, C.I. vat violet 1, C.I. vat violet 13, C.I. vat blue 4, C.I. vat blue 5, C.I. vat blue 6, C.I. vat blue 20, C.I. vat blue 66, C.I. vat green 1, C.I. vat green 3, C.I. vat brown 1, C.I. vat brown 33, C.I. vat brown 57, C.I. vat black 9, C.I. vat black 22, C.I. vat black 25, C.I. vat black 27 and C.I. vat black 65;
the dispersant is at least one of lignin dispersant, naphthalene sulfonic acid formaldehyde condensation dispersant, styrene maleic anhydride copolymer and acrylic dispersant;
the viscosity regulator is at least one of ethanol, ethylene glycol, diethylene glycol, N-propanol, isopropanol, propylene glycol, glycerol, polyethylene glycol, polypropylene glycol, pentanediol, cyclohexanol, 2-pyrrolidone, N-methyl-2-pyrrolidone, and 1, 3-dimethylimidazolidinone;
the surface tension regulator is at least one of sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, hexadecyl trimethyl ammonium bromide, fluorinated ethanol ethylene glycol, ethylene oxide condensed hydrogenated castor oil, polyether modified polysiloxane, aralkyl modified polymethyl alkyl siloxane, ethyoxyl alkynediol and lauryl sulfonated succinic acid monoester disodium.
2. A vat dye based ink jet printing colorant according to claim 1, wherein said viscosity modifier is formulated using two polyols.
3. A vat dye based ink jet printing colorant according to claim 1, wherein said surface tension modifier is formulated using two surfactants.
4. A process for preparing a vat dye based ink jet printing colorant according to any one of claims 1 to 3 wherein the vat dye is mixed with a dispersant, a viscosity modifier, a surface tension modifier, a pH modifier, an antimicrobial agent and water in proportions and subjected to micron scale multi-stage filtration to produce the ink jet printing colorant.
5. The method of claim 4, wherein the ink-jet printing colorant is prepared by grinding a non-soluble conventional vat dye to form particles having a size of nanometer order, mixing the particles with other components in a ratio, and filtering the mixture on a micron scale.
6. The method of claim 5, wherein the inkjet printing colorant is prepared by grinding a non-soluble conventional vat dye into particles having a particle size of 300 nm or less, mixing the particles with other components, and subjecting the mixture to multi-stage filtration of 0.5 to 3 μm.
7. The method of claim 6, wherein the ink jet printing colorant is prepared by milling a non-soluble conventional vat dye to form particles having a particle size of 100 to 300 nm, mixing the milled particles with other components in a ratio, and filtering the mixture through a 0.5 μm filter.
8. A vat dye based ink jet printing colorant ink jet printing method according to any one of claims 1 to 3, comprising the steps of:
sizing and drying the pure cotton fabric;
printing the colorant on the fabric by using a computer to control an ink-jet printer so as to draw a required pattern and color;
drying the fabric;
reduction;
steaming;
washing with water;
oxidizing;
and (6) finishing.
9. A vat dye based ink jet printing colorant ink jet printing method according to claim 8, wherein said steaming step is: steaming at 105 ℃.
10. A method of vat dye based ink jet printing colorant ink jet printing according to claim 9 wherein said steaming step comprises: steaming at 105 ℃ for 25s.
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CN111138909A (en) * | 2018-11-05 | 2020-05-12 | 山东如意数码科技印染有限公司 | Pure cotton infrared-proof fabric digital printing ink combination and method |
CN111841437B (en) * | 2020-07-10 | 2022-01-28 | 贵州省材料产业技术研究院 | Amphoteric surfactant containing quaternary ammonium salt and preparation method and application thereof |
CN113354986A (en) * | 2021-06-28 | 2021-09-07 | 青岛英杰泰新材料有限公司 | Navy blue colorant for ink-jet printing and preparation method thereof |
CN113637336A (en) * | 2021-07-30 | 2021-11-12 | 安徽融创化工科技股份有限公司 | Preparation method of reduced VB blue-RS |
CN114836079B (en) * | 2022-03-17 | 2023-10-03 | 福建赛孔雀新材料科技有限公司 | High-permeability direct-injection advertising color paste, ink and preparation method thereof |
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