CN114182545A - Cationic pigment ink and preparation method and application thereof - Google Patents
Cationic pigment ink and preparation method and application thereof Download PDFInfo
- Publication number
- CN114182545A CN114182545A CN202111576680.8A CN202111576680A CN114182545A CN 114182545 A CN114182545 A CN 114182545A CN 202111576680 A CN202111576680 A CN 202111576680A CN 114182545 A CN114182545 A CN 114182545A
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- cationic
- pigment ink
- ink
- dispersant
- chloride
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- 125000002091 cationic group Chemical group 0.000 title claims abstract description 166
- 239000000049 pigment Substances 0.000 title claims abstract description 112
- 238000002360 preparation method Methods 0.000 title abstract description 31
- 239000010985 leather Substances 0.000 claims abstract description 25
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 22
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 22
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 22
- 239000004753 textile Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000002270 dispersing agent Substances 0.000 claims description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 27
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 24
- 239000002518 antifoaming agent Substances 0.000 claims description 22
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 21
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 15
- PUVAFTRIIUSGLK-UHFFFAOYSA-M trimethyl(oxiran-2-ylmethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CC1CO1 PUVAFTRIIUSGLK-UHFFFAOYSA-M 0.000 claims description 15
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 13
- PHTQWCKDNZKARW-UHFFFAOYSA-N isoamylol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 claims description 12
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 12
- 239000003906 humectant Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- -1 alcohol compound Chemical class 0.000 claims description 9
- RRHXZLALVWBDKH-UHFFFAOYSA-M trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium;chloride Chemical compound [Cl-].CC(=C)C(=O)OCC[N+](C)(C)C RRHXZLALVWBDKH-UHFFFAOYSA-M 0.000 claims description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 8
- 229920000570 polyether Polymers 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 229920000191 poly(N-vinyl pyrrolidone) Polymers 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- XPPODKQKBFSUCU-UHFFFAOYSA-M (3-chloro-3-hydroxypropyl)-trimethylazanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCC(O)Cl XPPODKQKBFSUCU-UHFFFAOYSA-M 0.000 claims description 3
- DRHDHWCDRYTDIT-UHFFFAOYSA-M 2,2-dihydroxyethyl(trimethyl)azanium chloride Chemical compound [Cl-].C[N+](C)(C)CC(O)O DRHDHWCDRYTDIT-UHFFFAOYSA-M 0.000 claims description 3
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 3
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 claims description 3
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 claims description 3
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 3
- 229920000136 polysorbate Polymers 0.000 claims description 3
- 229920000053 polysorbate 80 Polymers 0.000 claims description 3
- FZGFBJMPSHGTRQ-UHFFFAOYSA-M trimethyl(2-prop-2-enoyloxyethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCOC(=O)C=C FZGFBJMPSHGTRQ-UHFFFAOYSA-M 0.000 claims description 3
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 claims description 2
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims 2
- 229920001223 polyethylene glycol Polymers 0.000 claims 2
- 238000007639 printing Methods 0.000 abstract description 25
- 238000007641 inkjet printing Methods 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000002245 particle Substances 0.000 abstract description 12
- 239000000853 adhesive Substances 0.000 abstract description 11
- 230000001070 adhesive effect Effects 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 6
- 230000009044 synergistic interaction Effects 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 137
- 239000002994 raw material Substances 0.000 description 29
- 239000000047 product Substances 0.000 description 25
- 239000000463 material Substances 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 13
- 125000000129 anionic group Chemical group 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 238000009472 formulation Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 239000008367 deionised water Substances 0.000 description 9
- 229910021641 deionized water Inorganic materials 0.000 description 9
- 239000000975 dye Substances 0.000 description 9
- 150000001768 cations Chemical class 0.000 description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 7
- 229920002635 polyurethane Polymers 0.000 description 7
- 239000004814 polyurethane Substances 0.000 description 7
- 230000002195 synergetic effect Effects 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 230000000740 bleeding effect Effects 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000003431 cross linking reagent Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- VPKDCDLSJZCGKE-UHFFFAOYSA-N carbodiimide group Chemical group N=C=N VPKDCDLSJZCGKE-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QVOJVKONBAJKMA-UHFFFAOYSA-M triethyl(oxiran-2-ylmethyl)azanium;chloride Chemical compound [Cl-].CC[N+](CC)(CC)CC1CO1 QVOJVKONBAJKMA-UHFFFAOYSA-M 0.000 description 2
- 229920005692 JONCRYL® Polymers 0.000 description 1
- 241001168730 Simo Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000007908 nanoemulsion Substances 0.000 description 1
- 238000003921 particle size analysis Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000003021 water soluble solvent Substances 0.000 description 1
- 238000000733 zeta-potential measurement Methods 0.000 description 1
Classifications
-
- 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
- D06P1/52—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
- D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
- D06P1/5285—Polyurethanes; Polyurea; Polyguanides
-
- 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
-
- 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
- D06P1/655—Compounds containing ammonium groups
- D06P1/66—Compounds containing ammonium groups containing quaternary ammonium 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
- 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
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/32—Material containing basic nitrogen containing amide groups leather skins
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention relates to cationic pigment ink and a preparation method and application thereof. According to the invention, the cationic acrylic resin and the cationic polyurethane resin are selected to be compounded as the adhesive, the particle size is small, the nozzle cannot be blocked, the ink-jet printing smoothness is better, the cationic acrylic resin and the cationic polyurethane resin are matched with each other to realize synergistic interaction, the bonding fastness of the ink and the product is obviously improved, and the printed product has good elasticity and soft hand feeling. The pigment ink provided by the invention belongs to cationic pigment ink, can be directly printed on leather or textiles, does not need pretreatment, has simple process, high ink printing precision, good fastness and good fluency, greatly improves the production efficiency of ink-jet printing, and has good application prospect in digital ink-jet printing of leather and textiles.
Description
Technical Field
The invention belongs to the technical field of digital ink-jet, and relates to cationic pigment ink, a preparation method and application thereof, in particular to cationic pigment ink, a preparation method thereof and application thereof in digital ink-jet of leather or textiles.
Background
The digital ink-jet printing is a novel printing technology, compared with the traditional printing technology, the processes of color separation and draft tracing, sheet making, net making and the like in the production process of the traditional printing are omitted in the production process of the digital ink-jet printing, and the process route is shortened, so that the production time is greatly shortened, the consumption of the net making worker, the net making field and the printing net is reduced, and the proofing cost is also greatly reduced. The digital ink-jet printing can receive patterns through means of compact discs, mails and the like, the proofing time generally does not exceed one working day, and the traditional proofing period is generally about one week. The shortening of the proofing period and the reduction of the cost bring more convenience to the life of people.
At present, the ink used for digital ink-jet printing mainly takes dye ink and pigment ink as main materials. Among them, the dyes in the dye ink are generally water-soluble dyes with low molecular weight, and are easily decomposed under the illumination condition, so that the fading and discoloration of the printed fabric are caused, and the quality of the printed fabric is influenced. And the dye ink has no universality, and fabrics made of different materials can meet the printing requirements only by the dye inks of different types. In addition, the production process of the dye ink is complex, and the problem of environmental pollution also exists. Pigment inks are dispersions of particles having a particle size much larger than the molecular diameter of dye inks, ranging from nanometers to micrometers, with nanoscale pigment inks being transparent liquids and microscale pigment inks generally existing in the form of opaque liquids. The pigment ink has high universality and no post-treatment and water washing processes, so compared with dye ink, the pigment ink has wider application in the field of digital ink-jet printing.
For example, CN110358359A discloses an aqueous digital inkjet printing pigment ink, a preparation method and an application thereof. The ink comprises the following components in percentage by mass: 10.0-25.0% of pigment color paste, 10.0-30.0% of acrylic acid modified waterborne polyurethane composite nano emulsion, 15.0-35.0% of humectant, 0.1-1.0% of dispersant, 1.0-2.0% of pH regulator, 0.3-2.0% of antibacterial agent and the balance of deionized water. The ink has the advantages of good water resistance, excellent cold resistance and chemical resistance and the like, and also has good stability and printing fluency.
CN111117359A discloses a water-based pigment ink for textile and a preparation method thereof, wherein the ink comprises 20-50% of pigment color paste, 5-20% of resin, 0.5-10% of water-based cross-linking agent, 10-30% of water-soluble solvent, 1-10% of auxiliary agent and the balance of water; the connecting group of the resin comprises hydroxyl and carboxyl, the aqueous cross-linking agent has carbodiimide groups, the carbodiimide groups in the aqueous cross-linking agent and the carboxyl or hydroxyl in the connecting group of the resin are subjected to cross-linking reaction to form a highly cross-linked coating on the printing surface, the performances of abrasion resistance, water washing resistance, solvent resistance and the like of a printing pattern are improved under the protection of the coating, the ink is firmer on a fabric, and the adhesive force is enhanced, so that the color fastness of the ink is enhanced, and the aqueous pigment ink is convenient to be industrially applied in the field of digital ink-jet printing.
However, the pigment ink in the prior art is basically anionic ink, most printing substrates such as leather, textiles and paper have negative charges on the surface in the water phase, the anionic ink has negative charges and generates charge repulsion with the printing substrates, the problems of ink bleeding, poor fastness and the like easily occur when the printing substrates are directly printed on the leather or the textiles, the leather or the textiles need to be pretreated in advance, and the process is complicated. In addition, the printed product is hard and has poor hand feeling, and the stability of the pigment ink is also general.
Therefore, how to develop a pigment ink which has good stability, high binding fastness with products, good elasticity of printed products and soft hand feeling becomes a problem which needs to be solved urgently at present in the field.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide cationic pigment ink and a preparation method and application thereof, and particularly provides cationic pigment ink and a preparation method and application thereof in digital ink jet of leather or textiles.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a cationic pigment ink, which comprises a cationic color paste, a cationic acrylic resin, a cationic polyurethane resin and an additive.
The invention creatively provides the cationic pigment ink, and as most of printing base materials such as leather, textiles, paper and the like have negative charges on the surface in the water phase, the cationic pigment ink provided by the invention can ionize positive charges and combine with the negative charges on the surface of the printing base materials to form ionic bonds, thereby obviously improving the adhesive force and washing fastness, avoiding the ink bleeding phenomenon and having high pattern precision. In addition, due to the characteristic that the cationic pigment ink can ionize cations, the cationic pigment ink provided by the invention can be directly printed on base materials such as leather and textiles, and the like, so that the printing base materials do not need to be additionally treated, the production efficiency is improved, and the production cost is saved. According to the invention, the cationic acrylic resin with excellent water solubility and the cationic polyurethane resin are compounded as the adhesive, the particle size is small, a spray head cannot be blocked, the ink-jet printing smoothness is better, the cationic acrylic acid and the cationic polyurethane are matched with each other, the synergistic effect is realized, the defects of 'hot sticking and cold brittleness' of the single acrylic resin and 'hard film forming and poor hand feeling' of the single polyurethane resin are overcome, the bonding fastness of the ink and the product is obviously improved, and meanwhile, the printed product has good elasticity and soft hand feeling.
Preferably, the cationic pigment ink comprises, by weight, 20-30 parts of cationic color paste, 5-10 parts of cationic acrylic resin, 10-20 parts of cationic polyurethane resin and 15-31 parts of an additive.
The preferable range is adopted for proportioning, and particularly, 5-10 parts and 10-20 parts of cationic acrylic acid and cationic polyurethane are respectively adopted for compounding, so that the bonding fastness of the ink and the product is further improved, and the elasticity and the handfeel of the printed product are improved.
Specific examples of the above-mentioned 20 to 30 parts include 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts and the like.
Specific examples of the above-mentioned 5 to 10 parts include 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts and the like.
Specific examples of the above-mentioned 10 to 20 parts include 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts and the like.
Specific examples of the above-mentioned 15 to 31 parts include 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, 31 parts and the like.
Preferably, the additive includes any one or a combination of at least two of a humectant, a dispersant or an antifoaming agent, such as a combination of a dispersant and an antifoaming agent, a combination of a humectant and a dispersant, a combination of a humectant and an antifoaming agent, and the like, in any combination.
Preferably, the cationic pigment ink comprises, by mass, 20-30% of cationic color paste, 5-10% of cationic acrylic resin, 10-20% of cationic polyurethane resin, 15-25% of humectant, 1-5% of dispersant, 0.02-0.05% of defoamer, and the balance of water.
Specific values of 20 to 30% are, for example, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, and the like.
Specific values of 5 to 10% are, for example, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, etc.
Specific values of the above-mentioned 10-20% are, for example, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, etc.
Specific values of 15 to 25% are, for example, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, and the like.
Specific values of 1 to 5% are, for example, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, etc.
Specific values of the above-mentioned 0.02 to 0.05% are, for example, 0.02%, 0.025%, 0.03%, 0.035%, 0.04%, 0.045%, 0.05% and the like.
Preferably, the cationic acrylic resin is a water-soluble cationic acrylic resin.
Preferably, the cationic polyurethane resin is a water-soluble cationic polyurethane resin.
Preferably, the cationic color paste comprises a pigment, an alcohol compound, a cationic dispersant and an antifoaming agent.
Preferably, the cationic color paste comprises, by mass, 10-15% of pigment, 20-30% of alcohol compound, 5-10% of cationic dispersant, 0.05-0.1% of defoaming agent, and the balance of water.
Specific values of 10 to 15% are, for example, 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, etc.
Specific values of 20 to 30% are, for example, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, and the like.
Specific values of 5 to 10% are, for example, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, etc.
Specific values of the above-mentioned 0.05 to 0.1% include, for example, 0.05%, 0.055%, 0.06%, 0.065%, 0.07%, 0.075%, 0.08%, 0.085%, 0.09%, 0.095%, 0.1%, etc.
Preferably, the alcohol compound includes any one or a combination of at least two of ethylene glycol, propylene glycol, glycerol, isobutanol, n-butanol, isoamyl alcohol, diethylene glycol or polyethylene alcohol, for example, a combination of ethylene glycol and propylene glycol, a combination of propylene glycol and glycerol, n-butanol and isoamyl alcohol, and the like, and any other combination may be used.
Preferably, the cationic dispersant includes any one or a combination of at least two of glycidyltrimethylammonium chloride, glycidyltriethylammonium chloride, 3-chloro-hydroxypropyltrimethylammonium chloride, acryloyloxyethyltrimethylammonium chloride, methacryloyloxyethyltrimethylammonium chloride, 2-hydroxyethyl-bistrimethylammonium chloride, dihydroxyethyltrimethylammonium chloride, or hexadecyltrimethylammonium chloride, for example, a combination of glycidyltrimethylammonium chloride and glycidyltriethylammonium chloride, a combination of acryloyloxyethyltrimethylammonium chloride and methacryloyloxyethyltrimethylammonium chloride, a combination of 2-hydroxyethyl-bistrimethylammonium chloride and dihydroxyethyltrimethylammonium chloride, and the like, and any other combination may be used. A combination of methacryloyloxyethyltrimethylammonium chloride and epoxypropyltrimethylammonium chloride is preferred.
Compared with other choices, the cationic dispersant adopts the combination of methacryloyloxyethyl trimethyl ammonium chloride and epoxypropyl trimethyl ammonium chloride, the dispersing effect is better than that of a single dispersant, and the two components have unexpected synergistic effect in the aspect of improving the stability of the pigment ink.
Preferably, the humectant includes any one or a combination of at least two of ethylene glycol, propylene glycol, glycerol, isobutanol, n-butanol, isoamyl alcohol, diethylene glycol or polyethylene alcohol, such as a combination of ethylene glycol and propylene glycol, a combination of propylene glycol and glycerol, n-butanol and isoamyl alcohol, and the like, and any other combination may be used.
Preferably, the dispersant comprises a cationic dispersant and/or a nonionic dispersant, preferably a combination of a cationic dispersant and a nonionic dispersant.
The cationic dispersant and the nonionic dispersant are combined to be used as the composite dispersant, so that the dispersing effect is better, and the prepared pigment ink is better in stability.
Preferably, the mass ratio of the cationic dispersant to the nonionic dispersant is (1-3):1, and specific values in (1-3) are, for example, 1, 1.2, 1.5, 1.7, 2, 2.2, 2.5, 2.7, 3, and the like.
Compared with other proportions, the pigment ink prepared by adopting the mass ratio of (1-3) to (1) to match the cationic dispersant with the nonionic dispersant has better dispersion effect and better stability.
Preferably, the non-ionic dispersant comprises any one of or a combination of at least two of tween 40, tween 60, tween 80, span 40, span 60, span 80, peregal OS-15 or peregal A-20, wherein the combination of at least two of span 80 and peregal OS-15, tween 40 and tween 60, tween 80 and span 40, and the like, and any combination can be adopted.
Preferably, the defoaming agent includes any one of polyether defoaming agent, silicone defoaming agent or polyether modified silicon defoaming agent or a combination of at least two of them, for example, a combination of polyether defoaming agent and silicone defoaming agent, a combination of silicone defoaming agent and polyether modified silicon defoaming agent, a combination of polyether defoaming agent and polyether modified silicon defoaming agent, and the like, and any other combination may be adopted.
In a second aspect, the present invention provides a method for preparing the cationic pigment ink according to the first aspect, wherein the method for preparing the cationic pigment ink comprises mixing the cationic color paste, the cationic acrylic resin, the cationic polyurethane resin and the additive, stirring and filtering to obtain the cationic pigment ink.
Preferably, the preparation method of the cationic pigment ink comprises the following steps:
(1) mixing 5-10% of cationic dispersant, 20-30% of alcohol compound, 10-15% of pigment, 0.05-0.1% of defoaming agent and water in percentage by mass, stirring and dispersing for 10-15min, and transferring to a pin-and-rod sand mill for grinding for 2-3h to obtain cationic color paste;
(2) mixing 20-30% of cationic color paste, 15-25% of humectant, 1-5% of dispersant, 5-10% of cationic acrylic resin, 10-20% of cationic polyurethane resin, 0.02-0.05% of defoamer and water by mass percentage, stirring for 30-60min, and filtering to obtain the pigment.
The filtration is to sequentially filter through 5 μm, 3 μm and 1 μm microporous filter membranes, and the viscosity of the final product is controlled within the range of 3-8 cp.
The specific value of 10-15min is, for example, 10min, 11min, 12min, 13min, 14min, 15min, etc.
Specific values in the above 2 to 3h are, for example, 2h, 2.1h, 2.2h, 2.3h, 2.4h, 2.5h, 2.6h, 2.7h, 2.8h, 2.9h, 3h and the like.
The specific value of 30-60min is 30min, 35min, 40min, 45min, 50min, 55min, 60min, etc.
In a third aspect, the present invention provides a method of preparing a cationic pigment ink according to the first aspect or a cationic pigment ink according to the second aspect for use in digital ink jet printing of leather or textiles.
The recitation of numerical ranges herein includes not only the above-recited values, but also any values between any of the above-recited numerical ranges not recited, and for brevity and clarity, is not intended to be exhaustive of the specific values encompassed within the range.
Compared with the prior art, the invention has the following beneficial effects:
the invention creatively provides the cationic pigment ink, and as most of printing base materials such as leather, textiles, paper and the like have negative charges on the surface in the water phase, the cationic pigment ink provided by the invention can ionize positive charges and combine with the negative charges on the surface of the printing base materials to form ionic bonds, thereby obviously improving the adhesive force and washing fastness, avoiding the ink bleeding phenomenon and having high pattern precision. In addition, due to the characteristic that the cationic pigment ink can ionize cations, the cationic pigment ink provided by the invention can be directly printed on base materials such as leather and textiles, and the like, so that the printing base materials do not need to be additionally treated, the production efficiency is improved, and the production cost is saved. According to the invention, the cationic acrylic resin with excellent water solubility and the cationic polyurethane resin are compounded as the main adhesive, the particle size of the adhesive is small, a spray head cannot be blocked, the ink-jet printing smoothness is better, the cationic acrylic acid and the cationic polyurethane are matched with each other, the synergistic effect is realized, the defects of 'hot sticking and cold brittleness' of the single acrylic resin and 'hard film forming and poor hand feeling' of the single polyurethane resin are overcome, the bonding fastness of the ink and the product is obviously improved, and the printed product has good elasticity and soft hand feeling. On the basis, the cationic acrylic acid and the cationic polyurethane are compounded by adopting the preferable proportion, so that the elasticity and the hand feeling of a printed product are further improved, and the bonding fastness of the ink and the product is improved. In addition, the invention discovers that the selection of the dispersing agent has certain influence on the stability of the ink, and firstly, the cationic dispersing agent and the nonionic dispersing agent are combined to be used as the composite dispersing agent, so that the stability of the ink is improved better than that of the cationic dispersing agent or the nonionic dispersing agent which is used alone. Secondly, the cationic dispersant adopts the combination of methacryloyloxyethyl trimethyl ammonium chloride and epoxypropyl trimethyl ammonium chloride, the dispersing effect is better than that of a single dispersant, and the two components have unexpected synergistic effect in the aspect of improving the stability of the pigment ink. The cationic pigment ink provided by the invention can be directly printed on leather or textiles without pretreatment, has the advantages of simple process, high ink printing precision, good fastness and good fluency, greatly improves the production efficiency of ink-jet printing, and has good application prospect in digital ink-jet printing of leather and textiles.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following further describes the technical solution of the present invention with reference to the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.
Example 1
This example provides a cationic pigment ink, which has the following formulation:
the formula of the cationic red color paste comprises the following components:
the cationic pigment ink formula comprises:
the preparation method comprises the following steps:
(1) weighing and mixing various preparation raw materials of the cationic color paste according to the formula, stirring at the rotating speed of 1500rpm for 10min at the temperature of 25 ℃, transferring to a pin-and-rod type sand mill, and grinding for 2.5 hours to obtain cationic red color paste;
(2) weighing and mixing each preparation raw material of the cationic pigment ink according to the formula, stirring for 60min at the rotating speed of 1000rpm at 25 ℃, and filtering through 5 mu m, 3 mu m and 1 mu m microporous filter membranes in sequence to obtain the ink.
Example 2
This example provides a cationic pigment ink, which has the following formulation:
the formula of the cationic yellow color paste is as follows:
the cationic pigment ink formula comprises:
| raw materials | Mass percentage content (%) |
| Cation yellow color paste | 20 |
| Isobutanol | 25 |
| Simo 3-chloro-hydroxypropyl trimethylammonium chloride | 1.5 |
| Basff T-60 | 0.5 |
| Dismann XK351 | 7 |
| AH-1730 of Anda Huatai | 14 |
| ByK011 | 0.05 |
| Deionized water | 31.95 |
The preparation method comprises the following steps:
(1) weighing and mixing various preparation raw materials of the cation color paste according to a formula, stirring at the rotating speed of 1500rpm for 12min at the temperature of 25 ℃, transferring to a pin-and-rod type sand mill, and grinding for 3 hours to obtain the cation color paste;
(2) weighing and mixing each preparation raw material of the cationic pigment ink according to the formula, stirring at the rotating speed of 1500rpm for 40min at the temperature of 25 ℃, and filtering through 5 mu m, 3 mu m and 1 mu m microporous filter membranes in sequence to obtain the ink.
Example 3
This example provides a cationic pigment ink, which has the following formulation:
the formula of the cationic blue color paste is as follows:
the cationic pigment ink formula comprises:
| raw materials | Mass percentage content (%) |
| Cationic blue color paste | 30 |
| Ethylene glycol | 20 |
| Solvay 1631 | 2.2 |
| Sea stone flower S-40 | 0.8 |
| Zhanxin Valbond 8020 | 6 |
| Huakai DB-716 | 18 |
| ByK011 | 0.05 |
| Deionized water | 22.95 |
The preparation method comprises the following steps:
(1) weighing and mixing various preparation raw materials of the cation color paste according to the formula, stirring for 15min at the rotating speed of 1500rpm at the temperature of 25 ℃, transferring to a pin-and-rod type sand mill, and grinding for 2 hours to obtain superfine cation red color paste;
(2) weighing and mixing each preparation raw material of the cationic pigment ink according to the formula, stirring for 30min at the rotating speed of 2000rpm at the temperature of 25 ℃, and filtering through 5 mu m, 3 mu m and 1 mu m microporous filter membranes in sequence to obtain the ink.
Example 4
This example provides a cationic pigment ink, which has the following formulation:
the formula of the cationic black color paste is as follows:
| raw materials | Mass percentage content (%) |
| Crainen Pigment Black33 | 13 |
| Diethylene glycol | 25 |
| Solvay 1631 | 8 |
| ByK011 | 0.05 |
| Deionized water | 53.95 |
The cationic pigment ink formula comprises:
| raw materials | Mass percentage content (%) |
| Cationic black color paste | 28 |
| N-butanol | 20 |
| Kepler KPL-6758 | 2.1 |
| Sea stone flower S-60 | 0.9 |
| Disemann AC30 | 7 |
| Lansheng LANXESS Witcobond 214 | 17 |
| ByK011 | 0.05 |
| Deionized water | 24.95 |
The preparation process is as in example 1.
Example 5
This example provides a cationic pigment ink, which is prepared from the raw materials different from example 1 only in that "french pioneer Prox AM 219R 10%, dingheng xin DHX-P8510%" is replaced with "french pioneer Prox AM 219R 3.5%, dingheng xin DHX-P8516.5%", and other raw materials and contents are not changed.
The preparation process is as in example 1.
Example 6
This example provides a cationic pigment ink, which is prepared from the raw materials different from example 1 only in that "french pioneer Prox AM 219R 10%, ding heng xin DHX-P8510%" is replaced with "french pioneer Prox AM 219R 12%, ding heng xin DHX-P858%", and other raw materials and contents are not changed.
The preparation process is as in example 1.
Example 7
This example provides a cationic pigment ink, which was prepared by using the raw materials different from those of example 1 only in that the dispersants "1% Carnous 2, 3-epoxypropyltrimethylammonium chloride and 1% Basff T-401" were replaced with "2% Carnous 2, 3-epoxypropyltrimethylammonium chloride", and the other raw materials and contents were not changed.
The preparation process is as in example 1.
Example 8
This example provides a cationic pigment ink, which was prepared from the raw materials different from example 1 only in that the dispersants "1% Carnosh 2, 3-epoxypropyltrimethylammonium chloride", 1% Basoft-401% "were replaced with" Bassft-402% "and the other raw materials and contents were not changed.
The preparation process is as in example 1.
Example 9
This example provides a cationic pigment ink, which is prepared from the following raw materials that are different from those in example 1 only in that the cationic dispersant "kepler KPL-67583%, carnos 2, 3-epoxypropyltrimethylammonium chloride 5%" in the color paste formulation is replaced by "carnos 2, 3-epoxypropyltrimethylammonium chloride 8%", and other raw materials and contents are unchanged.
The preparation process is as in example 1.
Example 10
This example provides a cationic pigment ink, which is prepared from the following raw materials that are different from those in example 1 only in that the cationic dispersant "kepler KPL-67583% and 5% carnos 2, 3-epoxypropyltrimethylammonium chloride" in the color paste formulation are replaced by "kepler KPL-67588%", and other raw materials and contents are not changed.
The preparation process is as in example 1.
Comparative example 1
This comparative example provides an anionic pigment ink having the following formulation:
the formula of the anionic red color paste comprises the following components:
| raw materials | Mass percentage content (%) |
| Crainen P.R.170 | 12 |
| Ethylene glycol | 30 |
| Pasteur Dispex AA 4141 | 8 |
| ByK011 | 0.05 |
| Deionized water | 49.95 |
Anionic pigment ink formulation:
| raw materials | Mass percentage content (%) |
| Anionic red color paste | 25 |
| Glycerol | 20 |
| Dispers 760W | 2 |
| Joncryl U4190 Basf | 20 |
| ByK011 | 0.05 |
| Deionized water | 32.95 |
The preparation process is as in example 1.
Comparative example 2
This comparative example provides an anionic pigment ink having the following formulation:
the formula of the anionic red color paste comprises the following components:
| raw materials | Mass percentage content (%) |
| Crainen P.R.170 | 15 |
| Propylene glycol | 26 |
| Tsmol NN8906 | 10 |
| ByK011 | 0.05 |
| Deionized water | 48.95 |
Anionic pigment ink formulation:
| raw materials | Mass percentage content (%) |
| Anionic red color paste | 20 |
| Isobutanol | 25 |
| Tego740W Digao | 2 |
| Dolphin-1699 | 21 |
| ByK011 | 0.05 |
| Deionized water | 31.95 |
The preparation process is as in example 1.
Comparative example 3
The comparative example provides a cationic pigment ink, and the preparation raw materials of the cationic pigment ink are different from those in example 1 only in that the 'French pioneer Prox AM 219R 10%, Dinghengxin DHX-P8510%' is replaced by 'Dinghengxin DHX-P8520%', and other raw materials and contents are unchanged.
The preparation process is as in example 1.
Comparative example 4
This comparative example provides a cationic pigmented ink, which was prepared from the same starting materials as in example 1 except that "french pioneer Prox AM 219R 10%, dinghengxin DHX-P8510%" was replaced with "french pioneer Prox AM 219R 20%", and the other starting materials and contents were unchanged.
The preparation process is as in example 1.
Test example 1
Testing physical and chemical parameters:
the physicochemical properties of the pigment inks of examples 1 to 10 and comparative examples 1 to 2 were measured by the following methods:
and (3) particle size testing: GB/T19077.1-2016 particle size analysis laser diffraction first part: the general rule is put forward.
Surface tension test: GB/T22237-2008 surfactant surface tension determination.
And (3) viscosity testing: GB/T10247-2008 viscosity measurement method.
Zeta potential test: GB/T32668-2016 Zeta potential analysis of colloidal particles.
The results are shown in Table 1.
TABLE 1
The results show that: the Zeta potentials of the pigment inks provided in examples 1 to 10 are positive, which proves that the pigment inks provided by the present invention are indeed cationic pigment inks, and the physicochemical parameters such as particle size, surface tension and viscosity all meet the requirements.
Test example 2
And (3) testing the ink jet effect:
the pigment inks of examples 1-6 and comparative examples 1-4, respectively, were loaded onto a digital ink jet printer and printed directly onto flat leather. The leather materials used in each group are the same, and the printed patterns are the same. The inkjet effect of each set of pigment inks was tested.
Color vividness: visual inspection.
Washing fastness: GB/T3921.1-2008.
Dry rubbing fastness and wet rubbing fastness: GB/T3920-2008.
The above test results were in the form of ratings, up to 5.
The direct injection clarity, the hardness and hand feel of the printed leather were evaluated by 10 volunteers, using a scoring mode:
5 min-clear edge, no infiltration, good elasticity of printed product and soft hand feeling;
3 min-the edge is clearer and basically has no seepage, and the printed product has certain elasticity and softer hand feeling;
1 minute-fuzzy edge, bleeding, hard printed product and poor hand feeling.
The results of the individual group ratings and mean scores are shown in table 2.
TABLE 2
The results show that: the cationic pigment inks provided in examples 1 to 6, when used in digital ink-jet printing on leather, all showed good color vividness, fastness to bonding with products, direct jet sharpness, and hand feel of the products after ink-jet printing, and the advantages were very significant compared to the anionic pigment inks of comparative examples 1 to 2, showing that: the cationic pigment ink provided by the invention can ionize positive charges and combine with negative charges on the surface of a printing substrate to form ionic bonds, so that the adhesive force and the washing fastness are obviously improved, the ink bleeding phenomenon is avoided, and the printing pattern precision is high. Compared with the example 1, the leather printed by the cationic pigment ink of the comparative examples 3-4 has poorer comprehensive performances of hand feeling and bonding fastness with ink, which shows that the cationic acrylic resin and the cationic polyurethane resin are matched with each other and have synergistic interaction, the defects of 'hot sticking and cold brittleness' of the pure acrylic resin and 'hard film forming and poorer hand feeling' of the pure polyurethane resin are overcome, the bonding fastness of the ink and the product is obviously improved, and meanwhile, the printed product has good elasticity and soft hand feeling. The leather printed by the cationic pigment ink of the embodiment 5-6 has poorer comprehensive properties of hand feeling and binding fastness with ink than that of the embodiment 1, which shows that the quality ratio of the cationic acrylic resin and the cationic polyurethane resin has certain influence on the elasticity and hand feeling of a printed product and the binding fastness of the ink and the product.
Test example 3
Ink stability test
The stability of the pigment inks of examples 1-4, 7-10, comparative examples 1-2 was tested:
the particle size of each group of pigment ink was measured and recorded, and after each group of pigment ink was placed in a 1000mL wide-necked bottle of the same type at room temperature for 3 months, the particle size of each group of pigment ink was measured again in the same manner as in test example 1, and the results are shown in table 3.
TABLE 3
The results show that: the pigment ink provided by the invention has small particle size change after being placed for 3 months, which shows that the stability of the ink is good. The stability of the inks of examples 7 to 8 is poorer than that of example 1, which shows that the selection of the dispersant has certain influence on the stability of the ink, and the cationic dispersant and the nonionic dispersant are combined into the composite dispersant, so that the stability of the ink is improved more favorably than that of the ink which is singly used. In addition, the stability of the inks of examples 9-10 is slightly worse than that of example 1, which shows that the cationic dispersant in the color paste formula is better in the dispersion effect of the combination of methacryloyloxyethyl trimethyl ammonium chloride and epoxypropyl trimethyl ammonium chloride than the dispersion effect of the single dispersant, and the two components have unexpected synergistic effect in the aspect of improving the stability of the pigment ink.
In conclusion, the invention creatively provides the cationic pigment ink, and as most printing base materials such as leather, textiles, paper and the like have negative charges on the surface in the water phase, the cationic pigment ink provided by the invention can ionize positive charges and combine with the negative charges on the surface of the printing base materials to form ionic bonds, so that the adhesive force and the washing fastness are obviously improved, the ink bleeding phenomenon is avoided, and the pattern precision is high. In addition, due to the characteristic that the cationic pigment ink can ionize cations, the cationic pigment ink provided by the invention can be directly printed on base materials such as leather and textiles, and the like, so that the printing base materials do not need to be additionally treated, the production efficiency is improved, and the production cost is saved. According to the invention, the cationic acrylic resin with excellent water solubility and the cationic polyurethane resin are compounded as the main adhesive, the particle size of the adhesive is small, a spray head cannot be blocked, the ink-jet printing smoothness is better, the cationic acrylic acid and the cationic polyurethane are matched with each other, the synergistic effect is realized, the defects of 'hot sticking and cold brittleness' of the single acrylic resin and 'hard film forming and poor hand feeling' of the single polyurethane resin are overcome, the bonding fastness of the ink and the product is obviously improved, and the printed product has good elasticity and soft hand feeling. On the basis, the cationic acrylic acid and the cationic polyurethane are compounded by adopting the preferable proportion, so that the elasticity and the hand feeling of a printed product are further improved, and the bonding fastness of the ink and the product is improved. In addition, the invention discovers that the selection of the dispersing agent has certain influence on the stability of the ink, and firstly, the cationic dispersing agent and the nonionic dispersing agent are combined into the composite dispersing agent, so that the stability of the ink is improved better than that of the ink which is singly used. Secondly, the cationic dispersant adopts the combination of methacryloyloxyethyl trimethyl ammonium chloride and epoxypropyl trimethyl ammonium chloride, the dispersing effect is better than that of a single dispersant, and the two components have unexpected synergistic effect in the aspect of improving the stability of the pigment ink. The cationic pigment ink provided by the invention can be directly printed on leather or textiles without pretreatment, has the advantages of simple process, high ink printing precision, good fastness and good fluency, greatly improves the production efficiency of ink-jet printing, and has good application prospect in digital ink-jet printing of leather and textiles.
The applicant states that the present invention is illustrated by the above examples to describe a cationic pigment ink and a method for preparing the same and applications thereof, but the present invention is not limited to the above examples, i.e. it does not mean that the present invention must be implemented by the above examples. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
Claims (10)
1. The cationic pigment ink is characterized by comprising cationic color paste, cationic acrylic resin, cationic polyurethane resin and an additive.
2. The cationic pigment ink according to claim 1, wherein the cationic pigment ink comprises, by weight, 20 to 30 parts of cationic color paste, 5 to 10 parts of cationic acrylic resin, 10 to 20 parts of cationic polyurethane resin and 15 to 31 parts of additive.
3. The cationic pigment ink of claim 1 or 2, wherein the additive comprises any one of a humectant, a dispersant, or a defoamer, or a combination of at least two thereof.
4. The cationic pigment ink according to any one of claims 1 to 3, wherein the cationic pigment ink comprises, by mass, 20 to 30% of cationic color paste, 5 to 10% of cationic acrylic resin, 10 to 20% of cationic polyurethane resin, 15 to 25% of humectant, 1 to 5% of dispersant, 0.02 to 0.05% of defoamer, and the balance of water.
5. The cationic pigment ink according to any one of claims 1 to 4, wherein the cationic paste comprises a pigment, an alcohol compound, a cationic dispersant and an antifoaming agent;
preferably, the cationic color paste comprises 10-15% of pigment, 20-30% of alcohol compound, 5-10% of cationic dispersant, 0.05-0.1% of defoaming agent and the balance of water in percentage by mass;
preferably, the alcohol compound comprises any one of ethylene glycol, propylene glycol, glycerol, isobutanol, n-butanol, isoamyl alcohol, diethylene glycol or polyethylene glycol or a combination of at least two of the same;
preferably, the cationic dispersant comprises any one or a combination of at least two of epoxypropyltrimethylammonium chloride, epoxypropyltriethylammonium chloride, 3-chloro-hydroxypropyltrimethylammonium chloride, acryloyloxyethyltrimethylammonium chloride, methacryloyloxyethyltrimethylammonium chloride, 2-hydroxyethyl-bistrimethylammonium chloride, dihydroxyethyltrimethylammonium chloride or hexadecyltrimethylammonium chloride, preferably a combination of methacryloyloxyethyltrimethylammonium chloride and epoxypropyltrimethylammonium chloride;
preferably, the defoaming agent comprises any one of polyether defoaming agent, silicone defoaming agent or polyether modified silicon defoaming agent or the combination of at least two of the above.
6. The cationic pigmented ink of any one of claims 3-5 wherein the humectant comprises any one or a combination of at least two of ethylene glycol, propylene glycol, glycerol, isobutanol, n-butanol, isoamyl alcohol, diethylene glycol, or polyethylene glycol.
7. The cationic pigment ink according to any one of claims 3 to 6, wherein the dispersant comprises a cationic dispersant and/or a nonionic dispersant, preferably a combination of a cationic dispersant and a nonionic dispersant;
preferably, the mass ratio of the cationic dispersant to the nonionic dispersant is (1-3): 1.
8. The cationic pigment ink of claim 7, wherein the non-ionic dispersant comprises any one of tween 40, tween 60, tween 80, span 40, span 60, span 80, peregal OS-15 or peregal a-20, or a combination of at least two thereof.
9. The method for preparing cationic pigment ink according to any one of claims 1 to 8, wherein the method for preparing cationic pigment ink comprises mixing cationic color paste, cationic acrylic resin, cationic polyurethane resin and additives, stirring, and filtering.
10. Use of a cationic pigment ink according to any one of claims 1 to 8 or a method of preparing a cationic pigment ink according to claim 9 in digital ink jet for leather or textiles.
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| CN116396641A (en) * | 2023-04-06 | 2023-07-07 | 浙江纳美新材料股份有限公司 | Water-based cationic color paste and preparation method and application thereof |
| CN116396641B (en) * | 2023-04-06 | 2024-03-26 | 浙江纳美新材料股份有限公司 | Water-based cationic color paste and preparation method and application thereof |
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