CN113025233A - Water-based low-temperature heat transfer adhesive and preparation method thereof - Google Patents
Water-based low-temperature heat transfer adhesive and preparation method thereof Download PDFInfo
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- CN113025233A CN113025233A CN202110394442.9A CN202110394442A CN113025233A CN 113025233 A CN113025233 A CN 113025233A CN 202110394442 A CN202110394442 A CN 202110394442A CN 113025233 A CN113025233 A CN 113025233A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000000853 adhesive Substances 0.000 title claims abstract description 56
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims description 18
- 238000010023 transfer printing Methods 0.000 claims abstract description 65
- 239000000839 emulsion Substances 0.000 claims abstract description 43
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 41
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 40
- 239000004014 plasticizer Substances 0.000 claims abstract description 34
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 31
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 30
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 29
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000005977 Ethylene Substances 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 15
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 claims abstract description 11
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000001993 wax Substances 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 22
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- 239000012752 auxiliary agent Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000004209 oxidized polyethylene wax Substances 0.000 claims description 9
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 8
- 229910021529 ammonia Inorganic materials 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000004203 carnauba wax Substances 0.000 claims description 5
- 239000004200 microcrystalline wax Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 37
- 238000000576 coating method Methods 0.000 abstract description 37
- 238000007639 printing Methods 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 7
- 230000003993 interaction Effects 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 15
- 239000008234 soft water Substances 0.000 description 11
- 235000011187 glycerol Nutrition 0.000 description 9
- 239000007787 solid Substances 0.000 description 7
- 239000004721 Polyphenylene oxide Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 229920000570 polyether Polymers 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 229920006226 ethylene-acrylic acid Polymers 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
- NZPIQKUHZVXACL-KHPPLWFESA-N 1-[2-[(z)-octadec-9-enyl]-4,5-dihydroimidazol-1-yl]ethanol Chemical compound CCCCCCCC\C=C/CCCCCCCCC1=NCCN1C(C)O NZPIQKUHZVXACL-KHPPLWFESA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical group [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- BTKXSYWWRGMQHR-UHFFFAOYSA-N [amino(diethoxy)silyl]oxyethane Chemical compound CCO[Si](N)(OCC)OCC BTKXSYWWRGMQHR-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- JBSLOWBPDRZSMB-FPLPWBNLSA-N dibutyl (z)-but-2-enedioate Chemical compound CCCCOC(=O)\C=C/C(=O)OCCCC JBSLOWBPDRZSMB-FPLPWBNLSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- QHZOMAXECYYXGP-UHFFFAOYSA-N ethene;prop-2-enoic acid Chemical compound C=C.OC(=O)C=C QHZOMAXECYYXGP-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0869—Acids or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention provides a water-based low-temperature thermal transfer printing adhesive which is prepared from the following raw materials: 20-30 parts by weight of ethylene acrylic resin; 3-10 parts by weight of an alkaline neutralizing agent; 0.3-0.5 part by weight of a leveling assistant; 1-5 parts of wax emulsion; 1-3 parts by weight of a plasticizer; 0.01-0.05 part by weight of a defoaming agent; 65-80 parts by weight of water; the plasticizer is selected from one or more of glycerol, dioctyl adipate and dioctyl sebacate. Compared with the prior art, the water-based low-temperature thermal transfer printing adhesive provided by the invention adopts specific components, realizes better overall interaction, has better leveling property, water resistance and scratch resistance, has excellent low-temperature transfer printing image-text integrity, is a pure water material, and is environment-friendly and pollution-free. Experimental results show that the aqueous low-temperature thermal transfer printing adhesive has good leveling property, the formed coating does not turn white and swell after being washed by water at the temperature of 45-60 ℃ for 1 hour, the scraping appearance is still intact, the coating can be stretched by 2-2.6 times continuously, the low-temperature transfer printing graph and text at the temperature of 110-125 ℃ are complete, and the printing performance is good.
Description
Technical Field
The invention relates to the technical field of printing materials, in particular to a water-based low-temperature thermal transfer printing adhesive and a preparation method thereof.
Background
The heat transfer printing is to make the transfer printing film with pattern contact with the printing stock directly, the picture and text layer on the transfer printing film is dissolved and transferred to the carrier, the heat transfer printing film includes carrier layer, release layer, protective layer, ink layer, adhesive layer, and each coating layer, which are closely connected and mutually influenced. The adhesive layer is a base adhesive for bonding the ink information layer and various materials, and has high adhesion, high temperature resistance, scratch resistance, water washing resistance and boiling resistance. The scratch resistance, leveling property, water resistance, high temperature resistance and low-temperature integrity of the transfer printing image-texts are not ideal due to the problems of the heat transfer printing adhesive in the prior art.
Chinese patent with publication number CN103289611A discloses an acrylic resin heat transfer adhesive and a preparation method thereof, wherein the acrylic resin heat transfer adhesive is prepared from the following raw materials in parts by weight: 25-28 parts of acrylic resin (AR-1520), 12-15 parts of polyisobutylene, 3-6 parts of amino triethoxysilane, 3-5 parts of methyl triethoxysilane, 2-3 parts of diiso benzene peroxide, 12-15 parts of dibutyl maleate, 4-6 parts of dodecyl mercaptan, 5-8 parts of rosin, a crosslinking agent TAC1-2 parts, 3-5 parts of dioctyl ester, 1-hydroxyethyl-2-oleyl imidazoline 1-2 parts, 2-3 parts of p-phenylenediamine, 55-60 parts of acetone and 40-45 parts of xylene; it has the advantages of firm adhesion, no damage, no falling off, no yellowing, etc. And Chinese patent with publication number CN109517566A discloses an aqueous heat transfer printing PP adhesive, which comprises the following components in percentage by mass: 5-15 parts of water-based acrylic emulsion, 20-40 parts of water-based polyurethane dispersoid, 5-15 parts of polyvinyl alcohol, 5-15 parts of water-based coumarone resin, 0-5 parts of water-based adhesion promoter, 0-1 part of fumed silica, 10-20 parts of ethanol, 10-20 parts of distilled water, 0-0.001 part of leveling agent and 0-0.001 part of defoaming agent; it has high adhesion and high edge cutting performance. However, the leveling property, water resistance, scratch resistance and low-temperature transfer image-text integrity of the products disclosed by the prior art are not improved, and the raw materials are not environment-friendly.
Disclosure of Invention
In view of the above, the present invention provides an aqueous low-temperature thermal transfer printing adhesive and a preparation method thereof, and the aqueous low-temperature thermal transfer printing adhesive provided by the present invention has good leveling property, water resistance, scratch resistance, good integrity of low-temperature transfer printing graphics and text, is a pure water material, and is environment-friendly and pollution-free.
The invention provides a water-based low-temperature thermal transfer printing adhesive which is prepared from the following raw materials:
20-30 parts by weight of ethylene acrylic resin;
3-10 parts by weight of an alkaline neutralizing agent;
0.3-0.5 part by weight of a leveling assistant;
1-5 parts of wax emulsion;
1-3 parts by weight of a plasticizer;
0.01-0.05 part by weight of a defoaming agent;
65-80 parts by weight of water;
the plasticizer is selected from one or more of glycerol, dioctyl adipate and dioctyl sebacate.
Preferably, the ethylene acrylic resin has a melt index of 300-1300 and a melting point of 75-78 ℃.
Preferably, the basic neutralizing agent is selected from one or more of ammonia, KOH, NaOH, and triethylamine.
Preferably, the leveling aid is selected from one or more of Glide 410, Wet KL 245 and Glide 496.
Preferably, the wax emulsion is selected from one or more of palm wax, polyethylene wax, oxidized polyethylene wax and micronized wax.
The invention also provides a preparation method of the aqueous low-temperature heat transfer printing adhesive, which comprises the following steps:
a) under the condition of stirring, mixing a first amount of water, a second amount of alkaline neutralizing agent and a plasticizer, adding ethylene acrylic resin, and carrying out a first reaction; then, dropwise adding the rest alkaline neutralizing agent at the speed of 4-6 g/s for carrying out a second reaction; then, adding the rest water at the speed of 45-55 g/s to carry out a third reaction; and cooling, adding a defoaming agent and a leveling auxiliary agent, uniformly mixing, and finally adding a wax emulsion to obtain the aqueous low-temperature thermal transfer printing adhesive.
Preferably, the rotating speed of the stirring in the step a) is 100 r/min-500 r/min; the mixing time of the first amount of water, the second amount of alkaline neutralizing agent and the plasticizer is 1-10 min.
Preferably, the first amount of water in step a) accounts for 70-90 wt% of the total amount of water; the second amount of the alkaline neutralizing agent accounts for 70-80 wt% of the total amount of the alkaline neutralizing agent.
Preferably, the temperature of the first reaction in the step a) is 90-100 ℃, and the time is 1-2 h;
the temperature of the second reaction is 90-100 ℃, and the time is 0.5-1 h;
the temperature of the third reaction is 90-100 ℃, and the time is 1-2 h.
Preferably, the temperature of said cooling in step a) is between 20 ℃ and 30 ℃.
The invention provides a water-based low-temperature thermal transfer printing adhesive which is prepared from the following raw materials: 20-30 parts by weight of ethylene acrylic resin; 3-10 parts by weight of an alkaline neutralizing agent; 0.3-0.5 part by weight of a leveling assistant; 1-5 parts of wax emulsion; 1-3 parts by weight of a plasticizer; 0.01-0.05 part by weight of a defoaming agent; 65-80 parts by weight of water; the plasticizer is selected from one or more of glycerol, dioctyl adipate and dioctyl sebacate. Compared with the prior art, the water-based low-temperature thermal transfer printing adhesive provided by the invention adopts specific components, realizes better overall interaction, has better leveling property, water resistance and scratch resistance, has excellent low-temperature transfer printing image-text integrity, is a pure water material, and is environment-friendly and pollution-free. Experimental results show that the waterborne low-temperature thermal transfer printing adhesive provided by the invention is good in leveling property, the formed coating does not turn white and swell after being washed with water at 45-60 ℃ for 1h, the appearance of the scraped coating is still intact, the coating can be stretched by 2-2.6 times continuously, the low-temperature transfer printing graph and text at 110-125 ℃ are complete, the printing performance is good, and the printing ink can not fall off and has bright colors.
In addition, the preparation method provided by the invention has the advantages of simple process, mild condition, easiness in control and wide application prospect.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a water-based low-temperature thermal transfer printing adhesive which is prepared from the following raw materials:
20-30 parts by weight of ethylene acrylic resin;
3-10 parts by weight of an alkaline neutralizing agent;
0.3-0.5 part by weight of a leveling assistant;
1-5 parts of wax emulsion;
1-3 parts by weight of a plasticizer;
0.01-0.05 part by weight of a defoaming agent;
65-80 parts by weight of water;
the plasticizer is selected from one or more of glycerol, dioctyl adipate and dioctyl sebacate.
In the invention, the water-based low-temperature thermal transfer printing adhesive is prepared from raw materials including ethylene acrylic resin, an alkaline neutralizer, a leveling assistant, a wax emulsion, a plasticizer, a defoaming agent and water, and is preferably prepared from the ethylene acrylic resin, the alkaline neutralizer, the leveling assistant, the wax emulsion, the plasticizer, the defoaming agent and the water.
In the invention, the ethylene acrylic resin preferably has a melt index of 300-1300 and a melting point of 75-78 ℃. The source of the ethylene acrylic acid resin is not particularly limited in the present invention, and commercially available products or self-products known to those skilled in the art may be used; such as those prepared by using ethylene-vinyl acetate copolymer, didodecyl methacrylate, methyl methacrylate as main components, which are well known to those skilled in the art; ensuring that the EAA parameters meet the requirements of the raw materials. In the invention, the aqueous low-temperature heat transfer printing glue comprises 20-30 parts by weight of ethylene acrylic resin, and preferably 20-28 parts by weight.
In the present invention, the basic neutralizing agent is preferably selected from one or more of ammonia, KOH, NaOH and triethylamine, and more preferably from one or two of ammonia, KOH, NaOH and triethylamine. The source of the basic neutralizing agent in the present invention is not particularly limited, and commercially available products of the above-mentioned ammonia, KOH, NaOH and triethylamine known to those skilled in the art may be used.
In the present invention, the leveling aid is preferably selected from one or more of Glide 410, Wet KL 245 and Glide 496, more preferably Glide 410, Wet KL 245 or Glide 496. The source of the leveling aid is not particularly limited in the present invention, and commercially available products of Glide 410, Wet KL 245 and Glide 496, which are well known to those skilled in the art, can be used.
In the present invention, the wax emulsion is preferably selected from one or more of palm wax, polyethylene wax, oxidized polyethylene wax, and micronized wax, and more preferably palm wax, polyethylene wax, oxidized polyethylene wax, or micronized wax. The source of the wax emulsion is not particularly limited in the present invention, and commercially available products of the above-mentioned palm wax, polyethylene wax, oxidized polyethylene wax and fine powder wax, which are well known to those skilled in the art, may be used. In the invention, the aqueous low-temperature heat transfer printing glue comprises 1-5 parts by weight of wax emulsion, preferably 2-5 parts by weight.
In the present invention, the plasticizer is selected from one or more of glycerin, dioctyl adipate and dioctyl sebacate, preferably glycerin, dioctyl adipate or dioctyl sebacate. The source of the plasticizer in the present invention is not particularly limited, and commercially available products of the above-mentioned glycerin, dioctyl adipate and dioctyl sebacate, which are well known to those skilled in the art, may be used. In the invention, the aqueous low-temperature heat transfer printing glue comprises 1-3 parts by weight of plasticizer, preferably 1-2 parts by weight.
In the present invention, the defoaming agent is preferably a polyether-modified silicone-based defoaming agent; the present invention is not particularly limited in its origin, and commercially available products known to those skilled in the art may be used.
In the present invention, the water is soft water well known to those skilled in the art, and the present invention is not particularly limited thereto. In the invention, the aqueous low-temperature heat transfer printing glue comprises 65-80 parts by weight of water, preferably 72-80 parts by weight.
In the invention, the solid content of the aqueous low-temperature thermal transfer printing adhesive is preferably 20-30%; storing at low temperature in dark place, and sealing.
The water-based low-temperature thermal transfer printing adhesive provided by the invention adopts specific components, realizes better overall interaction, has better leveling property, water resistance, scraping resistance and excellent low-temperature transfer printing image-text integrity, is a pure water material, has no residue in a completely water-based formula, meets the market requirements of environmental protection, easy use and stability, and can be used safely; in addition, the water-based low-temperature thermal transfer printing adhesive provided by the invention can be coated on a substrate such as a release film or release paper and has good product adaptability. Experimental results show that the waterborne low-temperature thermal transfer printing adhesive provided by the invention is good in leveling property, the formed coating does not turn white and swell after being washed with water at the temperature of 45-60 ℃ for 1 hour, the appearance of the scraped coating is still intact, and the coating can be stretched by 2-2.6 times continuously; compared with the product with the same solid content, the transfer printing temperature is 160-180 ℃, the temperature required by the product provided by the invention for transfer printing is 110-125 ℃, the low-temperature transfer printing graph and text at 110-125 ℃ are complete, the printing performance is good, and the printing ink can not fall off and has bright color.
The invention also provides a preparation method of the aqueous low-temperature heat transfer printing adhesive, which comprises the following steps:
a) under the condition of stirring, mixing a first amount of water, a second amount of alkaline neutralizing agent and a plasticizer, adding ethylene acrylic resin, and carrying out a first reaction; then, dropwise adding the rest alkaline neutralizing agent at the speed of 4-6 g/s for carrying out a second reaction; then, adding the rest water at the speed of 45-55 g/s to carry out a third reaction; and cooling, adding a defoaming agent and a leveling auxiliary agent, uniformly mixing, and finally adding a wax emulsion to obtain the aqueous low-temperature thermal transfer printing adhesive.
In the present invention, the water, the alkaline neutralizer, the plasticizer, the ethylene acrylic resin, the wax emulsion, the defoamer and the leveling aid are the same as those in the above technical solution, and are not described herein again.
In the present invention, the stirring condition is continuously performed throughout the production process; the rotation speed of the stirring is preferably 100 r/min-500 r/min. The apparatus used in the preparation method is not particularly limited, and a reaction kettle known to those skilled in the art can be used.
In the present invention, the mixing time of the first amount of water, the second amount of the alkaline neutralizing agent, and the plasticizer is preferably 1min to 10min, and more preferably 5 min.
In the present invention, the first amount of water is preferably 70 to 90 wt% of the total amount of water; the second amount of the alkaline neutralizing agent preferably accounts for 70-80 wt% of the total amount of the alkaline neutralizing agent.
In the invention, the temperature of the first reaction is preferably 90-100 ℃, and more preferably 90-98 ℃; the time of the first reaction is preferably 1 to 2 hours.
In the invention, the temperature of the second reaction is preferably 90-100 ℃, and more preferably 90-98 ℃; the time of the second reaction is preferably 0.5h to 1 h.
In the invention, the temperature of the third reaction is preferably 90-100 ℃, and more preferably 95-100 ℃; the time of the third reaction is preferably 1 to 2 hours.
In the present invention, the temperature of the cooling is preferably 20 to 30 ℃, more preferably 25 ℃.
The preparation method provided by the invention has the advantages of simple process, mild condition, easiness in control and wide application prospect.
The invention provides a water-based low-temperature thermal transfer printing adhesive which is prepared from the following raw materials: 20-30 parts by weight of ethylene acrylic resin; 3-10 parts by weight of an alkaline neutralizing agent; 0.3-0.5 part by weight of a leveling assistant; 1-5 parts of wax emulsion; 1-3 parts by weight of a plasticizer; 0.01-0.05 part by weight of a defoaming agent; 65-80 parts by weight of water; the plasticizer is selected from one or more of glycerol, dioctyl adipate and dioctyl sebacate. Compared with the prior art, the water-based low-temperature thermal transfer printing adhesive provided by the invention adopts specific components, realizes better overall interaction, has better leveling property, water resistance and scratch resistance, has excellent low-temperature transfer printing image-text integrity, is a pure water material, and is environment-friendly and pollution-free. Experimental results show that the waterborne low-temperature thermal transfer printing adhesive provided by the invention is good in leveling property, the formed coating does not turn white and swell after being washed with water at 45-60 ℃ for 1h, the appearance of the scraped coating is still intact, the coating can be stretched by 2-2.6 times continuously, the low-temperature transfer printing graph and text at 110-125 ℃ are complete, the printing performance is good, and the printing ink can not fall off and has bright colors.
In addition, the preparation method provided by the invention has the advantages of simple process, mild condition, easiness in control and wide application prospect.
To further illustrate the present invention, the following examples are provided for illustration. The starting materials used in the following examples of the invention are all commercially available.
Example 1
(1) The weight ratio and the specific types of the raw materials are limited:
the melt index of the ethylene acrylic resin is 300, and the melting point is 77 ℃;
the alkaline neutralizing agent is ammonia water;
the leveling auxiliary agent is Glide 410;
the wax emulsion is oxidized polyethylene wax;
the plasticizer is glycerol;
the defoaming agent is polyether modified organic silicon defoaming agent.
(2) The preparation method comprises the following steps:
adding soft water accounting for 70 wt% of the total water into a reaction kettle, starting stirring, controlling the stirring speed to be 100r/min, adding 80 wt% of alkaline neutralizing agent and all plasticizers, stirring for 5min, adding all ethylene acrylic resin, controlling the temperature to be 90 ℃, and carrying out heat preservation reaction for 1 h; slowly dripping the residual 20 wt% of alkaline neutralizing agent at the speed of 5g/s, controlling the temperature of the emulsion to 95 ℃, and reacting for 0.5h under the condition of heat preservation; then adding the rest 30 wt% of soft water at the speed of 50g/s, controlling the temperature of the emulsion to be 95 ℃, and carrying out heat preservation reaction for 2 hours; finally, cooling to 25 ℃, adding all the defoaming agent and the leveling auxiliary agent, uniformly mixing, and finally adding all the wax emulsion to obtain the aqueous low-temperature thermal transfer printing adhesive; the solid content of the obtained aqueous low-temperature thermal transfer printing adhesive is 21.5 wt%.
The aqueous low-temperature thermal transfer printing adhesive provided by the embodiment 1 of the invention is coated on a PET release film, the leveling property of the emulsion is good, a coating is formed after drying, and the dry adhesive amount is 50g/m2The coating is not whitish and swelled after being washed by warm water at 45 ℃ for 1 hour through detection, the appearance of the scraped coating is still intact, the coating can be stretched by 2 times continuously (the coating is not broken when the length of the coating is stretched by 2 times by using a method for testing the peel strength of a stretcher), the 125 ℃ low-temperature transfer image-text is complete, the printing performance is good, and the printing ink can not fall off and has bright color.
Example 2
(1) The weight ratio and the specific types of the raw materials are limited:
the melt index of the ethylene acrylic resin is 300, and the melting point is 77 ℃;
the alkaline neutralizing agent is prepared from the following components in percentage by weight of 1: 1 ammonia and triethylamine;
the leveling auxiliary agent is Wet KL 245;
the wax emulsion is polyethylene wax;
the plasticizer is dioctyl adipate;
the defoaming agent is polyether modified organic silicon defoaming agent.
(2) The preparation method comprises the following steps:
adding soft water with the total water amount of 80 wt% into a reaction kettle, starting stirring, controlling the stirring speed to be 300r/min, adding 70 wt% of alkaline neutralizing agent and all plasticizers, stirring for 5min, adding all ethylene acrylic resin, controlling the temperature to be 95 ℃, and carrying out heat preservation reaction for 1 h; slowly dripping the rest 30 wt% of alkaline neutralizing agent at the speed of 5g/s, controlling the temperature of the emulsion to 95 ℃, and reacting for 0.5h under the condition of heat preservation; then adding the rest 20 wt% of soft water at the speed of 50g/s, controlling the temperature of the emulsion to be 99 ℃, and carrying out heat preservation reaction for 2 hours; finally, cooling to 25 ℃, adding all the defoaming agent and the leveling auxiliary agent, uniformly mixing, and finally adding all the wax emulsion to obtain the aqueous low-temperature thermal transfer printing adhesive; the solid content of the obtained aqueous low-temperature thermal transfer printing adhesive is 26.3 wt%.
The aqueous low-temperature thermal transfer printing adhesive provided by the embodiment 2 of the invention is coated on a PET release film, the leveling property of the emulsion is good, a coating is formed after drying, and the dry adhesive amount is 80g/m2The coating does not turn white and swell after being washed by water at 50 ℃ for 1 hour through detection, the appearance of the scraped coating is still kept intact, the coating can be stretched by 2 times continuously (the coating is stretched by 2 times without breaking by using a method for testing the peel strength of a stretching machine), the 125 ℃ low-temperature transfer image-text is complete, the printing performance is good, and the printing ink can not fall off and has bright color.
Example 3
(1) The weight ratio and the specific types of the raw materials are limited:
the melt index of the ethylene acrylic resin is 1300, and the melting point is 77 ℃;
the alkaline neutralizing agent is prepared from the following components in percentage by weight of 1: 1 ammonia and triethylamine;
the leveling auxiliary agent is Wet KL 245;
the wax emulsion is oxidized polyethylene wax;
the plasticizer is glycerol;
the defoaming agent is polyether modified organic silicon defoaming agent.
(2) The preparation method comprises the following steps:
adding soft water with the total water amount of 90 wt% into a reaction kettle, starting stirring, controlling the stirring speed to be 100r/min, adding 80 wt% of alkaline neutralizing agent and all plasticizers, stirring for 5min, adding all ethylene acrylic resin, controlling the temperature to be 90 ℃, and carrying out heat preservation reaction for 1 h; slowly dripping the residual 20 wt% of alkaline neutralizing agent at the speed of 5g/s, controlling the temperature of the emulsion to 95 ℃, and reacting for 0.5h under the condition of heat preservation; then adding the rest 10 wt% of soft water at the speed of 50g/s, controlling the temperature of the emulsion to be 95 ℃, and carrying out heat preservation reaction for 2 hours; finally, cooling to 25 ℃, adding all the defoaming agent and the leveling auxiliary agent, uniformly mixing, and finally adding all the wax emulsion to obtain the aqueous low-temperature thermal transfer printing adhesive; the solid content of the obtained aqueous low-temperature thermal transfer printing adhesive is 30.0 wt%.
The water-based low-temperature thermal transfer printing adhesive provided by the embodiment 3 of the invention is coated on release paper, the leveling property of the emulsion is good, a coating is formed after drying, and the dry adhesive amount is 60g/m2The coating does not turn white and swell after being washed by water at 60 ℃ for 1 hour through detection, the appearance of the scraped coating is still kept intact, the coating can be stretched by 2.6 times continuously (the length of the coating is stretched by 2.6 times without breaking by using a method for testing the peel strength of a stretching machine), the image-text of the 110 ℃ low-temperature transfer printing is complete, the printing performance is good, and the printing ink can not fall off and has bright color.
Example 4
(1) The weight ratio and the specific types of the raw materials are limited:
the melt index of the ethylene acrylic resin is 1300, and the melting point is 77 ℃;
the alkaline neutralizing agent is NaOH;
the leveling auxiliary agent is Glide 496;
the wax emulsion is oxidized polyethylene wax;
the plasticizer is dioctyl sebacate;
the defoaming agent is polyether modified organic silicon defoaming agent.
(2) The preparation method comprises the following steps:
adding soft water with the total water amount of 80 wt% into a reaction kettle, starting stirring, controlling the stirring speed to be 500r/min, adding 80 wt% of alkaline neutralizing agent and all plasticizers, stirring for 5min, adding all ethylene acrylic resin, controlling the temperature to be 98 ℃, and carrying out heat preservation reaction for 2 h; slowly dripping the residual 20 wt% of alkaline neutralizing agent at the speed of 5g/s, controlling the temperature of the emulsion to 95 ℃, and reacting for 0.5h under the condition of heat preservation; then adding the rest 20 wt% of soft water at the speed of 50g/s, controlling the temperature of the emulsion to be 100 ℃, and carrying out heat preservation reaction for 1 h; finally, cooling to 25 ℃, adding all the defoaming agent and the leveling auxiliary agent, uniformly mixing, and finally adding all the wax emulsion to obtain the aqueous low-temperature thermal transfer printing adhesive; the solid content of the obtained aqueous low-temperature thermal transfer printing adhesive is 27.5 wt%.
The aqueous low-temperature thermal transfer printing adhesive provided by the embodiment 4 of the invention is coated on a PET release film, the leveling property of the emulsion is good, a coating is formed after drying, and the dry adhesive amount is 50g/m2The coating does not turn white and swell after being washed by water at 50 ℃ for 1 hour through detection, the appearance of the scraped coating is still kept intact, the coating can be stretched by 2 times continuously (the coating is stretched by 2 times without breaking by using a method for testing the peel strength of a stretching machine), the image-text of the 120 ℃ low-temperature transfer printing is complete, the printing performance is good, and the printing ink can not fall off and has bright color.
Example 5
(1) The weight ratio and the specific types of the raw materials are limited:
the melt index of the ethylene acrylic resin is 300, and the melting point is 77 ℃;
the alkaline neutralizing agent is prepared from the following components in percentage by weight: 1 triethanolamine and KOH;
the leveling auxiliary agent is Glide 410;
the wax emulsion is oxidized polyethylene wax;
the plasticizer is dioctyl adipate;
the defoaming agent is polyether modified organic silicon defoaming agent.
(2) The preparation method comprises the following steps:
adding soft water accounting for 70 wt% of the total water into a reaction kettle, starting stirring, controlling the stirring speed to be 300r/min, adding 80 wt% of alkaline neutralizing agent and all plasticizers, stirring for 5min, adding all ethylene acrylic resin, controlling the temperature to be 92 ℃, and carrying out heat preservation reaction for 2 h; slowly dripping the residual 20 wt% of alkaline neutralizing agent at the speed of 5g/s, controlling the temperature of the emulsion to 98 ℃, and reacting for 1h under the condition of heat preservation; then adding the rest 30 wt% of soft water at the speed of 50g/s, controlling the temperature of the emulsion to be 95 ℃, and carrying out heat preservation reaction for 2 hours; finally, cooling to 25 ℃, adding all the defoaming agent and the leveling auxiliary agent, uniformly mixing, and finally adding all the wax emulsion to obtain the aqueous low-temperature thermal transfer printing adhesive; the solid content of the obtained water-based low-temperature thermal transfer printing adhesive is 25.5 wt%.
The water-based low-temperature thermal transfer printing adhesive provided by the embodiment 5 of the invention is coated on release paper, the leveling property of emulsion is good, a coating is formed after drying, and the dry adhesive amount is 70g/m2The coating does not turn white and swell after being washed by water at 60 ℃ for 1 hour through detection, the appearance of the scraped coating is still kept intact, the coating can be stretched by 2.2 times continuously (the length of the coating is stretched by 2.2 times without breaking by using a method for testing the peel strength of a stretching machine), the image-text of the 110 ℃ low-temperature transfer printing is complete, the printing performance is good, and the printing ink can not fall off and has bright color.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The water-based low-temperature thermal transfer printing adhesive is prepared from the following raw materials:
20-30 parts by weight of ethylene acrylic resin;
3-10 parts by weight of an alkaline neutralizing agent;
0.3-0.5 part by weight of a leveling assistant;
1-5 parts of wax emulsion;
1-3 parts by weight of a plasticizer;
0.01-0.05 part by weight of a defoaming agent;
65-80 parts by weight of water;
the plasticizer is selected from one or more of glycerol, dioctyl adipate and dioctyl sebacate.
2. The aqueous low-temperature thermal transfer adhesive according to claim 1, wherein the ethylene acrylic resin has a melt index of 300 to 1300 and a melting point of 75 to 78 ℃.
3. The aqueous low-temperature thermal transfer adhesive according to claim 1, wherein the basic neutralizing agent is one or more selected from the group consisting of ammonia, KOH, NaOH, and triethylamine.
4. The aqueous low-temperature thermal transfer adhesive according to claim 1, wherein the leveling aid is one or more selected from Glide 410, Wet KL 245 and Glide 496.
5. The aqueous low-temperature thermal transfer paste according to claim 1, wherein the wax emulsion is one or more selected from the group consisting of palm wax, polyethylene wax, oxidized polyethylene wax, and micro wax.
6. The preparation method of the aqueous low-temperature heat transfer adhesive according to any one of claims 1 to 5, comprising the following steps:
a) under the condition of stirring, mixing a first amount of water, a second amount of alkaline neutralizing agent and a plasticizer, adding ethylene acrylic resin, and carrying out a first reaction; then, dropwise adding the rest alkaline neutralizing agent at the speed of 4-6 g/s for carrying out a second reaction; then, adding the rest water at the speed of 45-55 g/s to carry out a third reaction; and cooling, adding a defoaming agent and a leveling auxiliary agent, uniformly mixing, and finally adding a wax emulsion to obtain the aqueous low-temperature thermal transfer printing adhesive.
7. The method according to claim 6, wherein the rotation speed of the stirring in step a) is 100 to 500 r/min; the mixing time of the first amount of water, the second amount of alkaline neutralizing agent and the plasticizer is 1-10 min.
8. The method of claim 6, wherein the first amount of water in step a) is 70 to 90 wt% of the total amount of water; the second amount of the alkaline neutralizing agent accounts for 70-80 wt% of the total amount of the alkaline neutralizing agent.
9. The preparation method according to claim 6, wherein the temperature of the first reaction in step a) is 90-100 ℃ and the time is 1-2 h;
the temperature of the second reaction is 90-100 ℃, and the time is 0.5-1 h;
the temperature of the third reaction is 90-100 ℃, and the time is 1-2 h.
10. The method according to claim 6, wherein the cooling temperature in step a) is 20 to 30 ℃.
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| CN202110394442.9A CN113025233A (en) | 2021-04-13 | 2021-04-13 | Water-based low-temperature heat transfer adhesive and preparation method thereof |
| PCT/CN2021/092002 WO2022217672A1 (en) | 2021-04-13 | 2021-05-07 | Water-based low-temperature heat transfer printing adhesive and preparation method therefor |
| CA3130987A CA3130987C (en) | 2021-04-13 | 2021-05-07 | Water-based low-temperature heat transfer printing adhesive and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6042931A (en) * | 1998-06-08 | 2000-03-28 | Avery Dennison Corporation | Heat-transfer label including improved acrylic adhesive layer |
| CN102876250A (en) * | 2012-09-24 | 2013-01-16 | 无锡市科麦特光电材料有限公司 | Ethylene acrylic glue for composite metal strip |
| CN109517566A (en) * | 2018-11-19 | 2019-03-26 | 香洋新材料（江苏）有限公司 | A kind of aqueous thermal transfer PP adhesive and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69941700D1 (en) * | 1998-06-18 | 2010-01-07 | Bostik Inc | SELF-SEALING ADHESIVE SYSTEM ON SYNTHETIC BASIS FOR PACKAGING |
| JP2000177252A (en) * | 1998-12-16 | 2000-06-27 | Dainippon Printing Co Ltd | Thermal transfer sheet |
| CN106381063B (en) * | 2016-08-30 | 2018-10-30 | 杭州天地数码科技股份有限公司 | A kind of heat transfer colour ribbon and preparation method thereof near side (ns) printing |
| CN111332056A (en) * | 2019-11-19 | 2020-06-26 | 江苏学泰印务有限公司 | Antibacterial corrosion-resistant heat transfer printing film and production process thereof |
-
2021
- 2021-04-13 CN CN202110394442.9A patent/CN113025233A/en active Pending
- 2021-05-07 WO PCT/CN2021/092002 patent/WO2022217672A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6042931A (en) * | 1998-06-08 | 2000-03-28 | Avery Dennison Corporation | Heat-transfer label including improved acrylic adhesive layer |
| CN102876250A (en) * | 2012-09-24 | 2013-01-16 | 无锡市科麦特光电材料有限公司 | Ethylene acrylic glue for composite metal strip |
| CN109517566A (en) * | 2018-11-19 | 2019-03-26 | 香洋新材料（江苏）有限公司 | A kind of aqueous thermal transfer PP adhesive and preparation method thereof |
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