CN117019597A - Preparation method of yellowing-resistant shallow pattern highlight digital printing decorative artificial board - Google Patents
Preparation method of yellowing-resistant shallow pattern highlight digital printing decorative artificial board Download PDFInfo
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- CN117019597A CN117019597A CN202311010216.1A CN202311010216A CN117019597A CN 117019597 A CN117019597 A CN 117019597A CN 202311010216 A CN202311010216 A CN 202311010216A CN 117019597 A CN117019597 A CN 117019597A
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- Prior art keywords
- yellowing
- artificial board
- coating
- square meter
- resistant
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- 238000004383 yellowing Methods 0.000 title claims abstract description 66
- 238000007639 printing Methods 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 96
- 238000000576 coating method Methods 0.000 claims abstract description 96
- 238000005096 rolling process Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000003973 paint Substances 0.000 claims abstract description 20
- -1 acrylic ester Chemical class 0.000 claims abstract description 17
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 10
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 10
- 239000004593 Epoxy Substances 0.000 claims abstract description 10
- 229920002635 polyurethane Polymers 0.000 claims abstract description 8
- 239000004814 polyurethane Substances 0.000 claims abstract description 8
- 229920006150 hyperbranched polyester Polymers 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 6
- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 claims abstract 4
- 229940095102 methyl benzoate Drugs 0.000 claims abstract 2
- 230000005855 radiation Effects 0.000 claims description 95
- 239000000758 substrate Substances 0.000 claims description 32
- 238000001723 curing Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 18
- 229940124543 ultraviolet light absorber Drugs 0.000 claims description 16
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 16
- 238000007761 roller coating Methods 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000012752 auxiliary agent Substances 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 11
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical class C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims description 11
- 238000007665 sagging Methods 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 10
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 9
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 8
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 8
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 8
- 229920000570 polyether Polymers 0.000 claims description 8
- 229940068886 polyethylene glycol 300 Drugs 0.000 claims description 8
- 239000013530 defoamer Substances 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- 238000007766 curtain coating Methods 0.000 claims description 6
- 229910021485 fumed silica Inorganic materials 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Substances CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 5
- 238000003848 UV Light-Curing Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 230000002745 absorbent Effects 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 239000000454 talc Substances 0.000 claims description 4
- 235000012222 talc Nutrition 0.000 claims description 4
- 229910052623 talc Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002966 varnish Substances 0.000 claims description 3
- GTELLNMUWNJXMQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical class OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(CO)(CO)CO GTELLNMUWNJXMQ-UHFFFAOYSA-N 0.000 claims description 2
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 238000007641 inkjet printing Methods 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical group [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000391 magnesium silicate Substances 0.000 claims description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 2
- 235000019792 magnesium silicate Nutrition 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000011120 plywood Substances 0.000 claims description 2
- 229940096522 trimethylolpropane triacrylate Drugs 0.000 claims description 2
- 239000011347 resin Substances 0.000 abstract description 9
- 229920005989 resin Polymers 0.000 abstract description 9
- 239000000178 monomer Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000004132 cross linking Methods 0.000 abstract description 2
- 238000007781 pre-processing Methods 0.000 abstract 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- YLHXLHGIAMFFBU-UHFFFAOYSA-N methyl phenylglyoxalate Chemical group COC(=O)C(=O)C1=CC=CC=C1 YLHXLHGIAMFFBU-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- RMSGQZDGSZOJMU-UHFFFAOYSA-N 1-butyl-2-phenylbenzene Chemical group CCCCC1=CC=CC=C1C1=CC=CC=C1 RMSGQZDGSZOJMU-UHFFFAOYSA-N 0.000 description 3
- 229940009868 aluminum magnesium silicate Drugs 0.000 description 3
- WMGSQTMJHBYJMQ-UHFFFAOYSA-N aluminum;magnesium;silicate Chemical compound [Mg+2].[Al+3].[O-][Si]([O-])([O-])[O-] WMGSQTMJHBYJMQ-UHFFFAOYSA-N 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000005002 finish coating Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000007591 painting process Methods 0.000 description 2
- 238000000016 photochemical curing Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- JGLMVXWAHNTPRF-CMDGGOBGSA-N CCN1N=C(C)C=C1C(=O)NC1=NC2=CC(=CC(OC)=C2N1C\C=C\CN1C(NC(=O)C2=CC(C)=NN2CC)=NC2=CC(=CC(OCCCN3CCOCC3)=C12)C(N)=O)C(N)=O Chemical compound CCN1N=C(C)C=C1C(=O)NC1=NC2=CC(=CC(OC)=C2N1C\C=C\CN1C(NC(=O)C2=CC(C)=NN2CC)=NC2=CC(=CC(OCCCN3CCOCC3)=C12)C(N)=O)C(N)=O JGLMVXWAHNTPRF-CMDGGOBGSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- TZIHFWKZFHZASV-UHFFFAOYSA-N anhydrous methyl formate Natural products COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000015123 black coffee Nutrition 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000001261 isocyanato group Chemical group *N=C=O 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003419 tautomerization reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
- B05D7/08—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood using synthetic lacquers or varnishes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/57—Three layers or more the last layer being a clear coat
- B05D7/576—Three layers or more the last layer being a clear coat each layer being cured, at least partially, separately
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2502/00—Acrylic polymers
- B05D2502/005—Acrylic polymers modified
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a preparation method of a yellowing-resistant shallow pattern highlight digital printing decorative artificial board, which comprises the following steps: s1, preprocessing an artificial board base material; s2, digital printing processing; s3, adding hard primer and rolling; s4, coating the transparent primer by a forward roller and a reverse roller; s5, high-gloss clear finishing paint coating; according to the preparation method of the yellowing-resistant shallow pattern highlight digital printing decorative artificial board, polyurethane modified epoxy acrylic resin and hyperbranched polyester acrylic ester are selected as the resin, and methyl benzoate and other raw materials are selected as the photoinitiator, so that the yellowing resistance of the resin is better; and the resin and the monomer form more crosslinking points together, so that the double bond conversion rate is increased, better surface performance is achieved, and the yellowing resistance is improved to a certain extent.
Description
Technical Field
The invention relates to the technical field of UV (ultraviolet) photo-curing coating application, in particular to a preparation method of a yellowing-resistant shallow pattern highlight digital printing decorative artificial board.
Background
The surface decoration of the artificial board meets the surface performance, and meanwhile, the personalized decoration of the artificial board is highly valued by people. The personalized production and customization of the artificial board are realized by utilizing UV paint and a digital decorative image printing technology. At present, the UV digital jet printing artificial board is finished according to the conventional process and is used as a decorative material, most boards are easy to yellow in a sunlight irradiation area in the use process, and the overall decorative effect of the product is finally affected. In particular, the surface yellowing resistance of the high-gloss product produced by adopting the shallow pattern digital printing and curtain coating process is poor, and the conventional UV coating system and the conventional production process can not meet the yellowing resistance requirement of the product, so that improvement and promotion are needed. In production and experiments, the digital decorative single coating has better yellowing resistance, the coating below the digital decorative layer adopts common UV coating to modify the coating above the printing layer, including hardening primer, transparent primer, roller transparent primer before spraying and high-gloss finish paint, comprising screening basic composition raw materials such as yellowing-resistant oligomer resin, monomer, photoinitiator, additive and the like, and adding ultraviolet light absorber and the like or shielding agent and the like to synthesize the high-yellowing-resistant coating by chemical methods. The yellowing resistance of the digital printing decorative artificial board is improved through the optimization of the paint formula and the painting process, and the other surface properties of the product meet the corresponding standard requirements.
Therefore, providing a specific preparation method of the yellowing-resistant shallow pattern highlight digital printing decorative artificial board to obtain the improvement and solve the defects is a great problem to be solved at present.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a preparation method of a yellowing-resistant shallow pattern highlight digital printing decorative artificial board. The yellowing resistance of the digital printing decorative artificial board is improved through the optimization of the paint formula and the painting process, and the other surface properties of the product meet the corresponding standard requirements.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a preparation method of a yellowing-resistant shallow pattern highlight digital printing decorative artificial board comprises the following steps:
s1, pretreatment of an artificial board base material: sequentially coating UV adhesion primer, putty, transparent primer and white primer after sanding the artificial board substrate;
s2, digital printing processing: sanding the artificial board base material treated in the step S1, and then roll-coating an adhesive primer, wherein the coating weight is 15-20 g/square meter; and then carrying out ink-jet printing on shallow patterns, wherein the dosage of UV ink is 4-5 g/square meter, full curing is carried out by adopting ultraviolet radiation, the ultraviolet radiation intensity is 400-550mJ/c square meter, and the radiation time is 3-4 s.
S3, hardening primer roller coating: and (2) coating UV yellowing-resistant hardening primer on the artificial board substrate treated in the step (S2), wherein the coating weight is 15-25 g/square meter, and the artificial board substrate is semi-cured by ultraviolet radiation, wherein the radiation intensity of the semi-cured ultraviolet radiation is 150-200mJ/c square meter, and the radiation time is 2-3S.
S4, forward and reverse roller coating of the transparent primer: and (3) carrying out forward and reverse roller coating of UV yellowing-resistant transparent primer on the artificial board substrate treated in the step (S3), wherein the coating weight is 20-25 g/square meter, and carrying out full curing by adopting ultraviolet radiation, wherein the radiation intensity of the full curing ultraviolet is 400-550mJ/c square meter, and the radiation time is 3-4S.
S5, high-gloss clear finishing paint coating: sanding the artificial board base material treated in the step S4, and then coating transparent primer on the roller before UV yellowing resistance and showering, wherein the coating weight is 5-10 g/square meter; and then carrying out UV yellowing-resistant curtain coating high-gloss varnish coating, wherein the coating weight is 150-170 g/square meter, and an infrared level and UV curing mode is adopted, wherein the leveling temperature is as follows: leveling time at 60-80 ℃): 40-60s, ultraviolet radiation intensity of 400-550mJ/c square meter and radiation time of 6-8 s.
Preferably, in step S1, the specific process of pretreatment of the artificial board substrate includes the following steps:
s101: sanding and dedusting the fine surface shaving board or the plywood; the method comprises the steps of carrying out a first treatment on the surface of the
S102: uniformly roll-coating an adhesive primer on the artificial board substrate treated in the step S101, wherein the roll-coating amount is 15-20 g/square meter, and then uniformly roll-coating putty according to the roll-coating amount of 5-10 g/square meter, and performing semi-curing by adopting ultraviolet radiation, wherein the intensity of the semi-curing ultraviolet radiation is 150-200mJ/c square meter, and the radiation time is 2-3S;
s103: uniformly rolling putty on the artificial board substrate treated in the step S102, wherein the rolling coating amount is 5-10 g/square meter, then uniformly rolling transparent primer according to the rolling coating amount of 10-15 g/square meter, and after full curing by ultraviolet radiation, sanding and dedusting are carried out, the ultraviolet radiation intensity is 400-550mJ/c square meter, and the radiation time is 3-4S;
s104: uniformly rolling white primer on the artificial board substrate treated in the step S103, wherein the roll coating amount is 10-15 g/square meter, sanding and dedusting are carried out after full curing is carried out by adopting ultraviolet radiation, the ultraviolet radiation intensity is 400-550mJ/c square meter, and the radiation time is 3-4S.
Preferably, in step S3, the UV yellowing-resistant hard-added primer includes, by mass: 10-20% of hyperbranched polyester acrylate, 40-60% of modified epoxy acrylate, 10-20% of tripropylene glycol diacrylate, 0.1-0.5% of defoaming agent, 0.5-2% of dispersing agent, 0.1-0.5% of sagging prevention auxiliary agent, 0.1-0.5% of flatting agent, 3-6% of photoinitiator, 0.3-0.5% of fumed silica, 10-20% of transparent powder and 0.5-3% of ultraviolet light absorbent.
Preferably, in step S4, the UV yellowing-resistant transparent primer includes, by mass: 20-40% of modified epoxy acrylate, 10-20% of polyester acrylate, 20-40% of tripropylene glycol diacrylate, 0.1-0.5% of defoaming agent, 0.3-1.5% of dispersing agent, 0.3-1% of leveling agent, 0.1-0.5% of sagging prevention auxiliary agent, 3-6% of photoinitiator, 0.3-0.5% of fumed silica, 10-20% of transparent powder, 10-20% of talcum powder and 0.5-3% of ultraviolet light absorber.
Preferably, in step S5, the UV yellowing-resistant pre-showering roller transparent primer includes, by mass: 10-20% of modified epoxy acrylate, 10-20% of polyester acrylate, 20-40% of tripropylene glycol diacrylate, 10-20% of trimethylolpropane triacrylate, 0.1-0.5% of defoamer, 0.3-1.5% of dispersant, 0.3-1% of flatting agent, 0.1-0.5% of sagging prevention auxiliary agent, 3-6% of photoinitiator, 0.3-0.5% of fumed silica, 10-20% of transparent powder, 10-20% of talcum powder and 0.5-3% of ultraviolet light absorber.
Preferably, in step S5, the UV yellowing-resistant shower-coated high-gloss finish paint comprises the following components in percentage by mass: 40-60% of modified epoxy acrylate, 5-10% of hyperbranched polyester acrylate, 10-20% of 1, 6-hexanediol diacrylate, 10-20% of tripropylene glycol diacrylate, 10-20% of ethoxylated trimethylol propane triacrylate, 0.5-1.5% of defoaming agent, 3-6% of photoinitiator and 0.5-3% of ultraviolet light absorbent.
Preferably, the modified epoxy acrylic resin is polyurethane modified epoxy acrylic resin.
Preferably, the photoinitiator is selected from methyl benzoylformate, the defoamer is modified polysiloxane, the ultraviolet light absorber UV-1130 is benzotriazole mixture, and is selected from one or more of b- [3- (2-H-benzotriazole-2-yl) -4-hydroxy-5-tertiary butyl phenyl ] -propionic acid polyethylene glycol 300 ester, bis- { b- [3- (2-H-benzotriazole-2-yl) -4-hydroxy-5-tertiary butyl phenyl ] -propionic acid polyethylene glycol 300 ester and polyethylene glycol 300.
Preferably, the leveling agent is polysiloxane, the dispersing agent is polyether modified acrylic tube energy-based polydimethylsiloxane, and the sagging prevention auxiliary agent is polyamide wax.
Preferably, the transparent powder is composite silicate containing magnesium, aluminum and calcium, and the talcum powder is talcum of magnesium silicate mineral talcum family.
Compared with the prior art, the invention has the beneficial effects that:
1. the paint mainly comprises raw materials, wherein the resin is polyurethane modified epoxy acrylic resin and hyperbranched polyester acrylic ester, the photoinitiator is benzoyl methyl formate and other raw materials, and the yellowing resistance of the paint is better; and the resin and the monomer form more crosslinking points together, so that the double bond conversion rate is increased, better surface performance is achieved, and the yellowing resistance is improved to a certain extent.
2. The hydroxyl in the ultraviolet light absorber UV1130 reacts with isocyanato in the oligomer polyurethane modified epoxy acrylic resin to form stable chemical bonds which are embedded into polymer molecular chains and network structures, and the absorbed light energy is converted into heat energy through the ultraviolet light absorber UV1130 phenol-quinone type tautomer, so that the purpose of improving the yellowing resistance of the UV photo-curing coating is realized.
Drawings
FIG. 1 is a flow chart of a preparation process of the yellowing-resistant shallow pattern highlight digital printing decorative artificial board;
fig. 2 is a flow chart of the process for preparing the artificial board substrate of the invention.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the present invention provides a technical solution:
example 1
A preparation method of a yellowing-resistant shallow pattern highlight digital printing decorative artificial board comprises the following steps:
s1, pretreatment of an artificial board base material:
s101: sanding and dedusting the artificial board base material;
s102: uniformly roll-coating an adhesive primer on the artificial board substrate treated in the step S101, wherein the roll-coating amount is 15 g/square meter, and then uniformly roll-coating putty according to the roll-coating amount of 5 g/square meter, and performing semi-curing by adopting ultraviolet radiation, wherein the intensity of the semi-curing ultraviolet radiation is 150mJ/c square meter, and the radiation time is 2S;
s103: uniformly rolling putty on the artificial board substrate treated in the step S102, wherein the rolling coating amount is 5 g/square meter, then uniformly rolling transparent primer according to the rolling coating amount of 10 g/square meter, and after full curing by ultraviolet radiation, sanding and dedusting are carried out, wherein the ultraviolet radiation intensity is 400mJ/c square meter, and the radiation time is 3S;
s104: uniformly rolling white primer on the artificial board substrate treated in the step S103, wherein the rolling coating amount is 10 g/square meter, sanding and dedusting are carried out after full curing is carried out by adopting ultraviolet radiation, the ultraviolet radiation intensity is 400mJ/c square meter, and the radiation time is 3S;
s2, digital printing processing: sanding the artificial board base material treated in the step S104, and then roll-coating an adhesive primer, wherein the coating amount of the adhesive primer is 20 g/square meter; printing a white pattern image by using UV ink, wherein the dosage of the UV ink is 5 g/square meter, and performing full curing by adopting ultraviolet radiation, the radiation intensity is 450mJ/c square meter, and the radiation time is 3s;
s3, hardening primer roller coating: coating a UV yellowing-resistant hardening primer on the artificial board substrate treated in the step S2, wherein the coating weight is 15 g/square meter, the semi-cured ultraviolet radiation intensity is 200mJ/c square meter, and the radiation time is 2S;
s4, forward and reverse roller coating of the transparent primer: carrying out UV yellowing-resistant transparent primer forward and reverse roller coating on the artificial board substrate treated in the step S3, wherein the coating weight is 20 g/square meter, the radiation intensity of full-cured ultraviolet light is 550mJ/c square meter, and the radiation time is 3S;
s5, high-gloss clear finishing paint coating: sanding the artificial board base material treated in the step S4, and then coating transparent primer on the roller before UV yellowing resistance and showering, wherein the coating weight is 8 g/square meter; then carrying out UV yellowing-resistant curtain coating high-gloss clear finish coating, wherein the coating weight is 150 g/square meter, and an infrared level and UV curing mode is adopted, wherein the leveling temperature is as follows: leveling time is 40s at 80 ℃, UV radiation intensity is 550mJ/c square meter, and radiation time is 8s;
wherein:
the modified epoxy acrylate is polyurethane modified epoxy acrylic resin;
the defoamer is polyether modified dimethyl polysiloxane copolymer;
the dispersing agent is polyether modified acrylic tube energy-based polydimethylsiloxane;
the sagging prevention auxiliary agent is polyamide wax;
the leveling agent is acrylic polysiloxane;
the photoinitiator is methyl benzoyl formate;
the transparent powder is composite aluminum magnesium silicate;
the talcum powder is 3Mg.4SiO 2 ·H 2 O。
Example 2
A preparation method of a yellowing-resistant shallow pattern highlight digital printing decorative artificial board comprises the following steps:
s1, pretreatment of an artificial board base material:
s101: sanding and dedusting the artificial board base material;
s102: uniformly roll-coating an adhesive primer on the artificial board substrate treated in the step S101, wherein the roll-coating amount is 15 g/square meter, and then uniformly roll-coating putty according to the roll-coating amount of 5 g/square meter, and performing semi-curing by adopting ultraviolet radiation, wherein the intensity of the semi-curing ultraviolet radiation is 150mJ/c square meter, and the radiation time is 2S;
s103: uniformly rolling putty on the artificial board substrate treated in the step S102, wherein the rolling coating amount is 5 g/square meter, then uniformly rolling transparent primer according to the rolling coating amount of 10 g/square meter, and after full curing by ultraviolet radiation, sanding and dedusting are carried out, wherein the ultraviolet radiation intensity is 400mJ/c square meter, and the radiation time is 3S;
s104: uniformly rolling white primer on the artificial board substrate treated in the step S103, wherein the rolling coating amount is 10 g/square meter, sanding and dedusting are carried out after full curing is carried out by adopting ultraviolet radiation, the ultraviolet radiation intensity is 400mJ/c square meter, and the radiation time is 3S;
s2, digital printing processing: sanding the artificial board base material treated in the step S104, and then roll-coating an adhesive primer, wherein the coating amount of the adhesive primer is 20 g/square meter; printing a white pattern image by using UV ink, wherein the dosage of the UV ink is 5 g/square meter, and performing full curing by adopting ultraviolet radiation, the radiation intensity is 450mJ/c square meter, and the radiation time is 3s;
s3, hardening primer roller coating: coating a UV yellowing-resistant hardening primer on the artificial board substrate treated in the step S2, wherein the coating weight is 15 g/square meter, the semi-cured ultraviolet radiation intensity is 200mJ/c square meter, and the radiation time is 2S;
s4, forward and reverse roller coating of the transparent primer: carrying out UV yellowing-resistant transparent primer forward and reverse roller coating on the artificial board substrate treated in the step S3, wherein the coating weight is 20 g/square meter, the radiation intensity of full-cured ultraviolet light is 550mJ/c square meter, and the radiation time is 3S;
s5, high-gloss clear finishing paint coating: sanding the artificial board base material treated in the step S4, and then coating transparent primer on the roller before UV yellowing resistance and showering, wherein the coating weight is 8 g/square meter; then carrying out UV yellowing-resistant curtain coating high-gloss clear finish coating, wherein the coating weight is 150 g/square meter, and an infrared level and UV curing mode is adopted, wherein the leveling temperature is as follows: leveling time is 40s at 80 ℃, UV radiation intensity is 550mJ/c square meter, and radiation time is 8s;
wherein:
the modified epoxy acrylate is polyurethane modified epoxy acrylic resin;
the defoamer is polyether modified dimethyl polysiloxane copolymer;
the dispersing agent is polyether modified acrylic tube energy-based polydimethylsiloxane;
the sagging prevention auxiliary agent is polyamide wax;
the leveling agent is acrylic polysiloxane;
the photoinitiator is methyl benzoyl formate;
the transparent powder is composite aluminum magnesium silicate;
the talcum powder is 3Mg.4SiO2.H2O;
the ultraviolet light absorber is polyethylene glycol 300.
Example 3
A preparation method of a yellowing-resistant shallow pattern highlight digital printing decorative artificial board comprises the following steps: s1, pretreatment of an artificial board base material:
s101: sanding and dedusting the artificial board base material;
s102: uniformly roll-coating an adhesive primer on the artificial board substrate treated in the step S101, wherein the roll-coating amount is 15 g/square meter, and then uniformly roll-coating putty according to the roll-coating amount of 5 g/square meter, and performing semi-curing by adopting ultraviolet radiation, wherein the intensity of the semi-curing ultraviolet radiation is 150mJ/c square meter, and the radiation time is 2S;
s103: uniformly rolling putty on the artificial board substrate treated in the step S102, wherein the rolling coating amount is 5 g/square meter, then uniformly rolling transparent primer according to the rolling coating amount of 10 g/square meter, and after full curing by ultraviolet radiation, sanding and dedusting are carried out, wherein the ultraviolet radiation intensity is 400mJ/c square meter, and the radiation time is 3S;
s104: uniformly rolling white primer on the artificial board substrate treated in the step S103, wherein the rolling coating amount is 10 g/square meter, sanding and dedusting are carried out after full curing is carried out by adopting ultraviolet radiation, the ultraviolet radiation intensity is 400mJ/c square meter, and the radiation time is 3S;
s2, digital printing processing: sanding the artificial board base material treated in the step S104, and then roll-coating an adhesive primer, wherein the coating amount of the adhesive primer is 20 g/square meter; printing a white pattern image by using UV ink, wherein the dosage of the UV ink is 5 g/square meter, and performing full curing by adopting ultraviolet radiation, the radiation intensity is 450mJ/c square meter, and the radiation time is 3s;
s3, hardening primer roller coating: coating a UV yellowing-resistant hardening primer on the artificial board substrate treated in the step S2, wherein the coating weight is 15 g/square meter, the semi-cured ultraviolet radiation intensity is 200mJ/c square meter, and the radiation time is 2S;
s4, forward and reverse roller coating of the transparent primer: carrying out UV yellowing-resistant transparent primer forward and reverse roller coating on the artificial board substrate treated in the step S3, wherein the coating weight is 20 g/square meter, the radiation intensity of full-cured ultraviolet light is 550mJ/c square meter, and the radiation time is 3S;
s5, high-gloss clear finishing paint coating: sanding the artificial board base material treated in the step S4, and then coating transparent primer on the roller before UV yellowing resistance and showering, wherein the coating weight is 8 g/square meter; then carrying out UV yellowing-resistant curtain coating high-gloss clear finish coating, wherein the coating weight is 150 g/square meter, and an infrared level and UV curing mode is adopted, wherein the leveling temperature is as follows: leveling time is 40s at 80 ℃, UV radiation intensity is 550mJ/c square meter, and radiation time is 8s;
wherein:
the modified epoxy acrylate is polyurethane modified epoxy acrylic resin; the defoamer is polyether modified dimethyl polysiloxane copolymer;
the dispersing agent is polyether modified acrylic tube energy-based polydimethylsiloxane; the sagging prevention auxiliary agent is polyamide wax;
the leveling agent is acrylic polysiloxane;
the photoinitiator is methyl benzoyl formate;
the transparent powder is composite aluminum magnesium silicate;
the talcum powder is 3Mg.4SiO2.H2O;
the ultraviolet light absorber is b- [3- (2-H-benzotriazole-2-yl) -4-hydroxy-5-tertiary butyl phenyl ] -propionic acid polyethylene glycol 300 ester.
The yellowing resistance, paint film adhesion, paint film hardness and paint film abrasion resistance of examples 1-3 were tested with reference to the relevant methods in GB/T37005-2018, paint veneer manmade Board. According to LY/T1658-2015 'directly printing artificial board', the stain resistance of a paint film is tested, the contact time of distilled water and black coffee is 16h, the contact time of ethanol is 1h, and the paint film is compared with the physicochemical properties required by standards GB/T37005-2018 and LY/T1658-2015, and the measurement results are shown in the following table:
the test results in the table show that the ultraviolet light absorber is not added in the example 1 compared with the example 2 and the example 3, the difference delta E between the Huang Bianse resistance values in the example 3 is minimum, and the aim of improving the yellowing resistance of the UV light-cured coating is fulfilled as the addition amount of the ultraviolet light absorber is increased, more ultraviolet light absorber is embedded into a polymer molecular chain and a network structure in a chemical bond form, and the tautomerism phenomenon is shown by the fact that hydroxyl-imino groups in the ultraviolet light absorber can be quickly migrated reversibly, and more ultraviolet light is absorbed. In addition, the adhesive force, hardness and surface contamination resistance of the paint film of 3 embodiments exceed the standard requirements, which indicates that the modified resin, the hyperbranched resin and the monomer are selected to jointly form a plurality of chemical crosslinking points, and the interface binding force is strong. The analysis from the table 1 also shows that 3 examples have excellent light fastness performance, and the yellowing resistance of the example 3 can meet the corresponding national standard, which indicates that the light aging resistance of the light pattern high light type digital printing decorative artificial board is improved by screening proper resin, monomer and additive and adding ultraviolet light absorber and other chemical methods to synthesize the high yellowing resistance coating.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The preparation method of the yellowing-resistant shallow pattern highlight digital printing decorative artificial board is characterized by comprising the following steps of:
s1, pretreatment of an artificial board base material: sequentially coating UV adhesion primer, putty, transparent primer and white primer after sanding the artificial board substrate;
s2, digital printing processing: sanding the artificial board base material treated in the step S1, and then roll-coating an adhesive primer, wherein the coating weight is 15-20 g/square meter; carrying out ink-jet printing on shallow patterns, wherein the dosage of UV ink is 4-5 g/square meter, carrying out full curing by adopting ultraviolet radiation, the intensity of the ultraviolet radiation is 400-550mJ/c square meter, and the radiation time is 3-4 s;
s3, hardening primer roller coating: coating UV yellowing-resistant hardening primer on the artificial board substrate treated in the step S2, wherein the coating weight is 15-25 g/square meter, and the artificial board substrate is semi-cured by ultraviolet radiation, wherein the radiation intensity of the semi-cured ultraviolet is 150-200mJ/c square meter, and the radiation time is 2-3S;
s4, forward and reverse roller coating of the transparent primer: carrying out UV yellowing-resistant transparent primer forward and reverse roller coating on the artificial board substrate treated in the step S3, wherein the coating weight is 20-25 g/square meter, carrying out full curing by adopting ultraviolet radiation, and the radiation intensity of the full curing ultraviolet is 400-550mJ/c square meter, and the radiation time is 3-4S;
s5, high-gloss clear finishing paint coating: sanding the artificial board base material treated in the step S4, and then coating transparent primer on the roller before UV yellowing resistance and showering, wherein the coating weight is 5-10 g/square meter; and then carrying out UV yellowing-resistant curtain coating high-gloss varnish coating, wherein the coating weight is 150-170 g/square meter, and an infrared level and UV curing mode is adopted, wherein the leveling temperature is as follows: leveling time at 60-80 ℃): 40-60s, ultraviolet radiation intensity of 400-550mJ/c square meter and radiation time of 6-8 s.
2. The method for preparing the yellowing-resistant shallow pattern highlight digital printing decorative artificial board according to claim 1, wherein in step S1, the specific process of pretreatment of the artificial board substrate specifically comprises:
s101: sanding and dedusting the fine surface shaving board or the plywood;
s102: uniformly roll-coating an adhesive primer on the artificial board substrate treated in the step S101, wherein the roll-coating amount is 15-20 g/square meter, and then uniformly roll-coating putty according to the roll-coating amount of 5-10 g/square meter, and performing semi-curing by adopting ultraviolet radiation, wherein the intensity of the semi-curing ultraviolet radiation is 150-200mJ/c square meter, and the radiation time is 2-3S;
s103: uniformly rolling putty on the artificial board substrate treated in the step S102, wherein the rolling coating amount is 5-10 g/square meter, then uniformly rolling transparent primer according to the rolling coating amount of 10-15 g/square meter, and after full curing by ultraviolet radiation, sanding and dedusting are carried out, the ultraviolet radiation intensity is 400-550mJ/c square meter, and the radiation time is 3-4S;
s104: uniformly rolling white primer on the artificial board substrate treated in the step S103, wherein the roll coating amount is 10-15 g/square meter, sanding and dedusting are carried out after full curing is carried out by adopting ultraviolet radiation, the ultraviolet radiation intensity is 400-550mJ/c square meter, and the radiation time is 3-4S.
3. The method for preparing the yellowing-resistant shallow pattern highlight digital printing decorative artificial board according to claim 1, wherein in the step S3, the UV yellowing-resistant hardening primer comprises the following components in percentage by mass: 10-20% of hyperbranched polyester acrylate, 40-60% of modified epoxy acrylate, 10-20% of tripropylene glycol diacrylate, 0.1-0.5% of defoaming agent, 0.5-2% of dispersing agent, 0.1-0.5% of sagging prevention auxiliary agent, 0.1-0.5% of flatting agent, 3-6% of photoinitiator, 0.3-0.5% of fumed silica, 10-20% of transparent powder and 0.5-3% of ultraviolet light absorbent.
4. The method for preparing the yellowing-resistant shallow pattern highlight digital printing decorative artificial board according to claim 1, wherein in step S4, the UV yellowing-resistant transparent primer comprises the following components in percentage by mass: 20-40% of modified epoxy acrylate, 10-20% of polyester acrylate, 20-40% of tripropylene glycol diacrylate, 0.1-0.5% of defoaming agent, 0.3-1.5% of dispersing agent, 0.3-1% of leveling agent, 0.1-0.5% of sagging prevention auxiliary agent, 3-6% of photoinitiator, 0.3-0.5% of fumed silica, 10-20% of transparent powder, 10-20% of talcum powder and 0.5-3% of ultraviolet light absorber.
5. The method for preparing the yellowing-resistant shallow pattern highlight digital printing decorative artificial board according to claim 1, wherein in step S5, the UV yellowing-resistant pre-showering roller transparent primer comprises the following components in percentage by mass: 10-20% of modified epoxy acrylate, 10-20% of polyester acrylate, 20-40% of tripropylene glycol diacrylate, 10-20% of trimethylolpropane triacrylate, 0.1-0.5% of defoamer, 0.3-1.5% of dispersant, 0.3-1% of flatting agent, 0.1-0.5% of sagging prevention auxiliary agent, 3-6% of photoinitiator, 0.3-0.5% of fumed silica, 10-20% of transparent powder, 10-20% of talcum powder and 0.5-3% of ultraviolet light absorber.
6. The method for preparing the yellowing-resistant shallow pattern highlight digital printing decorative artificial board according to claim 1, wherein in step S5, the UV yellowing-resistant shower-coated highlight varnish comprises the following components in percentage by mass: 40-60% of modified epoxy acrylate, 5-10% of hyperbranched polyester acrylate, 10-20% of 1, 6-hexanediol diacrylate, 10-20% of tripropylene glycol diacrylate, 10-20% of ethoxylated trimethylol propane triacrylate, 0.5-1.5% of defoaming agent, 3-6% of photoinitiator and 0.5-3% of ultraviolet light absorbent.
7. The method for preparing the yellowing-resistant shallow-pattern highlight digital printing decorative artificial board according to any one of claims 3 to 6, wherein the modified epoxy acrylic resin is polyurethane modified epoxy acrylic resin.
8. The method for preparing the yellowing-resistant shallow pattern highlight digital printing decorative artificial board according to any one of claims 3 to 6, wherein the photoinitiator is methyl benzoate, the defoamer is modified polysiloxane, the ultraviolet light absorber UV-1130 is benzotriazole mixture, and is one or more selected from b- [3- (2-H-benzotriazole-2-yl) -4-hydroxy-5-tert-butylphenyl ] -propionic acid polyethylene glycol 300 ester, bis- { b- [3- (2-H-benzotriazole-2-yl) -4-hydroxy-5-tert-butylphenyl ] -propionic acid } -polyethylene glycol 300 ester and polyethylene glycol 300.
9. The method for preparing the yellowing-resistant shallow pattern highlight digital printing decorative artificial board according to any one of claims 3 to 5, wherein the leveling agent is polysiloxane, the dispersing agent is polyether modified acrylic tube energy-based polydimethylsiloxane, and the sagging-resistant auxiliary agent is polyamide wax.
10. The method for preparing the yellowing-resistant shallow pattern highlight digital printing decorative artificial board according to any one of claims 3-5, wherein the transparent powder is composite silicate containing magnesium, aluminum and calcium, and the talcum powder is magnesium silicate mineral talcum family talcum.
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