CN111959178A - Decorative material and preparation method thereof - Google Patents
Decorative material and preparation method thereof Download PDFInfo
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- CN111959178A CN111959178A CN202011070093.7A CN202011070093A CN111959178A CN 111959178 A CN111959178 A CN 111959178A CN 202011070093 A CN202011070093 A CN 202011070093A CN 111959178 A CN111959178 A CN 111959178A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
- B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/52—Epoxy resins
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
- D21H17/57—Polyureas; Polyurethanes
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
- D21H27/38—Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2451/00—Decorative or ornamental articles
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a decorative material and a preparation method thereof. The decorative material comprises a plastic film, decorative paper and a coating which permeates into the decorative paper and is cured, wherein the coating comprises at least one of acrylic epoxy ester, acrylic novolac epoxy ester, polyurethane acrylate oligomer, polyester acrylate and an active monomer, the plastic film is attached to the upper surface of the decorative paper, and the plastic film is made of polypropylene. The decorative material reduces the occurrence of paper layering phenomenon in the using process, does not need low-temperature storage, has good flexibility, does not have obvious cracking phenomenon after being bent, and can be subjected to flat pasting, coating and modeling pasting treatment.
Description
Technical Field
The invention relates to the technical field of decorative materials, in particular to a decorative material and a preparation method thereof.
Background
The artificial board is a board made of wood or other non-wood plants as main raw materials through certain mechanical processing. Compared with solid wood boards, the artificial boards have the advantages of large breadth, stable size, good structure, convenient construction and the like. In order to improve the decorative effect of the artificial board, a decorative layer can be arranged on the surface of the artificial board, and the required patterns are printed on the decorative layer, so that the board surface has various wood grains or patterns, bright, smooth and other decorative effects, and simultaneously has higher heat resistance, cold resistance, wear resistance, moisture resistance and other properties.
Both PVC film and decorative paper can be used as facing material of artificial board. At present, patterns can be directly printed on a PVC film to be used as a decorative layer of an artificial board, but the PVC film has poor printing effect and has texture which is greatly different from the texture of a solid wood board. In order to further improve the printing effect of the decorative surface layer, decorative paper can be selected to replace a PVC film. The decorative paper is mainly prepared by taking wood pulp, titanium dioxide, printing ink and the like as raw materials, the artificial board produced by laminating the decorative paper has the characteristics of multiple patterns and varieties, bright colors, rich patterns and the like, the texture of the artificial board can be compared favorably with that of a solid wood board, the surface defect of the artificial board is overcome, and the phenomenon of abrasion and paper layering is easy to occur due to the fact that the strength and the wet strength of paper are not enough, so that the surface performance and the decorative effect of the final board product are influenced. The melamine resin impregnated paper is also a facing decorative paper which is commonly applied to the current artificial boards. After the decorative paper is impregnated with the melamine resin glue solution, the melamine resin glue solution can be used on the surface of an artificial board through drying and shearing, but the melamine impregnated paper needs to be stored at low temperature, and has the defects of high hardness, high brittleness, easy brittle fracture, no bending and no coating and modeling attaching treatment after being cured.
Therefore, in view of the current situation of the facing materials such as the artificial board, it is necessary to develop a novel facing material which is not easily delaminated, can realize a good printing effect, and has good flexibility.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the decorative material and the preparation method thereof, the decorative material has excellent surface performance, is not easy to delaminate, can realize good printing effect, has good flexibility, and can be subjected to flat pasting, cladding and modeling pasting treatment.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the decorative material comprises a plastic film, decorative paper and a coating which permeates into the decorative paper and is cured, wherein the coating comprises at least one of acrylic epoxy ester, acrylic novolac epoxy ester, polyurethane acrylate oligomer, polyester acrylate and an active monomer, the plastic film is attached to the upper surface of the decorative paper, and the plastic film is made of polypropylene.
The decorative material comprises the plastic film and the decorative paper, wherein the plastic film is attached to the upper surface of the decorative paper, so that the flexibility of the decorative material can be further improved, and the decorative material is favorably processed. In addition, oligomers or active monomer cured products such as acrylic epoxy ester, acrylic novolac epoxy ester, polyurethane acrylate oligomer, polyester acrylate and the like are arranged inside the decorative paper, so that the occurrence of paper layering phenomenon of the decorative paper in the using process can be effectively reduced, the peeling strength between the decorative paper and a plastic film is improved, the flexibility of the decorative material can be improved, the decorative paper does not crack obviously after being bent, and flat pasting, coating and modeling pasting treatment can be performed on the decorative paper.
The decorative paper is selected from base paper for impregnation without gum dipping, and the required pattern is printed on the decorative paper, so that the decorative paper has various wood grains or patterns.
With regard to the selection of the plastic film, the comparison shows that the polyethylene film has good flexibility, but relatively low strength and insufficient scratch resistance; the polyvinyl chloride film is selected from a soft polyvinyl chloride film or a hard polyvinyl chloride film, the soft polyvinyl chloride film has good weather resistance, but contains a plasticizer, a precipitation phenomenon may exist, and the scratch resistance and the stain resistance are poor; the hard polyvinyl chloride film has higher hardness, better scratch resistance and stain resistance, but insufficient weather resistance; the polyester film has higher hardness and good scratch resistance, but has poor flexibility, cannot be embossed for the second time and only can be used as a plain weave product; the polypropylene film is preferred in the invention by comprehensively considering the factors of flexibility, peeling strength, scratch resistance, pollution resistance, weather resistance and the like of the final decorative material, cost and the like.
The inventor finds that the flexibility and rigidity of main chain structures of different oligomers, the polarity of groups and the number of double bonds contained in the oligomers are different to a certain extent through tests, so that the fluidity and curing performance of the coating and the flexibility, hardness, wear resistance, weather resistance and other performances of a cured paint film are different, and even the plastic film is peeled off in the using process by adopting the unsuitable oligomers. The inventor discovers through screening that compared with other oligomers, the coating has better permeation effect in decorative paper by adopting at least one of acrylic epoxy ester, acrylic novolac epoxy ester, polyurethane acrylate oligomer and polyester acrylate, the bonding strength of the decorative paper and a polypropylene film is higher after curing, the decorative material obtained after curing has excellent flexibility and surface performance, and the peeling strength of the polypropylene plastic film and the decorative paper is higher.
The coating can also be prepared by directly adopting an active monomer without adding an oligomer, the prepared decorative material also has certain flexibility, and no obvious cracking phenomenon is generated after bending, but compared with acrylic acid epoxy ester, acrylic acid novolac epoxy ester, polyurethane acrylate oligomer and polyester acrylate, the peel strength of the decorative material obtained after curing by adopting the active monomer is slightly lower.
Preferably, the plastic film is a biaxially stretched film or a cast film, and the plastic film comprises a main plastic film layer and at least one hot melt adhesive layer, the main plastic film layer is a polypropylene film, the plastic film is attached to the upper surface of the decorative paper through the hot melt adhesive layer, and the main plastic film layer is selected from polypropylene films.
Preferably, the upper surface of the plastic film is provided with a top coat layer to improve the surface performance of the decorative material, and the components of the top coat layer can be adjusted according to the requirements of the application field on the surface performance of the decorative material.
Preferably, the top coat layer contains at least one of polyurethane resin and acrylate resin. According to the invention, the surface coating containing polyurethane resin or acrylic resin is arranged on the upper surface of the plastic film, so that the surface performance of the decorative material can be improved, and the decorative material has excellent performances of surface scratch resistance, weather resistance, wear resistance, stain resistance and the like.
The invention also provides a preparation method of the decorative material, which comprises the following steps:
coating a primer on the upper surface or the lower surface of the decorative paper, wherein the primer penetrates into the decorative paper and is cured by electron beams, and then attaching a plastic film to the upper surface of the decorative paper;
or after the plastic film is attached to the upper surface of the decorative paper, the primer is coated on the lower surface of the decorative paper, and the primer is cured by electron beams after penetrating into the decorative paper.
The primer disclosed by the invention is cured by adopting the electron beams after completely permeating the decorative paper through the pores of the decorative paper, the preparation process is simple, and the prepared decorative material has good flexibility and has no obvious cracking phenomenon after being bent. Compared with the process of coating the base coating and then coating the plastic, the process of coating the plastic film and then coating the base coating is adopted, so that the peeling strength of the plastic film and the decorative paper is improved.
The invention adopts electron beam curing, the coating amount of the used coating is less, the coating penetrating into the decorative paper can be completely cured, and the curing speed is higher. If a thermal curing mode is adopted, the coating amount of the required coating is large, the solid content is low, the penetration speed is slow, and the drying and curing speed is slow. If UV curing is adopted, the coating penetrating into the decorative paper cannot be completely cured due to the fact that UV cannot penetrate through the paper, and the peeling strength of the plastic film and the decorative paper is low.
Preferably, the primer comprises at least one of an oligomer and a reactive monomer, wherein the oligomer comprises at least one of acrylic acid epoxy ester, acrylic acid novolac epoxy ester, polyurethane acrylate oligomer and polyester acrylate; the active monomer comprises at least one of a monofunctional monomer, a difunctional monomer and a polyfunctional monomer.
The reactive monomer can play a role in adjusting the viscosity of the coating and participating in electron beam curing reaction in the invention. The selection of the type of the active monomer needs to take account of the reaction activity and the performance of the decorative paper after curing, and further screening tests show that the monofunctional monomer is preferably at least one of alkoxylated phenol acrylate, 2- (2-ethoxyethoxy) ethyl acrylate, tetrahydrofuran acrylate and isodecyl acrylate, and compared with other types of monofunctional monomers, the monofunctional monomer is more suitable for the decorative paper, and the decorative paper after curing has certain hardness and keeps higher flexibility;
the bifunctional monomer is preferably at least one of alkoxy hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, 1, 6-hexanediol diacrylate and triethylene glycol dimethacrylate, is suitable for decorative paper, can be quickly cured, and has excellent flexibility after being cured;
the multifunctional monomer is preferably at least one of propoxylated (6) trimethylolpropane triacrylate, tris (2-hydroxyethyl) isocyanurate triacrylate, pentaerythritol tetraacrylate and dipentaerythritol pentaacrylate, and the trifunctional monomer of the above kind is more suitable for decorative paper than other kinds of trifunctional monomers, and the decorative paper after curing has better flexibility and good miscibility with the oligomer.
Based on the special requirements of some application fields on the application performance of the decorative material, the invention can also add the inorganic nano-fillers such as talcum powder, silicon powder and the like into the primer on the premise of not influencing the permeability and the flexibility of the decorative material, so that the coating has higher hardness, wear resistance, heat resistance and the like.
The invention can also add proper solvent into the primer to adjust the viscosity of the primer.
Preferably, the primer has a viscosity of 5 to 200cps, more preferably 10 to 30cps, so that the primer can completely penetrate into the interior of the decorative paper and be cured after completely penetrating into the decorative paper, solving the problem of paper delamination and improving the peel strength of the decorative paper from the plastic film. If the primer is lower than 5cps, the solvent content in the primer is too high, so that solvent residue is caused, or the monomer or low molecular weight prepolymer has too much amount, so that the product has brittle toughness and is not enough; if the viscosity of the primer is greater than 200cps, most of the primer remains on the surface of the decorative paper and cannot penetrate into the interior of the paper, and the peel strength between the decorative paper and the plastic film is low.
Preferably, the coating amount of the primer is 20 to 100g/m2More preferably 30 to 60g/m2The primer can completely permeate into the decorative paper, and the primer cannot remain too much on the lower surface of the decorative paper.
In addition, the viscosity and the coating amount of the primer are optimized, so that the toughness of the decorative material is improved after curing, the bonding strength between the decorative paper and the plastic film is improved, and the peeling between the decorative paper and the plastic film is avoided.
Preferably, the method for preparing the decorating material further comprises the following steps: and coating the surface coating on the upper surface of the plastic film, and curing by electron beams to form the surface coating.
Preferably, the topcoat material contains at least one of a polyurethane resin and an acrylate resin.
Preferably, the viscosity of the topcoat is from 10 to 5000cps, more preferably from 15 to 2500cps, which is beneficial to improve the surface properties of the topcoat. The invention can be coated by adopting the conventional coating processes such as an anilox roller, a micro-concave roller and the like, wherein when the anilox roller coating process is adopted, the viscosity of the surface coating is preferably 1500-2500 cps; when the gravure coating process is selected, the viscosity of the topcoat is preferably 10 to 50cps, more preferably 15 to 50 cps.
The invention can also add solvent in the top coating to adjust the viscosity of the top coating.
The thickness of the top coat in the present invention is determined by the amount of the top coat applied, which is 10 to 40g/m2The surface performance of the decorative material can be improved in the range, and the waste of the surface coating can not be caused.
Preferably, the electron beam curing dosage is 5-50kGy, the running speed of the decorative material during curing is 10-200m/min, and the cured decorative material has good toughness and is not easy to cause paper delamination.
The invention also provides a decorative plate which comprises a base material and the decorative material attached to the surface of the base material. The decorative material of the present invention can be attached to various substrates to obtain a decorative sheet, and the type of the substrate is not particularly limited in the present invention, and may be selected from, for example, wood substrates such as plywood, fiberboard, particle board, and core board, inorganic nonmetal substrates, metal substrates, and plastic substrates.
The decorative board has good printing effect, has the characteristics of multiple colors and varieties, bright colors, rich patterns and the like, has texture comparable to that of a solid wood board, and has good scratch resistance and wear resistance.
Compared with the prior art, the invention has the beneficial effects that:
the decorative material comprises the plastic film and the decorative paper, wherein the decorative paper internally contains cured substances such as acrylic epoxy ester, acrylic novolac epoxy ester, polyurethane acrylate oligomer, polyester acrylate, active monomer and the like, so that the occurrence of paper layering phenomenon in the use process of the decorative paper can be effectively reduced, and the peeling strength of the plastic film and the decorative paper is improved.
The decorative material of the invention does not need to be stored at low temperature, has good toughness, and can be subjected to flat pasting, cladding and modeling pasting treatment.
The decorative material of the invention can realize excellent surface printing effect, and the texture of the decorative material can be comparable with that of a solid wood board.
The invention is beneficial to improving the surface performance and the flexibility of the product by optimizing the types of the plastic film and the coating components in the decorative material.
Drawings
Fig. 1 is a schematic structural view of a decorating material of example 1;
FIG. 2 is a schematic structural view of the decorating material of examples 2 and 3;
FIG. 3 is a schematic structural view of the decorating materials of examples 4 and 5;
FIG. 4 is a schematic structural view of the decorating materials of examples 6 to 10 and comparative examples 1 to 5;
FIG. 5 shows cracking after bending of a decorative material having a primer viscosity of 3cps selected in example 4;
FIG. 6 is a state in which the decorative material having a viscosity of 300cps selected as the primer in example 4 is peeled off from the substrate;
FIG. 7 is a view showing the case where the decorative material having a viscosity of 10cps selected as the primer is peeled off from the substrate in example 4;
in the figure, 1 is decorative paper, 2 is a surface coating and 3 is a plastic film.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples. It will be understood by those skilled in the art that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the examples, the experimental methods used were all conventional methods unless otherwise specified, and the materials, reagents and the like used were commercially available without otherwise specified.
The decorative papers of the following examples and comparative examples were selected from virgin impregnated papers having a thickness of 0.08 mm; the thickness of the plastic film was 0.04 mm.
The performance test method of the decorative material comprises the following steps:
flexibility: and (3) bending the decorative material, and observing whether the surface of the decorative material has obvious cracking phenomenon after conventional flat pasting, coating and modeling pasting treatment.
Wear resistance: testing according to a method for measuring the wear resistance of the 4.42 surface in GB/T17657-2013;
scratch resistance: testing according to a method for measuring the scratch resistance of the 4.39 surface in GB/T17657-2013;
stain resistance: the method is tested according to the method for measuring the stain resistance of the 4.41 surface in GB/T17657-2013, and the stain resistance of the decorative material is evaluated according to the stain resistance grade, wherein the stain resistance grade is as follows, and the stain resistance grade is as follows, wherein the stain resistance grade is as follows, the stain resistance grade is as follows: no obvious change exists; 4, level: slight variations in gloss and/or color; and 3, level: moderate change in gloss and/or color; and 2, stage: a significant change in gloss and/or color; level 1: surface deformations and/or blisters.
Hardness: testing is carried out according to GB/T6739-2006;
peeling test: the peel force was measured according to the method for measuring peel resistance of 4.20 in GB/T17657-2013, and the thickness of the decorative material peeled from the substrate was measured after the decorative material was peeled from the substrate, i.e., the peel thickness.
Example 1 selection of Electron Beam curing Process parameters
The decorative material comprises decorative paper 1 and a coating which is infiltrated into the interior of the decorative paper and cured, wherein the coating is polyurethane acrylate oligomer and alkoxylated phenol acrylate, as shown in figure 1.
The preparation method of the decorative material of the embodiment comprises the following steps:
(1) preparing a primer with the viscosity of 15cps, wherein the primer is a polyurethane acrylate oligomer and alkoxylated phenol acrylate, and the content of the alkoxylated phenol acrylate in the primer is 10 wt%;
(2) coating the primer at 40g/m2The coating amount of the coating is coated on the lower surface of the decorative paper, the primer completely permeates into the interior of the decorative paper and is cured by electron beams, the decorative material is obtained after the inspection is qualified, and the selected electron curing process parameters are respectively shown in table 1.
TABLE 1
Group of | dose/kGy | Running speed/m/ |
1 | 5 | 10 |
2 | 10 | 20 |
3 | 25 | 50 |
4 | 35 | 100 |
5 | 50 | 200 |
6 | 60 | 20 |
7 | 10 | 5 |
Tests show that the curing speed of the coating is influenced by the selection of electron beam curing parameters, so that the flexibility of the decorative material is changed, the decorative material prepared by the groups 1-5 has good flexibility, no surface crack exists after the decorative material is bent and is subjected to conventional flat pasting, coating and modeling pasting treatment, and the decorative material prepared by the groups 6-7 has obvious crack after being bent, so that the dose of electron beam curing is controlled to be 5-50kGy, and the running speed of the decorative material during curing is controlled to be 10-200 m/min.
Example 2 topcoat viscosity selection
A decorative material, as shown in fig. 2, comprising a decorative paper 1 and a coating which is infiltrated into the interior of the decorative paper and cured, wherein the coating is polyurethane acrylate oligomer and alkoxylated phenol acrylate; the upper surface of the decorative paper 1 is provided with a surface coating 2, and the surface coating 2 contains acrylic resin.
The preparation method of the decorative material of the embodiment comprises the following steps:
(1) preparing a primer with the viscosity of 15cps, wherein the primer is a polyurethane acrylate oligomer and alkoxylated phenol acrylate, and the content of the alkoxylated phenol acrylate in the primer is 10 wt%;
(2) coating the primer at 40g/m2The coating amount of (2) is coated on the lower surface or the upper surface of the decorative paper, and the primer completely permeates into the decorative paper and is cured by electron beams, wherein the dose of electron beam curing is 10kGy, and the running speed of the decorative paper during curing is 20 m/min;
(3) respectively preparing top coats with the viscosities of 10cps, 15cps, 50cps, 100 cps, 500cps, 1000 cps, 1500cps, 2500cps and 5000cps, wherein the top coats contain acrylate resin;
(4) coating the surface coating according to the proportion of 10g/m2The coating amount of (2) is applied to the upper surface of the decorative paper in the step (2), wherein 10, 15 and 50cps of surface coatings are respectively coated by a micro-concave roller, 100, 500, 1000, 1500, 2500 and 5000cps of surface coatings are respectively coated by an anilox roller, a surface coating is formed after electron beam curing, and the decorative material is obtained after inspection is qualified, wherein the dose of electron beam curing is 10kGy, and the running speed of the decorative material during curing is 20 m/min.
The decorative paper without the primary coating and the decorative material with the primary coating and the secondary coating is used as a control group, and the preparation method of the decorative material with the primary coating and the secondary coating is basically the same as that of the embodiment, except that the steps (3) to (4) are omitted. The scratch and abrasion resistance test was performed on the finishing material prepared by applying the primer to the lower surface of the decorative paper in this example, and the results are shown in table 2.
TABLE 2
Tests show that compared with a control group, the surface performance of the decorative paper is improved to a certain extent by performing surface coating or bottom coating on the decorative paper, wherein when the bottom coating is coated on the lower surface of the decorative paper, the surface coatings with the viscosities of 10cps, 15cps, 50cps, 100 cps, 500cps, 1000 cps, 1500cps, 2500cps and 5000cps are selected in the embodiment, and the prepared decorative material has good surface performance, particularly when the surface coating with the viscosity of 15cps to 2500cps is selected, the decorative material has good performances such as scratch resistance, wear resistance and the like, when the viscosity of the surface coating reaches 5000cps, the viscosity is too high, the coating difficulty is large, the coating is uneven, and the wear resistance of the surface coating is reduced. In addition, the decorative material prepared by the embodiment and subjected to surface coating and bottom coating is bent, and the surface of the decorative material is not cracked after conventional flat pasting, coating and modeling pasting treatment.
In addition, during the test, when the selected primer has the same viscosity, the primer has a better penetration effect when applied to the lower surface of the decorative paper than when applied to the upper surface of the decorative paper.
Example 3 topcoat application amount selection
The decorative material comprises decorative paper 1 and a coating which penetrates into the interior of the decorative paper and is cured, wherein the coating is acrylic novolac epoxy ester and trimethylolpropane triacrylate, as shown in figure 2; the upper surface of the decorative paper 1 is provided with a surface coating 2, and the surface coating 2 contains acrylic resin.
The preparation method of the decorative material of the embodiment comprises the following steps:
(1) preparing a primer with the viscosity of 15cps, wherein the primer is acrylic novolac epoxy ester and trimethylolpropane triacrylate, and the content of the trimethylolpropane triacrylate in the primer is 10 wt%;
(2) coating the primer at 40g/m2The coating amount of (2) is coated on the lower surface of the decorative paper, and the primer is finishedCuring the decorative paper by electron beams after the decorative paper is fully penetrated into the decorative paper, wherein the dose of electron beam curing is 10kGy, and the running speed of the decorative paper during curing is 20 m/min;
(3) respectively preparing a top coating with the viscosity of 1500cps, wherein the top coating contains acrylate resin;
(4) respectively coating the surface coating by using anilox rollers according to the weight ratio of 5, 10, 20, 25, 40 and 60g/m2The coating amount is coated on the upper surface of the decorative paper in the step (2), a surface coating is formed after electron beam curing, and the decorative material is obtained after the inspection is qualified, wherein the electron beam curing dosage is 10kGy, and the running speed of the decorative material during curing is 20 m/min.
The scratch and stain resistance tests were performed on the decorative material prepared in this example, and the results are shown in table 3.
TABLE 3
Coating amount of topcoat (g/m)2) | Scratch resistance (N) | Stain resistance rating |
5 | 0.1 | |
10 | 0.25 | Grade 5 |
20 | 0.3 | Grade 5 |
25 | 0.35 | Grade 5 |
40 | 0.5 | Grade 5 |
60 | 0.6 | Grade 5 |
Tests show that the coating amount of the selected top coating reaches 10g/m2When the coating is used, the surface coating formed after electron beam curing has excellent scratch resistance and stain resistance; the coating amount of the topcoat was 5g/m2In the process, the solidified surface coating has poor scratch resistance and stain resistance, and generates coffee pollution residue; the coating amount of the top coating reaches 60g/m2When the toughness of the cured product is reduced, the product is bent, flatly pasted, coated or molded and pasted, obvious cracking appears on the surface, and the cost is increased; therefore, the coating amount of the top coat of the present invention is controlled to 10 to 40g/m2。
EXAMPLE 4 primer viscosity selection
A decorative material, as shown in fig. 3, comprising a plastic film 3, a decorative paper 1 and a coating which is infiltrated into the interior of the decorative paper and cured, wherein the coating is polyurethane acrylate oligomer and dipropylene glycol diacrylate; the plastic film 3 is a biaxial stretching film and comprises a polypropylene film and at least one layer of hot melt adhesive layer, and the plastic film 3 is attached to the upper surface of the decorative paper 1 through the hot melt adhesive layer.
The preparation method of the decorative material of the embodiment comprises the following steps:
(1) respectively preparing primer with the viscosity of 3, 5, 10, 15, 25, 30, 100, 200 and 300cps, wherein the primer is polyurethane acrylate oligomer and dipropylene glycol diacrylate;
(2) attaching a plastic film to the upper surface of the decorative paper;
(3) the above primers were mixed at a ratio of 20g/m2The coating amount of the primer is coated on the lower surface of the decorative paper, the primer penetrates into the decorative paper and is cured by electron beams, wherein the dose of electron beam curing is 10kGy, the running speed of the paper during curing is 10m/min, and the decorative material is obtained after the inspection is qualified.
The decorative material without base coat is used as a comparison group, the structure and the preparation method of the comparison group are basically the same as those of the embodiment, and the difference is that the base coat is not coated on the surface of the test paper in the comparison group. The decorative material prepared in this example was subjected to a peeling test, and the results are shown in table 4.
TABLE 4
Viscosity (cps) of the primer | Sample peel thickness (mm) | Sample Peel force (N) |
Without priming | 0.07-0.08 | 0.8 |
3 | 0.05-0.06 | 1.6 |
5 | 0.04-0.05 | 3.8 |
10 | 0.04-0.05 | 4.5 |
15 | 0.04-0.05 | 4.7 |
25 | 0.04-0.05 | 4.4 |
30 | 0.04-0.05 | 4.5 |
100 | 0.04-0.05 | 3.6 |
200 | 0.04-0.05 | 3.0 |
300 | 0.05-0.06 | 1.7 |
The results in table 4 show that the peeling force of the decorating material subjected to priming is significantly higher than that of the control group, and the peeling thickness of the sample of the decorating material subjected to priming is significantly lower than that of the control group, because the decorating paper in the control group is not primed and the internal strength of the paper is low, the paper is easily peeled off along with the plastic film in the peeling test, the peeling strength of the decorating paper is significantly improved after the decorating paper is primed, the paper is not easily peeled off along with the plastic film in the peeling test, and particularly when the viscosity of the priming paint is 10-30cps, the peeling force is high and the base paint is not easily delaminated in use. In addition, when the primer with the viscosity of 3cps is coated on the lower surface of the decorative paper, most of the coating permeates the upper surface of the paper, the improvement effect on the paper strength is not obvious, the product is not brittle and has insufficient toughness, and the edge of the product after bending cracks seriously (figure 5); when the primer with the viscosity of 300cps is coated on the lower surface of the decorative paper, most of the primer can only remain on the lower surface of the decorative paper and cannot completely permeate into the decorative paper, and the decorative paper is peeled off after being attached to a wood substrate, so that the decorative paper can be easily peeled off from the substrate in a large area (figure 6); however, the primer having a viscosity of 10cps can completely penetrate into the decorative paper, and after curing, the primer is bonded to a wood substrate and then peeled off, so that it is difficult to peel the decorative paper from the substrate over a large area (fig. 7).
EXAMPLE 5 primer coating amount selection
A decorative material comprises a plastic film 3, decorative paper 1 and a coating which is infiltrated into the interior of the decorative paper and cured, wherein the resin is polyurethane acrylate oligomer and tetrahydrofuran acrylate; the upper surface of the decorative paper 1 is attached with a plastic film, the plastic film 3 is a casting film and comprises a polyethylene film and at least one layer of hot melt adhesive layer, and the plastic film 3 is attached to the upper surface of the decorative paper 1 through the hot melt adhesive layer.
The preparation method of the decorative material of the embodiment comprises the following steps:
(1) preparing a primer with the viscosity of 10cps, wherein the primer is a polyurethane acrylate oligomer and tetrahydrofuran acrylate, and the content of the tetrahydrofuran acrylate in the primer is 10 wt%;
(2) attaching a plastic film to the upper surface of the decorative paper;
(3) respectively coating the primer according to the weight percentages of 10, 20, 30, 40, 50, 60, 80, 100 and 110g/m2The coating amount of the coating is coated on the lower surface of the decorative paper, the coating penetrates into the interior of the decorative paper and is cured by electron beams, wherein the dose of electron beam curing is 10kGy, the running speed of the decorative paper during curing is 10m/min, and the decorative material is obtained after the decorative material is inspected to be qualified.
The decorative material prepared in this example was subjected to a peeling test, and the results are shown in table 5.
TABLE 5
Coating amount of primer (g/m)2) | Sample peel thickness (mm) | Sample Peel force (N) |
10 | 0.06-0.07 | 1.7 |
20 | 0.04-0.05 | 4.3 |
30 | 0.04-0.05 | 4.7 |
40 | 0.04-0.05 | 4.8 |
50 | 0.04-0.05 | 4.6 |
60 | 0.04-0.05 | 4.8 |
80 | 0.04-0.05 | 4.5 |
100 | 0.04-0.05 | 4.4 |
110 | 0.05-0.06 | 4.5 |
The coating amount of the primer was found to be 10, 20, 30, 40, 50, 60, 80, 100g/m2When the coating is used, the coating can completely permeate into the interior of the decorative paper, and the coating amount reaches 110g/m2When the decorative paper is used, part of the primer is remained on the surface of the decorative paper. After curing, the coating weight of the primer was 10g/m2The decorative material is easy to generate paper layering phenomenon; and the coating amount of the primer was 110g/m2The decorative material of (2) causes a paper embrittlement phenomenon, and increases the cost; the coating amount of the primer was 20, 30, 40, 50, 60, 80, 100g/m2The coating amount of the decorative material, especially the primer, of (1) is 30 to 60g/m2The decorative material of (2) has high peeling force.
Example 6
A decorative material, as shown in fig. 4, comprising a plastic film 3, a decorative paper 1 and a coating which penetrates into the interior of the decorative paper and is cured, wherein the coating is polyester acrylate and dipropylene glycol diacrylate; the upper surface of the decorative paper 1 is adhered with a plastic film, the plastic film 3 is a biaxial stretching film and comprises a polypropylene film and at least one layer of hot melt adhesive layer, and the plastic film 3 is adhered to the upper surface of the decorative paper 1 through the hot melt adhesive layer; the upper surface of the plastic film is also provided with a top coating layer 2, and the top coating layer 2 contains acrylic resin.
The preparation method of the decorative material of the embodiment comprises the following steps:
(1) preparing a primer with the viscosity of 25cps, wherein the primer is polyester acrylate and dipropylene glycol diacrylate;
(2) attaching a plastic film to the upper surface of the decorative paper;
(3) respectively coating the primer at 35g/m2The coating amount of (2) is coated on the lower surface of the decorative paper, and the primer penetrates into the decorative paper and is cured by electron beams, wherein the dose of electron beam curing is 10kGy, and the running speed of the decorative paper during curing is 10 m/min;
(4) respectively preparing a top coating with the viscosity of 2000cps, wherein the top coating contains acrylate resin;
(5) the surface coating is coated by an anilox roller according to the proportion of 10g/m2The coating amount is coated on the upper surface of the plastic film, a top coating is formed after electron beam curing, and the decorative material is obtained after the inspection is qualified, wherein the dose of the electron beam curing is 10kGy, and the running speed of the decorative material during curing is 20 m/min.
The decorative material prepared in this example was subjected to hardness, abrasion resistance, scratch resistance, stain resistance tests and peeling tests, and the results are shown in table 6.
TABLE 6
Tests show that the decorative material prepared by the embodiment has good performances of scraping resistance, wear resistance and the like, has good flexibility, and has no surface cracking after being bent and subjected to conventional flat pasting, coating and modeling pasting treatment.
Example 7
A decorative material, as shown in figure 4, comprises a plastic film 3, decorative paper 1 and a coating which is infiltrated into the interior of the decorative paper and cured, wherein the coating is polyurethane acrylate oligomer and dipropylene glycol diacrylate; the upper surface of the decorative paper 1 is adhered with a plastic film, the plastic film 3 is a biaxial stretching film and comprises a polypropylene film and at least one layer of hot melt adhesive layer, and the plastic film 3 is adhered to the upper surface of the decorative paper 1 through the hot melt adhesive layer; the upper surface of the plastic film is also provided with a top coating layer 2, and the top coating layer 2 contains acrylic resin.
The preparation method of the decorative material of the embodiment comprises the following steps:
(1) preparing a primer with the viscosity of 25cps, wherein the primer is a polyurethane acrylate oligomer and dipropylene glycol diacrylate;
(2) attaching a plastic film to the upper surface of the decorative paper;
(3) respectively coating the primer at 35g/m2The coating amount of (2) is coated on the lower surface of the decorative paper, and the primer penetrates into the decorative paper and is cured by electron beams, wherein the dose of electron beam curing is 10kGy, and the running speed of the decorative paper during curing is 10 m/min;
(4) respectively preparing a top coating with the viscosity of 2000cps, wherein the top coating contains acrylate resin;
(5) the surface coating is coated by an anilox roller according to the proportion of 10g/m2The coating amount is coated on the upper surface of the plastic film, a top coating is formed after electron beam curing, and the decorative material is obtained after the inspection is qualified, wherein the dose of the electron beam curing is 10kGy, and the running speed of the decorative material during curing is 20 m/min.
The decorative material prepared in this example was subjected to hardness, abrasion resistance, scratch resistance, stain resistance tests and peel tests, and the results are shown in table 7.
TABLE 7
Tests show that the decorative material prepared by the embodiment has good performances of scraping resistance, wear resistance and the like, has good flexibility, and has no surface cracking after being bent and subjected to conventional flat pasting, coating and modeling pasting treatment.
Example 8
A decorative material, as shown in fig. 4, comprising a plastic film 3, a decorative paper 1 and a coating which is infiltrated into the interior of the decorative paper and cured, wherein the coating is alkoxylated phenol acrylate; the upper surface of the decorative paper 1 is adhered with a plastic film, the plastic film 3 is a biaxial stretching film and comprises a polypropylene film and at least one layer of hot melt adhesive layer, and the plastic film 3 is adhered to the upper surface of the decorative paper 1 through the hot melt adhesive layer; the upper surface of the plastic film is also provided with a top coating layer 2, and the top coating layer 2 contains acrylic resin.
The preparation method of the decorative material of the embodiment comprises the following steps:
(1) preparing a primer with the viscosity of 10cps, wherein the primer is alkoxylated phenol acrylate and does not contain oligomers;
(2) attaching a plastic film to the upper surface of the decorative paper;
(3) respectively coating the primer at 35g/m2The coating amount of (2) is coated on the lower surface of the decorative paper, and the primer penetrates into the decorative paper and is cured by electron beams, wherein the dose of electron beam curing is 10kGy, and the running speed of the decorative paper during curing is 10 m/min;
(4) respectively preparing a top coating with the viscosity of 2000cps, wherein the top coating contains acrylate resin;
(5) the surface coating is coated by an anilox roller according to the proportion of 10g/m2The coating amount is coated on the upper surface of the plastic film, a top coating is formed after electron beam curing, and the decorative material is obtained after the inspection is qualified, wherein the dose of the electron beam curing is 10kGy, and the running speed of the decorative material during curing is 20 m/min.
The decorative material prepared in this example was subjected to hardness, abrasion resistance, scratch resistance, stain resistance tests and peel tests, and the results are shown in table 8.
TABLE 8
Tests show that the decorative material prepared by the embodiment has good scraping resistance and wear resistance and good flexibility, and after the decorative material is bent and subjected to conventional flat pasting, coating and modeling pasting treatment, the surface of the decorative material has no crack, and the requirements of normal production and use performance are also met.
Example 9
A decorative material, as shown in fig. 4, comprising a plastic film 3, a decorative paper 1 and a coating which penetrates into the interior of the decorative paper and is cured, wherein the coating is polyester acrylate and dipropylene glycol diacrylate; the upper surface of the decorative paper 1 is adhered with a plastic film, the plastic film 3 is a biaxial stretching film and comprises a hard polyvinyl chloride film and at least one layer of hot melt adhesive layer, and the plastic film 3 is adhered to the upper surface of the decorative paper 1 through the hot melt adhesive layer; the upper surface of the plastic film is also provided with a top coating layer 2, and the top coating layer 2 contains acrylic resin.
The preparation method of the decorative material of the embodiment comprises the following steps:
(1) preparing a primer with the viscosity of 25cps, wherein the primer is polyester acrylate and dipropylene glycol diacrylate, and the content of the dipropylene glycol diacrylate in the primer is 10 wt%;
(2) attaching a plastic film to the upper surface of the decorative paper;
(3) respectively coating the primer at 35g/m2The coating amount of (2) is coated on the lower surface of the decorative paper, and the primer penetrates into the decorative paper and is cured by electron beams, wherein the dose of electron beam curing is 10kGy, and the running speed of the decorative paper during curing is 10 m/min;
(4) respectively preparing a top coating with the viscosity of 2000cps, wherein the top coating contains acrylate resin;
(5) the surface coating is coated by an anilox roller according to the proportion of 10g/m2The coating amount is coated on the upper surface of the plastic film, a top coating is formed after electron beam curing, and the decorative material is obtained after the inspection is qualified, wherein the dose of the electron beam curing is 10kGy, and the running speed of the decorative material during curing is 20 m/min.
The decorative material prepared in this example was subjected to hardness, abrasion resistance, scratch resistance, stain resistance tests and peeling tests, and the results are shown in table 9.
TABLE 9
Hardness of | Scratch resistance (N) | Wear-resistant revolution (r) | Stain resistance rating | Sample peel thickness (mm) | Sample Peel force (N) |
B | 0.62 | 263 | Grade 5 | 0.04-0.05 | 4.4 |
Tests show that the decorative material prepared by the embodiment has high hardness, good scraping resistance and stain resistance, good flexibility, no cracking after bending and no paper layering phenomenon, can be subjected to flat pasting, coating and modeling pasting treatment, but the decorative material product has insufficient weather resistance, and the plastic film is easy to turn yellow after long-time use.
Example 10
A decorative material, as shown in fig. 4, comprising a plastic film 3, a decorative paper 1 and a coating which penetrates into the interior of the decorative paper and is cured, wherein the coating is polyester acrylate and dipropylene glycol diacrylate; the upper surface of the decorative paper 1 is adhered with a plastic film, the plastic film 3 is a biaxial stretching film and comprises a polyester film and at least one layer of hot melt adhesive layer, and the plastic film 3 is adhered to the upper surface of the decorative paper 1 through the hot melt adhesive layer; the upper surface of the plastic film is also provided with a top coating layer 2, and the top coating layer 2 contains acrylic resin.
The preparation method of the decorative material of the embodiment comprises the following steps:
(1) preparing a primer with the viscosity of 25cps, wherein the primer is polyester acrylate and dipropylene glycol diacrylate, and the content of the dipropylene glycol diacrylate in the primer is 10 wt%;
(2) attaching a plastic film to the upper surface of the decorative paper;
(3) respectively coating the primer at 35g/m2The coating amount of (2) is coated on the lower surface of the decorative paper, and the primer penetrates into the decorative paper and is cured by electron beams, wherein the dose of electron beam curing is 10kGy, and the running speed of the decorative paper during curing is 10 m/min;
(4) respectively preparing a top coating with the viscosity of 2000cps, wherein the top coating contains acrylate resin;
(5) the surface coating is coated by an anilox roller according to the proportion of 10g/m2The coating amount is coated on the upper surface of the plastic film, a top coating is formed after electron beam curing, and the decorative material is obtained after the inspection is qualified, wherein the dose of the electron beam curing is 10kGy, and the running speed of the decorative material during curing is 20 m/min.
The decorative material prepared in this example was subjected to hardness, scratch resistance, stain resistance tests and peeling tests, and the results are shown in table 10.
Watch 10
Hardness of | Scratch resistance (N) | Stain resistance rating | Wear-resistant revolution (r) | Sample peel thickness (mm) | Sample Peel force (N) |
F | 0.81 | Grade 5 | 292 | 0.04-0.05 | 4.3 |
Tests show that the decorative material prepared by the embodiment has higher hardness and better surface property, but has poor flexibility, and basically cannot be subjected to secondary embossing treatment.
Compared with the effect of adopting different plastic films under the same condition, the invention selects the polypropylene film in consideration of the flexibility, peeling strength, scraping resistance, pollution resistance, weather resistance and other aspects of the final decorative material product and the cost and other factors.
Comparative example 1
A finishing material, as shown in fig. 4, comprising a plastic film 3, a decorative paper 1, and a UV-curable coating penetrating into the interior of the decorative paper, the UV-curable coating comprising a polyester acrylate, a dipropylene glycol diacrylate, and a photoinitiator; the upper surface of the decorative paper 1 is adhered with a plastic film, the plastic film 3 is a biaxial stretching film and comprises a polypropylene film and at least one layer of hot melt adhesive layer, and the plastic film 3 is adhered to the upper surface of the decorative paper 1 through the hot melt adhesive layer; the upper surface of the plastic film is also provided with a UV curing surface coating 2, and the UV curing surface coating 2 contains acrylic resin.
The preparation method of the decorative material of the comparative example comprises the following steps:
(1) preparing a primer with the viscosity of 25cps, wherein the primer contains polyester acrylate, dipropylene glycol diacrylate and a photoinitiator;
(2) respectively coating the primer at 35g/m2The coating amount of the primer is coated on the lower surface of the decorative paper, the primer is cured by ultraviolet light after penetrating into the decorative paper, and the running speed of the decorative paper during curing is 10 m/min;
(3) attaching a plastic film to the upper surface of the decorative paper in the step (2);
(4) respectively preparing a top coating with the viscosity of 2000cps, wherein the top coating contains acrylate resin;
(5) the surface coating is coated by an anilox roller according to the proportion of 10g/m2The coating amount is coated on the upper surface of the plastic film, a surface coating is formed after ultraviolet light curing, and the running speed of the decorative material during curing is 20m/min, so that the decorative material is obtained.
The decorative material prepared in this comparative example was subjected to a peeling test, and the results are shown in table 11.
TABLE 11
Sample peel thickness (mm) | Sample Peel force (N) |
0.06-0.07 | 1.2 |
It was found that the primer inside the decorative paper in this comparative example was not completely cured, and the paper was easily peeled off with the plastic film in the peeling test.
Comparative example 2
A finishing material, as shown in fig. 4, comprising a plastic film 3, a decorative paper 1, and a UV-curable coating penetrating into the interior of the decorative paper, the UV-curable coating comprising an amino acrylate oligomer, dipropylene glycol diacrylate and a photoinitiator; the upper surface of the decorative paper 1 is adhered with a plastic film, the plastic film 3 is a biaxial stretching film and comprises a polypropylene film and at least one layer of hot melt adhesive layer, and the plastic film 3 is adhered to the upper surface of the decorative paper 1 through the hot melt adhesive layer; the upper surface of the plastic film is also provided with a UV curing surface coating 2, and the UV curing surface coating 2 contains acrylic resin.
The preparation method of the decorative material of the comparative example comprises the following steps:
(1) preparing a primer with a viscosity of 25cps, wherein the primer contains an amino acrylate oligomer, dipropylene glycol diacrylate and a photoinitiator;
(2) respectively coating the primer at 35g/m2The coating amount of the primer is coated on the lower surface of the decorative paper, the primer is cured by ultraviolet light after penetrating into the decorative paper, and the running speed of the decorative paper during curing is 10 m/min;
(3) attaching a plastic film to the upper surface of the decorative paper in the step (2);
(4) respectively preparing a top coating with the viscosity of 2000cps, wherein the top coating contains acrylate resin;
(5) the surface coating is coated by an anilox roller according to the proportion of 10g/m2The coating amount is coated on the upper surface of the plastic film, a surface coating is formed after ultraviolet light curing, and the running speed of the decorative material during curing is 20m/min, so that the decorative material is obtained.
The decorative material prepared in this comparative example was subjected to a peeling test, and the results are shown in table 12.
TABLE 12
Sample peel thickness (mm) | Sample Peel force (N) |
0.06-0.08 | 1.6 |
It was found that the decorative paper of this comparative example was poor in flexibility, and the paper was easily peeled off with the plastic film in the peeling test.
Comparative example 3
The decorative material comprises a plastic film 3, decorative paper 1 and a curing coating penetrating into the decorative paper, wherein the coating is polyester acrylate; the upper surface of the decorative paper 1 is adhered with a plastic film, the plastic film 3 is a biaxial stretching film and comprises a polypropylene film and at least one layer of hot melt adhesive layer, and the plastic film 3 is adhered to the upper surface of the decorative paper 1 through the hot melt adhesive layer; the upper surface of the plastic film is also provided with a thermosetting top coating 2, and the thermosetting top coating 2 contains acrylic resin.
The preparation method of the decorative material of the comparative example comprises the following steps:
(1) preparing a primer with the viscosity of 25cps, wherein the primer is polyester acrylate;
(2) respectively coating the primer at 35g/m2The coating amount of (2) is coated on the lower surface of the decorative paper, the primer penetrates into the interior of the decorative paper and is then subjected to heat curing, and the running speed of the decorative paper during curing is 10 m/min;
(3) attaching a plastic film to the upper surface of the decorative paper in the step (2);
(4) respectively preparing a top coating with the viscosity of 2000cps, wherein the top coating contains acrylate resin;
(5) the surface coating is coated by an anilox roller according to the proportion of 10g/m2The coating amount is coated on the upper surface of the plastic film, a surface coating is formed after thermal curing, and the running speed of the decorative material during curing is 20m/min, so that the decorative material is obtained.
The decorative material prepared in this comparative example was subjected to a peeling test, and the results are shown in table 13.
Watch 13
Sample peel thickness (mm) | Sample Peel force (N) |
0.06-0.07 | 2.1 |
It was found that the primer inside the decorative paper in this comparative example had a low solid content and was not completely cured, and the paper was easily peeled off with the plastic film in the peel test.
Comparative example 4
The decorating material comprises a plastic film 3, a decorating paper 1 and a coating which is infiltrated into the interior of the decorating paper and is cured, wherein the coating is ethoxylated pentaerythritol tetraacrylate; the upper surface of the decorative paper 1 is adhered with a plastic film, the plastic film 3 is a biaxial stretching film and comprises a polypropylene film and at least one layer of hot melt adhesive layer, and the plastic film 3 is adhered to the upper surface of the decorative paper 1 through the hot melt adhesive layer; the upper surface of the plastic film is also provided with a top coating layer 2, and the top coating layer 2 contains acrylic resin.
The preparation method of the decorative material of the comparative example comprises the following steps:
(1) preparing a primer with the viscosity of 10cps, wherein the primer is ethoxylated pentaerythritol tetraacrylate and does not contain oligomer;
(2) attaching a plastic film to the upper surface of the decorative paper;
(3) respectively coating the primer at 35g/m2The coating amount of (2) is coated on the lower surface of the decorative paper, and the primer penetrates into the decorative paper and is cured by electron beams, wherein the dose of electron beam curing is 10kGy, and the running speed of the decorative paper during curing is 10 m/min;
(4) respectively preparing a top coating with the viscosity of 2000cps, wherein the top coating contains acrylate resin;
(5) the surface coating is coated by an anilox roller according to the proportion of 10g/m2The coating amount is coated on the upper surface of the plastic film, a top coating is formed after electron beam curing, and the decorative material is obtained after the inspection is qualified, wherein the dose of the electron beam curing is 10kGy, and the running speed of the decorative material during curing is 20 m/min.
The decorative material prepared in this comparative example was subjected to hardness, abrasion resistance, scratch resistance, stain resistance tests and peel tests, and the results are shown in table 14.
TABLE 14
Compared with example 8, the decorative material of the comparative example has lower peel strength of the plastic film and the decorative paper, and the paper is easy to peel off along with the plastic film during a peel test.
Comparative example 5
A decorative material, as shown in fig. 4, comprising a plastic film 3, a decorative paper 1 and a coating which is infiltrated into the interior of the decorative paper and cured, wherein the coating is polyether acrylate and alkoxy hexanediol diacrylate; the upper surface of the decorative paper 1 is adhered with a plastic film, the plastic film 3 is a biaxial stretching film and comprises a polypropylene film and at least one layer of hot melt adhesive layer, and the plastic film 3 is adhered to the upper surface of the decorative paper 1 through the hot melt adhesive layer; the upper surface of the plastic film is also provided with a top coating layer 2, and the top coating layer 2 contains acrylic resin.
The preparation method of the decorative material of the comparative example comprises the following steps:
(1) preparing a primer with the viscosity of 25cps, wherein the primer is polyether acrylate and alkoxy hexanediol diacrylate;
(2) attaching a plastic film to the upper surface of the decorative paper;
(3) respectively coating the primer at 35g/m2The coating amount of (2) is coated on the lower surface of the decorative paper, and the primer penetrates into the decorative paper and is cured by electron beams, wherein the dose of electron beam curing is 10kGy, and the running speed of the decorative paper during curing is 10 m/min;
(4) respectively preparing a top coating with the viscosity of 2000cps, wherein the top coating contains acrylate resin;
(5) the surface coating is coated by an anilox roller according to the proportion of 10g/m2The coating amount is coated on the upper surface of the plastic film, a top coating is formed after electron beam curing, and the decorative material is obtained after the inspection is qualified, wherein the dose of the electron beam curing is 10kGy, and the running speed of the decorative material during curing is 20 m/min.
The decorative material prepared in this comparative example was subjected to hardness, abrasion resistance, scratch resistance, stain resistance tests and peel tests, and the results are shown in table 15.
Watch 15
Compared with example 6, the decorative material of the comparative example has poor flexibility, the peeling strength of the plastic film and the decorative paper is low, and the paper is easy to peel off along with the plastic film during a peeling test.
The decoration material prepared in the above embodiment may be printed with a desired pattern as needed to have various wood grains or patterns.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The decorative material is characterized by comprising a plastic film, decorative paper and a coating which permeates into the decorative paper and is solidified, wherein the coating comprises at least one of acrylic epoxy ester, acrylic novolac epoxy ester, polyurethane acrylate oligomer, polyester acrylate and an active monomer, the plastic film is attached to the upper surface of the decorative paper, and the plastic film is made of polypropylene.
2. The upholstery material as claimed in claim 1, wherein the plastic film is a biaxially stretched film or a cast film, and the plastic film comprises a main plastic film layer and at least one hot melt adhesive layer, the main plastic film layer being a polypropylene film.
3. The trim material of claim 1, wherein the upper surface of the plastic film is provided with a topcoat.
4. The trim material of claim 3, wherein the topcoat comprises at least one of a polyurethane resin and an acrylate resin.
5. The method for producing a decorative material as claimed in any one of claims 1 to 4, comprising the steps of:
coating a primer on the upper surface or the lower surface of the decorative paper, wherein the primer penetrates into the decorative paper and is cured by electron beams, and then attaching a plastic film to the upper surface of the decorative paper;
or after the plastic film is attached to the upper surface of the decorative paper, the primer is coated on the lower surface of the decorative paper, and the primer is cured by electron beams after penetrating into the decorative paper.
6. The method for preparing the decorating material as claimed in claim 5, wherein the primer includes at least one of oligomer and active monomer, the oligomer includes at least one of acrylic acid epoxy ester, acrylic acid novolac epoxy ester, polyurethane acrylate oligomer and polyester acrylate; the active monomer comprises at least one of a monofunctional monomer, a bifunctional monomer and a polyfunctional monomer; the monofunctional monomer is preferably at least one of alkoxylated phenol acrylate, 2- (2-ethoxyethoxy) ethyl acrylate, tetrahydrofuran acrylate and isodecyl acrylate; the bifunctional monomer is preferably at least one of alkoxy hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, 1, 6-hexanediol diacrylate and triethylene glycol dimethacrylate; the polyfunctional monomer is preferably at least one of propoxylated (6) trimethylolpropane triacrylate, tris (2-hydroxyethyl) isocyanurate triacrylate, pentaerythritol tetraacrylate and dipentaerythritol pentaacrylate.
7. The method for preparing decorating material according to claim 5, wherein the viscosity of the primer is 5 to 200cps, preferably 10 to 30 cps.
8. The method for preparing decorating material according to claim 5, wherein the coating amount of the primer is 20 to 100g/m2Preferably 30 to 60g/m2。
9. The method for producing a decorating material according to claim 5, further comprising the steps of: and coating the surface coating on the upper surface of the plastic film, and curing by electron beams to form the surface coating.
10. The method for producing a decorative material according to claim 9, wherein at least one of the following (a) to (d):
(a) the top coating contains at least one of polyurethane resin and acrylic resin;
(b) the viscosity of the topcoat is from 10 to 5000cps, preferably from 15 to 2500 cps;
(c) the coating amount of the top coating is 10-40g/m2;
(d) The electron beam curing dosage is 5-50kGy, and the running speed of the decorative material during curing is 10-200 m/min.
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