Glaze-sensitive coating, coating process and decorative floor

Abstract

The invention discloses a glaze-sensitive coating, a coating process and a decorative floor, and relates to the field of floors, the glaze-sensitive coating comprises a finish paint layer and a primer layer which are laminated, and the finish paint layer comprises matrix resin, a wear-resistant reinforcing agent, an antibacterial agent, a cross-linking agent, a light stabilizer and a solvent; the formula comprises the following components in parts by weight: 48-55 parts of matrix resin, 5-12 parts of a wear-resistant reinforcing agent, 1-3 parts of an antibacterial agent, 2-5 parts of a cross-linking agent, 0.5-1.5 parts of a light stabilizer and 15-25 parts of a solvent. The formula components of the primer layer comprise matrix resin, a wear-resistant reinforcing agent, an antibacterial agent, a thixotropic agent, a dispersing agent, a flatting agent and a solvent; the formula comprises the following components in parts by weight: 48-55 parts of matrix resin, 5-10 parts of a wear-resistant reinforcing agent, 1-2 parts of an antibacterial agent, 5-10 parts of a thixotropic agent, 1-2 parts of a dispersing agent, 0.5-1 part of a flatting agent and 15-25 parts of a solvent. The glazed paint can be coated on a plastic base material plate, so that a plastic base material floor in the prior art can present a glazed texture, and the decorative effect is better.

Description

Technical Field

[0001] The present invention relates to the field of flooring, in particular to a glaze coating, a coating process and a decorative floor. Background Art

[0002] In order to give furniture wood surfaces a good appearance, paint is usually applied to the surface of the furniture wood, and a paint film is formed on the surface of the furniture wood by spraying or other methods. Ordinary paint is usually used. However, ordinary paint has a monotonous color and does not have the glaze effect of marble and other stones.

[0003] Currently, glaze mostly exists on the surface of stone materials such as marble and tiles, and is not suitable for plastic substrates with higher softness. There is an urgent need for personnel in this field to provide a glaze coating suitable for elastic floors. Summary of the Invention

[0004] The objects of the present invention include, for example, providing a glaze coating, a coating process and a decorative floor, which can make the plastic substrate floor of the prior art present a glaze texture and have a better decorative effect.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a glaze coating, comprising a topcoat layer and a primer layer stacked together, wherein:

[0007] The formula ingredients of the topcoat layer include base resin, wear-resistant enhancer, antibacterial agent, cross-linking agent, light stabilizer and solvent;

[0008] Calculated by weight, the formula ratio is 48-55 parts of base resin, 5-12 parts of wear-resistant enhancer, 1-3 parts of antibacterial agent, 2-5 parts of cross-linking agent, 0.5-1.5 parts of light stabilizer, and 15-25 parts of solvent.

[0009] The formula ingredients of the primer layer include base resin, wear-resistant enhancer, antibacterial agent, thixotropic agent, dispersant, leveling agent and solvent;

[0010] Calculated by weight, the formula ratio is 48-55 parts of base resin, 5-10 parts of wear-resistant enhancer, 1-2 parts of antibacterial agent, 5-10 parts of thixotropic agent, 1-2 parts of dispersant, 0.5-1 parts of leveling agent, and 15-25 parts of solvent.

[0011] In an optional embodiment, the base resin of the topcoat layer includes a silicone resin; the wear-resistant enhancer of the topcoat layer includes nano-corundum powder or nano-silicon carbide; the antibacterial agent of the topcoat layer includes zinc oxide, titanium dioxide or mildew-proofing agent PT430; the crosslinking agent of the topcoat layer includes epoxy soybean oil or TMPTA crosslinking agent; the light stabilizer of the topcoat layer includes a UV absorber or cerium dioxide particles.

[0012] In an optional embodiment, the base resin of the primer layer includes at least one of epoxy acrylate and polyurethane acrylate; the wear resistance enhancer of the primer layer includes nano-corundum powder or talc; the antibacterial agent of the primer layer includes zinc oxide; the thixotropic agent of the primer layer includes fumed silica or precipitated silica; the dispersant of the primer layer includes sodium polyacrylate; the leveling agent of the primer layer includes polysiloxane; and the solvent of the primer layer includes water or deionized water.

[0013] In a second aspect, the present invention provides a coating process, which is applied to the glaze coating according to any one of the aforementioned embodiments, and the coating process comprises the following steps:

[0014] Step s100: substrate pretreatment;

[0015] Step s200: applying a primer layer on the upper surface of the substrate;

[0016] Step s300: applying a topcoat layer on the upper surface of the primer layer.

[0017] In an optional embodiment, in step s100, the step of pre-treating the substrate includes performing corona treatment on the upper surface of the substrate to make the dyne value of the upper surface of the substrate ≥40.

[0018] In an optional embodiment, in step s200, the primer layer is applied in a step-by-step manner, wherein the thickness of the primer layer applied in the first step is 8-10 μm, and the thickness of the primer layer applied in the second step is 7-10 μm; and the total thickness of the primer layer after application is controlled to be 15-20 μm.

[0019] In an optional embodiment, in the step s300, after the primer layer is applied, the topcoat layer is applied in steps, wherein the thickness of the topcoat layer applied in the first step is 8-10 μm, the thickness of the topcoat layer applied in the second step is 10-12 μm, and the thickness of the topcoat layer applied in the third step is 12-15 μm, and the total thickness of the topcoat layer after application is controlled at 30-40 μm.

[0020] In an optional embodiment, in step s300, during the process of applying the topcoat layer step by step, the coating speed is gradually reduced.

[0021] In an optional embodiment, step s400 is further included after step s300, in which the surface of the coated topcoat layer is embossed.

[0022] In a third aspect, the present invention provides a decorative floor, comprising:

[0023] A substrate layer, a color film layer, a wear-resistant layer and a glaze layer made of the glaze paint described in any one of the aforementioned embodiments, wherein the color film layer covers the surface of the substrate layer, the wear-resistant layer covers the surface of the color film layer, and the glaze layer covers the surface of the wear-resistant layer.

[0024] The beneficial effects of the embodiments of the present invention include, for example:

[0025] In summary, the glaze coating provided in this embodiment includes a stacked topcoat layer and a primer layer. The primer layer and the topcoat layer can be applied step by step on the substrate using a coating process, so that the plastic substrate can also show a glaze effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 Schematic diagram of the decorative floor of this embodiment.

[0028] icon:

[0029] 100-base material layer; 200-color film layer; 300-wear-resistant layer; 400-glaze layer. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0036] This embodiment provides a glaze paint, which includes a topcoat layer and a primer layer stacked together, wherein:

[0037] The formulation ingredients of the topcoat layer include base resin, wear-resistant enhancer, antibacterial agent, cross-linking agent, light stabilizer, and solvent;

[0038] Calculated by weight, the formula ratio is 48-55 parts of base resin, 5-12 parts of wear-resistant enhancer, 1-3 parts of antibacterial agent, 2-5 parts of cross-linking agent, 0.5-1.5 parts of light stabilizer, and 15-25 parts of solvent.

[0039] The formula components of the primer layer include base resin, wear resistance enhancer, antibacterial agent, thixotropic agent, dispersant, leveling agent and solvent;

[0040] Calculated by weight, the formula ratio is 48-55 parts of base resin, 5-10 parts of wear-resistant enhancer, 1-2 parts of antibacterial agent, 5-10 parts of thixotropic agent, 1-2 parts of dispersant, 0.5-1 parts of leveling agent, and 15-25 parts of solvent.

[0041] Optionally, the base resin of the topcoat layer includes an organic silicone resin, for example, at least methyltrimethoxysilane.

[0042] Optionally, the wear-resistant enhancer of the topcoat layer includes nano-corundum powder or nano-silicon carbide.

[0043] Optionally, the antimicrobial agent of the topcoat layer includes zinc oxide, titanium dioxide or mildew-proofing agent PT430.

[0044] Optionally, the crosslinking agent of the topcoat layer includes epoxidized soybean oil or TMPTA crosslinking agent.

[0045] In some embodiments, the formula ratio is 3-5 parts by weight of epoxidized soybean oil and 2-3 parts of TMPTA crosslinker. This can improve heat resistance, water resistance, and dimensional stability, and can be used in bathroom spaces, etc.

[0046] Optionally, the light stabilizer of the topcoat layer includes a UV absorber or cerium dioxide particles, which can effectively delay the yellowing of the surface.

[0047] Optionally, the base resin of the primer layer includes at least one of epoxy acrylate and polyurethane acrylate. For example, in some embodiments, the base resin of the primer layer includes epoxy acrylate, or the base resin of the primer layer includes polyurethane acrylate, or the base resin of the primer layer includes both epoxy acrylate and polyurethane acrylate.

[0048] Optionally, the wear resistance enhancer of the primer layer includes nano corundum powder or talc powder.

[0049] Optionally, the antimicrobial agent of the primer layer comprises zinc oxide.

[0050] Optionally, the thixotropic agent of the primer layer includes fumed silica or precipitated silica.

[0051] Optionally, the dispersant of the primer layer includes sodium polyacrylate.

[0052] Optionally, the leveling agent of the primer layer includes polysiloxane.

[0053] Optionally, the solvent of the primer layer includes water or deionized water.

[0054] The glaze coating provided in this embodiment uses methyltrimethoxysilane in the topcoat layer, combined with a wear-resistant reinforcement system of nano-corundum powder or nano-silicon carbide to form a synergistic effect of hydrophobicity and wear resistance. The combination of TMPTA and epoxy soybean oil takes into account both heat resistance and environmental protection; at the same time, epoxy soybean oil (renewable resource) is used to replace the traditional solvent-based cross-linking agent, with VOC≤50g / L, which can reduce costs. In addition, the primer uses a composite matrix of epoxy acrylate and polyurethane acrylate to enhance the adhesion of the PVC substrate. The thixotropic agent and dispersant are optimized, and the synergistic dispersion system of precipitated silica and sodium polyacrylate effectively improves the problem of nanoparticle agglomeration.

[0055] In a second aspect, this embodiment provides a coating process for glaze coating, the coating process comprising the following steps:

[0056] Step s100: pre-treatment of the substrate, which may be a plastic plate.

[0057] Step s200: coating a primer layer on the upper surface of the substrate.

[0058] Step s300: applying a topcoat layer on the upper surface of the primer layer.

[0059] Step s400: performing embossing treatment on the surface of the coated topcoat layer.

[0060] In some embodiments, in step s100, the substrate pretreatment step includes performing corona treatment on the upper surface of the substrate to make the dyne value of the upper surface of the substrate ≥40, thereby enhancing the adhesion of the non-polar PP substrate.

[0061] In some embodiments, in step s200, a primer layer is applied in a step-by-step manner, wherein the first primer layer is applied to the surface of the substrate to a thickness of 8-10 μm, and the second primer layer is applied to a thickness of 7-10 μm; and the total thickness of the primer layer after application is controlled to be 15-20 μm. By applying the primer layer in steps, the substrate is fully covered while avoiding the accumulation of curing stress caused by an overly thick single layer. The coating process parameter can be 600 mJ / cm 2 →900mJ / cm 2 .

[0062] In some embodiments, in step s300, after the primer layer is applied, the topcoat layer is applied in steps, wherein the thickness of the first topcoat layer is 8-10 μm, which mainly closes the pores of the substrate and enhances adhesion; a low-viscosity coating (viscosity can be 20-30s) is used, and the coating speed is 15-20 m / min to ensure uniform coverage of the thin layer. The thickness of the second topcoat layer is 10-12 μm, which improves wear resistance and chemical resistance, and the coating speed is reduced to 10-15 m / min to enhance leveling. The thickness of the third topcoat layer is 12-15 μm, which optimizes gloss and anti-slip performance. The coating speed is further reduced to 5-10 m / min, and the glaze texture is formed in combination with the embossing process. The embossing pressure is 1.2 MPa and the texture depth is 20-50 μm. In addition, the total thickness of the topcoat layer is controlled at 30-40 μm after application. The topcoat is applied in three steps to reduce the risk of sagging, ensure a uniform paint film, and avoid bubbles or orange peel. The first topcoat is applied on top of the primer, the second topcoat is applied on top of the first topcoat, and the third topcoat is applied on top of the second topcoat.

[0063] That is to say, when the topcoat layer is applied in steps, the coating speed decreases successively.

[0064] In addition, in step s400, the surface of the topcoat layer is embossed using an embossing roller. The surface of the embossing roller has a micron-level concave-convex texture, and the texture depth can be controlled at 20-50μm, ensuring the three-dimensional effect and anti-slip properties of the glaze paint coating.

[0065] Please combine Figure 1In a third aspect, this embodiment provides a decorative floor covering comprising a substrate layer 100, a color film layer 200, a wear-resistant layer 300, and a glaze layer 400 made using any of the aforementioned glaze-like coatings. The color film layer 200 covers the surface of the substrate layer 100, the wear-resistant layer 300 covers the surface of the color film layer 200, and the glaze layer 400 covers the surface of the wear-resistant layer 300. This design imparts a glaze-like feel to the plastic substrate, enhancing the decorative effect.

[0066] The present application will be further described below with reference to examples, which are intended only to illustrate the present application but not to limit it.

[0067] Example 1

[0068] Topcoat formula:

[0069] Base resin: methyltrimethoxysilane silicone resin (50 parts);

[0070] Wear-resistant enhancer: nano-corundum powder (10 parts, particle size 10-50 nm, particle size ≤ 100 nm after ultrasonic dispersion);

[0071] Antibacterial agent: zinc oxide (2 parts) + mildew inhibitor PT430 (1 part);

[0072] Cross-linking agent: epoxidized soybean oil (4 parts);

[0073] Light stabilizer: UV absorber (1 part);

[0074] Solvent: deionized water (22 parts).

[0075] Primer formula:

[0076] Matrix resin: epoxy acrylate (50 parts) + polyurethane acrylate (5 parts);

[0077] Wear-resistant enhancer: talc (8 parts, 1250 mesh);

[0078] Antimicrobial agent: zinc oxide (1.5 parts);

[0079] Thixotropic agent: fumed silica (8 parts);

[0080] Dispersant: sodium polyacrylate (1.5 parts);

[0081] Leveling agent: polysiloxane (0.5 parts);

[0082] Solvent: water (25 parts).

[0083] Coating process:

[0084] Step S100: Substrate pretreatment: corona treatment (dyne value ≥ 45), suitable for PVC floor substrates to improve adhesion;

[0085] Step S200: Primer coating:

[0086] First coating: 8μm, coating speed 18m / min, UV-LED curing 600mJ / cm 2 (395nm).

[0087] Second coating: 7μm, coating speed 12m / min, curing 900mJ / cm 2 .

[0088] S300 topcoat coating:

[0089] First coating: 8μm, coating speed 18m / min.

[0090] Second coating: 10μm, adhesive coating speed 12m / min.

[0091] The third coating: 12 μm, coating speed 8 m / min, embossing pressure 1.2 MPa (texture depth 30 μm).

[0092] Step S400: Curing: Final curing energy 1500mJ / cm 2 , 60℃ hot air assisted curing for 2 minutes.

[0093] Example 2

[0094] Topcoat formula:

[0095] Base resin: methyltrimethoxysilane silicone resin (48 parts)

[0096] Wear-resistant enhancer: Nano-silicon carbide (12 parts, Mohs hardness 9.5)

[0097] Antimicrobial agent: titanium dioxide (2 parts)

[0098] Cross-linking agent: TMPTA cross-linking agent (3 parts)

[0099] Light stabilizer: Cerium dioxide nanoparticles (1.5 parts)

[0100] Solvent: Environmentally friendly diluent (ethylene glycol butyl ether: water = 3:22, total 25 parts)

[0101] Primer formula:

[0102] Base resin: polyurethane acrylate (55 parts)

[0103] Wear-resistant enhancer: nano-corundum powder (5 parts) + talcum powder (5 parts)

[0104] Antimicrobial agent: zinc oxide (2 parts)

[0105] Thixotropic agent: precipitated silica (10 parts)

[0106] Dispersant: sodium polyacrylate (2 parts)

[0107] Leveling agent: polysiloxane (1 part)

[0108] Solvent: deionized water (21 parts)

[0109] Coating process:

[0110] Step S100: Substrate pretreatment: corona treatment (dyne value ≥ 50) to enhance adhesion of non-polar PP substrate

[0111] Step S200: Primer coating:

[0112] First coating: 10μm, coating speed 20m / min, curing 600mJ / cm 2 .

[0113] Second coating: 10μm, coating speed 10m / min, curing 900mJ / cm 2 .

[0114] Step S300: Topcoat application:

[0115] First coating (bottom layer): 10 μm, coating speed 15 m / min.

[0116] Second coating (middle layer): 12 μm, coating speed 10 m / min.

[0117] The third coating (surface layer): 15 μm, coating speed 5 m / min, embossing pressure 1.2 MPa (texture depth 50 μm).

[0118] Step S400: Curing: Final curing energy 1500mJ / cm 2 , combined with 70℃ hot air post-curing.

[0119] Comparative Example 1:

[0120] Compared with Example 1, there is no nano-corundum powder and the layered coating process. Specifically, talcum powder (10 parts) is used instead of nano-corundum powder (10 parts), the topcoat is changed to a single layer coating (total thickness 30 μm), and the layered curing step is cancelled (only the final curing 1500 mJ / cm 2 ).

[0121] Comparative Example 2:

[0122] Compared with Example 1, no epoxy modified resin primer was used, only polyurethane acrylate (55 parts) was used, and the epoxy acrylate was removed.

[0123] Comparative Example 3:

[0124] Compared with Example 2, there is no nano-silicon carbide and embossing process, ordinary corundum powder (12 parts) is used to replace nano-silicon carbide, the embossing step is cancelled, and the surface is only leveled.

[0125] Comparative Example 4:

[0126] Compared with Example 2, a single layer of topcoat and a common light stabilizer were used, and the cerium dioxide nanoparticles were replaced with a common UV absorber (1.5 parts), and the topcoat was applied in a single layer (total thickness 40 μm).

[0127] Performance testing:

[0128] The performance of the floors of Example 1 to Example 2 and the floors of Comparative Examples 1 to Comparative Examples 4 were respectively tested as shown in Table 1, wherein scratch resistance (tested with reference to GB / T9279.1-2015 standard), impact resistance (tested with reference to GB / T17657-2013 standard), wear resistance (tested with reference to GB / T1768-2006), and stain resistance (tested with GB / T17657-2013 coffee, iodine, and watercolor).

[0129] Table 1 Floor performance

[0130]

[0131] As can be seen from Table 1, the decorative floor provided by the examples of the present application has excellent performance.

[0132] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A glaze coating, characterized in that: The invention comprises a topcoat layer and a primer layer arranged in a stacked manner, wherein: The formula ingredients of the topcoat layer include base resin, wear-resistant enhancer, antibacterial agent, cross-linking agent, light stabilizer and solvent; Calculated by weight, the formula ratio is 48-55 parts of base resin, 5-12 parts of wear-resistant enhancer, 1-3 parts of antibacterial agent, 2-5 parts of cross-linking agent, 0.5-1.5 parts of light stabilizer, and 15-25 parts of solvent. The formula ingredients of the primer layer include base resin, wear-resistant enhancer, antibacterial agent, thixotropic agent, dispersant, leveling agent and solvent; Calculated by weight, the formula ratio is 48-55 parts of base resin, 5-10 parts of wear-resistant enhancer, 1-2 parts of antibacterial agent, 5-10 parts of thixotropic agent, 1-2 parts of dispersant, 0.5-1 parts of leveling agent, and 15-25 parts of solvent.

2. The glaze coating according to claim 1, characterized in that: The base resin of the topcoat layer includes silicone resin; the wear-resistant enhancer of the topcoat layer includes nano-corundum powder or nano-silicon carbide; the antibacterial agent of the topcoat layer includes zinc oxide, titanium dioxide or mildew-proof agent PT430; the crosslinking agent of the topcoat layer includes epoxy soybean oil or TMPTA crosslinking agent; the light stabilizer of the topcoat layer includes UV absorber or cerium dioxide particles.

3. The glaze coating according to claim 1, characterized in that: The base resin of the primer layer includes at least one of epoxy acrylate and polyurethane acrylate; the wear resistance enhancer of the primer layer includes nano corundum powder or talcum powder; the antibacterial agent of the primer layer includes zinc oxide; the thixotropic agent of the primer layer includes fumed silica or precipitated silica; the dispersant of the primer layer includes sodium polyacrylate; the leveling agent of the primer layer includes polysiloxane; and the solvent of the primer layer includes water or deionized water.

4. A coating process, characterized in that, The glaze coating according to any one of claims 1 to 3, wherein the coating process comprises the following steps: Step s100: substrate pretreatment; Step s200: applying a primer layer on the upper surface of the substrate; Step s300: applying a topcoat layer on the upper surface of the primer layer.

5. The coating process according to claim 4, characterized in that: In the step s100 , the step of pre-treating the substrate includes performing corona treatment on the upper surface of the substrate to make the dyne value of the upper surface of the substrate ≥40.

6. The coating process according to claim 4, characterized in that: In step s200, the primer layer is applied in a step-by-step manner, wherein the thickness of the primer layer applied in the first step is 8-10 μm, and the thickness of the primer layer applied in the second step is 7-10 μm; and the total thickness of the primer layer after application is controlled to be 15-20 μm.

7. The coating process according to claim 4, characterized in that: In the step s300, after the primer layer is applied, the topcoat layer is applied in steps, wherein the thickness of the topcoat layer applied in the first step is 8-10 μm, the thickness of the topcoat layer applied in the second step is 10-12 μm, and the thickness of the topcoat layer applied in the third step is 12-15 μm, and the total thickness of the topcoat layer after application is controlled at 30-40 μm.

8. The coating process according to claim 7, characterized in that: In the step s300, during the process of applying the topcoat layer in steps, the coating speed is gradually reduced.

9. The coating process according to claim 4, characterized in that: After step s300, the method further includes step s400 of embossing the surface of the topcoat layer after coating.

10. A decorative floor, characterized in that: The decorative floor comprises: A substrate layer (100), a color film layer (200), a wear-resistant layer (300), and a glaze layer (400) made of the glaze coating according to any one of claims 1 to 4, wherein the color film layer (200) covers the surface of the substrate layer (100), the wear-resistant layer (300) covers the surface of the color film layer (200), and the glaze layer (400) covers the surface of the wear-resistant layer (300).

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