Crack-resistant wear-resistant paint and process for manufacturing floor using paint

Abstract

The present invention relates to the technical field of boards. Disclosed are a crack-resistant wear-resistant paint and a process for manufacturing a floor using the paint. The paint comprises the following materials in percentage by mass: 25-35% of polyurethane, 5-10% of polyester, 20-30% of a functional monomer, 20-30% of aluminum oxide, 5-10% of wear-resistant powder, 1-3% of an adhesion promoter, 3-7% of an initiator, and 1-3% of an auxiliary agent. On the basis that curtain-coating a surface of a plastic floor with the crack-resistant wear-resistant paint ensures that the plastic floor can meet wear-resistant requirements, no paint cracking occurs during hot pressing, so that realistic rock embossing can be obtained on the floor by means of digital printing and steel plate hot pressing. By means of the crack-resistant wear-resistant paint having better crack-resistance, a floor manufactured thereby can be more realistic, the purpose can be achieved simply by replacing the paint, and improvement costs are also relatively low.

Description

A crack-resistant and wear-resistant paint and a process for making flooring using the paint. Technical Field

[0001] This invention relates to the field of board technology, specifically to a crack-resistant and wear-resistant paint and a process for making flooring using the paint. Background Technology

[0002] Antique-style tiles are a type of building material with a retro style that has gained popularity in interior design and architectural decoration in recent years. With their unique texture, color, and patterns, antique-style tiles can create a nostalgic and warm atmosphere, suitable for spaces of various styles, from rustic and pastoral to modern industrial. Currently, advancements in production technology, such as high-definition inkjet printing and glazing, allow antique-style tiles to realistically reproduce the textures of materials like stone, wood, and fabric, while maintaining the durability and ease of cleaning of ceramic tiles. While 3D printed patterns are currently achieved using digital inkjet printing for PVC flooring, they are weaker in embossing, lacking the realism of rock textures and the required embossing depth to match that of authentic ceramic tiles and antique-style tiles. Summary of the Invention

[0003] Purpose of the invention: The technical problem to be solved by the present invention is to provide a crack-resistant and wear-resistant paint and a process for making flooring using the paint, which solves the problem that existing antique brick baseboards have cracks on the floor surface because their wear-resistant paint does not have crack resistance. Technical solution

[0004] To solve the above problems, the technical solution provided by the present invention is as follows:

[0005] A crack-resistant and wear-resistant paint, wherein the paint materials, by weight percentage, include polyurethane: 25-35%; polyester: 5-10%; functional monomers: 20-30%; aluminum oxide: 20-30%; wear-resistant powder: 5-10%; adhesion promoter: 1-3%; initiator: 3-7%; and auxiliary agents: 1-3%.

[0006] Furthermore, the material mixing sequence is as follows: first, the polyurethane, the polyester, and the functional monomer are uniformly mixed; after mixing, the auxiliary agent is added; after uniform mixing again, the aluminum oxide and the wear-resistant powder are added; then the adhesion promoter is added; and finally, the initiator is added.

[0007] The paper also discloses a manufacturing process for flooring made with crack-resistant and wear-resistant paint, which includes making a base plate substrate, digitally printing patterns, applying a coating to the base plate surface, pressing and embossing, and sawing and grooving the plate.

[0008] Furthermore, the digital printing pattern includes first sanding the base plate substrate with sandpaper, applying white paint to the sanded substrate surface, and then printing the pattern on the white paint surface.

[0009] Furthermore, in the pressing and embossing process, hot pressing and cold pressing are performed sequentially.

[0010] Furthermore, the hot pressing is a three-stage pressure process, with pressures of 7MPa, 8MPa, and 9MPa in sequence; the overall hot pressing time is 15-20 minutes.

[0011] Furthermore, the three-stage pressure of the hot pressing is a continuous pressurization.

[0012] Furthermore, the hot pressing temperature is 100-120 degrees Celsius.

[0013] Furthermore, the cold pressing is a three-stage pressure process, with pressures of 9MPa, 11MPa, and 13MPa respectively; the overall cold pressing time is 15-20 minutes.

[0014] Furthermore, the three-stage pressure of the cold pressing is a continuous pressurization process. Beneficial effects

[0015] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0016] The technical solution provided by this invention ensures that the plastic flooring meets the wear resistance requirements by applying a crack-resistant and wear-resistant paint to the floor surface, and the paint will not crack during hot pressing. This allows for the creation of realistic rock patterns on the floor through digital printing and hot pressing with steel plates. By using a crack-resistant and wear-resistant paint with better crack resistance, the flooring produced can be made more realistic, and the goal can be achieved simply by replacing the paint, resulting in lower improvement costs. Attached Figure Description

[0017] Figure 1 is a flowchart of Embodiment 2 of the present invention. Detailed Implementation

[0018] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0019] A crack-resistant and wear-resistant paint is mainly used to create patterns similar to real rocks on the floor. By applying a layer of crack-resistant and wear-resistant paint to the substrate, the paint on the pre-printed rock pattern on the substrate will not crack during hot pressing.

[0020] The structure of the base plate with the rock pattern consists of, from bottom to top, the base plate substrate, crack-resistant and wear-resistant paint, and topcoat.

[0021] The floor substrate has a rock pattern printed on its surface, and the rock pattern is protected by a crack-resistant and wear-resistant paint coating.

[0022] Crack-resistant and wear-resistant paint has better crack resistance than conventional wear-resistant paint and will not crack during hot pressing.

[0023] The composition of the crack-resistant and wear-resistant paint, by weight percentage, is as follows: polyurethane: 25-35%; polyester: 5-10%; functional monomers: 20-30%; alumina: 20-30%; wear-resistant powder: 5-10%; adhesion promoter: 1-3%; initiator: 3-7%; auxiliary agents: 1-3%. Polyurethane refers to a high molecular weight compound produced by the polymerization reaction of isocyanates and polyols; polyester refers to a polymer obtained by the condensation polymerization of polyols and polyacids; functional monomers refer to alkyl acrylates; wear-resistant powder refers to at least one of polytetrafluoroethylene wax, PMMA microspheres, and organosilicon microspheres; adhesion promoter refers to silanes with epoxy methoxy functional groups; initiator refers to 2,2-dimethyl-2-hydroxyacetophenone, 1-hydroxycyclohexyl benzophenone, and 2,4,6-trimethylacetophenone. The additive is at least one of the following: methylbenzoyl-diphenylphosphine oxide, ethyl 2,4,6-trimethylbenzoylphosphonate, phenyl bis(2,4,6-trimethylbenzoyl)phosphine oxide, 2-methyl-2-(4-morpholino)-1-[4-(methylthio)phenyl]-1-propanone, and isopropylthioxanthone; the auxiliary agent is at least one of the following: organosilicon polydimethylsiloxane, polyester-modified organosilicon, polyether-modified siloxane, alkyl-modified organosilicon, and fluorinated acrylate.

[0024] When making crack-resistant and wear-resistant paint, the above materials need to be mixed, but the mixing must be done in a certain order to ensure the crack-resistant and wear-resistant properties of the paint.

[0025] During mixing, polyurethane, polyester, and functional monomers are first mixed evenly. After mixing, auxiliary agents are added, followed by alumina and wear-resistant powder. Then, adhesion promoters are added, and finally, initiators are added.

[0026] By mixing in the above order, the materials can be mixed more thoroughly. Example

[0027] Referring to Figure 1, a manufacturing process for flooring using crack-resistant and wear-resistant paint is described below:

[0028] This includes: making the base plate substrate, digitally printing patterns, coating the base plate surface, pressing and embossing, and sawing and grooving the plate.

[0029] Making the base plate substrate:

[0030] Crack-resistant and wear-resistant paint can be used with any substrate to create a floor with a rock pattern. Therefore, the pattern of the substrate can be selected from a variety of substrate materials to adapt to various flooring usage environments. The preferred substrate materials are SPC (Stone Polymer Composite), PET (Polyethylene Terephthalate), TPU (Thermoplastic Polyurethane), and PP (Polypropylene).

[0031] The base plate substrate material also needs to be combined with some auxiliary materials during the production of the base plate substrate to enhance the performance of the base plate.

[0032] Detailed fabrication of the base plate:

[0033] Prepare the material for making the base plate substrate, mix the base plate substrate material in a mixer, and put the mixed material into an extruder, preferably a 92 extruder.

[0034] The extruder is turned on, and the base plate substrate of the corresponding thickness is extruded according to the design size and thickness of the base plate substrate.

[0035] The extruded substrate is cooled to form a substrate used for making flooring.

[0036] Digitally printed patterns:

[0037] After the base plate substrate is made, the surface of the substrate is sanded to polish it, so that the white paint can fully bond with the substrate.

[0038] After the substrate is sanded, a layer of white paint is applied to the sanded surface of the substrate. The white paint is used to make the rock pattern printed on the substrate by the digital printer clearer.

[0039] After the white paint coating solidifies, the substrate is transported to a digital printer to print the rock pattern.

[0040] The rock pattern is printed digitally onto the substrate surface, ensuring accurate and rapid printing.

[0041] Base plate surface coating:

[0042] After printing the pattern on the base plate substrate, apply crack-resistant and wear-resistant paint and topcoat to the rock pattern in sequence.

[0043] Crack-resistant and wear-resistant paint has the advantages of wear-resistant paint. It forms a wear-resistant layer on the substrate. At the same time, since the substrate needs to be hot-pressed in the subsequent process, the crack-resistant and wear-resistant paint will not crack during hot pressing, thus affecting the effect of the rock pattern.

[0044] After the crack-resistant and wear-resistant paint coating is completed and solidified, a topcoat is applied on top of the crack-resistant and wear-resistant paint. The topcoat is preferably a digital topcoat, which has a higher compatibility with the printed pattern and has less impact on the pattern. The topcoat can ensure the physical properties of the floor surface and ensure the gloss of the finished floor surface.

[0045] For crack-resistant and wear-resistant coatings and topcoats, UV lamp irradiation is the preferred method for curing.

[0046] Embossing:

[0047] After the crack-resistant and wear-resistant paint and topcoat are applied, the base plate substrate is pressed. The pressing process makes the rock pattern on the base plate realistic. The pressing process includes two consecutive pressing processes: hot pressing and cold pressing.

[0048] When pressing the base plate substrate, a hot press is selected for hot pressing. The steel plate on the hot press that comes into direct contact with the floor substrate needs to correspond to the rock pattern, so that the embossing is pressed into the base plate substrate in the form of hot pressing. Embossing can make the floor with rock pattern more realistic.

[0049] The specific hot pressing process of the base plate substrate is as follows: First, hot pressing is performed, and then cold pressing is performed. Hot pressing is used to press out the embossing to realistically display the rock embossing. Cold pressing is used to fix the embossing and prevent the rock pattern from changing color.

[0050] The hot-pressing temperature is maintained at 100-120 degrees Celsius, and the hot-pressing time is 15-20 minutes. The hot-pressing is a gradual increase in pressure, from low to high. The hot-pressing pressure is divided into three stages: 7MPa, 8MPa, and 9MPa. The three stages of pressure are continuously increased, and the overall duration of the three gradually increasing pressure stages is 15-20 minutes. The hot-pressing time is adjusted according to the hot-pressing temperature, and can also be adjusted accordingly to improve the hot-pressing effect.

[0051] By applying pressure in three stages, the embossed patterns can be made more coherent and more realistic.

[0052] After hot pressing, cold pressing is performed. The embossed pattern can be stably preserved after cold pressing and is not easily deformed.

[0053] The cold pressing temperature can be room temperature, and the cold pressing pressure is also a three-stage pressure that is gradually increased. The cold pressing pressure is 9MPa, 11MPa and 13MPa from low to high. The cold pressing pressure is also continuously increased during the pressurization process, and the overall cold pressing time is 15-20 minutes.

[0054] After being pressed and embossed, the substrate not only achieves the required embossing depth, but also ensures that the rock pattern will not change color and affect the finished flooring.

[0055] Grooving the board:

[0056] After cold pressing, the finished base plate needs to be sliced ​​and grooved. Slicing and grooving the plate according to design requirements will yield a qualified finished product.

[0057] Compared to conventional digital wear-resistant paint, crack-resistant wear-resistant paint can better prevent cracks from appearing on the surface of the substrate during hot pressing.

[0058] Test comparison:

[0059] Comparison method: Select the same base plate substrate, sand it, digitally print a rock pattern, and apply digital wear-resistant paint and crack-resistant wear-resistant paint to the rock pattern respectively. Press and emboss the two base plates with different paints using the same process brick. Then, apply the same topcoat to the base plates after pressure and compare the surfaces.

[0060] The curing parameters for digital wear-resistant paint and crack-resistant wear-resistant paint are as follows:

[0061] (1) Surface coating: digital wear-resistant paint, weight 110g / ㎡, curing energy 150mj / cm², digital topcoat, weight 8g / ㎡, curing energy 1000mj / cm².

[0062] (2) Surface coating: crack-resistant and wear-resistant paint, weight 110g / ㎡, curing energy 800mj / cm², digital topcoat, weight 8g / ㎡, curing energy 1000mj / cm².

[0063] After hot pressing with the same hot pressing process, the samples (1) and (2) can be observed with the naked eye. Although both samples can obtain real rock texture, cracks appear on the surface of the floor sample (1), with 50-100 cracks per square meter, each crack being 20-30 mm long and 0.05 mm wide; the surface of the floor sample (2) has no cracks.

[0064] Products made with crack-resistant and wear-resistant paint:

[0065] 1. Meets the requirements of EN16511, class 33, with a shrinkage rate ≤0.25%.

[0066] 2. The error in matching patterns should be controlled within ≤1.5mm.

[0067] 3. The edge drop and embossing depth reach 0.15mm.

[0068] Unless otherwise specified, all proportions in this invention are mass proportions, and all percentages in this invention are mass percentages.

[0069] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A crack-resistant and wear-resistant paint, characterized in that, The paint's materials, by weight percentage, include: polyurethane: 25-35%; polyester: 5-10%; functional monomers: 20-30%; aluminum oxide: 20-30%; abrasion-resistant powder: 5-10%; adhesion promoter: 1-3%. Initiator: 3-7%; Auxiliary agent: 1-3%.

2. The crack-resistant and wear-resistant paint according to claim 1, characterized in that, The material mixing sequence is as follows: first, the polyurethane, the polyester, and the functional monomer are mixed evenly; after mixing, the auxiliary agent is added; after mixing evenly again, the aluminum oxide and the wear-resistant powder are added; then the adhesion promoter is added; and finally, the initiator is added.

3. A manufacturing process for flooring using crack-resistant and wear-resistant paint, characterized in that, The process involves: fabricating the base plate substrate, digitally printing the pattern, applying a coating to the base plate surface, pressing and embossing, and sawing and grooving the plate.

4. The manufacturing process for flooring using crack-resistant and wear-resistant paint according to claim 3, characterized in that, The digital printing pattern involves sanding the surface of the base plate substrate with sandpaper, applying a white paint coating, and then printing the pattern.

5. The manufacturing process for flooring using crack-resistant and wear-resistant paint according to claim 3, characterized in that, The coating process on the base plate involves sequentially applying crack-resistant and wear-resistant paint and topcoat to one side of the base plate substrate on which the pattern has been printed.

6. The manufacturing process for flooring using crack-resistant and wear-resistant paint according to claim 3, characterized in that, In the pressing and embossing process, hot pressing and cold pressing are performed sequentially.

7. The manufacturing process for flooring using crack-resistant and wear-resistant paint according to claim 6, characterized in that, The hot pressing is a three-stage pressure process, with pressures of 7MPa, 8MPa, and 9MPa in sequence; the overall hot pressing time is 15-20 minutes.

8. The manufacturing process for flooring using crack-resistant and wear-resistant paint according to claim 7, characterized in that, The three-stage pressure of the hot pressing is a continuous pressurization.

9. A manufacturing process for flooring using crack-resistant and wear-resistant paint according to claim 7, characterized in that, The hot pressing temperature is 100-120 degrees Celsius.

10. A manufacturing process for flooring using crack-resistant and wear-resistant paint according to claim 6, characterized in that, The cold pressing is a three-stage pressure process, with pressures of 9MPa, 11MPa, and 13MPa respectively; the overall cold pressing time is 15-20 minutes, and the three-stage pressure is continuous.

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