阅读说明：本技术 一种木质板材表面肤感涂层的制备方法 (Preparation method of wood board surface skin-feel coating ) 是由 冯鑫浩 吴智慧 吴燕 陈晶宇 于 2020-11-05 设计创作，主要内容包括：本发明提出一种木质板材表面肤感涂层的制备方法,该制备方法主要是采用UV-喷墨3D打印技术,将设计好的肤感纹理打印于木质板材表面,使木质板材表面具有优越的肤感性能。本发明制备的木质板材表面肤感涂层,其工艺简单,效率高,可以实现肤感涂层的个性化定制,能够解决传统木质板材表面肤感涂层加工工艺复杂、效率低、成本高等问题,这对木质板材涂层的拓展应用和高附加值利用具有十分重要的意义。(The invention provides a preparation method of a skin-feel coating on the surface of a wood board, which mainly adopts a UV-ink-jet 3D printing technology to print a designed skin-feel texture on the surface of the wood board, so that the surface of the wood board has excellent skin-feel performance. The wood board surface skin-feel coating prepared by the method has the advantages of simple process and high efficiency, can realize the personalized customization of the skin-feel coating, can solve the problems of complex processing process, low efficiency, high cost and the like of the traditional wood board surface skin-feel coating, and has very important significance for the expansion application and high value-added utilization of the wood board coating.)

1. A preparation method of a wooden board surface skin-feel coating is characterized by comprising the following steps:

the method comprises the following steps: acquiring skin texture information from the surfaces of different materials, and preprocessing the skin texture;

step two: guiding the skin-feeling texture obtained in the step one into a UV-ink-jet 3D printer, and adjusting the parameters of the printed skin-feeling texture;

step three: pretreating the surface of a wooden board to enable the surface to meet the requirement of UV-ink-jet 3D printing;

step four: and D, printing the UV curing resin material on the surface of the wooden board prepared in the step three layer by using the printing parameters in the step two, and preparing to obtain the skin-feel coating on the surface of the wooden board.

2. The method for preparing a skin-feel coating on the surface of a wooden board as claimed in claim 1, wherein the different material in step one is one or a mixture of cotton fiber, self-extinction polyurethane coating, low-gloss acrylic resin and raw lacquer.

3. The method for preparing a skin-feel coating on the surface of a wooden board according to claim 1, wherein the step one of collecting the skin-feel texture information is one of taking a picture by a microscope, scanning by a scanner and taking a picture by an electron microscope; the preprocessing of the skin-feeling texture comprises processing one or more of definition, color, saturation and brightness of the collected skin-feeling texture.

4. The method for preparing a skin-feel coating on the surface of a wooden board as claimed in claim 1, wherein the printing skin-feel texture parameters in the second step are one or more of printing resolution, printing speed and UV wavelength.

5. The method of claim 1, wherein said wooden panel of step three is one of a solid wood panel, a laminated wood, a laminated veneer lumber, a laminated lumber, a scriber board, a reconstituted wood, a plywood, a particle board, and a fiber board; the pretreatment is one or a mixture of sanding, putty coating and white primer spraying; the printing requirement is that the surface roughness is 0.5-5 mm.

6. The method for preparing a skin-feel coating on the surface of a wooden board as claimed in claim 1, wherein the UV curable resin material in the fourth step is one or a mixture of acrylic resin, epoxy resin, vinyl ether resin and unsaturated polyester resin.

7. The method for preparing a skin-feel coating on the surface of a wooden board as claimed in claim 4, wherein the printing resolution is 600-4800dpi, the printing speed is 0.05-1m/s, and the UV wavelength is 360-400 nm.

Technical Field

The invention relates to a preparation method of a wooden board surface skin-feel coating, in particular to a method for preparing a wooden board surface skin-feel coating by using a UV-ink-jet 3D printing technology, and belongs to the field of material veneer processing.

Background

In the eighties of the last century, people mainly select household wood products for practical use, namely, the requirements of daily functions are met; modern household wood products not only meet basic functional requirements, but also provide certain situational sense for people so as to meet the mental needs of people. Therefore, the production of skin-feeling furniture not only conforms to the development of the times, but also meets the emotional requirements of people on household wooden products. The skin-sensitive performance of the wooden products is mainly generated by coating a layer of coating with special structure and property on the surface of the wooden board, and when the coating is contacted with the skin of a human body, the skin of the human body can generate soft, full, warm, comfortable and other feelings.

At present, the preparation of the skin-feel coating on the surface of a wooden product mainly adopts a special skin-feel coating or a skin-feel film to carry out coating treatment on the wooden product, and the preparation method mainly has two problems: 1) the special skin-feel coating can only form specific wrinkle textures, has single skin-feel performance, and has more curing factors and poorer repeatability of the skin-feel coating; 2) the processing of the skin-feel coating needs to perform fire prevention, wear resistance and other treatment on the wood board in advance, and the process is complex and the production efficiency is low.

Disclosure of Invention

The invention aims to provide a preparation method of a wooden board surface skin-feel coating, which aims to solve the problems of single skin-feel performance, poor repeatability, complex process, low production efficiency and the like of the wooden board surface skin-feel coating provided in the background art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a preparation method of a wooden board surface skin-feel coating is characterized by comprising the following steps:

the method comprises the following steps: acquiring skin texture information from the surfaces of different materials, and preprocessing the skin texture;

step two: guiding the skin-feeling texture obtained in the step one into a UV-ink-jet 3D printer, and adjusting the parameters of the printed skin-feeling texture;

step three: pretreating the surface of a wooden board to enable the surface to meet the requirement of UV-ink-jet 3D printing;

step four: and D, printing the UV curing resin material on the surface of the wooden board prepared in the step three layer by using the printing parameters in the step two, and preparing to obtain the skin-feel coating on the surface of the wooden board.

Preferably, the different materials in step one are one or a mixture of several of cotton fiber, self-extinction polyurethane coating, low-gloss acrylic resin and raw lacquer.

Preferably, the method for acquiring skin texture information in the first step is one of microscope photographing, scanner scanning and electron microscope photographing; the preprocessing of the skin-feeling texture comprises processing one or more of definition, color, saturation and brightness of the collected skin-feeling texture.

Preferably, the printing skin texture parameters in the second step are one or more of printing resolution, printing speed and UV wavelength.

Preferably, the wooden board in the third step is one of a solid wood board, an integrated wood, a laminated veneer lumber, a laminated blockboard, a reconstituted wood, a plywood, a shaving board and a fiberboard; the pretreatment is one or a mixture of sanding, putty coating and white primer spraying; the printing requirement is that the surface roughness is 0.5-5 mm.

Preferably, the UV curable resin material in step four is one or a mixture of several of acrylic resin, epoxy resin, vinyl ether resin and unsaturated polyester resin.

Preferably, the printing resolution is 600-4800dpi, the printing speed is 0.05-1m/s, and the UV wavelength is 360-400 nm.

The invention has the following beneficial effects:

(1) the wooden board surface skin-feel coating prepared by the invention can be formed in one step by UV-ink-jet 3D printing, the process is simple, the production efficiency is high, and the production cost of the wooden board surface skin-feel coating can be effectively reduced.

(2) According to the invention, the UV-inkjet 3D printing technology is adopted to prepare the wooden board surface skin-feel coating, and the wooden board surface skin-feel performance can be effectively controlled through the design of printing textures, so that the wooden board surface skin-feel coating is diversified and personalized, and the requirements of different consumers on the wooden board surface skin-feel performance are met.

(3) The surface skin-feel coating for the wood board prepared by the invention is low in preparation cost, and the coating material is green and environment-friendly, so that the decoration and environment-friendliness of the wood board can be effectively improved, and the high-added-value application of the wood board is promoted.

Detailed Description

To better illustrate the technical features and advantages of the present invention, the following detailed description is given in conjunction with specific embodiments so that the present invention can be more easily understood by those skilled in the art, and the scope of the present invention is more clearly defined.

Example 1

The preparation method of the skin-feel coating on the surface of the wood board comprises the following steps:

the method comprises the following steps: shooting and collecting a texture structure on the surface of the cotton fiber by using a microscope, and adjusting the definition and brightness of the texture structure;

step two: introducing the surface texture of the cotton fiber obtained in the step one into a UV-ink-jet 3D printer, setting the resolution of the printed skin-feel texture to be 1200dpi, the printing speed to be 0.3m/s and the UV wavelength to be 380 nm;

step three: sanding the surface of the solid wood board to ensure that the surface roughness of the solid wood board is 1.0 mm;

step four: and D, printing the acrylic resin on the surface of the solid wood board prepared in the step three layer by using the printing parameters in the step two, and preparing to obtain the skin-feel coating on the surface of the solid wood board.

Example 2

The preparation method of the skin-feel coating on the surface of the wood board comprises the following steps:

the method comprises the following steps: shooting and collecting the texture structure on the surface of the self-extinction polyurethane coating by using a scanning electron microscope, and adjusting the definition and brightness of the texture structure;

step two: guiding the surface texture of the self-extinction polyurethane coating in the step one into a UV-ink-jet 3D printer, setting the resolution of the printed skin-feel texture to be 2400dpi, the printing speed to be 0.5m/s and the UV wavelength to be 360 nm;

step three: sanding the surface of the blockboard to ensure that the surface roughness of the blockboard is 0.3 mm;

step four: and (4) printing the acrylic resin on the surface of the core board prepared in the step three layer by using the printing parameters in the step two, and preparing to obtain the skin-feel coating on the surface of the core board.

Example 3

The preparation method of the skin-feel coating on the surface of the wood board comprises the following steps:

the method comprises the following steps: shooting and collecting the texture structure on the surface of the cotton fiber by using a scanning electron microscope, and adjusting the definition and brightness of the texture structure;

step two: introducing the surface texture of the cotton fiber obtained in the step one into a UV-ink-jet 3D printer, setting the resolution of the printed skin-feel texture to be 600dpi, the printing speed to be 0.05m/s and the UV wavelength to be 400 nm;

step three: sanding the surface of the plywood to ensure that the surface roughness of the plywood is 3.0 mm;

step four: and D, printing the epoxy resin on the surface of the plywood prepared in the step three layer by using the printing parameters in the step two to prepare the skin-feeling coating on the surface of the plywood.

Example 4

The preparation method of the skin-feel coating on the surface of the wood board comprises the following steps:

the method comprises the following steps: scanning and collecting the texture structure on the surface of the low-glossiness acrylic resin by using a scanner, and adjusting the definition and brightness of the texture structure;

step two: introducing the low-glossiness acrylic resin surface texture obtained in the step one into a UV-ink-jet 3D printer, setting the resolution of the printed skin-feel texture to be 4000dpi, the printing speed to be 1m/s, and the UV wavelength to be 380 nm;

step three: sanding the surface of the laminated veneer lumber to ensure that the surface roughness of the laminated veneer lumber is 5 mm;

step four: and D, printing the vinyl ether resin on the surface of the laminated veneer lumber prepared in the step three layer by using the printing parameters in the step two, and preparing to obtain the skin-feel coating on the surface of the laminated veneer lumber.

Example 5

The preparation method of the skin-feel coating on the surface of the wood board comprises the following steps:

the method comprises the following steps: shooting and collecting a texture structure on the surface of the cotton fiber by using a microscope, and adjusting the definition and brightness of the texture structure;

step two: introducing the surface texture of the cotton fiber obtained in the step one into a UV-ink-jet 3D printer, setting the resolution of the printed skin-feel texture to be 3000dpi, the printing speed to be 0.3m/s and the UV wavelength to be 360 nm;

step three: sanding the surface of the shaving board to ensure that the surface roughness of the shaving board is 2.0 mm;

step four: and D, printing unsaturated polyester resin on the surface of the shaving board prepared in the step three layer by using the printing parameters in the step two, and preparing the skin-feel coating on the surface of the shaving board.

Example 6

The preparation method of the skin-feel coating on the surface of the wood board comprises the following steps:

the method comprises the following steps: shooting and collecting a texture structure on the surface of the cotton fiber by using a microscope, and adjusting the definition and brightness of the texture structure;

step two: introducing the surface texture of the cotton fiber obtained in the step one into a UV-ink-jet 3D printer, setting the resolution of the printed skin-feel texture to be 4000dpi, the printing speed to be 1m/s and the UV wavelength to be 400 nm;

step three: sanding the surface of the solid wood board to ensure that the surface roughness of the solid wood board is 1.0 mm;

step four: and D, printing the acrylic resin on the surface of the solid wood board prepared in the step three layer by using the printing parameters in the step two, and preparing to obtain the skin-feel coating on the surface of the solid wood board.

Example 7

The preparation method of the skin-feel coating on the surface of the wood board comprises the following steps:

the method comprises the following steps: shooting and collecting a texture structure on the surface of the cotton fiber by using a microscope, and adjusting the definition and brightness of the texture structure;

step two: introducing the surface texture of the cotton fiber obtained in the step one into a UV-ink-jet 3D printer, setting the resolution of the printed skin-feel texture to be 1200dpi, the printing speed to be 0.3m/s and the UV wavelength to be 380 nm;

step three: sanding the surface of the fiber board to ensure that the surface roughness of the fiber board is 0.8 mm;

step four: and D, printing the epoxy resin on the surface of the prepared fiberboard in the step three layer by using the printing parameters in the step two, and preparing the skin-feel coating on the surface of the fiberboard.

Example 8

The wood-based panels described in examples 1-7 were tested for hardness and adhesion of the skin-feel coating, and the results are shown in Table 1.

Table 1 hardness and adhesion of skin-feel coatings on wood-based panels as described in examples 1-7

As can be seen from table 1, the hardness and the adhesion of the skin-feel coating on the surface of the wood board described in examples 1 to 7 both meet the basic requirements of the national furniture paint film adhesion standard (not more than 2 grade) and the national furniture paint film hardness standard (not less than 2H), which indicates that the preparation method of the skin-feel coating on the surface of the wood board described in the present invention is not only feasible, but also the skin-feel coating on the surface of the wood board prepared by the method can meet the application requirements.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.