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CN-121992684-A - Production process of new material for paper decoration

CN121992684ACN 121992684 ACN121992684 ACN 121992684ACN-121992684-A

Abstract

The invention discloses a production process of a new material for paper decoration, which relates to the technical field of decoration material production, and by abandoning dependence on natural mineral products, the invention adopts renewable plant fiber paper as a core substrate, eliminates the radioactivity risk of a raw material source, ensures the environmental safety of the material for long-term use indoors, and aims at the problems of insufficient paper strength and poor weather resistance, the invention designs a composite modifier containing aqueous polyurethane resin and nano silicon dioxide, the modifier fully permeates into the paper fiber network and gaps through an ultrasonic auxiliary impregnation process, and the resin is crosslinked and cooperates with nano particles in the subsequent drying and hot pressing processes, so that a compact organic-inorganic hybrid protective layer is formed on the fiber surface and between the fiber surfaces, the protective layer not only remarkably enhances the mechanical strength, the wear resistance and the moisture resistance of the paper, and enables the paper to meet the use requirements of decoration surface materials, but also realizes the unification of safety and economy.

Inventors

  • XIA ZHENWEI
  • Xia Zhenliang

Assignees

  • 吉林省索奈新材料科技有限公司

Dates

Publication Date
20260508
Application Date
20260224

Claims (9)

  1. 1. The production process of the new material for paper decoration is characterized by comprising the following specific steps: S100, selecting plant fiber paper, cutting the plant fiber paper into paper blanks with preset sizes, placing the paper blanks in a constant temperature and humidity environment for pretreatment, removing redundant water and fixing fiber stability; S200, modifying, namely soaking the pretreated paper blank in a modifier solution, adopting ultrasonic vibration to assist in permeation, and then drying to obtain a modified paper blank; s300, multi-layer composite forming, namely stacking a plurality of layers of modified paper blanks in a forming die, and carrying out composite forming under the condition of heating and pressurizing to obtain an ultrathin substrate; S400, light transmission and toughness strengthening treatment, namely ultraviolet curing is carried out on the ultrathin substrate, and then low-temperature tempering treatment is carried out to improve light transmission and strengthen toughness; s500, surface finishing and cutting, namely performing surface coating and texture printing on the reinforced base material, and finally cutting the base material into finished product sizes.
  2. 2. The process for producing a new material for paper decoration according to claim 1, wherein in S100, the plant fiber paper is bamboo pulp paper or wood pulp paper, the temperature of the constant temperature and humidity environment is 25-30 ℃, the humidity is 40-50%, and the pretreatment time is 2-3 hours.
  3. 3. The process for producing a new material for paper decoration according to claim 1, wherein in S200, the modifier solution is formed by mixing aqueous polyurethane resin, silica nanoparticles and silane coupling agent KH-550 in a mass ratio of 80:15:5, and deionized water is added to dilute the mixture to a concentration of 10-15%.
  4. 4. The process for producing a new material for paper decoration according to claim 1, wherein the frequency of the ultrasonic vibration is 20-30kHz, the soaking time is 30-40 minutes, the drying temperature is 60-70 ℃, and the drying time is 1-1.5 hours.
  5. 5. The process for producing a new material for paper decoration according to claim 1, wherein in S300, a forming mold used for multi-layer composite forming is of an upper mold structure and a lower mold structure, a heating channel is provided in the lower mold of the forming mold for heating a mold cavity, a pressure adjusting device is provided in the upper mold of the forming mold for controlling a mold closing pressure, an anti-slip texture is provided on a surface of the mold cavity of the forming mold for preventing the modified paper blank from sliding and transferring the texture to the surface of the ultra-thin substrate during the hot pressing process.
  6. 6. The process for producing a new material for paper decoration according to claim 5, wherein the technological parameters of the multilayer composite molding are that the temperature of a mold is 80-90 ℃, the pressure is applied after preheating for 5 minutes, the pressure range is 0.3-0.5MPa, and the constant temperature and the constant pressure are maintained for 20-30 minutes; the thickness of the ultrathin substrate is controlled to be 0.6mm plus or minus 0.05mm.
  7. 7. The process for producing a new material for paper decoration according to claim 1, wherein in S400, an ultraviolet light source with a wavelength of 365nm is used for ultraviolet curing, and the irradiation time is 15-20 minutes; The low temperature tempering treatment is to put the base material into a constant temperature furnace with the temperature of 40-50 ℃ for 2 hours, and then cool the base material to room temperature.
  8. 8. The process for producing a new material for paper decoration according to claim 1, wherein in S500, the surface finishing comprises coating a transparent wear-resistant coating or printing a decorative texture; the transparent wear-resistant coating is a polycarbonate coating.
  9. 9. The process for producing a new material for paper decoration according to claim 1, wherein the new material for paper decoration is applied to a furniture board veneer, a wall decoration, a floor decoration or an external packing box.

Description

Production process of new material for paper decoration Technical Field The invention relates to the technical field of decorative material production, in particular to a production process of a new material for paper decoration. Background Currently, in the fields of furniture, building interior and high-end packaging, there is an increasing demand for ultra-thin decorative materials having both beauty and functionality, the prior art is dominated by ultra-thin natural stone for a long time, which is made into a thin plate through a physical cutting process for surface decoration. The material is widely applied to scenes such as background walls, cabinet door panels, gift box packages and the like by virtue of unique natural textures and textures. However, the prior art represented by ultra-thin stone has inherent drawbacks: In terms of raw materials and cost, the method depends on mineral resources, and the mining, transportation and complicated slicing and polishing processes consume a large amount of energy and manpower, so that the raw materials and the manufacturing cost are high. In terms of safety and environmental protection, partial natural stone veins are accompanied with trace radioactive elements, radon gas released by the natural stone veins possibly forms a hidden danger of long-term indoor environment health, and the application of the natural stone veins in sensitive scenes such as bedrooms and children rooms is limited. In the aspect of physical and construction performances, the inherent brittleness of the stone is amplified after the thickness is reduced to the millimeter level, so that irreversible cracking or edge breakage of the product is extremely easy to occur due to uneven stress in the processes of transportation, cutting and installation. In summary, the existing ultrathin stone decorative material has obvious short plates in the aspects of cost control, environmental safety, physical property adaptability and the like. Therefore, a new ultrathin decorative material which can fundamentally get rid of dependence on mineral raw materials and has intrinsic safety properties and excellent flexibility and modeling adaptability and a high-efficiency and low-cost preparation process thereof are needed in the field. Disclosure of Invention The invention aims to make up the defects of the prior art and provides a production process of a new material for paper decoration, which can eliminate the radioactivity risk of a raw material source by abandoning the dependence on natural mineral products and adopting renewable plant fiber paper as a core substrate, ensure the environmental safety of the material for long-term use indoors, and solve the problems of insufficient paper strength and poor weather resistance by designing a composite modifier containing aqueous polyurethane resin and nano silicon dioxide, fully permeates into the inside and gaps of a paper fiber network, and in the subsequent drying and hot pressing processes, resin is crosslinked and synergistically acts with nano particles to form a layer of compact organic-inorganic hybrid protective layer on the surface of the fiber and between the fiber surfaces, and the protective layer not only remarkably enhances the mechanical strength, the wear resistance and the moisture resistance of the paper to enable the paper to meet the use requirements of decorative plane materials, but also enables the paper-based material with low cost and easy acquisition to replace expensive stone, reconstructs the cost structure of the product from the source and realizes the unification of safety and economy. The invention provides a production process of a new material for paper decoration, which aims to solve the technical problems and comprises the following specific steps: S100, selecting plant fiber paper, cutting the plant fiber paper into paper blanks with preset sizes, placing the paper blanks in a constant temperature and humidity environment for pretreatment, removing redundant water and fixing fiber stability; S200, modifying, namely soaking the pretreated paper blank in a modifier solution, adopting ultrasonic vibration to assist in permeation, and then drying to obtain a modified paper blank; s300, multi-layer composite forming, namely stacking a plurality of layers of modified paper blanks in a forming die, and carrying out composite forming under the condition of heating and pressurizing to obtain an ultrathin substrate; S400, light transmission and toughness strengthening treatment, namely ultraviolet curing is carried out on the ultrathin substrate, and then low-temperature tempering treatment is carried out to improve light transmission and strengthen toughness; s500, surface finishing and cutting, namely performing surface coating and texture printing on the reinforced base material, and finally cutting the base material into finished product sizes. Further, in the step S100, the plant fiber paper is bamboo pulp paper or wood pul