A production process of a new digital decorative paper and veneer

Abstract

The application relates to the technical field of decorative material production, and discloses a production process of novel digital decorative paper, which comprises the following steps: a. selecting wear-resistant paper and base paper; b. printing a digital pattern on the surface of the digital base paper through a digital printing device; and c. performing life cultivation on the paper formed after printing; a production process of a veneer, which comprises the following steps: S1. selecting raw materials; S2. slicing; S3. drying; S4. gluing; S5. paving; S6. pressing and pasting; S7. life cultivation; S8. sanding; S9. cutting; and S10. warehousing. The production process of the novel digital decorative paper and the veneer guarantees better veneering effect of the digital decorative board, guarantees better dry pressing effect of the digital decorative paper, can accelerate the penetration of printing ink into the base paper, controls the water content of the digital paper, improves the pressing and pasting effect and pressing and pasting loss in the later period, adds a life cultivation process of the digital decorative paper, the printing ink is fully combined with the base paper after the digital decorative paper is life cultivated for four days, and the phenomena of surface bubbles and delamination after veneering are solved.

Description

Technical Field

[0001] This invention relates to the field of decorative material production technology, specifically to a new production process for digital decorative paper and decorative panels. Background Technology

[0002] Digital decorative paper is a new type of decorative material designed to personalize decorative paper while meeting the requirements of rapid, small-batch production. Compared to traditional decorative base paper, digital printing decorative paper offers vibrant and rich colors, excellent opacity, high lightfastness, and good breathability.

[0003] Digitally printed decorative paper is made by first coating the surface of the base paper, then digitally printing patterns or designs on it according to requirements, and finally adding an impregnated surface paper to both sides of the printed paper. It is then processed using cold or hot pressing methods based on the company's experience.

[0004] Digital decorative paper panels are decorative paper panels produced using digital printing technology. These panels use decorative base paper as the substrate, and various patterns and designs are printed onto the surface using digital printing technology. They are then processed through adhesive coating, cold pressing, and other steps. Compared to traditional decorative base paper, digital decorative paper panels offer higher color vibrancy, better opacity, and superior lightfastness, while also providing better breathability.

[0005] Currently, common digital decorative paper and decorative panels printed using ordinary digital equipment have relatively high requirements for environmental humidity. In environments with relatively high humidity, they are prone to absorbing moisture, which affects print quality. In addition, the lead time for normal digital paper orders is relatively short. After printing, lamination production is arranged directly. If the amount of ink on the paper is large, the ink cannot fully penetrate the backing paper, which can easily generate air bubbles during the lamination process, causing the ink to separate from the backing paper. This cannot meet the working requirements of digital decorative paper and decorative panels. Therefore, a new production process for digital decorative paper and decorative panels is proposed. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a novel production process for digital decorative paper and decorative panels, thereby solving the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a novel production process for digital decorative paper, comprising the following steps:

[0008] a. Select digital base paper. To ensure the dry pressing effect of digital decorative paper, wear-resistant paper is selected as the digital base paper, and the wear-resistant paper process is improved. The normal 36-gram wear-resistant paper has an adhesive amount of 130 grams and an evaporation of about 8.0. The optimal adhesive amount for the wear-resistant paper used in digital decorative paper is 115 grams, with an evaporation of 6.5-7.0.

[0009] b. Digital patterns are printed on the surface of wear-resistant paper using digital printing equipment. Decorative paper printed by ordinary digital equipment is prone to absorbing moisture in environments with relatively high humidity, and has high requirements for environmental humidity. Improvements to digital equipment include improving the printing curve process, controlling the amount of ink applied during printing, improving the printing step size, changing the original paper feeding and feathering, reducing horizontal lines that appear during printing, and adding a drying section after the printing section and before the rewinding section. This can accelerate the penetration of printing ink into the base paper and control the moisture content of the digital paper, thereby improving the subsequent lamination effect and lamination loss.

[0010] c. The printed paper is cured for four days. The curing process uses the traditional curing method of multi-layer composite wood, which involves placing the material in a well-ventilated indoor environment for a period of time to stabilize the moisture content of the material. Finally, the resulting digital decorative paper is stored. Normal digital paper orders have relatively short lead times. After printing, lamination production is arranged directly. Paper with a small amount of ink has no major problems, but paper with a large amount of ink may not have the ink fully penetrated into the base paper, making it easy for air bubbles to form during the lamination process, and causing the ink to separate from the base paper. After curing the digital decorative paper for four days, the ink and base paper are fully bonded, solving the problem of air bubbles and separation on the surface after finishing.

[0011] A manufacturing process for decorative panels, including the aforementioned digital decorative paper, is characterized by further comprising the following steps:

[0012] S1. Selecting Raw Materials

[0013] To ensure the best veneer effect for the digital decorative panels, all substrates are custom-made. Substrate parameters are carefully controlled, including formaldehyde level, water absorption swelling, static bending strength, surface bond strength, internal bond strength, and moisture content. Water absorption swelling must reach P6, with a 24-hour swelling time of <14%, and a moisture content of around 6% is ideal. The selection of raw materials for the decorative panel substrate is based on these parameters.

[0014] S2. Slice

[0015] The decorative panel substrate selected in S1 is sliced ​​according to the product's production size requirements;

[0016] S3. Drying

[0017] The sliced ​​decorative panel substrate is dried.

[0018] S4. Apply adhesive

[0019] Apply adhesive to the surface of the decorative panel substrate;

[0020] S5. Paving

[0021] Digital decorative paper is laid on the surface of the dried decorative panel substrate to form a slab;

[0022] S6. Pressing

[0023] The slab is fed into the hot press, and the hot press is closed to press the slab together. The hot press is a steam hot press, and the hot pressing environment is a closed space and the working humidity is maintained.

[0024] S7. Health Preservation

[0025] The laminated boards undergo a curing process.

[0026] S8. Sanding

[0027] The cured boards are then sanded.

[0028] S9. Cutting

[0029] The sanded decorative panel is basically formed and then cut according to the process requirements;

[0030] S10. Warehousing

[0031] The cut finished products are then stored in the warehouse.

[0032] Compared with the prior art, the present invention provides a novel production process for digital decorative paper and decorative panels, which has the following beneficial effects:

[0033] 1. The production process of this new type of digital decorative paper and decorative panel is based on the substrate indicators, including formaldehyde level, water absorption and swelling, static bending strength, surface bonding strength, internal bonding strength, moisture content, etc., to customize the substrate and ensure better veneer effect of the digital decorative panel.

[0034] 2. The production process of this new type of digital decorative paper and decorative panel uses wear-resistant paper with an optimal glue content of 115 grams and an evaporation rate of 6.5-7.0%, ensuring a better dry pressing effect for the digital decorative paper.

[0035] 3. The production process of this new type of digital decorative paper and decorative panel controls the ambient humidity, improves the digital equipment, improves the printing curve process, controls the amount of ink applied during printing, improves the printing step size, changes the original paper feeding and feathering, reduces the horizontal lines that appear during printing, and adds a drying section after the printing section and before the winding section. On the one hand, it can accelerate the penetration of printing ink into the base paper, and on the other hand, it controls the moisture content of the digital paper, improving the later bonding effect and bonding loss.

[0036] 4. The production process of this new type of digital decorative paper and decorative panel includes a curing process for the digital decorative paper. After curing for four days, the ink and the base paper are fully bonded, which solves the problems of bubbles and delamination on the surface after finishing. Attached Figure Description

[0037] Figure 1 This is a flowchart illustrating the production process of the novel digital decorative paper of this invention.

[0038] Figure 2 This is a flowchart illustrating the manufacturing process of the decorative panel of the present invention. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figure 1-2 This invention provides a technical solution, a novel production process for digital decorative paper, comprising the following steps:

[0041] a. Select digital base paper. To ensure the dry pressing effect of digital decorative paper, wear-resistant paper is selected as the digital base paper, and the wear-resistant paper process is improved. The normal 36-gram wear-resistant paper has an adhesive amount of 130 grams and an evaporation of about 8.0. The optimal adhesive amount for the wear-resistant paper used in digital decorative paper is 115 grams, with an evaporation of 6.5-7.0.

[0042] b. Digital patterns are printed on the surface of wear-resistant paper using digital printing equipment. Decorative paper printed by ordinary digital equipment is prone to absorbing moisture in environments with relatively high humidity, and has high requirements for environmental humidity. Improvements to digital equipment include improving the printing curve process, controlling the amount of ink applied during printing, improving the printing step size, changing the original paper feeding and feathering, reducing horizontal lines that appear during printing, and adding a drying section after the printing section and before the rewinding section. This can accelerate the penetration of printing ink into the base paper and control the moisture content of the digital paper, thereby improving the subsequent lamination effect and lamination loss.

[0043] c. Curing the printed paper for four days, and finally storing the resulting digital decorative paper. Normal digital paper orders have relatively short lead times. After printing, lamination production will be arranged directly. Paper with a small amount of ink is not a big problem, but paper with a large amount of ink may not have the ink fully penetrated into the base paper, which can easily cause air bubbles and delamination during the lamination process. After curing the digital decorative paper for four days, the ink and base paper can fully bond together, which solves the problem of air bubbles and delamination on the surface after finishing.

[0044] The curing process for paper products employs a traditional method for multi-layered composite wood, which involves stacking the materials in a well-ventilated indoor environment for a period of time to stabilize their moisture content. This ensures the material's stability and moisture content remain around 8%. The benefits of this curing process include increased density and hardness, enhanced fiber strength and durability, reduced shrinkage, improved dimensional accuracy, and reduced susceptibility to cracking.

[0045] A manufacturing process for decorative panels, including the aforementioned digital decorative paper, is characterized by further comprising the following steps:

[0046] S1. Selecting Raw Materials

[0047] To ensure the veneer effect of the digital decorative panels, all substrates are custom-made. Substrate parameters are controlled, including formaldehyde level, water absorption swelling, static bending strength, surface bond strength, internal bond strength, and moisture content, to guarantee the veneer effect. Water absorption swelling must reach P6, with a 24-hour swelling time of <14%, and a moisture content of around 6% is preferred. The selection of raw materials for the decorative panel substrate is based on these parameters.

[0048] S2. Slice

[0049] The decorative panel substrate selected in S1 is sliced ​​according to the product's production size requirements;

[0050] S3. Drying

[0051] The sliced ​​decorative panel substrate is dried.

[0052] S4. Apply adhesive

[0053] Apply adhesive to the surface of the decorative panel substrate;

[0054] S5. Paving

[0055] Digital decorative paper is laid on the surface of the dried decorative panel substrate to form a slab;

[0056] S6. Pressing

[0057] The slab is fed into a hot press, which is then closed to press the slab together. This hot press is a steam hot press, operating in a sealed environment with maintained humidity. Heating with steam in a relatively sealed space effectively accelerates the adhesive's solidification, improving processing efficiency. Maintaining a certain humidity level prevents rapid dehydration and property changes in the adhesive, thus improving processing quality. This heating method ensures the stability and durability of the decorative panel to a certain extent. During operation, the steam and humidity control parameters must be adjusted according to actual conditions to ensure the stability and safety of the processing. Different decorative panel materials and adhesive types also require corresponding adjustments and treatments based on their characteristics.

[0058] S7. Health Preservation

[0059] The laminated boards undergo a curing process.

[0060] S8. Sanding

[0061] The cured boards are then sanded.

[0062] S9. Cutting

[0063] The sanded decorative panel is basically formed and then cut according to the process requirements;

[0064] S10. Warehousing

[0065] The cut finished products are then stored in the warehouse.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A manufacturing process for decorative panels, characterized in that, Includes the following steps: S1. Selecting Raw Materials To ensure the veneer effect of digital decorative panels, the raw materials of the decorative panel substrate are selected according to the specifications. S2. Slice The decorative panel substrate selected in S1 is sliced ​​according to the product's production size requirements; S3. Drying The sliced ​​decorative panel substrate is dried. S4. Apply adhesive Apply adhesive to the surface of the decorative panel substrate; S5. Paving Digital decorative paper is laid on the surface of the dried decorative panel substrate to form a slab; The production process of the digital decorative paper includes the following steps: a. Select digital backing paper, using 36g abrasion-resistant paper material, and undergo two coating-smoothing and drying processes. The amount of adhesive is 115g, and the volatile content is 6.5%-7.0% by mass. b. Print digital patterns on the surface of digital base paper using digital printing equipment, control the humidity of the printing environment, improve the printing curve of the digital equipment, control the amount of ink applied during printing, improve the printing step size, change the original paper feeding and feathering, reduce the horizontal lines that appear during printing, and add a paper drying process after printing and before rewinding. c. Allow the printed paper to cure for four days, and finally store the resulting digital decorative paper. The curing process of the paper products involves placing the materials in an indoor ventilated environment for a period of time to stabilize the moisture content of the materials. S6. Pressing The slab is fed into the hot press, and the hot press is closed to press the slab together. S7. Health Preservation The pressed slab undergoes curing treatment; S8. Sanding The cured slab is then sanded. S9. Cutting The sanded decorative panel is basically formed and then cut according to the process requirements; S10. Warehousing The cut finished products are then stored in the warehouse.

2. The manufacturing process of a decorative panel according to claim 1, characterized in that: The raw material selection indicators for the decorative panel substrate include formaldehyde level, water absorption swelling, static bending strength, surface bonding strength, internal bonding strength and moisture content. The water absorption swelling index should reach P6 level, with a 24-hour water absorption swelling rate of <14% by mass fraction and a moisture content of 6%.

3. The manufacturing process of a decorative panel according to claim 1, characterized in that: The hot press is a steam hot press, and the hot pressing environment is a closed space that maintains the working humidity.

Images