Fiber weaving material surface decoration process

Abstract

The invention relates to the technical field of municipal environmental sanitation, and discloses a fiber woven material surface decoration technology. The method comprises the following steps: step 1, adopting bright dyed or electroplated silk threads b and a fiber material a to manufacture a fabric with a decorative effect through various textile processes; step 2, mixing glass fibers and epoxy resin to prepare a prepreg; and step 3, pressing the fabric with the decorative effect prepared in the step 1 and the prepreg prepared in the step 2 together in a heating and pressurizing manner until the epoxy resin in the prepreg completely infiltrates the fabric with the decorative effect to obtain a semi-finished product. The problem that a traditional fiber material cannot meet refined and diversified decoration is solved, the excellent mechanical property of the fiber material (glass fibers, carbon fibers, aramid fibers and the like) and the colorful and gorgeous appearance of textiles are combined, and more process choices and application scenes are provided for the surface CMF effect.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal environmental sanitation, and specifically to a surface decoration process for fiber woven materials. Background Art

[0002] 3C products, namely computers, communications, and consumer electronic products, widely use fiber materials. They are used to manufacture the casings of laptops, mobile phones, and tablet computers, providing lightweight and high-strength characteristics. Reinforced plastics (such as PC / ABS) are used for the casings of electronic devices to enhance their strength and heat resistance, internal brackets to improve the impact resistance and rigidity of the devices, or to manufacture flexible sensors and foldable electronic components. With the development of materials science and manufacturing technology, the application of fiber materials in 3C products will be more diverse and in-depth, helping to improve the performance and user experience of products.

[0003] With the demand for the development trend of thinner and lighter 3C products, especially folding machine products, the requirement for the rigidity of materials is getting higher and higher, while considering the material density to achieve the purpose of reducing the weight and thickness of the whole machine product. Therefore, fiber materials (such as glass fiber, carbon fiber, PI fiber, PBO fiber, etc.) are gradually used in such products. However, for the surface decoration of such materials, the conventional method is to spray paint and print on the surface, which cannot present further effects, resulting in limited use of materials and unable to meet the requirements of the rapidly updated 3C industry. Limited by the limitations of the existing spray painting and printing texture processes.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of the present application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a surface decoration process for fiber woven materials to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: including the following steps; Step 1: Use silk thread b with brightness by dyeing or electroplating and fiber material a, and make a decorative fabric through various textile processes; Step 2: Mix glass fiber and epoxy resin to make prepreg; Step 3: Press the decorative fabric made in Step 1 and the prepreg made in Step 2 together by heating and pressurizing until the epoxy resin in the prepreg completely infiltrates the decorative fabric to obtain a semi-finished product; Step 4: Make a color and light-shielding protective layer on the back surface of the semi-finished product made in Step 3; Step 5: Fabricate a transparent hardening layer on the front surface of the semi-finished product made in Step 3; Step 6: Obtain the finished product by means of CNC or punching.

[0007] Preferably, the compression molding temperature in Step 3 is 120~150 °C, and the time is 10~30 min.

[0008] Through the above technical solution, pressurization can help remove air bubbles in the mixture, improve the density and strength of the cured product. Heating can reduce the viscosity of the resin, making it easier to flow and penetrate, and at the same time accelerate the chemical reaction. At an appropriate temperature and pressure, the epoxy resin will gradually cure.

[0009] Preferably, the fibrous material a in Step 1 includes but is not limited to glass fiber, aramid fiber, pi fiber, carbon fiber, etc. The silk thread b with brightness by dyeing or electroplating can be real silk thread, nylon thread, polyester thread, etc. The electroplated silk thread can be metal silk thread, such as copper wire, aluminum wire or covered core silk thread, etc.

[0010] Through the above technical solution, the appearance of the fabric can be effectively increased, the aesthetic degree can be improved, and at the same time the overall quality can be further improved. The brightness can be increased by electroplating metal silk thread treatment.

[0011] Preferably, the fabric in Step 1 is locally or integrally woven with silk thread jacquard with metallic luster.

[0012] Preferably, the preparation method of the prepreg in Step 2 is as follows: (1) Mix epoxy resin and diluent in proportion to obtain a viscosity suitable for impregnation; (2) Then add an appropriate amount of curing agent and release agent and stir evenly; (3) Finally, add an appropriate amount of glass fiber and mix and stir to make the prepreg.

[0013] Preferably, the color and light-shielding protective layer in Step 4 can adopt UV coating and thermosetting coating, and the color can be adjusted by adding colorants. Ordinary spray paint or baking-type spray paint can also be used on the surface of epoxy resin to add the required color. Powder coating and rubber coating can also be used for protection and color modification.

[0014] Through the above technical solution, a color and light-shielding protective layer can be prepared on the back of the semi-finished product as needed, and it is easier to display the color and luster effect of fiber weaving.

[0015] Preferably, the transparent hardening layer in Step 5 can adopt polyurethane coating, polyacrylate coating, silicone coating or nano coating.

[0016] Through the above technical solution, the internal epoxy resin layer and fiber braided layer can be protected, and the protection effect of the product can be further satisfied.

[0017] In summary, the present application includes the following beneficial technical effects: (1) Combining fiber layers of different colors, textures or functions with resin to create unique visual effects and enhanced physical properties. When cured under pressure and heat, the fiber braided material can be shaped into a three-dimensional shape, increasing the aesthetic and functionality of the design; (2) Solving the problem that traditional fiber materials cannot meet the requirements of refined and diversified decoration, combining the excellent mechanical properties of fiber materials (such as glass fiber, carbon fiber, aramid fiber, etc.) with the colorful appearance of textiles, providing more process options and application scenarios for the surface CMF effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the fabric in the present invention; Figure 2 It is a schematic diagram of the overall structure of the finished product of a surface decoration process for a fiber braided material in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1-2 , the present invention provides a technical solution: including the following steps; Step 1: Use silk thread b with brightness by dyeing or electroplating and fiber materials a (including but not limited to glass fiber, aramid fiber, pi fiber, carbon fiber, etc.), and make a decorative fabric through various textile processes. Partially or wholly using jacquard weaving with silk thread having metallic luster can effectively increase the visual three-dimensional effect and perception of the finished product; Step 2: Mix epoxy resin and diluent in proportion to obtain a viscosity suitable for impregnation, then add an appropriate amount of curing agent and release agent, stir evenly, and finally add an appropriate amount of glass fiber and mix and stir to make a prepreg. When adding glass fiber for mixing, a vibration device (such as a vibration platform) can be used for vibration to accelerate the expulsion of internal air bubbles. At the same time, metallic luster particles can also be added to the epoxy resin to provide a unique color and luster effect for the fiber braided material; Step 3: Press the decorative fabric made in Step 1 and the prepreg made in Step 2 together by heating and pressing until the epoxy resin in the prepreg completely infiltrates the decorative fabric, obtaining a semi-finished product. The pressing and forming temperature is 120 - 150 °C, and the time is 10 - 30 min. Pressing can help remove the bubbles in the mixture, improve the density and strength of the cured product. Heating can reduce the viscosity of the resin, making it easier to flow and penetrate, and at the same time accelerate the chemical reaction. At appropriate temperature and pressure, the epoxy resin will gradually cure. After the curing is completed, gradually reduce the temperature to prevent stress and cracks caused by too rapid temperature change; Step 4: On the back surface of the semi-finished product made in Step 3, UV coatings and thermosetting coatings can be used, and the color can be adjusted by adding colorants. Ordinary spray paints or baking-type spray paints can also be used on the surface of the epoxy resin to add the required color. Powder coatings and rubber coatings can also be used for protection and color modification to make the color and light-shielding protective layer; Step 5: Make a transparent hardening layer on the front surface of the semi-finished product made in Step 3; Step 6: Obtain the finished product by means of CNC or punching, etc.

[0021] In Step 5, the transparent hardening layer can adopt a polyurethane coating (which can provide good abrasion resistance, chemical resistance and weather resistance while maintaining transparency), a polyacrylate coating (which has excellent transparency and gloss, and can also provide a certain degree of hardness and weather resistance), a silicone coating (which can endow the fabric with waterproof, oil-proof and stain-proof properties while maintaining transparency) or a nano-coating (which provides an ultra-thin, transparent and hardening layer with specific functions such as waterproof, oil-proof and antibacterial); Among them, the bright silk thread b using dyeing or electroplating methods can adopt real silk thread, nylon thread, polyester thread, etc. Using specific dyes and auxiliaries, the silk thread has higher gloss after dyeing. After dyeing, perform gloss finishing on the silk thread, such as heat setting, coating, etc. to improve the brightness. For electroplated silk thread, metal silk thread can be adopted, such as copper wire, aluminum wire, etc. The brightness can be increased through electroplating treatment. Common ones include silver plating, gold plating, chromium plating, etc., or core-spun silk thread (usually a metal film is coated on the fiber core material, and the gloss is increased through electroplating, such as nickel-plated nylon thread).

[0022] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface decoration process for fiber woven materials, The steps include: Step 1: using brightly dyed or electroplated silk thread b and fiber material a to make a fabric with decorative effect through various textile processes; Step 2: Mix glass fiber and epoxy resin to make prepreg; Step 3: pressing the fabric with decorative effect prepared in step 1 and the prepreg prepared in step 2 together by heating and pressurizing until the epoxy resin in the prepreg completely impregnates the fabric with decorative effect to obtain a semi-finished product; Step 4: Making a color and light-shielding protective layer on the back surface of the semi-finished product made in step 3; Step 5: Making a transparent hardened layer on the front surface of the semi-finished product made in step 3; Step 6: Get the finished product through CNC or punching.

2. A fiber braided material surface decoration process according to claim 1, characterized in that: The pressing molding temperature in step 3 is 120-150°C and the time is 10-30 minutes.

3. A fiber braided material surface decoration process according to claim 1, characterized in that: The fiber material a in step one includes but is not limited to glass fiber, aramid fiber, pi fiber and carbon fiber, etc. The bright silk thread b that is dyed or electroplated can be made of silk thread, nylon thread and polyester thread, etc. The electroplated silk thread can be made of metal wire, such as copper wire, aluminum wire or core-spun silk thread, etc.

4. A fiber braided material surface decoration process according to claim 1, characterized in that: The fabric in step 1 is partially or entirely woven with silk jacquard weaving having metallic luster.

5. The surface decoration process of a fiber braided material according to claim 1, characterized in that: The preparation method of the prepreg in step 2 is: (1) Mix the epoxy resin and the diluent in proportion to obtain a viscosity suitable for impregnation; (2) Then add appropriate amount of curing agent and release agent and stir evenly; (3) Finally, add an appropriate amount of glass fiber, mix and stir to make a prepreg.

6. The surface decoration process of fiber braided material according to claim 1, characterized in that: The color and light-shielding protective layer in step four can be made of UV paint and thermosetting paint, and the color can be adjusted by adding colorant. Ordinary spray paint or baking spray paint can be used on the epoxy resin surface to add the required color. Powder coating and rubber coating can also be used for protection and color change.

7. The surface decoration process of fiber braided material according to claim 1, characterized in that: In step five, the transparent hardened layer may be a polyurethane coating, a polyacrylate coating, a silicone coating or a nano coating.

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