A method of fabric particle decoration
By controlling the melting and penetration of TPU particles into the fabric using a jig, and by optimizing particle size and hardness, the problems of poor adhesion and unclear patterns in fabric particle decoration technology have been solved, achieving a decorative effect with high adhesion and clarity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FUJIAN HUAFENG SPORTING GOODS TECH CO LTD
- Filing Date
- 2026-06-30
- Publication Date
- 2026-08-04
AI Technical Summary
Existing fabric particle decoration technology suffers from problems such as poor adhesion of granular materials, easy peeling, low pattern accuracy, and poor visual effect.
The melting of TPU particles is controlled by a jig. By matching the hollow structure of the jig with the pattern and applying external force, the TPU particles are partially or completely melted and penetrated into the fabric to form a continuous decorative pattern. The particle size, hardness, and jig depth of the TPU particles are optimized to ensure a granular texture and adhesion.
It improves the adhesion of the granular decorative pattern to the fabric and the clarity of the pattern, while maintaining the uneven visual effect of the granules, thus achieving a highly refined decorative effect.
Smart Images
Figure CN122504083A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of fabric decoration technology and relates to a method for decorating fabric particles. Background Technology
[0002] Fabric decoration techniques mainly include heat transfer, printing, molding, embroidery, and sewing of decorative parts. Particle decoration is also a type of fabric decoration technique, which involves fixing granular materials onto the fabric to create a textured visual effect. However, there are some problems with the practical application of particle decoration techniques, including: (1) Particle materials are difficult to penetrate into the fabric structure effectively, resulting in poor adhesion and easy detachment; (2) If the particles are completely melted, although the penetration ability can be improved, it will become a flat decoration and lose the textured visual effect; (3) The coating method of particles leads to low pattern accuracy and insufficient clarity.
[0003] Therefore, existing fabric particle decoration technology still needs to be improved. Summary of the Invention
[0004] To address the aforementioned technical problems, this invention provides a method for decorating fabric particles.
[0005] The technical solution of the present invention is as follows:
[0006] A method for decorating fabric with granules, comprising the following steps: Provide a corresponding jig according to the design pattern of the fabric, wherein the cutout structure of the jig matches the pattern; TPU particles are laid into the hollow structure of the fixture; The surface of the TPU particles partially or completely melts and fuses under external force, penetrating and / or bonding to the fabric. After cooling, the fixture is removed to obtain a fabric decorated with particles.
[0007] Preferably, the TPU particles are adsorbed and adhere tightly to the surface of the fabric.
[0008] More preferably, the bottom of the non-perforated structure of the fixture is provided with a vent hole, which is connected to the perforated structure; During installation, the TPU particles are drawn in through the ventilation holes so that they adhere to and stick tightly to the surface of the fabric.
[0009] Preferably, the average particle size of the TPU particles is 0.5-1 mm.
[0010] More preferably, the height of the TPU particles does not exceed twice the average particle size of the TPU particles.
[0011] Preferably, the depth of the fixture is greater than the average particle size of the TPU particles, but less than twice the average particle size of the TPU particles.
[0012] More preferably, the depth of the fixture is 1.2-1.7 times the average particle size of the TPU particles.
[0013] Preferably, the TPU particles include at least bottom-layer particles and top-layer particles; The bottom layer particles are in close contact with the surface of the fabric, and the top layer particles are located on top of the bottom layer particles; The hardness of the upper layer particles is greater than that of the lower layer particles.
[0014] More preferably, the hardness of the bottom layer particles is 50A-95A, and the hardness of the top layer particles is 60D-90D.
[0015] Preferably, the external force is selected from high-frequency discharge with a frequency of 27.12 MHz, a duration of 3-8 s, and a pressure of 0.1-0.5 MPa; Alternatively, the external force can be selected from heating and pressurization, wherein the heating temperature is 150-170℃, the pressurization pressure is 0.2-1MPa, and the heating and pressurization time is 5-20s.
[0016] The beneficial effects of this invention are: (1) This invention controls the pattern formed after the TPU particles melt by setting a fixture, and the TPU particles partially melt (surface melting or partial surface melting with no internal melting). The melted part of the TPU particle surface easily penetrates into the fabric layer and forms a continuous decorative pattern, while the non-melting part inside ensures that the particles have a certain degree of integrity and the decorative pattern has an uneven, granular feel. Therefore, the method of this invention can improve the adhesion of the granular decorative pattern to the fabric, and the pattern has high clarity and a good visual effect of granular texture.
[0017] (2) By optimizing the combination of TPU particle size, fixture depth, and TPU particle hardness, this invention obtains a highly detailed decorative pattern with good adhesion to the fabric. Attached Figure Description
[0018] Figure 1 This is a physical image of the decorative pattern obtained in Example 1.
[0019] Figure 2 This is a physical image of the decorative pattern obtained in Example 3. Detailed Implementation
[0020] The technical solution of the present invention will be further explained and described below through specific embodiments.
[0021] To address the problems of imprecise patterns and poor adhesion to fabrics in existing particle-decorated patterns, this invention proposes a method for fabric particle decoration, comprising the following steps: Provide corresponding jigs according to the design pattern of the fabric, and the cutout structure of the jig matches the pattern; TPU particles are laid into the hollow structure of the fixture; The surface of TPU particles partially or completely melts and fuses under external force, penetrating and / or bonding to the fabric. After cooling and removal of the fixture, the fabric with particle decoration is obtained.
[0022] In this invention, a fixture with a hollow structure that matches the design pattern is used to precisely control the design pattern, thereby achieving a refined decorative pattern. The surface of the TPU particles is partially or completely melted. The melted part can penetrate and / or bond the fabric, or it can fuse the TPU particles so that the unconnected particles form a continuous bonded state, forming a decorative pattern. At the same time, since the TPU particles are only partially or completely melted on the surface, the granular shape of the TPU particles can still be maintained, thereby obtaining a decorative pattern with a granular feel, good adhesion, and refinement on the fabric surface.
[0023] In this invention, the color of the TPU particles is not particularly limited and can be selected as needed, such as green or yellow. Color powder or pigment can be pre-melted and processed into the TPU particles. The fabric is also not particularly limited; it can be clothing fabric, shoe fabric, woven fabric, leather fabric, or other types of fabric, such as TPU material. This invention allows for the simultaneous use of multiple jigs and TPU particles of different colors to form multiple decorative patterns of different colors and shapes on the fabric.
[0024] In some embodiments, TPU particles are adsorbed and adhered tightly to the surface of the fabric. This adsorption and adhesion facilitates the more uniform distribution of TPU particles within the perforated structure of the fixture. When the surface of the TPU particles melts and fuses under external force, a refined decorative pattern can be formed. This also prevents significant movement of the TPU particles under external force, which could result in insufficient refinement of the decorative pattern or a large discrepancy between the formed pattern and the design, such as a significant deviation in thickness at different locations from the original design.
[0025] In some embodiments, the bottom of the non-perforated structure of the fixture is provided with a vent hole, which is connected to the perforated structure. During installation, TPU particles are drawn in through ventilation holes so that they can adhere to the surface of the fabric.
[0026] The bottom of the non-perforated structure of the fixture is equipped with ventilation holes, which are connected to the perforated structure. The ventilation holes can be connected to a vacuum for air intake. During the process of TPU particles being laid on the fixture and under external force, the TPU particles are tightly adsorbed and maintain a relatively stable position in the fixture. This avoids the lack of fineness of the decorative pattern or the visual effect of the decorative pattern deviating significantly from the original design due to significant movement of the TPU particles.
[0027] In some embodiments, the average particle size of the TPU particles is 0.5-1 mm. This invention has found that an average particle size of 0.5-1 mm for the TPU particles is more suitable for the method of this invention. If the particle size of the TPU particles is too low, such as 0.1-0.3 mm, it is not easy for only the surface to melt; the interior of the particles may also melt simultaneously, thus failing to obtain a textured pattern. If the particle size of the TPU particles is too high, such as reaching 1.5-2 mm, the melted portion of the TPU particles will be less, resulting in less penetration into the fabric and / or less fusion, making it impossible to obtain a finely detailed decorative pattern with good adhesion.
[0028] In some embodiments, the height of the TPU particles does not exceed twice the average particle size of the TPU particles. That is, even if there are multiple layers of TPU particles stacked in the hollow structure of the fixture, the number of stacked layers does not exceed two. This ensures that the TPU particles at different locations are subjected to relatively uniform external force when applied. For example, assuming that the number of stacked TPU particles is three or more layers, the TPU particles at the bottom and top layers may be subjected to external force more quickly or significantly. The TPU particles at the bottom and top layers can melt faster and more, while the TPU particles in the middle layers melt less and more slowly. This will result in different external force applied to the middle layers and the bottom / top layers of TPU particles, affecting the fusion of TPU particles, the fineness of decorative patterns, etc., or causing poor adhesion between TPU particles, leading to poor overall adhesion of the decorative pattern.
[0029] In some embodiments, the depth of the fixture is greater than the average particle size of the TPU particles but less than twice the average particle size of the TPU particles. That is, when the TPU particles are stacked in a single layer, all the TPU particles are stacked inside the fixture; when the TPU particles are stacked in a double layer, the upper layer of TPU particles is partially exposed outside the fixture. This technical solution is beneficial for the surface melting of the TPU particles under external force.
[0030] In some embodiments, the depth of the fixture is 1.2-1.7 times the average particle size of the TPU particles. For example, the depth of the fixture can be 1.2, 1.3, 1.4, 1.5, 1.6, or 1.7 times the average particle size of the TPU particles. For instance, if the average particle size of the TPU particles is 1 mm, the depth of the fixture can be 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, or 1.7 mm; if the average particle size of the TPU particles is 0.5 mm, the depth of the fixture can be 0.6 mm, 0.7 mm, or 0.8 mm.
[0031] In some embodiments, TPU particles include at least bottom-layer particles and top-layer particles; The bottom layer of particles adheres closely to the surface of the fabric, while the top layer of particles sits on top of the bottom layer particles. The hardness of the upper particles is greater than that of the lower particles.
[0032] The bottom-layer particles, being in contact with the fabric and exhibiting better adhesion, have lower hardness, melt more readily, and penetrate the fabric more easily, fusing and forming good adhesion. This also enhances the adhesion between the decorative pattern and the fabric. Even if the bottom-layer particles completely melt, the texture of the decorative fabric remains unaffected. The top-layer particles, with higher hardness and less melting, fuse with the melted bottom-layer particles while avoiding excessive melting, maintaining a good texture and resulting in a decorative pattern with a distinct grainy feel. Therefore, in the above technical solution, the bottom-layer particles provide penetration and fusion for the decorative pattern, while the top-layer particles provide the grainy effect. Together, the bottom and top-layer particles create a decorative pattern with a distinct grainy feel and good adhesion.
[0033] In some embodiments, the hardness of the bottom layer particles is 50A-95A, and the hardness of the top layer particles is 60D-90D. For example, the hardness of the bottom layer particles can be 50A, 55A, 60A, 65A, 70A, 75A, 80A, 85A, 90A, 95A, etc., and the hardness of the top layer particles can be 60D, 70D, 80D, 90D, etc.
[0034] In some embodiments, the external force is selected from high-frequency discharge, with a frequency of 27.12 MHz, a duration of 3-8 s, and a pressure of 0.1-0.5 MPa; high-frequency discharge is a high-frequency heat sealing method that can quickly partially or completely melt the surface of TPU particles.
[0035] Alternatively, the external force can be selected from heating and pressurization, with the heating temperature at 150-170℃, the pressurization pressure at 0.2-1MPa, and the heating and pressurization time at 5-20s. Heating and pressurization can also achieve the purpose of partially or completely melting the surface of the TPU particles of the present invention.
[0036] The technical solution of the present invention will be further described and illustrated below with reference to various embodiments. Unless otherwise specified, the parts mentioned in the following embodiments are parts by weight.
[0037] Example 1 TPU granules in different colors are available. The average particle size of the TPU granules is 0.5mm and the hardness is 80A.
[0038] Provide corresponding jigs and TPU particles of the corresponding color according to the design pattern of the TPU fabric. The hollow structure of the jig matches the pattern, and the depth of the hollow structure is 0.8mm. TPU particles of corresponding colors are laid in the hollow structure of the fixture (more than 1,000 TPU particles are laid in total). The TPU particles are in two layers and cover the hollow structure of the fixture. The bottom of the non-hollow structure of the fixture is provided with ventilation holes, which are connected to the hollow structure. The ventilation holes are connected to an air suction device to suck in air. The TPU particles are adsorbed and adhere tightly to the surface of the TPU fabric.
[0039] A high-frequency welding machine was used to discharge TPU particles at a frequency of 27.12 MHz for 5 seconds at a pressure of 0.2 MPa. Partial melting occurred on the surface of the TPU particles, and the molten TPU penetrated into the fabric and fused with it. After cooling and removal of the fixture, the fabric with particle decoration was obtained.
[0040] Appendix Figure 1 The image shows a physical sample of the TPU fabric with granular decoration obtained in this embodiment. Two red patterns, two green patterns, and three purple patterns are decorative patterns. It can be seen that the decorative patterns have good boundary clarity and clear granular texture. According to the method in GB / T39368-2020, after 10,000 bending cycles, the decorative patterns on the TPU fabric with granular decoration obtained in this embodiment did not peel off, and the granule peeling rate was less than 0.5%, demonstrating good adhesion.
[0041] Example 2 The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the TPU particles are in two layers, and the distribution is adjusted as follows: the hardness of the lower TPU particles (close to the fabric) is 80A, and the hardness of the upper TPU particles is 80D, that is, the hardness of the upper TPU particles is higher than that of the lower TPU particles. The remaining steps remain unchanged.
[0042] The fabric with particle decoration obtained in this embodiment has a more obvious particle texture compared to the fabric with particle decoration in Embodiment 1, and the decorative pattern does not fall off after 10,000 bends, with a particle shedding rate of less than 0.5%.
[0043] Example 3 TPU granules in different colors are available. The average particle size of the TPU granules is 0.6mm and the hardness is 70A.
[0044] Provide corresponding jigs and TPU particles of the corresponding color according to the design pattern of the TPU fabric. The hollow structure of the jig matches the pattern, and the depth of the hollow structure is 0.8mm. TPU particles of the corresponding color are laid in the hollow structure of the fixture. The TPU particles are distributed in a single layer in the hollow structure. The bottom of the non-hollow structure of the fixture is provided with ventilation holes, which are connected to the hollow structure. An air suction device is connected to the air suction holes to suck in air. The TPU particles are adsorbed and adhere tightly to the surface of the fabric.
[0045] TPU granules are heated and pressurized using a molding machine at a temperature of 160℃, a pressure of 0.5MPa, and a time of 10s. The surface of the TPU granules partially melts, and the molten TPU penetrates into the fabric and fuses with it. After cooling, the fixture is removed to obtain fabric with granule decoration.
[0046] A photograph of the particle-decorated fabric obtained in this embodiment is attached. Figure 2 As shown, there are 4 different colors and 5 decorative patterns. It can be seen that the decorative patterns have good boundary clarity and clear granularity. According to the method of GB / T 39368-2020, the TPU fabric with granular decoration obtained in this embodiment did not detach after 10,000 bending cycles, and the granule detachment rate was less than 0.5%, showing good adhesion.
[0047] Example 4 The difference between this embodiment and Embodiment 3 is that in Embodiment 3, an additional layer of TPU particles is added to the TPU particles. The average particle size of the added TPU particles is 0.5 mm, and the hardness is 60D. The remaining steps remain unchanged to obtain a fabric with particle decoration.
[0048] Example 5 The difference between this embodiment and Embodiment 3 is that in Embodiment 3, an additional layer of TPU particles is added to the TPU particles. The average particle size of the added TPU particles is 0.5 mm, and the hardness is 80D. The remaining steps remain unchanged.
[0049] Example 6 Provide corresponding jigs according to the fabric design pattern. The cutout structure of the jig matches the pattern, and the depth of the cutout structure is 1.5mm. TPU particles (average particle size 0.8mm, hardness 70D) are laid in the hollow structure of the fixture. The TPU particles are distributed in two layers in the hollow structure. The bottom of the non-hollow structure of the fixture is provided with ventilation holes, which are connected to the hollow structure. An air suction device is connected to the air suction holes to suck up air. The TPU particles are adsorbed and adhere tightly to the surface of the fabric.
[0050] TPU granules are heated and pressurized using a molding machine at a temperature of 170℃, a pressure of 0.5MPa, and a time of 12s. The surface of the TPU granules partially melts, and the molten TPU penetrates into the fabric and fuses with it. After cooling, the fixture is removed to obtain a fabric with granule decoration.
[0051] Example 7 The difference between this embodiment and Embodiment 6 is that in Embodiment 6, the heating and pressurization time was adjusted from 12s to 15s. The remaining steps remain unchanged.
[0052] Performance testing The clarity and graininess of the decorative patterns were rated by five trained volunteers, and the average of the five ratings was taken.
[0053] Pattern clarity rating: 3 points, high pattern clarity and good edge clarity; 2 points, average pattern clarity and average edge clarity; 1 point, poor pattern clarity and poor edge clarity. Graininess rating: 3 points, graininess is obvious and uniform; 2 points, graininess is average; 1 point, graininess is not obvious and is not uniform.
[0054] Adhesion: After bending 10,000 times according to the method of GB / T 39368-2020, observe whether the decorative pattern is completely or partially peeled off and test the peeling rate of the particles.
[0055] The results are shown in Table 1 below.
[0056] Table 1
[0057] Therefore, as shown in Table 1, the decorative patterns obtained by the method of decorating fabrics with TPU particles according to the present invention have the characteristics of high pattern clarity, strong particle texture, and good adhesion. When the TPU particles have a double-layer structure, the lower layer of TPU particles has a relatively low hardness, and the upper layer of TPU particles has a relatively high hardness, which can further improve the particle texture while maintaining pattern clarity and good adhesion.
[0058] As described above, the basic principles, main features, and advantages of the present invention have been shown and described. Those skilled in the art should understand that the present invention is not limited to the above embodiments, which are merely preferred embodiments and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the patent and the description should still fall within the scope of the present invention. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A method for decorating fabric with granules, characterized in that the steps include... include: Provide a corresponding jig according to the design pattern of the fabric, wherein the cutout structure of the jig matches the pattern; TPU particles are laid into the hollow structure of the fixture; The surface of the TPU particles partially or completely melts and fuses under external force, penetrating and / or bonding to the fabric. After cooling, the fixture is removed to obtain a fabric decorated with particles.
2. The method for decorating fabric particles according to claim 1, characterized in that, The TPU particles are adsorbed and adhere tightly to the surface of the fabric.
3. The method for decorating fabric particles according to claim 2, characterized in that, The bottom of the non-perforated structure of the fixture is provided with a vent hole, which is connected to the perforated structure. During installation, the TPU particles are drawn in through the ventilation holes so that they adhere to and stick tightly to the surface of the fabric.
4. The method for decorating fabric particles according to claim 1, characterized in that, The average particle size of the TPU particles is 0.5-1 mm.
5. The method for decorating fabric particles according to claim 4, characterized in that, The height of the TPU particles does not exceed twice the average particle size of the TPU particles.
6. The method for decorating fabric particles according to claim 1, characterized in that, The depth of the fixture is greater than the average particle size of the TPU particles, but less than twice the average particle size of the TPU particles.
7. The method for decorating fabric particles according to claim 6, characterized in that, The depth of the fixture is 1.2-1.7 times the average particle size of the TPU particles.
8. The method for decorating fabric particles according to claim 1, characterized in that, The TPU particles include at least bottom-layer particles and top-layer particles; The bottom layer particles are in close contact with the surface of the fabric, and the top layer particles are located on top of the bottom layer particles; The hardness of the upper layer particles is greater than that of the lower layer particles.
9. The method for decorating fabric particles according to claim 8, characterized in that, The bottom layer particles have a hardness of 50A-95A, and the top layer particles have a hardness of 60D-90D.
10. The method for decorating fabric particles according to claim 1, characterized in that, The external force is selected from high-frequency discharge with a frequency of 27.12 MHz, a duration of 3-8 s, and a pressure of 0.1-0.5 MPa. Alternatively, the external force can be selected from heating and pressurization, wherein the heating temperature is 150-170℃, the pressurization pressure is 0.2-1MPa, and the heating and pressurization time is 5-20s.