Manufacturing process of soft fabric shaped trademark

Abstract

The invention discloses a manufacturing process of a soft cloth shaping trademark, and relates to the technical field of cloth trademark manufacturing. The process comprises the following steps: firstly, laying a polyester positioning membrane in a hot-pressing area of a hot-pressing lower die, coating a first hot melt adhesive layer, then laying a polyurethane foaming layer, coating a second hot melt adhesive layer, and then laying soft cloth to form a blank; then jointly hot-pressing the blank by using a hot-pressing upper die and a hot-pressing lower die with a trademark pattern female die, and naturally cooling to form a finished product with trademark characters; and finally, adhering soft cloth to one side of the finished product with the trademark characters. According to the process, by optimizing material selection and process parameters, the manufactured trademark is soft, comfortable and high in durability. Meanwhile, the production process is simplified, rapid production is achieved, and the raw material cost and the labor cost are reduced. And in addition, the use of chemical substances is reduced, the environment-friendly effect is achieved, and the high-quality and high-efficiency production requirements of the garment market for trademarks can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric trademark production, and specifically to a production process for soft fabric shaped trademarks. Background Art

[0002] In the era of the booming development of the current clothing market, the sales volume of clothing shows a sharp upward trend. With the continuous improvement of consumers' demands for clothing quality and personalization, the trademark patterns on clothing, as an important manifestation of brand identity and product features, have also seen a significant increase in demand. At the same time, in order to meet the rapidly changing needs of the market, the production efficiency of clothing trademarks also needs to be significantly improved compared to the past.

[0003] Traditional clothing trademark production processes have many drawbacks. Traditional processes usually first use a mold for pressing and shaping, and then set silicone or glue at the groove position to fix the trademark pattern. This production method has obvious defects. Firstly, the trademark products produced are relatively hard in texture and lack softness, which not only affects the overall wearing comfort of the clothing but also reduces consumers' evaluation of clothing quality. Secondly, over time, such trademarks are prone to breakage or fault problems, seriously affecting the durability and service life of the trademarks and increasing the after-sales costs of clothing brands.

[0004] From the perspective of production efficiency, the production speed of traditional processes is slow. In the process of injecting silicone, a large amount of time is required for precise operation, and after injecting silicone, it is also necessary to wait for it to cool and solidify, which further prolongs the production cycle. The entire processing method has cumbersome procedures, involving multiple steps such as mold pressing, silicone injection, and cooling. Each step requires strict control, resulting in low production efficiency and making it difficult to meet the market's demand for rapid and large-scale supply of clothing trademarks.

[0005] In addition, the production cost of traditional processes is relatively high. The production and maintenance of molds require a large amount of capital investment, and the usage cost of raw materials such as silicone cannot be underestimated. Coupled with the increase in labor costs brought about by cumbersome procedures, the production cost of traditional clothing trademarks remains high, squeezing the profit space of clothing enterprises.

[0006] In summary, traditional clothing trademark production processes have obvious deficiencies in terms of product quality, production efficiency, and cost control, and it is difficult to meet the rapid development needs of the current clothing market. Therefore, researching and developing a new production process for soft fabric shaped trademarks has important practical significance and market value. Summary of the Invention

[0007] In view of the deficiencies of the prior art, the present invention provides a production process for soft fabric shaped trademarks, which solves the problems raised in the above background art.

[0008] To achieve the above object, the present invention is realized through the following technical solutions: A manufacturing process for a soft fabric shaped trademark, comprising the following steps: S1. Lay the positioning film on the hot pressing area of the lower hot pressing die; S2. Coat and set a first hot melt adhesive layer on the upper surface of the positioning film; S3. Lay a foaming layer on the upper part of the first hot melt adhesive layer; S4. Coat and set a second hot melt adhesive layer on the upper surface of the foaming layer; S5. Lay a soft fabric on the upper part of the second hot melt adhesive layer to form a blank; S6. A trademark pattern concave die is provided at the bottom of the upper hot pressing die. The trademark pattern concave die and the lower hot pressing die are jointly hot pressed on the blank. After natural cooling, a finished product with trademark characters is formed; S7. Bond a soft fabric on the side of the finished product with trademark characters to obtain a soft fabric shaped trademark.

[0009] Further, the positioning film is a polyester film with a thickness of [0.05, 0.15] mm.

[0010] Further, the coating thickness of the first hot melt adhesive layer is [0.1, 0.3] mm, and the melting temperature of the first hot melt adhesive layer is [80, 100] °C.

[0011] Further, the foaming layer is a polyurethane foaming layer with a foaming ratio of [3, 8] times and a thickness of [1, 3] mm.

[0012] Further, the coating thickness of the second hot melt adhesive layer is [0.1, 0.3] mm, and the melting temperature of the second hot melt adhesive layer is [90, 110] °C.

[0013] Further, the soft fabric is one of pure cotton fabric, polyester fabric or nylon fabric, and its gram weight is [100, 300] g / m².

[0014] Further, the depth of the trademark pattern concave die is [0.2, 0.5] mm, and the accuracy of its pattern is ±0.05 mm.

[0015] Further, in step S7, the adhesive used for bonding the soft fabric is a waterborne polyurethane adhesive, and its coating amount is [10, 30] g / m². After bonding, it is cured in an environment of [20, 30] °C for [24, 48] h.

[0016] Further, in step S6, the trademark pattern concave die and the lower hot pressing die are jointly hot pressed on the blank at a temperature of [120, 160] °C, the hot pressing pressure is [0.2, 0.5] MPa, and the hot pressing time is [10, 30] s.

[0017] Further, before step S1, it also includes preprocessing the positioning diaphragm. The preprocessing includes placing the positioning diaphragm in an environment with a temperature of [40, 60] °C and a humidity of [30, 50]% for [2, 4] h to remove static electricity and impurities on the surface of the positioning diaphragm.

[0018] The present invention provides a manufacturing process for a soft fabric shaped trademark. Compared with the prior art, it has the following beneficial effects: 1. The trademark made by this manufacturing process for soft fabric shaped trademarks overcomes the defect of the traditional trademark being too hard in texture. By using specific soft fabrics (such as pure cotton fabric, polyester fabric or nylon fabric) and reasonable process parameter settings, the trademark has excellent softness. This soft characteristic can significantly improve the overall wearing comfort of the clothing, so that consumers will not feel discomfort due to the hard trademark during the wearing process, enhancing the fit and skin-friendly nature between the clothing and the human skin, thereby improving consumers' recognition and satisfaction of the clothing quality; 2. The trademark made by this process has good durability and effectively solves the problem of the traditional trademark being easy to break or have a fault. During the manufacturing process, by precisely controlling parameters such as the hot pressing temperature, pressure and time, a firm combination is achieved between the trademark pattern and the soft fabric. At the same time, it avoids the disadvantages of easy aging and easy shedding caused by using silicone for fixation in the traditional process, greatly extending the service life of the trademark. Even after long-term wearing and washing, the trademark can still remain complete and clear, reducing the after-sales maintenance cost of the clothing brand and enhancing the brand image; 3. Compared with the cumbersome processes of the traditional clothing trademark manufacturing process, this process has been significantly optimized and simplified. The traditional process needs to go through multiple steps such as die pressing, silicone injection, and cooling, while this process integrates multiple processes into one by means of one-time hot pressing. During the hot pressing process, the trademark pattern concave die and the hot pressing lower die work together to directly form a finished product with trademark characters on the blank, without additional silicone injection and cooling links, greatly shortening the production cycle and improving the production efficiency; 4. Due to the simplification of the process and the precise control of the hot pressing parameters, this process can achieve the rapid production of trademarks. In actual production, the production rhythm can be flexibly adjusted according to market demand to quickly respond to market changes. Whether it is small-batch customization or large-scale production, it can be efficiently completed, meeting the clothing market's demand for rapid and large-scale supply of trademarks, and helping clothing enterprises to quickly launch new products and seize market share. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of S1 in the present invention; Figure 2 It is a schematic structural diagram of S2 in the present invention; Figure 3 Schematic diagram of the structure of S3 in the present invention; Figure 4 Schematic diagram of the structure of S4 in the present invention; Figure 5 Schematic diagram of the structure of S5 in the present invention; Figure 6 Schematic diagram of the structure of S6 in the present invention; Figure 7 Schematic diagram of the structure of S7 in the present invention; Figure 8 Schematic diagram of the structure of the upper and lower hot pressing molds in the present invention.

[0020] In the figure: 1, positioning diaphragm; 2, first hot melt adhesive layer; 3, foaming layer; 4, second hot melt adhesive layer; 5, soft fabric; 6, upper hot pressing mold; 61, die for trademark pattern; 7, lower hot pressing mold; 8, finished product; 9, protective film. Detailed implementation method

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Embodiment 1

[0022] The soft fabric shaped trademark is manufactured according to the following steps in this embodiment: 1. Pretreatment of the positioning diaphragm Place the polyester positioning diaphragm 1 with a thickness of 0.1 mm in an environment with a temperature of 50 °C and a humidity of 40% for 3 h to remove static electricity and impurities on the surface of the positioning diaphragm 1. Then, lay the pretreated positioning diaphragm 1 in the hot pressing area of the lower hot pressing mold 7.

[0023] 2. Coating the first hot melt adhesive layer Use a coating device to coat the first hot melt adhesive layer 2 on the upper surface of the positioning diaphragm 1, with a coating thickness of 0.2 mm. The melting temperature of the first hot melt adhesive layer 2 is 90 °C.

[0024] 3. Laying the foaming layer Lay a polyurethane foaming layer 3 with a foaming ratio of 5 times and a thickness of 2 mm on the upper part of the first hot melt adhesive layer 2.

[0025] 4. Coating the second hot melt adhesive layer Coat the second hot melt adhesive layer 4 on the upper surface of the foaming layer 3, with a coating thickness of 0.2 mm. The melting temperature of the second hot melt adhesive layer 4 is 100 °C.

[0026] 5. Lay a soft cloth to form a blank Select a pure cotton cloth with a weight of 200 g / m² as the soft cloth 5, and lay it on the upper part of the second hot melt adhesive layer 4 to form a blank.

[0027] 6. Hot press for molding On the bottom of the hot press upper mold 6, there is a trademark pattern female mold 61 with a depth of 0.3 mm and a pattern accuracy of ±0.05 mm. The trademark pattern female mold 61 and the hot press lower mold 7 are hot pressed on the blank together at a temperature of 140 °C and a pressure of 0.3 MPa for 20 s. After natural cooling, a finished product 8 with trademark characters is formed.

[0028] 7. Bond the soft cloth Use an aqueous polyurethane adhesive to bond the soft cloth 5 on the side of the finished product 8 with trademark characters. The coating amount of the aqueous polyurethane adhesive is 20 g / m², and after bonding, it is cured at 25 °C for 36 h to obtain a soft cloth shaped trademark. Example 2

[0029] The manufacturing steps of this example are as follows: 1. Pretreat the positioning film Place the polyester positioning film 1 with a thickness of 0.08 mm in an environment with a temperature of 45 °C and a humidity of 35% for 2.5 h. After pretreatment, lay it in the hot press area of the hot press lower mold 7.

[0030] 2. Coat the first hot melt adhesive layer Adopt a suitable coating process to coat the first hot melt adhesive layer 2 on the upper surface of the positioning film 1, with a coating thickness of 0.15 mm. The melting temperature of the first hot melt adhesive layer 2 is 85 °C.

[0031] 3. Lay the foaming layer Lay a polyurethane foaming layer 3 with a foaming ratio of 4 times and a thickness of 1.5 mm on the upper part of the first hot melt adhesive layer 2.

[0032] 4. Coat the second hot melt adhesive layer Coat the second hot melt adhesive layer 4 on the upper surface of the foaming layer 3, with a coating thickness of 0.15 mm. The melting temperature of the second hot melt adhesive layer 4 is 95 °C.

[0033] 5. Lay a soft cloth to form a blank Select a polyester cloth with a weight of 150 g / m² as the soft cloth 5, and lay it on the upper part of the second hot melt adhesive layer 4 to form a blank.

[0034] 6. Hot press for molding The depth of the die 61 for the trademark pattern at the bottom of the hot pressing upper die 6 is 0.25 mm, the pattern accuracy is ±0.05 mm. The die 61 for the trademark pattern and the hot pressing lower die 7 hot press the blank at a temperature of 130 °C and a pressure of 0.25 MPa. The hot pressing time is 15 s. After natural cooling, the finished product 8 with trademark characters is obtained.

[0035] 7. Bond the soft fabric Bond the soft fabric 5 on the side of the finished product 8 with trademark characters using an aqueous polyurethane adhesive. The adhesive coating amount is 15 g / m², and it is cured for 40 h in an environment of 22 °C to make the soft fabric shaped trademark. Example 3

[0036] This example manufactures the soft fabric shaped trademark according to the following process: 1. Pretreatment of the positioning film Place the polyester positioning film 1 with a thickness of 0.12 mm in an environment with a temperature of 55 °C and a humidity of 45% for 3.5 h for pretreatment, and then lay it in the hot pressing area of the hot pressing lower die 7.

[0037] 2. Coat the first hot melt adhesive layer Coat the first hot melt adhesive layer 2 on the upper surface of the positioning film 1, with a coating thickness of 0.25 mm. The melting temperature of the first hot melt adhesive layer 2 is 95 °C.

[0038] 3. Lay the foaming layer Lay a polyurethane foaming layer 3 with a foaming ratio of 6 times and a thickness of 2.5 mm on the upper part of the first hot melt adhesive layer 2.

[0039] 4. Coat the second hot melt adhesive layer Coat the second hot melt adhesive layer 4 on the upper surface of the foaming layer 3, with a coating thickness of 0.25 mm. The melting temperature of the second hot melt adhesive layer 4 is 105 °C.

[0040] 5. Lay the soft fabric to form a blank Select a nylon fabric with a gram weight of 250 g / m² as the soft fabric 5 and lay it on the upper part of the second hot melt adhesive layer 4 to form a blank.

[0041] 6. Hot pressing and forming The depth of the die 61 for the trademark pattern at the bottom of the hot pressing upper die 6 is 0.4 mm, the pattern accuracy is ±0.05 mm. The die 61 for the trademark pattern and the hot pressing lower die 7 hot press the blank at a temperature of 150 °C and a pressure of 0.4 MPa. The hot pressing time is 25 s. After natural cooling, the finished product 8 with trademark characters is formed.

[0042] 7. Bond the soft fabric On the side of the finished product 8 with trademark characters, use water-based polyurethane adhesive to bond the soft fabric 5. The adhesive coating amount is 25 g / m², and it is cured for 30 h at 28 °C to obtain a soft fabric with a shaped trademark.

[0043] In summary, in terms of material selection and parameter setting, the flexible combination of hot melt adhesive layers with different thicknesses and melting temperatures, polyurethane foam layers with different foaming ratios and thicknesses, and soft fabrics with different gram weights (cotton, polyester, nylon) can all successfully produce soft fabric shaped trademarks under the condition of reasonably adjusting the hot pressing temperature, pressure, and time. This shows that this process has broad material adaptability and parameter adjustability, and can flexibly select appropriate materials and process parameters according to actual production needs and cost budgets; In terms of product quality, the trademarks obtained all have the characteristics of being soft, comfortable, and highly durable, effectively overcoming the defects of traditional trademarks being hard and easy to break. This benefits from precise process control and reasonable material combination, enabling a firm bond between the trademark pattern and the soft fabric, improving the quality and service life of the trademark; In terms of production efficiency, compared with the traditional process, this process has simplified procedures and shortened production cycles, and can quickly respond to market demands. At the same time, due to the reduction in the use of expensive raw materials such as silicone, the raw material procurement cost and labor cost are reduced, improving the economic benefits of the enterprise; In addition, this process uses environmentally friendly materials, reduces the use of chemical substances, meets environmental protection requirements, and helps to promote the sustainable development of the clothing industry. In summary, this soft fabric shaped trademark manufacturing process has significant advantages and broad application prospects.

[0044] Experimental part I. Experimental purpose Through comparative experiments, verify the advantages of this soft fabric shaped trademark manufacturing process in terms of product performance (softness, durability), production efficiency, cost control, and environmental protection.

[0045] II. Experimental materials and equipment 1. Materials Polyester positioning film (thickness 0.1 mm) The first hot melt adhesive layer material (melting temperature 90 °C) Polyurethane foam layer (foaming ratio 5 times, thickness 2 mm) The second hot melt adhesive layer material (melting temperature 100 °C) Soft fabric (cotton 200 g / m²) Water-based polyurethane adhesive Silicone material used in the traditional process Common traditional clothing trademark products on the existing market (as a control group) 2. Equipment Hot pressing equipment Softness tester Tensile strength tester Production timer Volatile organic compounds (VOCs) detector III. Experimental procedures 1. Sample preparation Make 10 soft fabric shaped trademark samples (experimental group) according to this process.

[0046] Select 10 traditional clothing trademark products commonly seen in the existing market as the control group.

[0047] 2. Performance testing Softness test: Use a softness tester to test the softness of the two groups of samples and record the data.

[0048] Durability test: Use a tensile strength tester to test the tensile strength of the two groups of samples and record the maximum tensile force at break; at the same time, sew the two groups of samples on the same clothing and let volunteers wear and wash them daily, and record the breakage and fault conditions of the samples after 1 month.

[0049] 3. Production efficiency testing Record the time required to make the samples in the experimental group and compare it with the average production time of the samples in the control group.

[0050] 4. Cost control testing Calculate the raw material cost and labor cost required to make the samples in the experimental group.

[0051] Estimate the raw material cost and labor cost of the samples in the control group (based on the market average price).

[0052] 5. Environmental protection assessment Use a VOCs detector to detect the VOCs content generated by the two groups of samples during the production process.

[0053] IV. Experimental results

[0054] V. Experimental conclusions By comparing the experimental data, it can be clearly seen that the production process of this soft fabric shaped trademark shows significant advantages in terms of product performance, production efficiency, cost control, and environmental protection: 1. Product performance: The trademarks made by this process are softer, have stronger tensile strength, and better durability.

[0055] 2. Production efficiency: The production efficiency of this process is 100% higher than that of the traditional process, and it can respond to market demands faster.

[0056] 3. Cost control: The total cost of this process is 38.5% lower than that of the traditional process, with better economic benefits.

[0057] 4. Environmental protection: The VOCs content generated during the production process of this process is 66.7% lower than that of the traditional process, which is more in line with environmental protection requirements.

[0058] In summary, this process for making soft fabric shaped trademarks has broad application prospects and market value.

Claims

1. A process for producing a soft cloth shaped trademark, characterized in that: The steps include: S1, laying the positioning film (1) in the hot pressing area of ​​the hot pressing lower mold (7); S2, applying a first hot melt adhesive layer (2) onto the upper surface of the positioning film (1); S3, laying a foaming layer (3) on the upper part of the first hot melt adhesive layer (2); S4, coating a second hot melt adhesive layer (4) on the upper surface of the foaming layer (3); S5, laying a soft cloth (5) on the upper part of the second hot melt adhesive layer (4) to form a blank; S6, a trademark pattern concave mold (61) is provided at the bottom of the hot pressing upper mold (6), and the trademark pattern concave mold (61) and the hot pressing lower mold (7) are hot pressed together on the blank, and after natural cooling, a finished product (8) with trademark characters is formed; S7. Glue the soft cloth (5) onto the side of the finished product (8) having the trademark characters, thereby obtaining a soft cloth shaped trademark.

2. The manufacturing process of a soft cloth shaped trademark according to claim 1, characterized in that: The positioning film (1) is a polyester film with a thickness of [0.05, 0.15] mm.

3. The manufacturing process of a soft cloth shaped trademark according to claim 1, characterized in that: The coating thickness of the first hot melt adhesive layer (2) is [0.1, 0.3] mm, and the melting temperature of the first hot melt adhesive layer (2) is [80, 100]°C.

4. The manufacturing process of a soft cloth shaped trademark according to claim 1, characterized in that: The foaming layer (3) is a polyurethane foaming layer, the foaming ratio of which is [3, 8] times and the thickness of which is [1, 3] mm.

5. The manufacturing process of a soft cloth shaped trademark according to claim 1, characterized in that: The coating thickness of the second hot melt adhesive layer (4) is [0.1, 0.3] mm, and the melting temperature of the second hot melt adhesive layer (4) is [90, 110] °C.

6. The manufacturing process of a soft cloth shaped trademark according to claim 1, characterized in that: The soft fabric (5) is one of pure cotton fabric, polyester fabric or nylon fabric, and has a gram weight of [100, 300] g / m².

7. The process for making a soft cloth shaped trademark according to claim 1, characterized in that: The depth of the trademark pattern concave mold (61) is [0.2, 0.5] mm, and the accuracy of the pattern is ±0.05 mm.

8. The process for making a soft cloth shaped trademark according to claim 1, characterized in that: In step S7, the adhesive used for bonding the soft fabric (5) is a water-based polyurethane adhesive, the coating amount of which is [10, 30] g / m², and after bonding, it is cured for [24, 48] h in an environment of [20, 30] °C.

9. The process for making a soft cloth shaped trademark according to claim 1, characterized in that: In step S6, the trademark pattern concave mold (61) and the hot pressing lower mold (7) are hot pressed together on the blank at a temperature of [120, 160]°C, the hot pressing pressure is [0.2, 0.5] MPa, and the hot pressing time is [10, 30] s.

10. The manufacturing process of a soft cloth shaped trademark according to claim 1, characterized in that: Prior to step S1, the positioning film (1) is also pre-treated. The pre-treatment includes placing the positioning film (1) in an environment with a temperature of [40, 60]°C and a humidity of [30, 50]% for [2, 4] hours to remove static electricity and impurities on the surface of the positioning film (1).

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