3D (three-dimensional) organic silica gel fabric and preparation method thereof

Abstract

The invention relates to the technical field of silica gel fabrics, and particularly discloses a 3D (three-dimensional) organic silica gel fabric and a preparation method thereof. The 3D organic silica gel fabric comprises a warp-knitted polyester fabric and a silica gel layer printed on the surface of the warp-knitted polyester fabric, the warp-knitted polyester fabric is formed by weaving mesh wires with the fineness of 75D-100D, and the covering area of the silica gel layer on the surface of the warp-knitted polyester fabric is 45%-55% of the surface area of the warp-knitted polyester fabric. The silica gel layer is composed of a bottom layer, a functional layer and a surface layer which are sequentially printed, the bottom layer is in direct contact with the veil, and the thickness of the silica gel layer is 1 + / -0.1 mm. The product provided by the invention can be used as a storage material in a vehicle mobile phone wireless charging area, has the advantages of good air permeability, fast heat dissipation and strong anti-skid capability, reduces the possibility of potential safety hazards caused by overheating of a mobile phone during charging, and greatly improves the user experience of vehicle-mounted wireless charging.

Description

Technical Field

[0001] The present application relates to the technical field of silicone fabrics, and in particular to a 3D organic silicone fabric and a preparation method thereof. Background Art

[0002] The storage materials used in the existing wireless charging area of ​​​​car mobile phones are mainly plastic parts, leather and suede. These materials are not resistant to dirt and are easy to scratch. Another big disadvantage is that the heat dissipation is poor and not breathable enough, which will affect the heat dissipation effect of the mobile phone when charging, causing the temperature of the mobile phone body to be too high. Especially in summer, the charging time of the mobile phone is not long, but the body has become seriously hot, and the ventilation of the charging slot is minimal, resulting in the temperature of the entire charging area being much higher than the ambient temperature. In addition, the anti-slip property of the existing storage materials is also very poor. When the car is driving, if it encounters sudden braking and other situations, the mobile phone will be displaced. In order to solve this problem, some car companies have also put silicone pads on the wireless charging version, but ordinary silicone pads can only solve the anti-slip problem, and cannot solve the problems of ventilation and heat dissipation.

[0003] Especially for mobile phones, the heat dissipation problem during wireless charging is a very critical "fatal" problem, because the principle of wireless charging technology is mainly based on the principle of electromagnetic induction. When current flows through the transmitting coil, a magnetic field will be generated, and the receiving coil will generate current by inducing this magnetic field, thereby realizing the wireless transmission of electric energy. In a closed circuit, if the magnetic flux changes, the closed circuit will generate current. Simply put, wireless charging uses a changing magnetic field to change the magnetic flux in the mobile phone charging coil behind the mobile phone to power the mobile phone. At the same time, a new problem arises, that is, all conductors will generate current in a changing magnetic field, such as keys, tin foil, and NFC cards, but they cannot store this energy in the battery through the wireless charging coil like mobile phones, so eddy currents are formed in them. Therefore, the temperature of these metals on the wireless charging plate will become higher and higher. If there are objects with low ignition points next to them, they will ignite the objects, resulting in very serious consequences. This is a huge safety hazard. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a 3D organic silicone fabric and a preparation method thereof.

[0005] In the first aspect, the present application provides a 3D organic silicone fabric, comprising a warp knitted polyester fabric and a silicone layer printed on the surface of the warp knitted polyester fabric, wherein the warp knitted polyester fabric is woven from mesh with a fineness of 75D-100D, and the coverage area of ​​the silicone layer on the surface of the warp knitted polyester fabric is 45-55% of the surface area of ​​the warp knitted polyester fabric, and the silicone layer is composed of a base layer, a functional layer and a surface layer printed in sequence, the base layer is in direct contact with the veil, and the thickness of the silicone layer is 1±0.1mm.

[0006] By adopting the above technical scheme, the present application first obtains a warp knitted polyester fabric composed of a veil and a bottom yarn by weaving a mesh of a certain fineness, which has a certain tensile strength and aging resistance, and then prints a layer of silicone on the surface of the warp knitted polyester fabric. The silicone has the characteristics of soft touch, high and low temperature resistance, non-toxic and tasteless, and good stability. It is printed on the surface of the warp knitted polyester fabric with high strength, good elasticity and not easy to deform, and its tensile resistance and processability can be greatly improved. In addition, the present application controls the coverage area of ​​the silicone layer on the surface of the warp knitted polyester fabric to be 45-55% of the surface area of ​​the warp knitted polyester fabric. On this basis, the technicians in this field can design silicone layer patterns of different shapes according to the actual situation, and control the thickness of the silicone layer to be 1±0.1mm. In addition, the coverage rate of the silicone layer is 45-55%. Finally, an air channel can be formed between the silicone layer and the warp knitted polyester fabric, which has a good ventilation effect, and different ventilation effects can be achieved by adjusting the coverage rate. The silicone layer of the present application is composed of a base layer, a functional layer and a surface layer which are printed in sequence. The base layer is in direct contact with the veil, which can improve the adhesion strength between the silicone layer as a whole and the warp-knitted polyester fabric. The functional layer can print silicone layers of different textures and colors by adjusting its own composition. At the same time, the functional layer is the direct reason why the silicone layer can have a certain thickness. The thickness of the functional layer directly affects the overall thickness of the silicone layer, and the surface layer is used to protect the functional layer and seal the entire silicone layer. The present application strictly controls the thickness of the silicone layer. If the thickness is not enough, it will not have a good ventilation effect. If the thickness is too large, it may affect the charging of the mobile phone.

[0007] In general, the present application prints a layer of silicone on the surface of the warp-knitted polyester fabric, making full use of the low magnetic permeability, excellent temperature resistance (able to maintain stable performance in the temperature range of -40°C to 230°C), certain adhesion and the advantages of the micro-concave-convex structure of silicone, while controlling the thickness and coverage of the silicone layer, and finally obtaining a 3D organic silicone fabric with heat dissipation, air permeability and anti-slip ability, which effectively improves the problem of heat dissipation difficulties of wireless charging, brings stronger guarantees to the further popularization of in-vehicle wireless charging, and further optimizes the user experience of wireless charging users. When in use, the product of the present application is placed in the position of wireless charging with the silicone layer facing upward, and then the mobile phone is placed on the surface of this product, which can dissipate a large amount of heat generated by the mobile phone during charging without affecting the charging effect of the mobile phone. At the same time, the silicone part of the product that is in direct contact with the mobile phone, the micro-concave-convex structure on the surface is deformed to form a tiny "suction cup" on the surface of the mobile phone, thereby increasing the contact area between the silicone layer and the mobile phone, and increasing the friction between the two, which plays an anti-slip protection role for the mobile phone being charged while the car is driving. Preferably, the coverage area of ​​the silica gel layer on the surface of the warp knitted polyester fabric is 50% of the surface area of ​​the warp knitted polyester fabric.

[0008] By adopting the above technical solution, the present application sets the coverage area of ​​the silicone layer on the surface of the warp-knitted polyester fabric to 50%, which can effectively balance the air permeability and anti-slip properties, ensure good contact between the silicone layer and the mobile phone, increase friction, and prevent the mobile phone from being displaced due to vibration or sudden braking during driving, and ensure sufficient air circulation space to promote rapid heat dissipation and avoid overheating of the mobile phone during charging. This not only improves the safety and reliability of wireless charging, but also enhances the user experience.

[0009] Preferably, the silica gel layer is composed of a plurality of silica gel strips of equal width and equal spacing arranged in parallel.

[0010] By adopting the above technical solution, the 3D organic silicone fabric not only has excellent anti-slip performance, but also can effectively reduce the heat accumulation of mobile phones during wireless charging. Specifically, the design of silicone strips with equal width and equal spacing arranged in parallel forms a number of fine air circulation channels between the silicone layer and the warp-knitted polyester fabric, which significantly improves the air permeability of the fabric and helps to quickly dissipate the heat generated by the mobile phone. At the same time, this structural design also enhances the contact stability between the silicone layer and the surface of the mobile phone, and can greatly reduce the possibility of displacement of the mobile phone in the horizontal plane even in the event of bumps or sudden braking during vehicle driving. In the specific implementation of the present application, the width and spacing of the silicone strips are 2mm, but this does not limit the scope of protection of the present application. In actual use, technicians in this field can make routine adjustments according to actual conditions.

[0011] In the second aspect, the present application provides a method for preparing a 3D organic silicone fabric, comprising the following steps: S1, weaving warp knitted polyester fabric: using four groups of combs GB1, GB2, GB3 and GB4 for weaving, then washing at a temperature of 35-70°C, heating and shaping, to obtain a warp knitted polyester fabric; S2, printing a silicone layer: designing a pattern according to the coverage area of ​​the silicone layer, and then using a sealing glue to screen print on the surface of the veil, and curing at a temperature of 145-155°C for 30s after printing, and repeating the screen printing. The process is repeated for 3 times to obtain a base layer, and then the functional glue is screen-printed on the surface of the base layer. After printing, it is cured at a temperature of 145-155°C for 30 seconds. The screen printing and curing operations are repeated for 4 times to obtain a functional layer. Finally, the sealing glue is screen-printed on the surface of the functional layer. After printing, it is cured at a temperature of 145-155°C for 30 seconds. The screen printing and curing operations are repeated for 2 times to obtain a surface layer, ensuring that the thickness of the silicone layer is 1±0.1mm, and finally a 3D organic silicone fabric is obtained.

[0012] By adopting the above technical scheme, the present application first obtains a high-strength, aging-resistant warp-knitted polyester fabric by weaving a mesh of a certain fineness to ensure the durability and stability of the product. The washing and shaping in step S1 can make the fabric surface have higher adsorption. Then the silicone layer is divided into a base layer, a functional layer and a surface layer. Each printing must be cured at high temperature to ensure complete curing. The base layer improves the adhesion strength between the silicone layer and the warp-knitted polyester fabric. The functional layer achieves different textures and colors by adjusting the composition, and also determines the overall thickness of the silicone layer. The surface layer plays a protective role, strictly controls the coverage area and thickness of the silicone layer, so that an air channel is formed between the silicone layer and the warp-knitted polyester fabric, which has a good air permeability effect. The screen printing of the present application memorizes the position of the screen plate, receives the PLC signal, and can take pictures of the current object to be printed during repeated printing to identify the position, and calculates the deviation between the object to be printed and the screen plate, and controls the movement and alignment of the UVW platform, so as to achieve high-precision alignment of the object to be printed, saving time and effort.

[0013] Finally, the 3D organic silicone fabric obtained by the preparation method of the present application not only has excellent heat dissipation, air permeability and anti-slip properties, but also greatly improves the user experience of in-vehicle wireless charging.

[0014] Preferably, in step S2, the sealing glue comprises transparent silica gel and curing agent in a weight ratio of 10:1.

[0015] By adopting the above technical solution, the sealing glue of the present application includes transparent silicone and curing agent in a weight ratio of 10:1. The transparent silicone has high fastness after curing, which can significantly improve the bonding strength between the silicone layer and the warp-knitted polyester fabric, ensure that the silicone layer can still maintain stable physical properties under high temperature environment, prevent peeling or falling off caused by temperature changes, thereby extending the service life of the product. At the same time, the transparent silicone has good light transmittance and aesthetics, and will not affect the color performance of the functional layer of the silicone layer, so that the final product has both practical functions and good visual effects.

[0016] Preferably, in step S2, the functional glue comprises silicone gel, silicone color paste, color glue and curing agent in a weight ratio of 10:1:10:1.

[0017] By adopting the above technical solution, the composition and ratio of the functional glue of the present application can ensure that the silicone layer has good color performance and mechanical properties. Specifically, silicone as a base material provides excellent temperature resistance and flexibility; the addition of silicone color paste and color glue allows the silicone layer to present a rich color selection to meet the personalized needs of different users. In addition, this specific ratio of functional glue makes the silicone layer have better adhesion and durability, and can maintain stable physical and chemical properties during long-term use, thereby effectively improving the overall quality of the 3D organic silicone fabric.

[0018] Preferably, in step S1, the fineness of the mesh wire used in the two groups of combs GB1 and GB2 is 100D, and the fineness of the mesh wire used in the two groups of combs GB3 and GB4 is 75D.

[0019] By adopting the above technical solution, the base yarn and the surface yarn of the 3D organic silicone fabric are woven from mesh wires with a fineness of 75D and 100D respectively, so that the base yarn has higher tensile strength and aging resistance, while the surface yarn has better elasticity and is not easy to deform. This combination not only improves the mechanical properties of the overall fabric, but also enhances its durability and service life. Specifically, the higher fineness of the base yarn ensures that the basic structure of the fabric is stable and can withstand greater tension without breaking easily, while the larger fineness of the surface yarn improves the flexibility and comfortable feel of the fabric surface, making it more suitable for direct contact with electronic devices such as mobile phones. At the same time, the use of mesh wires of different finenesses can also better adapt to various complex automotive interior environments, ensuring that good physical properties can be maintained during long-term use.

[0020] Preferably, in step S1, the inlay yarn numbers during weaving are: GB1: 1-0 / 1-1 / / ; GB2: 0-0 / 1-0 / / ; GB3: 1-0 / 3-4 / / ; GB4: 1-0 / 1-2 / / .

[0021] By adopting the above technical solution, the specific yarn number used in the present application during weaving makes the warp knitted polyester fabric have a higher density and better uniformity, thereby improving the stability and mechanical properties of the overall structure. This high-density fabric not only enhances the bonding force between the fabric and the silicone layer, but also effectively prevents the penetration of external impurities, thereby extending the service life of the product. At the same time, this weaving method can also ensure the dimensional stability of the warp knitted polyester fabric at high temperatures, making the final 3D organic silicone fabric more durable and reliable.

[0022] In summary, this application has the following beneficial technical effects: 1. The present application prints a silicone layer on the surface of the warp-knitted polyester fabric and controls the coverage area of ​​the silicone layer to be 45-60%, so that an air channel is formed between the silicone layer and the warp-knitted polyester fabric, thereby achieving a good air permeability effect and solving the problem of poor air permeability of traditional materials; 2. The silicone layer of the present application has the dual advantages of low magnetic permeability and excellent temperature resistance, which effectively reduces the heat accumulation during wireless charging, improves the problem of excessive temperature caused by poor heat dissipation when charging the mobile phone, and improves the safety and reliability of wireless charging; 3. The tiny concavo-convex structure on the surface of the silicone layer of the present application increases the contact area with the mobile phone, improves the friction, effectively prevents the displacement of the mobile phone during the driving of the car, and enhances the anti-slip effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the texture diagram of the warp-knitted polyester fabric of Example 1 of the present application. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with embodiments and comparative examples.

[0025] Example 1 A method for preparing a 3D organic silicone fabric comprises the following steps: S1. Weaving warp knitted polyester fabric: four groups of combs GB1, GB2, GB3 and GB4 are used for weaving. The fineness of the mesh wire used by the two groups of combs GB1 and GB2 is 100D, and the fineness of the mesh wire used by the two groups of combs GB3 and GB4 is 75D. The padding yarn numbers are: GB1: 1-0 / 1-1 / / , GB2: 0-0 / 1-0 / / , GB3: 1-0 / 3-4 / / , GB4: 1-0 / 1- 2 / / , then add water containing 4g / L degreasing agent for washing, during washing, the temperature of the first tank is 45-55℃, the temperature of the second tank is 60-70℃, the temperature of the third tank is 60-70℃, the temperature of the fourth tank is 60-70℃, the temperature of the fifth tank is 40-50℃, and the temperature of the sixth tank is 35-45℃, and then shape it at a temperature of 160℃ to obtain a warp knitted polyester fabric with a width of 165cm. The fabric feeding speed during washing and shaping is 25m / min; S2. Printing silicone layer: Design the pattern based on the coverage area of ​​the silicone layer on the surface of the warp knitted polyester fabric being 55% of the surface area of ​​the warp knitted polyester fabric. Confirm that the pattern is a number of parallel strips with a width of 2.2 mm and a spacing of 1.8 mm between the strips. Put the warp knitted polyester fabric into a screen printing machine, and then use a sealing layer glue (a mixture of transparent silicone and curing agent with a weight ratio of 10:1) to screen print on the surface of the veil. After printing, cure at a temperature of 145°C for 30 seconds. Repeat the screen printing and curing operations for a total of 3 times to obtain a base layer. Then Use functional glue (a mixture of silicone, silicone color paste, color glue and curing agent with a weight ratio of 10:1:10:1) to continue screen printing on the surface of the base layer. After printing, it is cured at a temperature of 155°C for 30 seconds. The screen printing and curing operations are repeated 4 times to obtain a functional layer. Finally, the sealing glue is screen printed on the surface of the functional layer. After printing, it is cured at a temperature of 145°C for 30 seconds. The screen printing and curing operations are repeated 2 times to obtain the surface layer, ensuring that the thickness of the silicone layer is 1±0.1mm, and finally a 3D three-dimensional organic silicone fabric is obtained.

[0026] Example 2 A method for preparing a 3D organic silicone fabric comprises the following steps: S1. Weaving warp knitted polyester fabric: four groups of combs GB1, GB2, GB3 and GB4 are used for weaving. The fineness of the mesh wire used by the two groups of combs GB1 and GB2 is 100D, and the fineness of the mesh wire used by the two groups of combs GB3 and GB4 is 75D. The padding yarn numbers are: GB1: 1-0 / 1-1 / / , GB2: 0-0 / 1-0 / / , GB3: 1-0 / 3-4 / / , GB4: 1-0 / 1- 2 / / , then add water containing 4g / L degreasing agent for washing, during washing, the temperature of the first tank is 45-55℃, the temperature of the second tank is 60-70℃, the temperature of the third tank is 60-70℃, the temperature of the fourth tank is 60-70℃, the temperature of the fifth tank is 40-50℃, and the temperature of the sixth tank is 35-45℃, and then shape it at a temperature of 160℃ to obtain a warp knitted polyester fabric with a width of 165cm. The fabric feeding speed during washing and shaping is 25m / min; S2. Printing silicone layer: Design the pattern based on the coverage area of ​​the silicone layer on the surface of the warp knitted polyester fabric being 45% of the surface area of ​​the warp knitted polyester fabric. Confirm that the pattern is a number of strips 1.8 mm wide and arranged in parallel, with a spacing of 2.2 mm between the strips. Put the warp knitted polyester fabric into a screen printing machine, and then use a sealing glue (a mixture of transparent silicone and curing agent with a weight ratio of 10:1) to screen print on the surface of the veil. After printing, cure at a temperature of 155°C for 30 seconds. Repeat the screen printing and curing operations for a total of 3 times to obtain a base layer. Then Use functional glue (a mixture of silicone, silicone color paste, color glue and curing agent with a weight ratio of 10:1:10:1) to continue screen printing on the surface of the base layer. After printing, it is cured at a temperature of 145°C for 30 seconds. The screen printing and curing operations are repeated 4 times to obtain a functional layer. Finally, the sealing glue is screen printed on the surface of the functional layer. After printing, it is cured at a temperature of 155°C for 30 seconds. The screen printing and curing operations are repeated 2 times to obtain the surface layer, ensuring that the thickness of the silicone layer is 1±0.1mm, and finally a 3D three-dimensional organic silicone fabric is obtained.

[0027] Example 3 A method for preparing a 3D organic silicone fabric comprises the following steps: S1. Weaving warp knitted polyester fabric: four groups of combs GB1, GB2, GB3 and GB4 are used for weaving. The fineness of the mesh wire used by the two groups of combs GB1 and GB2 is 100D, and the fineness of the mesh wire used by the two groups of combs GB3 and GB4 is 75D. The padding yarn numbers are: GB1: 1-0 / 1-1 / / , GB2: 0-0 / 1-0 / / , GB3: 1-0 / 3-4 / / , GB4: 1-0 / 1- 2 / / , then add water containing 4g / L degreasing agent for washing, during washing, the temperature of the first tank is 45-55℃, the temperature of the second tank is 60-70℃, the temperature of the third tank is 60-70℃, the temperature of the fourth tank is 60-70℃, the temperature of the fifth tank is 40-50℃, and the temperature of the sixth tank is 35-45℃, and then shape it at a temperature of 160℃ to obtain a warp knitted polyester fabric with a width of 165cm. The fabric feeding speed during washing and shaping is 25m / min; S2. Printing silicone layer: Design the pattern based on the coverage area of ​​the silicone layer on the surface of the warp knitted polyester fabric being 50% of the surface area of ​​the warp knitted polyester fabric. Confirm that the pattern is a number of strips 2 mm wide and arranged in parallel, with a spacing of 2 mm between the strips. Put the warp knitted polyester fabric into a screen printing machine, and then use a sealing glue (a mixture of transparent silicone and curing agent with a weight ratio of 10:1) to screen print on the surface of the veil. After printing, cure it at a temperature of 150°C for 30 seconds. Repeat the screen printing and curing operations for a total of 3 times to obtain a base layer, and then use Functional glue (a mixture of silicone, silicone color paste, color glue and curing agent in a weight ratio of 10:1:10:1) is screen-printed on the surface of the base layer, and cured at 150°C for 30 seconds after printing. The screen printing and curing operations are repeated 4 times to obtain a functional layer. Finally, the sealing glue is screen-printed on the surface of the functional layer, and cured at 150°C for 30 seconds after printing. The screen printing and curing operations are repeated 2 times to obtain a surface layer, ensuring that the thickness of the silicone layer is 1±0.1 mm, and finally a 3D three-dimensional organic silicone fabric is obtained.

[0028] Comparative Example 1 The difference from Example 3 is that in step S2, the pattern is designed based on the coverage area of ​​the silicone layer on the surface of the warp-knitted polyester fabric being 60% of the surface area of ​​the warp-knitted polyester fabric, and the pattern is confirmed to be a plurality of parallel strips with a width of 3 mm and a spacing of 2 mm between the strips. The rest is the same as Example 3.

[0029] Comparative Example 2 The difference from Example 3 is that in step S2, the thickness of the silicone layer is 0.8±0.1 mm, and the rest is the same as Example 3.

[0030] Comparative Example 3 The difference from Example 3 is that in step S2, the pattern is designed based on the coverage area of ​​the silicone layer on the surface of the warp knitted polyester fabric being 62.5% of the surface area of ​​the warp knitted polyester fabric, and the pattern is confirmed to be a plurality of parallel strips with a width of 2.5 mm and a spacing of 1.5 mm between the strips. The thickness of the silicone layer is 0.8±0.1 mm, and the rest is the same as Example 3.

[0031] Performance Testing Referring to the record in GB / T 5453-1997 Determination of Air Permeability of Textile Fabrics, the air permeability of the silicone fabric, leather and suede obtained in the examples and comparative examples was tested using an air permeability tester JC-005, with a test area of ​​20 cm 2 , pressure drop 200Pa, and record the test results in Table 1.

[0032] Table 1 Performance test table Group <![CDATA[Air permeability (L / dm 2 / min)]]> leather 2.29 Suede 62.9 Example 1 196 Example 2 224 Example 3 212 Comparative Example 1 174 Comparative Example 2 168 Comparative Example 3 192 Data Analysis: As can be seen from Table 1, the air permeability of the 3D organic silicone fabrics obtained in Examples 1-3 of the present application can reach 196-196-224 L / dm 2 / min, compared with the existing leather and suede materials, the air permeability is increased by at least 210%, proving that the present application fully utilizes the advantages of low magnetic permeability, excellent temperature resistance (able to maintain stable performance in the temperature range of -40°C to 230°C), certain adhesion and micro-concave and convex structure of silicone by printing a layer of silicone on the surface of the warp-knitted polyester fabric, and at the same time controls the thickness and coverage of the silicone layer, and finally obtains a 3D organic silicone fabric with heat dissipation, air permeability and anti-slip ability, which effectively improves the problem of heat dissipation difficulties of wireless charging, brings stronger guarantee to the further popularization of in-vehicle wireless charging, and further optimizes the user experience of wireless charging users; The air permeability of the 3D organic silicone fabric obtained in Comparative Examples 1-2 is much lower than that in Example 3, which proves that the present application ensures the air permeability of the air channel by strictly controlling the thickness of the silicone layer and the coverage area of ​​the silicone layer on the surface of the warp-knitted polyester fabric, effectively reducing the heat accumulation during wireless charging, improving the problem of excessive temperature caused by poor heat dissipation during mobile phone charging, and improving the safety and reliability of wireless charging; The thickness of the silicone layer of the 3D organic silicone fabric obtained in Comparative Example 3 and the coverage area of ​​the silicone layer on the surface of the warp knitted polyester fabric are different from those in Example 3, but the total volume of the air passages finally obtained in Comparative Example 3 and Example 3 is the same. According to the data in Table 1, even when the volume of the air passages is the same, the air permeability of Comparative Example 3 is still 30 L / dm lower than that of Example 3. 2 / min, which proves that the thickness of the silicone layer of the 3D organic silicone fabric of the present application and the coverage area of ​​the silicone layer on the surface of the warp-knitted polyester fabric need to be strictly controlled at the same time, and must be designed within the numerical range specified in the present application to achieve good heat dissipation and breathability effects.

[0033] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A 3D organic silicone fabric, characterized in that: It includes a warp-knitted polyester fabric and a silicone layer printed on the surface of the warp-knitted polyester fabric. The warp-knitted polyester fabric is woven from mesh wire with a fineness of 75D-100D. The coverage area of ​​the silicone layer on the surface of the warp-knitted polyester fabric is 45-55% of the surface area of ​​the warp-knitted polyester fabric. The silicone layer is composed of a base layer, a functional layer and a surface layer printed in sequence. The base layer is in direct contact with the veil. The thickness of the silicone layer is 1±0.1mm.

2. A 3D organic silicone fabric according to claim 1, characterized in that: The coverage area of ​​the silica gel layer on the surface of the warp-knitted polyester fabric is 50% of the surface area of ​​the warp-knitted polyester fabric.

3. The 3D organic silicone fabric according to claim 2, characterized in that: The silica gel layer is composed of a plurality of silica gel strips which are arranged in parallel with equal width and equal spacing.

4. A method for preparing the unique 3D organic silicone fabric according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1. Weaving warp knitted polyester fabric: using four sets of comb bars GB1, GB2, GB3 and GB4 for weaving, then washing at a temperature of 35-70°C, heating and setting, to obtain a warp knitted polyester fabric; S2. Printing silicone layer: design a pattern according to the coverage area of ​​the silicone layer, then use a sealing glue to screen print on the surface of the veil, and cure it at a temperature of 145-155°C for 30 seconds after printing. Repeat the screen printing and curing operations for 3 times to obtain a base layer, and then continue to screen print on the surface of the base layer with a functional glue. After printing, cure it at a temperature of 145-155°C for 30 seconds. Repeat the screen printing and curing operations for 4 times to obtain a functional layer. Finally, screen print on the surface of the functional layer with a sealing glue. After printing, cure it at a temperature of 145-155°C for 30 seconds. Repeat the screen printing and curing operations for 2 times to obtain a surface layer, ensure that the thickness of the silicone layer is 1±0.1mm, and finally obtain a 3D three-dimensional organic silicone fabric.

5. The method for preparing a 3D organic silicone fabric according to claim 4, characterized in that: In the step S2, the sealing glue includes transparent silica gel and curing agent in a weight ratio of 10:

1.

6. The method for preparing a 3D organic silicone fabric according to claim 4, characterized in that: In the step S2, the functional glue includes silicone, silicone color paste, color glue and curing agent in a weight ratio of 10:1:10:

1.

7. The method for preparing a 3D organic silicone fabric according to claim 4, characterized in that: In the step S1, the fineness of the mesh wire used in the two groups of combs GB1 and GB2 is 100D, and the fineness of the mesh wire used in the two groups of combs GB3 and GB4 is 75D.

8. The method for preparing a 3D organic silicone fabric according to claim 4, characterized in that: In the step S1, the inlay yarn numbers during weaving are: GB1: 1-0 / 1-1 / / ; GB2: 0-0 / 1-0 / / ; GB3: 1-0 / 3-4 / / ; GB4: 1-0 / 1-2 / / .

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