A method of making a porous coated textile and a porous coated textile

Abstract

The application provides a porous coating textile preparation method and porous coating textile, and relates to the technical field of textiles. The porous coating textile preparation method comprises the following steps: coating a water-based bottom paste on a textile to form a bottom paste layer; laying water-absorbing resin particles on the bottom paste layer, and performing first drying to obtain an intermediate layer; coating a water-based surface paste on the intermediate layer, performing second drying to obtain a pre-composite layer; immersing the pre-composite layer in water to remove the expanded water-absorbing resin particles, and performing third drying to obtain the porous coating textile. The porous coating of the porous coating textile of the application forms a porous structure, and the outer surface of the coating is uneven but has no damage.

Description

Technical Field

[0001] This invention belongs to the field of textile technology and relates to a method for preparing porous coated textiles and porous coated textiles. Background Technology

[0002] In textiles, such as shoe materials, printing creates patterns that offer both aesthetic appeal and protection. Foaming technology can be used to create foamed prints. However, the pore diameter in foamed prints is relatively small, typically at the micrometer level, and the surface is smooth, lacking the uneven appearance of traditional prints.

[0003] Therefore, there is an urgent need to provide a foam printing method with a three-dimensional structure to offer textiles different decorative appearances and protective functions. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a method for preparing porous coated textiles and the porous coated textiles themselves.

[0005] The technical solution of the present invention is as follows:

[0006] A method for preparing a porous coated textile includes the following steps:

[0007] A water-based primer is applied to textiles to form a primer layer;

[0008] Water-absorbing resin particles are laid on the base slurry layer and dried for the first time to obtain the intermediate layer;

[0009] A water-based surface paste is coated onto the intermediate layer and dried a second time to obtain a pre-composite layer.

[0010] The pre-composite layer is immersed in water to remove the swollen water-absorbing resin particles, and then dried for a third time to obtain the porous coated textile.

[0011] Preferably, the method for applying the water-based primer is screen printing.

[0012] Preferably, the area on the textile coated with the water-based primer is a single-layer mesh structure or a single-layer fabric structure with mesh openings, wherein the mesh openings of the mesh structure and the single-layer fabric structure are 0.5-5mm in size.

[0013] More preferably, the size of the absorbent resin particles does not exceed the mesh size.

[0014] More preferably, the size of the absorbent resin particles does not exceed 1 / 2 of the mesh size.

[0015] Preferably, the method for coating the water-based surface paste is stencil printing.

[0016] More preferably, the height of the perforated screen is not less than the size of the absorbent resin particles.

[0017] Preferably, the pre-composite layer is immersed in water for 0.5-12 hours at a temperature of 5-40°C.

[0018] Preferably, the removal of the swollen absorbent resin particles is performed by removing them from the mesh of the textile.

[0019] A porous coated textile is prepared by the method for preparing porous coated textiles as described in any of the above embodiments.

[0020] The beneficial effects of this invention are:

[0021] (1) The present invention forms a composite coating on the surface of textiles by coating water-based base coat, water-absorbing resin particles and water-based top coat respectively. Utilizing the water-absorbing and high-swelling characteristics of the water-absorbing resin particles, after the water-absorbing resin particles absorb water and swell and are removed, the swelled sites form a porous structure, and the composite coating forms a porous coating with an uneven surface.

[0022] (2) In this invention, the absorbent resin particles can be removed from the outer surface of the composite coating or from the mesh of the textile. When removed from the mesh of the textile, the porous structure of the outer surface of the composite coating is not damaged. Attached Figure Description

[0023] Figure 1 This is a front view of the porous coated textile of Example 1.

[0024] Figure 2 This is a back view of the porous coated textile of Example 1.

[0025] Figure 3 This is a front view of the porous coated textile of Example 5.

[0026] Figure 4 This is a back view of the porous coated textile of Example 5. Detailed Implementation

[0027] The technical solution of the present invention will be further explained and described below through specific embodiments.

[0028] On one hand, the present invention provides a method for preparing porous coated textiles, comprising the following steps:

[0029] A water-based primer is applied to textiles to form a primer layer;

[0030] Water-absorbing resin particles are laid on the base layer and dried for the first time to obtain the intermediate layer.

[0031] A water-based surface paste is coated onto the intermediate layer and dried a second time to obtain a pre-composite layer.

[0032] The pre-composite layer is immersed in water to remove the swollen water-absorbing resin particles, and then dried for a third time to obtain the porous coated textile of the present invention.

[0033] This invention forms a composite coating on the surface of a textile by sequentially depositing a base layer, a layer of absorbent resin particles, and a top layer, thereby encapsulating the absorbent resin particles. After the absorbent resin particles absorb water, swell, and are removed, the resulting cavities within the composite coating constitute a porous structure. Due to the high expansion rate of the absorbent resin particles, the outer surface of the composite coating exhibits an uneven texture, achieving the objective of this invention—forming a porous coating with an uneven outer surface on textiles.

[0034] In a preferred embodiment of the present invention, the method of applying the water-based primer is screen printing, and the water-based primer does not dry and cure after application, or does not require heating. After applying the water-based primer, a layer of absorbent resin particles can be directly laid on it. In the present invention, the purpose of setting the water-based primer is mainly fourfold: (1) to serve as the bottom layer of absorbent resin particles, supporting the absorbent resin particles and preventing them from falling off the mesh of the textile; (2) to adsorb and fix the absorbent resin particles on the surface of the textile; (3) to make the top coat have a good bonding force with the textile and to form a composite coating with good adhesion on the surface of the textile, including the bottom layer, absorbent resin particles and the top coat; (4) the water-based primer is relatively thin, 5μm-100μm, and this thickness of the water-based primer can be achieved by screen printing, which is conducive to the expansion of absorbent resin particles detaching from the mesh through the primer layer.

[0035] In this invention, the source of the water-based primer is not particularly limited. It can be a water-based primer commonly used in textiles, which can be obtained directly from the market or formulated according to existing technology. Taking a water-based PU primer as an example, the composition of a water-based primer can be as follows: 70-85wt% water-based PU resin (concentration of 20-50wt%), 5-12wt% slow-drying agent (such as ethylene glycol monomethyl ether, propylene glycol, etc.), 0.3-0.7wt% defoamer, 0.1-0.5wt% leveling agent, 0.5-2.0wt% thickener, and 2-4wt% crosslinking agent (such as isocyanate crosslinking agent).

[0036] In a preferred embodiment of the present invention, the area of ​​the textile coated with the water-based primer is a single-layer mesh structure or a single-layer fabric structure with mesh openings. The mesh opening sizes of the mesh structure and the single-layer fabric structure are 0.5-5 mm, respectively. In this invention, the mesh opening size refers to the shortest part of the mesh diameter. For example, if the mesh opening is circular, the mesh opening size is the diameter of the mesh opening; if the mesh opening is square, the mesh opening size is the side length of the square; if the mesh opening is rectangular, the mesh opening size is the width of the rectangle. A single-layer mesh structure or a single-layer fabric structure with mesh openings facilitates the subsequent detachment and removal of the expanded absorbent resin particles from the mesh openings of the mesh or single-layer fabric after they have detached from the composite coating. If the area coated with the water-based primer is a multi-layer mesh structure or multi-layer fabric with two or more layers, there may be overlap between the mesh openings of adjacent layers, resulting in a lower actual mesh opening size, which is not conducive to the detachment and removal of the absorbent resin particles. If the mesh consists of two or more layers or multiple layers of fabric, but the mesh size is large enough (e.g., 1-5 mm) and the mesh openings are highly aligned (i.e., there is minimal overlap), it will have less impact on the detachment of the water-absorbing and swelling resin particles in this invention. However, the mesh size of the mesh and single-layer fabric cannot be too large; otherwise, when applying the water-based primer, the primer may leak from the mesh or clog the mesh, preventing the formation of the primer layer. Conversely, the mesh size of the mesh and single-layer fabric cannot be too small; otherwise, the swollen water-absorbing resin particles will be unable to detach and be removed. For example, the mesh size of the mesh and single-layer fabric can be any value from 0.5mm, 0.8mm, 1mm, 1.2mm, 1.3mm, 1.5mm, 1.8mm, 2mm, 2.3mm, 2.5mm, 2.8mm, 3mm, 3.2mm, 3.3mm, 3.5mm, 3.7mm, 4mm, 4.3mm, 4.5mm, 4.7mm, 4.8mm, 5mm, etc., but is not limited to those listed above.

[0037] On the other hand, considering the ease with which the expanded absorbent resin particles can be removed from the mesh, laying the absorbent resin particles on the bottom layer at the mesh openings of the mesh structure or the mesh openings of the single-layer fabric structure, i.e., the absorbent resin particles correspond to the mesh openings, is obviously more conducive to the removal of the absorbent resin particles. However, when the position of the absorbent resin particles and the mesh openings is not very consistent or there is a misalignment, the expanded absorbent resin particles can still be removed from the mesh openings due to the thinness of the bottom layer.

[0038] In a more preferred embodiment of the present invention, the size of the absorbent resin particles does not exceed the mesh size. In this invention, the size of the absorbent resin particles refers to the size of the smallest sieve opening through which the particles can pass in the most advantageous posture. If the size of the absorbent resin particles exceeds the mesh size, it is not conducive to the detachment and removal of the absorbent resin particles from the mesh. Further, the size of the absorbent resin particles does not exceed 1 / 2 of the mesh size, so as to facilitate the detachment and removal of the expanded absorbent resin particles from the mesh after they have detached from the composite coating. For example, the size of the absorbent resin particles can be any value among 1 / 40, 1 / 35, 1 / 30, 1 / 27, 1 / 25, 1 / 22, 1 / 20, 1 / 16, 1 / 15, 1 / 13, 1 / 10, 1 / 8, 1 / 6, 1 / 5, 1 / 4, 1 / 3, 1 / 2 of the mesh size, but is not limited to those listed above. For example, if the mesh size is 4mm, the size of the absorbent resin particles can be 3mm, 2mm, 1mm, 0.5mm, 0.2mm, 0.1mm, etc.; if the mesh size is 2mm, the size of the absorbent resin particles can be 2mm, 1mm, 0.5mm, 0.2mm, 0.1mm, etc.; if the mesh size is 1mm, the size of the absorbent resin particles can be 1mm, 0.5mm, 0.3mm, 0.2mm, 0.1mm, etc.

[0039] In this invention, the water-absorbing resin particles are high-molecular-weight resin particles with a certain degree of cross-linking, capable of absorbing water and swelling. The water absorption weight can reach several to hundreds of times the weight of the resin particles themselves. Examples include cross-linked polyacrylamide, cross-linked polyacrylate, cross-linked polyvinyl alcohol, or copolymers or modifiers of these polymers, such as starch-grafted modified polyacrylate. The water-absorbing resin particles can be obtained directly from the market, such as commercially available "Sea Babies" (a type of superabsorbent polymer).

[0040] In a preferred embodiment of the present invention, the method for coating the water-based surface paste is stencil printing. Because the thickness of the absorbent resin particles laid on the intermediate layer is relatively large, even though there should only be one layer of absorbent resin particles when laying the bottom layer (i.e., the absorbent resin particles do not overlap), the thickness of the water-based surface paste must be at least equal to the size of the absorbent resin particles. For example, if the size of the absorbent resin particles is 0.1 mm, the screen height can be 0.1 mm, 0.2 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, etc., so that the water-based surface paste can completely cover and encapsulate the absorbent resin particles. Therefore, the coating thickness of the water-based surface paste needs to be relatively thick. If screen printing is used, it would require several or even dozens of printing passes to achieve this, while stencil printing can achieve it in a single printing pass.

[0041] In this invention, the source of the water-based face paste is not particularly limited. It can be a water-based face paste commonly used in textiles, which can be obtained directly from the market or formulated according to existing technology. Taking water-based PU face paste as an example, the composition of a water-based face paste can be as follows: 70-80wt% water-based silicone-modified PU resin, 2-10wt% water, 0.3-0.6wt% defoamer, 0.5-2.0wt% thickener, 2.0-4.0wt% propylene glycol, and 4-8wt% water-based isocyanate crosslinking agent.

[0042] In a more preferred embodiment of the present invention, the height of the perforated screen is not less than the size of the absorbent resin particles. This height ensures that the batter can completely cover and encapsulate the absorbent resin particles. For example, the height of the perforated screen can be any value among 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, and 2 times the size of the absorbent resin particles, but is not limited to those listed above.

[0043] In a preferred embodiment of the present invention, the pre-composite layer is immersed in water for 0.5-12 hours at a temperature of 5-40°C, or more specifically, for 0.5-6 hours. By adjusting the immersion time and water temperature of the pre-composite layer, the expansion ratio of the absorbent resin particles can be adjusted, thereby adjusting the pore size of the porous structure. The higher the expansion ratio, the larger the pore size of the porous structure. Generally, the longer the immersion time and the higher the water temperature, the higher the expansion ratio of the absorbent resin particles. For example, the water temperature can be 5°C, and the immersion time can be 1h, 2h, 3h, 4h, 6h, etc.; the water temperature can be 20°C, and the immersion time can be 1h, 1.5h, 2h, 3h, etc.; the water temperature can be 35°C, and the immersion time can be 0.5h, 1h, 1.5h, 2h, etc.

[0044] In a preferred embodiment of the present invention, the swollen absorbent resin particles are removed from the mesh of the textile. Because the base layer is very thin, it is easily broken at the mesh openings, and the swollen absorbent resin particles detach from the broken openings and further detach from the mesh openings. Furthermore, the absorbent resin particles can actively break through the base layer when absorbing water and swelling, thus preventing damage or cracking of the outer surface of the porous coating, resulting in an intact outer surface of the formed porous coating.

[0045] In this invention, by setting the structure and mesh size of the textile covering composite layer, the expanded water-absorbing resin particles can be removed from the mesh of the textile, thereby achieving: (1) due to the presence of the base layer, the porous coating still maintains good adhesion to the textile; (2) the porous coating remains intact from the outer surface; and (3) the porous structure of part or all of the porous coating is connected to the mesh opening of the textile.

[0046] In this invention, there are no particular restrictions on the drying conditions for the first, second, and third drying processes. For example, the first drying can be done by baking at 50-70°C for 10-30 minutes; the second drying can be done by placing the product at room temperature for 1-12 hours (if placed at room temperature first, curing can proceed slowly, and moisture can slowly evaporate or be partially absorbed by the water-absorbing resin particles. The surface layer can still coat the water-absorbing resin particles during the drying and curing process, forming a surface coating layer), followed by baking at 50-70°C for 8-12 hours; the third drying can be done at 50-70°C for 24-60 hours.

[0047] On the other hand, the present invention provides a porous coated textile, which is prepared by the method for preparing porous coated textiles as described in any of the above embodiments.

[0048] The porous coated textiles of this invention can be applied to clothing, footwear, curtains, etc., and have functions such as cushioning, decoration, and protection.

[0049] 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.

[0050] In the following examples and comparative examples, the aqueous primer comprises: 85 wt% aqueous PU resin (concentration 35 wt%), 9 wt% slow-drying agent (ethylene glycol monomethyl ether), 0.5 wt% defoamer, 0.4 wt% leveling agent, 1.1 wt% aqueous associative polyurethane thickener, and 4 wt% aqueous isocyanate crosslinking agent; the aqueous topcoat comprises: 79.3 wt% aqueous silicone-modified PU resin (concentration 40 wt%), 10 wt% water, 0.5 wt% defoamer, 1.2 wt% aqueous associative polyurethane thickener, 3 wt% propylene glycol, and 6 wt% aqueous isocyanate crosslinking agent. Those skilled in the art will understand that the above-described aqueous primer and aqueous topcoat are merely examples and not intended to limit the invention. Those skilled in the art can directly obtain aqueous primers and / or aqueous topcoats from the market, or prepare them according to existing techniques.

[0051] Example 1

[0052] A single layer of mesh (2mm mesh size) was fixed on a printing plate. A water-based base paste was printed onto the mesh using a 300-mesh screen to a thickness of 30μm. A layer of absorbent resin granules (commercially available "Mars Baby" brand, 0.5mm in size) was then laid on top, with the granules corresponding to the mesh openings. Any granules not adhered to the base paste were removed. The mixture was then baked in a 60℃ oven for 20 minutes. A water-based top paste was then printed onto the resin granules using a stencil printing method with a 1.5mm high stencil. The top paste layer covered and enveloped the resin granules. The mixture was dried at 25℃ for 8 hours, then transferred to 60℃ for another 10 hours. After cooling to room temperature, it was left to stand for 24 hours to obtain a pre-composite layer. The pre-composite layer was immersed in water at 25°C for 2 hours. After removal, it was found that the water-absorbing resin particles had swelled, about 30% of the bottom slurry layer at the mesh openings was ruptured, and the outer surface of the coating was undamaged. The swollen water-absorbing resin particles were squeezed out from the mesh openings. Then the printed fabric was placed in an environment of 70°C for 40 hours to continue drying. After removal and cooling, porous coated mesh was obtained.

[0053] Appendix Figure 1 This is a front view of the porous coated mesh of this embodiment. It can be seen that the outer surface of the porous coating has obvious pore protrusions and is not damaged.

[0054] Appendix Figure 2 This is a back view of the porous coated mesh in this embodiment. It can be seen that the bottom layer at the mesh openings is damaged, and the water-absorbing resin particles fall off from these damaged areas.

[0055] Example 2

[0056] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the height of the perforated screen was adjusted from 1.5mm to 1mm. The remaining steps remain unchanged. The results are similar to those of Embodiment 1.

[0057] Example 3

[0058] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the absorbent resin particles were replaced with 1mm-sized marine beads. The remaining steps remain unchanged.

[0059] The results showed that the base layer at approximately 20% of the mesh openings was ruptured, while the outer surface of the coating remained undamaged, allowing the swollen water-absorbing resin particles to be squeezed out from the mesh openings.

[0060] Example 4

[0061] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the single-layer mesh is replaced with a double-layer mesh composed of two single-layer meshes, with a mesh size of 2mm, and the two meshes are aligned at the mesh openings, with minimal overlap between the mesh openings. The remaining steps remain unchanged.

[0062] The results showed that about 30% of the bottom layer at the mesh openings was crushed, while the outer surface of the coating was undamaged. The water-absorbing resin particles that had expanded after absorbing water could be squeezed out from the mesh openings.

[0063] Comparative Example 1

[0064] The difference between this comparative example and Example 1 is that instead of printing a water-based primer on the mesh, a layer of absorbent resin particles is directly laid on it. The remaining steps remain unchanged.

[0065] The results showed that (1) during the laying process, the absorbent resin particles would fall directly from the mesh, and it was not easy to lay only one layer of absorbent resin particles, as the absorbent resin particles tended to overlap; (2) the adhesion between the surface paste layer and the mesh was very low. After soaking in water for 2 hours, it was found that some of the surface paste layer had detached from the mesh.

[0066] Comparative Example 2

[0067] The difference between this comparative example and Comparative Example 1 is that the mesh size of the netting is adjusted from 2mm to 0.3mm. All other steps remain unchanged.

[0068] The results showed that (1) during the laying process, the water-absorbing resin particles did not fall directly from the mesh, but it was not easy to lay only one layer of water-absorbing resin particles, and the water-absorbing resin particles tended to overlap; (2) the adhesion between the surface layer and the mesh was very low. After soaking in water for 2 hours, it was found that some of the surface layer had detached from the mesh; (3) the expanded water-absorbing resin particles could not detach from the mesh, but could only damage the outer surface of the coating and detach from the outer surface.

[0069] Example 5

[0070] A single layer of fabric (0.5mm mesh size) was fixed on a printing plate. A water-based base paste was printed onto the mesh using a 250-mesh screen to a thickness of 25μm. A layer of loosely packed absorbent resin particles (cross-linked sodium polyacrylate, 0.1mm in size, with a water absorption ratio of 120 times, tested at 25℃ for 24 hours) was then laid on top. The absorbent resin particles not adhered to by the base paste were removed, and the mixture was baked in a 70℃ oven for 12 minutes. A water-based top paste was then printed onto the absorbent resin particles using a stencil printing method with a stencil height of 0.2mm. The top paste layer covered and enveloped the absorbent resin particles. The mixture was dried at 25℃ for 6 hours, then transferred to 60℃ for 8 hours, cooled to room temperature, and left to stand for 24 hours to obtain a pre-composite layer. The pre-composite layer is immersed in water at 25°C for 0.5 hours. After removal, the water-absorbing resin particles swell, the base layer at less than 5% of the mesh is crushed, and the outer surface of the coating is undamaged. The swollen water-absorbing resin particles are squeezed out from the mesh. Then the printed fabric is placed in an environment of 70°C for 36 hours to continue drying. After removal and cooling, a porous coated fabric is obtained.

[0071] Appendix Figure 3This is a front view of the porous coated fabric in this embodiment. It can be seen that the outer surface of the porous coating has obvious pore protrusions and is not damaged.

[0072] Appendix Figure 4 This is a back view of the porous coated fabric in this embodiment. It can be seen that the bottom slurry layer at the mesh is damaged, and the water-absorbing resin particles fall off from these damaged areas.

[0073] Example 6

[0074] The difference between this embodiment and Embodiment 5 is that in Embodiment 5, the immersion time of the pre-composite layer in 25°C water was changed from 0.5 hours to 1 hour. The remaining steps remain unchanged.

[0075] The results showed that the water-absorbing resin particles swelled, the base layer at about 40% of the mesh was crushed, and the outer surface of the coating was undamaged.

[0076] Example 7

[0077] The difference between this embodiment and Embodiment 5 is that in Embodiment 5, the soaking time of the pre-composite layer in 25°C water was changed from 0.5 hours to 3 hours. The remaining steps remain unchanged.

[0078] The results showed that the water-absorbing resin particles swelled, the base layer at about 75% of the mesh was crushed, and the outer surface of the coating was undamaged.

[0079] Example 8

[0080] The difference between this embodiment and Embodiment 5 is that in Embodiment 5, the immersion time of the pre-composite layer in 25°C water for 0.5 hours is changed to immersion in 5°C water for 2 hours. The remaining steps remain unchanged.

[0081] The results showed that the water-absorbing resin particles swelled, the base layer at about 30% of the mesh was crushed, and the outer surface of the coating was undamaged.

[0082] Example 9

[0083] The difference between this embodiment and Embodiment 5 is that in Embodiment 5, the immersion time of the pre-composite layer in 25°C water for 0.5 hours is changed to immersion in 5°C water for 6 hours. The remaining steps remain unchanged.

[0084] The results showed that the water-absorbing resin particles swelled, the base layer at about 80% of the mesh was crushed, and the outer surface of the coating was undamaged.

[0085] Comparative Example 3

[0086] When the water-absorbing resin particles in the pre-composite layer of Example 5 were directly extruded, it was found that they were difficult to detach from the mesh. This may be because the water-absorbing resin particles did not absorb water and swell, resulting in high bonding force with the base layer and / or top layer.

[0087] 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 preparing porous coated textiles, characterized in that, Includes the following steps: A water-based primer is applied to textiles to form a primer layer; The area on the textile coated with the water-based primer is a single-layer mesh structure or a single-layer fabric structure with mesh openings, wherein the size of the mesh openings in the mesh structure and the mesh openings in the single-layer fabric structure is 0.5-5mm. Water-absorbing resin particles are laid on the base slurry layer and dried for the first time to obtain the intermediate layer; The size of the water-absorbing resin particles does not exceed the mesh size; A water-based surface paste is coated onto the intermediate layer and dried a second time to obtain a pre-composite layer. The pre-composite layer is immersed in water to remove the swollen water-absorbing resin particles, and then dried for a third time to obtain the porous coated textile. The swollen absorbent resin particles are removed from the mesh of the textile.

2. The method for preparing porous coated textiles according to claim 1, characterized in that, The method for applying the water-based primer is screen printing.

3. The method for preparing porous coated textiles according to claim 1, characterized in that, The size of the absorbent resin particles does not exceed 1 / 2 of the mesh size.

4. The method for preparing porous coated textiles according to claim 1, characterized in that, The method for applying the water-based surface paste is stencil printing.

5. The method for preparing porous coated textiles according to claim 4, characterized in that, The height of the perforated screen is not less than the size of the absorbent resin particles.

6. The method for preparing porous coated textiles according to claim 1, characterized in that, The pre-composite layer is immersed in water for 0.5-12 hours at a temperature of 5-40℃.

7. A porous coated textile, characterized in that, It is prepared by the method for preparing porous coated textiles according to any one of claims 1-6.

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