Artificial leather and its manufacturing method

Abstract

This invention provides an artificial leather and a method for manufacturing the same. The artificial leather comprises: a base fabric layer, a thermoplastic polyolefin layer, a modified thermoplastic polyolefin layer, a paste, and a polyurethane top layer. The thermoplastic polyolefin layer is disposed on the base fabric layer. The modified thermoplastic polyolefin layer is disposed on the thermoplastic polyolefin layer. The polyurethane top layer is bonded to the modified thermoplastic polyolefin layer using the paste. The use of the modified thermoplastic polyolefin layer for bonding in the artificial leather of this invention provides better adhesion. Furthermore, the use of the thermoplastic polyolefin layer and the modified thermoplastic polyolefin layer in this invention reduces carbon emissions and energy consumption during the process.

Description

Technical Field

[0001] This invention relates to an artificial leather and a method for manufacturing the same, particularly to an artificial leather comprising a modified thermoplastic polyolefin layer and a method for manufacturing the same. Background Technology

[0002] As environmental protection requirements increase globally, regulations on emissions (such as carbon emissions and volatile organic compounds) during the manufacturing process of many goods are becoming increasingly stringent in order to reduce environmental pollution. However, it is known that the materials used in the manufacture of artificial leather have high carbon emissions and cause significant energy consumption. Furthermore, the known structure of artificial leather cannot provide a highly variable surface, and to maintain adhesion between layers, materials with identical properties must be used for processing, thus greatly limiting its processability. Summary of the Invention

[0003] In some embodiments, an artificial leather includes a base fabric layer, a thermoplastic polyolefin layer, a modified thermoplastic polyolefin layer, a paste, and a polyurethane top layer. The thermoplastic polyolefin layer is disposed on the base fabric layer. The modified thermoplastic polyolefin layer is disposed on the thermoplastic polyolefin layer. The polyurethane top layer is adhered to the modified thermoplastic polyolefin layer via the paste.

[0004] In some embodiments, an artificial leather includes a base fabric layer, a modified thermoplastic polyolefin layer, a thermoplastic polyurethane layer, a paste, and a polyurethane top layer. The modified thermoplastic polyolefin layer is disposed on the base fabric layer. The thermoplastic polyurethane layer is disposed on the modified thermoplastic polyolefin layer. The polyurethane top layer is adhered to the thermoplastic polyurethane layer by the paste.

[0005] In some embodiments, a method of manufacturing artificial leather includes: providing a base fabric layer; forming a laminated structure on the base fabric layer, the laminated structure comprising a modified thermoplastic polyolefin layer; and attaching a polyurethane top layer to the laminated structure using a paste. Attached Figure Description

[0006] When read in conjunction with the accompanying drawings, the following is a detailed description of some embodiments of the invention that facilitate understanding. It should be noted that the various structures may not be drawn to scale, and the dimensions of the various structures may be arbitrarily increased or decreased for clarity of explanation.

[0007] Figure 1 This shows a schematic cross-sectional view of artificial leather according to some embodiments of the present disclosure.

[0008] Figure 2 This shows a schematic cross-sectional view of artificial leather according to some embodiments of the present disclosure.

[0009] Figure 3This shows a schematic cross-sectional view of artificial leather according to some embodiments of the present disclosure.

[0010] Figure 4 Schematic diagrams showing one or more stages of some embodiments of the method for manufacturing artificial leather according to the present disclosure.

[0011] Figure 5 Schematic diagrams showing one or more stages of some embodiments of the method for manufacturing artificial leather according to the present disclosure.

[0012] Figure 6 Schematic diagrams showing one or more stages of some embodiments of the method for manufacturing artificial leather according to the present disclosure.

[0013] Symbol explanation:

[0014] 1: Artificial leather

[0015] 1a: Artificial leather

[0016] 1b: Artificial leather

[0017] 10: Base fabric layer

[0018] 20: Thermoplastic polyolefins

[0019] 30: Modified thermoplastic polyolefin layer

[0020] 31: First Surface

[0021] 32: Second surface

[0022] 40: Paste

[0023] 50: Polyurethane surface layer

[0024] 60: Thermoplastic polyurethane layer

[0025] 61: First Surface

[0026] 62: Second surface

[0027] 80: Modified blend layer

[0028] 81: First Surface

[0029] 82: Second Surface

[0030] 90: Layered structure

[0031] 30a: Modified thermoplastic polyolefin layer

[0032] 90a: Stacked structure Detailed Implementation

[0033] In order to provide a clearer understanding of the technical features, objectives and beneficial effects of the present invention, the technical solution of the present invention will now be described in detail below, but it should not be construed as limiting the scope of implementation of the present invention.

[0034] See Figure 1 This is a cross-sectional schematic diagram showing artificial leather 1 according to some embodiments of the present disclosure. The artificial leather 1 of the present invention includes a base fabric layer 10, a thermoplastic polyolefin (TPO) layer 20, a modified thermoplastic polyolefin (m-TPO) layer 30, a paste 40, and a polyurethane (PU) surface layer 50. In some embodiments, the base fabric layer 10 may include, but is not limited to, non-woven fabric.

[0035] The thermoplastic polyolefin layer 20 is disposed on the base fabric layer 10. In some embodiments, the thickness of the thermoplastic polyolefin layer 20 may be less than or equal to the thickness of the base fabric layer 10.

[0036] The modified thermoplastic polyolefin layer 30 is disposed on the thermoplastic polyolefin layer 20, thus the modified thermoplastic polyolefin layer 30 and the thermoplastic polyolefin layer 20 can form a laminated structure 90. In some embodiments, the modified thermoplastic polyolefin layer 30 may be a blend of thermoplastic polyolefin and maleic acid, the purpose of which is to modify the thermoplastic polyolefin by the maleic acid so that the adhesion of the modified thermoplastic polyolefin layer 30 is greater than that of the thermoplastic polyolefin layer 20. In some embodiments, based on a total weight of 100 wt% of the modified thermoplastic polyolefin layer 30, the content of maleic acid may be from 3 wt% to 50 wt%. When the maleic acid content is below 3 wt%, it will cause abnormal adhesion of the polyurethane surface layer 50 and result in a peel strength of less than 1 kg / cm between the modified thermoplastic polyolefin layer 30 and the polyurethane surface layer 50, making it unsuitable for shoe manufacturing. When the maleic acid content is above 50 wt%, it will result in poor film-forming properties of the modified thermoplastic polyolefin layer 30 and lack of processability. In some embodiments, the maleic acid content may be 20 wt% to 40 wt%, 22 wt% to 38 wt%, 24 wt% to 36 wt%, 26 wt% to 34 wt%, or 28 wt% to 32 wt%. Furthermore, in some embodiments, the thickness of the modified thermoplastic polyolefin layer 30 may be less than or equal to the thickness of the thermoplastic polyolefin layer 20.

[0037] In some embodiments, such as Figure 1As shown, the modified thermoplastic polyolefin layer 30 has a first surface (e.g., a lower surface) 31 and a second surface (e.g., an upper surface) 32. The first surface 31 contacts the thermoplastic polyolefin layer 20. The second surface 32 is opposite to the first surface 31. In some embodiments, the second surface 32 may be a corona discharge processed surface.

[0038] The paste 40 may be a non-solvent-based paste or a solvent-based paste (the solvent content may be 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, or 70%). In some embodiments, the paste 40 may contain, but is not limited to, one of the following: solvent-based polyurethane resin, waterborne polyurethane resin, thermoplastic polyurethane resin, ethylene-vinyl acetate copolymer adhesive, polyvinyl chloride adhesive, polyolefin adhesive, and epoxy resin adhesive. In some embodiments, the thickness of the paste 40 may be less than or equal to the thickness of the modified thermoplastic polyolefin layer 30.

[0039] The polyurethane surface layer 50 is bonded to the modified thermoplastic polyolefin layer 30 (e.g., the second surface (corona-treated surface) 32) via the paste 40. Therefore, as... Figure 1 As shown, the paste 40 is disposed between the polyurethane surface layer 50 and the modified thermoplastic polyolefin layer 30 (e.g., the second surface (corona-treated surface) 32). In some embodiments, the polyurethane surface layer 50 may be a water-based polyurethane surface layer. Furthermore, in some embodiments, the polyurethane surface layer 50 may be coated with a release paper (RP) transfer pattern (not shown). In some embodiments, the thickness of the polyurethane surface layer 50 may be less than or equal to the thickness of the paste 40.

[0040] The artificial leather 1 of this invention uses the modified thermoplastic polyolefin layer 30 for bonding, which provides better adhesion. Furthermore, the corona-treated surface of the modified thermoplastic polyolefin layer 30 (i.e., the second surface 32) further improves surface adhesion and enhances the overall processability of the material, making the artificial leather 1 easier to shape and thus meeting the relevant physical property requirements of shoemaking and satisfying the diverse needs of shoe manufacturing. In addition, the use of the thermoplastic polyolefin layer 20 and the modified thermoplastic polyolefin layer 30 in the artificial leather 1 of this invention reduces carbon emissions and energy consumption during the process.

[0041] See Figure 2 It is a schematic cross-sectional view showing artificial leather 1a according to some embodiments of the present disclosure. Figure 2 The artificial leather 1a has and Figure 1The structure is similar to that of artificial leather 1, the only difference being: Figure 2 The laminated structure 90a of the artificial leather 1a. In some embodiments, such as Figure 2 As shown, the laminated structure 90a may include a modified thermoplastic polyolefin layer 30a and a thermoplastic polyurethane layer 60.

[0042] The modified thermoplastic polyolefin layer 30a is disposed on the base fabric layer 10. In some embodiments, Figure 2 The base fabric layer 10 can be the same as Figure 1 The base fabric layer 10, Figure 2 The modified thermoplastic polyolefin layer 30a can be the same as Figure 1 The modified thermoplastic polyolefin layer 30. In some embodiments, the thickness of the modified thermoplastic polyolefin layer 30a may be less than or equal to the thickness of the base fabric layer 10.

[0043] The thermoplastic polyurethane layer 60 is disposed on the modified thermoplastic polyolefin layer 30a. In some embodiments, the thickness of the thermoplastic polyurethane layer 60 may be less than or equal to the thickness of the modified thermoplastic polyolefin layer 30a.

[0044] In some embodiments, such as Figure 2 As shown, the thermoplastic polyurethane layer 60 has a first surface (e.g., a lower surface) 61 and a second surface (e.g., an upper surface) 62. The first surface 61 contacts the modified thermoplastic polyolefin layer 30a. The second surface 62 is opposite to the first surface 61. In some embodiments, the second surface 62 may be a corona-treated surface.

[0045] Based on the above configuration, the polyurethane surface layer 50 can be adhered to the thermoplastic polyurethane layer 60 (e.g., the second surface (corona-treated surface) 62) via the paste 40. Therefore, as... Figure 2 As shown, the paste 40 is disposed between the polyurethane surface layer 50 and the thermoplastic polyurethane layer 60 (e.g., the second surface (corona-treated surface) 62). In some embodiments, Figure 2 The paste 40 can be the same as Figure 1 Paste 40, Figure 2 The polyurethane surface layer 50 can be the same as Figure 1 The polyurethane surface layer 50. In some embodiments, the thickness of the paste 40 may be less than or equal to the thickness of the thermoplastic polyurethane layer 60.

[0046] See Figure 3 It is a schematic cross-sectional view showing artificial leather 1b according to some embodiments of the present disclosure. Figure 3 The artificial leather 1b has and Figure 2 The structure is similar to that of artificial leather 1a, the only difference being: Figure 3 The modified blend layer 80 of the artificial leather 1b. In some embodiments, Figure 3 The modified blend layer 80 can be Figure 2 The modified thermoplastic polyolefin layer 30a and the thermoplastic polyurethane layer 60 are blended layers. That is, Figure 3 The modified blend layer 80 can be a blend of thermoplastic polyolefin, maleic acid, and thermoplastic polyurethane. Furthermore, Figure 3 The modified blend layer 80 is a single-layer structure, which is different from... Figure 2 The stacked structure 90a.

[0047] In some embodiments, such as Figure 3 As shown, the modified blend layer 80 has a first surface (e.g., a lower surface) 81 and a second surface (e.g., an upper surface) 82. The first surface 81 contacts the base fabric layer 10. The second surface 82 is opposite to the first surface 81. In some embodiments, the second surface 82 may be a corona-treated surface. Furthermore, in some embodiments, Figure 3 The base fabric layer 10 can be the same as Figure 2 The base fabric layer 10, and the thickness of the modified blend layer 80 may be less than or equal to the thickness of the base fabric layer 10.

[0048] Based on the above configuration, the polyurethane surface layer 50 can be adhered to the modified blend layer 80 (e.g., the second surface (corona-treated surface) 82) via the paste 40. Therefore, as... Figure 3 As shown, the paste 40 is disposed between the polyurethane surface layer 50 and the modified blend layer 80 (e.g., the second surface (corona-treated surface) 82). In some embodiments, Figure 3 The paste 40 can be the same as Figure 2 Paste 40, Figure 3 The polyurethane surface layer 50 can be the same as Figure 2 The polyurethane surface layer 50. In some embodiments, the thickness of the paste 40 may be less than or equal to the thickness of the modified blend layer 80.

[0049] Figures 4 to 5 Schematic diagrams showing one or more stages of some embodiments of a method for manufacturing artificial leather according to the present disclosure. In some embodiments, the manufacturing method is for manufacturing such as Figure 1 The artificial leather shown is 1.

[0050] See Figure 4 Provides a base fabric layer of 10. Figure 4 The base fabric layer 10 can be the same as Figure 1 The base fabric layer 10.

[0051] See Figure 5A laminated structure 90 is formed on the base fabric layer 10. Figure 5 The stacked structure 90 can be the same as Figure 1 The stacked structure 90. Therefore, Figure 5 The stacked structure 90 may include Figure 1 Thermoplastic polyolefin layer 20 and Figure 1 The modified thermoplastic polyolefin layer 30. In some embodiments, the step of forming the laminated structure 90 may include: co-extruding the modified thermoplastic polyolefin layer 30 and the thermoplastic polyolefin layer 20 through a T-type co-extrusion extruder (not shown) to form the laminated structure 90. In some embodiments, the modified thermoplastic polyolefin layer 30 may be a blend of thermoplastic polyolefin and maleic acid. In some embodiments, the content of maleic acid may be 3 wt% to 50 wt% based on 100 wt% of the total weight of the modified thermoplastic polyolefin layer 30. In some embodiments, the moisture content of the maleic acid may be 250 PPM to 50 PPM. When the moisture content of maleic acid is higher than 250 PPM, the film formed by the T-type co-extrusion extrusion head is prone to poor film-forming properties, and during the hot processing of the finished product, the pores will be sunken due to moisture evaporation. When the moisture content of maleic acid is lower than 50 PPM, the required drying time is too long, which contradicts the purpose of this invention to reduce carbon emissions and reduce energy consumption.

[0052] In some embodiments, such as Figure 5 As shown, after forming the laminated structure 90 (including, for example, the modified thermoplastic polyolefin layer 30 and the thermoplastic polyolefin layer 20), the process may further include: subjecting the surface of the modified thermoplastic polyolefin layer 30 (e.g., the second surface 32) to corona treatment to improve the surface polarity of the modified thermoplastic polyolefin layer 30. In some embodiments, the processing current of the corona treatment may be 3 kW to 4.5 kW, and the processing rate of the corona treatment may be 2.5 m / min to 5 m / min. When the processing current is lower than 3 kW and the processing rate is higher than 5 m / min, the dyne content may not meet the standard (it needs to be higher than 42); when the processing current is higher than 4.5 kW and the processing rate is lower than 2.5 m / min, the material surface may not be able to withstand the load, resulting in the material being broken down by the electric arc.

[0053] See Figure 1 The polyurethane surface layer 50 is bonded to the laminated structure 90 (e.g., the modified thermoplastic polyolefin layer 30) using a paste 40 to obtain, as shown in the figure. Figure 1 The artificial leather shown is 1.

[0054] Before bonding the polyurethane surface layer 50, the present invention performs corona treatment on the modified thermoplastic polyolefin layer 30, which can improve the surface adhesion of the modified thermoplastic polyolefin layer 30, allowing it to adhere well to the polyurethane surface layer 50 through the paste 40, thereby achieving surface texture and color variations to meet the diverse needs of shoemaking.

[0055] Furthermore, the current processing temperature requirement for embossing artificial leather is approximately 220-240°C, while the constituent materials of the artificial leather 1 of the present invention can be surface embossed at 170-190°C, thus reducing the overall processing temperature requirement and achieving energy saving and carbon reduction.

[0056] Figure 6 Schematic diagrams showing one or more stages of some embodiments of a method for manufacturing artificial leather according to the present disclosure. In some embodiments, the manufacturing method is for manufacturing such as Figure 2 The artificial leather 1b shown. The initial stage of the process described is related to... Figure 4 The depiction is used for manufacturing Figure 1 The artificial leather is at the same or similar stage 1. Figure 6 Depicting Figure 4 The stage following the stage described.

[0057] See Figure 6 A layered structure 90a is formed on the base fabric layer 10. Figure 6 The stacked structure 90a can be the same as Figure 2 The stacked structure 90a. Therefore, Figure 6 The stacked structure 90a may include Figure 2 Thermoplastic polyurethane layer 60 and Figure 2 The modified thermoplastic polyolefin layer 30a. In some embodiments, the step of forming the laminated structure 90a may include: co-extruding the modified thermoplastic polyolefin layer 30a and the thermoplastic polyurethane layer 60 through a T-type co-extrusion extruder (not shown) to form the laminated structure 90a. In some embodiments, the modified thermoplastic polyolefin layer 30a may be a blend of thermoplastic polyolefin and maleic acid. In some embodiments, the content of maleic acid may be 3 wt% to 50 wt% based on 100 wt% of the total weight of the modified thermoplastic polyolefin layer 30a. In some embodiments, the moisture content of the maleic acid may be 250 PPM to 50 PPM.

[0058] See Figure 2 The polyurethane surface layer 50 is bonded to the laminated structure 90a (e.g., the thermoplastic polyurethane layer 60) using a paste 40 to obtain, as shown in the figure. Figure 2 The artificial leather 1a shown.

[0059] The present invention is illustrated in detail by means of the following examples, but it is not intended to imply that the present invention is limited to the content disclosed in the following examples.

[0060] [Example 1]

[0061] (1) Extruder setting parameters

[0062] Component A thermoplastic polyolefin (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0063] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0064] The T-die die head temperature is set to 180℃.

[0065] (2) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (component B) is 1:3.

[0066] (3) The plastics of axes A and B are co-extruded into a film through a T-type co-extrusion extrusion head and then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min. After cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0067] (4) Use water-based polyurethane (PU) fabric to coat release paper (RP) to transfer the texture, and then use a non-solvent paste to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0068] [Example 2]

[0069] (1) Drying conditions

[0070] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0071] (2) Extruder setting parameters

[0072] The blend of component A thermoplastic polyolefin (70wt%) and component C maleic acid (30wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0073] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0074] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0075] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0076] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0077] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use a non-solvent paste to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0078] [Example 3]

[0079] (1) Drying conditions

[0080] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0081] (2) Extruder setting parameters

[0082] The blend of component A thermoplastic polyolefin (50wt%) and component C maleic acid (50wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0083] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0084] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0085] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0086] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0087] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use a non-solvent paste to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0088] [Example 4]

[0089] (1) Extruder setting parameters

[0090] Component A thermoplastic polyolefin (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0091] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0092] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0093] (2) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (component B) is 1:3.

[0094] (3) The plastics of axes A and B are co-extruded into a film through a T-type co-extrusion extrusion head and then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min. After cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0095] (4) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 65%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0096] [Example 5]

[0097] (1) Drying conditions

[0098] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0099] (2) Extruder setting parameters

[0100] The blend of component A thermoplastic polyolefin (70wt%) and component C maleic acid (30wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0101] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0102] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0103] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0104] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0105] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 65%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0106] [Example 6]

[0107] (1) Drying conditions

[0108] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0109] (2) Extruder setting parameters

[0110] The blend of component A thermoplastic polyolefin (50wt%) and component C maleic acid (50wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0111] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0112] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0113] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0114] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0115] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 65%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0116] [Example 7]

[0117] (1) Extruder setting parameters

[0118] Component A thermoplastic polyolefin (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0119] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0120] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0121] (2) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (component B) is 1:3.

[0122] (3) The plastics of axes A and B are co-extruded into a film through a T-type co-extrusion extrusion head and then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min. After cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0123] (4) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 35%) to bond the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0124] [Example 8]

[0125] (1) Drying conditions

[0126] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0127] (2) Extruder setting parameters

[0128] The blend of component A thermoplastic polyolefin (70wt%) and component C maleic acid (30wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0129] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0130] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0131] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0132] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0133] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 35%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0134] [Example 9]

[0135] (1) Drying conditions

[0136] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0137] (2) Extruder setting parameters

[0138] The blend of component A thermoplastic polyolefin (50wt%) and component C maleic acid (50wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0139] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0140] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0141] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0142] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0143] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 35%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0144] [Example 10]

[0145] (1) Extruder setting parameters

[0146] Component A thermoplastic polyolefin (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0147] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0148] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0149] (2) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (component B) is 1:3.

[0150] (3) The plastics of axes A and B are co-extruded into a film through a T-type co-extrusion extrusion head and then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min. After cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0151] (4) After corona treatment of the surface of the environmentally friendly artificial leather semi-finished product, the RP transfer pattern is coated with water-based PU fabric, and then the water-based PU fabric is attached to the corona-treated environmentally friendly artificial leather semi-finished product with non-solvent paste. After curing, the RP is removed to obtain the finished environmentally friendly artificial leather product.

[0152] [Example 11]

[0153] (1) Drying conditions

[0154] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0155] (2) Extruder setting parameters

[0156] The blend of component A thermoplastic polyolefin (70wt%) and component C maleic acid (30wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0157] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0158] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0159] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0160] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0161] (5) After corona treatment of the surface of the environmentally friendly artificial leather semi-finished product, the RP transfer pattern is coated with water-based PU fabric, and then the water-based PU fabric is attached to the corona-treated environmentally friendly artificial leather semi-finished product with non-solvent paste. After curing, the RP is removed to obtain the finished environmentally friendly artificial leather product.

[0162] [Example 12]

[0163] (1) Drying conditions

[0164] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0165] (2) Extruder setting parameters

[0166] The blend of component A thermoplastic polyolefin (50wt%) and component C maleic acid (50wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0167] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0168] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0169] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0170] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0171] (5) After corona treatment of the surface of the environmentally friendly artificial leather semi-finished product, the RP transfer pattern is coated with water-based PU fabric, and then the water-based PU fabric is attached to the corona-treated environmentally friendly artificial leather semi-finished product with non-solvent paste. After curing, the RP is removed to obtain the finished environmentally friendly artificial leather product.

[0172] [Example 13]

[0173] (1) Extruder setting parameters

[0174] Component A thermoplastic polyolefin (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0175] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0176] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0177] (2) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (component B) is 1:3.

[0178] (3) The plastics of axes A and B are co-extruded into a film through a T-type co-extrusion extrusion head and then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min. After cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0179] (4) After corona treatment of the surface of the environmentally friendly artificial leather semi-finished product, the RP transfer pattern is coated with water-based PU fabric, and then the water-based PU fabric is attached to the corona-treated environmentally friendly artificial leather semi-finished product through solvent-based paste (solvent content 65%). After curing, the RP is removed to obtain the finished environmentally friendly artificial leather product.

[0180] [Example 14]

[0181] (1) Drying conditions

[0182] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0183] (2) Extruder setting parameters

[0184] The blend of component A thermoplastic polyolefin (70wt%) and component C maleic acid (30wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0185] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0186] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0187] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0188] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0189] (5) After corona treatment of the surface of the environmentally friendly artificial leather semi-finished product, the RP transfer pattern is coated with water-based PU fabric, and then the water-based PU fabric is attached to the corona-treated environmentally friendly artificial leather semi-finished product through solvent-based paste (solvent content 65%). After curing, the RP is removed to obtain the finished environmentally friendly artificial leather product.

[0190] [Example 15]

[0191] (1) Drying conditions

[0192] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0193] (2) Extruder setting parameters

[0194] The blend of component A thermoplastic polyolefin (50wt%) and component C maleic acid (50wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0195] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0196] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0197] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0198] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0199] (5) After corona treatment of the surface of the environmentally friendly artificial leather semi-finished product, the RP transfer pattern is coated with water-based PU fabric, and then the water-based PU fabric is attached to the corona-treated environmentally friendly artificial leather semi-finished product through solvent-based paste (solvent content 65%). After curing, the RP is removed to obtain the finished environmentally friendly artificial leather product.

[0200] [Example 16]

[0201] (1) Extruder setting parameters

[0202] Component A thermoplastic polyolefin (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0203] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0204] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0205] (2) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (component B) is 1:3.

[0206] (3) The plastics of axes A and B are co-extruded into a film through a T-type co-extrusion extrusion head and then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min. After cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0207] (4) After corona treatment of the surface of the environmentally friendly artificial leather semi-finished product, the RP transfer pattern is coated with water-based PU fabric, and then the water-based PU fabric is attached to the corona-treated environmentally friendly artificial leather semi-finished product through solvent-based paste (solvent content 35%). After curing, the RP is removed to obtain the finished environmentally friendly artificial leather product.

[0208] [Example 17]

[0209] (1) Drying conditions

[0210] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0211] (2) Extruder setting parameters

[0212] The blend of component A thermoplastic polyolefin (70wt%) and component C maleic acid (30wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0213] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0214] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0215] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0216] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0217] (5) After corona treatment of the surface of the environmentally friendly artificial leather semi-finished product, the RP transfer pattern is coated with water-based PU fabric, and then the water-based PU fabric is attached to the corona-treated environmentally friendly artificial leather semi-finished product through solvent-based paste (solvent content 35%). After curing, the RP is removed to obtain the finished environmentally friendly artificial leather product.

[0218] [Example 18]

[0219] (1) Drying conditions

[0220] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0221] (2) Extruder setting parameters

[0222] The blend of component A thermoplastic polyolefin (50wt%) and component C maleic acid (50wt%) is fed into shaft A, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0223] Component B thermoplastic polyolefin (100wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0224] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0225] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (the blend of components A and C) to the lower layer (component B) is 1:3.

[0226] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0227] (5) After corona treatment of the surface of the environmentally friendly artificial leather semi-finished product, the RP transfer pattern is coated with water-based PU fabric, and then the water-based PU fabric is attached to the corona-treated environmentally friendly artificial leather semi-finished product through solvent-based paste (solvent content 35%). After curing, the RP is removed to obtain the finished environmentally friendly artificial leather product.

[0228] [Example 19]

[0229] (1) Drying conditions

[0230] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0231] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0232] (2) Extruder setting parameters

[0233] Component A thermoplastic polyurethane (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0234] The blend of component B thermoplastic polyolefin (90wt%) and component C maleic acid (10wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0235] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0236] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (blend of components B and C) is 1:3.

[0237] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0238] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 35%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0239] [Example 20]

[0240] (1) Drying conditions

[0241] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0242] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0243] (2) Extruder setting parameters

[0244] Component A thermoplastic polyurethane (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0245] The blend of component B thermoplastic polyolefin (80wt%) and component C maleic acid (20wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0246] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0247] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (blend of components B and C) is 1:3.

[0248] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0249] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 35%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0250] [Example 21]

[0251] (1) Drying conditions

[0252] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0253] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0254] (2) Extruder setting parameters

[0255] Component A thermoplastic polyurethane (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0256] The blend of component B thermoplastic polyolefin (70wt%) and component C maleic acid (30wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0257] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0258] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (blend of components B and C) is 1:3.

[0259] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0260] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 35%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0261] [Example 22]

[0262] (1) Drying conditions

[0263] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0264] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0265] (2) Extruder setting parameters

[0266] Component A thermoplastic polyurethane (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0267] The blend of component B thermoplastic polyolefin (90wt%) and component C maleic acid (10wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0268] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0269] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (blend of components B and C) is 1:3.

[0270] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0271] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use a non-solvent paste to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0272] [Example 23]

[0273] (1) Drying conditions

[0274] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0275] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0276] (2) Extruder setting parameters

[0277] Component A thermoplastic polyurethane (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0278] The blend of component B thermoplastic polyolefin (80wt%) and component C maleic acid (20wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0279] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0280] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (blend of components B and C) is 1:3.

[0281] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0282] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use a non-solvent paste to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0283] [Example 24]

[0284] (1) Drying conditions

[0285] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0286] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0287] (2) Extruder setting parameters

[0288] Component A thermoplastic polyurethane (100wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃, and 180℃.

[0289] The blend of component B thermoplastic polyolefin (70wt%) and component C maleic acid (30wt%) is fed into the B shaft, and the extruder temperature is set sequentially to 170℃, 190℃, 185℃, and 180℃.

[0290] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0291] (3) Adjust the metering pump speeds of axes A and B so that the thickness ratio of the upper layer (component A) to the lower layer (blend of components B and C) is 1:3.

[0292] (4) The plastics of axes A and B are co-extruded through a T-type co-extrusion extrusion head to form a film, which is then pressed onto a non-woven fabric by a forming wheel and a silicone wheel. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, an environmentally friendly artificial leather semi-finished product can be obtained.

[0293] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use a non-solvent paste to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0294] [Example 25]

[0295] (1) Drying conditions

[0296] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0297] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0298] (2) Extruder setting parameters

[0299] The blend of component A thermoplastic polyurethane (48wt%), component B thermoplastic polyolefin (48wt%) and component C maleic acid (4wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃ and 180℃.

[0300] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0301] (3) Adjust the speed of the metering pump on axis A.

[0302] (4) The plastic on the A axis is co-extruded through the T-type co-extrusion extrusion head to form a film, which is then pressed by the forming wheel and the silicone wheel and then coated onto the non-woven fabric. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, the environmentally friendly artificial leather semi-finished product can be obtained.

[0303] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use a non-solvent paste to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0304] [Example 26]

[0305] (1) Drying conditions

[0306] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0307] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0308] (2) Extruder setting parameters

[0309] The blend of component A thermoplastic polyurethane (32wt%), component B thermoplastic polyolefin (64wt%) and component C maleic acid (4wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃ and 180℃.

[0310] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0311] (3) Adjust the speed of the metering pump on axis A.

[0312] (4) The plastic on the A axis is co-extruded through the T-type co-extrusion extrusion head to form a film, which is then pressed by the forming wheel and the silicone wheel and then coated onto the non-woven fabric. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, the environmentally friendly artificial leather semi-finished product can be obtained.

[0313] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use a non-solvent paste to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0314] [Example 27]

[0315] (1) Drying conditions

[0316] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0317] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0318] (2) Extruder setting parameters

[0319] The blend of component A thermoplastic polyurethane (64wt%), component B thermoplastic polyolefin (32wt%) and component C maleic acid (4wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃ and 180℃.

[0320] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0321] (3) Adjust the speed of the metering pump on axis A.

[0322] (4) The plastic on the A axis is co-extruded through the T-type co-extrusion extrusion head to form a film, which is then pressed by the forming wheel and the silicone wheel and then coated onto the non-woven fabric. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, the environmentally friendly artificial leather semi-finished product can be obtained.

[0323] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use a non-solvent paste to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0324] [Example 28]

[0325] (1) Drying conditions

[0326] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0327] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0328] (2) Extruder setting parameters

[0329] The blend of component A thermoplastic polyurethane (48wt%), component B thermoplastic polyolefin (48wt%) and component C maleic acid (4wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃ and 180℃.

[0330] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0331] (3) Adjust the speed of the metering pump on axis A.

[0332] (4) The plastic on the A axis is co-extruded through the T-type co-extrusion extrusion head to form a film, which is then pressed by the forming wheel and the silicone wheel and then coated onto the non-woven fabric. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, the environmentally friendly artificial leather semi-finished product can be obtained.

[0333] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 35%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0334] [Example 29]

[0335] (1) Drying conditions

[0336] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0337] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0338] (2) Extruder setting parameters

[0339] The blend of component A thermoplastic polyurethane (32wt%), component B thermoplastic polyolefin (64wt%) and component C maleic acid (4wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃ and 180℃.

[0340] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0341] (3) Adjust the speed of the metering pump on axis A.

[0342] (4) The plastic on the A axis is co-extruded through the T-type co-extrusion extrusion head to form a film, which is then pressed by the forming wheel and the silicone wheel and then coated onto the non-woven fabric. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, the environmentally friendly artificial leather semi-finished product can be obtained.

[0343] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 35%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0344] [Example 30]

[0345] (1) Drying conditions

[0346] The moisture content of component A thermoplastic polyurethane is controlled between 250 PPM and 50 PPM.

[0347] The moisture content of component C, maleic acid, was controlled between 250 PPM and 50 PPM.

[0348] (2) Extruder setting parameters

[0349] The blend of component A thermoplastic polyurethane (64wt%), component B thermoplastic polyolefin (32wt%) and component C maleic acid (4wt%) is fed into shaft A, and the extruder temperature is set sequentially to 180℃, 200℃, 190℃ and 180℃.

[0350] The T-type co-extrusion extruder head is set to a temperature of 180℃.

[0351] (3) Adjust the speed of the metering pump on axis A.

[0352] (4) The plastic on the A axis is co-extruded through the T-type co-extrusion extrusion head to form a film, which is then pressed by the forming wheel and the silicone wheel and then coated onto the non-woven fabric. The linear speed of the forming wheel is set to 3m / min, and after cooling and shaping by the forming wheel, the environmentally friendly artificial leather semi-finished product can be obtained.

[0353] (5) Use water-based PU fabric to coat the RP transfer pattern, and then use solvent-based paste (solvent content 35%) to attach the water-based PU fabric to the environmentally friendly artificial leather semi-finished product. After curing, remove the RP to obtain the environmentally friendly artificial leather finished product.

[0354] The artificial leather described above corresponds to Examples 1-18. Figure 1 Artificial leather 1, corresponding to the artificial leather in Examples 19-24 Figure 2 Artificial leather 1a, corresponding to the artificial leathers of Examples 25-30 Figure 3 Artificial leather 1b. The peel strength test results of Examples 1 to 30 are summarized in Table 1 below. As can be seen from the results in Table 1, the peel strength of Examples 11, 12, 14, 15, 20, 21, 23 and 24 can all reach above 4.5Kg / 2.54cm, among which the peel strength of Examples 11 and 24 can even reach 7.1Kg / 2.54cm.

[0355] Table 1. Peel strength test results of Examples 1-30

[0356]

[0357]

[0358]

[0359]

[0360] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the invention. Those skilled in the art, after reading the above teachings, will be able to make appropriate modifications to the above embodiments while still achieving the effects claimed by the present invention. The scope of protection of the present invention should be determined by the appended claims.

Claims

1. An artificial leather, comprising: Base fabric layer; A thermoplastic polyolefin layer is disposed on the base fabric layer; A modified thermoplastic polyolefin layer is disposed on the thermoplastic polyolefin layer, wherein the modified thermoplastic polyolefin layer is a blend of thermoplastic polyolefin and maleic acid, and the water content of the maleic acid is 250 PPM to 50 PPM, wherein the content of the maleic acid is 3 wt% to 50 wt% based on a total weight of 100 wt% of the modified thermoplastic polyolefin layer; and A polyurethane surface layer is bonded to the modified thermoplastic polyolefin layer by means of a paste.

2. The artificial leather of claim 1, wherein the adhesion of the modified thermoplastic polyolefin layer is greater than that of the thermoplastic polyolefin layer.

3. The artificial leather of claim 1, wherein the paste comprises one of the following: solvent-based polyurethane resin, waterborne polyurethane resin, thermoplastic polyurethane resin, ethylene-vinyl acetate copolymer adhesive, polyvinyl chloride adhesive, polyolefin adhesive, and epoxy resin adhesive.

4. An artificial leather, comprising: Base fabric layer; A modified thermoplastic polyolefin layer is disposed on the base fabric layer, wherein the modified thermoplastic polyolefin layer is a blend of thermoplastic polyolefin and maleic acid, and the water content of the maleic acid is 250 PPM to 50 PPM, wherein the content of maleic acid is 3 wt% to 50 wt% based on a total weight of 100 wt% of the modified thermoplastic polyolefin layer; A thermoplastic polyurethane layer disposed on the modified thermoplastic polyolefin layer; and A polyurethane surface layer is bonded to the thermoplastic polyurethane layer using a paste.

5. A method for manufacturing artificial leather, comprising: Provide a base fabric layer; A laminated structure is formed on the base fabric layer, the laminated structure comprising a modified thermoplastic polyolefin layer, wherein the modified thermoplastic polyolefin layer is a blend of thermoplastic polyolefin and maleic acid, and the water content of the maleic acid is 250 PPM to 50 PPM, wherein the content of the maleic acid is 3 wt% to 50 wt% based on a total weight of 100 wt% of the modified thermoplastic polyolefin layer; The surface of the modified thermoplastic polyolefin layer is subjected to corona treatment, and the processing current of the corona treatment is 3KW to 4.5KW; and The polyurethane surface layer is bonded to the laminated structure using a non-solvent paste.

Images