Production process of imitation cowhide artificial leather fabric

Abstract

The invention relates to the technical field of artificial leather production, and discloses a production process of a cow leather-like artificial leather fabric. The production process of the novel imitation cow leather artificial leather fabric comprises the following steps: blending a luminescent material, manufacturing a luminescent film, pressing and coining, and is mainly characterized in that after absorbing visible light, the novel imitation cow leather artificial leather fabric can automatically emit light in the dark for more than 12 hours, can repeatedly absorb light, and is long in service life. The material is non-toxic, harmless, non-radioactive, safe, reliable, soft in texture, firm and wear-resistant, can be sewn into clothes, bags and the like, and can play a role in warning and decoration at night; according to the invention, two types of paste resins PSH-10 and PS-31 are mixed for use to form the PVC paste resin, so that the rheological property of the single paste resin can be changed, the use performance of the single resin can be improved, and the single resin has good transparency, polymerization degree and pseudoplastic flow characteristics, thereby ensuring the luminance of the luminous pigment on the imitation cowhide artificial leather fabric.

Description

Technical Field

[0001] The invention belongs to the technical field of artificial leather production, in particular to a production process of imitation cowhide artificial leather fabric. Background Art

[0002] Imitation cowhide artificial leather has the advantages of good waterproof performance, neat edges, high utilization rate and low price. As the application of imitation cowhide artificial leather in various fields becomes more and more extensive, people have higher and higher requirements for imitation cowhide artificial leather, which should be not only practical but also beautiful. However, the traditional imitation cowhide artificial leather has a relatively single function and can only be used to make traditional shoes, hats, clothing and decorations. How to produce imitation cowhide artificial leather that is non-toxic, harmless, non-radioactive, safe and reliable, soft in texture, strong and wear-resistant, can be sewn into clothes, bags and has special functions is a problem that needs to be solved in various fields; therefore, in view of the current situation, it is now necessary to improve it. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a production process for imitation cowhide artificial leather fabric, which effectively solves the problem that the traditional imitation cowhide artificial leather has a relatively single use function and can mostly only be used to make traditional shoes, hats, clothing, and decorations, and has no special use functions.

[0004] To achieve the above object, the present invention provides the following technical solution: a production process of imitation cowhide artificial leather fabric, comprising the following steps:

[0005] Step 1: Prepare the luminescent material: stir 25-30 parts of plasticizer, 25-30 parts of viscosity reducer and 40-50 parts of stabilizer by a vertical mixer for 20-30 minutes, then add 70-80 parts of PVC paste resin and 20-30 parts of luminescent pigment and continue stirring for 20-30 minutes, then grind the luminescent material by a grinder for 20-30 minutes, stir again by a vertical mixer for 20-30 minutes, and then evacuate;

[0006] Step 2: Making a luminous film: Using PVC leather release paper as the base layer, coating the luminous material obtained in step 1 on the base layer to form a luminous layer with a thickness of 0.25 mm, and plasticizing at 180-200° C. for 2-3 minutes;

[0007] Step 3: Pressing: Cut the luminous film into the required specifications, and then compound it with the base fabric on a laminator under the conditions of heating steam pressure of 0.8MPa, laminator hydraulic pressure of 15MPa, heating time of 10-60 minutes, and cooling time of 10-60 minutes;

[0008] Step 4: Embossing: The surface of the embossing roller in the embossing machine is heated to 120-150°C by an oil temperature machine. The embossing roller adopts a cowhide-grain embossing roller. The artificial leather obtained in step 3 is pulled through the embossing machine, and the surface of the artificial leather obtained in step 3 is embossed with cowhide grain by the heated cowhide-grain embossing roller.

[0009] Preferably, the luminescent pigment proposed in step one is a new type of high-efficiency rare earth light-storing luminescent material, which is a new generation of light-storing photoluminescent material composed of rare earth elements as activators and alkaline earth aluminate as a matrix. The rare earth light-storing luminescent material can absorb sunlight, lamplight and stray scattered light to perform light-to-light conversion.

[0010] Preferably, the PVC paste resin proposed in step 1 is prepared by mixing two types of paste resins, PSH-10 and PSM-31, in a ratio of 1:1, and can be directly mixed with a plasticizer, a viscosity reducer and a stabilizer to form a paste slurry for coating the light-emitting layer.

[0011] Preferably, the plasticizer paste in step 1 is dioctyl phthalate, which has low cost, low toxicity, good compatibility with PVC paste resin, and good storage properties.

[0012] Preferably, the stabilizer proposed in step 1 is dibutyltin dilaurate, the PVC paste resin is a heat-sensitive plastic, and the organic tin stabilizer has good transparency, good heat resistance, is non-toxic, and has no sulfide pollution, which can prevent thermal decomposition of the PVC paste resin during processing.

[0013] Preferably, the luminescent layer proposed in the step 2 is formed by processing the luminescent material and the base layer by a coating method. The coating method is based on the principle that the coating is dispersed on the surface during the coating process. The particles in the coating liquid are evenly dispersed and applied to the surface by a coating tool, thereby achieving uniform coating.

[0014] Preferably, the embossing machine proposed in step 4 is composed of a rubber roller and an embossing roller engraved with cowhide patterns, the rubber roller supports the pressure of the embossing roller on the artificial leather from below, the rubber roller is an active roller, and the embossing roller is a passive roller.

[0015] Preferably, the vertical mixer proposed in step 1 is a ZJR vertical mixer, which lifts the raw materials from the bottom of the barrel from the center to the top through the rapid rotation of the screw, and then scatters them in an umbrella shape and returns to the bottom. In this way, the raw materials are tumbled up and down in the barrel and stirred, and a large amount of raw materials can be evenly mixed in a short time.

[0016] Preferably, the grinder proposed in step 1 is a three-roller paint grinder, in which the liquid raw material is delivered into a closed grinding cylinder by a pump, and then the main engine drives the meson grinding beads to rotate at high speed, so that the paint raw material is pressurized and impacted by high-speed rotation in the narrow gap between the grinding beads, producing mixing, emulsification, dispersion, kneading, rolling, and flooding functions, so as to achieve the required fineness of the raw material. After grinding, the raw material is output outside the grinding cylinder through the high-speed rotating hard tungsten steel separation gap.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The main feature of the present invention is that after absorbing visible light, it can automatically emit light in the dark for more than 12 hours, can absorb light repeatedly, and has a long life. Moreover, this material is non-toxic, harmless, non-radioactive, safe and reliable, soft in texture, strong and wear-resistant, and can be sewn into clothes, bags, etc., which can serve as a warning and decoration at night;

[0019] 2. The present invention, by mixing two types of paste resins PSH-10 and PSM-31 to form PVC paste resin, can change the rheological properties of a single paste resin, improve the performance of a single resin, make it have good transparency, polymerization degree and pseudoplastic flow characteristics, thereby ensuring the luminous brightness of the luminous pigment on the imitation cowhide artificial leather fabric;

[0020] 3. The present invention adopts a lamination method to first make a luminous film and then select different base fabrics for compounding based on the fact that customers have various requirements for base fabrics. This allows flexible production of various styles of products to meet the requirements of different customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0022] In the attached picture:

[0023] Figure 1 The present invention is a flow chart of a production process of an imitation cowhide artificial leather fabric. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] See also Figure 1 The present invention provides a production process for imitation cowhide artificial leather fabric, comprising the following steps:

[0026] Step 1: Prepare the luminescent material: stir 25-30 parts of plasticizer, 25-30 parts of viscosity reducer and 40-50 parts of stabilizer by a vertical mixer for 20-30 minutes, then add 70-80 parts of PVC paste resin and 20-30 parts of luminescent pigment and continue stirring for 20-30 minutes, then grind the luminescent material by a grinder for 20-30 minutes, stir again by a vertical mixer for 20-30 minutes, and then evacuate;

[0027] Step 2: Making a luminous film: Using PVC leather release paper as the base layer, coating the luminous material obtained in step 1 on the base layer to form a luminous layer with a thickness of 0.25 mm, and plasticizing at 180-200° C. for 2-3 minutes;

[0028] Step 3: Pressing: Cut the luminous film into the required specifications, and then compound it with the base fabric on a laminator under the conditions of heating steam pressure of 0.8MPa, laminator hydraulic pressure of 15MPa, heating time of 10-60 minutes, and cooling time of 10-60 minutes;

[0029] Step 4: Embossing: The surface of the embossing roller in the embossing machine is heated to 120-150°C by an oil temperature machine. The embossing roller adopts a cowhide-grain embossing roller. The artificial leather obtained in step 3 is pulled through the embossing machine, and the surface of the artificial leather obtained in step 3 is embossed with cowhide grain by the heated cowhide-grain embossing roller.

[0030] The luminescent pigment proposed in step 1 is a new type of high-efficiency rare earth light-storing luminescent material, which is a new generation of light-storing photoluminescent material composed of rare earth elements as activators and alkaline earth aluminate as a matrix. The rare earth light-storing luminescent material can absorb sunlight, light and stray scattered light to perform light-to-light conversion. The PVC paste resin proposed in step 1 is a mixture of two types of paste resins, PSH-10 and PSM-31, in a ratio of 1:1, which can be directly mixed with a plasticizer, a viscosity reducer and a stabilizer to form a paste slurry for coating the luminescent layer. Step 1 The plasticizer paste proposed in step 1 is dioctyl phthalate, which has low cost, low toxicity, good compatibility with PVC paste resin, and good storage performance. The stabilizer proposed in step 1 is dibutyltin dilaurate. PVC paste resin is a heat-sensitive plastic. The organic tin stabilizer has good transparency, good heat resistance, non-toxicity, and no sulfide pollution, which can avoid thermal decomposition of PVC paste resin during processing. The luminescent layer proposed in step 2 is processed by coating the luminescent material and the base layer. The coating method is based on the coating process. According to the principle of coating dispersion on the surface, the particles in the coating liquid are evenly dispersed and applied to the surface by the coating tool, so as to achieve uniform coating. The embossing machine proposed in step 4 is composed of a rubber roller and an embossing roller engraved with cowhide patterns. The rubber roller supports the pressure of the embossing roller on the artificial leather from the bottom. The rubber roller is an active roller and the embossing roller is a passive roller. The vertical mixer proposed in step 1 is a ZJR vertical mixer. The raw materials are lifted from the bottom of the barrel from the center to the top through the rapid rotation of the screw, and then scattered in an umbrella-shaped fly and returned to the bottom. In this way, the raw materials are rolled up and down in the barrel and stirred, and a large amount of raw materials can be evenly mixed in a short time. The grinder proposed in step 1 is a three-roller coating grinder. The liquid raw material is transported into the closed grinding cylinder by a pump, and then the main machine drives the meson grinding beads to run at a high speed, so that the coating raw materials are pressurized and impacted at a high speed in the narrow gap between the grinding beads, producing mixing, emulsification, dispersion, kneading, rolling, and submerging functions, and the required fineness of the raw materials is achieved. After grinding, the hard tungsten steel separating gaps rotating at high speed are output outside the grinding cylinder.

[0031] Embodiment 1

[0032] A production process of imitation cowhide artificial leather fabric, comprising the following steps:

[0033] Step 1: Prepare the luminescent material: stir 25 parts of plasticizer, 25 parts of viscosity reducer and 40 parts of stabilizer by a vertical mixer for 20 minutes, then add 70 parts of PVC paste resin and 20 parts of luminescent pigment and continue stirring for 20 minutes, then grind the luminescent material by a grinder for 20 minutes, stir again by a vertical mixer for 20 minutes, and then evacuate;

[0034] Step 2: Making a luminous film: Using PVC leather release paper as the base layer, the luminous material obtained in step 1 is coated on the base layer to form a luminous layer with a thickness of 0.25 mm, and plasticized at 180° C. for 2 minutes;

[0035] Step 3: Pressing: Cut the luminous film into the required specifications, and then compound it with the base fabric on a laminator under the conditions of heating steam pressure of 0.8MPa, laminator hydraulic pressure of 15MPa, heating time of 20 minutes, and cooling time of 20 minutes;

[0036] Step 4: Embossing: Heat the surface of the embossing roller in the embossing machine to 120°C through an oil temperature machine. Use a cowhide-grain embossing roller. Pull the artificial leather obtained in step 3 through the embossing machine and emboss the surface of the artificial leather obtained in step 3 with a cowhide-grain embossing roller after heating.

[0037] The main feature of the imitation cowhide artificial leather fabric obtained by the above method is that after absorbing visible light, it can automatically emit light in the dark for more than 12 hours, can absorb light repeatedly, and has a long life. Moreover, this material is non-toxic, harmless, non-radioactive, safe and reliable, soft in texture, strong and wear-resistant, and can be sewn into clothes, bags, etc., which can serve as a warning and decoration at night.

[0038] Embodiment 2

[0039] A production process of imitation cowhide artificial leather fabric, comprising the following steps:

[0040] Step 1: Prepare the luminescent material: stir 28 parts of plasticizer, 28 parts of viscosity reducer and 45 parts of stabilizer by a vertical mixer for 25 minutes, then add 75 parts of PVC paste resin and 25 parts of luminescent pigment and continue stirring for 25 minutes, then grind the luminescent material by a grinder for 25 minutes, stir again by a vertical mixer for 25 minutes, and then evacuate;

[0041] Step 2: Making a luminous film: Using PVC leather release paper as the base layer, the luminous material obtained in step 1 is coated on the base layer to form a luminous layer with a thickness of 0.25 mm, and plasticized at 190° C. for 2 minutes;

[0042] Step 3: Pressing: Cut the luminous film into the required specifications, and then compound it with the base fabric on a laminator under the conditions of heating steam pressure of 0.8MPa, laminator hydraulic pressure of 15MPa, heating time of 30 minutes, and cooling time of 30 minutes;

[0043] Step 4: Embossing: Heat the surface of the embossing roller in the embossing machine to 140°C through an oil temperature machine. Use a cowhide-grain embossing roller. Pull the artificial leather obtained in step 3 through the embossing machine and emboss the surface of the artificial leather obtained in step 3 with a cowhide-grain embossing roller after heating.

[0044] By mixing two types of paste resins, PSH-10 and PSM-31, to form PVC paste resin, the rheological properties of a single paste resin can be changed, and the performance of a single resin can be improved, so that it has good transparency, degree of polymerization and pseudoplastic flow characteristics, thereby ensuring the luminous brightness of the luminous pigment on the imitation cowhide artificial leather fabric.

[0045] Embodiment 3

[0046] A production process of imitation cowhide artificial leather fabric, comprising the following steps:

[0047] Step 1: Prepare the luminescent material: stir 30 parts of plasticizer, 30 parts of viscosity reducer and 50 parts of stabilizer by a vertical mixer for 30 minutes, then add 80 parts of PVC paste resin and 30 parts of luminescent pigment and continue stirring for 30 minutes, then grind the luminescent material by a grinder for 30 minutes, stir again by a vertical mixer for 30 minutes, and then evacuate;

[0048] Step 2: Making a luminous film: Using PVC leather release paper as the base layer, apply a luminous layer of 0.25 mm thick on the base layer with the luminous material obtained in step 1, and plasticize at 200° C. for 2-3 minutes;

[0049] Step 3: Pressing: Cut the luminous film into the required specifications, and then compound it with the base fabric on a laminator under the conditions of heating steam pressure of 0.8MPa, laminator hydraulic pressure of 15MPa, heating time of 60 minutes, and cooling time of 60 minutes;

[0050] Step 4: Embossing: Heat the surface of the embossing roller in the embossing machine to 150°C through an oil temperature machine. The embossing roller adopts a cowhide-grain embossing roller. The artificial leather obtained in step 3 is pulled through the embossing machine, and the surface of the artificial leather obtained in step 3 is embossed with cowhide grain by the heated cowhide-grain embossing roller.

[0051] The imitation cowhide artificial leather fabric obtained by the above method has various requirements for base fabrics based on customers. The lamination method is adopted to first make the luminous film and then select different base fabrics for compounding. In this way, various styles of products can be flexibly produced to meet the requirements of different customers.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production process for imitation cowhide artificial leather fabric, characterized in that: The following steps are involved: Step 1: Prepare the luminescent material: stir 25-30 parts of plasticizer, 25-30 parts of viscosity reducer and 40-50 parts of stabilizer by a vertical mixer for 20-30 minutes, then add 70-80 parts of PVC paste resin and 20-30 parts of luminescent pigment and continue stirring for 20-30 minutes, then grind the luminescent material by a grinder for 20-30 minutes, stir again by a vertical mixer for 20-30 minutes, and then evacuate; Step 2: Making a luminous film: Using PVC leather release paper as the base layer, coating the luminous material obtained in step 1 on the base layer to form a luminous layer with a thickness of 0.25 mm, and plasticizing at 180-200° C. for 2-3 minutes; Step 3: Pressing: Cut the luminous film into the required specifications, and then compound it with the base fabric on a laminator under the conditions of heating steam pressure of 0.8MPa, laminator hydraulic pressure of 15MPa, heating time of 10-60 minutes, and cooling time of 10-60 minutes; Step 4: Embossing: The surface of the embossing roller in the embossing machine is heated to 120-150°C by an oil temperature machine. The embossing roller adopts a cowhide-grain embossing roller. The artificial leather obtained in step 3 is pulled through the embossing machine, and the surface of the artificial leather obtained in step 3 is embossed with cowhide grain by the heated cowhide-grain embossing roller.

2. The production process of the imitation cowhide artificial leather fabric according to claim 1, characterized in that: The luminescent pigment proposed in the step 1 is a new type of high-efficiency rare earth light-storing luminescent material, which is a new generation of light-storing photoluminescent material composed of rare earth elements as activators and alkaline earth aluminate as a matrix. The rare earth light-storing luminescent material can absorb sunlight, lamplight and stray scattered light to perform light-to-light conversion.

3. The production process of the imitation cowhide artificial leather fabric according to claim 1, characterized in that: The PVC paste resin proposed in the step 1 is prepared by mixing two types of paste resins, PSH-10 and PSM-31, in a ratio of 1:1, and can be directly mixed with a plasticizer, a viscosity reducer and a stabilizer to form a paste slurry for coating the light-emitting layer.

4. The production process of the imitation cowhide artificial leather fabric according to claim 1, characterized in that: The plasticizing paste proposed in the step 1 is dioctyl phthalate, which has low cost, low toxicity, good compatibility with PVC paste resin, and good storage properties.

5. The production process of the imitation cowhide artificial leather fabric according to claim 1, characterized in that: The stabilizer proposed in step 1 is dibutyltin dilaurate. PVC paste resin is a heat-sensitive plastic. The organic tin stabilizer has good transparency, good heat resistance, is non-toxic, and has no sulfide pollution, and can prevent thermal decomposition of the PVC paste resin during processing.

6. The production process of the imitation cowhide artificial leather fabric according to claim 1, characterized in that: The luminescent layer proposed in the step 2 is processed by a coating method of the luminescent material and the base layer. The coating method is based on the principle that the coating is dispersed on the surface during the coating process. The particles in the coating liquid are evenly dispersed and applied to the surface through a coating tool, thereby achieving uniform coating.

7. The production process of the imitation cowhide artificial leather fabric according to claim 1, characterized in that: The embossing machine proposed in step 4 is composed of a rubber roller and an embossing roller engraved with cowhide patterns. The rubber roller supports the pressure of the embossing roller on the artificial leather from below. The rubber roller is an active roller and the embossing roller is a passive roller.

8. The production process of the imitation cowhide artificial leather fabric according to claim 1, characterized in that: The vertical mixer mentioned in step 1 is a ZJR vertical mixer, which can lift the raw materials from the bottom of the barrel from the center to the top through the rapid rotation of the screw, and then scatter them in an umbrella shape and return to the bottom. In this way, the raw materials are rolled up and down in the barrel and stirred, and a large amount of raw materials can be evenly mixed in a short time.

9. The production process of imitation cowhide artificial leather fabric according to claim 1, characterized in that: The grinder proposed in step 1 is a three-roller paint grinder, in which a pump delivers liquid raw materials into a closed grinding cylinder, and the main engine drives the meson grinding beads to rotate at high speed, so that the paint raw materials are pressurized and impacted by high-speed rotation in the narrow gap between the grinding beads, producing mixing, emulsification, dispersion, kneading, rolling, and flooding functions to achieve the required fineness of the raw materials. After grinding, the raw materials are output from the grinding cylinder through the high-speed rotating hard tungsten steel separation gap.

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