Stretch-resistant organosilicon leather

Abstract

The invention provides stretch-resistant organic silicon leather which comprises a hand feeling layer, a first organic silica gel layer, a first base material, a second organic silica gel layer and a second base material which are sequentially arranged, and the second base material, the first base material and the hand feeling layer are combined together through the viscosity of the first organic silica gel layer and the second organic silica gel layer. The preparation method of the organic silicon leather comprises the following steps: coating one side of release paper with first liquid silica gel to form a first organic silica gel layer on the release paper; a first base material is arranged on the side, away from the release paper, of the first organic silica gel layer; coating one side, far away from the first organic silica gel layer, of the first substrate with second liquid silica gel so as to form a second organic silica gel layer on the first substrate; a second base material is arranged on one side, far away from the first base material, of the second organic silica gel layer; stripping the release paper, and arranging a hand feeling layer on one side, far away from the first base material, of the first organic silica gel layer. According to the present invention, the stretch-resistant and durable organosilicon leather can be provided.

Description

Technical Field

[0001] The invention relates to the technical field of artificial leather, in particular to stretch-resistant organic silicon leather. Background Art

[0002] Silicone leather is an innovative environmentally friendly material that combines the excellent performance of silicone with the texture of leather, bringing a brand new choice to modern industry and consumers. With its unique chemical structure and physical properties, this material provides an environmentally friendly and durable alternative, especially today when traditional animal leather and synthetic leather face environmental and ethical challenges. The application range of silicone leather is very wide, from car interiors, furniture decoration, electronic product exteriors, and outdoor equipment. With the advancement of technology and the increasing demand of consumers for environmentally friendly materials, silicone leather is gradually becoming a popular choice in the market.

[0003] Existing silicone leather is usually made by placing an organic silicone layer between the base fabric and the surface layer. However, due to the large ductility of the organic silicone layer, the existing organic silicone leather has poor tensile properties. For example, when a user moves on a car seat or furniture covered with leather, or frequently touches a mobile phone case, or generates tension on the leather where the leather needs to be bent, it may cause the leather to tear or even burst (exposing the organic silicone). As a result, the user has to replace the leather with a new one, which greatly reduces the user experience and incurs additional expenses for the user. Summary of the invention

[0004] The present invention aims to solve the above problems and provide a stretch-resistant and durable organic silicon leather.

[0005] To achieve the above-mentioned purpose, the present invention provides a stretch-resistant silicone leather, comprising a hand-feeling layer, a first organic silicone layer, a first substrate, a second organic silicone layer and a second substrate which are arranged in sequence, and the second substrate, the first substrate and the hand-feeling layer are combined together by the viscosity of the first organic silicone layer and the second organic silicone layer. The preparation method of the silicone leather comprises: coating a first liquid silicone on one side of a release paper to form the first organic silicone layer on the release paper; arranging the first substrate on the side of the first organic silicone layer away from the release paper; coating a second liquid silicone on the side of the first substrate away from the first organic silicone layer to form the second organic silicone layer on the first substrate; arranging a second substrate on the side of the second organic silicone layer away from the first substrate; peeling off the release paper, and arranging a hand-feeling layer on the side of the first organic silicone layer away from the first substrate.

[0006] In the present invention, the hand-feeling layer and the second substrate are the outermost layers, which can protect or support the silicone leather. By arranging the first substrate between the first silicone layer and the second silicone layer, compared with the solution of only arranging the silicone layer between the hand-feeling layer and the second substrate, the tensile strength of the silicone leather can be enhanced, the possibility of bursting can be reduced, and the silicone leather can be made durable and the user experience can be improved.

[0007] In the organic silicone leather involved in the present invention, optionally, a third organic silicone layer is further provided between the first organic silicone layer and the first substrate.

[0008] In the organic silicone leather of the present invention, optionally, the third organic silicone layer is formed on the first organic silicone layer by coating a third liquid silicone on a side of the first organic silicone layer away from the release layer.

[0009] In the organic silicone leather involved in the present invention, optionally, before the first liquid silicone is completely cured, the third liquid silicone is applied to the side of the first organic silicone layer away from the release paper; before the third liquid silicone is completely cured, the first substrate is attached to the side of the third organic silicone layer away from the first organic silicone layer; before the second liquid silicone is completely cured, the second substrate is attached to the side of the second organic silicone layer away from the first substrate. In this case, by applying the third liquid silicone before the first liquid silicone is completely cured, the viscosity of the first liquid silicone and the third liquid silicone can be enhanced, thereby improving the bonding strength of the first organic silicone layer and the third organic silicone layer; by attaching the first substrate before the third liquid silicone is completely cured, the viscosity of the third liquid silicone can be enhanced, thereby improving the bonding strength of the third organic silicone layer and the first substrate; by attaching the second substrate before the second liquid silicone is completely cured, the viscosity of the second liquid silicone can be enhanced, thereby improving the bonding strength of the second organic silicone layer and the second substrate.

[0010] In the organosilicon leather of the present invention, optionally, the color of the second substrate is black. In this case, when the organosilicon leather is used as a projection screen, the second substrate is used to receive the projection image, and by setting the color of the second substrate to black, the black second substrate can resist the interference of ambient light when the ambient light is bright, thereby enhancing the projection effect of the screen.

[0011] In the organic silicone leather involved in the present invention, optionally, the colors of the first organic silicone layer, the first substrate, and the second organic silicone layer are respectively one of black and white. In this case, by setting the color of at least one of the first organic silicone layer, the first substrate, and the second organic silicone layer to black, the function of the curtain to resist the interference of ambient light can be further enhanced, and by setting the color of at least one of the first organic silicone layer, the first substrate, and the second organic silicone layer to white, the manufacturing process of each layer can be reduced, for example, there is no need to add pigments and colorants to each layer.

[0012] In the organic silicone leather involved in the present invention, optionally, the first substrate is one of knitted fabric, woven fabric, and non-woven fabric. In this case, the knitted fabric, woven fabric, non-woven fabric and other fabrics have stronger tensile strength than the organic silicone layer. By arranging these fabrics between the first organic silicone layer and the second organic silicone layer, the tensile strength of the organic silicone leather can be greatly improved, and the organic silicone leather can be made less likely to explode at the bend, thereby increasing the service life of the organic silicone leather.

[0013] In the organic silicon leather involved in the present invention, optionally, the second substrate is one of knitted fabric, woven fabric and non-woven fabric. When the organic silicon leather of the present invention is used, it can be attached to a target object through the second substrate. For example, the organic silicon leather can be attached to a mobile phone housing, a car or a sofa through the second substrate, which can improve the appearance, feel and service life of the device.

[0014] In the organic silicon leather involved in the present invention, optionally, the thickness of the first substrate is less than the thickness of the second substrate. In this case, making the second substrate thicker can make the second substrate more firmly attached to the target object, and making the first substrate thinner can improve the tensile resistance of the organic silicon leather while ensuring the easy bending performance of the organic silicon leather.

[0015] In the organic silicone leather of the present invention, optionally, the release paper is peeled off when the manufacturing equipment is in an offline state, and a hand-feel layer is provided on a side of the first organic silicone layer away from the first substrate.

[0016] According to the present invention, a silicone leather that is stretch-resistant and durable can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the description are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of the silicone leather of the present invention attached to a target object.

[0019] Figure 2 4 is a structural diagram of another embodiment of the organosilicon leather of the present invention.

[0020] Figure 3 The present invention is a flow chart of the method for preparing the organosilicon leather.

[0021] Figure 4 It is a functional module diagram of manufacturing equipment embodiment 1 of the present invention.

[0022] Figure 5 It is a functional module diagram of manufacturing equipment embodiment 2 of the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the invention, not all of 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.

[0024] The present invention provides a stretch-resistant silicone leather. Compared with existing leather, the silicone leather has the advantages of being stretch-resistant and durable. The stretch-resistant silicone leather of the present invention can also be called stretch-resistant leather, or simply silicone leather.

[0025] The organic silicon leather of the present invention can be applied to furniture sofa surface skin, automobile interior decoration, mobile phone shell film and the like.

[0026] Reference Figure 1 In some embodiments, the organic silicone leather 2 may include a hand-feeling layer 10, a first organic silicone layer 20, a first substrate 30, a second organic silicone layer 40, and a second substrate 50 arranged in sequence. The second substrate 50, the first substrate 30, and the hand-feeling layer 10 can be combined together by the adhesiveness of the first organic silicone layer 20 and the second organic silicone layer 40.

[0027] The present invention also provides a method for preparing the organosilicon leather (hereinafter referred to as the preparation method).

[0028] In some embodiments, the preparation method may include step S100: coating a first liquid silicone on one side of the release paper to form a first organic silicone layer 20 on the release paper. Using the release paper as the second substrate allows the release paper to be used as a manufacturing base and facilitates the subsequent removal of the release paper.

[0029] In some embodiments, the preparation method may include step S200: disposing a first substrate 30 on a side of the first organic silicone layer 20 away from the release paper.

[0030] In some embodiments, the preparation method may include step S300 : coating a second liquid silicone on a side of the first substrate 30 away from the first organic silicone layer 20 , so as to form a second organic silicone layer 40 on the first substrate.

[0031] In some embodiments, the preparation method may include step S400 : disposing a second substrate 50 on a side of the second organic silicone layer 40 away from the first substrate 30 .

[0032] In some embodiments, the preparation method may include step S500 : peeling off the release paper, and disposing the hand-feeling layer 10 on a side of the first organic silicone layer 20 away from the first substrate 30 .

[0033] In some embodiments, the hand-feeling layer 10 may be disposed on a side of the first organic silicone layer 20 away from the first substrate 30 when the manufacturing equipment is in an offline state.

[0034] In the present invention, the hand-feeling layer 10 and the second substrate 50 are the outermost layers, which can protect or support the silicone leather 2. By setting the first substrate 30 between the first organic silicone layer 20 and the second organic silicone layer 40, compared with the solution of only setting an organic silicone layer between the hand-feeling layer 10 and the second substrate 50, the tensile strength of the silicone leather 2 can be enhanced, and the tearing and bursting phenomena in daily use can be effectively prevented, thereby making the silicone leather 2 durable and improving the user experience.

[0035] In some embodiments, a third organic silicone layer 60 may be further disposed between the first organic silicone layer 20 and the first substrate 30 .

[0036] In some embodiments, the third organic silicone layer 60 is formed on the first organic silicone layer 20 by coating the third liquid silicone on a side of the first organic silicone layer 20 away from the release layer.

[0037] In some embodiments, the third liquid silicone can be applied to the side of the first organic silicone layer 20 away from the release paper before the first liquid silicone is completely cured. In this case, by applying the third liquid silicone before the first liquid silicone is completely cured, the viscosity of the first liquid silicone and the third liquid silicone can be enhanced, thereby improving the bonding force between the first organic silicone layer 20 and the third organic silicone layer 60.

[0038] In some embodiments, the first substrate 30 can be attached to the side of the third organic silicone layer 60 away from the first organic silicone layer 20 before the third liquid silicone is completely cured. In this case, by attaching the first substrate 30 before the third liquid silicone is completely cured, the viscosity of the third liquid silicone can be enhanced, thereby improving the bonding force between the third organic silicone layer 60 and the first substrate 30.

[0039] Of course, in some embodiments, a third organic silicone layer 60 may be provided on any side of the second organic silicone layer 40. In some embodiments, based on the third organic silicone layer 60, another organic silicone layer (e.g., a fourth organic silicone layer) may be provided on any side of the second organic silicone layer 40.

[0040] By additionally providing a third organic silicone layer 60 or a fourth organic silicone layer, etc., the bonding strength between the layers can be increased, the stability of the overall structure of the organic silicone leather 2 can be improved, and the tensile strength can be further enhanced, thereby increasing the service life of the organic silicone leather 2.

[0041] Of course, it is understandable that the number of organic silicone layers provided in the present invention is not limited to the above-mentioned embodiments, and more organic silicone layers can be provided according to user requirements (such as requirements for thickness and wear resistance).

[0042] In addition, the present invention is not limited to providing a layer of substrate between the organic silicone layers, and multiple layers of substrates may also be provided, thereby further enhancing the tensile strength and stretchability (anti-curling or anti-curling) of the prepared organic silicone leather.

[0043] In some embodiments, the first liquid silicone, the second liquid silicone, and the third liquid silicone may have the same composition. In other embodiments, the first liquid silicone, the second liquid silicone, and the third liquid silicone may have different compositions.

[0044] In some embodiments, the components of the first liquid silicone may include: 10 parts by weight of vinyl polysiloxane, 2 parts by weight of hydrogen-containing polysiloxane, 5 parts by weight of filler, 0.1 parts by weight of platinum catalyst, and 0.01 parts by weight of inhibitor.

[0045] In some embodiments, the components of the first liquid silicone may include: 8 parts by weight of vinyl polysiloxane, 1.5 parts by weight of hydrogen-containing polysiloxane, 4 parts by weight of filler, 0.08 parts by weight of platinum catalyst, and 0.009 parts by weight of inhibitor.

[0046] In some embodiments, the components of the second liquid silicone may include: 15 parts by weight of vinyl polysiloxane, 3 parts by weight of hydrogen-containing polysiloxane, 7 parts by weight of filler, 0.15 parts by weight of platinum catalyst, and 0.02 parts by weight of inhibitor.

[0047] In some embodiments, the components of the second liquid silicone may include: 13 parts by weight of vinyl polysiloxane, 2 parts by weight of hydrogen-containing polysiloxane, 6 parts by weight of filler, 0.12 parts by weight of platinum catalyst, and 0.015 parts by weight of inhibitor.

[0048] In some embodiments, the third liquid silicone may include: 12 parts by weight of vinyl polysiloxane, 3 parts by weight of hydrogen-containing polysiloxane, 6 parts by weight of filler, 0.12 parts by weight of platinum catalyst, and 0.015 parts by weight of inhibitor, wherein the filler may be hydrophobic fumed silica.

[0049] In some embodiments, the third liquid silicone comprises: 10 parts by weight of vinyl polysiloxane, 2.5 parts by weight of hydrogen-containing polysiloxane, 5 parts by weight of filler, 0.1 parts by weight of platinum catalyst and 0.012 parts by weight of inhibitor, wherein the filler may be silicon powder.

[0050] In some embodiments, the thickness of the first organic silicone layer 20 may be 50 micrometers to 500 micrometers, preferably 150 micrometers to 300 micrometers.

[0051] In some embodiments, the thickness of the second organic silicone layer 40 may be 50 micrometers to 500 micrometers, preferably 50 micrometers to 200 micrometers.

[0052] In some embodiments, the thickness of the third organic silica gel layer 60 may be 50 micrometers to 500 micrometers, preferably 100 micrometers to 200 micrometers.

[0053] In some embodiments, before the second liquid silicone is completely cured, the second substrate 50 can be attached to the side of the second organic silicone layer 40 away from the first substrate 30. In this case, attaching the second substrate 50 before the second liquid silicone is completely cured can enhance the viscosity of the second liquid silicone, thereby improving the bonding force between the second organic silicone layer 40 and the second substrate 50.

[0054] In some embodiments, the color of the second substrate 50 can be black. In this case, when the silicone leather is used as a projection screen, the second substrate 50 can be used to receive the projected image. By setting the color of the second substrate 50 to black, the black second substrate 50 can resist the interference of ambient light when the ambient light is bright, thereby enhancing the projection effect of the screen.

[0055] In particular, the organic silicone leather of the present invention can resist stretching, stretching, and curling as a whole because a first substrate 30 is provided between organic silicone layers. When the organic silicone leather is used as a projection screen, a blackout screen, or a curtain, the possibility of curling of the product can be reduced, and the use effect and use time of the product can be enhanced.

[0056] In some embodiments, the colors of the first organic silicone layer 20, the first substrate 30, and the second organic silicone layer 40 can be black and white, respectively. In this case, by setting the color of at least one of the first organic silicone layer 20, the first substrate 30, and the second organic silicone layer 40 to black, the function of the screen to resist the interference of ambient light can be further enhanced, and by setting the color of at least one of the first organic silicone layer 20, the first substrate 30, and the second organic silicone layer 40 to white, the manufacturing process of each layer can be reduced, for example, there is no need to add pigments and colorants to each layer.

[0057] In some embodiments, the second substrate 30 can be made of luminous material. In this case, when the second substrate receives enough light, it can emit fluorescence when the second substrate is idle, thereby improving the user experience.

[0058] In some embodiments, the first substrate 30 can be one of knitted fabric, woven fabric, and non-woven fabric. In this case, the knitted fabric, woven fabric, non-woven fabric, and other fabrics have stronger tensile strength than the organic silicone layer (the first organic silicone layer 20, the second organic silicone layer 40, or the third organic silicone layer 60, etc.). By arranging these fabrics between the first organic silicone layer 20 and the second organic silicone layer 40, the tensile strength of the organic silicone leather 2 can be greatly improved, and the organic silicone leather 2 can be made less likely to explode at the bend, thereby increasing the service life of the organic silicone leather 2.

[0059] In some embodiments, the second substrate 50 can be one of knitted fabric, woven fabric, and non-woven fabric. Selecting knitted fabric, woven fabric, or non-woven fabric as the second substrate 50 can improve the wear resistance and tear resistance of the layer, thereby enhancing the stability and service life of the overall silicone leather 2.

[0060] When the organic silicon leather 2 of the present invention is used, it can be attached to a target object through the second substrate 50. For example, the organic silicon leather can be attached to a mobile phone housing, a car, a sofa or other equipment through the second substrate to improve the appearance, feel and service life of the equipment. For example, the second substrate 50 and the target object can be attached by applying glue on the surface of the target object or the surface of the second substrate 50.

[0061] In some embodiments, the thickness of the first substrate 30 may be less than the thickness of the second substrate 50. In this case, making the second substrate 50 thicker can make the second substrate 50 more firmly attached to the target object, and making the first substrate 30 thinner can improve the tensile strength of the organic silicon leather 2 while ensuring the easy bending performance of the organic silicon leather 2. In other embodiments, the thickness of the first substrate 30 may not be less than the thickness of the second substrate 50.

[0062] In some embodiments, the release paper can be peeled off when the manufacturing equipment (equipment for manufacturing silicone leather) is in an offline state, and the hand-feel layer 10 is provided on the side of the first organic silicone layer 20 away from the first substrate 30. Peeling off the release paper in an offline state during the manufacturing process improves production efficiency, reduces interference of the process on details, and ensures the integrity and aesthetics of the hand-feel layer 10.

[0063] By adjusting the thickness relationship between each layer, products of different strength and flexibility can be customized to meet the specific needs and usage scenarios of different customers.

[0064] In some embodiments, the hand-feeling layer 10 further comprises an antifouling coating. Alternatively, the hand-feeling layer can be made of an antifouling material.

[0065] In some embodiments, the hand feeling layer 10 , the first organic silicone layer 20 , the first substrate 30 , the second organic silicone layer 40 , and the second substrate 50 may be made of environmentally friendly materials.

[0066] In some embodiments, the organic silicone layers of the present invention are all made of recyclable materials.

[0067] In some embodiments, the color of the second substrate 50 can be customized according to customer requirements.

[0068] In some embodiments, the hand-feel layer 10 may have fire-resistant properties.

[0069] In some embodiments, the tensile strength of the silicone leather 2 is ≥7 MPa.

[0070] In some embodiments, the hardness of the organic silicone layer ranges from 30-80 Shore A.

[0071] In some embodiments, the adhesion strength test of the organic silicone layer meets the requirements of ISO 4624 standard.

[0072] In some embodiments, the sealing performance between the layers of the present invention is ≥ 95%.

[0073] In some embodiments, the production method includes using UV curing technology to accelerate the curing process.

[0074] In some embodiments, the silicone layer and its additives do not contain any hazardous substances and comply with REACH standards.

[0075] In some embodiments, the tear strength of the silicone leather 2 is ≥20 N / mm.

[0076] In some embodiments, the monolithic product of the present invention may be subjected to heat pressing.

[0077] In some embodiments, the present invention can detect temperature and humidity in real time through a monitoring system during the production process.

[0078] In some embodiments, the treated hand-feel layer 10 may have antibacterial properties. The enhanced antibacterial properties provide users with a healthier use experience, and are particularly suitable for applications in confined spaces, such as automotive interiors.

[0079] In some embodiments, the material used for the second substrate 50 may be an environmentally friendly flocking material. Environmentally friendly flocking material as the second substrate 50 can not only improve the aesthetics, but also ensure that the product has good recyclability after use, which is in line with the development trend of the green economy.

[0080] In some embodiments, the silicone layer can be processed into different appearances and textures to suit market needs.

[0081] According to the present invention, a silicone leather that is stretch-resistant and durable can be provided.

[0082] The organic silicon leather and the preparation method thereof of the present invention have the following advantages compared with the prior art:

[0083] 1. The tensile strength of silicone leather is improved, overcoming the defects of traditional silicone leather surface layer being weak and easily deformed by stretching.

[0084] 2. By setting the hand-feel layer, the silicone leather surface is effectively prevented from absorbing dust and other pollutants, thereby improving the aesthetics and service life.

[0085] 3. The present invention is made of environmentally friendly organic silicon materials, will not release harmful substances, and has no adverse effects on the environment and human health.

[0086] 4. The present invention has a simple structural design, a relatively simplified production process, and a low manufacturing cost, which is conducive to large-scale production and popularization and application.

[0087] The present invention provides a manufacturing device for stretch-resistant silicone leather (hereinafter referred to as manufacturing device). In other words, the manufacturing device can manufacture stretch-resistant silicone leather. Compared with existing leather, the silicone leather has the advantages of being stretch-resistant and durable.

[0088] Reference Figure 4 In some embodiments, the manufacturing device 1 may include a coating head 3 , a conveying wheel 4 , a drying device 5 , a first substrate reel 6 , and a second substrate reel 7 .

[0089] In some embodiments, the coating head 3 and the drying device 5 can be sequentially arranged on a conveying line formed by a plurality of conveying wheels 4 for conveying the release layer. Thus, the coating head 3 can be dried by the drying device 5 after completing the coating of the liquid silicone.

[0090] In some embodiments, the first substrate reel 6 and the second substrate reel 7 may be disposed at one end of a conveying line.

[0091] In some embodiments, the drying device 5 can be configured to dry the liquid silicone coated on the release layer to form an organic silicone layer on the release layer.

[0092] In some embodiments, the first substrate reel 6 and the second substrate reel 7 may be configured to sequentially laminate the first substrate and the second substrate onto the organic silicone layer, wherein the first substrate may be laminated between the organic silicone layers.

[0093] In the present invention, by laminating the first substrate between the organic silicone layers, the tensile strength of the prepared organic silicone leather can be enhanced and the possibility of bursting can be reduced, thereby making the organic silicone leather durable and improving the user experience; at the same time, the present invention also provides a manufacturing device that can manufacture the tensile-resistant organic silicone leather.

[0094] Reference Figure 5 In some embodiments, the manufacturing device may further include a controller 8. The controller 8 may be configured to at least control the operation of the coating head 3, the conveying wheel 4, the drying device 5, the first substrate reel 6 and the second substrate reel 7, and their operation sequence.

[0095] In some embodiments, the coating head 3 may be one or more.

[0096] In some embodiments, one coating head 3 can be used to sequentially coat liquid silicone to form multiple layers of organic silicone. In other words, one coating head 3 can complete the coating of multiple layers of organic silicone.

[0097] In some embodiments, multiple coating heads 3 can be used to coat liquid silicone to form multiple layers of organic silicone. In other words, when there are multiple coating heads 3, each coating head 3 can control the coating of one layer of organic silicone.

[0098] In this case, the multiple layers of organic silicone layer can be coated in sequence by one coating head 3, or can be coated separately by multiple coating heads 3, and the multiple coating heads 3 can make each layer of organic silicone layer have different properties.

[0099] In some embodiments, the coating head 3 may include a first coating head and a second coating head.

[0100] In some embodiments, the first coating head may be configured to coat the first liquid silicone on one side of the release layer, and dry the first liquid silicone layer on the release layer after drying by the drying device 5 .

[0101] In some embodiments, the first liquid silicone may be a silicone rubber solution. The main components of the silicone rubber solution may be polysiloxane and a siloxane crosslinking agent, wherein the polysiloxane may account for 50-80% and the siloxane crosslinking agent may account for 2-10%.

[0102] In some embodiments, the first liquid silicone component may include polysiloxane, siloxane crosslinking agent, filler, and other additives. Polysiloxane may account for 65%, siloxane crosslinking agent may account for 6%, filler may account for 4%, and other additives may account for 25%.

[0103] In some embodiments, the drying device 5 adopts infrared heating, the heating temperature may be 120-180° C., and the drying time may be 2-5 minutes.

[0104] In some embodiments, the second coating head can be configured to coat the second liquid silicone on a side of the first substrate away from the first organic silicone layer, and form a second organic silicone layer on the first substrate after drying by the drying device 5 .

[0105] In some embodiments, the main component of the second liquid silicone may be the same as that of the first liquid silicone. In other embodiments, the second liquid silicone may be added with 2-5% of filler, such as silicon dioxide.

[0106] In some embodiments, the second liquid silicone component may include polysiloxane, siloxane crosslinking agent, filler, and other additives. Polysiloxane may account for 70%, siloxane crosslinking agent may account for 5%, filler may account for 3%, and other additives may account for 22%.

[0107] In some embodiments, the first substrate reel 6 may be configured to laminate the first substrate onto the first organic silicone layer.

[0108] In some embodiments, the first substrate can be made of polyester knitted fabric or polyester nonwoven fabric. In some embodiments, the thickness of the first substrate can be 50-500 microns. For example, the thickness of the first substrate can be 50 microns, 100 microns, 200 microns, 300 microns, 40 microns, etc.

[0109] In some embodiments, the second substrate reel 7 may be configured to attach the second substrate to a side of the second organic silicone layer away from the first substrate.

[0110] In some embodiments, the second substrate can be made of polyester knitted fabric or polyester nonwoven fabric. In some embodiments, the thickness of the second substrate can be 100-600 microns. For example, the thickness of the second substrate can be 100 microns, 200 microns, 300 microns, 400 microns, 500 microns, 600 microns, etc.

[0111] Thus, by controlling the first coating head, the first substrate reel 6, the second coating head, and the second substrate reel 7 to work in sequence, the first organic silicone layer, the first substrate, the second organic silicone layer, and the second substrate can be formed on one side of the release layer.

[0112] In some embodiments, the coating head 3 may include a third coating head. The third coating head may be configured to coat the third liquid silicone on the side of the first organic silicone layer away from the release layer, and form a third organic silicone layer on the first organic silicone layer after drying by the drying device 5. In this case, by providing the third organic silicone layer between the first organic silicone layer and the first substrate, the toughness of the prepared organic silicone leather can be improved.

[0113] In some embodiments, the third liquid silicone may mainly consist of polysiloxane, siloxane crosslinker and filler. In some embodiments, polysiloxane accounts for 60-80%, siloxane crosslinker accounts for 3-8%, and filler such as silicon dioxide accounts for 5-15%.

[0114] In other embodiments, when there is only one coating head, the first liquid silicone, the second liquid silicone, and the third liquid silicone may have the same composition, so that the liquid silicone can be uniformly coated with one coating head, thereby speeding up the coating and manufacturing process.

[0115] In other embodiments, the number of organic silicone layers may not be 2 or 3, but may be 4, 5, 6, etc., depending on the thickness or performance of the organic silicone leather. The first substrate only needs to be disposed between any two organic silicone layers.

[0116] In some embodiments, the drying device 5 can dry the organic silicone layer until it is not completely dry before applying the next organic silicone layer. The non-complete dry state can be half dry, one quarter dry, or three quarter dry. Thus, the organic silicone layer can enhance its own adhesion in the non-complete dry state, and can improve its bonding strength with the next organic silicone layer or substrate.

[0117] In some embodiments, the manufacturing device 1 may further include an extrusion roller 9. The extrusion roller 9 may be disposed between the coating head 3 and the drying device 5, and the extrusion roller 8 may be configured to control the thickness of the liquid silicone coated on the release layer by the coating head 3. In this case, the thickness of the liquid silicone can be controlled by the extrusion roller 9, and thus the thickness of each layer of organic silicone can be controlled.

[0118] In some embodiments, the squeezing roller 9 can be made of stainless steel. One roller surface can be smooth and textureless, and the other roller surface can have a concave-convex texture. The gap between the two rollers is adjustable, and the gap range can be 0.2-0.8 mm.

[0119] In some embodiments, the manufacturing equipment may further include a peeling device for automatically peeling off the release layer, thereby facilitating automatic peeling off of the release layer after the silicone leather having the first silicone layer, the first substrate, the second silicone layer and the second substrate is prepared.

[0120] In some embodiments, the coating head further includes a hand-feel layer coating head, which is used to coat the hand-feel oil on the liquid silicone layer after the release layer is peeled off, so as to form a hand-feel layer on the organic silicone layer. Thus, after the release layer is automatically torn off, the hand-feel layer can be automatically attached to the side of the first organic silicone layer away from the first substrate.

[0121] In some embodiments, after the hand-feeling oil is coated on the liquid silicone layer, it can also be dried by a drying device 5. For example, it can be baked at 170° C. for 2 minutes to solidify the hand-feeling oil to form a hand-feeling layer.

[0122] In some embodiments, the hand-feeling oil may be silane-modified polyacrylate. The coating thickness of the hand-feeling oil may be 0.05-0.2 mm.

[0123] In some embodiments, the first substrate and the second substrate are one of knitted fabric, woven fabric, and non-woven fabric.

[0124] In some embodiments, the thickness of the first substrate is less than that of the second substrate. In this case, the second substrate is the outermost layer of the silicone leather. If the second substrate is thicker, the second substrate can be more firmly attached to the target object. If the first substrate is thinner, the stretch resistance of the silicone leather can be improved while ensuring the easy bending performance of the silicone leather.

[0125] In some embodiments, the release layer can be peeled off when the manufacturing device 1 is in an offline state, and the hand-feel layer can be attached to the organic silicone layer. In this case, by attaching the hand-feel layer to the first organic silicone layer after the release layer is peeled off, the hand-feel layer can be used as the outermost layer of the organic silicone leather, which can improve the user's touch feel.

[0126] In other words, after the silicone leather of the present invention is manufactured, the side with the first substrate can be attached to a target object for use, and the hand-feeling layer can be used as the outermost layer or protective layer.

[0127] Compared with the prior art, the manufacturing equipment of the present invention has the following technical advantages:

[0128] 1. By coating multiple layers of liquid silicone on the release layer in sequence and drying them to form multiple layers of organic silicone layers, and then laminating multiple layers of substrates of different thicknesses on and between the organic silicone layers, the tensile strength of the prepared organic silicone leather can be significantly improved, effectively solving the problem of poor tensile resistance of existing synthetic leather.

[0129] 2. The equipment of the present invention can reasonably design parameters such as substrate thickness and organic silicone layer structure. The prepared organic silicone leather has excellent properties such as wear resistance and adhesion, and can expand its application in the fields of automotive interiors, furniture, clothing, etc.

[0130] 3. The equipment of the present invention can be optionally equipped with a hand-feel layer coating head to coat the hand-feel oil on the organic silicone layer to form a hand-feel layer, thereby further optimizing the hand-feel effect of the leather and enhancing the hand-feel and durability of the leather.

[0131] 4. The device of the present invention can realize efficient automated production and improve production efficiency by automatically peeling off the release layer.

[0132] 5. The equipment and process of the present invention are simple, the raw materials are easily available, and the prepared organic silicon leather is non-toxic, harmless, and environmentally friendly, which conforms to the current environmental protection concept.

[0133] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stretch-resistant silicone leather, characterized in that: The method comprises a hand-feeling layer, a first organic silicone layer, a first substrate, a second organic silicone layer and a second substrate which are arranged in sequence, and the second substrate, the first substrate and the hand-feeling layer are combined together by the viscosity of the first organic silicone layer and the second organic silicone layer. The method for preparing the silicone leather comprises: applying a first liquid silicone on one side of a release paper to form the first organic silicone layer on the release paper; arranging the first substrate on the side of the first organic silicone layer away from the release paper; applying a second liquid silicone on the side of the first substrate away from the first organic silicone layer to form the second organic silicone layer on the first substrate; arranging a second substrate on the side of the second organic silicone layer away from the first substrate; peeling off the release paper, and arranging a hand-feeling layer on the side of the first organic silicone layer away from the first substrate.

2. The organic silicon leather according to claim 1, characterized in that: A third organic silicone layer is further disposed between the first organic silicone layer and the first substrate.

3. The organic silicon leather according to claim 2, characterized in that: The third organic silicone layer is formed on the first organic silicone layer by coating the third liquid silicone on a side of the first organic silicone layer away from the release layer.

4. The organic silicon leather according to claim 3, characterized in that: Before the first liquid silicone is completely cured, the third liquid silicone is coated on the side of the first organic silicone layer away from the release paper; before the third liquid silicone is completely cured, the first substrate is attached to the side of the third organic silicone layer away from the first organic silicone layer; before the second liquid silicone is completely cured, the second substrate is attached to the side of the second organic silicone layer away from the first substrate.

5. The organic silicon leather according to claim 1, characterized in that: The color of the second substrate is black.

6. The organic silicon leather according to claim 1, characterized in that: The first organic silicone layer, the first substrate, and the second organic silicone layer are respectively in one of black and white.

7. The organic silicon leather according to claim 1, characterized in that: The first substrate is one of knitted fabric, woven fabric and non-woven fabric.

8. The organic silicon leather according to claim 1, characterized in that: The second substrate is one of knitted fabric, woven fabric and non-woven fabric.

9. The organic silicon leather according to claim 1, characterized in that: The thickness of the first substrate is smaller than the thickness of the second substrate.

10. The organic silicon leather according to claim 1, characterized in that: The release paper is peeled off when the manufacturing equipment is in an offline state, and a hand-feel layer is provided on a side of the first organic silicone layer away from the first substrate.

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