Waterborne polyurethane dry-process transfer film synthetic leather

Abstract

The utility model relates to the technical field of synthetic leather, in particular to waterborne polyurethane dry-process transfer film synthetic leather, which comprises a polyurethane material surface layer, a substrate layer and a polyurethane material foaming layer, a woven layer is glued between the substrate layer and the polyurethane material foaming layer, the woven layer is a nylon layer, and the woven layer is made of polyurethane. The polyurethane material foaming layer and the polyurethane material surface layer are bonded, through holes are formed in the inner sides of the polyurethane material surface layer, the base layer, the woven layer and the polyurethane material foaming layer, metal rods are slidably connected to the inner sides of the through holes, and the two ends of each metal rod are fixedly connected with a first check block and a second check block correspondingly; the first check block is of a sheet-shaped structure, the second check block is of a hemispherical structure, and a plurality of conical blocks are evenly and fixedly connected to the lower surface of the first check block. Through the arrangement of the structure, the use strength of the synthetic leather is improved, and the service life of the synthetic leather is prolonged to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of synthetic leather, in particular to a waterborne polyurethane dry-film transfer synthetic leather. Background Art

[0002] Synthetic leather, also known as synthetic leather, is an artificial leather substitute made from polymer synthetic materials and cellulose substrates through chemical treatment and simulation processes. The main components of synthetic leather include polymer materials such as polyvinyl chloride and polyurethane, and cellulose substrates such as polyester and nylon.

[0003] A Chinese patent with the announcement number CN202227185U discloses a water-based polyurethane dry-film transfer synthetic leather, which is characterized by comprising a base fabric bottom layer with a non-woven fabric as the skeleton, a polyurethane material bonding layer, a polyurethane material foaming layer, and a polyurethane material surface layer connected in sequence from bottom to top. The utility model reduces environmental pollution to the greatest extent, greatly improves the working environment, does not contain toxic solvent residues in the product, has superior performance, and has technical improvements on the surface layer, effectively developing the use value that the original solvent-based polyurethane synthetic leather does not have. Using this technology, the technical route for synthetic leather development is broadened, organic solvents are not used, environmental protection requirements are met, and product costs are reduced, as well as environmental protection restrictions on polyurethane synthetic leather factories, and it has broad prospects for promotion and application.

[0004] The existing related technologies often have the following defects: in the actual use of synthetic leather, when the synthetic leather is subjected to external force during long-term use, it often tears, and the use strength cannot meet the user's use needs, shortening the service life of the synthetic leather.

[0005] Therefore, the utility model provides a waterborne polyurethane dry-process film transfer synthetic leather. Utility Model Content

[0006] The utility model aims to solve the defect that the synthetic leather in the prior art will tear when it is torn by external force during use, and proposes a waterborne polyurethane dry film transfer synthetic leather.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a water-based polyurethane dry transfer synthetic leather, including a polyurethane material surface layer, a base layer and a polyurethane material foaming layer, a woven layer is glued between the base layer and the polyurethane material foaming layer, the woven layer is a nylon layer, and the polyurethane material foaming layer and the polyurethane material surface layer are bonded to each other.

[0008] The effects achieved by the above components are: the woven layer made of nylon layer has the characteristics of high tensile strength, wear resistance, heat resistance, chemical corrosion resistance, etc., and is used as a manufacturing material for synthetic leather, which effectively improves the use intensity of synthetic leather, thereby improving the tear resistance of synthetic leather during use and extending the service life of synthetic leather.

[0009] Preferably, through holes are provided on the inner sides of the polyurethane material surface layer, the base layer, the woven layer and the polyurethane material foam layer, and metal rods are slidably connected to the inner sides of the through holes.

[0010] The effect achieved by the above components is that the metal rod passes through the inside of the through hole to connect the polyurethane material surface layer, the base layer, the polyurethane material foam layer and the braided layer, thereby avoiding cracking between the polyurethane material surface layer, the base layer, the polyurethane material foam layer and the braided layer during use.

[0011] Preferably, two ends of the metal rod are fixedly connected with a first stopper and a second stopper respectively.

[0012] The effects achieved by the above components are as follows: the provision of the first stopper and the second stopper facilitates the work of shielding the polyurethane material surface layer, the base layer, the polyurethane material foaming layer and the woven layer.

[0013] Preferably, the first stopper is a sheet-like structure, and the second stopper is a hemispherical structure.

[0014] The effect achieved by the above components is that the metal rod with a hemispherical structure facilitates the work of inserting the metal rod into the inner side of the through hole.

[0015] Preferably, a plurality of cone blocks are evenly and fixedly connected to the lower surface of the first stopper.

[0016] The effect achieved by the above components is that the cone block penetrates into the interior of the polyurethane material, thereby preventing the first stopper from rotating during use.

[0017] Preferably, a sponge layer is glued to the lower surface of the base layer.

[0018] The effects achieved by the above components are as follows: the provision of the sponge layer facilitates the wrapping work of the second stopper.

[0019] Preferably, a waterproof layer is glued to the lower surface of the sponge layer, and the waterproof layer is a polyethylene layer.

[0020] The effects achieved by the above components are: the waterproof layer made of the polyethylene layer has a good waterproof effect, which not only improves the waterproof effect of the sponge layer during use, but also avoids the phenomenon of the sponge layer shedding during use by wrapping the sponge layer.

[0021] In summary:

[0022] In the utility model, the braided layer made of nylon layer has the characteristics of high tensile strength, wear resistance, heat resistance, chemical corrosion resistance, etc., and is used as a manufacturing material for synthetic leather, which effectively improves the use strength of the synthetic leather, thereby improving the tear resistance of the synthetic leather during use and extending the service life of the synthetic leather. By setting the above structure, the use strength of the synthetic leather is improved, and the service life of the synthetic leather is extended to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic structural diagram of the utility model from another angle;

[0025] Figure 3 For the utility model Figure 2 A magnified image of point A;

[0026] Figure 4 It is a structural schematic diagram of the metal rod in the utility model;

[0027] Figure 5 For the utility model Figure 2 Schematic diagram of the disassembled structure.

[0028] Legend: 1. Surface layer of polyurethane material; 2. Foam layer of polyurethane material; 3. Woven layer; 4. Base layer; 5. Sponge layer; 6. Waterproof layer; 7. Through hole; 8. Metal rod; 9. First stopper; 10. Second stopper; 11. Cone block. DETAILED DESCRIPTION

[0029] Reference Figure 1-5 As shown, the utility model provides a technical solution: a water-based polyurethane dry-film transfer synthetic leather, comprising a polyurethane material surface layer 1, a base layer 4 and a polyurethane material foaming layer 2.

[0030] The following is a detailed description of its overall specific settings and functions.

[0031] In this embodiment: a braided layer 3 is glued between the base layer 4 and the polyurethane material foaming layer 2, and the braided layer 3 is a nylon layer, and the polyurethane material foaming layer 2 and the polyurethane material surface layer 1 are bonded. The braided layer 3 made of the nylon layer has the characteristics of high tensile strength, wear resistance, heat resistance, chemical corrosion resistance, etc., and is used as a material for making synthetic leather, which effectively improves the use strength of the synthetic leather, thereby improving the tear resistance effect of the synthetic leather during use, and prolonging the service life of the synthetic leather. A through hole 7 is provided on the inner side of the polyurethane material surface layer 1, the base layer 4, the braided layer 3 and the polyurethane material foaming layer 2, and a metal rod 8 is slidably connected to the inner side of the through hole 7. The metal rod 8 will pass through the inner side of the through hole 7 to connect the polyurethane material surface layer 1, the base layer 4 and the polyurethane material foaming layer 2 and the braided layer 3, thereby avoiding the phenomenon of cracking between the polyurethane material surface layer 1, the base layer 4 and the polyurethane material foaming layer 2 and the braided layer 3 during use. The two ends of the metal rod 8 are respectively fixedly connected with a first stopper 9 and a second stopper 10. The first stopper 9 and the second stopper 10 facilitate the work of shielding the polyurethane material surface layer 1, the base layer 4, the polyurethane material foaming layer 2 and the woven layer 3. The first stopper 9 is a sheet structure, and the second stopper 10 is a hemispherical structure. The hemispherical metal rod 8 facilitates the work of inserting into the inner side of the through hole 7.

[0032] Specifically, a plurality of cone blocks 11 are evenly fixedly connected to the lower surface of the first stopper 9. The cone blocks 11 penetrate into the interior of the polyurethane material to prevent the first stopper 9 from rotating during use. A sponge layer 5 is glued to the lower surface of the base layer 4. The provision of the sponge layer 5 facilitates the wrapping of the second stopper 10. A waterproof layer 6 is glued to the lower surface of the sponge layer 5, and the waterproof layer 6 is a polyethylene layer. The waterproof layer 6 made of a polyethylene layer has a good waterproof effect, which not only improves the waterproof effect of the sponge layer 5 during use, but also prevents the sponge layer 5 from shedding during use by wrapping the sponge layer 5.

[0033] Working principle: the woven layer 3 made of nylon layer has the characteristics of high tensile strength, wear resistance, heat resistance, chemical corrosion resistance, etc., and is used as a material for making synthetic leather, which effectively improves the use strength of synthetic leather, thereby improving the tear resistance of synthetic leather during use and extending the service life of synthetic leather. The second stopper 10 at the lower end of the metal rod 8 is inserted into the inner side of the reserved hole, and the hemispherical structure of the metal rod 8 facilitates the insertion work into the inner side of the through hole 7. At this time, the metal rod 8 will pass through the inner side of the through hole 7 to connect the polyurethane material surface layer 1, the base layer 4, the polyurethane material foaming layer 2 and the woven layer 3, thereby avoiding the phenomenon of cracking between the polyurethane material surface layer 1, the base layer 4, the polyurethane material foaming layer 2 and the woven layer 3 during use, and improving the polyurethane material surface layer 1 , the strength of the connection between the base layer 4 and the polyurethane foam layer 2 and the woven layer 3 further extends the service life of the synthetic leather, the cone block 11 penetrates into the polyurethane material, which can prevent the first stopper 9 from rotating during use, and further improves the stability of the first stopper 9. The setting of the sponge layer 5 facilitates the wrapping of the second stopper 10, and avoids the discomfort caused by the raised structure of the hemispherical second stopper 10. The waterproof layer 6 made of the polyethylene layer has a good waterproof effect, which not only improves the waterproof effect of the sponge layer 5 during use, but also avoids the phenomenon of the sponge layer 5 shedding during use by wrapping the sponge layer 5. By setting the above structure, the use strength of the synthetic leather is improved, and the service life of the synthetic leather is extended to a certain extent.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A waterborne polyurethane dry-process transfer film synthetic leather, comprising a polyurethane material surface layer (1), a base layer (4) and a polyurethane material foaming layer (2), characterized in that: A woven layer (3) is glued between the base layer (4) and the polyurethane material foam layer (2), the woven layer (3) is a nylon layer, and the polyurethane material foam layer (2) and the polyurethane material surface layer (1) are bonded to each other.

2. The waterborne polyurethane dry film transfer synthetic leather according to claim 1, characterized in that: Through holes (7) are provided on the inner sides of the polyurethane material surface layer (1), the base layer (4), the woven layer (3) and the polyurethane material foaming layer (2), and a metal rod (8) is slidably connected to the inner side of the through hole (7).

3. The waterborne polyurethane dry film transfer synthetic leather according to claim 2, characterized in that: The two ends of the metal rod (8) are respectively fixedly connected with a first stopper (9) and a second stopper (10).

4. The waterborne polyurethane dry film transfer synthetic leather according to claim 3, characterized in that: The first stopper (9) is a sheet-like structure, and the second stopper (10) is a hemispherical structure.

5. The waterborne polyurethane dry film transfer synthetic leather according to claim 3, characterized in that: A plurality of cone blocks (11) are evenly and fixedly connected to the lower surface of the first stopper (9).

6. The waterborne polyurethane dry film transfer synthetic leather according to claim 1, characterized in that: A sponge layer (5) is glued to the lower surface of the base layer (4).

7. The waterborne polyurethane dry film transfer synthetic leather according to claim 6, characterized in that: A waterproof layer (6) is glued to the lower surface of the sponge layer (5), and the waterproof layer (6) is a polyethylene layer.

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