Light-resistant and yellowing-resistant leather

Abstract

The top end of a leather body is coated with an adhesion base layer, the adhesion base layer is coated with an anti-yellowing layer, the anti-yellowing layer is coated with a reinforcing layer, the reinforcing layer is coated with a protective layer, the protective layer comprises a shading coating and a sunscreen coating coated on the outer side of the shading coating, and the bottom end of the leather body is provided with a reinforcing layer. A damping layer is arranged at the bottom end of the reinforcing layer; a base cloth layer is arranged at the bottom end of the damping layer; the problem of exposure yellowing of the leather body can be effectively solved through the anti-yellowing layer, the sun-proof and anti-yellowing performance of the leather body is further improved through the protective layer, and the durability of the leather body is greatly improved through the reinforcing layer, the damping layer and the base cloth layer.

Description

Technical Field

[0001] The utility model relates to the technical field of leather, in particular to a light-resistant and yellowing-resistant leather. Background Art

[0002] Leather is the animal skin that has been denatured and is not easy to rot through physical and chemical processing such as hair removal and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. Its surface has a special grain layer with natural grain and luster, and feels comfortable. The leather industry covers the main industries such as leather making, shoemaking, leather clothing, leather goods, fur and its products, as well as the supporting industries such as leather chemicals, leather hardware, leather machinery, and accessories.

[0003] Yellowing refers to the phenomenon that the color turns yellow under the long-term irradiation of natural sunlight, ultraviolet light, or under the action of heat, oxygen, stress, trace moisture, impurities, etc. Most of the existing leathers do not have a yellowing-resistant structure, so they are prone to yellowing. When leather is used in clothing, it will reduce the aesthetic feeling of the clothing. In addition, some leathers have low tensile strength, so they are prone to cracks or even be torn after being frequently torn by external forces, resulting in damage to the leather and poor durability. Summary of the Invention

[0004] In view of the deficiencies of the above problem points, the utility model provides a light-resistant and yellowing-resistant leather.

[0005] The utility model realizes the above object through the following technical solutions: a light-resistant and yellowing-resistant leather, including a leather body, an attachment base layer is coated on the top end of the leather body, an anti-yellowing layer is coated on the attachment base layer, a reinforcement layer is coated on the anti-yellowing layer, a protective layer is coated on the reinforcement layer, the protective layer includes a light-shielding coating and a sunscreen coating coated on the outside of the light-shielding coating, a reinforcement layer is arranged at the bottom end of the leather body, a shock-absorbing layer is arranged at the bottom end of the reinforcement layer, and a base cloth layer is arranged at the bottom end of the shock-absorbing layer.

[0006] Preferably, a plurality of grooves are formed on the lower surface of the leather body by hot pressing, a plurality of tensile ribs are arranged on the upper surface of the shock-absorbing layer, and the tensile ribs press a part of the reinforcement layer into the grooves and bond it inside the grooves.

[0007] Preferably, the reinforcement layer is woven by warp and weft of a first reinforcement line and a second reinforcement line. The first reinforcement line is twisted by a plurality of Kevlar fibers, and the second reinforcement line is twisted by a plurality of polyester fibers.

[0008] Preferably, the shock-absorbing layer is made of EVA, and the tensile ribs are made of rubber material.

[0009] Preferably, the shock-absorbing layer is internally provided with hollow holes, and the hollow holes are in an oval structure.

[0010] Preferably, the base fabric layer includes a tensile-resistant layer and an elastic layer stitched and connected to the tensile-resistant layer. The side of the tensile-resistant layer close to the elastic layer is provided with a concave-convex surface, and the side of the elastic layer close to the tensile-resistant layer is provided with a concave-convex surface. The concave-convex surface on the tensile-resistant layer fits with the concave-convex surface on the elastic layer.

[0011] Preferably, the anti-yellowing layer is a polyurethane anti-yellowing resin layer.

[0012] Preferably, the reinforcing layer contains a highly elastic super-soft resin layer and a conductive fiber layer. The highly elastic super-soft resin layer is located above the anti-yellowing layer, and the conductive fiber layer is located above the highly elastic super-soft resin layer.

[0013] Preferably, the light-shielding coating is light-shielding paint.

[0014] Preferably, the sunscreen coating is a silver glue coating.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The problem of yellowing of the leather body caused by exposure can be effectively solved by the anti-yellowing layer provided; through the adhesion base layer provided, there is an adhesion force between the adhesion base layer and the leather body, thereby improving the adhesion time of the anti-yellowing layer on the leather body to a certain extent and enhancing the anti-yellowing property of the leather body; through the protective layer provided, the leather body has a light-shielding coating and a sunscreen coating, which can prevent the leather body from yellowing due to direct sunlight, thereby further improving the sun resistance and anti-yellowing performance of the leather body.

[0017] 2. Through the reinforcing layer and the shock-absorbing layer provided, and through the cooperation of the tensile ribs and the grooves, the connection area between the leather body, the reinforcing layer, the tensile ribs and the shock-absorbing layer is increased, and the connection is more firm, so that the reinforcing layer and the tensile ribs are not easily detached from between the leather body and the shock-absorbing layer, thereby forming a firm connection structure between the leather body, the reinforcing layer, the tensile ribs and the shock-absorbing layer; through the setting of the reinforcing layer and the tensile ribs, the leather body can be reinforced, so that the tensile strength of the leather body is greatly improved, thereby avoiding cracks and tears in the leather body; the shock-absorbing layer provided enhances the overall shock absorption effect of the leather body, improves the shock-absorbing effect of the leather, and makes the leather body not easily damaged; at the same time, by using the connection method between the tensile-resistant layer and the elastic layer, the overall structural firmness and strength of the base fabric layer are enhanced, thereby ensuring the structural firmness and strength of the base fabric layer and greatly improving the durability of the leather body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the leather of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the protective layer of the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the reinforcing layer of the present utility model.

[0021] In the figure: 1. Leather body; 11. Groove; 2. Adhesive base layer; 3. Anti-yellowing layer; 4. Reinforcing layer; 41. High-elastic super-soft resin layer; 42. Conductive fiber layer; 5. Protective layer; 51. Light-shielding coating; 52. Sunscreen coating; 6. Reinforcement layer; 7. Shock-absorbing layer; 71. Tensile rib; 72. Hollow hole; 8. Base fabric layer; 81. Anti-tensile layer; 82. Elastic layer. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0023] Such as Figure 1 、 Figure 2 And Figure 3As shown, a light-resistant and yellowing-resistant leather includes a leather body 1. An attachment base layer 2 is coated on the top of the leather body 1. An anti-yellowing layer 3 is coated on the attachment base layer 2. A reinforcing layer 4 is coated on the anti-yellowing layer 3. A protective layer 5 is coated on the reinforcing layer 4. The protective layer 5 includes a light-shielding coating 51 and a sunscreen coating 52 coated on the outside of the light-shielding coating 51. A reinforcing layer 6 is provided at the bottom of the leather body 1. A shock-absorbing layer 7 is provided at the bottom of the reinforcing layer 6. A base cloth layer 8 is provided at the bottom of the shock-absorbing layer 7. The anti-yellowing layer 3 is a polyurethane yellowing-resistant resin layer. The reinforcing layer 4 contains a highly elastic and super-soft resin layer 41 and a conductive fiber layer 42. The highly elastic and super-soft resin layer 41 is located above the anti-yellowing layer 3, and the conductive fiber layer 42 is located above the highly elastic and super-soft resin layer 41. The light-shielding coating 51 is a light-shielding paint, and the sunscreen coating 52 is a silver glue coating. With this structure, the problem of yellowing of the leather body 1 caused by exposure can be effectively solved by setting the anti-yellowing layer 3. The polyurethane yellowing-resistant resin layer is coated with a polyurethane yellowing-resistant resin containing hexamethylene diisocyanate. The polyurethane yellowing-resistant resin itself has excellent anti-yellowing performance. At the same time, since there is no large conjugate body that can form a chromophore group inside hexamethylene diisocyanate, its addition to the polyurethane yellowing-resistant resin can make the polyurethane yellowing-resistant resin not change color under external light irradiation, fundamentally alleviating the yellowing problem of the leather body 1. The highly elastic and super-soft resin in the reinforcing layer 4 can effectively improve the resistance to deformation of the leather body 1, so that when the leather body 1 is stretched during use, no stretching marks are likely to appear on its surface, improving the aesthetics and flexibility of the product. At the same time, since the highly elastic and super-soft resin contains conductive fibers, it can effectively prevent the leather body 1 from generating static electricity, thus avoiding the adsorption of dust and other particulate matters on the leather body 1, and improving the cleanliness of the leather body 1 to a certain extent. By setting the attachment base layer 2, there is an adhesion force between the attachment base layer 2 and the leather body 1, thus improving the attachment time of the anti-yellowing layer 3 on the leather body 1 to a certain extent and enhancing the anti-yellowing property of the leather body 1. By setting the protective layer 5, the leather body 1 has a light-shielding coating 51 and a sunscreen coating 52, which can prevent the leather body 1 from yellowing due to direct sunlight, thus further improving the sun resistance and anti-yellowing performance of the leather body 1.

[0024] As Figure 1As shown in the figure, a plurality of grooves 11 are formed on the lower surface of the leather body 1 by hot pressing. A plurality of tensile rib strips 71 are arranged on the upper surface of the shock-absorbing layer 7. The tensile rib strips 71 press a part of the reinforcing layer 6 into the grooves 11 and bond it inside the grooves 11. The reinforcing layer 6 is woven by warp and weft of a first reinforcing line and a second reinforcing line. The first reinforcing line is twisted by a plurality of Kevlar fibers, and the second reinforcing line is twisted by a plurality of polyester fibers. The shock-absorbing layer 7 is made of EVA, and the tensile rib strips 71 are made of rubber material. Hollow holes 72 are arranged inside the shock-absorbing layer 7, and the hollow holes 72 are of an elliptical structure. With this structure, through the arranged reinforcing layer 6 and shock-absorbing layer 7, and then through the cooperation of the tensile rib strips 71 and the grooves 11, the connection area between the leather body 1, the reinforcing layer 6, the tensile rib strips 71 and the shock-absorbing layer 7 is increased, and the connection is more firm, so that the reinforcing layer 6 and the tensile rib strips 71 are not easily detached from between the leather body 1 and the shock-absorbing layer 7, thus forming a firm connection structure among the leather body 1, the reinforcing layer 6, the tensile rib strips 71 and the shock-absorbing layer 7; through the arrangement of the reinforcing layer 6 and the tensile rib strips 71, the leather body 1 can be reinforced, so that the tensile strength of the leather body 1 is greatly improved, and thus the leather body 1 can be prevented from cracking and being torn; the arranged shock-absorbing layer 7 enhances the overall shock absorption effect of the leather body 1, improves the shock-absorbing effect of the leather, makes the leather body 1 not easily damaged, and at the same time, the hollow holes 72 are of an elliptical structure, and by using the arc structure of the ellipse, a good effect of dispersing the impact force is achieved.

[0025] As Figure 1 shown, the base cloth layer 8 includes a tensile-resistant layer 81 and an elastic layer 82 stitched and connected to the tensile-resistant layer 81. One side of the tensile-resistant layer 81 close to the elastic layer 82 is set as a concave-convex surface, one side of the elastic layer 82 close to the tensile-resistant layer 81 is set as a concave-convex surface, and the concave-convex surface on the tensile-resistant layer 81 is fitted with the concave-convex surface on the elastic layer 82. With this structure, by using the connection mode between the tensile-resistant layer 81 and the elastic layer 82, the overall structural firmness and strength of the base cloth layer 8 are enhanced, so as to ensure the structural firmness and strength of the base cloth layer 8, and greatly improve the durability of the leather body 1.

[0026] During use, the provided protective layer 5 can prevent the leather body 1 from yellowing due to direct sunlight; the provided anti-yellowing layer 3 can effectively solve the problem of yellowing of the leather body 1 caused by exposure; there is an adhesive force between the attachment base layer 2 and the leather body 1, thereby improving the attachment time of the anti-yellowing layer 3 on the leather body 1 to a certain extent; the reinforcement layer 4 not only improves the resistance of the leather body 1 to deformation, but also can prevent the leather body 1 from generating static electricity; the cooperation of the tensile rib 71 and the groove 11 makes the connection between the leather body 1, the reinforcement layer 6, the tensile rib 71 and the shock-absorbing layer 7 more firm. Through the settings of the reinforcement layer 6 and the tensile rib 71, the leather body 1 can be reinforced, so that the tensile strength of the leather body 1 is greatly improved, and the shock-absorbing layer 7 enhances the overall shock-absorbing effect of the leather body 1 and improves the shock-absorbing effect of the leather; through the settings of the anti-tensile layer 81 and the elastic layer 82, not only the overall structural firmness and strength of the base cloth layer 8 are enhanced, thereby ensuring the structural firmness and strength of the base cloth layer 8, but also the durability of the leather body 1 is greatly improved.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An anti-light and yellowing-resistant leather, comprising a leather body (1), characterized in that: The top of the leather body (1) is coated with an adhesion base layer (2), the adhesion base layer (2) is coated with an anti-yellowing layer (3), the anti-yellowing layer (3) is coated with a strengthening layer (4), the strengthening layer (4) is coated with a protective layer (5), the protective layer (5) includes a light-shielding coating (51) and a sunscreen coating (52) coated on the outside of the light-shielding coating (51), the bottom of the leather body (1) is provided with a reinforcing layer (6), the bottom of the reinforcing layer (6) is provided with a shock-absorbing layer (7), and the bottom of the shock-absorbing layer (7) is provided with a base cloth layer (8).

2. The light-resistant and yellowing-resistant leather according to claim 1, characterized in that: A plurality of grooves (11) are formed on the lower surface of the leather body (1) by hot pressing, and a plurality of tensile rib strips (71) are arranged on the upper surface of the shock-absorbing layer (7). The tensile rib strips (71) press a part of the reinforcing layer (6) into the grooves (11) and bond it inside the grooves (11).

3. The anti-light and yellowing-resistant leather according to claim 2, wherein: The reinforcing layer (6) is woven by warp and weft of a first reinforcing wire and a second reinforcing wire. The first reinforcing wire is twisted by a plurality of Kevlar fibers, and the second reinforcing wire is twisted by a plurality of polyester fibers.

4. The anti-light and yellowing-resistant leather according to claim 2, characterized in that: The shock-absorbing layer (7) is made of EVA, and the tensile rib strips (71) are made of rubber material.

5. The light-resistant and yellowing-resistant leather according to claim 4, characterized in that: A hollow hole (72) is arranged inside the shock-absorbing layer (7), and the hollow hole (72) is of an oval structure.

6. The anti-light and yellowing-resistant leather according to claim 1, characterized in that: The base cloth layer (8) includes a tensile-resistant layer (81) and an elastic layer (82) stitched and connected to the tensile-resistant layer (81). One side of the tensile-resistant layer (81) close to the elastic layer (82) is set as a concave-convex surface, one side of the elastic layer (82) close to the tensile-resistant layer (81) is set as a concave-convex surface, and the concave-convex surface on the tensile-resistant layer (81) fits with the concave-convex surface on the elastic layer (82).

7. An anti-light and yellowing-resistant leather according to claim 1, characterized in that: The anti-yellowing layer (3) is a polyurethane anti-yellowing resin layer.

8. An anti-light and yellowing-resistant leather according to claim 1, characterized in that: The strengthening layer (4) contains a high-elasticity super-soft resin layer (41) and a conductive fiber layer (42). The high-elasticity super-soft resin layer (41) is located above the anti-yellowing layer (3), and the conductive fiber layer (42) is located above the high-elasticity super-soft resin layer (41).

9. The light-resistant and yellowing-resistant leather according to claim 1, wherein: The light-shielding coating (51) is a light-shielding paint.

10. An anti-light and yellowing-resistant leather according to claim 1, characterized in that: The sunscreen coating (52) is a silver glue coating.

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