Leather shoulder strap and bag

Abstract

The utility model discloses a leather shoulder strap. The leather shoulder strap is of a flat long-strip-shaped structure. The front face and the back face of the leather shoulder strap are each provided with a transparent polyurethane wear-resisting layer. The applicant finds that the leather shoulder strap of the bag is a place easy to contact with the outside and is also a part easy to wear through research, so that the inner surface and the outer surface of the leather are coated with a polyurethane wear-resistant coating, the leather of the bag is effectively protected, the wear process of the shoulder strap is effectively prevented or slowed down, and the service life of the shoulder strap is prolonged. On the other hand, the polyurethane wear-resistant coating is transparent, the simple attractiveness of the leather is not affected, and the leather is good in decoration.

Description

Technical Field

[0001] The utility model relates to the technical field of leather goods, in particular to a leather shoulder strap and a bag. Background Art

[0002] Bags, including clutches and handbags, are one of the must-have items for women when they go out. After long-term use, leather bags will have different degrees of wear and tear at different locations, especially the shoulder straps and the bottom of the bag, which are the most worn areas. Slight wear on the leather surface affects the appearance. When the surface leather is worn out and the inner layer is exposed, especially the shoulder straps of the bag, users often discard it and no longer use it.

[0003] The Chinese utility model patent with announcement number CN220275111U discloses a shoulder strap for a shoulder bag, including a shoulder strap body, both ends of the shoulder strap body are provided with hooks for connecting with hooks, one end of the shoulder strap body is provided with a length adjustment device, and the length adjustment device is composed of a first shell, a second shell and a movable frame, a limit plate is provided on the inner side of the first shell, a spring column is provided in the middle of the second shell, a spring is sleeved on the outside of the spring column, and a press key is provided on the other side of the movable frame.

[0004] At present, the design of leather shoulder straps mainly focuses on aesthetics and practicality, mainly the optimization and improvement of styles, colors and hardware accessories. However, for leather shoulder straps, the existing technology cannot effectively provide protection for the shoulder straps, which are easy to wear and tear, affecting the beauty and service life of the bag. Utility Model Content

[0005] In order to overcome the above technical defects, the utility model provides a leather shoulder strap and a bag.

[0006] In order to solve the above problems, the utility model is implemented according to the following technical solutions:

[0007] In a first aspect, the utility model provides a leather shoulder strap, wherein the leather shoulder strap is a flat long strip structure;

[0008] The front and back sides of the leather shoulder strap are both provided with a transparent polyurethane wear-resistant layer.

[0009] In combination with the first aspect, the utility model further provides a first preferred implementation of the first aspect, specifically, the leather shoulder strap comprises a first leather layer, a second leather layer and a filling body, and the polyurethane wear-resistant layer is arranged on the outer surfaces of the first leather layer and the second leather layer;

[0010] The outer edge of the first leather layer and the outer edge of the second leather layer are connected by stitching, and a receiving space for receiving the filling body is formed between the first leather layer and the second leather layer.

[0011] In combination with the first aspect, the utility model also provides a second preferred implementation scheme of the first aspect. Specifically, the first leather layer includes a first waterproof and breathable layer, a first simulated leather layer, a first backing base fabric layer and a second waterproof and breathable layer sequentially bonded from top to bottom; the second waterproof and breathable layer is bonded to the filling body.

[0012] In combination with the first aspect, the utility model also provides a third preferred implementation scheme of the first aspect. Specifically, the second leather layer includes a third waterproof and breathable layer, a second simulated leather layer, a second backing base fabric layer and a fourth waterproof and breathable layer which are sequentially bonded from top to bottom; the fourth waterproof and breathable layer is bonded to the filling body.

[0013] In combination with the first aspect, the utility model also provides a fourth preferred implementation of the first aspect. Specifically, the first waterproof breathable layer, the second waterproof breathable layer, the third waterproof breathable layer and the fourth waterproof breathable layer are all made of thermoplastic polyurethane film with a thickness of 0.2 to 0.4 mm.

[0014] In combination with the first aspect, the utility model also provides a fifth preferred implementation of the first aspect. Specifically, the first back cover base fabric layer and the second back cover base fabric layer are both woven from bamboo / polyester fiber blended yarn and polypropylene staple fiber pure yarn.

[0015] In combination with the first aspect, the utility model further provides a sixth preferred embodiment of the first aspect, specifically, the first simulated leather layer and the second simulated leather layer use the same composite layer, and the composite layer includes an upper granular layer and a lower non-woven fabric that are tightly fitted;

[0016] The thickness of the upper particle layer is 0.3-0.6 mm, and the upper particle layer is formed by thermal transfer of polyurethane resin particles on a PET film, and the particle size of the polyurethane resin particles is 10-20 μm;

[0017] The lower non-woven fabric is formed by interweaving collagen fibers and polyester ultrafine fibers through a needle punching method.

[0018] In combination with the first aspect, the utility model also provides a seventh preferred implementation manner of the first aspect, specifically, the filling body is a flocking strip or a fiber strip, or a long strip product pressed from leather scraps.

[0019] In a second aspect, the utility model further provides a bag, comprising a bag body and the leather shoulder strap described in the first aspect, wherein the leather shoulder strap is connected to the bag body.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model provides a leather shoulder strap, which is a flat long strip structure; transparent polyurethane wear-resistant layers are arranged on the front and back sides of the leather shoulder strap.

[0022] The applicant has found through research that the leather shoulder strap of a bag is a place that is easily in contact with the outside and is also a part that is more easily worn. For this reason, the present technology coats a layer of polyurethane wear-resistant coating on the inner and outer surfaces of the leather bag, which effectively protects the leather bag, effectively prevents or slows down the wear process of the shoulder strap, and increases the service life of the bag. On the other hand, the polyurethane wear-resistant coating is transparent, does not affect the beauty of the leather bag, and has good decorative properties.

[0023] On the other hand, the polyurethane wear-resistant layer covers the entire surface of the leather shoulder strap and has a certain waterproof performance to prevent moisture from penetrating, avoid the growth of mold inside the leather shoulder strap, and increase the service life of the leather shoulder strap. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 It is a schematic diagram of the layer structure of the leather shoulder strap of the utility model;

[0026] Figure 2 It is a schematic diagram of the layer structure of the first leather layer of the utility model;

[0027] Figure 3 It is a schematic diagram of the layer structure of the second leather layer of the utility model;

[0028] In the figure:

[0029] 10-first leather layer, 11-first waterproof and breathable layer, 12-first simulated leather layer, 13-first backing base fabric layer, 14-second waterproof and breathable layer;

[0030] 20-second leather layer, 21-third waterproof breathable layer, 22-second simulated leather layer, 23-second backing base fabric layer, 24-third waterproof breathable layer;

[0031] 30-filling the body;

[0032] 40-Polyurethane wear layer. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0034] like Figure 1 to Figure 3 As shown, a preferred structure of a leather shoulder strap described in the utility model.

[0035] like Figure 1 As shown, the leather shoulder strap is a flat long strip structure; a transparent polyurethane wear-resistant layer 40 is provided on both the front and back sides of the leather shoulder strap.

[0036] The applicant has found through research that the leather shoulder strap of a bag is a place that is easily in contact with the outside and is also a part that is more easily worn. For this reason, the present technology coats a layer of polyurethane wear-resistant coating on the inner and outer surfaces of the leather strap to effectively protect the leather strap of the bag, effectively prevent or slow down the wear process of the shoulder strap, and improve the service life of the bag. On the other hand, the polyurethane wear-resistant coating is transparent and does not affect the beauty of the leather strap, and has good decorative properties. On the other hand, the polyurethane wear-resistant layer covers the surface of the entire leather strap and has a certain waterproof performance to prevent moisture from penetrating, avoid the growth of mold inside the leather strap, and improve the service life of the leather strap.

[0037] The leather shoulder strap comprises a first leather layer 10, a second leather layer 20 and a filling body 30, the outer edge of the first leather layer and the outer edge of the second leather layer are fixedly connected, and a receiving space for the filling body is formed between the first leather layer and the second leather layer. The polyurethane wear-resistant layer is arranged on the outer surfaces of the first leather layer and the second leather layer.

[0038] It should be noted that the polyurethane wear-resistant layer can be sprayed on the outer surface of the leather material for making the leather shoulder strap by using the polyurethane wear-resistant material, and then the leather material is cut and sewn into the shoulder strap. On the other hand, the coating technology also includes lamination, that is, applying a layer of adhesive on the leather material, covering it with a layer of transparent polyurethane wear-resistant film, heating and pressurizing to form a composite fabric; or the film itself is the adhesive material, which bonds the leather materials together; and then the leather material is cut and sewn into the bag bottom.

[0039] It should be noted that the polyurethane material used for the polyurethane wear-resistant layer 40 is a prior art polyurethane material that can be purchased commercially for use in fabrics.

[0040] It can be understood that the outer edges of the first leather layer and the second leather layer are connected by yarn stitching to form an integral leather shoulder strap, and the filling body is located between the first leather layer and the second leather layer.

[0041] The utility model provides a polyurethane wear-resistant layer on the outermost side of the leather shoulder strap to prevent moisture from being absorbed by the filling body when it penetrates, and to prevent moisture from accumulating in the filling body, thereby preventing the leather shoulder strap from being damaged by mold growth from the inside, thereby improving the service life of the leather shoulder strap.

[0042] In a specific implementation, the filling body is a flocking strip or a fiber strip, or a long strip product pressed from leather scraps. The cross section of the filling body can be a flat rectangle, or a circle, an ellipse, etc., which can be selected according to the bag design.

[0043] Among them, flocking is to fix short fibers (generally 0.03-0.5cm in length) vertically on a substrate coated with an adhesive to obtain a strip product. The characteristics of flocking are strong three-dimensional sense, soft touch, flatness and no gaps. On the other hand, fiber strips are a general term for continuous strip semi-finished products made of combed textile fibers without twisting. On the other hand, it can also be a long strip product pressed from leather scraps, or long strips of leather scraps can be directly used. After the scraps are crushed, they are made into continuous strip semi-finished products through viscose and equipment.

[0044] In a preferred embodiment, the first leather layer 10 includes a first waterproof breathable layer 11, a first simulated leather layer 12, a first backing base fabric layer 13 and a second waterproof breathable layer 14 which are sequentially attached from top to bottom; the second waterproof breathable layer is bonded to the filling body.

[0045] The second leather layer 20 includes a third waterproof breathable layer 21, a second simulated leather layer 22, a second backing base fabric layer 23 and a fourth waterproof breathable layer 24 which are sequentially attached from top to bottom; the fourth backing base fabric layer is bonded to the filling body.

[0046] In a specific implementation, the first back cover base fabric layer and the second back cover base fabric layer are both woven from bamboo / polyester fiber blended yarn and polypropylene staple fiber pure yarn.

[0047] This technology uses bamboo / polyester fiber blended yarn to make the backing base fabric. The purpose is to utilize the natural antibacterial, soft and warm properties of bamboo fiber. The bamboo / polyester fiber blended yarn has an antibacterial effect, avoiding the problem of mold growth due to moisture accumulation inside the shoulder strap, and then eroding the shoulder strap, and preventing mold growth inside the shoulder strap after being damp. On the other hand, the use of pure polypropylene staple fiber spinning makes the backing base fabric have better quick-drying and breathable properties to prevent moisture accumulation.

[0048] In a preferred embodiment, the first waterproof and breathable layer and the second waterproof and breathable layer are both made of a thermoplastic polyurethane film with a thickness of 0.2 to 0.4 mm. The thermoplastic polyurethane film effectively solves the problem of being both waterproof and breathable, and gives the product a soft feel and soft gloss on the surface, while significantly reducing production costs.

[0049] The design of two waterproof and breathable layers can greatly improve the waterproof performance of the front and back surfaces of the leather shoulder strap.

[0050] In another specific implementation, the first simulated leather layer and the second simulated leather layer are made of the same composite layer, and the composite layer includes an upper particle layer and a lower non-woven fabric layer that fit closely together;

[0051] The thickness of the lower particle layer is 0.3-0.6 mm. The lower particle layer is formed by thermal transfer of polyurethane resin particles onto a PET film. The particle size of the polyurethane resin particles is 10-20 μm. The lower non-woven fabric is formed by interweaving collagen fibers and polyester ultrafine fibers by needle punching.

[0052] The simulated leather layer 20 of the utility model is a non-woven fabric made of collagen fiber and polyester microfiber interwoven by needle punching. Collagen fiber and polyester microfiber are selected and processed by needle punching machinery to form a fiber mesh base material, which is green and environmentally friendly, and the mesh non-woven structure is more breathable. And through the compounding of polyester microfiber, the aging resistance, tensile strength, tear strength, elongation, flexibility and other properties of the simulated leather layer are improved, and the problem of low strength and low tear strength of collagen fiber non-woven fabric is solved. It is more conducive to the promotion of textile processing of waste leather collagen fiber.

[0053] The utility model also provides a bag, which comprises a bag body and a leather shoulder strap connected to the bag body.

[0054] For other structures of the leather shoulder strap and bag described in this embodiment, refer to the prior art.

[0055] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A leather shoulder strap, characterized in that: The leather shoulder strap is a flat long strip structure; The front and back sides of the leather shoulder strap are both provided with a transparent polyurethane wear-resistant layer.

2. A leather shoulder strap according to claim 1, characterized in that: The leather shoulder strap comprises a first leather layer, a second leather layer and a filling body, and the polyurethane wear-resistant layer is arranged on the outer surfaces of the first leather layer and the second leather layer; The outer edge of the first leather layer and the outer edge of the second leather layer are connected by stitching, and a receiving space for receiving the filling body is formed between the first leather layer and the second leather layer.

3. A leather shoulder strap according to claim 2, characterized in that: The first leather layer includes a first waterproof and breathable layer, a first simulated leather layer, a first backing base fabric layer, and a second waterproof and breathable layer which are sequentially attached from top to bottom; and the second waterproof and breathable layer is bonded to the filling body.

4. A leather shoulder strap according to claim 3, characterized in that: The second leather layer includes a third waterproof and breathable layer, a second simulated leather layer, a second backing base fabric layer and a fourth waterproof and breathable layer which are sequentially attached from top to bottom; the fourth waterproof and breathable layer is bonded to the filling body.

5. A leather shoulder strap according to claim 4, characterized in that: The first waterproof breathable layer, the second waterproof breathable layer, the third waterproof breathable layer and the fourth waterproof breathable layer are all made of thermoplastic polyurethane film with a thickness of 0.2 to 0.4 mm.

6. A leather shoulder strap according to claim 5, characterized in that: The first back cover base fabric layer and the second back cover base fabric layer are both woven from bamboo / polyester fiber blended yarn and polypropylene staple fiber pure yarn.

7. A leather shoulder strap according to claim 4, characterized in that: The first simulated leather layer and the second simulated leather layer are made of the same composite layer, and the composite layer includes an upper granular layer and a lower non-woven fabric layer that are tightly fitted; The thickness of the upper particle layer is 0.3-0.6 mm, and the upper particle layer is formed by thermal transfer of polyurethane resin particles on a PET film, and the particle size of the polyurethane resin particles is 10-20 μm; The lower non-woven fabric is formed by interweaving collagen fibers and polyester ultrafine fibers through a needle punching method.

8. A leather shoulder strap according to claim 2, characterized in that: The filling body is a flocking strip or a fiber strip, or a long strip product pressed from leather scraps.

9. A bag, characterized in that: The bag comprises a bag body and a leather shoulder strap according to any one of claims 1 to 8, wherein the leather shoulder strap is connected to the bag body.

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