A method for manufacturing a leather workpiece

Abstract

The present invention discloses a method for manufacturing a leather processed part, which comprises the following steps: arranging a light-transmitting intermediate layer on a first light-transmitting substrate; using a plurality of threads to sew the first light-transmitting substrate and the light-transmitting intermediate layer, forming a plurality of thread holes H after the first light-transmitting substrate and the light-transmitting intermediate layer are sewed, and forming a stitch line SL at the position of the thread hole H; forming a first adhesive layer on the side of the light-transmitting intermediate layer relative to the second light-transmitting substrate, or forming a first adhesive layer on the second light-transmitting substrate; applying pressure to fix the first light-transmitting substrate and the light-transmitting intermediate layer, and making the second light-transmitting substrate adhere to the light-transmitting intermediate layer by means of the first adhesive layer; fixing a circuit board on the second light-transmitting substrate, and arranging a light-emitting element group on the circuit board. The present invention provides a leather processed part suitable for emitting light at the stitching, which can produce a light-emitting effect while maintaining the appearance by improving the structural design of the leather processed part and the corresponding manufacturing method thereof, and makes the leather processed part have better ornamental properties.

Description

Technical Field

[0001] The invention relates to the technical field of leather products, in particular to a method for manufacturing a leather processed part. Background Art

[0002] Generally speaking, the surface of existing leather accessories is generally not processed through complicated processes. Usually, a light-emitting sheet or a fluorescent sheet is attached to the surface of the leather, so that the surface produces a specific pattern after being illuminated to improve the ornamental value of the leather accessories. However, the brightness that can be produced by the light-emitting sheet or the fluorescent sheet is low, and most environments cannot meet the lighting conditions. Another improved way to make leather accessories glow is to embed LEDs on the leather surface. Although embedding LEDs on the leather surface can increase the brightness of the light, it affects the appearance of the leather accessories, which makes it unacceptable to most consumers. Therefore, it is necessary to improve it. Summary of the invention

[0003] In view of the shortcomings of the prior art, an object of the present invention is to provide a method for manufacturing a leather processed part.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: a method for manufacturing a leather processed part, which comprises the following steps:

[0005] S100, disposing a light-transmitting intermediate layer on a first light-transmitting substrate;

[0006] S110, using a plurality of threads to sew the first light-transmitting substrate and the light-transmitting intermediate layer, so that a plurality of thread holes H are formed after the first light-transmitting substrate and the light-transmitting intermediate layer are sewed together, and stitches SL are formed at the positions of the thread holes H;

[0007] S120, forming a first adhesive layer on a side of the light-transmitting intermediate layer opposite to the second light-transmitting substrate, or forming a first adhesive layer on the second light-transmitting substrate;

[0008] S130, applying pressure to fix the first light-transmitting substrate and the light-transmitting intermediate layer, and laminating the second light-transmitting substrate on the light-transmitting intermediate layer via the first adhesive layer;

[0009] S140, a circuit board is fixed on the second light-transmissive substrate, a light-emitting element group is arranged on the circuit board, and an illumination light beam emitted by the light-emitting element group passes through the first adhesive layer, the wire holes H and the wire bodies in sequence, so that the leather workpiece emits light at the seam SL.

[0010] In a further technical solution, the following steps are also included:

[0011] S150, disposing a first fixing member at the tail end of the leather workpiece away from the stitching line, and passing the first light-transmitting substrate, the light-transmitting middle layer, the first adhesive layer and the second light-transmitting substrate through the first fixing member.

[0012] In a further technical solution, in step S120, at least the following two steps are specifically included:

[0013] S121, forming a first adhesive layer on a side of the light-transmitting intermediate layer opposite to the first light-transmitting substrate;

[0014] S122, forming a second adhesive layer 400 on a side of the second light-transmitting substrate opposite to the light-transmitting intermediate layer.

[0015] In a further technical solution, the second light-transmissive substrate is extended to provide an accommodation space S, and the circuit board and the light-emitting element group are both arranged in the accommodation space S.

[0016] In a further technical solution, the light-transmitting intermediate layer is extended away from one end of the seam line SL and bent to the inner side of the accommodating space S, and is extended and bonded to the second light-transmitting substrate through the first adhesive layer.

[0017] In a further technical solution, the second light-transmissive substrate is arranged in an H shape, so that the accommodating space S is arranged as an accommodating space S1 and an accommodating space S2, and the circuit board and the light-emitting element group are both arranged in the accommodating space S1.

[0018] In a further technical solution, the circuit board is fixed to the second light-transmitting substrate via a columnar structure or a third adhesive layer.

[0019] In a further technical solution, in step S100, the following steps are specifically included:

[0020] S101, configuring the first light-transmitting substrate into a first sub-light-transmitting substrate and a second sub-light-transmitting substrate,

[0021] S102, preparing the light-transmitting intermediate layer into a first sub-light-transmitting intermediate layer and a second sub-light-transmitting intermediate layer,

[0022] S103, by providing a third light-transmitting substrate, the first sub-light-transmitting intermediate layer and the second sub-light-transmitting intermediate layer are fixed together.

[0023] In a further technical solution, in the step S100, a groove G is provided in the third light-transmitting substrate, and the first sub-light-transmitting substrate and the second sub-light-transmitting substrate respectively have a bending structure BS at the tail end near the stitching line SL, and the bending structures BS of the first sub-light-transmitting substrate and the second sub-light-transmitting substrate are respectively supported in the groove G of the third light-transmitting substrate.

[0024] In a further technical solution, in step S110, the first sub-transparent substrate, the first sub-transparent intermediate layer and the third transparent substrate are sewn together with a first thread, and the second sub-transparent substrate, the second sub-transparent intermediate layer and the third transparent substrate are sewn together with a second thread.

[0025] After adopting the above structure, the advantages of the present invention compared with the prior art are:

[0026] The present invention provides a leather processed part suitable for emitting light at the seams. By improving the structural design of the leather processed part and its corresponding manufacturing method, a luminous effect can be produced while maintaining the appearance, and the leather processed part has better ornamental properties. In addition, the first light-transmitting substrate and the light-transmitting intermediate layer of the present invention are sewn together with thread to form seams, and in the specific production process, seam patterns of different patterns can be sewn according to user needs, thereby meeting the diverse needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the steps of a method for manufacturing a leather processed part according to the present invention;

[0029] Figure 2 It is a more specific step schematic diagram of the method for manufacturing a leather processed part according to the present invention;

[0030] Figure 3 It is a structural schematic diagram of the first light-transmitting substrate, the light-transmitting intermediate layer, and the first adhesive layer of the first specific embodiment of the leather processed part manufactured by the manufacturing method of the present invention;

[0031] Figure 4 It is a schematic structural diagram of the second adhesive layer and the second light-transmitting substrate of the first specific embodiment of the leather workpiece manufactured by the manufacturing method of the present invention;

[0032] Figure 5 is a structural schematic diagram of a second specific embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0033] Figure 6 is a structural schematic diagram of a third specific embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0034] Figure 7 is a structural schematic diagram of a fourth embodiment of a leather workpiece manufactured by the manufacturing method of the present invention;

[0035] Figure 8 is a structural schematic diagram of a fifth embodiment of a leather workpiece manufactured by the manufacturing method of the present invention;

[0036] Fig. 9 is a structural schematic diagram of a sixth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0037] Fig.10 is a partial structural schematic diagram of a sixth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0038] Fig.11 is a structural schematic diagram of a seventh embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0039] Fig.12 is a structural schematic diagram of an eighth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0040] Fig.13 is a schematic structural diagram of a ninth embodiment of a leather workpiece manufactured by the manufacturing method of the present invention;

[0041] Fig.14 is a partial structural schematic diagram of a ninth embodiment of a leather workpiece manufactured by the manufacturing method of the present invention;

[0042] Fig.15 is a schematic structural diagram of a tenth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0043] Fig.16 is a structural schematic diagram of an eleventh embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0044] Fig.17 is a structural schematic diagram of a twelfth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0045] Fig.18 is a structural schematic diagram of a thirteenth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0046] Fig.19 is a structural schematic diagram of a fourteenth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0047] Fig. 20 is a structural schematic diagram of a fifteenth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0048] Fig.21 is a structural schematic diagram of a sixteenth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0049] Fig. 22 is a structural schematic diagram of a seventeenth embodiment of a leather processed article manufactured by the manufacturing method of the present invention;

[0050] Fig.23is a structural schematic diagram of an eighteenth embodiment of a leather workpiece manufactured by the manufacturing method of the present invention;

[0051] Fig.24 is a structural schematic diagram of a nineteenth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0052] Fig.25 is a structural schematic diagram of a twentieth embodiment of a leather processed part manufactured by the manufacturing method of the present invention;

[0053] Fig.26 It is a schematic flow chart of the manufacturing method corresponding to the twelfth to twentieth embodiments of the leather processed part;

[0054] Fig. 27 is a schematic structural diagram of a twenty-first embodiment of a leather processed article manufactured by the manufacturing method of the present invention;

[0055] Fig.28 is a schematic structural diagram of a twenty-second embodiment of a leather workpiece manufactured by the manufacturing method of the present invention;

[0056] Fig.29 It is a schematic structural diagram of the twenty-third embodiment of the leather processed part manufactured by the manufacturing method of the present invention. DETAILED DESCRIPTION

[0057] The following are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

[0058] like Figures 1 to 26 As shown, the present invention provides a method for manufacturing a leather processed part, which comprises the following steps:

[0059] S100, disposing a light-transmitting intermediate layer 200 on a first light-transmitting substrate 100;

[0060] S110, using a plurality of threads 800 to sew the first light-transmitting substrate 100 and the light-transmitting intermediate layer 200, so that a plurality of thread holes H are formed after the first light-transmitting substrate 100 and the light-transmitting intermediate layer 200 are sewed together, and stitches SL are formed at the positions of the thread holes H;

[0061] S120, forming a first adhesive layer 300 on a side of the light-transmitting intermediate layer 200 opposite to the second light-transmitting substrate 500, or forming a first adhesive layer 300 on the second light-transmitting substrate 500;

[0062] S130, applying pressure to fix the first light-transmitting substrate 100 and the light-transmitting intermediate layer 200, and attaching the second light-transmitting substrate 500 to the light-transmitting intermediate layer 200 via the first adhesive layer 300;

[0063] S140, a circuit board 600 is fixed on the second light-transmissive substrate 500, and a light-emitting element group 700 is arranged on the circuit board 600. An illumination light beam emitted by the light-emitting element group 700 passes through the first adhesive layer 300, the wire holes H and the wire bodies 800 in sequence, so that the leather workpiece emits light at the stitching line SL.

[0064] The method further includes the following steps: S150, arranging a first fixing member 1000 at the tail end of the leather workpiece away from the suture SL, and passing the first light-transmitting substrate 100, the light-transmitting intermediate layer 200, the first adhesive layer 300 and the second light-transmitting substrate 500 through the first fixing member 1000. Specifically, the first fixing member 1000 includes but is not limited to a nail, and the first fixing member 1000 passes through the first light-transmitting substrate 100, the light-transmitting intermediate layer 200, the first adhesive layer 300 and the second light-transmitting substrate 500. By arranging the first fixing member 1000 on the side of the leather workpiece away from the suture SL, the leather workpiece can be prevented from wrinkling or warping, so that the leather workpiece has a better appearance.

[0065] Wherein, in step S120, specifically including at least the following two steps:

[0066] S121, forming a first adhesive layer 300 on a side of the light-transmitting intermediate layer 200 opposite to the first light-transmitting substrate 100;

[0067] S122 , forming a second adhesive layer 400 on a side of the second light-transmitting substrate 500 opposite to the light-transmitting intermediate layer 200 .

[0068] That is to say, the second adhesive layer 400 is bonded to the side of the second light-transmitting substrate 500 facing the light-transmitting intermediate layer 200, the first adhesive layer 300 is bonded to the side of the light-transmitting intermediate layer 200 facing the second light-transmitting substrate 500, and the second adhesive layer 400 is bonded to the first adhesive layer 300 so that the second light-transmitting substrate 500 and the light-transmitting intermediate layer 200 are bonded together. At this time, the first adhesive layer 300 and the second adhesive layer 400 are preferably single-sided transparent adhesive, such as water-based transparent adhesive.

[0069] Of course, in another embodiment, the first adhesive layer 300 is selected to be a transparent light-transmitting double-sided adhesive, that is, the second adhesive layer 400 in the leather workpiece is omitted, thereby reducing the number of processes and further reducing costs.

[0070] More specifically, in the present invention, the second light-transmissive substrate 500 may be extended to have an accommodation space S, and the circuit board 600 and the light-emitting element group 700 may be disposed in the accommodation space S.

[0071] For example, Figure 3-Figure 4In a feasible embodiment, the second light-transmissive substrate 500 is C-shaped to form a receiving space S, and the circuit board 600 and the light-emitting element group 700 are disposed in the receiving space S.

[0072] Another example Figure 5-Figure 6 In another feasible implementation, the second light-transmitting substrate 500 is configured to be H-shaped, so that the accommodating space S is configured as an accommodating space S1 and an accommodating space S2, and the circuit board 600 and the light-emitting element group 700 are both disposed in the accommodating space S1.

[0073] In a further embodiment, the light-transmitting intermediate layer 200 is extended away from one end of the stitching line SL and bent to the inner side of the accommodating space S, and is extended and bonded to the second light-transmitting substrate 500 through the first adhesive layer 300. Obviously, such an assembly method makes the connection stability of the leather workpiece better and avoids degumming of the second light-transmitting substrate 500.

[0074] In a further embodiment, the circuit board 600 is fixed to the second light-transmitting substrate 500 through a columnar structure 900, wherein the columnar structure 900 includes but is not limited to screws or angle clamps. Of course, the installation method of the circuit board 600 in the present invention is not limited to the above embodiment. For example, the circuit board 600 can also be bonded to the second light-transmitting substrate 500 through a third adhesive layer 1100, wherein the third adhesive layer 1100 is, for example, water-based transparent glue. By providing the third adhesive layer 1100, the provision of the columnar structure 900 can be reduced, simplifying the overall structure.

[0075] In order to better explain the working principle of the present invention, Figure 2-Figure 6 As shown, the present invention also provides a leather workpiece for emitting light at seams, including a first light-transmitting substrate 100 , a light-transmitting intermediate layer 200 , a first adhesive layer 300 , a second light-transmitting substrate 500 , a circuit board 600 , a light-emitting element group 700 and a wire body 800 .

[0076] Among them, the first light-transmitting base, the light-transmitting middle layer 200, the first adhesive layer 300 and the second light-transmitting substrate 500 are arranged in sequence from top to bottom; and the first light-transmitting substrate 100 and the light-transmitting middle layer 200 have a thread hole H, and the thread body 800 passes through the thread hole H to sew the first light-transmitting substrate 100 and the light-transmitting middle layer 200 into one, and a stitch line SL is formed at the position of the thread hole H, and the second light-transmitting substrate 500 is bonded to the light-transmitting middle layer 200 by the first adhesive layer 300; the circuit board 600 is fixed on the second light-transmitting substrate 500; the light-emitting element group 700 is arranged on the circuit board 600 to emit an illumination light beam; the illumination light beam emitted by the light-emitting element group 700 passes through the first adhesive layer 300 and is emitted from the thread hole H, so that the leather workpiece emits light at the stitch line SL.

[0077] The present invention provides a leather workpiece suitable for luminous seams. By improving the structural design of the leather workpiece, a luminous effect can be produced while maintaining the appearance, and the leather workpiece has better ornamental properties. In addition, the first light-transmitting substrate 100 and the light-transmitting intermediate layer 200 of the present invention are sewn together by a thread 800 to form a seam. In the specific production process, seam patterns of different patterns can be sewn according to user needs to meet the diverse needs of users.

[0078] In this embodiment, the first light-transmitting substrate 100 is configured as a PU (polyurethane) leather layer, a PVC (polyvinyl chloride) leather layer or a genuine leather layer.

[0079] In this embodiment, the light-transmitting intermediate layer 200 is configured as a light-transmitting optical foam layer or an optically transparent silicone layer. The light-transmitting intermediate layer 200 can improve the touch of the leather workpiece. When the light-transmitting intermediate layer 200 is selected as optically transparent silicone, the high light transmittance of the optically transparent silicone can improve the luminous intensity of the leather workpiece, thereby reducing the number of light sources provided in the light-emitting element group 700, thereby reducing costs.

[0080] In the present embodiment, the material of the second light-transmitting substrate 500 includes transparent polycarbonate (PC), transparent acrylonitrile butadiene styrene (ABS), transparent polymethyl methacrylate (PMMA), translucent polycarbonate, translucent acrylonitrile butadiene styrene or translucent polymethyl methacrylate, but the present invention is not limited thereto.

[0081] In the present embodiment, the circuit board 600 is, for example, a printed circuit board (PCB) 600 or a flexible printed circuit board (FPC) 600. The light-emitting element group 700 is, for example, composed of a single or multiple light-emitting diodes (LED) or sub-millimeter light-emitting diodes (MINI LED). The light-emitting element group 700 can emit white light, red light, green light, blue light or a combination thereof. The light sources in the light-emitting element group 700 can emit light simultaneously or sequentially, for example, to form effects such as breathing lights and running lights.

[0082] In this embodiment, the wire 800 may be a cotton thread or a nylon fluorescent thread.

[0083] In the above-mentioned manufacturing method, the present invention also provides another more specific variant embodiment:

[0084] For example, in step S100, the following steps are specifically included:

[0085] S101, configuring the first light-transmitting substrate 100 into a first sub-light-transmitting substrate 110 and a second sub-light-transmitting substrate 120,

[0086] S102, preparing the light-transmitting intermediate layer 200 into a first light-transmitting intermediate layer 210 and a second light-transmitting intermediate layer 220,

[0087] S103 , by disposing a third light-transmitting substrate 1200 , the first light-transmitting sub-intermediate layer 210 and the second light-transmitting sub-intermediate layer 220 are fixed together.

[0088] In a further technical solution, in the step S100, a groove G is provided in the third light-transmitting substrate 1200, and the first sub-light-transmitting substrate 110 and the second sub-light-transmitting substrate 120 respectively have a bending structure BS at the tail end near the stitching line SL, and the bending structures BS of the first sub-light-transmitting substrate 110 and the second sub-light-transmitting substrate 120 are respectively supported in the groove G of the third light-transmitting substrate 1200.

[0089] In a further technical solution, in the step S110, the first thread 800 is used to sew the first sub-transparent substrate 110, the first sub-transparent intermediate layer 210 and the third translucent substrate 1200, and the second thread 800 is used to sew the second sub-transparent substrate 120, the second sub-transparent intermediate layer 220 and the third translucent substrate 1200.

[0090] Here, the present invention provides a specific solution of a leather processed part manufactured by the above-mentioned embodiment, such as Figure 7-Figure 8 As shown, in this embodiment, the main difference between this leather processed piece and the leather processed piece in the first embodiment is that in this embodiment, the leather processed piece further includes a third light-transmitting substrate 1200 .

[0091] In the present embodiment, the first light-transmitting substrate 100 includes a first sub-light-transmitting substrate 110 and a second sub-light-transmitting substrate 120. The light-transmitting intermediate layer 200 includes a first sub-light-transmitting intermediate layer 210 and a second sub-light-transmitting intermediate layer 220. The third light-transmitting substrate 1200 has a groove G on the side facing the first light-transmitting substrate 100, wherein the light-transmitting intermediate layer 200 is arranged between the first light-transmitting substrate 100 and the third light-transmitting substrate 1200. The first sub-light-transmitting substrate 110 and the second sub-light-transmitting substrate 120 respectively have a bending structure BS near the tail end of the stitching line SL. The bending structure BS rests on the groove G of the third light-transmitting substrate 1200 to fix the spacing between the first sub-light-transmitting substrate 110 and the second sub-light-transmitting substrate 120 to avoid uneven patterns formed by the light-transmitting holes.

[0092] In this embodiment, the leather processed part includes a plurality of second fixing members 1300, so that the plurality of second fixing members 1300 pass through the first sub-transparent intermediate layer 210, the first sub-transparent substrate 110, the second sub-transparent substrate 120 and the second sub-transparent intermediate layer 220 at adjacent positions of the bending structure BS; the second fixing members 1300 referred to here have the same function as the first fixing members 1000 described in the above embodiment, so they will not be described one by one here.

[0093] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A method for manufacturing a leather workpiece, characterized in that: The following steps are involved: S100, disposing a light-transmitting intermediate layer (200) on a first light-transmitting substrate (100); S110, using a plurality of threads (800) to sew the first light-transmitting substrate (100) and the light-transmitting intermediate layer (200), wherein a plurality of thread holes H are formed between the first light-transmitting substrate (100) and the light-transmitting intermediate layer (200) after being sewed, and stitches SL are formed at the positions of the thread holes H; S120, forming a first adhesive layer (300) on a side of the light-transmitting intermediate layer (200) opposite to the second light-transmitting substrate (500), or forming a first adhesive layer (300) on the second light-transmitting substrate (500); S130, applying pressure to fix the first light-transmitting substrate (100) and the light-transmitting intermediate layer (200), and laminating the second light-transmitting substrate (500) on the light-transmitting intermediate layer (200) via the first adhesive layer (300); S140, a circuit board (600) is fixedly mounted on the second light-transmissive substrate (500), a light-emitting element group (700) is disposed on the circuit board (600), and an illumination light beam emitted by the light-emitting element group (700) sequentially passes through the first adhesive layer (300), the wire holes H, and the wire bodies (800), so that the leather workpiece emits light at the seam line SL.

2. The method for manufacturing a leather workpiece according to claim 1, characterized in that: The method further includes the following steps: S150, disposing a first fixing member (1000) at the tail end of the leather workpiece away from the stitching line SL, and passing the first light-transmitting substrate (100), the light-transmitting intermediate layer (200), the first adhesive layer (300) and the second light-transmitting substrate (500) through the first fixing member (1000).

3. The method for manufacturing a leather workpiece according to claim 1, characterized in that: In step S120, at least the following two steps are specifically included: S121, forming a first adhesive layer (300) on a side of the light-transmitting intermediate layer (200) opposite to the first light-transmitting substrate (100); S122, forming a second adhesive layer 400 on a side of the second light-transmitting substrate (500) opposite to the light-transmitting intermediate layer (200).

4. The method for manufacturing a leather workpiece according to claim 1, characterized in that: The second light-transmissive substrate (500) is extended to provide an accommodation space S, and the circuit board (600) and the light-emitting element group (700) are both arranged in the accommodation space S.

5. The method for manufacturing a leather workpiece according to claim 4, characterized in that: The light-transmitting intermediate layer (200) is extended away from one end of the seam line SL and bent to the inner side of the accommodating space S, and is extended and bonded to the second light-transmitting substrate (500) through the first adhesive layer (300).

6. The method for manufacturing a leather workpiece according to claim 4, characterized in that: The second light-transmissive substrate (500) is arranged in an H shape, so that the accommodation space S is arranged as an accommodation space S1 and an accommodation space S2, and the circuit board (600) and the light-emitting element group (700) are both arranged in the accommodation space S1.

7. The method for manufacturing a leather workpiece according to claim 1, characterized in that: The circuit board (600) is fixed on the second light-transmitting substrate (500) via a columnar structure (900) or a third adhesive layer (1100).

8. The method for manufacturing a leather workpiece according to claim 1, characterized in that: In step S100, the following steps are specifically included: S101, configuring the first light-transmitting substrate (100) into a first sub-light-transmitting substrate (110) and a second sub-light-transmitting substrate (120), S102, preparing the light-transmitting intermediate layer (200) into a first sub-light-transmitting intermediate layer (210) and a second sub-light-transmitting intermediate layer (220), A first sub-light-transmitting intermediate layer (210) is disposed on the first sub-light-transmitting substrate (110), and a second sub-light-transmitting intermediate layer (220) is disposed on the second sub-light-transmitting substrate (120). S103, by arranging a third light-transmitting substrate (1200), the first sub-light-transmitting intermediate layer (210) and a second sub-light-transmitting intermediate layer (220) are fixed together.

9. The method for manufacturing a leather workpiece according to claim 8, characterized in that: In the step S100, a groove G is provided in the third light-transmitting substrate (1200), and a bending structure BS is respectively provided in the first sub-light-transmitting substrate (110) and the second sub-light-transmitting substrate (120) near the tail end of the stitching line SL, and the bending structures BS of the first sub-light-transmitting substrate (110) and the second sub-light-transmitting substrate (120) are respectively supported in the groove G of the third light-transmitting substrate (1200).

10. The method for manufacturing a leather workpiece according to claim 9, characterized in that: In the step S110, the first sub-light-transmitting substrate (110), the first sub-light-transmitting intermediate layer (210) and the third light-transmitting substrate (1200) are sewn together with the first thread (800), and the second sub-light-transmitting substrate (120), the second sub-light-transmitting intermediate layer (220) and the third light-transmitting substrate (1200) are sewn together with the second thread (800).

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