PU spliced embroidery vamp

Abstract

This utility model relates to the field of semi-finished shoe upper technology, and proposes a PU spliced ​​embroidered shoe upper to solve the problem of the split appearance of PU splicing. It includes a shoe upper base layer, and a first PU sheet is provided at the lower left and right sides of the shoe upper base layer. The first PU sheet is hot-pressed and fixed to the shoe upper base layer. The boundary trajectory between the first PU sheet and the shoe upper base layer is a concave hot-pressed groove. The outer side of the hot-pressed groove is lower than the surface of the shoe upper base layer. The surface layer of the first PU sheet is frosted. Several grooves communicating with the hot-pressed groove are hot-pressed on the first PU sheet.

Description

Technical Field

[0001] This utility model relates to the field of semi-finished shoe upper technology, and in particular to a PU spliced ​​embroidered shoe upper. Background Technology

[0002] In the current footwear design landscape, the combination of PU material and traditional fabrics is gradually becoming a popular trend. However, while the current mainstream stitching technique achieves a physical connection between the PU leather and the upper, it exposes many undeniable shortcomings in visual presentation, with the core issue being a severe sense of visual disjointedness. The stitching method where PU leather is directly applied to the upper creates a clearly visible "material break" and layering. Due to the differences in gloss and texture between PU leather and the upper fabric, a distinct visual boundary is formed at the seam, disrupting the overall cohesiveness of the upper.

[0003] This design was conceived to enhance the overall look of the PU shoe upper. Utility Model Content

[0004] Therefore, in view of the above problems, this utility model proposes a PU spliced ​​embroidered shoe upper to solve the problem of the split feeling of PU splicing.

[0005] To solve the above-mentioned technical problems, the solution adopted by this utility model is as follows: a PU spliced ​​embroidered shoe upper, including a shoe upper base layer, wherein a first PU sheet is provided at the lower left and right sides of the shoe upper base layer, characterized in that: the first PU sheet is hot-pressed and fixed to the shoe upper base layer, the boundary trajectory between the first PU sheet and the shoe upper base layer is a concave hot-pressed groove, the outer side of the hot-pressed groove is lower than the surface of the shoe upper base layer, the surface layer of the first PU sheet is frosted, and a plurality of grooves communicating with the hot-pressed groove are hot-pressed on the first PU sheet.

[0006] A further improvement is that a second PU sheet is provided on the shoe upper base layer at the opening of the shoe tongue. The second PU sheet is hot-pressed and fixed to the shoe upper base layer. The thickness of the second PU sheet gradually decreases from the side edge of the shoe tongue to the side edge of the shoe upper. The surface layer of the second PU sheet has a frosted surface.

[0007] A further improvement is that: the upper middle part of the shoe upper base layer is provided with a first stitch in an inverted V shape towards both sides of the shoe tongue opening, and the left and right sides of the upper part of the shoe upper base layer are respectively provided with a second stitch at a distance from the first stitch.

[0008] A further improvement is that the first and second embroidery sections are machine-embroidered with embroidery thread along a predetermined pattern.

[0009] A further improvement is that a third reinforcing part in the shape of a V is provided on the left and right sides of the base layer of the shoe upper at the free end of the first embroidery, and a fourth reinforcing part is provided below the third reinforcing part.

[0010] A further improvement is that the third reinforcing part includes two PU threads, which are V-shaped and spaced vertically. Embroidery lines are sewn between the two PU threads, and the PU threads are fixed to the shoe upper base layer by alternating left and right sewing of transparent nylon threads.

[0011] A further improvement is that the fourth reinforcing part consists of several rope embroidery trajectory lines.

[0012] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0013] 1. In traditional stitching processes, PU leather and the shoe upper form a distinct layer. This solution, however, utilizes a concave structure design for the heat-pressing groove, making the outer surface of the groove lower than the base layer of the upper. This transforms the boundary between the first PU piece and the base layer from a "harsh joint" to a "natural transition," completely minimizing the layering and creating a more harmonious fusion of the two materials, significantly improving the overall visual unity of the shoe upper. The surface of the first PU piece is matte, reducing the reflectivity of the PU material. Simultaneously, several grooves formed by heat pressing on the first PU piece and connected to the heat-pressing groove further reduce the protrusion of the first PU piece, resulting in a smoother overall appearance after stitching.

[0014] 2. The surface of the second PU piece is also matte. The thickness of the second PU piece gradually decreases from the edge of the tongue to the edge of the upper, which weakens the protrusion of the second PU piece and the upper and enhances the tensile strength of the upper and tongue.

[0015] 3. The first and second embroidery sections on the base of the shoe upper are machine-embroidered along a predetermined pattern using embroidery thread. The first embroidery section is in the shape of an inverted V, and the second embroidery section is located on both sides of the V. The overall coverage is large, and the pattern is simple and elegant, which helps to prevent the shoe upper from deforming during wear.

[0016] 4. The V-shaped third reinforcement and the lower fourth reinforcement focus on the stress areas on the left and right sides of the shoe upper. Through the composite structure that combines the rigidity of PU thread with the toughness of needle and rope embroidery, the shoe upper’s wrapping and support performance for the foot is greatly improved. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of a PU spliced ​​embroidered shoe upper according to an embodiment of this utility model.

[0018] Figure 2 This is a front view structural diagram of a PU spliced ​​embroidered shoe upper according to an embodiment of this utility model.

[0019] Figure 3 This is an enlarged view of a partial structure of a PU spliced ​​embroidered shoe upper according to an embodiment of this utility model. Detailed Implementation

[0020] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0021] refer to Figures 1 to 3 This utility model discloses a PU spliced ​​embroidered shoe upper, including a shoe upper base layer 10. A first PU sheet 11 is provided at the lower left and right sides of the shoe upper base layer 10. The first PU sheet 11 is hot-pressed and fixed onto the shoe upper base layer 10. The boundary between the first PU sheet 11 and the shoe upper base layer 10 forms a concave hot-pressed groove 12. The outer surface of the hot-pressed groove 12 is lower than the surface of the shoe upper base layer 10. The surface layer of the first PU sheet 11 has a frosted finish. Several grooves 13 communicating with the hot-pressed groove 12 are hot-pressed onto the first PU sheet 11. The concave structure of the hot-pressed groove 12, which is lower than the surface of the shoe upper base layer 10, eliminates the layering effect between the PU sheet and the shoe upper surface, thus weakening the boundary effect. Simultaneously, the frosted finish eliminates the glossiness of the PU sheet, and the grooves 13 weaken the protrusion of the first PU sheet 11, further reducing the glossiness of the PU. A second PU sheet 14 is provided on the shoe upper base layer 10 at the shoe tongue opening. The second PU sheet 14 is hot-pressed and fixed to the shoe upper base layer 10. The thickness of the second PU sheet 14 gradually decreases from the side edge of the shoe tongue opening to the side edge of the shoe upper. The surface layer of the second PU sheet 14 has a frosted surface.

[0022] The upper center of the shoe upper base layer 10 is provided with a first embroidery section 15 in an inverted V-shape towards both sides of the shoe tongue opening to enhance the design of the shoe upper. The left and right sides of the upper end of the shoe upper base layer 10 are respectively provided with second embroidery sections 16 at a distance from the first embroidery section 15 to further enhance the design of the shoe upper. The first embroidery section 15 and the second embroidery section 16 are machine-embroidered with embroidery thread along a predetermined pattern.

[0023] On the left and right sides of the shoe upper base layer 10, at the free ends of the first embroidery, are respectively provided a V-shaped third reinforcing part 17, and a fourth reinforcing part 18 is provided below the third reinforcing part 17. The third reinforcing part 17 includes two PU threads 19, which are V-shaped and spaced vertically. Embroidery tracks 20 are sewn between the two PU threads 19. The PU threads 19 are alternately sewn and fixed to the shoe upper base layer 10 by transparent nylon thread. The fourth reinforcing part 18 consists of three rope embroidery tracks.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions above are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A PU-stitched embroidered shoe upper, comprising a shoe upper base layer, wherein a first PU sheet is disposed at the lower left and right sides of the shoe upper base layer, characterized in that: The first PU sheet is hot-pressed and fixed onto the shoe upper base layer. The boundary trajectory between the first PU sheet and the shoe upper base layer forms a concave hot-pressed groove. The outer side of the hot-pressed groove is lower than the surface of the shoe upper base layer. The surface layer of the first PU sheet is frosted. Several grooves communicating with the hot-pressed groove are hot-pressed onto the first PU sheet.

2. The PU spliced ​​embroidered shoe upper according to claim 1, characterized in that: A second PU sheet is provided on the base layer of the shoe upper at the opening of the shoe tongue. The second PU sheet is hot-pressed and fixed to the base layer of the shoe upper. The thickness of the second PU sheet gradually decreases from the side edge of the shoe tongue to the side edge of the shoe upper. The surface layer of the second PU sheet has a frosted surface.

3. A PU patchwork embroidered shoe upper according to claim 1 or 2, characterized in that: The upper middle part of the shoe upper base layer is provided with a first stitch in an inverted V shape towards both sides of the shoe tongue opening, and the left and right sides of the upper part of the shoe upper base layer are respectively provided with a second stitch at a distance from the first stitch.

4. The PU spliced ​​embroidered shoe upper according to claim 3, characterized in that: The first and second stitches are machine-stitched with embroidery thread along a predetermined pattern.

5. The PU spliced ​​embroidered shoe upper according to claim 4, characterized in that: The left and right sides of the shoe upper base layer are respectively provided with a third reinforcing part in the shape of a V at the free end of the first embroidery, and a fourth reinforcing part is provided below the third reinforcing part.

6. The PU spliced ​​embroidered shoe upper according to claim 5, characterized in that: The third reinforcing part includes two PU threads, which are V-shaped and spaced vertically. Embroidery lines are sewn between the two PU threads. The PU threads are fixed to the shoe upper base layer by alternating left and right sewing of transparent nylon threads.

7. The PU spliced ​​embroidered shoe upper according to claim 6, characterized in that: The fourth reinforcing part consists of several rope embroidery trajectory lines.

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