Sports vest lower hem structure
The sports vest hem structure uses ultrasonic welding and hot melt adhesive layers to bond fabrics, addressing unstable quality issues through stable and aesthetically enhanced fabric joints.
Patent Information
- Application Number
- CN202323377368.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-12
AI Technical Summary
Existing clothing manufacturing processes face issues with unstable quality due to manual sewing of different fabrics, leading to variations in thread quality and aesthetics.
A hem structure for sports vests using ultrasonic welding and hot melt adhesive layers to bond fabrics, with a U-shaped hem fabric wrapping an elastic band, enhancing stability and aesthetics.
The solution provides a traceless connection that improves fabric joint stability and aesthetics, eliminating quality variations caused by manual sewing.
Smart Images

Figure CN222194242U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sports vests, in particular to a hem structure of a sports vest. Background Art
[0002] In the current clothing manufacturing industry, when making clothing including tops, underwear, and panties, it is often necessary to combine different fabrics into a piece of clothing according to wearing needs and the characteristics of different fabrics. In the market, different fabrics are generally sewn together, which requires manual operation and will lead to unstable quality due to differences in people's technical levels and differences in thread quality. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the above technical problems and provide a sports vest hem structure.
[0004] In order to solve the above technical problems, the technical solution provided by the utility model is: a hem structure of a sports vest, including an outer layer of fabric, an inner layer of fabric, a hem fabric, an elastic band, a first hot melt adhesive layer, a second hot melt adhesive layer, and a third hot melt adhesive layer. The outer layer of fabric and the inner layer of fabric are bonded by hot melt adhesive, and the hem fabric and the elastic band are bonded by hot melt adhesive. The edges of the four fabrics, the outer layer of fabric, the inner layer of fabric, the hem fabric, and the elastic band, are combined by ultrasonic welding technology, and the elastic band is wrapped in the hem fabric.
[0005] Furthermore, the cross-section of the hem fabric is U-shaped, and the elastic band is located inside it.
[0006] Furthermore, one side of the hem fabric close to the inner layer fabric is higher than the other side, and is bonded to the inner layer fabric by hot melt adhesive.
[0007] Compared with the prior art, the utility model has the following advantages: ultrasonic welding technology is used to connect fabrics, which can achieve traceless connection, improve aesthetics, avoid quality differences caused by manual sewing, and cooperate with the hot-melt adhesive layer to reinforce the fabric joints and fix the position of the elastic band. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 The utility model is a schematic diagram of the longitudinal section structure of the hem structure of a sports vest.
[0009] As shown in the figure: 1. Outer layer of fabric; 2. Inner layer of fabric; 3. Hem fabric; 4. Elastic band; 5. First hot melt adhesive layer; 6. Second hot melt adhesive layer; 7. Third hot melt adhesive layer. DETAILED DESCRIPTION
[0010] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0011] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0012] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0013] In conjunction with the accompanying drawings, a hem structure of a sports vest includes an outer fabric 1, an inner fabric 2, a hem fabric 3, an elastic band 4, a hot melt adhesive layer 5, a hot melt adhesive layer 6, and a hot melt adhesive layer 7. The outer fabric 1 and the inner fabric 2 are bonded to each other through the hot melt adhesive layer 5, and the hem fabric 3 and the elastic band 4 are bonded to each other through the hot melt adhesive layer 6. The edges of the four fabrics, the outer fabric 1, the inner fabric 2, the hem fabric 3, and the elastic band 4, are bonded by ultrasonic welding technology, and the elastic band 4 is wrapped in the hem fabric 3.
[0014] The cross section of the hem fabric 3 is U-shaped, and the elastic band 4 is located inside the hem fabric 3 .
[0015] One side of the hem fabric 3 close to the inner layer fabric 2 is higher than the other side, and the hem fabric and the inner layer fabric 2 are bonded to each other via a first hot melt adhesive layer 7 .
[0016] In the specific implementation of the utility model, hot melt double-sided adhesive is placed at the bottom edge between the inner and outer fabrics, and hot pressing and fixing are performed; in addition, hot melt double-sided adhesive is placed between the hem fabric and the side of the elastic band close to the outer fabric, and hot pressing and fixing are performed; the edges after the hem fabric and the elastic band are bonded are aligned with the bottom edges of the inner and outer fabrics, and the two parts are welded by ultrasonic welding technology. The hem fabric is U-shaped and wraps the elastic band inside it. Since the side of the hem fabric close to the inner fabric is higher than the side of the outer fabric, the surface of the hem fabric in contact with the inner fabric can be fixed and bonded by hot pressing by placing hot melt double-sided adhesive.
[0017] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A sports vest hem structure, comprising an outer layer of fabric (1), an inner layer of fabric (2), a hem fabric (3), an elastic band (4), a first hot melt adhesive layer (5), a second hot melt adhesive layer (6), and a third hot melt adhesive layer (7), characterized in that: The outer layer fabric (1) and the inner layer fabric (2) are bonded together by a first hot melt adhesive layer (5), the hem fabric (3) and the elastic band (4) are bonded together by a second hot melt adhesive layer (6), and the edges of the four fabrics, namely the outer layer fabric (1), the inner layer fabric (2), the hem fabric (3) and the elastic band (4), are connected by ultrasonic welding technology, and the elastic band (4) is wrapped in the hem fabric (3).
2. The sports vest hem structure according to claim 1, characterized in that: The cross section of the hem fabric (3) is U-shaped, and the elastic band (4) is located inside the hem fabric.
3. A sports vest hem structure according to claim 1 or 2, characterized in that: One side of the hem fabric (3) close to the inner fabric (2) is higher than the other side, and the hem fabric (3) and the inner fabric (2) are bonded together via a third hot-melt adhesive layer (7).
