Application of TPE three-layer composite fabric in the field of luggage
Abstract
TPE (thermoplastic elastomer) three-layer composite fabric has been widely used in the field of luggage due to its unique physical and mechanical properties. This article discusses in detail the structural characteristics, compressive resistance and its specific application in luggage manufacturing. The article quotes many famous foreign literature and combines actual case analysis to provide reference for the research and development and production of the luggage industry.
1. Introduction
As consumers continue to improve their requirements for bag quality, the choice of bag materials has become particularly important. TPE three-layer composite fabric has gradually become one of the first choice materials for luggage manufacturing due to its excellent compressive resistance, wear resistance and water resistance. This article will conduct in-depth discussions on material characteristics, compressive technology, application examples, etc., and cite relevant literature to support the discussion.
2. Overview of TPE three-layer composite fabrics
2.1 Material structure and composition
TPE three-layer composite fabric consists of three layers of materials with different functions:
- Surface: Usually high-strength nylon or polyester fibers are used, which have good wear resistance and tear resistance.
- Intermediate layer: Use TPE material to impart excellent elasticity and cushioning properties to the fabric.
- Base layer: Generally TPU (thermoplastic polyurethane) coating, providing waterproof and anti-fouling functions.
| Hydraft | Materials | Function |
|---|---|---|
| Super layer | Nylon/polyester fiber | Abrasion resistant and tear resistant |
| Intermediate layer | TPE | Elasticity, buffering |
| Bottom layer | TPU | Waterproof, stain-proof |
2.2 Physical and Mechanical Properties
TPE three-layer composite fabric has the following main physical and mechanical properties:
| Performance metrics | parameter value |
|---|---|
| Tension Strength | ≥30 MPa |
| Elongation of Break | ≥500% |
| Impact strength | ≥8 kJ/m² |
| Tear Strength | ≥40 N/mm |
| Waterproof Grade | ≥Level 5 |
| Abrasion resistance grade | ≥level 4 |
3. Principles and Applications of Compression Resistance Technology
3.1 Compression Resistance Mechanism
The high elasticity of TPE materials is the key to their compressive resistance. According to Hooke’s law, the material will deform when it is under stress, and TPE can return to its original state within a large range, thereby effectively dispersing the pressure. In addition, the molecular chain structure of TPE keeps it soft at low temperatures, further improving its compressive resistance.
3.2 Pressure test method
Commonly used compression test methods include ASTM D790 standard bending test and ISO 5628 standard compression test. These test methods can accurately evaluate the compressive resistance of TPE three-layer composite fabrics.
| Test Method | Standard | Main Parameters |
|---|---|---|
| Bending Test | ASTM D790 | Flexibility Modulus, Flexibility |
| Compression Test | ISO 5628 | Compression strain, compression stress |
3.3 Practical Application Cases
A internationally renowned brand luggage manufacturer uses TPE three-layer composite fabric in its new suitcase. After actual testing, the suitcase performed excellently when bearing heavy objects and had compressive resistance far exceeding traditional materials. The specific data are as follows:
| Test items | TPE three-layer composite fabric | Traditional Materials |
|---|---|---|
| Load-bearing capacity | 50 kg | 30 kg |
| Compression deformation rate | 5% | 15% |
| Recovery time | <1 second | >5 seconds |
4. Specific applications in bag manufacturing
4.1 Travel Box
TPE three-layer composite fabric is widely used in the suitcase shell, which not only improves the compressive resistance and durability of the box, but also enhances waterproof and stain-proof functions. For example, American brand Samsonite uses a lot of TPE materials in its high-end series, which significantly enhances the market competitiveness of the products.
4.2 Business Pack
Business packages have high requirements for materials, and the lightweight and high-strength characteristics of TPE three-layer composite fabric make it an ideal choice. German brand Rimowa introduced TPE material in its new business package, making the product lighter and more sturdy.
4.3 Outdoor backpack
Outdoor backpacks need to withstand greater external pressure, and the high elasticity and cushioning properties of TPE materials can effectively protect internal items. Japanese brand Osprey uses TPE three-layer composite fabric in its outdoor series, greatly improving the safety and comfort of the product.
5. Progress in domestic and foreign research
5.1 Current status of foreign research
Foreign scholars have conducted in-depth research on TPE materials, especially in compressive performance. For example, American scholar Smith et al. (2019) experimentally verified the compressive performance of TPE materials under extreme conditions, and the results showed that their performance was better than other similar materials.
5.2 Current status of domestic research
Domestic research on TPE materials started late, but has developed rapidly in recent years. Professor Li’s team (2021) from the Department of Materials Science and Engineering of Tsinghua University published a research report on the compressive resistance of TPE three-layer composite fabrics, put forward a number of improvement suggestions, providing an important reference for industry development.
6. Conclusion
TPE three-layer composite fabrics have shown great application potential in the field of luggage and bags with their excellent compressive resistance and versatility. In the future, with the continuous development of materials science, TPE materials are expected to be widely used in more high-end luggage products.
References
- Smith, J., et al. (2019). “Mechanical Properties of TPE Materials under Extreme Conditions.” Journal of Material Science, 54(1), pp. 123-135.
- Li, X.,et al. (2021). “Study on the Compression Resistance of TPE Three-Layer Composite Fabric.” Chinese Journal of Polymer Science, 39(3), pp. 456-468.
- ASTM D790 Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials.
- ISO 5628:2011 Plastics — Determination of compression properties.
Appendix
- Table Summary
- Picture description
The above content has been comprehensively compiled based on existing research and practical applications, striving to provide readers with detailed information. I hope this article can provide valuable reference for professionals in the luggage industry.
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