Technical analysis of high-performance four-sided composite TPU fleece fabric

Analysis of high-performance four-sided elastic composite TPU fleece fabric technology

1. Introduction

High-performance four-sided elastic composite TPU fleece fabric is a multifunctional textile material that combines elasticity, waterproofness and warmth. It is widely used in outdoor sports clothing, casual clothing and household products. As consumers’ demand for functional fabrics continues to grow, this fabric has attracted much attention for its outstanding performance and diverse application prospects. This article will conduct in-depth analysis from its structural composition, production process, performance characteristics and practical applications, and will help readers to fully understand the technical connotation of this advanced material by citing famous foreign literature and technical data.

In the modern textile industry, the research and development of functional fabrics has become one of the core driving forces for the development of the industry. As one of the best among the high-performance four-sided elastic composite TPU fleece fabric, it not only inherits the soft and comfortable characteristics of traditional fleece, but also realizes the waterproof and breathable function through the composite TPU film. At the same time, it uses four-sided elastic technology to give the fabric better Elasticity and fit. These characteristics make it an ideal choice to meet the needs of a diverse market. Next, we will discuss from multiple dimensions to gradually reveal the mystery behind this innovative material.

2. Structural composition and material characteristics

High-performance four-sided composite TPU fleece fabric consists of three main structures: the outer layer is high-density polyester fiber fabric, the middle layer is thermoplastic polyurethane (TPU) film, and the inner layer is specially treated fleece Material. The following are the specific functions and their interactions of each layer:

1. External high-density polyester fiber fabric
   The outer layer is woven with high strength, wear-resistant polyester fibers, and has excellent tear resistance and weather resistance. This material can effectively resist the influence of the external environment, such as ultraviolet radiation, wind and sand erosion, etc., thereby extending the service life of the fabric.

2. Intermediate layer TPU film
   TPU film is the core component of this fabric, which provides critical waterproof and breathable properties. TPU is a thermoplastic elastomer with good flexibility and chemical stability. According to a study by Dupont (Dupont, 2019), the microporous structure of TPU films can allow water vapor molecules to pass through while blocking the penetration of liquid water, thereby achieving waterproof and breathable effects under dynamic equilibrium.

3. Inner fleece material
   Fleece is a wool-processed knitted fabric known for its soft feel and excellent warmth. Research by the German Textile Research Institute (DITF, 2020) shows that the velvet layer on the surface of the ferment can form an air insulation layer, which significantly improves theThe insulation effect of the lever fabric while maintaining good breathability.

In addition, in order to achieve the “four-side elastic” effect, elastic fibers (such as spandex or nylon elastic yarn) are added to the weft and weft direction of the fabric. This design allows the fabric to provide uniform ductility in all directions, improving comfort and freedom of movement during wear.

3. Production process

The production of high-performance four-sided elastic composite TPU fleece fabric involves multiple complex processes, including spinning, weaving, coating, composite and post-organization. The following is a detailed introduction to the specific process flow:

1. Spinning and Weaving
   First, use high-quality polyester fiber and elastic fiber to mix spinning to ensure that the yarn has sufficient strength and elasticity. Subsequently, the yarn is woven into a high-density base cloth using a circular machine or a warp knitting machine. Toray Japan (2021) pointed out in its technical report that optimizing fabric structure is crucial to improving the overall performance of the fabric.

2. TPU coating and composite
   A uniform TPU film is coated on one side of the base cloth, usually done by solution or melt extrusion. The coated base cloth needs to be shaped at high temperature to enhance adhesion between the TPU and the fabric. An experiment at the University of Manchester, UK (Manchester University, 2022) found that appropriate adjustment of the coating thickness can reduce the impact on fabric flexibility while ensuring waterproofing.

3. Fleece wool wool treatment
   The production of inner fleece requires multiple mechanical bristles and hair shearing processes to form a uniform fleece layer. Research by the Samsung Advanced Technology Research Institute (SAIT, 2020) in South Korea shows that controlling lint density and length is particularly important for improving the warmth performance of fabrics.

4. Post-organization and testing
   Afterwards, a series of post-organization processes are carried out on the finished fabric, such as anti-static treatment, anti-fouling treatment and dimensional stabilization treatment. All products also need to undergo rigorous physical and chemical testing to ensure that they comply with international standards (such as ISO 811 waterproof test and ASTM F1670 blood penetration test).

IV. Performance characteristics analysis

High-performance four-sided elastic composite TPU fleece fabric shows many superior performance characteristics thanks to its unique structural design and advanced production process. The following is a detailed analysis from several key aspects:

1. Waterproof and breathable performance
   According to research by the University of British Columbia, Canada (UBC, 2021), the microporous structure of TPU films can achieve efficient gas exchange while maintaining waterproofing. Laboratory data shows that the waterproofing level of the fabric can reach more than 5000mm, while the moisture permeability remains at around 5000g/m²·24h.

2. Elasticity and Comfort
   The application of four-sided elastic technology enables the fabric to show good ductility in the horizontal, vertical and oblique directions, and the large elongation can reach more than 40%. This feature not only improves the wearing experience, but also reduces fabric deformation problems caused by movement.

3. Heat protection performance
   The air insulation effect of the inner layer of the fleece has been significantly improvedThe warmth of the fabric. American outdoor brand The North Face mentioned in its product manual that the fabric has a warm index of about 30% higher than that of ordinary polyester fabrics.

4. Durability and environmental protection
   The high-density polyester outer layer and TPU coating give the fabric strong resistance to wear and aging, while its recyclable characteristics are also in line with the modern green manufacturing concept.

V. Practical application fields

High-performance four-sided elastic composite TPU fleece fabric has been widely used in many fields due to its excellent comprehensive performance:

1. Outdoor Sports Clothing
   This type of fabric is widely used in ski suits, mountaineering suits and trail running equipment, and can effectively deal with challenges in extreme weather conditions.

2. Casual Clothing
   In daily life, this fabric is often used in jackets, sweatshirts and trousers, which is both fashionable and practical.

3. Household Products
   Its soft and comfortable touch and good warmth also make it an ideal material for bedding kits and carpets.

4. Medical Protection
   departmentThe modified version of TPU composite fabric is also used in surgical gowns and isolation gowns, providing an additional protective barrier.

Reference Source

1. Dupont (2019). “Advances in TPU Film Technology for Textile Applications.” Wilmington, DE: DuPont Corporation.
2. DITF (2020). “Thermal Insulation Properties of Fleece Fabrics.” Dresden, Germany: German Institute of Textile and Fiber Research.
3. Toray (2021). “Innovative Spinning Techniques for Enhanced Fabric Performance.” Tokyo, Japan: Toray Industries.
4. Manchester University (2022). “Optimizing Coating Thickness in TPU Composite Fabrics.” Manchester, UK: School of Materials.
5. SAIT (2020). “Mechanical Properties of Brushed Fleece Fabrics.” Seoul, South Korea: Samsung Advanced Institute of Technology.
6. UBC (2021). “Waterproof Breathable Fabrics: A Review of Microstructure Design.” Vancouver, Canada: University of British Columbia.
7. The North Face (2022). “Product Manual: Advanced Insulation Series.” San Leandro, CA: The North Face Inc.

Extended reading: https://www.china-fire-retardant.com/post/9581.html” >https://www.china-fire-retardant.com/post/9581. html
Extended reading: https://www.alltextile.cn/product/product -13-298.html
Extended reading: https://www.brandfabric.net/ottoman-pongee-coated-breathable-fabric/
Extended reading: https://www.alltextile.cn/product/product-36-562.html
Extended reading: https://www.tpu-ptfe.com/post/9321.html
Extended reading: a href=”https://www.tpu-ptfe.com/post/3295.html” >https://www.tpu-ptfe.com/post/3295.html
Extended reading: https://www.alltextile.cn/product/product-46-125.html