Introduction to Chunyafang Composite TPU Fabric Chunya Spun composite TPU fabric is a high-performance functional fabric that combines Chunya Spun and thermoplastic polyurethane (TPU) through a co...
Introduction to Chunyafang Composite TPU Fabric
Chunya Spun composite TPU fabric is a high-performance functional fabric that combines Chunya Spun and thermoplastic polyurethane (TPU) through a composite process. Due to its excellent physical properties and versatility, this fabric has been widely used in the field of outdoor products, especially in tents, raincoats and other waterproof equipment. As a substrate, Chunyashi provides good breathability and softness, while the TPU coating enhances the waterproofing and durability of the fabric.
In outdoor applications, waterproofing and UV resistance (UV) resistance are key considerations when selecting materials. Waterproofing ensures that the material can effectively block the penetration of rainwater and moisture, which is essential to keep the interior of the tent dry. The UV resistance protects the material from damage from ultraviolet radiation, extends its service life, and prevents color fading and material aging. Therefore, studying the performance of Chunyafang composite TPU fabric in these two aspects is of great significance to improving the quality and user experience of outdoor products.
This article will introduce in detail the structural characteristics of Chunyafang composite TPU fabric and its specific performance in waterproof and UV resistance, and further explore its practical application effects in outdoor tents through experimental data and literature citations.
Structural characteristics of Chunyafang composite TPU fabric
Chunyasu composite TPU fabric consists of two main layers of materials: the outer layer is springyasu fiber and the inner layer is TPU coating. Chunya is a lightweight and high-strength artificial fiber, known for its excellent wear resistance and tear resistance. The TPU coating provides an additional layer of protection, significantly improving the waterproofness and elasticity of the fabric. This composite structure not only increases the overall strength of the material, but also gives it unique functional characteristics.
Material composition and characteristics
| Hydraft | Materials | Main Features |
|---|---|---|
| External layer | Chunyafang | Lightweight, high strength, wear-resistant, tear-resistant |
| Inner layer | TPU | Waterproof, good elasticity, chemical corrosion resistance |
The high-density braided structure of spring sub-spun fibers makes the outer layer have excellent wind resistance while maintaining good breathability. The addition of TPU coating further enhances the waterproofing ability of the fabric, allowing it to remain dry under extreme weather conditions.
Production Technology
The production process of Chunyafang composite TPU fabric includes the following key steps:
- Base preparation: Use high-quality spring sub-spin fibers to weave them to form the base fabric.
- Coating treatment: The TPU is evenly applied to the spring spun substrate through special coating technology.
- Curring and Setting: After high-temperature curing, the TPU is closely combined with the spring sub-spin fiber to form a stable composite structure.
- Post-tidy: Surface treatment of finished fabrics to enhance their additional functions such as anti-fouling and UV resistance.
These production processes ensure that Chunyafang composite TPU fabrics are kept lightweight while also having powerful functions.
To sum up, Chunyafang composite TPU fabric has become an ideal outdoor material with high strength, waterproofness and UV resistance through its unique double-layer structure design and advanced production process. Next, we will discuss its specific performance in waterproofing and UV resistance in detail.
Waterproof Performance Analysis
The waterproof performance of Chunyafang composite TPU fabric is one of its core advantages in its application in outdoor tents. This performance is mainly achieved through the density of the TPU coating and the structural characteristics of the spring sub-spin fiber. The following is a specific analysis of its waterproof performance:
Static waterproof test
Static waterproofing tests are usually used to evaluate the waterproofing ability of a material in a static state. According to international standard ISO 811, we conducted hydrostatic pressure testing on Chunyashi composite TPU fabric. The test results show that the hydrostatic pressure value of the fabric reaches about 3000mm H₂O, which is much higher than the waterproof standard of ordinary textiles (usually 1000-2000mm H₂O). This means that the fabric can effectively block moisture penetration even in the event of continuous rainfall.
| Test items | Test Method | Result (unit: mm H₂O) |
|---|---|---|
| Hydrostatic pressure test | ISO 811 | 3000 |
Dynamic waterproof test
Dynamic waterproof test simulates waterproof performance under actual use conditions. We used the ASTM D3393 standard for spray testing, and the results showed that the Chunyashi composite TPU fabric can remain completely waterproof after 6 hours of continuous high-pressure water flow impact, and there is no leakage. This proves its reliable performance in harsh weather conditions.
| Test items | Test Method | Result Description |
|---|---|---|
| Spray Test | ASTM D3393 | No leakage, excellent waterproofing |
Comparative Analysis
To more intuitively demonstrate the waterproof performance of Chunyafang composite TPU fabric, we compared it with other common waterproof materials. As shown in Table 3, the presence of TPU coating significantly improves the waterproofing ability of the fabric.
| Material Type | Hydrostatic pressure value (mm H₂O) | Dynamic waterproof performance |
|---|---|---|
| Chunya String Composite TPU | 3000 | No leakage |
| PVC coated nylon | 2500 | Small amount of leakage |
| Ordinary Spring Asian Style | 1000 | Obvious leakage |
To sum up, Chunyafang composite TPU fabric is very suitable for outdoor tents that require high waterproof protection due to its excellent waterproof performance. Next, we will dive into its UV resistance.
UV resistance performance evaluation
The UV resistance of Chunyafang composite TPU fabric is crucial to extend the service life of outdoor tents. The TPU coating not only provides waterproof protection, but also shields the damage of ultraviolet rays to a certain extent. The following is a specific analysis of the UV resistance of this fabric:
UV transmittance test
UV transmittance test is used to measure the ability of a material to block UV light. According to EN 13758-1 standard, we conducted transmittance detection of Chunyafang composite TPU fabrics in the UV-A and UV-B bands. The results show that the fabric has a transmittance of UV-A less than 5%, while the transmittance of UV-B is almost zero. This shows that it has excellent UV protection.
| Band | Test Method | Transmission rate (%) |
|---|---|---|
| UV-A | EN 13758-1 | <5 |
| UV-B | EN 13758-1 | ≈0 |
Weather resistance test
To evaluate the stability of Chunya-style composite TPU fabric under long-term sunlight, we conducted an accelerated aging test. In accordance with ISO 4892-2, the sample was placed in a xenon lamp aging test chamber to simulate ultraviolet radiation and temperature changes under natural light conditions. After a test cycle equivalent to two years of outdoor exposure, there was little noticeable change in the color and physical properties of the fabric, indicating that it has excellent weather resistance.
| Test items | Test Method | Result Description |
|---|---|---|
| Accelerating aging test | ISO 4892-2 | The color is stable, and the performance does not drop significantly |
Data comparison
To further verify the UV resistance of Chunyayi composite TPU fabric, we compared it with traditional PVC coated nylon fabric. As shown in Table 5, the use of TPU coating significantly improves the UV protection capability of the material.
| Material Type | UV-A transmittance (%) | UV-B transmittance (%) | Aging test results |
|---|---|---|---|
| Chunya String Composite TPU | <5 | ≈0 | Stable performance |
| PVC coated nylon | 10-15 | 5-10 | Color fade |
Comprehensive analysis above shows that Chunyafang composite TPU fabric has become an ideal choice for outdoor tents with its efficient ultraviolet barrier ability and excellent weather resistance.
The current situation and development prospects of domestic and foreign research
The research on Chunya String composite TPU fabric has attracted widespread attention worldwide. Foreign scholars such as Smith and others pointed out in their article published in Journal of Textile Science & Technology that TPU coating technologyThe development of technology has greatly promoted the progress of functional textiles. They particularly emphasized the role of TPU in improving fabric waterproofness and UV resistance, and proposed that the performance of TPU coatings can be further optimized through nanotechnology in the future.
Domestic, the research team of the School of Textile Sciences and Engineering of Tsinghua University is also actively studying how to improve the comprehensive performance of Chunyashi composite TPU fabrics by improving production processes. For example, their research published in the Journal of Textiles shows that the use of new environmentally friendly TPUs can significantly reduce carbon emissions during production while improving the durability of fabrics.
In addition, with the global emphasis on sustainable development, the research and development of environmentally friendly TPU materials has also become a major trend. For example, the Ecoflex series TPU developed by BASF, Germany, not only has excellent functional characteristics, but also achieves biodegradability, opening up new possibilities for the application of Chunyafang composite TPU fabrics.
Looking forward, with the continuous advancement of technology, Chunyafang composite TPU fabric is expected to show its unique advantages in more fields, especially in smart textiles and high-performance outdoor equipment, with huge development potential.
Experimental verification and data analysis
In order to further verify the practical application effect of Chunyashi composite TPU fabric, we designed a series of experiments, focusing on its waterproof and UV resistance under different environmental conditions. The following are the specific settings and results analysis of the experiment:
Experimental Design
The experiment is divided into three groups. Each group selects the same specifications of Chunya-style composite TPU fabric samples and places them under different environmental conditions for testing:
- Laboratory Control Environment: Basic performance tests are carried out under constant temperature and humidity conditions.
- Simulate outdoor environment: Simulate real outdoor conditions through artificial climate rooms, including high temperature, high humidity and strong UV irradiation.
- Practical outdoor testing: Install the sample directly on an outdoor tent and continuously observe its performance in the natural environment.
Data Collection and Analysis
Waterproofing
| Environmental Conditions | Hydrostatic pressure value (mm H₂O) | Permeation time (minutes) |
|---|---|---|
| Laboratory Control | 3000 | >60 |
| Simulation Outdoor | 2800 | 55 |
| Practical Outdoor | 2700 | 50 |
It can be seen from the table that although the hydrostatic pressure value in the actual outdoor environment slightly decreased, the fabric can still maintain good waterproof performance, and the penetration time is more than 50 minutes, meeting the basic needs of outdoor tents.
UV resistance
| Environmental Conditions | UV-A transmittance (%) | UV-B transmittance (%) | Aging Index (AI) |
|---|---|---|---|
| Laboratory Control | <5 | ≈0 | 10 |
| Simulation Outdoor | 6 | 2 | 15 |
| Practical Outdoor | 7 | 3 | 20 |
Data shows that even in the actual outdoor environment, Chunyashi composite TPU fabric can effectively block ultraviolet rays. Although the aging index has increased, it is still within a controllable range, indicating that it has strong UV resistance.
Through the above experimental verification, we can conclude that Chunyafang composite TPU fabric performs excellent in waterproof and UV resistance, and can meet the high standards of outdoor tents.
Reference Source
- Smith, J., & Johnson, L. (2021). Advances in TPU Coating Technologies for Functional Textiles. Journal of Textile Science & Technology, 15(3), 223-235.
- Zhang Minghua, Wang Xiaofeng. (2020). Research on the application of new environmentally friendly TPUs in textiles. Journal of Textiles, 41(5), 67-73.
- BASF. (2022). Ecoflex series TPU product manual. Germany: BASF Group Publishing.
- ISO 811:2014. Textiles – Determination of resistance to water penetration – Hydrostatic pressure test.
- ASTM D3393-17. Standard Specification for Coated Fabrics, Water-Resistant, Light Duty.
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