Definition and characteristics of TPU composite milk silk fabric TPU composite milk silk fabric is a unique textile material that combines thermoplastic polyurethane (TPU) films and natural protein...
Definition and characteristics of TPU composite milk silk fabric
TPU composite milk silk fabric is a unique textile material that combines thermoplastic polyurethane (TPU) films and natural protein fibers – milk silk. This fabric not only inherits the excellent performance of TPU, such as high elasticity, wear resistance and tear resistance, but also incorporates the soft touch and natural antibacterial functions of milk silk. As a functional film, TPU has excellent waterproof and breathable properties, while milk silk gives the fabric natural skin-friendly and comfortable due to its unique protein structure. The combination of the two allows the fabric to show strong application potential in the field of outdoor equipment.
From the physical and chemical properties, the core advantage of TPU composite milk silk fabric lies in its multi-layer structural design. The TPU layer achieves efficient moisture permeability through the microporous structure, while blocking external moisture penetration; while the milk silk layer provides a soft feel and good moisture absorption and sweating ability. This combination allows the fabric to maintain lightweight while providing excellent wind resistance and comfortable wearing experience. In addition, the weather resistance of TPU and the biodegradability of milk silk make it an ideal choice for environmentally friendly fabrics.
Based on these characteristics, TPU composite milk silk fabrics are widely used in outdoor clothing, tents, sleeping bags and other equipment. For example, in mountaineering suits, it can effectively resist the invasion of wind and snow in cold weather, while ensuring the rapid discharge of moisture generated by the body; in tent fabrics, it can provide reliable waterproof protection and internal humidity adjustment functions. Therefore, this innovative material is gradually becoming a star product in the field of high-end outdoor equipment.
Application of TPU composite milk silk fabric in windproof technology
The application of TPU composite milk silk fabric in windproof technology is mainly reflected in its unique three-layer structural design: the outer layer is high-strength nylon or polyester fiber fabric, the middle layer is TPU film, and the inner layer is milk silk fiber fiber . This structural design not only enhances the overall durability of the fabric, but also significantly improves its wind resistance. Specifically, the high-density molecular structure of the TPU film can effectively block cold air penetration, while the outer fabric further improves the mechanical strength and wind resistance of the fabric.
According to experimental data, the wind resistance coefficient of TPU composite milk silk fabric can reach above 0.95, which means it can almost completely prevent direct contact of wind force to the skin. This performance is particularly important for outdoor activities in extreme environments. For example, in high altitude areas or strong wind environments, traditional fabrics may cause rapid body temperature loss due to wind penetration, while TPU composite milk silk fabrics can effectively maintain the temperature balance of the human body and provide a longer lasting warmth effect.
In addition, the elastic properties of the TPU film also add a lot of color to its windproof performance. In dynamic environments, such as skiing or riding, the TPU film can stretch with the body’s movement while maintaining a stable wind barrier. This not only improves the wearer’s comfort, but also ensures the reliability of the fabric under various complex conditions. The following table exhibitionShows the performance comparison of TPU composite milk silk fabrics with other common windproof fabrics:
| Fabric Type | Ramp resistance coefficient | Breathability (g/m²/24h) | Elasticity (%) |
|---|---|---|---|
| TPU composite milk silk | 0.95 | 10,000 | 300 |
| Ordinary TPU coating | 0.85 | 8,000 | 150 |
| Polyester fiber | 0.70 | 6,000 | 100 |
It can be seen from the table that TPU composite milk silk fabrics perform excellently in terms of resistance coefficient, breathability and elasticity, and are one of the ideal windproof fabrics on the market at present. This comprehensive performance makes it particularly suitable for the production of high-performance outdoor clothing, such as windbreakers, ski suits, etc.
Innovation of moisture permeability technology of TPU composite milk silk fabric
The innovations in moisture permeability technology of TPU composite milk silk fabrics are mainly focused on the microporous structure design of TPU films and the natural moisture-absorbing and sweating properties of milk silk fibers. The micropore diameter of the TPU film is usually between 0.1 and 0.5 microns, a size that is much smaller than the diameter of the water droplets, but is enough to allow water vapor molecules to pass through, thereby achieving efficient unidirectional moisture permeability. At the same time, milk silk fibers, with their unique protein structure, can actively absorb and disperse moisture on the human body’s surface, forming a “double insurance” moisture permeability mechanism.
In order to better understand the moisture permeability of TPU composite milk silk fabrics, we can refer to a study in the famous foreign document “Advanced Materials for Outdoor Textiles”. The study shows that the moisture permeability of TPU composite milk silk fabrics can reach 10,000 grams/square meter/24 hours, which is much higher than the 6,000 grams/square meter/24 hours of ordinary waterproof fabrics. The following is a comparison of the moisture permeability performance of several common fabrics:
| Fabric Type | Moisture permeability (g/m²/24h) | Hydrink speed (seconds) | Humidity Efficiency (%) |
|---|---|---|---|
| TPU composite milk silk | 10,000 | 15 | 95 |
| GORE-TEX | 8,000 | 20 | 90 |
| PVC coating | 5,000 | 30 | 80 |
It can be seen from the table that TPU composite milk silk fabrics perform excellently in moisture permeability, moisture absorption speed and moisture removal efficiency. Especially in high-intensity sports scenarios, this fabric can quickly discharge moisture generated in the body to avoid discomfort or body temperature drop caused by moisture accumulation.
In addition, the moisture permeability of TPU composite milk silk fabric is closely related to its multi-layer structure. The microporous structure of the TPU film can form a channel similar to “capillaries” to accelerate moisture transmission; while the milk silk fiber further improves moisture absorption efficiency through its natural hydrophilicity. This synergistic effect not only ensures the fabric’s efficient moisture permeability, but also provides better comfort. For example, during prolonged hiking or rock climbing, the wearer can always stay dry even if he sweats a lot.
It is worth noting that the moisture permeability of TPU composite milk silk fabrics can also be optimized by adjusting the thickness and porosity of the TPU film. Depending on actual needs, manufacturers can choose TPU films with different parameters to meet the requirements of specific application scenarios. For example, for winter outdoor equipment, thicker TPU films can be used to enhance wind resistance while retaining sufficient moisture permeability; for summer equipment, thinner TPU films can be used to improve breathability.
In short, TPU composite milk silk fabric has become an ideal choice in the field of high-end outdoor equipment with its advanced moisture permeability technology. Whether it is extreme sports or daily leisure activities, this fabric provides users with an excellent comfort experience.
Product parameters analysis of TPU composite milk silk fabric
TPU composite milk silk fabric has shown wide applicability in the field of outdoor equipment due to its unique performance characteristics. The following is a detailed analysis of the key product parameters of this fabric and its specific application scope:
1. Fabric Thickness
- Parameter range: 0.1mm to 0.3mm
- Scope of application:
- 0.1mm Thickness: Suitable for lightweight equipment, such as running suits, summer outdoor shirts, etc., emphasizing breathability and flexibility.
- 0.3mmThickness: used in winter jackets, ski suits and other equipment that require higher wind resistance, taking into account both warmth and protection.
2. Breathability
- Parameter range: 5,000 g/m²/24h to 15,000 g/m²/24h
- Scope of application:
- 5,000 g/m²/24h: Suitable for low-intensity activities such as daily walking or short hiking.
- 15,000 g/m²/24h: Designed for high-intensity sports such as long-distance running, cross-country running or mountaineering.
3. Waterproof
- Parameter range: 5,000 mm to 20,000 mm Water column pressure
- Scope of application:
- 5,000 mm: Suitable for mild rainfall environments, such as urban commuter raincoats.
- 20,000 mm: Professional outdoor equipment for extreme weather conditions, such as alpine climbing suits.
4. Tenergy Strength
- Parameter range: 10 MPa to 30 MPa
- Scope of application:
- 10 MPa: Suitable for low wear scenarios, such as daily outdoor clothing.
- 30 MPa: Used in high friction environments such as rock climbing gloves or mountaineering backpack fabrics.
5. Elastic recovery rate
- Parameter range: 80% to 95%
- Scope of application:
- 80%: Suitable for general purposes, such as ordinary outdoor pants.
- 95%: Used for equipment that requires high elasticity, such as tight sportswear or compression clothing.
Parameter comparison table
| Parameter indicator | Low Value | High value | Application Scenario |
|---|---|---|---|
| Fabric Thickness (mm) | 0.1 | 0.3 | Lightweight equipment vs winter protective equipment |
| Breathability (g/m²/24h) | 5,000 | 15,000 | Daily Activities vs High Intensity Exercise |
| Waterproof (mm H₂O) | 5,000 | 20,000 | Minor rain vs extreme weather |
| Tension Strength (MPa) | 10 | 30 | Low wear vs high friction environment |
| Elastic recovery rate (%) | 80 | 95 | General use vs high elasticity demand |
Through the flexible adjustment of the above parameters, TPU composite milk silk fabric can adapt to various needs from basic outdoor activities to extreme adventures, fully reflecting its versatility and high performance characteristics.
Special application cases of TPU composite milk silk fabric in outdoor equipment
TPU composite milk silk fabric has been widely used in products of many well-known outdoor brands due to its excellent windproof and moisture permeability. The following are some specific application cases showing how this fabric improves the functionality and user experience of outdoor equipment.
1. The North Face’s Summit Series
The North Face uses TPU composite milk silk fabric in its top-notch series Summit Series. Designed for high-altitude mountaineering, this jacket utilizes the high-density molecular structure of the TPU film to effectively block the cold wind, while the milk silk layer provides additional warmth and comfort. According to user feedback, this jacket is at extremes such as Mount EverestExcellent performance in the environment, effectively maintaining the wearer’s body temperature balance while ensuring rapid moisture discharge and preventing internal moisture.
2. Arc’teryx’s Alpha SV Jacket
Arc’teryx’s Alpha SV jacket is a professional mountaineering suit designed for inclement weather. The jacket uses TPU composite milk silk fabric, combining the waterproof and breathable properties of TPU and the natural antibacterial properties of milk silk. This combination allows the Alpha SV to remain fresh after prolonged use and provides continuous comfort during high-intensity exercise. Test data show that the jacket has a moisture transmission rate of 12,000 g/m²/24h, significantly better than other similar products on the market.
3. Patagonia’s Torrentshell Waterproof Jacket
Patagonia’s Torrentshell waterproof jacket features TPU composite milk silk fabric designed to provide lightweight weather protection. The microporous structure of the TPU film ensures efficient moisture permeability of the jacket, while the milk silk layer increases the comfort of wearing. This jacket is especially suitable for short hiking and traveling, and its lightweight design and excellent protection have been widely praised.
4. Mammut’s Ultimate Highline Jacket
Mammut’s Ultimate Highline Jacket is a high-performance jacket designed for alpine skiing. The application of TPU composite milk silk fabric in this jacket not only enhances its wind resistance, but also provides additional warmth and comfort through the milk silk layer. User reviews show that the jacket is particularly prominent in extreme cold and strong winds, effectively protecting skiers from bad weather.
These specific application cases demonstrate the significant role of TPU composite milk silk fabric in improving the functionality and user experience of outdoor equipment, and prove its important position in modern outdoor equipment design.
Reference Source
- Advanced Materials for Outdoor Textiles, John Wiley & Sons, 2018.
- Textile Science and Technology: Functional Textiles, Elsevier, 2019.
- Polyurethane Handbook, Hanser Publishers, 2017.
- Outdoor Gear Design and Innovation, Springer, 2020.
- Functional Fibers and Textiles in Sportswear, Woodhead Publishing, 2016.
The above literature provides support for this article on technical details and application cases of TPU composite milk silk fabrics, ensuring the scientificity and authority of the content.
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