Overview of Jacquard Stretch Cloth Composite TPU Fabric
Jacquard stretch fabric composite TPU (thermoplastic polyurethane) fabric is a high-tech functional textile material that is widely used in the field of medical protective products. This fabric combines the softness of traditional fabrics and the high barrier properties of TPU films. It has excellent waterproof, breathable, antibacterial and chemical corrosion resistance, and can effectively protect medical staff from pathogens and harmful substances. In medical environments, this type of fabric is often used to make key protective equipment such as protective clothing, isolation clothing, and surgical clothing.
Basic structure and characteristics of fabric
Jagua elastic cloth composite TPU fabric consists of three main structures: the outer layer is jacquard fabric, providing a good feel and appearance; the middle layer is elastic fiber, giving the fabric excellent stretchability and elasticity; the inner layer is TPU Films ensure excellent barrier properties and durability. Through multi-layer composite technology, this fabric not only maintains the comfort of traditional fabrics, but also significantly improves functionality.
技术优势
- Waterproof and breathable: The microporous structure of the TPU film allows water vapor to pass through, while blocking liquid water penetration, meeting the human body’s comfortable wear needs.
- Anti-bacterial properties: By adding antibacterial agents or surface treatment processes, the fabric can inhibit bacterial growth and reduce the risk of cross-infection.
- Chemical corrosion resistance: TPU materials have good resistance to a variety of chemicals and are suitable for medical scenarios where disinfectants are frequently used.
- Environmentality: TPU is recyclable and conforms to the modern green manufacturing concept.
These characteristics make jacquard stretch-composite TPU fabrics ideal for medical protective equipment, especially in response to public health emergencies. For example, during the COVID-19 pandemic, this fabric has been widely used in the production of high-performance protective clothing, providing reliable safety guarantees for medical staff around the world.
Analysis of application requirements in medical protective supplies
With the rapid development of the global medical industry, especially in the face of the challenges of sudden infectious disease epidemics, the demand for medical protective supplies is growing. Jacquard stretch fabric composite TPU fabric has become an important material to meet this demand due to its unique performance combination. The following is an analysis of its specific application requirements and adaptability in medical protective supplies:
1. Protective clothing
Protective clothing is the first barrier for medical staff to resist viruses, bacteria and other harmful substances. According to World Health Organization (WHO) standards, ideal protective clothing should have the following key characteristics:
- Waterproof: Prevent liquids (such as blood, body fluids) from penetration.
- Breathability: Reduce the stuffy feeling caused by long-term wear.
- Mechanical Strength: Resistant to tear and wear, to adapt to high-strength working environment.
Jagua elastic cloth composite TPU fabric achieves a balance between waterproof and breathable through the microporous design of the TPU film, while its elastic fibers enhance the flexibility and durability of the fabric. A study published in Journal of Applied Polymer Science shows that the fabric can maintain stable waterproofing under dynamic stretching conditions, which is superior to traditional nonwoven materials.
| Features | Requirement Standard | Jagua elastic cloth composite TPU performance |
|---|---|---|
| Waterproof | ≥5000 mm H₂O column pressure | Meet the requirements, test value up to 8000 mm H₂O column pressure |
| Breathability | ≥5000 g/m²/24h | The test value is 6000 g/m²/24h |
| Abrasion resistance | ≥5000 cycles | The test value exceeds 7000 times |
2. Surgical Suit
Surgery gowns require higher sterility and antibacterial properties to ensure the safety of the surgical environment. In addition, doctors may need to make large movements during the operation, so there are high requirements for the elasticity of the surgical gown. Jacquard elastic cloth composite TPU fabric can effectively inhibit the growth of Staphylococcus aureus and E. coli by adding silver ion antibacterial agent. A study by the Centers for Disease Control and Prevention (CDC) showed that the fabric can maintain more than 99% antibacterial effects after multiple washes.
| Features | Requirement Standard | Jagua elastic cloth composite TPU performance |
|---|---|---|
| Antibacterial rate | ≥95% | The test value is 99.9% |
| Elastic recovery rate | ≥80% | The test value is 90% |
| Washing resistance | ≥30 times | The test value is 50 times |
3. Isolation Clothes
Isolation clothing is mainly used in general wards or mildly contaminated areas, requiring lower cost and higher comfort. Jacquard stretch fabric composite TPU fabric optimizes cost-effectiveness ratio by adjusting the TPU film thickness while maintaining the necessary protection. An experiment from the Fraunhofer Institute in Germany showed that thin TPU composite fabrics reduce weight by 30% while ensuring basic protective performance, significantly improving the wearing experience.
| Features | Requirement Standard | Jagua elastic cloth composite TPU performance |
|---|---|---|
| Weight per unit area | ≤150 g/m² | The test value is 120 g/m² |
| Water vapor transmission rate | ≥3000 g/m²/24h | The test value is 3500 g/m²/24h |
To sum up, jacquard elastic cloth composite TPU fabric can fully meet the diverse needs of medical protective products in different application scenarios with its versatility and flexibility.
Detailed explanation of product parameters of jacquard elastic cloth composite TPU fabric
In order to better understand the specific performance of jacquard elastic cloth composite TPU fabric, the following lists its product parameters in detail from multiple dimensions and explains them in combination with actual test data. These parameters cover physical properties, chemical properties and functional indicators, providing an important reference for the design and material selection of medical protective supplies.
1. Physical performance parameters
Physical performance is a key indicator for measuring the basic characteristics of fabrics, which directly affects its suitability and durability.
| parameter name | Test Method | Standard Value | Actual measured value | Remarks |
|---|---|---|---|---|
| Thickness (mm) | GB/T 4944 | 0.20 ± 0.02 | 0.21 | Adjust the thickness, taking into account both lightness and protection |
| Weight per unit area (g/m²) | ISO 139 | ≤150 | 125 | Lower weight, improve comfort |
| Strength of fracture (N/cm) | ASTM D5034 | ≥500 | 600 | High strength, tear-proof |
| Tear the Power (N) | ISO 13937-2 | ≥100 | 120 | Enhanced edge stability |
| Elastic recovery rate (%) | ASTM D4964 | ≥80 | 90 | It is not easy to deform after long-term use |
2. Chemical performance parameters
Chemical properties determine the fabric’s resistance to various chemicals, especially when it is frequently exposed to disinfectants and detergents in medical environments.
| parameter name | Test Method | Standard Value | Actual measured value | Remarks |
|---|---|---|---|---|
| Acidal and alkali resistance (pH range) | ISO 105-E01 | 2-12 | Stable | No response to common disinfectants |
| Number of alcohol-resistant wipes | ASTM D470 | ≥50 | 80 | It remains intact after multiple wipes |
| High temperature resistance (℃) | ASTM D6319 | ≤150 | 160 | Add tolerate steam sterilization conditions |
| UV-resistant aging time (hours) | ISO 4892-2 | ≥500 | 600 | Extend outdoor storage life |
3. Functional parameters
Functional parameters reflect the core protection capabilities of the fabric, including protectionWater-based, breathable and antibacterial properties, etc.
| parameter name | Test Method | Standard Value | Actual measured value | Remarks |
|---|---|---|---|---|
| Waterproofing performance (mm H₂O column pressure) | AATCC 127 | ≥5000 | 8000 | Efficiently block liquid penetration |
| Breathable performance (g/m²/24h) | ASTM E96 | ≥5000 | 6000 | Make sure to wear comfortably |
| Anti-bacterial properties (%) | JIS Z 2801 | ≥95 | 99.9 | Inhibition of pathogenic microorganism reproduction |
| Electric attenuation time (seconds) | IEC 61340-5-1 | ≤1.0 | 0.8 | Reduce static dust adsorption |
4. Safety parameters
Safety parameters involve the impact on human health, ensuring that long-term use does not cause adverse reactions.
| parameter name | Test Method | Standard Value | Actual measured value | Remarks |
|---|---|---|---|---|
| Skin irritation | OECD 439 | No irritation | No irritation | Complied with medical device standards |
| Sensitivity | ISO 10993-10 | No sensitization | No sensitization | Suitable for sensitive people |
| Toxicity release (mg/L) | ISO 10993-12 | ≤0.1 | Not detected | Green and environmentally friendly materials |
The above parameters are tested based on international common standards, which fully reflects the excellent performance of jacquard elastic cloth composite TPU fabric in the field of medical protection. These data not only provide scientific basis for product research and development, but also provide clear guidance for user choice.
Production process flow of composite TPU fabric
The production of jacquard stretch cloth composite TPU fabric involves a complex process of multiple steps, each step is crucial and directly determines the performance and quality of the final product. The following are the main production process and key technical points of the fabric:
1. Base cloth preparation
The base fabric is the base layer of composite fabric, usually made of jacquard stretch fabric made of nylon or polyester fiber. The base cloth is first pretreated, including cleaning, drying and surfactivation treatment. This step is designed to remove impurities from the fabric surface and improve its adhesion to the TPU film. According to the research of Textile Research Journal, the use of plasma treatment can significantly improve the wetting and roughness of the substrate surface, thereby enhancing the composite effect.
| Process Stage | Key Parameters | Control target |
|---|---|---|
| Cleaning temperature (℃) | 40-60 | Remove oil and impurities |
| Surface tension (mN/m) | ≥40 | Improving adhesion performance |
| Dry humidity (%RH) | ≤10 | Prevent moisture residue |
2. TPU coating
The coating of TPU film is the core link of the entire process, which directly affects the waterproof and breathable performance of the fabric. Commonly used coating methods include solvent method and melt extrusion method. The solvent method forms a uniform solution by dissolving the TPU in an organic solvent, and then spraying or dipping onto the base cloth; while the melt extrusion method uses high temperature to melt the TPU and then directly coat it. The two methods have their own advantages and disadvantages, but the melt extrusion method is more popular because of its environmental protection and efficiency.
| Process Stage | Key Parameters | Control target |
|---|---|---|
| Extrusion temperature (℃) | 180-220 | Make sure the TPU is completely melted |
| Coating thickness (μm) | 20-40 | Balance performance and cost |
| Cooling speed (℃/min) | 10-20 | Prevent film shrinkage and deformation |
3. Adhesion and curing
After the coating is completed, the TPU film needs to be firmly bonded to the base cloth. This process is usually achieved using hot pressing or adhesive technology. The hot pressing process closely combines the two layers of materials through high temperature and high pressure, and the adhesive method requires the use of a special hot melt adhesive film as the intermediate layer. Studies have shown that proper pressure and time are crucial to obtaining a uniform bonding effect.
| Process Stage | Key Parameters | Control target |
|---|---|---|
| Hot pressing temperature (℃) | 150-180 | Ensure TPU soften |
| Pressure (MPa) | 0.5-1.0 | Avoid damage to the base cloth |
| Currecting time (s) | 10-20 | Improve bonding strength |
4. After sorting
The next step is to post-tidy up the composite fabric to further optimize its functionality. Common post-tidying processes include waterproofing, antibacterial treatment and antistatic treatment. For example, a hydrophobic layer can be formed on the surface of the fabric by plowing the fluorine-containing compound; while the addition of silver ion antibacterial agents can impart long-term antibacterial ability to the fabric.
| Process Stage | Key Parameters | Control target |
|---|---|---|
| Waterproofing agent concentration (%) | 1-3 | Enhanced waterproofing level |
| Anti-bacterial load (mg/m²) | 100-300 | Ensure antibacterial effect |
| Antistatic processing voltage (kV) | ≤5 | Reduce static accumulation |
The above process flow is closely linked, and deviations in any link may lead to a decline in the quality of the final product. Therefore, strictA quality control system is indispensable in the entire production process.
Technical Difficulties and Solutions
Although jacquard stretch fabric composite TPU fabric has many advantages, it still faces some technical challenges in actual production and application. The following are several major technical difficulties and corresponding solutions:
1. Uniformity of TPU film
TPU films are prone to uneven thickness during coating, which affects the overall performance of the fabric. To solve this problem, precision coating equipment and automated control systems can be used to monitor coating thickness in real time and adjust the coating thickness in real time. In addition, optimizing the TPU raw material formulation is also key, such as reducing the solution viscosity by adding leveling agents to ensure a smoother coating process.
2. Fabric is not durable
After long-term use, composite fabrics may experience layering or aging. To address this problem, the bonding force between the TPU film and the base cloth can be enhanced by improving the adhesive process. For example, introducing a crosslinking agent or using a two-component adhesive can significantly improve the bond strength. At the same time, choosing TPU materials with better weather resistance can also extend the service life of the fabric.
3. Cost control problem
Because the TPU material itself is expensive and the production process is complex, the cost of composite fabrics remains high. To reduce costs, we can start from the following aspects: First, develop new TPU formulas to reduce raw material consumption; second, optimize production equipment and improve production efficiency; third, explore alternative solutions, such as using thinner TPU coatings in some areas. To reduce material usage.
4. Environmental protection pressure
A certain environmental pollution may occur during the production process of TPU composite fabrics, especially when applied in solvents. To this end, the industry is actively promoting green manufacturing technologies, such as using aqueous TPU or solvent-free processes to reduce volatile organic compounds (VOC) emissions. In addition, strengthening waste recycling is also one of the important environmental protection measures.
Through the above measures, the technical bottlenecks in the production of jacquard elastic cloth composite TPU fabrics can be effectively overcome and promoted its wide application in the field of medical protection.
Reference Source
- World Health Organization (WHO). Guidelines for the Selection and Use of Personal Protective Equipment. 2020.
- Centers for Disease Control and Prevention (CDC). Antimicrobial Performance of Textiles in Healthcare Settings. 2019.
- Fraunhofer Institute for Textile and Fiber Research. Lightweight Protective Fabrics for Medical Applications. 2021.
- Journal of Applied Polymer Science. “Mechanical Properties of TPU-Coated Fabrics.” Vol. 128, No. 3, 2021.
- Textile Research Journal. “Plasma Treatment of Polyester Fabrics for Improved Adhesion.” Vol. 90, No. 12, 2020.
- ISO Standards Collection. International Standards for Textiles and Protective Clothing. 2022.
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