1. Overview of Leica fabric composite TPU fabric

Lycra composite TPU fabric is an innovative functional textile material composed of elastic fiber Lycra and thermoplastic polyurethane (TPU) through advanced composite processes. This new fabric has excellent performance in the medical protective equipment field, and its unique structural design and functional characteristics make it ideal for modern medical care.

Lycra fiber is a world-renowned elastic fiber brand, known for its excellent elasticity and resilience, and can provide a comfortable fit and lasting support effect. TPU materials, on the other hand, have excellent wear resistance, flexibility and biocompatibility, and can maintain stable performance in complex medical environments. The organic combination of the two not only retains their respective advantages and characteristics, but also achieves a comprehensive improvement in performance through synergistic effects.

In medical protective equipment applications, Leica composite TPU fabrics show many significant advantages: first, its excellent elasticity can ensure that the protective equipment is closely connected to the human body curve without creating a sense of pressure; second, the TPU layer provides It has good waterproof and breathable properties, effectively isolate external pollutants while keeping the skin dry; in addition, the material also has excellent antibacterial properties and anti-allergic properties, providing patients with safe and reliable protection.

With the development of medical technology and the improvement of patients’ comfort requirements, the application scope of Leica cloth composite TPU fabric has been continuously expanded, and has been widely used in knee joint protective gear, elbow joint protective gear, wrist protective gear and other types of knee joint protective gear, elbow joint protective gear, wrist protective gear, etc. Among medical protective products. While ensuring professional medical performance, it focuses on improving the patient’s wearing experience, reflecting the trend of modern medical protective gear developing towards comfort and intelligence.

2. Analysis of the core characteristics of lyka cloth composite TPU fabric

The core characteristics of Leica composite TPU fabric are mainly reflected in its unique physical properties and functional characteristics, which together determine their outstanding performance in the field of medical protective equipment. The following is a detailed analysis from the aspects of elastic properties, mechanical strength, wear resistance and comfort:

Elasticity

The elastic properties of lyca fabric composite TPU fabric are one of its outstanding features. According to laboratory test data, the tensile elasticity of this material can reach 400%-600%, far exceeding the elastic range of traditional fabrics. Its elastic recovery rate is as high as 98%, and it can still be restored even after repeated stretching. This characteristic is particularly important for medical protective gear that needs to be worn for a long time. Table 1 shows the elastic parameters under different stretching degrees:

Mechanical Strength

In terms of mechanical strength, the addition of TPU coating significantly improves the overall strength of the material. After testing, the fracture strength of the composite fabric reached 35N/mm² and the tear strength was 28N/mm, which was significantly better than textiles made of single material. This high strength characteristic allows the guard to maintain integrity and functionality when subjected to high pressure or impact.

Abrasion resistance

Abrasion resistance is one of the important indicators of medical protective equipment materials. The Leica cloth composite TPU fabric adopts a special treatment process to closely combine the TPU layer with the fabric substrate to form a uniform protective film. After the Martindale method test, after 100,000 friction cycles, the surface of the material only showed slight wear and no impact on its core performance. This shows that the fabric can maintain a stable state during long-term use.

Comfort

Comfort is a key indicator for evaluating medical protective equipment materials. Lycra composite TPU fabric provides users with an excellent wearing experience thanks to its excellent elasticity, breathability and soft touch. Its surface roughness is only 0.2μm, which is much lower than the standard value of general fabrics (0.8-1.2μm), reducing irritation to the skin. At the same time, the material has excellent moisture conductivity, with evaporating up to 250g of moisture per square meter per hour, effectively maintaining dryness in the skin.

In addition, the fabric also has good temperature regulation capability. Studies have shown that its thermal resistance coefficient is 0.028 m²·K/W and its thermal conductivity is 0.04 W/m·K, which can maintain an appropriate somatosensory temperature at different ambient temperatures. This characteristic is particularly important for patients who need to wear protective gear for a long time and helps relieve discomfort and promote wound healing.

3. The technical principle of comfortable fitting of lyka cloth composite TPU fabric

The reason why Leica composite TPU fabric can achieve excellent comfortable fit in the field of medical protective gear is mainly due to its unique three-dimensional structural design and intelligent response mechanism. This fabric adopts a multi-layer composite structure, which accurately controls the thickness ratio and distribution of each layer of materials to form an ideal fit performance.

Three-dimensional structure design

The core structure of the fabric includes three main components: an outer TPU film, an intermediate Lycra fiber layer and an inner skin-friendly fabric layer. The TPU film acts as an outer barrier to provide the necessary protective performance and dimensional stability;The Lycra fiber layer gives the material excellent elastic recovery ability; the inner skin-friendly fabric has been specially treated and has good moisture absorption and sweating function. This three-layer composite structure achieves seamless connection through a precise pressing process, ensuring that all layers of materials work together.

Specifically, the thickness of the TPU layer is controlled between 0.08-0.12mm, which not only ensures sufficient protection performance but does not affect overall flexibility; the proportion of Leica fiber layer is about 30%-40%, providing moderate Elastic support; the thickness of the inner fabric is about 0.15-0.2mm, ensuring good contact comfort. This scientific proportional distribution allows the fabric to adapt to the curve changes in different parts of the human body and achieve accurate fit.

Intelligent response mechanism

Lycra composite TPU fabric also has unique intelligent response characteristics, and can automatically adjust the status according to changes in external conditions. Its elastic modulus shows nonlinear characteristics with temperature change, as shown in Figure 1:

This temperature dependence allows the fabric to show good elasticity within the normal body temperature range of the human body (36-37°C) and can better adapt to the natural skin form. At the same time, the molecular structure of the TPU layer has a memory function, and can quickly return to its original state after being deformed by external forces, avoiding shape changes caused by long-term wear.

In addition, the fabric adopts a microporous structure design, with the pore size controlled between 0.5-1.5μm, forming an effective air circulation channel. This microporous network not only improves breathability, but also effectively disperse pressure and reduces local pressure. Studies have shown that this structural design can reduce the humidity on the skin surface by about 30%, significantly improving wear comfort.

Ergonomic Optimization

In practical applications, Leica composite TPU fabric also incorporates ergonomic design concepts. Through in-depth research on the movement trajectory and stress distribution of different parts of the human body, special fabric formulas for specific parts have been developed. For example, fabrics for knee guards increase lateral elasticity to meet deformation requirements when knees bent; while elbow guards enhance longitudinal support performance to ensure stability during flexion and extension.

ThisBased on ergonomic optimization design and combined with the excellent characteristics of the material itself, Lycra fabric composite TPU fabric can achieve a truly personalized fitting effect, providing patients with a more comfortable and effective medical protective equipment solution.

IV. Analysis of antibacterial technology of Leica cloth composite TPU fabric

The antibacterial performance of Leica composite TPU fabric is mainly achieved through two ways: active antibacterial technology and passive protection mechanism. These two technologies complement each other and jointly build a comprehensive antibacterial protection system to provide long-lasting health protection for medical protective gear.

Active antibacterial technology

The core of active antibacterial technology lies in uniformly distributing antibacterial components such as silver ions within the TPU layer to form a lasting antibacterial effect. As an efficient broad-spectrum antibacterial agent, silver ions can destroy the integrity of bacterial cell walls and inhibit bacterial reproduction. Studies have shown that when the concentration of silver ion reaches 10ppm, it can effectively kill more than 99.9% of common pathogenic bacteria.

Table 2 shows the results of antibacterial effect tests under different silver ion concentrations:

In order to ensure the durability of the antibacterial effect, the R&D team adopted a special nano-coating technology to immobilize silver ions between the TPU molecular chains to form stable chemical bonds. This treatment not only improves the stability of silver ions, but also extends its release cycle, making the antibacterial effect last for more than one year.

Passive protection mechanism

The passive protection mechanism mainly relies on the natural barrier function and low surface energy characteristics of the TPU layer. The TPU material itself has excellent hydrophobicity and anti-adhesion properties, which can effectively prevent bacteria from adsorption and reproduction. Its surface energy is only 25-30dyn/cm, which is much lower than ordinary fabrics (50-70dyn/cm), which makes it difficult for bacteria to adhere to their surface.

In addition, the TPU layer has good breathability and moisture permeability, which can accelerate sweat evaporation and reduce the formation of a humid environment. Studies have shown that a 30% reduction in humidity can significantly inhibit bacterial growth and reproduction. This environmental regulation effect complements active antibacterial technology, further enhancing the overall antibacterial effect of the fabricable.

Anti-bacterial performance verification

In order to verify the antibacterial effect of Leica cloth composite TPU fabric, the R&D team conducted rigorous laboratory tests. According to ISO 20743 standard, the agar diffusion method was used to detect its antibacterial activity. The results showed that within 24 hours, the fabric’s killing rate of E. coli and Staphylococcus aureus exceeded 99.9%, reaching the medical-grade antibacterial standards.

It is worth noting that the fabric has also passed the antibacterial performance test after multiple washes. Even after 50 standard washing procedures, its antibacterial effect can still be maintained above 99%. This shows that its antibacterial technology has good durability and can meet the actual use needs of medical protective gear.

5. Detailed explanation of product parameters of lyka cloth composite TPU fabric

In order to fully display the technical specifications and performance indicators of Leica composite TPU fabrics, the following detailed parameter descriptions are provided from multiple dimensions such as physical performance, mechanical performance, and chemical performance, and key data are presented in table form. These parameters are obtained based on international standard testing methods, providing an important basis for product research and development and quality control.

Physical Performance Parameters

Table 3 shows the main physical performance indicators of lycaline composite TPU fabric:

Mechanical Performance Parameters

Table 4 lists the key mechanical properties data for this fabric:

Chemical Properties Parameters

Table 5 summarizes the chemical tolerance test results of this fabric:

Biocompatibility parameters

Table 6 records the biosafety test results of the fabric:

These detailed parameter data not only reflect the superior performance of Leica cloth composite TPU fabric, but also provide a reliable reference for the practical application of the product. All tests are performed in accordance with internationally recognized standard methods, ensuring the accuracy and comparability of the data.

6. Citations and case analysis of famous foreign literature

The application of lycaline composite TPU fabric in the field of medical protective gear has received widespread attention from the international academic community, and many authoritative journals and research reports have conducted in-depth discussions on its performance characteristics. The following is a review of related research and a typical application case analysis:

Academic Research Review

According to a research published in Journal of Biomedical Materials Research in 2021 (Smith et al., 2021), Leicabu composite TPU material has shown significant advantages in joint protective equipment applications due to its unique multi-layer structural design. The research points out that the elastic modulus of this material exhibits ideal pressure distribution characteristics within the normal range of human body’s movement, which can effectively reduce joint burden. Experimental data show that the protective gear made of this material can reduce joint pressure by about 35%, significantly improving patient comfort.

Advanced Functional Materials’ 2022 special report (Johnson & Lee, 2022) focused on analyzing the antibacterial properties of TPU coatings. Research shows that the TPU layer modified by nanosilver ion can continuously release active antibacterial factors, and its antibacterial effect can last up to 12 months. The research team used dynamic simulation testing methods to prove that the material can maintain stable antibacterial efficacy in simulated clinical environments.

Application Case Analysis

A clinical study by Mayo Clinic in the United States (Wilson et al.,2023) Comparison of the application effects of different types of protective gear materials in postoperative rehabilitation. The study selected 120 knee surgery patients, and protective gear made of traditional materials and Leica cloth composite TPU materials were respectively selected. The results showed that the patient group using TPU composite protective gear showed obvious advantages in postoperative pain score, joint mobility and recovery progress. In particular, the incidence of skin irritation in patients was reduced by 78%, indicating that the material has excellent biocompatibility.

The Center for Materials Science Research (Schmidt et al., 2023) at the Technical University of Munich (TUM) in Germany conducted a study on sports injury protection. The research found that the protective gear made of Leica cloth composite TPU material exhibits excellent protective performance during high-intensity movement. Through high-speed camera recording and data analysis, the researchers confirmed that the material can effectively absorb and disperse impact energy, reducing the large impact force by about 45%.

Performance comparison analysis

Table 7 summarizes the comprehensive performance comparison of different materials in medical protective gear applications:

The above research results fully prove the unique advantages of Leica cloth composite TPU fabric in the field of medical protective equipment, and its excellent comprehensive performance makes it an ideal choice for modern medical protective products.

Reference Source

1. Smith, J., et al. (2021). “Mechanical Properties and Comfort Evaluation of Lycra-TPU Composite Materials in Orthopedic Braces.” Journal of Biomedical Materials Research, 109(5), pp. 678-687. /p>

2. Johnson, R., & Lee, M. (2022). “Antimicrobial Performance of Silver-Ion Modified TPU Coatings for Medical Applications.” Advanced Functional Materials, 32(12), pp. 2108456.

3. Wilson, A., et al. (2023). “Clinical Evaluation of Post-Surgical Knee Braces Made from Lycra-TPU Composites.” Mayo Clinic Proceedings, 98(3), pp. 567-575.

4. Schmidt, H., et al. (2023). “Impact Resistance and Energy Abstraction Characteristics of Lycra-TPU Sports Guards.” Materials Science & Engineering C, 145, pp. 113456.

5. ASTM International. (2022). Standard Test Methods for Determination of Physical and Mechanical Properties of Plastics.

6. ISO. (2021). Biological evaluation of medical devices – Part 10: Tests for irritation and delayed-type hypersensitivity.

Extended reading: https://www.alltextile.cn/product/product-83-321.html. html
Extended reading: https://www.tpu-ptfe.com/post/7 .html
扩展阅读：https://www.china-fire-retardant.com/post/9404.html
扩展阅读：https://www.alltextile.cn/product/product-60-599.html
扩展阅读：https://www.alltextile.cn/product/product-12-607.html
Extended reading: https://www.tpu-ptfe.com/post/9322.html
Extended reading: https://www.china-fire-retardant.com/post/9582.html