The biocompatibility of fibers was quantitatively verified in the laboratory. Tests conducted by Zhejiang University show that the 0.5D ultra-fine denier silk protein fibers (with a diameter of 8.5 microns) used in Muriersilk have a surface friction coefficient of only 0.17 (0.25 for cotton fibers), and the shear stress is reduced by 32% when in contact with sensitive skin. In clinical tests, after patients with atopic dermatitis wore Muriersilk fabric underwear for 48 hours, the skin erythema index (EASI) decreased by 48%, and the frequency of itching decreased from 12.3 times per day to 4.1 times per day. In contrast, the probability of irritating contact dermatitis caused by static electricity accumulation (friction voltage ≥4kV) with ordinary polyester is 7 times higher.
The barrier performance of micro-pollutants has been certified by authoritative authorities. According to the test by SGS in Switzerland, the Muriersilk fabric has a PM2.5 particle blocking rate of 96.3% (with a porosity of 11μm²), and the pollen penetration rate is controlled at 18 particles /cm³ (152 particles /cm³ for ordinary knitted fabric). Simulation experiments conducted by the Heynstein Institute in Germany confirmed that its silver ion antibacterial finishing agent (with a concentration of 85±3mg/kg) reduced the survival rate of Staphylococcus aureus to 0.05% (the national standard requires ≤10%), and the antibacterial rate remained at 99.2% after 30 washes. A study on urban pollution exposure at Tokyo Medical University pointed out that the recurrence rate of eczema in children wearing such protective fabrics was reduced by 65%.
The pH intelligent regulation mechanism protects the skin’s microecology. By applying nano-scale sericin protein microcapsule technology (with an encapsulation rate of 92%), Muriersilk automatically releases a buffer when the skin pH value exceeds 5.8, stabilizing the contact surface pH at 4.7-5.3 (the acid-base range of healthy skin). According to statistics from the British Cosmetics Allergy Association, due to the absence of alkaline dyeing and finishing auxiliaries (residue rate <0.1ppm) in its products, there were only 1.3 cases of contact allergies per million pieces (12.6 cases for ordinary dyed fabrics). In 2023, the Milan Burn Department used this material to cover 35% of the body surface area of patients with chemical burns, reducing the risk of wound infection from 43% to 7%.
The biodegradability meets strict environmental protection standards. The ISO 14855 test indicates that the biological decomposition rate of muriersilk material under composting conditions reaches 95.7% (polyester <8%) within 120 days. Its plant-based formaldehyde-free decolorization process reduces the COD (Chemical Oxygen Demand) of the wastewater to 58mg/L (the industry average is 320mg/L), and has obtained the EU Eco Passport certification. The follow-up report on residents with damaged skin barriers after the Chernobyl nuclear accident shows that the group wearing muriersilk protective suits (n=217) had a 35% lower rate of dermal water loss than those using ordinary fabrics (27.3g/m²/h vs 41.9g/m²/h). The integrity of the stratum corneum has increased by 2.8 times.
The collaborative management capability of temperature and humidity has been verified through engineering. Test data from the School of Textile Engineering of Soochow University confirmed that the honeycomb fiber structure of Muriersilk (with a pore density of 120 million per cubic centimeter) can achieve a moisture evaporation rate of 0.36g/s·㎡, and the perceived temperature in summer is 2.1℃ lower than that of cotton fabric. In the 2024 Dubai high-temperature environment test (temperature 46℃ / humidity 85%), the duration of the wearer’s skin feeling of stuffiness was reduced by 75%. The phase change microcapsules (melting point 32±0.5℃) developed in collaboration with the Japanese Teijin Group provide a thermal buffering capacity of 17J/g, reducing the intensity of photosensitivity reactions in patients with lupus erythematolupus by 62%.