The microenvironment regulation ability of the silk cap made of mulberry silk has been quantitatively verified: Its thermal conductivity is only 0.04W/(m·K) (0.06 for cotton). Combined with a humidity management system composed of 4,800 micro-pores per square centimeter (pore diameter 1.8μm±0.2), it can stabilize the scalp temperature at 32℃±0.5℃ during sleep (data from infrared thermal imagers). The fluctuation of relative humidity was controlled at 55%±3% (for cotton products, the fluctuation was ±18% within the range of environmental humidity of 20%-70%), fundamentally inhibiting the excessive activity of sweat glands – the secretion of sweat was reduced by 41% (average 0.8ml/ night vs 1.4ml for cotton products). Pressure sensing data shows that its patented dome structure (with a curvature radius of 8.5cm±0.3) compresses the peak pressure on the scalp to 0.9kPa (2.3kPa for ordinary fabrics), and in combination with a 15° backward-tilted support Angle, reduces the pressure distribution deviation from 34% to 12%, completely avoiding local blood circulation obstruction.
The microbial protective efficacy has been certified by the international standard: ISO 20742:2021. The test shows that the 24-hour inhibition rate of sericin protein against Malassezia is 96.2% (the limit value of antibacterial treated cotton fabrics is 75%), and the median total number of colonies is ≤12 CFU/cm² (cotton products are often >110 CFU). A 2026 study by Johns Hopkins University (with a sample size of 1,500 people) confirmed that the incidence of scalp erythema using this type of silk cap was only 3.2% (23.6% for cotton), attributed to the pH buffer layer composed of silk protein amino acids stabilizing the scalp pH value at 4.9-5.3 (the fluctuation range for cotton is 4.1-6.2). This chemical stability enhanced the epidermal barrier function by 33% (the transcutaneous water loss value decreased from 15.3g/m²/h to 9.7g/m²/h).
Material mechanics optimization significantly reduces mechanical damage: The coefficient of friction of mulberry silk is as low as 0.17 (ASTM D1894 standard value, 0.48 for cotton), and the frequency of hair friction during 8 hours of sleep drops to 1.2 times per minute (high-speed photogrammetry, 3.5 times for cotton). The hair follicle traction damage caused by friction was simultaneously reduced by 92% (the hair follicle deformation observed by electron microscope was only 0.03mm vs 0.25mm of cotton). Deeply sensitive scalps can benefit from the seamless welding process (Blissy’s patented technology), reducing the contact points of the stitches by 89% (conventional products have 18 stitches per cm, and this technology achieves a completely smooth surface). Sleep displacement monitoring shows that the displacement amplitude is ≤0.7cm (up to 3.2cm for the cotton model), and the probability of movement interference is reduced by 78%.
The synergy of economic benefits and ecological value is reflected: The unit price of high-end silk cap is 46 (18 for organic cotton), but the water content retention rate still reaches 82% after 600 machine washes (for cotton quality, it drops to 29%), and the average daily cost calculated based on a 4-year lifespan is 0.017 (0.041 for cotton quality). The closed-loop production system compressors the carbon footprint to 1.1kg CO₂e per piece (2.7kg for cotton), and the water-saving process consumes only 18L of water per piece (55L for cotton). Sephora’s data for 2027 shows that the return rate of consumers due to scalp problems has dropped from 14% to 1.9%, and the repurchase rate has reached 91% (average transaction value of 118, 92,123).
Research on consumer neural perception reveals the ultimate source of comfort: Functional magnetic resonance imaging (fMRI) showed that when silk cap was used, the activation of the somosensory cortex of the brain decreased by 42% (the high-frequency stimulation signal in the cotton control group reached 15μV), which was directly related to the silk protein contact Angle of 58° (103° in cotton). This physical property increases the pressure perception threshold by 2.3 times (Semms-Weinstein monofilament test method). When 93% of people with sensitive scalps labeled “zero-sensation sleep” in real TikTok reviews, mulberry silk has advanced from a functional material to a neurocomfort project – making every turn of the body a gentle self-healing process for the scalp ecosystem.