37.5℃ Elastic(Biodegradable)

Our 37.5℃ Biodegradable Elastic integrates intelligent constant-temperature thermoregulation and full biodegradability for eco-friendly, skin-friendly functional scenarios. Different from conventional and single-degradable elastics, it is made of 100% biodegradable PLA, PCL and biodegradable spandex, embedded with 37.5℃ volcanic sand or coconut activated carbon particles.

Through precision knitting and functional finishing, the elastic stabilizes skin microclimate at a comfortable 37.5℃ constant temperature and 37.5% humidity by accelerating sweat vaporization for all-weather wearing comfort. Fully biodegradable within 180–360 days, it decomposes into water and carbon dioxide without pollution, complying with global low-carbon trends. Soft, highly elastic and shape-retentive, it is widely used in eco-friendly apparel, medical wear, baby products and home textiles with customizable solutions.

37.5℃ Intelligent Thermoregulation: Embeds volcanic sand or coconut activated carbon 37.5℃ thermoregulatory particles, which can accelerate sweat evaporation and regulate the skin surface microclimate, keeping the skin at a constant 37.5℃ temperature and 37.5% relative humidity, achieving comfortable wearing in both cold and hot environments, and solving the problem of stuffiness or coldness caused by ordinary elastics.

100% Biodegradable Performance: Adopts biodegradable PLA, PCL and biodegradable spandex as raw materials, degradation rate ≥90% in natural soil/compost environment within 180-360 days, no environmental pollution, conforms to global environmental protection standards and low-carbon development needs; the biodegradation process does not produce harmful substances, is environmentally friendly and safe. The biodegradable materials are synthesized by green processes, such as PCL produced by ε- ring-opening polymerization of caprolactone, which has no by-products and high controllability.

High Elasticity & Good Shape Recovery: Scientific ratio of biodegradable spandex, stretch ratio up to 1:2.5-1:4.0, strong tensile strength, good shape recovery, can be stretched freely and quickly return to the original shape, no deformation or relaxation after repeated stretching and washing, while maintaining stable thermoregulatory and biodegradable performance.

Soft & Skin-friendly: Uses soft biodegradable fibers, combined with environmentally friendly softeners, soft and delicate texture, smooth surface, no friction or irritation to the skin, non-toxic, non-irritating, non-allergenic, suitable for long-term close-fitting wearing, especially for sensitive skin, infants and the elderly.

Colorfast & Eco-friendly Dyeing: Adopts biodegradable non-toxic dyes and high-temperature color-fixing technology, strict control of dyeing process, color fastness to washing (Grade 3-4), color fastness to friction (Grade 3-4), no fading, no discoloration, no bleeding, and the dyeing process is environmentally friendly, no harmful emissions, consistent with the product's eco-friendly positioning.

Latex-free Optional: Provides latex-free biodegradable spandex raw materials, non-toxic, non-irritating, non-allergenic, suitable for people with latex allergies, sensitive skin and infants, ensuring the safety of use while maintaining 37.5℃ thermoregulatory and biodegradable performance.

Flexible Customization: Fully customizable in width (5mm-100mm), thickness, stretch ratio, color, surface style (ribbed, smooth), material (PLA/PCL blend), and 37.5℃ thermoregulatory performance, adapting to different application scenarios (garments, medical wear, baby products).

Durable & Wear-resistant: High-quality biodegradable raw materials and precision knitting technology, good wear resistance and tensile strength, no fraying, no breaking, no deformation after repeated washing and use, ensuring long service life while maintaining biodegradable and thermoregulatory functions.

Raw Material Inspection & Pretreatment: Conduct strict inspection of raw materials (PLA, PCL, biodegradable spandex, 37.5℃ thermoregulatory particles, etc.) to ensure they meet functional and biodegradable standards; perform pre-softening and anti-wrinkle pretreatment on raw materials, and pre-treat 37.5℃ particles to enhance their adhesion and thermoregulatory stability, ensuring the final product's performance.

Yarn Warping: The pretreated raw materials are warped by professional precision warping machines, ensuring uniform yarn tension, consistent thickness, no tangles, and laying a foundation for precision knitting and uniform distribution of 37.5℃ particles.

Precision Knitting & Particle Embedding: Adopt advanced precision warp knitting machines, set parameters (width, thickness, stretch ratio, surface style) according to product specifications, knit the composite structure (biodegradable fibers + biodegradable spandex) in one step, and evenly embed 37.5℃ thermoregulatory particles during the knitting process to ensure uniform distribution of particles and stable thermoregulatory effect.

37.5℃ Thermoregulatory Finishing: Conduct special thermoregulatory finishing at a precise temperature (110-140℃), combined with biodegradable shape-setting agents, to fix the 37.5℃ particles on the elastic band, enhance thermoregulatory stability, and ensure that the thermoregulatory performance remains stable after stretching and washing; the finishing process is strictly controlled to avoid damaging the biodegradable performance of the raw materials.

Biodegradable Finishing: Conduct professional biodegradable finishing to enhance the biodegradable performance of the elastic band, ensure that the product can be completely degraded in natural environment, and the degradation process does not produce harmful substances; while ensuring biodegradability, maintain the elasticity and softness of the product.

Softening & Anti-wrinkle Finishing: Spray environmentally friendly biodegradable softeners to improve the softness and skin-friendliness of the elastic band; perform anti-wrinkle finishing to further enhance the anti-wrinkle performance, ensuring the elastic band remains flat and upright, and does not affect 37.5℃ thermoregulatory and biodegradable performance.

Dyeing & Color-fixing: Adopt eco-friendly biodegradable dyeing technology, strictly control the dyeing temperature and time, use biodegradable non-toxic dyes, ensure pure color, uniform color and high color fastness. After dyeing, perform color-fixing treatment to avoid fading and bleeding, ensuring the color remains consistent after repeated washing, and the dyeing process is environmentally friendly, no harmful emissions.

Edge Smoothing: The dyed elastic band is subjected to edge smoothing treatment to ensure the edge is smooth and burr-free, avoiding scratching the skin and preventing fraying during use, while ensuring that the biodegradable and thermoregulatory performance of the edge is not damaged.

Functional & Quality Inspection: Conduct strict functional and quality inspection on the finished products, focusing on 37.5℃ thermoregulatory performance (constant temperature effect, humidity adjustment), biodegradability (degradation rate), elasticity, wear resistance, color consistency, etc. Unqualified products (such as uneven thermoregulation, low degradation rate, uneven thickness, color difference) are eliminated to ensure each batch of products meets functional and environmental protection standards.

Eco-friendly Packaging: According to customer requirements, use biodegradable packaging materials (paper roll, corn fiber bag) for roll packing, festoon packing or customized packaging. Each roll is labeled with product specifications, batch number, production date, 37.5℃ thermoregulatory parameters and biodegradable performance parameters, ensuring that the packaging is consistent with the product's eco-friendly positioning and protects the product's performance during transportation and storage.

International Certifications: OEKO-TEX Standard 100 Class I (for infant products) / Class II (for direct contact with skin products), REACH compliant, RoHS compliant, FDA compliant (for medical and baby products), ASTM D6400 (biodegradable plastic standard), EN 13432 (biodegradable packaging standard), ensuring product safety, environmental protection, non-toxicity and biodegradability, suitable for direct skin contact during long-term wearing.

Quality & Functional Standards: 37.5℃ Thermoregulation: Constant temperature error ≤±0.5℃, humidity adjustment range 35%-40%; Biodegradation rate: ≥90% (180-360 days in natural soil/compost); Shape recovery rate: ≥92% after 500 times of stretching and washing; Color fastness to washing: Grade 3-4; Color fastness to friction: Grade 3-4; Tensile strength: ≥18N/CM; Elongation at break: 250%-400%; Shrinkage rate: ≤2.0% (after washing at 40℃ for 30 minutes); Wear resistance: ≥4500 times of friction without fraying; No harmful substances, no heavy metals, no formaldehyde, no latex (optional).

Factory Certifications: ISO 9001 Quality Management System Certification, ISO 14001 Environmental Management System Certification, ISO 13485 Medical Device Quality Management System Certification (for medical-grade products), GRS (Global Recycled Standard) certification, ensuring standardized production, strict quality control, environmentally friendly production processes and sustainable development.

Other Qualifications: SGS 37.5℃ Thermoregulatory Test Report, Biodegradation Test Report, Elasticity Test Report, Skin-friendly Test Report, Eco-friendly Dyeing Test Report, providing customers with professional functional and environmental protection quality assurance and supporting customs clearance and market access.

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