Bio-Inspired Passive Radiative Cooling Functional Yarn for Sustainable Textiles

Inspiration: Nature’s Master of Heat Dissipation

The technology is inspired by the heat dissipation properties of silver mosquito hair, which influences light reflection characteristics across different wavelength bands.

The Effect of Hair on Light Reflection Characteristics

1. Visible and Far-Infrared Bands

• Silver mosquito hair enhances the reflectance of visible and near-infrared light.

• Reflectance increases as the angle of incidence increases.

• Simulations show that triangular hair exhibits better reflectance than circular hair.

• The performance difference becomes more pronounced at large angles of incidence.

2. Mid-Infrared and Far-Infrared Bands

• Reflectance in hairy regions is lower than in hairless regions.

• This indicates that hair can reduce an object’s reflectance in the mid-infrared band.

• Silver mosquito hair reduces the degree to which an object’s reflectance in the mid-infrared band is affected by the angle of incidence.

Off-Grid Cooling Solutions

1. Passive radiative cooling technology – Asia’s first breakthrough study in this field.

2. In-house development of multi-scale nanoscale materials.

3. Industry-leading cooling performance.

Off-Grid Cooling Products

• Passive cooling coatings

• Passive cooling powder coatings

• Passive cooling sheet materials

• Passive cooling films

• Passive cooling textiles

• Passive cooling exterior wall tiles

• Passive cooling paving stones

• Passive cooling vehicle films

• Passive cooling vehicle paints

Application Scenarios

Market for Temperature-Regulating Textiles

1. “Comfort” Has Become the Top Priority

• 84% of consumers cite “comfort” as the primary factor when choosing clothing.

• Texture/weave (23.8%) and feel (18%) are the physical characteristics consumers pay most attention to.

• These characteristics directly influence purchasing decisions.

2. Willingness to Pay a Premium

• 92% of Chinese consumers are willing to pay a premium for customized or functional products.

• This is significantly higher than the global average.

• Chinese consumers place greater emphasis on product functionality than on emotional factors.

• They are willing to pay for “quantifiable benefits” such as a cooling sensation or temperature control.

3. Perceptible, High Conversion Rates

• The cooling sensation can be experienced and perceived by consumers in real time.

• This boosts in-store purchase conversion rates.

• It also increases positive reviews for online stores and reduces return rates.

• Products backed by genuine test data and offering a distinct cooling sensation help build consumer trust.

• This is particularly valuable in a market where the “cooling sensation” concept is currently overused.

4. Market Growth Trends

• Sales of cooling T-shirts for children surged by 364.97% year-on-year in Q2 2022.

• Searches for “cooling” on Xiaohongshu increased by 741% month-on-month (June 2025).

Technological advancements driving market segmentation:

• Basic cooling fabrics

• Smart temperature-regulating fabrics

• Multi-functional fabrics

5. The Growing Popularity of “Sustainability”

• By wearing cooling clothing and choosing cooling home textiles, people can enhance their comfort and reduce their reliance on air conditioning.

• As “slow fashion” replaces “fast fashion” , cooling fabrics made from original yarns—which can be washed repeatedly and worn for a long time—are becoming increasingly popular.

• On Amazon, sales of products labeled “Climate Pledge Friendly” have increased by 200% year-on-year.

Product Manufacturing Process

Cooling Powder——Cooling Master Batch——Cooling Yarn——Cooling Fabric

Dual Cooling System – Product Lineup

1. Single-Sided Plain Weave – Breeze

• Suitable for: Everyday wear; outdoor work in high temperatures

• Advantages: High stretch, relatively lightweight, excellent moisture-wicking properties

2. Double-Sided Plain Weave – Flex

• Suitable for: Fitness and aerobic exercise

• Advantages: Excellent elasticity, moisture-wicking properties, provides good support during exercise

3. Warp-Knitted Fabric with Woven-Like Finish – Glide

• Suitable for: Everyday wear; outdoor work in high temperatures

• Advantages: Lightweight, high-density fabric; slight stretch and water-repellent properties; moisture-wicking capabilities

4. Knitted Mesh – Vent

• Suitable for: High-intensity workouts

• Advantages: High-density mesh design; ultra-lightweight; excellent moisture-wicking and quick-drying properties

5. Honeycomb Ribbed – Cotton (First appearance)

• Suitable for: Everyday casual wear

• Advantages: Made from cotton; soft against the skin; comfortable and lightweight with slight stretch; wicks away sweat and moisture

6. Honeycomb Ribbed – Cotton (Second appearance – duplicate entry as per original)

• Suitable for: Everyday casual wear

• Advantages: Soft, skin-friendly cotton feel; comfortable, lightweight and slightly stretchy; effectively wicks away sweat and moisture

Note: The original text contains two identical entries for “Honeycomb Ribbed Cotton”. Both are preserved here as presented in the source material.

Summary of Sustainability Performance

Functional Yarns | Sustainable Textiles

• Shorter lead times and improved production efficiency

• Reduced post-processing, saving water and energy while minimizing emissions

• Avoids the deterioration in fabric quality caused by complex finishing processes

• Fabrics suitable for repeated washing and long-lasting wear, in line with the “slow fashion” movement

• High dye uptake, saving on dye and energy consumption

• Cool and comfortable, reducing electricity consumption from air conditioning