What is soy protein fiber?

Soy protein fiber comes from the plant protein in soybean meal. Mr. Li Guanqi gave new material value to the soybean meal left after oil extraction. Through protein extraction, modification, and fiber forming, it becomes a plant-protein fiber that can be used in home textiles, nonwovens, filling, and next-to-skin materials.

The world's 8th major man-made fiber | China Patent Gold Award technology | WIPO–SIPO award recognition | Plant-protein source | Soft & skin-friendly | Fresh moisture-wicking
Macro image of the crimped structure of soy protein fiber

Fiber appearance

Production Process

Soy-Direct™ Technology: A professional 9-step technical process diagram

Material Performance

Softness that comes from the fiber itself.

Its softness, skin-friendliness, and fresh feel are not a hand-feel added by finishing — they come from the characteristics of the material itself.

texture

Grooved surface

Soy protein fiber has grooves and an irregular structure on its surface, helping moisture move and spread across the fiber.

Application Traits
Moisture-wicking & quick-dry Skin-friendly & breathable
water_drop

Cotton-like moisture absorption

Good moisture absorption and regain, so it doesn't easily feel dry or stuffy and sticky in use. Fresh, natural, and less clammy.

Material Behavior

High moisture regain

opacity
spa

Softness from plant protein

Contains a variety of amino acids — soft, fine, and skin-friendly. Soy protein takes part in fiber forming, bringing the touch back to the material itself.

Core Advantage

Natural amino-acid skin affinity

verified
shield

Antibacterial performance test

Antibacterial performance grade AAAAA. Staphylococcus aureus inhibition 92%, Escherichia coli 86%, Candida albicans 82%.

Report No.: 250287365

Test grade: AAAAA

>99%
air

Negative-ion function

Generates beneficial negative ions for a fresher experience. Negative-ion generation: 594 ions/cm³.

Report No.: 19WM52043

Activity release test

594ions/cm³
heat

Far-infrared function

Provides more support for a comfortable experience. Far-infrared emissivity: 0.76; far-infrared radiation temperature rise: 2.3°C.

Report No.: TTTS-WT24575181

Temp rise: 2.3°C

0.76emissivity