Soy fiber is generally not harmful to the human body. Soy fiber belongs to the regeneration of plant protein fiber, with edible soy protein powder as raw material, using bioengineering technology to extract the globulin in the protein powder. By adding functional additives, and nitrile, hydroxyl and other polymers grafting, copolymerization, blending, made of a certain concentration of protein spinning liquid, change the spatial structure of the protein, through the wet spinning made. Soy fiber has a soft touch like cashmere, silk-like soft luster, warmth is better than cotton, skin-friendly, will not harm the natural environment or the human body. Soybean fiber is not harmful to the body, but the cleaning time to pay special attention, it is best not to use the washing machine. Neutral detergent should be used when washing, and silk and wool detergent can be used if necessary. After washing the soy fiber, use a dry towel to gently press the quilt out of the water to make the surface smooth, hang it on a hanger and do not wring it hard.