Natural fiber felt and production method thereof
OwnerXiaofeng Tanginventor
Life of this patent
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Abstract
A natural fiber felt is provided, which is a film formed by processes of binding a natural fiber net with a binder, extruding, drying and shaping the natural fiber net. A surface of the film is coated with a waterproof layer. The foam binder is formed by combining modified starch serving as a binder and urea serving as a foaming agent with water. A water-repellent agent fruit wax emulsion is employed to form the waterproof layer. The natural fiber net is carded by a carding machine at one time, and the foam binder is sprayed onto the natural fiber net to bind the natural fiber net so as to form the film. The product has characteristics of ultra-thinness and high strength with good performances on heat preservation, moisturizing ability, waterproof and air permeability.
Claims10
A natural fiber felt, which is a film formed by processes of binding a natural fiber net with a binder, extruding, drying and shaping the natural fiber net, wherein a surface of the film is coated with a waterproof layer;
- wherein the natural fiber net is a fiber net formed by carding natural fibers at one time using a carding machine, and the natural fibers are one of linen fibers, ramie fibers, cotton fibers or combinations thereof;
- wherein the binder is a foam binder which is a mixture comprises a binder, a foaming agent and water;
- every 100 parts by weight of foam binders contain 8 to 10 parts by weight of binders, 1 to 3 parts by weight of foaming agents and the balance being water;
- and the binder is modified starch, and the foaming agent is urea;
- and wherein the waterproof layer is formed by spraying water-repellent fruit wax emulsion onto the surface of the film.
Dependencies are inferred from the claim text.