Device for preparing environment-friendly type bast fiber film

Abstract

The invention discloses an environment-friendly type bast fiber film preparation device, which comprises two feeding machines, a feed mixer, a crude opening machine, a fine opening machine, a vibrating air pressure bast feeding box, a carding machine, a mechanical cross lapper, an air-lay machine, an impregnator, a drying can type pre-drying pit, an air-pressure double-roller planishing mill, a surface spraying coating machine, a drying can type dying setting machine, a drafting side cut lap former and the other operation unit machines. Each unit-air conditioning adopts variable-frequency control and a synchronizer to control electric appliances, and each unit-air conditioning can be singly operated in high speed, and can be interlocked to operate with complete equipment. The invention has the advantages that fibrilia is delivered by an airflow pipeline on the crude opening machine, and between the crude opening machine and the carding machine, and the supply of raw material is continuous, net is combined in two times through a machine to pave net and airflow to form net, bast fiber film net has little density, even strength and stable quality, even coating layers are coated and sprayed on double faces of bast fiber film, and bast fiber film with different functions and usages can be made, continuous and stable full-automatic production of bast fiber film can be achieved.

Description

Technical field [0001] The invention relates to a production equipment for thin film materials, in particular to a complete production and preparation device for environmentally-friendly hemp mulch film. Background technique [0002] As plastic mulch is difficult to degrade, its long-term use has caused serious "white pollution" to our country's ecological environment. Therefore, the development of a degradable environmentally friendly plant fiber agricultural mulch is the main way to solve environmental pollution caused by long-term use of plastic mulch. The inventor has developed an environmentally friendly hemp mulch using plant fibers as the main raw material, and has applied for the invention patent of "an environmentally friendly hemp mulch and the hemp mulch made with it", and has been authorized (Patent No. ZL200410022948.3). The manufacturing process of the hemp mulch film of the invention patent is: the hemp fibers are mixed and opened, and after dust and impurities are...

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Problems solved by technology

But, the hemp edema film grammage that this inventive method prepares is only 28~50g / m 2 , the thickness of the film is only 0.22 ~ 0.31mm, and it is impossible to produce this kind of hemp mulch film by using the existing domestic non-woven equipment and technology for the production of non-woven fabrics, and it is even more difficult to achieve stable production, especially at present. Better equipment for post-processing, it is difficult to conveniently and flexibly spray various reagents on the surface of the hemp mulch film for waterproofing, insect resistance, and weed control, and to improve the mechanical properties of the hemp mulch film, to prepare waterproof, insect-proof, and weed control mulch films, and The technical goal of environmentally friendly hemp film products applied in food, medicine, packaging and decoration industries has greatly hindered the industrialization and promotion of this invention patent

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