Preparation system and method of high-toughness medical coating non-woven fabric

Abstract

The invention belongs to the technical field of medical coated non-woven fabric preparation, and particularly relates to a high-toughness medical coated non-woven fabric preparation system and method.The high-toughness medical coated non-woven fabric preparation method comprises the following steps that raw materials including, by weight, 15-20 parts of polybutylene terephthalate, 25-30 parts of polycaprolactam powder, 5-10 parts of polycaprolactam powder, 5-10 parts of a plasticizer, 5-10 parts of a lubricant, 1-2 parts of a lubricant and 1-2 parts of a lubricant are mixed, stirred and mixed, and the mixture 20-25 parts of high-elasticity polyurethane, 5-10 parts of a polyurethane antioxidant, 5-10 parts of magnetized water and 10-15 parts of a defoaming agent; according to the receiving device used in the invention, through the arrangement of the separating plate, the separating plate cuts and separates the fiber net adhered to the surface of the roller, so that the fiber net is completely separated from the surface of the roller, on one hand, the phenomenon that the fiber net is adhered to the surface of the roller and is broken during separation is avoided, and on the other hand, the phenomenon that the fiber net is left on the surface of the roller is avoided; therefore, the melt-blown fiber net is continuously accumulated at the residual position of the fiber net on the surface of the roller, the melt-blown fiber net cannot be completely separated, and the vicious circle that the fiber net cannot be completely separated is avoided.

Description

technical field [0001] The invention belongs to the technical field of preparation of medical coated non-woven fabrics, and in particular relates to a preparation system and method of high-toughness medical coated non-woven fabrics. Background technique [0002] Non-woven fabric refers to a non-woven fabric, which is a new type of fiber product with a soft, breathable and flat structure; in the existing industrial production technology, the production of non-woven fabrics is often carried out by the melt-blown process, but for traditional Technology, the raw material is melt-blown into a thin stream of fibers by a melt-blown machine, and sprayed on the surface of the roller and covered into a fiber web, and finally the fiber web is separated from the roller surface and consolidated into a non-woven fabric, but the solidification of the roller surface is formed. Because the fiber web adheres to the surface of the roller, the fiber web is broken during the process of separatin...

AI Technical Summary

Problems solved by technology

[0002] Non-woven fabric refers to a kind of non-woven fabric, which is a new type of fiber product with soft, breathable and planar structure; in the existing industrial production technology, the production of non-woven fabric is often carried out by melt-blown technology, but for the traditional Technology, the raw material is melt-blown into a thin stream of fibers by a melt-blown machine, sprayed on the surface of the roller and covered with a fiber web, and finally the fiber web is separated from the surface of the roller and reinforced into a non-woven fabric, but the solidification of the roller surface Due to the adhesion of the fiber web to the surface of the roller, the fiber web is broken during the process of separating from the roller, resulting in the inability of the fiber web to be completely separated, which in turn affects the reinforcement of the non-woven fabric, resulting in waste of raw materials

[0003] In the prior art, there are also some technical solutions about a preparation system and method of a high-toughness medical coated non-woven fabric. For example, a Chinese patent with application number CN201610162565.9 discloses a high-barrier antibacterial The non-woven fabric and its preparation method, the specific steps are as follows: (1) Weigh 30-50 parts of polyadipate / butylene terephthalate, 20-30 parts of polylactic acid and 30-40 parts of polypropylene respectively by weight. Parts are fully mixed to obtain mixture A; (2) the mixture in step (1) is blended with 1-4 parts of antistatic agent and 0.5-2 parts of antibacterial agent, and then extruded by twin-screw extruder Granulating to obtain a blend; (3) vacuum drying the blend in step (2), and the dried blend is formed by heating, melting, extruding, stretching, cooling, and self-bonding through a screw extruder Non-woven fabric; (4) one side of the non-woven fabric obtained by step (3) is sprayed with an anti-radiation layer, and finally put into a drying box to dry and set; Thereby improving the anti-radiation performance of the non-woven fabric; but this technical scheme does not consider the problem that the melt-blown non-woven fabric is adhered to the surface of the roller, so that the non-woven fabric is broken in the process of separating from the roller, and then Limitations caused by the technical solution

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