Method for preparing Chinese medicament dreg needling non-woven composite material

Abstract

The invention relates to a method for preparing a Chinese medicament dreg needling non-woven composite material, which is characterized by comprising the following steps of: firstly, preparing two same single-layer fiber webs namely an upper single-layer fiber web and a lower single-layer fiber web, and spreading a Chinese medicament dreg layer between the upper single-layer fiber web and the lower single-layer fiber web to ensure the upper single-layer fiber web, the lower single-layer fiber web and the Chinese medicament dreg layer are combined into a 'sandwich' composite material blank of which the middle part is filled with the Chinese medicament dreg layer; secondly, according to product requirements, combining a five-layer composite material blank consisting of three layers of fiber webs and two layers of Chinese medicament dregs filled in the three layers of the fiber webs, or combining a seven-layer composite material blank consisting of four layers of the fiber webs and three layers of the Chinese medicament dregs filled in the four layers of the fiber webs; and finally, selecting any one of three reinforcement modes of needling reinforcement, needling hot rolling reinforcement and needling hot air reinforcement to perform reinforcement so as to prepare the Chinese medicament dreg needling non-woven composite material. The material prepared by the method has better sound-absorbing and heat-shielding performance, and can be widely applied in the fields of house decorative materials, automotive interior decoration materials and the like. The method has the advantages of simple process, short flow, more selectivity, low requirement on raw materials, low cost and good product performance.

Description

technical field [0001] The invention relates to the field of preparation of non-woven composite materials, in particular to a method for preparing traditional Chinese medicine dregs needle-punched non-woven composite materials. The prepared material can be widely used in the fields of interior decoration materials and automobile interior materials. Background technique [0002] With the development of traditional Chinese medicine and health services, the application of Chinese herbal medicines and Chinese patent medicines is becoming more and more extensive, and the waste of traditional Chinese medicine residues is increasing day by day. According to statistics, the annual discharge of plant residues in my country alone is as high as 650,000 tons. Traditional Chinese medicine dregs generally have high water content and certain nutrients, and are easily corrupted, which will cause serious pollution to the environment. Therefore, the ecological utilization of traditional Chin...

AI Technical Summary

Problems solved by technology

This invention has a better effect of turning waste into treasure, but this invention has relatively high requirements for raw materials, that is, the residue of traditional Chinese medicine can only be used after being ground into powder, and secondly, it needs to use a large amount of auxiliary agents such as hot-melt powder and curing agent, so this invention The invention has defects such as high processing cost and complicated process