Structural Design And Characteristics Of Spunlaced Nonwovens In The Field Of Single Guide Fluid

Spunlaced nonwovens are a new type of material with a simple processing technology and a wide range of uses,especially cotton spunlaced nonwovens with cotton fibers as processing raw materials.They have a wide range of uses in various industries.There are more and more applications of cotton spunlaced nonwoven materials at home and abroad,but the unidirectional conductance of cotton spunlaced nonwoven materials under different liquid environments has rarely been studied.Model design and Inquiry is rarely involved.The purpose of this project is to study the performance of pure cotton spunlaced nonwoven materials in this field,and propose the design and production basis for pure cotton spunlaced nonwoven materials in the complex liquid environment in the future.The structure design and water-repellent finishing process of pure cotton spunlaced nonwoven materials are one of the foundations and key points to achieve the performance of unidirectional liquid.The pure cotton spunlaced nonwoven materials have been widely used in medical treatment and other fields.Residual,reverse osmosis and other issues have always been flawed,and in the process of use,it is easy to appear too dry or too wet.Aiming at the problems that have arisen,one of the research focuses in this paper is to study the mechanism and process of unidirectional fluids using pure cotton spunlaced nonwovens as the substrate.Another research focus of this topic is to explore the effects of different water-repellent finishing agents on the properties of cotton spunlaced nonwovens.This paper studies from the following three aspects: first,to optimize the water-repellent finishing process;second,to analyze the structure and influencing factors of pure cotton spunlaced nonwovens in the field of unidirectional fluid;Study on the performance of spined nonwovens after finishing.This paper studies from the following three aspects: first,to optimize the water-repellent finishing process;second,to analyze the structure and influencing factors of pure cotton spunlaced nonwovens in the field of unidirectional fluid;Study on the performance of spined nonwovens after finishing.By optimizing the concentration of C8 organic fluororesin and baking temperature,the water-repellent process of cotton spunlace nonwoven material was optimized.When the finishing agent concentration is 35 g / L,the baking temperature is 110 ° C,and the baking time is 2min,the treated cotton spunlace nonwoven material has the best water repellent effect,and the contact angle at this time is 116.2°.C8 organic fluororesin has chemically reacted with cotton spunlace nonwoven material,forming a new chemical bond.Abrasion resistance experiments show that friction does not affect the water-repellent effect of cotton spunlace nonwovens.Through the combination of theoretical models and experimental verifications,the factors affecting the unidirectional fluid capacity of cotton spunlaced nonwovens were studied.By calculating the force of the physical model,without considering the material characteristics of the pure cotton spunlaced nonwoven material and the systematic errors that occur during the process,the basic unit of pure cotton spunlaced nonwoven material structure can be The analysis concludes that the triangular perforation model has a better unidirectional fluid effect.When the pore size is 3mm and the hole spacing is 2mm,the unidirectional liquid-repellent ability of the pure cotton spunlaced nonwoven material after water repellent treatment is the best.Research on the water-repellent performance of pure cotton spunlaced nonwoven materials,it can be found that after the water-repellent treatment of pure cotton spunlaced nonwoven materials with fluorine-containing organic fluorine resin,the surface morphology of the internal cotton fibers changed,and the surface of the cotton fibers became more smooth.The cotton spunlaced nonwoven material itself was slightly dispersed.The mechanical property test shows that the pure cotton spunlaced nonwoven material after C6 organic fluorine resin finishing has weak mechanical properties.Other test results show that the pure cotton spunlaced nonwoven material after C8 organic fluororesin finishing has lost its wicking ability and is a pure cotton spunlaced nonwoven material with full water repellency.The cotton spunlaced nonwoven material treated with C6 organic fluororesin is partially water-repellent.By studying the structural characteristics and performance of pure cotton spunlaced dnonwovens,we have deepened our understanding of the unidirectional fluid performance of spunlaced nonwovens in complex liquid environments.