Research And Development Of Barrier Fabric On Kapok Property

In recent years domestic and foreign scientists pay much attention to barrier fabric.Thebarrier protective fabric with a fire retardant, biochemical and physical barrier effect can beobtained by using a variety of process routes such as fiber modification method, fabric finishingmethod, structural optimization method.And as a natural fiber, kapok fiber with the characteristicsof ultra-fine,high hollow ration, antibacterial,anti-mite, large specific surface area, can be wovenhigh density,high resilient,anti-mite and anti-bacterial fabric. These are conducive to thedevelopment of kapok barrier fabric to both the biochemical and physical properties.The study plans to develop and use the nature fiber in the new field,widen the function andadd values of the nature fibers.Starting from fibers selecting,yarns optimization,it focused on howto use image processing software to test radial distribution quantitatively in order to obtain naturaltextiles with barrier functions,which can meet the demand for textile comfort,high quality andother aspects.This study explored the kapok fiber compression performance for barrier fabric,got a generalunderstanding of hollow reply situation,and studied the factors affecting the compressionperformance; analysed quantitatively the radial distribution of different yarns spun by differenthollow recovery fibers by using Photoshop pixel method innovatively; this study,on theexperimental basis, have given the evaluation of anti-drilling performance, anti-mite performance,bending and shear performances, and laied a good foundation for future study. The paper foundthat:(1) High hollow kapok fiber assembly yielded a clear platform in the compressivestress-strain curves, which was mainly due to the tube elastic instability led from high hollowstructure. After amplification the compression curve, it was found the presence of anapproximately linear region, transition region, the modulus linear increasing zone duringcompression. According to the stress of the corresponding yield platform, which showed0.40N/cm2, the critical pressure maintaining the kapok hollow structure can be calculated. It providedquantitatively study direction of kapok yarn hollow situation, while had great guidance significance to kapok products design practice.(2) Using Photoshop software can directly observe and quantitatively test the yarn transversalarea of various fibers, including non-circular transversal area of the fibers, and then obtain a radialdistribution of fibers in the yarn. In cotton and viscose blended cotton ring spun yarn,kapok fiberyarns transfered to surface significantly, kapok fiber Hamilton transfer index was up to about20%,kapok fiber blending ratio in the surface was much larger than the average blending ratio, it wasthe result of the combined effects of kapok fiber performance such as shortness,smooth surface,softness and so on.In blended yarn,the kapok fiber appeared bundle phenomenon, kapok fiber inthe surface of the yarn maintained a higher hollow and kapok fiber itself had the "potential ofhollow reply.(3) Selecting14.58tex kapok/cotton (20/80) blended yarn from above,weaving together with11.66tex cotton warp yarn,can obtain a good down-proof fabric with low bending stiffness,softfeel, fine,and clean surface.Isolating mite effect was up to more than90%, with good biochemicaland physical barrier properties, the application value was big.