Study On Fuzzing And Pilling Properties Of Colored Cotton Blended Knitted Fabrics

The fuzzing and pilling performance,influence factors,anti-pilling finishing and wearing property of colored cotton blended knitted fabrics were studied in this paper in order to improve its anti-pilling performance, meanwhile,its ecological and environmental friendly properties and good wearing properties were ensured.Colored cotton,born with natural color, whose products don't require dying process,is a new kind of environmentally friendly fiber.So the research on colored cotton and its products will bring us ecological,economical and social benefits.First,by selecting cotton knitted fabric as a comparing specimen with colored cotton blended knitted fabric,we studied the fuzzing and pilling performance of colored cotton blended knitted fabrics,which blend with cotton,Tencel,Modal,Richcel and Milk fiber.The experiment indicated that colored cotton knitted fabrics began to appear pills fast,the number of pills was large and the average weight of pills was light, meanwhile the procedure of pilling lasted long time and the pills dropped slowly.So the fuzzing and pilling performance of colored cotton blended knitted fabrics are worse than cotton knitted fabrics.Second,the fuzzing and pilling mechanism of colored cotton blended knitted fabric were analyzed,we found that the pilling periods of colored cotton blended knitted fabric include four periods,fuzz formation, fuzz entanglement,pill growth and pill drop.The results showed that colored fiber was easy to slip out from the fabrics,and entangle with the other blended fibers to form pills,because of its short length,fewer natural curl,low friction coefficient,and the distribution of outer yarn.In addition,the factors that influence the fuzzing and pilling of colored cotton blended knitted fabrics were studied,including different fiber properties,yarn properties,fabric structures,finishing and washing times.The mechanical properties of six kinds of fibers blended with the colored cotton were tested,and the basic parameters and mechanical properties of twelve blended yarns were measured as well.The different knitted fabrics were weaved and treated with different methods,such as cellusoft CR,water-based polyurethane finishing and the compound finishing of the both.The fuzzing and pilling performance of the fabrics with different wash times were studied.The results showed that the part that support the pill were mainly Tencel,Modal,Richcel,Milk,as well as fine denier polyester,the reason may be that these fibers possessed better mechanical properties,such as higher breaking strength,breaking elongation and better fatigue-resistant properties.The high yarn twist, low hairiness and unevenness will improve the anti-pilling performance of colored cotton blended knitted fabric,and by changing yarn structure, the spinning method is one of the significant influence factors,and the Jet-Vortex spinning colored cotton/Modal blended knitted fabric hold the best anti-pilling performance.The tight fabric structure,flat surface and good dimensional stability will also improve the anti-pilling performance of colored cotton blended knitted fabric.Through the finishing with cellusoft CR,water-based polyurethane,as well as cellusoft CR→water-based polyurethane,the anti-pilling performance of the fabrics were improved effectively,and the compound finishing was the best one. With the increase in the times of washing,the fabric structure became looser,and the fuzz on fabric surface gradually grew longer and denser, so the anti-pilling performance of the fabric declined,and the anti-pilling performance of the fabric treated with cellusoft CR declined smaller than the fabric treated with water-based polyurethane.At last,the wearing properties of colored cotton blended fabrics were tested and analyzed after anti-pilling finishing.Bio-enzyme polishing fabric showed better breath,moisture permeability and soft handle compared with the untreated fabric.The opposite effects appeared after water-based polyurethane finish.The combined finishment of bio-enzyme polishing and water-based polyurethane endowed the fabric with soft handle and comfortable wearing properties.In addition,the anti-pilling property was improved significantly.