| Fleece knitted fabric,as one of the main fabrics of outdoor casual wear and sportswear,has the characteristics of soft texture,good handle,and good warmth.However,due to the low twist of the fleece yarn of the fleece knitted fabrics,its surface is fluffy.When people wear clothes which are made of fleece knitted fabrics,due to the friction between the fleece surface of the clothes and other clothes they wear.The fiber hairiness will adhere to other clothes they wear,affecting the overall beauty of the clothes.When people wash clothes,the fallen hairiness will flow into the lake and the sea to cause secondary pollution of the environment,and the physiological function of the organisms will be affected after the creatures in the lake and the sea swallow the hairiness.Therefore,research on this fabric is needed to reduce fabrics hairfalling.At present,there are few research on the anti-hairfalling properties of fleece knitted fabrics.Therefore,plasma treatment,microwave treatment and acrylic resin finishing methods were used to finish the surface of the fabrics,and the anti-hairfalling mechanism of each method is systematically discussed and the influence of each method parameter on the anti-hairfalling performance of the fabrics is studied.Firstly,the influence of friction times and friction pressure on the fabric loss rate of the fuzz pilling instrument is discussed,and determines the experimental parameters of the method: the number of frictions 500 times and the friction pressure of 790 c N,and the subsequent hairfalling test experiments are carried out with this parameter.In addition,this paper designs a method of withdraw force to indirectly characterize the anti-hairfalling properties of the fabrics,and the greater the withdraw force,antihairfalling properties of the fabrics.The plasma treatment electrical power and treatment time were selected as experimental parameters to sort out the fleece knitted fabrics,and through the observation of the fiber micromorphology of the fabrics before and after treatment,the surface roughness,withdraw force,hairiness length and weight loss rate of the fabrics are tested,and the study showed that the anti-hairfalling mechanism of the plasma treatment method was to increase the roughness of the fiber surface through etching,increase the withdraw force of fleece surface hairiness of the fabrics,and break the fleece surface hairiness of fabrics,so as to improve the anti-hairfalling properties of the fleece knitted fabrics;Selecting microwave treatment electric power and treatment time as experimental parameters to sort out the fleece knitted fabrics,through the observation of the fiber micromorphology of the fabrics before and after treatment,the surface roughness,withdraw force,hairiness length and weight loss rate of the fabrics are tested,and the study showed that the anti-hairfalling mechanism of the microwave treatment method is to increase the roughness of the fiber surface through radiation,increase the withdraw force of fleece surface hairiness of the fabrics,and shorten the length of the fleece surface hairiness to improve the anti-hairfalling properties of the fleece knitted fabrics;The acrylic resin finishing soaking concentration and soaking time are selected as the experimental parameters to sort out the fleece knitted fabrics,and the surface roughness,withdraw force,hairiness length and weight loss rate of the fabrics are tested by observing the micromorphology of the fiber before and after finishing.Studies have shown that by bonding fibers,increasing the withdraw force of the upholstery surface hairiness,and reducing the exposure of fabric hairiness,the anti-hairfalling properties of fleece knitted fabrics is improved.Through the analysis of orthogonal experimental protocol,the optimal plasma,microwave and anti-hairfalling finishing process parameters can be obtained: electrical power 1.0k W,time 15 s.The weight loss rate of treated fleece knitted fabrics under this condition was reduced by 48.3% compared with untreated fleece knitted fabrics.The optimal microwave anti-hairfalling process parameters are: electric power 500 W,time 3min,the weight loss rate of fleece knitted fabrics finished under this condition is 77.4% less than that of untreated fleece knitted fabrics;The optimal acrylic resin finishing anti-hairfalling process parameters: the soaking concentration is 14g/L,the soaking time is 30 min,and the weight loss rate of the fleece knitted fabrics finished under this condition is reduced by 73.1% compared with the unfinished fleece knitted fabrics.In order to obtain the optimal fabrics antihairfalling process parameters,the parameters under each step of plasma finishing,microwave finishing and acrylic resin finishing methods are integrated,and the optimal anti-hairfalling finishing process parameters of these three methods were obtained by orthogonal experiments: plasma finishing electrical power is 1.0k W,finishing time is15 s,microwave finishing time is 1min,finishing electrical power is 500 W,acrylic resin soaking concentration is 14g/L,soaking time is 75 min.Under this process condition,the weight loss rate of the fleece knitted fabrics is reduced by 84.9% compared to the unfinished fleece knitted fabrics.Finally,the moisture permeability,air permeability,wicking effect,contact angle,handle and tensile property of the fleece knitted fabrics prepared under the optimal antihairfalling process conditions are tested.The results showed that the moisture permeability,contact angle and wicking height of the treated fleece knitted fabrics are respectively reduced by 15.5%,24.9% and 32.9% under the optimal anti-hairfalling process conditions compared with the untreated fleece knitted fabrics,and there is no significant difference in the handle and tensile properties of the treated fleece knitted fabrics compared with the untreated fleece knitted fabrics.In summary,plasma treatment,microwave treatment and acrylic resin finishing methods can effectively improve the anti-hairfalling properties of the fabrics.By integrating the parameter conditions of these three methods,it can obtain fleece knitted fabrics with good anti-hairfalling properties and convenient industrial production. |
