Study On Preparation And Properties Of Anti-bacterial And Anti-itching Viscose Fibers Of Compound Herbal Medicine

A large number of herbal medicines with antimicrobial,antipruritic and repairing effects were screened,and the herbal compound of antimicrobial and antipruritic plants was selected according to the idea of "jun Chen Zuo shi" in traditional Chinese medicine.The viscose fibers with anti-bacterial and anti-pruritus functions were prepared by blending the aqueous extract of Chinese herbal medicine and the spinning solution of viscose fibers.The basic properties and anti-bacterial and anti-pruritus functions of the viscose fibers were tested and evaluated.Firstly,three kinds of compound A,B and C were screened and combined.The antipruritic effect of three kinds of compound A and B was judged by the inhibition effect of itching factors.It was concluded that the inhibition effect of compound A and compound B was better than that of compound C.Compound A had a good inhibition effect on DPPH free radicals and compound B had a good inhibition effect on hyaluronidase.Secondly,three kinds of compound extracts were weighed to prepare water solutions with different mass ratios,and then added to the viscose spinning solution to mix evenly.The viscosity values at different mixing ratios and the relationship between the viscosity values and the dissolution temperature were tested.The results showed that the higher the mixing ratio,the higher the viscosity value,the lower the dissolution temperature.Thirdly,in a reasonable range,the combined extracts of compound A and compound B were mixed with viscose spinning solution at four different mixing ratios(A1,A2,A3,A4,B1,B2,B3,B4)respectively,and the blend membranes with different proportions were prepared.The basic properties and antimicrobial functions of the blend membranes were tested,and the B3 mixing scheme was preliminarily optimized.Then,the blend spinning solution was prepared according to the B3 ratio scheme,and the anti-bacterial and anti-itching viscose fibers of compound Chinese medicines were spun.The basic properties of the obtained fibers were tested by relevant instruments.The results showed that the anti-bacterial and anti-itching viscose fibers of compound Chinese medicines contained the active ingredients of compound Chinese medicines;their dry strength was 2.38 cN/dtex and wet strength was 1.64 cN/dtex;their hygroscopicity was improved to some extent,their friction properties were changed,and their crystallinity was basically the same as that of ordinary viscose fibers.Finally,the anti-bacterial and anti-itching functional fibers of compound plant Chinese medicine viscose were tested by subjective and objective methods.The results showed that the anti-bacterial and anti-pruritus functional fiber of compound herbal medicine viscose had a good anti-bacterial function,and the anti-pruritus performance of non-woven fabric made of anti-bacterial and anti-pruritus functional fiber of compoundherbal medicine was tested by patch test.The results showed that the red value index of skin decreased by 20% after 45 minutes,and that of ordinary viscose non-woven fabric decreased by 13%.The decrease rate of red value index of non-woven viscose fibers was higher than that of ordinary viscose fibers,which indicated that the anti-bacterial and anti-pruritus functional fibers of compound herbal medicine viscose had good anti-pruritus effect.The inhibition rate of ultrasonic-assisted ethanol extract of compound herbal medicine viscose anti-bacterial and anti-pruritus functional fibers in vitro was88.5%,while the inhibition rate of water solution of pure herbal medicine extract was95.1%.Compared with the water solution of pure Chinese herbal medicine extract,it only decreased by 6.6%,indicating that the anti-bacterial and anti-pruritus functional fiber of compound Chinese herbal medicine viscose is rich in the effective ingredients of Chinese herbal medicine,and has good anti-pruritus effect.