Research On Scouring And Bleaching Process Of Hemp Rove

With the continuous development of the modern textile products technology,intrinsic functional and excellent wearability of hemp fiber products have received adequate display.In recent years,with the level of awareness raising,as well as the "green" the growing demand for textile products,eco-textile fiber hemp as a raw material,once again aroused people's concern.Hemp fiber with wet absorption,air permeability, anti-UV,anti-static and other ecological characters,as well as antibacterial,antimicrobial and other natural health functions,is accordant with the idea of today's green consumption.In particular,hemp fabric with a good comfort(no itching feeling) and the health are quite popular among the consumers and make it have a wide range of applications in Clothing and Accessories Home Textiles and other fields.Roving hemp's cooking and bleaching is the most important processes in wet spinning process,and enhance its stability after the procedure of the quality of products play an important role.This is subject to the purpose-oriented,reasonable to cook traditional base, sub-drift,oxygen bleaching process three combined to cook,bleaching of the respective principles and a step to remove the object,and the abolition of harmful toxic Sodium chlorite bleaching process and shorten the process,saving economic costs.Alkaline hydrogen peroxide and interaction,not only to play alkali to remove cannabis in the glial, hemicellulose,lignin and other impurities,and decomposition of hydrogen peroxide to provide a basic environment in which the base and the role of hydrogen peroxide to achieve Maximum effectiveness. Hydrogen peroxide in the acid medium is very stable,very low rate of decomposition,and in the alkaline medium can be activated alkali, hydrogen peroxide solution from the molecules can be bleached hemp fiber,it is particularly important is the oxidation of lignin,lignin is oxidized after Can be dissolved in a bath of oxygen alkali solution in order to better contribute to the removal of lignin and other impurities, while some of the effective use of additives,the oxygen-alkali bath scouring and bleaching has played a very good response to the stability of the And protection of the role of cellulose.The rate of warming,the heating process control in particular,make Oxygen-alkali bath ideal to achieve the best effect.In the oxygen-alkali bath scouring and bleaching process,involving the main process parameters are NaOH concentration,H2O2 and the amount of processing time,in order to find the optimal process parameters through the three-second rotating generic portfolio optimization regression analysis to explore Various factors on the hemp fiber technology residue of glue,split,breaking strength,elongation at break,brightness,optimized testing,calculation and analysis,the optimal process.As the production conditions and restrictions on production technology,chemical reagents used in the production processes meet requirements,often causes environmental harm of a certain role.This article on how to reduce consumption and lower costs,reduce pollution, resulting in a larger economic,social and ecological benefits,the use of new low-pollution YDM-S scouring agents and YDM-B-oxygen bleaching agent scouring and bleaching roving marijuana By orthogonal test design,analysis and comparison of various indicators of program evaluation,optimal process.After scouring and bleaching the fibers division and the degree of intensity must also be able to meet the requirements of spinning,to verify its feasibility test.