Study On High Efficient And Short Process Pretreatment&Dyeing Technology Of Cotton Cheese

This thesis is devoted to the research of problem of energy consumptionpretreatment of cotton cheese and outer-central-inner layers chromatic difference incheese dyeing, This subject pre-treatment process of a short and efficient process canbe carried out pre-treatment, the cotton cheese cryogenic activator system used underlow temperature conditions has a good bleaching effect, it can be reduced whileensuring the effect of the pre-treatment temperature of the pre-treatment, shorten thepretreatment time, so as to achieve the purpose of reducing the production of energy;experimental Select leveler WXQ applied to cotton cheese reactive dyeing colorissues effectively improve cotton cheese dyeing within-in-the outer layer, studiedthe dyeing cotton cheese before processing by the short and efficient processperformance.First of all,the influences of low temperature bleaching activators onpretreatment of cotton cheese was discussed. The authors choose different types oflow-temperature activator complex, through the study of the complex system of thepre-treatment effects (such as whiteness, gross efficiency and powerful), to determinethe best low-temperature activator complex system MR (hereinafter referred to ascryogenic activators MR), and with commercially available low temperature activatorDMB808effect of contrast, the results show that the low-temperature activator MRhas a good bleaching effect, in low temperature conditions before treatment effectthan the commercially available low temperature activator DMB808. MR used inlow-temperature activator cotton short and efficient process of cheese beforetreatment, after treatment through a pre-test the yarn whiteness and capillary effectand strength and other indicators on the pre-treatment process (such as lowtemperature activator MR dosage, scouring agent GDY dosage H2O2dosage, NaOHdosage, pre-treatment temperature and time) to optimize, pre-treatment process, andwere characterized by low temperature activator MR mechanism be short and efficientprocess optimization. Contrast, short and efficient process pre-treatment effects ofconventional pretreatment effect, and can save about15%of the total cost ofproduction, to meet the low-temperature, time-saving, efficiency requirements In addition, the contrast and analysis of performance, cost between highefficiency and shortened pretreatment and routine pretreatment, Tests show the theresult of both of them test was the same.It is greatly beneficial for product costs at thetime of assure yarn quality.Improved experiment of using the leveling agent WXQ in cheese dyeing to solvethe problem of outer—central—inner layers chromatic difference. experimentalstudy of the leveling agent WXQ chosen dyeing performance, results show thatleveling agent WXQ can reduce staining initial dye uptake rate, better leveling effectand does not affect dyes final dyeing rate and yarn line color yield depth. The levelerbe applied after a short and efficient process before processing cotton cheese reactivedyeing, the dyeing process (such as the the leveling agent WXQ amount of salt, alkaliadded) optimization, to determine the optimal dyeing process and its dyeingthermodynamics study results show that The use leveler WXQ, does not affect the dyeadsorption characteristics, only to change the rate of adsorption of the dye. Choose avariety of color number of short and efficient process of pre-treatment and traditionalcotton pretreatment cheese yarn the pilot batch dyeing experiment, testing theperformance of different cheese dyeing contrast, results showed that after a short andefficient process. pre-processing cotton cheese dyeing levelness and color fastnesstraditional pre-processing cotton cheese quite significantly smaller than the latter, butthe former yarn strength loss rate.Short and efficient process of pre-treatment process in the premise to ensure thatthe effect of pre-treatment does not affect the subsequent dyeing properties of cottoncheese, and can reduce the yarn strength loss after moist heat treatment, to ensure thequality of the yarn and subsequent processing quality, reached reduce energyconsumption and improve efficiency.