Dissertation
Dissertation > Industrial Technology > Light industry,handicrafts > Textile industry,dyeing and finishing industry > Dyeing and finishing industry > Scouring and bleaching

Study on the Application of Hydrogen Peroxide Activator in the Pre-Treatment Process of Fabrics

Author ZhangZuo
Tutor LiHongWei
School Beijing Institute of Clothing Technology
Course Textile Chemistry and Dyeing and Finishing Engineering
Keywords Activator Hydrogen peroxide Short process Cold pad-batch Steaming Bleach
CLC TS192
Type Master's thesis
Year 2010
Downloads 234
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In this paper, a hydrogen peroxide activator A pretreatment in cotton fabric cold rolled heap , cotton / linen fabric steaming one-step pre-treatment , wool fabrics in the bleaching process , and optimized process conditions should be added to the activator . Cotton fabric cold pad-batch pretreatment process optimization : cold heap : the activator A 2g / L , H2O2 ( 30 % ) 40g / L , the pH value of 5 to 6 , refining agent FK - 03 5g / L, and batching time 4h ; alkali cooking : NaOH 10g / L detergent 3g / L , bath ratio 1:15,10 min , 100 ° C . The treated fabric whiteness 83.45 powerful 1197.87N, capillary effect 10.3cm/30min. Compared with the traditional process , do not use the stabilizer and caustic soda , batching time is significantly reduced , with significant energy saving advantage . Cotton / linen fabric steaming one-step pre-processing , optimization process : steaming : activator A 4 g / L, and H2O2 ( 30 %) of 30g / L , refining agent FK- 03 5g / L, and sodium silicate 10g / L , 100 ℃, 60min; washing : of Na2CO3 2g / L, and detergent 3g / L , bath ratio of 1:15,100 ° C for 10min . The fabric whiteness 82.76 treated , powerful 1069N , capillary effect 12.4cm/30min. Compared with conventional processes , the amount of caustic soda to zero , the steaming time , with a certain degree of energy saving advantage . Low temperature bleaching , wool fabric optimization process : the quality of the the activator A / hydrogen peroxide than 0.8 , H2O2 ( 30 % ) 9g / L , the pH value of 6 to 7 , JFC 2g / L , the sodium pyrophosphate 2g / L , bath ratio 1:40 , 30min , 60 ° C . The fabric whiteness treatment improved 13.42. Add activator A bleaching process is carried out in a low temperature, acidic conditions , more in line with the requirements of the wool on the bleaching conditions .

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