00 Standard Recipe : Water ——————–97 gallons Sodium silicate ——— 15 pounds Caustic Soda ———— 2 pounds Hydrogen Peroxide —- 1.5 pounds Working Procedure : The fabric padding with impregnation box Then the fabric is stored in the J-box for 60 to 90 minutes at 95-100ºC temperature. Then wash with 2% …
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00 Standard Recipe : Hydrogen Peroxide ———————— 3-5% Sodium Silicate —————————– 2-3% Caustic Soda ——————————– 0.3-0.8% Soda Ash ————————————- 0.6-1.0% Wetting Agent ——————————- As Required Working Procedure Normal 0 false false false MicrosoftInternetExplorer4 The Chemical are dissolved in a mixing tank Transfer to the Kier Required Water added to fill one third of the Kier …
Continue reading Bleaching In Kier Boiler00Required Chemical Hydrogen Peroxide (H2O2) Stabilizer Caustic Soda Soda Ash Wetting Agent Function Of Required Chemical Hydrogen Peroxide: It ionize as H2O2——— (H+) and (HO2-), where HO2- is responsible for bleaching operation. Stabilizer : To stabilize the reaction H2O2———( H++ HO2– ) Due to H2O2 reacts with fabric randomly. By using stabilizer the treatment becomes …
Continue reading Hydrogen Peroxide Bleaching00Calcium Hypochlorite or Sodium Hypochlorite may be used in Hypochlorite bleaching. Calcium Hypochlorite has cheap sources and hence less expensive than sodium Hypochlorite. But sodium Hypochlorite has some technical advantages. q Common Recipe : Hypochlorite Wetting Agent Soda Ash Temperature Bleaching Action: When calcium hypochlorite or sodium Hypochlorite is hydrolyzed, hypochlorous acid is formed which …
Continue reading Hypochlorite Bleaching00 Bleaching Reduction of natural coloring matter to produce white fabric and must be accomplished with a minimum damage of cotton being bleached. Objectives of Bleaching To impart a pure permanent and basic white effect to the fabric. To increase the absorbency of the fabric. To produce white finishes To make textile material suitable …
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