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Calculation of Bleaching Recipe

Calculation of Bleaching Recipe
Mustaque Ahammed Mamun
Department of Textile Engineering
Dhaka University of Engineering & Technology (DUET)
Cell: +8801723300703
Email: mamuntex09@gmail.com



Bleaching
Bleaching is chemical treatment employed for the removal of natural coloring matter from the substrate. Also absorbency is increased because sodium hydroxide is used to increase the pH value and which remove oil, fat wax etc. In this article I will calculate amount of water and chemical used in cotton bleaching.
Calculation:

Sample weight = 9.64 gm

                  Total liquor x Recipe amount (gm/L)
Chemical = .....................................................
                         1000 x Stock Solution %


Total liquor = 9.64 x 10 = 96.4 ml

                 96.4 x 9
H2O2 = .................... = 8.676 ml
              1000 x 10 %

                   96.4 x 4.5
Stabilizer = ................... = 4.338 ml
                 1000 x 10 %

                    96.4 x 8
NaoH =............................. = 7.712 ml
               1000 x 10 %

                     96.4 x 5
Na2CO3 = .................... = 4.82 ml
                  1000 x 10 %

                      96.4 x 1
Detergent = .................... = 0.964 ≈ 1 ml
                  1000 x 10 %

                                    96.4 x 1
Sequestering agent = ..................... = 00.964 ≈ 1 ml
                                 1000 x 10 %

                            96.4 x 1
Wetting agent =........................ = 0.964 ≈ 1 ml
                         1000 x 10 %

                           96.4 x 1
Anti creasing = ....................... = 0.964 ≈ 1 ml
                         1000 x 10 %

Water =96.4- (8.676+4.338+7.112+4.82+1+1+1+1) = 67.454 ≈ 68 ml 
 

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