Operation Merseraize Process of Fabric Textile Finishing Technology SMKN 1 KATAPANG KABUPATEN BANDUNG Kelas X Semester 2

Merserizing Process Merserisasi is an operation of cotton materials with NaOH at selected temperature and selected time and at the time of which is same to be given by tension . Kostisasi is an operation of cotton materials with NaOH at selected time and temperature but without tension. Teknologi dan Rekayasa

Purpose of merserisasi Increase absorpsion to dyestuff Increase in luster Increase of mildness Improvement stable dimension and levelling dyeability Teknologi dan Rekayasa

Effect on merserize process: The Chemical substances Temperature Process Time process Tension Quality of materials Materials weave. Teknologi dan Rekayasa

Mechanism Process of mercerize In general process merserizing by using caustic soda solution at room temperature by or without tension is then cleaned on the same time of that happened release of fibre rotation section of fibre become more rounded. Teknologi dan Rekayasa

Change in a cross-section of a cotton fiber during a mercerization treatment. 1-5 Swelling process in an alkaline solution 6 Removal of alkali by water substitution 7 After drying Teknologi dan Rekayasa

The kinds of merserize Dry Mercerizing Mercerizing process doing to material in dried conditiom Wet mercerizing Mercerizing process be done at materials after wetting with water ( at pading process) Teknologi dan Rekayasa

SCHEMA OF MERSERIZE MACHINE Teknologi dan Rekayasa

Mercerizing Process in Procedure Recipe Mercerizing Process NaOH : 20 % Time : 20 – 30 – 40 – 50 detik Temperature : 20oC Netralizing Process Acetic acid : 5 % Temperature : at room temperature Time : 15 minute Teknologi dan Rekayasa

Procedure Operation - Basin for merserisasi prepared to be filled with NaOH flake and calculated as according to amount water at basins - Then arrange temperature 20oC, by adding ice water - Soak fabric in solution of merser use tension according to time at recipe - Clean fabric use hot water and cool water - Prepare neutralizing liqour of acetate acid 5 % - Soaking cloth in neutralizing solution at room temperature during 15 minute - Clean fabric use hot water and cool water - Fabric got out of by frame - Then materials dried by using stenter,then doing test of fabric is strength test and absorpsion . Teknologi dan Rekayasa

Flow chart process mercerization Mercerize process: Concentration of NaOH : 20 % Temperature : 20oC Time : 20 – 50 second Rinsing by hot water and chill water Netralizing by CH3COOH 5 % Time : 15 minute Fabric got out by frame Washing → drying The test of fabric : strengthness dan absorption of fabric Teknologi dan Rekayasa