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

Weight reduce processing This process is recognized with alkali of weight treatment reduction. Understanding of is an operation of fabric with caustic soda at high pressure and temperature so that of polyester can be hidrolized become sodium tereftalat,its have dissolveness in water . Teknologi dan Rekayasa

The purpose of weight reduce process Weight of polyester fabric become reduced ,Handling become soft and surface of fabric become thin. Teknologi dan Rekayasa

Mechanism of weight reduce treatment Polyester of fibre hidrolized by using NaOH will be eliminated surface or decide tying between molecule that is by attacking part of surface skin from fibre later,then slow condensation come into the core of fibre. Teknologi dan Rekayasa

Schema process of weight reduce with caustic soda Teknologi dan Rekayasa

The methods of weight reduce process with caustic soda can be doing by : Exhaust methods Pad batch methods High temperature and pressure methods Pad steam methods Pad steam and pad baking methods Pad radiation methods Teknologi dan Rekayasa

Weight Reduction Process in Procedure Weight Reduce Recipe NaOH flake : 4 – 6 – 8 – 10 g/l Wetting agent : 2 ml/l Temperature : 70 – 80oC Time : 50 minute Liquor ratio : 1 : 30 Resep Penetralan CH3COOH : 3 ml/l Temperature : Room temperature Time : 10 minute Liquor ratio : 1 : 30 Teknologi dan Rekayasa

Procedure Operation Goods and chemical agent weigh as according to calculation of recipe NaOH flake ,wetting agent input to glass beaker ,stirer to spread flatten and condensation heated according to recipe Process during 50 minute Afterwards rinsing by cold water and hot water Then process neutralizing with acetate during 10 minute Afterwards the fabric rinsing by cold water and hot water Drying with stenter To weigh materials Calculated % heavy reduction which is heavy percentage shown of weight fabric is loss Teknologi dan Rekayasa

Schema Process Of weight Reduce Process of Tetoron Fabric NaOH Wetting Agent Fabric Rinsed by hot water and chill water Drying TemperatureoC 80 30 0 10 70 80 90 minute Time(minute) Schema Process Of weight Reduce Process of Tetoron Fabric Weight Reduce Process Netralizing CH3COOH Teknologi dan Rekayasa