Operation Pretreatment Process of Textile Finishing Technology SMKN

Operation Pretreatment Process of Textile Finishing Technology SMKN 1 KATAPANG KABUPATEN BANDUNG Kelas X Semester 1

Definition of Pretreatment textile processing Process pretreatment of textile is all mechanic and chemistry process to textile materials both for is made from natural and sinthetic fibre before dyeing, printing and finishing process , with purpose the process is fluently better and the result can which as expected. Teknologi dan Rekayasa

As a whole this process consist of desizing process, souring and bleaching. Pretreatment process basically aim to to removal all mpurities found on fibre ( especially cellulose) so that materials have degree of white, absorbent to dyestuff and value of DP(degree of polimerization) more the other purpose is to get bunchs of reaktif blocked previous to become opened. Teknologi dan Rekayasa

The raw material in generally contaning unwanted matter of fibres and the impurities of fibres. This impurities is : • Natural impurities is the dirt is emerge together with happening of fibres. For example : fat , oil wax on cotton, sirisin on silk, suint, fat and lanolin on wool. • Impurities from outside Dirt coming from outside and to stick at fibre, yarn or fabric , for example : oil, , dust , parts of leaf, branch, stains of oil from machine and etc. • The addition of impurities The addition material impurities for the fluency of process for example : oil for anti static agent at fibres, starch at warp of yarn, etc. Teknologi dan Rekayasa

The kinds of flow chart on process textile : 1)Flow chart of textile processing Tekologi dan Rekayasa

2)Flow chart of pre treatment of silk fibre/fabric Teknologi dan Rekayasa

3) Flow chart of pre treatment of wool fibre/fabric Teknologi dan Rekayasa

4)Flow chart of pre treatment of tetoton/cotton fabric Teknologi dan Rekayasa

Preparation of process be done by grey material before wet process or chemical process. Preparation of this process consist of opening and pile up, sewing, and inspection of cloth. Pile up is working to open cloth of grey which still in the form of roll tied , then to put in orderly heap above palet by horizontaly off attractively tip oves him with length sufficiently (+ 3 - 4 metre), withdrawal of cloth back part aim to to water down process writing of stitching and code or tacking on. Opening or of unrolling recognized with process expose of cloth have purpose to open cloth of rolling form become wide form so that the next process fluently better, then stacked by cart( each extension every piece have to be sewed). Process is doing by Opener or Unrolling machine. Teknologi dan Rekayasa

Ficture of pile up processing Description Picture a. Tip of cloth b. Tip of cloth jetty c. Tip of cloth to be sewing d. Palet. Teknologi dan Rekayasa

CODEFICATION Codefication is process to give a code at jetty and the end of grey fabric which have pile up by using permanent stationery. SEWING IS PROCESS OF CONECTING ON CLOTH BACK PART WHICH IS ONE WITH OTHER CLOTH BACK PART. PURPOSE OF THIS PROCESS IS : TO BE ABOVE CLOTH OF PALET BECOME ONE UNITY SO THAT AT THE TIME OF PROCESS WILL NOT BE BROKEN. Teknologi dan Rekayasa

Inspection of cloth is to checking grey of fabric which have been sewing as a mean to know clothfabric defected, long, wide, dirts, and know the existence of metal so that cloths to be processed really ready for processed, and don’t happened trouble during process take place. Teknologi dan Rekayasa

For exmple the manner of writing fabric code WV I , S 7500/25 TR, P= 250 m, 2/4 Grup B Meaning is : WV I = the fabric is made from weaving I machine S = type of plaite is satin 7500 = the total sheet of yarn of fabric wide 25 = pick/cm or total sheet of yarn percm TR = the warp is tetoron and the weft is rayon P 250 m = the long of fabric is 250 metre Teknologi dan Rekayasa

THE KINDS OF APPLIANCE LABORATORY TO THE PRACTICE OF LABORATORY NEEDED BY LABORATORY APPLIANCE WHICH ALMOST EVERYTHING WAS MADE FROM GOOD GLASS, SO THAT EITHER ITS USE AND CONSERVANCY, NEED HYGIENE, CORECTNESS AND BE CAREFULLY. Teknologi dan Rekayasa

The name of appliance laboratory 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Glass beaker Erlenmeyer Pipette Stirer bar Gourd Measure Bottle of Reagen Equipments of heater Thermometer Weights Measure glass. Teknologi dan Rekayasa