TT 232 N TEXTILE PRINTING 3-0-3 R.B.CHAVAN DEPARTMENT OF TEXTILE TECHNOLOGY INDIAN INSTITUTE OF TECHNOLOGY HAUZ-KHAS, NEW DELHI R.B.CHAVAN

INTRODUCTION DYEING DIFFERENCE BETWEEN DYEING AND PRINTING UNIFORM COLOURATION ALONG LENGTH AND WIDTH OF FABRIC USUALLY SINGLE COLOUR IS POSSIBLE. NO DIFFERENCE IN COLOUR BETWEEN FRONT AND BACK SIDE OF FABRIC AQUEOUS DYEING MEDIUM OF LOW VISCOSITY DYEING IN BATCHWISE, CONTINUOUS OR SEMI-CONTINUOUS METHOD. FABRIC DYEING IN OPEN WIDTH OR ROPE FORM. DYEING IN FIBRE, YARN, FABRIC, GARMENT FORM R.B.CHAVAN

PRINTING LOCALLIZED DYEING COLOUR IS APPLIED LOCALLY IN THE FORM OF DESIGN/PATTERN LOW VISCOSITY MEDIUM WOULD SPREAD THE COLOUR BY CAPILLARY ACTION, DOES NOT MAINTAIN THE SHARPNESS OF THE DESIGN. AQUEOUS MEDIUM OF HIGH VISCOSITY, PREVENT THE COLOUR SPREADING. FABRIC PRINTING IN OPEN WIDTH FORM ONLY FABRIC PRINTING IS MOST COMMON COMPARED TO YARN AND GARMENT PRINTING, EXCEPTION T-SHIRT PRINTING R.B.CHAVAN

PRINT LIKE EFFECTS PRINTING WEAVING USING COLOURED YARN KNITTING USING COLOURED YARN APPLIQUE OR PATCH WORK EMBROIDERY R.B.CHAVAN

PRINTING STUDY STYLES OF PRINTING DIRECT STYLE RESIST STYLE PRINTING OF SINGLE OR MULTICOLOURS ON WHITE OR PALE SHADE DYED FABRIC RESIST STYLE PREVENTION OF COLOUR FIXATION AT THE PRINTED PORTION WHITE RESIST: WHITE PRINT AGAINST COLOURED BACKGROUND COLOUR RESIST: COLOUR PRINT AGAINST COLOURE BACKGROUND DISCHARGE STYLE DESTRUCTION OF COLOUR AT THE PRINTED PORTION WHITE DISCHARGE COLOUR DISCHARGE R.B.CHAVAN

METHODS OF PRINTING SCREEN PRINTING BLOCK PRINTING STENCIL PRINTING ROLLER PRINTING SCREEN PRINTING MANUAL SCREEN PRINTING AUTOMATIC FLAT BED SCREEN PRINTING ROTORY SCREEN PRINTING TRANSFER PRINTING XEROX PRINTING INKJET/DIGITAL PRINTING PRINT LIKE EFFECT TIE-DYE AND BATIK R.B.CHAVAN

BLOCK PRINTING REQUIREMENTS OLDEST METHOD INDIAN ORIGIN STILL PRACTICED IN INDIA REQUIREMENTS WOODEN PRINTING BLOCKS COLOUR FURNISHING TRAY PRINTING TABLE R.B.CHAVAN

PRINTING BLOCK MADE OF GOOD QUALITY WOOD THICKNESS 3-4 INCHES (7-10 CM) MAXIMUM SIZE 12x12 INCHES (30x30 CM) DESIGN ON BLOCK IN RELIEF BLOCK MAKING : MANUAL, SKILLED BLOCK MAKERS R.B.CHAVAN

BLOCK MAKING DESIGN TRACING ON PLAIN BLOCK SURFACE MANUAL CARVING OF NON DESIGN PORTIONS DEPTH DEPENDS ON NATURE OF DESIGN METAL WIRE INLAY FOR VERY FINE OUTLINES SEPARATE BLOCK FOR EACH COLOUR IN THE DESIGN OLD TRADITIONAL METHOD STILL FOLLOWED NO NEW TECHNOLOGICAL INPUTS R.B.CHAVAN

PRINTING TABLE CUSHIONING WOODEN TABLE HEIGHT: 75-100 CM WIDTH: LARGER THAN THE WIDTH OF THE FABRIC TO BE PRINTED LENGTH: DEPENDS ON THE SPACE AVAILABLE. 10 METRES QUITE COMMON CUSHIONING RIGID WOODEN SURFACE NOT SUITABLE RESILIENT SURFACE OBTAINED BY LAYERS OF FABRIC TO BE PRINTED COTTON GREY FABRIC 4-6 LAYERS OF JUTE FABRIC WOODEN TABLE TOP ALL FABRIC LAYERS ARE FIXED IN STRETCHED CONDITION R.B.CHAVAN

COLOUR FURNISHING TRAY WOODEN TRAY 2-3 LAYERS OF JUTE FABRIC OR SINGLE LAYER OF THICK ABSORBENT POLY URETHANE FOAM FINE COTTON FABRIC R.B.CHAVAN

BLOCK PRINTING METHOD FIXATION OF FABRIC TO BE PRINTED ON CUSHIONED TABLE SATURATION OF DESIGN BLOCK WITH PRINTING PASTE TRANSFER OF DESIGN ON TO FABRIC BY SKILLED BLOCK PRINTER R.B.CHAVAN

ADVANTAGES AND LIMITATIONS SIMPLE METHOD LOW INVESTMENT LIMITATIONS LOW PRODUCTION INTRICATE DESIGNS NOT POSSIBLE BLOCK MAKING AND BLOCK PRINTING SKILLED JOB R.B.CHAVAN

PRINCIPLE OF COTTON PRINTING REFERENCE PRINCIPLE OF COTTON PRINTING D.G.KALE R.B.CHAVAN

SPRAY PRINTING OLD TECHNIQUE ORIGINATED IN JAPAN USED FOR PRINTING OF SILK SCARFS PRINCIPLE SPRAY OF COLOUR ONTO FABRIC THROUGH STENCIL STENCIL: THIN METAL PLATE, PLASTIC SHEET, PAPER DESIGN CUT IN THE FORM OF STENCIL METHOD AS IN FIG. R.B.CHAVAN

R.B.CHAVAN

MERITS & DEMERITS MERITS DEMERITS MULTICOLOUR EFFECT POSSIBLE THROUGH SINGLE STENCIL TONAL EFFECTS ACCORDING TO SPRAY DENSITY SPECKLED (DOT) EFFECT UNIQUE DESIGNS DEMERITS INTRICATE DESIGNS NOT POSSIBLE DESIGN LIMITATIONS DUE TO PROBLEMS OF STENCIL CUTTING R.B.CHAVAN