TEXTILE PRINTING AND DESIGN
1. TEXTILE PRINTING
1.1. INTRODUCTION
Textile printing is the process of applying color to fabric in definite patterns or designs. In properly printed fabrics the color is bonded with the fiber, so as to resist washing and friction. Textile printing is related to dyeing but, whereas in dyeing the whole fabric is uniformly covered with one color, in printing one or more colors are applied to it in certain parts only, and in sharply defined patterns.
In printing, wooden blocks, stencils, engraved plates, rollers, or silk screens are used to apply colors on the fabric. Colorants used in printing contain dyes or pigments thickened to prevent the color from spreading by capillary attraction beyond the limits of the pattern or design.
Traditional textile printing techniques may be broadly categorized into three styles:
Direct printing, in which colorants containing dyes, thickeners, and the mordant or substances necessary for fixing the color on the cloth are printed in the desired pattern.
Resist dyeing, in which a wax or other substance is printed onto fabric which is subsequently dyed. The waxed areas do not accept the dye, leaving uncolored patterns against a colored ground.
Discharge printing, in which a bleaching agent is printed onto previously dyed fabrics to remove some or all of the color.
1.2. COMPARISON BETWEEN DYEING AND PRINTING
Though the dyeing and printing are the coloration processes using the same classes of dyes and other chemicals, they differ in the following aspects.
Table 1.1 Differences between Dyeing and Printing
Dyeing
Printing
1. Uniform application on both sides of the fabric surface with single color only.
1. Single or multicolor application on one side of the fabric at selected portions only.
2. Dyes are applied in dilute form.
2. Dyes are applied in paste form.
3. In fabric preparation, Half bleaching is enough.
3. full-bleaching with optical whitener is necessary.
4. Color penetrates
1.1. INTRODUCTION
Textile printing is the process of applying color to fabric in definite patterns or designs. In properly printed fabrics the color is bonded with the fiber, so as to resist washing and friction. Textile printing is related to dyeing but, whereas in dyeing the whole fabric is uniformly covered with one color, in printing one or more colors are applied to it in certain parts only, and in sharply defined patterns.
In printing, wooden blocks, stencils, engraved plates, rollers, or silk screens are used to apply colors on the fabric. Colorants used in printing contain dyes or pigments thickened to prevent the color from spreading by capillary attraction beyond the limits of the pattern or design.
Traditional textile printing techniques may be broadly categorized into three styles:
Direct printing, in which colorants containing dyes, thickeners, and the mordant or substances necessary for fixing the color on the cloth are printed in the desired pattern.
Resist dyeing, in which a wax or other substance is printed onto fabric which is subsequently dyed. The waxed areas do not accept the dye, leaving uncolored patterns against a colored ground.
Discharge printing, in which a bleaching agent is printed onto previously dyed fabrics to remove some or all of the color.
1.2. COMPARISON BETWEEN DYEING AND PRINTING
Though the dyeing and printing are the coloration processes using the same classes of dyes and other chemicals, they differ in the following aspects.
Table 1.1 Differences between Dyeing and Printing
Dyeing
Printing
1. Uniform application on both sides of the fabric surface with single color only.
1. Single or multicolor application on one side of the fabric at selected portions only.
2. Dyes are applied in dilute form.
2. Dyes are applied in paste form.
3. In fabric preparation, Half bleaching is enough.
3. full-bleaching with optical whitener is necessary.
4. Color penetrates