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How textile prints are made

Update:04-03-2022
Summary:

Hand block printing is a centuries old Indian art form […]

Hand block printing is a centuries old Indian art form that utilizes a hand carved teak wood block that is dipped in dye and stamped by hand onto cotton or silk.The design for the block is usually a traditional Indian motif. The motif is traced onto a block by a master craftsman who then chips away at the block to create a stamp.This process was patented by Bell in 1785, fifteen years after his use of an engraved plate to print textiles. Roller Printing also called engrave roller printing. It is a modern continuous printing technique. In this method, a heavy copper cylinder (roller) is engraved with the print design by carving the design into the copper.
 
Copper is soft, so once the design is engraved, the roller is electroplated with chrome for durability. This printing technique developed in the late 19th and early 20th centuries. Until the development of rotary screen printing; it was the only continuous technique. Designs with up to 16 colors present no problem in Roller Printing.Screen printing is by far the most common technology today. Two types exist: rotary screen printing and flat (bed) screen printing. A blade (squeegee) squeezes the printing paste through openings in the screen onto the fabric.Digital textile printing is often referred to as direct-to-garment printing, DTG printing, or digital garment printing.
 
It is a process of printing on textiles and garments using specialized or modified inkjet technology.In this form of printing micro-sized droplets of dye are placed onto the fabric through an inkjet printhead. The print system software interprets the data supplied by a cademic_Textiledigital image file. The digital image file has the data to control the droplet output so that the image quality and color control may be achieved. This is the latest development in textile printing and is expanding very fast.It is the most common approach to apply a colour pattern on fabric. It can be done on white or a coloured fabric. If done on coloured fabric, it is known as overprinting. The desired pattern is produced by imprinting dye on the fabric in a paste form.
 
To prepare the polyester knitted fabric print paste, a thickening agent is added to a limited amount of water and dye is dissolved in it. Earlier corn starch was preferred as a thickening agent for cotton printing.Nowadays gums or alginates derived from seaweed are preferred because they are easier to wash out, do not themselves absorb any colour and allow better penetration of colour. Most pigment printing is done without thickeners as the mixing up of resins, solvents and water itself produces thickening.In this approach, the fabric is dyed in piece and then it is printed with a chemical that destroys the colour in the designed areas. Sometimes, the base colour is removed and another colour is printed in its place. The printed fabric is steamed and then thoroughly washed. This approach is on decline these days.

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