Dyeing and Printing

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Batch Dyeing;

Remember the 4 rollers each separated and the pool.

The process is;
Fabrics are initially produced and stored,
Required amount of fabric dyed,
Fabric mounted onto 2 rollers,
Passed back and forth (til dye used up),
Fabric is fixed in separate machine.

Process is useful for fashion trends, so manufacturers respond quickly.

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Continuous Dyeing;

Remember the rollers side by side and the pool.

The process is;
Long length fabric,
Passed through dye,
Through 2 rollers,
Dye spread evenly,
Fabric is dryed,
and then fixed. 

Process is useful for fabrics that do not need to change colour for trends. 

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Roller Printing;

Remember the big cylinder, looks like a huge space craft!

The process is;
Design engraved on copper rollers,
Rollers coated with dye,
Fabric runs between them,
Engraved design printed,
and Dye fixed with mordant,
to stop the dye running.

Advantages of this;
Very quick and cost effective,
and Continuous patterns printed seamlessly. 

Disadvantages of this;
Rollers are expensive and time consuming,
and Pattern only as big as circumference of roller. 

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Screen Printing;

Remember the swimming pool and surfboard!

The process is;
Stencil cut from acetate using (CAM),
Put beneath screen,
Printing ink poured onto screen,
Squeegee drawn across,
(this forces ink through mesh),
Screen is lifted,
and you have your design. 

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