3.2.8 specialist techniques and processes

Question 1

commercial dying

Answer 1

continuous- machine feed tough tanks of dye so all the same colour

batch- respond to demand

stock- before fabrics are spun/ woven
so more control over colour

Question 2

batique

Answer 2

wax as a pattern resists dying
material is washed at high temp and leaves a pattern

Question 3

tie dye

Answer 3

twisting, folding, crumpling in place with elastic bands. Folds resist dye and leave a pattern when they’re left to dye

Question 4

screen printing

Answer 4

wood frame with fibre mesh, ink is spread with a squeege.
+effective, low cost
- screens and stencils take time

Question 5

block printing

Answer 5

ink dipped in blocks with raised designs
+complete control over hand printing
+easily repeated and colours changed

Question 6

digital printing

Answer 6

uses CAD/CAM as it rolls of fabric are fed though a printer
+more complex images
+can save designs electronically
+adapt to JIT method by reacting to trends
+low labour costs
-set up costs high

Question 7

how is weaving suitable for commercial

Answer 7

-weaving looms linked to CAD to allow for changes in pattern
-undergo a ‘test weave’
-weaving looms produce large quantities at low cost
-can be constructed in different ways to give a variety of characteristics

Question 8

Laser cutting

Answer 8

A data file must be created
Different colours in CAD assigned to different tasks eg. Red for cutting
Speed of laser and PPI determine tolerances
Extractor on and lid shut when in use