textiles and manufactured boards

Question 1

what is the weft set of yarn

Answer 1

the set of yarn that travels from left to right

Question 2

what is the warp set of yarn

Answer 2

the set of yarn that travels up and down

Question 3

name the simplest weave and its advantages + uses

Answer 3

the plain weave
- hard wearing, strong, holds its shape well
- cheapest weave to be produced
- can be created by a third party manufacturer
- there are industrial looms used to produce woven yarns on large scale
- used to make loads of different fabric including cotton based ones

Question 4

what are the two types of knitted yarns

Answer 4

weft knitted and warp knitted

Question 5

describe weft knit

Answer 5

the yarn goes across the fabric using interlocking loops with the yarn beneath
these can stretch easily + lose shape + unravel if a yarn breaks
can be produced by hand or machine
in jumpers socks t-shirts

Question 6

describe warp knit

Answer 6

the yarn runs up the fabric in vertically interlocking loops
stretchy but can still keep their shape
harder to unravel
only can be made by machine (expensive)
used to make tuchts swimwear

Question 7

name two non-woven fabrics

Answer 7

bonded fabrics
felted fabrics

Question 8

what are bonded fabrics

Answer 8

webs of synthetic fibres that are glued, needle punched, stitched or melted together
used for interfacing - the material inbetween masks for example

Question 9

describe the process of felted fabrics

Answer 9

made by combining pressure, moisture and heat to interlock a mat of wool fibres
can be used for carpet underlay, craft material, hats, jewellery etc

Question 10

why would someone combine fibres

Answer 10

a combination of different fibres can give better properties

Question 11

what is a blend of fibres

Answer 11

when two or more different fivres are combined to produce a sting of yarn
this yarn is then knitted/woven fo make a blended fabric
combining cotton and polyester fibres is the most common blended fabric

Question 12

cotton and polyester fibre blend advantages + disadvantages

Answer 12

is even stronger and remains hard wearing
is less absorbent and so dries more quickly
is soft and comfortable
resists creasing
doesnt shrink easily
HIGHLY flammable

Question 13

describe a mix of fabric

Answer 13

made up of two or more types of yarn that are knitted or woven together to make a mixed fabric
THE YARNS ARE NOT COMBINED TO MAKE A NEW YARN.