Quality Control For Woven Fabric

Question 1

Fabric count + sett:
Describe a square cloth
Describe an un-square cloth

Answer 1

Square: same size yarn, same no. Of threads used in both warp and weft

Un-square: either unequal no. Of yarns per inch or different yarn sizes used in both warp and weft

Question 2

Fabric count + sett:
How many ends and picks are in a high count cloth?
How many in a low count cloth?

Answer 2

High count: 90 ends/cm 80 picks/cm

Low count: 20 ends/cm 15 picks/cm

Question 3

Name six factors to consider before cutting woven fabric:

Answer 3

1. Dimensional stability
2. The grain of a cloth
3. Matching of patterned or pile fabrics
4. Seam slippage
5. Fabric stretch
6. Compatibility of layers

Question 4

What’s the best way to cut fabric?

Answer 4

When the fabric is flat, relaxed, straight

Question 5

Describe a lengthwise grain:

Answer 5

Runs the length of fabric parallel to selvedge

Question 6

Describe a crosswise grain:

Answer 6

Runs perpendicular to selvage of fabric

Question 7

Describe bias grain:

Answer 7

Line is a 45 degree angle to the lengthwise and crosswise grain.

Question 8

What effects can happen to woven fabrics if the weft is not square?

Answer 8

• bowed effect

- skewed effect

Question 9

Seam splippage is more prevalent when: (4)

Answer 9

• Man made fibres/ yarn used
• smooth surface
• lower sett
• long floats

Question 10

Why should woven fabrics be tested? (3)

Answer 10

• to ensure fabrics preform to their intended use
• to protect the consumer
• to protect manufacturer

Question 11

What areas of woven fabrics are tested?

Answer 11

• protection (eg flammability)
• appearance (pilling)
• physical mechanical (stretch)
• comfort (compressibility)

Question 12

Name 4 fabric flaws

Answer 12

Broken ends
Broken picks
Skewed fabric
Un-square weft