Textiles exam 3

Question 1

Fabric Name: Gabardine

Answer 1

Fabrication Category: woven

Question 2

Fabric Name: Interlock

Answer 2

Fabrication Category: weft knit

Question 3

Fabric Name: Raschel Lace

Answer 3

Fabrication Category: warp knit

Question 4

Fabric Name: Spunbonded

Answer 4

Fabrication Category: non-woven

Question 5

Fabric Name: Tufted Carpet

Answer 5

Fabrication Category: Compound

Question 6

warp

Answer 6

Vertical

Question 7

weft

Answer 7

Horizontal

Question 8

On Grain

Answer 8

Surface of fabric

Question 9

Bias

Answer 9

Diagonal

Question 10

Bow and skew

Answer 10

Other

Question 11

Loom Components: Reed

Answer 11

weaving operation: Beating or pushing the picks

Question 12

Loom Components: warp beam/cloth beam

Answer 12

weaving operation: Taking up and letting off

Question 13

Loom Components: harness

Answer 13

weaving operation: Shedding

Question 14

Loom Components: shuttle or rapier

Answer 14

weaving operation: Picking

Question 15

end uses: disposable such as wipes

Answer 15

Most appropriate fabrication categories: Compound such as laminated PVC

Question 16

end uses: active wear/ yoga pants

Answer 16

Most appropriate fabrication categories: Knit such as jersey

Question 17

end uses: upholstery

Answer 17

Most appropriate fabrication categories: Non-woven

Question 18

end uses: structured garments/suits

Answer 18

Most appropriate fabrication categories: woven such as serge

Question 19

In describing woven fabric, the term end or number of ends refers to

Answer 19

warp yarn

Question 20

A woven fabric is labeled having a fabric count of 100x50. This means that the fabric has __________ yarns per square inch

Answer 20

5,000

Question 21

The number of needles per inch on a knitting machine is termed as

Answer 21

Gauge

Question 22

Pilling is an indicator of fabric quality. The pilling test ranks the fabric by a 1 to 5 scale. Scale 1 rating means no visible pilling while 5 means extreme pilling

Answer 22

True

Question 23

Which of the following fabrics will have highest pilling tendency?

Answer 23

-100% flat polyester filament
-Elastic core compound yarn with textured
filament cover
-100% woolen yarn
-100% worsted

Question 24

Which of the following fabric has the highest propensity to run and lose shape, but it’s easy to stretch and thus more comfortable to wear.

Answer 24

Single weft Jersey knit

Question 25

Among the following fabrication methods which one can be the fastest one to produce thus the cheapest

Answer 25

Compound such as laminated

Question 26

Which of the following fiber has the largest nonwoven fabric share due to its low price yet with suitable properties such as zero moisture regain and lowest density, no chemical reactivity?

Answer 26

Olefin such as polypropylene

Question 27

In textile industry, tentering is a process of

Answer 27

Stretching and steaming fabric with designed width and correct grain direction and fabric count

Question 28

Desizing means

Answer 28

Taking out the starch solution added to warp yarns before weaving for the purpose of reducing yarn break

Question 29

Mercerization is a finishing applied to

Answer 29

Cotton fabric – to make it lustrous and stronger

Question 30

Overall calendaring finishing process makes the fabric more lustrous. This is due to the fact that

Answer 30

-small nano particles are pressed into the fabric by heated roller -the yarns in the fabric are flattened by heated roller to reflect light better -the fussy fiber ends are removed by flame-the fiber morphology is changed due to the pressure from heated roller

Question 31

Nano technology is the new frontier of science and technology application. It has been used in textile industry to improve fabric performance. Which of the following is around the nano scale

Question 32

Nanotechnology, when applied to textiles, can make the textiles

Answer 32

resistant to water, stain and soiling resistant to bacteria and inhibit odor resistant to wrinkling and UV light resistant to static build up

Question 33

Color is a physical property of a substrate, such as a fabric, its color is perceived the same no matter by whom and by what kind of light

Answer 33

False

Question 34

Which part of the human eyes is responsible for seeing color

Answer 34

Cones

Question 35

When we perceive dark color from a substrate, it means that all wavelengths of the electromagnetic waves in the visible range are reflected by the substrate

Answer 35

False

Question 36

When you choose lightings for visual merchandising, what is the Color Rendering Index for good lighting quality that you should consider?

Answer 36

above 80

Question 37

When color transfer from one fabric to another due to rubbing or abrasion, this is termed as

Answer 37

Crocking (dry or wet)

Question 38

Level indicates which color quality of a fabric

Answer 38

The uniformity of solid color through the fabric

Question 39

Among carpets of different fibers, which fiber is most stain resistance and chemically inert, thus can be cleaned by bleach. However, this fiber is most oleophilic and can be crushed easily due to its lower resilience

Answer 39

Polypropylene (olefin)

Question 40

Polyester fiber is also oleophilic because of its very low moisture regain at 0.5%.

Answer 40

True

Question 41

Which of the following fibers is used for making commercial carpet due to its high performance in resilience and abrasion resistance

Answer 41

Nylon 6 and Nylon 6.6

Question 42

Coloration method, such as if the fiber is solution dyed or not, does not affect its product stain resistance because it is for design or aesthetic concern

Answer 42

True

Question 43

Fiber size and morphology affect comfort such as sensorial (soft or rough) and they don’t affect a product’s maintenance performance such as soiling propensity

Answer 43

False

Question 44

What are the five possible textile components and what are the seven textile serviceabilities?

Answer 44

Textile Components: Fibers, yarns, fabrication, coloration, finishing Serviceabilities: durability, comfort & safety, cost, aesthetic, care & maintenance, environmental impact, appearance retention

Question 45

What is the relationship between the components and the serviceabilities?

Answer 45

the performance quality of a textile relies on that of the development and production of such textile.

Question 46

Active learning presentations by 9 groups: What have you learned and remembered from other groups’ topics and presentations?

Answer 46

Aramid- high performance man made fiber, used for firefighter gear and military grade uniforms Pinatex- non biodegradable leather alternative made from cellulose extracted from pineapple leaves