Lesson 1

Question 1

Mention the steps of the process from fiber to final garment

Answer 1

Fiber - yarn - fabric - garment

Question 2

Explain whats a discontinuous fiber and whats a continuos filament?

Answer 2

Discontinuous fiber: not much lenght

Continuous filament: they already are continuous

Question 3

Classification: fibers

Answer 3

natural fiber

man-made fiber

Question 4

Classification: natural fibers

Answer 4

Vegetable
Animal
Mineral

Question 5

Classification: natural vegetable fibers

Answer 5

seed
baste
leaf

Question 6

Classification: natural animal fiber

Answer 6

wool
silk
hair

Question 7

Classification: natural mineral fiber

Answer 7

asbestos

Question 8

Classification: man-made fiber

Answer 8

regenerated
synthetic
other

Question 9

Classification: regenerated man-made fiber

Answer 9

cellulose, viscose
protein, acetate
alginate, lyoceli

Question 10

Classification: synthetic man-made fiber

Answer 10

polyester
polyvinyl, acrylic
polyolefin
others

Question 11

Classification: other man made-fiber

Answer 11

metallic
glass
carbon

Question 12

Kind of properties that fibers have

Answer 12

1. Morphological (geometry, sheen, hand)
2. Chemical (react. to chemicals and resistence)
3. Physical-mechanical properties (hygroscopic, heat, insulation, electrical behavior)
4. Physiological (allergy, sense hot/cool, resistance to bacteria)

Question 13

Natural fibers?

Answer 13

obtained form materials in nature without changing the structure of the fiber

Question 14

Man-made fibers?

Answer 14

Fiber derived from synthetic substances that are polymerized (produced continuos but usually cutted)

Question 15

Regenerated man-made fibers?

Answer 15

materials of natural origin modified by man chemical processes changing the structure of the fiber

Question 16

Spinning?

Answer 16

Process that changes fibers in to a long yarn

Question 17

*****Twisting?

12

Answer 17

Fibers are arranged in loops: Z or S

Question 18

Woven fabrics?

Answer 18

Textile built by weaving (warp and weft)

Question 19

**Warp and weft?

Question 20

**Knitted fabrics? (14)

Answer 20

The yarns follows a course forming loops called bights

Question 21

Characteristic of woven fabrics

Answer 21

resistance

structure

Question 22

Characteristic of knitted fabrics

Answer 22

soft
flexible
comfort

Question 23

Non woven fabrics?

Answer 23

Fibers arranged in layers or crossed bonded by some treatment

Question 24

Characteristic of non woven fabrics

Answer 24

soft

elasticity

Question 25

Which are the properties of fabrics?

Answer 25

1. yarn composition
2. weave
3. colors
4. weight
5. finishing

Question 26

*****Which are the basic weaves? (18)

Answer 26

• plain weave
• twill weave
• satin weave