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- Review Guideline for AMT210 Test 1
- Instruction:
- Use the guideline, the lecture handouts (available on Angel as well), the notes you made in the classes, and the textbook to prepare your test.
- Test 1 covers Chapters 1-5.
- The question formats are multiple choices, true/false, definitions, and short questions.
- Point distribution Total 50 points
- Multiple choices 15 points
- True/false 10 points
- Definition 15 points
- Short questions 10 points
- Time: 12:10 β 1:00 pm, Sep 12th 2011
- Place: CUE 419
- Chapters 1-2
- 1. Definitions of Fiber, Fabric, Finish, Gray goods, Textile, Yarn, Product Development, Serviceability, Performance. -------
- 2. Explain the seven main components in serviceability.
- Aesthetics, durability, comfort, appearance retention, care, environmental concerns, sustainability
- 3. Explain the relationship between product performance and product development.
- Chapter 3
- 1. Definition of Standard test methods.
- Visual inspection:
- Burn test: identify fibers chemical composition. Distinction between cellelosic, protein, mineral and synthetic
- microscopy: look under microscope at physical structure
- solubility test: fiber in solvent note effect
- 2. What does the physical structure of a fiber refer to?
- Length, diameter, cross-sectional shape, surface contour, crimp, fiber parts
- 3. What do aesthetic properties refer to? (for instance, Luster, Drape, Texture, Hand)
- Cover: ability to protect or conceal
- Luster: way light is reflected by a surface
- Drape: way fabric falls over a 3d form
- texture: nature of textiles surface
- hand: way textile feels to the skin
- 4. What do durability properties refer to?
- Abrasion resistance:
- Flexibility: ability to bend repeatedly without breaking
- Pilling: formation of balls under fabrics surface
- strength: ability to resist stress
- tenacity: tensile strength. Ability to withstand pulling force
- cohesiveness: ability of fibers to cling together during spinning
- elongation: ability of fiber to be stretched without breaking
- 5. What do comfort properties refer to?
- Absorbency: ability of fiber to take moisture from body
- hygroscopic: fibers absorb moisture without feeling wet
- electrical conductivity: absorbent fibers do not build up static charge
- wickingL ability of a fiber to transfer moisture along its surface. Wick well not absorbant
- heat / thermal rentiton: ability of textile to hold heat
- heat condfucity: ability to transfer heat through a fabric
- heat sensitivity: fibers reaction to heat
- flammability: fabrics reaction to ignition and how it burns
- density / specific gravity: measure of fiber weith per unit of volume
- alergic potential
- 6. What do appearance-retention properties refer to?
- 7. List four common fiber identification methods.
- Burn test, soluability test, visual instection, microscopy
- Chapter 4
- 1. List the properties that are common to all natural cellulosic fibers.
- Good absorbency, conductor of heat, withstand high temp, low resiliency, low loft
- , good conductor of electricity, heavy fibers, moderate resistance to sublight
- 2. Explain the serviceability of cotton.
- Aesthetics: range
- durability: medium strength, stronger in water, low enlogation/ elasticity, abrisian resistance good
- comfort: moisture passes freely good heat and electrical conductivity, soft hand
- appearance retention: low resiliency β wrinkles, shrinks
- care: bleach weakens, stronger in water
- 3. Understand the types of cotton according to farming methods.
- 4. Explain the serviceability of flax.
- 5. Citing serviceability concept, explain the pros and cons of use of cotton in sportswear.
- Chapter 5
- 1. Explain the characteristics common to all natural protein fibers.
- 2. Understand the serviceability of wool.
- 3. Understand the serviceability of silk.
- 4. What chemical can be used to effectively remove the overlapping scales on the surface of wool so as to improve the smoothness, softness and fineness of wool?
- 5. Explain why most wool products are labeled dry clean only.
- 6. Why is silk considered the standards for appearance for many synthetic and manufactured fibers?
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