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TT 105 > Quiz 3 Power Points > Flashcards

Quiz 3 Power Points Flashcards

1
Q

how many colors can the human eye see

A

22 million

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2
Q

how many color receptors does the eye have

A

3 (red, blue, greeen)

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3
Q

is the perceiving color unique or the same per human

A

unique

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4
Q

what are different categories of color perception can you have

A

color normal and color blind

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5
Q

How can textile fabrics alter their perceived color

A

through the structure

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6
Q

What do color depend on

A

nature of incident light and the interaction with object

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7
Q

Light striking can be…

A

reflected, absorbed, and transmitted

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8
Q

What color causes all light to be absorbed

A

black

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9
Q

What are colors mixtures of

A

monochromatic light of varying wavelengths

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10
Q

When visible light strikes fabric, what is absorbed

A

every other color but the color of the fabric

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11
Q

What are factors influencing color

A
  • Light source
  • Age
  • Gender
  • Fatigue
  • Texture
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12
Q

What does RGB Stand for

A

Red, green, blue

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13
Q

What color mixing property is used by a computer monitor

A

RGB

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14
Q

If you increase the intensity of RGB, what color does it make

A

White

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15
Q

What does CMY Stand for

A

Cyan, Magenta, Yellow

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16
Q

If you increase the intensity of CMY, what color does it make

A
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17
Q

What does Hue mean

A

color sensation

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18
Q

What does Value mean

A

lightness or darkness

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19
Q

What does Chroma (saturation) mean

A

purity of color

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20
Q

What color remains constant no matter what light source hits it

A

white

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21
Q

Color Difference

A

The smallest difference in color that a normal observer can see

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22
Q

What colors are harder to see small differences

A

deep red or deep violet

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23
Q

What colors are easier to see small differences

A

green or yellow

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24
Q

what light intensity is hard to see small differences

A

very bright and very dark

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25
Q

Hoe to minimize color differences

A

standardized, light sources, viewing angles, and viewing boxes

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26
Q

Dyeing

A

Process of adding color to textile materials - Absorbs

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27
Q

Printing

A

Localized application of colorants to produce patterned areas - May stay on surface OR Diffuse

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28
Q

How can dyes be applied

A

fiber, yarn, or garment form

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29
Q

What are the compounds for adding color to textile materials

A

dyes or pigments

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30
Q

components of dyeing

A
  • HIGH water solubility
  • ORGANIC compounds
  • CANNOT be dyed the same
  • DIFFUSED into fibers
  • Costly
  • NO binding agent
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31
Q

components of pigment printing

A
  • water INSOLUABLE
  • INORGANIC
  • CAN be printed the same
  • DONT diffuse
  • Cheap
  • YES binding agent
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32
Q

What do you have to do before dyeing and printing

A

prepare

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33
Q

Bleaching

A

Removing color impurities

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33
Q

Scouring

A

Removing dirt

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33
Q

What does bleaching do to luster

A

makes it brighter

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34
Q

What does bleaching do to the color of fabric

A

makes it whiter

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35
Q

half bleach

A

partial whitening

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35
Q

What types of bleaching can you use

A

half and full bleaching

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36
Q

full bleach

A

as much whitening as possible

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37
Q

Factors that influence dyeing

A
  • Liquor Ratio
  • Fiber character
  • Macheine
  • temp
  • dye concentration
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38
Q

liquor ratio formula

A

LR = amount of water (L) / weight of fabric (kg)

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39
Q

What does liquor ratio affect

A

dye uniformity, environmental and energy usage

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40
Q

what liquor ratio is best for dye uniformity

A

Higher LR

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41
Q

What liquor ratio is best for environmental and energy usage

A

lower LR

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42
Q

What is the difference between dyeing VS Staining

A

Dyeing - Intentional and Permanent
Staining - Accidental or Intentional, temportary

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43
Q

The different stages of dyeing

A
  • Solution
  • Fiber
  • Yarn
  • Fabric
  • Product
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44
Q

Solution Dyeing

A

dyeing manufactured fibers and are used for fibers that are difficult to dye

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45
Q

Tow Dyeing

A

dyeing fibers before they are cut

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46
Q

Yarn Dyeing

A

Adds color at yarn stage

47
Q

Skein Dyeing

A

yarns loosley wound to hanks or skeins and then dyed

48
Q

Package Dyeing

A

yarns wound on perforated spools and dyed in pressurized tank

49
Q

space dyeing

A

skeins of yarns dyed in multiple colors

50
Q

Fabric/Peice Dyeing

A

Entire peice (bolt or roll) of fabric

51
Q

Union Dyeing

A

two different fibers to the same shade

52
Q

cross dyeing

A

two different fibers to not the same shade

53
Q

Batch dyeing techniques

A

jig, jet, beck

54
Q

what is continuous dying used for

A

used for large batches

55
Q

Jig dyeing

A

holds the fabric in open width within the dye bath

56
Q

Beck dyeing

A

fabric is propelled by rotating elliptical roller or reel

57
Q

jet dyeing

A

fabric is propelled

58
Q

Dyeing vs. Printing

A

Dyeing - application of color
Printing - A selective application of color

59
Q

Textile Printing

A

application of dye pastes, pigments, or other chemicals to produce designs on textile products

60
Q

how prints/printed fabrics can be classified

A
  • colorant
  • type of motif
  • type of print
  • printing technique
61
Q

fabric printing objectives

A
  • Registration
  • Calrity
  • Penetration
  • Fastness
62
Q

Wha are dyes used for

A

dyeing and printing

63
Q

wet prints

A

prints with dyes

64
Q

dry prints

A

prints with pigment

65
Q

Dyes vs. pigments:

A

Dyes:
- penetrates
- doesn’t affect fabric hand
- no cracks
- effective to bleach

pigments:
- doesnt penetrate
- stiff
- cracks
- not effected by bleach

66
Q

Blotch prints

A

colored background where the background and pattern are printed at the same time

67
Q

Over prints

A

pattern printed on previously dyed fabric

68
Q

Mechanized Printing methods

A

Stencil, direct, heat transfer

69
Q

automatic flat screen printing

A

used for large repeats, slow, t-shirts

70
Q

rotary screen

A

half of printed goods, cheap, fast

71
Q

heat transfer printing

A

transfer pattern from paper to fabric
- slow, high quality, pollution free, short runs

72
Q

Hand printing methods

A

Direct, resist, stencil

73
Q

hand printing

A

mechanized methods used to imitate hand-printed methods

74
Q

tie dye

A

you tie and then dye materials

75
Q

Ikat

A

tiedyed prior to weaving

76
Q

Batik

A

wax is applied o fabric to prevent dye penetration

77
Q

flat and flatbed screens

A

small flat screens that are used to print small areas like tshirts

78
Q

Digital printing

A

direct printing onto fabric via an ink jet printer

79
Q

what is a disadvantage for digital printing

A

slow for production

80
Q

finishing

A

treatment of fabric to prepare it for sale

81
Q

type of finish

A

chemical, mechanical, thermal,

82
Q

finishes are categorized on

A

type of finish, purpose for applying the finish, durability of the finish

83
Q

purpose for applying the finish

A

aesthetic and functional

84
Q

permanent finish

A

lasts for the life of the fabric

85
Q

durable finish

A

the effectiveness of the finish is GRADUALY reduced

86
Q

semi-durable finish

A

loses its effectiveness after repeated use

87
Q

temporary finish

A

partially or completely removed after ONE laundering or cleaning

88
Q

Aesthetic finishings affect

A

luster, texture, hand, color

89
Q

Aesthetic finishes can be broken into what categories

A

chemical, mechanical, thermal

90
Q

Aesthetic finishes - Burn Out

A

sheer area with fringe around the edge of the sections where the chemical was applied

91
Q

What does burnout require

A

a combination of yarn or fabrics
- one is resistant to chemical
one is dissolved by acid

92
Q

Aesthetic finishes - Plisse

A

Produced by applying a chemical in vertical STRIPES that shrink those ears of the material

93
Q

Aesthetic finishes - SCHREINERING

A

Heated engraved roll presses fine lines into cotton or linen fabric to increase luster

94
Q

Aesthetic finishes - Embossing

A

Creates a raised effect that is produced by passing the fabric with an etched roller and a solf roller

95
Q

Aesthetic finishes - MOIRE

A

produced by passing two layers of a rib weave fabric between rollers to FLATTEN the ribs in certain areas

96
Q

Aestheic finishes - Glazed Finish

A

rollers ADD LUSTER by flattening the surface of the fabric

97
Q

Heat Setting

A

establishes fabric memory, minimizing shrinkage, piling, and wrinkling

98
Q

Decatizing

A

circulating hot water or blowing steam through fabrics to improve hand and remove wrinkles

99
Q

Thermal

A

Heat setting fabrics made of thermoplastic fibers

100
Q

Resin

A

permanent creases in fabrics

101
Q

Singeing

A

exposing fabric surface to a flame

102
Q

napping

A

a mechanical finishing process that raises fibers with the use of wires

103
Q

shearing

A

cutting loops of yarn to create a flat velvet fabric appearance and look

104
Q

Aesthetic finishes that alter hand

A

Sueding, Sanding, Stiffening

105
Q

Aesthetic finishes that alter color

A

stone washing sand washing, mercerizing, chemical washing

106
Q

Functional finishes

A

finishes that enhance fabric performance

107
Q

functional finishes enhance

A

comfort, maintenance, safety, durability

108
Q

Durable Press

A

a garment that has been treated to maintain a smooth shape and appearnce

109
Q

Water proof

A

prevents penetration of water

110
Q

water resistant

A

resists penetration of water

111
Q

water repellent

A

water tends to be shed but can pass through the fabric

112
Q

ovens

A

fabric edges held by pins or clips

113
Q

Heated cans

A

used to dry woven fabrics

114
Q

tenter frames

A

chains with pins or clips that pull width of fabric open as it passes through an oven

115
Q

Compacting

A

forces fabric to compress upon itself

116
Q

Resin

A

a polymer or prepolymer applied to fabric to prevent creasing, shrinkage, ironing

117
Q

hand building

A

used in lace and denim to add weight and increase luster

118
Q

softeners improve what

A

hand, tear, abrasion resistance, sewing behavior, appearance

119
Q

softeners cause what (disadvantages)

A

color change, less durable, odors

TT 105 (6 decks)

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