Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Spring 24 > final exam cte4443 > Flashcards

final exam cte4443 Flashcards

1
Q

customer concerns

A

how material responds to care
- colorfastness
- dimensional change
- appearance retention

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

rating

A

process of determining or assigning grade to material by comparing it to standard reference scale

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

rating procedures

A
  • one or more trained raters
  • controlled light source
  • standard gray controlled background
  • evaluation
  • 5= no change, 1= greatest change
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

types of care assessments

A

home laundering, commercial laundering, and dry cleaning
assess: shrinkage, soil removal, wrinkle resistance, color change/loss, staining, change in hand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

migration

A

non uniform movement and distribution of colorants; chemicals transfer from one part of the material to another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

factors of effective washing

A
  • machine cycle
  • appropriate sorting of textiles
  • correct detergent chemistry
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

2 approaches to test methods for assessing care

A
  1. worst case scenario: subject material to relatively severe condition
  2. normal use conditions
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

AATCC 61 colorfastness to laundering

A
  • launder-ometer: 5 typical home/commercial launderings
  • variables: mechanical action from steel balls, additives (bleach, detergent), water temperature, volume
  • specimens evaluated for color change and staining
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

AATCC 124 appearance of fabrics after repeated home laundering

A
  • evaluates fabric smoothness
  • smoothness appearance rating standard
  • wrinkle degree and frequency
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

AATCC 8 colorfastness to crocking: AATCC crockmeter method

A
  • rub dry and wet material against standard white fabric
  • evaluate for color change
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

AATCC 15 colorfastness to perspiration

A
  • simulated perspiration solution
  • multifiber test fabric
  • perspiration tester/perspirometer
  • evaluate for color change
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

care instructions

A

series of directions that describe procedures for refurbishing a product without adverse effects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

care label

A

gives directions for
cleaning a textile product

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

bleeding

A

loss of color from…?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

MFTS

A

multifiber test strips

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

gray scales

A

color change (dark to light) and staining (white to dark)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

fast or fugitive dyes

A

fast dyes: bond well within fiber so bleeding does not occur during normal care
fugitive dyes: form weak bonds with fiber so bleeding can occur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

relaxation and residual shrinkage

A

relaxation shrinkage: tensions from yarn spinning, fabrication, and finishing relax when materials dry without tension
residual shrinkage: relaxation shrinkage not removed in the first cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

progressive shrinkage

A

material shrinks with each cleaning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

lightfastness

A

property of material describing ranked color change resulting from exposure to designated light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

photochromism

A

reversible change of color from light exposure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

frosting

A

white cast on material from being abraded

23
Q

crocking

A

color on material surface transferred to another material by surface contact and rubbing

24
Q

3 factors color depends on

A

-light source
- eye
- object

25
Q

2 types of color measurement

A
  • subjective with eye
  • objective with instrument
26
Q

XYZ represent which colors

A

X: red
Y: green
Z: blue

27
Q

L* a* b*

A

L: darkness (0) to lightness (100)
a: greenness (negative) to redness (positive)
b: blueness (negative) to yellowness (positive)

28
Q

most common device for measuring color

A

eye

29
Q

555 system

A

3 digit shade numbering system
- 1st 5: lightness-darkness
- 2nd 5: redness-greenness
- 3rd 5: yellowness-blueness
- color within 555 space matches standard

30
Q

Delta E (DE)

A

difference between standard and specimen
- consumer limit: DE 1.5
- company expectation: DE < 0.5

31
Q

color

A

sensation resulting from stimulation of eye’s retina by wavelengths of light

32
Q

color measurement

A

assigning numerical values to a color and placing it in a specific location in a three-dimensional color space

33
Q

metamerism

A

two materials look the same color under one light light source but not another

34
Q

CIE system

A

amount of standard red (X), green (Y), and blue (Z) and needed to match a color
- CIE: international commission on illumination

35
Q

tristimulus system XYZ

A

represents primary additive colors and all colors mixed from primary colors
- based on maxwell triangle

36
Q

chromaticity diagrams

A

based on understanding of how human eye sees color and color systems (Munsell)

37
Q

color mixing

A

straight line between two points

38
Q

spectrophotometer

A

measures % of light transmitted or reflected at each wavelength in visible spectrum by colored surface

39
Q

spectroscopy

A

study of emission and
absorption of electromagnetic spectrum

40
Q

colorimeter

A

color determined by absorption or subtraction of light
from incident white light

41
Q

strike-off

A

sample of dyed or
printed material used for color
acceptance

42
Q

shade sorting

A

physical grouping of materials by color

43
Q

bezold effect

A

merging of two or more
tiny color areas into one new color

44
Q

lab dips

A

samples dyed using formula
for color match

45
Q

chroma

A

saturation

46
Q

hue

A

what gives color its name
ex- red, orange, yellow, etc

47
Q

value

A

brightness

48
Q

additive and subtractive mixing

A

additive: adds wavelengths of light to create other colors
subtractive: remove one or more colors from light to create other colors

49
Q

visible light

A

electromagnetic
spectrum portion that stimulates
sight; 400 - 700 nm

50
Q

infrared region (IR) wavelengths

A

longer than visible light; heat

51
Q

ultraviolet region (UV) wavelengths

A

shorter than visible light; causes
molecular and cell damage

52
Q

electromagnetic spectrum

A

continuous range of frequencies
and wavelengths of energy

53
Q

white light

A

all wavelengths of visible spectrum present in equal amounts

Spring 24 (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions