Exam 3 Flashcards
Identify & describe the purpose of Warp beam the loom
warp ends are wound preparation for weaving
Identify & describe the purpose of harness the loom
warp is drawn form shed and determines woven pattern
Identify & describe the purpose of Heddle the loom
vertical cords form principle part of harness guides warp threads
Identify & describe the purpose of reed the loom
“comb” push weft yarn into place separates warp threads guides the shuttle
Identify & describe the purpose of shuttle the loom
back and forth between yarn threads of the warp weave the weft
Identify & describe the purpose of cloth beam the loom
woven material is wound
define the shed loom motion?
opens form bit riser/sinker warp yarns
define the pick loom motion?
fill yarn interred through shed
define the beat loom motion?
reed combs pick into form fabric(bring yarn together make fabric)
define the take-up loom motion?
finished fabric wound onto cloth beams
compare warp and weft yarn properties? Warp
(over strengths) more yarn inch, twist, strength, straightness
compare warp and weft yarn properties? Weft
(shrinks) elongation, more drape, dimensional stability, novelty
describe grain angle lengthwise
straight line goes up
describe grain angle crosswise
straight line goes horizontal
describe grain angle bias
45 acute angel
describe grain angle grain
90 angle
describe the 2 off-grain angle
Bow and Skew both uneven
calculate fabric count and balance of 1:1
80x76 balanced
calculate fabric count and balance of 2:1
160x80 unbalanced
calculate fabric count and balance of 3:1
210x78 unbalanced
Balanced Medium weight weave
Gingham, Chambray, Muslin, Percale
Balanced Light weight weave
Organdy, Georgette, Voile, Batiste
Balanced Heavy Wight weave
Tweed, Burlap
Unbalanced
Taffeta, Ottoman, Grosgrain
basket
Oxford cloth
twill weaves
herringbone, houndstooth, right-handed, left-handed
Satins:
warp faced, fill-faced
Explain the differences between satin and sateen
Stain: warp-face, Filament yarn, Longer floats
Sateen: warp or fill-face, spun yarn, shorter float
Dobby weaving method examples
dobby, huck-a-buck, Birdseye pique, spot weave (cut and uncut)
Jacquard weaving method examples
damask, brocade, tapestry
Leno weaving method examples
marquisette
Structure of Wales
vertical columns loops Vs (face)
Structure of course
horizontal rows (back)
define interlock
stitches/loops aligned, double knot
define double knit
stitches/loops NOT aligned,
describe warp knitting in interlooping direction
vertical loop, fastest yarn-to-cloth knit.
describe weft knitting in interlooping direction
horizontal fabric, yarn carried back/forth or around
what are single knit properties
Single knit has better absorbency, thermal retention, elongation, and resiliency.
what are double knit properties
more stable, spun yarn,snag/ravel resistant, and has better dimensional stability.