Textiles Unit 2 Exam

How does the number of harnesses in a loom relate to the floats in a fabric?

-more number of harnesses can make more SETS OF WARPS which = a more complex fabric

- determines the weave or interlacing pattern

every warp in a loom should correspond to a __

heddle

what refers to the space between each of the heddles on a loom?

dents

why are dents important?

determines the amount of ends per square inch

disadvantage of the projectile loom

it has to carry the thread all the way over

how many times faster is projectile and rapier loom than shuttle loom

2-4 x

how many times faster is airjet loom than shuttle loom?

1.5 x

how many times faster is water-jet loom than shuttle loom?

2-3 x

the ridges made in the diagonal of a twill weave

wales

anytime yarn goes over 2 or more threads; can seen anywhere BUT plain weaves

floats

very fast, fabrics are less streaky and more compact, less noisy, and takes up less space

advantages of waterjet loom

limitations on fabric width and very expensive

disadvantages of waterjet loom

angles of weaving patterns

regular 45

steep

reclined

the conventional loom makes the ___ of selvage on both sides

same kind

shuttle-less looms have __selvages because the filling yarn is cut and the selvage yarn looks like fringe

different

the lengthwise self edge of a fabric

selvage

Problems associated with a fabric that has been woven off grain

causes reruns or repeating finishing steps and lowers fabric quality

products do not drape properly or printed designs are not straight

process of forming fabric from starting material (many different methods)

fabrication

the most simple/basic weave

plain weave

the most widely used method to make fabric

weaving

a woven fabric is interlaced at ___angles

right

woven fabrics have __ elasticity

low

when a Yarn changes position from one side to another

interlacing

In what loom are changes being done to reduce the length of the fringe along the selvages and selvage waste by 50%?

rapier loom

disadvantages of the air-jet loom?

only suitable for any filling yarn that is not too bulky or heavy; good warp preparation is required; very high energy consumption

predominant loom for weaving sheeting and denim

air-jet loom

disadvantage of water-jet loom?

can use use only hydrophobic fibers (synthetic fibers)

types of woven fabrics

plain

twill

satin

complex

types of plain weaves

rib and basket

types of twill weaves

right and left hand

even sided and uneven sided

warp faced and weft faced

do warp or weft faced twill weave fabrics have a stronger facing front?

warp faced

example of twill weave warp faced fabrics

denim and drill

types of satin weaves

satin

sateen

Satin is made with ___ flows

warp

Sateen is made with ___ flows

weft

types of complex weaves

Jacquard, dobby, double cloth, double weave, pique, momie, leno, pile, slack tension, tapestry

fabrics in which the design is produced at the same time that fabric is woven

fancy/complex weaves

specialized looms required to produce this complex weave

jacquard

which weave is made with a doup attachment?

leno

only complex yarn woven as leno

chenille

this complex weave has 25 different warp yarn arrangements

dobby weave fabric

this complex weave contains GEOMETRIC forms

dobby weave

2 methods to create the dobby weave

punch cards or computer

waffle cloth and honey comb weave are examples of

dobby weaves

additional wrap or filling yarns of different colors or types are woven into the fabric to create a pattern

extra yarn weave

examples of extra yarn complex weaves

dotted swiss

eyelash

complex weave that uses stuffer yarns and has ridges, wales, or cords held up by floats on back

pique weave

bedford cord is an example of what type of complex weave

pique weave

wale refers to ___ NOT diagonals

ridges

complex weave that presents no wale or other distinct weave effect but gives the fabric the appearance of being sprinkled with small spots or seeds

momie weave

complex weave known as crepe or granite weave

momie weave

complex weave with irregular interlacing patterns and uses the dobby attachment

momie weave

sand crepe is an example of what complex weave

momie weave

what person from france made the jacquard weave

joseph jacquard

which comlex weave uses punch cards and computers?

jacquard

type of jacquard weave that has a contrast of more than 1 color?

damask

what complex weave changed the computer industry because computer programming was invented from the use of punch cards?

jacquard weave

complex weave with large figured DESIGNS/PATTERNS that require more than 25 different arrangements of the warp yarns to complete one design?

jacquard

damask, brocade, tapestry examples of what weave

jacquard

complex fabric woven with 3,4, or 5 different sets of yarns (extra warp or weft); 5 SETS OF YARNS

double cloth weaves

can double cloth or double weave be separated?

double CLOTH

weave from 2 fabrics woven together with 5th binder yarn

double cloth weave

complex weave with 4 sets of yarns; 2 cloths are interwoven (2 warp and 2 weft)

double weave

pocket cloth and matelasse are examples of what complex weave

double weave

2 warps twisted together in figure 8 shape to lock filling yarns in place

leno (open) weave

a weave in which the warp yarns do not lie parallel to each other

leno weave

which type of complex weave is made with a doup attachment?

leno weave

example of a leno weave

marquisette

mosquito nets and fruit packaging are example of what type of weave

leno weave

3D woven fabric with additional warp or filling that creates pile

pile weaves

type of fabric that receives the most surface abrasion

pile

high count pile fabrics produce

DURABLE carpets, upholstery, bedspreads

stuffed toys, wigs, paint rollers, bed pads use which type of complex fabric?

pile

examples of weft piles

corduroy and velveteen

examples of warp piles

velvet and terry cloth

weft pile

have an extra weft

warp pile

have an extra warp (3rd pile yarn is set in warp)

towels and robes are made from what type of pile?

warp pile

the yarns on one beam are held at regular tension and those on the other beam are held at slack tension

slack tension weave

warp or weft is in the bands to give puckered area stripes in slack tension weaves?

warp

slack tension warp yarns are longer in the ___ portion

unraveled

seersucker example of

slack tension weave

a hand produced, filling faced, plain weave complex fabric?

tapestry weave

___ create pattern with color or texture in tapestry weave

discontinuous filling yarns

woven ribbons, elastics, zipper tapes, trims, harnesses, and WEBBINGS are used in this complex weave

narrow fancy weave

2 threads woven together at the same time using a double rapier makes what fabric

velvet

which weave never uses chenile yarns?

pile

which weave type is used to make chenille yarn?

leno

loom to make dobby weave

dobby loom

loom to make extra yarn weaves

shuttle loom

bedford CORD used to make

bedspreads, upholstery, window treatments, slacks, and uniforms

loom to make jacquard weave

old method: jacquard loom

new method: electronic air-jet loom

loom to make momie weave

loom with a dobby attachment or electronic control

loom to make leno weave

plain or dobby loom

double cloth used in what type of end products?

coats, interiors (drapery)

a high, thick __ adds warmth as either the shell of a lining of coats, jackets, gloves, and boots

pile

___ are made in plain colors, stripes, and prints and is used in curtains, children wear and summer suiting

seersucker

woven elastics are what type of fabrics

narrow fabrics

ribs and half baskets are ___ fabrics

unbalanced

characteristics of warp yarns

stronger, more uniform, less stretch, higher density