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21 Cards in this Set
- Front
- Back
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woven fabrics
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made by interlacing two sets of yarns at right angles to each other
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warp yarns or ends
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the length wise yarns
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filling yarns or picks
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the width wise yarns
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off grain or bias
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a direction not parallel to on grain yarns
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loom
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woven fabric is produced on this object
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shuttle
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wooden device with a bobbin placed inside with filling yarn wound around it
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shuttless looms
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today most looms used for productivity are these. yarns come from cones placed at the sid of the loom. Once the filling yarn...
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projectile looms
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uses a small projectile to insert the fillibg yarns
ex> denim, sheeting |
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rapier loom
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uses a rapier rod or steel tape to pull the filling yarn across the loom or a double rapier where te filling yarn is transfered at the midway point from one rapier to the other.
ex> wool, silk |
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jet looms
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take the filling yarn across the loom by using high speed jet of either air or water.
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air-jet looms
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initial propulsion force is provided by a main nozzle. Rela nozzles along the shed help carry the yarns across the loom
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water-jet looms
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there is only a main nozzle to provide the propulsion of the filling yarn
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Multiphase looms
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this system is not as versitile as other looms, but it can prodce fabric at a rate of 2,800 ppm with a wef insertion rate of 5,500 meters/minute (6,015 yards/minute)
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illing yarms are inserted at a constant rate of...
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650 ppm
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situation..
warp yarns moved at the rate of 5 inches per minute and the speed of the loom is 650 ppm, the pics per inch of the resulting fabric would be? |
130 ppi (650/5)
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face side of fabric
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better appearanace and usually forms the outside of the garment
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back side
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inside of garment
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yards per inch
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a fabric is given two numbers with an x between them.
EX>80x74 "eighty by seventy four" means 80 yarns per inch in the warp and 74 yarns per inch in the filling |
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weave float
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when once yarn does not interlace with the next adjacent yarn, but passes over two or more adjacent yarns
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3 basic fabric weaves
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plain weave,twill weave, and satin weave
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plain weave
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the simplest and most used weave
EX> sheer to heavy |
