Glossary

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There are 18 names in this directory beginning with the letter J.
J-BOX
A J-shaped holding device used in continuous operations to provide varying amounts of intermediate material storage such as in wet processing of fabrics and in tow production. The material is fed to the top and pleated to fill the long arm before being withdrawn from the short arm.

J-CUT
In tufting cut-pile carpet constructions, uneven cutting of the loops caused by poor adjustment of knives and hooks or excessive tension.

JACK
1. A blade having high and/or low butts used to actuate the movement of latch knitting needles. 2. Part of a dobby head designed to serve as a lever in the operation of the harness of a loom.

JACKET
1. A woven or felted tubular sleeve for covering and shrinking on a machine roll. 2. A short coat. 3. In polymer manufacture, an external shell around a reaction vessel. For example, jacketed vessels are used when heat-transfer medium is circulated around the vessel.

JACQUARD
system of weaving that utilizes a highly versatile pattern mechanism to permit the production of large, intricate designs. The weave pattern is achieved by a series of punched cards. Each card perforation controls the action of one warp thread for the passage of one pick.The machine may carry a large number of cards, depending upon the design, because there is a separate card for each pick in the pattern. Jacquard weaving is used for tapestry, brocade,damask, brocatelle, figured necktie and dress fabrics, and some floor coverings. A similar device is used for the production of figured patterns on some knit goods.
Also see LOOM

JASPE
1. A fabric used for suiting, draperies, or upholstery characterized by a series of faint stripes formed by dark, medium, and light yarns of the same color. 2. A term describing carpet shaving a faint striped effect.

JEAN
Cotton twill fabric, similar to denim, but lighter and finer, in a 2/1 weave for sportswear and linings.

JERK-BACK

JERKED-IN FILLING

JERSEY
1. A circular-knit or flat-knit fabric made with a plain stitch in which the loops inter mesh in only one direction. As a result, the appearance of the face and the back of a jersey fabric is wholly different. 2. A tri-cot fabric made with a simple stitch, characterized by excellent drape and wrinkle recovery properties.
Also See TRICOT

JET
1. A device used to bulk yarns by introducing curls, coils, and loops that are formed by the action of a high velocity stream, usually of air or steam. See TEXTURING Also see AIR JET METHOD 2. Also see SPINNERET

JET DYEING
High temperature piece dyeing in which the dye liquor is circulated via a Venturi jet thus providing the driving force to move the loop of fabric.
Also See DYEING

JET DYEING MACHINE
A high-temperature piece-dyeing machine that circulates the dye liquor through a Venturi jet, thus imparting a driving force to move the fabric. The fabric, in rope form, is sewn together to form a loop.

JET LOOM
A shuttle less loom that employs a jet of water or air to carry the filling yarn through the shed. See WEFT INSERTION
Also see WATER-JET LOOM

JIG
A machine in which fabric in open width-form is transferred repeatedly from one roller to another, passing each time through a bath of relatively small volume. Jigs are used for scouring, dyeing, bleaching and finishing.

JUTE
A bast fiber used for sacking, burlap, and twine as a backing material for tufted carpets.

JUTE BUTT
The flaggy lower end of jute fiber that is cut off in preparing jute for market. The fibers are 0.4 to 1 inch in length. Jute butts are used in twines and coarse bagging.

JUTE COUNT
The weight in pounds of a spindle of 14,400 yards of yarn.


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