Making slub yarn on open-end machine

Details Making slub yarn on open-end machine Making slub yarn on open-end machine

1992-05-11

1995-03-14

Ryan, Patrick J.

Textiles: cloth finishing

Rubbing

Abrasive

26 27, 57404, 57408, 57409, 57411, 19 97, 19112, 19114, 428255, 8478, D01H 700, D02J 100, D02J 300

Patent

active

053966880

ABSTRACT:
Denim fabric is made from novelty cotton yarn having irregularly spaced irregularities (e.g. slubs) about one-half inch to two inches in length. The cotton novelty yarn is made by separating cotton sliver into cotton fibers, and acting on the cotton fibers with a negative wire combing roll, and then twisting the cotton fibers into the cotton novelty yarn. The negative wire combing roll has a tooth angle of about -0.01.degree. to -15.degree.. The novelty cotton yarn is made into a warp of about 54-100 (e.g. 54-78) ends per inch, and is ring dyed so that the core of the yarn remains white. The warp is woven with a filling yarn to produce a denim fabric with a weight of about 5 oz.-17 oz. per sq. yd. having the weave and yarn size selected so that a tight construction is provided which highlights the slubs. The fabric is subjected to surface abrasion to remove the surface of dye on the slubs to show a lighter slub than body of the fabric.

REFERENCES:
patent: 4361007 (1982-11-01), Sumner
patent: 4435955 (1984-03-01), Sumner
patent: 4805395 (1989-02-01), Stahlecker et al.
"Effects of Combing-Roll Wire Design . . . " by Simpson & Murray, Textile Research Journal, Sep., 1979, pp. 506 to 512.
Technical Bulletin FRP 503 by Cotton Incorporated, 1986.
"Effect of Carding Conditions on Trash Release in Open-End Spinning" by Supanekar and Nerurkar, Jan., 1979, Textile Research Jouranl, pp. 26-27.
BSS "Basic dimensions of cones and tubes for winding textile yarns", 1969, four pages.

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