US1947465A

US1947465A - Textile fabric

Info

Publication number: US1947465A
Authority: US
Inventors: Dreyfus Henry
Original assignee: Henry Dreyfuss Associates LLC
Priority date: 1930-04-15
Filing date: 1932-04-06
Publication date: 1934-02-20
Anticipated expiration: 1951-02-20

Description

Patented Fete. 3%34 TEX FABEHG Henry Dreyfus, London, England No Drawing. @riginal application April 15, 1930), Serial No. 444,619, and in Great Britain April 29, 1929.. Divided and t application April 6, 1932. Serial No. 603.6%

8 Glaims.

This application is a divisional application from application S. No. 444,619 filed 15th April, 1930, and the invention relates to the production of textile fabrics, and more particularly woven fabrics.

The object of the invention is to simplify or improve the production of crepe-like or figured" or pebbled efiects in woven fabrics.

The method of producing crepe fabrics as ordinarily practised'consists in employing as weft or both weft and warp two kinds of thread, each highly twisted, the twist of one being in the opposite direction to that of the other. These two threads alternate with each other in the fabric, the usual arrangements being either one thread of one kind alternating with a thread of the other kind, or an alternation of pairs of like threads, and in either of these arrangements, each weft thread is contained in a separate shed. After the fabric is woven, it is subjected to shrinking, and the consequent contraction of the high twist threads produces the crepe effect required.

According to the present invention, crpe or like eifects are produced by the use of a. composite thread consisting solely of two threads, at least one of which is highly twisted. Preferably both are highly twisted, but in opposite directions. The high twist threads may be doubled with low twist threads before their association into the composite threads.

For use as weft, the two threads may be simply parallel wound on to a weft plrn or other weft package. They may be sized together before winding, if desired. The two threads may be doubled together, this form of composite thread being capable of use both as a weft and as a warp thread.

A preferred form of composite thread, capable -of use both as weft and warp, consists of two threads highly twisted in opposite directions, and doubled together. The doubling should be light in comparison with the degree of twist imparted to each thread.

The invention may be used for the production of crepe-like effects in all kinds of, materials. Thus, the component threads may consist of filaments of cellulose acetate or other organic derivatives of cellulose, which materials do not give good crpe efiects by the normal methods employed. Likewise, threads of natural silk, cotton, wool, or artificial silk of the reconstituted cellulose type may be used, the crepe eifect being evident immediately on weaving the fabric. If desired, shrinking may be resorted to to enhance the crping 01' thefabric.

effects, since the effect produced does not depend on the use of two kinds of weft thread. It is, however, within the scope of the invention to use two kinds of composite thread, of the same or different composition, one thread being doubled in the opposite direction to the other, in which case, a two-box loom is necessary for the weaving of the fabric. Again, shrinking of the fabric may be resorted to, particularly when the fabrics consist of or contain materials which are normally subjected to shrinking in ordinary crping processes.

The following are given as examples of composite threads which are particularly suitable for producing crepe efiects in fabrics of cellulose acetate, but it is to be understood that the invention is not in any way limited thereby.

Example I A composite thread is formed from two '75 denier threads of cellulose acetate, one having 55. turns per inch of left-hand twist and the other 55 turns per inch of right-hand twist. The two threads are doubled together with 10- 12 turns per inch in either direction.

Example II A composite thread consisting of a 100 denier thread of cellulose acetate having 60 turns per inch of right-hand twist and a denier cellulose acetate thread having 40 turns per inch of left-hand twist, the two threads being doubled together with 20 turns per inch of left-hand twist.

This thread may be used alone in a single-- box loom, or in a two-box loom alternately with another composite thread consisting of a 100 denier cellulose acetate thread having 60 turns per inch of left-hand twist and a 70 denier cellulose acetate thread having 40 turns per inch of right-hand twist, doubled together with 20 turns perinch of right-hand twist.

The threads described in the above examples may be used as weft or warp alone or as both warp and weft to give excellent crepe-like efi'ects. Where the oppositely twisted threads of the sec- Eli!) end example are used, it is convenient to insert two picks of one thread alternately with two picks of the other thread.

What I claim and desire to secure by Letters Patent is:

l. A textile filling strand comprised of a pl rality of individually twisted ends temporarily maintained in parallel but untwisted relation by a removable bonding agent.

2. A textile strand comprising two ends of opposite twist temporarily maintained in parallel but untwisted relation by a removable bonding agent.

3. A textile filling strand comprised of a p1u-. rality of individually twisted ends which are sized together so as to be temporarily maintained in parallel but untwisted relation.

4. A textile strand comprising two ends of opposite twist which are sized together so as to be temporarily maintained in parallel but untwisted relation.

5. A textile filling strand comprised of a plurality of individually twisted ends of cellulose memes acetate which are sized together so as to be temporarily maintained in parallel but nntwisted relation.

6. A textile strand comprising two cellulose acetate ends of opposite twist which are sized together so ,as to be temporarily maintained in parallel but untwisted relation,

l. A composite thread for use in the production of fabrics having crepe-like or pebbled effects, said thread consisting solely of two threads both of which are highly twisted, but in opposite directions, said threads being sized together and parallel wound on to a weft package.

8. A crepe fabric comprising a series of warp strands and a series of separate filling strands of alternately .opposite twist. each shed of warp strands embracing two filling strands of opposite twist, the two filling strands in each warp shed being separate from one another and non-intertwisted and maintained in parallel relationship by a removable bonding agent.

HENRY DRF SZFUS.