US2720226A

US2720226A - Fabric

Info

Publication number: US2720226A
Application number: US155203A
Authority: US
Inventors: Alfred L Helwith
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-04-11
Filing date: 1950-04-11
Publication date: 1955-10-11
Anticipated expiration: 1972-10-11

Description

Oct. 11, 1955 A. L. HELwlTH 2,720,226

FABRIC Filed April 11, 1950 IN VEN TOR.

United, .Sarti-Spaten' one@ 2,720,226 Patented' Gee' lill, 1955 Y FABRIG. y Alfred L. Helwith, New Rochelle, N. Y.

Application April 11, 1950, Serial No. 155,203

6 Claims. (Cl. 139-426) The present invention relates to textile fabrics, and, more particularly relates to a textile fabric having an optical ribbed effect transversely of the warp.

In my prior United States Patents Numbers 1,822,889 and 1,931,023 and my copending applications for United States Letters Patent, Serial Number 704,210, filed October 18, 1946, which matured into Patent No. 2,522,225, on September 12, 1950; Serial Number 155,201, filed April 11, 1950; and Serial Number 155,202, filed April 1l, 1950, the two latter now being abandoned, fabrics are disclosed having the desired ribbed effect with which the present invention is concerned. I have now discovered that such ribbed effect can be produced in still another manner.

Accordingly, an object of the present invention is to produce an optical ribbed effect of an improved character.

Another object is to produce such ribbed effect in a simple and inexpensive manner.

A further object is to provide a fabric having such ribbed effect which can be produced on conventional weaving machines by employing conventional weaving methods.

Other and further objects will be obvious upon an understanding of the illustrative embodiment about to be described, or will be indicated in the appended claims, and various advantages not referred to herein will occur to one skilled in the art upon employment of the invention in practice.

In accordance with the invention, the foregoing objects are accomplished by providing a textile fabric having opposite smooth surfaces and an evenly woven warp and weft of the same color, the weft yarns being of a uniform material, and the warp consisting of filament and spun yarns arranged alternately in succession for producing the optional ribbed effect.

In the drawing:

Fig. l is a considerably enlarged plan view of a section of a textile fabric illustrating the invention.

Fig. 2 is a greatly magnified sectional view taken along the line 2-2 on Fig. l.

Fig. 3 is a plan view of a section of the textile fabric shown in Fig. l illustrating the normal appearance thereof.

Referring to the drawing in detail, there is shown a section of a textile fabric which is constructed of a .suitable weave, is of a uniform color, and has smooth opposite surfaces in a sense that it is free of any mechanical ribs such as may be produced by a special weave.

This fabric, however, is characterized by a rib appearance as shown at 11 (Fig. 3), whereby the value of the fabric is enhanced. This rib appearance is purely optical in nature, as will be made apparent hereinafter, and is perfectly uniform and neat. The ribbed effect may eX- tend either horizontally or vertically in the garment or article formed from the fabric, but for manufacturing convenience is arranged to extend transversely of the warp because it is more practical to provide a warp beam with a special arrangement of warp yarns or ends than toattempt to` accomplish thesame resultl by specialoperation of the shuttleY carrying the weftyarns.

Accordingly, as shown in Fig. 2', this effect mayY be produced by arranginglthewarp yarns'forends so that they consist ofa-lternate` consecutive` spun-yarns 1'2 and filament yarns 14. p l v y By the term spun yarn-'is meant an assemblageofy discrete staple fibersor staple filaments, eitlierfnaturalr or manufactured, laid and twisted together so as to form a continuous strand. For example, such staple fibers or filaments may be composed of cotton, ax, or other vegetable fibers, Wool, silk, rayon or nylon, and the spun yarns may be composed of one or a mixture of two or more of such fibers or filaments.

By the term filament yarn is meant an assemblage of continuous strands of indefinite length, such as rayon, nylon, or silk, or mixtures thereof. Compared to staple fibers, a filament possesses extreme length and often may be measured in thousands of yards without a break.

Spun yarn, as compared with filament yarn, is comparatively loose, hairy or bulky and dull in appearance, and filament yarn is quite smooth and lustrous, and appears to be laid together more compactly. Also, a filament yarn of a tensile strength equal to that of a spun yarn has a smaller diameter than the spun yarn. These characteristics which distinguish spun and filament yarns are advantageously utilized to provide the contrast whereby the ribbed effect is produced.

In practicing the invention the spun yarn and filament yarn may be composed of the same material, for example, nylon, rayon or silk or of smaller mixtures, or the spun yarn may be composed of fibers of a material or a mixture of materials different than the material or mixture of materials of the filament yarn. Also, all the

warp yarns

12 and 14 may be of about the same diameter, or the warp yarns 12 may be of a greater or lesser diameter than the warp yarns 14.

The present invention also contemplates that the warp yarns 12 and/or 14 are composed of a mixture of strands of the spun and filament type. For example, the yarn 12 may consist of a mixture of a major portion of spun strands and a minor portion of filament strands and the yarns 14 may consist entirely of filaments or a mixture of a major portion of filaments and a minor portion of spun strands. Alternately, yarns 14 consisting of such a mixture of strands could be alternated in the fabric with v yarns 12 consisting entirely of spun fibers.

The weft yarns 15 are preferably of uniform color, diameter and material, and of the same composition as one of the warp yarns.

From the foregoing description it will be seen that the present invention provides a regularly woven textile fabric having an optical ribbed effect which is produced in a simple, practical and economical manner. The fabric is readily produced on standard weaving apparatus by arranging the yarns on the warp beam as desired.

As various changes may be made in the form, construction and arrangement of the parts herein, without departing from the spirit and scope of the invention and without sacrificing any of its advantages, it is to be understood that all matters are to be interpreted as illustrative and not in any limiting sense.

What is claimed is:

l. A textile fabric having opposite smooth surfaces, and being interwoven of warp and weft yarns of the same color, all of the weft yarns being of the same diameter and material, and the warp comprising filament yarns alternating in single succession with mixed yarns constructed of filaments and interspersed staple fibers.

2. A textile fabric as in claim 1, wherein all of said warp yarns are of the same material.

3. A textile fabric as in claim l, wherein said iilament and mixed yarns are of different materials.

4. A textile fabric having opposite smooth surfaces, and being interwoven of warp and weft yarns of the same color, all of the weft yarns being of the same diameter and material, `and the warp comprising spun ber yarns alternating in single succession with mixed yarns constructed of filaments and interspersed staple fibers.

S A textile fabric as in claim 4, wherein al1 of said warp yarns are of the same material.

6. A textile fabric as in claim 4, wherein said spun ber and mixed yarns are of different materials.

UNITED STATES PATENTS Bloch Sept. 14, 1943 Womble May 14, 1946 Bloch July 1, 1947 Moller Dec. 27, 1949 Crawley Oct. 28, 1952 FOREIGN PATENTS Great Britain May 29, 1940