IL26985A - Reversible reinforced woven fabric - Google Patents

Description

C O H E N Z E D E K & S P I S B A C H R E G O . PAT E T A TT O R N EYS 24, LEVONTIN STR., P. O. B. 1169 I E L - AV I V P A T E N T S & D E S I G N S O R D I N A N C E 16001/66 SPECIFICATION EEVBESIBLE BEIIflFOBCBD WOVEN FABBIC DOMIIIOR COESET COMPANY LIMITED , a Canadian corporation, of 4-50, Dorchester Street, Quebec City, Province of Quebec, Canada, HEREBY DECLARE the nature of this invention and in what manner the same is to be performed to be particularly described and ascertained in and by the following statement: Thia invention relates to the manufacture of woven fabrics and particularly to an improved woven reinforced fabric in whioh groups of stiffening threads are interwoven in spaced parallel arrangement to provide a reversible fabrio having stiffening ridges on both sides of the fabrio in staggered arrangement and extending in a weft-wise direction. Such reinforced or stiffened fabrics are particularly suitable for use in the bust seotions of brassieres, or in corsets or other foundation garments.

The essential feature of this invention consists in the provision of groups of parallel cotton weft threads, or picks, positioned oonsecutively, in a warp-wise direction, on eaoh side of the fabric and locked together by interwoven cotton warp threads, to form a finished reversible fabric having the characteristics of stiffness in a weft-wise direction and relative pliability in a warp-wise direction.

An alternative embodiment provides, a plurality of cotton weft threads, interspersed between the consecutively positioned upper and lower stiffening ridges, to provide a finished fabric having consecutive stiffened and unstiffened laterally extending seotions whioh provide stiffness in a weft-wise direction and an inoreased pliability in a warp-wise direction.

It is, therefore, the main objeot of this invention to provide an improved woven fabrio whioh includes stiffening ridges extending in a weft-wise direotion and positioned oonseoutively, in a warp-wise direotion, on eaoh side of the finished fabrio, to provide a reversible stiffened woven fabrio which will provide support on both sides.

Another object is to provide an improved reversible stiffened fabric in which the stiffening characteristics are erabod-ied in the woven, construction of the fabric, and thus the fabric A further object is to provide an improved stiffened wovei fabric which includes laterally extending sections of plain fabric woven between the consecutive laterally or weft-wise extending upper and lower stiffening ridges, to provide a fabric combining stiffness in a weft-wise direotion and increased pliability in a warp-wise direction, thus facilitating the use of this fabric in applications requiring close coverage of body contours · These and other objects and advantages of this invention will be further apparent by referring to the following detailed specification and figures, in which: Figure 1 is a plan view, to an enlarged scale, of a portioi of an improved reversible and stiffened fabric woven in accordance with this invention.

Figure 2 is a schematic cross-section on 2-2 of Figure 1, to a further enlarged scale, showing the manner in which the first and second top warp threads, and the bottom warp thread, are woven* Figure 3 is a seotion, similar to Figure 2 but in full detail, illustrating the manner in which the first top warp thread only is interwoven* Figure ¾. is a section, similar to Figure 2 but in full detail, illustrating the manner in which the seoond top warp thread onl is wo en* Figure £ is a seotion, similar to Figure 2 but in full detail, illustrating the manner in which the bottom warp thread only is woven.

Referring more particularly to the figures, the finished fabric 20 is woven to provide parallel weft-wise extending upper and lower stiffening ridges 22 and 1+, respectively, s-paoed consecutively in a warp-wise direction.

The core of each upper stiffening ridge 22 is formed by also of No, 60/2 Natural Cotton. The core covering is completed by two locking picks I.O and l|2, also of No. 60/2 Natural Cotton, placed one on each side of the core. The right hand side locking pick 1+2 also serves to lock in place the core of the lower stiffening ridge 21 ., formed on the reverse side of the fabric.

The core of each lower stiffening ridge 21; is formed by three picks IjJLj., lj.6, and I4.8, of No. 6θ/2 Natural Cotton. Picks Ijlj., I4.6, and I4.8, are covered by four picks £0, $2, and 6, also of No. 6Ο/2 Natural Cotton, with pick 1+2 serving to lock the cores in place, as previously stated.

The weaving process will be described beginning at the right hand side of the figures and proceeding towards the left hand side.

The fabric is woven simultaneously in the warp direction and consecutively in the weft direction, ie. upper and lower reinforcing ridges 22 and 2I4., respe ctively, are built up alternately top and bottom.

As previously mentioned t e warp threads are woven simultaneously. However, to simplify description, each warp thread will be considered separately, as follows; Referring to Figure 3, first top warp thread A passes under looking piok $6, whioh is positioned between adjacent upper stiffening ridges 22/ and then passes over and around looking piok I , Top warp A then passes downwardly and is interwoven with lower core cover picks 50, 52, 51+, and 56, of lower stiffening ridge 2I4.. Top warp A then passes upwardly between,., looking pick l2 and core pick , and is interwoven with upper core cover picks 32, 3I4., 36, and 39, of upper stiffening ridge 22. Upper warp A then passes downwardly and under locking pick 58 to start a new cycle of weaving operation. warp A, and is interwoven with lower core cover picks 50, 52, ¾·, and 56, in an interwoven direction opposite to that of top warp A. Top warp B then passes upwardly between locking pick l2 and core pick 30, together with top warp A, and then again divides from top warp A and is interwoven with upper oore oover pioke 32, 3U-, 3 , and 36, again in an interwoven direction opposite to that of top warp A.

Top warp B then passes downwardly and under locking. pick 58, together with top warp A, to start a new cycle of weaving operation.

Referring to Figure 5* lower v/arp C passes over and around locking pick 8 and under locking pick l\2. Lower warp C is then floated over core picks l^. and I .8, under core picks 30 and 28 and locking pick I4.O. Lower warp C then passes over and around locking pick 58 to start a new cycle of weaving operation.

Thus the cores and cover picks" of stiffening ridges 22 and 2I . are securely locked together between warp threads A and B and warp thread C, and are held against displacement from the designed ridge grouping and the parallel spaced relation between the upper and lower ridges in the longitudinal plane of the fabric.

In an alternative execution of this invention, additional picks will be positioned adjacent locking picks 58, to provide lateral sections of plain woven unstiffened fabric between the upper and lower stiffening ridges, for purposes of increasing the pliability of the fabric in a warp-wise direction.

In this alternative execution top warp threads A and B and lower warp thread C will be interwoven around the additional picks, in a manner similar to the interweaving of locking picks 58.

An example of a fabric woven as above described is as follows: HAPNSR QUALITY RC-226 Warp 2 BEAM JOB P Warp (Cont'd) 2 BEAM JOB (Cont'd) PILLING: 60/2 C.Pi Natural Cotton 17 Px Repeat SELVEDGES- 8/5 K.P. Cotton Bleach (Catch Cord) 50/2 C.P„ Natural Cotton (Selvedges) WARP PATTERN REPEAT TOTAL ENDS Bean 1 1 x 5300 5300 Beam 2 1 5300 10600 GEAR:- 76 - Dead Px PICK OFF LOOM: lj.36 .

PICK FINISH: \ 2 WIDTH IN REED: 66.9" WIDTH FINISH: 63/6.4." RIBS FINISH: 25/26 Ribs, each side ENTERING: 10 Harnesses (Weave) 2 Hamess-es (Selvedges) 12 TOTAL..

It? will be understood that, in · the figures, . the woven threads have been illustrated to a greatly enlarged scale in order to clearly show the details of the weave and the formation and locking of, the upper and lower stiffening ridges.

The permanent stiffness of the material is achieved by the weave design and characteristics of the raw materials used. Thus the use of fine threads (No. 6o/2) in the weave as afore described, combined with a conventional permanent finishing treatment, will produce a Weave offering improved support and long lasting qualities. The use of a finishing treatment will also enable the degree of stiffness and the shrinkage of the fabric to be controlled.

The weave afore described can be varied to increase or decrease the stiffness of the upper and lower stiffening ridges, or to increase or decrease the pliability of the lateral sections These variations can be achieved by increasing or decreasing the number or diameters of the picks or warp threads, or by varying the materials used in the fabric construction.

While there are above disclosed but a limited number of embodiments of the struoture of the invention herein presented, it is possible to produce still further embodiments without depart-ing from the inventive concept disclosed herein, and it is desired therefor that only such limitations be imposed on the appending claims as are stated herein, or required by the prior art*

Claims (1)

1. HA?IHG NOW particularly described ans ascertained the nature of our said invention and in what manner the same is to be performed, we declare that what '9 we claim is : lo A stiffened woven fabric comprising warp and weft threadSj, said fabric having parallel stiffening ridges extending outwardly and consecutively from the upper and lower surfaces thereof and in we t-wise directions, each of said stiffening ridges comprising a plurality of weft core threads grouped in parallel relation and substantially covered by a plurality of weft cover threads, and locking weft threads positioned on each side of the upper groups of said core threads, certain of said warp threads being interwoven with said locking threads and said cover threads and the remainder of said warp threads being interwoven with said locking threads and floated under said upper core hreads and over said lower core Jslfc reads to securely lock said core threads between said warp threads, said fabric characterized by relative stiffness on both sides in a weft-wise direction and relative pliability in a warp-wise direction,, 2o A woven fabric as set forth in Claim 1 including additional weft threads positioned between said locking threads and said warp threads being interwoven with said additional weft threads, to increase the pliability of said fabric in a warp-wise direction, 3» A woven fabric as set forth in Claim 1 in which adjacent upper and lower stiffening ridges are arranged in staggered relation to each other9 in the vertical longitudinal plane of the fabric . Ij.. A woven fabric as set forth in Claim 3 in. whioh one of said locking weft threads in each of said upper ridges serves additionally as a locking weft thread to an adjacent lower ridge. 5. A woven fabric as set forth in Claim 1 in which said warp and weft threads are of cotton and are of substantially similar diameters 9 series of three warp threads form a weave pattern with said weft threads, and in which said upper ridges comprise three' core weft threads, four cover weft threads and two locking weft threads, and said lower ridges comprise three core weft threads and four cover weft threads, two warp threads being interwoven with said looking weft threads then consecutively interwoven with the cover weft threads of the lower and upper stiffening ridges, and the other warp thread of the series being interwoven with said locking weft threads and floated over the lower core weft threads and under the upper core weft threads. 7. A woven fabric as set forth in Claim 6 including additional weft threads positioned between said locking weft threads, and said series of three warp threads being interwoven with said additional weft threads to provide a fabric having lateral unstiff-ened sections between the stiffening ridges. DATED THIS 29th day of November, 1966*. COHEN ZEDBK & SPISBACH . P.O.BOX 1169, TEL-AVIV Attorneys for Applicants