US2069295A - Elastic fabric with leno weave - Google Patents

Description

Feb. 2, 1937. H. w. WILSON ELASTIC FABRIC WITH LENO WEAVE Filed Nov. 18, 1935 J2 10 JL 10 I in M 32in Him Patented Feb. 2, 1937 UNlTED STATES ELASTIC FABRIC WITH LENO WEAVE Application November 18, 1935, Serial No. 50,298

1 Claim.

This invention relates to an elastic fabric of an open work or ventilated type which embodies a leno weave in its construction.

It is the general object of my invention to pro- 5 vide an improved elastic fabric of the type described, Which will be of a firm and substantial construction as well as of pleasing appearance.

A further object is to provide a leno fabric in which all of the weft threads are effectively selil cured in the fabric and in which all loose or float threads are avoided.

My invention may be embodied in many different weave constructions, and the fabric may be fully elastic or partially elastic warp-wise only, or

15 may additionally be fully or partially elastic weft-wise.

Preferred forms of my invention are shown in the drawing, in which- Fig. 1 is a plan view of my improved fabric, and

20 Figs. 2 and 3 are diagrammatic plan views of modified constructions.

Referring to Fig. 1, I have shown a portion of a ventilated or open-work elastic fabric comprising regular elastic warp threads Ill and leno 25 elastic warp threads II and I2. I have also shown the fabric as comprising a plurality of elastic weft threads W, with the weft threads occurring in each repeat of the pattern numbered consecutively from I to I2 respectively.

The warp threads III, II and I2 are arranged in groups or sets, with the sets of leno threads II and I2 spaced apart weft-wise and preferably arranged alternately, with a set of regular warp threads Ill interposed between each two sets of 35 leno warp threads II and I2.'

Assuming that the fabric is woven upward (or in the direction of the arrow a in Fig. 1), the leno warp threads II are shown'as douped or crossed between the picks I and 2 and as recrossed between the picks 2 and 3. All of the leno warp threads are then woven in the same manner as the regular warp threads during the insertion of the picks numbered 4, 5 and 6. The leno warp threads I2 are then douped or crossed between the picks 1 and 8 and recrossed between the picks 8 and 9, after which the plain weave is resumed for the picks III, II and I2. The pattern then repeats, with the crossing and 50 recrossing of the leno threads II and I2 again occurring between the picks I, 2 and 3, and the picks 8, 9 and II) respectively. With this construction, it will be evident that open-work or ventilating openings will be formed .55 alternately by the sets of leno warps II and the sets of leno warps I2, and that these ventilating openings will be spaced apart both warp-wise and weft-wise, preferably with the openings of one set intervening between the openings of the other set, also both warp-wise and weft-wise.

In this way I produce a ventilated elastic fabric of a much more firm and substantialconstruction than fabrics in which the leno weave is continuous and provides parallel ventilating openings extending the length of the fabric. I 10 also entirely avoid all loose or float threads, either warp or weft, on either face of the fabric.

In the construction shown in Fig. 1 I have indicated the use of all elastic warp threads and all elastic weft threads, thus producing a fully elastic two-way stretch fabric. It will be understood, however, that, as commercially woven, additional non-elastic warp or weft threads (not shown) may be introduced or may be substituted for someof the elastic warp or weft threads.

In Fig. 2 I have indicated diagrammatically a construction in which regular and leno elastic warp threads I0, I I and I2 are used as above described, but in which the weft or filling F is nonelastic, thus producing a one-way stretch fabric.

In Fig. 3 I have similarly indicated diagrammatically a ventilated fabric in which regular and leno elastic warp threads III, II and I2 are used as previously described, but in which both elastic weft threads and non-elastic weft threads 2| are utilized.

It will be understood that the particular weave and the length of the pattern repeat is illustrative only, and that both the warp-wise and weft-wise spacing of the ventilating openings may be varied as desired.

The essential feature of my invention is e provision, by leno construction, of an arrangement of ventilating openings spaced apart, both 0 warp-wise and weft-wise, and separated both warp-wise and weft-wise by continuous portions of regular weave.

While I have shown the two sets of openings as alternating and interposed in both directions, other closely similar arrangements may be substituted within the scope of my invention.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set 5 I alternating transversely of the fabric and with every other set formed entirely of leno elastic warp threads, the leno warp threads in certain sets being douped about each other in interlooped pairs on successive picks at points in the fabric spaced substantially apart warp-wise by a plurality of interposed picks in which no leno warp threads are douped and with a set of regular elastic warp threads disposed at each side thereof, and the leno warp threads in the remaining sets being douped about each other in interlooped pairs on successive picks at other points in the fabric which are spaced substantially apart warp-wise by a plurality of interposed picks in which no leno warp threads are douped and with a set of regular elastic warp threads disposed at each side thereof, and the douped portions of said remaining sets being located warp-wise between the douped portions of the first-named sets of leno warp threads and being substantially spaced warp-wise from each of said douped portions.

HENRY W. WILSON.

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