Woven Shirred Effect
Another example of an effective form of fancy elastic weaving may be seen at Fig. 3, where the center or rubber part of the web is made to imitate a shirred effect. In the regular method of shirring a piece of plain elastic web is used, under tension, and is passed through a sewing machine where a wider piece of ribbon or some other light non-elastic material is stitched to it by a series of needles running side by side. When the web contracts, upon being released from tension, the non-elastic part forms in a regular fluting on the face of the web. At the same time the remainder of the wider non-elastic section frills up on either side of the elastic part.
Fig. 1A.—Harness and Chain Draft for Fig. 1
Fig. 2A.—Harness and Chain Draft for Fig. 2
The method of producing this effect direct upon the loom is done by an interchange of weaves, first making a short section of single cloth and then changing to a short section of double cloth weave. There being no binder warp employed to knit the upper and lower cloths together, the strands of rubber will lie between the two cloths so formed. Upon the contraction of these strands of rubber the outer cloths are thrown out, and appear as flutings on the web, while the side sections in which there is no rubber will complete the frill effect. This woven method has in it the advantage of making both sides of the web alike, whereas in the stitched shirring the back of the goods is not so presentable and unfits it for many uses. It also eliminates the added expense of labor in assembling the different parts.