Gauze (sometimes known as leno weave) is defined in Note 3 to this Chapter.
In plain gauze the crossing threads run alternately to the right and left of each standing thread passing over the weft every time but crossing under the standing threads; the standing warp threads are always on one side of the weft, and the standing warp and the weft are not interlaced but are held together by the crossing warp.
Variations can be obtained by the crossing threads crossing with each other (so-called crocheted gauze, Marly gauze), by inserting two or more weft threads together through the loops formed by the standing and crossing threads, by using two or more standing threads per crossing thread and vice versa, etc.
This heading also includes :(1) Broche gauze, manufactured with an extra thread (broche thread) introduced during the weaving process to give the effect of designs on a gauze background. (2) Fabrics comprising parts of gauze and parts woven by any other weave whatever their relative proportions. These usually have the effect of stripes running warpwise, checks or other varied designs.
Gauze is usually loosely woven and therefore lightweight; it is chiefly used for curtaining; certain varieties are manufactured into chenille yarn by cutting into narrow strips in the direction of the warp.
The different types of gauze vary greatly in appearance, and the designs produced during the weaving process are also very varied, and they should not be confused with the broche or other fabrics of Chapters 50 to 55, hand or machine made lace, embroidery, tulle or other net fabrics of this Chapter.
The heading does not apply to plain loosely woven fabrics of plain weave, such as those chiefly used for bandages and dressings; these are often called gauze but fall in heading 30.05 (if medicated or put up in forms or packings for retail sale for medical, surgical, dental or veterinary purposes) or Chapters 50 to 55.
The heading also excludes bolting cloth (heading 59.11).
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