Fig. 28
TWO-PLY WARP AND WEFT; 4 COLOURS IN EACH
Warps: A, Black; B, Red; C, White; D, Olive
Wefts: A, Black; B, Red; C, White; D, Olive
Where a more ambitious colour effect is desired, four warps, each of a different colour, can be employed instead of two pairs. These, combined in different ways with four wefts of various colours, obviously give scope for a great variety of shade and design.
Fig. 29
THREE-PLY WARP AND TWO-PLY WEFT. SECTION THROUGH WARP
A, Black stuffer warp; B, C, D, E, Coloured warps; W, X, Y, Z, Wefts of same colours as B, C, D, E
The so-called Art Squares—not a very satisfactory name—are generally made with two coloured warps, one cotton chain, and one jute stuffer beam. The design is operated, as, of course, in many other kinds of loom, by a Jacquard mechanism. The blanks or perforations in the pattern cards cause some of the chain threads to be lifted up while others are left down, the space between them forming the shed, through which the shuttle passes, carrying the weft. Where the chain ends only are lifted, the weft will show; where the stuffer is raised, it will cover the weft. There may be three or four shuttles, each carrying a different coloured weft, and one or other of the wefts will appear on the surface of the carpet all along the shot, while the remainder will remain hidden. Sometimes one shuttle carries a cotton weft.
In some weaves the black stuffer is occasionally brought to the surface so as to obtain an additional effect, or, alternatively, a two-colour chain warp is employed, without a stuffer.