(57) A process for weaving superimposed ribbons which are stitched to each other comprises
a sequence of successive cycles, in which each cycle comprises the steps of:
- providing on a loom (10) a first plurality of warp threads (21) which are intended
for weaving a lower ribbon (1), subdividing them between a first upper row (24) of
threads and a first lower row (25) of threads so as to define between the first rows
of threads a first shed (26),
- providing on the loom a second plurality of warp threads (31) which are intended
for weaving an upper ribbon (2), subdividing them between a second upper row (34)
of threads and a second lower row (35) of threads so as to define between the second
rows of threads a second shed (36), wherein the second lower row (35) of threads is
positioned higher than the first upper row (24) of threads,
- passing a first weft thread (23) through the first shed (26) and a second weft thread
(33) through the second shed (36),
- moving at least one or more of the warp threads (21) of the lower ribbon (1) between
the first upper row (24) and the first lower row (25) so as to bind the first weft
thread (23),
- moving at least one or more of the warp threads (31) of the upper ribbon (2) between
the second upper row (34) and the second lower row (35), so as to bind the second
weft thread (33),
- providing on the loom at least one stitching thread (17) which extends between the
pluralities of warp threads (21, 31), wherein the stitching thread is moved, at the
time of one or more cycles, between the second upper row (34) and the first lower
row (25), and vice versa, so as to bind together the first and second weft thread
(23, 33).
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