BE896102A - Pile bonding structure for double-shot cut pile fabric - with two-sided pattern doubles pile density and eliminates pattern boundary mix - Google Patents

Abstract

The pile thread bonding structure is intended for weaving a double-shot (ie. two-shed) pile fabric, cut on the loom to produce two cut pile fabrics with woven-in two-sided pattern. In the existing structure, e.g. using five pile warp threads (I-V), the same pile warp threads are woven into the upper and into the lower fabric and usually equally divided between them, i.e. all threads (I and II) and the odd-numbered threads (III) in one, and threads (IV) and (V) and the even-numbered threads (III) in the other fabric. In the present structure, the number of pile threads is doubled and all odd threads of both warps are bonded into one, and all even threads of both warps into the other fabric, whilst the pattern-forming pile threads, are bonded around each weft thread of the two base fabrics. Weaving double-shot (i.e. two-shed) cut pile fabrics with woven-in two-sided pattern. If both fabrics are woven with the same weft density, the arrangement provides a pile density which is double that of the existing structures as the pile threads are bonded around each weft thread. The pattern obtd. does not contain thread mix errors at pattern boundary transitions.

Description

       

   <EMI ID = 1.1>

  
the double-piece carpets with interlaced drawing "<EMI ID = 2.1>

  
of double-coil bound double-piece carpets with interlaced drawing. It concerns a new way of binding the pile threads with the ground fabric. More specifically, it concerns a two-tier bond. (See the longitudinal section of this fabric structure in Figure 1.)

  
Just an explanation of what is meant by a double-coil bound double piece carpet with interlaced drawing.

  
- Double-coil means that it is a fabric structure that is woven on a weaving machine with two yawns on top of each other.
- Of course it is a double piece carpet, which means that one weaves two base fabrics one above the other, but at a certain distance from each other. They are woven together by means of one or more pile chains. The two pieces are then cut from each other on the loom itself, in order to obtain an upper and an upper fabric covered with pile stubble.
- The way of weaving together is done in such a way that, depending on the drawing (usually), one pile chain connects the two fabrics; the other non-drawing pile threads are woven into the bottom part, but usually into the bottom and top.

   This means that these wires remain part of the bottom part and the top part, respectively.
- When one speaks of interlaced drawing, it means that one sees the drawing on the back of both tissues. In this classic structure, the pile threads only bind around the outer shoots of any soil fabric.

  
The technique described below aims at the following two advantages over the ordinary structure:

  
1 [deg.] - it allows to obtain twice the pile density because the pile threads around it bind every weft shoot, which is not the case in the classic two-shoot bond, whose length

  
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2 [deg.] - obtain a drawing that no longer shows "mixing outlines", as is the case in the classic two-shell bond of figo2. Mixing contours mean: errors on the transitions in the drawing. These errors are indicated by arrows

  
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In order to obtain this double advantage, use must be made of the double number of pile threads compared to the ordinary structure of Fig. 2. It is true that in the ordinary structure the "bound" pile threads ", that is, these pile threads that do not have a drawing. are woven into the base tissues. The distribution is usually 50/50, in such a way that they are always the same polo chains that are respectively in lower and upper weave.

  
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usually happens so that I, II and the odd pole threads of III weave in one piece and that JV, V and the odd pole threads of III weave into the

  
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Thus, in the structure forming the object of the invention, the number of pile threads per pile chain is doubled. The weaving then takes place in such a way that all the odd pile threads of each pile warp bind in one fabric and all the even pile threads of each pile warp bind in the other weave. At the same time, the pile threads forming the drawing are bonded around each shoot of the base fabrics, as clearly shown in Figure 1.

  
To clearly demonstrate the binding or operation of the pile threads

  
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drawn in weaving order in the classical used, as in the newly proposed binding. This weaving sequence is indicated in both figures by the numbers 1 - 1 ', 2 - 2'. In reality, so during and after weaving, the weft shoots:
- in figure 1 like this: 1 above 2 in the bottom part and <EMI ID = 9.1>

  
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Obtaining two layers of weft shoots has nothing to do with

  
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shoots. Such ground fabric arises from the fact that two chains are used: a tension chain and a slack

  
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works and two limp warp threads that conflict in 2/2.