Textiles: weaving – Special-type looms
Patent
1994-10-07
1996-09-10
Falik, Andy
Textiles: weaving
Special-type looms
139383B, 66193, D04B 3906
Patent
active
055536425
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The problem which the invention proposes to solve is to provide a textile backing having a decorative effect or effects.
2. Description of the Prior Art
Generally, in known processes, a backing is used which is usually woven on a Jacquard loom, or a meshed backing made on a crochet loom. Such processes make it necessary to use heavy components and complex motion.
In the case of a Jacquard loom shuttles are used, the capacities of which are limited. In addition, in a Jacquard technique speed is limited having regard to the very high mechanical stresses that occur, especially in regard to the sley, which is of the "swivel shuttle attachment" type.
In knitting loom technology, the loom generally employs a beam and a bar guide which constitute a mechanical assembly that necessitates a long setting-up time and reduced production rate.
In both cases, the reserve yarn capacity is very limited, so that it is difficult to make use of yarns of large cross section. Finally and above all, these techniques are poor from the economic point of view and as regards speed.
A process is known from Patent FR 2 339 011 that combines the techniques of a weaving loom with those of a crochet loom. That document essentially describes the formation of a basic textile backing on a loom, with the simultaneous formation of any kind of decorative effect whatsoever. The decorative effect is anchored on to the textile backing by means of locking meshes which are made simultaneously with said backing. However, the solution for achieving these objects is unsatisfactory, since the means for achieving it are so complicated that the results obtained are not satisfactory.
SUMMARY OF THE INVENTION
An object of the invention is to provide a remedy for these drawbacks in a simple, sure, effective and rational way.
The problem that the invention proposes to solve is to obtain a textile backing with decorative effects by using fast looms, including shuttleless looms, in order to obtain very high production rates, by combining the techniques of weaving and stitching.
According to a basic feature of the invention, a process has been conceived and applied, for the automatic manufacture of a textile backing with decorative effects, in which: automatic loom, effect is formed and anchored on the textile backing by means of meshes made simultaneously with the basic backing, warp yarn lap of the basic backing, basic textile backing, basic textile backing, again, and simultaneously, the locking mesh yarn is shifted according to a circle arc movement and using binding guides, so as to twill the path of said needles, thereby forming the decorative weft's locking mesh and flattening it against the needles, displaced in translation at right angles to the warp, simultaneously lowered, drawing the mesh-forming yarns by creation of a loop of meshes enclosing the decorative weft, define portions of the floating decorative weft parallel to the warp, thereby constituting loops of decorative weft which are variable in amplitude and length, in accordance with a predetermined program.
For the application of the process, and for carrying out each of its characteristic steps on any type of high speed loom, the device comprises: back-and-forth motion so as to subject them to vertical motion in a straight line, respectively on and under the warp and parallel to this latter, constituting a "square" cycle, the needles, to a support or supports that receive the locking mesh yarn, rectangular motion members adapted to detain temporarily the weft or wefts of the decorative effect, decorative weft so that its displacements can be modified at will.
In order to solve the problem of obtaining decorative effects, the distribution means for the decorative weft or wefts comprise at least one yarn guide supporting said weft, said yarn guide being coupled to a transfer carriage displaceable in straight line motion, control of which is provided by a programmable central unit.
In order to solve the problem of modifying the decorativ
REFERENCES:
patent: 1811081 (1931-06-01), Hartwell
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patent: 3746051 (1973-07-01), Mohelnicky et al.
patent: 4134433 (1979-01-01), Horacek et al.
patent: 4581905 (1986-04-01), Bonaschi
patent: 4608290 (1986-08-01), Schnegg
patent: 4723424 (1988-02-01), Wunner
Laurent Jean
Tillon Georges
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