Method for spinning fancy yarns, machine for spinning fancy yarns by said method, and fancy yarns produced by said method
A fancy yarn, spinning technology, applied in the direction of spinning machine, yarn, textile and paper making, etc., can solve the problems of not allowing color contrast, difficult spinning operation, etc., to achieve the effect of enhancing effect and enhancing quality
Inactive Publication Date: 2016-04-06
PINTER KG
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Problems solved by technology
However, the presence of the two support yarns makes the spinning operation more difficult and does not allow to obtain the desired color contrast, since the effect fibers cannot be fully joined and combined with the base fibers of the two support yarns
Method used
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Embodiment Construction
[0064] like figure 1 As shown in and as currently known, the drafting unit 1 of a prior art continuous spinning machine comprises three rows or pairs of rollers 2a, 2b, 2c, the base fiber bundle 3 is extended at each spinning position between the rollers. These pairs of rollers 2a, 2b, 2c rotate at different speeds and in the same direction of rotation, and they are usually linked to each other by a gear transmission system.
[0065] Only one base fiber tow 3 extends through the three pairs of rollers 2a, 2b, 2c, and for each spinning position, it produces an effect on the A drafting of the bundle 3 such that its mass per unit length is reduced until a preset limit for forming a simple yarn with a defined thickness is reached. At the exit of the last pair of rollers 2c, the fibers that have been drawn from the bundle 3 enter a twisting spindle (not shown).
[0066] The lower roller of each pair of rollers 2a, 2b, 2c is configured by a cylinder mounted on a shelf 4 which als...
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Method for spinning fancy yarns (16) comprising the steps of: a) injecting continuously a bundle (3) of base fibres to a drafting train (1) of said bundle (3) of base fibres, b) when said bundle (3) of base fibres is continuously injected, injecting intermittently a bundle (10) of effect fibres to said same drafting train (1) to add intermittently said bundle (10) of effect fibres to said bundle (3) of base fibres, and each intermittent injection of effect fibres of step b) includes the steps of: bi) advancing a stretch of said bundle (10) of effect fibres to the drafting train (1) of said bundle (3) of base fibres, and bii) then, moving backwardly said stretch a preset length, said backward movement permitting the forced cutting or separation of a fragment of bundle (10) of effect fibres to be added to the bundle (3) of base fibres in said drafting train (1). The fancy yarn (16) manufactured by the method comprises a plurality of fragments of a bundle (10) of effect fibres added in a discontinuous way to a bundle (3) of base fibres. The formation of said fragments permits the fibres to be added as more compact groups to the bundle of base fibres, which enhances the effect of added fibres and also the quality of the obtained yarn.
Description
[0001] The present invention relates to a method and a machine for spinning fancy yarns. The invention also relates to a fancy yarn produced by said method comprising inserting fibers for adding effects between the base fibers of said yarn. Background of the invention [0002] It is known to produce fancy yarns by intermittently adding one of several effect fibers of different color or texture to a bundle of base fibers or yarns of base fibers. [0003] WO2011 / 018685 discloses a production method for fancy yarns in which base and effect fibers are drawn separately to obtain a preset thickness and then the different bundles are converged at a torsions spindle to form the yarn Wire. [0004] The fancy yarns produced by the method of said patent have the advantage that by adding fibers of different textures or colours, a desirable contrasting effect is obtained. However, this contrast effect can be enhanced by applying methods such as those disclosed in CN1336453, US-A-2069446 ...
Claims
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IPC IPC(8): D02G3/34D01H5/36
CPCD01H5/36D02G3/34
Inventor J·C·鲍里奥卡斯特罗
Owner PINTER KG