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Air spinning method for the production of large yarns with count lower than ne20 and relative yarn

A technology of air spinning and yarn, which is applied in the direction of continuous winding spinning machine, spinning machine, textile and paper making

Active Publication Date: 2020-06-09
SAVIO MACCHINE TESSILI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] On the contrary, it has been proven that in the case of air spinning, this solution does not always give the best compromise between the strength and quality of the yarn thus obtained

Method used

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  • Air spinning method for the production of large yarns with count lower than ne20 and relative yarn
  • Air spinning method for the production of large yarns with count lower than ne20 and relative yarn
  • Air spinning method for the production of large yarns with count lower than ne20 and relative yarn

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Embodiment Construction

[0026] With reference to the preceding figures, reference numeral 4 designates a yarn, in particular a yarn obtained by air spinning, preferably with multiple feeds.

[0027] The invention is especially suitable for applications where man-made / synthetic fibers and fibers that may be blended with cotton are not 100% cotton.

[0028] The yarn 4 comprises a plurality of filaments 8 each comprising a plurality of fibers 12 .

[0029] An analysis of the cross-section of the thread 8 reveals a plurality of fibers 12 which can be divided into outer fibers 16 and inner fibers 20 .

[0030] The inner fibers 20 constitute the core of the thread 8 and are in turn surrounded by the outer fibers 16 .

[0031] Preferably, the invention provides a method for obtaining a yarn 4 whose total number of fibers 12 is below a maximum value, preferably equal to 200.

[0032] Preferably, it has been found useful to use thicker fibers as the yarn count decreases, so that the total number of fibers 1...

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Abstract

An air spinning method and relative yarns are discloses, the air spinning method comprising the steps of: preparing at least one web of textile fibers (N1), to be fed by at least one introducer element (24) upstream of an air spinning device (28), drawing said at least one web (N1) with at least one drawing device (32), feeding said web (N1), previously drawn, in a spinning chamber (36) of the airspinning device (28), spinning the fibers (12) inside the spinning chamber (36) by means of compressed air jets, so as to: obtaining a yarn (4) comprising internal fibers (20) surrounded by externalfibers (16), wherein the yarn (4) has an overall thread count lower than Ne20 and the total number of internal (20) and external (16) fibers is less than 200.

Description

technical field [0001] The present invention relates to an air spinning method for producing yarns with a count less than or equal to Ne 20 and greater than or equal to Ne 10, and related yarns obtained by said method. Background technique [0002] In particular, air-spinning of yarns with a count of less than Ne 20 is complicated, since the tenacity and regularity of the yarn tend to decrease dramatically when such low counts are produced. [0003] Yarns usually processed on air spinning machines are polyester (PES), viscose (and its Modal, Tencel variants, etc.), cotton and various blends. [0004] The prior art for the production of such yarns involves the use of high quality fiber webs with an average length of 38 mm for man-made fibers and a fiber diameter between 1.3 and 1.5 dtex and micronaire below 1.5 dtex for cotton fibres. 4.2. [0005] An empirical formula defines the following relationship: micronaire = 2.824 denier = 2.824*1.111 dtex; thus: dtex = micronaire / ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H4/02
CPCD01H4/02D02G3/00D01H1/11D02G1/168D02G3/36D02G3/22D01H1/115D02G3/38
Inventor 法比奥·达尼奥洛卢卡·德奥托
Owner SAVIO MACCHINE TESSILI