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Multiend package of multifilament polyester bicomponent yarn

a polyester bicomponent, multi-end technology, applied in the direction of transportation and packaging, manufacturing tools, other domestic articles, etc., can solve the problems of multi-end package production in which the yarns are produced

Inactive Publication Date: 2011-06-09
INVISTA NORTH AMERICA R L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0051]The features and advantages of the present invention are more fully shown by the following examples which are provided for purposes of illustration, and are not to be construed as limiting the invention in any way.

Problems solved by technology

However, the technical challenges of producing a multiend package in which the yarns are consistently separable upon unwinding are considerable, particularly for bicomponent continuous filament yarns which have crimp and stretch and recovery properties.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Multiend package of multifilament polyester bicomponent yarn
  • Multiend package of multifilament polyester bicomponent yarn
  • Multiend package of multifilament polyester bicomponent yarn

Examples

Experimental program
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Effect test

example 1

Multiend Package of 2 Threadlines of 55 dtex and 34 Filaments

[0052]In order to prepare a multiend package of two threadlines each of 55 dtex and 34 filaments, each threadline with 68 filaments is prepared from a single spinneret and separated into two threadlines with 34 filaments each. Then, each threadline has 34 filaments. For a yarn spinning apparatus with six spinnerets, the six threadlines become twelve threadlines at one spinning position.

[0053]Each threadline (12 total with 34 filaments each) has its own yarn path on rolls and all facilities. All 12 threadlines are independent. After passing through the interlace jet, 2 threadlines converge into one threadline by a convergent guide, then this converged threadline is wound to one yarn package by take up winder. This provides six multiend packages with each having two ends from threadlines having 55 dtex and 34 filaments each.

example 2

Multiend Package of 2 Threadlines of 27 dtex and 17 Filaments

[0054]In order to prepare a multiend package of two threadlines each of 27 dtex and 17 filaments, each threadline with 34 filaments is prepared from a single spinneret and separated into two threadlines with 17 filaments each. Then, each threadline has 17 filaments. For a yarn spinning apparatus with six spinnerets, the six threadlines become twelve threadlines at one spinning position.

[0055]Each threadline (12 total with 17 filaments each) has its own yarn path on rolls and all facilities. All 12 threadlines are independent. After passing through the interlace jet, 2 threadlines converge into one threadline by a convergent guide, then this converged threadline is wound to one yarn package by take up winder. This provides six multiend packages with each having two ends from threadlines having 27 dtex and 17 filaments each.

example 3

Multi-End Package for Core Spinning

[0056]FIG. 3 shows a multiend package 28c for core spinning process. The yarn is driven by two delivery rollers 38 so that the two multicomponent yarns 16a and 16b from multiend package 28c are separated and unwound tangentially to the roller guides 30 which direct the separated multicomponent yarn 16a and 16b to its corresponding front roller 35 of spinning position where the polyester multiple component yarns are combined with the staple roving fiber 2 to provide separate core-spun yarn packages 4.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

Included are multiend packages of multicomponent yarns, where the yarn is separable into individual ends upon unwinding. The multicomponent yarn may be a bicomponent yarn, such as a yarn including compositionally different polyesters in a side-by-side or eccentric sheath-core configuration. Uses of such multiend packages are also included.

Description

FIELD OF THE INVENTION[0001]This invention relates to a multiend package of multicomponent yarns, the yarn being separable into individual ends upon unwinding. More specifically, this invention relates to a multiend package of polyester bicomponent continuous filament yarns, and the separable yarns on such a package. The invention also relates to a method of making the multiend package of separable polyester bicomponent continuous filament yarns.BACKGROUND OF THE INVENTION[0002]Typically, filament yarn production involves extruding multiple filaments from a spinneret, then either combining all the filaments into a single threadline which is then wound onto a single package, or dividing the filaments into multiple filament threadlines which are then each wound onto single packages. In either case, one multicomponent threadline is wound onto one package. This is also known as having one “end” per package.[0003]Polyester bicomponent filaments are elastomeric filaments which have stretc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D02G3/04D02H1/00D02G1/20B65H55/00
CPCB65H51/015B65H54/026B65H55/005D02G3/362D01F8/14D02G3/36B65H2701/3132D01D5/32D01D5/34D02G3/00
Inventor LEE, KAH LEAPNGUYEN, YOUNG D.LEUNG, RAYMOND S.P.WU, PAUL
Owner INVISTA NORTH AMERICA R L
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