Hetero-composite yarn, fabrics thereof and methods of making

A yarn, heterogeneous technology, applied in the field of heterogeneous composite textile yarn

Inactive Publication Date: 2005-01-05
INVISTA TECHNOLOG IES S A R L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The yarns of the present invention meet this long-felt unmet need by providing yarns and articles thereof having the desired stretch and recovery properties, and also overcoming the problems of the prior art with loose, high-stretch dual Problems associated with component filament yarns

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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  • Hetero-composite yarn, fabrics thereof and methods of making
  • Hetero-composite yarn, fabrics thereof and methods of making
  • Hetero-composite yarn, fabrics thereof and methods of making

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0060] Methods of making the above polymers are known in the art and may include the use of catalysts, cocatalysts and chain branching agents known in the art.

[0061] The high elasticity of the core enables it to absorb compressive and tensile forces as the fibers are stretched and relaxed as the core is twisted by the wings to which it is attached. These forces can cause the two polymers to detach if their attachment is too weak. The present invention optionally uses a mechanical lock of the wing and core polymers to enhance this attachment and further minimize detachment during fiber processing and use. The bond between the core and wings can be further strengthened by choice of wing and core composition and / or use of adhesion-promoting additives to either or both of these polymers. Adhesion promoters can be used in each of these wings or in only some of them. Thus, individual wings can be laminated to the core to varying degrees, for example, some wings can be intention...

Embodiment 1

[0126] Air-entangled bicomponent composite yarns in knitted fabrics

[0127] An air-entangled heterogeneous composite-yarn with potential stretch and recovery properties was prepared by air-entanglement of a first monofilament bicomponent yarn of the present invention and a second commercially available partner yarn.

[0128] Bicomponent Yarn Spinning

[0129] the bicomponent yarn along the Figure 10 Route C was spun to produce filaments of 19 denier (21 dtex) per filament. Other fiber and spinning properties are as follows:

[0130] denier 19

[0131] #filament 1

[0132] Wing / Core Interfitting Yes

[0133] Feeding roller speed (m / min) 420

[0134] Initial Trim None

[0135] Initial trim % 0

[0136] Second Trim Type K-9349

[0137] Second trimming % 4%

[0138] Wing polymer Camacari N6 DuPont Brazil SA

[0139] Additives in Wing Polymer 5% Nylon 12 Rilson AMNA Atofina

[0140] Wing Volume % 40

[0141] Number of wings 5

[0142] Core polymer Pebax 3533SN (...

Embodiment 2

[0173] Air-jet texturized bicomponent composite yarns for knitting applications

[0174] The heterogeneous yarns according to the invention are prepared by air jet texturing a feed yarn consisting entirely (2.a.) or partly (2.b.) of bicomponent fibers with fancy yarns without bicomponent fibers. - Composite-yarn combination.

[0175] raw material

[0176] The polymer starting material was the same as shown in Example 1. In Example 2.a. a feed yarn consisting of 10 filament bicomponent yarns of 70 denier was spun as follows.

[0177] In Example 2.b., the feed yarn consisted of simultaneously fed 30 denier monofilament bicomponent and 70 denier 66 filament nylon Tactel * Industrial yarns (sold by E.I. DuPont deNemours and Co., Wilmington, Delaware) were assembled. The properties of the 30 denier bicomponent monofilament are shown below.

[0178] The decor thread used in Examples 2.a. and 2.b. was also 66 filament DuPont Tactel of 70 denier * .

[0179] Bicomponent Y...

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Abstract

A hetero-composite yarn useful in making garments comprises a combined biconstituent yarn and a companion yarn, wherein the biconstituent yarn comprises an axial core comprising a thermoplastic elastomeric polymer, and a plurality of wings attached to the core and comprising a thermoplastic, non-elastomeric polymer.

Description

technical field [0001] The present invention relates to heterogeneous composite (preferably self-bulking) textile yarns with high stretch recovery, which are composed of a high-shrinkage, latent stretch, melt-spun bicomponent fiber and one or more shrinkage Made of less durable fibers. Background technique [0002] Yarns with good bulk, stretch and recovery properties can be prepared by a number of methods including false twist texturing of inelastic or hard yarns, bicomponent yarns, wrapping a hard yarn over On an elastic yarn, air cover or wrap a hard yarn with an elastic yarn, and core spun staple fiber yarn cover on an elastic yarn. See, eg, US Patent No. 4,861,660 to Ishii. Prepared by adding one or more of these yarns to the fabric and / or by using an elastic yarn (such as spandex) which is added separately to the fabric making process Fabric with loft, stretch and recovery properties. [0003] Fabrics with good stretch and recovery properties g...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D02G1/16D01D5/253D01D5/30D01F8/04D01F8/06D01F8/12D01F8/14D01F8/16D02G1/18D02G3/04D02G3/32D02J1/22
CPCD01F8/16D02G1/18D01F8/04D01D5/30D01F8/14D01F8/12D01D5/253D01F8/06Y10T428/2973Y10T428/2913Y10T428/2931Y10T428/2924Y10T428/2929
Inventor 加勒特·丹尼尔·菲古伊马克·B.·戈德芬格拉凯什·H.·梅赫塔H.·沃恩·塞缪尔森安东尼·J.·索罗卡格雷戈里·P.·威克斯
Owner INVISTA TECHNOLOG IES S A R L
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