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Process and device for manufacturing a composite strand

A technology of manufacturing device and manufacturing method, which is applied in the field of composite yarn manufacturing, can solve problems such as limited shrinkage rate, influence on bobbin unwinding, bobbin does not have geometric characteristics, etc., and achieves the effect of uniform distribution and sufficient

Inactive Publication Date: 2009-04-29
OCV INTELLECTUAL CAPITAL LLC
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] [05] The shrinkage phenomenon has several disadvantages: it requires that a thick bobbin must be used to make the bobbin so that it can withstand the wrapping force exerted by the composite yarn, and since the bobbin does not have the proper required ideal geometrical characteristics, so this shrinkage phenomenon affects the release of wire from the bobbin
[0013] [13] These conditions are limited to thermoplastic materials with limited shrinkage

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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  • Process and device for manufacturing a composite strand
  • Process and device for manufacturing a composite strand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0081] [81] at figure 2 Composite filaments were manufactured on the equipment shown under the following conditions:

[0082] [82] - Thermoplastic filaments

[0083] [83] - Thermoplastic material: Polyamide (PA)

[0084] [84] - Number of filaments: 1200 filaments

[0085] [85] - Linear density: 466 tex

[0086] [86] - Flow rate of device 8: 400 m3 / h

[0087] [87] - Speed ​​of wire drawing machine: 1800 m / min; temperature of rollers 12, 13: 180°C; melting phase drawing rate: 3640

[0088] [88] - Air temperature in Venturi device 16: 200°C

[0089] [89] - Rotational speed of drum 17: 1008 m / min; water spray cooling

[0090] [90] - Curl rate: 10%

[0091] [91] The crimp ratio is measured according to the formula 100×(L-Lo) / Lo, where Lo is the length of a crimped filament and L is the length of the same filament sufficient to make it linear after drawing length.

[0092] [92] - glass filament

[0093] [93] - Number of filaments: 1600

[0094] [94]-Composite yarn

[00...

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Abstract

The invention relates to a process and a device for manufacturing a composite strand formed by combining continuous glass filaments with continuous high-shrinkage organic thermoplastic filaments. According to the invention, the thermoplastic filaments are mingled in the form of a web (10) with a bundle or a web (2) of glass filaments after having been drawn, and are heated and then projected onto a moving support (17) with a speed, during their projection onto the support, greater than the running speed of said support. It also relates to a suitable device for carrying out the aforementioned process.

Description

technical field [0001] [01] The present invention relates to methods and apparatus for the manufacture of composite filaments formed from the combination of a plurality of continuous glass filaments and high shrinkage continuous thermoplastic organic material filaments. Background technique [0002] [02] The manufacture of composite yarns is proposed in particular in EP-A-0367661, the method proposed using a first device and a second device, the first device having a drawing die (filière) with molten glass, the glass length The filaments are drawn from a drawing die and the second apparatus has a drawing head supplied to deliver continuous filaments of thermoplastic organic material under pressure. [0003] [03] The two types of filaments are combined into at least one composite filament, and when combined, the filaments may be in the form of a ply or a ply and a filament. In composite filaments, glass filaments or filaments are surrounded by thermoplastic filaments that pr...

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): C03B37/00D01D5/08D01D10/02
CPCD01D5/08D01D10/02C03B37/00
Inventor D·卢比努B·加斯
Owner OCV INTELLECTUAL CAPITAL LLC
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