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Strong yarn with forming filaments

A yarn and filament technology, applied in the direction of filament/thread forming, single-component polyamide rayon, yarn, etc., can solve the problems that the coating is not easy to adhere, and the coating is not easy.

Inactive Publication Date: 2007-09-12
POLYAMIDE HIGH PERFORMANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, coating these fabrics is not easy because a coating usually does not readily adhere to the highly developed filaments of the yarn used

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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  • Strong yarn with forming filaments
  • Strong yarn with forming filaments
  • Strong yarn with forming filaments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will now be described in more detail through the following examples.

[0020] The polymer used to make the yarn is nylon 6,6 with a particle viscosity of 2.56 (255G). The pellets were melted at a temperature of 290°C and extruded through a spinneret with a diameter of 60 mm at a temperature of 280.5°C. Each of the 72 holes of the spinneret had three holes each having a length of 600 microns and a length of 70 microns. A rectangle with a width of micrometers (see Figure 1). The three rectangles are arranged in a star shape and connected to each other at the center of the hole. The extruded filaments were quenched in a quenching tunnel with cross-flow air of various speeds at a temperature of 22°C, and then wound at a speed of 450 m / min. The pressure set at the spinneret, the air velocity used and the properties of the yarn obtained are shown in Table 1.

[0021] Take 50 meters 3 The filament obtained by the air flow at speed per hour has a hexagonal cro...

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PUM

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Abstract

A yarn containing filaments made from synthetic polymers has a cross-section having at least 5 vertices, a titer of 1 to 7 dtex and a tenacity of at least 60 cN / tex. The filaments of the yarn preferably have a cross-section having 5 to 8 vertices, possibly with indentations between the vertices. The cross-section of the filaments is preferably star-shaped. The yarn preferably has a tenacity of 60 to 85 cN / tex, an elongation at break of 15% to 35%, a hot-air shrinkage of 4% to 10% and a stretch recovery of 250 to 400 cN / tex. The yarn is excellently suited for use in the manufacture of industrial fabrics, particularly airbag fabrics.

Description

Technical field [0001] The invention relates to a yarn comprising filaments made of a synthetic polymer having a cross section with at least 5 angles. Background technique [0002] This type of yarn is known in the manufacture of textiles and carpets. They are used to improve the appearance of textiles and carpets. When manufacturing, for example, woven fabrics, braids, knitted fabrics, and non-woven fabrics made of yarns containing synthetic polymer filaments, it is observed that the fabrics produced exhibit a gloss that is generally undesirable. Therefore, the filaments of these yarns usually contain matting agents. The gloss in textiles can be further reduced using yarns with shaped cross-sections. Therefore, in EP0605333, for example, a filament having a matting agent and having a multilobal cross-section including at least 5 blades is used to manufacture a carpet, and the filament in the finished carpet has good crimp stability and no gloss. The filament has a single fiber f...

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 Patents(China)
IPC IPC(8): D01D5/253B60R21/16D02G3/02B60R21/235D01F6/60
CPCD01D5/253B60R2021/23509D01F6/60Y10T428/2976Y10T428/2913Y10T428/2929Y10T428/2973Y10T442/30
Inventor R·克内F·莱曼B·康拉德G·贝尔贝里布H·A·格雷费A·图尔克肖峭
Owner POLYAMIDE HIGH PERFORMANCE
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