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Method and apparatus for fibrillating synthetic ribbons

A technology for fibrillating rollers and ribbons, applied in fiber processing, textiles and papermaking, filament/thread forming, etc., can solve the problems of ribbon strength loss, untidy tearing edges, etc., and achieve the effect of precise guidance

Inactive Publication Date: 2013-01-16
OERLIKON TEXTILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such multilayered ribbons, it has also been found that untidy tear edges form, which lead to a considerable loss of strength of the ribbon.

Method used

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  • Method and apparatus for fibrillating synthetic ribbons
  • Method and apparatus for fibrillating synthetic ribbons
  • Method and apparatus for fibrillating synthetic ribbons

Examples

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Embodiment Construction

[0033] exist Figures 1 to 3 An embodiment of a device according to the invention for carrying out the method according to the invention for fibrillating a bundle of ribbons in an extrusion process is schematically shown in . Said example is in figure 1 In general view, in figure 2 in a partial view from the side in the fibrillated region and in the image 3 Shown in partial view in top view. The description that follows applies to all figures, as long as no figure is explicitly referenced.

[0034] exist figure 1 An embodiment of the device according to the invention is shown in a general view in . The exemplary embodiment has an extrusion device 1 to produce a film from a thermoplastic material. In this exemplary embodiment the extrusion device 1 has an extruder 2 . The extruder 2 is connected to an extrusion head 3 which extrudes a flat film 22 from the thermoplastic material melted by the extruder 2 .

[0035] It should be mentioned here that the extrusion device ...

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Abstract

The invention relates to a method and apparatus for fibrillating synthetic ribbons in an extrusion process for the production of glass fibres in particular. The extrusion process creates a sheet of ribbons from an extruded foil or a multiplicity of extruded monofils, and stretches them conjointly. The ribbons are led side by side in a parallel arrangement along the circumference of a fibrillating roll with a partial wrap. To produce a pattern of fibrillation irrespective of the thickness of the ribbons and the elasticity of the ribbons, the invention provides that a multiplicity of short partial cuts are made in the ribbons by a plurality of successively engaging rows of blades on the fibrillating roll each having a multiplicity of projecting cutting tips.

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 for fibrillating synthetic ribbons during extrusion and a device for carrying out said method according to the preamble of claim 7 . Background technique [0002] Such methods and devices for fibrillating synthetic ribbons or synthetic films which are first extruded from thermoplastic materials are widely known and are used for structuring ribbons or films. This makes it possible in particular to form smooth surfaces of ribbons or films with structures realized in the longitudinal direction. Such a method and such a device are known, for example, from EP0003490. [0003] In the known method and the known device, a film is extruded from a thermoplastic material and cut into a plurality of ribbons during the extrusion process. The ribbons are fibrillated after stretching. [0004] The fibrillation is usually carried out by means of needle rollers, which are known, for example, from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/42B26D1/28B26F1/20D01G19/10
CPCB26F1/20D01G19/105D01D5/423B26D1/285
Inventor J・魏因霍尔德B・沃尔纳M・诺伊伯特U・希尔施
Owner OERLIKON TEXTILE GMBH & CO KG
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