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Oerlikon displayed new tape extrusion at Techtextil expo

11 May '15

2 min read

The Manmade Fibers Segment of the Swiss Oerlikon Group has presented its latest development for tape production, EvoTape and WinTape, at this year’s Techtextil, which was held recently in Frankfurt.

Extruded tapes are used in carpet backing fabrics, textile packaging via agricultural textiles and in geotextiles.

Traditionally, Oerlikon Barmag extrusion systems are high-end with regards to the quality of the systems, the process and the yarn. To this end, the focus during the development of a new systems concept for tapes was on production costs and energy consumption, a company release said.

With the EvoTape, a process for manufacturing tapes has been developed that has literally revolutionized the process used to date: depending on the configuration, the systems output can be increased by up to threefold. The EvoTape operates with a cold pre-drawing process with an approx. 1:3 ratio. In the subsequent, second drawing stage, the tapes are ‘lighter’; they take on the heat from the hot-air oven more easily. These two drawing stages result in superior process stability, reaching the same tenacity values with higher speeds or superior properties at the same speed.

The EvoTape concept provides superior process stability which reduces tape breakages compared to conventional processes. Furthermore, the lower temperature transfer – for example during hot-air drawing – simplifies additional string-up of torn tapes.

The automatic WinTape precision winder have electronic crossing angles that ensures perfect package build with optimum quality for the downstream further processing. As the tapes dwell in the yarn guide during package transfer, automatic take-up of folded tapes is possible.

Operating the WinTape in conjunction with the EvoTape systems helps reducing production waste occurring during package transfer.

The considerably superior productivity of the new EvoTape system in conjunction with the WinTape take-up unit provides yarn producers with a significant expansion in capacity without substantial additional space requirements.

The EvoTape process also showcases its advantages for geotextiles and agricultural textiles. Here, high tenacities are achieved with lower overall draw ratios as well. (GK)

Fibre2fashion News Desk - India