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Article: German Inventors Develop Perforated Nonwoven Material Manufacturing Device

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US Fed News Service, Including US State News
Article date:
June 24, 2008
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ALEXANDRIA, Va., June 24 -- Mathias Muth of Wiesbaden, Germany, Axel Richter of Edemissen, Germany, and Ralf Sodemann of Peine, Germany, have developed a perforated nonwoven material manufacturing device.

According to the U.S. Patent & Trademark Office: "The present invention relates to perforation device for the manufacture of a perforated nonwoven material, whereby a prebonded nonwoven with embossing points is guided to a nonwoven perforation device, needles of a needle roller engage into the prebonded nonwoven and perforate it, and the perforated nonwoven material then undergoes further processing. A ratio is set between the number of needles to the number of embossed points of ...

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