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dref spinning machine

The fibers are twisted using friction rollers or cages; suitable for special technical yarns.Friction spinning or DREF spinning is a textile technology that is suitable for spinning coarse counts of yarns and technical core-wrapped yarns. DREF yarns are bulky with low tensile strength, making them suitable for blankets and mop yarns. They can be spun from asbestos, carbon fibres and are capable of being made into filters for water systems.[clarification needed] Yarns such as Rayon and Kevlar can be spun using this method. The technology was developed around 1975 by Dr. Ernst Fehrer.
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Text source https://en.wikipedia.org/wiki/DREF_friction_spinning

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Táto fáza projektu Knižnica lokálnych textilných materiálov bola podporená Fondom na podporu umenia.
This phase of the project Library of Local Textile Materials was supported by the Slovak Arts Council.

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