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Abstract

Washing system (1) suitable for continuous processing, for the pre-treatment of keratinaceous material, preferably feathers, hair or wool. The washing system (1) comprises an infeed device (2) for feeding the keratinaceous material to the washing system (1) and a washing space (3) for washing the keratinaceous material with an aqueous washing liquid. A washing liquid system for supplying and extracting the washing liquid to and from the washing space (3) is comprised in the washing system (1). The washing space (3) comprises a sinking zone wherein material with a higher density than the washing fiquid sinks below the keratinaccous material. An extracting system (8) is placed at the bottom of the sinking zone (6) for extracting the material with a higher density than the washing liquid. Furthermore, at least one washing structure (4) that sloshes the washing liquid and/or causes turbulence in the washing liquid is present in the washing space (3). Finally, an outfeed device (9) is provided for extracting the keratinaceous material from the washing system (1).

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