A method for separating bristle bundles (5) from a supply (10) of loose bristle filaments (11) is provided, in which a bundle separator (13) having a separating notch (14) is moved in a separating movement past the supply (10) of loose bristle filaments (11), in the process separating a bristle bundle (5) from the supply (10) which makes its way into the separating notch (14). When the separating movement is carried out, the separating notch (14) changes its direction of movement in a separating region (16) on the supply (10) at least twice, preferably at least thrice.

Fibrous cleaning material and roller compositions for floor cleaners are provided. The fibrous cleaning material can include a plurality of unit fiber sections. Each unit fiber section in the plurality of unit fiber sections can include a first fine fiber material having a fineness of less than about 1 denier, a second fine fiber material having a fineness of between about 1 and 10 denier, a first bristle material having a fineness of between about 10 and 50 denier, and a second bristle material having a fineness of greater than about 100 denier. A bristle lay of the unit fiber section and a small fiber lay of the unit fiber section can be skew relative to each other.

A separating device (1) for separating bundles of bristles from a store (2) of loose bristle filaments (3). The separating device has a material box (4) for receiving the store of loose bristle filaments (3), a bundle separator (5) having at least one separating notch (6), and at least one counter piece (7). The bundle separator (5) is movable with the at least one separating notch (6) through a separating region (8) at the material box (4) in order to separate bundles of bristles, and the at least one separating notch (6) is movable with the bundle separator (5) along the counter piece (7) into a bundle delivery position (33). The bundle separator (5) has, on its front side (11) facing the counter piece (7), a profile (12) with which the bundle separator (5) overlaps the counter piece (7) when the separating notch (6) is at the counter piece (7).

A separating device (1) for separating bundles of bristles from a store (2) of loose bristle filaments (3). The separating device has a material box (4) for receiving the store of loose bristle filaments (3), a bundle separator (5) having at least one separating notch (6), and at least one counter piece (7). The bundle separator (5) is movable with the at least one separating notch (6) through a separating region (8) at the material box (4) in order to separate bundles of bristles, and the at least one separating notch (6) is movable with the bundle separator (5) along the counter piece (7) into a bundle delivery position (33). The bundle separator (5) has, on its front side (11) facing the counter piece (7), a profile (12) with which the bundle separator (5) overlaps the counter piece (7) when the separating notch (6) is at the counter piece (7).