Brush and device for applying substance to keratinous fibers, and method and machine for manufacturing brush

A method of manufacturing a brush for applying a substance to keratinous fibers, the method comprising:

• providing an initial brush comprising
• a twisted core defining turns, and
• bristles extending from the twisted core, the bristles being clamped between
• the turns of the twisted core;
• and
• relatively displacing at least one treatment member and the bristles of the initial brush with respect to one another such that the at least one treatment member strikes at least some of the bristles and changes, in a substantially permanent manner, the orientations of at least a portion of at least some of the bristles so as to form at least two deformed bristles clamped between two adjacent turns of the twisted core, each of the at least two deformed bristles having a length,
• wherein at at least one point along the length each of the at least two deformed bristles comprises either
• removal of material at the at least one point,
• stretching of material at the at least one point, or
• flattening at the at least one point, and
• wherein each of the at least two deformed bristles extends outward from the at least one point in a non-radial manner with respect to the twisted core.

A method of manufacturing a brush for applying a substance to keratinous fibers, the method comprising:

• providing an initial brush comprising
• a core, and
• bristles extending from the core;
• and
• relatively displacing at least one treatment member and the bristles of the initial brush with respect to one another such that the at least one treatment member strikes at least some of the bristles and changes, in a substantially permanent manner, the orientations of at least a portion of at least some of the bristles so as to form at least two deformed bristles, each of the at least two deformed bristles having a length,
• wherein at at least one point along the length each of the at least two deformed bristles comprises either
• removal of material at the at least one point,
• stretching of material at the at least one point, or
• flattening at the at least one point, and
• wherein each of the at least two deformed bristles extends outward from the at least one point in a non-radial manner with respect to the core.