Abstract: There is disclosed a material or fabric making or processing operation involving needle penetration of a fiber, fabric or material layer (12) in which the needle penetration action is controlled by control means (18) by which the needle penetration characteristics can be varied within the penetration action and as between penetration actions.
Abstract: There is disclosed a material or fabric making or processing operation involving needle penetration of a fibre, fabric or material layer (12) in which the needle penetration action is controlled by control means (18) by which the needle penetration characteristics can be varied within the penetration action and as between penetration actions.