FIELD: technological processes.
SUBSTANCE: invention relates to a method for manufacturing a variable crimped web material, which includes feeding substantially continuous web material; crimping a first region of the web material at a first crimp value; and crimping a second region of the web material, adjacent the first region, at a second crimp value; the web material being crimped using a set of two rollers, each roller being corrugated across at least a portion of its width and corrugated around its circumference, the rollers being configured such that the corrugations across the width of the rollers interleave with each other to crimp the web material, and such that the troughs of the corrugations around the circumference crimp the web material at the first crimp value, and the peaks of the corrugations around the circumference crimp the web material at the second crimp value.
EFFECT: technical result is enabling the manufacture of a variable crimped web material along its entire length in one operation.
15 cl, 3 dwg
