FIELD: process engineering.
SUBSTANCE: invention relates to bulky nonwoven material used for cleaning and to its fabrication. Nonwoven bulky material (10) comprises first side (11), second side (12) opposite the latter, multiple macroscopic recessed ridges (21) and ledge (30) on at least first side (11). First recessed ridge (21) extends in first direction with reset interval. Ledge (30) is arranged between first recessed abutting ridges (21). Ledge (30) extends from second side (12) to first side (11) of bulky material (10).
EFFECT: material is suitable for efficient catching of coarse dust particles.
12 cl, 12 dwg, 1 tbl
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