Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1984-10-30
1986-12-30
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
1563082, 1563084, 428288, 428296, B32B 3126, D04H 148
Patent
active
046328580
ABSTRACT:
The filler fleece material of the invention consists of a laminate of two layers of fleece containing bonding fibers. The thinner layer, which serves as a covering fleece, consists to at least 60% of thermoplastic bonding fibers which melt at the same or a lower temperature than those of the central fleece. This combination makes it possible, after the depositing of the fiber layers and the thermal consolidation of the central fleece, to perform a process for smoothing the cover layer, in which the laminate is exposed in a roller gap to a temperature that is above the fiber melting point of the cover fleece. The filler fleece material of the invention, on account of its smooth yet still sufficiently air-permeable cover layer, is no longer subject to fiber protrusion. Furthermore, the clinging of projecting fibers during application to textile surface materials is reliably prevented.
REFERENCES:
patent: 4129675 (1978-12-01), Scott
patent: 4508113 (1985-04-01), Maloney
Dekant Ludwig
Groitzsch Dieter
Jager Helmut
Knoke Jurgen
Cannon James C.
Firma Carl Freudenberg
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