Needling process for spundbonded composites

Details Needling process for spundbonded composites Needling process for spundbonded composites

1988-12-01

1990-06-19

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

28111, 28112, 156148, 428287, 428296, 428300, B32B 506, B32B 3116

Patent

active

049352954

ABSTRACT:
A process is disclosed for manufacturing a high strength composite structure by needling individual webs of initially spunbonded material and then needle-punching a stack of the individual webs to enmesh and entangle filaments across the webs, with little or no loss of the initial filament-related strength.

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patent: 4617219 (1986-10-01), Schupack
patent: 4647497 (1987-03-01), Weeks
Radko Krcma, Nonwoven Textiles, 1967, pp. 139-149.

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