Multi-ply filter lasminate/composite for manufacturing vacuum cl

Details Multi-ply filter lasminate/composite for manufacturing vacuum cl Multi-ply filter lasminate/composite for manufacturing vacuum cl

1993-07-21

1995-08-01

Sluby, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Edge feature

428191, 428 352, 428212, 428220, 428236, 428248, 4283099, 4283115, 4283177, 4285375, 210491, 55381, 55382, B01D 3918, B32B 2302

Patent

active

054379105

ABSTRACT:
There is provided a multi-ply filter laminate/composite for manufacturing vacuum cleaner filter bags comprising at least one ply of filter paper and at least one ply of fine fiber web, wherein at least one ply of fine fiber web does not cover the whole width of the ply of filter paper bonded to it and thus there are formed one or two edge strip blanks on at least one ply of filter paper.

REFERENCES:
patent: 3559381 (1971-02-01), Fesco
patent: 3859064 (1975-01-01), Cordell

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