Multilayer fabrics

Details Multilayer fabrics Multilayer fabrics

1992-11-19

1994-01-11

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

28107, 139383A, 162900, 428212, 428225, 428300, B32B 502

Patent

active

052779670

ABSTRACT:
A base fabric for press felts and a press felt incorporating that base fabric which includes an assembly of three or more separately woven fabric layers. Each of the woven fabric layers making up the base fabric assembly is a single or multilayer fabric, and they may be of the same or different weave patterns. The three or more fabric layers are assembled, one above the other and needled together with at least one batt layer on the papermaking surface of the felt. Preferably, the yarns on the top surface of the top fabric will, by virtue of the weave of the fabric, have long floats in the machine and/or cross machine direction to provide good paper web support. The bottom and intermediate fabric layers may also have long cross machine direction floats on their top surfaces to support the fabric or fabrics above. In a preferred embodiment, the yarns making up the top fabric layer will be relatively finer than those making up the intermediate layer and similarly, the yarns making up the intermediate layer will be relatively finer than those making up the bottom fabric layer.

REFERENCES:
patent: 4425392 (1984-01-01), Oikawa et al.
patent: 4503113 (1985-03-01), Smart
patent: 4564985 (1986-01-01), Tanabe

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