초록 ▼

Fiber cement felts of the present invention include: a top fabric layer that includes fine machine direction yarns and fine cross machine direction yarns interwoven with the fine machine direction yarns; a bottom fabric layer underlying the top fabric layer that includes coarse machine direction yar

Fiber cement felts of the present invention include: a top fabric layer that includes fine machine direction yarns and fine cross machine direction yarns interwoven with the fine machine direction yarns; a bottom fabric layer underlying the top fabric layer that includes coarse machine direction yarns and coarse cross machine direction yarns interwoven with the coarse machine direction yarns; and a batt layer attached to and overlying the top fabric layer. Preferably, the top fabric layer is heat bonded to the bottom fabric layer. It is also preferred that the fiber cement felt of the present invention include a second batt layer that underlies the bottom fabric layer. In this multiple layer structure, the felt can have higher tenacity, improved resistance to blinding and compaction, and a reduced tendency to mark a fiber cement sheet during its formation.

대표청구항 ▼

[ That which is claimed is:] [1.] A method of forming a fiber cement article, comprising the steps of:providing a fiber cement felt, said fiber cement felt comprising: a top fabric layer including fine machine direction yarns and fine cross machine direction yarns interwoven with said fine machine d

[ That which is claimed is:] [1.] A method of forming a fiber cement article, comprising the steps of:providing a fiber cement felt, said fiber cement felt comprising: a top fabric layer including fine machine direction yarns and fine cross machine direction yarns interwoven with said fine machine direction yarns;a bottom fabric layer underlying and attached to said top fabric layer and including coarse machine direction yarns and coarse cross machine direction yarns interwoven with said coarse machine direction yarns; anda batt layer attached to and overlying said top fabric layer;depositing a fiber cement slurry on said fiber cement felt; andremoving moisture from said slurry.