Wound product cores and processes for making them
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United States of America Patent
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-
Nov 14, 2000
Grant Date -
N/A
app pub date -
Apr 30, 1997
filing date -
Apr 30, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a core for receiving a wound product wherein the core is made of a waste sludge produced in a papermaking process. The process for making the core includes the steps of mixing the sludge with a binder material, which may be either a wet strength or a dry strength agent, and then compressing the mixture into a core through a process such as extrusion or molding. Optionally, the sludge may be dried prior to mixing with the binder material.
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