Wound product cores and processes for making them

Details Wound product cores and processes for making them Wound product cores and processes for making them

Filed on

1997-04-30

Date issued

2000-11-14

Examiner

Chin, Peter

Patent Class

Paper making and fiber liberation

SubClass

Processes and products

SubSubClass

Reclamation, salvage or reuse of materials

Other Related Categories

162218, 162227, 162DIG9, D21F 1300

Type

Patent

Status

active

Patent number

061464988

Description

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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patent: 5795377 (1998-08-01), Tanner et al.

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