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THE PREPARATION OF SURFACE RETICULATED POLYURETHANE FOAM ROLL

IP.com Disclosure Number: IPCOM000024340D
Original Publication Date: 1980-Jun-30
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 77K

Publishing Venue

Xerox Disclosure Journal

Abstract

It is known to make foam rolls from various materials, such as polyether foam or polyurethane foam for various purposes, for example, as a cleaning device in electrostatographic copying machines. Foam rolls are sometimes used to remove liquid or solid particles from a surface to be cleaned, for example, the cleaning of toner particles from photoreceptor surfaces. The commerically available foam material generally presents a surface which has a mixture of open cellular structures and closed cellular structures. The closed cells generally have a thin membrane substantially covering the top of the cell, which then serves to trap the particles to be cleaned away. If such a foam material is used as a cleaning member, the trapped liquid or solid materials may deposit a film or other contamination on the surface to be cleaned to thus hinder the cleaning process. The normal regenerating means to remove dirt or other particles from the cleaning device, for example, by vacuum or a cleaning airstream, is not completely effective in removing trapped particles from such a partially closed cellular structure.

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XEROX DISCLOSURE JOURNAL

THE PREPARATION OF SURFACE RETICULATED POLYURETHANE FOAM ROLL
Jack C. Azar
Milan S. Zeman

Proposed Classification
U.S. C1. 29/121 Int. C1. AOlb 29/00

It is known to make foam rolls from various materials, such as polyether foam or polyurethane foam for various purposes, for example, as a cleaning device in electrostatographic copying machines. Foam rolls are sometimes used to remove liquid or solid particles from a surface to be cleaned, for example, the cleaning of toner particles from photoreceptor surfaces. The commerically available foam material generally presents a surface which has a mixture of open cellular structures and closed cellular structures. The closed cells generally have a thin membrane substantially covering the top of the cell, which then serves to trap the particles to be cleaned away. If such a foam material is used as a cleaning member, the trapped liquid or solid materials may deposit a film or other contamination on the surface to be cleaned to thus hinder the cleaning process. The normal regenerating means to remove dirt or other particles from the cleaning device, for example, by vacuum or a cleaning airstream, is not completely effective in removing trapped particles from such a partially closed cellular structure.

The present invention provides a method for producing a reticulated foam surface by subjecting the surface of a foam product to the action of the laser beam. For example, a carbon dioxide laser was m...