POLYURETHANE FOAM FOR TONER SUPPLY ROLL

PROBLEM TO BE SOLVED: To provide a polyurethane foam for toner supply roll that improves toner scraping property and supply property and suppress the occurrence of image density difference when printed. SOLUTION: The polyurethane foam for toner supply roll is used to supply toner to a photoreceptor...

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Bibliographische Detailangaben
1. Verfasser:	MURAMATSU SUSUMU
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING CINEMATOGRAPHY ELECTROGRAPHY ELECTROPHOTOGRAPHY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOLOGRAPHY LIGHTING MAGNETOGRAPHY MECHANICAL ENGINEERING PHOTOGRAPHY PHYSICS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a polyurethane foam for toner supply roll that improves toner scraping property and supply property and suppress the occurrence of image density difference when printed. SOLUTION: The polyurethane foam for toner supply roll is used to supply toner to a photoreceptor in a developing part of an image forming apparatus and is formed of a polyurethane foam material containing polyol, polyisocyanate, a foaming agent and a catalyst. The polyol contains at least polymer polyol, and the average number of cells of the foam based on JIS K6400 is 50-80 per 25 mm, and the rebound resilience of the foam based on JIS K6400 is preferably 30-60%. COPYRIGHT: (C)2009,JPO&INPIT