Browse Prior Art Database

Alumina Coating for Post Fuser Conditioner Roll

IP.com Disclosure Number: IPCOM000012304D
Publication Date: 2003-Apr-28
Document File: 1 page(s) / 11K

Publishing Venue

The IP.com Prior Art Database

Abstract

The conditioner roll transfers water to paper to reduce curling after fusing. Conditioner rolls are typically made from an aluminum roll that is chrome-plated and acid etched. Chrome plating is expensive and not environmentally friendly. Thus, developing an alternate technology would be advantageous. This concept may also be applied to other rollers needed to pick up liquids.

This text was extracted from a Microsoft Word document.
This is the abbreviated version, containing approximately 100% of the total text.

Alumina Coating for Post Fuser Conditioner Roll

The conditioner roll transfers water to paper to reduce curling after fusing.� Conditioner rolls are typically made from an aluminum roll that is chrome-plated and acid etched.� � Chrome plating is expensive and not environmentally friendly.� Thus, developing an alternate technology would be advantageous.� This concept may also be applied to other rollers needed to pick up liquids.

An alumina coating can replace the acid etched chrome.� Alumina (Al2O3) is an inert, low-cost ceramic that can easily be coated on aluminum rolls via thermal spray processes, such as plasma spray.� This manufacturing process does not produce hazardous wastes as chrome-plating does. Hence it is lower cost.� Because alumina is hydrophilic and has natural porosity, it is able to achieve the wettability/surface energy requirements of the conditioner roll.

In addition to alumina, other possible coatings include plasma sprayed chromium oxide.� Chrome oxide in an anilox design may also meet the functional requirements.� Anilox rolls are used in the printing industry.� They are chrome oxide rollers laser engraved to leave uniform sized “pockets” which hold a specified amount of fluid, which provides high precision control of the level of water picked up by the roller.