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CUSTOMIZING SHAPE OF WEB COATING LEADER

IP.com Disclosure Number: IPCOM000027362D
Original Publication Date: 1996-Jun-30
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 56K

Publishing Venue

Xerox Disclosure Journal

Abstract

Batch web film coatings from solution of, for example, belted photoreceptors, can produce edge effects which often yield increased layer thickness. Subsequent core winding of the web can induce severe web strain andor misalignments which can induce web damage. A sacrificial leader material remaining in a web coater between batches or nm could be edge shaped to control the edge support upon winding to compensate for web edge thickness perturbations thereby eliminating potential damage.

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XEROX DISCLOSURE JOURNAL

CUSTOMIZING SHAPE OF WEB COATING

LEADER U. S. C1.355/2 12 Russell N. Gillmeister

Proposed Classification

Int. C1. G03g 05/00

Batch web film coatings from solution of, for example, belted photoreceptors, can produce edge effects which often yield increased layer thickness. Subsequent core winding of the web can induce severe web strain andor misalignments which can induce web damage. A sacrificial leader material remaining in a web coater between batches or nm could be edge shaped to control the edge support upon winding to compensate for web edge thickness perturbations thereby eliminating potential damage.

Web leader remaining in a coater between batches is wound on the core under the coated web stock. If the leader is narrower than the finished web material, there is a sufficient gap between the core and initial winding to allow a thicker edge to move toward the core. If the degree of edge perturbation is known, a properly shaped leader could provide support while at the same time eliminate subsequent winding stress. This provides support to prevent delamination type defects and creasing caused by winding stress. This also allows windings of lower tension which also reduce web defects.

An additional advantage of this system is that it does not require any additional time or manpower once implemented.

XEROX DISCLOSURE JOURNAL - Vol. 2 1, No. 3 May/June 1996 215

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