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Roll Edge Marking Apparatus

IP.com Disclosure Number: IPCOM000167248D
Publication Date: 2008-Feb-04
Document File: 8 page(s) / 181K

Publishing Venue

The IP.com Prior Art Database

Related People

Gerald J. Kramer: INVENTOR [+2]

Related Documents

2-2007: OTHER

Abstract

The invention uses a substantially solid material (i.e. not liquid and/or not gaseous forms) such as crayon (a stick of colored wax, charcoal, chalk, grease pencil, or the like) applied to the edges of spinning rolls of material, such as paper or tissue webs, to indicate breaks and or defects in the wound material. The edge marks indicate the location of web defects and/or discontinuities which is intended to be used for the next operation, whether acted upon by human or other, such as robotic, means.

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Roll Edge Marking Apparatus

Name(s) of Inventor(s)

Gerald J. Kramer

Zachary S. Fillbach

Abstract of Invention

The invention uses a substantially solid material (i.e. not liquid and/or not gaseous forms) such as crayon (a stick of colored wax, charcoal, chalk, grease pencil, or the like) applied to the edges of spinning rolls of material, such as paper or tissue webs, to indicate breaks and or defects in the wound material. The edge marks indicate the location of web defects and/or discontinuities which is intended to be used for the next operation, whether acted upon by human or other, such as robotic, means.

Significance of Invention

This invention provides a way for the dry marking material to be applied to the spinning roll by mechanical components, improving operator safety. An enhancement to this invention is applying wet marking materials, such as dyes or paints, to the wound roll, eliminating the weakness issues cause by applying it to a single ply of web material before it is wound onto a roll.

Present marking systems spray paint or dye, in substantially liquid form, on the edge of a single web as it passes by the application device. In most cases, the web is moving in a straight line; however, it is possible the web could be moving in an arc path if the wet spray was directed at the web as the web was moving passed a roll, stabilizer or other similar rounded device.

Wet dyes and similar materials work well on webs with enough wet-strength to prevent them from breaking as or after the marking material is applied. Some low wet-strength tissue grades tend to break when liquid material is applied, making this method of edge marking a single ply of web unacceptable.

To avoid the wet marking material, personnel have historically used a crayon, chalk or similar material, physically moved close to the spinning or winding roll of material, and pressed the dry/solid marking material against the edge or side of the spinning roll to apply it. Moving a person into close proximity of a rotating object can pose risks of physical injury, including but not limited to cuts and abrasions on the hand, to loss of limb or life.

 


PRIOR ART:

1.       RYECO Models 2111-3c and 2131-3c Edge Marking Systems with Manual Positioning

2.       RYECO Models 3111-3c and 3131-3c Edge Marking Systems with Manual Positioning

3.       RYECO Models 3131-3g/NJ and 3161-3g/NJ Edge Marking System Tissue Defect

4.       Possibly (WO/2005/106104) Apparatus And Method For The Automated Marking Of Defects On Webs Of Material

5.       Others Unknown

I.          Background and Problem

Present marking systems spray paint or dye, in substantially liquid form, on the edge of a single web as it passes by the application device. In most cases, the web is moving in a straight line; however, it is possible the web could be moving in an arc path if the wet spray was directed a...