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Optically Detectable Splicing Tapes

IP.com Disclosure Number: IPCOM000238223D
Publication Date: 2014-Aug-11
Document File: 1 page(s) / 21K

Publishing Venue

The IP.com Prior Art Database

Abstract

Flying splice tapes are used in the paper and print industry to join supply rolls of web material, such as paper or film for example, for use continuous processes such as coating, printing, etc. These processes often include exposure of the moving web to elevated temperature in order to dry applied coatings, inks, etc.

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Optically Detectable Splicing Tapes

As the end of a first supply roll is approached a second supply roll is brought into position to be joined to the first supply roll on the fly without change of the line speed. To successfully join the two rolls the splicing equipment must be able to detect the position of the flying splice tape on the second supply roll. This can be done in a variety of ways such as applying a label on the second supply roll; providing a mark on the second supply roll; etc.

In all instances it is required that equipment be able to detect the marker and synchronize the splicing equipment to ensure the desired splicing operation is accomplished. An example of an optically detectable flying splice tape is described in EP 1544142.

This disclosure describes a flying splice tape that incorporates a layer of an optically detectable layer and a layer of primer material. The optically detectable layer may be a colored ink. In one possible construction the optically detectable layer runs along the entire length and width of the flying splice tape. In other possible constructions the dimensions of the optically detectable layer may be less than the length and/or width of the flying splice tape. The optically layer is positioned beneath the outer adhesive layer that joins the second supply roll to the moving web from the first supply roll. The primer layer is used to ensure adequate bond strength between the outer adhesive layer and the ink layer. The pr...