Browse Prior Art Database

Providing a Non-adhesive End for a Tape Roll by Printing

IP.com Disclosure Number: IPCOM000130168D
Publication Date: 2005-Oct-14
Document File: 3 page(s) / 93K

Publishing Venue

The IP.com Prior Art Database

Abstract

This disclosure concerns an entirely different way to provide an end tab for a roll of adhesive tape. Rather than use the tape’s own adhesive to adhere an already solid lamina, this disclosure teaches that it is possible to print a tab on rolls of tape. A tab is created by printing or spraying a liquid directly on the adhesive-side of the tape to ‘deaden’ the adhesive. The liquid is most conveniently applied to the web prior to roll winding. It could be applied before or after the web is slit for the production of discrete rolls.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 52% of the total text.

Page 1 of 3

Providing a Non-adhesive End for a Tape Roll by Printing

It is well known in the manufacture of rolls of adhesive tape to provide a tab at the start (end) of the roll to make it convenient to grasp the tape strand. See Figure 1. A tab typically is a piece of paper or film. It is applied as a long strip in the cross-web direction to the adhesive coated web immediately before the tape is slit into strands. The web is subsequently slit, resulting in a tab on each strand.

After winding onto a core, the strands are cut off to terminate the rolls of tape. Cutting all strands precisely adjacent to the tab is nearly impossible due to variation in strand length (web tension) and alignment of the tab to the cut off knife. This results in objectionable conditions that are referred to as over-tabbed and under-tabbed. An under- tabbed roll is objectionable because not enough tab is left for the end user to take a firm grip when the roll is used for the first time. An over-tabbed roll is objectionable because the bitter end of the tape is not non-adhesive, and the user must dig with a fingernail at the bitter end to release it from the underlying layer when the roll is used for the first time.

This disclosure concerns an entirely different way to provide an end tab for a roll of adhesive tape. Rather than use the tape's own adhesive to adhere an already solid lamina, this disclosure teaches that it is possible to print a tab on rolls of tape. A tab is created by printing or spraying a liquid directly on the adhesive-side of the tape to 'deaden' the adhesive. The liquid is most conveniently applied to the web prior to roll winding. It could be applied before or after the web is slit for the production of discrete rolls.

The liquid can be applied by a number of techniques, but ink jet printing is considered to be particularly suitable. Several advantages are offered by this technique:

* Ink jet equipment is commercially available. It is contemplated that waxed- based, solvent-based, or UV-cured inks could all be used.
* A tab could be something more than a solid band because ink jet printing equipment can be programmed, e.g. letters, logos, and variable information.

Standard Tab

Figure 1

Tab

[This page contains 1 picture or other non-text object]

Page 2 of 3

* Ink jet printing equipment may be faster than other expedients, depending on the ink cure time, because there is no need to recoil and reload the applicator mechanism between applications, which is a limiting factor on short length rolls.

For example, ink jet printing heads sold under the trade name SureFireTM, and...