GB2410706A

GB2410706A - Improved adhesive tape

Info

Publication number: GB2410706A
Application number: GB0408158A
Authority: GB
Inventors: Johannes Tober
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-04
Filing date: 2004-04-13
Publication date: 2005-08-10
Also published as: GB0408158D0; GB0402447D0

Abstract

A roll of adhesive tape 1 consisting out of a semi-continuous adhesive tape with a base layer 5 of which the top side is coated with a layer of release agent 7 and the bottom side is provided with a layer of suitable adhesive 6. Perforations 4 are forming a line in lateral direction across the fill width of the tape located at defined intervals 3 in longitudinal direction so that each required segment 5 can be torn of by hand easily and without use of further tools. Each perforation is overlapped by a none-adhesive section 2 of which half will sit proud of the roll without sticking back after the proceeding segment of tape has been removed providing easy access for further tape dispensing. The other half of this none-adhesive section now separated from the roll will be helpful during tape removal from objects to which the tape was applied.

Description

24 1 0706

IMPROVED ADHESIVE TAPE

This invention relates to improved adhesive tape.

Adhesive tapes and celluloid-tapes are well known industrial and stationary items generally used for a wide variety of purposes in manufacturing, commerce, logistic, domestic and office environments but mainly with the goal to quickly and easily stick two or more pieces of material together. In most cases adhesive tape comes on a roll from which a certain length of tape is unwound and either torn of or cut of, after which the cut off length of tape is applied to the materials it is meant to bind together.

Current adhesive tapes are often translucent or transparent and very thin. It often becomes a problem to locate the start of the tape in order to unwind a certain length before it can be cut of.

To then cut of this length of tape we require an extra tool such as scissors, sharp nails, teeth or other utensil. A second problem is presented when it comes to removing the tape from material to which it was applied if so required, where it now becomes difficult to lift the end of the stuck on tape for it to be removed.

An object of this invention is to provide an easy to use adhesive tape for which no additional utensils will be required during the process of dispensing, nor when it comes to removing the tape from the material to which it was applied.

According to the present invention there is provided an improved adhesive tape, the concept of which can be applied to most existing adhesive tapes, including but not limited to; celluloid- tapes, surgical tapes, packaging tapes, insulating tapes, industrial tapes, duct tapes, sealing tapes, masking tapes and double sided tapes in which are provided lines of perforations across the full width and perpendicular to the edges of the tape located at defined intervals repeated over the full length of the tape, in which are also provided short none adhesive sections in the adhesive layer(s) across the full width of the tape, located as such that each said line of perforations coincides with the centre of such a none adhesive section, preventing half of this section from sticking back to the roll following the dispensing of a segment of tape and as such becoming easier to locate when the next piece of tape is required. - 2

A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which: Figure I shows in perspective, the roll of tape with the none-adhesive section of tape free to be pulled away from the roll.

Figure 2 illustrates the separation of the tape from the roll whereby now a segment of the tape becomes ready to be separated and dispensed.

Figure 3 illustrates a section of tape indicating the lateral lines of plural perforations and the position of the short none-adhesive sections in relation to the said lines of plural perforations.

Figure 4 illustrates a cross section of tape indicating the main base layer with a layer of release agent on top and below an adhesive layer in which short none-adhesive sections across the full width have been introduced in relation to the perforations in the base and top layers.

Figure 5 illustrates a section of tape indicating the lateral lines of plural perforations whereby the perforations located at the edges of the tape are intersecting with those edges. - 3 l

Referring to the drawing the adhesive tape comprises lateral lines of perforations 4 across the full width of the tape, perpendicular to the parallel sides of the tape and located at sensible and optionally varying intervals 3 of a range of approximately 3 - 30cm, overlapped by a short none-adhesive section 2 across the full width of the tape approximately measuring 2 -14mm in longitudinal direction of the tape. of which half is proceeding the said line of perforation while the remaining half is tailing the line of perforation. This overlap of the none-a&esive section over the line of perforation has a number of purposes. Firstly, it will mean that in the production process the perforations can be made before the adhesive layer is applied which will make the perforation process much easier as the tape is less likely to stick to the perforation tool preventing problems such as folding or breaking. Waste material produced during the perforation process will not stick to the adhesive layer 6 and can be easily removed by using an air-stream sucking away any waste. Secondly, during the adhesive application process where a thin layer of pressure sensitive adhesive or any other type of suitable adhesive is applied to the bottom side of the tape, whereby the risk of adhesive leaking through the perforations to the other side of the tape is eliminated. Thirdly, it will help prevent the completed roll from developing none circular irregularities during the winding up process. This due to the absence of adhesive at the points of perforation compensating for the inevitable increase in tape thickness caused by the perforation process. If nonetheless the problem still remains, this approach will allow for the tape to be routed through an extra set of heated pressure rollers to "iron" out any irregularities before adhesive is applied. Lastly, it will provide none-adhesive sections on both ends of the dispensed length of tape, making it easier to remove the tape from parcels or other materials when required. Said perforations 4 will be provided in a variety of shapes, form or size depending on the type and application of the adhesive tape. The spacing between individual perforations will also vary between the types of tape and their application, as will the actual measurements of the none-adhesive sections. The perforations 4 shown in the drawing nearest to the edge can either intersect with the edge of the tape or can be set in from the edge depending on the required level of tear-ability of the tape.

In order to dispense a length of the tape from the roll 1 one takes the protruding none-adhesive section 2 and pull the required length away from the roll 1. When the required length or rather number of sheets of tape are pulled free from the roll I one takes the tape on either side of the chosen perforation 4 and gently tear the required tape from the remaining tape on the roll I whereby the perforations provide an easy tear-off point. The none-adhesive section 2 now at the start of the remaining tape as seen in Figure I will stop the tape sticking back to the roll and provide easy access to the next required sheet of tape. A further less obvious advantage provided by the current invention is particularly useful were adhesive tape is used as packaging tape. When it comes to opening the tidily packed parcel the same none adhesive sections 2 now on either end of the sheet of tape, will prove useful during the removal of the tape from the parcel.

In order to provide even better visibility of the start of the tape, the none-adhesive sections may be provided with a highly visible colour.

Claims

1 An improved adhesive tape, the concept of which can be applied to most existing adhesive tapes, including but not limited to; celluloid-tapes, surgical tapes, packaging tapes, insulating tapes, industrial tapes, duct tapes, sealing tapes, masking tapes and double sided tapes in which are provided lines of perforations across the width of the tape located at defined intervals repeated over the full length of the tape, in which are also provided short none adhesive sections in the adhesive layer(s) across the full width of the tape positioned such that each said line of perforations coincides in the middle of a none-adhesive section, preventing half of this section from sticking back to the roll following the dispensing of a segment of tape.

2 Improved adhesive tape as claimed in Claim I wherein said lines of perforations are provided across the full width of the tape.

3 Improved adhesive tape as claimed in Claim 1 or Claim 2, wherein said lines of perforations provided offer the option of using a stronger base tape without sacrificing the enhanced tear-ability of this tape.

4 Improved adhesive tape as claimed in Claim 1 or Claim 3, wherein the halves of said none adhesive sections prevent the ends of the dispensed and applied tape to fully stick to the material it was applied to.

Improved adhesive tape as claimed in Claim 1 or Claim 4, wherein said none adhesive sections are provided with an indicative high visible colour.

6 Improved adhesive tape as claimed in Claim 5, wherein the perforations provided can vary in form or shape and size in order to achieve the optimum level of tear-ability to best suit the type of tape and its application. - 6

7 Improved adhesive tape as claimed in any preceding claim, wherein the said perforations provided have been positioned along a line across the width of the tape with spacing in between perforations being variable in order to achieve the optimum level of tear- ability to best suit the type of tape and its application.

8 Improved adhesive tape as claimed in Claim 7, wherein the said perforations provided are arranged in a line across the width of the tape such that the edges of the tape are not intersecting the perforations located nearest to the edges.

9 Improved adhesive tape as claimed in Claim 7, wherein the said perforations provided are arranged in a line across the width of the tape such that the edges of the tape are intersecting the perforations located nearest to the edges.

Improved adhesive tape substantially described herein with reference to figures 1-5 of the accompanying drawings.