GB2238292A - Security bags - Google Patents

Abstract

A bag to receive smaller coin filled bags comprises a sheet of plastics material folded over at 2, heat sealed 10a at its side edges inwardly of security printing 3, transversely heat sealed 10, and having a handle-forming cut out 11 between fold 2 and transverse heat seal 10, and the open end of the bag being closed by a flap 14 on the rear wall that engages adhesively (15) the outer surface of the front face, security printing 4 being provided between the flap and the surface it engages. Adhesive 15 has a barrier coating 16. The bag may have security printing 5 adjacent transverse seal 10. <IMAGE>

Description

IMPROVEMENTS IN BAGS This invention has reference to bags and more particularly, but not exclusively, to bags capable of receiving coin bags in bulk and for use in transporting the coin bags in bulk from one location to another, usually from one bank to another bank.

In our British Patent Specifications Nos. 1072696 and 1334831 there are described certain bags suitable to contain coins. Bags in accordance with British Patent No 1334831 are made to contain for example 5 worth of lOp pieces; or Ç5 worth of 5p pieces; or 50p worth of 2p pieces or 50p worth of ip pieces. Such bags have been widely used but when transporting coin from one bank branch to another bank branch it is required to transport coins of a far larger value than is contained in one bag. Accordingly many of such bags have been loaded into a bulk bag usually of hard wearing fabric material or strong plastics material.

In our British Patent Specification Nos 1132419, 1449783, 1523933 and 2132585 and European Patent No 0105581 there are described various bags suitable for containing bank notes. Such bags have included certain kinds of security printing and adhesive to prevent misuse of such bags.

It is an object of the present invention to provide an improved bag. It is another object of the present invention to provide an improved bag suitable for transporting coins in bulk in a suitable and convenient manner.

According to the present invention a bag to contain coin in bulk comprises a sheet of plastics material folded over and longitudinally heat sealed near its side edges with security printing between the lines of heat seal and the side edes of the bag and transversely heat sealed adjacent to the folded over part of the sheet and having a cut out part to form a handle portion between the fold of the sheet and the transverse heat seal and wherein the open end of the bag has a flap part to engage the outer part of the mouth of the bag with adhesive and security printing to close the bag when the flap part is folded into contact with the outer part of the mouth of the bag.

A bag in accordance with the present invention will now be described by way of example only with reference to the accompanying drawings wherein: Fig 1 is a plan view of a bag partly cut away and Fig 2 is a side view of the bag.

Referring to the drawings a bulk bag 1 is formed from a length of thermoplastics material such polyethylene or polypropylene or of nylon. The length of material is folded close to its longitudinal centre line about a foldline 2 and divided into bag widths by a cutting operation preferably using a hot wire or hot knife or the like.

The length of sheet before cutting is printed with areas 3 of security printing at the opposite sides of the bag up to the line of transverse heat seal to be hereinafter described and at 4 at the outer side of the mouth of the bag and at an area 5 adjacent the fold line 2 of the bag. Also a logo 6 is applied to the bag to specify the name of the bank or user handling or issuing the coins in the bag 1 and an indication 7 of the value of coins in the bag is also applied. Also blocks 8 of colour are printed on the bag, a label 9 is applied to the bag to which a tellers stamp and confirming signature may be applied to confirm the amount of coin in the bulk bag 1 is correct.

The security printing is preferably printed in solvent soluble ink comprised of two or more dyestuffs.

A transverse line of heat seal 10 is applied to the bag between the area 5 and the foldline 2 and a cut out 11 is formed adjacent the foldline 2 and between the foldline 2 and the line of heat seal 10. The cut out 11 is intended to serve to receive the fingers of a person to carry the bag and enable the upper part of the bag to serve as a carrying handle. Lines of heat seal are applied to the margin of the bag just within the areas 3 of security printing at the edges of the bag. Longitudinal lines of heat seal 10a are formed closely adjacent to and within the areas 3 of security printing at the opposite margins of the bag.

The sheet is folded so that the rear face 12 of the bag is deeper than the front face 13 so that a flap part 14 is formed in the rear face beyond the front face. The flap is coated with an area of adhesive 15 which is covered by a barier coating 16 to prevent the flap being secured to a surface before the coating is removed. A bag mouth is formed between the outer edges of the faces so that coin bags may readily loaded into the bag.

Micro-holes 17 are formed in the bag to allow for any air trapped in the bag to be allowed to escape.

It is preferred that the transverse lines of heat seal and the longitudinal line 10a of heat seal are applied when the longitudinal sheet is divided into bag lengths. It will be apparent that the transverse line 10 of heat seal prevents any coin bags dropping out of the handle cut out 11 of the bulk bag in use.

The security printing is preferably made up of the name of the bank repeatedly printed in small print across or along the bag as described in patent Specification no 1365240.

A bulk bag as described may have transverse width of about 10.75ins (27 cms) and a depth from the fold line 2 to the outer end of the flap part 14 of about 16.5 ins (41.4cms). The flap has a depth of about 1.5 ins (3.Scms).

The transverse heat seal line 10 is about 2.75ins (7cms) from the fold line 2 and parallel to the foldline.

In use a bag as described is used in a bank to transport bags of coin in bulk. The bag 1 is positioned with its mouth uppermost and coin bags are loaded into the bulk bag probably employing a hopper. When a required number of bags containing the required value of coins is inserted into the bulk bag, the bulk bag is closed by closing the mouth of the bag and removing the barrier coating 16 from the flap and folding the flap into contact with the security printing area 4 at the outer side of the mouth of the bag to ensure that the bag is closed and so that a warning will be given if the bag is tampered with.

The bag may be opened by cutting transversely across the bag within the line of transverse heat seal 10.

Claims (4)

1 A bag to contain coin in bulk comprising a sheet of plastics material folded over and longitudinally heat sealed near its side edges with security printing between the lines of heat seal and the side edges of the bag and transversely heat sealed adjacent to the folded over part of the sheet and having a cut out part to form a handle portion between the fold of the sheet and the transverse heat seal and wherein the open end of the bag has a flap part to engage the outer part of the mouth of the bag with adhesive means and security printing is provided between the flap part and the outer part of the mouth of the bag to close the bag when the flap part is folded into contact with the said outer part.

2 A bag according to claim 1 wherein the adhesive means comprises an area of adhesive covered by a removable barrier coating.

3 A bag according to claim 1 or 2 wherein the bag has a label applied to its front face to enable data (for example to receive a signature or tellers stamp) to be applied to the bag.

4 A bag according to any one of the preceding claims wherein the longitudinal lines of heat seal are located adjacent the margins of the bag just within the areas of security printing at the edges of the bag.

4 A bag according to any one of the preceding claims wherein the longitudinal lines of heat seal are located adjacent the margins of the bag just within the areas of security printing at the edges of the bag.

Amendments to the claims have been filed as follows CLAIMS 1 A bag to contain coin in bulk comprising a sheet of plastics material folded over and longitudinally heat sealed near its side edges and transversely heat sealed adjacent to the folded over part of the sheet and having a cut out part to form a handle portion between the fold of the sheet and the transverse heat seal and wherein the open end of the bag has a flap part to engage the outer part of the mouth of the bag with adhesive means wherein security printing is provided between the flap part and the outer part of the mouth of the bag to close the bag when the flap part is folded into contact with the said outer part and between the lines of longitudinal heat seals and the side edge of the bag and adjacent the transverse heat seal away from the folded over end of the bag.

2 A bag according to claim 1 wherein the adhesive means comprises an area of adhesive covered by a removable barrier coating.

3 A bag according to claim 1 or 2 wherein the bag has a label applied to its front face to enable data (for example to receive a signature or tellers stamp) to be applied to the bag.