EP0465522B1 - Pack assembly with tear-off portion - Google Patents
Pack assembly with tear-off portion Download PDFInfo
- Publication number
- EP0465522B1 EP0465522B1 EP90905221A EP90905221A EP0465522B1 EP 0465522 B1 EP0465522 B1 EP 0465522B1 EP 90905221 A EP90905221 A EP 90905221A EP 90905221 A EP90905221 A EP 90905221A EP 0465522 B1 EP0465522 B1 EP 0465522B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag
- reinforcing strip
- adhesive
- strip
- tear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000853 adhesive Substances 0.000 claims abstract description 47
- 230000001070 adhesive effect Effects 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 2
- 239000004033 plastic Substances 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 5
- 230000005012 migration Effects 0.000 abstract 1
- 238000013508 migration Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5816—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/1691—End- or aperture-closing arrangements or devices using adhesive applied to attached closure elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2575/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
- B65D2575/52—Details
- B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D2575/586—Opening or contents-removing devices added or incorporated during package manufacture with means for reclosing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials
- B65D75/44—Individual packages cut from webs or tubes
- B65D75/46—Individual packages cut from webs or tubes containing articles
Definitions
- This invention relates to a bag according to the preamble of claim 1 and a method according to the preamble of claim 15.
- Discrete items such as sweets, nuts or particulate material such as tobacco are typically packaged in a bag designed so that access to the contents of the bag is achieved by tearing off a portion of the bag to create an opening for access to the contents.
- the bag in many cases maybe re-closed to prevent spillage of unused contents which can be accomplished by folding the edge of the opening over on itself and fastening this position with a peg, clip or a piece of sticky tape.
- a bag of sheet material comprising a reinforcing strip for guiding a tear in the bag material along a predetermined path so that the bag can be torn along the path to form an opening in the bag, characterised in that the reinforcing strip is adhesively applied to the surface of the material of the bag and includes an adhesive re-close tab which is detachable therefrom and which may be used to re-close the opening in the bag.
- the re-close tab is formed as a part of the reinforcing strip.
- the re-close tab maybe a substantially rectangular elongate portion punched from the reinforcing strip and maybe defined by a first longitudinal edge and two shorter edges and a second longitudinal edge, the second longitudinal edge being a portion of an edge of the reinforcing strip, the shorter edges extending from the first longitudinal edge towards but not joining the second longitudinal edge, so that the re-close tab is partially attached to the reinforcing strip and the re-close tab is torn from the reinforcing strip for removal.
- the adhesive used to apply the reinforcing strip to the surface of the bag maybe sufficiently weak to permit removal of the re-close tab for re-use but sufficiently strong to prevent creep of the tear under the reinforcing strip.
- the re-close tab may comprise a low tack re-usable adhesive strip of material adhered to the surface of the reinforcing strip.
- the re-close tab may include a grip portion to be gripped between the user's fingers which can be non-adhesive or can have the adhesive inhibited for the comfort of the user.
- the reinforcing strip may have a transverse stripe which is devoid of adhesive or over which the adhesive is inhibited and the grip portion of the re-close tab may be positioned in the said stripe.
- the reinforcing strip may extend from a position on one side of the bag distanced between one third and one half the width of the bag from an edge, around the edge to an opposing position on the other side of the bag.
- the bag maybe provided with a slit or notch at an edge of the bag adjacent the guiding means, the slit or notch being arranged to assist in the starting of a tear and may be provided with tear position indicator means adjacent the tear guiding means.
- the reinforcing strip maybe spaced from a sealed end 11 at a distance according to the required size of the opening.
- a method of forming a re-closeable packaging bag of sheet material comprising forming the bag, applying a reinforcing strip to a part of the bag so that the reinforcing strip can guide a tear in the bag material along a predetermined path and the bag can be torn along the path to form an opening in the bag, characterised in that the reinforcing strip is adhesively applied to the surface of the material of the bag and includes an adhesive re-close tab which is detachable therefrom and which may be used to re-close the opening in the bag.
- the arrangement shown in Figure 1 comprises an elongate bag 10 of a suitable plastics material (e.g. polypropylene) made on a continuous operation from pre-printed sheet material.
- a suitable plastics material e.g. polypropylene
- an adhesive strip 13 is applied to a major surface of the bag in one corner thereof adjacent an end region 11.
- the strip 13 may be made of a suitable plastics material such as polyvinylchloride or polypropylene but use may be made of paper.
- the adhesive strip preferably wraps around one edge of the bag and extends around both sides of the bag to a distance of one third to one half of the width of the bag.
- a printed tear position indicator mark 14 Adjacent the adhesive strip 13 there is provided a printed tear position indicator mark 14 at which position the user may tear the bag down the line of the crimping as shown.
- a tear propagating slit 15 or notch is provided in the edge of the end region which may be emphasised by the printed indicator mark such as an arrow 14 or a verbal instruction such as "tear here".
- the bag By means of the invention it is possible for the bag to be opened in a controlled manner without experiencing random tearing of the bag with consequent spillage since the corner can be removed with one swift motion as the bag material readily tears along the line of the crimping until the tear reaches the adhesive strip 13 whereupon the tear travels along the upper edge of the strip.
- the adhesive securing the strip 13 to the bag may be of a permanent or re-usable nature and in either case is sufficiently strong to ensure that the tear does not creep under the adhesive strip.
- the strip may be removed after the corner of the bag has been torn off and serve to re-close the opened portion of the bag by overlapping the edges of the opening with the strip or by folding the bag at the opening and securing the folded portion and applying the strip.
- a re-close tab 16 in the form of a further adhesive strip separate from the adhesive strip 13 may be mounted on the adhesive strip 13 at one side of the bag.
- This may be made of plastics material (e.g. PVC) or paper and may be suitably marked with instructions so that the user may peel off the tab 16, fold over the corner of the bag at the opening and secure the folded over flap with the re-close tab.
- the adhesive of said strip 13 is sufficiently weak to permit removal of the strip for re-use but sufficiently strong to prevent creep of the tear under the adhesive strip.
- a marginal portion 17 of the re-close tab may be left free of adhesive, or have the adhesive inhibited, to enable the close tab to be gripped easily by the user.
- Figure 3 is similar to that shown in Figure 2 with the exception that the first adhesive strip 20 is attached to the surface of the bag at an obtuse angle to the longitudinal side of the bag, e.g. 45° instead of parallel to the transverse region.
- the label may be formed of two limbs at right angles (as shown in Figure 3a), located on each side of the bag respectively and opposite to each other.
- the adhesive on the first adhesive strip is such that it is not intended to be re-used and is of sufficient strength to prevent the strip from being lifted when tearing of the bag takes place for the purpose of opening the bag.
- the adhesive on the re-close tab is a low-tack adhesive suitable for the tab to be re-used several times.
- the bag label comprises an elongated strip 30 which extends around one edge of the bag and to both sides to about an equal distance across the front and back of the bag.
- the re-close label or tab 31 is an integral part of the sheet material from which the bag label is formed.
- the bag labels in this example are formed in a series on a backing web 32.
- the removable re-close tab 31 is butt cut to form a first longitudinal edge 33, and two shorter end edges 34, 35.
- a second longitudinal edge 36 is formed by a portion of the edge of the bag label proper.
- the shorter end edges 34, 35 extend from said first longitudinal edge 33 towards but remain short of said second longitudinal edge 36 so as to leave small attachment regions 37, 38.
- Figure 6 shows the bag label from the rear.
- the area marked A carries an adhesive coating of sufficient strength to retain the label in a permanent position and to prevent tearing beneath the top edge of the label.
- the areas B and C also preferably carry an adhesive coating of the same kind as on area A.
- the area D has no adhesive coating or may carry an adhesive coating which has been inhibited by a suitable process step.
- the area E has a re-usable adhesive coating.
- the re-close tab may be suitably printed with instructions for use and likewise the label may be printed in the area F to indicate nature of goods and price, etc.
- FIG. 7 and 8 The arrangement shown in Figures 7 and 8 is similar to that of Figures 5, 6 and 7 in that a removable tab 31 is butt cut from the adhesive strip 30. However, in the region G extending over one end of the tab and to the full width of the strip 30 the adhesive is omitted or inhibited so as to enable the user to lift the end of the tab for removal thereof.
- the adhesive on the strip extends over the entire surface with the possible exception of the area G and is of sufficient strength to constrain tear propagation when opening the bag but will allow re-use of the tab to re-close the bag.
- the strip and the adhesive are transparent so that the strip can be applied over the bag which may have printing in the region of application without obscuring the printing.
- the strip demarcating the tear path is in the form of an adhesive coating of plastics material applied in liquid form to one or both sides of the bag and allowed to set.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Abstract
Description
- This invention relates to a bag according to the preamble of claim 1 and a method according to the preamble of
claim 15. - Discrete items such as sweets, nuts or particulate material such as tobacco are typically packaged in a bag designed so that access to the contents of the bag is achieved by tearing off a portion of the bag to create an opening for access to the contents. The bag in many cases maybe re-closed to prevent spillage of unused contents which can be accomplished by folding the edge of the opening over on itself and fastening this position with a peg, clip or a piece of sticky tape.
- It has been proposed to provide bags with a reinforced strip to guide a tear along a path on a bag so that when a portion of the bag is torn away, a predetermined opening is formed, (see for instance CH-A- 384452 and EP-A- 12275, on which the preambles of
claims 1 and 15 are based). Other proposals provide a fastener fixed permanently to a bag which can retain the opened bag in a closed position (See for instance EP-A- 302600 and US-A- 3815810). - It is an object of this invention to provide such a re-closable bag combining in a novel manner a reinforced strip and a fastening means which is both simple and cheap to manufacture while being convenient to use.
- According to one aspect of the invention there is provided a bag of sheet material comprising a reinforcing strip for guiding a tear in the bag material along a predetermined path so that the bag can be torn along the path to form an opening in the bag, characterised in that the reinforcing strip is adhesively applied to the surface of the material of the bag and includes an adhesive re-close tab which is detachable therefrom and which may be used to re-close the opening in the bag.
- Preferably the re-close tab is formed as a part of the reinforcing strip. The re-close tab maybe a substantially rectangular elongate portion punched from the reinforcing strip and maybe defined by a first longitudinal edge and two shorter edges and a second longitudinal edge, the second longitudinal edge being a portion of an edge of the reinforcing strip, the shorter edges extending from the first longitudinal edge towards but not joining the second longitudinal edge, so that the re-close tab is partially attached to the reinforcing strip and the re-close tab is torn from the reinforcing strip for removal. The adhesive used to apply the reinforcing strip to the surface of the bag maybe sufficiently weak to permit removal of the re-close tab for re-use but sufficiently strong to prevent creep of the tear under the reinforcing strip.
- Alternatively the re-close tab may comprise a low tack re-usable adhesive strip of material adhered to the surface of the reinforcing strip. The re-close tab may include a grip portion to be gripped between the user's fingers which can be non-adhesive or can have the adhesive inhibited for the comfort of the user. The reinforcing strip may have a transverse stripe which is devoid of adhesive or over which the adhesive is inhibited and the grip portion of the re-close tab may be positioned in the said stripe. The reinforcing strip may extend from a position on one side of the bag distanced between one third and one half the width of the bag from an edge, around the edge to an opposing position on the other side of the bag. The bag maybe provided with a slit or notch at an edge of the bag adjacent the guiding means, the slit or notch being arranged to assist in the starting of a tear and may be provided with tear position indicator means adjacent the tear guiding means. The reinforcing strip maybe spaced from a sealed
end 11 at a distance according to the required size of the opening. - According to another aspect of the invention there is provided a method of forming a re-closeable packaging bag of sheet material comprising forming the bag, applying a reinforcing strip to a part of the bag so that the reinforcing strip can guide a tear in the bag material along a predetermined path and the bag can be torn along the path to form an opening in the bag, characterised in that the reinforcing strip is adhesively applied to the surface of the material of the bag and includes an adhesive re-close tab which is detachable therefrom and which may be used to re-close the opening in the bag.
- In order to promote a fuller understanding of the above and other aspects of the invention, embodiments will now be described, by way of example only with reference to the accompanying drawings in which:-
- FIGURE 1 shows a first embodiment in part perspective view;
- FIGURE 2 shows a part perspective view of a second embodiment;
- FIGURE 3 is a part perspective view of a third embodiment; and
- FIGURE 3A shows the label of this embodiment;
- FIGURE 4 is a part perspective view of a fourth embodiment;
- FIGURE 5 shows a portion of a web carrying a series of bag labels of said fourth embodiment;
- FIGURE 6 is a schematic rear view of one of the labels of FIGURE 5;
- FIGURE 7 is an alternative embodiment of that shown in FIGURES 4 and 5; and
- FIGURE 8 is a schematic rear view of one of the labels in Figure 7.
- The arrangement shown in Figure 1 comprises an
elongate bag 10 of a suitable plastics material (e.g. polypropylene) made on a continuous operation from pre-printed sheet material. Following packaging (in this example chocolate-coated raisins) in which the bag is heat-sealed transversely alongopposite end regions 11 and crimped, anadhesive strip 13 is applied to a major surface of the bag in one corner thereof adjacent anend region 11. Thestrip 13 may be made of a suitable plastics material such as polyvinylchloride or polypropylene but use may be made of paper. The adhesive strip preferably wraps around one edge of the bag and extends around both sides of the bag to a distance of one third to one half of the width of the bag. - Adjacent the
adhesive strip 13 there is provided a printed tearposition indicator mark 14 at which position the user may tear the bag down the line of the crimping as shown. To assist in the commencement of the tear atear propagating slit 15 or notch is provided in the edge of the end region which may be emphasised by the printed indicator mark such as anarrow 14 or a verbal instruction such as "tear here". - By means of the invention it is possible for the bag to be opened in a controlled manner without experiencing random tearing of the bag with consequent spillage since the corner can be removed with one swift motion as the bag material readily tears along the line of the crimping until the tear reaches the
adhesive strip 13 whereupon the tear travels along the upper edge of the strip. - The adhesive securing the
strip 13 to the bag may be of a permanent or re-usable nature and in either case is sufficiently strong to ensure that the tear does not creep under the adhesive strip. - Where the adhesive provided is strong but re-usable the strip may be removed after the corner of the bag has been torn off and serve to re-close the opened portion of the bag by overlapping the edges of the opening with the strip or by folding the bag at the opening and securing the folded portion and applying the strip.
- As shown in Figure 2, a
re-close tab 16 in the form of a further adhesive strip separate from theadhesive strip 13 may be mounted on theadhesive strip 13 at one side of the bag. This may be made of plastics material (e.g. PVC) or paper and may be suitably marked with instructions so that the user may peel off thetab 16, fold over the corner of the bag at the opening and secure the folded over flap with the re-close tab. - The adhesive of said
strip 13 is sufficiently weak to permit removal of the strip for re-use but sufficiently strong to prevent creep of the tear under the adhesive strip. - In Figure 2 a marginal portion 17 of the re-close tab may be left free of adhesive, or have the adhesive inhibited, to enable the close tab to be gripped easily by the user.
- The example of Figure 3 is similar to that shown in Figure 2 with the exception that the first
adhesive strip 20 is attached to the surface of the bag at an obtuse angle to the longitudinal side of the bag, e.g. 45° instead of parallel to the transverse region. The label may be formed of two limbs at right angles (as shown in Figure 3a), located on each side of the bag respectively and opposite to each other. - In the examples of Figures 2 and 3 the adhesive on the first adhesive strip is such that it is not intended to be re-used and is of sufficient strength to prevent the strip from being lifted when tearing of the bag takes place for the purpose of opening the bag. The adhesive on the re-close tab is a low-tack adhesive suitable for the tab to be re-used several times.
- In the example shown in Figures 4, 5 and 6, the bag label comprises an
elongated strip 30 which extends around one edge of the bag and to both sides to about an equal distance across the front and back of the bag. In this example the re-close label ortab 31 is an integral part of the sheet material from which the bag label is formed. - The bag labels in this example are formed in a series on a
backing web 32. Theremovable re-close tab 31 is butt cut to form a firstlongitudinal edge 33, and twoshorter end edges longitudinal edge 36 is formed by a portion of the edge of the bag label proper. Theshorter end edges longitudinal edge 33 towards but remain short of said secondlongitudinal edge 36 so as to leavesmall attachment regions - Figure 6 shows the bag label from the rear. The area marked A carries an adhesive coating of sufficient strength to retain the label in a permanent position and to prevent tearing beneath the top edge of the label. The areas B and C also preferably carry an adhesive coating of the same kind as on area A. Of the regions D and E of the
re-seal label 31, the area D has no adhesive coating or may carry an adhesive coating which has been inhibited by a suitable process step. The area E has a re-usable adhesive coating. - The re-close tab may be suitably printed with instructions for use and likewise the label may be printed in the area F to indicate nature of goods and price, etc.
- The arrangement shown in Figures 7 and 8 is similar to that of Figures 5, 6 and 7 in that a
removable tab 31 is butt cut from theadhesive strip 30. However, in the region G extending over one end of the tab and to the full width of thestrip 30 the adhesive is omitted or inhibited so as to enable the user to lift the end of the tab for removal thereof. - The adhesive on the strip extends over the entire surface with the possible exception of the area G and is of sufficient strength to constrain tear propagation when opening the bag but will allow re-use of the tab to re-close the bag.
- Preferably the strip and the adhesive are transparent so that the strip can be applied over the bag which may have printing in the region of application without obscuring the printing.
- In a further embodiment the strip demarcating the tear path is in the form of an adhesive coating of plastics material applied in liquid form to one or both sides of the bag and allowed to set.
Claims (15)
- A bag of sheet material having a reinforcing strip for guiding a tear in the bag material along a predetermined path so that the bag can be torn along the path to form an opening in the bag, whereby the reinforcing strip (13) is adhesively applied to the surface of the material of the bag, characterised in that the strip (13) includes an adhesive re-close tab (16,20,31) which is detachable therefrom and which may be used to re-close the opening in the bag.
- A bag as claimed in claim 1, characterised in that the re-close tab (31) is formed as a part of the reinforcing strip 13.
- A bag as claimed in claims 1 or 2, characterised in that the re-close tab (31) is a substantially rectangular elongate portion punched from the reinforcing strip (30).
- A bag as claimed in claims 1,2 or 3, characterised in that the re-close tab is defined by a first longitudinal edge (33) and two shorter edges (34,35) and a second longitudinal edge (36), the second longitudinal edge (36) being a portion of an edge of the reinforcing strip (13), the shorter edges (34,35) extending from the first longitudinal edge (33) towards but not joining the second longitudinal edge (36), so that the re-close tab is partially attached to the reinforcing strip and the re-close tab is torn from the reinforcing strip for removal.
- A bag as claimed in any one of claims 2,3 or 4, characterised in that the adhesive used to apply the reinforcing strip to the surface of the bag is sufficiently weak to permit removal of the re-close tab for use but sufficiently strong to prevent creep of the tear under the reinforcing strip.
- A bag as claimed in claim 1, characterised in that the re-close tab comprises a low tack re-usable adhesive strip of material (16,20) adhered to the surface of the reinforcing strip.
- A bag as claimed in any one of claims 1 to 6, characterised in that the re-close tab includes a grip portion (17,D and G) to be gripped between the user's fingers.
- A bag as claimed in claim 7, characterised in that the grip portion (17,D or G) has the adhesive thereon inhibited for the ease and comfort of the user.
- A bag as claimed in claim 7, characterised in that the grip portion (17,D or G) is free of adhesive for the ease and comfort of the user.
- A bag as claimed in claim 7, characterised in that the reinforcing strip has a transverse stripe which is devoid of adhesive or over which the adhesive is inhibited, the grip portion (G) of the re-close tab being positioned in the said stripe.
- A bag as claimed in any one of claims 1 to 10, characterised in that reinforcing strip extends from a position on one side of the bag distanced between one third and one half the width of the bag from an edge, around the edge to an opposing position on the other side of the bag.
- A bag as claimed in any one of claims 1 to 11, characterised in that the bag is provided with a slit or notch at an edge of the bag adjacent the guiding means, the slit or notch being arranged to assist in the starting of a tear.
- A bag as claimed in any one of claims 1 to 12 characterised in that the bag is provided with tear position indicator means adjacent the tear guiding means.
- A bag as claimed in any one of claims 1 to 13, characterised in that the reinforcing strip is spaced from a sealed end 11 at a distance according to the required size of the opening.
- A method of forming a re-closeable packaging bag of sheet material comprising forming the bag, applying a reinforcing strip to a part of the bag so that the reinforcing strip can guide a tear in the bag material along a predetermined path and the bag can be torn along the path to form an opening in the bag, whereby the reinforcing strip is adhesively applied to the surface of the material of the bag, characterised in that the strip includes an adhesive re-close tab which is detachable therefrom and which may be used to re-close the opening in the bag.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8907368 | 1989-03-31 | ||
GB898907368A GB8907368D0 (en) | 1989-03-31 | 1989-03-31 | Pack assembly with tear-off strip |
PCT/GB1990/000427 WO1990011946A1 (en) | 1989-03-31 | 1990-03-20 | Pack assembly with tear-off portion |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0465522A1 EP0465522A1 (en) | 1992-01-15 |
EP0465522B1 true EP0465522B1 (en) | 1994-07-13 |
Family
ID=10654305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90905221A Expired - Lifetime EP0465522B1 (en) | 1989-03-31 | 1990-03-20 | Pack assembly with tear-off portion |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0465522B1 (en) |
DE (1) | DE69010677T2 (en) |
GB (1) | GB8907368D0 (en) |
WO (1) | WO1990011946A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7331716B2 (en) | 2002-03-15 | 2008-02-19 | Kurita Water Industries Ltd. | Flexible container, method of forming the flexible container, seal-breaking guide of the flexible container, method of enclosing liquid in the flexible container and the liquid enclosed in the flexible container |
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Publication number | Priority date | Publication date | Assignee | Title |
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FR2719826A1 (en) * | 1994-05-10 | 1995-11-17 | Chaygneaud Dupuy Francois | Device for easy and controlled opening of a flexible sachet and sachet thus obtained. |
US5593229A (en) * | 1995-07-10 | 1997-01-14 | Rex-Rosenlew International Corporation | Heavy duty bag with easily-removable corner for pouring |
US5558438A (en) * | 1995-07-10 | 1996-09-24 | Rex-Rosenlew International Incorporated | Bag with reenforced handle and resealable pour spout opening |
ATE264234T1 (en) * | 1998-10-29 | 2004-04-15 | Michael Metz | CURVED TEAR GUIDE ON TUBING PACKAGING |
DE19924428A1 (en) * | 1999-05-28 | 2000-12-07 | 4P Verpackungen Ronsberg Gmbh | Process for producing a packaging |
AU2002342481A1 (en) * | 2002-11-20 | 2004-06-15 | Luc Marcel Lafond | Removable slit cover for flexible plastic containers |
DE202007002960U1 (en) * | 2007-02-28 | 2007-09-13 | Sca Hygiene Products Gmbh | Packaging for hygiene products |
SE534097C2 (en) * | 2008-10-22 | 2011-04-26 | Ecolean Res & Dev As | Resealable packaging |
IT1397923B1 (en) * | 2010-02-11 | 2013-02-04 | Goglio Spa | PARTICULARLY FLEXIBLE PACKAGE FOR LIQUID PRODUCTS. |
US20120298663A1 (en) * | 2011-05-26 | 2012-11-29 | Printpack Illinois, Inc. | Flexible sturdy base container and method for making the same |
MY186436A (en) * | 2015-04-16 | 2021-07-22 | Toyo Seikan Kaisha Ltd | Packaging bag |
PL3922572T3 (en) | 2020-06-10 | 2022-09-19 | Guido Valentini | Package unit comprising a packaging and a circular plate-like accessory for power tools contained in the packaging |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH384452A (en) * | 1961-04-21 | 1964-11-15 | Gutmann Bernhard | Plastic bags |
US3815810A (en) * | 1972-07-07 | 1974-06-11 | L Wellman | Opening and re-sealing device for bag containers |
DE2852877A1 (en) * | 1978-12-07 | 1980-06-19 | Hoechst Ag | BAG WITH INSERT OR Tear-off arrangement |
EP0302600A1 (en) * | 1987-07-31 | 1989-02-08 | Anchor Continental, Inc. | Flexible package |
-
1989
- 1989-03-31 GB GB898907368A patent/GB8907368D0/en active Pending
-
1990
- 1990-03-20 WO PCT/GB1990/000427 patent/WO1990011946A1/en active IP Right Grant
- 1990-03-20 EP EP90905221A patent/EP0465522B1/en not_active Expired - Lifetime
- 1990-03-20 DE DE69010677T patent/DE69010677T2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7331716B2 (en) | 2002-03-15 | 2008-02-19 | Kurita Water Industries Ltd. | Flexible container, method of forming the flexible container, seal-breaking guide of the flexible container, method of enclosing liquid in the flexible container and the liquid enclosed in the flexible container |
Also Published As
Publication number | Publication date |
---|---|
GB8907368D0 (en) | 1989-05-17 |
WO1990011946A1 (en) | 1990-10-18 |
DE69010677D1 (en) | 1994-08-18 |
EP0465522A1 (en) | 1992-01-15 |
DE69010677T2 (en) | 1994-11-03 |
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