CA2017668A1 - Quick-opening bag for packaging, especially for vacuum packaging, food products in particular coffee - Google Patents
Quick-opening bag for packaging, especially for vacuum packaging, food products in particular coffeeInfo
- Publication number
- CA2017668A1 CA2017668A1 CA002017668A CA2017668A CA2017668A1 CA 2017668 A1 CA2017668 A1 CA 2017668A1 CA 002017668 A CA002017668 A CA 002017668A CA 2017668 A CA2017668 A CA 2017668A CA 2017668 A1 CA2017668 A1 CA 2017668A1
- Authority
- CA
- Canada
- Prior art keywords
- bag
- rectangular
- zone
- edge
- weld line
- 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.)
- Abandoned
Links
- 238000009461 vacuum packaging Methods 0.000 title claims abstract description 9
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 6
- 235000013305 food Nutrition 0.000 title claims abstract description 5
- 238000004080 punching Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241001125929 Trisopterus luscus Species 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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
- 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
- B65D75/5805—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness
-
- 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
- B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
- B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
- B65D75/12—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by flattening and heat-sealing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Bag Frames (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Abstract
ABSTRACT
For: Quick-opening bag for packaging, especially for vacuum packaging, food products in particular coffee.
The invention relates to a bag for packaging, especially vacuum packaging, folded so as to have a substantially parallelepipedic shape.
It has a rectangular upper end zone (4) which is composed of two surfaces protecting upwards from the upper face of the bag and in which the bag is sealed by a weld line which extends parallel to the long sides of the rectangular zone, the latter having, substantially in the centre, a through cutout (8) which has an edge (9) substantially parallel to the long sides (5, 6) of the rectangular zone and the upper end of which is situated between the weld line (7) and the long upper side (5), the said edge (9) being continued substantially at right angles to its lower end by an edge (10) arranged substan-tially parallel to the long sides (5, 6) between the weld line (7) and the long lower side (6).
For: Quick-opening bag for packaging, especially for vacuum packaging, food products in particular coffee.
The invention relates to a bag for packaging, especially vacuum packaging, folded so as to have a substantially parallelepipedic shape.
It has a rectangular upper end zone (4) which is composed of two surfaces protecting upwards from the upper face of the bag and in which the bag is sealed by a weld line which extends parallel to the long sides of the rectangular zone, the latter having, substantially in the centre, a through cutout (8) which has an edge (9) substantially parallel to the long sides (5, 6) of the rectangular zone and the upper end of which is situated between the weld line (7) and the long upper side (5), the said edge (9) being continued substantially at right angles to its lower end by an edge (10) arranged substan-tially parallel to the long sides (5, 6) between the weld line (7) and the long lower side (6).
Description
Quick-opening bag for packaging, especially for vacuum packaging, food products in particular coffee.
The present invention relates to a quick-opening bag for packaging, especially for vacuum packaging, food products in particular coffee.
A tubular bag made of airtight flexible material which is hermetically sealed and folded so as to produce a package ~f substantially parallelepipedic shape is customarily used for the vacuum packaging of various products, especially ground or granular coffee. In most cases, the bag constitutes in practice an inner envelope coming directly into contact with the packaged product and is covered with an outer envelope folded so as to have the same parallelepipedic shape as the bag con-stituting the inner envelope.
In order to open the packet composed of the two envelopes in this way, it is necessary to lift the two triangular flaps forming the upper end face of the packet, separating them from one another so as to release the upper end zone of the bag. This end zone is composed of two rectangular surfaces projecting upwards from the upper face of the bag and the long sides of which are respectively the end edges of the opposite faces of the bag and fold lines at the level of the upper face of the bag, the bag being sealed in this rectangular zone by a linear region or weld line which extends parallel to the long sides of the rectangular zone, in general sub-stantially midway between them.
In order to open the bag, it is necessary to break the weld line in the said rectangular zone. In view of the mechanical characteristics of the material, such as a plastic film~aluminium foil composite, constituting the bag, this tearing is performed with difficulty and above all in a manner which is not reproducible from one bag to another, as a result of which the users, not being able to open the packet simply by tearing, in practice use cutting means such as scissors to open the bag.
The present invention sets out to provide a bag which, by particularly simple and economical means, permits quic~ opening of the bag simply by tearing, this opening ~eing performed in a manner which is reliable and - 2 - 2~
reproducible from one packet to another and additionally creating an open zone which forms a pouring spout.
The bag according to the invention is essentially characterized in that it comprises in its rectangular upper end zone, substantially in the centre thereof, a through cutout which has an edge substantially perpen-dicular to the long sides of the rectangular zone and the upper end of which is situated between the weld line and the long upper side of the said rectangular zone, the said edge being continued substantially at right angles to its lower end by an edge arranged substantially parallel to the long sides of the said rectangular zone between the said weld line and the long lower side of the said rectangular zone.
Preferably, the said cutout is produced in the form of a triangle, in particular a right-angled tri-angle. The cutout may be produced by any appropriate method and is preferably produced by punching.
Advantageously, the bag has, in its rectangular upper end zone, a central weld region, for example of rectangular cross-section, covering the weld line in its central portion, the cutout being produced in thi~ weld region in such a way that the upper end of its edge which ia substantially perpendicular to the long sides of the said rectangular end zone of the bag extends beyond the upper edge of the central weld zone upwards in the direction of the long upper side of the said rectangular zone.
According to a partlcular feature of the inven-tion, there are provided, in addition to the central weldregion, two other, lateral, weld regions which extend from the short side~ of the rectangular-shaped end zone, preferably level with the longitudinal weld line.
The weld zones are produced by any conventional method suited to the nature of the material used for the bag, for example by applying heat or using ultrasound depending on the particular case.
Other advantages and features of the bag according to the invention as well as the procedure for r~ 8 opening it will now be described by way of an example which is in no way limiting, with reference to the accom-panying drawing in which:
- Figure 1 illustrates a bag of the type according to the invention in the completely closed position, - Figure 2 illustrates the arrangement of the bag in the position in which it may be opened, - Figure 3 is a partial front elevation view of the bag of Figure 2, 0 - Figure 4 is a view similar to Figure 3 illustrating the tearing of the bag during opening, - Figure 5 is a view similar to Figures 3 and 4 showing the arrangement of the bag when opened, - Figure 6 is a plan view corresponding to Figure 5, 15 and - Figures 7 and 8 are views similar to Figure 3 illustrating the different successive stages for the production of the bag according to the invention.
Reference is made first of all to Figures 1 to 3.
Figure 1 shows, in the completely closed state, a bag according to the invention which is folded up so as to form a sub~tantially parallelepipedic body 1 having a plane upper face onto which two triangular flaps 3 are applied.
On account of the folding configuration produced, this being conventional in itself, there i~
formed at the top of the bag a rectangular upper end zone 4 which extends transversely relative to the rectangular upper face 2 of the bag between the pointed portions of the triangular flaps 3.
This rectangular zone 4 which, as can be seen in Figure 2, projects upwards once the triangular flaps 3 have been unfolded from the position illustrated in Figure 1, is in fact formed by the application of the ends of the opposite faces of the bag onto one another.
The long side 5 of the rectangular zone, con-stituting the upper edge of this zone, is thus formed by juxtaposing the end edges of the opposite faces of the bag at the top of the latter. The long lower side 6 is formed by the lines for folding the ends of the oppositefaces of the bag relative to the parts of the bag con-stituting the upper face 2 and the flaps 3.
In a conventional manner, the bag is sealed in the zone 4 by a weld line 7 which extends over the entire length of the latter substantially midway between the long upper side 5 and the long lower side 6. This weld line, produced for example by applying heat, seals the bag hermetically.
10According to the invention, it is envisaged to produce a cutout 8, of triangular shape in the example illustrated, the slot having an edge 9 which is perpen-dicular to the sides 5 and 6 and is continued by an edge arranged parallel to these long sides 5 and 6, the two 15edges 9 and 10 being joined by an edge which is inclined so as to constitute a cutout in the form of a right-angled triangle.
This cutout passe~ through the two walls con-stituting the rectangular end zone 4 and is produced, for 20example, by punching with the aid of an appropriately shaped tool.
This cutout 8 is formed in a weld region 11, rectangular in the example illustrated, the upper end of the edge 9 of the slot 8 extending upwards beyond the 25upper edge of the weld region 11. This weld region 11 i8 produced substant~ally in the central portion of the zone 4. In the example illustrated, this region is slightly offset to the left relative to the middle of the zone 4.
Finally, there are also provided according to the 30invention in the rectangular zone 4 two lateral weld regions 12 and 13 which preferably extend from the short sides of the rectangular zone 4. A~ can be seen in the drawing, the central weld region 11 is arranged on either side of and covering the weld line 7, whereas the regions 3512 and 13 are arranged at the same height as the weld line 7.
In order to open a bag according to the invention, the flaps 3 are separated from the position of Figure 1 so as to be in the position illustrated in 2 ~ 8 Figure 2.
The user then grasps the right-hand portion of the projecting rectangular upper zone 4 with one hand and the left-hand portion of this zone with the other hand.
He then exerts with this other hand traction directed upwards substantially in the direction indicated by the arrow in Figure 4 so as to bring about the rupturing of the bag.
Owing to the presence of the slot 8, this rupturing takes place in a determined manner along the lines shown schematically in broken lines in Figure 4, so that a tearing of the entire left-hand portion of the zone 4 occurs. Figure 5 and also Figure 6 show the bag after tearing.
As can be seen in Figure 6, there is formed at the top of the bag a slit 14 which, by lifting the end edges of the bag, forms a pouring-~pout orifice.
It will be understood that the slot 8 imposes lines of determined rupture in order to open the bag, as a result of which an opening is easily and reliably obtained and is reproducible from one bag to another.
Figures 7 and 8 illustrate two stages of production of the upper end portion of the bag according to the invention.
As can be seen in Figure 7, once the product to be packaged ha~ been placed within the interior space 1 of the bag, presealing of the opposite faces of the bag is carried out at their upper end by welding in the zones 11, 12, 13 as illustrated in Figure 7.
The slot 8 is then produced by punching as illustrated in Figure 8, after which a negative pressure is applied in order to create a vacuum in the interior space of the bag, and finally welding is carried out along the line 7 so as to seal the bag completely in a leaktight manner.
It is then sufficient to fold down the flaps 3 and to fasten them in order to attain the completely closed position illustrated in Figure 1.
The bag illustrated in the drawing may, of - 6 - 2~7~8 course, be used as it is but preferably constitutes an inner envelope which is accommodated inside an outer envelope so as to constitute a double-envelope packet for the vacuum packaging of ground or granular coffee, for example.
Of course, the invention is not limited to such an application.
Although the invention has been described in connection with a specific embodiment, it is obvious that it is in no way limited thereto and that it is possible for it to have a number of variants and modifications without thereby either departing from its scope or its spirit.
The present invention relates to a quick-opening bag for packaging, especially for vacuum packaging, food products in particular coffee.
A tubular bag made of airtight flexible material which is hermetically sealed and folded so as to produce a package ~f substantially parallelepipedic shape is customarily used for the vacuum packaging of various products, especially ground or granular coffee. In most cases, the bag constitutes in practice an inner envelope coming directly into contact with the packaged product and is covered with an outer envelope folded so as to have the same parallelepipedic shape as the bag con-stituting the inner envelope.
In order to open the packet composed of the two envelopes in this way, it is necessary to lift the two triangular flaps forming the upper end face of the packet, separating them from one another so as to release the upper end zone of the bag. This end zone is composed of two rectangular surfaces projecting upwards from the upper face of the bag and the long sides of which are respectively the end edges of the opposite faces of the bag and fold lines at the level of the upper face of the bag, the bag being sealed in this rectangular zone by a linear region or weld line which extends parallel to the long sides of the rectangular zone, in general sub-stantially midway between them.
In order to open the bag, it is necessary to break the weld line in the said rectangular zone. In view of the mechanical characteristics of the material, such as a plastic film~aluminium foil composite, constituting the bag, this tearing is performed with difficulty and above all in a manner which is not reproducible from one bag to another, as a result of which the users, not being able to open the packet simply by tearing, in practice use cutting means such as scissors to open the bag.
The present invention sets out to provide a bag which, by particularly simple and economical means, permits quic~ opening of the bag simply by tearing, this opening ~eing performed in a manner which is reliable and - 2 - 2~
reproducible from one packet to another and additionally creating an open zone which forms a pouring spout.
The bag according to the invention is essentially characterized in that it comprises in its rectangular upper end zone, substantially in the centre thereof, a through cutout which has an edge substantially perpen-dicular to the long sides of the rectangular zone and the upper end of which is situated between the weld line and the long upper side of the said rectangular zone, the said edge being continued substantially at right angles to its lower end by an edge arranged substantially parallel to the long sides of the said rectangular zone between the said weld line and the long lower side of the said rectangular zone.
Preferably, the said cutout is produced in the form of a triangle, in particular a right-angled tri-angle. The cutout may be produced by any appropriate method and is preferably produced by punching.
Advantageously, the bag has, in its rectangular upper end zone, a central weld region, for example of rectangular cross-section, covering the weld line in its central portion, the cutout being produced in thi~ weld region in such a way that the upper end of its edge which ia substantially perpendicular to the long sides of the said rectangular end zone of the bag extends beyond the upper edge of the central weld zone upwards in the direction of the long upper side of the said rectangular zone.
According to a partlcular feature of the inven-tion, there are provided, in addition to the central weldregion, two other, lateral, weld regions which extend from the short side~ of the rectangular-shaped end zone, preferably level with the longitudinal weld line.
The weld zones are produced by any conventional method suited to the nature of the material used for the bag, for example by applying heat or using ultrasound depending on the particular case.
Other advantages and features of the bag according to the invention as well as the procedure for r~ 8 opening it will now be described by way of an example which is in no way limiting, with reference to the accom-panying drawing in which:
- Figure 1 illustrates a bag of the type according to the invention in the completely closed position, - Figure 2 illustrates the arrangement of the bag in the position in which it may be opened, - Figure 3 is a partial front elevation view of the bag of Figure 2, 0 - Figure 4 is a view similar to Figure 3 illustrating the tearing of the bag during opening, - Figure 5 is a view similar to Figures 3 and 4 showing the arrangement of the bag when opened, - Figure 6 is a plan view corresponding to Figure 5, 15 and - Figures 7 and 8 are views similar to Figure 3 illustrating the different successive stages for the production of the bag according to the invention.
Reference is made first of all to Figures 1 to 3.
Figure 1 shows, in the completely closed state, a bag according to the invention which is folded up so as to form a sub~tantially parallelepipedic body 1 having a plane upper face onto which two triangular flaps 3 are applied.
On account of the folding configuration produced, this being conventional in itself, there i~
formed at the top of the bag a rectangular upper end zone 4 which extends transversely relative to the rectangular upper face 2 of the bag between the pointed portions of the triangular flaps 3.
This rectangular zone 4 which, as can be seen in Figure 2, projects upwards once the triangular flaps 3 have been unfolded from the position illustrated in Figure 1, is in fact formed by the application of the ends of the opposite faces of the bag onto one another.
The long side 5 of the rectangular zone, con-stituting the upper edge of this zone, is thus formed by juxtaposing the end edges of the opposite faces of the bag at the top of the latter. The long lower side 6 is formed by the lines for folding the ends of the oppositefaces of the bag relative to the parts of the bag con-stituting the upper face 2 and the flaps 3.
In a conventional manner, the bag is sealed in the zone 4 by a weld line 7 which extends over the entire length of the latter substantially midway between the long upper side 5 and the long lower side 6. This weld line, produced for example by applying heat, seals the bag hermetically.
10According to the invention, it is envisaged to produce a cutout 8, of triangular shape in the example illustrated, the slot having an edge 9 which is perpen-dicular to the sides 5 and 6 and is continued by an edge arranged parallel to these long sides 5 and 6, the two 15edges 9 and 10 being joined by an edge which is inclined so as to constitute a cutout in the form of a right-angled triangle.
This cutout passe~ through the two walls con-stituting the rectangular end zone 4 and is produced, for 20example, by punching with the aid of an appropriately shaped tool.
This cutout 8 is formed in a weld region 11, rectangular in the example illustrated, the upper end of the edge 9 of the slot 8 extending upwards beyond the 25upper edge of the weld region 11. This weld region 11 i8 produced substant~ally in the central portion of the zone 4. In the example illustrated, this region is slightly offset to the left relative to the middle of the zone 4.
Finally, there are also provided according to the 30invention in the rectangular zone 4 two lateral weld regions 12 and 13 which preferably extend from the short sides of the rectangular zone 4. A~ can be seen in the drawing, the central weld region 11 is arranged on either side of and covering the weld line 7, whereas the regions 3512 and 13 are arranged at the same height as the weld line 7.
In order to open a bag according to the invention, the flaps 3 are separated from the position of Figure 1 so as to be in the position illustrated in 2 ~ 8 Figure 2.
The user then grasps the right-hand portion of the projecting rectangular upper zone 4 with one hand and the left-hand portion of this zone with the other hand.
He then exerts with this other hand traction directed upwards substantially in the direction indicated by the arrow in Figure 4 so as to bring about the rupturing of the bag.
Owing to the presence of the slot 8, this rupturing takes place in a determined manner along the lines shown schematically in broken lines in Figure 4, so that a tearing of the entire left-hand portion of the zone 4 occurs. Figure 5 and also Figure 6 show the bag after tearing.
As can be seen in Figure 6, there is formed at the top of the bag a slit 14 which, by lifting the end edges of the bag, forms a pouring-~pout orifice.
It will be understood that the slot 8 imposes lines of determined rupture in order to open the bag, as a result of which an opening is easily and reliably obtained and is reproducible from one bag to another.
Figures 7 and 8 illustrate two stages of production of the upper end portion of the bag according to the invention.
As can be seen in Figure 7, once the product to be packaged ha~ been placed within the interior space 1 of the bag, presealing of the opposite faces of the bag is carried out at their upper end by welding in the zones 11, 12, 13 as illustrated in Figure 7.
The slot 8 is then produced by punching as illustrated in Figure 8, after which a negative pressure is applied in order to create a vacuum in the interior space of the bag, and finally welding is carried out along the line 7 so as to seal the bag completely in a leaktight manner.
It is then sufficient to fold down the flaps 3 and to fasten them in order to attain the completely closed position illustrated in Figure 1.
The bag illustrated in the drawing may, of - 6 - 2~7~8 course, be used as it is but preferably constitutes an inner envelope which is accommodated inside an outer envelope so as to constitute a double-envelope packet for the vacuum packaging of ground or granular coffee, for example.
Of course, the invention is not limited to such an application.
Although the invention has been described in connection with a specific embodiment, it is obvious that it is in no way limited thereto and that it is possible for it to have a number of variants and modifications without thereby either departing from its scope or its spirit.
Claims (7)
1. Bag for packaging, especially for vacuum packaging, folded so as to have a substantially parallel-epipedic shape, having a rectangular upper end zone which is composed of two surfaces projecting upwards from the upper face of the bag and the long sides of which are respectively the end edges of the opposite faces of the bag and fold lines at the level of the upper face of the bag, the bag being sealed in this rectangular zone by a weld line which extends parallel to the long sides of the said rectangular zone, characterized in that it comprises in the said rectangular upper end zone (4), substantially in the centre thereof, a through cutout (8) which has an edge (9) substantially perpendicular to the long sides (5, 6) of the rectangular zone and the upper end of which is situated between the weld line (7) and the long upper side (5) of the rectangular zone, the said edge (9) being continued substantially at right angles to its lower end by an edge (10) arranged substantially parallel to the long sides (5, 6) of the said rectangular zone between the said weld line (7) and the long lower side (6) of the said rectangular zone.
2. Bag according to Claim 1, characterized in that the said cutout (8) is of triangular cross-section, in particular in the form of a right-angled triangle.
3. Bag according to either one of Claims 1 and 2, characterized in that the said cutout (8) is produced by punching.
4. Bag according to any one of Claims 1 to 3, characterized in that it has in the said rectangular upper zone (4) a substantially central weld region (11) especially of rectangular cross-section, extending on either side of and covering the weld line (7) in its central portion, the said cutout (8) being produced in the said weld region (11) in such a way that the upper end of its edge (9) which is substantially perpendicular to the long sides of the said rectangular end zone of the bag extends beyond the upper edge of the said weld region (11) upwards in the direction of the long upper side (5) of the said rectangular zone (4).
5. Bag according to Claim 4, characterized in that it additionally has two lateral weld regions (12, 13) extending from the short sides of the said rectangular end zone (4), preferably level with the longitudinal weld line (7).
6. Use of the bag according to any one of the preceding claims, for the vacuum packaging of food products, in particular coffee.
7. Use according to Claim 6, characterized in that the bag constitutes the inner, parallelepipedic-shaped envelope of a packet having an outer, likewise paral-lelepipedic-shaped envelope.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8907006A FR2648442B1 (en) | 1989-05-29 | 1989-05-29 | BAG WITH FAST OPENING OF PACKAGING, IN PARTICULAR OF VACUUM PACKAGING, OF FOOD PRODUCTS IN PARTICULAR COFFEE |
| FR8907006 | 1989-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2017668A1 true CA2017668A1 (en) | 1990-11-29 |
Family
ID=9382094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002017668A Abandoned CA2017668A1 (en) | 1989-05-29 | 1990-05-28 | Quick-opening bag for packaging, especially for vacuum packaging, food products in particular coffee |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0400481B1 (en) |
| AT (1) | ATE111414T1 (en) |
| CA (1) | CA2017668A1 (en) |
| DE (1) | DE59007101D1 (en) |
| DK (1) | DK0400481T3 (en) |
| ES (1) | ES2060863T3 (en) |
| FR (1) | FR2648442B1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE959716C (en) * | 1955-04-01 | 1957-03-07 | Agfa Ag Fuer Photofabrikation | Tear-open packaging |
| DE1486176A1 (en) * | 1963-01-16 | 1969-01-23 | Tetra Pak Ab | Pack made of bitgmmem and relatively stiff packaging material |
| US4176567A (en) * | 1977-03-18 | 1979-12-04 | Warren Weisberg | Method of making a tear line-forming perforation in a sealed marginal portion of a bag and a sealed bag formed thereby |
-
1989
- 1989-05-29 FR FR8907006A patent/FR2648442B1/en not_active Expired - Lifetime
-
1990
- 1990-05-23 ES ES90109881T patent/ES2060863T3/en not_active Expired - Lifetime
- 1990-05-23 DK DK90109881.4T patent/DK0400481T3/en active
- 1990-05-23 EP EP90109881A patent/EP0400481B1/en not_active Expired - Lifetime
- 1990-05-23 AT AT90109881T patent/ATE111414T1/en not_active IP Right Cessation
- 1990-05-23 DE DE59007101T patent/DE59007101D1/en not_active Expired - Fee Related
- 1990-05-28 CA CA002017668A patent/CA2017668A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP0400481A1 (en) | 1990-12-05 |
| FR2648442B1 (en) | 1991-09-20 |
| ES2060863T3 (en) | 1994-12-01 |
| ATE111414T1 (en) | 1994-09-15 |
| DE59007101D1 (en) | 1994-10-20 |
| EP0400481B1 (en) | 1994-09-14 |
| DK0400481T3 (en) | 1995-02-13 |
| FR2648442A1 (en) | 1990-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |