CA2437290A1 - Pom pt one step with a cross directional ripping-strip - Google Patents
Pom pt one step with a cross directional ripping-strip Download PDFInfo
- Publication number
- CA2437290A1 CA2437290A1 CA002437290A CA2437290A CA2437290A1 CA 2437290 A1 CA2437290 A1 CA 2437290A1 CA 002437290 A CA002437290 A CA 002437290A CA 2437290 A CA2437290 A CA 2437290A CA 2437290 A1 CA2437290 A1 CA 2437290A1
- Authority
- CA
- Canada
- Prior art keywords
- bag
- liner
- pom
- strip
- ripping
- 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
- 239000000123 paper Substances 0.000 description 21
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000003292 glue Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000002655 kraft paper Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 208000034809 Product contamination Diseases 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009958 sewing 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
-
- 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
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/22—Details
- B65D77/30—Opening or contents-removing devices added or incorporated during filling or closing of containers
- B65D77/32—Tearing-strings or like flexible elements
- B65D77/34—Tearing-strings or like flexible elements enclosed in a mouth seal
-
- 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
- B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D2565/38—Packaging materials of special type or form
- B65D2565/381—Details of packaging materials of special type or form
- B65D2565/385—Details of packaging materials of special type or form especially suited for or with means facilitating recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Description
POM PT ONE STEP WIT1~ A CROSS DIRECTIONAL. RIPPING-STRIP
FIELD OF THE INVENTION
The present invention relates generally to the field c~f the mufti-wall paper bag industry and more particularly to the production of a Paste Open Mouth style bag with a Pinched Top, embracing an inserted liner.
EACKGROUND
In the mufti-wall paper bag industry, so far, nabody was able to provide an easy and secure opening feature in a POM style bag with a pinched top (PT) in a 2 or 3 paper ply bag with a poly inserted finer.
On the known version of POM PT style bags, the bottom is covered with a patch.
Customers require a special sealer which cuts fihe liner just above the seal to prevent the liner from being caught in the flap at the top closure. The access to the liner is thus difficult. Even when an easy opening feature is implemented, the end user usually uses a knife to open the bag, resulting in potential damage to the bag and risk of injury.
The SOM liner, the most traditional bag, offers easy access to the liner.
During manufacturing, the liner is manually inserted and sealed. The bag is closed with the help of a sewing thread. The manufacturing process is labour intensive, has a high lead time and creates risk of injury during the manual insertion. The final product has a poor standing-ability, exhibits a high risk of contamination during the filling process and is not compatible with the PT closing equipment.
The SOS liner is very similar to the SOM finer. However, it stands better on a flat surface. It still exhibits similar limitations of the SOM liner.
The SOS PT bag (or commercially known as a "WEBB bag") is a very expensive bag and is only offered by a limited amount of suppliers. It has a square bottom and is compatible with the pinch closure equipment on the tap. The bag provides a good pallet display, but still has limitations. The inner liner cannot be separated from the paper bag and hence both cannot be recycled. It is also not possible to seal the liner fully hermetically.
A very popular version in industry is the PB011/I bag. Its top closure is pinch type and is therefor adapted to the same closing eguipment. Again the liner cannot be separated and it has a poor standing-ability.
SUMMARY OF THE INVENTION
An object of the invention is to provide a POM PT bag that overcomes the above mentioned drawbacks.
Another object of the invention is to provide such a POM PT bag having an inserted liner.
Another object of the invention is to provide such a POM PT bag having a top closure that can be folded above a customer seal in order for an inner liner to be fully independent from the bag after the bag is opened with the help of a ripping-strip (easy opening feature}.
Another object of the invention is to provide such a POM PT bag wherein the Liner is not trapped in an upper flap of the bag in order for the bag to be fully recyclable.
Another object of the invention is to provide such a POM PT bag in which a liner can be removed from the bag far hygienic reasons (as for the food and pharmaceutical industries).
According to the present invention there is provided a POIVI PT bag comprising adhesive material applied on a ply step of the bag, a rip~>ing-strip and a non adhesive coated area embedding the ripping-strip. The bottom oi~ the bag comprises a folded flat bottom. The bag holds an inserted liner.
FIELD OF THE INVENTION
The present invention relates generally to the field c~f the mufti-wall paper bag industry and more particularly to the production of a Paste Open Mouth style bag with a Pinched Top, embracing an inserted liner.
EACKGROUND
In the mufti-wall paper bag industry, so far, nabody was able to provide an easy and secure opening feature in a POM style bag with a pinched top (PT) in a 2 or 3 paper ply bag with a poly inserted finer.
On the known version of POM PT style bags, the bottom is covered with a patch.
Customers require a special sealer which cuts fihe liner just above the seal to prevent the liner from being caught in the flap at the top closure. The access to the liner is thus difficult. Even when an easy opening feature is implemented, the end user usually uses a knife to open the bag, resulting in potential damage to the bag and risk of injury.
The SOM liner, the most traditional bag, offers easy access to the liner.
During manufacturing, the liner is manually inserted and sealed. The bag is closed with the help of a sewing thread. The manufacturing process is labour intensive, has a high lead time and creates risk of injury during the manual insertion. The final product has a poor standing-ability, exhibits a high risk of contamination during the filling process and is not compatible with the PT closing equipment.
The SOS liner is very similar to the SOM finer. However, it stands better on a flat surface. It still exhibits similar limitations of the SOM liner.
The SOS PT bag (or commercially known as a "WEBB bag") is a very expensive bag and is only offered by a limited amount of suppliers. It has a square bottom and is compatible with the pinch closure equipment on the tap. The bag provides a good pallet display, but still has limitations. The inner liner cannot be separated from the paper bag and hence both cannot be recycled. It is also not possible to seal the liner fully hermetically.
A very popular version in industry is the PB011/I bag. Its top closure is pinch type and is therefor adapted to the same closing eguipment. Again the liner cannot be separated and it has a poor standing-ability.
SUMMARY OF THE INVENTION
An object of the invention is to provide a POM PT bag that overcomes the above mentioned drawbacks.
Another object of the invention is to provide such a POM PT bag having an inserted liner.
Another object of the invention is to provide such a POM PT bag having a top closure that can be folded above a customer seal in order for an inner liner to be fully independent from the bag after the bag is opened with the help of a ripping-strip (easy opening feature}.
Another object of the invention is to provide such a POM PT bag wherein the Liner is not trapped in an upper flap of the bag in order for the bag to be fully recyclable.
Another object of the invention is to provide such a POM PT bag in which a liner can be removed from the bag far hygienic reasons (as for the food and pharmaceutical industries).
According to the present invention there is provided a POIVI PT bag comprising adhesive material applied on a ply step of the bag, a rip~>ing-strip and a non adhesive coated area embedding the ripping-strip. The bottom oi~ the bag comprises a folded flat bottom. The bag holds an inserted liner.
2 BRIEF DESCRIPTION OF THE DRAV~fINGS
These and other objects and advantages of the invention will become apparent upon reading the detailed description and upon referring to the drawings in which;
Figure 1 is a schematic perspective top view of a POM PT bag according to the present invention.
Figure 2 is a schematic partial perspective top view of a POM PT bag prior to the filling according to the present invention.
Figure 3 is a schematic partial perspective top view of a closed POM PT bag according to the present invention.
Figure 4 is a schematic perspective front view of a POM PT bag showing the top and the bottom closures according to the present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION
Referring to figures 1 to 4, there is shown a POM PT style multi-wall paper bag having an outer ply 1. The number of plies can varies through the field of application and the bag is preferably made of paper. The bag comprises a pasted open mouth and has a pinched top closure. The bag has a flat bottom closure 2 in order for the bag to stand in an upright position on a flat surface such as a conveyor. The filled bag preferably has a triangular profile converging from fihe bottom closure 2 to a top closure 12 of the bag when in standing position.
The top closure 12 of the bag has an upper flap 10 that can be folded, along a guideline axis 5, on the outer ply 1 for closing the open mouth. A coated adhesive 6 is located on the upper flap 10. Preferably, the coated adhesive 6 applied on the upper flap 10 is a strip of hot melt glue. The hot melt glue has to be reactivated before closure of the bag to ensure a tight seal. Other adhesive coating material, or tape, can also be used for the same purpose. For example, a two-faces adhesive tape can be applied on the upper flap 10. An advantage of tile adhesive tape over
These and other objects and advantages of the invention will become apparent upon reading the detailed description and upon referring to the drawings in which;
Figure 1 is a schematic perspective top view of a POM PT bag according to the present invention.
Figure 2 is a schematic partial perspective top view of a POM PT bag prior to the filling according to the present invention.
Figure 3 is a schematic partial perspective top view of a closed POM PT bag according to the present invention.
Figure 4 is a schematic perspective front view of a POM PT bag showing the top and the bottom closures according to the present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION
Referring to figures 1 to 4, there is shown a POM PT style multi-wall paper bag having an outer ply 1. The number of plies can varies through the field of application and the bag is preferably made of paper. The bag comprises a pasted open mouth and has a pinched top closure. The bag has a flat bottom closure 2 in order for the bag to stand in an upright position on a flat surface such as a conveyor. The filled bag preferably has a triangular profile converging from fihe bottom closure 2 to a top closure 12 of the bag when in standing position.
The top closure 12 of the bag has an upper flap 10 that can be folded, along a guideline axis 5, on the outer ply 1 for closing the open mouth. A coated adhesive 6 is located on the upper flap 10. Preferably, the coated adhesive 6 applied on the upper flap 10 is a strip of hot melt glue. The hot melt glue has to be reactivated before closure of the bag to ensure a tight seal. Other adhesive coating material, or tape, can also be used for the same purpose. For example, a two-faces adhesive tape can be applied on the upper flap 10. An advantage of tile adhesive tape over
3 the hot melted glue is that it does not require from a user to have a special closing equipment to close the bag. A soluble glue can also be used to facilitate recycling of the paper bag.
A ripping-strip 8 is located within an area 7. The area 7 is located between the adhesive coating material 6 on the upper flap 10 and the open mouth of the bag. This area 7 is kept free of adhesive material and hence forms fihe non coated area 7. The ripping-strip 8 can be made of any synthetic material. For easy gripping by a user, the ripping-strip 8 has a portion 11 exceeding an edge of the bag. This portion 11 of the ripping-strip 8 provides adequate length for the customer to get hold of it. The bag preferably has perforations 9 on both sides along the ripping-strip 8 to ease the opening process.
An inner liner 3 is inserted within the bag. The liner 3 is preferably made of polyethylene. The open mouth of the liner 3 is preferably located near the open rnouth of the bag.
During the manufacturing process of the bag, the liner 3 is mechanically inserted into the bag in form of a continuous poly tubing. The bottom of this poly tubing is heat sealed during the manufacturing process, forming a liner. flue points between the bag and the liner 3 secured the bottom of the liner 3 to the interior bottom of the bag.
The liner 3 can be completely removed from the bag after the pinched top closure is ripped open by the ripping-strip 8.
At a user's filling facility, for example, a product is filled in the finer 3.
Then, using a conventional sealer, the inner Liner 3 is sealed through the paper bag to form the customer seal 4. The adhesive coating material 6 is heated and the upper flap 10 is folded just above the customer seal 4 of the liner. The sealing of the open mouth of the liner 3 is preferably done by heating elements heating the liner 3 through the paper bag. The heat is transferred to the finer 3 which seals itself. It is important to note that during the sealing process, the liner 3 does not react with the paper bag and does not adhere to it. To remove the inner liner 3 once the upper flap 10 is folded and sealed on the outer ply 1, the user has to grab the ripping-strip 8 by the
A ripping-strip 8 is located within an area 7. The area 7 is located between the adhesive coating material 6 on the upper flap 10 and the open mouth of the bag. This area 7 is kept free of adhesive material and hence forms fihe non coated area 7. The ripping-strip 8 can be made of any synthetic material. For easy gripping by a user, the ripping-strip 8 has a portion 11 exceeding an edge of the bag. This portion 11 of the ripping-strip 8 provides adequate length for the customer to get hold of it. The bag preferably has perforations 9 on both sides along the ripping-strip 8 to ease the opening process.
An inner liner 3 is inserted within the bag. The liner 3 is preferably made of polyethylene. The open mouth of the liner 3 is preferably located near the open rnouth of the bag.
During the manufacturing process of the bag, the liner 3 is mechanically inserted into the bag in form of a continuous poly tubing. The bottom of this poly tubing is heat sealed during the manufacturing process, forming a liner. flue points between the bag and the liner 3 secured the bottom of the liner 3 to the interior bottom of the bag.
The liner 3 can be completely removed from the bag after the pinched top closure is ripped open by the ripping-strip 8.
At a user's filling facility, for example, a product is filled in the finer 3.
Then, using a conventional sealer, the inner Liner 3 is sealed through the paper bag to form the customer seal 4. The adhesive coating material 6 is heated and the upper flap 10 is folded just above the customer seal 4 of the liner. The sealing of the open mouth of the liner 3 is preferably done by heating elements heating the liner 3 through the paper bag. The heat is transferred to the finer 3 which seals itself. It is important to note that during the sealing process, the liner 3 does not react with the paper bag and does not adhere to it. To remove the inner liner 3 once the upper flap 10 is folded and sealed on the outer ply 1, the user has to grab the ripping-strip 8 by the
4 exceeding portion 11 and tear it off. Then, the user can remove the liner 3 tram the bag or leave it there. This is a bag in a bag concept.
It is recommended to use high performance paper in order to provide a strong flap at the closure. It is also possible to position a mid-step with the mid ply in a ~ paper ply bag design. The mid step is designed in such a way that the finer would stilt be positioned above the folding line 5. This mid step can :stiffen and reinforce the flap 10.
The bag is also compatible with a sealing head where the liner is trimmed just above the seal. The stepping pattern could be traditional or the one step as described in this patent.
In the case of a 3 paper ply bag, the mid ply could be stepped at mid position of the outer ply step. In this case it could be possible to add two slits at the start to help the opening.
The POM PT style bag of the present invention has the following advantages:
- Easy access to the inner liner 3 (poly tubing), easy, secure and fast opening;
- The paper bag and the poly bag are recyclable;
- Compatible with a conventional sealer where the liner is heat sealed through the paper bag at the top. The conventional sealer cannot cut the finer above the seal;
- This bag style offers a good pallet display;
- Stands very well on conveyors or on the floor;
- Minimum labour required for the filling process;
- Very hygienic bag as there is a minimal handling. The bag and the process were designed in order to minimize the potential product contamination. This bag is compatible with the actual requirements of the food industry; and - The closing is strong and secure from a food safety perspective.
The POM PT bag can be made of the following material:>:
- Inner liner 3: Poly tubing (should be strong enough to carry the material by itself);
- Inner ply of the paper bag: Multi-wall kraft paper (high performance paper is recommended);
It is recommended to use high performance paper in order to provide a strong flap at the closure. It is also possible to position a mid-step with the mid ply in a ~ paper ply bag design. The mid step is designed in such a way that the finer would stilt be positioned above the folding line 5. This mid step can :stiffen and reinforce the flap 10.
The bag is also compatible with a sealing head where the liner is trimmed just above the seal. The stepping pattern could be traditional or the one step as described in this patent.
In the case of a 3 paper ply bag, the mid ply could be stepped at mid position of the outer ply step. In this case it could be possible to add two slits at the start to help the opening.
The POM PT style bag of the present invention has the following advantages:
- Easy access to the inner liner 3 (poly tubing), easy, secure and fast opening;
- The paper bag and the poly bag are recyclable;
- Compatible with a conventional sealer where the liner is heat sealed through the paper bag at the top. The conventional sealer cannot cut the finer above the seal;
- This bag style offers a good pallet display;
- Stands very well on conveyors or on the floor;
- Minimum labour required for the filling process;
- Very hygienic bag as there is a minimal handling. The bag and the process were designed in order to minimize the potential product contamination. This bag is compatible with the actual requirements of the food industry; and - The closing is strong and secure from a food safety perspective.
The POM PT bag can be made of the following material:>:
- Inner liner 3: Poly tubing (should be strong enough to carry the material by itself);
- Inner ply of the paper bag: Multi-wall kraft paper (high performance paper is recommended);
5 - Mid ply of the paper bag (optional): Mufti-wall kraft paper (high performance paper is recommended);
- Outer ply of the paper bag: Mufti-wall kraft paper (printed or plain; high performance paper is recommended); and - Closure components: Hat melt glue (regular or ~~oluble) or two sided auto-adhesive tape, ripping-strip made of synthetic material.
While embodiments of this invention have been illustrated in the accompanying drawings and described above, it will be evident to those skilled in the art that changes and modifications may be made therein without departing from the essence of this invention.
- Outer ply of the paper bag: Mufti-wall kraft paper (printed or plain; high performance paper is recommended); and - Closure components: Hat melt glue (regular or ~~oluble) or two sided auto-adhesive tape, ripping-strip made of synthetic material.
While embodiments of this invention have been illustrated in the accompanying drawings and described above, it will be evident to those skilled in the art that changes and modifications may be made therein without departing from the essence of this invention.
6
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002437290A CA2437290A1 (en) | 2003-08-13 | 2003-08-13 | Pom pt one step with a cross directional ripping-strip |
| US10/917,509 US20050111765A1 (en) | 2003-08-13 | 2004-08-13 | POM PT one step with a cross directional ripping-strip |
| CA 2477641 CA2477641A1 (en) | 2003-08-13 | 2004-08-16 | Pom pt one step with a cross directional ripping-strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002437290A CA2437290A1 (en) | 2003-08-13 | 2003-08-13 | Pom pt one step with a cross directional ripping-strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2437290A1 true CA2437290A1 (en) | 2005-02-13 |
Family
ID=34140449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002437290A Abandoned CA2437290A1 (en) | 2003-08-13 | 2003-08-13 | Pom pt one step with a cross directional ripping-strip |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20050111765A1 (en) |
| CA (1) | CA2437290A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7819583B2 (en) * | 2005-11-04 | 2010-10-26 | Graphic Packaging International, Inc. | Bag structures and methods of assembling the same |
| US8485356B2 (en) * | 2008-02-06 | 2013-07-16 | Intra Vena, LLC | Methods for exposing and using a swab |
| US8142077B2 (en) * | 2008-04-16 | 2012-03-27 | Graphic Packaging International, Inc. | Bag structures and methods of assembling the same |
| US20090263048A1 (en) * | 2008-04-16 | 2009-10-22 | Iannelli Ii Michael Louis | Bag Structures And Methods Of Assembling The Same |
| US20110002558A1 (en) * | 2009-07-02 | 2011-01-06 | Sargin Gary F | Hooded bag with reclosable top |
| US9139339B2 (en) * | 2013-03-15 | 2015-09-22 | Standard Multiwall Bag Manufacturing Co. | Easy open apparatus and method for multi-ply bags |
| CN112469635B (en) * | 2020-10-29 | 2022-10-25 | 任德坚 | Storage device and external hardware |
| CN112550944B (en) * | 2020-11-26 | 2022-04-12 | 保定市正汇包装彩印有限公司 | Shock-absorbing environment-friendly paper bag with honeycomb paper lining and manufacturing method thereof |
| US20230365314A1 (en) * | 2022-05-12 | 2023-11-16 | Pan Pacific Plastics Mfg., Inc. | Tamper evident sealable bag assembly with note tab and method |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2488212A (en) * | 1945-10-18 | 1949-11-15 | Visking Corp | Method of sealing thermoplastic material |
| US3807626A (en) * | 1972-03-20 | 1974-04-30 | St Regis Paper Co | Gusseted pinch bottom breakaway pouch bag |
| US3910488A (en) * | 1972-03-20 | 1975-10-07 | St Regis Paper Co | Gusseted pinch bottom breakaway pouch bag |
| US3929275A (en) * | 1972-07-07 | 1975-12-30 | Union Camp Corp | Bags with film liners and method of making |
| US3958749A (en) * | 1974-04-12 | 1976-05-25 | St. Regis Paper Company | Gusseted pinch bottom breakaway pouch bag |
| US4110953A (en) * | 1975-03-11 | 1978-09-05 | Professional Packaging Limited | Reclosable bag closure system |
| CA1061751A (en) * | 1975-03-11 | 1979-09-04 | Professional Packaging Limited | Reclosable bag closure system |
| DE3070186D1 (en) * | 1979-12-21 | 1985-03-28 | Icoma Packtechnik Gmbh | Method of welding the internal layers of multi-layer paper sacks |
| US4557385A (en) * | 1984-02-23 | 1985-12-10 | Union Camp Corporation | Bag with easy open line of perforations |
| US4637063A (en) * | 1985-03-04 | 1987-01-13 | Kcl Corporation | Reclosable bag with sealed laminated liner and method |
| US4580683A (en) * | 1985-05-01 | 1986-04-08 | Jiffy Packaging Corp. | High security self-sealing mailing receptacle |
| US4840611A (en) * | 1985-11-20 | 1989-06-20 | Minigrip, Inc. | Gusseted bags with reclosure features |
| US4877139A (en) * | 1986-12-30 | 1989-10-31 | Kim Myun H | Container with an opening device comprising a guide strip and tear band |
| US4946289A (en) * | 1987-02-06 | 1990-08-07 | Union Camp Corporation | Reclosable open mouth bag |
| US5007233A (en) * | 1989-08-31 | 1991-04-16 | Union Camp Corporation | Multiwall bag and method of packaging utilizing multiwall bags |
| CA2049550C (en) * | 1991-05-30 | 2000-01-11 | Joseph Bunch | Method of making window bag assembly with content indicia |
| US5338117A (en) * | 1993-01-27 | 1994-08-16 | American Packaging Corporation | Bag and method of making the same |
| US5655653A (en) * | 1995-07-11 | 1997-08-12 | Minnesota Mining And Manufacturing Company | Pouch for orthodontic appliance |
| MY127457A (en) * | 1995-09-28 | 2006-12-29 | Payne P P Ltd | Adhesive tape |
| AUPO335596A0 (en) * | 1996-10-31 | 1996-11-28 | St. Regis Bates Pty. Ltd. | A multi-wall sack |
| US6168312B1 (en) * | 1999-06-09 | 2001-01-02 | Arthur D. Little Enterprises, Inc. | Closure system for pliable container |
| JP2003054579A (en) * | 2001-08-16 | 2003-02-26 | Showa Packs Kk | Paper bag having film inner bag |
| EP1466831B1 (en) * | 2001-12-18 | 2008-01-23 | Idemitsu Unitech Co., Ltd. | Sealed bag with unsealing tape |
| US20030147566A1 (en) * | 2002-02-02 | 2003-08-07 | Brocking Brent Edward | Disposable ash container |
-
2003
- 2003-08-13 CA CA002437290A patent/CA2437290A1/en not_active Abandoned
-
2004
- 2004-08-13 US US10/917,509 patent/US20050111765A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20050111765A1 (en) | 2005-05-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |