WO2002092448A1 - Tüte für lebensmittel mit sichtfenster - Google Patents
Tüte für lebensmittel mit sichtfenster Download PDFInfo
- Publication number
- WO2002092448A1 WO2002092448A1 PCT/EP2001/015373 EP0115373W WO02092448A1 WO 2002092448 A1 WO2002092448 A1 WO 2002092448A1 EP 0115373 W EP0115373 W EP 0115373W WO 02092448 A1 WO02092448 A1 WO 02092448A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bag
- layer
- composite material
- bread
- cellulose
- Prior art date
Links
- 239000002131 composite material Substances 0.000 claims abstract description 41
- 235000008429 bread Nutrition 0.000 claims abstract description 29
- 239000001913 cellulose Substances 0.000 claims abstract description 26
- 229920002678 cellulose Polymers 0.000 claims abstract description 26
- 229920003023 plastic Polymers 0.000 claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 14
- 235000011888 snacks Nutrition 0.000 claims abstract description 4
- 235000013305 food Nutrition 0.000 claims description 14
- 229920001684 low density polyethylene Polymers 0.000 description 11
- 239000004702 low-density polyethylene Substances 0.000 description 11
- 238000004806 packaging method and process Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 235000015173 baked goods and baking mixes Nutrition 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019688 fish Nutrition 0.000 description 1
- 235000012490 fresh bread Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000010816 packaging waste Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000036642 wellbeing Effects 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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/04—Windows or other apertures, e.g. for viewing contents
Definitions
- the present invention relates to a bag for wrapping food, in particular bread, rolls and snacks, with at least one viewing window.
- Food packaging basically has the task of protecting the product from drying out and loss of aroma as well as from harmful external influences. They also have to be harmless to health. With regard to the shelf life and freshness of the bread, it is important on the one hand that the bread, rolls, and snack do not dry out, and on the other hand that the crust of the bread remains crispy and tasty for the consumer.
- BEST ⁇ TIGU ⁇ GSKOPIE so that the customer can be served as efficiently as possible and all crumbs remain in the bag and do not spread out on the table.
- the bag consists of a composite material with at least a first layer of a cellulose-containing material and a second layer of plastic, the first layer having a specific weight of 15 to 40 g / m 2 and the second layer having a thickness of 6 to 20 ⁇ m, and wherein the composite material is perforated and the ratio of the open to closed area of the composite material is between 1/50 and 1/250.
- this bag is breathable in a certain way due to the perforation of the composite material.
- so much moisture can escape from the bag that, for example, the crust of bread can release the moisture absorbed by the inside of the bread.
- only so little moisture escapes that a sliced bread has sufficient moisture even after four days, so that it is still tasty for the consumer.
- the moisture exchange between the inside of the bag and the surroundings can be set in this previously known bag.
- the moisture transition from the inside of the bag to the environment is small, while with a large ratio the moisture transition is large.
- the bag's properties can be optimally adapted for different types of bread - bread with a hard or soft crust, juicy or harder bread.
- the bag can also be used in the sale for packaging bread that is still warm from the oven or for packaging the bread that has already cooled.
- the combination of a cellulose-containing layer with a plastic layer results in a controlled release of moisture as well as light protection. If it is on the outside, the cellulose-containing layer also feels more pleasant than a plastic layer and is also easy to print on.
- the composite material is sufficiently tear-resistant and its mass is reduced to a minimum, so that the packaging waste is very low when the bag can no longer be used.
- This bag can be used not only for keeping bread fresh, but also for other foods such as cold cuts, cheese, vegetables, meat or fish.
- the first layer of the composite material preferably consists of paper or cellulose.
- the plastic of the second layer preferably consists of a polyethylene, in particular an LDPE (low-density polyethylene) with a density of 0.915 to 0.925 g / cm 3 or an LLDPE (linear-low-density polyethylene) with a density of 0.92 to 0.935 g / cm 3 is suitable.
- LDPE low-density polyethylene
- LLDPE linear-low-density polyethylene
- the plastic layer should be temperature-resistant up to at least 120 ° C, particularly for bags for baked goods, so that the bread can be packed as early as possible after being removed from the oven.
- the first and the second layer can be releasably connected to one another, so that the composite material can be largely broken down into its components. This results in particular advantages in recycling.
- the layers of the composite material can also be firmly connected to one another, for example in the form that the plastic layer is evaporated onto the cellulose-containing layer.
- the bag can have at least one seam in its longitudinal orientation. If the second layer in particular forms the inside of the bag, the seam can be formed by sealing, gluing and / or welding the second layer. By welding, gluing and or sealing the plastic layers lying one against the other, the overlying first layer of the cellulose-containing material is also connected to the second layer at the location of the seam. This ensures the stability and strength of the bag, even with layers that are fundamentally detachable.
- the stacked composite material on the bottom side of the bag is preferably folded into one another with a double fold. The first layers of the composite material lying on top of one another by folding can then be glued to one another, so that here too a firm bond is possible, particularly in the case of a composite material that is otherwise detachable.
- the invention is based on the object of creating an improved bag for food.
- the invention makes it possible to realize one or more viewing windows on a bag for wrapping food, in particular bread, made of a composite material in that the first layer of the composite material made of the cellulose-containing material is interrupted at one or more points. Where the layer of the cellulose-containing material is interrupted, the wall of the bag is formed only by the second layer of the composite material made of plastic, which is transparent, perforated or also unpunched.
- the interruption of the first layer of the composite material made of cellulose-containing material does not have a significant influence on the freshness properties of the bag according to the invention, especially not if the size of the interruption does not exceed approx.
- the freshness property in be advantageously connected to a promotional presentation of the food wrapped in the bag.
- the second layer of the composite material made of plastic alone forms the wall of the bag; in this area of the bag, the second layer of the composite material made of plastic can be perforated or unperforated, which in turn Surprisingly, the freshness properties of the bag according to the invention are not significantly affected, provided that the area of the interruption is not significantly above V, preferably 1/3 of the total bag surface. Particularly good results are achieved if the second layer is also perforated in the area of the interruption.
- the viewing window or windows can be realized by interrupting the first layer of the cellulose-containing material at any point on the bag.
- a central area of the bag is provided with a viewing window.
- This area can, for example, be rectangular or extend in the form of strips over the entire length of the bag.
- This embodiment is particularly suitable for the packaging of loaves of bread, since the bags with the loaves of bread are placed horizontally or obliquely on the shelf, so that the consumer in question packs that in the bag from above
- the cellulose-containing material is cut out in at least one lateral region of the bag.
- This embodiment is particularly advantageous for the sale of sandwiches, baguette and the like, since the topping of the bun or baguette can be recognized in a sales-promoting manner by the lateral interruption of the layer of cellulose-containing material. Nevertheless, the freshness effect is retained.
- the LDPE layer is applied directly from a blown film extruder to the cellulose layer and is attached and / or glued to the cellulose layer by pressing the extruded LDPE layer selectively during the coating.
- the bag consists of a multiply folded rectangular sheet of the composite material, which is folded several times in the longitudinal direction, so that the LDPE layer forms the inner layer of the bag.
- the inner LDPE layer is thermally sealed in the longitudinal direction at the adjacent free ends of the sheet, so that the bag has a seam in the longitudinal direction.
- the sealing means that the cellulose layer in the area of the seam is firmly connected to the LDPE layer underneath.
- the superimposed composite material on the bottom side of the bag is folded into one another with a double fold and the outer sides of the composite material lying on top of each other due to the folding are glued together.
- the bag has a regular perforation, which is formed by holes arranged in different parallel rows with a diameter of about 1 mm and a distance of about 15 mm, the rows being about 15 mm apart.
- the ratio of the open area to the total area results here
- the bag is preferably produced using an iline process.
- the perforation is either applied to the composite material before it is processed into a bag using a needle roller, or the bag made from the composite material is rolled directly.
- a tubular bag can be produced by first cutting a layer of composite material and a layer of composite material with an interruption of the first layer. The two layers are then placed on top of each other and connected to three welded together. Due to the interruption of the first shift in one
- the bag 1 has in its central area 2 a strip-shaped interruption of the outer one
- the cellulose layer is formed. Since the LDPE layer is transparent, this central area 2 thus acts as a viewing window.
- the cellulose layer can be interrupted during the production of the composite material by fixing the widths of the cellulose to one another with an adhesive process
- Cellulose and LDPE layers can be chosen accordingly.
- the outer layer of cellulose can also be interrupted in one or more of the side areas 3 in order to attach side viewing windows to the bag 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Wrappers (AREA)
- Packages (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Laminated Bodies (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Bakery Products And Manufacturing Methods Therefor (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002447250A CA2447250C (en) | 2001-05-14 | 2001-12-31 | Bag for foodstuffs with a window |
MXPA03010378A MXPA03010378A (es) | 2001-05-14 | 2001-12-31 | Bolsa para productos alimenticios con ventana. |
DE50110726T DE50110726D1 (de) | 2001-05-14 | 2001-12-31 | Tüte für lebensmittel mit sichtfenster |
EP01986944A EP1390267B1 (de) | 2001-05-14 | 2001-12-31 | Tüte für lebensmittel mit sichtfenster |
JP2002589354A JP4359869B2 (ja) | 2001-05-14 | 2001-12-31 | のぞき窓を持つ食料品用袋 |
NO20034953A NO327284B1 (no) | 2001-05-14 | 2003-11-07 | Pose for innpakking av matvarer |
US10/706,310 US6988829B2 (en) | 2001-05-14 | 2003-11-12 | Bag with a window for foodstuffs |
ZA2003/08836A ZA200308836B (en) | 2001-05-14 | 2003-11-13 | Bag for foodstuffs with a window |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20108128.8 | 2001-05-14 | ||
DE20108128U DE20108128U1 (de) | 2001-05-14 | 2001-05-14 | Tüte für Lebensmittel mit Sichtfenster |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/706,310 Continuation US6988829B2 (en) | 2001-05-14 | 2003-11-12 | Bag with a window for foodstuffs |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002092448A1 true WO2002092448A1 (de) | 2002-11-21 |
Family
ID=7956878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/015373 WO2002092448A1 (de) | 2001-05-14 | 2001-12-31 | Tüte für lebensmittel mit sichtfenster |
Country Status (13)
Country | Link |
---|---|
US (1) | US6988829B2 (de) |
EP (1) | EP1390267B1 (de) |
JP (1) | JP4359869B2 (de) |
CN (1) | CN1318271C (de) |
AT (1) | ATE335676T1 (de) |
CA (1) | CA2447250C (de) |
DE (2) | DE20108128U1 (de) |
ES (1) | ES2271096T3 (de) |
MX (1) | MXPA03010378A (de) |
NO (1) | NO327284B1 (de) |
RU (1) | RU2003136071A (de) |
WO (1) | WO2002092448A1 (de) |
ZA (1) | ZA200308836B (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2508506A1 (en) * | 2004-05-28 | 2005-11-28 | Packaging Dynamics Operating Company | Food wrap |
GB2418655B (en) * | 2004-10-01 | 2008-03-19 | Freshway Foods Ltd | Packaging for foodstuffs |
US20060216382A1 (en) * | 2005-03-23 | 2006-09-28 | Santa Cruz Cathy D | Container and process for prolonging the edible lifespan of a food product |
DE102005016476A1 (de) * | 2005-04-08 | 2006-10-12 | Reuther Verpackung Gmbh | Fensterbeutel sowie Verfahren zu dessen Herstellung |
CN101077973B (zh) | 2006-05-26 | 2010-09-29 | 大连路明发光科技股份有限公司 | 硅酸盐荧光材料及其制造方法以及使用其的发光装置 |
CA2869788C (en) * | 2006-07-12 | 2016-07-05 | Genpak Lp | Packaging roll stock with windows |
DE102006040921A1 (de) * | 2006-08-31 | 2008-03-13 | Papier-Mettler Inhaber Michael Mettler | Verbundpapier sowie Beutel für Lebensmittel, insbesondere für vorgebackene Backwaren, enthaltend das Verbundpapier, und ein Verfahren zur Herstellung des Beutels |
US20090071850A1 (en) * | 2007-09-18 | 2009-03-19 | Little Caesar Enterprises, Inc. | Packaging For Pizza |
US20090310891A1 (en) * | 2008-06-13 | 2009-12-17 | Zenith Specialty Bag Co., Inc. | Food package and method of making same |
WO2010068874A1 (en) * | 2008-12-12 | 2010-06-17 | General Mills Marketing, Inc. | Packaged frozen precooked dough or batter-based food products and methods |
US20100237068A1 (en) * | 2009-03-17 | 2010-09-23 | Rubbermaid Incorporated | Container With In-Molded Exposed Panel |
CA2746906A1 (en) * | 2011-07-20 | 2013-01-20 | Sacs Industriels Inc. | Takeout food bag |
DE102013100131A1 (de) * | 2013-01-08 | 2014-07-10 | Windmöller & Hölscher Kg | Verfahren zum Herstellen von Säcken |
CN103879027B (zh) * | 2014-04-14 | 2016-05-11 | 张丹红 | 底部45度角粘合袋口预折痕尖底淋膜纸袋生产工艺 |
CN103935072B (zh) * | 2014-04-14 | 2016-06-01 | 梁仙芳 | M夹边尖底淋膜预折痕导向纸袋的加工方法 |
US11897226B2 (en) | 2019-08-29 | 2024-02-13 | The Paper People LLC | Recyclable compostable paper bag |
BR202020003666U2 (pt) * | 2020-02-20 | 2021-08-31 | Frederico Hygino De Oliveira Neto | Embalagem com visor transparente para acondicionar alimentos agrícolas |
USD966903S1 (en) * | 2020-12-10 | 2022-10-18 | Leftcoast Innovations Llc | Retail packaging for consumable products |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE477573A (de) * | ||||
FR1441107A (fr) * | 1965-07-20 | 1966-06-03 | Reuther Papierwerk Gmbh P | Sac d'emballage à fond en croix ou fond plat |
WO1993022207A1 (en) * | 1992-04-27 | 1993-11-11 | Dowbrands Inc. | Microperforated film and packaging bag made therefrom |
EP0867379A1 (de) * | 1997-03-23 | 1998-09-30 | Karl-Heinz Möller | Tüte für Lebensmittel |
US6033114A (en) * | 1998-01-20 | 2000-03-07 | Bagcraft Packaging, L.L.C. | Window bag with polyester lining and method of forming same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1770865A (en) * | 1928-04-11 | 1930-07-15 | Thomas M Royal | Method of manufacturing bags |
US1868069A (en) * | 1931-07-16 | 1932-07-19 | Munson John Mitchell | Composite bag |
US2158755A (en) * | 1936-09-16 | 1939-05-16 | Theodore A Hodgdon | Laminated sheet material for use in making paper bags or wrappers |
BE477473A (de) | 1941-05-27 | |||
US2745593A (en) * | 1952-10-02 | 1956-05-15 | Bemis Bro Bag Co | Bag |
US3038651A (en) * | 1961-02-23 | 1962-06-12 | L I Snodgrass Company | Lined bag |
CA2050145A1 (en) * | 1991-08-28 | 1993-03-01 | Daniel Beliveau | Perforated plastic bag for packaging fruits or vegetables |
DE29812038U1 (de) * | 1998-03-14 | 1998-09-24 | Möller, Karl-Heinz, 65191 Wiesbaden | Tüte für Lebensmittel |
-
2001
- 2001-05-14 DE DE20108128U patent/DE20108128U1/de not_active Expired - Lifetime
- 2001-12-31 AT AT01986944T patent/ATE335676T1/de active
- 2001-12-31 WO PCT/EP2001/015373 patent/WO2002092448A1/de active IP Right Grant
- 2001-12-31 EP EP01986944A patent/EP1390267B1/de not_active Expired - Lifetime
- 2001-12-31 RU RU2003136071/12A patent/RU2003136071A/ru not_active Application Discontinuation
- 2001-12-31 MX MXPA03010378A patent/MXPA03010378A/es active IP Right Grant
- 2001-12-31 DE DE50110726T patent/DE50110726D1/de not_active Expired - Lifetime
- 2001-12-31 ES ES01986944T patent/ES2271096T3/es not_active Expired - Lifetime
- 2001-12-31 JP JP2002589354A patent/JP4359869B2/ja not_active Expired - Fee Related
- 2001-12-31 CN CNB018232515A patent/CN1318271C/zh not_active Expired - Fee Related
- 2001-12-31 CA CA002447250A patent/CA2447250C/en not_active Expired - Lifetime
-
2003
- 2003-11-07 NO NO20034953A patent/NO327284B1/no not_active IP Right Cessation
- 2003-11-12 US US10/706,310 patent/US6988829B2/en not_active Expired - Lifetime
- 2003-11-13 ZA ZA2003/08836A patent/ZA200308836B/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE477573A (de) * | ||||
FR1441107A (fr) * | 1965-07-20 | 1966-06-03 | Reuther Papierwerk Gmbh P | Sac d'emballage à fond en croix ou fond plat |
WO1993022207A1 (en) * | 1992-04-27 | 1993-11-11 | Dowbrands Inc. | Microperforated film and packaging bag made therefrom |
EP0867379A1 (de) * | 1997-03-23 | 1998-09-30 | Karl-Heinz Möller | Tüte für Lebensmittel |
US6033114A (en) * | 1998-01-20 | 2000-03-07 | Bagcraft Packaging, L.L.C. | Window bag with polyester lining and method of forming same |
Also Published As
Publication number | Publication date |
---|---|
US6988829B2 (en) | 2006-01-24 |
DE50110726D1 (de) | 2006-09-21 |
CA2447250C (en) | 2007-11-06 |
US20040146225A1 (en) | 2004-07-29 |
JP4359869B2 (ja) | 2009-11-11 |
CA2447250A1 (en) | 2002-11-21 |
CN1318271C (zh) | 2007-05-30 |
EP1390267A1 (de) | 2004-02-25 |
NO327284B1 (no) | 2009-06-02 |
MXPA03010378A (es) | 2005-08-16 |
DE20108128U1 (de) | 2001-08-02 |
ATE335676T1 (de) | 2006-09-15 |
ZA200308836B (en) | 2005-06-29 |
ES2271096T3 (es) | 2007-04-16 |
EP1390267B1 (de) | 2006-08-09 |
JP2004535335A (ja) | 2004-11-25 |
RU2003136071A (ru) | 2004-11-20 |
NO20034953D0 (no) | 2003-11-07 |
CN1507403A (zh) | 2004-06-23 |
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