GB2264074A - Multi-layer board - Google Patents
Multi-layer board Download PDFInfo
- Publication number
- GB2264074A GB2264074A GB9301953A GB9301953A GB2264074A GB 2264074 A GB2264074 A GB 2264074A GB 9301953 A GB9301953 A GB 9301953A GB 9301953 A GB9301953 A GB 9301953A GB 2264074 A GB2264074 A GB 2264074A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- board
- product
- main
- plastic
- 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.)
- Granted
Links
- 239000010410 layer Substances 0.000 claims description 138
- 229920003023 plastic Polymers 0.000 claims description 34
- 239000004033 plastic Substances 0.000 claims description 34
- 239000004922 lacquer Substances 0.000 claims description 26
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 23
- 239000011707 mineral Substances 0.000 claims description 23
- 238000004537 pulping Methods 0.000 claims description 22
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- 239000011247 coating layer Substances 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 230000035515 penetration Effects 0.000 claims description 12
- 229920001131 Pulp (paper) Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 235000014655 lactic acid Nutrition 0.000 claims description 9
- 239000004310 lactic acid Substances 0.000 claims description 9
- 238000004064 recycling Methods 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 229920001684 low density polyethylene Polymers 0.000 claims description 5
- 239000004702 low-density polyethylene Substances 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 5
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 4
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000005022 packaging material Substances 0.000 claims description 4
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 239000003085 diluting agent Substances 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims 1
- 229920002554 vinyl polymer Polymers 0.000 claims 1
- 239000000047 product Substances 0.000 description 46
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 238000004806 packaging method and process Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- IKZZIQXKLWDPCD-UHFFFAOYSA-N but-1-en-2-ol Chemical compound CCC(O)=C IKZZIQXKLWDPCD-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- WASQWSOJHCZDFK-UHFFFAOYSA-N diketene Chemical compound C=C1CC(=O)O1 WASQWSOJHCZDFK-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 150000002561 ketenes Chemical class 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- 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
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Paper (AREA)
Description
2264074 1 MULTI-LAYER BOARD PRODUCT
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a multi-layer board product for use as packaging material, comprising a top surface facing away from the product to be packed and a bottom surface in contact with the product to be packed.
2. Description of the Related Art
Packaging boards should meet several requirements particularly set by the product that is to be packed therein. Especially where liquid packaging board is concerned these requirements are in certain cases very high. Liquid packaging boards typically comprise a main layer of board material, a plastic layer being formed onto the surface thereof facing away from the product to be packed so as to provide a printable, liquid tight, heat sealable top surface that effects sterilizability of the package, and a plurality of plastic layers, such as LDPE layers, and a barrier layer of e. g. EVOH or aluminium between them being generally formed onto the surface thereof that is in contact with the product to be packed so as to provide a liquid and gas tight bottom surf ace. The purpose of the barrier layer is to provide a board product that is impermeable particularly to oxygen, this being necessary in aseptic packages. Typically a board layer contained in a liquid packaging board of this kind is strongly adhered with neutral adhesives, such as ketene dimer adhesives, whereby the degree of sizing indicated by the raw edge penetration value is relatively low and the board layer itself is then of socalled wet-strength board, which even as such is not well suited for normal refiberizing or pulping of waste. Since in addition the liquid 2 T packaging boards are coated with plastic on both sides, they form an almost unwettable and undecomposable product. Thus a product of this kind is not suited for recycling since the product can hardly be decomposed at all in normal pulping.
SUMMARY OF THE INVENTION
The object of the present invention is to pro vide a packaging board suitable for use as a liquid packaging board even in an aseptic package and yet, suitable for recycling of raw materials in conventional pulpers.
According to the first embodiment the object of the invention can be achieved by means of a board pro duct comprising a main layer of board material contain ing over 40% of mechanical pulp, the raw edge penetra tion of the layer being within the range of from 0.5 to 2.5 g/m, 24h measured with 1-0o lactic acid, a mineral coating layer on the top surface side on the surface of the main layer, at least one lacquer layer formed onto the surface of the mineral coating layer, and a plastic layer on the bottom surface side on the surface of the main layer, the mechanical strength of the plastic layer being such that the layer can be removed in essentially one part in the pulping process carried out in connec tion with the recycling of the product.
According to the second embodiment of the invention the board product comprises a main layer of board material containing over 405,1 of mechanical pulp, the raw edge penetration of the layer being within the range of from 0.5 to 2.5 g/m, 24h measured with 1% lactic acid, a mineral coating layer on the top surface side on the surface of the main layer, a printing ink la--,er formed onto the surface of the mineral coating layer, at least one lacquer layer formed onto the surface of the printing ink layer, and a plastic layer, 3 on the bottom surface side on the surface of the main layer, the mechanical strength of the plastic layer being such that the layer can be removed in essentially one part in the pulping process carried out in connec tion with the recycling of the product.
According to the third embodiment of the invention the board product comprises a main layer of board material containing over 40% of mechanical pulp, the raw edge penetration of the layer being within the range of from 0.5 to 2.5 g/m, 24h measured with lactic acid, a mineral coating layer on the top surface side on the surface of the main layer, a lacquer layer formed onto the surface of the mineral coating layer, a printing ink layer formed onto the surface of the lacquer is layer, at least one lacquer layer formed onto the surface of the printing ink layer, and a plastic layer on the bottom surface side on the surface of the main layer, the mechanical strength of the plastic layer being such that the layer can be removed in essentially one part in the pulping process carried out in connec tion with the recycling of the product.
The product according to the invention solves the problem of decomposition of the product in a pulping process on the basis of three basic ideas. First, a water-repellent, heat sealable, sterilizability effecting layer that forms the outer surface of the product is no longer produced by means of a plastic surface layer but by means of a mineral coating on the surface of the board and at least one lacquer layer applied onto the surface of said mineral coating. The mineral coating layer can then preferably also function as a base for the printing ink layer. In pulping the lacquer layer or layers and the mineral layer decompose into small particles that are not detrimental in treatment of pulp produced in pulping e.g. in a board machine.
4 According to a second basic idea involved with the board product of the invention the plastic layer formed onto the surface of the product that is in contact with the liquid to be packed is not to be decomposed in pulping but to be made so strong that it loosens from the board in pulping in essentially one part. Thus it is possible to remove said plastic layer from the pulper, whereby it has no possibility of affecting the quality of the pulp produced. The plastic waste produced can be easily recovered from the pulper and it can be used e.g. in the production of products typically manufactured from waste plastic.
Third, the decomposition of the board itself has been ensured by using at least 40% of mechanical pulp therein, particularly groundwood, the raw edge penetration thereof being sufficiently high, i.e. within the range of from 0.5 to 2.5 g/m, preferably from 1 to 2 g/m, 24h measured with 1% lactic acid. The numerical value of the raw edge penetration indicates the quantity in grams of 1% lactic acid that penetrates into the board in 24 hours per one metre of the raw edge of the board at a temperature of 230C and relative humidity of 65%. Thereby is produced a product in which the f ibrous material is readily decomposable in f iberizing although the product has been adhered to be water-repellent.
BRIEF DESCRIPTION OF THE DRAWING
In the following the multi-layer board product of the invention f or use as liquid packaging board will be described in greater detail with reference to the attached drawing, wherein the f igure shows a cross-section of an exemplary embodiment of the board product of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
As shown in the f igure, the main part of the product is formed by a board layer 1 having a strength I- of 200 to 450 pm depending primarily of the size of the package to be made therefrom. The board layer 1 should be sufficiently resistant to moisture and yet readily decomposable in pulping, whereby the raw edge penetra- tion thereof should be within the range of from 0.5 to 2.5 g/m, preferably from 1 to 2 g/m. This kind of board is preferably manufactured from a pulp wherein the proportion of mechanical pulp is at least 40%, preferably from 40 to 80%. Thus it is particularly pulp produced by a groundwood process that is suitable for use as mechanical pulp. Suitable adhesives to be used to adjust the raw edge penetration of the board to be within the desired range are resin adhesives and neutral adhesives, particularly in suitable ratios of mixture in combined use. Adhesives conventionally used in liquid packaging boards are neutral adhesives, such as ketene dimers and alkyl amber anhydrides. Here the sizing degree of the pulp is decreased and the decomposition of the pulp in pulping is improved by replacing at least part of the neutral adhesive with a resin adhesive. Consequently the product becomes such that it decomposes in pulping but is yet sufficiently resistant to moisture.
According to the invention a mineral coating with a strength varying e.g. within the range of from 10 to 20 g/M2 is formed onto the surface of the board main layer 1 facing away from the product. The mineral coating may be e.g. of clay. The primary purpose of the mineral coating is to provide the board with a surface that is suitable for printing but is yet such that it decomposes readily in pulping thereby subjecting the board layer 1 to moisture. When decomposing, the mineral coating concerned does not form particles that would cause problems in subsequent treatment of pulp or in conversion thereof into a product.
6 In the embodiment of f igure 1 a printing ink layer 3 is formed onto the surface of a mineral coating 2. Naturally, the thickness and placing of the printing ink vary in accordance with the pattern to be printed and it is also possible that a printing ink layer of this kind is not f ound in every part of the surf ace of the mineral coating 2. The thickness of a printing ink layer is typically from 2 to 4 g/M2.
To protect the board product of the invention from external moisture two lacquer layers 4 are formed onto the surf ace of the printing ink layer 3. It is particularly significant with respect to the treatment of the board product of the invention that the lacquer layers 4 are preferably provided simultaneously as the printing ink layer 3 or at least with the same machine. In other words the lacquer layers 4 are formed by using printing techniques. Techniques relevant in this case include use of a gravure roll unit and an offset process. By both the processes the lacquer layer or layers can be made to be of a desired thickness and they can also be registered. Thus in the areas of the package to be manufactured where the stress caused by external moisture is strongest, for example at the bottom, the lacquer layer can be made thicker than in the other areas of the package or a plurality of lacquer layers can be used. The typical thickness of the lacquer layers varies from 2 to 6 g/M2. The lacquers that can be used include vinylbased lacquers where an alcohol/ester mixture, such as ethanol/ethyl acetate, is used as a diluent. Particularly advantageously an aqueous dispersion of polymeric acrylate can be used as the lacquer layer. With respect to the recoverability of the product it is essential that in a conventional pulping process the lacquer layers 4 decompose into such particles that they are not problematic to the 7 subsequent treatment of the pulp produced or conversion thereof into a product and yet sufficiently protect the product from external moisture.
In the exemplary embodiment of Figure 1 a plurality of plastic layers are formed onto the bottom surface of the main layer 1 of the board product according to the invention, i.e. onto the surface that is in contact with the product. These plastic layers starting from the board layer 1 are an LDPE layer 5, a tie layer 6 of e.g. modified polyethene formed onto the surface thereof, a barrier layer 7 of ethylvinyl alcohol lor EVOH formed onto the surface thereof, a second tie layer 8 which is - like the first tie layer - e.g. of modified polyethene formed onto the surface thereof, and f inally a layer 9 of e. g. LDPE f ormed onto the surf ace of the layer 8 and being in contact with the product. It is to be emphasized that figure 1 shows an embodiment only by way of example and that the plastic layer on the bottom surface side of the product on the surface of the board layer 1 and the number, material and order of the plastic layer components contained therein can be changed without deviating from the product idea of the invention. The number, order and materials of the layers concerned are primarily determined by the product that is to be packed in the package. With regard to the object of the invention, i.e. recyclability of the board product, the whole consisting of these plastic layer components should have a mechanical strength that is such that the layer remains in essentially one part in a pulping process carried out in a conventional pulper and is therefore practically entirely removable in the process. Thus the plastic layer does not produce particles or components of other kind that would be detrimental to the further treatment of the pulp produced in pulping. The plastic 8 waste produced can be utilized e.g. in the production of products conventionally manufactured from waste plastic.
As stated above, the plastic coating in contact with the product, which in the exemplary embodiment of the f igure consists of the layers 5, 6, 7, 8 and 9, should remain in one part in pulping. The inner surf ace of conventional milk packaging board, which is coated with 26 g/M2 polythene, does not meet this requirement.
It has been found that a preferred durable structure is achieved when the plastic layer comprises at least one plastic layer component with a density greater than that of the conventional MPE coating polythene, i.e. 0.925 g/CM3. Such a component is e.g. a HDPE (density 0.941 g/CM3) or particularly advantageously ethylenevinyl alcohol or EVAL (density 1.19 g/cm3). However, such plastic is also required to be sufficiently tensile, preferably >100% (conditions as with ASTM D-638). It is then possible to produce a coating that remains in one part in pulping even when the quantity of coating is about 20 g/M2.
The multi-layer board product of the invention has been described above only by means of one exemplary embodiment and it is to be understood that several modifications can be made thereto without deviating from the basic ideas of the invention and without expanding the scope defined by the attached claims.
9
Claims (13)
1. A multi-layer board product for use as packaging material, comprising a top surface facing away from the product to be packed and a bottom surface in contact with the product to be packed, the board product comprising a main layer of board material containing over 40516 of mechanical pulp, the raw edge penetration of the layer being within the range of from 0.5 to 2.5 g/m, 24h measured with 1% lactic acid, a mineral coating layer on the top surf ace side on the surface of the main layer, at least one lacquer layer f ormed onto the surface of the mineral coating layer, and a plastic layer on the bottom surface side on the surface of the main layer, the mechanical strength of the plastic layer being such that the layer can be removed in essentially one part in the pulping process carried out in connection with the recycling of the product.
2. A multi-layer board product for use as packaging material, comprising a top surface facing away from the product to be packed and a bottom surface in contact with the product to be packed, the board product comprising a main layer of board material containing over 40% of mechanical pulp, the raw edge penetration of the layer being within the range of from 0.5 to 2.5 g/m, 24h measured with 1% lactic acid, a mineral coating layer on the top surface side on the surface of the main layer, a printing ink layer formed onto the surface of the mineral coating layer, at least one lacquer layer formed onto the surface of the printing ink layer, and a plastic layer on the bottom surface side on the surface of the main layer, the mechanical strength of the plastic layer being such that the layer can be removed in essentially one part in the pulping process carried out in connection with the recycling of the product.
3. A multi-layer board product for use as packaging material, comprising a top surface facing away from the product to be packed and a bottom surface in contact with the product to be packed, the board product comprising a main layer of board material containing over 40% of mechanical pulp, the raw edge penetration of the layer being within the range of from 0. 5 to 2. 5 g/m, 24h measured with 1% lactic acid, a mineral coating layer on the top surface side on the surface of the main layer, a lacquer layer formed onto the surface of the mineral coating layer, a printing ink layer formed onto the surface of the lacquer layer, at least one lacquer layer formed onto the surface of the printing ink layer, and a plastic layer on the bottom surface side on the surface of the main layer, the mechanical strength of the plastic layer being such that the layer can be removed in essentially one part in the pulping process carried out in connection with the recycling of the product.
4. A board product according to claim 1 or 2, c h a r a c. t e r i z e d in that the mechanical pulp used f or the production of the main layer is pulp produced from groundwood.
5. A board product according to claim 1 or 2, 11 is character i z ed in that the proportion of the mechanical pulp in the board of the main layer is from 40 to 80%.
6. A board product according to claim 1 or 2, c h a r a c t e r i z e d in that the raw edge penetration of the main layer is within the range of from 1 to 2 g/m, 24h measured with 1% lactic acid.
7. A board product according to claim 1 or 2, c-har act e r i z ed in that the adhesive used for adherence of the main layer is a mixture of a neutral adhesive and a resin adhesive.
8. A board product according to claim 1 or 2, c h a r a c t e r i z e d in that the grammage of the mineral coating layer is from 10 to 20 g/M2.
9. A board product according to claim 1 or 2, c h a r a c t e r i z e d in that the lacquer layer comprises a vinyl-based lacquer with an alcohol/ester mixture, preferably ethanol/ethyl acetate, as a diluent.
10. A board product according to claim 1 or 2, c h a r a c t e r i z e d in that the lacquer layer comprises an aqueous dispersion of polymeric acrylate.
11. A board product according to claim 1 or 2, c h a r a c t e r i z e d in that the plastic layer comprises at least one plastic layer component with a density of over 0.925 g/M3.
12. A board product according to claim 1 or 2, c h a r a c t e r i z e d in that the tensility of the plastic layer is > 100%.
13. A board product according to claim 1 or 2, c h a r a c t e r i z e d in that the plastic layer comprises an LDPE layer in contact with the main layer, a first tie layer on the surface thereof, an EVOH layer on the surface thereof, a second tie layer on the surface thereof, and an LDPE layer on the surface thereof.
1
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US83166992A | 1992-02-06 | 1992-02-06 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9301953D0 GB9301953D0 (en) | 1993-03-17 |
| GB2264074A true GB2264074A (en) | 1993-08-18 |
| GB2264074B GB2264074B (en) | 1995-05-03 |
Family
ID=25259577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9301953A Expired - Fee Related GB2264074B (en) | 1992-02-06 | 1993-02-01 | Multi-layer board product |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH0623918A (en) |
| DE (1) | DE4303224A1 (en) |
| FR (1) | FR2687645B1 (en) |
| GB (1) | GB2264074B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1941995A3 (en) * | 1995-07-03 | 2008-10-15 | Tetra Laval Holdings & Finance Sa | Packaging laminates based on cardboard and paper |
| US11151508B2 (en) | 2014-05-08 | 2021-10-19 | Ifoodbag Ab | Grocery transport packaging system |
| US11453517B2 (en) | 2014-05-08 | 2022-09-27 | Ifoodbag Ab | Grocery transport packaging system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4412828A1 (en) * | 1994-04-14 | 1995-10-19 | Jaeger Volker | Carton for commodities e.g. fluids |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4946372A (en) * | 1988-12-05 | 1990-08-07 | Union Camp Corporation | Composite paper |
| US4950510A (en) * | 1989-06-14 | 1990-08-21 | Westvaco Corporation | Multiple layer paperboard laminate |
| DE4001749A1 (en) * | 1990-01-22 | 1991-07-25 | Zweckform Etikettiertechnik | COMPOSITE MATERIAL |
| JPH04211932A (en) * | 1990-02-02 | 1992-08-03 | Goyo Paper Working Co Ltd | Synthetic resin laminated processed paper |
-
1993
- 1993-02-01 GB GB9301953A patent/GB2264074B/en not_active Expired - Fee Related
- 1993-02-04 DE DE19934303224 patent/DE4303224A1/de not_active Withdrawn
- 1993-02-04 FR FR9301244A patent/FR2687645B1/en not_active Expired - Fee Related
- 1993-02-08 JP JP2028493A patent/JPH0623918A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1941995A3 (en) * | 1995-07-03 | 2008-10-15 | Tetra Laval Holdings & Finance Sa | Packaging laminates based on cardboard and paper |
| EP2289699A1 (en) * | 1995-07-03 | 2011-03-02 | Tetra Laval Holdings & Finance SA | Packaging laminates based on cardboard and paper |
| US11151508B2 (en) | 2014-05-08 | 2021-10-19 | Ifoodbag Ab | Grocery transport packaging system |
| US11453517B2 (en) | 2014-05-08 | 2022-09-27 | Ifoodbag Ab | Grocery transport packaging system |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9301953D0 (en) | 1993-03-17 |
| GB2264074B (en) | 1995-05-03 |
| FR2687645B1 (en) | 1996-02-09 |
| JPH0623918A (en) | 1994-02-01 |
| FR2687645A1 (en) | 1993-08-27 |
| DE4303224A1 (en) | 1993-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6207242B1 (en) | Laminated package with enhanced interior and exterior | |
| CA1331736C (en) | Carton blank, especially for use in containers for food products | |
| EP0811508B1 (en) | Moisture resistant frozen food packaging using an over-print varnish | |
| US6099674A (en) | Laminated package and method of producing the same | |
| KR20040111621A (en) | A method for manufacturing light barrier packaging material, light barrier packaging material, semi paper packaging material and light barrier paper package container | |
| DE69225755D1 (en) | Easily reusable composite for packaging purposes | |
| GB2264074A (en) | Multi-layer board | |
| US4262058A (en) | Curl resistant label and method of making same | |
| US7348067B1 (en) | Composite paperboards and method of making composite paperboards | |
| KR101547935B1 (en) | Coating compositions for eco-friendly paper and producing method of eco-friendly food wrapping with moisture-proof | |
| CA2181332C (en) | Paperboard packaging with an improved sizing layer including a styrene maleic anhydride binder for reducing edgewicking | |
| RU2160670C2 (en) | Laminated packaging material, method for its manufacture and packaging container made of this material and possessing a high impermeability for gaseous oxygen | |
| JP2563071B2 (en) | Paper container with moisture resistance | |
| US11027878B2 (en) | Repulpable corrugated protein box and process for making same using wire side impregnation | |
| EP1383690B1 (en) | A packaging unit for protecting electronic components from electrostatic discharge, paper for a packing unit and a method of manufacturing said paper | |
| WO1997047702A1 (en) | Lignin-based vapor barrier formulations | |
| EP0882579B1 (en) | Gastight packaging material | |
| CA2152265A1 (en) | Packaging material and process and apparatus for producing the same | |
| WO2023191578A1 (en) | Eco-friendly packaging material and manufacturing method therefor | |
| WO1999012829A1 (en) | Packaging material | |
| WO2024141847A1 (en) | A method for manufacturing a coated paper or paperboard product | |
| CA1292935C (en) | Packing laminate for the manufacture of liquid-tight packing containers and use of such a laminate | |
| DE69517454T2 (en) | Film, in particular for packaging fatty products, and process for producing the same | |
| JP2006062160A (en) | Laminated paper for light-screening paper container | |
| JP2000281056A (en) | Waterproof corrugated fiberboard box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990201 |