CN1070449C - A packaging container intended for the cold storage of liquid foods in ice or water - Google Patents
A packaging container intended for the cold storage of liquid foods in ice or water Download PDFInfo
- Publication number
- CN1070449C CN1070449C CN97196237A CN97196237A CN1070449C CN 1070449 C CN1070449 C CN 1070449C CN 97196237 A CN97196237 A CN 97196237A CN 97196237 A CN97196237 A CN 97196237A CN 1070449 C CN1070449 C CN 1070449C
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- 238000003860 storage Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 235000021056 liquid food Nutrition 0.000 title claims abstract description 6
- 238000004806 packaging method and process Methods 0.000 title abstract description 14
- 239000010410 layer Substances 0.000 claims abstract description 106
- 229920003023 plastic Polymers 0.000 claims abstract description 32
- 239000004033 plastic Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 20
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 20
- -1 polypropylene Polymers 0.000 claims abstract description 18
- 239000004743 Polypropylene Substances 0.000 claims abstract description 11
- 229920001155 polypropylene Polymers 0.000 claims abstract description 11
- 239000005030 aluminium foil Substances 0.000 claims abstract description 10
- 229920000728 polyester Polymers 0.000 claims abstract description 10
- 230000004888 barrier function Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000012792 core layer Substances 0.000 claims abstract description 6
- 238000012856 packing Methods 0.000 claims description 99
- 238000003475 lamination Methods 0.000 claims description 14
- 239000011111 cardboard Substances 0.000 claims description 6
- 230000007774 longterm Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000011087 paperboard Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 11
- 239000000835 fiber Substances 0.000 abstract description 3
- 230000000717 retained effect Effects 0.000 abstract 2
- 229920001684 low density polyethylene Polymers 0.000 description 18
- 239000004702 low-density polyethylene Substances 0.000 description 18
- 238000002955 isolation Methods 0.000 description 8
- 229920000573 polyethylene Polymers 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 7
- 239000011229 interlayer Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 239000005022 packaging material Substances 0.000 description 5
- 230000014509 gene expression Effects 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- IKZZIQXKLWDPCD-UHFFFAOYSA-N but-1-en-2-ol Chemical compound CCC(O)=C IKZZIQXKLWDPCD-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000000149 penetrating effect Effects 0.000 description 1
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- 229920000642 polymer Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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- 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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- 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
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
- B32B1/00—Layered products having a non-planar shape
-
- 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
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/40—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper specially constructed to contain liquids
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/518—Oriented bi-axially
-
- 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
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
The disclosure relates to packaging containers of a packaging laminate which may be stored in ice, water or high air humidity with retained configurational stability and grip rigidity properties, as well as to use for storage of liquid foods in a cold storage medium containing liquid. The packaging laminate (10) consists of a fibre core layer (11) and an outside layer comprising a layer (12) of a plastic selected from a group consisting of polypropylene, HDPE and polyester. The above-mentioned plastic layer is preferably a biaxially oriented film. On the inside of the core layer, an additional, stability-increasing layer (16) may be applied, such as, for example, an aluminium foil. The retained superior grip stability of a packaging container made from the packaging laminate described with reference to the figure is believed to be a combination of factors such that the outer layer of the packaging container first has improved liquid barrier properties, secondly has greater thickness and thirdly has higher material rigidity in conventionally employed outer layers in packaging containers of the above-described type. In addition, the I-beam effect which occurs as a result of the rigid outside layer (12) and the rigid layer (16) on the inside of the core layer cooperating with the interjacent core layer (11) contributes to retaining configurational and grip stability in a damp or humid environment.
Description
The present invention relates to packing container, it carries out having excellent storage stability between the storage life in comprising the storage medium of liquid.Described packing container is made by laminated packaging material, and described packing comprise the sandwich layer of lamination coating, is provided with plastic layer in the outside that is used for packing container of sandwich layer.The present invention be more particularly directed to use packing container storaging liquid food in having the stored under refrigeration medium of liquid.
In packaging industry, just use disposable packing container packing for a long time and carry liquid food.
The packing that are used to make disposable packing container in many kinds comprise the sandwich layer and the polyethylene layer outer field, that liquid is close of paper or cardboard, normally low density polyethylene (LDPE) (LDPE).
Require the structure of this packing can make packaged product have best protected performance.Simultaneously, also require packaging product to be convenient to produce and carry.The sandwich layer of paper or cardboard makes package have the favorable mechanical dimensional stability.Therefore, can carry or the carrying package with simple and reasonable manner.Outer, the close overplate of polyethylene liquid is then protected sandwich layer, avoids it to absorb moisture and liquid.
According to the storage time with want packaged product, packing can comprise metal level or the plastic layer with isolation performance, and described isolation performance is meant can isolate light or gas, for example oxygen.
Usually, adopt flaky packaging material, interconnect, form tubular body, make this packing container by the longitudinal edge that makes flaky packaging material.Then, the content of needs is filled in the tubular body, seals along narrow, horizontal sealing area spaced apart from each other.Therefore, form the tubular body of the hermetically enclosed part that comprises content.Then, tubular body is separated by cutter sweep at above-mentioned sealing area.Subsequently, the position according to be tightly connected place or potted line is folded into selected geometric configuration with tubular body, thereby makes forming package container.
Usually, above-mentioned packing container does not store under the quite high condition of humidity for a long time.Therefore, covering one deck low density polyethylene (LDPE) (LDPE) in the both sides of packing sandwich layer usually can meet the demands.But, in many countries, because climate reasons need carried and between the storage life product refrigerated.Simultaneously, use freezing load transfer device or the equipment of keeping in cold storage to be restricted in some zones.Thereby, usually in packing chest or the housing made by thermal insulating material, put into the ice cube cooling food.As time goes on, the ice cube fusing makes cooling system conditioner gradually become the compound of ice cube and water, finally becomes water fully.Verified, after certain storage time, the packing container of the above-mentioned type has been lost dimensional stability and so-called clamping hardness, this is because sandwich layer (by the dimensional stability and the rigidity of sandwich layer decision packing container) slit edge edge outwards exposes, absorb moisture, make the sandwich layer deliquescing, and creep takes place.Under the quite high condition of humidity, for example at 80～100%RH, long term storage also will make the fiber absorbs moisture in the sandwich layer, thereby the stability of packing container is worsened.
An object of the present invention is to provide that type is the packaging laminate of later-model packing container described in a kind of relative introduction, thereby such packing container is not and the closely-related vice proper of packing container of the prior art.
Another object of the present invention provides a kind of packaging laminate of above-mentioned type packing container, it is in comprising the refrigerated storage medium of liquid between the storage life, has excellent storage stability, even during long term storage, this packing container also keeps its good dimensional stability and clamping hardness fully.
Another purpose of the present invention provides a kind of above-mentioned type packing container, it stores under the quite high condition of humidity, for example environmental conditions is 80～100%RH order of magnitude, even during long term storage, this packing container almost completely keeps its good dimensional stability and clamping hardness.
The present invention proposes a kind of lamination package that is used for the packing container of dimensional stability, packing container has excellent storage stability in comprising the storing media of liquid, described packing comprise the liquid absorbent core layer and the plastic layer on first of sandwich layer of paper or cardboard, the storing media that is used for direct contact liquid when packing container stores is characterized in that: for strengthening clamping hardness, package is an one deck that is applied on second of sandwich layer, effect by so-called H-girder, this layer and plastic layer are arranged to, from the packing container of package production even at packing container in that the storing media that comprises liquid is medium-term and long-term when storing, guarantee to have good clamping hardness and dimensional stability.
The present invention also is to propose a kind of packing container that is used to store the storing media that comprises liquid, it is characterized in that: it is made from above-mentioned lamination package.
Adopt thicker and harder plastic layer to cover sandwich layer, described plastic layer is selected from one group of material that polypropylene, high density polyethylene (HDPE) (HDPE) and polyester are formed, replace low density polyethylene, thereby obtain reasonable performance, promptly prevent liquid and moisture penetration sandwich layer.Simultaneously, because above-mentioned polypropylene, high density polyethylene (HDPE) and polyester layer have good hardness, thereby improved laminated packaging material as overall hardness performance.
Best, plastic layer is made of the polypropylene of orientation, directed high density polyethylene (HDPE) or directed polyester, and according to a preferred embodiment of the present invention, plastic layer is made of to polyester to high density polyethylene (HDPE) or twin shaft biaxial polypropylene, twin shaft.In conjunction with the hardness and the moisture isolation performance of above-mentioned poly-mer, the suitable thickness of selective polymer layer makes and can obviously not lose its dimensional stability and clamping hardness when packing container stores in liquid.
Best, by the thin stack of centre of extruding, polyethylene for example is stacked to the film of polypropylene orientation or biax, high density polyethylene (HDPE) or polyester on the sandwich layer.
According to the storage time with want packaged product, packing generally include extra play, and it has light isolation performance or gas barrier performance, for example isolates oxygen.Usually this isolation layer is arranged on sandwich layer on the in-to-in side of packing container.But, also isolation layer can be arranged on the opposite side of sandwich layer.This isolation layer can be made of metal level, for example can be aluminium foil or thin metal level or metallic oxide, for example monox (SiO
x, wherein x is 1.5～2.2), it is arranged on the plastic layer of directed polypropylene, high density polyethylene (HDPE) or polyester.In addition, the gas barrier layer can be made of plastic layer, and described plastic layer comprises the poly-mer with good gas barrier performance, for example ethyl vinyl alcohol (EVOH) or polyvinyl alcohol (PVAL).
In order further to protect packing container, prevent the infiltration of moisture or liquid, can prevent that the incision edge (if sometimes) in the packing outside of packing container is exposed in the water.This safety method can be realized by known methods, promptly adopts mechanical system to cover, or adopts the edge of the packing of chemical water repellant dipping incision.For example, adopt plastic strip to cover the packing edge that cuts, described plastic strip is stacked or bond on the packing each and cut edge, perhaps adopt the hydrophobic liquid material, for example the packing edge that cuts of certain type oil or grease dipping.In addition, below the incision edge of overlapping junction can be stacked to overlapping packing, thereby they can not be exposed in moisture or the liquid on every side.
Describe a preferred embodiment of the present invention in detail with reference to accompanying drawing especially below, wherein:
Fig. 1 is the scheme drawing of preferred packing of the present invention;
Fig. 2 a and 2b be respectively the packing container made of expression packing shown in Figure 1 in 5 ℃ water, along with the variation in storage time, bending strength that in packing, produces and moisture;
Fig. 3 a and 3b be respectively the packing container made of expression packing shown in Figure 1 in quite high humidity, promptly under 80～100%RH condition, along with the variation in storage time, bending strength that in packing, produces and moisture.
But, can learn, when reference accompanying drawing 1 was described specific embodiments of the present invention in detail, this professional those of ordinary skill can draw the mode of different modification or variation under the situation of not leaving the scope of the invention, and scope of the present invention is defined by the claims.
Fig. 1 has represented the scheme drawing of the embodiment of packing of the present invention, and described packing are by code name 10 expressions.This laminated packaging material comprises sandwich layer 11, for example has the paper or the cardboard of conventional packaging character.In a side of sandwich layer,, the film that is made of biaxial polypropylene (BOPP) 12 is set promptly towards packing container in-to-in surface.
In packing 10 provided by the invention, by thin interlayer, the plastic layer 13 that promptly is crushed to, for example polyethylene is stacked to layer 12 on the sandwich layer.Film 12 both sides at BOPP are coated with thin layer 14,15 aptly, and described thin layer 14,15 constitutes by increasing viscosity or heat-sealable poly-mer.
In a side of sandwich layer, it towards the inboard of packing container, can be provided with the extra play 16 that increases stability in the packing container of finishing, and this extra play 16 can have good gas barrier performance in addition.This extra play 16 that increases stability can be by metal, and for example aluminium foil constitutes.Best, this aluminium foil 16 is stacked on the sandwich layer 11 by interlayer.Described interlayer is by the thin plastic layer of extruding, and for example polyethylene layer 17 constitutes.In order to prevent packaged product direct contact metal (requirement according to packaged food should be prevented), plastic covering layer 18 on the aluminium foil 16 of packing container inboard, polyethylene for example, this plastic layer preferably has the heat seal performance.
In Fig. 2 a and 2b and 3a and 3b, the packing of type shown in Fig. 1 are stored in water and quite high humidity respectively, 80～100%RH for example, temperature is to test under 5 ℃ the condition.
The tested packing of expression in Fig. 2 and 3, layer 12 is approximately 18 microns BOPP film by thickness and constitutes, it is 0.6～0.7 micron thin layer 14,15 that its both sides are coated with thickness, and described thin layer 14,15 is by increasing constituting with heat-sealable poly-mer of viscosity.By interlayer film 12 is stacked on the sandwich layer 11, described interlayer is that the thickness of extruding is approximately 12 microns low density polyethylene (LDPE) (LDPE), adopt same way as by interlayer aluminium foil to be stacked in the opposite side of sandwich layer, described interlayer is that thickness is approximately 25 microns low density polyethylene (LDPE).At the opposite side of aluminium foil, promptly in the face of packing container in-to-in one side, the low density polyethylene (LDPE) 18 that adopts thickness to be approximately 35 microns covers aluminium foil 16.Sandwich layer 11 is made of the paper with packaging character, for example adopts the so-called liquid cardboard of known type, has hardness 80mN.
With the packing 10 of test with have structure with packing 10 identical, still do not have the packing of the general type of film 12 to compare.In the packing of routine, the thickness that sandwich layer is coated with extruding is 12 microns low density polyethylene layer, described polyethylene layer be positioned at sandwich layer on the exterior side of packing container.
To volume that make, TETRA BRIK type is that 250m1 parallelepiped pack containers store was tested in 12 days by packing.15 packages were measured at 1,2,5 and 12 day respectively.
According to SGANP29:84, adopting trade mark is LORENTZON ﹠amp; WELTRE, the test equipment of code name 16 is measured bending strength.The value GM of the bending strength that provides in diagram represents that with the geometric mean of the bending strength of measurement wherein a part is measured along the direction (MD) of equipment, and a part transversely direction (CD) is measured, that is, GM=√ (MD * CD).
From Fig. 2 a and 3a as can be seen, bending strength according to test material 10 of the present invention, respectively under the quite high condition of water and air humidity, in the 12 day time of storage, all keep good, and the bending strength of the packing container of corresponding routine approximately descended 20% later in one day in storage, in water, store 12 days and approximately descend 30% later on, under high humidity, store 12 days and approximately descend 10% later on.
It can also be seen that by Fig. 2 b and 3b in the identical storage test phase, the moisture in packing of measurement increases, and reduces in material of the present invention in the packing of routine.
The hardness of the hardness ratio low density polyethylene (LDPE) of the paper material in sandwich layer is high significantly, and for this reason, low density polyethylene layer can significantly not increase the integral hardness of packing.
Along with the increase of moisture, the hardness of the packing in the sandwich layer reduces.Therefore, the total hardness of packing also decreases.
When sandwich layer is provided with stacked outer layer plastic material on the contrary, at direction (MD) and horizontal direction (CD) hardness is increased on the one hand along equipment, on the other hand, compare with the outer layer of polyethene of routine, make the penetrating quality of moisture reduce, even under quite high damp condition, the hardness of whole packing and stability are all increased.
In the test of packing 10, find between the rigid outer layer 12 of sandwich layer and the metallic paper 16 on the side of inside, to form the effect of H-girder.Can compensate the creep of the sandwich layer that has absorbed moisture or moisture by two- layer 12,16 hardness on every side.Effect that may this H-girder increases along with the increase of the thickness of sandwich layer, because fiber absorbs moisture after expansion, and distance increases between higher two-layer of hardness.Therefore, this effect impels packing to keep its original hardness in the air of water and high humidity.
By other test it can also be seen that in water store several days after, the packing container of test material 10 still keeps its clamping hardness, meanwhile Chang Gui packing have been lost clamping hardness, and the generation creep.
The good clamping stability that the packing container of being made by wrapper material shown in Figure 1 keeps is owing to the combination of a plurality of factors, wherein, compare with the skin of the packing container of the above-mentioned type that uses in the prior art, the skin of packing container of the present invention at first has reasonable liquid isolation performance, second has bigger thickness, and the 3rd has higher material hardness.
Best, outer plastic layer is selected from one group of material that polypropylene, high density polyethylene (HDPE) and polyester are formed, and the thickness of plastic layer is at least 10 microns, and is at least 1000MPa in the E of equipment and horizontal direction modulus.
According to a preferred embodiment of the present invention, the thickness of above-mentioned outer plastic layer is at least 15 microns, and/or is at least 2000MPa in the E of equipment and horizontal direction modulus.
According to another preferred embodiment of the present invention, above-mentioned outer plastic layer is at least 3000MPa in the E of device orientation and horizontal direction modulus respectively.
Be surprised to find that also under the synergy of the rigid layer of the skin of rigidity and sandwich layer opposite side, make packing container have good clamping stability, the rigid layer of described opposite side is an aluminium foil.Thus, make the effect of the material production H-girder of the sandwich layer in the middle of having.
As mentioned above as can be seen, the packing container that the present invention relates to, for example plastics or metallo-packing container are suitable for chilled goods in water or ice, it can be stored under the quite high situation of humidity, be environmental conditions 80～100%RH, even after long-term storage, also do not lose its good dimensional stability and clamping hardness.
Claims (14)
1. lamination package (10) that is used for the packing container of dimensional stability, packing container has excellent storage stability in comprising the storing media of liquid, described packing (10) comprise the liquid absorbent core layer (11) and the plastic layer (12) on first of sandwich layer (11) of paper or cardboard, the storing media that is used for direct contact liquid when packing container stores is characterized in that: for strengthening clamping hardness, package is an one deck (16) that is applied on second of sandwich layer, effect by so-called H-girder, this layer (16) is arranged to plastic layer (12), from the packing container of package production even at packing container in that the storing media that comprises liquid is medium-term and long-term when storing, guarantee to have good clamping hardness and dimensional stability.
2. according to the described lamination package of claim 1, it is characterized in that: described plastic layer (12) comprises the polypropylene of one deck orientation, directed high density polyethylene (HDPE) or directed polyester.
3. according to the described lamination package of claim 2, it is characterized in that: described plastic layer (12) is biax polypropylene, high density polyethylene (HDPE) or polyester.
4. according to the described lamination package of claim 1, it is characterized in that: the layer (16) on second of sandwich layer (11) comprises the plastic layer that increases stability, and the plastic layer on first of this layer and sandwich layer can be of the same type or other types.
5. according to the described lamination package of claim 1, it is characterized in that: comprise the gas barrier layer.
6. according to the described lamination package of claim 5, it is characterized in that: the gas barrier layer is formed in the layer (16) on second of sandwich layer (11).
7. according to claim 5 or 6 described lamination packages, it is characterized in that: the gas barrier layer is made of metal level.
8. according to the described lamination package of claim 4, it is characterized in that: the described layer (16) that increases stability is made of aluminium foil.
9. use the method for one of claim 1～8 described lamination package, it is characterized in that: in comprising the stored under refrigeration medium of liquid, store liquid food.
10. according to the described using method of claim 9, it is characterized in that: the described stored under refrigeration medium that comprises liquid is the compound of ice and water.
11. a packing container that is used to store the storing media that comprises liquid is characterized in that: the described lamination package of one of its Accessory Right requirement 1～8 is made.
12. according to the described packing container of claim 11, it is characterized in that: any cut edge that may occur on the packing container outside should prevent to be exposed in the water.
13., it is characterized in that according to the described packing container of claim 12: folding by the packing coincidence, mechanically protect the packing container edge that cuts, perhaps covered protection plastic strip on the packing container edge of cutting.
14., it is characterized in that according to the described packing container of claim 12: by flooding hydrophobic liquid substance, the packing container edge that adopts the chemical mode protection to cut.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9602717A SE507094C3 (en) | 1996-07-09 | 1996-07-09 | Packaging containers intended for cold storage of liquid foods in ice or water |
| SE9602717-2 | 1996-07-09 | ||
| SE96027172 | 1996-07-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1225064A CN1225064A (en) | 1999-08-04 |
| CN1070449C true CN1070449C (en) | 2001-09-05 |
Family
ID=20403341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97196237A Expired - Fee Related CN1070449C (en) | 1996-07-09 | 1997-06-24 | A packaging container intended for the cold storage of liquid foods in ice or water |
Country Status (6)
| Country | Link |
|---|---|
| KR (1) | KR100433806B1 (en) |
| CN (1) | CN1070449C (en) |
| AU (1) | AU3562097A (en) |
| BR (1) | BR9710221A (en) |
| SE (1) | SE507094C3 (en) |
| WO (1) | WO1998001359A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE542797T1 (en) | 1998-04-09 | 2012-02-15 | Meiji Seika Pharma Co Ltd | AMINOPIPERIDINE DERIVATIVES AS INTEGRIN ALPHA V BETA 3 ANTAGONISTS |
| US6739274B2 (en) * | 2001-04-11 | 2004-05-25 | Albany International Corp. | End portions for a flexible fluid containment vessel and a method of making the same |
| FI117622B (en) * | 2001-07-13 | 2006-12-29 | Stora Enso Oyj | Polymer-coated heat sealable packaging material, its manufacturing method and its use in sealed packaging |
| SE526512C2 (en) * | 2002-11-13 | 2005-09-27 | Tetra Laval Holdings & Finance | Transparent plastic laminated packaging laminate with gas barrier |
| KR100923114B1 (en) * | 2008-09-10 | 2009-10-22 | 기동서 | The portable multipurpose case whose keeping heat and keeping cool and heating and cooling are possible |
| CN102848660A (en) * | 2012-08-30 | 2013-01-02 | 苏州九鼎珍珠棉有限公司 | Composite embossed non-woven fabric |
| CN103407650B (en) * | 2013-07-16 | 2015-10-28 | 达成包装制品（苏州）有限公司 | Waxing aquatic products carton and preparation technology thereof |
| US11453517B2 (en) | 2014-05-08 | 2022-09-27 | Ifoodbag Ab | Grocery transport packaging system |
| CN106458371B (en) | 2014-05-08 | 2019-10-11 | 艾福德柏格公司 | Groceries transport packaging system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01222920A (en) * | 1988-03-02 | 1989-09-06 | Showa Denko Kk | Method for manufacturing co-extruded laminate article |
| JPH0490343A (en) * | 1990-08-03 | 1992-03-24 | Toppan Printing Co Ltd | Water-proof paper case and material therefor |
| JPH054638A (en) * | 1991-06-28 | 1993-01-14 | Toppan Printing Co Ltd | Paper board-made closed square container |
-
1996
- 1996-07-09 SE SE9602717A patent/SE507094C3/en not_active IP Right Cessation
-
1997
- 1997-06-24 CN CN97196237A patent/CN1070449C/en not_active Expired - Fee Related
- 1997-06-24 KR KR10-1999-7000044A patent/KR100433806B1/en not_active IP Right Cessation
- 1997-06-24 WO PCT/SE1997/001133 patent/WO1998001359A1/en active IP Right Grant
- 1997-06-24 BR BR9710221A patent/BR9710221A/en not_active IP Right Cessation
- 1997-06-24 AU AU35620/97A patent/AU3562097A/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01222920A (en) * | 1988-03-02 | 1989-09-06 | Showa Denko Kk | Method for manufacturing co-extruded laminate article |
| JPH0490343A (en) * | 1990-08-03 | 1992-03-24 | Toppan Printing Co Ltd | Water-proof paper case and material therefor |
| JPH054638A (en) * | 1991-06-28 | 1993-01-14 | Toppan Printing Co Ltd | Paper board-made closed square container |
Also Published As
| Publication number | Publication date |
|---|---|
| SE9602717L (en) | 1998-01-10 |
| WO1998001359A1 (en) | 1998-01-15 |
| AU3562097A (en) | 1998-02-02 |
| BR9710221A (en) | 1999-08-10 |
| SE507094C2 (en) | 1998-03-30 |
| KR100433806B1 (en) | 2004-06-04 |
| CN1225064A (en) | 1999-08-04 |
| SE9602717D0 (en) | 1996-07-09 |
| SE507094C3 (en) | 1998-04-27 |
| KR20000023598A (en) | 2000-04-25 |
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