EP1877478B1 - Active package with preservative action - Google Patents
Active package with preservative action Download PDFInfo
- Publication number
- EP1877478B1 EP1877478B1 EP06754762.0A EP06754762A EP1877478B1 EP 1877478 B1 EP1877478 B1 EP 1877478B1 EP 06754762 A EP06754762 A EP 06754762A EP 1877478 B1 EP1877478 B1 EP 1877478B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- active package
- mixture
- package
- acid
- silicates
- 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.)
- Active
Links
- 230000002335 preservative effect Effects 0.000 title claims description 19
- 239000000654 additive Substances 0.000 claims description 27
- 230000000996 additive effect Effects 0.000 claims description 25
- 235000013305 food Nutrition 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 18
- 239000003755 preservative agent Substances 0.000 claims description 13
- -1 polyethylene Polymers 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 150000004760 silicates Chemical class 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 235000011054 acetic acid Nutrition 0.000 claims description 3
- 235000010323 ascorbic acid Nutrition 0.000 claims description 3
- 239000011668 ascorbic acid Substances 0.000 claims description 3
- 229960005070 ascorbic acid Drugs 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 claims description 3
- 239000004310 lactic acid Substances 0.000 claims description 3
- 235000014655 lactic acid Nutrition 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 3
- 239000004334 sorbic acid Substances 0.000 claims description 3
- 235000010199 sorbic acid Nutrition 0.000 claims description 3
- 229940075582 sorbic acid Drugs 0.000 claims description 3
- 235000015165 citric acid Nutrition 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 239000002778 food additive Substances 0.000 claims 1
- 235000013373 food additive Nutrition 0.000 claims 1
- 239000010408 film Substances 0.000 description 10
- 230000006870 function Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 240000002129 Malva sylvestris Species 0.000 description 1
- 235000006770 Malva sylvestris Nutrition 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- OSVXSBDYLRYLIG-UHFFFAOYSA-N chlorine dioxide Inorganic materials O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000008259 solid foam Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Images
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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/28—Applications of food preservatives, fungicides, pesticides or animal repellants
Definitions
- the present invention concerns an active package with a preservative action upon contact for the industrial, artisan and domestic packaging of foodstuffs, fresh or otherwise, vegetables, fruit, plants, flowers or any other product which can be perishable in a short time if not correctly preserved.
- the atmosphere inside a wrapping is continually modified, due to the gases and the humidity produced by the metabolic processes, and due to the different permeability of the materials used in the package. It is often necessary to have recourse to multilayer coverings, since they have good barrier characteristics and other properties fundamental for food use, such as biocompatibility and weldability.
- the function of the active package is to interact with the internal atmosphere, varying the composition thereof, and/or with the product, releasing or capturing components in order to maintain the quality for a longer time. Moreover, thanks to the presence of an indicator, the active package "tells" the consumer the heat history of the product and therefore the current level of quality.
- Such solutions are particularly interesting for the preservation of fresh products or with minimal processing, as in the case of the above-mentioned theory of obstacles.
- the residual oxygen in the packaging due to the effect of the chemical removal effected by the absorber, has been estimated in the range of 0.01%, much less than the value obtainable with other technologies.
- Another known solution provides to use a package that provides to release a wide-spectrum biocide (ClO 2 ), also active in very low concentrations (in the order of some parts per million).
- the purpose of the invention is therefore to achieve an active package of the degradable and completely recyclable type which can on the one hand ensure an extension of the useful life of the packaged product, guaranteeing that the organoleptic, visual and taste characteristics of the product are maintained, and on the other hand to obtain an active package that can be produced with limited costs and having an aesthetic and tactile appearance similar to that of normal products currently available.
- the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain other advantages.
- an active package with preservative action consists of a film, a strip or a tube (hereafter we shall speak mainly of a film, but this shall include a strip or a tube), made starting from a mixture comprising at least a certain quantity of a polyethylene or polypropylene, charged with at least a support additive component suitable both to increase the consistency and resistance of the polyethylene or polypropylene, and also to provide it with a desired aesthetic and tactile appearance, for example similar to paper.
- the support additive component is selected from a group consisting of CaCO 3 , zeolites and silicates.
- the mixture that forms the film, strip or tube further comprises at least a food type additive, with preservative capacities, in particular but not only anti-oxidizing capacities.
- the food type additive with preservative capacities is of the organic type.
- the food type additive with preservative capacities is chosen between one or more of the following elements: ascorbic acid, acetic acid, sorbic acid, propionic acid, lactic acid, citric acid or the salts thereof, or a mixture of two or more thereof.
- the food type additive with preservative capacities comprises a mixture of two or more of the above acids.
- the food type additive with preservative capacities comprises a salt of one or another of the acids listed above, a combination of the salts of two or more of the acids listed above or a combination of one or more of the salts of the acids listed above and one or more of the acids themselves.
- the additive component that functions as a support for the polymeric material consists of CaCO 3 .
- the additive component that functions as a support consists of zeolites, which can completely or partly replace the CaCO 3 .
- zeolytes as a support component for the polymeric material amplifies the preservative capacities of the food type additive. This is because the particles of the additive are incorporated with and grip onto the particles of zeolite, greatly reducing the migration and dispersion into the atmosphere thereof, and promoting their release towards the product to be preserved.
- the additive component that functions as a support consists of silicates, for example natural silicates such as clay or sand, or artificial silicates such as glass or a compound comparable to glass.
- the food type additive with preservative capacities can be introduced both before the formation of the compound, consisting of the polymer mixed with the support component, and also after the compound has been formed, at the moment the film is formed that makes up the package.
- titanium dioxide TiO 2
- TiO 2 titanium dioxide
- titanium dioxide can attribute a whitening effect to the active package and can provide a synergic effect in order to increase the preservative action of the package.
- the package obtained can have a preferred thickness varying from 1 ⁇ m to 10000 ⁇ m according to the application in which it is used.
- the package according to the invention can be used in the form of a thin film, up to 80 ⁇ m, and made in a roll so as to wrap fresh foodstuffs such as cold cuts of meat, cheeses, vegetables or suchlike; or in thicker films or strips made in sheets so as to wrap flowers, plants, soil, or other similar material; or again in films, strips or tubes of a greater thickness, 300-10000 ⁇ m to make pots, bags or containers, for example intended for freezing processes or the simple transport of perishable goods.
- the package can be obtained by means of expansion (solid foam), reaching thicknesses even much greater (from some millimeters to some centimeters).
- the attached figure shows, simply as an example, a cut-away view of an active package with preservative action according to the present invention.
- the reference number 10 denotes a plastic film produced according to the teaching of the present invention starting from a mixture that has, as its main components, a polyethylene, for example high, medium or low density polyethylene, or a polypropylene, and a support additive component, such as CaCO 3 or preferably zeolites, or again, silicates such as clays or glass.
- a polyethylene for example high, medium or low density polyethylene, or a polypropylene
- a support additive component such as CaCO 3 or preferably zeolites, or again, silicates such as clays or glass.
- the reference number 11 denotes the particles of zeolites distributed on the surface and on the thickness of the plastic film 10.
- the reference number 12 denotes the particles of a food type additive with preservative capacities introduced into the mixture with which the plastic film 10 is formed.
- the food type additive can advantageously be ascorbic acid, or one of its salts, or citric acid, or one of its salts, or propionic acid or one of its salts, or a combination of two or more of these.
- the food type additive can be acetic acid, or one of its salts, sorbic acid, or one of its salts, lactic acid, or one of its salts, or a combination of two or more of these.
- the particles of food type additive 12 which anchor and are supported by the particles of support additive component 11 develop their preservative function better and in a more extensive manner, since their tendency to migrate and disperse in the atmosphere is reduced.
- one embodiment of the invention may provide to add titanium dioxide to the mixture, to a quantity comprised between 0.1 and 20% in weight, advantageously between 1 and 10% in weight of the overall weight of the mixture.
Description
- The present invention concerns an active package with a preservative action upon contact for the industrial, artisan and domestic packaging of foodstuffs, fresh or otherwise, vegetables, fruit, plants, flowers or any other product which can be perishable in a short time if not correctly preserved.
- In the technology of packing materials, particularly in the field of packing food products, the need to provide a wrapping which is suitable to prolong, by at least some days, the sensorial characteristics of the wrapped food is becoming more and more urgent.
- To be more exact, there is a need to achieve food safety by respecting as far as possible the nutritional and organoleptic contents of the packaged product.
- To obtain this result, technological solutions have been developed suitable to create a series of obstacles to the survival and multiplication of microbes, acting for example on temperature, pH, modified atmosphere, drying and lyophilization, preservatives (additives).
- The nature of said obstacles, their number and also their entity are decisive not only in determining the survival and multiplication of microbes, but also in controlling some chemical and enzymatic reactions of a modifying nature.
- The study and development of a wrapping able to reduce to a minimum the modifications of the food in the course of preservation, and hence able to extend the duration of said food or, at times, simply to allow the food to have a better presentation (unchanged color, less greasiness, etc.), come within this framework.
- During the preservation, the atmosphere inside a wrapping is continually modified, due to the gases and the humidity produced by the metabolic processes, and due to the different permeability of the materials used in the package. It is often necessary to have recourse to multilayer coverings, since they have good barrier characteristics and other properties fundamental for food use, such as biocompatibility and weldability.
- There are many solutions known in the state of the art which provide to modify the atmosphere which surrounds the foodstuff in order to improve its preservation. Traditional technologies involve the use of controlled atmospheres (which concern the preservation of the foodstuffs or their transportation, in conditioned cells, where the atmosphere can be closely controlled), and the technology of packaging in a modified or protective atmosphere (MAP), which concerns the individual packing.
- In this last case, the natural atmosphere is replaced by mixtures of gases, mainly but not only oxygen, nitrogen and carbon dioxide. Some more recent solutions, on the contrary, refer to a so-called "functional package", or "active package".
- The function of the active package is to interact with the internal atmosphere, varying the composition thereof, and/or with the product, releasing or capturing components in order to maintain the quality for a longer time. Moreover, thanks to the presence of an indicator, the active package "tells" the consumer the heat history of the product and therefore the current level of quality. Such solutions are particularly interesting for the preservation of fresh products or with minimal processing, as in the case of the above-mentioned theory of obstacles.
- The functions performed by the active packages, and the relative applications, are mainly as follows:
- to capture oxygen (for most foodstuffs);
- to produce carbon dioxide (for most foodstuffs that can be attacked by molds);
- to remove water vapor (for dry foodstuffs that can be attacked by molds);
- to remove ethylene (for fruit and vegetables);
- to release ethanol (for oven products, where allowed, such as tin loaves).
- The residual oxygen in the packaging, due to the effect of the chemical removal effected by the absorber, has been estimated in the range of 0.01%, much less than the value obtainable with other technologies.
- Another known solution provides to use a package that provides to release a wide-spectrum biocide (ClO2), also active in very low concentrations (in the order of some parts per million).
- However, the need has arisen in the field to replace high barrier synthetic packages by means of the synergic use of an active wrapper which covers the foodstuffs, partly limiting the exchanges with the outside environment and without modifying the packaging atmosphere.
- In this way, apart from the numerous advantages already explained, the use of degradable active films also brings advantages in the direction of a greater attention for environmental respect.
- The purpose of the invention is therefore to achieve an active package of the degradable and completely recyclable type which can on the one hand ensure an extension of the useful life of the packaged product, guaranteeing that the organoleptic, visual and taste characteristics of the product are maintained, and on the other hand to obtain an active package that can be produced with limited costs and having an aesthetic and tactile appearance similar to that of normal products currently available.
- The Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain other advantages.
- The present invention is set forth and characterized essentially in the main claim, while the dependent claims describe other innovative characteristics of the invention.
- In accordance with this purpose, an active package with preservative action according to the present invention consists of a film, a strip or a tube (hereafter we shall speak mainly of a film, but this shall include a strip or a tube), made starting from a mixture comprising at least a certain quantity of a polyethylene or polypropylene, charged with at least a support additive component suitable both to increase the consistency and resistance of the polyethylene or polypropylene, and also to provide it with a desired aesthetic and tactile appearance, for example similar to paper.
- According to the invention, the support additive component is selected from a group consisting of CaCO3, zeolites and silicates.
- In a known manner, other components usual in the field of packaging may be added to the mixture, such as for example talc, sliding agents, anti-blocks, powdery or adsorbent inert materials, possible colored pigments or other.
- According to a characteristic feature of the invention, the mixture that forms the film, strip or tube, further comprises at least a food type additive, with preservative capacities, in particular but not only anti-oxidizing capacities.
- The food type additive with preservative capacities is of the organic type.
- According to the invention, the food type additive with preservative capacities is chosen between one or more of the following elements: ascorbic acid, acetic acid, sorbic acid, propionic acid, lactic acid, citric acid or the salts thereof, or a mixture of two or more thereof.
- According to a variant, the food type additive with preservative capacities comprises a mixture of two or more of the above acids.
- According to another variant, the food type additive with preservative capacities comprises a salt of one or another of the acids listed above, a combination of the salts of two or more of the acids listed above or a combination of one or more of the salts of the acids listed above and one or more of the acids themselves.
- The presence of a food type additive with preservative capacities, distributed in the mixture which makes up the film used for the package, provides the film itself with the property of limiting the oxidation, and in general the alteration of the product due to contact and reaction with the packaged product, at the same time ensuring that the characteristics of color, flavor and relative humidity of the product are maintained.
- The presence of particles of a food type additive, distributed as uniformly as possible on the surface of the film used for the package, ensures a contact, and hence a reaction, which are distributed over a large surface of the product, so that no areas are created with a different level of deterioration from others.
- According to a first embodiment of the invention, the additive component that functions as a support for the polymeric material consists of CaCO3.
- According to an advantageous variant, the additive component that functions as a support consists of zeolites, which can completely or partly replace the CaCO3.
- The presence of zeolytes as a support component for the polymeric material amplifies the preservative capacities of the food type additive. This is because the particles of the additive are incorporated with and grip onto the particles of zeolite, greatly reducing the migration and dispersion into the atmosphere thereof, and promoting their release towards the product to be preserved.
- According to another variant, the additive component that functions as a support consists of silicates, for example natural silicates such as clay or sand, or artificial silicates such as glass or a compound comparable to glass.
- Within the framework of the production process, the food type additive with preservative capacities can be introduced both before the formation of the compound, consisting of the polymer mixed with the support component, and also after the compound has been formed, at the moment the film is formed that makes up the package.
- In order to form the active package with preservative action it is possible to use the following quantities:
- 20-80% in weight of polymeric material;
- 20-80% in weight of support component;
- from 1 ppm to 10% in weight of food type additive;
- 0-10% of other additives such as talc, an expander agent or other.
- According to another variant embodiment, titanium dioxide (TiO2) is added to the compound, to a percentage comprised between 0.1 and 20% in weight, advantageously between 1 and 10% in weight of the overall weight of the mixture.
- The addition of titanium dioxide can attribute a whitening effect to the active package and can provide a synergic effect in order to increase the preservative action of the package.
- The package obtained can have a preferred thickness varying from 1 µm to 10000 µm according to the application in which it is used.
- The package according to the invention can be used in the form of a thin film, up to 80 µm, and made in a roll so as to wrap fresh foodstuffs such as cold cuts of meat, cheeses, vegetables or suchlike; or in thicker films or strips made in sheets so as to wrap flowers, plants, soil, or other similar material; or again in films, strips or tubes of a greater thickness, 300-10000 µm to make pots, bags or containers, for example intended for freezing processes or the simple transport of perishable goods.
- According to another variant, the package can be obtained by means of expansion (solid foam), reaching thicknesses even much greater (from some millimeters to some centimeters).
- The attached figure shows, simply as an example, a cut-away view of an active package with preservative action according to the present invention.
- The
reference number 10 denotes a plastic film produced according to the teaching of the present invention starting from a mixture that has, as its main components, a polyethylene, for example high, medium or low density polyethylene, or a polypropylene, and a support additive component, such as CaCO3 or preferably zeolites, or again, silicates such as clays or glass. - The
reference number 11 denotes the particles of zeolites distributed on the surface and on the thickness of theplastic film 10. - The
reference number 12 denotes the particles of a food type additive with preservative capacities introduced into the mixture with which theplastic film 10 is formed. - The food type additive can advantageously be ascorbic acid, or one of its salts, or citric acid, or one of its salts, or propionic acid or one of its salts, or a combination of two or more of these.
- In other embodiments of the invention, the food type additive can be acetic acid, or one of its salts, sorbic acid, or one of its salts, lactic acid, or one of its salts, or a combination of two or more of these.
- The particles of
food type additive 12 which anchor and are supported by the particles ofsupport additive component 11 develop their preservative function better and in a more extensive manner, since their tendency to migrate and disperse in the atmosphere is reduced. - It is clear, however, that modifications and/or additions of parts may be made to the active package with preservative function as described heretofore.
- For example, one embodiment of the invention may provide to add titanium dioxide to the mixture, to a quantity comprised between 0.1 and 20% in weight, advantageously between 1 and 10% in weight of the overall weight of the mixture.
Claims (7)
- Active package with preservative action consisting of a film, strip or tube made starting from a mixture comprising at least a certain quantity of a polyethylene or polypropylene, charged with at least a support additive component suitable both to increase the consistency and resistance of the polyethylene or polypropylene, and also to provide it with a desired aesthetic and tactile appearance, said support additive being selected from a group consisting of CaCO3, zeolites (11) and silicates, the mixture which forms the film, strip or tube, further comprising at least a food type additive (12), with preservative capacities, said food additive (12) being chosen between one or more of the following elements: ascorbic acid, acetic acid, sorbic acid, propionic acid, lactic acid, citric acid or the salts thereof, or a mixture of two or more thereof.
- Active package as in claim 1, characterized in that said silicates comprise natural silicates such as clays or sand, or artificial silicates such as glass.
- Active package as in claim 1, characterized in that it further comprises titanium dioxide (TiO2).
- Active package as in claim 3, characterized in that the titanium dioxide (TiO2) is comprised between 0.1 and 20% in weight of the overall weight of the mixture.
- Active package as in claims 3 or 4, characterized in that the titanium dioxide (TiO2) is comprised between 1 and 10% in weight of the overall weight of the mixture.
- Active package as in claim 1, characterized in that it has a thickness varying from 1 µm to 10000 µm.
- Active package as in claim 1, characterized in that it also comprises an expander agent.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000069A ITUD20050069A1 (en) | 2005-04-26 | 2005-04-26 | ACTIVE PACKAGING FOR CONSERVATIVE ACTION |
PCT/EP2006/061703 WO2006114385A1 (en) | 2005-04-26 | 2006-04-20 | Active package with preservative action |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1877478A1 EP1877478A1 (en) | 2008-01-16 |
EP1877478B1 true EP1877478B1 (en) | 2015-11-11 |
Family
ID=36716641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06754762.0A Active EP1877478B1 (en) | 2005-04-26 | 2006-04-20 | Active package with preservative action |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080190999A1 (en) |
EP (1) | EP1877478B1 (en) |
CA (1) | CA2609964A1 (en) |
ES (1) | ES2561583T3 (en) |
IT (1) | ITUD20050069A1 (en) |
WO (1) | WO2006114385A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1391965B1 (en) * | 2008-08-08 | 2012-02-02 | Univ Degli Studi Salerno | POLYMERIC MATERIALS FOR OBTAINING ACTIVE FOOD PACKAGES ABLE TO PROTECT AND ENHANCE THE FOODS CONTAINED AND TO REDUCE THE TREATMENTS FOR THE CONSERVATION OF THEMSELVES. |
US20120128836A1 (en) | 2010-11-23 | 2012-05-24 | Flavorseal Llc | Pre-coated seasoning bags |
CN107001756B (en) * | 2014-12-24 | 2021-03-16 | 株式会社可乐丽 | Polymethallyl alcohol resin composition and molded article using same |
GB201423348D0 (en) * | 2014-12-30 | 2015-02-11 | Imerys Minerals Ltd | Substates having a functional Capability |
RO130496B1 (en) * | 2015-04-08 | 2022-08-30 | Universitatea Tehnică Din Cluj-Napoca | Processes for producing a food package made of nanostructured materials |
CA2999170A1 (en) | 2015-09-21 | 2017-03-30 | Flavorseal Llc | Coated packaging products, systems and methods |
KR102205266B1 (en) * | 2018-12-28 | 2021-01-20 | 고려대학교 산학협력단 | CHA Zeolite Membranes and Method of Preparing the Same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5011006A (en) * | 1989-10-06 | 1991-04-30 | General Mills, Inc. | Container with lid closure having an improved flared stand feature |
FR2694011B1 (en) * | 1992-07-21 | 1994-09-30 | Oreal | Synthetic polymeric material having an antiseptic and / or antioxidant action and method of manufacturing said material. |
DE19532489C2 (en) * | 1995-09-02 | 2002-06-20 | Feinchemie Gmbh Sebnitz | Antimicrobial packaging material and process for its manufacture |
US5977212A (en) * | 1997-11-21 | 1999-11-02 | W. R. Grace & Co.-Conn. | Oxygen scavenging compositions |
US6500519B2 (en) * | 2000-06-19 | 2002-12-31 | Toyo Seikan Kaisha, Ltd. | Oxygen absorbable laminate and production method thereof |
JP3844335B2 (en) * | 2001-10-01 | 2006-11-08 | 日本製紙株式会社 | Molded product formed by molding biodegradable resin composition |
AU2003253682A1 (en) * | 2002-06-24 | 2004-01-06 | The Procter And Gamble Company | Food package |
-
2005
- 2005-04-26 IT IT000069A patent/ITUD20050069A1/en unknown
-
2006
- 2006-04-20 WO PCT/EP2006/061703 patent/WO2006114385A1/en not_active Application Discontinuation
- 2006-04-20 EP EP06754762.0A patent/EP1877478B1/en active Active
- 2006-04-20 US US11/912,657 patent/US20080190999A1/en not_active Abandoned
- 2006-04-20 CA CA002609964A patent/CA2609964A1/en not_active Abandoned
- 2006-04-20 ES ES06754762.0T patent/ES2561583T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
CA2609964A1 (en) | 2006-11-02 |
US20080190999A1 (en) | 2008-08-14 |
ITUD20050069A1 (en) | 2006-10-27 |
WO2006114385A1 (en) | 2006-11-02 |
ES2561583T3 (en) | 2016-02-29 |
EP1877478A1 (en) | 2008-01-16 |
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