HRP20040637A2 - A tubular element for the formation of bags for the vacuum packaging of products - Google Patents
A tubular element for the formation of bags for the vacuum packaging of products Download PDFInfo
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- HRP20040637A2 HRP20040637A2 HR20040637A HRP20040637A HRP20040637A2 HR P20040637 A2 HRP20040637 A2 HR P20040637A2 HR 20040637 A HR20040637 A HR 20040637A HR P20040637 A HRP20040637 A HR P20040637A HR P20040637 A2 HRP20040637 A2 HR P20040637A2
- Authority
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- Croatia
- Prior art keywords
- tubular element
- walls
- accordance
- protrusions
- impermeable
- Prior art date
Links
- 238000009461 vacuum packaging Methods 0.000 title claims description 8
- 230000015572 biosynthetic process Effects 0.000 title description 3
- 239000011888 foil Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 8
- 235000013305 food Nutrition 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims description 2
- 210000002445 nipple Anatomy 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 3
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/01—Ventilation or drainage of bags
-
- 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
- B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2007—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
- B65D81/2023—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Bag Frames (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Description
Predmet ovog izuma je cjevasti element za vrećice za vakuumsko pakiranje proizvoda, osobito lako pokvarljivih prehrambenih proizvoda, koje su nepropusne i koje se mogu zaptivati vrućim postupkom. The subject of this invention is a tubular element for bags for vacuum packaging of products, especially perishable food products, which are impermeable and can be sealed by a hot process.
Za gore spomenutu namjenu poznati su gotovi, tvornički proizvedeni elementi, i formirani s jednom ili dvije stijenke od sintetskog materijala, koje su zaptivene duž uzdužnih rubova, kako bi se oblikovala neprekidna cijev iz koje se mogu formirati vrećice poprečnim rezanjem i zatvaranjem dotičnih otvora zavarivanjem. For the above-mentioned purpose, ready-made, factory-produced elements are known, and formed with one or two walls of synthetic material, which are sealed along the longitudinal edges, to form a continuous tube from which bags can be formed by transverse cutting and closing the respective openings by welding.
Budući da do danas nisu poznati sintetski materijali koji su nepropusni za plinove, a koji se istodobno mogu vruće zaptivati, a također su pogodni za dodir s hranom, stijenke se formiraju od dva međusobno tijesno povezana sloja, položena jedan iznad drugog, od kojih je vanjski sloj nepropustan za plinove, a unutarnji sloj je pogodan za dodir s hranom, te se može vruće zaptivati. Since no gas-impermeable synthetic materials, which can be heat-sealed and suitable for contact with food, are known to date, the walls are formed from two closely connected layers, laid one above the other, of which the outer layer impermeable to gases, and the inner layer is suitable for contact with food, and can be heat sealed.
Da bi se stijenke zaštitile od kidanja oko proizvoda tijekom vakuumiranja vrećice, uz slijedeće formiranje izoliranih, nevakuumiranih područja, unutarnja površina barem jedne od stijenki ima ispupčenja ili izbočine koje definiraju izlazne kanale duž kojih se zrak izvlači iz izoliranih područja. In order to protect the walls from tearing around the product during vacuuming of the bag, in addition to the subsequent formation of isolated, non-vacuum areas, the inner surface of at least one of the walls has protrusions or protrusions that define exit channels along which air is drawn from the isolated areas.
Međutim, ovo rješenje zahtijeva veći utrošak materijala, budući da stijenke imaju neujednačenu debljinu, a njihova je čvrstoća ponajprije određena najslabijim dijelovima. However, this solution requires a higher consumption of material, since the walls have an uneven thickness, and their strength is primarily determined by the weakest parts.
U EP 0216327, opisuje se vrećica kod koje su izlazni kanali formirani ispupčenjima i utorima napravljenim oblikovanjem ova dva sloja zajedno, ili ispupčivanjem unutarnjeg sloja i nakon toga spajanjem ova dva sloja po cijeloj njihovoj površini. In EP 0216327, a bag is described in which the outlet channels are formed by ridges and grooves made by molding these two layers together, or by bulging the inner layer and then joining these two layers over their entire surface.
I oblikovanje obadva sloja zajedno, kao i spajanje glatkog sloja i ispupčenog sloja po cijeloj njihovoj površini, predstavljaju operacije koje su teške i zbog toga skupe, pri čemu između dva sloja mogu nastati zračne inkluzije. Nakon vakuumiranja vrećice, zrak iz inkluzija prolazi kroz unutarnji sloj i pospješuje kvarenje proizvoda. Both the shaping of both layers together, as well as the joining of the smooth layer and the raised layer over their entire surface, represent operations that are difficult and therefore expensive, whereby air inclusions can form between the two layers. After vacuuming the bag, the air from the inclusions passes through the inner layer and accelerates the spoilage of the product.
U EP 0648688 opisuje se alternativno rješenje, u kojem je mnoštvo paralelnih elemenata, nalik nitima, združeno s unutarnjom stranom dvoslojne stijenke, pri čemu se kanali za odvod zraka definiraju između elemenata nalik nitima. In EP 0648688, an alternative solution is described, in which a plurality of parallel, thread-like elements are joined to the inner side of the double-layer wall, whereby air drainage channels are defined between the thread-like elements.
Međutim, prednost dvoslojnih stijenki, koje su početno glatke i zato jeftine, se poništava zbog poteškoća u namještanju i fiksiranju elemenata nalik nitima na površinu. Element nalik niti koji je greškom postavljen poprijeko, može stvoriti zapreku isisavanju, što vrećicu čini neupotrebljivom. However, the advantage of double-layered walls, which are initially smooth and therefore cheap, is canceled out by the difficulty in fitting and fixing thread-like elements to the surface. A string-like element that is mistakenly placed across can create an obstruction to suction, rendering the bag unusable.
U EP 0749912 opisuje se vrećica u kojoj su elementi nalik nitima zamijenjeni perforiranom folijom koja dijeli vrećicu u dvije komore, od kojih jedna sadržava proizvod, a druga predstavlja isisnu komoru. Tijekom stvaranja vakuuma, zrak iz komore koja sadržava proizvod prolazi kroz perforacije na foliji u drugu komoru, a od tamo u vanjski prostor. EP 0749912 describes a bag in which the thread-like elements are replaced by a perforated foil that divides the bag into two chambers, one containing the product and the other a suction chamber. During the creation of a vacuum, the air from the chamber containing the product passes through the perforations on the foil into another chamber, and from there into the outside space.
Pored velikog otpora isisavanju koji stvara perforirana folija, sustav iz EP 0749912 ima osim toga nedostatak, da tijekom vakuumiranja, dio pakiranog proizvoda, na primjer mesni sokovi, prolazi kroz perforacije, sprječavajući potpuno vakuumiranje i dajući pakiranju zaprljani izgled. In addition to the high suction resistance created by the perforated film, the system from EP 0749912 also has the disadvantage that during vacuuming, part of the packaged product, for example meat juices, passes through the perforations, preventing complete vacuuming and giving the package a dirty appearance.
Osim posebnih nedostataka svakog od rješenja prema stanju tehnike, koja su gore opisana, sve poznate vrećice za vakuumsko pakiranje lako pokvarljivih proizvoda, osobito prehrambenih proizvoda, imaju nedostatak da se u njima ne može držati nekoliko različitih proizvoda. U stvari, tijekom stvaranja vakuuma, različiti proizvodi, pakirani zajedno, onečistili bi jedan drugoga, ili bi etikete i ilustrativni listovi unutar pakiranja bili, na primjer, zaprljani supstancama koje cure iz proizvoda, posebno mesnim sokovima. Apart from the specific disadvantages of each of the solutions according to the state of the art, which are described above, all known bags for vacuum packaging perishable products, especially food products, have the disadvantage that several different products cannot be kept in them. In fact, during the creation of a vacuum, different products, packed together, would contaminate each other, or the labels and illustrative sheets inside the package would be, for example, soiled by substances leaking from the product, especially meat juices.
Konačno, zbog svoje gipkosti, stijenke pod učinkom vakuuma teže da se saviju i usljed toga začepe izlazne kanale. Svi postojeći sustavi nastoje spriječiti ovaj problem ograničavanjem razmaka između izbočina, te pojačavanjem stijenki i izbočina, što dovodi do prekomjernog utroška materijala, ali bez postizanja zadovoljavajućih rezultata. Finally, due to their flexibility, the walls tend to bend under the effect of vacuum and consequently block the exit channels. All existing systems try to prevent this problem by limiting the distance between the protrusions, and by reinforcing the walls and protrusions, which leads to excessive material consumption, but without achieving satisfactory results.
Dakle, cilj je ovog izuma da se dobije sustav vakuumskog pakiranja proizvoda s takvim svojstvima, kojima će se prevladati spomenuti nedostaci s obzirom na stanje tehnike. Therefore, the goal of this invention is to obtain a vacuum packaging system for products with such properties, which will overcome the mentioned shortcomings with regard to the state of the art.
Ovaj i drugi ciljevi postižu se pomoću cjevastog elementa za formiranje vrećica prema patentnom zahtjevu 1, a isto tako i vrećicom proizvedenom pomoću ovog cjevastog elementa. This and other objectives are achieved by means of a tubular element for forming bags according to patent claim 1, and also by a bag produced by means of this tubular element.
Radi boljeg razumijevanja izuma, njegova izvedba će se opisati niže, putem primjera koji nije ograničavajući, s obzirom na priložene crteže, u kojima: For a better understanding of the invention, its implementation will be described below, by means of a non-limiting example, with reference to the attached drawings, in which:
Slika 1 prikazuje u presjeku cjevasti element za formiranje vrećice prema izumu. Figure 1 shows a section of a tubular element for forming a bag according to the invention.
Slika 2 je uvećani izgled detalja II iz Slike 1, Figure 2 is an enlarged view of detail II from Figure 1,
Slika 3 je presječeni djelomični izgled izvedbe iz izuma, Figure 3 is a sectional partial view of an embodiment of the invention,
Slike 4a do 4e prikazuju moguće izvedbe dijela cjevastog elementa, s pogledom odozgo i u presjeku, Figures 4a to 4e show possible versions of a part of the tubular element, with a top view and in section,
Slike 5 i 6 prikazuju u presjeku daljnje izvedbe izuma, Figures 5 and 6 show in section further embodiments of the invention,
Slika 7 prikazuje mogući postupak vakuumiranja i zatvaranja vrećice, proizvedene pomoću cjevastog elementa iz Slike 1, Figure 7 shows a possible process of vacuuming and closing the bag, produced using the tubular element from Figure 1,
Slika 8 je shematski prikaz ponašanja strukture vrećice u skladu s izumom, te vrećice iz stanja tehnike, pod učinkom vakuuma, Figure 8 is a schematic representation of the behavior of the structure of the bag according to the invention, and the bag from the state of the art, under the effect of vacuum,
Slika 9 je shematski prikaz izmjene zraka sadržanog u vrećici prema izumu. Figure 9 is a schematic representation of the exchange of air contained in the bag according to the invention.
Cjevasti element za formiranje vrećica za pakiranje proizvoda, općenito označen s 1, formira se od dvije neprekidne folije ili trake koje čine stijenke 2, te od neprekidne folije ili trake koja čini razdjelnu foliju 3 umetnutu između stijenki 2, koje stijenke 2 i razdjelna folija 3 su spojene po uzdužnim rubovima 4, na primjer zavarivanjem, kako bi se formiralo cjevasto tijelo s dvije komore 5 i 5’. U skladu s izumom, svaka od komora 5 i 5’ je barem djelomično omeđena razdjelnom folijom 3. A tubular element for forming bags for product packaging, generally marked 1, is formed from two continuous foils or strips that form the walls 2, and from a continuous foil or strip that forms a dividing foil 3 inserted between the walls 2, which walls 2 and the dividing foil 3 are joined along the longitudinal edges 4, for example by welding, to form a tubular body with two chambers 5 and 5'. According to the invention, each of the chambers 5 and 5' is at least partially bounded by a dividing foil 3.
Kako se može vidjeti iz Slike 2, svaka stijenka 2 je sastavljena od vanjskog sloja 6 iz materijala nepropusnog za plinove, pogodno od poliestera ili poliamida, te od unutarnjeg sloja 7 iz materijala koji se može vruće zaptivati i koji je pogodan za dodir s hranom, pogodno od polietilena ili polipropilena. Vanjski i unutarnji slojevi 6 i 7 imaju ujednačenu debljinu i tijesno su spojeni jedan s drugim, kako bi formirali stijenke 2, čije su unutarnje površine 10 koje gledaju prema komorama 5, 5’, te vanjske površine 11 koje gledaju prema vani u odnosu na cjevasto tijelo, pogodno ravne i u biti glatke. As can be seen from Figure 2, each wall 2 is composed of an outer layer 6 of a gas-impermeable material, preferably polyester or polyamide, and an inner layer 7 of a heat-sealable material suitable for contact with food, preferably made of polyethylene or polypropylene. The outer and inner layers 6 and 7 have a uniform thickness and are closely connected to each other to form the walls 2, whose inner surfaces 10 facing the chambers 5, 5' and outer surfaces 11 facing the outside of the tubular body, conveniently flat and essentially smooth.
Razdjelna folija 3, koja je također napravljena od materijala koji se može vruće zaptivati i koji je pogodan za dodir s hranom, sastoji se od neprekidnog središnjeg sloja 12, u biti nepropusnog za tekućine, iz kojeg se pružaju ispupčenja 8 u obje komore 5 i 5’. Ispupčenja 8 mogu prianjati uz pakirane proizvode 17 i zajedno s područjima 13 ploha središnjeg sloja 12, definiraju sustav isisnih kanala 9. The separation film 3, which is also made of a heat-sealable material suitable for contact with food, consists of a continuous central layer 12, essentially impermeable to liquids, from which projections 8 extend into both chambers 5 and 5 '. The protrusions 8 can adhere to the packaged products 17 and, together with the areas 13 of the surface of the central layer 12, define a system of suction channels 9.
Ispupčenja 8 su pogodno raspoređena na takav način, da se područja 13 jedne plohe središnjeg sloja 12 barem djelomično preklapaju s područjima 13 njegove druge plohe. The protrusions 8 are conveniently arranged in such a way that the areas 13 of one surface of the central layer 12 overlap at least partially with the areas 13 of its other surface.
Slika 3 prikazuje vrlo pogodnu izvedbu u kojoj se položaji ispupčenja 8 na prednjoj strani razdjelnog sloja 3 točno podudaraju s onim od ispupčenja 8 na njegovoj stražnjoj strani. Figure 3 shows a very convenient embodiment in which the positions of the protrusions 8 on the front side of the separation layer 3 exactly coincide with those of the protrusions 8 on its rear side.
Ispupčenja 8 mogu imati razne oblike i mogu biti raspoređena pravilno ili nepravilno na obje površine razdjelne folije 3, tako da definiraju jedan ili više sustava kanala 9 koji su neprekidni po dužini u odnosu na cjevasti element, te pogodno ali ne nužno, međusobno povezani. Slika 4 prikazuje primjere oblikovanja i rasporeda ispupčenja 8 koji su osobito povoljni za brzo i direktno isisavanje zraka tijekom vakuumiranja vrećice. Na slikama 4a do 4c, ispupčenja 8 su oblikovana izduljenim izbočinama koje se pružaju neprekidno ili s prekidima, u biti paralelno s uzdužnim stranama 4. Slike 4d i 4e prikazuju izvedbe u kojima su ispupčenja 8 u obliku bradavica. The protrusions 8 can have various shapes and can be distributed regularly or irregularly on both surfaces of the dividing foil 3, so that they define one or more systems of channels 9 which are continuous in length in relation to the tubular element, and conveniently, but not necessarily, connected to each other. Figure 4 shows examples of the design and arrangement of protrusions 8, which are particularly favorable for quick and direct suction of air during the vacuuming of the bag. In Figures 4a to 4c, the protrusions 8 are formed by elongated protrusions extending continuously or intermittently, substantially parallel to the longitudinal sides 4. Figures 4d and 4e show embodiments in which the protrusions 8 are in the form of nipples.
Slike 5 i 6 prikazuju daljnje izvedbe cjevastog elementa 1, koje se bitno razlikuju brojem komora 5, 5’ formiranih unutar cjevastog tijela, kao i brojem folija ili traka koje su upotrebljene za formiranje stijenki 2 i razdjelnih folija 3. Figures 5 and 6 show further versions of the tubular element 1, which differ substantially in the number of chambers 5, 5' formed inside the tubular body, as well as in the number of foils or strips used to form the walls 2 and dividing foils 3.
Slika 5 prikazuje cjevasti element 1 koji je pogodno izveden pomoću jednostruke folije za stijenku 2 i u kojemu se folija položila preko razdjelne folije 3, presavila zajedno na nju nakon poravnanja uzdužnih strana 4 i vruće zaptila uzduž ovih strana kako bi se formiralo cjevasto tijelo. Fig. 5 shows a tubular element 1 which is conveniently made using a single wall film 2 and in which the film is laid over the dividing film 3, folded together on it after aligning the longitudinal sides 4 and heat sealed along these sides to form a tubular body.
Cjevasti element 1 prikazan na slici 6 izrađen je na sličan način upotrebom četiri folije ili trake za formiranje stijenki 2, te odgovarajućeg broja folija za formiranje razdjelnih folija 3. Predfabricirani elementi 1, sastavljeni od nekoliko folija ili traka, kako za stijenke 2 tako i za razdjelne folije 3, dopuštaju pakiranje proizvoda 17 koji sadrže više od dva zasebna dijela, a isto tako i izradu vakuumskih paketa s vanjskim oblicima i izgledom koji mogu biti prilagođeni zahtjevima skladištenja, distribucije i korištenja. The tubular element 1 shown in Figure 6 is made in a similar way by using four foils or strips to form walls 2, and the corresponding number of foils to form dividing foils 3. Prefabricated elements 1, composed of several foils or strips, both for walls 2 and dividing foils 3, allow the packaging of products 17 that contain more than two separate parts, as well as the creation of vacuum packages with external shapes and appearance that can be adapted to the requirements of storage, distribution and use.
U svrhu formiranja vrećica 14 za vakuumsko pakiranje proizvoda, cjevasti se element 1 izrezuje na željenu dužinu i zatvara poprečno na prvom kraju 15, pogodno vrućim zaptivanjem. In order to form bags 14 for vacuum packaging of products, the tubular element 1 is cut to the desired length and closed transversely at the first end 15, preferably by hot sealing.
Funkcioniranje vrećice 14 izrađene pomoću cjevastog elementa 1 opisano je niže, s obzirom na Slike 7, 8 i 9. The operation of the bag 14 made using the tubular element 1 is described below, with reference to Figures 7, 8 and 9.
Nakon što se proizvodi 17 i/ili obavjesni listovi stave u komore 5, 5’, isisna mlaznica 16 se umetne u otvor formiran drugim krajem 15’ vrećice 14, tako da istodobno dosegne sve komore 5, 5’. Tijekom isisavanja zraka, tlak unutar komora 5 i 5’ pada ispod tlaka izvan vrećice 14, što dovodi do deformacije stijenki 2 prema unutrašnjosti komora 5, 5’. U sustavima stanja tehnike ova deformacija dovodi do parcijalnog ili, u ekstremnim slučajevima, do čak potpunog zatvaranja isisnih kanala, kao što se na primjer može vidjeti iz Slike 8a, rezultirajući nepotpunim vakuumiranjem vrećice. U vrećici 14 u skladu s izumom, kao što se može vidjeti iz Slike 8b, obje strane razdjelne folije 3 su pod vakuumom i, uslijed oblika i rasporeda ispupčenja 8, smanjenje tlaka na jednoj strani folije 3 dovodi do deformacije područja 13, tako da kanali 9 na drugoj strani ostaju i dalje otvorenim, i obrnuto. Nakon vakuumiranja vrećice 14, ona se zatvara uzduž drugog kraja 15’, pogodno vrućim zaptivanjem. After the products 17 and/or the wrapping sheets are placed in the chambers 5, 5', the suction nozzle 16 is inserted into the opening formed by the other end 15' of the bag 14, so that it simultaneously reaches all the chambers 5, 5'. During air suction, the pressure inside the chambers 5 and 5' falls below the pressure outside the bag 14, which leads to the deformation of the walls 2 towards the inside of the chambers 5, 5'. In prior art systems, this deformation leads to partial or, in extreme cases, even complete closure of the suction channels, as for example can be seen from Figure 8a, resulting in incomplete vacuuming of the bag. In the bag 14 according to the invention, as can be seen from Fig. 8b, both sides of the separation film 3 are under vacuum and, due to the shape and arrangement of the protrusions 8, the pressure reduction on one side of the film 3 leads to the deformation of the area 13, so that the channels 9 on the other side remain open, and vice versa. After vacuuming the bag 14, it is sealed along the other end 15', preferably by heat sealing.
Slika 9 prikazuje situaciju u vakuumiranoj i vruće zaptivenoj vrećici 14 u skladu s izumom, u kojoj se samo prva komora 5 koristi za držanje proizvoda 17. Uslijed lakog i direktnog vakuumiranja druge komore 5’, ova teži da ima tlak čak niži od tlaka u prvoj komori 5, što dovodi do učinka sekundarnog evakuiranja preostalog zraka u prvoj komori 5, difuzijom kroz razdjelnu foliju 3. Figure 9 shows the situation in the vacuum-sealed and heat-sealed bag 14 according to the invention, in which only the first chamber 5 is used to hold the product 17. Due to the easy and direct vacuuming of the second chamber 5', this one tends to have a pressure even lower than the pressure in the first chamber 5, which leads to the effect of secondary evacuation of the remaining air in the first chamber 5, by diffusion through the dividing foil 3.
Cjevasti element 1 i vrećica 14 u skladu s izumom imaju mnoge prednosti. The tubular element 1 and bag 14 according to the invention have many advantages.
U vrećici 14 može se držati nekoliko različitih proizvoda 17, bez rizika da se prenesu supstance iz jednog proizvoda u drugi. Vanjske stijenke su ravne i ujednačene debljine, te zato imaju maksimalnu čvrstoću za dati materijal koji je upotrebljen. Formiranje izlaznih kanala je funkcionalno odvojeno od funkcije čuvanja i zaštite od vanjske okoline, iz čega proizlazi da se i materijali i oblik stijenki 2 i razdjelne folije 3 mogu optimirati. Kidanje stijenki isisnih kanala 9 tijekom vakuumiranja vrećice 14 sprječava se pneumatskom stabilizacijom područja 13 kanala 9. Ako se neke od komora 5, 5’ koje su susjedne razdjelnoj foliji 3, ne koriste za držanje proizvoda 17, prazna komora, ili komore, služe kao komore za sekundarno vakuumiranje za vrijeme skladištenja vakuumiranog pakiranja. Several different products 17 can be kept in the bag 14, without the risk of transferring substances from one product to another. The outer walls are flat and of uniform thickness, and therefore have maximum strength for the given material used. The formation of exit channels is functionally separated from the function of preservation and protection from the external environment, from which it follows that both the materials and the shape of the walls 2 and the dividing foil 3 can be optimized. Tearing of the walls of the suction channels 9 during the vacuuming of the bag 14 is prevented by the pneumatic stabilization of the area 13 of the channel 9. If some of the chambers 5, 5' adjacent to the separation film 3 are not used to hold the product 17, the empty chamber or chambers serve as chambers for secondary vacuuming during the storage of vacuum packaging.
Naravno, da bi se zadovoljilo slučajne i osobite zahtjeve, stručna osoba iz odgovarajućeg područja može primijeniti daljnje modifikacije i varijacije strukturnog elementa 1 prema ovom izumu, koje su sve, međutim, uključene unutar opsega zaštite izuma, kako je definirano priloženim patentnim zahtjevima. Of course, in order to satisfy accidental and special requirements, a person skilled in the relevant field can apply further modifications and variations of the structural element 1 according to this invention, all of which are, however, included within the scope of protection of the invention, as defined by the appended patent claims.
Claims (14)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2002/000180 WO2003062089A2 (en) | 2002-01-23 | 2002-01-23 | A tubular element for the formation of bags for the vacuum packaging of products |
Publications (1)
Publication Number | Publication Date |
---|---|
HRP20040637A2 true HRP20040637A2 (en) | 2005-04-30 |
Family
ID=27590130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HR20040637A HRP20040637A2 (en) | 2002-01-23 | 2004-07-12 | A tubular element for the formation of bags for the vacuum packaging of products |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1503945A2 (en) |
JP (1) | JP2005525272A (en) |
EA (1) | EA006042B1 (en) |
HR (1) | HRP20040637A2 (en) |
RO (1) | RO125767A2 (en) |
WO (1) | WO2003062089A2 (en) |
YU (1) | YU62304A (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE931699C (en) * | 1950-11-29 | 1955-08-16 | Wilts United Dairies Ltd | Process for producing a flexible, airtight package |
US2714557A (en) * | 1954-02-17 | 1955-08-02 | Standard Packaging Corp | Vacuum packaging of food products |
IT1176180B (en) * | 1984-05-23 | 1987-08-18 | Eurodomestici Ind Riunite | METHOD FOR THE VACUUM PACKAGING OF FINALLY DIVIDED MATERIALS AND CONTAINER FOR THE IMPLEMENTATION OF THE METHOD |
IT231279Y1 (en) * | 1993-10-13 | 1999-08-02 | Abate Luigi | TUBULAR ELEMENT FOR THE FORMATION OF BAGS FOR THE PACKAGING OF VACUUM PRODUCTS |
JP2000281085A (en) * | 1999-04-01 | 2000-10-10 | Fuji Impulse Kk | Deaeration seal bag, processing sheet for deaeration seal, and deaeration sealing method |
KR100349516B1 (en) * | 2000-02-25 | 2002-08-22 | 주식회사 제로팩 | Bag for vacuum packing apparatus |
-
2002
- 2002-01-23 WO PCT/IB2002/000180 patent/WO2003062089A2/en not_active Application Discontinuation
- 2002-01-23 EP EP02716209A patent/EP1503945A2/en not_active Withdrawn
- 2002-01-23 EA EA200400810A patent/EA006042B1/en not_active IP Right Cessation
- 2002-01-23 RO ROA200400640A patent/RO125767A2/en unknown
- 2002-01-23 JP JP2003561990A patent/JP2005525272A/en active Pending
-
2003
- 2003-01-23 YU YU62304A patent/YU62304A/en unknown
-
2004
- 2004-07-12 HR HR20040637A patent/HRP20040637A2/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2003062089A2 (en) | 2003-07-31 |
YU62304A (en) | 2006-03-03 |
EA200400810A1 (en) | 2005-02-24 |
JP2005525272A (en) | 2005-08-25 |
EA006042B1 (en) | 2005-08-25 |
RO125767A2 (en) | 2010-10-29 |
WO2003062089A3 (en) | 2004-12-16 |
EP1503945A2 (en) | 2005-02-09 |
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