IT9003657A1

IT9003657A1 - METHOD FOR THE CREATION OF A CONTAINER, IN PARTICULAR FOR LIQUIDS, OBTAINED FROM A LAMINATED TAPE MATERIAL, AND CONTAINER OBTAINED THROUGH SUCH METHOD, AS WELL BLAST USED FOR THE IMPLEMENTATION OF SUCH METHOD.

Info

Publication number: IT9003657A1
Application number: IT003657A
Authority: IT
Inventors: Andrea Romagnoli
Original assignee: Cestind Ct Studi Ind Srl
Priority date: 1990-09-14
Filing date: 1990-09-14
Publication date: 1992-03-14
Also published as: IT1242570B; IT9003657A0

Description

"METODO PER LA REALIZZAZIONE DI UN CONTENITORE IN PARTICOLARE PER LIQUIDI , OTTENUTO DA UN MATERIALE LAMINATO IN NASTRO. E CONTENITORE OTTENUTO MEDIANTE TALE METODO, NONCHÉ' SBOZZATO UTILIZZATO PER L'ATTUAZIONE DI TALE METODO "METHOD FOR THE REALIZATION OF A CONTAINER IN PARTICULAR FOR LIQUIDS, OBTAINED FROM A TAPE LAMINATED MATERIAL. AND CONTAINER OBTAINED BY THIS METHOD, AS WELL AS THE BLANK USED FOR THE IMPLEMENTATION OF THIS METHOD

DESCRIZIONE DELL'INVENZIONE DESCRIPTION OF THE INVENTION

La presente invenzione concerne un metodo per la realizzazione mediante un procedimento automatizzato di un contenitore per liquidi, con un'estremità costituita da un'unica porzione di materiale, quindi senza linee di unione, e con due linee di unione verticali sviluppantisi da detta estremità verso la restante estremità a definire il corpo del contenitore. The present invention relates to a method for manufacturing a container for liquids by means of an automated process, with one end consisting of a single portion of material, therefore without joining lines, and with two vertical joining lines extending from said end towards the remaining end to define the body of the container.

Sono noti vari tipi di contenitori ottenuti mediante piegatura di un unico sbozzato piano ed unione dei bordi dei vari lati che vengono così a trovarsi in mutua corrispondenza . Various types of containers are known which are obtained by folding a single flat blank and joining the edges of the various sides which thus come into mutual correspondence.

Viene lasciata solamente un'apertura per l'introduzione del prodotto, la quale viene poi chiusa a completamento della confezione. Only one opening is left for the introduction of the product, which is then closed to complete the package.

Infine le confezioni ottenute vengono raggruppate ed imballate per essere più convenientemente trasportate ed immagazzinate . Finally, the packages obtained are grouped and packaged to be more conveniently transported and stored.

La piegatura dello sbozzato viene realizzata lungo cordonature, opportunamente praticate su di esso, che definiscono il fondo e i lati del contenitore, nonché delle falde che, opportunamente ripiegate, permettono di ottenere il coperchio di chiusura del contenitore. The folding of the blank is carried out along creases, suitably made on it, which define the bottom and sides of the container, as well as the flaps which, when folded, allow to obtain the lid for closing the container.

Con l'ausilio di un mandrino di piegatura, opportunamente posizionato, i lati dello sbozzato vengono ripiegati rispetto ad un'estremità e uniti tra loro secondo linee di giunzione sviluppantisi da dette estremità verso l'estremità opposta del contenitore. Quindi viene introdotto il prodotto nel contenitore e viene realizzato il coperchio ad ottenimento della chiusura del contenitore. With the aid of a bending mandrel, suitably positioned, the sides of the blank are folded with respect to one end and joined together according to seams extending from said ends towards the opposite end of the container. Then the product is introduced into the container and the lid is made to obtain the closure of the container.

Un esempio di un contenitore ottenuto secondo questo metodo, è descritto nel brevetto italiano n. 1111904 la cui domanda n. 26145 è stata depositata in Italia il 26/07/77 rivendicando la priorità della domanda di brevetto tedesco n. P2639459.2 depositato nella Repubblica Federale Tedesca il 02/09/1976. An example of a container obtained according to this method is described in the Italian patent n. 1111904 whose application no. 26145 was filed in Italy on 07/26/77 claiming the priority of the German patent application n. P2639459.2 filed in the Federal Republic of Germany on 02/09/1976.

Secondo un altro metodo noto, le cordonature realizzate sullo sbozzato definiscono le pareti laterali del contenitore, individuate da una serie di aree quadrangolari consecutive, nonché il coperchio ed il fondo del contenitore, bilateralmente articolati alla serie delle pareti laterali. According to another known method, the creases made on the blank define the side walls of the container, identified by a series of consecutive quadrangular areas, as well as the lid and the bottom of the container, bilaterally articulated to the series of side walls.

In questo caso per ottenere i lati del contenitore, le aree quadrangolari vengono piegate l'una rispetto all'altra, fino a definire un tubo. In this case, to obtain the sides of the container, the quadrangular areas are bent with respect to each other, until a tube is defined.

Il bordo dell'ultimo lato viene unito al bordo del lato che si trova dalla parte opposta dello sbozzato. The edge of the last side is joined to the edge of the side that is on the opposite side of the blank.

Quindi il fondo viene piegato ed unito con i suoi bordi ai lati del contenitore, così come allo stesso modo, dopo aver introdotto il prodotto nel contenitore, viene chiuso il coperchio. Then the bottom is folded and joined with its edges to the sides of the container, as well as in the same way, after having introduced the product into the container, the lid is closed.

In alcuni casi, come ad esempio in quello descritto nella domanda di brevetto inglese GB 2146624, depositata il 11/09/1984, il coperchio può essere ottenuto da più settori articolati ai bordi di più lati che vengono uniti fra loro nella fase di definizione delle testate del contenitore. In some cases, such as the one described in the British patent application GB 2146624, filed on 11/09/1984, the lid can be obtained from several sectors articulated at the edges of several sides which are joined together in the phase of definition of the heads of the container.

Tutti i contenitori ottenuti secondo i metodi suddetti, presentano però la necessità di preparare dei fustellati aventi forme irregolari e provviste di frastagliature. Ciò provoca la necessità di fustellare un foglio di materiale, da cui ricavare il contenitore, con spreco di materiale ed incremento dei tempi per la realizzazione del contenitore. All the containers obtained according to the aforesaid methods, however, have the need to prepare blanks having irregular shapes and provided with indentations. This causes the need to punch a sheet of material, from which to obtain the container, with waste of material and an increase in the time required for making the container.

Inoltre è necessario realizzare le fustelle, ossia quegli idonei e costosi attrezzi che consentono di ottenere scontornature anche secondo sagome particolarmente complesse, degli sbozzati. Furthermore, it is necessary to make punches, that is those suitable and expensive tools which allow to obtain contours even according to particularly complex shapes, of the blanks.

Secondo un ulteriore metodo largamente attuato i contenitori possono invece essere realizzati partendo da un nastro di idoneo materiale, piegato su se stesso ed unito lungo i bordi longitudinali ad ottenere un tubo a sezione quadrilatera. According to a further widely used method, the containers can instead be made starting from a tape of suitable material, folded on itself and joined along the longitudinal edges to obtain a tube with a quadrilateral section.

Il fondo del tubo viene opportunamente piegato e chiuso a tenuta. The bottom of the tube is suitably folded and sealed.

Quindi il prodotto da confezionare viene introdotto nel contenitore e la parte superiore di quest'ultimo viene opportunamente ripiegata a chiusura della confezione. Quest'ultimo metodo per l'ottenimento di contenitori, si presta in modo particolare per il confezionamento di prodotti liquidi. Then the product to be packaged is introduced into the container and the upper part of the latter is suitably folded to close the package. The latter method for obtaining containers is particularly suitable for the packaging of liquid products.

Tuttavia, come ben noto ai tecnici del settore, nel caso in cui il prodotto da confezionare sia liquido, e destinato ad un uso alimentare, come nel caso di latte, vino, acqua minerale ecc., sorge in più il problema di mantenere l'asetticità all'interno del contenitore, soprattutto in corrispondenza dei bordi sovrapposti e saldati l'uno all'altro. However, as is well known to the technicians of the sector, in the event that the product to be packaged is liquid, and intended for food use, as in the case of milk, wine, mineral water, etc., the problem of maintaining the asepticity inside the container, especially at the overlapping and welded edges.

In queste zone infatti, le fibre che compongono il materiale di supporto, laminato con materiale plastico, se non sono protette in modo opportuno, possono venire a contatto con il contenuto, alterandolo, anche solo in piccola parte, a causa delle impurità presenti tra le fibre stesse. In fact, in these areas, the fibers that make up the support material, laminated with plastic material, can come into contact with the content if they are not properly protected, altering it, even if only in a small part, due to the impurities present between the fibers themselves.

Per ovviare a questo problema sono stati messi a punto vari metodi che prevedono in diversi modi la copertura delle linee di unione del contenitore, all'interno di quest 'ultimo . To overcome this problem, various methods have been developed which provide in different ways to cover the connection lines of the container, inside the latter.

In linea generale si è proposto di ricoprire i bordi del materiale che compone il contenitore sovrapponendo delle bandelle di materiale termosaldabile (es. : polietilene) sulle linee di giunzione. In general, it has been proposed to cover the edges of the material that makes up the container by superimposing strips of heat-sealable material (eg: polyethylene) on the junction lines.

Questo viene ottenuto o riportando la bandella dopo l'ottenimento del contenitore, oppure facendo in modo che il materiale di laminazione sporga rispetto allo strato di supporto lungo i bordi destinati a rimanere interni al contenitore . This is obtained either by returning the strip after obtaining the container, or by causing the lamination material to protrude with respect to the support layer along the edges intended to remain inside the container.

Il tratto sporgente viene poi ripiegato sul bordo oppure direttamente saldato alla parete interna del contenitore . The protruding portion is then folded over the edge or directly welded to the inner wall of the container.

Questi metodi tuttavia, si presentano complicati nella loro attuazione, richiedendo così delle attrezzature complesse . However, these methods are complicated in their implementation, thus requiring complex equipment.

Inoltre più fasi operative aumentano la possibilità di avere scarti. Furthermore, more operational phases increase the possibility of having waste.

Tutto ciò incide negativamente sui costi di realizzazione dei contenitori, e quindi sul costo del prodotto in essi introdotto. All this negatively affects the manufacturing costs of the containers, and therefore the cost of the product introduced into them.

Lo scopo della presente invenzione, è quello di proporre un metodo per la realizzazione di contenitori, in particolare per liquidi, con ciascun contenitore ottenuto da una striscia di materiale interessata da una serie di cordonature, senza prevedere per la fustellatura della striscia complicati profili. The object of the present invention is to propose a method for making containers, in particular for liquids, with each container obtained from a strip of material affected by a series of creases, without requiring complicated profiles for punching the strip.

In altre parole, lo scopo della presente invenzione è quello di proporre un metodo che consenta di ottenere un contenitore da una striscia di materiale semplicemente tagliata da un nastro ed opportunamente interessata da cordonature . In other words, the object of the present invention is to propose a method which allows to obtain a container from a strip of material simply cut from a tape and suitably affected by creasing.

Altro scopo dell'invenzione è quello di proporre uno sbozzato piano interessato da cordonature realizzate secondo un tracciato tale che variando opportunamente alcune distanze tra di esse sia possibile ottenere contenitori conformati secondo diverse varianti. Another object of the invention is to propose a flat blank affected by creasing according to a pattern such that by suitably varying some distances between them it is possible to obtain containers shaped according to different variants.

Gli scopi citati vengono ottenuti in accordo con la presente invenzione, mediante l'adozione di un metodo che, per la realizzazione di un contenitore, prevede l'utilizzo di uno sbozzato come descritto nelle rivendicazioni da 1 a 26. The aforementioned objects are achieved in accordance with the present invention, by adopting a method which, for the production of a container, provides for the use of a blank as described in claims 1 to 26.

Le caratteristiche dell'invenzione, non emergenti da quanto sopra detto, sono evidenziate nel seguito, con riferimento alle unite tavole di disegno, nelle quali: - la fig. 1 illustra schematicamente le fasi tra loro in successione del metodo in oggetto, nonché il contenitore così ottenuto; The characteristics of the invention, not emerging from the above, are highlighted below, with reference to the accompanying drawing tables, in which: - fig. 1 schematically illustrates the phases in succession of the method in question, as well as the container thus obtained;

- la fig. la illustra il materiale laminato utilizzato visto secondo la linea di sezione I-I di fig.l; - fig. la illustrates the laminated material used seen along the section line I-I of fig.

- la fig. 2 illustra lo sbozzato nella sua conformazione base dal quale, mediante il metodo qui proposto, viene ottenuto il contenitore; - fig. 2 shows the blank in its basic conformation from which, by means of the method proposed here, the container is obtained;

- le figg. 3, 4, 5, 6 e 7, illustrano alcune varianti nella conformazione dello sbozzato con cui realizzare altrettante diverse varianti di contenitori; - figs. 3, 4, 5, 6 and 7, illustrate some variants in the shape of the blank with which to make as many different variants of containers;

- le figg. 3a, 4a, 5a, 6a e 7a, illustrano alcuni contenitori ottenuti a partire da sbozzati conformati secondo le corrispondenti suddette varianti; - figs. 3a, 4a, 5a, 6a and 7a, show some containers obtained starting from blanks shaped according to the corresponding aforesaid variants;

- la fig. 8, illustra un esempio di raggruppamento dei contenitori per l'imballaggio; - fig. 8, illustrates an example of grouping of containers for packaging;

- la fig.9 illustra, schematicamente, le fasi iniziali di una prima variante del metodo proposto; - Fig. 9 schematically illustrates the initial phases of a first variant of the proposed method;

- la fig.10 illustra, schematicamente, le fasi iniziali di una seconda variante del metodo proposto; - Fig. 10 schematically illustrates the initial phases of a second variant of the proposed method;

- la fig.Il illustra la sez.XI-XI relativa alle figg.9 e 10. - Fig. II illustrates section XI-XI relating to figs. 9 and 10.

Con riferimento alle unite tavole di disegno, ed in particolare alla fig. 1, con 1 si è indicato un materiale in nastro laminato con materiale plastico, ad esempio con polietilene avvolto su una bobina 2 dalla quale il nastro 1 viene prelevato. With reference to the accompanying drawing tables, and in particular to fig. 1, 1 indicates a strip material laminated with plastic material, for example with polyethylene wound on a reel 2 from which the strip 1 is taken.

Il materiale di supporto del nastro è costituito ad esempio da un nastro di cartoncino, laminato su entrambi i lati, ad esempio secondo il metodo descritto nella domanda di brevetto per invenzione industriale N. The support material of the tape is constituted for example by a cardboard tape, laminated on both sides, for example according to the method described in the patent application for industrial invention N.

3535A/90 depositata in Italia il 04.06.90 a nome della stessa Richiedente. 3535A / 90 filed in Italy on 04.06.90 in the name of the same Applicant.

Il metodo proposto nella domanda di brevetto 3535A/90 riguarda la realizzazione di materiali laminati a nastro, del tipo costituiti da uno strato di supporto di carta, o cartoncino, e da strati di materiale termoplastico (es: polietilene) applicati sulle facciate dello strato di supporto, ed in particolare consente di ottenere un nastro, di materiale laminato, con i bordi longitudinali sigillati già all'atto della realizzazione del nastro. The method proposed in patent application 3535A / 90 concerns the production of rolled tape materials, of the type consisting of a support layer of paper, or cardboard, and layers of thermoplastic material (e.g. polyethylene) applied on the facades of the layer of support, and in particular it allows to obtain a strip, of laminated material, with the longitudinal edges already sealed when the strip is made.

In pratica, come evidenziato in fig.la, lungo i bordi longitudinali del nastro di cartoncino, il materiale con cui è stata effettuata la laminazione sporge per un certo tratto, su entrambe le facciate dello strato di supporto . In practice, as shown in fig.

I due bordi sporgenti del materiale con cui è stata effettuata la laminazione risultano tra loro uniti, sigillando cosi rispetto all'esterno il relativo bordo longitudinale del nastro di cartoncino. The two protruding edges of the material with which the lamination was carried out are joined together, thus sealing the relative longitudinal edge of the cardboard tape with respect to the outside.

Il materiale ottenuto come sopra descritto può essere sottoposto con estrema facilità ad operazioni di piegatura e termosaldatura per ottenere dei contenitori. Disponendo in modo opportuno le linee di articolazione lungo le quali viene piegato il materiale laminato, è possibile ottenere un contenitore 4 che in nessuna zona della sua superficie interna presenti parti, seppur piccole, di materiale fibroso (carta, cartoncino, ecc.) che possono trovarsi a contatto con il contenuto. The material obtained as described above can be subjected very easily to folding and heat-sealing operations to obtain containers. By appropriately arranging the articulation lines along which the laminated material is folded, it is possible to obtain a container 4 which in no area of its internal surface has parts, albeit small, of fibrous material (paper, cardboard, etc.) which can be in contact with the content.

In accordo con quanto appena detto, il metodo in oggetto prevede, come prima fase, la recisione del materiale in nastro 1 ad ottenimento di una striscia 3 (fase indicata con A nella fig. 1). In accordance with what has just been said, the method in question provides, as a first step, the cutting of the material in the strip 1 to obtain a strip 3 (step indicated with A in Fig. 1).

Come risulta da quanto già detto, la striscia 3 presenta i bordi longitudinali 3a e 3b sigillati tra i due bordi sporgenti 3c dei due strati superiore ed inferiore del materiale con cui è stata effettuata la laminazione, come ben evidente in fig.la. As can be seen from what has already been said, the strip 3 has the longitudinal edges 3a and 3b sealed between the two protruding edges 3c of the two upper and lower layers of the material with which the lamination was carried out, as clearly evident in Fig.

Quindi sulla striscia 3 può essere realizzato un foro 10, nella zona destinata a costituire la testata superiore 7 del contenitore 4 (fase indicata con B in fig.1 ). Therefore a hole 10 can be made on the strip 3, in the area intended to constitute the upper head 7 of the container 4 (phase indicated with B in fig. 1).

Attraverso il foro 10 verrà poi introdotto, in un'opportuna fase successiva, un tappo 11. A plug 11 will then be introduced through the hole 10 in an appropriate subsequent step.

Quindi viene realizzata una serie di cordonature 15a,15b e 16b,16c lungo la striscia 3, in modo da ottenere, come illustrato in fig. 2, uno sbozzato 13 sul quale sono definite un'area centrale 18a quadrilatera, situata tra due aree laterali 19a e 19b contrapposte e simmetriche rispetto all'asse trasversale Y di detta area centrale 18a. Then a series of creases 15a, 15b and 16b, 16c are made along the strip 3, so as to obtain, as illustrated in fig. 2, a blank 13 on which a central quadrilateral area 18a is defined, located between two side areas 19a and 19b opposite and symmetrical with respect to the transverse axis Y of said central area 18a.

L'area centrale e le aree laterali risultano poi interposte tra due bande laterali longitudinali 21a e 21b, interessate da due coppie simmetriche, rispetto all'asse trasversale Y dell'area centrale, di linee 25a e 26a che si originano da corrispondenti angoli dell'area centrale 18a. The central area and the lateral areas are then interposed between two longitudinal lateral bands 21a and 21b, affected by two symmetrical pairs, with respect to the transverse axis Y of the central area, of lines 25a and 26a that originate from corresponding angles of the central area 18a.

Le linee 25a e 26a di ciascuna coppia sono divergenti e si sviluppano fino al corrispondente bordo longitudinale della striscia 3 in modo da delimitare su ciascun lato dell'area centrale 18a una zona laterale di completamento 29a, che risulta compresa tra le due linee piO interne 25a ed il bordo 28a, che rimane tra di esse compreso, dell'area centrale 18a. The lines 25a and 26a of each pair are divergent and extend up to the corresponding longitudinal edge of the strip 3 so as to delimit on each side of the central area 18a a lateral completion zone 29a, which is included between the two inner lines 25a and the edge 28a, which remains between them, of the central area 18a.

Altre cordonature 16a,16d,45a e 45b definiscono, in corrispondenza delle opposte estremità trasversali della striscia 3, due lembi 31a e 31b ai cui bordi trasversali liberi sono articolate due pattine trasversali 32a e 32b e che risultano interessati da due cordonature 35a e 35b sviluppantisi secondo una linea spezzata avente sviluppo trasversale . Other creases 16a, 16d, 45a and 45b define, in correspondence with the opposite transversal ends of strip 3, two flaps 31a and 31b to whose free transverse edges two transversal flaps 32a and 32b are articulated and which are affected by two developing creases 35a and 35b according to a broken line having a transversal development.

Sui lembi 31a e 31b le spezzate 35a e 35b individuano, in cooperazione con le corrispondenti cordonature trasversali 16a e 16d d'articolazione dei medesimi lembi, ciascuno alla corrispondente area laterale 19a,19b e con le cordonature d'articolazione delle relative pattine trasversali ai rispettivi lembi, una serie di settori triangolari. On the flaps 31a and 31b the broken sections 35a and 35b identify, in cooperation with the corresponding transversal creases 16a and 16d of articulation of the same flaps, each to the corresponding lateral area 19a, 19b and with the creases of articulation of the relative transversal flaps to the respective flaps, a series of triangular sectors.

Viene ora descritta la dislocazione dei settori sul solo lembo 3la, rimanendo inteso che le stesse considerazioni sono valide per il lembo 31b, simmetrico al precedente. Il settore 36a, centrale, ha forma di triangolo isoscele ed ha la base giacente sulla cordonatura trasversale 16a definente il corrispondente bordo trasversale della rispettiva area laterale 19a, mentre altri due settori conformati secondo triangoli coincidenti, risultano capovolti ed adiacenti al settore centrale. The dislocation of the sectors on the flap 3a alone is now described, it being understood that the same considerations are valid for the flap 31b, symmetrical to the previous one. The central sector 36a has the shape of an isosceles triangle and has the base lying on the transversal creasing 16a defining the corresponding transversal edge of the respective lateral area 19a, while two other sectors shaped according to coincident triangles are overturned and adjacent to the central sector.

Questi ultimi settori risultano inoltre suddivisi lungo il loro asse di simmetria dal prolungamento delle cordonature 15a e 15b definenti le bande laterali 21a e 21b, in modo da individuare due triangoli rettangoli 37a e 38a aventi un cateto in comune. These latter sectors are also divided along their axis of symmetry by the extension of the creases 15a and 15b defining the side bands 21a and 21b, so as to identify two right-angled triangles 37a and 38a having a cathetus in common.

infine due settori conformati secondo due triangoli rettangoli 39a e 39b rimangono delimitati dalle ipotenuse più esterne dei settori a forma di triangolo rettangolo 37a più esterni e dai bordi esterni dello sbozzato 13. finally, two sectors shaped according to two right-angled triangles 39a and 39b remain delimited by the outermost hypotenuses of the outermost right-angled triangle-shaped sectors 37a and by the external edges of the blank 13.

Tutte le cordonature elencate sopra, vengono contemporaneamente realizzate con un'unica operazione in una fase indicata con C in fig. 1, e sono disposte in modo tale che il foro 10, quando previsto, venga a trovarsi all'interno dell'area centrale 18a. All the creases listed above are simultaneously made with a single operation in a phase indicated with C in fig. 1, and are arranged in such a way that the hole 10, when provided, is inside the central area 18a.

Viene quindi applicato il tappo 11 (fase D) che viene poi fissato all'orlo del foro 10 (ad esempio per termosaldatura} in una fase indicata con E in fig.l. The cap 11 is then applied (phase D) which is then fixed to the edge of the hole 10 (for example by heat sealing} in a phase indicated with E in fig.l.

La scelta della fase durante la quale introdurre il tappo 11 nel foro 10, dipende dalla necessità o dall'opportunità di poter operare sulla striscia 3 senza impedimenti causati dal tappo che risulta sporgente rispetto alla superficie della striscia. The choice of the step during which to introduce the cap 11 into the hole 10 depends on the need or opportunity to be able to operate on the strip 3 without impediments caused by the plug which protrudes with respect to the surface of the strip.

A questo proposito, secondo una delle varianti proposte, il tappo viene sostituito da un diaframma 6 di materiale plastico (polietilene) oppure metallico (alluminio) in modo da poter essere poi facilmente perforato con una cannuccia, o altro oggetto acuminato, per consumare il prodotto nel contenitore, come illustrato nelle figg. 3 e 3a. In this regard, according to one of the proposed variants, the cap is replaced by a diaphragm 6 made of plastic (polyethylene) or metal (aluminum) so that it can then be easily perforated with a straw, or other sharp object, to consume the product. in the container, as illustrated in figs. 3 and 3a.

In entrambi i casi, la fase successiva-, indicata con F in fig.l, prevede la piegatura delle due aree laterali 19a e 19b ad angolo retto, verso l'alto, mentre le due zone laterali 29a dì completamento risultano leggermente inclinate verso il basso, a causa delle linee più interne 25a che non sono parallele all'asse trasversale Y dell'area centrale. In both cases, the subsequent phase - indicated by F in fig. low, due to the innermost lines 25a which are not parallel to the transverse axis Y of the central area.

Si ottengono così le prime due pareti 8a del contenitore 4. The first two walls 8a of the container 4 are thus obtained.

Quindi si procede a piegare le zone laterali 29a di completamento verso l'interno, vale a dire tra le due aree laterali 19a e 19b piegate, mentre le due bande laterali 21a e 21b vengono piegate lungo le linee 26a più esterne rispetto all'asse trasversale Y (fase G). Vengono poi piegate le sezioni 39a e 39b, corrispondenti alle aree laterali 19a e 19b, delle bande laterali 21a e 21b, a chiusura dello spazio delimitato da queste ultime, e vengono tra loro uniti, ad esempio mediante termosaldatura, i corrispondenti bordi esterni delle medesime sezioni delle bande laterali e delle zone laterali di completamento alle superfici interne delle pareti 8b del contenitore 4 così formate (fase H). The completion side areas 29a are then folded inwards, i.e. between the two folded side areas 19a and 19b, while the two side bands 21a and 21b are folded along the lines 26a outermost with respect to the transverse axis Y (phase G). The sections 39a and 39b, corresponding to the side areas 19a and 19b, of the side bands 21a and 21b, are then folded to close the space delimited by the latter, and the corresponding external edges of the same are joined together, for example by heat sealing. sections of the side bands and of the side areas of completion to the internal surfaces of the walls 8b of the container 4 thus formed (step H).

Quindi si procede, se richiesto, alla sterilizzazione dell'interno del contenitore in tal modo ottenuto (fase L) , ed all'introduzione in quest'ultimo del prodotto da confezionare (fase M>. Then, if required, the inside of the container thus obtained is sterilized (phase L), and the product to be packaged is introduced into the latter (phase M>.

Infine le pattine 32a e 32b articolate ai lembi 31a e 31b vengono tra loro unite a chiusura della testata inferiore 12 del contenitore 4 (fase N), mentre i settori 36a,37a,38a,39a e 39b individuati sui lembi 31a e 31b vengono piegati verso l'interno del contenitore <fase P>. Finally, the flaps 32a and 32b articulated to the flaps 31a and 31b are joined together to close the lower head 12 of the container 4 (phase N), while the sectors 36a, 37a, 38a, 39a and 39b identified on the flaps 31a and 31b are folded towards the inside of the container <phase P>.

Sempre secondo la prima forma di realizzazione qui descritta, la distanza ZI tra le cordonature trasversali 16a e 16d definenti il limite interno dei lembi 31a e 31b, e quelle di delimitazione delle corrispondenti pattine trasversali 32a e 32b, risulta maggiore della metà della larghezza Z delle aree laterali 19a,19b e dell'area centrale 18a. Still according to the first embodiment described here, the distance ZI between the transverse creases 16a and 16d defining the internal limit of the flaps 31a and 31b, and those delimiting the corresponding transverse flaps 32a and 32b, is greater than half the width Z of the lateral areas 19a, 19b and the central area 18a.

In questo modo quando i settori vengono piegati essi rimangono rivolti verso l'interno del contenitore, in modo da realizzare una sede 30 sul fondo del contenitore stesso . In this way, when the sectors are folded, they remain turned towards the inside of the container, so as to provide a seat 30 on the bottom of the container itself.

Il contenitore cosi ottenuto, che viene poi capovolto come illustrato in fig.l nella fase indicata con Q, si presenta di forma parallelepipeda , eventualmente provvisto del citato tappo 11 sulla sua testata superiore 7, nonché di una sede 30 su quella inferiore 12. The container thus obtained, which is then overturned as illustrated in Fig. 1 in the phase indicated with Q, has a parallelepiped shape, possibly provided with the aforementioned cap 11 on its upper head 7, as well as with a seat 30 on the lower head 12.

Come illustrato in fig. 8, ciò consente di impilare uno sull'altro con estrema facilità i contenitori raggruppati tra loro, in quanto i tappi dei contenitori sottostanti si introducono nelle corrispondenti sedi realizzate sul fondo dei contenitori sovrastanti. As illustrated in fig. 8, this allows the containers grouped together to be stacked one on top of the other with extreme ease, since the caps of the underlying containers are inserted into the corresponding seats made on the bottom of the overlying containers.

Come noto i contenitori vengono poi adeguatamente imballati. As known, the containers are then suitably packaged.

Seguendo invece la seconda variante del metodo (figg.3 e 3a), a cui si è accennato sopra, il contenitore 14 ottenuto presenta la testata superiore 17 piana, con un foro 10 nel centro chiuso con una membrana 6 perforabile . On the other hand, following the second variant of the method (Figs. 3 and 3a), mentioned above, the container 14 obtained has a flat upper head 17, with a hole 10 in the center closed with a perforable membrane 6.

La fig. 3 illustra una porzione dello sbozzato 13 che risulta dall'attuazione del metodo in accordo con questa variante. Fig. 3 illustrates a portion of the blank 13 resulting from the implementation of the method in accordance with this variant.

Come ben visibile in fig.3a, dove è illustrato un contenitore 14 così ottenuto, in questo caso la cavità sul fondo del contenitore non sarebbe necessaria per imballare i contenitori con sufficiente facilità. As clearly visible in Figure 3a, where a container 14 obtained in this way is illustrated, in this case the cavity on the bottom of the container would not be necessary to pack the containers with sufficient ease.

La fig. 4, illustra uno sbozzato 23 ottenuto invece seguendo una terza variante nella realizzazione del contenitore secondo il presente metodo, la quale prevede la tracciatura sulla striscia 3 delle cordonature ma non la realizzazione del foro 10. Fig. 4, illustrates a blank 23 obtained instead following a third variant in the realization of the container according to the present method, which provides for the marking on the strip 3 of the creases but not the realization of the hole 10.

Le cordonature che originano le linee più interne 25b, rispetto all'asse trasversale Y, che interessano la zona di una banda laterale 2le in corrispondenza dell'area centrale 18b, sono però disposte in modo da convergere in corrispondenza del bordo longitudinale della striscia cosi da definire una delle zone laterali di completamento 29b con forma triangolare. The creases that originate the innermost lines 25b, with respect to the transverse axis Y, which affect the area of a lateral band 21l in correspondence with the central area 18b, are however arranged so as to converge at the longitudinal edge of the strip so as to define one of the lateral completion zones 29b with a triangular shape.

Inoltre le linee più esterne 26b sulla banda laterale 2ic, sono parallele all'asse trasversale Y. Furthermore, the outermost lines 26b on the lateral band 2ic are parallel to the transverse axis Y.

In questo modo, durante la piegatura delle aree laterali e successivamente durante la piegatura della zona laterale di completamento 29b, risulta definito un beccuccio 40 che si protende dalla testata superiore 27 del contenitore 24 verso l'esterno come illustrato in fig. 4a, dove è raffigurato lo stesso contenitore 24 così ottenuto. In this way, during the folding of the lateral areas and subsequently during the folding of the lateral completion zone 29b, a spout 40 is defined which extends from the upper head 27 of the container 24 towards the outside as illustrated in fig. 4a, where the same container 24 thus obtained is shown.

Il beccuccio 40 viene poi piegato verso la corrispondente parete del contenitore 24 e quindi unito alla superficie esterna della medesima. The spout 40 is then bent towards the corresponding wall of the container 24 and then joined to the external surface of the same.

Una quarta variante del metodo qui descritto, dà luogo alla realizzazione di uno sbozzato 33, come illustrato in fig. 5. A fourth variant of the method described here results in the production of a blank 33, as illustrated in fig. 5.

La quarta variante prevede che la linea spezzata 35c e 35d realizzata su ciascuno dei lembi 31c e 31d, in cooperazione con la cordonatura trasversale d'articolazione del medesimo lembo alla corrispondente area laterale 19e, 19f e con la cordonatura d'articolazione della relativa pattina trasversale 32c e 32d al rispettivo lembo, individua un settore centrale 36b e 36c a forma di triangolo isoscele avente la base giacente sulla cordonatura trasversale 16e e 16f che definisce il corrispondente bordo trasversale della rispettiva area laterale 19e e 19f. The fourth variant provides that the broken line 35c and 35d made on each of the flaps 31c and 31d, in cooperation with the transversal articulation creasing of the same flap to the corresponding lateral area 19e, 19f and with the articulation creasing of the relative transversal flap 32c and 32d to the respective edge, identifies a central sector 36b and 36c in the shape of an isosceles triangle having the base lying on the transverse creasing 16e and 16f which defines the corresponding transverse edge of the respective lateral area 19e and 19f.

Inoltre le linee spezzate 35c e 35d su ciascun lembo individuano due triangoli rettangoli 37b e 37c aventi 1'ipotenusa giacente sul rispettivo lato obliquo del relativo triangolo isoscele 36b e 36c, mentre due settori rettangolari 41a e 41b risultano bilateralmente dislocati rispetto al gruppo formato dai settori triangolari 36b, 37c e 37, 37b. Furthermore, the broken lines 35c and 35d on each edge identify two right-angled triangles 37b and 37c having the hypotenuse lying on the respective oblique side of the relative isosceles triangle 36b and 36c, while two rectangular sectors 41a and 41b are bilaterally displaced with respect to the group formed by the sectors triangular 36b, 37c and 37, 37b.

La distanza r tra la cordonatura 16e e 16f definente il limite interno di ciascuno dei lembi 3le e 31d, e quella di delimitazione delle pattine trasversali 32c e 32d è uguale alla metà della larghezza Z delle aree laterali 19e e 19f e dell'area centrale. The distance r between the creasing 16e and 16f defining the internal limit of each of the flaps 31a and 31d, and that of delimitation of the transverse flaps 32c and 32d is equal to half the width Z of the side areas 19e and 19f and of the central area.

In tal modo una volta ripiegati i settori costituenti i lembi 31c e 31d, dopo l'unione delle pattine trasversali 32c e 32d, rimangono formati due beccucci 42a e 42b che si protendono dalla testata inferiore 22 del contenitore 34 verso l'esterno, destinati ad essere piegati ciascuno verso la corrispondente parete del contenitore, nonché ad essere uniti alla superficie esterna della medesima, come illustrato in fig. 5a. In this way, once the sectors constituting the flaps 31c and 31d have been folded, after the union of the transverse flaps 32c and 32d, two spouts 42a and 42b remain formed which protrude from the lower head 22 of the container 34 outwards, intended for each be bent towards the corresponding wall of the container, as well as being joined to the external surface thereof, as illustrated in fig. 5a.

Come previsto da una quinta variante del metodo rivendicato, lo sbozzato 43, illustrato parzialmente in fig.6, presenta una distanza s, tra la cordonatura longitudinale 15c definente la banda laterale 21d ed il corrispondente bordo longitudinale della striscia, inferiore alla metà della larghezza Z delle aree laterali 19g, mentre la larghezza t della rimanente banda laterale 21e rimane non inferiore alla metà della larghezza Z. As foreseen by a fifth variant of the claimed method, the blank 43, partially illustrated in Fig. 6, has a distance s, between the longitudinal creasing 15c defining the lateral band 21d and the corresponding longitudinal edge of the strip, less than half the width Z of the side areas 19g, while the width t of the remaining side band 21e remains not less than half of the width Z.

In tal modo, successivamente alla piegatura delle bande laterali 21d e 21e, i bordi longitudinali di due sezioni 39c contigue risultano distanziati l'uno dall'altro, in questo caso l'unione delle due medesime sezioni 39c avviene utilizzando la parte di materiale di laminazione che sporge lateralmente dalla striscia, così da lasciare una finestrella 5 trasparente lungo l'intera parete 8c del contenitore 44, per il controllo della quantità del contenuto, come illustrato in fig.6a dove è raffigurato il contenitore stesso. In this way, after the folding of the side bands 21d and 21e, the longitudinal edges of two contiguous sections 39c are spaced from each other, in this case the union of the two same sections 39c takes place using the part of lamination material which protrudes laterally from the strip, so as to leave a transparent window 5 along the entire wall 8c of the container 44, for checking the quantity of the content, as illustrated in Figure 6a where the container itself is shown.

Lo sbozzato 53 ottenuto in accordo con una sesta variante del metodo descritto, è illustrato parzialmente in fig. 7. The blank 53 obtained in accordance with a sixth variant of the described method, is partially illustrated in fig. 7.

La distanza u fra entrambe le cordonature 15d e 15e definenti le due bande laterali 21f e 21g ed il corrispondente bordo longitudinale della striscia 3, è inferiore alla metà della larghezza Z delle aree laterali 19h. The distance u between both creases 15d and 15e defining the two side bands 21f and 21g and the corresponding longitudinal edge of the strip 3, is less than half the width Z of the side areas 19h.

In questo modo, successivamente alla piegatura delle bande laterali 21f e 21g, i bordi longitudinali delle due coppie di sezioni 39d e 39e rispettivamente contigue risultano distanziati l'uno dall'altro. In this way, after the folding of the side bands 21f and 21g, the longitudinal edges of the two pairs of sections 39d and 39e respectively contiguous are spaced from each other.

In questo caso l'unione delle due medesime sezioni avviene utilizzando la parte di materiale di laminazione che sporge lateralmente dalla striscia, così da lasciare due finestrelle 55 trasparenti lungo entrambe le pareti 8d e 8e del contenitore 54 illustrato in fig. la. In this case the union of the two same sections takes place using the part of lamination material which protrudes laterally from the strip, so as to leave two transparent windows 55 along both walls 8d and 8e of the container 54 illustrated in fig. there.

Tutto quanto sopra descritto viene ottenuto senza operazioni aggiuntive oltre a quelle previste per l'ottenimento della forma strutturale del contenitore. Il metodo qui descritto, consente appunto di realizzare un contenitore nel quale lo strato di supporto rimane coperto dal materiale con cui esso è stato laminato, anche e soprattutto lungo le linee di giunzione (termosaldatura) dei bordi. All of the above described is obtained without additional operations other than those foreseen for obtaining the structural shape of the container. The method described here allows to realize a container in which the support layer remains covered by the material with which it was laminated, also and above all along the junction lines (heat-sealing) of the edges.

Questo risultato è reso possibile in parte grazie al materiale utilizzato (ossia il nastro ottenuto secondo il metodo oggetto della domanda di brevetto 3535A/90) ed in parte grazie alla particolare disposizione delle cordonature realizzate sulla striscia 3 del materiale in nastro . This result is made possible partly thanks to the material used (ie the tape obtained according to the method object of patent application 3535A / 90) and partly thanks to the particular arrangement of the creases made on the strip 3 of the tape material.

Come già ricordato, nelle figg.9 e 10 sono illustrate altrettante varianti del metodo proposto. As already mentioned, figs. 9 and 10 illustrate as many variants of the proposed method.

Con riferimento alla fig.9, con 103 è stata indicata (fase A) una striscia di materiale laminato, di tipo noto, ai cui fianchi longitudinali, più precisamente in corrispondenza della superficie che risulterà interna nel corrispondente contenitore, vengono applicati (fase Al) ad esempio mediante termosaldatura, relativi nastrini 103a,103b di resina sintetica termoplastica (preferibilmente polietilene - fig.ll), sporgenti trasversalmente rispetto alla striscia stessa a definire i bordi longitudinali di guest'ultima. With reference to fig. 9, 103 indicates (phase A) a strip of laminated material, of a known type, to whose longitudinal sides, more precisely in correspondence with the surface that will be internal in the corresponding container, are applied (phase A1) for example, by heat sealing, relative ribbons 103a, 103b of thermoplastic synthetic resin (preferably polyethylene - fig. 11), projecting transversely with respect to the strip itself to define the longitudinal edges of the latter.

Le restanti fasi del metodo, e cioè da B a Q, sono le stesse già descritte in precedenza. The remaining steps of the method, that is from B to Q, are the same as previously described.

La striscia 103 può essere ricavata da una bobina, similmente a quanto descritto in fig.l (cioè con il nastro continuo nel quale è già definita la larghezza della striscia), oppure ricavata, mediante recisione, da una bobina 104 (fig.9) in cui risulta già definita la lunghezza della striscia 103. The strip 103 can be obtained from a reel, similarly to what is described in fig. 1 (i.e. with the continuous tape in which the width of the strip is already defined), or obtained, by cutting, from a reel 104 (fig. 9) in which the length of the strip 103 is already defined.

Quest'ultima soluzione risulta più vantaggiosa della precedente, in quanto, nel relativo contenitore ottenuto da ogni striscia 103, le fibre del materiale laminato risultano orientate trasversalmente, il che incide positivamente sulla resistenza meccanica del contenitore (in altri termini si gonfia in misura minore rispetto al contenitore 4 ottenuto secondo le fasi già descritte). The latter solution is more advantageous than the previous one, since, in the relative container obtained from each strip 103, the fibers of the laminated material are oriented transversely, which positively affects the mechanical resistance of the container (in other words it swells to a lesser extent than to the container 4 obtained according to the steps already described).

Nella seconda variante del metodo proposto (fig.10), vengono forniti fustellati, costituiti dalla striscia 103 con relativi nastrini 103a, 103b (fig.ll), sui quali sono già state realizzate le operazioni di cui alle fasi B e C; le restanti fasi, da D a Q, sono le stesse già descritte in precedenza. In the second variant of the proposed method (fig. 10), blanks are supplied, consisting of the strip 103 with relative ribbons 103a, 103b (fig. 11), on which the operations referred to in steps B and C have already been carried out; the remaining steps, from D to Q, are the same as previously described.

E'da evidenziare che la fase di stampa sulla facciata di ogni striscia 103, quella destinata a risultare esterna nel corrispondente contenitore, è realizzabile con procedimenti (noti) più economici rispetto a quelli con cui si effettua tale stampa su ogni striscia 3 di cui al metodo inizialmente descritto. It should be pointed out that the printing step on the face of each strip 103, the one destined to be external in the corresponding container, can be carried out with (known) cheaper processes than those with which such printing is carried out on each strip 3 referred to in method initially described.

Si intende che quanto sopra è stato descritto a titolo esemplificativo e non limitativo, per cui eventuali varianti di carattere pratico e/o applicativo del metodo, così come eventuali varianti nella realizzazione del contenitore in aggiunta a quelle descritte, si intendono comprese nell'ambito protettivo relativo all'invenzione, come sopra descritta e nel seguito rivendicata . It is understood that the above has been described by way of non-limiting example, therefore any practical and / or applicative variants of the method, as well as any variants in the construction of the container in addition to those described, are understood to be included in the protective scope. relating to the invention, as described above and claimed hereinafter.

Claims

CLAIMS 1) Method for making a container, in particular for liquids, obtained from a rolled tape material with said container consisting of a flat head whose sides are articulated as many side walls ending with shaped and folded flaps to form a closing head of said container; said method being characterized by providing: obtaining a strip 3,103 from which a blank 13, 23, 33, 43, 53 will be subsequently obtained, the longitudinal edges 3a, 3b, 103a, 103b of said strip being of heat-sealable material; the creation of a first series of creases 15a, b, c, d, e, 16b, c on said strip 3, to define a central quadrilateral area 18a, b, located between two lateral areas 19a, b, c, d, e, f, g, h opposite and symmetrical with respect to the transverse axis Y of said central area 18a, b and said side areas 19a, b, c, d, e, f, g, h interposed between two side bands 21a, b, c, d, e, f, g, longitudinal, being also provided for the tracing of two symmetrical pairs, with respect to the transverse axis Y of said central area 18a, b, of lines, respectively internal 25a, b and external 26a, b with respect to said transverse axis Y of said central area, originating from corresponding angles of said central area 18a, b, with the lines 25a, b, 26a, b of each pair diverging according to predetermined angles and extending up to the corresponding longitudinal edge of said strip 3 to identify on each side of said central area 18a, b a lateral completion area 29a, b comprised between the two innermost lines 25a , b and the edge 28a, b of said central area 18a, b between them; the simultaneous creation of a second series of creases 16a, 16d, 45a, 45b designed to define, at each of the opposite transverse ends of said strip 3, a flap 31a, b, c, d, to whose transverse edge a flap 32a, b, c, d, transversal and which is affected by a broken line creasing 35a, b, c / d, having a transversal development, to obtain a series of sectors 36a, b, 37a, b, 38a, 39a , b; the folding, in correspondence of the creases 16b, c of articulation to the aforementioned central area 18a, b, of said lateral areas 19a, b, c, d, e, f, g, h on the same side, with simultaneous folding of said bands side 21a, b, c, d, e, f, g, along the aforementioned innermost lines 25a, b with respect to the transverse axis Y of the same central area 18a, b, to define two side walls 8a of said container 4,14 , 24,34,44,54, with consequent definition of said lateral completion zones 29a, b; the folding of said lateral completion zones 29a, b towards the space included between the two folded lateral areas 19a, b, c, d, e, f, g, h, with folding of said lateral bands 21a, b, c, d , e, f, g along the aforementioned lines 26a, b outermost with respect to said transverse axis Y; folding of the sections 39a, b, c, d, and of said side bands 21a, b, c, d, e, f, g corresponding to the aforementioned side areas 19a, b, c, d, e, f, g, h, closing the space delimited by the latter; mutual union of the corresponding outer edges of said sections 39a, b, c, d, and of the aforementioned side bands 21a, b, c, d, e, f, g and of said side areas 29a, b completing the internal surfaces of said container , to obtain two other side walls 8b, c, d, and of said container 4,14,24,34,44,54; introducing the product to be packaged into said container; mutual union of the aforementioned transverse flaps 32a, b, c, d to close the corresponding head of said container; folding of the aforementioned sectors 36a, b, c, 37a, b, c, 38a, 39a, b defined in said edges 31a, b, c, d, to complete the upper head.

2) Method for making a container, in particular for liquids, obtained from a rolled tape material with said container consisting of a flat head whose sides are articulated as many side walls ending with shaped and folded flaps to form a head of closing said container; said method being characterized by providing: obtaining a strip 103 from which a blank 13, 23, 33, 43, 53 will subsequently be obtained, to the longitudinal sides of the internal facade of said strip being applied, to define the longitudinal edges of the strip, ribbons 103a, 103b of heat-sealable material , projecting transversely with respect to the strip itself, with the latter affected by a first series of creases 15a, b, c, d, e, 16b, c on said strip 103, to define a central quadrilateral area 18a, b, located between two lateral areas 19a, b, c, d, e, f, g, h opposite and symmetrical with respect to the transverse axis Y of said central area 18a, b and said lateral areas 19a, b, c, d, e, f, g , h interposed between two lateral bands 21a, b, c, d, e, f, g, longitudinal, being also provided for the tracing of two symmetrical pairs, with respect to the transverse axis Y of said central area 18a, b, of lines, respectively internal 25a, b and external 26a, b with respect to said transverse axis Y of said central area, originating from corresponding angles of said central area 18a, b, with the lines 25a, b, 26a, b of each pair diverging according to predetermined angles and extending up to the corresponding longitudinal edge of said strip 103 to identify on each side of said central area 18a, b a lateral completion zone 29a, b between the two innermost lines 25a, b and the edge 28a, b of said central area 18a, b between them, as well as by a second series of creases 16a, 16d, 45a, 45b able to define, in correspondence with each of the opposite transverse ends of said strip 103, a flap 31a, b, c, d, to whose transverse edge a transversal flap 32a, b, c, d is articulated and which is affected by a broken line creasing 35a, b, c, d, having a transversal development, to obtain a series of sectors 36a, b, 37a, b, 38a, 39a, b; the folding, in correspondence of the creases 16b, c of articulation to the aforementioned central area 18a, b, of said lateral areas 19a, b, c, d, e, f, g, h on the same side, with simultaneous folding of said bands side 21a, b, c, d, e, f, g, along the aforementioned innermost lines 25a, b with respect to the transverse axis Y of the same central area 18a, b, to define two side walls 8a of said container 4,14 , 24,34,44,54, with consequent definition of said lateral completion zones 29a, b; the folding of said lateral completion zones 29a, b towards the space included between the two folded lateral areas 19a, b, c, d, e, f, g, h, with folding of said lateral bands 21a, b, c, d , e, f, g along the aforementioned lines 26a, b outermost with respect to said transverse axis Y; folding of the sections 39a, b, c, d, and of said side bands 21a, b, c, d, e, f, g corresponding to the aforementioned side areas 19a, b, c, d, e, f, g, h, closing the space delimited by the latter; mutual union of the corresponding outer edges of said sections 39a, b, c, d, and of the aforementioned side bands 21a, b, c, d, e, f, g and of said side areas 29a, b completing the internal surfaces of said container / to obtain two other side walls 8b / C, d / e of said container 4 / 14,24,34,44,54; introducing the product to be packaged into said container; mutual union of the aforementioned transverse flaps 32a, b, c, d to close the corresponding head of said container; folding of the aforementioned sectors 36a, b, c, 37a, b, c, 38a, 39a, b defined in said edges 31a, b, c, d, to complete the upper head.

3) Method according to claim 1 or 2, characterized in that the aforementioned broken line 35a, b made on each of said flaps 31a, b, in cooperation with the transverse creasing 16a, d of articulation of the same flap to the corresponding lateral area 19a, b and with the joint creasing 45a, b of said transversal flap 32a, b to the respective flap, identifies a series of triangular sectors 36a, 37a, 38a, 39a, b of which a central sector 36a, in the shape of an isosceles triangle having the base lying on the transversal crease 16a, d defining the corresponding transversal edge of the respective lateral area, as well as having two other coincident triangles adjacent to it, overturned and divided along their axis of symmetry by the extension of the creases 15a, b defining the aforementioned bands lateral 21a, b according to two right-angled triangles 37a, 38a having a common cathetus, two right-angled triangles 39a, b being also delimited by the outermost hypotenuses of the aforementioned triango the outermost rectangles 37a and from the outer edges of said blank; being the distance ZI between the creasing 16a, d defining the internal limit of each of said flaps 31a, b, and that of delimiting said transversal flaps 32a, b, greater than half the width Z of said lateral areas 19a, b so that once the sectors 36a, 37a, 38a, 39a, b constituting said flaps have been folded, after the union of said transversal flaps 32a, b, said sectors 36a, 37a, 38a, 39a, b remain turned towards the inside of said container to define a seat 30.

4) Method according to claim 1 or 2, characterized in that the aforementioned broken line 35c, d made on each of said flaps 31c, d, in cooperation with the transversal creasing 16e, f of articulation of the same flap 31c, d to corresponding lateral area 19e, f and with the creasing of the articulation of said transversal flap 32c, d to the respective flap, identifies a central sector 36b, c in the shape of an isosceles triangle having the base lying on the transversal creasing 16e, f defining the corresponding transversal edge of the respective lateral area 19e, f, and two right-angled triangles 37b, c having the hypotenuse lying on the respective oblique side of said sector 36b, c in the shape of an isosceles triangle, with two rectangular sectors 41a, b bilaterally displaced with respect to the group formed by said sectors triangular 36b, c, 37b, c; being the distance r between the creasing 16e, f defining the internal limit of each of said flaps 31c, d, and that of delimiting said transversal flaps 32c, d, equal to half the width Z of said lateral areas 19e, f, in so that once the sectors 36b, c, 37b, c, 41a, b constituting said flaps 31c, d have been folded, after the union of said transversal flaps 32c, d, two spouts 42a, b protruding from the lower head of said container 34 towards the outside, and designed to be folded each towards the corresponding wall of said container 34 and to be joined to the external surface of the same.

5) Method according to claim 1 or 2, characterized by the fact of providing for the creation of a pair of said internal lines 25b converging on the corresponding longitudinal edge of said blank 23, to define at least one of said lateral areas 29b of completion with a triangular shape, as well as the realization of a pair of said external lines 26b parallel to the aforementioned transverse axis Y, so that during the folding of said lateral areas 19c, d, and subsequently during the folding of the same side areas 29b of completion along the corresponding edge 28b of said central area 18b is defined as a spout 40 extending from the upper head 27 of said container 24 outwards, and intended to be bent towards the corresponding wall of said container and to be joined to the external surface of the same.

6) Method according to claim 1 or 2, characterized in that the distance s between a longitudinal creasing 15c defining only the lateral band 21d, and the corresponding longitudinal edge of said blank 43, is less than half the width Z of said lateral areas 19g, so that after the bending of said lateral bands the longitudinal edges of two contiguous sections 39c are spaced apart from each other, while the union of the two same sections takes place using the aforementioned heat-sealable edges which protrude laterally from said blank 43 , so as to leave a transparent window 5 along the entire wall 8c of said container 44, for checking the quantity of the content.

7) Method according to claim 1 or 2, characterized in that the distance u between both longitudinal creases 15d, and defining the two side bands 21f, g and the corresponding longitudinal edge of said blank 53, is less than half the width Z of said lateral areas 19h, so that after the folding of said lateral bands the longitudinal edges of the two pairs of sections 39d, and respectively contiguous, are spaced apart from each other, while the union of the two same sections 39d, and takes place using the aforementioned heat-sealable edges which protrude laterally from said blank 53, so as to leave a transparent window 55 along both walls 8d, and of said container 54, for checking the quantity of the contents.

8) Method according to claim 1 or 2, characterized in that it provides for the realization in said strip 3.103 of a hole 10 located inside said central area 18a, as well as the subsequent affixing of a cap 11 to close said hole 10, with said cap projecting outwardly and intended to be inserted into the aforementioned seat 30 of an overlying container 4 when the said containers thus obtained are stacked and packaged in regular groups.

9) Method according to rev. 1 or 2, characterized in that it provides for the realization on said strip 3,103 of a hole 10 located inside said central area 18a and the subsequent affixing of a perforable membrane 6 to close said hole 10.

10) Method according to claim 1 or 2, characterized in that the union of the constituent parts of said container takes place by means of heat sealing.

11) Method according to claim 1, wherein said strip-laminated material has the longitudinal edges 3a, 3b sealed, characterized in that said strip 3 is obtained by transversal cutting of said strip.

12) Method according to claim 2, characterized in that said strip 103 is obtained by transversal cutting of the rolled strip material, and in that the longitudinal edges of said strip 103 are defined by the protruding portions of two applied strips 103a, 103b to respective longitudinal sides of said strip in correspondence with the internal face of the latter.

13) Method according to claim 1 or 2, characterized in that prior to the introduction into the container of the product to be packaged, the same container is sterilized.

14) Container, in particular for liquids, obtained from a rolled material in tape 1, said container being constituted by a flat head 7,17,27 whose sides are articulated as many side walls 8a, b, c, d, e, ending with shaped and folded flaps to form a closing head of said container; said container 4,14,24,34,44,54 being also characterized in that it is made with a rectangular strip 3,103 of laminated material 1, whose longitudinal edges 3a, 3b, 103a, 103b are made of heat-sealable material and comprise : an upper head 7,17,27, obtained with a single portion of said material constituting a central area 18a, b of a blank 13,23,33,43,53; two lateral walls 8a, articulated to said upper head, consisting of unitary portions of said material, identifying with lateral areas 19a, b, c, d, e, f, g, h drawn on said blank 13,23,33,43, 53; two lateral walls 8b, c, d, e, articulated to said upper head, consisting of two pairs of sections 39a, b, c, d, e, corresponding to said lateral areas 19a, b, c, d, e, f, g, h, of lateral bands 2a, b, c, d, e, f, g articulated to said lateral areas and folded along corresponding longitudinal creases 15a, b, c, d, e, said sections being mutually joined in pairs along the respective longitudinal edges; two lateral completion zones 29a, b articulated to the sides of said upper head 7,17,27 and corresponding to said walls 8b, c, d, e composed and defined by transversal creases arranged according to pairs of internal lines 25a, b and external 26a , b made on said side bands 21a, b, c, d, e, f, g, said side areas 29a, b being folded inside said container and fixed to the internal surface of the corresponding side walls 8b, c, d, And; a lower head 12, 22 closed by two transversal flaps 32a, b, c, d mutually joined and articulated with flaps 31a, b, c, d, in turn divided, by means of broken creases 35a, b, c, d, in addition sectors 36a, b, c, 37a, b, c, 38ar39a, b, 41a, b folded and articulated to said side walls.

15) Container according to rev. 14, characterized in that the aforementioned broken line 35a, b made on each of said flaps 31a, b, in cooperation with the transverse creasing 16a, d of articulation of the same flap to the corresponding lateral area 19a, b, c, d, g, h, and with the joint creasing 45a, b of said transversal flap 32a, b to the respective flap, identifies a series of triangular sectors 36a, 37a, 38a, 39a of which a central sector 36a, in the shape of a triangle isosceles and having the base lying on the transverse crease 16a, d defining the corresponding transverse edge of the respective lateral area, as well as having two other coincident triangles adjacent to it, overturned and divided along their axis of symmetry by the extension of the creases 15a, b defining the cited lateral bands 21a, b according to two right-angled triangles 37a, 38a having a common side, two right-angled triangles 39a, b being also delimited by the outermost hypotenuses of the aforementioned right-angled triangles 37a outermost and from the outer edges of said blank; being the distance ZI between the creasing 16a, d defining the internal limit of each of said flaps 31a, b, and that of delimiting said transversal flaps 32a, b greater than half the width Z of said lateral areas 19a, b, c, d, g, h and of said central area, so that said sectors 36a, 37a, 38a, 39a, b remain turned towards the inside of said container 4 to define a seat 30.

16) Container according to rev. 14, characterized in that the aforementioned broken line 35c, d made on each of said flaps 31c, d, in cooperation with the transverse creasing 16e, f for articulation of the same flap 31c, d to the corresponding lateral area 19e, f and with the articulation creasing of said transversal flap 32c, d to the respective flap, identifies a central sector 36b, c in the shape of an isosceles triangle having the base lying on the transversal creasing 16e, f defining the corresponding transverse edge of the respective lateral area 19e, f, e two right-angled triangles 37b, c having the hypotenuse lying on the respective oblique side of said sector 36b, c in the shape of an isosceles triangle, with two rectangular sectors 41a, b bilaterally displaced with respect to the group formed by said triangular sectors 36b, c, 37b, c ; being the distance r between the creasing 16e, f defining the internal limit of each of said flaps 31c, d, and that of delimiting said transversal flaps 32c, d equal to half the width Z of said lateral areas 19e, f, so that two spouts 42a, b project outwards from the lower head of said container 34, each bent towards the corresponding wall of said container and joined to the external surface of the same.

17) Container according to claim 14, characterized in that it comprises a spout 40 extending from the upper head 27 of said container 24 outwards, and bent towards the corresponding wall of said container as well as joined to the external surface of the same.

18) Container according to claim 14, characterized in that the width s of one of the two side bands 21d is less than half the width Z of the wall 8c constituted by them, so that the longitudinal edges of the two sections 39c of the side band 21d are spaced apart from each other, while the union of the two same sections is obtained using the aforementioned heat-sealable edges 3a, 3b, 103a, 103b which protrude laterally from said strip 3,103 so as to leave a transparent window 5 along the entire wall 8c of said container 44, for controlling the quantity of the content.

19) Container according to claim 14, characterized in that the width u of the two side bands 21e, f is less than half the width Z of the wall 8d constituted by them, so that the longitudinal edges of the two pairs of sections 39d, and respectively contiguous are spaced apart from each other, while the union of the two same sections is obtained using the aforementioned heat-sealable edges 3a, 3b, 103a, 103b which protrude laterally from said strip 3,103 so as to leave a transparent window 55 along both sides walls of said container 54, for controlling the quantity of the content.

20) Container according to claim 15, characterized by the fact that on its upper head 7 there is a hole 10 through which a cap 11 protruding outwards and destined to enter the aforementioned seat 30 of an overlying container passes when the the containers 4 thus obtained are stacked and packaged in regular groups.

21) Container according to claim 14, characterized in that a hole 10 is made on its upper head 17 on which a perforable membrane 6 is affixed to close said hole.

22) Container according to claim 14, characterized in that said strip 3 has the longitudinal edges 3a, 3b sealed.

23) Container according to claim 14, characterized in that the longitudinal edges of said strip 103 are defined by the protruding portions of two tapes 103a, 103b applied to respective longitudinal sides of the strip itself in correspondence with the internal face of the latter.

24) Blank for obtaining a container 4,14,24,34,44,54, in particular for liquids, obtained from a rolled material in strip 1, said container being constituted by a flat head 7,17,27 at the sides of which are articulated as many side walls 8a, b, c, d, terminating with shaped and folded flaps to form a closing head of said container; said blank being characterized in that it comprises a strip 3,103 of laminated material, whose longitudinal edges 3a, 3b, 103a, 103b are made of heat-sealable material, on which longitudinal creases 15a, b, c, d, e, and transversal areas 16b, c, which define a central quadrilateral area 18a, b, located between two lateral areas 19a, b, c, d, e, f, g, h opposite and symmetrical with respect to the transverse axis Y of said central area, with said central area and said lateral areas 19a, b, c, d, e, f, g, h interposed between two longitudinal lateral bands 21a, b, c, d, e, f, g, affected in the median area by two pairs symmetrical, with respect to the transverse axis Y of said central area 18a, b, of internal lines 25a, b and external 26a, b respectively, originating from corresponding angles of said central area, with the lines of each pair diverging and developing up to the corresponding longitudinal edge of said blank so as to delimit on each side d i said central area a lateral completion zone 29a, b comprised between the two innermost lines 25a, b and the edge 28a, b of said central area, other transversal creases 16a, d, 45a, 45b being also made which define, in correspondence of each of the opposite transversal ends of said blank 13,23,33,43,53 a flap 31a, b, c, d to whose transverse edge a transversal flap 32a, b, c, d is articulated and which is affected by a creasing a broken line 35a, b, c, d having transversal development.

25) Blank according to claim 24, characterized in that the aforementioned broken line creasing 35a, b made on each of said flaps 31a, b, in cooperation with the transverse creasing 16a, d articulates the same flap to the corresponding area 19a, b, and with the creasing of the articulation of said transversal flap 32a, b to the respective flap 31a, b, identifies a series of triangular sectors 36a, 37a, 38a, 39a, b, of which the central sector 36a has the shape of an isosceles triangle having the base lying on the transverse creasing 16a defining the corresponding transverse edge of the respective lateral area 19a, as well as having two other coincident triangles adjacent to it, overturned and divided along their axis of symmetry by the extension of the longitudinal creases 15a, b defining the aforementioned side bands 21a, b, according to two sectors 373,383 in the shape of right triangles having a common cathetus, with two sectors 39a, b in the shape of right triangles them also delimited by the outermost oblique sides of the aforementioned outermost sectors 37a and by the external edges of said blank 13, while the distance ZI between the creasing 16a, 16d defining the internal limit of each of said edges 31a, b, and the delimiting one of said transversal flaps 32a, b is greater than half the width Z of said lateral areas 19a, b so as to allow that once the sectors 36a, 37a, 38a, 39a, b constituting said edges 31a, b have been folded, after the union of said transversal flaps 32a, b, said sectors 36a, 37a, 38a, 39a, b remain turned towards the inside of said container 4 to define a seat 30.

26) Blank according to claim 24, characterized in that the aforementioned broken line 35c, d made on each of said flaps 31c, d, in cooperation with the transverse creasing 16e, f of articulation of the same flap 31c, d to the corresponding lateral area 19e, f and with the articulation creasing of said transversal flap 32c, d to the respective flap, identifies a central sector 36b, c in the shape of an isosceles triangle having the base lying on the transverse creasing 16e, f defining the corresponding transverse edge of the respective lateral area 19e, f, and two sectors 37b, c in the shape of right-angled triangles having the hypotenuse lying on the respective oblique side of said sector 36b, c in the shape of an isosceles triangle, with two rectangular sectors 41a, b bilaterally displaced with respect to the group formed by said sectors 36b, c, 37b, c; being the distance r between the creasing 16e, f defining the internal limit of each of said edges 31c, d, and that of delimiting said transversal flaps 32c, d equal to half the width Z of said lateral areas 19e, f, so to give rise to the forming, during the folding of the sectors 36b, c, 37b, c, 41a, b constituting said edges 31c, d, after the union of said transversal flaps 32c, d, of two spouts 42a, b protruding from the head bottom of said container 34 towards the outside, and designed to be folded each towards the corresponding wall of said container and to be joined to the external surface of the same.

27) Blank according to claim 24, characterized in that a pair of said lines drawn on said lateral bands 21c, have the innermost lines 25b converging on the corresponding longitudinal edge of said blank 23, to define at least one of said lateral zones 29b completion with a triangular shape, while the corresponding pair of external lines 26b are parallel to the transverse axis Y, so that during the folding of said lateral areas 19c, d, along the corresponding edge 28b of said central area 18b, and subsequently during the folding of the same lateral completion zones 29b, a spout 40 is defined, extending from the upper head 27 of said container 24 towards the outside, and intended to be folded towards the corresponding wall of said container and to be joined to the external surface of the same . 28> Blank according to claim 24, characterized in that the distance s between the creasing 15c defining the lateral band 21d, and the corresponding longitudinal edge of said blank 43, is less than half the width Z of said lateral areas 19g, in so as to give rise, after the folding of said lateral bands, to longitudinal edges such that two contiguous sections 39c are spaced apart from each other, with the union of the latter carried out using the aforementioned heat-sealable edges 3a, 3b, 103a, 103b which protrude laterally from said blank 43, so as to leave a transparent window 5 along the entire wall 8c of said container 44, for checking the quantity of the contents. 29) blank according to claim 24, characterized in that the distance u between both creases 15d, 15e defining the two side bands 21f, g and the corresponding longitudinal edge of said blank 53, is less than half the width Z of said blank lateral areas 19h, so as to allow that after the folding of said lateral bands the longitudinal edges of the two pairs of sections 39d, and respectively contiguous, are spaced apart from each other, while the union of the two same sections takes place using the aforementioned heat-sealable edges 3a, 3b, 103a, 103b which protrude laterally from said blank 53, so as to leave a transparent window 55 along both walls of said container 54, for checking the quantity of the contents. 30) Blank according to claim 25, characterized in that it is affected, in correspondence with said central area 18a, b, by a hole 10 through which a plug 11 is intended to pass which remains protruding towards the outside and which is fixed to the same central area. 31) Blank according to claim 24, characterized in that it is affected in correspondence with said central area 18a, b, by a hole 10 which is intended to be subsequently closed by a perforable membrane 6. 32) Blank according to claim 24, characterized in that said strip 3 has the longitudinal edges 3a, 3b sealed. 33) Blank according to claim 24, characterized in that the longitudinal edges of said strip 103 are defined by the protruding portions of two strips 103a, 103b applied to respective longitudinal sides of the strip itself in correspondence with the internal face of the latter. 34) Method and blank for making a container, as well as container obtained by means of this method, substantially as described, claimed, illustrated in the attached drawing tables and for the aforementioned purposes.