WO2000075022A1 - Procede d'obtention d'un emballage thermo-plastique en forme de boite - Google Patents
Procede d'obtention d'un emballage thermo-plastique en forme de boite Download PDFInfo
- Publication number
- WO2000075022A1 WO2000075022A1 PCT/FR2000/001515 FR0001515W WO0075022A1 WO 2000075022 A1 WO2000075022 A1 WO 2000075022A1 FR 0001515 W FR0001515 W FR 0001515W WO 0075022 A1 WO0075022 A1 WO 0075022A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- box
- flaps
- mouth
- hollow body
- packaging
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
- B29C49/4278—Cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2791/00—Shaping characteristics in general
- B29C2791/001—Shaping in several steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
Definitions
- the present invention relates generally to the packaging of any object, with a sheet of a thermoplastic material.
- European Patent No. 0 279 547 there is described a process for obtaining a thermo-plastic box-shaped packaging, more particularly shown in Figure 1, and comprising, in a single piece, a body whose wall has a large thickness, and a mouth whose wall has a small thickness; reference will be made more particularly to the representation of FIG. 4.
- a hollow body corresponding to the packaging according to FIG. 1 is formed by molding, that is to say extrusion-blowing. thanks to an extrusion die, the air gap of which can be adjusted in thickness.
- No posterior shaping of the mouth is carried out, so as to obtain a means of closing the packaging.
- a package is obtained in the traditional way, that is to say by thermoforming, in addition to the hollow body forming a box with a transverse mouth, four flaps, two of which are in two parts, and the other two of which are in one part, but arranged to be assembled one on the other towards the complementary elements.
- the parts of the first two flaps serve to seal the mouth of the box body, while the remaining parts, once assembled serve as handles.
- the flaps described above are obtained by thermoforming, with a cut corresponding to the shapes selected.
- the object of the present invention is to obtain a packaging of the "blister" type, with a much simpler technique than the traditional solution consisting in thermoforming a sheet of thermo-plastic material, then in laminating the sheet thus thermally formed, with the object to be wrapped or overwrapped, on a flat support, for example a sheet of cardboard.
- the wall in which are formed in a single piece, and the box and the upper part is of small and same thickness, for example 0.4 mm, to be at the times flexible enough to be deformed without significant constraint in said sheet, and rigid enough to withstand shocks, for example manipulation, and on the other hand the upper part opposite the bottom has a polyhedral shape integrating two flaps separate from the rest of the wall by folds, opposite and on either side of said mouth, whereby the two said flaps serve to seal the mouth and therefore to close the interior volume of the box.
- Thermoplastic packaging or overwrapping according to the invention can therefore be used in place of any packaging known in practice - under the term "blister".
- thermo-forming of a shell for example a tray, from a sheet of thermo-plastic material, both flexible and rigid, as defined above,
- the present invention therefore provides a new method of packaging, breaking with the traditional technique as defined above, simpler to implement, while preserving the traditional functions of packaging or overpacking of the type.
- FIG. 1 to 3 respectively represent three stages of a molding process of a thermoplastic material, by extrusion blow molding;
- - Figure 4 -represent a perspective view of a hollow body, as obtained at the end of the molding operation;
- - Figure 5 shows the same hollow body, with dotted lines, defining the areas to be taken up and shaped, for example by cutting;
- - Figure 6 shows in perspective the upper part of the box-shaped hollow body, obtained after shaping or recovery;
- FIG. 7 shows in perspective the upper part of the thermoplastic packaging, box-shaped, once closed, and closed;
- FIG. 8 shows, in perspective an assembly comprising, on the one hand a package as shown in Figure 7, the box being closed, and on the other hand an object contained and locked inside the box; this assembly is shown in its position of use, that is to say suspended from a presentation display;
- FIG. 9 represents in cross section a particular means of connection between the two flaps of a box as shown in FIGS. 6 to 8.
- thermo-plastic packaging 1 in the form of a box is obtained according to the present invention by the following operations: a) there is first of all a thermo-plastic material, for example polypropylene, capable of forming in the form of a thin sheet, for example 0.4 mm, a wall 2 both flexible enough to be deformed without significant stress, and rigid enough to withstand impacts, for example manipulation; preferably, the thermo-plastic material retained, mixed if necessary with appropriate additives, is transparent once formed and solid, that is to say in sheet in thin thickness; b) starting from the aforementioned thermo-plastic material, in the fluid state, a hollow body 4 is formed by molding in one piece, that is to say in a single piece a wall 2 in which are formed, on the one hand several flanks 22, 23, and one bottom 21, separated by folds 27, 29, 30, together determining a box-shaped volume with a mouth 5, and on the other hand at least two flaps 6 integrated in the wall 2, separated from the rest of the latter by folds 28, arranged opposite and on either side of the mouth
- the hollow body 4 obtained is taken up and shaped, at least to cut and separate at least the flaps 6 from the rest of the wall 2; whereby, at the end of these steps, after solidification of the thermo-plastic material, the desired box is obtained, having a one-piece structure, both rigid and flexible, and comprising the transverse mouth 5 for the introduction of a object 7 (cf. FIG. 8), the two flaps 6 used to close the abovementioned mouth, and therefore close the interior volume of the box; d) means are provided on the two flaps 6 for connecting to each other, ensuring that this box is closed; preferably, these connecting means 9 consist of a single line or strip of heat-sealing the flaps 6.
- (b) molding is carried out by extrusion blow molding, whereby the hollow body 4 obtained comprises a neck 26 or blow molding tail; and the resumption or shaping of the hollow body 4 comprises in particular the cutting or elimination of the neck 26.
- This extrusion blow molding traditionally includes:
- the extrusion blow molding can be replaced by an injection blow molding.
- the hollow body 4 has essentially a parallelepiped shape, surmounted by an upper part 24 of polyhedral shape.
- This parallelepiped shape consists of two lateral flanks 22 separated by two longitudinal flanks 23, connected together by folds 27, and by a bottom 21 connected to the aforementioned sides by folds 29 and 30.
- the polyhedral upper part 24 incorporates or integrates the two flaps 6, linked together by an upper fold, and separated by two parts or pieces 25 of triangular shape.
- Two folds 28 and 48 separate the polyhedral upper part 24 from the parallelepipedic remainder of the box, the whole remaining in the form of the hollow body 4 in one piece.
- the recovery and shaping of the hollow body essentially consists in cutting and separating at least the two triangular pieces 25 between the two flaps 6, then in separating these flaps, by cutting a strip 31, at the level of the upper fold between said flaps, whereby, at the same time the neck 26, or blowing tail, is eliminated from the hollow body 4.
- thermo-plastic packaging is then obtained, in the form of a box ready for use. If a tight packaging is desired, the parts 25 may not be cut, and left in place.
- these connecting means 9 can consist of pins 91, cooperating with cells 92, obtained by thermoforming on the two flaps 6 during step (b) of molding the thermo-plastic material.
- the hollow body 4 obtained is taken up and shaped, by cutting and perforating the two flaps 6 facing each other, for example adjacent to their connection zone 9, to obtain a or several orifices 10 passing through the two flaps linked to each other, right through.
- These orifices 10 are used, for example, to suspend the assembly shown in FIG. 8.
- a box-shaped packaging as shown in Figure 6, can be implemented in the traditional way:
- the wall and / or the thermoplastic material can be adapted according to the use and / or functions of the packaging.
- it may be any thermo-plastic material or wall, thermally insulating, or suitable for food contact for example.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Packages (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Making Paper Articles (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT00938876T ATE232814T1 (de) | 1999-06-02 | 2000-05-31 | Verfahren zur herstellung von schachtelförmigen verpackungsbehältern aus thermoplastischen kunststoffen |
EP00938876A EP1181198B1 (fr) | 1999-06-02 | 2000-05-31 | Procede d'obtention d'un emballage thermo-plastique en forme de boite |
AU54111/00A AU5411100A (en) | 1999-06-02 | 2000-05-31 | Method for the production of thermoplastic packaging in the form of a box |
DE60001454T DE60001454D1 (de) | 1999-06-02 | 2000-05-31 | Verfahren zur herstellung von schachtelförmigen verpackungsbehältern aus thermoplastischen kunststoffen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR99/07161 | 1999-06-02 | ||
FR9907161A FR2794428B1 (fr) | 1999-06-02 | 1999-06-02 | Procede d'obtention d'un emballage thermo-plastique en forme de boite |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000075022A1 true WO2000075022A1 (fr) | 2000-12-14 |
Family
ID=9546466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/001515 WO2000075022A1 (fr) | 1999-06-02 | 2000-05-31 | Procede d'obtention d'un emballage thermo-plastique en forme de boite |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1181198B1 (fr) |
AT (1) | ATE232814T1 (fr) |
AU (1) | AU5411100A (fr) |
DE (1) | DE60001454D1 (fr) |
FR (1) | FR2794428B1 (fr) |
WO (1) | WO2000075022A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH711690A1 (de) * | 2015-10-27 | 2017-04-28 | Alpla Werke Alwin Lehner Gmbh & Co Kg | Kunststofftube. |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0279547A1 (fr) | 1987-01-30 | 1988-08-24 | Robbins, Edward S., III | Récipient |
US5685478A (en) | 1996-03-18 | 1997-11-11 | Tang; Donald | Single piece container and method for making |
US5816484A (en) * | 1996-09-11 | 1998-10-06 | Wy Industries, Inc. | Food container |
-
1999
- 1999-06-02 FR FR9907161A patent/FR2794428B1/fr not_active Expired - Fee Related
-
2000
- 2000-05-31 AU AU54111/00A patent/AU5411100A/en not_active Abandoned
- 2000-05-31 DE DE60001454T patent/DE60001454D1/de not_active Expired - Lifetime
- 2000-05-31 EP EP00938876A patent/EP1181198B1/fr not_active Expired - Lifetime
- 2000-05-31 WO PCT/FR2000/001515 patent/WO2000075022A1/fr active IP Right Grant
- 2000-05-31 AT AT00938876T patent/ATE232814T1/de not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0279547A1 (fr) | 1987-01-30 | 1988-08-24 | Robbins, Edward S., III | Récipient |
US5685478A (en) | 1996-03-18 | 1997-11-11 | Tang; Donald | Single piece container and method for making |
US5816484A (en) * | 1996-09-11 | 1998-10-06 | Wy Industries, Inc. | Food container |
Also Published As
Publication number | Publication date |
---|---|
EP1181198A1 (fr) | 2002-02-27 |
EP1181198B1 (fr) | 2003-02-19 |
FR2794428B1 (fr) | 2001-08-10 |
FR2794428A1 (fr) | 2000-12-08 |
ATE232814T1 (de) | 2003-03-15 |
AU5411100A (en) | 2000-12-28 |
DE60001454D1 (de) | 2003-03-27 |
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