EP0063868A1 - Emballage - Google Patents
Emballage Download PDFInfo
- Publication number
- EP0063868A1 EP0063868A1 EP82301587A EP82301587A EP0063868A1 EP 0063868 A1 EP0063868 A1 EP 0063868A1 EP 82301587 A EP82301587 A EP 82301587A EP 82301587 A EP82301587 A EP 82301587A EP 0063868 A1 EP0063868 A1 EP 0063868A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- edge
- folded
- zone
- plastics
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
- B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
- B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
- B31F1/0019—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs the plates, sheets or webs moving continuously
- B31F1/0022—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs the plates, sheets or webs moving continuously combined with making folding lines
- B31F1/0025—Making the folding lines using rotary tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
- B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
- B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
- B31F1/0019—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs the plates, sheets or webs moving continuously
- B31F1/0029—Folding edges; Folding edges combined with joining; Reinforcing edges during the folding thereof, e.g. by introducing a thread; Folding the edges of a sheathing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/22—Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement
Definitions
- This invention relates to packaging material, ana packages formed therefrom.
- Packaging material in accordance with the invention is applicable to the production of a known form of packaging container, and will be described with reference to that application, but it should be understood that the packaging material described is not limited solely to that use.
- the known form of packaging referred to above is produced by bonding together two webs of material one of which is shaped by an endless chain of moulds into a series of deep channels extending transversely of the web and partitioned from one another by upstanding folded walls of the web, while the other web has edge zones divided into flaps.
- the undivided middle portion of the second-mentioned web is applied, and bonded, to the upper edges of the partitioning walls of the first-mentioned web, and the said side flaps folded down and sealed to the edges of the channels of the first-mentioned web, forming a chain of interconnected closed containers which can be separated from one another.
- the aforesaid known containers have been made from webs of foamed plastics materials provided with surface coatings of homogeneous plastics suitable for heat-sealing.
- the use of such materials renders these containers too expensive for some intended uses, and the main purpose of this invention is to provide a packaging laminate of cheaper materials suitable for forming into a cheaper variety of the aforesaid known containers, and for other packaging purposes.
- the invention consists in a packaging material in laminate sheet or web form incorporating a layer of paper and an outer coating layer of plastics on each face, adapted for edge-bonding, e.g. by butt welding or L-joint or T-joint welding, wherein an edge strip of the material is thickened, and formed with a heat-sealable outer plastics surface.
- the edge zone or zones may be thickened by folding.
- the line of folding may be defined by an impressed crease-line. After such folding the ridge of the crease-line upstanding from one face of the material should project inwards between the areas folded together.
- the invention further consists in a method of, and an apparatus for, the production of packaging material as specified in the next preceding paragraph.
- a lower web 1 of packaging material is formed by moulds into double-fold, spaced, upstanding walls 2 defining between them valleys or channels extending transversely of the web.
- a second, upper web has a middle longitudinal zone 3 of substantially the same width as the top edges of the walls 2 of the lower web, and flaps 4 extending from the edges of the zone 3, dimensioned to correspond substantially to the end sections of the channels between the walls 2 of the lower web.
- FIG. 1 An example of means for moulding web 1, shown in Figure 1, is illustrated in Figure 2.
- a series of mould units 5 articulated to form an endless chain provide successive mould channels between adjacent units, and a rotatable roller array 6 presses down the flat web 1 into these channels where it conforms with the mould chain and is provided with upstanding transverse double fold walls with channels between them, substantially as illustrated in Figure 1, noting, however, that in Figure 2 the lower part of each channel is substantially semi-cylindrical rather than rectangular.
- a machine incorporating such a mould chain is disclosed in British Patent Specification No. 1487693 from which Figure 2 is taken.
- webs 1 and 3,4 shown in Figures 1 and 2 have heretofore been formed of foamed plastics material (e.g. polyethylene or polystyrene) with a homogeneous plastics coating layer on each face (e.g. of similar plastics materials), but such materials render the product undesirably expensive for some purposes.
- foamed plastics material e.g. polyethylene or polystyrene
- a homogeneous plastics coating layer on each face e.g. of similar plastics materials
- the present invention contemplates the replacement of at least the web 1 by a web of plastics-coated paper, which is substantially cheaper.
- a problem arising from such a replacement lies in the difficulty of firmly sealing the folded-down flaps 4 of the upper web to the edges of the channel-formed lower web 1 of plastics-coated paper.
- the web 1, here formed of paper provided with plastics coating on each face is fed to the apparatus over a guide roller 7.
- the paper may be of the kind known as "Duplex" paper with the fibres of one face (intended for the outer surface of a carton formed from the web) being bleached, and the fibres of the opposite face unbleached.
- Each face of the paper web is coated with an affixed plastics film (e.g. of polyethylene).
- the roller 7 is provided with flanges 8 to prevent lateral displacement of the advancing web, as it proceeds over the upper roller 9 of a pair of rollers 9,10 urged together by adjustable pressure- spring means 11. Passing round part of the roller 9 the web passes through the nip between the rollers 9,10, which, also are flanged to locate the web.
- roller 9 Adjacent to, but slightly spaced from, each flange the roller 9 is provided with a peripheral groove 12 (exposed by the partially broken away flange in Figure 5), and in like position the roller 10 is provided with cooperating upstanding ribs or ridges 13.
- the narrow edge zone outside the groove 14 is folded towards, and sealed to, the middle zone of the web, and for this purpose the web proceeds past heating means 15 which soften the plastics coating of the web in readiness for bonding, and folding means 15a by which the edge zones are folded inwards.
- a convenient form of heating means is illustrated in Figures 8, 9 and 10.
- a U-shaped tube 15 is provided at its mid-point with a hot-air inlet duct 16.
- the side limbs of the tube are substantially parallel, and the width of the heater corresponds substantially to the width of the web.
- the heater is positioned so that the side limbs are located over the edges of the web which advances beneath the heater in a direction parallel to the axes of the side limbs.
- the undersides of the side limbs are apertured or slotted as at 17, and hot air is directed through these openings onto the edge'zones of the passing web, to soften the plastics coating thereon for sealing.
- the heater shown in perspective in Figure 8, is illustrated in section in Figure 9, and a side-section of a side limb shown in Figure 10.
- a rigid plate 18, e.g. of metal, is substantially flat at the end first approached by the web, but one half 19 of the plate on one side of the longitudinal centre-line of the plate is twisted in relation to the other half 20 of the plate, so that proceeding along the plate from the flat end to the other end, the twisted half 19 of the plate becomes increasingly inclined to the other half 20, until it is perpendicular thereto, and thereafter continues to an increasingly acute angle in relation to the other half 20, until it is folded into a position parallel to, and only slightly spaced from the other half 20.
- the outer edge of the web is adjacent to the outer edge of the portion 19 of the plate, and as it advances the edge zone of the web is gradually folded up and over by the twisted length 19 of the plate until, at the remote end of the plate it is folded flat against the inner web surface.
- Successive stages of this folding operation are illustrated in Figure 11 by cross-sections of the plate at different points along its length.
- the plate may be fitted with rollers or replaced by a frame or race of rollers.
- a folder- device is provided at each edge of the web.
- the surface of the web which is heated is the surface intended to be the outer surface of a container made from the web, and it follows that as a result of the folding the plastics coating of the web surface intended to be the inner surface of a container extends round the folded web edge and appears as a narrow edge zone on the other web face.
- each edge groove 14 in the web provided by the rollers 9,10 runs on to a folder-plate substantially in line with the centre line of the plate and with the crease ( Figure 7) upstanding therefrom.
- the crease is directed inwardly between the web and its folded-over edge zone, as illustrated in Figure 12.
- the folded heated edge zones are pressed into sealing contact with the web by roller means. Since the web may be curved when being moulded in the course of forming containers ( Figure 2), the web may be formed with a curl or curvature in the face of the web which is to be the interior surface of a container. This effect. may be achieved by pressing the web against a rotating cylindrical surface when sealing the folded edge zones.
- a pressure roller 21 running beneath each folded web edge presses the edge against a cylinder 22 provided with flanges 23 to prevent lateral displacement of the web.
- the diameter of the cylinder 22 is selected according to the degree of curl or curvature desired in the finished web.
- the roller 21 with appropriate pressure seals the folded edge zone to the body of the web.
- the edge of the roller 21 immediately adjacent to the portion of the folded edge which is thickened by the folding and by the inwardly directed crease ( Figure 12) is rounded or chamfered as at 24 in order to avoid flattening of this thickened, plastics-faced edge.
- the finished web is drawn off and formed into a roll for subsequent presentation to a package-forming machine.
- a web of packaging material in accordance with the invention as described above may conveniently be used for the lower web 1 in the procedure referred to with reference to Figures 1 and 2 of the drawings herewith, when it is moulded into transverse channel shape in moulds such as illustrated in Figure 2.
- the upper web 3, 4 ( Figure 1) when used with a web of material in accordance with this invention may be of the kind heretofore used (e.g. of foamed plastics material with plastics-coated surfaces) or it may also be formed of material in accordance with this invention.
- the thickened edge of the lower web 1 is attached to the flaps of the upper web by butt-welding, or L-or T-joint welds.
- the heat-sealable plastics surface at the thickened edge of the lower web should be of the same plastics-coating material as that of the upper web to which it is to be bonded.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Cartons (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Packages (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82301587T ATE13993T1 (de) | 1981-04-16 | 1982-03-25 | Verpackungsgegenstand. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8112214 | 1981-04-16 | ||
GB8112214A GB2098921B (en) | 1981-04-16 | 1981-04-16 | Packaging material and packages formed therefrom |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0063868A1 true EP0063868A1 (fr) | 1982-11-03 |
EP0063868B1 EP0063868B1 (fr) | 1985-06-26 |
Family
ID=10521241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82301587A Expired EP0063868B1 (fr) | 1981-04-16 | 1982-03-25 | Emballage |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0063868B1 (fr) |
JP (1) | JPS57181849A (fr) |
AT (1) | ATE13993T1 (fr) |
AU (1) | AU556239B2 (fr) |
DE (1) | DE3264391D1 (fr) |
GB (1) | GB2098921B (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2540847A1 (fr) * | 1983-02-15 | 1984-08-17 | Jabouley Cie Manufacture Jh | Procede et dispositif de reliage de rubans ou bandes de tissu decoupe |
EP0557789A1 (fr) * | 1992-02-28 | 1993-09-01 | RXS Kabelgarnituren Gesellschaft mit beschränkter Haftung | Procédé pour former des profils à section en forme de champignon, ayant fonction d'éléments de fermeture sur des bandes en matière plastique thermorétractable |
EP1095759A2 (fr) * | 1999-10-28 | 2001-05-02 | Illinois Tool Works Inc. | Film étiré ayant les bords thermosoudés |
WO2005023693A1 (fr) * | 2003-09-04 | 2005-03-17 | Sesam Plastics Ab | Procede et appareil de formation d'un rebord qui s'epaissit le long d'un materiau de bande et materiau de bande ainsi forme |
WO2007139466A1 (fr) * | 2006-05-26 | 2007-12-06 | Pronova Ab | Bande de support ou de transport |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4572752A (en) * | 1982-11-12 | 1986-02-25 | Adolph Coors Company | Control stretch laminating device |
DE3921713C1 (fr) * | 1989-06-06 | 1990-03-08 | Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern, De |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1411779A (en) * | 1919-07-25 | 1922-04-04 | Plastoid Products Inc | Paper-folding machine |
GB224237A (fr) * | 1923-10-29 | 1925-02-26 | Burkhard Bernhard Schweitzer | |
US2219174A (en) * | 1939-04-11 | 1940-10-22 | Terkelsen Machine Company | Folder |
US2477355A (en) * | 1946-05-07 | 1949-07-26 | Henry T Bacon Inc | Flange bender |
US2540844A (en) * | 1947-11-28 | 1951-02-06 | Allis Chalmers Mfg Co | Web folding machine |
US2844078A (en) * | 1953-07-13 | 1958-07-22 | Continental Can Co | Folding machine for the manufacture of paperboard boxes and the like |
FR1402125A (fr) * | 1964-04-30 | 1965-06-11 | Procédé et appareillage de jonction étanche de matières en feuilles et leurs applications | |
GB1107579A (en) * | 1964-08-20 | 1968-03-27 | Holstein & Kappert Maschf | Processes for making rectangular tubes and devices for performing the processes |
FR2253619A1 (fr) * | 1973-12-05 | 1975-07-04 | Goodyear Tire & Rubber |
-
1981
- 1981-04-16 GB GB8112214A patent/GB2098921B/en not_active Expired
-
1982
- 1982-03-25 EP EP82301587A patent/EP0063868B1/fr not_active Expired
- 1982-03-25 AT AT82301587T patent/ATE13993T1/de active
- 1982-03-25 DE DE8282301587T patent/DE3264391D1/de not_active Expired
- 1982-04-02 AU AU82312/82A patent/AU556239B2/en not_active Ceased
- 1982-04-13 JP JP57062268A patent/JPS57181849A/ja active Granted
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1411779A (en) * | 1919-07-25 | 1922-04-04 | Plastoid Products Inc | Paper-folding machine |
GB224237A (fr) * | 1923-10-29 | 1925-02-26 | Burkhard Bernhard Schweitzer | |
US2219174A (en) * | 1939-04-11 | 1940-10-22 | Terkelsen Machine Company | Folder |
US2477355A (en) * | 1946-05-07 | 1949-07-26 | Henry T Bacon Inc | Flange bender |
US2540844A (en) * | 1947-11-28 | 1951-02-06 | Allis Chalmers Mfg Co | Web folding machine |
US2844078A (en) * | 1953-07-13 | 1958-07-22 | Continental Can Co | Folding machine for the manufacture of paperboard boxes and the like |
FR1402125A (fr) * | 1964-04-30 | 1965-06-11 | Procédé et appareillage de jonction étanche de matières en feuilles et leurs applications | |
GB1107579A (en) * | 1964-08-20 | 1968-03-27 | Holstein & Kappert Maschf | Processes for making rectangular tubes and devices for performing the processes |
FR2253619A1 (fr) * | 1973-12-05 | 1975-07-04 | Goodyear Tire & Rubber |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2540847A1 (fr) * | 1983-02-15 | 1984-08-17 | Jabouley Cie Manufacture Jh | Procede et dispositif de reliage de rubans ou bandes de tissu decoupe |
EP0557789A1 (fr) * | 1992-02-28 | 1993-09-01 | RXS Kabelgarnituren Gesellschaft mit beschränkter Haftung | Procédé pour former des profils à section en forme de champignon, ayant fonction d'éléments de fermeture sur des bandes en matière plastique thermorétractable |
US5419793A (en) * | 1992-02-28 | 1995-05-30 | Rxs Schrumpftechnik-Garnituren Gmbh | Method for forming closure elements with mushroom-shaped cross sections on a heat-shrinkable plastic web |
EP1095759A2 (fr) * | 1999-10-28 | 2001-05-02 | Illinois Tool Works Inc. | Film étiré ayant les bords thermosoudés |
EP1095759A3 (fr) * | 1999-10-28 | 2002-04-17 | Illinois Tool Works Inc. | Film étiré ayant les bords thermosoudés |
WO2005023693A1 (fr) * | 2003-09-04 | 2005-03-17 | Sesam Plastics Ab | Procede et appareil de formation d'un rebord qui s'epaissit le long d'un materiau de bande et materiau de bande ainsi forme |
EP2154094A1 (fr) * | 2003-09-04 | 2010-02-17 | Pronova Aktiebolag | Procédé et appareil pour former un bord s'épaississant le long d'un matériau en bande et matériau en bande ainsi formé |
WO2007139466A1 (fr) * | 2006-05-26 | 2007-12-06 | Pronova Ab | Bande de support ou de transport |
US8709580B2 (en) | 2006-05-26 | 2014-04-29 | Pronova Ab | Carrier or transport strip |
Also Published As
Publication number | Publication date |
---|---|
ATE13993T1 (de) | 1985-07-15 |
AU556239B2 (en) | 1986-10-30 |
DE3264391D1 (en) | 1985-08-01 |
GB2098921A (en) | 1982-12-01 |
JPS57181849A (en) | 1982-11-09 |
AU8231282A (en) | 1982-10-21 |
JPH05215B2 (fr) | 1993-01-05 |
GB2098921B (en) | 1984-12-05 |
EP0063868B1 (fr) | 1985-06-26 |
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