WO2011068606A1 - Récipient en plastique à structures de renforcement - Google Patents
Récipient en plastique à structures de renforcement Download PDFInfo
- Publication number
- WO2011068606A1 WO2011068606A1 PCT/US2010/054459 US2010054459W WO2011068606A1 WO 2011068606 A1 WO2011068606 A1 WO 2011068606A1 US 2010054459 W US2010054459 W US 2010054459W WO 2011068606 A1 WO2011068606 A1 WO 2011068606A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- medallion
- frame portion
- hot
- sides
- Prior art date
Links
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
- 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
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
-
- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
- B65D2501/0018—Ribs
- B65D2501/0036—Hollow circonferential ribs
Definitions
- the present invention is directed to the field of containers used with food products.
- the field of the invention is directed to hot-fillable plastic containers.
- Plastic blow-molded containers particularly those molded of PET, have been utilized in hot- fill applications where the container is filled with a liquid product heated to a temperature in excess of 180°F (82°C), capped immediately after filling, and allowed to cool to ambient temperatures.
- Plastic blow-molded containers have also been utilized in pasteurization and retort processes, where a filled and sealed container is subjected to thermal processing and is then cooled to ambient temperatures.
- PET containers are used more frequently today due to their durability and lightweight nature.
- Polyethylene terephthalate (PET) is used to construct many of today' s containers. PET containers are lightweight, inexpensive, recyclable and manufacturable in large quantities.
- PET containers are used for products, such as beverages. Often these liquid products, such as juices and isotonics, are placed into the containers while the liquid product is at an elevated temperature, typically between 68°C-96°C (155° F-205° F) and usually about 85°C. (185° F). When packaged in this manner, the hot temperature of the liquid is used to sterilize the container at the time of filling. This process is known as hot-filling.
- the containers that are designed to withstand the process are known as hot- fill containers
- the preferred design for a container has features that pose issues with respect to the underlying utility of the container. For example, during the pressure filling of the container with liquid the container may be damaged or creased. Furthermore, during the hot-fill process, when a plastic container is subjected to relatively high temperatures and pressures, the plastic container's shape will distort. Upon cooling, the plastic container may generally retain this distorted shape or at least fail to return to its pre hot- fill shape. Accordingly, there remains a need to provide plastic containers that can withstand the rigors of the hot- fill process in order to take advantage of the cost savings that can be realized through manufacture and recycling. The lighter weight of plastic containers as compared to glass can also advantageously reduce shipping costs.
- An object of the present invention may be a plastic container having structure located on the flex panels to prevent creasing during the fill process.
- Another object of the present invention may be medallions located on a flex panel.
- Still yet another object of the present invention may be a hot-fillable container with a plurality of flex panels having a plurality of medallions.
- An aspect of the present invention may be a plastic container comprising: a shoulder portion; a body portion located below the shoulder portion; a base portion located below the body portion; and wherein the body portion further comprises a flex panel and a medallion.
- Another aspect of the present invention may be a hot-fillable container comprising: a shoulder portion; a body portion located below the shoulder portion, wherein the body portion comprises a front side, a rear side and two sides further comprising flex panels; a base portion located below the body portion; and wherein a medallion is located on at least one of the flex panels.
- Still yet another aspect of the present invention may be a hot-fillable container comprising: a shoulder portion; a body portion located below the shoulder portion, wherein the body portion comprises a front side, a rear side and two sides further comprising flex panels; a base portion located below the body portion; and wherein a medallion is located on at least one of the flex panels, wherein the medallion further comprises a medallion apex, two medallion sides and a medallion base, wherein the medallion base is arc shaped.
- FIG. 1 is perspective view of a container made in accordance with the present invention.
- FIG. 2 is a side view of the container shown in FIG. 1.
- FIG. 3 is a front view of the container shown in FIG. 1
- FIG. 4 is a bottom view of the container shown in FIG. 1.
- FIG. 5 is a cross-sectional view of the container shown in FIG. 3 taken along the line 5-5.
- FIG. 6 is a cross-sectional view of the container shown in FIG. 3 taken along the line 6-6.
- FIG. 7 is perspective view of a container made in accordance with another embodiment of the present invention.
- FIG. 8 is a side view of the container shown in FIG. 7.
- FIG. 9 is a front view of the container shown in FIG. 7.
- FIG. 10 shows the stressed areas of a container without the medallion.
- FIG. 11 shows the stressed areas of a container with the medallion.
- FIG. 12 is flow chart showing the method for hot-filling a container.
- FIG. 1 showing a front view of a container 10 made in accordance with an embodiment of the present invention.
- the container 10 may be a one-piece construction and may be prepared from a monolayer plastic material, such as a polyamide, for example, nylon; a polyolefin such as polyethylene, for example, low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene, a polyester, for example, polyethylene terephthalate (PET), polyethylene naphtalate (PEN), or others, which may also include additives to vary the physical or chemical properties of the material. For example, some plastic resins may be modified to improve the oxygen permeability.
- the container may be prepared from a multilayer plastic material.
- the layers may be any plastic material, including virgin, recycled and reground material.
- the layers may include plastics or other materials with additives to improve physical properties of the container.
- other materials often used in multilayer plastic containers may be used including, for example, ethylvinyl alcohol (EVOH) and tie layers or binders to hold together materials that are subject to delamination when used in adjacent layers.
- EVOH ethylvinyl alcohol
- a coating may be applied over the monolayer or multilayer material to introduce oxygen barrier properties.
- the present container is prepared from PET.
- the container 10 is constructed to withstand the rigors of hot- fill processing, a retort process and/or pasteurization.
- the container 10 may be made by conventional blow molding processes including, for example, extrusion blow molding, stretch blow molding and injection blow molding. These molding processes are discussed briefly below.
- extrusion blow molding a molten tube of thermoplastic material, or plastic parison, is extruded between a pair of open blow mold halves. The blow mold halves close about the parison and cooperate to provide a cavity into which the parison is blown to form the container 10. As so formed, container 10 may include extra material, or flash, at the region where the molds come together. A moil may be intentionally present above the top portion of the container.
- the container 10 drops out and is then sent to a trimmer or cutter where any flash of moil attached to the container 10 is removed.
- the finished container 10 may have a visible ridge (not shown) formed where the two mold halves used to form the container came together. This ridge is often referred to as the parting line.
- a pre-formed parison, or pre-form is prepared from a thermoplastic material, typically by an injection molding process.
- the pre-form typically includes an opened end, which becomes part of the closure of the container 10.
- the pre-form is positioned between two open blow mold halves.
- the blow mold halves close about the preform and cooperate to provide a cavity into which the pre-form is blown to form the container 10. After molding, the mold halves open to release the container 10.
- thermoplastic material may be extruded through a rod into an injection mold in order to form a parison.
- the parison is then positioned between two open blow mold halves.
- the blow mold halves close about the parison and cooperate to provide a cavity into which the parison may be blown to form the container 10. After molding, the mold halves open to release the container 10.
- the plastic blow-molded containers are utilized in hot-fill applications and/or pasteurization. Hot-filling involves filling the container 10 with a liquid product heated to a temperature in excess of 180° F (i.e., 82°C), capped immediately after filling, and then allowed to cool to ambient temperatures.
- a liquid product heated to a temperature in excess of 180° F (i.e., 82°C)
- capped immediately after filling and then allowed to cool to ambient temperatures.
- Pasteurization and retort differ from hot-fill processing by including heating the filled container to a specified temperature, typically greater than 93 °C (200°F), until the contents of the filled container reach a specified temperature, for example 80°C (175°F), for a predetermined length of time. That is, the external temperature of the hot-filled container may be greater than 93 °C so that the internal temperature of a solid or semi-solid product reaches approximately 80°C.
- Retort processes may also involve applying overpressure to the container
- FIGS. 1-4 a cylindrical shaped container 10 is shown made in accordance with an embodiment of the present invention.
- the container 10 has a finish 12, an elongated neck
- the finish 12 may be a standard finish that can accommodate the placement of a twist on, twist off cap.
- the neck 14 extends downwards from the finish 12 to the shoulder portion 16. While the neck 14 is shown as being elongated it should be understood that the neck 14 may also be shorter in length.
- the shoulder portion 16 has a rounded surface that curves downward from the neck 14 to the circumferential rib 26. Located on the shoulder portion 16 may be a label area 19.
- the label area 19 may have an embossed surface that identifies the product that is within the container 10.
- the circumferential rib 26 is located beneath the shoulder portion 16.
- the circumferential rib 26 merges the shoulder portion 16 into the body portion 15.
- the circumferential rib 26 is recessed with respect to the shoulder portion 16 and the body portion
- the body portion 15 has four curved sides 24a, 24b and 32.
- the sides 24a and 24b have a plurality of ribs 20.
- the ribs 20 are recessed and provide structure to enable the placement of a label.
- the side 24a may be larger than the side 24b. That is to say the front side 24a is larger than the rear side 24b. This can be seen in the cross-sectional views of the container 10 shown in FIGS. 5 and 6.
- the sides 32 have vacuum flex panels 30.
- the vacuum flex panels 30 are surrounded by frames 22.
- the frame 22 may be thicker than the surrounding portions of the container 10.
- the frame 22 further assists in isolating the negative vacuum pressure that occurs during the hot- fill process so that it is focused in the vacuum flex panel 30.
- the frame 22 is comprised of the top frame portion 36, bottom frame portion 38, front frame portion 37 and rear frame portion 39.
- the front frame portion 37 is located closest to the front side 24a, while the rear frame portion 39 is located closest to the rear side 24b.
- the top frame portion 36 is located closest to the shoulder portion 16 and the bottom frame portion 38 is located closest to the base 18.
- the medallions 28 are tear-drop in shape and are formed from an original spherical shaped structure (i.e. they are a portion of the sphere). While the medallions 28 are all shown being equal in size they may each be differently sized.
- the medallion base 31 is arc shaped and extends into the surface of the flex panel 30.
- the medallion 28 further has two medallion sides 33 which extend from the medallion base 31 to the medallion apex 34.
- the medallion sides 33 are located primarily on the frame 22.
- the medallion apex 34 is also located primarily on the frame 22.
- the medallions 28 are shown located on the front frame portion 37.
- the medallions 28 are located with the middle medallion 28 being located equal distances from the other two medallions 28.
- the medallions 28 provide additional support structure to the frame 22 that prevents deformation of the container 10 outside the frame 22. It should be understood that while three medallions are shown in the figures more or less medallions 28 may be used.
- a tear drop shaped medallion is used, other shapes may be employed provided they prevent creasing in the container 10. The tear drop shaped medallion 28 is used in the embodiments disclosed herein due to its ease of creation and effectiveness.
- the deformation that the medallions 28 may prevent primarily occurs during the fill process with the liquid. Creasing may occur in the sides 32 of the container 10 if the medallions 28 are not present. However, placement of structure on the frame 22 or the flex panel 30 may result in decreased negative pressure accommodation of the flex panel 30. However, the location of the medallions 28 on the front frame portion 37 as opposed to the rear frame portion 39 operates to prevent creasing during the fill process and does not inhibit the vacuum flex panel during the capping and creation of internal negative vacuum pressure. Locating the medallions 28 on other frame portions, such as the top frame portion 36, the bottom frame portion 38, or the rear frame portion 39 does not result in the same measure of success.
- FIG. 4 shows a bottom view of the container 10. Shown in this view are base fingers 21 which are formed during the bottle forming process.
- FIGS. 5 and 6 the cross-sectional views of the container 10 are shown.
- FIG. 5 shows how the distance Dl taken as part of front side 24a from the point A to the point B is greater than the distance D2 taken as part of the rear side 24b from the point C to the point D.
- the increased thickness provided by the presence of the medallion 28 in FIG. 6 is also shown in the cross-sectional views.
- FIG. 6 it can be seen how the distance D3 taken from points E and F located on the medallions is greater than the distance D4 taken from the points G and H located on the rear frame portion 39.
- FIGS. 7-9 show a container 40 made in accordance with another embodiment of the present invention. Everything discussed above with respect to the container 10 is applicable to the container 40. Both containers have similar structure, formation methods and purposes. However, instead of only three medallions 28 located on the vacuum flex panel 30 and frame 22 there is only one medallion 28. Using only one medallion 28 is not as effective as using the three medallions discussed above, however the same overall result of preventing creasing during the fill process while not inhibiting the ability of the flex panel 30 is achieved.
- FIG. 10 shows the flexing of a container 5 that does not have a medallion 28.
- Lighter shaded stress area 3 shows the portion of the container 5 that is being subjected to additional stress during the fill process.
- FIG. 11 shows the flexing of the container 40 with the medallion 28. It can be seen in FIG. 11 that the presence of the medallion 28 on the container 40 reduces the amount of lightly shaded area and decreases the risk of creasing the container 40 during the fill process.
- FIG. 12 is a flow chart providing the steps of hot filling the container 10. The same method is applicable to each of the containers disclosed herein.
- step 102 the container 10 is provided.
- step 104 the container 10 is filled. The filling process involves placing a fluid in the container that is heated to a predetermined temperature.
- step 106 the container 10 is capped.
- step 108 the container is cooled.
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
L'invention concerne un récipient (10) fabriqué dans une matière plastique telle que le PET, conçu pour être rempli à chaud. Ce récipient comprend des panneaux souples (30) situés sur les côtés. Les panneaux souples sont entourés par des cadres (22). Les cadres et les panneaux souples comportent des médaillons en forme de goutte d'eau (28) destinés à empêcher le gondolage pendant le processus de remplissage à chaud.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2012006415A MX2012006415A (es) | 2009-12-03 | 2010-10-28 | Contenedor de plastico provisto con extructuras de refuerzo. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/630,143 US20110132865A1 (en) | 2009-12-03 | 2009-12-03 | Pressure resistant medallions for a plastic container |
US12/630,143 | 2009-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011068606A1 true WO2011068606A1 (fr) | 2011-06-09 |
Family
ID=43308441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2010/054459 WO2011068606A1 (fr) | 2009-12-03 | 2010-10-28 | Récipient en plastique à structures de renforcement |
Country Status (3)
Country | Link |
---|---|
US (1) | US20110132865A1 (fr) |
MX (1) | MX2012006415A (fr) |
WO (1) | WO2011068606A1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7543713B2 (en) | 2001-04-19 | 2009-06-09 | Graham Packaging Company L.P. | Multi-functional base for a plastic, wide-mouth, blow-molded container |
WO2005012091A2 (fr) | 2003-07-30 | 2005-02-10 | Graham Packaging Company, L.P. | Systeme de manipulation de recipient |
US8017065B2 (en) | 2006-04-07 | 2011-09-13 | Graham Packaging Company L.P. | System and method for forming a container having a grip region |
US9707711B2 (en) | 2006-04-07 | 2017-07-18 | Graham Packaging Company, L.P. | Container having outwardly blown, invertible deep-set grips |
US8747727B2 (en) | 2006-04-07 | 2014-06-10 | Graham Packaging Company L.P. | Method of forming container |
US8627944B2 (en) | 2008-07-23 | 2014-01-14 | Graham Packaging Company L.P. | System, apparatus, and method for conveying a plurality of containers |
US8962114B2 (en) | 2010-10-30 | 2015-02-24 | Graham Packaging Company, L.P. | Compression molded preform for forming invertible base hot-fill container, and systems and methods thereof |
US9994378B2 (en) | 2011-08-15 | 2018-06-12 | Graham Packaging Company, L.P. | Plastic containers, base configurations for plastic containers, and systems, methods, and base molds thereof |
US9150320B2 (en) | 2011-08-15 | 2015-10-06 | Graham Packaging Company, L.P. | Plastic containers having base configurations with up-stand walls having a plurality of rings, and systems, methods, and base molds thereof |
US8919587B2 (en) | 2011-10-03 | 2014-12-30 | Graham Packaging Company, L.P. | Plastic container with angular vacuum panel and method of same |
US8991441B2 (en) | 2012-03-02 | 2015-03-31 | Graham Packaging Company, L.P. | Hot-fillable container with moveable panel and systems and methods thereof |
US9254937B2 (en) | 2013-03-15 | 2016-02-09 | Graham Packaging Company, L.P. | Deep grip mechanism for blow mold and related methods and bottles |
US9022776B2 (en) | 2013-03-15 | 2015-05-05 | Graham Packaging Company, L.P. | Deep grip mechanism within blow mold hanger and related methods and bottles |
US10399728B2 (en) * | 2014-05-13 | 2019-09-03 | Owens-Brockway Glass Container Inc. | Neck finish for a container |
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-
2009
- 2009-12-03 US US12/630,143 patent/US20110132865A1/en not_active Abandoned
-
2010
- 2010-10-28 MX MX2012006415A patent/MX2012006415A/es not_active Application Discontinuation
- 2010-10-28 WO PCT/US2010/054459 patent/WO2011068606A1/fr active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US5341946A (en) * | 1993-03-26 | 1994-08-30 | Hoover Universal, Inc. | Hot fill plastic container having reinforced pressure absorption panels |
US20020020687A1 (en) * | 1999-07-30 | 2002-02-21 | Yoshino Kogyosho Co., Ltd. | Heat-resistant hollow container |
WO2002057146A2 (fr) * | 2001-01-22 | 2002-07-25 | Yoshino Kogyosho Co., Ltd. | Contenant avec panneau sous vide integre, logo et partie de prise |
US20030010744A1 (en) * | 2001-07-16 | 2003-01-16 | Ma Ki Hyung | Plastic massage bottle |
US20050247664A1 (en) * | 2003-02-10 | 2005-11-10 | Lane Michael T | Inverting vacuum panels for a plastic container |
EP1930246A1 (fr) * | 2005-08-31 | 2008-06-11 | Yoshino Kogyosho Co., Ltd. | Corps de bouteille carré en résine synthétique |
EP1852357A1 (fr) * | 2006-05-05 | 2007-11-07 | Amcor Limited | Récipient plastique en forme de bouteille à poignée incorporéé |
US20090134117A1 (en) * | 2006-06-02 | 2009-05-28 | Constar International Inc. | Container Having Vacuum Compensation Elements |
US20080041812A1 (en) * | 2006-08-15 | 2008-02-21 | Ball Corporation | Polygonal hour-glass hot-fillable bottle |
WO2008130996A1 (fr) * | 2007-04-16 | 2008-10-30 | Constar International, Inc. | Récipient pourvu d'éléments de compensation du vide |
Also Published As
Publication number | Publication date |
---|---|
MX2012006415A (es) | 2012-07-30 |
US20110132865A1 (en) | 2011-06-09 |
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Legal Events
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