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
  • B65D43/00—Lids or covers for rigid or semi-rigid containers
  • B65D43/02—Removable lids or covers
  • B65D43/0202—Removable lids or covers without integral tamper element
• • 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
  • B65D79/00—Kinds or details of packages, not otherwise provided for
  • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
  • B65D79/0087—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a closure, e.g. in caps or lids
• • 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
  • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
  • B65D77/10—Container closures formed after filling
  • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
  • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
• • 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
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
  • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
  • Y10T428/1355—Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24628—Nonplanar uniform thickness material
  • Y10T428/24669—Aligned or parallel nonplanarities

Definitions

• the present invention relates to a lid for plastic containers, especially for those thermoformed cup-type containers commonly used for packaging ready-to-drink liquid products and beverages such as teas, soft drinks, etc.
• the lid object of the present invention is provided with technical and innovative features that prevent the collapse of said packages.
• the present invention relates to a plastic packaging lid comprising a structure having a configuration capable of hot-filling (up to 95 ° C) liquid or pasty products and thereby reducing or even eliminating preservatives. to extend product life.
• a plastic packaging lid comprising a structure having a configuration capable of hot-filling (up to 95 ° C) liquid or pasty products and thereby reducing or even eliminating preservatives. to extend product life.
• by eliminating the collapsing effect of packaging it makes it possible to properly and safely stack and display these packages on sales shelves.
• Thermoformed plastic cup-type packaging is commonly used in the market for liquid products, especially ready-to-drink beverages of lower added value, and consists of a plastic cup whose open end is closed with a sealing-type lid. blade.
• said lid is formed of one layer of aluminum and another of polyethylene, the latter being responsible for allowing thermosolding on the edge of the cup.
• packaging is made from the smallest possible amount of material, which makes it thin and light and usually uses so-called thermoformed polymers that are cheaper raw materials.
• such beverages are at a temperature of about 30 ° C, and closure of the package by the lid generates an internal air space between the beverage level and the inner face of the lid, also called from "head space".
• head space By reducing the temperature of the product in the refrigerator, the vapor pressure of the liquid is reduced precisely in this region of the head space.
• thermoformed plastic packaging makes it impossible to hot-fill products such as curd creamy.
• thermoformed cup-type package which has been developed to try to avoid collapse of the structure after filling and closing of the package.
• This package comprised a kind of valve disposed at the bottom of the cup body; more particularly, said bottom was intended to retract when reducing the vapor pressure within the cup.
• such a configuration was not effective, since it required a high cost manufacturing process with specific equipment, and mainly because it required an accuracy in the conformation of the bottom of the package.
• thermoformed plastic packaging for packaging liquid and pasty products, preferably of the ready-to-drink and creamy curd type, which can simply, safely and efficiently solve all the drawbacks revealed in the state of the art. technique as commented above.
• thermoformed plastic packaging lid which comprises a configuration capable of efficiently eliminating collapse of the packaging walls after bottling, closing and cooling of the final product, regardless of the beverage filling temperature.
• thermoformed plastic cup-type lid that ensures the integrity of the entire structure, ie maintains the original appearance, enables the best including the stacking of these packages on sales shelves to optimize manufacturing logistics, transportation and display for sale.
• thermoformed lid for cup-type packaging capable of simply and inexpensively solving the problems caused in the structure of such packages without the need for reformulation of materials and sizing.
• the lid according to the present invention comprises a structure which efficiently ensures the structural integrity of the packaging body, regardless of the beverage conditions during and after filling, closing and cooling of the final product.
• thermoformed plastic packaging lid comprising a blade provided with at least one slot which surrounds at least in part the surface of said blade.
• said slots are provided in accordion shape, such as a sequence of protrusions and recesses of triangular section of more or less curved ends.
• said blade is comprised of an aluminum layer covered with a polyethylene or polypropylene layer capable of allowing heat sealing of said lid over the edge of the plastic package.
• thermoformed plastic packaging lid object of the present invention.
• Figures 1A, 1B, 1C and 1D schematically show a lid and a closed thermoformed plastic package according to the state of the art
• FIGS 2A and 2B schematically show two preferred embodiments of the packaging lid according to the present invention
• Figure 3 schematically shows a thermoformed plastic package closed by the lid according to the present invention, particularly after beverage filling at a conventional temperature
• Figure 4 schematically shows the sealed package illustrated in Figure 3, but cooled
• Figure 5 schematically shows a thermoformed plastic package closed by the lid in accordance with an alternative embodiment of the present invention, particularly after filling beverages at an elevated temperature;
• Figure 6 schematically shows the sealed package illustrated in Figure 5, but cooled
• Figures 7 and 8 show side views of the caps according to the present invention under different conditions of beverage vapor pressure after closure of the plastic containers.
• lid for plastic packaging object of the present invention, will be described hereinafter according to preferred rather than limiting embodiments, since its application can be carried out in different packages and for the packaging of different products with variations of vapor pressure when filling and cooling in the manufacturing process.
• Figures 1A-1D illustrate conventional embodiments of a lid and package known in the art.
• Figure 1A shows a lid 1 comprised of an aluminum foil and a polyethylene or polypropylene layer.
• said lid 1 is overlapped at the open end 3 of package 2, after filling with a drink 4 at a temperature of about 30-35 ° C, then said lid 1 is thermosolded at the edge. said package 2, making it ready for sale.
• FIG 1D illustrates a more critical situation in which beverage 4 was filled at a high temperature, about 95 ° C and then cooled to a temperature of about 10 ° C.
• the collapse is more severe. intense and problematic, both structural and visual, also causing inconvenience to the logistics of the final product.
• FIGs 2A and 2B in which two preferred embodiments of the lid according to the present invention are illustrated, it is noted that said lid 10 is provided with slots 1 surrounding the entire lid structure.
• said slots 11 comprise a concertina form, i.e. a sequence of protrusions and recesses of triangular section of greater or lesser curvature.
• the configuration of said slot 11 may vary according to the type of beverage and its manufacturing and filling process, that is, the amount of protrusions and recesses may increase or decrease according to the properties of the packaged liquid.
• the number of slots 11 may be larger or smaller, i.e. the accordion configuration may be longer or shorter.
• Figures 3, 4, 5 and 6 illustrate two preferred embodiments of the lid 10 according to the present invention by closing a thermoformed plastic packaging 2 which holds a beverage 4. More specifically, the embodiment illustrated by Figures 3 and 4 simulates a conventional situation of beverage processing and packaging, but using lid 0 in question. In this embodiment, the liquid was filled at a temperature of about 30 ° C, which does not cause drastic variations in the configuration of the package 2 nor in the lid 10. However, when the closed package 2 is subjected to a temperature of about 10 ° C. C, it is observed that the pressure in the head space 5 decreases and, in response to compensate for this effect, the accordion configuration of the slots 11 reacts by occupying a part of the head space space 5. As can be seen, the package body 2 remains unchanged without any sign of collapse of its walls.
• a cover was used 10 whose accordion configuration of the slots 11 is longer, that is, it has a larger number of protrusions and recesses.
• the simulation had as a parameter the sterilization of the drink during the manufacturing and filling process, ie, the use of preservatives was eliminated.
• the lid 10 expands positively.
• the lid 10 retracts and expands negatively, causing the folding configuration of the slots 1 1 to be undone into the head space 5, compensating for the aforementioned one. vapor pressure drop.
• the vapor pressure in the head space begins to decrease and thereby said lid 10 begins to retract and then expand negatively compensating for the space taken by the vapor pressure drop in the head space. "by reaching their respective levels (-1, -2, -3, -4) and eliminating scratches from the packaging wall to collapse.
• the lid according to the present invention can solve a number of drawbacks revealed by the prior art plastic covers and packaging, especially regarding the integrity of the packaging.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Packages (AREA)
• Closures For Containers (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=45066075

Family Applications (1)

Country Status (5)

Families Citing this family (1)

Citations (3)

Family Cites Families (9)

• 2010
  • 2010-05-31 BR BRPI1001431-4A patent/BRPI1001431A2/pt not_active IP Right Cessation
• 2011
  • 2011-05-10 US US13/701,337 patent/US20130202826A1/en not_active Abandoned
  • 2011-05-10 MX MX2012013997A patent/MX2012013997A/es not_active Application Discontinuation
  • 2011-05-10 WO PCT/BR2011/000145 patent/WO2011150478A1/pt active Application Filing
  • 2011-05-10 EP EP11788993.1A patent/EP2578508A4/en not_active Withdrawn

Patent Citations (3)

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