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ES2224966T3 - Un conjunto con una bolsa y un accesorio, asi como un procedimiento para su fabricacion. - Google Patents

Un conjunto con una bolsa y un accesorio, asi como un procedimiento para su fabricacion.

Info

Publication number
ES2224966T3
ES2224966T3 ES00110885T ES00110885T ES2224966T3 ES 2224966 T3 ES2224966 T3 ES 2224966T3 ES 00110885 T ES00110885 T ES 00110885T ES 00110885 T ES00110885 T ES 00110885T ES 2224966 T3 ES2224966 T3 ES 2224966T3
Authority
ES
Spain
Prior art keywords
bag
accessory
sealing
set according
product
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.)
Expired - Lifetime
Application number
ES00110885T
Other languages
English (en)
Inventor
Thomas Kaeser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe des Produits Nestle SA
Nestle SA
Original Assignee
Societe des Produits Nestle SA
Nestle SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Societe des Produits Nestle SA, Nestle SA filed Critical Societe des Produits Nestle SA
Application granted granted Critical
Publication of ES2224966T3 publication Critical patent/ES2224966T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
    • B29C66/4742—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat said single elements being spouts
    • B29C66/47421—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat said single elements being spouts said spouts comprising flanges
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7377—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline
    • B29C66/73771—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being amorphous
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • B65B61/186—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying or incorporating rigid fittings, e.g. discharge spouts
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7377—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline
    • B29C66/73773—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being semi-crystalline
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S383/00—Flexible bags
    • Y10S383/906—Dispensing feature

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Making Paper Articles (AREA)
  • Package Closures (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Closing Of Containers (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Closures For Containers (AREA)
  • Basic Packing Technique (AREA)

Abstract

Un conjunto que comprende: - una bolsa; - un producto que llena dicha bolsa; y - un accesorio que se aplica sobre la bolsa a través del método de sellado ultrasónico; en que dicha bolsa se produce sin ningún accesorio o dispositivo de abertura y se cierra por completo una vez llena, caracterizado por el hecho de que el accesorio se aplica a través del método de sellado ultrasónico una vez llenada y sellada la bolsa, y en que dicha bolsa está hecha de un material en película tratada especialmente en la superficie interior a través de la adición de un barniz especial o capa de película para evitar un sellado en dicha posición, o en que dicho accesorio consiste de cualquier polímero termoplástico o un polímero mezclado especial, tal como metaloceno.

Description

Un conjunto con una bolsa y un accesorio, así como un procedimiento para su fabricación.
El presente invento hace referencia a un conjunto que comprende una bolsa, un producto que llena dicha bolsa y un accesorio que se aplica a la bolsa utilizando un método de sellado ultrasónico.
Ya se conoce en la técnica la manera de sellar accesorios en bolsas. El modo de proceder consiste en usar calentamiento o sellado por ultrasonidos. La técnica de sellado por ultrasonidos comprende el uso de vibraciones mecánicas de alta frecuencia transmitidas a través de las piezas termoplásticas a fin de generar la formación de calor por fricción en una interface. Se conoce el modo de aplicar accesorios sellados ultrasónicamente, pero el sellado se realiza en una bolsa vacía: se forma la bolsa, se sella el accesorio en dicha bolsa, se llena con el producto, por ejemplo mediante llenado aséptico y finalmente se sella la bolsa para obtener el conjunto a punto de ser almacenado. El problema de dicha solución es que la fabricación de dicho conjunto requiere mucho tiempo y la línea de producción es demasiado compleja, dado que comprende una fase más en el proceso. Asimismo, existe un riesgo de que el sellado del accesorio no sea bastante seguro. La patente WO 63.212.531 hace referencia a un proceso de soldadura en que una parte de una película no se suelda al insertar resina sintética o pintura que tiene un punto de fusión superior al de la película. Dicha patente no hace referencia a la soldadura de un accesorio en una bolsa.
El objeto del presente invento es tener un conjunto que comprende una bolsa y un accesorio, en que el tiempo de producción sea más corto que en la técnica anterior, la línea de producción sea más sencilla y el accesorio sea sellado para un almacenaje más seguro, minimizando el riesgo de despegado.
El presente invento hace referencia a un conjunto que comprende:
-
una bolsa;
-
un producto que llena dicha bolsa; y
-
un accesorio que se aplica sobre la bolsa a través del método de sellado ultrasónico;
en que dicha bolsa se produce sin ningún accesorio o dispositivo de abertura y se cierra por completo después del llenado, aplicándose el accesorio a través del método de sellado ultrasónico una vez llenada y sellada la bolsa, estando dicha bolsa hecha de un material en película tratada especialmente en la superficie interior a través de la adición de un barniz especial o capas de película para evitar un sellado en dicha posición, o en que dicho accesorio consiste de cualquier polímero termoplástico o un polímero mezclado especial, tal como metaloceno.
Se llena la bolsa con el producto, luego se cierra la bolsa y se sella ultrasónicamente el accesorio a dicha bolsa. De acuerdo con el invento es importante que el material en película de la bolsa sea tratado por su superficie interna para evitar el sellado de ambas capas de la bolsa: esto se explicará más claramente con respecto a los dibujos. La superficie interna tiene un barniz especial o una capa de película.
El material de la bolsa tiene propiedades de baja, media o alta barrera. Preferiblemente, el material de la bolsa tiene unas altas propiedades de barrera. El material se elige del grupo consistente en polímeros amorfos como ABS, aleación ABS/policarbonato, acrílico, multipolímero acrílico, butadineno/estireno, resinas basadas en óxido fenileno, poliamidaimida, polieterimida, polietersulfona, poliestireno (de uso general), poliestireno (caucho modificado), polisulfono, PVC y polímeros semicristalinos, como acetal, celulósicos, fluoropolímeros, poliéster termoplástico, inomero, polímeros de cristal líquido, nylon, tereftalato de polietileno, tereftalato de polibutileno, polietileno y polipropileno.
La bolsa es una película plástica, un laminado o una película coextrusionada en forma de una bolsa semirrígida o una bolsa blanda.
El polímero termoplástico utilizado para el accesorio debe ser compatible con el material de la bolsa. El accesorio debe ser del mismo material antes citado para la bolsa. Dicho accesorio está hecho de un cuerpo y una base, comprendiendo dicha base ranuras concéntricas para mejorar la soldadura ultrasónica.
Haciendo referencia al tipo de productos para llenar la bolsa, los mismos se toman del grupo consistente alimentos o comida para animales de compañía, líquidos y viscosos, productos clínicos nutritivos, productos lácteos, cualquier tipo de jugo, productos de fruta, agua mineral, bebidas suaves, sopas, salsas, otras salsas incluyen condimentos y mayonesa.
De acuerdo con una forma de realización del invento, el accesorio comprende un tapón o cierre tipo abertura rápida y se retira el producto a través del accesorio con medios especiales, por ejemplo un dispositivo de perforación ya conocido en el sector. Según una segunda forma de realización del invento, el accesorio comprende un cierre tipo roscado y dentro de dicho accesorio existe una pieza a prueba de intromisión, que es preperforada y sellada conjuntamente con el material de la bolsa.
El producto se llena en la bolsa bajo condiciones frescas, asépticas, UHT, pasteurizadas o esterilizadas.
El presente invento también concierne a un procedimiento para la fabricación del conjunto antes descrito, en el cual:
-
se llena la bolsa con el producto y luego se sella;
-
luego se transporta la bolsa sobre medios transportadores a un dispositivo de sellado por ultrasonidos, donde dicho dispositivo es cargado con un accesorio y movido hacia abajo sobre la bolsa, prensando el accesorio contra un yunque;
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se libera una cantidad de energía y se transporta mediante el dispositivo de sellado a la base del accesorio, de manera que tiene lugar el sellado del accesorio sobre la bolsa;
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se levanta el dispositivo de sellado; y
-
se libera la bolsa.
La cantidad de energía del proceso de sellado depende del tipo de accesorio y del material de la bolsa. Preferiblemente, la bolsa es una multicapa de polietileno/poliamida/EVOH/polietileno y el accesorio un polietileno de alta densidad.
El dispositivo de sellado está diseñado de una manera especial para crear directores de energía para guiar especialmente, a fin de enfocar la energía a determinados lugares durante dicho proceso de sellado.
El sellado se lleva a cabo en un dispositivo Branson, en el cual puede controlarse la energía liberada para el proceso de sellado.
A continuación se ilustra, a modo de ejemplo, el presente invento en los dibujos adjuntos, en los cuales:
La figura 1 es una vista esquemática antes de sellar el accesorio;
La figura 2 es una vista esquemática durante el sellado; y
La figura 3 es una vista esquemática después del sellado.
La bolsa (1) se llena con un producto nutritivo clínico (2): se sella la bolsa y se prepara la colocación del accesorio (3). El accesorio tiene una base (4). El cabezal de sellado ultrasónico (5) se coloca con su abertura (6) justo sobre el accesorio y la bolsa se coloca justo sobre un yunque (7).
Luego se desplaza el cabezal ultrasónico (5) hacia abajo (figura 2), a fin de que el accesorio (3) penetre en la abertura (6) del cabezal ultrasónico, y dicho cabezal aprieta la bolsa (1) contra el yunque (7). A continuación se establece la alta frecuencia y el calor desarrollado permite sellar la base (4) del accesorio sobre la bolsa llena. Gracias al barniz especial o capa de película en la superficie interior de la bolsa, tan solo se sella el accesorio y no ambas capas de la bolsa.
Finalmente, el cabezal ultrasónico se mueve hacia arriba (figura 3), el accesorio (3) queda sellado en el costado exterior de la bolsa por su base (4) y entonces dicha bolsa está a punto para ser almacenada.

Claims (12)

1. Un conjunto que comprende:
-
una bolsa;
-
un producto que llena dicha bolsa; y
-
un accesorio que se aplica sobre la bolsa a través del método de sellado ultrasónico;
en que dicha bolsa se produce sin ningún accesorio o dispositivo de abertura y se cierra por completo una vez llena, caracterizado por el hecho de que el accesorio se aplica a través del método de sellado ultrasónico una vez llenada y sellada la bolsa, y en que dicha bolsa está hecha de un material en película tratada especialmente en la superficie interior a través de la adición de un barniz especial o capa de película para evitar un sellado en dicha posición, o en que dicho accesorio consiste de cualquier polímero termoplástico o un polímero mezclado especial, tal como metaloceno.
2. Un conjunto de acuerdo con la reivindicación 1, en que el accesorio comprende un tapón o cierre tipo abertura rápida y se retira el producto a través del accesorio con un elemento especial.
3. Un conjunto de acuerdo con la reivindicación 1, en que el accesorio comprende un cierre tipo roscado y dentro de dicho accesorio existe una pieza a prueba de intromisión, que es preperforada y sellada conjuntamente con el material de la bolsa.
4. Un conjunto de acuerdo con una cualquiera de las reivindicaciones 1 a 3, en que el material de la bolsa tiene propiedades de baja, media o alta barrera.
5. Un conjunto de acuerdo con la reivindicación 4, en que el material de la bolsa es una película plástica, una película laminada en forma de una bolsa semirrígida o de una bolsa blanda.
6. Un conjunto de acuerdo con una cualquiera de las reivindicaciones 1 a 5, en que el producto se toma del grupo consistente en alimentos o comida para animales de compañía, líquidos y viscosos, productos clínicos nutritivos, productos lácteos, cualquier tipo de jugo, productos de fruta, agua mineral, bebidas suaves, sopas, salsas, otras salsas incluyen condimentos y mayonesa.
7. Un conjunto de acuerdo con una cualquiera de las reivindicaciones 1 a 6, en que el producto se llena bajo condiciones frescas, asépticas, UHT, pasteurizadas o esterilizadas.
8. Un conjunto de acuerdo con una cualquiera de las reivindicaciones 1 a 7, en que el accesorio está hecho de un cuerpo y una base, comprendiendo dicha base ranuras concéntricas.
9. Un procedimiento para la fabricación del conjunto de acuerdo con una cualquiera de las reivindicaciones 1 a 8, en el cual:
-
se llena la bolsa con el producto y luego se sella;
-
luego se transporta la bolsa sobre medios transportadores a un dispositivo de sellado por ultrasonidos, donde dicho dispositivo es cargado con un accesorio y movido hacia abajo sobre la bolsa prensando el accesorio contra un yunque;
-
se libera una cantidad de energía y se transporta mediante el dispositivo de sellado a la base del accesorio, de manera que tiene lugar el sellado del accesorio sobre la bolsa;
-
se levanta el dispositivo de sellado; y
-
se libera la bolsa.
10. Un procedimiento de acuerdo con la reivindicación 9, en que la cantidad de energía del proceso de sellado depende del tipo de accesorio y del material de la bolsa.
11. Un procedimiento de acuerdo con una cualquiera de las reivindicaciones 9 ó 10, en que el dispositivo de sellado está diseñado de una manera especial para crear directrices de energía para guiar especialmente y enfocar la energía a determinados lugares durante dicho proceso de sellado.
12. Un procedimiento de acuerdo con la reivindicación 11, en que el sellado se lleva a cabo en un dispositivo Branson, donde puede controlarse la energía liberada para el proceso de sellado.
ES00110885T 2000-05-23 2000-05-23 Un conjunto con una bolsa y un accesorio, asi como un procedimiento para su fabricacion. Expired - Lifetime ES2224966T3 (es)

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NZ511563A (en) 2002-09-27
US6592918B2 (en) 2003-07-15
AU777633B2 (en) 2004-10-28
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MY126007A (en) 2006-09-29
EP1167211B1 (en) 2004-08-11
PL347669A1 (en) 2001-12-03
BR0102069A (pt) 2002-01-02
AR028614A1 (es) 2003-05-14
TR200101413A2 (tr) 2001-12-21
DE60012903D1 (de) 2004-09-16
JP2002018984A (ja) 2002-01-22
TR200101413A3 (tr) 2001-12-21
ZA200104186B (en) 2002-11-22
US20020005241A1 (en) 2002-01-17
IL142970A0 (en) 2002-04-21
DE60012903T2 (de) 2004-12-30
ATE273174T1 (de) 2004-08-15

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