EP0220533A2 - Récipient pour produits alimentaires et son procédé de fabrication - Google Patents

Récipient pour produits alimentaires et son procédé de fabrication Download PDF

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Publication number
EP0220533A2
EP0220533A2 EP86113645A EP86113645A EP0220533A2 EP 0220533 A2 EP0220533 A2 EP 0220533A2 EP 86113645 A EP86113645 A EP 86113645A EP 86113645 A EP86113645 A EP 86113645A EP 0220533 A2 EP0220533 A2 EP 0220533A2
Authority
EP
European Patent Office
Prior art keywords
container
flocking
flocked
fibers
layer
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
Application number
EP86113645A
Other languages
German (de)
English (en)
Other versions
EP0220533A3 (en
EP0220533B1 (fr
Inventor
Franz Josef Rath
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT86113645T priority Critical patent/ATE43117T1/de
Publication of EP0220533A2 publication Critical patent/EP0220533A2/fr
Publication of EP0220533A3 publication Critical patent/EP0220533A3/de
Application granted granted Critical
Publication of EP0220533B1 publication Critical patent/EP0220533B1/fr
Expired legal-status Critical Current

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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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3865—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation drinking cups or like containers
    • B65D81/3874—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation drinking cups or like containers formed of different materials, e.g. laminated or foam filling between walls
    • 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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/34—Coverings or external coatings

Definitions

  • the invention relates to a bowl-shaped or cup-shaped container for holding food, which consists of metallic or plastic film material and a method for its production.
  • Such containers for holding food are known in a wide variety of embodiments. They serve, for example, as drink cups or as bowls for prepared dishes. Since such containers must be impermeable to liquids and chemically resistant, they usually consist of aluminum foil or special, tasteless plastic film material.
  • a disadvantage of the known food containers is that they are bad because of their smooth outer surfaces Let it grasp and that they are only insufficiently insulated. For example, containers with hot drinks can hardly be touched at first, while the drink quickly loses its temperature.
  • the invention has for its object to provide a generic container for holding food, which is easy to grasp and well insulated and whose weight is only slightly above the weight of conventional containers.
  • the container on its outer surfaces - possibly with the exception of its closing edge - is flocked with plastic fibers, all fibers being anchored in the adhesive layer.
  • the anchoring of all fibers in the adhesive layer means that individual particles are detached from the flocking layer completely excluded, so that the container can now also be used in connection with food.
  • the use of synthetic fibers with high inherent strength is of particular importance because, unlike cotton fibers, for example, no particles detach from them under mechanical stress. Because of the flocking, a very high thermal insulation effect is achieved, which also allows containers with almost boiling contents to be touched.
  • the food stored in the container maintains its temperature for a long time, so that the container according to the invention is particularly suitable for the distribution of ready-prepared plate dishes.
  • Flocking also ensures good thermal insulation for frozen foods. Because of the flocking, the container finally becomes very easy to grip, so that it can no longer slide out of your hand, for example.
  • the weight of the container is only slightly increased by the flock layer, so that, for example, when used in canteen kitchens, a larger number of empty containers can still be easily transported by a single person.
  • the fiber length of the flocking layer can be approximately between 0.3 and 0.5 millimeters. Even with this fiber length, an astonishing thermal insulation effect is already achieved, with only a slight increase in weight of the container being observed at the same time. With this fiber length, there is also a rubbing or scraping load there is no fear of fiber breakage in the container, which is of particular importance with regard to use in connection with food.
  • the flocking can consist of a mixture of cut and ground fibers.
  • cut fibers are predominantly oriented perpendicular to the adhesive layer, while ground fibers have a more irregular structure and are often on the adhesive layer.
  • the flocking layer is given a felt-like structure with a very dense surface, which results in a particularly high thermal insulation effect.
  • the invention relates to a method for producing a container according to the invention, which is characterized in that when flocking follows the curing of the adhesive, the flocked surfaces are sprayed with high pressure water and then dried. After extensive tests, spraying the flocked surfaces with high pressure water has proven to be the only effective method so far to completely loosen and remove loose or only slightly glued fibers from the flocking layer. Only with this intensive form of cleaning can it be ensured that all remaining fibers are reliably anchored in the adhesive layer.
  • the flocked surfaces can be sprayed with water several times, in different directions. In this way, every angular space within the flocking layer is reliably reached by the high-pressure water.
  • the flocked surfaces can be treated with the flock layer facing downward. After individual particles have been removed from the flock layer, they are immediately rinsed away with the water flowing downward and cannot float on the flock layer in other places.
  • a surface relaxant can be added to the water.
  • a particularly high penetration depth of the high-pressure water jets is thus achieved and, due to their electrostatic charge, quasi-bonded fiber particles are better released.
  • water temperatures between 60 ° C. and 100 ° C. can be used and / or the flocked surfaces can be pretreated with water vapor radiation.
  • the individual fibers of the flocking layer begin to work due to the heat treatment or water vapor irradiation, similar to hot steam ironing, which loosens fibers that are not anchored in the adhesive layer.
  • the flocking and residual fiber cleaning can be carried out on the film material or on cuts of the film material before the container is formed.
  • the treatment of the undeformed material ensures that all areas of the flocking layer are really covered during the residual fiber cleaning.
  • the flocked surfaces can be bent convexly and treated in the bending area.
  • the convex bend results in an expansion and opening of the flocking layer, which additionally promote the detachment of loose particles.
  • Fig. 1 shows a bowl-shaped container 1, which is used to hold ready prepared dishes. It is made of an aluminum foil 2, which is provided with a flocking layer 3 on its outer surfaces. Despite the high thermal conductivity of aluminum, the container 1 can therefore be handled by hand even when transporting very hot dishes.
  • FIG. 2 and 3 illustrate the structure of a beverage container 4 with a lid 5.
  • the basic structure of the container 4 consists of a cup-shaped plastic film 6, which is provided on its outer surfaces with a flocking layer 7. Only the closing edge 8 for holding the cover 5 is not flocked.
  • the flocking layer 7 is firmly anchored to the plastic film 6 via an adhesive layer 9.
  • the flocking layer 7 consists of a mixture of cut fibers 10, which protrude perpendicularly or approximately perpendicularly from the adhesive layer 9, and ground fibers 11, which stand or stand obliquely on the adhesive layer 9 these are arranged horizontally and have a comparatively irregular structure.
  • FIG. 6 shows the different stations of the residual fiber cleaning of the flocked surfaces 13 of a film 14, from which containers for receiving food are formed after the treatment has been completed.
  • the double arrow symbolizes a first station of residual fiber cleaning, in which the flocked surfaces are pretreated with water vapor radiation 15.
  • the film 14 runs around a roller 16, so that the flocked surfaces 13 receive a convex bend.
  • the flocked surfaces 13 are sprayed from different directions 17, 18 with water under high pressure, as indicated by arrows. Since the spraying takes place with the flock layer 13 essentially directed downward, the water together with the dissolved flock particles can flow downward in the region 19.
  • the flocked surfaces 13 are dried by means of a hot air system 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Cartons (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Laminated Bodies (AREA)
EP86113645A 1985-10-30 1986-10-02 Récipient pour produits alimentaires et son procédé de fabrication Expired EP0220533B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86113645T ATE43117T1 (de) 1985-10-30 1986-10-02 Behaelter zur aufnahme von lebensmitteln und verfahren zu seiner herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853538524 DE3538524A1 (de) 1985-10-30 1985-10-30 Behaelter zur aufnahme von lebensmitteln und verfahren zu seiner herstellung
DE3538524 1985-10-30

Publications (3)

Publication Number Publication Date
EP0220533A2 true EP0220533A2 (fr) 1987-05-06
EP0220533A3 EP0220533A3 (en) 1988-03-30
EP0220533B1 EP0220533B1 (fr) 1989-05-17

Family

ID=6284771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113645A Expired EP0220533B1 (fr) 1985-10-30 1986-10-02 Récipient pour produits alimentaires et son procédé de fabrication

Country Status (4)

Country Link
EP (1) EP0220533B1 (fr)
AT (1) ATE43117T1 (fr)
DE (2) DE3538524A1 (fr)
ES (1) ES2009752B3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372687A1 (fr) * 1988-12-02 1990-06-13 Weirton Steel Corporation Fabrication de corps de boîte
WO1998039828A1 (fr) * 1997-03-05 1998-09-11 Federal-Mogul Technology Limited Gaines souples de protection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1183454A (en) * 1966-02-21 1970-03-04 Wipac Dev Ltd Improvements in Tray-like Display Panels
SE8007113L (sv) * 1980-10-10 1982-04-11 Scanflock Ab Forfarande for rostskyddsbehandling av stalplat och liknande
DE8134281U1 (de) * 1981-11-25 1982-03-04 Waldenmeier, Josef, 8860 Nördlingen Behaelter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372687A1 (fr) * 1988-12-02 1990-06-13 Weirton Steel Corporation Fabrication de corps de boîte
WO1998039828A1 (fr) * 1997-03-05 1998-09-11 Federal-Mogul Technology Limited Gaines souples de protection

Also Published As

Publication number Publication date
ATE43117T1 (de) 1989-06-15
ES2009752B3 (es) 1989-10-16
EP0220533A3 (en) 1988-03-30
DE3538524C2 (fr) 1988-03-03
DE3663360D1 (en) 1989-06-22
EP0220533B1 (fr) 1989-05-17
DE3538524A1 (de) 1987-05-07

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