[go: up one dir, main page]

DE2041514A1 - Hollow plastic containers - coated with another plastic layer prior to inflation for gas impermeability - Google Patents

Hollow plastic containers - coated with another plastic layer prior to inflation for gas impermeability

Info

Publication number
DE2041514A1
DE2041514A1 DE19702041514 DE2041514A DE2041514A1 DE 2041514 A1 DE2041514 A1 DE 2041514A1 DE 19702041514 DE19702041514 DE 19702041514 DE 2041514 A DE2041514 A DE 2041514A DE 2041514 A1 DE2041514 A1 DE 2041514A1
Authority
DE
Germany
Prior art keywords
coated
plastic
inflation
preforms
containers
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.)
Pending
Application number
DE19702041514
Other languages
German (de)
Inventor
Norbert Dr-Ing Buchner
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.)
FR Hesser Maschinenfabrik AG
Original Assignee
FR Hesser Maschinenfabrik AG
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 FR Hesser Maschinenfabrik AG filed Critical FR Hesser Maschinenfabrik AG
Priority to DE19702041514 priority Critical patent/DE2041514A1/en
Publication of DE2041514A1 publication Critical patent/DE2041514A1/en
Pending 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3008—Preforms or parisons made of several components at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3012—Preforms or parisons made of several components at flange portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3016—Preforms or parisons made of several components at body portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/302—Preforms or parisons made of several components at bottom portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3064—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3064—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062
    • B29C2949/3074—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062 said at least one component obtained by coating
    • B29C2949/3078—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062 said at least one component obtained by coating by spray coating
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3064—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062
    • B29C2949/3074—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062 said at least one component obtained by coating
    • B29C2949/308—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062 said at least one component obtained by coating by dip coating
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3064—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062
    • B29C2949/3084—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062 said at least one component obtained by casting

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Pref. the blanks are coated on the inside and the plastic, esp. polyvinylidene chloride, is sprayed on as a dispersion and then dried, or painted on or immersed in the liquid plastic. By this method the surface area to be covered is relatively small and smooth surfaced and the container opening relatively large compared to the area to be covered.

Description

"Verfahren zum erstellen von beschichteten Kunststoffbehältern" - I--U Die Erfindung betrifft ein Verfahren zum Herstellen von KunststoffbehSltern, bei dem zunSchst VorSormlinge hergestellt und diese dann in die gewünschte Behälterform geblasen werden."Process for creating coated plastic containers" - I - U The invention relates to a method for producing plastic containers, in which first pre-seedlings are made and then put into the desired container shape be blown.

Das Blasen von KunststoffbehSltern unter Verwendung von Vorformlingen ist allgemein bekannt.Blowing plastic containers using preforms is well known.

Es ist durch die deutsche Patentanschrift 1 241 094 auch bU-kannt, Vorformlinge zu spritzen, derart, daß diese Vorform linge aus zwei Schichten von unterschiedliehen Kunststoffen bestehen. Diese Vorformlinge werden dann in an sich bekann-@er Weise zu Behältern aufgeblasen, welche entsprechend der gewählten Auswahl der Kunststoffe eine Gasdichtigkeit auSweisen. Nachteilig bei dem genannten Herfahren ist, daß die Beschichtung aus herstellungstechnischen Gründen eine bestimmte Mindestdicke aufweisen muß und dementsprechend ein unwirtschaftlich hoher Aufwand an teuerem Beschichtungswerkstoff auftritt. Ausserdem ist eine für das genannte doppelwandige Spritzen eingerichtete Vorrichtung sehr kompliziert.It is also known by the German patent address 1 241 094, To inject preforms, so that this preform would consist of two layers of different plastics exist. These preforms are then in themselves known- @ inflated to containers, which according to the selected selection the plastics are gas-tight. Disadvantageous in the aforementioned approach is that the coating has a certain minimum thickness for manufacturing reasons must have and accordingly an uneconomically high cost of expensive Coating material occurs. There is also a double-walled one for the said Syringes set up device very complicated.

Des weiteren ist es bekannt, bereits felwtiggeblasene BehSlter innen mit einem Kunststoff zu besprühen, wodurch die Behälter ebenfalls gasdichter werden. Für das Besprühen sind im allgemeinen nur geringe Mengen an Kunststoff erforderlich. Fertiggeblasene Behälter weisen jedoch eine verhältnismäßig große Innenfläche auf, meist auch Rippen und Sicken und oft erge Einfüllöffnungen. Es ist daher fast unmöglich, den Beschichtungswerlkstoff gleichmäßig genug zu verteilen. Insbesondere wenn die Behälter dünnwandig sind, besteht ausserdem noch die Gefahr, daß sie durch das Beschichten ihre ursprüngliche Gestalt verlieren.Furthermore, it is known to already have skin-blown containers inside to be sprayed with a plastic, which also makes the containers more gas-tight. Only small amounts of plastic are generally required for spraying. However, finished blown containers have a relatively large inner surface, mostly ribs and beads and often erge filling openings. It is therefore almost impossible to distribute the coating material evenly enough. Especially when the If containers are thin-walled, there is also the risk that they will be damaged by the coating lose their original shape.

Zur Vermeidung der genssten Nachteile wird deshalb ein Verfahren zum Herstellen von Kunststoffbehältern vorgeschlagen, das dadurch gekennzeichnet ist, daß die Vorformlinge vor dem Aufblasen mit einem Kunststoff beschichtet werden. Dabei werden vorzugsweise die Ir¢lenselten der Vorformlinge beschichtet.To avoid the genssten disadvantages, a method for Manufacture of plastic containers proposed, which is characterized in that that the preforms are coated with a plastic before inflation. Preferably, the irons of the preforms are rarely coated.

Das Eeschichten karul dabei in an sich bekannter Weise entweder durch AufsprUherl, Lackieren ocler AurgLeßen des Beschichtungskunststorfs bzw. durch Tauchen des Vorrormlings in den verflüssigten Beschichtungswerkstoff erfolgen, wobei als Beschichtungswerkstoff beispielsweise Polyvinylidenchlorid verwendet wird.Eeschichten karul either through in a manner known per se Spray-on, varnish or aurgleßen of the synthetic peat coating or by dipping of the preform take place in the liquefied coating material, polyvinylidene chloride, for example, is used as the coating material.

Das genannte Verfahren ist deshalb besonders vorteilhaft, weil die zum Beschichten der Vorformlinge vorgesehene Einrichtung den Beschichtungswerkstoff nur auf verhältnismäßig kleinen Flächen zu verteilen braucht.und die Öffnungen der Vorformlinge im Verhältnis zur Fläche der Innenseite relativ groß sind.The aforementioned method is particularly advantageous because the the device provided for coating the preforms the coating material only needs to be distributed over relatively small areas. and the openings of the Preforms are relatively large in relation to the area of the inside.

PatentansprücheClaims

Claims (1)

Patentansprüche: 1. Verfahren zum Herstellen von beschichteten Kunststoffbehältern, bei denen Vorformlinge hergestellt und diese dann in die gewünschte Behälterform geblasen werden, dadurch gekennzeichnet, daß die Vorformlinge vor dem Aufblasen mit einem Kunststoff beschichtet werden. Claims: 1. Method for producing coated plastic containers, in which preforms are produced and these are then converted into the desired container shape are blown, characterized in that the preforms prior to inflation be coated with a plastic. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Vorformlinge auf der Innenseite beschichtet werden.2. The method according to claim 1, characterized in that the preforms be coated on the inside. 5. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Kunststoff in dispergiertem Zustand aufgesprüht und dann getrocknet wird.5. The method according to claims 1 and 2, characterized in that that the plastic is sprayed on in a dispersed state and then dried. 4. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Kunststoff in geschmolzenem Zustand auf die Vorformlinge durch Aufgießen oder Tauchen aufgebracht wird.4. The method according to claims 1 and 2, characterized in that that the plastic in the molten state is poured onto the preforms or immersion is applied. 5. Verfahren nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß zum Beschichten Polyvinylidenchlorid verwendet wird.5. Process according to claims 1 to 4, characterized in that that polyvinylidene chloride is used for coating.
DE19702041514 1970-08-21 1970-08-21 Hollow plastic containers - coated with another plastic layer prior to inflation for gas impermeability Pending DE2041514A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702041514 DE2041514A1 (en) 1970-08-21 1970-08-21 Hollow plastic containers - coated with another plastic layer prior to inflation for gas impermeability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702041514 DE2041514A1 (en) 1970-08-21 1970-08-21 Hollow plastic containers - coated with another plastic layer prior to inflation for gas impermeability

Publications (1)

Publication Number Publication Date
DE2041514A1 true DE2041514A1 (en) 1972-02-24

Family

ID=5780332

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702041514 Pending DE2041514A1 (en) 1970-08-21 1970-08-21 Hollow plastic containers - coated with another plastic layer prior to inflation for gas impermeability

Country Status (1)

Country Link
DE (1) DE2041514A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2717307A1 (en) * 1976-04-21 1977-11-10 Ici Ltd METHOD OF MANUFACTURING A BIAXIALLY ORIENTED CONTAINER
WO1995022451A1 (en) * 1994-02-18 1995-08-24 The Coco-Cola Company Hollow containers having a very thin inert or impermeable inner surface layer by coating the inside surface of the preform

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2717307A1 (en) * 1976-04-21 1977-11-10 Ici Ltd METHOD OF MANUFACTURING A BIAXIALLY ORIENTED CONTAINER
WO1995022451A1 (en) * 1994-02-18 1995-08-24 The Coco-Cola Company Hollow containers having a very thin inert or impermeable inner surface layer by coating the inside surface of the preform
US5571470A (en) * 1994-02-18 1996-11-05 The Coca-Cola Company Method for fabricating a thin inner barrier layer within a preform
US5906787A (en) * 1994-02-18 1999-05-25 The Coca-Cola Company Hollow containers having a very thin inert or impermeable inner surface layer by coating the inside surface of the preform
US6444155B1 (en) 1994-02-18 2002-09-03 The Coca-Cola Company Hollow containers having a very thin inert or impermeable inner surface layer by coating the inside surface of the preform

Similar Documents

Publication Publication Date Title
DE1719299B2 (en) Rigid laminar bodies made of polyethylene and polyester and process for their production
DE2706882A1 (en) PROCESS FOR THE MANUFACTURING OF GAS-, STEAM- AND ODOR-RESISTANT COMBINED AND EXTRUDED TWO-LAYER OR MULTI-LAYER ARTICLES FROM THERMOPLASTIC MATERIAL
DE2461580B2 (en) Process for the production of injection-molded parts made of thermoplastic material with a smooth surface and a porous core
DE1504494A1 (en) Method and device for the production of a foamed molded cell body from a foamable, thermoplastic starting material, preferably synthetic resin
WO2004069514A2 (en) Foam article, especially trimming element for the interior of a motor vehicle, and method for producing the same
DE1454961B2 (en) MOLDING TOOL FOR MANUFACTURING PRODUCTS FROM FOAM AND METHOD FOR MANUFACTURING SUCH A MOLDING TOOL
DE2041514A1 (en) Hollow plastic containers - coated with another plastic layer prior to inflation for gas impermeability
DE1704586A1 (en) Process for the production of bodies provided with a coating from foamed plastic and an article produced by this process
DE4202354C2 (en) Process for the production of a plastic skin
US602159A (en) Method of producing pyroxylin imitations of mosaic
DE2601815A1 (en) METHOD AND DEVICE FOR BLOW MOLDING MATERIALS FROM HEAT-RESISTANT HIGH MOLECULAR COMPOUNDS
DE102021125327A1 (en) PROCESS FOR DECORATIVE WRAPPING IN SITU FOR POLYMER GOODS MADE BY ADDITIVE MANUFACTURING
DE3725436A1 (en) Process for producing a multilayer product
DE10014432A1 (en) Coating method for molded plastic vehicle components involves roughening the surface of the molded component during the molding stage
DE849305C (en) Process for the production of thin-walled, bottle-shaped vessels from solutions of film-forming plastics in the immersion process
EP0201045A3 (en) Method and apparatus for making blow-moulded hollow articles from thermoplastics
AT261472B (en) Complex hollow body
DE810721C (en) Process for the production of seamless and wrinkle-free molded bodies, in particular dolls' heads made of wood fiber
DE1227157B (en) Method for producing an implosion protection coating on television tubes
AT241097B (en) Process for the production of wooden objects covered with plastic, such as tabletops, window frames or the like.
AT246634B (en) Container with a one-piece wall made of thermoplastic material for media under pressure
DE2444465A1 (en) METHOD FOR MOLDING MULTI-LAYER PLASTIC OBJECTS
DE2058473C3 (en) Method for producing a two-layer hollow body
DE2220912B2 (en) Process for the injection molding of molded parts
DE1454961C (en) Molding tool for producing products from foam and method for producing such a molding tool. A.nm: Buonaiuto, Robert Benny, Ludlow, Hampden, Mass. (V.StA.)