DE1915416A1 - Verfahren und Vorrichtung zum Versiegeln thermoplastischer Schichtfolien - Google Patents

Verfahren und Vorrichtung zum Versiegeln thermoplastischer Schichtfolien

Info

Publication number
DE1915416A1
DE1915416A1 DE19691915416 DE1915416A DE1915416A1 DE 1915416 A1 DE1915416 A1 DE 1915416A1 DE 19691915416 DE19691915416 DE 19691915416 DE 1915416 A DE1915416 A DE 1915416A DE 1915416 A1 DE1915416 A1 DE 1915416A1
Authority
DE
Germany
Prior art keywords
heating
component
melting point
sealing
point
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
DE19691915416
Other languages
English (en)
Inventor
Samson Dr Sigbert
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.)
Akzo NV
Original Assignee
Algemene Kunstzijde Unie NV
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 Algemene Kunstzijde Unie NV filed Critical Algemene Kunstzijde Unie NV
Publication of DE1915416A1 publication Critical patent/DE1915416A1/de
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
    • 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
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/40—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
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C66/712—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 the composition of one of the parts to be joined being different from the composition of the other part
    • 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
    • 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
    • B29C66/731—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 intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • B29C66/73115—Melting point
    • 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
    • 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
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91441—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time
    • B29C66/91443—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile
    • B29C66/91445—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile by steps
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/38—Impulse heating
    • 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
    • B29C66/80—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
    • B29C66/81433—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 being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • B29C66/949—Measuring or controlling the joining process by measuring or controlling the time characterised by specific time values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Description

DR. .ELISABETH JUNG, DR. VOLKER VOSSIUS. DIPL-ING. GERHARD COLDEWEY
, PATENTANWÄLTE
8 MÖNCHEN 23 · SIEGESSTRASSE 28 · TELEFON 345067 . TELEGRAM M-ADRESSE: INVENT/M ONCHEN
TELEX 5 29
AKU 1193- (ra/öy/fta)
Arnheim9
irad forrielitirag zum Versiegeln thermoplastischer
s 2, April 1968, ' Hiederlirade 9 W-, 68-04634
Di® Erfindung betrifft ©in Verfahren is«m ¥@rsieg©ln FoIiSa9 die jsie aus awei oä&T aeteensn sicla Schichten verschiedener ^lieirmoplastiestes0 Polymerisat · komponenten mit verschiedenen Ere©ieferagepasten bestehen, durch Anwendtang von Wärme nnä Brack«
Erfahrung hat gssseigt, daß man beim Versiegeln zweier mehr-
schichtiger Folien nach dem gewöhnlich für einschichtige
*». lien verwendeten Verfahren im allgemeinen Versiegelungen unge-v
'"< .nügender Stärke und Einheitlichkeit" erhält ο
Lass ev£ii»&migsBßimM® Te rf aar·« m.v das nicht clles©in Nachteil &iaf-=> ;„ ist 'liaeUireln :§©1©ϊΐη&ί@1ο1ιιΐα©·%Β äuß ü'X® -folien an
POSTSCHECKKONTO: MÖNCHEN 60175 · BANKKONTO: DEUTSCHE BANK A. G. MÖNCHEN, LEOPOLDSTR. 71. KTO. NB. 60/35794
BAD
tsnter Vordruck stehenden Yereiegelmigaetalle zuerst auf eine Temperatur erwärmt werden9 die mindestens gleich dam Erweichungspunkt der Komponente mit ctsm niedrigsten Schmelzpunkt ist, aber unter dera Erweichungspunkt ü&t Komponente mit dem höchsten Schmelzpunkt liegt, und daß Sie Folieswersiegeluiagastelle erst .dann auf eine Tssapssfatus· erwärmt' v/ird.9 die min-* destens gleish dem Ere-aiehimgapmiL't d©r Komponente mit dem höchsten SchmelapimTt^ ist ο ubsrrsseheiiderweis·» werden so %\<t®%. oder mehrere Schichten eier Kcm;s-öa©Rtö mit dera höchsten Sc^mals punkt miteinander-
V/enn der Druck währenä d©sl ©r*3tsr= Irv/ärmung
2 hoch genug gehalten wird, ä-Λΐο höher als 100 kp/cm 9 jsöo«h /orsugaweise jsiiisehen 3G0 und n-300 kp/ern 9 ex-hält maß eine Ter sieg'3lung ^on gleicher odsr gröierar Stärke ala bei i baren einaohiehtigen
ErfindungegemlJJ werden gute Ergebnisse ersielt, wenn der auf die Varsiegellungsstells aufgebrachte Druck während dar ge=> nannten zweiten Erwärmung auf eine höhere Temperatur beträcht lich niedriger gehalten wird als während der eisten Erwärmung^ Voreugaweiss beträgt der auf die Veraiegelungesteile
2 te Druck während der sweiten Erwärmung etwa 2 bis 8 kp/cm «
Erfindungagemäfl wird das Verfahren einfaoa und wirkungsvoll durchgeführt^ wenn die erste JSrwärmuiög allmählich in die te Erwärmung Ü1bergefcts miü ^eim diese tinuiarliöh disrehgsfüh./t yvTtlm'i»
909846/0936
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Dae erfindungsgemäfle Verfahren läßt sich besondere vorteilhaft dann durchführen, wenn in jeder Folie die aus der Komponente mit dem höchsten Schmelzpunkt bestehenden Schichten au-Bammen eine ßseamtdicke von mindestens 0,005 mm habenο Insbesondere ist das eriTindungegemäß© Verfahren sur Verwendung beim Versiegeln von Folien bestimmt« deren aufeinanderfolgende Schichten prakti&ah nicht mischbar sincL Gute Ergebnisse wer den beim Versiegeln von Folien d&nn ersielt, wenn ihre aufeinanderfolgenden Schichten im wesentlichen aus Polyäthylen und Polyamid bestehen, die Gesamtdicke 3©tler Folie veniger als 0,100 mm beträgt, und jede der Folien acht Schichten aufweist<, Es ist jedoch auch möglich, eine weit größere Aneahl von Schichten, s*Bo eweiunddreissig Schichten, bu verwendenη Bei einer bevorsugten Ausführungeform der Erfindung ist die Folie an der Versiegelungsstelle mit Gase bedeckt, oder die Ober« flächen der mit den Folien in Berührung kommenden Versiege» lungs-Klemmbacken sind profiliert«
Zuttttslich betrifft die Erfindung eine Vorrichtung sur Durch führung de» Verfahrens, die eine Einrichtung sum Aufbringen von Druck auf dl« su versiegelnden Folien und Heiselentnt« aufweist und dl« dadurch gtkcnneeichntt sind, daS die Htlstlt-Btntt «inen ersten, »nd anschlleBend einen «weiten Wfirmeetrom •rseugtnt
Di· Erfindung wird nachstehend anhand der Zeichnung noch n*> her erläuterte
lie se igen J
909846/093Ü BAD ORIGINAL
Figo 1 das Versiegeln von Schichtfolien unter Verwendung von ■
Gasse zwischen den Klemmbacken* und Figo 2 eine Schichtfolie in vergrößerter Darstellung»
1 see igt zwei Folien 1 und 2, deren wischen Klemmbacken 3 und 4 befindlich® Kanten miteinander verschmolzen werden solleno Zwischen der oberen Klemmbacke 3 und der Folie 1 let eine Gaze 5 vorgesehene Xn einer Ausführungsform bestand ,Jede Folie aus acht Schichten, die abwechselnd im wesentlichen aus Polyäthylen und Polyamid gebildet waren«
Die Polyäthylen» und Polyamidschichten sind in Figo 2 mit den Bezugsziffern 6 bzw» 7 bezeichnete Beiden Polyraarisatkcmponen ten waren einige Gewichtsprozent eines die Adhäsion zwischen den Schichten jeder Folie fördernden Mittels beigegeben«
Sin derartiges Mittel besteht z.B* aus einem saure Gruppen | e.nthaltenden Alkcnmischpolymerieat, wie ZnBo einem Mischpolymerisat aus Äthylen und Acrylsäureο Die Klemmbacken 3 und 4 werden dabei in Richtung der Pfeile 8 und 9 zusammengepreßt« wodurch auf die zu versiegelnden Folien 1 und 2 ein Druck von 625 kp/cm tatsächlicher Auflagefläche zwischen den Klemm« backen und den Folien aufgebracht wurde, während gleichzeitig das Folienmaterial in einem ersten Erwärmungsvorgang ttber die Klemmbacken auf eine Temperatur von 14O0C erwärmt wurde.
Diese Temperatur liegt über dem Erweichungspunkt der Polymer! satücomponeiite mit dem niedrigsten Schmelzpunkt (Polyäthylen)
909846/0 9 36
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und unter d@m Erweichungspunkt der Polyaiigriaatkomponente mit dem höchsten Schmelzpunkt (Polyamid)ο
Anschließend wurde iie Yarsiegelusag im einem aweiten mungsvorgang ,.und "bei eimern weit g@rirag@i?©n Dra©k von etwa 2 bis 8 kp/©m auf etwa 2200C3 aah0 "fÖJ®2p-den- iSrweietongspunkt des verwendeten.Polyamids, erwärmtο Bann-wurden die Klemmbacken geöffnet und die Versiegelung war beendet»
Es geigte SIcIi8 te© Baeto. dem ?@rei@gel& die ssusa fr®siB©si der Folien benötigte, senkreemt sut- .Eben® &®τ im ^ig« 1 dargestell ten ¥era£<eg©ltragj geriöhtete Eraft 228© gp pro 30 mm Sing®
Es ist SB beachten., da© bei gsw@i im w©s@2itli©feieini aus Polyamid foestehenctesa;, versiegelten einschichtigen Folien mit-einer "Sicke von j® OpOgO Bim die 221m Srennea &®r versiegelten folien be·-« nötigt© 0 s@]ßkr©eht iur Eben© der in Figo 1 iargest©llt@E Versiegelung g®rielat©te Kraft .-nur 1284gp' pro 30 mm Länge betrüge, so dai hier der fersiegelungsgrad viel gerisiger war al© bei den _@rfindLun,gss@mäi miteinandss* verschmolzenen -Schichtfolien-j
Beim Yerssiegelia äi©s©ip ©insciaiehtigen P@lyamiäfoli@n wurde der
2 <& AwpT^B^TUok. von etwa 2 bis 8 kp pro sm i@r tat«
Auflageflache aufgebrachte, "wobei tos ®u versiegelnd® eiinsm eiaajigea ¥©i?fah3?©ifis©ehritt auf etwa 220 0
909846/0936 BAD ORIGINAL
1.9 f 54 re
erwärmt wurde
war beaflglieto der Burehführuag des ©r£induagsge~ Verf&tirsas sia erster UBd eia gleiter Järwärnnaagsseihiiritt-
<aiB allEsäfelieher Übergaiag etattfisadeup mind di©8 oatiaijiei'lichea ¥©iafato'©asai3lai!f in in weni'ger als ©iaer Sefeiadee
iegeln voe Schicfetfoliea wus*d® die ay©r@icli©nd@ festigkeit 2280 gp/30 aim ©r^sielitg Ss wird Jodscli aagenomraesiD öal
wie ^0B0 3000
kein© ©ai© TSE^iesafl-at virö», köasa@a dli© Klemmbackea 3. mit Stiften wersefeea od@3? auf ©aäsre-Weise profiliert
Die Versisg^lmgsstell© kaaa flsaretoi iipgeadeisa toeksaateswi@ SSoBo EoclifK^uens«, ICoatakt«=, Impails- ©dler Ultra-
werden o . - -
9098A6/093G
BAD ORIGINAL

Claims (1)

  1. Patentansprüche
    i| Verfahren aiam Versiegeln miiuSeetesis zweies1 Folien, die jede aus zwei oder mehreren sich atovretehselnden. Schichten verschiedener thermoplastischer Folyme^ieatkotaponenten mit verschiedenen Erweichungspunkten testeten, durch Anwendung von Wärme und Druckt dadurch gekenneelchn et, daS die Folien an der unter Vordruck stehenden Veraiegelungestelle eueret auf eine Temperatur eiraärat werden, die minder stens gleich dem Erweichungspunkt der Komponente mit dem niedrigsten Schmelzpunkt let ,aber unter dem Erweichungspunkt der Komponente mit dem höchsten Schmelzpunkt liegt*, und daß die iOXieiivereiegelungiietelle erst dann auf eine Temperatur ervrßrmt wird, die mindestens gleich Sem Erweichungspunkt der Komponente mit dem hueherten Schmelzpunkt ist, worauf sv/ci oder mehrere Schiebten der Komponente mit dem höchsten Schmelzpunkt miteinander verschmelzen«
    Ve r fahrer, nach Anspruch 1t de. durch gekennzeichnet f daß der Pruck wiihrend der ersten Erwärmung mehr alo 100 kp/6m beträgt„
    c Verfahren ncch Anspruch 2, dadurch g e. k e η η ζ e i c Ii Yi e t , daß der !Oruci: wiikrend der ersten Erwärmung zwicchen 500 ur*d 1800 kp/cm , Ev/ectenäßigerweiee jedoch zwischen 500 und 1000 kp/ca£ t
    4* Verfährst *u-?.eL Ansprüchen * - 3, -ίε. ά « r c h g e k e im
    909846/0936
    BAD ORIGINAL ^
    zeichnet e daß der auf die Vereiegeluagestelle wir- ■ ν kende Druck während der zweiten Erwärmung auf eine höhere Temperatur beträchtlich niedriger gehalten wird als während der ersten Erwärmung«,
    5<> Verfahren stach Anspruch 4P dadurch gekennzeichnet, d&0 der auf die Versiegelungestelle wir«=» kende Brück während'der zweiten Erwärmung weniger ale etwa - ■ 20 oder 30 kp/cm t ssweelEmäSigerweise etwa 2 bis 8 kp/cm , beträgtο
    S0 Verfahren iaach einem der Ansprüche 1 bis 5, dadurch' gekennzeichnet , daß die erste Erwärmungestufe durch Temperaturerhöhung allmählich in die zweite Erwärmungen stufe übergehtr wobei diese Erwärmungsvorgänge kontinuierlich durchgeführt werden«
    7c. Verfahren nach Ansprüchen 1 bis 6, dadurch ge=* kennzeichnet, daß bei jeder Folie für die aus der Komponente mit dem höchsten Schmelzpunkt bestehenden Schichten zusammen eine Gesamtdicke von mindestens 0,005 mm gewählt wird*
    8ο Verfahren imch Ansprüchen 1 bis 7» dadurch ge« kennzeichnet, daß die Polymerisatkomponenten der aufeinanderfolgenden Schichten als praktisch nicht ■
    miteinander miechbas* gewählt eind-
    909846/0936
    BADORIGfI^L1 _..,..,
    ο Verfahren na©h Ansprüehen 1 bis 8/.I a'i a? 8 h ge *··
    aus * im "-weaentliehes». aim .Polyäthylen und Polyasaid bestehend gewählt werden.
    1Oo Verfahren-nach Änspyüehen 1 Tbis 9.» -d a. d \i τ © h g β kennze'ieh'net B daß die §©saratdicke jeder folie weniger als O0100 sam gewählt wird«,. -
    ο Verfahren B®eh Ansprüchen i bis- 1O9- d-ad.B r c h g @ -
    1§ο ¥®rfato©n na&h Ansprüehen 1 bis ΐΐ? i si a ? e h ge -· k ® η η % <8 i q h β © t T. daß »lie Folie aa dl st stell® üb it @ag® bedeekt wird ο
    11e .d a <ä na r e h -g
    π ken-a^eiehnet ,," flai die Ofeerf lästee ö®? mit folien lsi Berührung loxaisenaen Yt
    profiliert gewählt werden«
    ο forfiüiitMfig ®wa BiarehfühF-esi eins® Terfahrens nash
    1 bis 13 iHit iBltnBT MinriGkitnmg mm. Awfbriagea vom Dr«sk auf die mm versiegelnden foliexs« umd :nit Heis©leraent©nP 1 Ά f y τ Q h g € k a ö ώ ti & i e h η e t 5; ilaS die H@i%-··· *b® eo geetrnaert ®indp "OaS dieaelbesu geaiäß einem
    9098A6/0936 BAD
    40- ■ -
    15*' Yö'ffißSitimg mMute hnapTUßh 14? ή & ά μ τ ü h g « ·=>: ksnas.® lehnet; 0 daß öle Heisg.el'ement® einen ■ Wärmefliuß und anschlleBsna einea aweiten-"Wärme-=
    9098A6/0936
    BAD ORfOINAi
DE19691915416 1968-04-02 1969-03-26 Verfahren und Vorrichtung zum Versiegeln thermoplastischer Schichtfolien Pending DE1915416A1 (de)

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Application Number Priority Date Filing Date Title
NL6804634A NL6804634A (de) 1968-04-02 1968-04-02

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DE1915416A1 true DE1915416A1 (de) 1969-11-13

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DE19691915416 Pending DE1915416A1 (de) 1968-04-02 1969-03-26 Verfahren und Vorrichtung zum Versiegeln thermoplastischer Schichtfolien

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US (1) US3616004A (de)
CH (1) CH514419A (de)
DE (1) DE1915416A1 (de)
FR (1) FR2005363A1 (de)
GB (1) GB1269066A (de)
NL (1) NL6804634A (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151971A (de) * 1974-05-31 1975-12-06
US4102730A (en) * 1975-06-06 1978-07-25 General Binding Corporation Two stage oven laminator
US4056422A (en) * 1975-06-06 1977-11-01 General Binding Corporation Two stage oven laminator method
GB1535982A (en) * 1976-08-04 1978-12-13 Leer Koninklijke Emballage Dry lamination
DE3233106C2 (de) * 1982-09-02 1986-01-09 Schweizerische Aluminium Ag, Chippis Verfahren zum Herstellen eines Dosendeckels
FI73923C (fi) * 1985-11-27 1991-01-01 Wihuri Oy Polyamidhaltig maongskiktsfilm.
DE69806233T2 (de) * 1997-04-04 2002-10-31 Cryovac, Inc. Beutel mit schutzauflagen und verschluss durch die schutzauflagen
GB0114018D0 (en) * 2001-06-08 2001-08-01 United Biscuits Ltd Improvements in and relating to packaging

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FR2005363A1 (de) 1969-12-12
NL6804634A (de) 1969-10-06
US3616004A (en) 1971-10-26
CH514419A (de) 1971-10-31
GB1269066A (en) 1972-03-29

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