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GB1270442A - Composite tubular film process and apparatus - Google Patents

Composite tubular film process and apparatus

Info

Publication number
GB1270442A
GB1270442A GB25341/69A GB2534169A GB1270442A GB 1270442 A GB1270442 A GB 1270442A GB 25341/69 A GB25341/69 A GB 25341/69A GB 2534169 A GB2534169 A GB 2534169A GB 1270442 A GB1270442 A GB 1270442A
Authority
GB
United Kingdom
Prior art keywords
materials
die
die head
film
passages
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
Application number
GB25341/69A
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.)
Pierson Industries Inc
PIERSON IND Inc
Original Assignee
Pierson Industries Inc
PIERSON IND Inc
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 Pierson Industries Inc, PIERSON IND Inc filed Critical Pierson Industries Inc
Publication of GB1270442A publication Critical patent/GB1270442A/en
Expired legal-status Critical Current

Links

Classifications

    • B29C48/913—
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
    • B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
    • B29C48/1472—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at the die nozzle exit zone
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • B29C48/338—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location using a die with concentric parts, e.g. rings, cylinders
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • B29C48/705—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows in the die zone, e.g. to create flow homogeneity
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/007—Using fluid under 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/355—Conveyors for extruded articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

1,270,442. Tubular laminated films. PIERSON INDUSTRIES Inc. 19 May, 1969 [20 May, 1968; 1 May, 1969], No. 25341/69. Heading B5B. Laminated films having plies of at least two different thermoplastic materials are extruded from a blown tubular die, which comprises a die head assembly mounted for rotation on a supporting die holder 36, the molten thermoplastic materials being conducted in separate flows from their respective extruders through adapters 26, 27, through passages 37, 38, 39 in the die holder 36, and into concentric annular chambers 55, 58, 59 in the die head to form tubular film plies which are united at a common internal orifice 71 before extrusion, the die head being rotated to remove irregularities in the film, and the molten materials being distributed from the die holder into the die head by annular reservoirs formed at the interface thereof. The die head assembly comprises three (as shown) concentric mandrels 40, 60, 61 (Figs. 3 and 4, not shown) and a ring 62 which define therebetween the annular chambers 55, 58, 59, the base-plates of the mandrels having passages through which the chambers communicate with the annular reservoirs and die holder passages, and the stems of the mandrels having spiral formations to homogenize the molten material. As shown, two different materials are used; one or three materials may be used with suitable adapters, as in Figs. 7 and 8 (not shown). Air is blown into the extruded tubular film through a port 107 in the innermost mandrel, and an external, circumferential, inwardly-directed air stream is provided by a rotating air ring (Fig. 1, not shown). Finally the tubular film is flattened between two inclined conveyer belts (Fig. 5, not shown) passing at one end round two nip rolls. In an example, nylon and polyethylene are used as film-forming materials.
GB25341/69A 1968-05-20 1969-05-19 Composite tubular film process and apparatus Expired GB1270442A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73050568A 1968-05-20 1968-05-20
US82094669A 1969-05-01 1969-05-01

Publications (1)

Publication Number Publication Date
GB1270442A true GB1270442A (en) 1972-04-12

Family

ID=27112064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25341/69A Expired GB1270442A (en) 1968-05-20 1969-05-19 Composite tubular film process and apparatus

Country Status (10)

Country Link
BE (1) BE733327A (en)
CA (1) CA934913A (en)
CH (1) CH523766A (en)
DE (1) DE1925460C3 (en)
DK (1) DK137787B (en)
FR (1) FR2008934B1 (en)
GB (1) GB1270442A (en)
NL (1) NL164794C (en)
NO (1) NO135571C (en)
SE (1) SE352277B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177103A (en) 1973-03-16 1979-12-04 Celloplast AB Norrkoeping Apparatus for the preparation of a multilayer film
US4254175A (en) 1973-03-16 1981-03-03 Josef Kubat Multilayer thermoplastic film laminate
EP1343399A2 (en) * 2000-12-08 2003-09-17 Process Marketing, Inc. Modular tower
EP1958756A1 (en) * 2007-02-13 2008-08-20 Kiefel Extrusion Gmbh Axial or cone spiral mandrel distributor for a blown film installation and method for manufacturing a multi-layered film
WO2017003307A1 (en) * 2015-06-29 2017-01-05 Secura B.C. Sp. Z O.O. Manifold for the heads of an extruder, and related method for producing plastic products using such an extruder
CN114750392A (en) * 2021-01-11 2022-07-15 山东智华生物科技研究院有限公司 Extrusion moulding machine for density-reducing biological full-degradable film

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51147556A (en) * 1975-06-13 1976-12-17 Toyo Soda Mfg Co Ltd Multiilayer rotary circular die
US4203715A (en) * 1978-03-24 1980-05-20 Ethyl Corporation Rotating joint for extrusion die

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB854368A (en) * 1956-02-20 1960-11-16 Celanese Corp Production of seamless tubing
CH362221A (en) * 1958-04-14 1962-05-31 Utz Kastulus Method and device for the production of plastic hoses
FR1437114A (en) * 1964-07-29 1966-04-29 Reifenhaeuser Kg Injection head with change of direction in particular for blow molding machines for sheet products as well as injection machines provided with said head
US3349437A (en) * 1965-12-08 1967-10-31 Nat Distillers Chem Corp Rotating die cap for extrusion die
GB1144046A (en) * 1966-02-05 1969-03-05 Induplas S P A Method and apparatus for the manufacturing of tubes of plastics material

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177103A (en) 1973-03-16 1979-12-04 Celloplast AB Norrkoeping Apparatus for the preparation of a multilayer film
US4254175A (en) 1973-03-16 1981-03-03 Josef Kubat Multilayer thermoplastic film laminate
EP1343399A2 (en) * 2000-12-08 2003-09-17 Process Marketing, Inc. Modular tower
EP1343399A4 (en) * 2000-12-08 2005-06-22 Process Marketing Inc Modular tower
EP1958756A1 (en) * 2007-02-13 2008-08-20 Kiefel Extrusion Gmbh Axial or cone spiral mandrel distributor for a blown film installation and method for manufacturing a multi-layered film
WO2017003307A1 (en) * 2015-06-29 2017-01-05 Secura B.C. Sp. Z O.O. Manifold for the heads of an extruder, and related method for producing plastic products using such an extruder
CN114750392A (en) * 2021-01-11 2022-07-15 山东智华生物科技研究院有限公司 Extrusion moulding machine for density-reducing biological full-degradable film
CN114750392B (en) * 2021-01-11 2024-05-28 山东智华生物科技研究院有限公司 Low-density biological full-degradation film extrusion molding machine

Also Published As

Publication number Publication date
FR2008934A1 (en) 1970-01-30
NL164794C (en) 1981-02-16
NO135571B (en) 1977-01-17
NO135571C (en) 1977-04-27
DK137787C (en) 1978-10-09
BE733327A (en) 1969-11-03
DK137787B (en) 1978-05-08
NL6907735A (en) 1969-11-24
SE352277B (en) 1972-12-27
DE1925460B2 (en) 1979-12-06
DE1925460C3 (en) 1981-11-26
NL164794B (en) 1980-09-15
DE1925460A1 (en) 1970-01-02
CH523766A (en) 1972-06-15
CA934913A (en) 1973-10-09
FR2008934B1 (en) 1973-11-16

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