DE2831212A1 - Verfahren zur herstellung eines blasfilms - Google Patents

Verfahren zur herstellung eines blasfilms

Info

Publication number
DE2831212A1
DE2831212A1 DE19782831212 DE2831212A DE2831212A1 DE 2831212 A1 DE2831212 A1 DE 2831212A1 DE 19782831212 DE19782831212 DE 19782831212 DE 2831212 A DE2831212 A DE 2831212A DE 2831212 A1 DE2831212 A1 DE 2831212A1
Authority
DE
Germany
Prior art keywords
film
control
temperature
frost line
control area
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
DE19782831212
Other languages
German (de)
English (en)
Other versions
DE2831212C2 (enrdf_load_stackoverflow
Inventor
Carl Bradford Havens
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to DE19782831212 priority Critical patent/DE2831212A1/de
Publication of DE2831212A1 publication Critical patent/DE2831212A1/de
Application granted granted Critical
Publication of DE2831212C2 publication Critical patent/DE2831212C2/de
Granted 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
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/89—Internal treatment, e.g. by applying an internal cooling fluid stream
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92209—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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92314—Particular value claimed
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92428—Calibration, after-treatment, or cooling 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9279—Errors or malfunctioning, e.g. for quality control
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
DE19782831212 1978-07-15 1978-07-15 Verfahren zur herstellung eines blasfilms Granted DE2831212A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782831212 DE2831212A1 (de) 1978-07-15 1978-07-15 Verfahren zur herstellung eines blasfilms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782831212 DE2831212A1 (de) 1978-07-15 1978-07-15 Verfahren zur herstellung eines blasfilms

Publications (2)

Publication Number Publication Date
DE2831212A1 true DE2831212A1 (de) 1980-01-24
DE2831212C2 DE2831212C2 (enrdf_load_stackoverflow) 1987-05-21

Family

ID=6044513

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782831212 Granted DE2831212A1 (de) 1978-07-15 1978-07-15 Verfahren zur herstellung eines blasfilms

Country Status (1)

Country Link
DE (1) DE2831212A1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616687A1 (de) * 2004-07-14 2006-01-18 Kdesign GmbH Verfahren und Vorrichtung zur Produktionsüberwachung bei der Herstellung von Schlauchfolien
DE102005033205A1 (de) 2005-07-13 2007-01-18 Windmöller & Hölscher Kg Verfahren zur Einstellung der Formate von Blasfolienschläuchen sowie Blasfolienanlage mit einer Steuervorrichtung zur Ausführung derselben
US11305474B2 (en) * 2016-10-18 2022-04-19 Reifenhaeuser Gmbh & Co. Kg. Maschinenfabrik Method and system for making a plastic film

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1504665A1 (de) * 1961-07-17 1969-09-25 Du Pont Verfahren zur Herstellung von Folienschlaeuchen aus thermoplastischem polymerem Kunststoff und Vorrichtung zur Durchfuehrung desselben
DE1951645A1 (de) * 1968-10-22 1970-06-04 Prosyn S A Verfahren und Vorrichtung zur Herstellung zylindrischer Huellen aus thermoplastischem Material
DE1704521A1 (de) * 1967-02-10 1971-08-19 Bemberg Ag Verfahren und Vorrichtung zur Herstellung biaxial verstreckter Schlauchfolien mittels automatischer Druckeinstellung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1504665A1 (de) * 1961-07-17 1969-09-25 Du Pont Verfahren zur Herstellung von Folienschlaeuchen aus thermoplastischem polymerem Kunststoff und Vorrichtung zur Durchfuehrung desselben
DE1704521A1 (de) * 1967-02-10 1971-08-19 Bemberg Ag Verfahren und Vorrichtung zur Herstellung biaxial verstreckter Schlauchfolien mittels automatischer Druckeinstellung
DE1951645A1 (de) * 1968-10-22 1970-06-04 Prosyn S A Verfahren und Vorrichtung zur Herstellung zylindrischer Huellen aus thermoplastischem Material

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DE-Z: Plastverarbeiter, 1971/6, S. 398-402
Kunststoffe 68 (1978) 6, S. 343-347 *
Plastverarbeiter, 22. Jg. (1971) 6, S. 398-402 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616687A1 (de) * 2004-07-14 2006-01-18 Kdesign GmbH Verfahren und Vorrichtung zur Produktionsüberwachung bei der Herstellung von Schlauchfolien
DE102005033205A1 (de) 2005-07-13 2007-01-18 Windmöller & Hölscher Kg Verfahren zur Einstellung der Formate von Blasfolienschläuchen sowie Blasfolienanlage mit einer Steuervorrichtung zur Ausführung derselben
DE102005033205B4 (de) 2005-07-13 2010-12-02 Windmöller & Hölscher Kg Verfahren zur auftragsbezogenen Änderung des Folienschlauchformats von einem Ausgangsformat zu einem Endformat sowie Blasfolienanlage, an der diese Änderung durchführbar ist
DE102005033205C5 (de) * 2005-07-13 2017-10-12 Windmöller & Hölscher Kg Verfahren zur auftragsbezogenen Änderung des Folienschlauchformats von einem Ausgangsformat zu einem Endformat sowie Blasfolienanlage, an der diese Änderung durchführbar ist
EP1904284B1 (de) 2005-07-13 2018-05-30 Windmöller & Hölscher KG Verfahren zur einstellung der formate von blasfolienschläuchen sowie blasfolienanlage mit einer steuervorrichtung zur ausführung derselben
EP1904284B2 (de) † 2005-07-13 2022-02-16 Windmöller & Hölscher KG Verfahren zur einstellung der formate von blasfolienschläuchen
US11305474B2 (en) * 2016-10-18 2022-04-19 Reifenhaeuser Gmbh & Co. Kg. Maschinenfabrik Method and system for making a plastic film

Also Published As

Publication number Publication date
DE2831212C2 (enrdf_load_stackoverflow) 1987-05-21

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