CH497272A - Process for the production of bags, sacks, film tubes or film webs made of plastic in the injection molding process as well as injection tools for carrying out the process - Google Patents

Process for the production of bags, sacks, film tubes or film webs made of plastic in the injection molding process as well as injection tools for carrying out the process

Info

Publication number
CH497272A
CH497272A CH1337569A CH1337569A CH497272A CH 497272 A CH497272 A CH 497272A CH 1337569 A CH1337569 A CH 1337569A CH 1337569 A CH1337569 A CH 1337569A CH 497272 A CH497272 A CH 497272A
Authority
CH
Switzerland
Prior art keywords
film
sacks
bags
plastic
carrying
Prior art date
Application number
CH1337569A
Other languages
German (de)
Inventor
Patrick Burke Ronald
Original Assignee
Goulding Ltd W & H M
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 Goulding Ltd W & H M filed Critical Goulding Ltd W & H M
Publication of CH497272A publication Critical patent/CH497272A/en

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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—Cooling
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the 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
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Making Paper Articles (AREA)
CH1337569A 1968-09-12 1969-09-04 Process for the production of bags, sacks, film tubes or film webs made of plastic in the injection molding process as well as injection tools for carrying out the process CH497272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43324/68A GB1287404A (en) 1968-09-12 1968-09-12 The manufacture of plastics bags, sacks and tubular or sheet film

Publications (1)

Publication Number Publication Date
CH497272A true CH497272A (en) 1970-10-15

Family

ID=10428271

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1337569A CH497272A (en) 1968-09-12 1969-09-04 Process for the production of bags, sacks, film tubes or film webs made of plastic in the injection molding process as well as injection tools for carrying out the process

Country Status (9)

Country Link
JP (1) JPS5144151B1 (en)
CA (1) CA926062A (en)
CH (1) CH497272A (en)
DE (2) DE1966951A1 (en)
DK (1) DK133805B (en)
FR (1) FR2018008A1 (en)
GB (1) GB1287404A (en)
IE (1) IE33555B1 (en)
NL (1) NL6913965A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL190570C (en) * 1978-05-05 1994-05-02 Lely Nv C Van Der Device for spreading granular and / or powdery material.
NL7810805A (en) * 1978-10-31 1980-05-02 Lely Nv C Van Der DEVICE FOR SPREADING GRAIN AND / OR POWDER MATERIAL.
DE2908949C2 (en) * 1979-03-07 1982-07-15 Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen Centrifugal fertilizer spreader
JPS5885034U (en) * 1981-12-04 1983-06-09 株式会社イナックス Tile panels used in equipment units
DE3505382A1 (en) * 1985-02-16 1986-08-21 Accord-Landmaschinen Heinrich Weiste & Co Gmbh, 4770 Soest DOUBLE DISC SPREADER
JPS6219431A (en) * 1985-07-19 1987-01-28 Terumo Corp Manufacture of annular thermoplastic resin film with roughened inner surface and device thereof
GB2190035A (en) * 1986-05-08 1987-11-11 Polysystems Machinery Manufact Film extrustion die-lip heater
DE3643853A1 (en) * 1986-12-22 1988-06-30 Amazonen Werke Dreyer H Broadcaster
JPH03119086U (en) * 1990-03-19 1991-12-09
JPH05222758A (en) * 1992-02-13 1993-08-31 Inax Corp Urinal unit

Also Published As

Publication number Publication date
DE1944918B2 (en) 1976-03-18
DK133805B (en) 1976-07-26
DK133805C (en) 1976-12-13
NL6913965A (en) 1970-03-16
DE1944918A1 (en) 1970-03-19
CA926062A (en) 1973-05-15
JPS5144151B1 (en) 1976-11-26
FR2018008A1 (en) 1970-05-29
GB1287404A (en) 1972-08-31
DE6934811U (en) 1973-05-24
IE33555L (en) 1970-03-12
DE1966951A1 (en) 1976-02-05
IE33555B1 (en) 1974-08-07

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Legal Events

Date Code Title Description
PL Patent ceased