PL432317A1 - Method of producing polyester monofilaments from recyclates for food contact - Google Patents

Method of producing polyester monofilaments from recyclates for food contact

Info

Publication number
PL432317A1
PL432317A1 PL432317A PL43231719A PL432317A1 PL 432317 A1 PL432317 A1 PL 432317A1 PL 432317 A PL432317 A PL 432317A PL 43231719 A PL43231719 A PL 43231719A PL 432317 A1 PL432317 A1 PL 432317A1
Authority
PL
Poland
Prior art keywords
recyclate
optionally
recyclates
producing polyester
main
Prior art date
Application number
PL432317A
Other languages
Polish (pl)
Other versions
PL244014B1 (en
Inventor
Anita Frydrych
Ireneusz Udzielak
Original Assignee
Marcato Spółka Z Ograniczoną Odpowiedzialnością
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 Marcato Spółka Z Ograniczoną Odpowiedzialnością filed Critical Marcato Spółka Z Ograniczoną Odpowiedzialnością
Priority to PL432317A priority Critical patent/PL244014B1/en
Publication of PL432317A1 publication Critical patent/PL432317A1/en
Publication of PL244014B1 publication Critical patent/PL244014B1/en

Links

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Artificial Filaments (AREA)

Abstract

Przedmiotem zgłoszenia jest sposób wytwarzania monofolii poliestrowej z recyklatów do kontaktu z żywnością, który polega na tym, że recyklat poli(tereftalanu etylenu) PET w stanie stałym podgrzewa się w przepływie gorącego powietrza do temperatury 160°C do 210°C pod obniżonym ciśnieniem i/lub w przepływie gazu obojętnego, po czym produkt reakcji polikondensacji w stanie stałym połączonej z dekontaminacją chłodzi się do temperatury poniżej 100°C i kieruje do głównej wytłaczarki jedno- lub dwuślimakowej i prowadzi wytłaczanie folii w procesie ciągłym z zastosowaniem urządzenia wyposażonego w jedną główną wytłaczarkę i ewentualnie wytłaczarki dodatkowe, przy czym ewentualnie w bloku współwytłaczającym łączy się strumienie stopionego tworzywa pochodzące z wytłaczarki głównej i ewentualnie wytłaczarek dodatkowych w jeden uzyskując układ jednowarstwowy zawierający 100% recyklatu lub wielowarstwowy, przy czym ilość recyklatu w folii wielowarstwowej jest większa niż 50%.The subject of the application is a method of producing polyester monofilament from recyclates for contact with food, which consists in the fact that solid state poly (ethylene terephthalate) PET recyclate is heated in the flow of hot air to a temperature of 160 ° C to 210 ° C under reduced pressure and / or in an inert gas flow, whereafter the solid-state polycondensation reaction product combined with decontamination is cooled to a temperature below 100 ° C and directed to the main single or twin screw extruder and the film is extruded in a continuous process using a device equipped with one main extruder and optionally, additional extruders, where, optionally, in the coextrusion block, the melt streams from the main extruder and optionally additional extruders are combined into one to obtain a single-layer system containing 100% of recyclate or a multi-layer system, where the amount of recyclate in the multi-layer film is greater than 50%.

PL432317A 2019-12-20 2019-12-20 Method of producing polyester monofilaments from recyclates for food contact PL244014B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL432317A PL244014B1 (en) 2019-12-20 2019-12-20 Method of producing polyester monofilaments from recyclates for food contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL432317A PL244014B1 (en) 2019-12-20 2019-12-20 Method of producing polyester monofilaments from recyclates for food contact

Publications (2)

Publication Number Publication Date
PL432317A1 true PL432317A1 (en) 2021-06-28
PL244014B1 PL244014B1 (en) 2023-11-20

Family

ID=76547991

Family Applications (1)

Application Number Title Priority Date Filing Date
PL432317A PL244014B1 (en) 2019-12-20 2019-12-20 Method of producing polyester monofilaments from recyclates for food contact

Country Status (1)

Country Link
PL (1) PL244014B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL446385A1 (en) * 2023-10-13 2024-04-08 Makdor Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa Polyethylene terephthalate foil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL446385A1 (en) * 2023-10-13 2024-04-08 Makdor Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa Polyethylene terephthalate foil

Also Published As

Publication number Publication date
PL244014B1 (en) 2023-11-20

Similar Documents

Publication Publication Date Title
JP4724654B2 (en) Method and apparatus for heat treatment of polyester pellets
PL432317A1 (en) Method of producing polyester monofilaments from recyclates for food contact
CN101821078B (en) Method and apparatus for pretreatment of slider layer for extruded composite handrails
WO2006119175A3 (en) An advanced method and apparatus for cost-effectively and continuously producing expanded thermoformable honeycomb materials
JP2005512851A5 (en)
MX2020006873A (en) Circuit and process for managing transients in a plant for continuous mass production of granulated expandable polymers.
RU2005136436A (en) METHOD FOR MANUFACTURING AN ORIENTED FILM FROM THERMOPLASTIC POLYMER ALLOYS, DEVICE FOR ITS PRODUCTION OF FILM AND PRODUCTS OBTAINED AS A RESULT
WO2009053320A3 (en) Device and method for cooling an extruded plastic profile
ATE507952T1 (en) METHOD FOR PRODUCING A NON-ADHESIVE GRANULE FROM A POLYESTER MATERIAL AND FOR FURTHER PROCESSING A GRANULE PRODUCED IN THIS WAY
CN101583485A (en) Laminated film or sheet having foamed resin layer and process for producing the same
US20070001339A1 (en) Energy savings
CN105773989A (en) Preparation technology of plastic film
RU2012108591A (en) VINYL CHLORIDE POLYMER FILM AND METHOD FOR PRODUCING IT
JP5273682B2 (en) Method for granulating and crystallizing thermoplastic polymers
US20050167892A1 (en) Method for manufacturing a composite pipe with a tubular wall, this wall comprising at least one extruded tubular part made up of polymeric material
PL438949A1 (en) Method of producing polyester packaging with increased thermal resistance intended for hot-poured food products and/or intended for sterilization
PL432316A1 (en) Method of manufacturing recycled polyester packaging with improved thermal resistance intended for food contact
CN1613635B (en) Method for direct pouring polyethylene terephthalate smelt into film
MX2023008303A (en) Method of making flat foam sheet comprising recycled pet and the product resulting therefrom.
CN204936120U (en) Steady state pipe manufacturing equipment
DE602006005840D1 (en) ANNEX FOR THE TEMPERATURE-CONTROLLED TREATMENT OF FOOD PRODUCTS SUCH AS MILK OR THE LIKE
US20060097433A1 (en) Process for the production of a plastic film
WO2008133057A1 (en) Apparatus and process for production of deoxidizing resin composition and apparatus and process for production of deoxidizing resin film
EP1990176B1 (en) Expandable melt feed line
JP2000052336A (en) Manufacture of non-interadherent rubber pellet