Acronyms for plastic and aluminum foil composite film and bag for food packaging
When dealing with food packaging plastic bags and aluminum foil bags, you ca n’t avoid the abbreviations of various plastic films. For those who have just contacted, they always listen to the clouds. Haorun editor will summarize these for everyone Shorthand.
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1. Abbreviations
AL aluminum foil
BOPA (NY) biaxially oriented polyamide film , referred to as nylon
BOPET (PET) biaxially oriented polyester film
BOPP biaxially oriented polypropylene film
CPP cast polypropylene film
EAA vinyl - acrylic plastic
EEAK ethylene - ethyl acrylate plastic
EMA vinyl -methacrylic plastic
EVAC ethylene - vinyl acetate plastic
IONOMER ionic copolymer
PE polyethylene (collectively, it can include LDPE, LLDPE, MLLDPE, HDPE, surname PE, etc.)
HDPE high density polyethylene
LDPE low density polyethylene
LLDPE linear low density polyethylene
MDPE medium density polyethylene
MLLDPE metallocene linear low density polyethylene
PO polyolefin
PT cellophane
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Second, the symbol
The compound symbol " / ", compounding methods include:
——Dry composite dry lamination symbol " / dr. " ;
Dry compounding means that after the glue is applied, the solvent in the glue solution is fully dried by heating and exhausting, and then compounded in a "dry" state.
- solvent-free compound solvent free lamination symbol "/ sf.";
Solventless compounding is a method of using 100% solid solventless adhesives to compound two substrates together on a solventless compounding machine. It is also called reactive compounding.
- wet lamination wet lamination symbol "/ wt.";
Wet compounding is to compound the two materials together after gluing the first layer of substrate without going through the oven.
——Extrude composite extrusion lamination symbol " / ex. " ;
Extrusion compounding, also known as salivation compounding, is to melt thermoplastics such as polyethylene and polypropylene in an extruding compounding machine, and evenly flow out from the flat head in the form of a film, continuously coated on the substrate and pressed by a pressure roller It is cooled with the cooling roller to make two or more layers of composite film.
——Co-extrusion composite co-extrusion lamination symbol " / co. " ;
The co-extrusion compounding method is a process in which two or more extruders share a compound die to produce a multi-layer compound film.
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