PLA Coated Paper

Project @ a Glance

Contents

In conventional paper cups they are coated with PE (Polyethylene) derived from oil, to make board waterproof. Cups coated in PLA (Polylatic acid) the plastic is derived from plants, so both the board and the coating are derived from fully renewable sources.
Improved PLA-Based Compounds Provide a Competitive and Carbon Neutral Alternative to Polyethylene for Coated Paper Applications
Plastic-coated paper products include milk and juice cartons, hot and cold paper drinking cups, frozen food containers, plastic-lined paper bags, take-out containers and some paper plates.
The problem with plastic coatings such as PE coated products is what happens to the product after use when it enters disposal environment
PE is not biodegradable and is not completely assimilated by micro-organisms in the compost system
Polylactide (PLA) is the most studied and easily available biobased and bio-degradable polymer. As such PLA would
be a good candidate to be coated on to paper for complete compost ability at the end of life.
PLA properties can be tailored to be coatable and still meet the ASTM D6868
PLA-based coatings can be successfully processed on traditional PE lines when modifications are made to the formulation
PLA-based coated paper provides water-proofing and grease resistance that is competitive with a PE coated paper.
The PLA used for paper cups has been treated to enable it to withstand the temperature of hot drinks.

Basics

PLA for Paper Coating

Processing

Paper coating Machinery

Technology

Company Profiles

Project information