This method is primarily intended for researchers, quality control laboratories, and environmental analysts who need to quantify plastic coatings in paper-based food packaging such as paper cups. It is also useful for manufacturers aiming to ensure product compliance with material standards and sustainability requirements.

What it is: A chemical method using Schweizer’s reagent to separate cellulose from plastic in paper cups.

How it works: The reagent dissolves paper (cellulose), leaving plastic behind. Measuring the remaining residue, the plastic content can be quantified, often by gravimetric analysis

Purpose: To determine the amount of plastic in paper cups for quality and environmental analysis.

TARGET GROUP

It can be used by researchers, quality control laboratories, and environmental analysts. Additionally, regulatory agencies and academic institutions can utilize this technique for monitoring plastic usage and assessing environmental impact in disposable packaging materials.

FURTHER INFORMATION

Schweizer’s reagent method can support „Single‑Use Plastics Directive (EU) 2019/904“by experimentally verifying the actual plastic content in paper cups. It can provide a practical analytical method to check whether manufacturers are complying by reducing plastic content.