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Updated: May 25, 2026

Sampling, Identification and Characterization of Microplastics Release from Polypropylene Baby Feeding Bottle during Daily Use
Published on: July 24, 2021
Openability of soft drinks PET packagings
Danilo Corrêa Silva1, Luis Carlos Paschoarelli, José Carlos Plácido da Silva
1Department of Design, Paulista State University, Av. Eng. Luiz Edmundo C. Coube 14-01, Vargem Limpa, Bauru, São Paulo, Brazil. danilo@idemdesign.net
Abstract:
Studies on packaging accessibility are still incipient in Brazil. Many of these packagings can represent a challenge to users, whether due to non-informative labels, tricky tabs or seals, or even those that need strength to open. This paper brings a simple test to determine the necessary torque force to open PET bottles, and to predict the amount of users that could not open it. The findings suggest that a considerable amount of users could not open it or would have some difficulties to exert the necessary force.
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