With increasing global environmental awareness, many regions have implemented strict plastic bans, gradually replacing plastic straws with paper straws. However, this shift has troubled some milk tea lovers. The experience of drinking milk tea with paper straws is far less enjoyable than before, with some even jokingly saying, "The paper straw degrades in my mouth."
Paper straws are typically made of two layers of inner paper and one layer of outer paper, rolled together from bleached sulfate softwood pulp and hardwood pulp, with adhesive applied between each layer. In contrast, milk tea sealing films are usually made of materials like PE, PP, and PET, which are more rigid. Paper straws coated with ordinary adhesive easily dissolve and disperse in 60°C water after 20 minutes.
This change not only affects the taste of milk tea but may also pose new environmental challenges. While paper straws have their advantages in terms of environmental protection, how to improve the user experience while ensuring environ
