Systems and methods for producing compostable beverage preparation pods from paper-based materials

The manufacturing system addresses curling and tearing issues in cellulosic sheets by localized drying and shaping, ensuring high structural integrity and shelf life of compostable beverage containers through continuous production.

JP2025530996APending Publication Date: 2025-09-19SOCIETE DES PRODUITS NESTLE SA
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Patent Information

Application Number
JP2025507002
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-08-12
Filing Date
2023-08-08
Publication Date
2025-09-19

AI Technical Summary

Technical Problem

The curling and tearing of cellulosic sheet materials during the manufacturing of compostable beverage containers, particularly in non-shaped portions, compromise the structural integrity and shelf life of the containers, and hinder continuous industrial production.

Method used

A manufacturing system that includes a handling unit for transporting sheets, a moistening unit for applying a wetting agent, a forming unit for shaping, and a lateral drying unit to dry the sheet's edges while maintaining the forming portion moist, ensuring localized drying and preventing curling, allowing for continuous production.

Benefits of technology

The system ensures high structural integrity and shelf life of compostable pods by preventing curling and tearing, enabling efficient and continuous manufacturing of compostable beverage containers.

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Abstract

The present invention relates to a system 100 for producing compostable pods 900 for brewing products. The pods are made from a sheet 600 made of a biodegradable cellulosic material. The system includes a molding line 200 having a handling unit 300 for transporting the sheet along a transport direction TD. The molding line further includes a moistening unit 400 for moistening one side of the sheet with a wetting agent 401, and a forming unit 800 for molding a portion of the moistened sheet into a three-dimensional shape to form a pod element 910 defining a pod cavity 911. The portion 642 is located between opposite side edges 631, 632 of the sheet with respect to the transport direction. The molding line further includes a drying unit 500 arranged to dry the opposite side edge portions of the moistened sheet 641 while keeping the portion to be molded moist. The drying unit is arranged downstream of the moistening unit and upstream of the forming unit.
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