Method and apparatus for packing glass sheets with interleaf paper

The interleaf material with a substrate-coated dispersing medium, surfactant, and defoamer addresses protection and contamination issues, ensuring stability and low electrostatic charge, with improved shelf life and reduced particle density.

WO2026054924A1 Publication Date: 2026-03-12CORNING INC
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Patent Information

Application Number
PCT/US2025/040866
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-09-09
Filing Date
2025-08-06
Publication Date
2026-03-12

AI Technical Summary

Technical Problem

Existing interleaf materials for glass sheets fail to effectively protect against damage, contamination, and electrostatic charge while maintaining stability in varying environments, often at a cost-effective manner.

Method used

An interleaf material comprising a substrate coated with a dispersing medium, water soluble surfactant, and water insoluble defoamer, which enhances dispersion and stability, reducing foaming and improving wettability.

Benefits of technology

The interleaf material provides enhanced protection against damage and contamination, maintains low electrostatic charge, and ensures stability under varying conditions, with improved shelf life and reduced particle density on glass surfaces.

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Abstract

An interleaf for glass sheets includes a substrate and a coating material deposited on the substrate wherein the coating material includes a dispersing medium, a water soluble surfactant, and a water insoluble defoamer.
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