Cleaning composition for removing ink, cleaning solvent, and paint cleaning method

A cleaning composition with hexylene glycol, diethylene glycol monobutyl ether, and 4-(methylthio)butanol addresses the limitations of conventional solvents by offering a safe, odorless, high-flash-point solution for both oil-based and water-based paints, ensuring repeated use and environmental safety.

WO2025258890A1PCT designated stage Publication Date: 2025-12-18KT&G CO LTD
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Patent Information

Application Number
PCT/KR2025/007180
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-11
Filing Date
2025-05-27
Publication Date
2025-12-18

AI Technical Summary

Technical Problem

Conventional paint cleaning solvents pose health risks, have low flash points, emit foul odors, are corrosive, and are difficult to dispose of, while being ineffective for both oil-based and water-based paints.

Method used

A cleaning composition comprising hexylene glycol, diethylene glycol monobutyl ether, and 4-(methylthio)butanol, which can be reused and mixed with water, providing a safe, odorless, and high-flash-point solution for removing both types of paints.

Benefits of technology

The composition allows safe, effective, and repeated use for cleaning both oil-based and water-based paints without fire risk, maintaining a pleasant environment and reducing disposal costs.

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Abstract

Disclosed embodiments relate to a cleaning composition, a cleaning solvent, and a paint cleaning method. The cleaning composition according to one embodiment may include hexylene glycol, diethylene glycol monobutyl ether, and 4-(methylthio)butanol.
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Citation Information

Patent Citations

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