Reactive Ink Based Single-Swipe Detection of Treated Lumber


Reference #: 01159

The University of South Carolina is offering licensing opportunities for reactive ink based single-swipe detection of treated lumber.



The bulk of treated lumber is produced by treating wood with high pressure solutions of copper salts of antimicrobial amines. This wood is not suitable for recycling use inside of homes, for composting, as a source of paper products, or for burning as fuel due to its high copper content. The US Department of Agriculture estimates that approximately 20 billion cubic feet of wood products are generated per year in the United States, and consumers and waste industry workers need to be able to easily differentiate between toxic and non-toxic lumber in order to avoid misuse and to make lumber recycling more efficient.


Invention Description:

This invention is a kit that applies a solution containing color change agent and an antioxidant to wood for the purpose of detecting whether a wood has been treated with a metal.


Potential Applications:

Detecting whether a wood has been treated with a metal.


Advantages and Benefits:

Use of this detection method can ensure that pressured treated boards are not misused by being employed around food, burnt for fuel, or placed in contact with children, therefore limiting human contact and interaction with toxic chemicals while enabling the re-use of untreated wood. This product can help ensure that wood is properly used, disposed of, and treated so that the toxicity affects the environment as little as possible, as well as maintaining a longer shelf life than currently-used solutions.





Patent Information:
For Information, Contact:
Technology Commercialization
University of South Carolina
John Ferry
Michael Bagley
© 2019. All Rights Reserved. Powered by Inteum