lvov_yuriLvov, Yuri
Program Administrator, NSF NERO and GK
Phone: 318.257.5144
Fax: 318.257.4574
Kordal, RichardKordal, Richard
Director, Intellectual Property & Commercialization
Phone: 318.257.2484
Fax: 318.257.4487

Method for increasing the percentage of recycled paper in the production of paper-based products.

nanotechnology-300x159Technology Benefit
• Process allows for a dramatic increase (2x) in use of recycled paper without a loss in paper tensile strength
• Potential for huge cost savings because process allows for the use of a higher percentage of recycled pulp to virgin pulp
• Possibility to work with dirty water (mill black water) and re-use of the materials.
• Very simple process that can be easily scaled-up and integrated into existing mills.
• Low materials cost due to very thin polyelectrolyte coating.

Technology Applicationsnano3
• Treatment of mill broke or recycled pulp for its re-use in paper making.
• Possibility to process existing depots of dry mill broke for its recycling.

Detailed Technology Description
• This technology is based on the pioneering work of Dr. Yuri Lvov in the area of layer-by-layer nanoassembly.
• Layer-by-layer (LbL) assembly is a nanofabrication technique which has been used to produce multilayer coatings with nanometer precision through alternate adsorption of oppositely charged components.
• Using LBL process lignocellulose fibers (e.g., recycled pulp or mill waste “broke”) are coated with a thin layer of strength enhancing material. These nanocomposite wood fibers are then integrated into existing paper making processes to produce paper.
• This process can be adapted to produce paper with varying properties.