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Journal articles
Open Access
Use of uv-visible diffuse reflectance spectroscopy for chromophore research on wood fibers: a review, TAPPI JOURNAL, February 1993, Vol. 76(2)

Use of uv-visible diffuse reflectance spectroscopy for chromophore research on wood fibers: a review, TAPPI JOURNAL, February 1993, Vol. 76(2)

Journal articles
Open Access
On-machine maintenance, TAPPI JOURNAL, August 1991, Vol. 74(8)

On-machine maintenance, TAPPI JOURNAL, August 1991, Vol. 74(8)

Journal articles
Open Access
Pigment-cobinder interactions and their impact on coating rheology, dewatering, and performance, TAPPI JOURNAL, December 1991, Vol. 74(12)

Pigment-cobinder interactions and their impact on coating rheology, dewatering, and performance, TAPPI JOURNAL, December 1991, Vol. 74(12)

Journal articles
Open Access
New trends in deinking technology removing difficult inks from wastepaper, TAPPI JOURNAL, February 1991, Vol. 74(2)

New trends in deinking technology removing difficult inks from wastepaper, TAPPI JOURNAL, February 1991, Vol. 74(2)

Journal articles
Open Access
Color removal from kraft bleach-plant effluents by trichoderma sp., TAPPI JOURNAL, January 1991, Vol. 74(1)

Color removal from kraft bleach-plant effluents by trichoderma sp., TAPPI JOURNAL, January 1991, Vol. 74(1)

Journal articles
Open Access
Bleaching deinked pulps, TAPPI JOURNAL, January 1991, Vol. 74(1)

Bleaching deinked pulps, TAPPI JOURNAL, January 1991, Vol. 74(1)

Journal articles
Open Access
Alkaline papermaking: an overview, TAPPI JOURNAL, July 1991, Vol. 74(7)

Alkaline papermaking: an overview, TAPPI JOURNAL, July 1991, Vol. 74(7)

Journal articles
Open Access
Effect of drying conditions on the quality of wood-containing lightweight coated paper, TAPPI JOURNAL, May 1991, Vol. 74(5)

Effect of drying conditions on the quality of wood-containing lightweight coated paper, TAPPI JOURNAL, May 1991, Vol. 74(5)

Journal articles
Open Access
Fine paper properties and the effects of wet-end starch when using deinked recycled fiber in an alkaline system, TAPPI JOURNAL, May 1991, Vol. 74(5)

Fine paper properties and the effects of wet-end starch when using deinked recycled fiber in an alkaline system, TAPPI JOURNAL, May 1991, Vol. 74(5)

Journal articles
Open Access
Water and grease resistance of paperboard coated with long chain cellulose fatty acid esters using electrostatic powder coating, TAPPI Journal April 2026

ABSTRACT: Fiber-based materials used for foodservice, takeaway, and other packaging applications must typically provide water and grease resistance. Simultaneously, there is growing interest towards bio-based and renewable barrier coatings. In this study we applied thermoplastic long chain fatty acid cellulose esters onto paperboard using electrostatic powder coating to create barrier properties of interest. Electrostatic powder coating provides a water-free process to tackle moisture-induced quality issues and to provide an even coating layer. Cellulose octanoate and palmitate esters were produced in pilot scale. These were ground into fine particles using liquid nitrogen and applied onto paperboard sheets using an electrostatic powder gun. The loosely packed coatings were fixed and fused onto the paperboard by hot pressing. We characterized the coated sheets for coating thickness, contact angles with water, water absorption, grease resistance (KIT), and olive oil barrier. Two commercial polyethylene powders were used as references. Our results indicated that the long chain cellulose fatty acid ester coatings were thermoplastic and hydrophobic with contact angles above 100°. Water absorption was similar to the reference coatings. While grease resistance was lower than with the references, the cellulose ester coatings slowed down diffusion of olive oil through the paperboard. Cellulose octanoate ester with a lower melt viscosity already provided smooth coatings after the initial hot pressing step, while in most cases, the second post hot pressing step further improved the barrier properties.

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