Please use this identifier to cite or link to this item:
Title: Micro-/Nanofibrillated Cellulose-Based Coating Formulations: A Solution for Improving Paper Printing Quality
Authors: Sharma, Mohit 
Aguado, Roberto 
Murtinho, Dina 
Valente, Artur J. M. 
Ferreira, Paulo J. T. 
Keywords: betaine hydrochloride; micro-/nanofibrillated cellulose; starch betainate; pluronics; printing quality
Issue Date: 2022
Publisher: MDPI
Project: info:eu-repo/grantAgreement/FCT/UID/QUI/00313/ 2020 
info:eu-repo/grantAgreement/POCI-01-0247-FEDER-021874/ inpactus - Produtos e Tecnologias Inovadores a partir do Eucalipto 
Serial title, monograph or event: Nanomaterials
Volume: 12
Issue: 16
Abstract: The use of micro-/nanofibrillated celluloses (M/NFCs) is often considered for the enhancement of paper properties, while it is still challenging to use them in lower weight gain coatings. This work explores how they might be used on the paper surface to improve the printing quality. In this regard, M/NFCs were produced using different pre-treatment methods, including mechanical (m-MFC), enzymatic (e-MFC), TEMPO-mediated oxidation (t-NFC) and cationization (c-NFC), and uniform coating formulations were developed through the cooking of starch and M/NFCs simultaneously. The formulations, at 6–8% of total solid concentration, were applied to the paper surface by roll coating, resulting in a dry coating weight of 1.5 to 3 g/m2. Besides M/NFCs, other components such as starch betainate (a cationic starch ester; SB), Pluronics® (a triblock co-polymer), precipitated calcium carbonate (PCC) and betaine hydrochloride (BetHCl) were also used in the M/NFC-based coating formulations to observe their combined influence on the printing quality. The presence of M/NFCs improved the paper printing quality, which was further enhanced by the increase in cationic charge density due to the presence of BetHCl/SB, and also by Pluronics®. The cationic charge of c-NFC was also found to be effective for improving the gamut area and optical density of coated papers, whereas whiteness was often reduced due to the quenching of the brightening agent. BetHCl, on the other hand, improved the printing quality of the coated papers, even though it was more effective when combined with M/NFCs, PCC and Pluronics®, and also helped to retain paper whiteness.
ISSN: 2079-4991
DOI: 10.3390/nano12162853
Rights: openAccess
Appears in Collections:I&D CIEPQPF - Artigos em Revistas Internacionais
FCTUC Eng.Química - Artigos em Revistas Internacionais
FCTUC Química - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
nanomaterials-1866128-proofreading.pdf477.13 kBAdobe PDFView/Open
Show full item record


checked on Nov 17, 2022

Page view(s)

checked on Sep 18, 2023


checked on Sep 18, 2023

Google ScholarTM




This item is licensed under a Creative Commons License Creative Commons