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Evaluation of Print Mottle of Double Coated Paper by Octave Band Filtering Technique
- Source :
- BioResources, Vol 19, Iss 2, Pp 3095-3105 (2024)
- Publication Year :
- 2024
- Publisher :
- North Carolina State University, 2024.
-
Abstract
- The effects of the pre-coating color formulation, dwell time, and coat weights of pre- and top- coating layers on print mottle of double-coated paper were investigated using an octave band filtering image processing technique. To investigate the effect of pre-coating color formulations, six types of coating colors were used. Mottle index and coefficient of variance (COV) of double-coated paper increased as the size of pre-coating pigment particles decreased, which was attributed to the reduction in relative pore size of the pre-coating layer. Decreasing the dwell time decreased transfer time from the coating head to dryer of a Maiyoh coater. As the transfer time to dryer decreased, the mottle index and COV increased because of uneven distribution of latex within the coating layer. Pre-coat weight was found to have a greater impact on print mottle than the top-coat weight.
Details
- Language :
- English
- ISSN :
- 19302126
- Volume :
- 19
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- BioResources
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.905268a338ac4682898c8bbbbc3eaa25
- Document Type :
- article