Influence of pigment blends of different shapes and size distributions on coated paper properties

2011 ◽  
Vol 8 (5) ◽  
pp. 605-611 ◽  
Author(s):  
Nitin Kumar ◽  
Nishi Kant Bhardwaj ◽  
Swapan Kumar Chakrabarti
Keyword(s):  
Size Distributions ◽  
Coated Paper ◽  
Paper Properties ◽  
Different Shapes

Functional surfaces produced by foam coating

TAPPI Journal ◽  
2016 ◽  
Vol 15 (8) ◽  
pp. 515-521 ◽  
Author(s):  
EIJA KENTTÄ ◽  
HANNA KOSKELA ◽  
SARA PAUNONEN ◽  
KARITA KINNUNEN-RAUDASKOSKI ◽  
TUOMO HJELT
Keyword(s):  
Life Time ◽  
Silica Coating ◽  
Foaming Properties ◽  
Coated Paper ◽  
Paper Properties ◽  
Foaming Agent ◽  
Foaming Agents ◽  
Size Stability ◽  
Stability Measurement ◽  
Standard Paper

This paper reports experiments on silica coating formulations that are suitable for application as a thin pigment layer with foam coating technique on a paper web. To understand the foaming properties of nanosilica dispersions, the critical micelle concentration, foam half-life time, and foam bubble size stability were determined with three different foaming agents. The results indicate that the bubble stability measurement is a useful characterization method for foam coating purposes. Pilot foam coating trials were done and the effects of the chosen foaming agents were studied on the properties of the nanosilica-coated paper. The surface hydrophilicity of silica coated paper was related not only to silica pigment, but also to the chemical nature of the foaming agent. Standard paper properties were not affected by the thin silica coating.

Modelling coated paper properties: application of neural networks

1997 ◽  
Vol 28 (9) ◽  
pp. 865-870
Author(s):  
M. GORNIK ◽  
G. NOVAK ◽  
E. GOVEKAR
Keyword(s):  
Neural Networks ◽  
Coated Paper ◽  
Paper Properties

scholarly journals Influence of SBR latexes on coated paper properties.

1984 ◽  
Vol 38 (12) ◽  
pp. 1196-1201
Author(s):  
Akira Uchida
Keyword(s):  
Coated Paper ◽  
Paper Properties

Prediction of Handsheet Tensile Strength by Computational Simulation of Structure

TAPPI Journal ◽  
2010 ◽  
Vol 9 (1) ◽  
pp. 15-19
Author(s):  
RÉMI VINCENT ◽  
MARTINE RUEFF ◽  
CHRISTIAN VOILLOT
Keyword(s):  
Tensile Strength ◽  
Breaking Strength ◽  
Computational Simulation ◽  
Physical Property ◽  
Size Distributions ◽  
Fiber Morphology ◽  
Paper Properties ◽  
Texture Property ◽  
Paper Structure ◽  
Fiber Breaks

To better understand the influence of fiber morphology on paper properties, we developed a novel 3-D computational simulator of paper structure, which was validated through experimental work. This simulator creates virtual pieces of handsheets using the size distributions of the fibers as the main inputs. Once the structure is generated, physical properties can be assessed. The main principles of the simulation and the results for one global texture property, the apparent density, were presented in a previous paper. In this paper, we focus on the prediction of the tensile breaking strength, the most commonly used physical property for paper characterization. The model is based on the model developed by Shallhorn and Karnis, which was adapted to take into account the fiber morphological distributions. It was successfully applied in the absence of fiber breaks during the test and validated with the 10 pulps used in the first part of the study.

Research on Application of High Degree of Substitution Cationic Starch in Paper Coating

2011 ◽  
Vol 287-290 ◽  
pp. 2074-2077
Author(s):  
Quan Xiao Liu ◽  
Jin Li Li ◽  
Wen Cai Xu ◽  
Yu Bin Lv
Keyword(s):  
Degree Of Substitution ◽  
Cationic Starch ◽  
Paper Coating ◽  
Coated Paper ◽  
Paper Properties ◽  
Color Density ◽  
Image Density ◽  
Research On Application ◽  
High Degree ◽  
Better Than

Different degrees of high degree of substitution cationic starch (HCS) were prepared and applied in paper coating. Effects of HCS on coating properties and coated paper properties were investigated, and the comparison of effects of HCS and PDMDAAC was made. The results show that the best amount of HCS in coating formula is between 2% and 4%. When the amount of HCS is 4%, whiteness of coated paper was the highest. The color density was the highest when the amount of HCS is about 4% and the degree of substitution is 0.64. HCS with degree of substitution 0.849 is better than PDMDAAC in some respects, and the print image density achieved satisfactorily.

Comparative Effect of Hydrophilic and Lipophilic Nanosized Titanium Dioxide on the Properties of Coated Paper

2012 ◽  
Vol 441 ◽  
pp. 750-753 ◽  
Author(s):  
Yan Jun Tang ◽  
Man Chen ◽  
You Ming Li ◽  
Yu Zhao ◽  
Xiu Mei Zhang
Keyword(s):  
Titanium Dioxide ◽  
Optical Properties ◽  
Surface Properties ◽  
Comparative Effect ◽  
Paper Coating ◽  
Coated Paper ◽  
Surface Strength ◽  
Paper Properties ◽  
Nanosized Titanium Dioxide

In this paper, the effect of the charge of hydrophilic and lipophilic nanosized TiO2 on the optical properties and printability of coated paper was investigated. The parameters including brightness, opacity, surface strength and sizing degree were used to evaluate the optical properties and printability of coated paper. The effects of hydrophilic and lipophilic TiO2 on the properties of coated paper were discussed. It was shown that the optical properties and printability of coated paper increase persistently with the change of nanosized TiO2 charged from 5% to 15%. Once the charge of nanosized TiO2 was over 15%, the main properties of coated paper took on a downward tendency. The properties of coated paper were related to the surface properties of nanosized TiO2 samples. It was found that the lipophilicity of nanosized TiO2 sample played a more important role in the improvement of the coated paper properties, which was believed to be based on the fact that lipophilic nanosized TiO2 could be well compatible with the binders used in the paper coating.

The effect of the impingement air drying on print mottle and other coated paper properties

2004 ◽  
Vol 24 (17-18) ◽  
pp. 2527-2536 ◽  
Author(s):  
Pasi Rajala ◽  
Nenad Milosavljevic ◽  
Harri Kiiskinen ◽  
Melissa Hendrickson
Keyword(s):  
Coated Paper ◽  
Air Drying ◽  
Paper Properties

scholarly journals On the functional form of particle number size distributions: influence of particle source and meteorological variables

2018 ◽  
Vol 18 (7) ◽  
pp. 4831-4842 ◽  
Author(s):  
Katia Cugerone ◽  
Carlo De Michele ◽  
Antonio Ghezzi ◽  
Vorne Gianelle ◽  
Stefania Gilardoni
Keyword(s):  
Particle Number ◽  
Functional Form ◽  
Size Range ◽  
Winter Season ◽  
Size Distributions ◽  
Weather Variables ◽  
Different Shapes ◽  
Distribution Family ◽  
Combustion Processes ◽  
Johnson System

Abstract. Particle number size distributions (PNSDs) have been collected periodically in the urban area of Milan, Italy, during 2011 and 2012 in winter and summer months. Moreover, comparable PNSD measurements were carried out in the rural mountain site of Oga–San Colombano (2250 m a.s.l.), Italy, during February 2005 and August 2011. The aerosol data have been measured through the use of optical particle counters in the size range 0.3–25 µm, with a time resolution of 1 min. The comparison of the PNSDs collected in the two sites has been done in terms of total number concentration, showing higher numbers in Milan (often exceeding 103 cm−3 in winter season) compared to Oga–San Colombano (not greater than 2×102 cm−3), as expected. The skewness–kurtosis plane has been used in order to provide a synoptic view, and select the best distribution family describing the empirical PNSD pattern. The four-parameter Johnson system-bounded distribution (called Johnson SB or JSB) has been tested for this aim, due to its great flexibility and ability to assume different shapes. The PNSD pattern has been found to be generally invariant under site and season changes. Nevertheless, several PNSDs belonging to the Milan winter season (generally more than 30 %) clearly deviate from the standard empirical pattern. The seasonal increase in the concentration of primary aerosols due to combustion processes in winter and the influence of weather variables throughout the year, such as precipitation and wind speed, could be considered plausible explanations of PNSD dynamics.

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