Research on the Coating Surface Microstructure of Coated Paper Related to Binder Migration

2014 ◽  
Vol 881-883 ◽  
pp. 1439-1442
Author(s):  
Ying Li ◽  
Wen Juan Gu ◽  
Bang Gui He
Keyword(s):  
Visual Analysis ◽  
Coating Layer ◽  
Mercury Porosimetry ◽  
Surface Microstructure ◽  
Coated Paper ◽  
Force Microscopy ◽  
Coating Surface ◽  
Atomic Force ◽  
Consolidation Phase ◽  
Coating Color

The surface topography and properties of coating layer have an important influence on penetration and distribution of the print ink. In this research, the main objective was to investigate the effect of binder migration on the coating surface microstructure. The surface microstructure was explored in the method of numerical and visual analysis using mercury porosimetry measurement, scanning electron microscopy (SEM) and atomic force microscopy (AFM). The findings indicated that the binder migration on the coating surface affected the pore size, depth and distribution of the coated paper surface. The little binder migration in the consolidation phase of coating color made a contribution to the forming of the coating layer, which made the coating surface more smother to printing performance.

A Study of Coating Surface Microstructure and Characteristics of Coated Paper Related to Binder

2013 ◽  
Vol 650 ◽  
pp. 292-297 ◽  
Author(s):  
Ying Li ◽  
Wen Juan Gu ◽  
Bei Hai He
Keyword(s):  
Pore Size ◽  
Surface Topography ◽  
Visual Analysis ◽  
Mercury Porosimetry ◽  
Surface Characteristics ◽  
Surface Microstructure ◽  
Coated Paper ◽  
Paper Surface ◽  
Force Microscopy ◽  
Coating Surface

The surface topography and properties of coating layer have an important influence on penetration and distribution of the print ink. In this research, the main objective was to investigate the effect of binder on the coating surface topography and characteristics. The surface microstructure was explored in the method of numerical and visual analysis using mercury porosimetry measurment and atomic force microscopy (AFM). The findings indicated that the binder content on the coating surface affected the pore size, depth and distribution of the coated paper surface. The conclusions were drawn that more amount of binder on the coating surface could contribute to improve the coating surface topography and the formation of even pore size and distribution, which was good to the paper surface characteristics and resulted in low roughness, high paper gloss, low ink absorption and high paper surface efficiency.

Study on the Effect of Calender on Coating surface structure and Printability of Coated Paper

2014 ◽  
Vol 904 ◽  
pp. 46-49 ◽  
Author(s):  
Jian Guo Li ◽  
Ying Li
Keyword(s):  
Surface Structure ◽  
Visual Analysis ◽  
Coating Layer ◽  
Mercury Porosimetry ◽  
Lower Amount ◽  
Print Quality ◽  
Coated Paper ◽  
Paper Surface ◽  
Coating Surface ◽  
Printing Quality

The structure of the coating layer has a strong influence on the optical and physical properties of paper as well as on the print quality. Ink is transferred and sets onto the paper surface in the printing process, which affect printing quality and usage of ink. The objective of this experiment was to investigate the influence of calender on coating surface structure and Printability. The surface structure was explored in the method of numerical and visual analysis using mercury porosimetry measurement and scanning electron microscopy (SEM). The findings indicated that the calender treatment affected the pore size, depth and distribution of the coated paper surface. It could be concluded that Calender could increase the smoothness, gloss and paper surface efficiency of coated paper, which resulted in lower amount of ink usage, lower amount of ink absorption and higher print density.

Study on the Effect of Drying on Binder Z- Directional Distribution in Coated Paper

2011 ◽  
Vol 233-235 ◽  
pp. 1608-1613
Author(s):  
Ying Li ◽  
Bei Hai He
Keyword(s):  
Laser Scanning ◽  
Visual Analysis ◽  
Coating Layer ◽  
Coated Paper ◽  
Laser Scanning Confocal Microscope ◽  
Directional Distribution ◽  
Force Microscopy ◽  
Atomic Force ◽  
Base Paper ◽  
Drying Condition

The main objective of this study was to investigate the effect of drying condition on the binder distribution and characterize the binder migration in the method of numerical and visual analysis by Scanning Electrical Microscopy (SEM), Atomic Force Microscopy (AFM), and Laser Scanning Confocal Microscope (LSCM). In this study, Rhodamine B was used to stain the binder and as the probe to characterize z-directional distribution of the binder using LSCM. The results implied that it was reliable and effective method using LSCM to characterize the z- directional distribution of binder and analyze the influence of dry condition on binder migration. It could be concluded that the dry temperature played an important effect on binder distribution in coated paper and high dry temperature accelerated binder migration to the coating surface, however low drying temperature made binder migrate towards the interior of base paper. Moderate drying is good to binder distribution and coating layer forming.

Influence of Coating Binder Migration on Coated Paper Printing Properties

2013 ◽  
Vol 791-793 ◽  
pp. 286-289
Author(s):  
Zhao Hui Zhen ◽  
Zheng Shun Wang
Keyword(s):  
Cross Section ◽  
Coating Layer ◽  
Coated Paper ◽  
N Value ◽  
Coating Surface ◽  
Binder Concentration ◽  
Coating Color ◽  
Relationship Of ◽  
The Relationship

The coating binder migration and concentration in z-direction of coating layer especially in coating surface influence the coated paper printing properties. The results indicated that with the increase of coating surface binder migration, the coated paper opacity decreases, and the K&N value decreases. The relationship of K&N value and binder concentration in surface of coating layer was linear, which indicated that compared to binder dosage concentration in coating color, the K&N value and coating surface binder concentration has higher correlation. The more uniform the binder distribution in cross section of coating layer, the greater the IGT.

Surface microstructure of a Kevlar aramid fibre studied by direct atomic force microscopy

Polymer ◽  
1997 ◽  
Vol 38 (9) ◽  
pp. 2245-2249 ◽  
Author(s):  
Serge Rebouillat ◽  
Jean-Baptiste Donnet ◽  
Tong Kuan Wang
Keyword(s):  
Atomic Force Microscopy ◽  
Aramid Fibre ◽  
Surface Microstructure ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Investigation of the bulk and surface microstructure of bitumen by atomic force microscopy

2018 ◽  
Vol 177 ◽  
pp. 158-169 ◽  
Author(s):  
Johan Blom ◽  
Hilde Soenen ◽  
Antigoni Katsiki ◽  
Niko Van den Brande ◽  
Hubert Rahier ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Surface Microstructure ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Surface microstructure of Zr41.25Ti13.75Cu12.5Ni10.0Be22.5, a bulk metallic glass

1996 ◽  
Vol 11 (6) ◽  
pp. 1494-1499 ◽  
Author(s):  
M.A. LaMadrid ◽  
S.D. O'Connor ◽  
A. Peker ◽  
W.L. Johnson ◽  
J.D. Baldeschwieler
Keyword(s):  
Atomic Force Microscopy ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Surface Roughening ◽  
Surface Microstructure ◽  
Induction Melting ◽  
Force Microscopy ◽  
Atomic Force

The surface of Zr41.25Ti13.75Cu12.5Ni10.0Be22.5, a bulk metallic glass prepared by RF induction melting, has been imaged using atomic force microscopy. The untreated surfaces were very smooth; features were no higher than 3 nm over a 10 × 10 μm region, comparable to many polished surfaces. Two types of microstructure were also observed; periodic striations forming either a striped or a checkered structure were present, with wavelengths between 1 and 2 μm, and amplitude of approximately 2 nm; in other cases, “cracked mud”-like patterns were observed. These microstructures could be related to strain-induced surface roughening; preliminary calculations are presented that are consistent with this hypothesis.

Coating Binder Migration and Affected Parameters: Influence of Coating Process

2013 ◽  
Vol 791-793 ◽  
pp. 187-191
Author(s):  
Zhao Hui Zhen ◽  
Zheng Shun Wang
Keyword(s):  
Cross Section ◽  
Dwell Time ◽  
Coating Layer ◽  
Drying Rate ◽  
Coating Process ◽  
Coated Paper ◽  
Drying Temperature ◽  
Coating Surface ◽  
Binder Concentration ◽  
Coating Weight

The coating binder in cross-section of coating layer will be migrated, the binder concentration will be different in z-direction of coating layer, which affect some properties of coated paper. The paper studied the effects of coating progress on binder migration and affected factors. The z-direction distribution of the coating binder which was tagged with Br in coating layer and its concentration in coating surface were examined quantitatively by using SEM-EDXA and ESCA analysis. During coating process the drying rate, dwell time from coating device to dryer and coating weight affect the binder migration. The mechanism of binder migration was proposed. The results indicated that the degree of binder migration is directly proportional to the drying temperature and coating weight, but reduces with extending the dwell time.

Analysis of Coating Pore Structure and its Effect on Printability of Low Gloss Coated Paper

2011 ◽  
Vol 236-238 ◽  
pp. 1178-1182
Author(s):  
Yan Xin Liu ◽  
Yu Long Wang ◽  
Shen Tao Qin ◽  
Fei Fei Liu
Keyword(s):  
Pore Structure ◽  
Pore Size ◽  
Pore Volume ◽  
Coating Layer ◽  
Layer Structure ◽  
Capillary Absorption ◽  
Coated Paper ◽  
Base Paper ◽  
Small Pore ◽  
Coating Color

Coating pore structure of low gloss coated paper based on different pigment blends was analyzed using mercury intrusion method in this paper. The results show that pore size of coating layer structure of low gloss coated paper ranges from 20nm-500nm, and the range from 500nm-5000nm is mainly from base paper and interactions between coating color and base paper. Printability of coated paper can be well related with coating pore structure. Print gloss is strongly influenced by pore size and pore volume. Large pore diameters and small pore volume of coating layer structure can improve print gloss. Ink density increases with the increasing of pore diameter while the pore volume is kept constant. The increasing of pore volume of coat layer structure will improve capillary absorption and then improve ink absorption. The control of coating pore structure is very important for producing low gloss coated paper.

Coating Binder Migration and its Affected Parameters: Influence of Coating Color on Binder Migration

2013 ◽  
Vol 746 ◽  
pp. 110-113
Author(s):  
Zhao Hui Zhen ◽  
Zheng Shun Wang
Keyword(s):  
Coating Layer ◽  
Solid Content ◽  
Layer Surface ◽  
Coating Surface ◽  
Coating Color

The Paper studied the effects of coating color on binder migration and affected factors. The z-direction distribution of the coating binder which was tagged with Br in coating layer and its concentration in coating surface were examined quantitatively by using SEM-EDXA and ESCA analysis. In coating colors the coating solid content, the binder dosage and type affects the binder migration. The mechanism of coating color on binder migration was also studied. The results indicated that the degree of binder migration was increased with reduced the coating solid content or added more dosage of coating binder. In low dying temperature the SB-latex was prone to migrated to coating layer surface than starch, the opposite is true in high dying temperature.

Sign in / Sign up

Export Citation Format

Share Document