scholarly journals Micro topography of paper surface. III. Relationship between surface roughness and liquid absorption of paper.

1988 ◽  
Vol 42 (9) ◽  
pp. 871-876
Author(s):  
Haruki Wakebe ◽  
Hiroshi Hara ◽  
Raysabro Oye
Keyword(s):  
Surface Roughness ◽  
Paper Surface ◽  
Liquid Absorption ◽  
Micro Topography

The influence of paper surface energy on multicolor offset print mottling

TAPPI Journal ◽  
2014 ◽  
Vol 13 (2) ◽  
pp. 55-64 ◽  
Author(s):  
JURAJ GIGAC ◽  
MIROSLAVA KASAJOVÁ ◽  
MONIKA STANKOVSKÁ
Keyword(s):  
Surface Roughness ◽  
Free Energy ◽  
Surface Energy ◽  
Surface Free Energy ◽  
Dynamic Process ◽  
Surface Wetting ◽  
Paper Surface ◽  
Liquid Absorption ◽  
Before And After ◽  
Surface Dynamic

An evaluation of a series of commercial uncoated, semimatte, and glossy coated woodfree papers for the multicolor sheet-fed offset press is presented. This study is aimed at better understanding of mutual influences of surface free energy, paper surface roughness, and fountain solution on print mottling occurring in full-scale printing conditions. Each paper has unique structure in terms of surface roughness, porosity, and surface energy that are the result of manufacturing technology. At the point of contact of liquid with paper, the surface dynamic process of liquid absorption by paper occurs, involving phenomena such as wetting, penetration, diffusion, and swelling. Mottling of colored surface printed by cyan, magenta, yellow, and black inks copied the surface roughness of coated paper. Mottling in the second, third, and fourth printing units showed deviation from mottling in the first printing unit, depending on surface free energy of paper and on the frequency of paper-surface wetting by fountain solution before and after printing.

Research on Surface Roughness and Micro-Topography of Nano-ZrO2 Plate in Two-Dimension Ultrasonic Grinding

2008 ◽  
Vol 53-54 ◽  
pp. 243-247 ◽  
Author(s):  
Bo Zhao ◽  
Ming Li Zhao ◽  
Guo Fu Gao
Keyword(s):  
Surface Roughness ◽  
Ultrasonic Vibration ◽  
Ceramic Materials ◽  
Ceramic Plate ◽  
Two Dimensional ◽  
Machined Surface ◽  
Ultrasonic Grinding ◽  
High Efficient ◽  
Micro Topography ◽  
Processing Difficulty

The influence of ultrasonic vibration on the surface roughness and micro-topography of ceramics plate is discussed in this paper. Grinding assisted by two-dimensional ultrasonic vibration is developed to deal with the processing difficulty of ceramic materials due to its hard-brittle property. The experimental results show that the surface roughness value obtained in two-dimensional ultrasonic grinding nano-ZrO2 ceramic plate specimen is obviously smaller than that in common grinding, and the scratched grooves on the machined surface in ultrasonic grinding is wider and relatively smoother than that in common grinding. Consequently, it proves that the two-dimensional ultrasonic machining is a feasible, high-efficient machining method for hard-brittle materials.

Investigation of paper surface roughness by polarization methods

1993 ◽  
Author(s):  
E. A. Barsukov ◽  
L. Y. Melnichenko ◽  
Vasiliy V. Prorok ◽  
S. F. Traiduk ◽  
Igor A. Shaikevich
Keyword(s):  
Surface Roughness ◽  
Paper Surface

Micro topography of paper surface. IV. Influence of load on water transfer on the paper.

1988 ◽  
Vol 42 (10) ◽  
pp. 963-972
Author(s):  
Haruki Wakebe ◽  
Hiroshi Hara ◽  
Raysabro Oye
Keyword(s):  
Water Transfer ◽  
Paper Surface ◽  
Micro Topography

Wet pressing and product quality: Review of previous pilot machine trials

TAPPI Journal ◽  
2020 ◽  
Vol 19 (7) ◽  
pp. 369-374
Author(s):  
J. DAVID MCDONALD
Keyword(s):  
Surface Roughness ◽  
Product Quality ◽  
Surface Quality ◽  
Average Density ◽  
Paper Surface ◽  
Quality Review ◽  
Wet Pressing ◽  
End Use ◽  
The Web

The purpose of wet pressing is to remove water by mechanical means to consolidate the web and minimize the energy expended in the dryer section. In this process, paper is compacted and densified to degrees that impact end-use performance. Average density is increased by pressing, which has implications for grades where stiffness is important. The z-direction density gradients can affect printing and converting. Lastly, pressing affects surface quality of paper and its response to printing. Broadly speaking, the final press nip dominates the paper surface roughness and the early press nips affect printing performance.

A Surface Roughness Study for Machining of Udimet500 Superalloy, through Statistical Analysis of Influential Parameters

2012 ◽  
Vol 445 ◽  
pp. 923-928
Author(s):  
Es Ghadiri Zahrani ◽  
H. Soleimanimehr ◽  
Amir Heidari Shahmaleki ◽  
D. Zamani
Keyword(s):  
Surface Roughness ◽  
High Surface ◽  
Cutting Speed ◽  
Depth Of Cut ◽  
Manufacturing Companies ◽  
Paper Surface ◽  
Nickel Based Superalloy ◽  
Manufacturing Methods ◽  
Influential Parameters ◽  
Cutting Speeds

Superalloy is an alloy that has been developed to be used in processes with high thermal and mechanical stresses and also preserving high surface stabilities. Because of the increase in temperature and wearing of tool tip (even in low cutting speeds), machining of these materials has not developed considerably. Increase in demand for machining of these materials equally increases the need for investigating their manufacturing methods. For this reason, optimal machining of superalloys is very important and is under great investigations. The most important parameter for manufacturing companies is surface roughness. In the present paper, surface roughness of Udimet500 superalloy which is a nickel-based superalloy is investigated. Based on regression analysis, the most influential parameters to surface roughness are obtained and a relation for the roughness with respect to depth of cut, cutting speed, feed rate and lubricant type (CO2, Z1 or dry) is derived.

Effects of Surface Roughness Microtopography on Formability in Cold Rolled Steel Sheet

2013 ◽  
Vol 690-693 ◽  
pp. 2232-2235
Author(s):  
Jing Tang
Keyword(s):  
Surface Roughness ◽  
Deformation Behavior ◽  
Rolled Sheet ◽  
Rolled Steel ◽  
Shot Blasting ◽  
Uniform Dispersion ◽  
Plastic Deformation Behavior ◽  
Before And After ◽  
Cold Rolled ◽  
Micro Topography

The surface roughness morphology of cold rolled sheet treated with three coarsen processes, including shot blasting texturing, electro-discharge texturing and laser texturing, was examined and analyzed before and after stamping. The influence of the micro-topography on the plastic deformation behavior during forming was then discussed. The results revealed that the sheet with uniform dispersion micro-pit, large concave valley and smooth convex hull exhibits a good forming performance.

scholarly journals Microtopography of paper surface. II. Surface roughness of printing paper.

1986 ◽  
Vol 40 (3) ◽  
pp. 275-283
Author(s):  
Haruki Wakebe ◽  
Hiroshi Hara ◽  
Raysabro Oye
Keyword(s):  
Surface Roughness ◽  
Paper Surface ◽  
Printing Paper
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