Describing the Influence of Ink Type on Ink Penetration and Distribution

2014 ◽  
Vol 881-883 ◽  
pp. 1451-1454
Author(s):  
Ying Li ◽  
Wen Juan Gu ◽  
Bang Gui He
Keyword(s):  
Penetration Depth ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Drying Method ◽  
Offset Printing ◽  
Laser Scanning Confocal Microscope ◽  
Paper Surface ◽  
Printing Quality ◽  
Distribution Uniformity ◽  
Printing Ink

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 ink type on ink absorption and characterize the penetration depth through quantitative analysis by Laser Scanning Confocal Microscope (LSCM). Fluorescent ink was used to observe and characterize ink penetration by LSCM. Three-dimensional images of ink pigment penetration were obtained by reconstructing all XY plane images. It could be concluded Common offset printing ink compared with UV offset printing resulted in deeper ink penetration ,uneven ink distribution and lower print density. Because the composition and drying method of UV offset printing ink and common offset printing ink were significant different, penetration depth and distribution uniformity of these two types of offset printing ink in coated paper were distinct.

Investigation into the Effect of Coating Thickness on Ink Penetration by LSCM

2010 ◽  
Vol 174 ◽  
pp. 350-353
Author(s):  
Ying Li ◽  
Bei Hai He
Keyword(s):  
Quantitative Analysis ◽  
Penetration Depth ◽  
Coating Thickness ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Accurate Method ◽  
Print Quality ◽  
Laser Scanning Confocal Microscope ◽  
Measurement Result ◽  
Distribution Uniformity

Cutting is a relative accurate method in the literatures about ink penetration measurement at present. But cutting may bring some damages to paper, which reduces reliability of measurement result. The objective of this experiment was to investigate the influence of coating thickness on ink penetration and characterize the penetration depth through quantitative analysis by Laser Scanning Confocal Microscope (LSCM). Fluorescent ink was used to observe and characterize ink penetration by LSCM. Three-dimensional images of ink pigment penetration were obtained by reconstructing all XY plane images. The results implied that it was reliable and effective method using LSCM to characterize the ink penetration depth and distribution uniformity. It could be concluded that the print quality could be adjusted and improved by increasing the coating thickness.

Characterizing the Influence of Drying on Ink Absorption Using Reconstructed Images by Laser Scanning Confocal Microscopy

2014 ◽  
Vol 904 ◽  
pp. 59-62 ◽  
Author(s):  
Jian Guo Li ◽  
Ying Li
Keyword(s):  
Confocal Microscopy ◽  
Penetration Depth ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Laser Scanning Confocal Microscopy ◽  
Coated Paper ◽  
Drying Temperature ◽  
Scanning Confocal Microscopy ◽  
Distribution Uniformity ◽  
The Relationship

The objective of this experiment was to investigate the relationship between drying and ink absorption using laser scanning confocal microscopy (LSCM). Fluorescent ink was used to observe and characterize ink penetration and distribution by LSCM. Three-dimensional images of ink penetration were obtained by reconstructing all XY plane images. Reconstructed images were used to describe ink absorption in coated paper by LSCM. The results implied that it was reliable and effective using LSCM to characterize the ink penetration depth and distribution uniformity. This method could not damage the specimen and did not need fluorescent dye to stain the specimen, which decreased the errors by hand operation. The results indicated that drying temperature affected ink penetration depth and distribution evenness. Higher and lower drying temperature could not contribute to ink absorption uniformity. With the drying temperature increasing, ink penetration depth in coated paper increased.

The Use of Data Explorer as a 3-D Reconstruction Tool for Microscopy Data Sets

1997 ◽  
Vol 3 (S2) ◽  
pp. 1131-1132
Author(s):  
Jansma P.L ◽  
M.A. Landis ◽  
L.C. Hansen ◽  
N.C. Merchant ◽  
N.J. Vickers ◽  
...  
Keyword(s):  
Volume Rendering ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Building Blocks ◽  
General Purpose ◽  
Data Sets ◽  
Laser Scanning Confocal Microscope ◽  
Use Of Data ◽  
Using Data ◽  
Microscopy Data

We are using Data Explorer (DX), a general-purpose, interactive visualization program developed by IBM, to perform three-dimensional reconstructions of neural structures from microscopic or optical sections. We use the program on a Silicon Graphics workstation; it also can run on Sun, IBM RS/6000, and Hewlett Packard workstations. DX comprises modular building blocks that the user assembles into data-flow networks for specific uses. Many modules come with the program, but others, written by users (including ourselves), are continually being added and are available at the DX ftp site, http://www.tc.cornell.edu/DXhttp://www.nice.org.uk/page.aspx?o=43210.Initally, our efforts were aimed at developing methods for isosurface- and volume-rendering of structures visible in three-dimensional stacks of optical sections of insect brains gathered on our Bio-Rad MRC-600 laser scanning confocal microscope. We also wanted to be able to merge two 3-D data sets (collected on two different photomultiplier channels) and to display them at various angles of view.

Investigation into the Influence of Coating Speed on Ink Penetration

2013 ◽  
Vol 699 ◽  
pp. 432-435
Author(s):  
Ying Li ◽  
Wen Juan Gu ◽  
Bang Gui He
Keyword(s):  
Quantitative Analysis ◽  
Penetration Depth ◽  
Surface Properties ◽  
Laser Scanning ◽  
Confocal Microscope ◽  
Coated Paper ◽  
Laser Scanning Confocal Microscope

The penetration of ink into the paper affects the final appearance of printing and the amount of ink usage. The main aim of this experiment was to investigate the efficiency of coating speed on surface properties and ink penetration and to characterize the penetration depth through quantitative analysis by laser scanning confocal microscope (LSCM). The results indicated that the surface properties of coated paper could be adjusted and improved by increasing the coating speed. With the increasing of coating speed, ink penetration depth declined and ink penetration uniformity increased. It could be concluded that the coated paper with high coating speed compared with low coating speed resulted in lower ink usage and better printability on the condition of same print density.

Research on the Influence of Printing Pressure and Speed on Print Quality of Coated Paper

2013 ◽  
Vol 663 ◽  
pp. 286-290
Author(s):  
Ying Li ◽  
Wen Juan Gu ◽  
Bang Gui He
Keyword(s):  
Quantitative Analysis ◽  
Layer Thickness ◽  
Laser Scanning ◽  
Confocal Microscope ◽  
Print Quality ◽  
Coated Paper ◽  
Laser Scanning Confocal Microscope ◽  
Paper Surface ◽  
Printing Speed

What happens in the paper surface about ink absorption is of great important for appearance of final printing. The aim of this experiment was to investigate the influence of printing pressure and printing speed on ink layer thickness transferred onto coated paper through quantitative analysis by laser scanning confocal microscope (LSCM). Meanwhile, the influence of printing pressure and printing speed on print density and print gloss were obtained. The results implied that higher printing pressure resulted in higher ink layer thickness, print density and print gloss when printing pressure is less than 700N, but higher printing speed resulted in lower ink layer thickness, print density and print gloss when printing pressure is constant. It could be concluded that the coated paper with high printing speed compared with low printing speed resulted in lower ink absorption, lower print density, lower print gloss and worse printability on the condition of same printing pressure.

scholarly journals Erosion Behavior of a Cu-Ti3AlC2 Cathode by Multi-Electric Arc

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2947 ◽  
Author(s):  
Xiaochen Huang ◽  
Yi Feng ◽  
Liang Li ◽  
Zongqun Li
Keyword(s):  
Electron Microscope ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Electric Arc ◽  
Raman Spectrometry ◽  
Cross Sectional ◽  
Laser Scanning Confocal Microscope ◽  
X Ray ◽  
Arc Erosion ◽  
Scanning Electron

A Cu-Ti3AlC2 cathode was eroded by arc discharging at 10 kV. The cross-sectional and horizontal morphologies of the eroded surface were recorded by a field emission scanning electron microscope (FE-SEM). The energy dispersive X-ray spectroscopy (EDS) and Raman spectrometry were carried out to analyze the compositions. The color-eroded surface was obtained by a three-dimensional laser scanning confocal microscope (3D LSCM). After 100 times of arc erosion, the Cu-Ti3AlC2 melted and resolidified. An eroded layer about 10 μm thick was formed, covered with pits, protrusions, and pores. The breakdown current was kept between 37 to 43 A. Under the action of a high temperature arc, Cu-Ti3AlC2 was oxidized to CuO and TiO2, accompanying the evaporation of the Al element.

Relationship between Binder Content and Ink Absorption of Coated Paper

2013 ◽  
Vol 650 ◽  
pp. 206-210
Author(s):  
Ying Li ◽  
Wen Juan Gu ◽  
Bei Hai He
Keyword(s):  
Surface Structure ◽  
Laser Scanning ◽  
Coating Layer ◽  
Binder Content ◽  
The Other ◽  
Coated Paper ◽  
Laser Scanning Confocal Microscope ◽  
Printing Quality ◽  
Penetration Behavior ◽  
The Relationship

The ink penetration behavior depends on the coating surface structure and surface properties of the coating layer in the papermaking process, which include coating recipes and coating conditions, etc. The objective of this experiment was to investigate the relationship between binder content and ink absorption using laser scanning confocal microscope (LSCM). Fluorescent ink was used to observe and characterize ink penetration and distribution in coated paper by LSCM. The results indicated that higher binder content could result in higher amount ink absorption. With the increasing of binder content, ink penetration depth in coated paper increased. Sample G2 with 20 parts binder produced the most unevenness ink distribution. It could be concluded that the coated paper with 25 parts binder compared with the other samples resulted in higher ink usage and better printing quality.

scholarly journals Freeform 3D printing of vascularized tissues: Challenges and strategies

2021 ◽  
Vol 12 ◽  
pp. 204173142110572
Author(s):  
Hyun Lee ◽  
Tae-Sik Jang ◽  
Ginam Han ◽  
Hae-Won Kim ◽  
Hyun-Do Jung
Keyword(s):  
3D Printing ◽  
Three Dimensional ◽  
Vascular Networks ◽  
3D Objects ◽  
Advantages And Disadvantages ◽  
Printing Quality ◽  
And Performance ◽  
Material Information ◽  
Printing Ink ◽  
Selection Of

In recent years, freeform three-dimensional (3D) printing has led to significant advances in the fabrication of artificial tissues with vascularized structures. This technique utilizes a supporting matrix that holds the extruded printing ink and ensures shape maintenance of the printed 3D constructs within the prescribed spatial precision. Since the printing nozzle can be translated omnidirectionally within the supporting matrix, freeform 3D printing is potentially applicable for the fabrication of complex 3D objects, incorporating curved, and irregular shaped vascular networks. To optimize freeform 3D printing quality and performance, the rheological properties of the printing ink and supporting matrix, and the material matching between them are of paramount importance. In this review, we shall compare conventional 3D printing and freeform 3D printing technologies for the fabrication of vascular constructs, and critically discuss their working principles and their advantages and disadvantages. We also provide the detailed material information of emerging printing inks and supporting matrices in recent freeform 3D printing studies. The accompanying challenges are further discussed, aiming to guide freeform 3D printing by the effective design and selection of the most appropriate materials/processes for the development of full-scale functional vascularized artificial tissues.

Analysis of Imapct of Plate Cylinder Deformation on the Graphic Quality

2011 ◽  
Vol 215 ◽  
pp. 332-335
Author(s):  
Jun Ping Yang ◽  
Jun Zhong Guo ◽  
X. Wang
Keyword(s):  
Three Dimensional ◽  
Radial Deformation ◽  
Image Transfer ◽  
Offset Printing ◽  
Analysis Software ◽  
Core Component ◽  
Element Analysis ◽  
The Core ◽  
Printing Quality ◽  
Important Basis

Plate cylinder is the core component of the offset printing unit to complete the image transfer. The plate cylinder’s deformation will occur under pressure, resulting in the image’s deformation on the plate and the low printing quality. In this article, the three-dimensional digital model of plate, packing and cylinder are established by using solidworks software, they are assembled as a whole, the whole is imported into ANSYS finite element analysis software. The shaft of both sides of the cylinder are fixed, and the contact relations between plate, packing and cylinder body are defined, the pressure are load on the area with 5mm width on the surface of the plate cylinder. After solving, the flexural deformation of plate, packing and cylinder are obtained, through analyzing the axial and radial deformation of the plate, the graphic’s elongation which transferred from plate to blanket are received, consequently, an important basis of researching the image expansion will be provided.

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