The Influence of Flame, Corona and Atmospheric Plasma Treatments on Surface Properties and Digital Print Quality of Extrusion Coated Paper

2010 ◽  
Vol 24 (3) ◽  
pp. 471-492 ◽  
Author(s):  
Mikko Tuominen ◽  
Johanna Lahti ◽  
Juho Lavonen ◽  
Tapani Penttinen ◽  
Jari P. Räsänen ◽  
...  
Keyword(s):  
Surface Properties ◽  
Atmospheric Plasma ◽  
Print Quality ◽  
Coated Paper ◽  
Plasma Treatments ◽  
Digital Print

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 Effect of Blending Ratio of Amphoteric and Anionic Latex on Print Quality of Coated Paper.

2002 ◽  
Vol 56 (4) ◽  
pp. 543-548
Author(s):  
Yong-Kyu Lee ◽  
Kyu-Jae Park ◽  
Shigenori Kuga
Keyword(s):  
Print Quality ◽  
Coated Paper

scholarly journals Influence of Printing Substrate on Quality of Line and Text Reproduction in Flexography

2021 ◽  
Vol 11 (17) ◽  
pp. 7827
Author(s):  
Dean Valdec ◽  
Krunoslav Hajdek ◽  
Igor Majnarić ◽  
Darijo Čerepinko
Keyword(s):  
Quality Parameters ◽  
Print Quality ◽  
Scientific Contribution ◽  
Coated Paper ◽  
Test Form ◽  
Oriented Polypropylene ◽  
Analysis Of Results ◽  
Uncoated Paper ◽  
Surface Spread

This study characterizes and compares the parameters of the quality reproduction of fine elements in flexography on coated and uncoated paper as well as on OPP film (oriented polypropylene). A monochrome test form was created and printed using cyan UV ink. The analysis of results confirms the importance of interaction between the printing substrate and ink; it also indicates identical line and text deformations on the print. Quality reproduction on coated paper is higher in relation to OPP film for all the research parameters. The ink penetrates significantly more and with more irregularity into the pores and throats of the uncoated paper, which results in less homogeneous elements, and in such way that it loses its original shape. In coated paper and OPP film, the ink spreads more on the substrate area which gives it a significantly more homogeneous shape. However, due to the surface spread of the ink, the biggest changes in the size of fine elements are noticeable in the OPP film. The scientific contribution of this paper is based on the comparison of print quality parameters of fine elements, which can contribute to the optimization of the production process and quality of the final graphical product.

scholarly journals Correction to: Dielectric and surface properties of wood modified with NaCl aqueous solutions and treated with FE-DBD atmospheric plasma

2021 ◽  
Author(s):  
Jure Žigon ◽  
Marko Petrič ◽  
Sebastian Dahle
Keyword(s):  
Aqueous Solutions ◽  
Surface Properties ◽  
Atmospheric Plasma

A correction to this paper has been published: https://doi.org/10.1007/s00107-021-01724-z

scholarly journals A Comprehensive Investigation on 3D Printing of Polyamide 11 and Thermoplastic Polyurethane via Multi Jet Fusion

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2139
Author(s):  
Wei Shian Tey ◽  
Chao Cai ◽  
Kun Zhou
Keyword(s):  
Tensile Strength ◽  
Flexural Strength ◽  
Wear Rate ◽  
Mechanical Performance ◽  
Thermoplastic Polyurethane ◽  
Print Quality ◽  
Polyamide 11 ◽  
Powder Bed

Multi Jet Fusion (MJF) is a recently developed polymeric powder bed fusion (PBF) additive manufacturing technique that has received considerable attention in the industrial and scientific community due to its ability to fabricate functional and complex polymeric parts efficiently. In this work, a systematic characterization of the physicochemical properties of MJF-certified polyamide 11 (PA11) and thermoplastic polyurethane (TPU) powder was conducted. The mechanical performance and print quality of the specimens printed using both powders were then evaluated. Both PA11 and TPU powders showed irregular morphology with sharp features and had broad particle size distribution, but such features did not impair their printability significantly. According to the DSC scans, the PA11 specimen exhibited two endothermic peaks, while the TPU specimen exhibited a broad endothermic peak (116–150 °C). The PA11 specimens possessed the highest tensile strength in the Z orientation, as opposed to the TPU specimens which possessed the lowest tensile strength along the same orientation. The flexural properties of the PA11 and TPU specimens displayed a similar anisotropy where the flexural strength was highest in the Z orientation and lowest in the X orientation. The porosity values of both the PA11 and the TPU specimens were observed to be the lowest in the Z orientation and highest in the X orientation, which was the opposite of the trend observed for the flexural strength of the specimens. The PA11 specimen possessed a low coefficient of friction (COF) of 0.13 and wear rate of 8.68 × 10−5 mm3/Nm as compared to the TPU specimen, which had a COF of 0.55 and wear rate of 0.012 mm3/Nm. The PA11 specimens generally had lower roughness values on their surfaces (Ra < 25 μm), while the TPU specimens had much rougher surfaces (Ra > 40 μm). This investigation aims to uncover and explain phenomena that are unique to the MJF process of PA11 and TPU while also serving as a benchmark against similar polymeric parts printed using other PBF processes.

scholarly journals Washing treatment impact on print quality of screen printed knitted fabrics

2016 ◽  
Vol 21 (3) ◽  
pp. 817-826
Author(s):  
Mladen Stančić ◽  
Branka Ružičić ◽  
Nemanja Kašiković ◽  
Dragana Grujić ◽  
Dragoljub Novaković ◽  
...  
Keyword(s):  
Print Quality ◽  
Knitted Fabrics ◽  
Screen Printed

scholarly journals Erratum

1995 ◽  
Vol 15 (4) ◽  
pp. 719-719
Keyword(s):  
Magnetic Resonance Imaging ◽  
Blood Flow ◽  
Electrical Impedance ◽  
Neonatal Rat ◽  
Print Quality ◽  
Resonance Imaging ◽  
Excitotoxic Injury ◽  
Cereb Blood Flow ◽  
Neonatal Rat Brain

Early Evolution and Recovery from Excitotoxic Injury in the Neonatal Rat Brain: A Study Combining Magnetic Resonance Imaging, Electrical Impedance, and Histology Menno van Lookeren Campagne, Jeroen B. Verheul, Klaas Nicolay and Robert Balázs [Originally published in J Cereb Blood Flow Metab 1994;14(6):JOll-J023] The print quality of Fig. 6G in the above article was poor and the figure therefore lacked the necessary detail. The publisher apologizes for this and reprints Fig. 6 , in its entirely, with the legend below. [Figure: see text]

scholarly journals Changes in surface properties of dental alloys with atmospheric plasma irradiation

2020 ◽  
Vol 39 (3) ◽  
pp. 375-380
Author(s):  
Yasuhiro NAMURA ◽  
Yasuki UCHIDA ◽  
Ryoichi SATO ◽  
Noriyoshi SHIMIZU ◽  
Mitsuru MOTOYOSHI ◽  
...  
Keyword(s):  
Surface Properties ◽  
Atmospheric Plasma ◽  
Dental Alloys ◽  
Plasma Irradiation

scholarly journals ANALYZING THE EFFECT OF DENSITY VALUE DEVIATION ON PRINT QUALITY

KREATOR ◽  
2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Soebardianto . ◽  
Septia Ardiani ◽  
Romi Setiawan
Keyword(s):  
Quality Control ◽  
Quality Parameters ◽  
Quality Level ◽  
Print Quality ◽  
Machine Material ◽  
Digital World ◽  
Quality Control Parameters ◽  
Density Values ◽  
Standard Density

The quality control activities, in particular the measurement of density values, are part of the quality control parameters carried out by each company. Companies sometimes forget about the quality parameters of the name, even though the quality can give the printed products a good guarantee in the eyes of consumers. To achieve the quality level, of course, the business does not stand idle, there are several things that need to be done or provided by the business to support the quality, namely man (human), machine (machine), material (material), and method (method). In the development of technology in an increasingly advanced digital world, companies want to continue to compete with a digital world by making inroads, this of course gives the products produced by the company a good or a good level of quality. In this discussion, there is an identification of problematic aspects arising from the deviation of density values as well as ways to obtain standard density values and factors that affect the quality of prints on book cover prints using a Heidelberg machine.Keywords—Quality Control, Density, Standart, Product, Deviation

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