Effect of Monomer on Performance of UV-LED Inkjet Ink

2013 ◽  
Vol 469 ◽  
pp. 68-73
Author(s):  
Qing Yi ◽  
Xian Fu Wei ◽  
Bei Qing Huang ◽  
Qi Wang

UV-LED inkjet ink is a promising environmental ink which has advantages as higher reaction speed, higher efficiency and energy saving, better environmental protection, its research and development can contribute to realizing green printing and its important for food packing security. Monomer is the important component of the UV-LED ink, in order to investigate the impact of monomer on dispersivity of UV-LED inkjet ink, seven kinds of monomers were chosen to prepare cyan color paste respectively and test their particle size and distribution. Then the ratio of co-monomers was achieved by formulation experiment to obtain the best dispersivity. In order to improve the performance of the UV-LED inkjet ink, different monomers were used to make ink samples separately, viscosity, surface tension, curing rate of the ink and flexibility and adhesion were tested. In the end, the ratio of co-monomers was achieved by formulation experiment to obtain the best overall performance. The results show that the monomer has a significant influence on the dispersion and curing rate of the UV-LED inkjet ink, but also has a great impact on film-forming properties of the ink after UV-LED curing.

2018 ◽  
Vol 49 ◽  
pp. 00129
Author(s):  
Izabela Wilkos ◽  
Marcin Jędrzak ◽  
Marek Szymczak

The results of observation on the impact of the glass baking process on the quality of connection with glass drenched in copper. The aim of the work is to present the results obtained in the process of fragmentation of the glass and the assessment of the particle size distribution on the durability of the connection of glass and copper. The test used two types of glass divided by different fineness. Copper was used in the form of galvanized sheet metal and pipes and cables to diversify cross-section openness. Received samples were cut with a circular saw in accordance with vertical and horizontal axis. Microscopic analysis, allowing to evaluate porosity of obtained composite, was carried out. On the basis of the analysis of the results, it was specified that fineness of glass and the temperature of the baking process has a significant influence on the combination of glass with copper.


2017 ◽  
Vol 25 (0) ◽  
pp. 112-120 ◽  
Author(s):  
Ying Wang ◽  
Jianfeng Li ◽  
Hui Li ◽  
Xiaodan Wang ◽  
Hong Lei ◽  
...  

Chitosan-modified corn starch was prepared and then applied as a glass fiber sizing agent. The effect of the chitosan on starch-based emulsion, film and sized glass fiber was studied. When 5 % of the chitosan was added, the overall performance of the modified film-forming agent was optimal. The viscosity, surface tension and zeta potential of the sizing agent were 44.99 mPa·s, 51.29 mN·m[sup]-1[/sup] and 4.5 mV, respectively. The modified sizing agent could easily spread over the surface of glass fibre, and conglutinated to the glass surface firmly. The tensile strength and stiffness of modified-starch glass fiber reached 0.43 N·tex[sup]-1[/sup] and 4.96 cm. Glass fiber with good overall performance was obtained.


2011 ◽  
Vol 380 ◽  
pp. 99-102
Author(s):  
Hai Liang PAN ◽  
Wan Zhang ◽  
Bei Qing Huang ◽  
Xian Fu Wei ◽  
Ju Gao

With the aim to study the effect of prepolymer on performance of UV ink-jet yellow ink , prepare UV ink-jet yellow ink color paste by change prepolymer and pigment/binder , test it’s particle size and distribution, explore the effect of different prepolymers and pigment/binder on the dispersion property; make ink color good dispersion paste into ink by using different film forming prepolymers, test the surface tension , viscosity , and curing speed, explore the effect of different prepolymers on the performance of UV ink-jet ink. The results indicate that, prepolymer on the dispersion property has great influence, color paste prepared by prepolymer CN2303 at pigment/binder for 2:1 has minimum particle size, and has good dispersion, film forming prepolymers has great influence on viscosity and curing speed of ink, has little effect on the surface tension of ink.


Author(s):  
J.R. Caradus ◽  
D.A. Clark

The New Zealand dairy industry recognises that to remain competitive it must continue to invest in research and development. Outcomes from research have ensured year-round provision of low-cost feed from pasture while improving productivity. Some of these advances, discussed in this paper, include the use of white clover in pasture, understanding the impacts of grass endophyte, improved dairy cow nutrition, the use of alternative forage species and nitrogen fertiliser to improve productivity, demonstration of the impact of days-in-milk on profitability, and the use of feed budgeting and appropriate pasture management. Keywords: dairy, profitability, research and development


1988 ◽  
Author(s):  
Laurence Storch ◽  
Donald Fraser ◽  
Robert Lunn ◽  
Barbara Glacel ◽  
Naomi J. McAfee

Author(s):  
Mohinder C. Dhiman ◽  
Abhishek Ghai

The paper has a two fold purpose - examine the impact of bar service operation practices (BSOP) on organizational performance (OP) and study the relationship between organizational performance and demographic variables. Based on a survey of 362 bar managers perceptions on the impact of bar service operation practices on organizational performance were assessed by 59 practices and 6 demographic variables. Bivariate test and ANOVA were employed to test the working hypothesis in the study. Results indicated that there is a positive relationship between the bar service operation practices and organizational performance. Further, the results indicate some practical and managerial implications to improve organizational overall performance.


Author(s):  
Wojciech Sobieski

AbstractThe paper describes the so-called Waterfall Algorithm, which may be used to calculate a set of parameters characterising the spatial structure of granular porous media, such as shift ratio, collision density ratio, consolidation ratio, path length and minimum tortuosity. The study is performed for 1800 different two-dimensional random pore structures. In each geometry, 100 individual paths are calculated. The impact of porosity and the particle size on the above-mentioned parameters is investigated. It was stated in the paper, that the minimum tortuosity calculated by the Waterfall Algorithm cannot be used directly as a representative tortuosity of pore channels in the Kozeny or the Carman meaning. However, it may be used indirect by making the assumption that a unambiguous relationship between the representative tortuosity and the minimum tortuosity exists. It was also stated, that the new parameters defined in the present study are sensitive on the porosity and the particle size and may be therefore applied as indicators of the geometry structure of granular media. The Waterfall Algorithm is compared with other methods of determining the tortuosity: A-Star Algorithm, Path Searching Algorithm, Random Walk technique, Path Tracking Method and the methodology of calculating the hydraulic tortuosity based on the Lattice Boltzmann Method. A very short calculation time is the main advantage of the Waterfall Algorithm, what meant, that it may be applied in a very large granular porous media.


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