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Zhang F.,Lucky Huaguang Graphics Co. | Shen M.,Nanyang Institute of Technology | Shao G.,Lucky Huaguang Graphics Co. | Zhang G.,Lucky Huaguang Graphics Co.
Chinese Journal of Environmental Engineering | Year: 2013

The circulation utilization of wastewater produced by alkali washing of aluminum base plate used for print, was researched. The wastewater was disposed to remove the oil and decolor. By the synergistic effect of lime and stearic acid, the COD content droped from 26 300 mg/L to 480 mg/L and chroma droped to 60°. The pseudo-boehmite was prepared with the alkaline waste liquid contained aluminum by carbonization. The alkali washing waste liquid which prepared according to the prescription requirements was used for oil removing from aluminum base plate. The results show that the oil removal effect and corrosion rate meet the requirements after five cycles.

Qin D.,Hebei University of Technology | Qin D.,Lucky Huaguang Graphics Co.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2014

Currently, the low yield, high power loss, and poor stability of organic light emitting diodes (OLEDs) panels are remaining as the obstacles to the fast growth of the OLED industry, especially for the lighting application. The p-i-n OLEDs have been widely recognized as the promising method to circumvent these bottleneck factors, due to the unique merit of the electrical doping to enable low power loss. In p-i-n OLEDs, the frequently used n-doped electron transport layers (n-ETL1) such as n-BCP, n-Alq3 possess markedly lower conductivities but better capabilities of injecting electrons into ETL such as BCP, Alq3, as compared to another class of n-doped ETLs (n-ETL2), e.g., n-NTCDA, n-PTCDA, n-C60. Thus, in order to minimize the electron loss, we provide the structure of uniting two n-doped layers, cathode/ n-ETL2/ n-ETL1/ ETL. In p-i-n OLEDs, the hole current injected from the single p-doped hole transport layer (p-HTL) into the neat HTL must be limited, because the higher conductivity p-HTL has the higher lying highest occupied molecular orbital (HOMO) level, leading to a larger hole transport energy barrier (φB) at the interface with the neat HTL. Therefore, in order to minimize the hole loss, we suggest the structure of uniting two p-HTLs, anode/ p-HTL2/ p-HTL1/ HTL. The p-HTL2 possesses high-lying HOMO level and thereby high conductivity, decreasing the ohmic loss in the hole conduction; the p-HTL1 features a low-lying HOMO level, reducing the φB. © 2014 Copyright SPIE.

Lucky HuaGuang Graphics; Co. | Date: 2014-02-04

Photosensitive plates; unexposed sensitized photographic films; photographic paper; photographic developers; photography fixing solutions; sensitized plates for offset printing.

An infrared sensitive and chemical treatment free photosensitive composition, includes, based on weight percentage, 30-70% of a water soluble thermally cross-linking resin, 1-20% of a water-soluble photocross-linking polymerized resin, 10-50% of a photopolymerizable oligomer, 1-30% of a multifunctional monomer, 1-20% of a cationic photopolymerization initiator, and 1-20% of an infrared irradiation absorption dye. The photosensitive composition of the present invention is useful for preparation of an infrared sensitive and chemical treatment free lithographic plate. The lithographic plate of the present invention has a high sensitivity and a good mesh point reduction, and after exposure to an infrared light source, can be printed directly after being washed with tapped water or without any washing and processing step, and has a long run length.

Wu G.,Zhejiang University | Yin P.,Zhejiang University | Dai R.,Zhejiang University | Wang M.,Zhejiang University | And 3 more authors.
Journal of Materials Research | Year: 2012

Electrophoretic displays (EPDs) are attracting a great deal of academic and commercial interest due to the advantages of both electronic displays and conventional paper. The key materials for EPD application of microcapsules are the electrophoretic particles and the capsule wall enwrapping the electrophoretic suspension inside. Here, black and white electrophoretic particles with low density and good dispersity such as titanium dioxide, carbon black, and Cu2Cr2O3 were prepared by surface modification of the pigments. The preparation and properties of the gelatin-based microcapsules prepared by complex coacervation methods are also summarized. The microcapsules have transparent and elastic walls of compact structure, which endows them with good barrier properties and thermal stability for EPD application. EPD prototype devices based on the obtained microcapsules were prepared and could be driven at 9 V. © Materials Research Society 2012.

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