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Letteratura scientifica selezionata sul tema "Standard Printing Ink Co"

Autore: Grafiati

Pubblicato: 29 luglio 2024

Ultima modifica: 30 luglio 2024

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Articoli di riviste sul tema "Standard Printing Ink Co"

Jasińska, Laura, Krzysztof Szostak, Milena Kiliszkiewicz, Piotr Słobodzian e Karol Malecha. "Ink-jet printed ring resonator with integrated Microfluidic components". Circuit World 46, n. 4 (16 marzo 2020): 301–6. http://dx.doi.org/10.1108/cw-11-2019-0176.

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Purpose The main purpose of this study is to test the performance of the ink-jet printed microwave resonant circuits on Low temperature co-fired ceramics (LTCC) substrates combined with microfluidic channels for sensor applications. Normally, conductive patterns are deposited on an LTCC substrate by means of the screen-printing technique, but in this paper applicability of ink-jet printing in connection with LTCC materials is demonstrated. Design/methodology/approach A simple microfluidic LTCC sensor based on the microstrip ring resonator was designed. It was assumed the micro-channel, located under the ring, was filled with a mixture of DI water and ethanol, and the operating frequency of the resonator was tuned to 2.4 GHz. The substrate was fabricated by standard LTCC process, and the pattern of the microstrip ring resonator was deposited over the substrate by means of an ink-jet printer. Performance of the sensor was assessed with the use of various volumetric concentrations of DI water and ethanol. Actual changes in concentration were detected by means of microwave measurements. Findings It can be concluded that ink-jet printing is a feasible technique for fast fabrication of micro-strip circuits on LTCC substrates, including microfluidic components. Further research needs to be conducted to improve the reliability, accuracy and performance of this technique. Originality/value The literature shows the use of ink-jet printing for producing various conductive patterns in different applications. However, the idea to replace the screen-printing with the ink-jet printing on LTCC substrates in connection with microwave-microfluidic applications is not widely studied. Some questions concerning accuracy and reliability of this technique are still open.

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Maknakorn, W., P. Jutaporn e W. Khongnakorn. "Coagulation and adsorption as pretreatments of thin-film composite–forward osmosis (TFC-FO) for ink printing wastewater treatment". Water Science and Technology 79, n. 5 (1 marzo 2019): 877–87. http://dx.doi.org/10.2166/wst.2019.100.

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Abstract This study investigated the performance of coagulation with ferric chloride (FeCl3.6H2O) and adsorption with activated carbon used as pretreatments prior to thin-film composite–forward osmosis (TFC-FO) filtration of ink printing wastewater. Wastewater samples were collected from a printing factory located in Chao Phraya river basin where zero liquid-discharge standards are regulated. The FO filtration unit was operated in co-current mode with the cross-flow velocity of 600 mL/min using 2 M NaCl as draw solution. The FO membrane achieved 83.9–91.0% chemical oxygen demand and 91.2–99.9% color rejections. FO filtration of raw wastewater, coagulation-treated wastewater, and coagulation and adsorption-treated wastewater resulted in 56.3%, 49.0% and 46.1% of flux decline in 150 min. Scanning electron microscopy and Fourier transform infrared spectrometry results revealed that cake formation caused by colloidal particles and pore blocking from precipitation were the major fouling mechanisms. Cake-enhanced concentration polarization also promoted adsorption of color and pigments at the membrane surface. Both fouling mechanisms were successfully mitigated by adsorption following coagulation pretreatment. Overall, the combined pretreatments and FO have potential for the effective treatment and reuse of ink printing wastewater.

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Leng, Xian, Lu Hai Li, Xu Wei Hu, Hua Fang, Shu Kun Li, Shi Gang Liu e Guang Jie Li. "Study on Dispersion and Performance of Yellow Lake". Advanced Materials Research 233-235 (maggio 2011): 1246–51. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.1246.

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In order to study the dispersion and performance of tartrazine aluminum lake, 7 kinds of water-based resins are used to form disperse system. These systems are enviroment friendly (low VOC) and use edible yellow lake as colorant. If proper adjustment is added, these disperse systems can be made into ink and paint. The application field should be printing or coating on all the food or drug packages, toys and decorate materials, which will improve social safe level. Colorant, resin, wetting agent, co-solvent, emulsifier, and deionized water are mixed at certain ratio and pre-dispersed for 15min, then dispersed in GJ-2S high speed sanding mill for 3h. Size distribution, PDI, color characteristics (reflectance spectroscopy and color density), glossiness, abrasion performance, and stability are studied. Results demonstrate particle size of disperse system is 338.1~595.3nm (PDI<0.3) and changed to 428.6~551.2nm after 5 days or so. Reflectance spectroscopy is close to PANTONE standard yellow. Glossiness is referred as Gs(60°)≥32°. Viscosity is 0.2~2Pa·S. Relative stable disperse system is prepared.

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Yuan, Xingyu, Wen Li, Bin Yao, Zhao Li, Deling Kong, Sha Huang e Meifeng Zhu. "Tri-Layered Vascular Grafts Guide Vascular Cells’ Native-like Arrangement". Polymers 14, n. 7 (28 marzo 2022): 1370. http://dx.doi.org/10.3390/polym14071370.

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Bionic grafts hold great promise for directing tissue regeneration. In vascular tissue engineering, although a large number of synthetic grafts have been constructed, these substitutes only partially recapitulated the tri-layered structure of native arteries. Synthetic polymers such as poly(l-lactide-co-ε-caprolactone) (PLCL) possess good biocompatibility, controllable degradation, remarkable processability, and sufficient mechanical strength. These properties of PLCL show great promise for fabricating synthetic vascular substitutes. Here, tri-layered PLCL vascular grafts (TVGs) composed of a smooth inner layer, circumferentially aligned fibrous middle layer, and randomly distributed fibrous outer layer were prepared by sequentially using ink printing, wet spinning, and electrospinning techniques. TVGs possessed kink resistance and sufficient mechanical properties (tensile strength, elastic modulus, suture retention strength, and burst pressure) equivalent to the gold standard conduits of clinical application, i.e., human saphenous veins and human internal mammary arteries. The stratified structure of TVGs exhibited a visible guiding effect on specific vascular cells including enhancing endothelial cell (EC) monolayer formation, favoring vascular smooth muscle cells’ (VSMCs) arrangement and elongation, and facilitating fibroblasts’ proliferation and junction establishment. Our research provides a new avenue for designing synthetic vascular grafts with polymers.

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Qu, Zhen Cai, Guang Xue Chen, Bao Lin Tang e Shuang Shuang Wen. "Study on Model of Dot Gain in Ink-Jet Printing". Advanced Materials Research 236-238 (maggio 2011): 1405–9. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.1405.

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Ink-jet printing is a non-contact printing, drops are jetted on the substrates to form images through the nozzles at a certain speed. Dot is the smallest unit in printing; the qualities of printing are seriously affected by dot gain. Ink spreading and penetration are discussed in this paper, influences on dot gain in ink-jet printing are studied, the original Young's equation and Washburn formula are theoretically amended, more scientific and rational models and formulas are obtained in the actual process of ink-jet printing, which offers reference standard and theoretical basis to improve the quality of ink-jet printing.

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Liu, Jiang Hao, Shao Hong Gao, Qiao Liang Li e Tian Tian Mao. "Study on the Detection Methods of Ink Color Standard Based on ISO2846". Applied Mechanics and Materials 731 (gennaio 2015): 535–40. http://dx.doi.org/10.4028/www.scientific.net/amm.731.535.

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Ink is one of the most important raw materials in printing processes, the quality of printed product uniformity and color reproduction, usually to some extent, depends on ink performance, which needs the authoritative and reliable way to measure ink colors. The paper is to test and verify the ink color measurement methods based on ISO 2846 international standards by the experiments, and the performance indicators of domestic standards substrates are determined through analyzing the characteristics of the domestic printing and ink manufacturing industries, and then the preparation of ink color measurement samples and ink color test conditions are studied.

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Liu, Zhen, Jian Hong e Sheng Hui Li. "Evaluation of Quality for Ink-Jet Printing Based on Capturing Measurement and Control Elements by CCD". Advanced Materials Research 174 (dicembre 2010): 211–14. http://dx.doi.org/10.4028/www.scientific.net/amr.174.211.

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with the rapid development of digital printing, the method and standard of quality detection for digital printing become focus of research. The main work and innovations in this paper include: ①Computer image analysis method was applied to ink-jet printing quality detection for the first time; ②Compared with traditional printing quality test, ink dot, line, color patch and MTF (Modulation Transfer Function) were selected as measurement and control elements. And the test proofs for detecting printing quality were designed; ③The detection algorithm and the overall detection process were put forward in this paper. The result of the experiment demonstrates: the detection method based on capturing measurement and control elements by CCD can accurately accomplish the objective quality evaluation for ink-jet printing. Detection method of print was improved to extend the scope of detection by this research, which could be generalized as a standard method for the detection of ink-jet printing quality.

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Yang, Yong Gang, e Fu Ping Liu. "Preliminary Study on the Print-through Standard of Offset Printing". Advanced Materials Research 332-334 (settembre 2011): 1812–15. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.1812.

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In order to control digitally the print-through, the print-through standard of offset printing was studied in this article. For 4 given paper samples, the paper properties including paper opacity and K&N ink absorbency were tested, and then print-through value expressed with ΔD and ΔEab* was measured under 9 sets of printing condition. The results showed that lower printing press and higher printing speed were helpful to reduce the print-through. And under the same printing conditions, the print-through value of cyan ink print was slightly larger than that of magenta ink print. In addition, the print-through values of offset paper samples were a bit larger than that of newsprint samples. In particular, no matter what kind of conditions were, the print-through value expressed with ΔD and ΔEab* were lower than 0.04 and 4NBS when the PTR value was larger than 72%. The standard of print-through was firstly given, which was very helpful to choose paper during the offset printing.

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Meijer, Rob, Peter Thomson e Lysbeth Croiset van Uchelen-Brouwer. "The History of the Lithographie Royale, 1818-25". Quaerendo 31, n. 4 (2001): 281–306. http://dx.doi.org/10.1163/157006901x00173.

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AbstractFrom 1816 lithographic businesses began to develop in Western Europe. Use was made of a printing technique, lithography - based on the repellent working of water and fat - which was catching on especially in Germany and France. The Low Countries remained behind: early in 1818 only small lithographic printing offices were to be found in Brussels, Amsterdam and Rotterdam. At about that time the Frenchman MJ.V. Duval de Mercourt, calling himself an architect, presented himself in the Netherlands. Stimulated by the Dutch envoy at the court of Paris, Baron Fagel, he requested King William I to be permitted to found lithographical offices in The Hague and Brussels and to call himself Royal Lithographer. This was permitted by Royal Decree of 16 July 1818. Added to it was, highly unusually, that the establishment of Duval was greeted with approval, and that the hope was expressed that he might succeed in his attempts. The background of all this was the industrialisation policy that was pursued more in particular by the king himself. Indeed, Duval set about his business with great expectations and fervour. Probably he officially opened a - for Dutch standards - large lithographic printing office which consisted of at least two presses, which he called the Lithographie Royale'. He focused in particular on government commissions and especially on making autographs of written documents which up to that time had to be copied by hand. This technique, where writing was done with fat ink on prepared paper, after which the text was transferred to the stone and printed, seemed a godsend indeed. This autographic technique also had the king's interest: for, would it not be possible to introduce it and subsequently discharge clerks at the ministries? The future seemed to favour Duval, but alas, reality was different. It appeared that government as well as private institutions would provide him with hardly any work, possibly because of his high prices. It is also remarkable that some ministries did not want to have anything to do with this new printing method. After half a year he was already threatened with financial downfall, also through a loss he had personally suffered and the downward turn of the Dutch economy. The king then intervened with a number of measures in favour of Duval, of which the most important was that he was allowed to work for the Ministry of Water Management. An attempt was also made to accommodate him at the Algemeene Landsdrukkerij in The Hague, a government printing office with a monopoly on all government printed matter. The directors, however, confirmed letterpress printers, did not believe in this new printing technique which, according to them, could have no future because it would always be more expensive than their own beautiful printing. Because the locations of the ministries were changing between The Hague and Brussels about every half year, Duval was forced to follow the Ministry of Water Management to Brussels and to found a lithographic printing office there as well. Although he was supplied with more work there, he appeared to be at the end of his tether half way through 1819 due to a lack of financial resources. His financial situation was such that he was even refused a government advance because it was feared that he would not be able to reimburse it. Thereafter he was forced to make a disadvantageous contract with a private person, after which he left for The Hague, a destitute man. Although work from the Ministry of Water Management was also given to him there, things continued to go downhill for him. He now also lost his premises in The Hague so that he could no longer accept commissions. True, some time later a new place was found, but he had to agree that his co-worker, D. Abrahams, was to be appointed as his partner. Halfway through 1820 there arrived at last a reply to the many petitons and pleas he had sent to the king. This was, however, negative, because it was feared that a financial contribution from the government might slow down the downfall of his enterprise, but would not prevent it. Even damages were not granted because he was supposed to have given a false impression of things. He then left first to go to Brussels and later on to France, leaving his lithographic printing office in The Hague to Abrahams. The latter succeeded in getting the enterprise off to a good start within a few years, notably by making lithographs and trading in lithographs and sheet music, the main aim of the business. From about 1823 the number of commissions for lithographs increased, with a marked improvement in the quality of his work. This resulted in an honourable mention in the second industry exhibition held in the Netherlands in the summer of 1825. During this exhibition he was appointed first lithographer at the Algemeene Landsdrukkerij! This was because the king had intervened anew in the field of lithography and persevered against the advice of his minister in having an autographic printing office there, an office that was to be closed in 1832 due to lack of work and with great losses. The Lithographic Royale subsequently stopped its activities after Abrahams had received a compensation in his salary for it. Finally, the lithographic activities in The Hague were continued by his brother, A.M. Abrahams, on a modest scale.

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Memon, Hafeezullah, Nazakat Ali Khoso, Samiullah Memon, Ning Ning Wang e Cheng Yan Zhu. "Formulation of Eco-Friendly Inks for Ink-Jet Printing of Polyester and Cotton Blended Fabric". Key Engineering Materials 671 (novembre 2015): 109–14. http://dx.doi.org/10.4028/www.scientific.net/kem.671.109.

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The aim of this research is to discover such a strategy so that Ink-jet Printing of polyester and cotton blended fabric. This research focuses to develop inks by the combination of Reactive and disperse dyes and by using eco-friendly co-solvents. This paper covers a brief introduction of Ink jet printing technologies and types of inks. A summarized study of the evaluation amid ink jet printing as well as rotary screen printing is also given. In addition to, requirements and composition of water-based ink-jet inks focusing on methodology is given. Furthermore, shelf lives of inks, image sharpness, surface tension, color fastness to rubbing, analysis of head with some personal experiences are also discussed.

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Più fonti

Tesi sul tema "Standard Printing Ink Co"

Johansson, Nils. "Printing colour hard proofs using EFI Colorproof XF v. 3.1 and Photoshop CS3, and production substrates". Thesis, Högskolan Dalarna, Grafisk teknik, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:du-4215.

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EFI Colorproof XF was found to be more convenient from a user’s aspect, and had features which are covered in the ISO 12647-7 standard (e.g. the ability to simulate screening and print margin information), which Photoshop CS3 lacked. None of the proofing systems distinguished itself in a clear way from the other; sometimes, on certain substrates, Photoshop CS3 produced most accurate colours, sometimes EFI Colorproof XF did. Further investigations need to be carried out to tell more exactly which system produce most accurate colours. Only 6 out of 34 simulation-combinations had colours within the tolerances in the standard. The result also shows that the production substrates should not be used as proofing substrates. Instead the proofing papers especially made for ink jet should be used to obtain more colour-accurate prints.

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Buanz, A. B. M., Richard Telford, Ian J. Scowen e S. Gaisford. "Rapid preparation of pharmaceutical co-crystals with thermal ink-jet printing". 2012. http://hdl.handle.net/10454/8541.

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Yes
Thermal ink-jet printing (TIJP) is shown to be a rapid (minutes) method with which to prepare pharmaceutical co-crystals; co-crystals were identified in all cases where the co-formers could be dissolved in water and/or water/ethanol solutions.

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Libri sul tema "Standard Printing Ink Co"

Repath, Elizabeth. Ink for print: The story of Shackell Edwards & Co. Limited, printing ink manufacturers since 1786. Leatherhead: Shackell Edwards, 1986.

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Ltd, ICON Group. TOKYO PRINTING INK MFG. CO., LTD.: International Competitive Benchmarks and Financial Gap Analysis (Financial Performance Series). 2^a ed. Icon Group International, 2000.

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Ltd, ICON Group. TOKYO PRINTING INK MFG. CO., LTD.: Labor Productivity Benchmarks and International Gap Analysis (Labor Productivity Series). 2^a ed. Icon Group International, 2000.

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Atti di convegni sul tema "Standard Printing Ink Co"

Zboinska, Malgorzata A., Isac Mjörnell, Sebastian Oguz, Rebecka Rudin e Toste Skånberg Dahlstedt. "Non-Standard Robotic 3D Printing for Architects - A comprehensive digital fabrication lab pedagogy integrating non-programmable material effects". In eCAADe 2022: Co-creating the Future - Inclusion in and through Design. eCAADe, 2022. http://dx.doi.org/10.52842/conf.ecaade.2022.1.019.

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Mangin, P. J., e P. Geoffroy. "Printing Roughness and Compressibility: A Novel Approach Based on Ink Transfer". In Fundamentals of Papermaking, a cura di C. F. Baker e V. Punton. Fundamental Research Committee (FRC), Manchester, 1989. http://dx.doi.org/10.15376/frc.1989.2.951.

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A new approach to characterize the roughness of paper in contact with ink under compression in the printing nip is proposed. The printing roughness is calculated from the parameters of the ink coverage function contained in the ink transfer equations. The approach assumes an identity between the ink transfer coverage function and the pore shape function of the surface pores. Although the printing roughness correlates well with standard roughness/porosity tests, different regression lines result from different printing conditions . The printing roughness was found to be inversely linearly related to the logarithm of the printing pressure with the slope of the regression line representing a measure of the compressibility of the paper surface. The compressibility is independent of the printing pressure but, for rough papers, is a function of the nip dwell time.

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Mustač, Sandra, Igor Majnarić, Stanko Bauk e Slaven Miloš. "Colour quality testing of CYAN offset prints depending on pigment concentration and different CTP screening mode". In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p47.

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One of the problems in the offset printing technique is the picking of uncoated paper, which occurs due to the activity of pressure cylinder and sticky offset inks. To reduce offset ink stickiness, it is possible to add cheaper ink filler that will indirectly reduce the concentration of pigment. However, there is also a reduction in the colour tones and quality of reproduction. In this experiment we used: standard cyan offset ink (Sun Lit Express ink which consists of phthalocyanine based pigment) and high-quality gloss coated cardboard (250 g/m2 Euroart plus gloss). This paper aims to show how the CTP screening type (AM/FM mode) and the CTP line screening (80, 100, 120 line/cm and 10 μm, 20 μm 25 μm diameter of print elements) manifest on the reproduction quality of a standard gradation wedge. This research will create the possibility of correlating the factors of user reduction of pigment concentration and reproduction quality of cyan colour separation. By using the AM screenings and adding different concentrations of ink filler, more stable cyan prints are achieved.

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Plazonić, Ivana, Irena Bates, Vesna Džimbeg-Malčić e Davor Zember. "Colorimetric changes of waterbased flexographic ink printed on hemp-based papers exposed to artificial ageing". In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p3.

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The objective of the research was to investigate colorimetric changes of the waterbased flexographic ink printed on hemp-based papers subjected to artificial ageing. Three types of commercially available hemp office papers were used as printing substrate and by Esiproof instrument were printed manually in full tone with process waterbased flexographic inks. Both, papers and prints were exposed to artificial ageing in the Suntest XLS+ test chamber according ASTM D 6789-2 standard. The L∗, a∗, b∗ colour coordinates were measured and ΔE00 colour difference was calculated for different stages of light exposure in order to determine the change from the original color value. In total exposure time was 96 h. The results have shown how the paper optical stability is dependent upon manufacturing process and that bleached hemp fibers provides better optical stability of papers than unbleached hemp fibers. Further, stability of prints made on hemp-based papers is for the most part defined by ink color, while the impact of the printing substrate is less pronounced. Generally, it was noticed how the most stable among prints were prints covered with the black ink, while prints with the yellow ink had the greatest changes in color under the influence of light.

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Zhou, Ding, Jiabei Jiang e Yuqing Zou. "Systemic Design Method for Co-creation of 3D Printing Service". In Systems & Design: Beyond Processes and Thinking. Valencia: Universitat Politècnica València, 2016. http://dx.doi.org/10.4995/ifdp.2016.3144.

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Background- As one of the objectives of Design for Additive Manufacture, the capability of customized geometry promotes 3D printing to increasingly realize product customization in the service market. Defined as a business strategy focusing on customer experience and interaction, co-creation is expected to obtain fast-growing market volume. Recently, some co-creation of 3D printing service (3DPS) have been released to realize value creation. Despite its rapid growth, there is little research on this field, especially its design method. Aim- This research aims to define a systemic design method for developing the co-creation of 3DPS. Method- First, this research distinguished ambiguous-type and definite-type of 3DPS co-creation. The latter was taken as the current research object, because it presents the services scope more clearly. Furthermore, in order to solve the research question, that is, how to organize the service innovation for 3DPS co-creation, evidence needed to be collected by observing the mentioned cases. Therefore, holistic multiple-case study of 3DPS co-creation samples was designed and conducted, as it was herein employed as the research method. This research is divided into three sections. The first section presents the preparation for data collection, involving case selection and the formulation of evidence collection. The second section analyzes the collected evidences. Based on the evidence analysis, the third section concludes the knowledge of 3DPS co-creation. In order to collect adequate evidences, a pair of models was employed to build a framework. The first one is the Den Hertog's service innovation model, which presents four dimensions including new service concept, new client interface, new service delivery system, and technological options. Another model refers to the building blocks of interactions for value co-creation: dialogue, access, risk-benefits, and transparency, presenting the components in basis construction, which are necessary for the interaction between consumer and service provider. Finding- The findings conclude a systemic design method for 3DPS co-creation, which is divided into the following steps: embedding 3DPS co-creation in current product customization, developing a WebGL-based interface for service processes, preparing 3D printing technology for customized results, evaluating and optimizing the co-creation structure according to the standard including clear dialogues, complete customization access, reasonable understanding of risk-benefits, and ideal transparency.Conclusion- This research proposes a systemic design method for co-creation of 3DPS, which promises benefits to enterprises engaged in the 3D printing service, and will contribute to promoting co-creation in the context of service design and other related fields.DOI: http://dx.doi.org/10.4995/IFDP.2016.3144

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Sukeshini, A. M., T. Jenkins, P. Gardner, R. M. Miller e T. L. Reitz. "Investigation of Aerosol Jet Deposition Parameters for Printing SOFC Layers". In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33262.

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This work entails an investigation of the Aerosol Jet® Printing (AJP) method for depositing dense and porous layers necessary for the fabrication of solid oxide fuel cells (SOFCs). Ink preparation, method of printing, and the impact of various printing and processing parameters on the microstructure of layers will be presented. In addition, the electrochemical performance of anode supported button cells produced via the AJP process will be discussed. Thin electrolyte and cathode layers were deposited onto a standard anode-supported substrate and consisted of a yttria stabilized zirconia (YSZ) electrolyte, a strontium doped lanthanum manganate (LSM)/YSZ cathode functional interlayer, and a neat LSM cathode current collection layer. Optimal printing parameters for depositing dense electrolyte layers with thickness ranging from a few microns to a few tens of microns (8–33 μm) were identified. Porous composite cathode interlayers were printed from mixtures of individually aerosolized components of YSZ and LSM. Button cells incorporating the electrolyte and cathode layers on a NiO/YSZ support substrate exhibited stable voltage of 1.16–1.20 V at open circuit at 700–850 °C for hydrogen and air as fuel and oxidant, respectively. The results demonstrate the capability and potential of AJP method for deposition of layers necessary for SOFC fabrication and suggest that the method is very viable for obtaining highly reproducible microstructures with potential for mass manufacturing.

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Engle, Robb. "Maximizing the Use of Platinum Catalyst by Ultrasonic Spray Application". In ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology collocated with ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/fuelcell2011-54369.

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The following discusses the method and advantages of ultrasonic deposition of carbon-based platinum ink solution onto catalytic membranes in the manufacture of platinum-based fuel cells, doubling industry standard performances. Using patented ultrasonic atomization technology, conductive properties are compared to those of films created with hydraulic deposition and paste printing methods, using comprehensive analysis of morphology characteristics, deposition density, and distribution of platinum particles throughout the thickness and surface area of the coating. Results indicate significant increase in uniform distribution of platinum particles using the ultrasonic deposition method. Measured electrochemically active Pt surface area using ultrasonic atomization was recorded as high as 71% of the total Pt particle surface area.

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McGrath, Kimberly, e Douglas Carpenter. "Improved Electrocatalytic Activity of Oxygen Reduction on Platinum Using Nano-Cobalt in Direct Methanol Fuel Cell Cathode Electrodes". In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97198.

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High surface area nanometal particles of nano-cobalt (n-Co) (approx 8 nm particles), produced at QuantumSphere Inc., were blended in various ratios with Pt and Nafion® ionomer, and investigated for their electrocatalytic activity in the oxygen reduction reaction (ORR). The ORR was evaluated by voltammetry using Pt/n-Co blended catalyst on glassy carbon to determine both kinetic activity and as an indicator of direct methanol fuel cell (DMFC) cathode performance. Kinetic enhancement was observed for Pt:n-Co where n-Co is 30–50% (by weight) of the catalyst mixture, including a minimum of 10 mV improvement in the open circuit voltage (OCV). By Tafel slope measurements, it is clear that the mechanism for ORR does not change, however the reaction rate is enhanced by addition of n-Co to Pt in the catalytic ink. For ink compositions similar to those used for standard DMFC cathodes, eliminating 50% of the Pt black resulting in 50% higher energy density while reducing total catalyst cost by roughly 44%.

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Langer, G., A. Kremsner e R. Polak. "Carbide Coatings on Fibre-Reinforced Anilox Rollers using the TeroStar Process". In ITSC2005, a cura di E. Lugscheider. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2005. http://dx.doi.org/10.31399/asm.cp.itsc2005p0033.

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Abstract In Flexoprinting the acceleration of printing speed is the driving force to use more and more lightweight anilox rollers made out of glass or carbon fibre reinforced materials. On the other hand anilox roll manufacturers are constantly looking for coating materials allowing finer engraved structures and the processing of higher ink volumes at extended cleaning cycles. This paper describes basic trends in Flexoprinting and presents the development of a special carbide coating solution showing characteristic advantages compared to the standard plasma sprayed chromium oxide coating. Moreover the TeroStar-process is being presented as a suitable high velocity spraying process to apply this carbide coating onto fibre-reinforced anilox rolls by fulfilling the quality requirements for the laser engravement.

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Ružičić, Branka, Dragana Grujić, Blanka Škipina, Mladen Stančić, Đorđe Vujčić e Miroslav Dragić. "Enhancement of macro-uniformity of copper(I) oxide printed linen fabrics by addition of Pinus sylvestris L. plant extract". In 11th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design, 2022. http://dx.doi.org/10.24867/grid-2022-p83.

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High surface texture of textile materials is rougher than other printing substrates which can cause excessive macro non-uniformity. Adding metal oxides into the ink to enhance material properties usually add to surface roughness and increase print mottle. In this paper copper(I)oxide particles and different amounts of Pinus sylvestris L. plant extract were added to modified alginate paste (CHT-NV) prior to printing. The aim of this paper is to inspect the influence of added metal oxide and plant extract on the print quality of linen based material via surface macro non-uniformity GLCM determination method. In the pattern recognition phase, the co-occurrence matrix is applied to calculate the texture characteristics, such as contrast, correlation, energy, entropy and homogeneity. The research results indicated that the metal oxide particles have had a negative influence on macro uniformity of printed linen. Increasing of the concentration of extract leads to a dilution of the printing paste, and thus to a greater penetration of copper ions between the threads of the fabric, as well as into the yarn itself.

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