Digital printing of mortar in carrier liquid: comparison of approaches to predict print stability

2021 ◽  
Vol 54 (3) ◽  
Author(s):  
Abdeslam Benamara ◽  
Alexandre Pierre ◽  
Abdelhak Kaci ◽  
Yannick Melinge
Author(s):  
M.D. Bentzon ◽  
J. v. Wonterghem ◽  
A. Thölén

We report on the oxidation of a magnetic fluid. The oxidation results in magnetic super lattice crystals. The “atoms” are hematite (α-Fe2O3) particles with a diameter ø = 6.9 nm and they are covered with a 1-2 nm thick layer of surfactant molecules.Magnetic fluids are homogeneous suspensions of small magnetic particles in a carrier liquid. To prevent agglomeration, the particles are coated with surfactant molecules. The magnetic fluid studied in this work was produced by thermal decomposition of Fe(CO)5 in Declin (carrier liquid) in the presence of oleic acid (surfactant). The magnetic particles consist of an amorphous iron-carbon alloy. For TEM investigation a droplet of the fluid was added to benzine and a carbon film on a copper net was immersed. When exposed to air the sample starts burning. The oxidation and electron irradiation transform the magnetic particles into hematite (α-Fe2O3) particles with a median diameter ø = 6.9 nm.


2020 ◽  
Vol 3 (2) ◽  
pp. 36
Author(s):  
Nurhadi ◽  
Fathur Rohman ◽  
Sugeng Hadi ◽  
Asrori
Keyword(s):  

Tidak adanya nama jalan di lingkungan wilayah tempat tinggal menyebabkan warga RT 04-05 RW 16 Desa Ngenep, Kecamatan Karangploso, Kabupaten Malang kesulitan menemukan alamat tertentu. Kegiatan Pengabdian kepada Masyarakat (PkM) ini bertujuan untuk mendesain, membuat dan memasang Peta Situasi Wilayah di Desa Ngenep, Kecamatan Karangploso, Kabupaten Malang. Kegiatan dilaksanakan di RT 04-05 RW 16 Perumahan Tirtasani cluster Park Royal, mulai tanggal 24 April sampai 09 Nopember 2018. Metode PkM yang digunakan yaitu mendesain, membuat dan memasang Papan Peta Situasi Wilayah.  Rangka Peta Situasi didesain terbuat dari besi profil kotak 4x6 cm dan 3x3 cm berukuran 3x2 m. Pengerjaan rangka meliputi pemotongan, pengelasan, penggerindaan, pengecatan dan riveting. Dasar papan peta dibuat dari bahan lembaran alumnium ukuran 2x2 meter, sedangkan peta yang menggambarkan alamat rumah warga didesain dengan software desain grafis corel draw dan dicetak dengan outdor digital printing. Banner Peta Situasi ditempelkan pada lembaran alumninium dengan perekat lem, dan difinishing dengan rivet. Peta Situasi dipasang didepan pintu masuk RT 04-05 RW 16 (sekitar Pos Satpam) dan Taman Tengah, ditanam dengan kedalaman ± 50 cm dan dicor semen. Hasil PkM menunjukkan bahwa pengadaan Peta Situasi sangat bermanfaat dan warga RT 04-05 RW 16 Desa Ngenep, Kecamatan Karangploso, Kabupaten Malang, dimana warga merasa puas karena memiliki infrastruktur lingkungan yang baik dan lebih mudah untuk menemukan alamat di wilayah tersebut. Kata kata kunci: Desain dan pembuatan, peta situasi, Ngenep. Karangploso


Author(s):  
Bo Peng

Today, with the increasingly rapid economic development and diversified consumer demands, the printing and publishing industry is also facing challenges and opportunities. Under this background, the emerging digital printing technology, which USES modern digital system to transmit graphic information to digital printing machine through network, has gradually become the core technical content of the printing field. Based on the emergence and characteristics of digital printing, this paper focuses on the application of digital printing technology in packaging printing, and predicts the future development trend of digital printing technology, hoping to help readers understand the knowledge of digital printing technology.


2012 ◽  
Vol 182-183 ◽  
pp. 365-368
Author(s):  
Wei Feng Jing ◽  
Wen Yan Jiang

Digital printing has been playing a more and more important role in printing industry for its convenient production and quick turnaround. By experimental method, the differences of digital prints with different paper were detail analyzed, includes different base weight papers of the same category, and different categories papers with the same base weight. Results showed that the printing quality of offset paper with 120 g/m2base weight was better than that of 100 g/m2, and that printing quality of art paper was better than matt art paper with the same base weight. Other characteristics of different papers were investigated too. The method and conclusion provides in this paper would be helpful for choosing appropriate material for production activities.


2012 ◽  
Vol 236-237 ◽  
pp. 839-843
Author(s):  
Xiao Meng Cui ◽  
Guang Xue Chen ◽  
Huan Mei Wang ◽  
Lin Lin Chen

In this study we present a new framework to assess line micro quality of multicolor prints adapted to a low-cost image quality analysis system based on common flatbed scanner. The contribution elements including quality metrics, measurement principle, applying methods and detection instrument, which were complemented and sorted in terms of ISO 13660 standard, were described and a case experiment was conducted to survey the output performance of both inkjet printer and xerographic printer, two most popular digital printing technologies. Their qualities were compared in details rendering angle such as width and straightness of line, raggedness and blurriness in line edges, as well as darkness and contrast in color. The results verify the efficiency and shortcomings of the framework. Meanwhile, the metric values let us take an investigation in the character of each digital printing technology in micron size.


2011 ◽  
Vol 214 ◽  
pp. 240-244
Author(s):  
Yi Nong Yan ◽  
Xiang Ru Zhang ◽  
Dan Li ◽  
Jian Jian Xu

Pretreatment solution which was obtained by many experiments who had a good printing effect was used to do the digital printing experiment on the cashmere fabric. Printing performance of the cashmere fabric in different pH value was compared to improve the printing quality of the cashmere fabric. Digital printing experiments in the alkaline environment were carried out for the first time and the best pH value was found out which could ensure dye uptake, color fastness, anti-seepage property and minimal damage to cashmere fabric. The paper provided basic reference to the actual production.


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