Investigation of the effect of light fastness on the color changes of maps prepared by electrophotographic digital printing

In this study the prints were made on paper substrates, which were thought as map substrate alternatives, with 3 different surface properties at 1200 dpi by using the electrophotographic printing system. Color and gloss values of the samples were determined both before and after exposure to light for a period of 42 hours to determine the light fastness of the substrate and the print on it. The studies revealed that after the light fastness tests (i) the width of the color universe of the papers with matte surfaces is more than that of the papers with glossy surfaces, (ii) the loss of brightness of woodfree paper is higher than that of the other paper samples and (iii) the print chroma values obtained in woodfree paper is lower than those of the coated surfaces. Moreover, (iv) the delta E 00 {E_{00}} measurements revealed that all paper samples experienced different color losses in different colors, and the most significant differences in these color losses were in magenta and black.

The Impact of 3D Coordinate Technology Using Nanomaterials on Architecture Engineering Industry

Coordinate technologies play an important role in many industrial applications, especially for eco nanobuildings and spaces. Lately, the global new architecture seems to be more automated as appeared in the parametric architecture, topological, animate, metamorphic, and isomorphic and per formative architecture. They all depend on the visualization, the high precision techniques, and the 4th dimension all within sustainability. But till now, there is no main environmental space code, unit or standards to deal with to insure that the environmental design became in a form of an easier one to be the design of the era as all the global calls aware us to preserve the nature from pollution. Mainly within the call for the nanotechnology, if there is found a least architectural volumetric unit which can fulfill all the environmental sustainable systems within the visionary and the 4th dimensional acts, then we can act with the environment with easier spaces that can be duplicated in a uniform way, to work easily for measure and estimate the budget of his supposed built space. Therefore, the main liable issue concerns the research for the least architectural volumetric unit, and we can call it the nanoarchitectural unit. As nanoarchitecture is a virtual and proposed kind of architecture, which the architects aim to create it or follow it the nanotechnology to insure that the 3D technology is to submit as an application in all branches of science, to achieve a dream of the present-day from sustainability and environment for future generations. Accordingly, recent studies have confirmed that 3D coordinate technology using digital printing has an important subtle impact on industry, especially for green buildings and spaces.

A precise method of color space conversion in the digital printing process based on PSO-DBN

Neural networks have been widely used in color space conversion in the digital printing process. The shallow neural network easily obtains the local optimal solution when establishing multi-dimensional nonlinear mapping. In this paper, an improved high-precision deep belief network (DBN) algorithm is proposed to achieve the color space conversion from CMYK to L*a*b*. First, the PANTONE TCX color card is used as sample data, in which the CMYK value of the color block is used as input and the L*a*b* value is used as output; then, the conversion model from CMYK to L*a*b* color space is established by using DBN. To obtain better weight and threshold, DBN is optimized by a particle swarm optimization algorithm. Experimental results show that the proposed method has the highest conversion accuracy compared with Back Propagation Neural Network, Generalized Regression Neural Network, and traditional DBN color space conversion methods. It can also adapt to the actual production demand of color management in digital printing.

SOSIALISASI DAN PELATIHAN PENGGUNAAN MESIN CETAK DIGITAL PRINTING SEBAGAI PENUNJANG KETERAMPILAN HARD SKILL BAGI SISWA SMK PERGURUAN LAKSAMANA MARTADINATA MEDAN

Pelatihan dalam rangka kegiatan Pengabdian Pada Masyarakat ini bertujuan untuk memberikan bekal ilmu pengetahuan dan teknologi tentang bagaimana menggunakan mesin cetak digital printing. Mesin cetak yang digunakan adalah mesin cetak digital printing Fuji Xerox produksi Jepang. Peserta pelatihan merupakan siswa SMK Perguruan Laksamana Martadinata Medan. Pelaksanaan diawali dengan memberi materi sampai ke proses cetak . Materi diakhiri dengan memberikan tugas bagi masing-masing peserta untuk mencetak brosur secara mandiri. Dikarenakan PPKM darurat 4 di Kota Medan maka pihak sekolah hanya mengizinkan 5 orang siswa untuk mengikuti pelatihan tersebut. Dari peserta dengan jumlah 5 orang siswa, semuanya dapat mengikuti pelatihan dari awal sampai akhir yaitu dapat menyelesaikan tugas mandiri dengan baik, mampu mencetak brosur yang berkualitas. Metode yang digunakan dalam pelatihan ini antara lain metode demonstrasi yaitu peserta secara langsung praktek sesuai dengan keadaan yang sebenarnya mencetak brosur menggunakan mesin digital printing, program yang digunakan yaitu program Fiery 1,. Metode evaluasi dengan melihat perbedaan kualitas cetakan sebelum dan sesudah pelatihan. Hasilnya berupa keterampilan hardskill mencetak brosur dengan mesin digital printing yang sesuai dengan standar cetak brosur yaitu hasil cetak yang presisi.

Research on the law of reflection coefficient of reflective film of traffic sign based on Angle

In this paper, a large number of digital printing reflective film retroreflectivity measurement. Based on the multi-angle test of the reflective film of the mainstream manufacturers in the market, the reverse reflection coefficient of the digital printing reflective film was obtained. Through the curve fitting of the measured values of the backreflection coefficient under different measuring angles by using the scatter plot, the variation law of the luminosity of the digital printing reflective film with incident Angle and observation Angle was obtained. The variation law of backreflection coefficient explored in this paper has certain significance to the application guidance of digital printing reflective film for traffic signs.

In Depth Assessment on Digital Textile Printing Environment as the Concrete Path of Making Indonesia 4.0

Textile-garment industry in Indonesia has been established as the primary industry and economy that becoming fundamental to nation’s wealth. Well known as a top 5 of global market supplier, this industry predicted to keep score and improving their productivity to reach better position. In last 2019, Government of Indonesia already announced the roadmap plan of Indonesia 4.0, which put textile-garment industry as the one of priority industry that will be essentially adopting digital equipment and workflow to keep competitive and becoming the backbone of national industry alongside with other 4 industries mentioned. With this initiative being deployed and how the road map plan already announced, Author want to elaborate, assess and analyse how ready is digital adoption on textile-garment manufacturers, specifically on digital printing workflow. So on, this research will be titled “In Depth Assessment on Digital Textile Printing Environment as the Concrete Path of Making Indonesia 4.0”. The main purpose of this research is to give the clear picture of how ready textile-garment industry Indonesia to fulfil both of extensive demand from domestic and global market by adopting digital equipment, in this research digital textile printing. By elaborating all the considerations and factor, we are hoping that there would be identified root issues beneath of this industry and directly formulating the best approach and solution for this industry.

Profiling Digital Printing Technology Adoption in the Fashion Industry: A New Approach to Exploring Innovation Diffusion

Digital printing technology (DPT) represents a core innovation that is currently revolutionizing the global decorated apparel market by automating the printing process, facilitating customization, and reducing energy costs and production lead time. However, the fundamental understanding of the emerging DPT market remains unexplored due to its novelty. This study aims to identify DPT diffusion patterns over the past decade in the U.S. market and establish a predictive user profile employing social media-based analytics along with data mining and traditional statistical modeling. A proxy variable is used to measure likely adoption which reflects an S-shaped diffusion curve consistent with Diffusion of Innovations Theory. Additionally, the outcome profile suggests that likely DPT adopters reside in locations that reflect higher levels of education (bachelor’s degrees or higher), relatively young populations (i.e. between 19–34 years of age), proportionately higher incomes generated from art and design occupations, but with lower household annual incomes.

The Role of Motivation, Discipline, Salary, and Islamic Work Ethics on Increasing Employee Performance

This study aims to determine how strong the influence of motivation, discipline, salary, and IWE (Islamic Work Ethic) on employee performance (a case study at Wanabiprint Digital Printing Salatiga). The method of data collection was done through distributing questionnaires to Wanabiprint employees. Samples were taken as many as 50 respondents. The results of the t test indicate that motivation has no effect on employee performance with a significance value of 0.305 > 0.05 and t count 1.038 < t table 2.014, discipline has no effect on employee performance with a significance value of 0.158 > 0.05 and t count 1.437 < t table 2.014, salary has no effect on employee performance with a significance value of 0.775 > 0.05 and t count 0.287 < t table 2.014, while IWE (Islamic Work Ethic) affects employee performance with a significance value of 0.00 < 0.05 and t count 4,580 > ttable 2,014. Furthermore, motivation, discipline, salary and IWE (Islamic Work Ethic) have a simultaneous effect on employee performance with a significance value of 0.000 < 0.05 and an f value of 18.050 > f table 2.57 on employee performance. So that these variables have an effect simultaneously.