scholarly journals Offset printing results analysis of different based inks in cardboard packaging production

2021 ◽  
Vol 23 (2) ◽  
pp. 88-93
Author(s):  
Osman Şimşeker

Abstract The main raw material of paper and cardboard used in packaging is cellulose. Cardboard packages made of cardboard, which can be produced in much different quality and weight, are obtained in numerous shapes and appearances 1, 2 . Paper and cardboard packaging are among the most economical packaging types. Using less raw materials, more durable but thin, light, economical cardboard is produced 2, 3 . In this study, under equal printing conditions, test prints were made on cardboard substrates (for cardboard packaging) with mineral oil based, vegetable oil (soy oil) based and UV cured inks used for the printing of the same images. After these prints, the properties of mineral oil, vegetable oil and UV ink; the effect on the print results was measured from different ways (Chroma*, Print density, unprinted surface Gloss 75°, Print Gloss 60°). At the same time, the visual differences between the print results were determined by the optical imaging (SEM) method and were examined by the elemental analysis method.

Polymers ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 206
Author(s):  
Bianca Lok ◽  
Gunnar Mueller ◽  
Johannes Ganster ◽  
Jens Erdmann ◽  
Andrea Buettner ◽  
...  

The still-rising global demand for plastics warrants the substitution of non-renewable mineral oil-based resources with natural products as a decisive step towards sustainability. Lignin is one of the most abundant natural polymers and represents an ideal but hitherto highly underutilized raw material to replace petroleum-based resources. In particular, the use of lignin composites, especially polyolefin–lignin blends, is currently on the rise. In addition to specific mechanical property requirements, a challenge of implementing these alternative polymers is their heavy odor load. This is especially relevant for lignin, which exhibits an intrinsic odor that limits its use as an ingredient in blends intended for high quality applications. The present study addressed this issue by undertaking a systematic evaluation of the odor properties and constituent odorants of commercially available lignins and related high-density polyethylene (HDPE) blends. The potent odors of the investigated samples could be attributed to the presence of 71 individual odorous constituents that originated primarily from the structurally complex lignin. The majority of them was assignable to six main substance classes: carboxylic acids, aldehydes, phenols, furan compounds, alkylated 2-cyclopenten-1-ones, and sulfur compounds. The odors were strongly related to both the lignin raw materials and the different processes of their extraction, while the production of the blends had a lower but also significant influence. Especially the investigated soda lignin with hay- and honey-like odors was highly different in its odorant composition compared to lignins resulting from the sulfurous kraft process predominantly characterized by smoky and burnt odors. These observations highlight the importance of sufficient purification of the lignin raw material and the need for odor abatement procedures during the compounding process. The molecular elucidation of the odorants causing the strong odor represents an important procedure to develop odor reduction strategies.


2019 ◽  
Vol 1 (2) ◽  
pp. 415-423
Author(s):  
Elia Rahayu R ◽  
Nor Norisanti ◽  
Acep Samsudin

The purpose of this study is to control the supply of raw materials using the Economic Order Quantity (EOQ) method in Tahu Nugraha Jaya Sukabumi UKM. The data analysis method used is quantitative descriptive to describe and describe the data to be examined and then processed using EOQ. This study uses the EOQ method to determine the total inventory cost. The data needed in this study are the number of purchases of raw materials, the amount of use of raw materials, storage costs, and ordering costs. The results of this study indicate that by applying the EOQ method can further optimize the supply of raw materials by minimizing raw materials with increased inventory. With the application of the Economic Order Quantity (EOQ) method it shows more efficient than conventional methods of the company. Conclusions, seen from the difference in the TIC of the two methods, the more efficient method is the Economic Order Quantity (EOQ) method that is equal to 244,392.94 while the calculation used by the company is 374,325. so that it can be obtained that there is a difference between the Company TIC and the EIC method TIC. Keywords: Raw Material Inventory, Production Process


2014 ◽  
Vol 25 (2) ◽  
pp. 81-84
Author(s):  
Doinita Roxana Cioroiu ◽  
Claudia Irina Koncsag

Abstract According to previous studies on the pyrolysis of vegetable oils, it resulted that the thermal cracking process is prone to produce large yields of ethylene, propylene, hydrogen and methane, comparable with the gas proceeding from the steam cracking of naphtha, but at much lower process temperature, this ensuring important energy savings. The studies are performed on very different raw materials and different reaction conditions, that being why at this moment it is very difficult to predict the products yield. This paper uses an analytical semiempirical model (ASEM) developed at the University of Florida, by applying it to a different raw material. The ASEM model fits very well to our experimental data, obtained at higher temperature but some parameters have to be adjusted. In the end we confirm a set of systemic parameters to be used for the prediction of main products yield proceeding from vegetable oil in an extended range of temperatures.


Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1356
Author(s):  
Attila Egedy ◽  
Alex Kummer ◽  
Sébastien Leveneur ◽  
Tamás Varga ◽  
Tibor Chován

Fossil materials are widely used raw materials in polymerization processes; hence, in many cases, the primary goal of green and sustainable technologies is to replace them with renewables. An exciting and promising technology from this aspect is the isocyanate-free polyurethane production using vegetable oil as a raw material. Functional compounds can be formed by the epoxidation of vegetable oils in three reaction steps: epoxidation, carbonation, and aminolysis. In the case of vegetable oil carbonation, the material properties vary strongly, with the composition affecting the solubility of CO2 in the reaction mixture. Many attempts have been made to model these interactions, but they generally do not account for the changes in the material properties in terms of spatial coordinates. A 2D CFD model based on the combination of the k-ε turbulence model and component mass balances considering the spatial inhomogeneities on the performance of the reactor was created. After the evaluation of the mesh independence study, the simulator was used to calculate the carbonation reaction in a transient analysis with spatial coordinate-dependent density and viscosity changes. The model parameters (height-dependent mass transfer parameters and boundary flux parameters) were identified based on one physical experiment, and a set of 15 experiments were used for model validation. With the validated model, the optimal operating temperature, pressure, and catalyst concentration was proposed.


Author(s):  
Nadezhda Leonidovna Kornienko ◽  
Larisa Borisovna Guseva

Technology of baked diet pates from Far Eastern fishes was developed in the laboratories of the Institute of Food Production of the FSBEI HE "Dalrybvtuz". The purpose of the work was to develop the technology of dietary baked fish pates, providing an expansion of the assortment of finished products and rational use of secondary fish raw material of saffron cod and rudd. The new technology provides substituting vegetable oil by fish broths from secondary raw materials in the recipe for baked general-purpose fish pates made of saffron cod and rudd. Functional and technological properties of broths were studied depending on the duty of water (from 0.5 to 2.0) with a continuous cooking time of 60 minutes. The influence of the duty of water and the duration of broth cooking on their organoleptic properties was studied. It is established that the increase in duty of water from 0.5 to 1.0-1.5 is accompanied by a decrease in the content of dry matter in the broth, curves of kinematic viscosity and surface tension of broths have a similar dynamics, which indicates a direct-proportional relationship between the colloid properties of broths and the content in them of dry substances. It is shown that the duration of cooking has a priority over the duty of water effect on the organoleptic properties of fish broths. As a result of the research, the optimal technological parameters for the production of baked dietary pates were established: duty of water - 0.5 (for saffron cod) and 1.5 (for reddish); the broth cooking time is 60 minutes; temperature during cooking broth 100°C; mass fraction of broth in the formulation of the finished product 35%, vegetable oil 0%. In the course of study of the quality of pastes made using the developed technology it was stated that the calorie content of diet pates is lower than that of general pates by 57.2% for saffron cod and 64.9% for rudd; while maintaining a high level of organoleptic properties and relative biological value of finished products in relation to the basic version - general pates.


2021 ◽  
Vol 15 (1) ◽  
pp. 1
Author(s):  
Okta Amelia ◽  
Illah Sailah ◽  
Ika Amalia Kartika ◽  
Ono Suparno ◽  
Yazid Bindar

The alkyd resin industry currently needs environmentally friendly raw materials, which emphasized the aspect of sustainability. Alkyd resin is a polymer product with oil as raw material which is widely used in the paint, coating, and other industries. The abundant demand for alkyd resin has led to a diversification of the raw material for alkyd resin from vegetable oils. The advantages of vegetable oil include being a renewable energy source for industry, sustainability, biodegradability, and being environmentally friendly as important considerations for the industry in recent times. This paper examines alkyd resins derived from several vegetable oils that are environmentally friendly. Alkyd resin is prepared by alcoholysis and esterification. Based on several studies of alkyd resins, there have been many modifications to the raw materials, technology, and catalysts used which can refer to an environmentally friendly and affordable industry.Keywords: alkyd resin; biodegradability; environmentally friendly; sustainability; vegetable oilA B S T R A KIndustri polimer pada masa ini membutuhkan bahan baku yang ramah lingkungan, yang menekankan pada keberlanjutan. Alkid resin adalah salah satu produk berbasis minyak yang banyak digunakan dalam industri cat, coating, dan industri lainnya. Keberlanjutan, biodegradabilitas, dan keramahan terhadap lingkungan menjadi pertimbangan signifikan bagi industri berbasis minyak nabati dalam beberapa waktu terakhir. Di dalam naskah ini, diulas beberapa minyak nabati yang digunakan untuk memproduksi alkid resin dengan cara alkoholisis dan esterifikasi. Berdasarkan berbagai studi yang telah dilakukan, masih terdapat modifikasi dari sisi material, teknologi dan katalis agar tercipta industri yang ramah lingkungan.Kata kunci: alkid resin; biodegradabilitas; keberlanjutan; minyak nabati; ramah lingkungan


Author(s):  
Candrianto Candrianto ◽  
Radna Ningsih ◽  
Alpon Satrianto ◽  
Rizki Fadhillah Lubis

This research was conducted at PT. XYZ in the garden section, a company engaged in the forestry sector of industrial plants and products that produce HVS paper (such as paper one, otc), paperboard, kiky books, tissue (teas). PT.XYZ manages raw materials that are not in accordance with the target, the purpose of this study is to determine the amount of workload and the number of workers in the garden section at PT. XYZ. To collect the data needed in this study, data collection techniques were used through direct observation of the object under study, interviews and various other reference sources. Data analysis using the Workload Analysis method. From the results of calculations using the method, workload is one aspect that must be considered by every company, and workload must be considered for a worker to get harmony and high work productivity. By using the Workload Analysis method and to find out how much the optimal number of workers is in the raw material section. After analyzing the data using this analysis, it can be obtained that the average workload on the raw material section is 184.39%, which means that the workload is excessive. In order for the workload of each workforce in the garden to be optimal, it is advisable to increase the workload with an average workload of 92.19% so that effectiveness can be achieved.


Author(s):  
Qisthy Arinal Haq ◽  
Eliana Wulandari

The number of potato processors in Cikajang Sub-district Garut District is still relatively small, while Cikajang Sub-district Garut District is one of the production centers of potato commodities, which means the availability of abundant raw materials and has potential to be processed into other products to create added value. This problem can be caused by lack of information regarding the amount of added value that can be obtained from the processing. Therefore, the purpose of this study is to analyze the business efficiency and added value of potato processing. This study uses a quantitative research design with a questionnaire as a research instrument to 11 potato processors in Cikajang Sub-district, Garut District using the census method in September – November 2019. Data sources used are primary and secondary data. The data collected was processed using the business efficiency analysis method (RC ratio) and Hayami method. The results showed that the efficiency of processing potatoes into potato chips in Cikajang Sub-district was 1.8 and the added value obtained was Rp 10,647.4 / kg of potato raw material with a value-added ratio of 48.04%.


2007 ◽  
Vol 56 (12) ◽  
pp. 623-628 ◽  
Author(s):  
Ananda Sankar Roy ◽  
Moumita Bhattacharjee ◽  
Rabindranath Mondal ◽  
Santinath Ghosh

2016 ◽  
Vol 111 ◽  
pp. 13-34 ◽  
Author(s):  
Tristan Carter

This paper details the characterisation of four obsidian artefacts from the Mesolithic site of Livari Skiadi, one of only a handful of such pre-Neolithic sites on Crete. Elemental analysis using EDXRF sources the raw materials to Sta Nychia on Melos; in concert with other data, it can be suggested that this was the preferred Melian source for Late Pleistocene – Early Holocene populations. The Livari material represents the earliest Melian obsidian on Crete and by implication the first evidence of its inhabitants' connections to the Cycladic islands. When located within a broader review of Melian obsidian use in the Upper Palaeolithic – Mesolithic Aegean, it can be shown that the main consumers of these raw materials were island-based groups with immediate access to waterways that led to the Cyclades. It is suggested that distinctions between island and mainland toolkits (technical and raw material choices) may have been the product of seasonal, and environmental influences, rather than reflecting the products of different populations. Finally, certain datasets, including Livari, suggest the procurement of obsidian via intermediaries. These exchanges are viewed in avowedly social terms, with gift-giving a fundamental manner through which inter-group relations were created and maintained, whereby the circulation of obsidian can be viewed as one of those mechanisms through which Mesolithic Aegean cultural traditions came to be produced and reproduced.


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