Synthesis, characterization and ultrafiltration of reactive dyes. Application by exhaustion and/or ink-jet printing—II

2016 ◽  
Vol 87 (6) ◽  
pp. 694-707 ◽  
Author(s):  
Smaro Lykidou ◽  
Evangelos Karanikas ◽  
Nikolaos Nikolaidis ◽  
Eforia Tsatsaroni
Keyword(s):  
Reactive Dyes ◽  
Ultra Violet ◽  
Optical Emission ◽  
Disulfonic Acid ◽  
Fastness Properties ◽  
Light Fastness ◽  
Ink Jet ◽  
Metallic Salts ◽  
Before And After ◽  
Jet Printing

Three novel vinyl sulfone reactive dyes of various metallic salts (Na, K, Li) have been synthesized by coupling 1-amino-phenyl-4-beta hydroxyethyl sulfone sulfate ester with 1-amino-8-hydroxynaphthalene-3,6-disulfonic acid (H-acid). The reactive dyes were then purified using ultrafiltration (UF). The ultrafiltrated dyes of the various metallic salts were characterized by their spectrophotometrical data using Ultra Violet-visible (UV-vis), Fourier transform infra-red and optical emission spectroscopy, X-ray diffraction, and elemental analysis. The purity of the dyes was checked by Thin Layer Chromatography (TLC). The solubility characteristics of the various salts of the ultrafiltrated reactive dyes were assessed and compared with the non-ultrafiltrated reactive dyes of the same salts. The dyes were characterized and applied to cotton, wool, and nylon 66 by exhaustion (dyeing). Novel water-based reactive ink-jet inks were prepared with the ultrafiltrated reactive dyes of the various metallic salts. Their suitability for digital printing applications was examined by using a digital printer on suitably pretreated cotton samples. Color and fastness properties measurements were performed for both the dyed and digitally printed samples. K/S values of the dyed samples were higher than those of the digitally printed ones, whereas K/S values of the samples dyed with the ultrafiltrated dyes were much higher than those of the non-ultrafiltrated dyes. The other coloristic co-ordinates L*, a*, b*, C*, and ho were in line with strength changes of the dyes before and after UF. The dyed and digitally printed samples had excellent wash and good light fastness properties. UF slightly improved the fastness properties of the dyed samples.

Azo reactive dyes: ultrafiltration and application to cotton by exhaustion and digital ink-jet printing

2015 ◽  
Vol 86 (8) ◽  
pp. 823-836 ◽  
Author(s):  
Smaro Lykidou ◽  
Evangelos Karanikas ◽  
Nikolaos Nikolaidis ◽  
Eforia Tsatsaroni
Keyword(s):  
Reactive Dyes ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing ◽  
Digital Ink

scholarly journals Lyocell Fabric Dyed with Natural Dye Extracted from Marigold Flower Using Metallic Salts

2020 ◽  
Vol 20 (3) ◽  
pp. 352-358
Author(s):  
Sayed Yaseen Rashdi ◽  
Tayyab Naveed ◽  
Noor Sanbhal ◽  
Sikandar Almani ◽  
Peng Lin ◽  
...  
Keyword(s):  
Soxhlet Extraction ◽  
Natural Dye ◽  
Light Fastness ◽  
Environmental Friendliness ◽  
Significant Difference ◽  
Metallic Salts ◽  
Before And After ◽  
Soxhlet Extraction Apparatus ◽  
Different Color ◽  
Shade Depth

AbstractThe application of natural dyes is increasing each year due to their environmental friendliness and easy application on cellulose fibers. In this study, the natural dye from the Mexican marigold flower was extracted using a Soxhlet extraction apparatus. The extracted natural dye was applied on lyocell fabric with five different metallic salts using pre-mordanting and post-mordanting methods. It was observed that different color shade depth was achieved with different fixing agents. The color shade depth (K/S) washing fastness, light fastness, rubbing fastness, perspiration, and Fourier transform infrared (FTIR) test results of all dyed samples were excellent in both pre- and post-mordanting methods. There was no significant difference in the results between post- and pre-mordanting fixation methods. However, the results showed that mordant ferrous sulfate had higher K/S value as compared to all other mordants. The dye extracted from marigold flower showed good dyeing efficiency with mordant to excellent colorfastness tests. FTIR results showed that there was no structural change in lyocell fabrics, before and after dyeing processes. Thus, a natural dye extracted from marigold flower has shown good colorfastness properties without damaging its fiber structure.

Ink-Jet Printing of Wool/Acrylic Blend Fabrics with Cationic Reactive Dyes

2021 ◽  
Author(s):  
Hang Xiao ◽  
Qiangbing Yu ◽  
Jiang Tu ◽  
Meihui Wang ◽  
Omer Kamal Alebeid ◽  
...  
Keyword(s):  
Reactive Dyes ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing

scholarly journals Automated 3D Mass Digitization for the GLAM Sector

2020 ◽  
Vol 2020 (1) ◽  
pp. 55-59
Author(s):  
Pedro Santos ◽  
Reimar Tausch ◽  
Matevz Domajnko ◽  
Martin Ritz ◽  
Martin Knuth ◽  
...  
Keyword(s):  
Minimum Mean Square Error ◽  
Test Chamber ◽  
Print Quality ◽  
Ocean Optics ◽  
Fastness Properties ◽  
Light Fastness ◽  
Spectral Curves ◽  
Before And After ◽  
Long Time ◽  
Fading Rate

The lightfastness of prints is an extremely important characteristic for assessing their print stability. The fastness properties of prints can be described in terms of print durability and image stability. Good lightfastness assures the good print stability after long use. This study has focused to describe the lightfastness of printed foil samples due to long time exposure. It may also be used for the authenticity or validity of the product. Moreover, any kind of deterioration in package print quality will affect the sale value of the product adversely. Little work has been done to study the fastness properties of printed films and foils. In this work, blister foils printed in the gravure printing process are taken as the sample as it has extensive usage in food and medicine packaging. The samples are exposed in artificial lightfastness tester BGD 865/A Bench Xenon Test Chamber (B-SUN) for assessing the light fastness of cyan, magenta, yellow and black ink on the foil. The spectral curves and colorimetric values of prints are measured in the ocean optics spectroradiometer (DH2000BAL) before and after exposure. An Artificial Neural Network model (ANN) is proposed to predict the fading rate of the printed foil. The optimal model gives excellent prediction with the minimum mean square error (MSE) for each color and a correlation coefficient of 0.98-0.99.

Ink-Jet Printing of Encapsulated Bacteria

2006 ◽  
Vol 921 ◽  
Author(s):  
Faith Marie Coldren ◽  
John B. McGuirt ◽  
Nicole Levi ◽  
Elizabeth Palavecino ◽  
David L. Carroll
Keyword(s):  
Colony Growth ◽  
Human Infection ◽  
Standard Laboratory ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Laboratory Cultures ◽  
Before And After ◽  
Jet Printing ◽  
Encapsulated Bacteria ◽  
Scanning Electron

AbstractEven though viability for printed bacteria has been demonstrated, the effect of thermal ink-jet printing on cellular ultrastructures is unknown. Retention of viability is useful when colony growth is desired. However, when bacteria are isolated from a human infection they often exhibit characteristics that can be lost when grown in standard laboratory cultures. Ideally, individual bacteria from an infection could be printed and studied without extensive culturing or processing.We have investigated the gram-positive organism Staphylococcus aureus and the extracellular polymeric ultrastructure that encapsulates the bacterial cell. The capsule is composed of cell-wall associated polysaccharides. Our goal was to use ink-jet printing to spatially control the placement of S. aureus, without affecting the extracellular ultrastructure. Observation by scanning electron microscopy comparing the integrity and uniformity of encapsulated S. aureus before and after thermal ink-jet printing suggests that the capsule is disrupted, possibly completely removed, during printing.

scholarly journals Eco-friendly route for dyeing of cotton fabric using three organic mordants in reactive dyes

2019 ◽  
Vol 70 (01) ◽  
pp. 25-29
Author(s):  
BAIG RIAZ ◽  
HUSSAIN DILSHAD ◽  
NAJAM-UL-HAQ MUHAMMAD ◽  
ABDUL WAQAR RAJPUT ◽  
AMJAD RANA
Keyword(s):  
Sodium Citrate ◽  
Color Change ◽  
Reactive Dyes ◽  
Potassium Acetate ◽  
Organic Salt ◽  
Fastness Properties ◽  
Light Fastness ◽  
Organic Salts ◽  
Salt Reduction ◽  
The Difference

The textile dyes and fixing agents that used in dyeing process are major contributor to environmental pollution. In the present study, three different organic mordants (Sodium Citrate, Ammonium Acetate, and Potassium Acetate) are used in exhaust dyeing as mordants. Effect of mordant concentrations is studied on fastness properties (color change, rubbing fastness & light fastness) of cotton dyed with reactive dyes using these organic mordants. Comparison of these mordants with conventional fixing agent (NaCl) is also studied in order to evaluate the difference between fastness properties of conventional and organic salts used in this study. We found that the color fastness properties of conventional and organic salts are comparable, better in case of sodium citrate. Similarly color depth on fabric after dyeing with organic as well as inorganic salts is measured using data color. Results confirm that higher values of K/S are obtained for organic salts by using lower organic salt concentration compared to conventional salt. Reduction in total dissolved solids (TDS) of dye effluents is obtained from 6% to 29% for three organic salts as compared to conventional salt.

Synthesis, characterization and ultrafiltration of reactive dyes. Application by exhaustion and/or ink-jet printing. IV.

2017 ◽  
Vol 18 (9) ◽  
pp. 1697-1707 ◽  
Author(s):  
Smaro Lykidou ◽  
Evangelos Karanikas ◽  
Ioannis Tsagalias ◽  
Nikolaos Nikolaidis ◽  
Eforia Tsatsaroni
Keyword(s):  
Reactive Dyes ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing

Study on the Color Rendering Effect of High Glossy Color Inkjet Paper

2013 ◽  
Vol 469 ◽  
pp. 286-291
Author(s):  
Zhan Jun Si ◽  
Yu Li
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Subjective Evaluation ◽  
Test Method ◽  
Light Fastness ◽  
Paper Properties ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing ◽  
Color Rendering

The material for ink-jet printing is very extensive, but now paper media is the most commonly used one, because the image of glossy ink jet paper printed clear and bright, shiny, light fastness and excellent color fastness in the aspects of indoor display packaging. Therefore, this paper combined the traditional test method and modern computer image analysis technology together, to formation the evaluation system of color rendering performance on a suitable color ink jet paper, in order to qualitative and quantitative evaluate to paper printing color rendering.This paper mainly used six kinds of different brands glossy inkjet paper as the pattern and carries on the experiment measurement and objective visual subjective evaluation. Subjective evaluation aspect, choose a certain number standard observer to do subjective quality evaluation. Objective evaluation aspect, using the experiment testing paper properties, through test the paper print image macro and micro color reference which on the different brand color ink-jet printing paper, and add the analyze the effects of combined with the basic properties of different paper color rendering of ink-jet paper, to ensure comprehensive and objective reflect the effect of color rendering.Through the above methods, qualitatively and quantitatively evaluate of the different paper pattern of the color rendering performance, it would be provide reference and evaluation method for glossy inkjet paper in the research of color rendering effect.

UV ink-jet printed braille: a review on the state of the art

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Đorđe Vujčić ◽  
Nemanja Kašiković ◽  
Mladen Stančić ◽  
Igor Majnarić ◽  
Dragoljub Novaković
Keyword(s):  
Significant Role ◽  
Design Methodology ◽  
Ultra Violet ◽  
Operating Conditions ◽  
Content Type ◽  
Visually Impaired People ◽  
Ink Jet ◽  
Printing Technique ◽  
Jet Printing

Purpose This paper aims to highlight the importance of braille for visually impaired people and the possibility of printing it by using the ultra-violet (UV) inkjet printing technique. Design/methodology/approach The vision impairment, definitions and statistics, as well as braille letter and standards, are first reviewed. Then, the methods of printing braille have been discussed, with a focus on UV ink-jet printing. Finally, this study indicates a significant role of UV ink-jet printed Braille, its possibilities and its advantages. Findings Research studies in the field of UV ink-jet printed braille are showing that it is possible to print good legible braille of the adequate height of dots. This paper highlights some advantages of printing braille with UV ink-jet, like the possibility of achieving greater dot height than embossing and no need for printing form. Printing of additional elements on top of braille dot has also been tested, and possible use for differentiation of the written notation is shown. This paper also indicates the importance of technological and operating conditions in UV inkjet braille printing. It predicts a significant role of UV inkjet in braille printing. Originality/value This paper provides a detailed review of UV ink-jet printed braille: possibilities, advantages and application.

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