Inkjet printing technology is widely used in the textile digital printing application today though the current technology still requires pretreatment and postwashing procedures before and after printing. Additional chemical treatment generates a large amount of wastewater and complicates the process. Among the many potential approaches for reducing chemical waste, pigments with self-dispersing capability were prepared and formulated into binder-free inkjet inks that require no pretreatment or after-washing process when printing cotton fabrics. The new self-dispersing pigment inks were tested and evaluated on cotton fabrics. The distribution of particles was between 122.2 and 188.5 nm, and inks have excellent storage capability. Printed fabrics' light fastness and acid/alkali resistance are about grade 5, and printed cotton's washing and rubbing fastness are above grade 3. The mechanism and performance of ink drops were investigated by LF-NMR and ink-drop observation methods. This work provides a possible solution for reducing wastewater in the textile industry.
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http://dx.doi.org/10.1021/acs.langmuir.3c00573 | DOI Listing |
Inorg Chem
January 2025
Bordeaux INP, ICMCB, UMR 5026, Université de Bordeaux, CNRS, F-33600 Pessac, France.
LiCoPO and LiNiPO phosphate pigments have colorations very close to the primary colors of the subtractive system: magenta and yellow, respectively. These two pigments are therefore of great interest in a variety of applications, including e-reader devices. However, the need to reduce their crystallite size in order to formulate stable electrophoretic inks has revealed that aggressive milling results in significant color changes, particularly for cobalt-based pigments.
View Article and Find Full Text PDFArh Hig Rada Toksikol
December 2024
1University of Zagreb Faculty of Pharmacy and Biochemistry, Department of Medical Biochemistry and Haematology, Zagreb, Croatia.
Tattooing has become a popular global trend in industrialised countries, with the highest prevalence rates of up to 30-40 % in the adult population younger than 40 years. Common tattoo inks may contain heavy metals, polycyclic aromatic hydrocarbons, and primary aromatic amines, toxic if exceeding permissible limits. It is estimated that about 14.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
December 2024
Institute of Heritage Science, National Research Council (CNR ISPC), Via Cozzi 53, 20125 Milano, Italy. Electronic address:
The preservation of paper-based archival documents is crucial for safeguarding historical and cultural heritage. Some records possess visually inaccessible text or images because of previous conservation measures, their method of construction, or historic damage. Micro-spatially Offset Raman Spectroscopy (micro-SORS) has emerged as a promising method for probing below or through opaque material substrates non-invasively.
View Article and Find Full Text PDFMacromol Rapid Commun
December 2024
Institute of new structural materials, School of Materials Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Beijing, 100871, P. R. China.
The self-assembly of block copolymers (BCPs) into photonic materials has garnered increasing interest due to the versatility and ease of fabrication offered by the synthesized building blocks. BCPs are highly tunable, with their self-assembled structures' size being adjustable by modifying the block lengths, molecular weight(M), and polymer composition. This review provides a concise summary of the use of BCPs as photonic pigments, which generate color through structural manipulation rather than relying on chemical pigmentation.
View Article and Find Full Text PDFPolymers (Basel)
November 2024
Circular Resource Engineering and Management (CREM), Hamburg University of Technology (TUHH), Blohm Str. 15, 21079 Hamburg, Germany.
Printing inks, composed of binders, pigments, and additives, are essential components in plastic packaging but complicate recycling due to plastic contamination and degradation. While polyolefins are resistant to hydrolytic degradation, moisture generated from upstream cleaning processes, which is often ignored, can accelerate the degradation of ink binders, affecting the recyclate quality. This study has examined the impact of 3 wt.
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