Researchers create rollerball-pen ink to draw circuits

(PhysOrg.com) -- Two professors from the University of Illinois; one specializing in materials science, the other in electrical engineering, have combined their talents to take the idea of printing circuits onto non-standard ...

Coffee-ring phenomenon explained in new theory

The formation of a simple coffee stain has been the subject of complex study for decades, though it turns out that there remain some stones still to be turned. Researchers at the University of Nevada, Reno have modeled how ...

An improved ink for colon tattoos

The colon might be the last place people would consider getting a tattoo, but endoscopic tattooing is an important medical technique for marking colorectal lesions for surgery or follow-up. Today, scientists report a next-generation ...

The next generation of E-ink may be on cloth (w/ video)

(PhysOrg.com) -- Most people have become familiar with E-ink through e-readers. Devices, such as the Amazon Kindle and the Nook, have brought a less limited version of the bookstore to the reader. E-ink technology works by ...

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Ink

Ink is a liquid or paste that contains pigments and/or dyes and is used to color a surface to produce an image, text, or design. Ink is used for drawing and/or writing with a pen, brush, or quill. Thicker inks, in paste form, are used extensively in letterpress and lithographic printing.

Ink can be a complex medium, composed of solvents, pigments, dyes, resins, lubricants, solubilizers, surfactants, particulate matter, fluorescers, and other materials. The components of inks serve many purposes; the ink’s carrier, colorants, and other additives control flow and thickness of the ink and its appearance when dry.

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