nanoink (rus. наночернила otherwise чернила для струйной микропечати) — a colloidal solution of nanoparticles in a disperse medium (suspension) used for production of nanostructured coatings with specific topology and functional characteristics.

Description

Nanoink includes a variety of components, each with a specific function. The most critical nanoink components are as follows:

-nanodisperse particles that define the key functional characteristics of the final product, such as conductivity, luminescence, absorption of waves of a certain length, or magnetism;

-dispersion medium – a “solvent” for ultradisperse particles;

-surfactants used to improve the stability of suspensions and, therefore, increase the shelf life of the nanoink and the wettability of the substrate surface by the ink;

-preservatives that prevent bacteria growth, especially in the case of long storage;

-special additive that makes it possible to control the rheological properties of the ink and reduce their drying rate after exposure to air (e.g., in the jets of a print head).

The performance parameters of the printing equipment in which the ink can be used are critical for the nanoink. As a result, these nanosystems are specially developed for a certain print head design with a specific size of nozzles and other parameters.

Used in inkjet printing, nanoink allows the size of an ink drop to be reduced, thus increasing printing resolution, extending ink storage time by increasing the stability of suspensions, and reducing the weight content of the colouring agent due to the higher specific intensity of light scattering. As a result of increasing the resolution of inkjet printing due to the use of nanoink, inkjet techniques are being more widely used in electronics for the production of circuit boards, biochips, etc.

Authors

  • Shlyakhtin Oleg A.
  • Goldt Anastasia E.

Sources

  1. UV-ink Sunflower NANOINK (in Russian) // Informacionnyjj portal RusNanoNet.ru: tovary, produkty, razrabotki i novinki nanotekhnologijj. — www.rusnanonet.ru/goods/22124/
  2. Wallace D. Ink-jet based fluid microdispensing for high-troughput drug discovery // MicroFab Technologies, Inc., 2005. —www.microfab.com/about/papers/chibook/chi_book.htm
  3. Inkjet Research Centre // University of Cambridge. —www.ifm.eng.cam.ac.uk/pp/inkjet/

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