Zink (technology)

Zink (stylised as ZINK), a portmanteau of "Zero INK," is a full-color printing technology[1] for digital devices that does not require ink cartridges and prints in a single pass.[2] The printing technology and its thermal paper are developed by Zink Holdings LLC, a U.S. company, with offices in Edison, New Jersey, and Billerica, Massachusetts, and a manufacturing facility in Whitsett, North Carolina. Zink Holdings makes all the paper;[2] makes a printer for printing labels and other designs on rolls of Zink zRoll; and licenses its technology to other companies that make compact photo printers, and combined camera / compact photo printers that print photographs onto mostly 2×3” (about 5×8 cm) sheets of Zink Paper. Key licensees include HP, Lifeprint, Prynt, and C&A Global.

The Zink technology started as a project inside Polaroid Corporation in the 1990s, which spun out Zink as a fully independent company in 2005.

Zink Holdings LLC
Zink Holdings LLC
IndustryConsumer electronics, Photography
PredecessorPolaroid
Headquarters
Billerica, Massachusetts[3]
,
United States
ProductsCameras
Printers
Websitezink.com

Zink Holdings LCC is a technology company headquartered in Billerica, Massachusetts [3](formerly Bedford, Massachusetts),[4][5][6] founded in 2005.[7] It develops what it calls "ZINK Zero Ink technology" and "ZINK Paper".[7] Zink’s Research and development labs and headquarters are in Billerica, with a paper manufacturing plant in Whitsett, North Carolina[3][7] (using staff and facilities previously used by Konica Minolta).[2][8][9]

Zink started as one of two major new technologies being developed inside Polaroid Corporation in Cambridge, Massachusetts, in the 1990s, with 100 researchers working on it.[2] Polaroid Corporation spun out Zink as a fully independent company in 2005,[10] with 50 of its staff moving to it.[2] Zink first unveiled its technology in January 2007, at IDG's DEMO 07 conference.[11][12]

Zink makes all the paper;[2] makes a printer for printing labels and other designs on rolls of Zink zRoll; and licenses its technology to other companies that make compact photo printers, and combined camera / compact photo printers.[n 1]

The technology

The paper has several layers: a backing layer with optional pressure sensitive adhesive, heat-sensitive layers with cyan, magenta and yellow dyes in colorless form, and overcoat.

The color addressing is achieved by controlling the heat pulse length and intensity.[13]

The color-forming layers contain colorless crystals of amorphochromic dyes. These dyes form microcrystals of their colorless tautomers, which convert to the colored form by melting and retain color after resolidification.[14][15]

The yellow layer is the topmost one, sensitive to short heat pulses of high temperature. The magenta layer is in the middle, sensitive to longer pulses of moderate temperature. The cyan layer is at the bottom, sensitive to long pulses of lower temperature. The layers are separated by thin interlayers, acting as heat insulation, moderating the heat throughout.[16]

Notes
  1. Actually Alps Electric produce the Zink print engines, and Foxconn and Lite-On build Zink-based products for major consumer-products companies.
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References
  1. By Erick Schonfeld and Chris Morrison, Business 2.0 Magazine. "The next disruptors - September 1, 2007". CNNMoney. Retrieved 2016-09-04.
  2. "Zink: Inkless Printing With Colorless Color - IEEE Spectrum". IEEE Spectrum. Retrieved 2016-09-04.
  3. Kirsner, Scott. "Chasing the Polaroid magic in a digital age". Boston Globe. The Boston Globe. Retrieved 29 April 2017.
  4. "ZINK Imaging | CrunchBase". crunchbase.com. Retrieved 2016-09-04.
  5. "ZINK Imaging Closes $35 Million in Series B Financing Led by Genii Capital and Expands Executive Team With the Addition of Co-CEOs - Yahoo Finance". finance.yahoo.com. Retrieved 2016-09-04.
  6. "ZINK: Private Company Information - Businessweek". bloomberg.com. Retrieved 2016-09-04.
  7. "ZINK Raises $35 Million, Aims To Popularize Ink-Free Printing | TechCrunch". techcrunch.com. Retrieved 2016-09-04.
  8. Hoffman, Patrick (6 July 2007). "Zink to Step-Up Production of Inkless Printing Paper". PC Magazine. Retrieved 5 September 2016.
  9. Humphries, Matthew (9 July 2007). "Inkless Photo Printing | Computerworld". Geek.com. Retrieved 5 September 2016.
  10. Mark Hall. "Inkless Photo Printing | Computerworld". computerworld.com. Retrieved 2016-09-04.
  11. "ZINK Promises Ink-Less Printing | News & Opinion | PCMag.com". pcmag.com. Retrieved 2016-09-04.
  12. "DEMO 07: ZINK Imaging, LLC. - ZINK Digital Imaging Technology". DemoConferences. 19 February 2007. Retrieved 5 September 2016.
  13. http://computer.howstuffworks.com/mobile-photo-printer2.htm
  14. Peter Bamfield; Michael G. Hutchings (2010). Chromic Phenomena: Technological Applications of Colour Chemistry. Royal Society of Chemistry. p. 114. ISBN 978-1-84755-868-8.
  15. "The Missing Ink". 11 March 2008. Archived from the original on 2018-12-22. Retrieved 22 December 2018.
  16. http://www.freepatentsonline.com/EP1399318.html
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