Inkless printing apparatus

A marking device and substrate technology, applied in printing and other directions, can solve problems such as limiting efficiency and commercial profit, and achieve the effect of improving efficiency

Inactive Publication Date: 2012-11-28
DATALASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This limits the efficiency of these technologies and thus the commercial profits derived from them

Method used

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  • Inkless printing apparatus
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Examples

Experimental program
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Embodiment Construction

[0037] now turn figure 1 , shows a substrate marking device 100 . The apparatus 100 is suitable for marking a substrate 101 comprising a material which is liable to change color under irradiation, in order to form an image.

[0038] The substrate 101 includes a base layer on which a layer of diacetylene material is provided. The layer of diacetylene material may also incorporate an IR / NIR absorbing material, or may be provided on a layer of IR / NIR absorbing material. Those skilled in the art will of course appreciate that substrates doped with other materials that tend to change color under irradiation may also be used.

[0039] Diacetylenes are particularly suitable for use with devices according to the invention, examples of diacetylenes in the prior art are disclosed in WO2006018640, WO2009093028 and US6524000. Particularly preferred are those which can be activated reversibly between an inactive and active form by radiation as a stimulus, or which can be irreversibly ac...

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PUM

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Abstract

A substrate marking apparatus for use in combination with a substrate comprising a multi-colour change diacetylene compound is disclosed. The substrate marking apparatus comprises: at least two radiation sources operable to emit radiation of different wavelengths, optical transformation elements and a control system. The control system takes digital file information and converts this to a set of emission instructions for the radiation sources. The radiation sources are then applied to the substrate in sequence and intensity determined by the control system such that the substrate is activated to change from a colourless state to any one of a range of multiple permanent colours.

Description

technical field [0001] The invention relates to an inkless printing device. Background technique [0002] Traditional printing methods require the application of dyeing materials directly to the substrate to form areas of color on the substrate. This can be achieved using different standard methods (eg inkjet printing), thermal transfer and photosensitive techniques. Standard printing requires ink consumables, while thermal transfer has ribbons that can be depleted. Photosensitive technology requires liquid developers and fixatives. [0003] As an alternative to these methods, an inkless printing method has been developed using a drying process that does not require consumables when fixing images. Known inkless printing methods involve providing a substrate comprising or having a photosensitive material such as diacetylene incorporated therein. These materials are prone to discoloration when exposed to a suitable energy source, such as a laser. To print the desired imag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/45B41J2/47B41J2/475
CPCB41J2/45B41J2/473B41M5/285B41J2/4753
Inventor 约翰·克里德兰德安东尼·贾维斯马丁·沃克克里斯多夫·怀雷斯
Owner DATALASE
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