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Method and apparatus for fixing a radiation-curable gel-ink image on a substrate

A radiation curing and ink technology, which can be used in the equipment of electrical recording process applying charge pattern, electrical recording process applying charge pattern, general parts of printing machinery, etc., and can solve problems such as failure

Active Publication Date: 2014-06-25
XEROX CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means that traditional methods of smoothing ink layers tend to fail because the ink cracks and leaves many images on the device that tries to smooth it, such as the traditional fuser roll commonly used in xerographic printing

Method used

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  • Method and apparatus for fixing a radiation-curable gel-ink image on a substrate
  • Method and apparatus for fixing a radiation-curable gel-ink image on a substrate
  • Method and apparatus for fixing a radiation-curable gel-ink image on a substrate

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Embodiment Construction

[0008] figure 1 is a simplified front view of the fixture used in a larger printing apparatus according to the first embodiment. A paper or substrate (made of any suitable material) S carrying an unfixed ink image I is approached along a process direction P to a stationary device comprising a rotatable member (here in the form of an ink-side flattening roller 10) and a support member (here in the form of a supporting roller 20). In a practical embodiment, the ink image I now comprises an uncured, viscous liquid that has not penetrated the substrate S significantly. The nip formed between the rollers 10 and 20, this unfixed ink I is mechanically "flattened" by the nip pressure, which effectively presents the various layers of polychromatic ink to the surface I of the opposing substrate S Fixed overall height.

[0009] Simultaneously with applying mechanical pressure at the nip, radiant energy is applied to the ink I, the radiant energy comprising a suitable wavelength ( Usu...

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PUM

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Abstract

An apparatus fixes ink on a substrate (S), such as in ink-jet printing. A leveling member (10,12) is positioned to contact an ink-bearing side of the substrate at a nip. A radiation source (30) is positioned to direct radiation to the ink-bearing side of the substrate at the nip, the radiation suitable for curing the ink (I) on the substrate.

Description

technical field [0001] The present disclosure relates to printing with radiation curable inks. Background technique [0002] Conventional printing devices use image receptors to apply ink to printing paper. However, there is a need to provide a system in which such inks as described above can be applied directly to printing paper or other substrates. In practice, one challenge with such a system is that the ink tends to have a "mayonnaise"-like consistency at room temperature, but becomes a low-viscosity liquid when heated for ease of jetting. A typical inkjet printing process heats the ink into a liquid and then directly ejects ink droplets from a piezo nozzle onto the substrate. Once the jetted ink hits the substrate, it changes from liquid back to its more viscous consistency phase, thereby reducing its penetration into the porous medium. Once this ink is exposed to ultraviolet (UV) radiation, the photoinitiators in the ink are bombarded with UV radiation and the incid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J11/00
CPCB41J11/002B41J11/00214B41J11/00216G03G15/2053G03G2215/2009G03G2215/2029G03G15/2098B41F17/14B41F23/00B41F33/00
Inventor 布赖恩·J·鲁夫史蒂芬·E·雷迪于尔根·H·丹尼尔
Owner XEROX CORP