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Apparatus for immobilizing radiation curable colloidal ink on a substrate

A radiation curing, substrate technology, applied in printing devices, ink transfer from manuscripts, post-processing of printing, etc., can solve problems such as ink splitting

Inactive Publication Date: 2015-09-30
XEROX CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means that conventional methods of flattening a layer of ink tend to fail because the ink breaks up and leaves a large portion of the image on the device that attempts to flatten it, such as the conventional fuser roller that is common in xerography.

Method used

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  • Apparatus for immobilizing radiation curable colloidal ink on a substrate
  • Apparatus for immobilizing radiation curable colloidal ink on a substrate

Examples

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Embodiment Construction

[0007] figure 1 is a simplified schematic diagram of a printing system. A substrate S, such as paper or other material on which an image is desired to be printed, is unwound from a roll 10 . The substrate S is guided (via operating direction P) to a series of inkjet print heads 20 which are operated to place different color separations on the main surface of the substrate S according to input digital data. ), forming the desired full-color image (in this figure, the ink on the substrate S is represented by I). Although a "direct-to-paper" arrangement of the printhead 20 is shown, in an alternative embodiment (not shown), the printhead may first direct the ink to the intermediate element in an imagewise manner. (such as a magnetic drum), the intermediate element transfers the full-color image to the substrate S in turn. In alternative embodiments, other basic printing techniques, such as offset printing or flexographic printing, may also be used to place ink on the substrate...

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PUM

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Abstract

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

Description

technical field [0001] The present disclosure relates to printing using radiation curable inks. Background technique [0002] Conventional printing units use image receptors to apply ink to a printed page. However, there is a need to provide a system in which inks of the kind described above can be applied directly to printed pages or other substrates. The challenge with such a system is that, in practice, the ink tends to have a "mayonnaise" consistency at room temperature, but becomes a low-viscosity liquid when heated with jetting. A typical inkjet printing process heats the ink until it becomes a liquid and then directly fires ink droplets from a piezoelectric print head onto the substrate. Once the jetted ink hits the substrate, its phase state changes from a fluid to a more viscous consistency, reducing its penetration into porous media. Once the ink is exposed to UV rays, the photoinitiators in the ink are bombarded by the UV rays and the incident flow converts the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/26B41M1/14
CPCB41M1/30B41M7/0081B41M5/0047B41J11/002B41M5/0064B41M1/24B41J11/00214B41M5/03B41M5/06B41M5/40
Inventor 布赖恩·J·鲁夫史蒂芬·E·雷迪于尔根·H·丹尼尔格雷戈里·J·科瓦奇
Owner XEROX CORP