Inkjet printing of pearlescent and metallic colours

一种喷墨印刷、珠光色的技术，应用在印刷、油墨、复制/标记方法等方向，能够解决不经济、差粘附力、不呈现金属光泽或光亮等问题

Active Publication Date: 2017-08-18
AGFA NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, sintering occurs at temperatures above 150 degrees Celsius, which would make many common packaging materials unsuitable as ink-receiving substrates due to their thermal stability
Second, many sintered metal patterns do not exhibit (enough) metallic luster or brightness
Thirdly, using real silver on the packaging to get the silver color is not an economical solution considering the raw material cost
The result is poor adhesion, often necessitating the application of an additional primer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0222] This example illustrates how fine silver and gold lines can be obtained by the inkjet printing method according to the invention.

[0223] Preparation of Concentrated Color Pigment Dispersions

[0224] Concentrated pigment dispersions KD, MD, CD and YD were all prepared in the same manner, except that different types and amounts of pigments, polymeric dispersants and other components were used according to Table 1. Preparation of Concentrated Pigment Dispersion Concentrated pigment dispersion CD was used as an example to prepare cyan inkjet ink C1.

[0225] Table 1

[0226] weight% KD MD cd YD PB7 11.03 --- --- --- PM --- 15.00 --- --- QAD --- 0.80 --- --- PB15:4 3.97 --- 15.00 --- PY150 --- --- --- 15.00 S35000 15.00 15.00 15.00 15.00 Genorad TM 16

1.00 1.00 1.00 1.00 DPGDA 69.00 68.20 69.00 69.00 For ink: K1 M1 C1 Y1

[0227] Concentrated pigment dispersions CD ...

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Abstract

A method of inkjet printing a colour image including a metallic or pearlescent colour comprising the steps of applying on part of an ink receiver a layer containing a pearlescent or metallic pigment having a volume mean particle size of at least 3.0 pm as measured by laser diffraction; and inkjet printing on part of the layer containing the pearlescent or metallic pigment a layer with a white inkjet ink containing a white pigment having a average particle size between 250 and 400 nm as measured by differential centrifugal sedimentation.

Description

technical field [0001] The present invention involves inkjet printing a pearlescent or metallic effect on an ink receptor, such as silver and gold lines on packaging. Background technique [0002] Due to the flexibility of inkjet printing systems in use, such as variable data printing, and because of their enhanced reliability that allows them to be incorporated into production lines, printing systems such as offset printing and flexo printing are increasingly being used for Industrial applications are replaced by inkjet printing systems. Radiation curable inkjet inks are particularly preferred because high quality color images can be printed on non-absorbing ink receptors such as plastic materials. [0003] Often these high quality color images are printed using CMYK inkjet ink sets. In some applications, however, it is desirable to print pearlescent and metallic colors. For example, silver and gold are often used in packaging applications to give a product a luxurious a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00C09D11/101C09D11/322
CPCB41M5/0023B41M5/0047B41M5/0064B41M5/007C09D11/101C09D11/322
Inventor R.德蒙德特
Owner AGFA NV
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