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Image forming method

An image and resin layer technology, which is applied in the direction of instruments, developers, optics, etc., can solve the problems of economical unfeasibility and achieve the effect of excellent image durability

Pending Publication Date: 2020-05-08
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this method, when the foil is selectively transferred to only a part of the image, all the non-transferred foil is discarded, which is economically unacceptable.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0173] As a method for preparing a polyester resin dispersion, for example, a method of dispersing in an aqueous medium without using a solvent; dissolving a polyester resin in a solvent to prepare a solution, and adding an aqueous solution to the solution After the medium, the method of desolvation treatment, etc. In the present invention, the latter method is preferred. The solvent used in the latter method is not particularly limited, and examples thereof include isopropanol, butanol, methyl ethyl ketone, and the like.

[0174] Among them, the so-called "aqueous medium" refers to a medium containing at least 50% by mass of water, and as components other than water, organic solvents dissolved in water can be mentioned, such as methanol, ethanol, isopropanol, butane, etc. Alcohol, acetone, dimethylformamide, methyl cellosolve, tetrahydrofuran, etc. Among these, alcohol-based organic solvents such as methanol, ethanol, isopropanol, and butanol, which are organic solvents tha...

Embodiment 1-1～20-1、 comparative example 1-1

[0508] Each developer and Oji Paper POD GLOSS COAT (weight per square meter 128g / m 2 ), output a resin image (thickness 5 μm) having a square patch pattern of 2 cm×2 cm on a recording medium. The above-mentioned resin-made image appears black (black).

[0509]Then, on a hot plate heated to 60° C., the above-mentioned resin image was placed upward, and the recording medium was placed, and after 30 seconds, powder 1 (Sansherin Bebi-D-9 chromium powder, GG Corp. Co., Ltd. Manufactured, flat shape, particle size 25-40 μm), left still for 30 seconds, and a decorative image was obtained. Compressed air of 0.30 MPa was sprayed to this decorative image, and the adhesiveness of the powder 1 was confirmed. When the powder came off from the resin image, the surface temperature of the hot plate was raised by 1° C., and the powder decorative image was formed in the same manner as above, and the adhesion of the powder 1 was confirmed in the same manner. The surface temperature of the ho...

Embodiment 1-2

[0517] A resin image (thickness: 5 μm) having a square patch pattern of 2 cm×2 cm was output on a recording medium in the same manner as in the aforementioned .

[0518] Next, on a hot plate heated to 85° C., place the above-mentioned resin image upwards and place the recording medium, and after 30 seconds, sprinkle powder 1 (Sanshin Bebe D-9 chromium powder, manufactured by GG Corp. Co., Ltd., on the resin image) flat metal powder), the surface of the patch image of the above-mentioned resin image was subjected to sliding rubbing with a sponge roller. The squeezing force at the time of sliding friction is about 10 kPa. After the sliding rubbing, the above-mentioned resin image was cooled at room temperature, and the remaining powder 1 was removed from the surface of the image with a brush to form a decorative image. 10 test subjects visually observed the decorative image and evaluated whether they felt a sufficient metallic feeling. Five or more people who answered that the...

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Abstract

The present invention relates to an image forming method. Provided is a method capable of fixing a decorative powder at a low temperature, capable of forming a decorative image that exhibits a desiredtexture (glossy feel, etc.) and has excellent image durability. The image forming method according to the present invention includes forming an image including a resin layer formed on a recording medium and a decorative powder, the resin layer containing a polyester resin.

Description

technical field [0001] The present invention relates to an image forming method. Background technique [0002] In recent years, in the on-demand printing market, the demand for specialty printing and high value-added printing has been increasing. Among them, metallic printing and pearlescent printing are particularly in demand, and various studies have been conducted on printing techniques capable of imparting textures such as glossiness (eg, metallic, pearlescent). [0003] As one of the methods, a method of transferring a foil body such as a metal foil or a resin foil using a toner as an adhesive layer has been studied. For example, Patent Document 1 proposes a technique of forming a toner image and adhering a transfer foil only to the toner image portion. In this method, when the foil body is selectively transferred to only a part of the image, all the foil body in the non-transferred portion is discarded, which is economically unfavorable. In addition, when printing a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G9/087
CPCG03G9/08755
Inventor 藤野香饭冈淳藤田美千代
Owner KONICA MINOLTA INC
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