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Image forming method and apparatus

An image and equipment technology, applied in the field of image forming methods and image forming equipment, can solve the problems of ground interference, inability to form shape and size, discomfort, etc., and achieve the effects of improving productivity and preventing adhesion

Active Publication Date: 2009-04-29
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]However, a problem associated with the inkjet recording system is that when dots are formed to a high density by using ink droplets continuously deposited on a recording medium so that adjacent dots overlap In the case of , so-called landing disturbance (bleeding) occurs, that is, ink droplets forming adjacent dots on the recording medium merge under the action of surface tension, and dots of the desired shape and size cannot be formed
For example, when using a standard inkjet ink with a pigment concentration of 4 parts by weight in the ink, an amount of ink with a thickness of about 10 μm is required for a high-concentration portion of the image, but when the image on paper has a thickness of 10 μm, Strong discomfort caused by the appearance of the print and the problem is related to its quality

Method used

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  • Image forming method and apparatus

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no. 1 approach

[0125] In the first embodiment of the image forming apparatus according to the present invention, an image is directly formed by a two-liquid accumulation method on a recording medium conveyed by a drum. In this embodiment of the present invention, a typical inkjet recording apparatus as an image forming apparatus will be described.

[0126]

[0127] FIG. 1 is a structural diagram illustrating the overall configuration of an inkjet recording apparatus 1 of the present embodiment. The inkjet recording apparatus 1 shown in this figure is a device that forms an image on a recording surface of a recording medium 22 . The apparatus includes a paper supply unit 10 , a process liquid application unit 12 , an image forming unit 14 , a drying unit 16 , a fixing unit 18 , and a discharge unit 20 as main components. The recording medium 22 (paper) is stacked in the paper supply unit 10 , and the recording medium 22 is supplied from the paper supply unit 10 to the treatment liquid appl...

no. 2 approach

[0478] In the second embodiment of the image forming apparatus according to the present invention, an intermediate transfer system is used in which an image is temporarily formed on an intermediate transfer body by a two-liquid accumulation method, and this The image is transferred to the recording medium.

[0479] Fig. 15 is a schematic configuration diagram of an inkjet recording apparatus of a second embodiment. The inkjet recording apparatus 200 shown in FIG. 15 uses a two-liquid aggregation system, and an intermediate transfer recording system. In this inkjet recording apparatus, an ink image composed of ink aggregates (coloring material aggregates) is formed on an intermediate transfer body 202 by using ink and an aggregation treatment agent, and the ink formed on the intermediate transfer body 202 The image is transferred onto the recording medium 204 .

[0480] As shown in FIG. 15, the inkjet recording apparatus 200 of the second embodiment mainly includes: an aggreg...

no. 3 approach

[0533] The third embodiment of the image forming apparatus according to the present invention has the following configuration: an intermediate transfer system in which an image is temporarily formed on an intermediate transfer body by a two-liquid accumulation method, and then the image is transferred to a recording medium In the method, a treatment liquid containing a component for aggregating the coloring material of the ink and substantially colorless fine particles is applied to the intermediate transfer body.

[0534] The substantially colorless microparticles used in accordance with the present invention may be any microparticles provided they are substantially colorless. The expression "substantially colorless" as mentioned here means that in the 0.1g / m 2 A state where the light absorption density in the visible light range is not more than 0.1 when the microparticles according to the present invention are coated.

[0535] Specific examples of substantially colorless m...

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Abstract

The image forming method is for forming an image on an image formation body by using an ink liquid including a coloring material and an aggregation treatment agent including a component that causes the coloring material to aggregate. The image forming method includes: an aggregation treatment layer formation step of forming, on the image formation body, a semisolid aggregation treatment layer that includes the aggregation treatment agent and has a moisture content ratio not more than 56%; an ink droplet deposition step of ejecting droplets of the ink liquid and depositing the droplets of the ink liquid onto the image formation body where the aggregation treatment layer has been formed; and a solvent removal step of removing a liquid solvent present on the image formation body after the ink droplet deposition step.

Description

technical field [0001] The present invention relates to an image forming method and an image forming apparatus, and more particularly, to an image forming method and an image forming apparatus in which an image is formed on an image forming body by using ink and an aggregation treatment agent. Background technique [0002] In the inkjet recording system, recording is performed by discharging ink droplets from nozzles, and causing the ink droplets to adhere to a recording medium or the like. Contrary to other systems, the noise during the recording operation is low, the running cost is low, and image recording with high resolution and high quality is possible. The inkjet system may be a piezoelectric system utilizing displacement of a piezoelectric element or a thermal system utilizing thermal energy generated by a heat generating element. [0003] Image forming methods in inkjet recording systems can generally be divided into two types of systems: direct image forming syste...

Claims

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Application Information

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IPC IPC(8): B41J2/01B41J2/21C09D11/02B41M5/52B41M5/00
CPCB41M5/03B41M5/0011B41M5/0017B41M5/0256B41M7/00
Inventor 千绵祐平山野边淳幕田俊之楠木直毅
Owner FUJIFILM CORP
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