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Printing apparatus and printing method thereof

A technology for printing equipment and printing units, applied in the field of liquid components of ink, capable of solving problems such as curling and wrinkling

Inactive Publication Date: 2019-01-15
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, curling or wrinkling may occur when the print media excessively absorbs the liquid components in the ink

Method used

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  • Printing apparatus and printing method thereof
  • Printing apparatus and printing method thereof
  • Printing apparatus and printing method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0182] A porous body formed of two layers of a first layer and a second layer is used as Figure 8 The liquid absorbent member 50 is shown. Bringing the first layer of the liquid absorbing member 50 into contact with the image formed by the ink discharged from the print head 30 to the transfer member 2 makes it possible to absorb the liquid component of the ink and condense the image. Here, for the first layer, PTFE having a pore diameter of 0.2 μm and a thickness of 10 μm obtained by pressing a resin to the first layer was used. For the second layer, a fabric made of PET material with a pore size of 20 μm and a thickness of 190 μm was used. Then, a body obtained by integrating these first and second layers by thermocompression lamination was used. In this example, the Gurley value of the liquid absorbing member 50 defined by JIS P8117 is 8 seconds. 10 g / m is supplied to the liquid absorbing member 50 after liquid absorption using the application roller 551 2 structure of ...

example 2

[0186] In example 2, as in Figure 11 As shown, the entry angle of the liquid absorbing member 50 to the driven roller 511f of the collecting unit 54 is obtained by making the liquid absorbing member 50 enter the driven roller 511f from obliquely above. Other than that, create the sample as in Example 1.

example 3

[0188] In Example 3, the material used for the driven roller 511f is EPDM rubber. Other than that, create the sample as in Example 2. In other words, the hardness of the driven roller 511 f is lower than that of the removal roller 540 .

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Abstract

The invention provides a printing apparatus and a printing method thereof. In a printing apparatus, an image is formed by an inkjet printhead, and a liquid component is absorbed from the image by bringing a cyclically movable liquid absorbing member into contact with the image. Then, the member is nipped by the first roller that contacts the first surface of the member, and the second roller thathas a vertical positional relationship with respect to the first roller and contacts the second surface on a side opposite to the first surface. Furthermore, a region where the member is pressurized is formed by sealing the member by bending and winding the member around the first roller located on an upper side of the second roller at the nipped position. Then, the absorbed liquid component is pushed out and collected by moving the member in the nipped state.

Description

technical field [0001] The present invention relates to a printing apparatus and a printing method thereof, and particularly relates to, for example, absorbing ink discharged from a print head to a transfer member in a printing apparatus that transfers an image formed by discharging ink to a transfer member and prints the image technology of the liquid composition. Background technique [0002] In the inkjet printing method, an image is formed by directly or indirectly applying a liquid composition (ink) containing a coloring material to a printing medium such as paper. At this time, curling or wrinkling may occur when the printing medium excessively absorbs the liquid component in the ink. [0003] In order to quickly remove the liquid components in the ink, there are methods: a method of drying the printing medium by hot air or infrared rays, or forming an image on a transfer member, and then using thermal energy or the like to make the image on the transfer member contai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01B41J3/407B41J3/413B41J3/54B41M5/00
CPCB41J2/01B41J3/407B41J3/4073B41J3/4078B41J3/413B41J3/546B41M5/0047B41M5/0058B41M5/0064B41M5/007B41M5/0076B41M5/0088B41M5/0256B41J2002/012B41J2/0057
Inventor 出口恭介广川良助照井真本田祥之
Owner CANON KK