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Ink-jet printing

A technology of printing area and printing method, applied in the direction of printing, printing device, etc., to achieve the effects of cost saving, comfortable feeling and avoiding environmental problems

Active Publication Date: 2006-07-12
FUJIFILM DIMATIX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method may have limitations, especially in applications that require high-resolution, full-color images

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: Observation of wrinkling due to aqueous ink coating of newsprint.

[0045] 1. Newsprint samples were coated with an aqueous liquid using a pull coater (PK Print-Coat Instrument obtained from PK Print Coat Instruments Ltd., Herts, United Kingdom). Rod #0 was selected for coating and the coater speed setting was set to 10. According to the coater manufacturer's calibration table, the bar and speed provide a coating thickness of approximately 6 to 8 microns. Very small volumes of liquid (eg, 2 to 3 cm 3 ) was transferred onto a coating rod placed on top of a newsprint sheet. When activated, the coater pulls the wet coating rod across an area of ​​the newsprint sheet, applying a liquid coating to that area. Visual inspection of coated newsprint showed significant sheet deformation within one second of coating. This time is determined by first measuring the time for the rod to complete its coating cycle and then observing the paper at the end of the cycle. ...

Embodiment 2

[0046] Example 2: Video observation of wrinkling during spraying.

[0047] The aqueous liquid was sprayed onto a 4 inch by 5 inch surface area of ​​the newsprint sample using a nebulizer spray nozzle (obtained from Spraying Systems Co. (Wheaton, IL), model 1 / 4 JCO-SS-SV13A-SS). Plexiglas frames were used to mask all but the 4 inch by 5 inch window on each sample. The gas pressure and liquid pressure of the sprayer were adjusted to provide a coating thickness of approximately 10 to 12 microns by placing a Mettler Toledo PB303 balance (obtained from Fisher Scientific) on the same position as the paper and directly weighing an equal amount of the spray liquid to be sure. Two fiber optic lamps (FiberLiteModel PL800 obtained from Cole Parmer, Vernon Hills, IL) were placed approximately 1 inch above the paper surface and 8 inches from the exposed paper, thereby illuminating the exposed paper portion at an oblique angle, and the two lamps are oriented approximately 90 degrees rel...

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PUM

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Abstract

Methods of printing on absorbent substrates are disclosed. In certain aspects, the methods reduce image distortion due to substrate cockle.

Description

technical field [0001] This invention relates to inkjet printing. Background technique [0002] In inkjet printing, ink is ejected from a narrow orifice in the direction of the substrate. In a type of inkjet printing known as drop-on-demand printing, ink is ejected as a series of droplets. Ink droplets can be generated and controlled using piezoelectric inkjet heads with a large number of holes. Each orifice can be individually controlled to selectively fire ink at desired image locations or pixels. For example, an inkjet head may have 256 holes with spacing suitable for a printing resolution of at least 100 pixels (dots) per inch (dpi), and sometimes much higher than that. This dense array of holes allows complex, high-precision images to be produced. In high-performance printheads, the nozzle holes typically have a diameter of 50 microns or less (e.g., about 25 microns), are spaced at a pitch of 25 to 300 nozzles / inch, have a resolution of 100 to 3000 dpi or more, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J29/38B41J29/393
CPCB41J2/2132B41J29/393B41J11/42B41J29/38B41J2/07
Inventor 詹恩·拉斯佩尔詹姆斯·R·弗里德曼
Owner FUJIFILM DIMATIX
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