Method of manufacturing records

JP7877822B2Active Publication Date: 2026-06-23SEIKO EPSON CORP

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
SEIKO EPSON CORP
Filing Date
2022-05-18
Publication Date
2026-06-23

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Abstract

To provide a recording method in which peelability of a recording surface and a non-recording surface is improved, and a recorded article in which a change of texture of a recorded article to be obtained is suppressed even more.SOLUTION: A method for manufacturing recorded article comprises: a first ejecting process of ejecting first ink being a radiation curable type inkjet composition and allowing the ink to be attached onto a recording medium; a first irradiating process of irradiating the first ink attached onto the recording medium with radiation ray to obtain a cured coating film of the first ink; a second ejecting process of ejecting second ink being a radiation curable type inkjet composition and allowing the ink to be attached onto the cured coating film of the first ink at a plurality of dot sizes such that Duty becomes less than 100%; a second irradiating process of irradiating the second ink attached onto the recording medium with radiation ray to cure the second ink and obtain a recorded article; and a laminating process of laminating the recorded article on a recording surface on which the first ink and the second ink are attached and a non-recording surface on which the first ink and the second ink are not attached such that the recording and non-recording surfaces oppose to each other.SELECTED DRAWING: None
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Claims

1. A first ejection step involves ejecting a first ink, which is a radiation-curable inkjet composition, and adhering it to a recording medium. A first irradiation step involves irradiating the first ink adhering to the recording medium with radiation to obtain a cured coating film of the first ink, A second ejection step involves ejecting a second ink, which is a radiation-curable inkjet composition, and depositing it onto the cured coating film of the first ink in multiple dot sizes such that the duty cycle is 5% or more and 30% or less. A second irradiation step involves irradiating the second ink adhering to the recording medium with radiation to harden the second ink and obtain a recorded material. The process includes stacking the recording materials such that the recording surfaces to which the first ink and the second ink are attached face each other, and the non-recording surfaces to which the first ink and the second ink are not attached face each other. The aforementioned Duty is expressed by the following formula: Method for manufacturing records. (Duty (%) = Actual number of printed dots / (Vertical resolution × Horizontal resolution) × 100)

2. The first ink is a color ink. A method for manufacturing a record according to claim 1.

3. The second ink is clear ink. A method for manufacturing a record according to claim 1.

4. In the lamination process, the recording material is wound into a roll, thereby the recording surface and, The stacks are arranged so that the non-recording surfaces face each other. A method for manufacturing a record according to claim 1.

5. Both the recording surface and the non-recording surface of the recording medium are non-absorbent. A method for manufacturing a record according to claim 1.

6. The first ink comprises a polymerizable compound containing a monofunctional monomer, The content of the monofunctional monomer is 80% by mass or more relative to the total amount of the polymerizable compound. A method for manufacturing a record according to claim 1.

7. The second ink comprises a polymerizable compound containing a polyfunctional monomer, The polyfunctional monomer comprises a vinyl group-containing (meth)acrylate represented by the following formula (1): H 2 C=CR 1 -CO-OR 2 -O-CH=CH-R 3 ・・・ (1) (In the formula, R 1 R is a hydrogen atom or a methyl group, 2 R is a divalent organic residue having 2 to 20 carbon atoms. 3 (This is a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms.) A method for manufacturing a record according to claim 1.