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Ultraviolet curable and infrared permeable ink composition for inkjet, having enhanced high temperature resistance

By using high-temperature-resistant UV-curable ink compositions in mobile device manufacturing, the problem of infrared ink discoloration and deformation at high temperatures is solved, constant infrared light transmittance and surface hardness are achieved, and process costs and time are reduced. .

Active Publication Date: 2018-02-23
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method has a problem of increased processing time and cost due to the addition of unnecessary processes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: UV-curable and infrared-transmissive inkjet inks with improved high temperature resistance Preparation of the composition

[0044] As the composition listed in Table 1 below, based on the total weight of the entire ink composition, 5% by weight of a perylene black pigment as a colorant, 1% by weight of an acryl-based dispersant, and 12% by weight of DPHA as a colorant were mixed. Multifunctional acryl monomer, 25% by weight of TMPTA as trifunctional acryl monomer, 27.9% by weight of HPNDA as bifunctional acryl monomer, 15% by weight of 2-HEA as monofunctional acryl monomer, [3 The Irgacure 819 of weight %, the Irgacure 907 of 3 weight % and the ITX of 2 weight %] as photoinitiator, 1 weight % epoxy adhesive (PD-7610, Almatex), the KBM-403 of 5 weight % as adhesive Force enhancer, 0.05% by weight of fluorosurfactant (RS-75) and 0.05% by weight of MEHQ were used as polymerization inhibitors. The mixture was stirred for 6 hours to prepare a UV-curable and i...

Embodiment 2

[0047] Example 2: UV-curable and infrared-transmissive inkjet inks with improved high temperature resistance Preparation of the composition

[0048] As shown in Table 1 above, an ink composition was prepared with the same composition as in Example 1, except that 5% by weight of lactam black pigment was used instead of 5% by weight of perylene black pigment.

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Abstract

The present invention relates to an ultraviolet curable and infrared permeable ink composition for an inkjet, having enhanced high temperature resistance, the composition constantly exhibiting infrared transmissivity, surface hardness, and the like by preventing the discoloration and the deformation thereof even if a high-temperature heat treatment is performed during curing, drying, and the like.

Description

technical field [0001] This application claims the benefit of priority of Korean Patent Application No.10-2015-0133084 filed on September 21, 2015 and Korean Patent Application No.10-2016-0085008 filed on July 5, 2016, both of which This application is incorporated by reference in its entirety. [0002] The present invention relates to a UV-curable and infrared-transmissive inkjet ink composition having improved high temperature resistance. More specifically, the present invention relates to an ultraviolet light-curable and infrared light-transmissive inkjet ink composition having improved high temperature resistance, even if heat treatment at a high temperature is performed during curing, drying, etc. The composition also exhibits constant infrared light transmittance, surface hardness, etc. by preventing discoloration and deformation. Background technique [0003] Mobile devices including smartphones have become a necessity for children and adults of all ages today and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/322C09D11/328C09D11/102G02B5/20B41J2/01B41M5/00
CPCC09D11/322G02B5/208C09D11/38C09D11/101B41J2/01B41M5/00C09D11/102C09D11/328G02B5/20B41M3/003B41M5/0023B41M7/0081C09D11/107
Owner LG CHEM LTD