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Photoinitiator for ultraviolet light curing ink and its preparation method and application

A technology of photoinitiator and ultraviolet light, which is applied in the direction of ink, application, household utensils, etc., can solve the problems of yellowing, unpleasant smell, and low initiation efficiency, so as to improve the initiation efficiency, improve sensitivity and absorption performance, and solve the problem of high cost effect

Active Publication Date: 2020-09-25
蚌埠金黄山凹版印刷有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: the traditional photoinitiator has the problems of producing carcinogenic aromatic hydrocarbon compound benzene, yellowing, unpleasant smell, and low initiation efficiency. It is necessary to provide a combination LED-UV with high initiation efficiency and environmental friendliness Photocuring Initiator

Method used

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  • Photoinitiator for ultraviolet light curing ink and its preparation method and application
  • Photoinitiator for ultraviolet light curing ink and its preparation method and application
  • Photoinitiator for ultraviolet light curing ink and its preparation method and application

Examples

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preparation example Construction

[0033] A kind of preparation method of high-performance LED-UV photocurable ink photoinitiator, concrete operation steps are as follows:

[0034] a. Add TPO, 819, ITX and 2-methyl-2-(4-morpholinyl)-1-[4-(methylthio)phenyl]-1-propanone successively to the single port equipped with stirring device In the flask, then put the flask in a constant temperature circulating water bath at 2°C for uniform mixing. During this process, the stirring device is turned on, and the mechanical stirring state is maintained to fully and uniformly mix the initiator, and stir and mix for 1 hour;

[0035] b. According to the basic theory of modification, cationic photoinitiators are sequentially added to the single-necked flask, firstly add UVI-6992 to the flask, stir and mix for 10 minutes; add η6-cumyl ferrocene hexafluorophosphate to In the system, keep the constant temperature water bath at 2°C, stir and mix for 30 minutes;

[0036] c. Add cobalt acetylacetonate into a single-necked flask, mix a...

Embodiment 1

[0050] Prepare a kind of photoinitiator that is applicable to ultraviolet curing ink, the compound ratio used in embodiment one is as shown in the following table:

[0051] The proportioning (g) of compound used in the embodiment one of table 1

[0052]

[0053] The preparation method is as follows:

[0054] a. Add TPO, 819, ITX and 2-methyl-2-(4-morpholinyl)-1-[4-(methylthio)phenyl]-1-propanone successively to the single port equipped with stirring device In the flask, then put the flask in a constant temperature circulating water bath at 2°C for uniform mixing. During this process, the stirring device is turned on, and the mechanical stirring state is maintained to fully and uniformly mix the initiator, and stir and mix for 1 hour;

[0055] b. According to the basic theory of modification, cationic photoinitiators are sequentially added to the single-necked flask, firstly add UVI-6992 to the flask, stir and mix for 10 minutes; add η6-cumyl ferrocene hexafluorophosphate t...

Embodiment 2

[0067] Prepare a kind of photoinitiator that is applicable to ultraviolet curing ink, the compound ratio used in embodiment one is as shown in the following table:

[0068] The proportioning (g) of compound used in the embodiment two of table 2

[0069]

[0070] The preparation method is as follows:

[0071] a. Add TPO, 819, ITX and 2-methyl-2-(4-morpholinyl)-1-[4-(methylthio)phenyl]-1-propanone successively to the single port equipped with stirring device In the flask, then put the flask in a constant temperature circulating water bath at 2°C for uniform mixing. During this process, the stirring device was turned on, and the mechanical stirring state was maintained to fully and uniformly mix the initiator, and the stirring and mixing was carried out for 1 hour;

[0072] b. According to the basic theory of modification, cationic photoinitiators are sequentially added to the single-necked flask, first add UVI-6992 to the flask, and stir and mix for 10 minutes; add η6-cumyl ...

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Abstract

The invention relates to a photoinitiator for ultraviolet curing ink and a preparation method and application of the photoinitiator. The photoinitiator is prepared from 40 to 55 parts of free radical type photoinitiator, 5 to 10 parts by weight of cationic photoinitiator and 5 to 10 parts o by weight f photosensitizer; the free radical photoinitiator is prepared from 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, bis(2,4,6-trimethylbenzoyl)-phenyl phosphine oxide, 2-isopropylthioxanthone and 2-methyl-2-(4-morpholinyl)-1-[4-(methylmercapto) phenyl]-1-acetone; the cationic photoinitiator is prepared from mixed triaryl hexafluorophosphoric acid sulfonium salt and eta6-isopropylbenzene cyclopentadienyl iron hexafluorophosphate. The photoinitiator has good photo-initiation efficiency, can solve the problem of low initiation efficiency under LED (Light-Emitting Diode) light, is low-cost and has wide application prospect.

Description

technical field [0001] The invention relates to the field of ultraviolet light curing ink, mainly relates to a safe and environment-friendly cold-field ultraviolet light curing (LED-UV light curing) initiator, in particular to a photoinitiator for ultraviolet light curing ink and its preparation method and application. Background technique [0002] UV printing is currently the most widely used printing method in the world. It occupies a large share of the printing market with its advantages of low damage, low cost, high quality, high efficiency and easy operation, and is the fastest growing printing method. , it is juxtaposed with water-based ink to become a new type of environmentally friendly material for the printing ink industry and related industries. Compared with water-based inks, UV inks have more advantages in terms of dryness. Its drying mechanism is different from that of other inks, such as solvent volatilization drying and substrate osmosis drying mechanism. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/101
CPCC09D11/101
Inventor 焦杰明方长青周星蒋祥瑜庄坤张涛
Owner 蚌埠金黄山凹版印刷有限公司
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