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A kind of offset printing ink and preparation method thereof

A technology of offset printing and ink, which is applied in the field of offset printing ink and its preparation, can solve the problems of high luminous brightness, and achieve the effects of high luminous brightness, not easy to produce defects, and strong broadband absorption capacity

Active Publication Date: 2018-01-19
高义包装印刷(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides an offset printing ink containing a red fluorescent composition, which has good dispersion stability, is not prone to defects on the printing surface, and the red fluorescent composition is not destroyed, and at the same time, the luminous brightness is high , only need a small amount of red fluorescent composition

Method used

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  • A kind of offset printing ink and preparation method thereof
  • A kind of offset printing ink and preparation method thereof
  • A kind of offset printing ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 1. Preparation of YVO 4 :Eu 3+ ,Sr 2+ Nano phosphor

[0014] (1) Add 1.2mmol Na 3 VO 4 12H 2 O was dissolved in a mixed solution containing 5ml of ethylene glycol and 2ml of distilled water; (2) While ultrasonically stirring the above solution (80kHz ultrasonic vibration and 300r / min centrifugal speed stirring), dropwise added 1.5mmol of a certain proportion of Y ( NO 3 ) 3 ·6H 2 O, Eu(NO 3 ) 3 , Sr(NO 3 ) 2 (0.9:0.03:0.07) in 8 ml of ethylene glycol solution, then ultrasonically stirred (80kHz ultrasonic vibration and 300r / min centrifugal speed stirring) for 10min until the solution was clear, and 20ml of distilled water was added; (3) Pour the reaction solution into a volume of In a 50 ml polytetrafluoroethylene-lined autoclave, under vacuum, 200 o C under heat preservation reaction 1h, down to 150 o C under insulation reaction 1h, after the end of the reaction, cooled to room temperature. The resulting suspension was poured out, centrifuged and washed ...

Embodiment 2

[0022] On the basis of embodiment 1, the YVO in the step 3 4 :Eu 3+ ,Sr 2+ with YVO 4 :Eu 3+ , Bi 3+ The weight ratio is changed to 1:0.5, and the rest are the same as in Example 1.

Embodiment 3

[0024] On the basis of embodiment 1, the YVO in the step 3 4 :Eu 3+ ,Sr 2+ with YVO 4 :Eu 3+ , Bi 3+ The weight ratio was changed to 1:0.001, and the rest were the same as in Example 1.

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Abstract

The invention discloses an ink for offset printing, which is composed of the following raw materials in parts by weight: 20-30 parts of ink base, 50-60 parts of rosin-modified phenolic resin varnish, 1-5 parts of fluorine-containing varnish, and 1 part of cobalt naphthenate ~5 parts, No. 5 solvent 10~15 parts; Among them, the ink base is composed of the following raw materials in parts by weight: 1~5 parts of polyoxyethylene alkyl allyl ether, 5~10 parts of alkyd resin, rosin modified phenolic 10-20 parts of resin varnish, 30-40 parts of No. 5 solvent and 20-30 parts of red fluorescent composition, the red fluorescent composition is YVO4:Eu3+, Sr2+@YVO4:Eu3+, Bi3+ or YVO4:Eu3+, Sr2+ @YVO4: Eu3+, Bi3+@Ag@SiO2 red fluorescent composition. The invention also discloses a preparation method of the offset printing ink. The offset printing ink containing the red fluorescent composition has good dispersion stability, is not prone to defects on the printing surface, the red fluorescent composition is not damaged, and at the same time has high luminous brightness, requiring only a small amount of the red fluorescent composition .

Description

technical field [0001] The invention relates to an ink for offset printing and a preparation method thereof. Background technique [0002] In the field of art and decoration, on the walls or ceilings of theme parks, hotels, underground passages, trains, etc., artists or craft coating technicians use the above-mentioned paints containing phosphors to draw decorative pictures, etc., and use backlights, etc. Expose it to ultraviolet light to reveal vivid fluorescent color paintings. [0003] Offset printing is a printing method that temporarily transfers ink from a lithographic plate to a rubber cloth, and then transfers the ink on the rubber cloth to the printed surface. When inorganic phosphors with a particle size of several tens of microns are used, defects are likely to occur on the printed surface. Moreover, it is easy to destroy the inorganic phosphor; if the particle size of the phosphor is reduced to the nanometer level, the luminous brightness will be low, which is n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/103C09D11/03C09D11/105C09D11/033C09K11/82
Inventor 严梅霞
Owner 高义包装印刷(苏州)有限公司
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