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Photochromic flexible printing ink

An optical and flexo printing technology, applied in ink, household utensils, applications, etc., can solve the problems of slow printing speed, poor environmental protection performance, and limited application range, and achieve the effect of uniform particle size, small particle size, and continuous uniform transfer

Inactive Publication Date: 2012-05-23
HUIZHOU FORYOU OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The anti-counterfeiting application of optically variable inks on self-adhesive labels has developed rapidly. Most of my country's self-adhesive labels use flexographic printing, while traditional flexographic inks are volatile and dry inks, with slow printing speed and poor environmental performance. Therefore, Its scope of application is increasingly limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Production environment requirements: dark and clean conditions with a temperature of 20-30°C and a humidity of 60-80%.

[0031] 1. The formulation and production process of the binder:

[0032] The following raw materials are equipped with: 360 grams of polyester acrylate (36% by weight), 360 grams of epoxy acrylate (36% by weight), 180 grams of oxidized trimethylolpropane triacrylate (18% by weight ), 100 grams of 2-hydroxyl-2-methyl-1-phenylacetone (10% by weight).

[0033] Put the raw materials into a special container according to the above weight percentage and order, start stirring at a low speed of 300-500 rpm, and then stir at a high speed of 500-1000 rpm for 20-30 minutes, and pack it for later use after stirring evenly.

[0034] 2. Formula and production process of optical color-changing flexo printing ink:

[0035] The following raw materials are equipped: 675 grams of the above-mentioned connecting material (67.5% by weight), Solsperse 240005 grams of 0.5%...

Embodiment 2

[0039] Production environment requirements: dark and clean conditions with a temperature of 20-30°C and a humidity of 60-80%.

[0040] 1. The formulation and production process of the binder:

[0041] The following raw materials are equipped with: 480 grams of polyester acrylate (48% by weight), 240 grams of epoxy acrylate (24% by weight), 160 grams of trimethylolpropane triacrylate (16% by weight), 120 grams of 2-hydroxy-2-methyl-1-phenylacetone (12% by weight).

[0042]Put the raw materials into the special container according to the above weight percentage and order, start stirring at a low speed of 300-500 rpm, then stir at a high speed of 500-1000 rpm for 20-30 minutes, mix well and pack for later use.

[0043] 2. Formula and production process of optical color-changing flexo printing ink:

[0044] The following raw materials are equipped: 665 grams of the above-mentioned connecting material obtained (66.5% by weight), 75 grams of tripropylene glycol diacrylate (TPGDA) ...

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PUM

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Abstract

The embodiment of the invention provides photochromic flexible printing ink comprising the following components in percentage by weight: 1-60% of photochromic pigment, 1-95% of binder, 0-10% of assistant and 0-40% of diluent. In such a way, the photochromic flexible printing ink provided by the embodiment of the invention is wide in viscosity adjusting range, can be suitable for flexible printing machines of various types to print through being adjusted by the diluent and is good in dispersion and wettability, the photochromic pigment can be filled in ink cells of a knurled roll and smoothly transferred to a substrate, the adopted photochromic pigment has small and uniform particle size, and thus, the continuous and uniform transfer of the pigment is ensured.

Description

【Technical field】 [0001] The embodiments of the present invention relate to an ink, in particular to an optically variable flexographic printing ink. 【Background technique】 [0002] Optical color-changing ink is a complex interference type anti-counterfeiting ink. Its printed matter shows two different colors with the change of human eye angle, and has a special metallic texture. It can integrate first-line anti-counterfeiting and packaging decoration. , has been applied to a variety of cigarette packs and anti-counterfeiting labels. The color changing effect of optically variable ink is realized by the optically variable pigment in the ink. Due to the particularity of the optically variable pigment, that is, it is a flake-shaped inorganic pigment that presents two or more colors depending on the viewing angle. In order to show a better color changing effect, the theory requires that the optically variable pigment in the printed ink film It can be arranged in parallel with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/101C09D11/107C09D11/50
Inventor 邹文格张睿何建朱永成陈章荣
Owner HUIZHOU FORYOU OPTICAL TECH
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