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Color-changing water-based ink containing hibiscus flower extract and preparation method thereof

A technology of water-based ink and hibiscus flower, which is applied in the field of printing ink, can solve the problem of losing artistic value and use value of printed products, and achieve the effect of bright patterns

Active Publication Date: 2015-09-16
苏州科德教育科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fading or discoloration of printed matter will make the printed matter lose its artistic value and use value

Method used

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  • Color-changing water-based ink containing hibiscus flower extract and preparation method thereof
  • Color-changing water-based ink containing hibiscus flower extract and preparation method thereof
  • Color-changing water-based ink containing hibiscus flower extract and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] The ink preparation process can be divided into four stages: batching, stirring pre-dispersion, grinding fine dispersion and ink adjustment.

[0039] 1) Ingredients: Water-soluble toner, water-soluble acrylic resin, polyether surfactant, isopropanol, purified water, hibiscus flower extract and additives are prepared according to weight percentage;

[0040] 2) Stirring pre-dispersion: Put the above-mentioned water-soluble toner, water-soluble acrylic resin, polyether surfactant, isopropanol and 50-80% pure water into the beating pot for high-speed pre-dispersion;

[0041] 3) Grinding and fine dispersion: Send the dispersed materials into the sand mill for sand grinding and dispersion. When the fineness of the materials is lower than 15 μm, send the materials into the ink mixing pot;

[0042] 4) Adjust the ink: Add the hibiscus flower extract, additives and the remaining purified water prepared above, and mix evenly to obtain the product.

[0043] The hibiscus flower (ar...

Embodiment 1

[0056] Raw materials: the weight percentage of specific components is shown in Table 3.

[0057] The composition of the aqueous ink of table 3 embodiment 1

[0058]

[0059] Preparation process: Add water-soluble blue toner, water-soluble acrylic resin, polyether surfactant, isopropanol, triethylamine, silicone oil defoamer and two-thirds of pure water into the beating pot according to the above formula ratio In the middle, under 45°C, beating at high speed for 30-60 minutes for pre-dispersion, and then send the dispersed material into the sand mill for sand grinding and dispersion through the conveying pump. During sand grinding, the temperature of the material is kept below 45°C , when the fineness of the material is lower than 15μm, then pour the material into the ink mixing pot, add hibiscus flower extract, NSF067 wetting agent (water-based / oily), and the remaining one-third of pure water for further mixing To uniformity, adjust the ink until the inspection index is qu...

Embodiment 2

[0060] Example 2 With the weight percent batching of each component shown in table 4:

[0061] The composition of the aqueous ink of table 4 embodiment 2

[0062]

[0063] For the preparation process, refer to the preparation process of Example 1.

[0064] The light fastness of the ink (non-decolorization) is measured by a professional measurement method for printed matter and printing ink. The principle is: under the specified conditions, the test sample and the blue wool standard sample are exposed to the xenon arc lamp at the same time, and the light fastness is evaluated by finding a level similar to the test sample in the blue wool standard sample. In the case of other formulations remaining unchanged, the light fastness of the non-color-changing water-based ink added with hibiscus flower extract is 1-3 grades higher than that of water-based ink without added hibiscus flower extract.

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Abstract

The invention discloses shrub althea flower extract containing non-discolouring water-based ink and a preparation method thereof. The shrub althea flower extract containing non-discolouring water-based ink has anti-discolouring and anti-fading effects, so that a pattern printed just can be bright-coloured; meanwhile, the bright-coloured pattern of a printing product is still fresh after the printing product is placed for a long time, and people can have a feeling that colour of the pattern is not changed.

Description

technical field [0001] The invention relates to the field of printing inks, in particular to a color-changing water-based ink containing hibiscus flower extract and a preparation method thereof. Background technique [0002] Water-based ink is referred to as ink for short. It is mainly made of water-soluble resin, organic pigment, solvent and related additives through compound grinding. Water-based inks are mainly flexo printing and gravure printing, especially suitable for packaging and printing products that require strict hygiene conditions such as tobacco, alcohol, food, beverages, medicines, and children's toys. Water-based inks mainly use water as a solvent. Water-based ink does not contain volatile toxic organic solvents, has no adverse effects on the health of printing machine operators during the printing process, has no pollution to the atmospheric environment, and has no pollution to the printed matter itself. Since ink is non-flammable, it can also eliminate th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/03
Inventor 肖学俊
Owner 苏州科德教育科技股份有限公司
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