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A kind of water-based edible inkjet and its preparation method

An inkjet and water-based technology, which is applied in the field of water-based edible inkjet and its preparation, can solve the problems of being harmful to the human body and not being able to mark the identity verification, and achieve strong coloring power, excellent adhesion fastness, and smooth ink output. Effect

Inactive Publication Date: 2012-02-01
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dye-based inkjet is made by dissolving dyes of different shades and chemical structures in a water-based mixed solvent system. This mixed solvent system contains a variety of different uses and different types of additives, all of which are harmful to the human body. Mark the outer packaging of the food, but cannot mark the identity of the food itself

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Mix polylactic acid with a molecular weight of 100,000, deionized water, and edible ethanol at a mass ratio of 9:20:21, then heat at 60°C and stir at a speed of 5000r / min until the polylactic acid is completely dissolved (this implementation Stirring time is 30 minutes in the example), obtains the resin liquid of edible ink-jet;

[0023] (2) Take edible ethanol and deionized water as solvent in addition, and the mass ratio of edible ethanol, deionized water and natural amaranth is the ratio of 22:12:15, stir with the speed of 1000r / min after mixing with natural amaranth (stirring time is 60 minutes in the present embodiment) and completely dissolves to obtain the color paste of edible inkjet;

[0024] (3) After blending the resin liquid obtained in step (1) with the color paste obtained in step (2), add salt and soybean oil, and the mass ratio of resin liquid, color paste, salt and soybean oil is 50:49:0.5: 0.5, and then emulsified with a shear emulsifier for 1.5 h...

Embodiment 2

[0028] (1) Mix polylactic acid with a molecular weight of 150,000, deionized water, and edible ethanol at a mass ratio of 10:20:20, then heat at 70°C and stir at a speed of 800r / min until the polylactic acid is completely dissolved (this implementation Stirring time is 60 minutes in the example), obtains the resin liquid of edible ink-jet;

[0029] (2) In addition, take edible ethanol and deionized water as solvents, and mix the edible ethanol, deionized water and brilliant blue at a ratio of 23:13:13 and stir at a speed of 1000r / min until bright blue Blue dissolves completely (stirring time is 30 minutes in the present embodiment), obtains the color paste of edible ink-jet;

[0030] (3) After blending the resin liquid obtained in step (1) with the color paste obtained in step (2), add salt and soybean oil, and the mass ratio of resin liquid, color paste, salt and soybean oil is 50:49:0.8: 0.2, and then emulsified with a shear emulsifier for 1 hour to obtain a water-based edi...

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Abstract

The invention discloses a waterborne edible jet ink and a preparation method thereof. The preparation method comprises the following steps: mixing polylactic acid, deionized water and edible alcohol in a weight ratio of 8-11:18-24:15-21, heating at 60-70 DEG C, stirring in a rotating speed of 800-5000r / min to ensure that polylactic acid is completely dissolved and obtain a resin solution; mixing edible alcohol, deionized water and edible pigment in a ratio of 20-24:8-14:10-15, wherein edible alcohol and deionized water are used as solvent; stirring in a rotating speed of 800-5000r / min for dissolving to obtain color paste, mixing the resin solution with color paste, and adding table salt and soybean oil to emulsify for 1-1.5h and obtain the finished product, wherein the weight ratio of resin solution to color paste, table salt and soybean oil is 41-56:38-49:0.5-5:0.2-5. The method of the invention is easy and accessible, and the obtained jet ink has good color fastness, is nontoxic and environmentally friendly, and can be directly used for marking medicines and food, thus benefiting the safety management of food.

Description

technical field [0001] The invention relates to an inkjet and a preparation method thereof, in particular to a water-based edible inkjet and a preparation method thereof. Background technique [0002] Modern industrial printing is just-in-time production, on-demand production, and the promotion of technological innovation in the rapid growth of the consumer sector. It is one of the markets that most accept digital printing in the packaging market. It has an urgent and huge demand for direct digital printing systems. As a high-tech, inkjet printing is widely used in various modern automatic printing industrial production lines. It can use electronic control methods to use the required markings for food, beverages, cosmetics, medical, chemical, tobacco and alcohol On the outer packaging of products such as products, the shelf life, production batch number, specification size, product composition, product quantity, bar code symbol, trademark, stamp, label, etc. are printed, but...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/10C09D11/32
Inventor 钱俊马立胜
Owner WUHAN UNIV
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