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Method for preparing environment-friendly water-based ink

A kind of water-based ink, environmental protection technology, applied in the direction of ink, household utensils, applications, etc., can solve the problems of large residue, endangering the health of users, and long duration, etc., and achieve good gloss, good environmental protection, and rich sources Effect

Inactive Publication Date: 2016-07-13
CHANGZHOU OPTICAL MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention: the traditional ink contains 35-40% of high-boiling petroleum solvent, the solvent contains more polycyclic aromatic hydrocarbons, and the 3,4-benzopyridine, 3-nitro Benzophenone, etc. also contain carcinogenic ingredients, which have a large residual amount on printed matter and a long duration, which will endanger the health of users. A kind of preparation method of environmentally friendly water-based ink is provided. The present invention extracts tung oil from tung oil fruit. Reaction of tung oil and glycerin to obtain tung oil-based diol, and reaction of tung oil-based diol and water-based polyurethane to obtain tung oil-modified polyurethane emulsion as ink binder, mixing the binder with water solvent, pigments, fillers, and additives for environmental protection Type water-based ink, the present invention uses water as a solvent and tung oil modified polyurethane emulsion as a connecting material, the ink is clean and pollution-free after volatilization, and has good environmental protection, and the materials printed with it will not produce toxic and harmful to human body after packaging products. The substance, and the ink drying speed is fast, the gloss is good, the tinting strength is good, and it has a wide range of market value

Method used

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Examples

Experimental program
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Effect test

example 1

[0019] 7. First weigh 2kg of tung oil fruit and wash it, crush it with a jet mill and pass it through a 100-mesh standard sieve, mix the sieved tung oil fruit powder and distilled water at a solid-to-liquid ratio of 1:5, and put it into a microwave extractor Microwave extraction at 45°C for 1h, filter to remove the filter residue, transfer the filtrate to a rotary evaporator, reduce the pressure to 1.2kPa, and remove the distilled water by rotary evaporation at 60°C to obtain tung oil; After mixing tung oil and glycerin, put it into a three-necked flask equipped with a stirrer and a thermometer, then add tetrabutyl titanate of 1% of the total mass of tung oil as a catalyst, and feed nitrogen into the flask at a rate of 5 mL / min until it is replaced. Move all the air into a 200°C oil bath, start the stirrer and stir at a speed of 400r / min for 3 hours; after the reaction, pour the reaction solution into an equal volume of deionized water, place it on a shaker for 1 hour, and imme...

example 2

[0022] 8. First weigh 2.5kg of tung oil fruit and wash it, crush it with a jet mill and pass it through a 100-mesh standard sieve, mix the sieved tung oil fruit powder and distilled water at a solid-to-liquid ratio of 1:5, and put it into a microwave extractor Microwave extraction at 50°C for 1.5h, filter to remove the filter residue, transfer the filtrate to a rotary evaporator, reduce the pressure to 1.3kPa, and remove distilled water by rotary evaporation at 65°C to obtain tung oil; The obtained tung oil and glycerin were mixed and put into a three-necked flask equipped with a stirrer and a thermometer, then tetrabutyl titanate with 1% of the total mass of tung oil was added as a catalyst, and nitrogen gas was introduced into the flask at a rate of 5 mL / min until the Move all the air in the bottle into a 210°C oil bath, start the stirrer and stir at a speed of 450r / min for 4 hours; after the reaction, pour the reaction solution into an equal volume of deionized water, place ...

example 3

[0025] 9. First weigh 3kg of tung oil fruit and wash it, crush it with a jet mill and pass it through a 100-mesh standard sieve, mix the sieved tung oil fruit powder and distilled water at a solid-to-liquid ratio of 1:5, and put it into a microwave extractor Microwave extraction at 55°C for 2 hours, filter to remove the filter residue, transfer the filtrate to a rotary evaporator, reduce the pressure to 1.5kPa, and remove the distilled water by rotary evaporation at 70°C to obtain tung oil; After mixing tung oil and glycerin, put it into a three-necked flask equipped with a stirrer and a thermometer, then add tetrabutyl titanate of 1% of the total mass of tung oil as a catalyst, and feed nitrogen into the flask at a rate of 5 mL / min until it is replaced. Move all the air into a 220°C oil bath, start the stirrer and stir the reaction at 500r / min for 5 hours; after the reaction, pour the reaction solution into an equal volume of deionized water, place it on a shaker for 2 hours, ...

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Abstract

The invention discloses a method for preparing environment-friendly water-based ink, and belongs to the technical field of ink preparing.The method includes the steps that tung oil is extracted from tung oil fruits, the tung oil and glycerol are reacted to obtain tung-oil-base dihydric alcohol, the tung-oil-base dihydric alcohol and water-based polyurethane chain extension are reacted to obtain tung-oil-modified polyurethane emulsion to serve as an ink connecting material, and the connecting material, hydrosolvent, pigment, padding and an assistant are mixed to obtain the environment-friendly water-based ink.According to the method, water serves as a solvent, the tung-oil-modified polyurethane emulsion serves as the connecting material, volatilized ink is clean and free of pollution, and has the good environmental protection performance, substances toxic and harmful to the human body can not be generated after a product is packaged with a material printed by the environment-friendly water-based ink, and the ink is high in drying speed and good in glossiness and tinting strength, and has the wide market value.

Description

technical field [0001] The invention discloses a preparation method of an environment-friendly water-based ink, which belongs to the technical field of ink preparation. Background technique [0002] Traditional ink is a uniform mixture of pigments (including colored pigments and fillers), mineral oil, additives and other substances. It can be printed and dried on the printed object. It has a color and a certain fluidity. In my country, the ink manufacturing industry basically produces traditional synthetic resin inks, which contain 35% to 40% of high-boiling petroleum solvents, so they contain more polycyclic aromatic hydrocarbons, and 3,4 of them are -Benzopyridine, 3-nitrobenzophenone, etc. also contain carcinogenic ingredients, which have a large amount of residue on printed matter and last for a long time, which will endanger the health of users and are also an important source of pollution in the ink production process. Today, when environmental pollution is increasingl...

Claims

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Application Information

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IPC IPC(8): C09D11/102C09D11/033C08G18/66C08G18/12C08G18/36
CPCC09D11/102C08G18/12C08G18/6662C09D11/033
Inventor 陈毅忠林茂平王统军
Owner CHANGZHOU OPTICAL MATERIAL
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