Modified polyurethane resin and benzene-free and ketone-free composite plastic ink containing same, as well as preparation methods thereof

A polyurethane resin and polyurethane technology, applied in the field of modified polyurethane resin and its preparation, can solve the problems of development and promotion of bound chloropropane ink, unstable chlorine atom, difficult application, etc., and achieve good safety and health, bright and stable color. , the effect of prolonging the storage life

Inactive Publication Date: 2010-09-15
新东方油墨有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chloropropane ink requires the use of benzene as the main solvent, supplemented by esters and ketones to adjust the volatilization rate, and the instability of chlorine atoms in the resin is difficult to apply to packaging that requires boiling and cooking. Seriously hampered the further development and promotion of chloropropane ink

Method used

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  • Modified polyurethane resin and benzene-free and ketone-free composite plastic ink containing same, as well as preparation methods thereof
  • Modified polyurethane resin and benzene-free and ketone-free composite plastic ink containing same, as well as preparation methods thereof
  • Modified polyurethane resin and benzene-free and ketone-free composite plastic ink containing same, as well as preparation methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The modified polyurethane resin described in this example is a segmented polyurethane synthesized from vegetable oil, with an average molecular weight of 10,000-50,000. The preparation method of modified polyurethane resin is: firstly, vegetable oil, ethylene glycol and adipic acid are reacted to generate polyester polyol, and the reaction equation is as follows:

[0029]

[0030] Then, in a closed environment, the moisture generated by the reaction is removed by distillation under reduced pressure, and the obtained polyester polyol is further reacted with diisocyanate to generate a vegetable oil block-type modified polyurethane resin prepolymer. The reaction equation is as follows:

[0031]

[0032] Among them, R is a hydrocarbon group, and R' is a vegetable oil embedded polyester polyol; it can be seen from the above formula that an excessive amount of diisocyanate reacts with a polyester polyol to first make a prepolymer with an isocyanate group, and then under ...

Embodiment 2

[0035]The benzene-free and ketone-free composite plastic ink described in this embodiment includes modified polyurethane resin, aldehyde and ketone resin, pigment, dispersant, isopropanol, ethanol, and ethyl acetate. The weight of each component is 25 parts of modified polyester polyurethane, 5 parts of aldehyde and ketone resin, 1 part of dispersant, 25 parts of pigment, 10 parts of isopropanol, 20 parts of ethyl acetate and 10 parts of ethanol. The average molecular weight of the vegetable oil-modified polyurethane resin is 12000, the aldehyde and ketone resin is L-872 polyketone resin, the pigment is rutile titanium dioxide, and the dispersant is TM-950. The content of isopropanol and ethyl acetate is more than 99%, the content of benzophenone is less than 0.01%, and the adhesion promoter is titanate coupling agent HY-201.

[0036] The preparation method of the benzene-free and ketone-free composite plastic ink provided in this embodiment is made by the following steps:

...

Embodiment 3

[0044] In the benzene-free and ketone-free composite plastic ink described in this example, the weight content of each component is 25 parts of modified polyurethane resin, 6 parts of polyketone resin, 3 parts of dispersant, 0.5 part of anti-precipitation agent, 0.1 part of wax powder, and 2 parts of accelerator, 10 parts of ethanol, 15 parts of isopropanol, 25 parts of ethyl acetate, 10 parts of pigment, the wax powder is 3620 polyethylene wax, the pigment is permanent red 2BXL, the anti-sedimentation agent For F118.

[0045] The preparation method of the benzo-free and ketone-free composite plastic ink provided by the embodiment, its production process is as follows:

[0046] 1) Pre-dispersion, add modified polyurethane resin, matching resin, dispersant, ethyl acetate, isopropanol, and pigments into the pre-mixing dispersion tank according to the formula ratio of 1 / 3-2 / 3, and start the dispersion machine Stir it evenly, then gradually add the pigment and adhesion promoter i...

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Abstract

The invention relates to benzene-free and ketone-free composite plastic ink which comprises 25-35 parts of modified polyurethane resin, 5-10 parts of matching resin (polyketone resin), 0.5-1 part of dispersant, 7-15 parts of pigment, 2-4 parts of adhesion promoter, 0.1-0.3 part of wax powder, 10-15 parts of ethanol, 20-30 parts of acetic ether and 10-20 parts of isopropyl alcohol, wherein the matching resin is L-872 polyketone resin, the contents of the ethanol, the isopropyl alcohol and the acetic ether are all above 99%, the content of benzene and ketone substances is below 0.01%, the dispersant is TM-950, the adhesion promoter is a titanate coupling agent HY-201, and the wax powder is polyethylene wax. The benzene-free and ketone-free composite plastic ink takes the isopropyl alcohol, the acetic ether and the ethanol as diluents without the assistance of the benzene and ketone substances for dissolving. The benzene-free and ketone-free composite plastic ink has no harm to operators, society and environment from preparation and production to printing and use and has excellent safe and healthy property.

Description

technical field [0001] The invention relates to a resin compound, in particular to a modified polyurethane resin used in ink production, a preparation method thereof, an ink containing the modified polyurethane resin, and a preparation method of the ink. Background technique [0002] With the rapid development of the printing and packaging market and the increasing awareness of social environmental protection, the printing industry has higher and higher requirements for the printability and environmental protection of inks. Earlier polyamide inks did not have composite properties. Although the traditional chlorinated polypropylene plastic composite ink has mature production technology, complete printing process and good composite effect, its printed matter has excellent film-forming performance and bright color; moreover, in The current gravure ink market still occupies a certain proportion. However, the chloropropane ink requires the use of benzene as the main solvent, sup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/68C09D11/10C09D11/102
Inventor 樊家驹
Owner 新东方油墨有限公司
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