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A kind of offset printing ink resin

A technology of offset printing ink and resin, which is applied in the field of ink resin, can solve difficult problems, and achieve the effects of high viscoelasticity, good pigment wettability, and good stability

Active Publication Date: 2018-10-12
桂林兴松林化有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the viscosity of ordinary rosin phenolic modified resin is less than 7000mpa s / 25℃, and the tolerance of n-heptane is less than 5ml / 2g, which is difficult to be used in offset printing sheet-fed ink

Method used

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  • A kind of offset printing ink resin
  • A kind of offset printing ink resin
  • A kind of offset printing ink resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Take the raw material by the following parts by weight:

[0027]

[0028] 2) Add the proportioned amount of rosin into the microwave reactor, adjust the microwave power to 480W, and keep it warm for 10 minutes until it completely melts;

[0029] 3) Add phenolic condensation solution, mix and stir evenly with the melted rosin in step 2), adjust the microwave power to 530W, and keep warm for 25 minutes;

[0030] 4) Continue to add desiccant and vegetable oil, adjust the microwave power to 530W, and keep it for 10 minutes;

[0031] 5) Finally, add diamond powder, stir mechanically for 20 minutes, take out the product, and dry it in vacuum.

[0032] The above desiccant is a mixture of 20 parts by weight of starch, 5 parts by weight of methylcellulose and 5 parts by weight of calcium chloride.

[0033] The above-mentioned vegetable oil is a mixture of 20 parts by weight of linseed oil and 20 parts by weight of soybean oil.

[0034] The preparation method of above-me...

Embodiment 2

[0038] 1) Take the raw material by the following parts by weight:

[0039]

[0040] 2) Add the proportioned amount of rosin into the microwave reactor, adjust the microwave power to 470W, and keep it warm for 13 minutes until it completely melts;

[0041] 3) Add phenolic condensation solution, mix and stir evenly with the melted rosin in step 2), adjust the microwave power to 535W, and keep warm for 22 minutes;

[0042] 4) Continue to add desiccant and vegetable oil, adjust the microwave power to 540W, and keep it for 8 minutes;

[0043] 5) Finally, add diamond powder, stir mechanically for 22 minutes, take out the product, and dry it in vacuum.

[0044] The above desiccant is a mixture of 17 parts by weight of starch, 6 parts by weight of methylcellulose and 6 parts by weight of calcium chloride.

[0045] The above-mentioned vegetable oil is a mixture of 22 parts by weight of linseed oil and 18 parts by weight of soybean oil.

[0046] The preparation method of above-men...

Embodiment 3

[0050] 1) Take the raw material by the following parts by weight:

[0051]

[0052] 2) Add the proportioned amount of rosin into the microwave reactor, adjust the microwave power to 465W, and keep it warm for 15 minutes until it completely melts;

[0053] 3) Add phenolic condensation liquid, mix and stir evenly with the melted rosin in step 2), adjust the microwave power to 545W, and keep warm for 20 minutes;

[0054] 4) Continue to add desiccant and vegetable oil, adjust the microwave power to 545W, and keep it for 7 minutes;

[0055] 5) Finally, add diamond powder, stir mechanically for 25 minutes, take out the product, and dry it in vacuum.

[0056] The above desiccant is a mixture of 15 parts by weight of starch, 7 parts by weight of methylcellulose and 7 parts by weight of calcium chloride.

[0057] The above-mentioned vegetable oil is a mixture of 25 parts by weight of linseed oil and 15 parts by weight of soybean oil.

[0058] The preparation method of above-menti...

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Abstract

The invention relates to the technical field of resin for printing ink, in particular to offset printing ink resin.The offset printing ink resin is prepared from, by weight, 10-20 parts of rosin, 30-40 parts of phenolic aldehyde condensed liquid, 3-9 parts of vegetable oil, 1-5 parts of drying agent and 0.02-0.09 part of diamond powder.All properties of the offset printing ink resin meet the use requirement of offset printing ink, and the offset printing ink resin has rapid attachment, high glossiness, good pigment wettability and water and ink balance, high viscoelasticity and good onboard stability, and further has remarkable abrasion resistance and high-temperature resistance.

Description

technical field [0001] The invention relates to the technical field of ink resins, in particular to an offset printing ink resin. Background technique [0002] Offset printing is the most important printing method at present, and its characteristic is that fountain solution needs to be used in the printing process, so offset printing ink requires good water resistance. In the past, the binders of offset printing inks were mainly vegetable oils such as linseed oil, but now most of them have been replaced by various resins with better performance. Common resins include rosin-modified phenolic resins, alkyd resins, and polyurethane alkyd resins. The general ink also contains petroleum solvent, which is equivalent to the head fraction of aviation kerosene and the tail fraction of light diesel oil. This petroleum solvent contains more polycyclic aromatic hydrocarbons, which have a large amount of residue on printed matter and a long duration. Whether it is harmful to children or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/08C09D11/103C09D11/06C09D11/03C08G8/24
CPCC08G8/24C09D11/03C09D11/06C09D11/08C09D11/103
Inventor 范业鹏范辂胡晓明董林鑫刘桂芳黄红秀兰永新
Owner 桂林兴松林化有限责任公司
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