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Antiemulsion vehicle for high speed printing environment-friendly offset printing ink and production method thereof

A technology for high-speed printing and offset printing inks, applied in inks, applications, household appliances, etc., can solve problems that affect the high-speed printing performance of inks, poor ink balance performance, etc., to improve uniformity and transparency, avoid side reactions, and improve production processes simple effect

Active Publication Date: 2009-09-16
CHINA BANKNOTE INK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional offset printing inks use rosin-modified phenolic resin, which can meet the high-speed printing of paper, but its water-ink balance performance on printing equipment is not good, and the anti-emulsification performance needs to be improved. Even if additives are added during ink preparation, it is difficult to fundamentally Solve problems while affecting high-speed printing performance of inks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Formula: (weight percentage)

[0034] High-structure phenolic resin 32%;

[0035] Cyclized rubber 2%;

[0036] Linseed oil 30%;

[0037] Tung oil 10%;

[0038] Aluminum isooctanoate 1%;

[0039] Tung oil fatty acid methyl ester 25%.

[0040] The high-structure phenolic resin is a rosin-modified phenolic resin with a weight average molecular weight of 55,000 and a methylol content of less than 1%;

[0041] Cyclized rubber is CK450 of Cytec Corporation;

[0042] Preparation:

[0043] (1) In a nitrogen atmosphere, mix low-structure resin and vegetable oil, heat up to 180°C, and add high-structure phenolic resin;

[0044] (2) Then heat up to 240°C for 1 hour, then cool to 200°C, add vegetable oil fatty acid ester solvent, cool to 170°C, add gelling agent, keep for 1.5 hours to obtain the product with a viscosity of 13Pa·S / 40°C;

[0045] Use Hydroscope emulsifier to test the demulsification performance of the link material (drip medium is general fountain solution), and its wate...

Embodiment 2

[0047] Formula: (weight percentage)

[0048] High structure phenolic resin 30%

[0049] Low structure phenolic resin 5%

[0050] Tung oil 20%

[0051] Catalpa oil 5%

[0052] Laurel fatty acid methyl ester 40%

[0053] The high-structure phenolic resin is a rosin-modified phenolic resin with a weight average molecular weight of 200,000 and a methylol content of less than 1%;

[0054] The weight average molecular weight of low-structure phenolic resin is 1500;

[0055] The cyclized rubber is CK450 of Cytec Corporation;

[0056] Preparation:

[0057] (1) In a nitrogen atmosphere, mix low-structure resin and vegetable oil, heat up to 160°C, and add high-structure phenolic resin;

[0058] (2) Then increase the temperature to 220°C for 0.5 hour, then lower the temperature to 190°C, add the vegetable oil fatty acid ester solvent, reduce the temperature to 160°C, add the gelling agent, and keep for 0.5 hour to obtain the product with a viscosity of 20Pa·S / 40°C;

[0059] Use Hydroscope em...

Embodiment 3

[0061] Formula: (weight percentage)

[0062] High structure phenolic resin 30%

[0063] Low structure resin 5%

[0064] Vegetable oil 30%

[0065] Aluminum naphthenate 5%

[0066] Coconut oil fatty acid 2-ethylhexyl ester 30%.

[0067] The high-structure phenolic resin is a rosin-modified phenolic resin with a weight average molecular weight of 70,000 and a methylol content of less than 1%;

[0068] The low-structure resin is a 1:1 (weight ratio) mixture of CK514 from Cytec Corporation and a phenolic resin with a weight average molecular weight of 1000;

[0069]Vegetable oil is a mixture of linseed oil and tung oil, with a weight ratio of 1:1.

[0070] The preparation method is the same as in Example 1.

[0071] The hydroscope emulsifier was used to test the demulsification performance of the link material (drip medium is general fountain solution), and its water absorption is 22mL per 100 grams of ink, which is significantly less than the water absorption of the general offset ...

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Abstract

The invention provides an antiemulsion vehicle for a high speed printing environment-friendly offset printing ink and a production method thereof. The vehicle comprises the following compositions in percentage by weight: 10 to 40 percent of high structure phenolic resin, 1 to 10 percent of low structure resin, 20 to 40 percent of vegetable oil, 0 to 5 percent of gel, and 10 to 40 percent of vegetable oil fatty acid ester solvent. The vehicle does not contain aromatic solvent, petroleum resin and the like, has content indexes of VOC and heavy metal in accordance with related technical requirement of environmental standards products, can give excellent antiemulsion performance to ink, excellent bonding strength to neutral papers and other base materials, and is applicable to the high speed printing with quick drying. The method has a simple production process, after the vegetable oil fatty acid ester solvent is insulated in resin, unique process is added before gelling, so that occurrence of high temperature color change and side reactions of the vegetable oil fatty acid ester solvent is prevented, and the evenness and transparency of the vehicle is improved.

Description

Technical field [0001] The invention relates to a binder for offset printing inks and a production method, in particular to a binder for high-speed printing environment-friendly offset printing inks and a production method. Background technique [0002] In the printing industry, printing inks containing a large amount of mineral oil volatilize a large amount of organic compounds during the production and printing process, which can easily cause serious environmental pollution and endanger the health of workers. Mineral oil is also a non-renewable resource, and it is of great significance to find a substitute for mineral oil-based printing inks. Traditional offset printing inks use rosin-modified phenolic resin, which can meet the high-speed printing of paper, but its ink-water balance performance on printing equipment is not good, and its anti-emulsification performance needs to be improved. Even if additives are added during ink preparation, it is difficult to fundamentally Solv...

Claims

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Application Information

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IPC IPC(8): C08L61/14C09D11/10C09D11/033C09D11/06C09D11/102C09D11/103
Inventor 李青胡战锋章星孟庆飞赵长富齐永路蒋煜高东钱浩亮夏曦洁
Owner CHINA BANKNOTE INK
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