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Method for promoting drying after printing by offset ink

A technology of offset printing ink and water-based ink, which is applied in the direction of printing, printing machines, general parts of printing machinery, etc., can solve the problems of poor printing adaptability, storage stability, and long drying time, so as to promote the drying of offset printing ink and shorten production Cycle, reduce the effect of storage to dry time

Active Publication Date: 2010-02-17
CHINA BANKNOTE PRINTING & MINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of long drying time or poor printing adaptability and storage stability of offset printing inks in the prior art, and to provide a method for promoting drying (or drying) of offset printing inks after printing, that is, on paper Water-based ink drier is added to the surface sizing solution, and the ink drier is attached to the surface of the paper through sizing. When the offset printing ink is printed on the paper, the drier plays a role in drying and promotes the oxidation and polymerization of the ink.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare the water-based ink drier according to the following components in weight percent:

[0033] Aqueous Cobalt Drier 20%

[0034] Aqueous Manganese Drier 9%

[0035] Aqueous Calcium Drier 71%

[0036] Prepare the paper surface sizing solution according to the following components in weight percent:

[0037] Polyvinyl alcohol 5%

[0038] Melamine 1.2%

[0039] Urea 2.5%

[0040] Sodium Carboxymethyl Cellulose 0.5%

[0041] Water 90.8%

[0042] Then, the above-mentioned prepared water-based ink drier and paper surface sizing solution are operated as follows:

[0043] a. Prepare the paper surface sizing solution and water-based ink drier according to the following weight percentages

[0044] Paper surface sizing solution 93%

[0045] Water-based ink drier 7%

[0046] b. Attach the liquid prepared in step a to the surface of the paper by sizing;

[0047] c. drying the paper treated in step b, and dehydrating the water-based ink drier into an oil-based ink dri...

Embodiment 2

[0050] Prepare the water-based ink drier according to the following components in weight percent:

[0051] Aqueous Cobalt Drier 25%

[0052] Aqueous Barium Drier 75%

[0053] Prepare the paper surface sizing solution according to the following components in weight percent:

[0054] Polyvinyl alcohol 5%

[0055] Melamine 1.2%

[0056] Urea 2.8%

[0057] Water 91%

[0058] Then, the above-mentioned prepared water-based ink drier and paper surface sizing solution are operated as follows:

[0059] a. Prepare the paper surface sizing solution and water-based ink drier according to the following weight percentages

[0060] Paper surface sizing solution 95%

[0061] Water-based ink drier 5%

[0062] b. Attach the liquid prepared in step a to the surface of the paper by sizing;

[0063] c. drying the paper treated in step b, and dehydrating the water-based ink drier into an oil-based ink drier;

[0064] d. Print with offset printing ink on paper, the oily ink drier will play...

Embodiment 3

[0066] Prepare the water-based ink drier according to the following components in weight percent:

[0067] Aqueous Manganese Drier 40%

[0068] Aqueous Calcium Drier 60%

[0069] Prepare the paper surface sizing solution according to the following components in weight percent:

[0070] Alkyl ketene dimer 7%

[0071] Melamine 1.2%

[0072] Urea 2.8%

[0073] Water 89%

[0074] Then, the above-mentioned prepared water-based ink drier and paper surface sizing solution are operated as follows:

[0075] a. Prepare the paper surface sizing solution and water-based ink drier according to the following weight percentages

[0076] Paper surface sizing solution 94%

[0077] Water-based ink drier 6%

[0078] b. Attach the liquid prepared in step a to the surface of the paper by sizing;

[0079] c. drying the paper treated in step b, and dehydrating the water-based ink drier into an oil-based ink drier;

[0080] d. Use offset printing ink to print on the paper, and the oil-based i...

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PUM

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Abstract

The invention discloses a method for promoting drying after printing by offset ink, relating to the field of offset ink printing and aiming at solving the problems that the drying after the printing by the offset ink needs long time or the printing suitability and storage stability are poor in the prior art. The method comprises the following steps: a. a paper surface sizing solution and a water-based ink drier are prepared according to the following weight percent: 93-97 percent of the paper surface sizing solution and 3-7 percent of the water-based ink drier; b. the liquid prepared in step ais attached on a paper surface through a sizing mode; c. the paper treated in step b is dried, and the water-based ink drier is dewatered into an oily ink drier; and d. the paper is printed by usingthe offset ink and the oily ink drier exerts the role of promoting drying to accelerate the oxidation and skin formation of the offset ink.

Description

technical field [0001] The invention relates to the field of offset printing ink printing, in particular to a method for promoting rapid ink drying after offset printing ink printing. Background technique [0002] Drying of ink after printing is an important index of printing suitability of ink. Ink drying is the process of ink changing from liquid to solid ink film with certain strength. [0003] There are many ways to dry ink, among which oxidative polymerization drying is more common. [0004] The principle of oxidative polymerization drying ink drying is that the linking material of the ink contains a large amount of unsaturated bonds, and the polymerization reaction occurs under the participation of oxygen, so that the low-molecular organic matter is transformed into a network-like high-molecular organic matter, and the purpose of ink drying is realized. [0005] The biggest defect of oxidative polymerization drying ink is that it takes a long time to dry completely, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F23/04
Inventor 刘思君严英周正东
Owner CHINA BANKNOTE PRINTING & MINTING