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Water-expelling production process for offset printing magenta printing ink

A production process and ink technology, applied in ink, household utensils, applications, etc., can solve the problems of low ink quality and long working hours, and achieve the effect of saving working hours

Inactive Publication Date: 2008-10-15
SHANGHAI PEONY PRINTING INK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to provide a kind of existing printing ink production and manufacturing process, to overcome the defects of long working hours and low ink quality in the existing process

Method used

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Embodiment Construction

[0031] The present invention is a kind of water squeezing production process of offset printing magenta ink, and the weight proportion of this ink can be:

[0032] Magenta pigment 40-60%;

[0033] Wet slurry causticized calcium 5-15%;

[0034] Binder 30-50%;

[0035] ink oil 5-15%; and

[0036] Auxiliary 5-15%.

[0037] The squeeze production process includes the following steps:

[0038] a. Put undried water-containing magenta pigment, binder and water repellent into the kneader, and knead until the water is clear;

[0039] b. Under vacuum and high temperature conditions, extract moisture;

[0040] c. Roll the obtained base ink on a three-roller machine for 1-2 times;

[0041] d. Add ink oil and additives to adjust the ink to the predetermined index range; and

[0042] e. Filling with a filling machine.

[0043] The above-mentioned undried aqueous magenta pigment may be an undried pigment slurry containing a certain amount of water.

[0044] In a preferred embodiment...

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PUM

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Abstract

The invention relates to a wringing process for producing offset printing fuchsine ink. The process comprises the following steps that: firstly, hydrous fuchsine paint, wet pulp causticize calcium, a bonding material and a water resisting agent which are not dried are put to a kneading machine and kneaded till water is clear; secondly, moisture is extracted under the conditions of vacuum and high-temperature; thirdly, a based ink obtained is rolled on a three-roller machine for once or twice; fourthly, ink oil and an addition agent are added and the oil is adjusted to a preset index scope; finally, the ink is filled and packaged by a racking machine. The ink made by the wringing process of the invention is more exquisite than the ink made of dry powder, has larger colour density, good transparence, high luster, strong tinctorial strength and good emulsification resistance and can save man-hour.

Description

technical field [0001] The invention relates to a production process of offset printing magenta ink. Specifically, the production ink is produced by using a water-containing organic pigment filter cake through a water squeezing method and replacing water with oil. Background technique [0002] In the existing offset printing ink production process, dry powdered pigments are used. [0003] For example, the weight ratio of an existing magenta offset printing ink can be: [0004] Binder 50-70%; [0005] Magenta pigment 13-20%; [0006] ink oil 5-15%; and [0007] Auxiliary 5-15%. [0008] What magenta pigment wherein adopts is dry powder pigment, and its production process comprises the following steps: [0009] 1. Add pigments, binders, and part of ink oil into the batching tank; [0010] 2. Stir for 40-60 minutes at a speed of 500-1000RPM [0011] 3. Put the well-stirred material into a three-roll machine for grinding, pressure: 30-60Mpa, temperature: 50-70 degrees, af...

Claims

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Application Information

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IPC IPC(8): C09D11/02
Inventor 张涛顾俊章启荣
Owner SHANGHAI PEONY PRINTING INK
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