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Printing ink for wash label and preparation method thereof

A technology of ink and glycerin, applied in the printing field, can solve problems such as poor fastness to rubbing, easy bleeding, and poor environmental protection of inks

Inactive Publication Date: 2013-12-25
张家港市杨舍丝印工艺厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the inks used for washing labels on the market are not environmentally friendly, and the quality of the printed patterns is poor, easy to bleed, rough edges, poor rubbing fastness, and poor light fastness

Method used

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Examples

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Effect test

preparation example Construction

[0021] The embodiment of the present invention also discloses a preparation method of ink for washing labels, comprising the following steps:

[0022] S1. C.I. Direct Black 168, 2.5% to 3% C.I. Direct Black 19, 0.5% glycerin, 5% 1,3-dimethyl-3-imidazolinone, Add ionized water to 100% mix;

[0023] S2, heating and stirring the above mixture, then cooling, adding ethanol with a mass ratio of 3%, and continuing to stir;

[0024] S3. Using a membrane with a pore size of 0.4 μm, vacuum filtration to obtain the ink.

[0025] Washing mark is also called washing mark, washing mark, washing cloth, and its materials are: ribbon, Dupont paper, coated tape, woven edge tape, etc.

Embodiment 1

[0028] The printing ink in the present embodiment comprises 0.22% C.I. direct black 168, 2.8% C.I. direct black 19, 0.5% glycerol, 5% 1,3-dimethyl-3-imidazoline by mass percentage ketone, and the balance is deionized water.

[0029] Its preparation method is as follows:

[0030] S1, the mass percentage is 0.22% C.I. Direct Black 168, 2.8% C.I. Direct Black 19, 0.5% glycerin, 5% 1,3-dimethyl-3-imidazolidinone, add deionized water to 100% mix;

[0031] S2. Heat and stir the above mixture at 80°C for 1 hour, cool to 40°C, add 3% ethanol, and continue to stir for 30 minutes;

[0032] S3. Using a membrane with a pore size of 0.4 μm, perform vacuum filtration to obtain the ink for washing the mark.

[0033] Tests and results:

[0034] The physical properties of the above ink at 24°C are as follows: surface tension 33.4Mn / m (measured by BZY-2 automatic surface tension meter), viscosity 3.40cP (measured by R / S coaxial cylinder rheometer), ink particle average The particle size is...

Embodiment 2

[0036] The printing ink in the present embodiment comprises 0.25% C.I. direct black 168, 3% C.I. direct black 19, 0.5% glycerin, 5% 1,3-dimethyl-3-imidazoline by mass percentage ketone, and the balance is deionized water.

[0037] Its preparation method is as follows:

[0038] S1, the mass percentage is 0.25% C.I. direct black 168, 3% C.I. direct black 19, 0.5% glycerin, 5% 1,3-dimethyl-3-imidazolidinone, add deionized water to 100% mix;

[0039] S2. Heat and stir the above mixture at 80°C for 1 hour, cool to 40°C, add 3% ethanol, and continue to stir for 30 minutes;

[0040] S3. Using a membrane with a pore size of 0.4 μm, perform vacuum filtration to obtain the ink for washing the mark.

[0041] To sum up, the pattern printed with the black ink obtained by this method has good quality, is not easy to bleed, does not have rough edges, has good rubbing fastness, has certain light fastness, and the preparation method is simple and economical.

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Abstract

The invention discloses printing ink for wash labels, which comprises the following components according to mass percent: 0.22-0.4% of C.I. direct black 68, 2.5-3% of C.I. direct black 19, 0.5% of glycerol, 5% of 1,3-dimethyl-3-imidazolone and the balance of deionized water. The invention further discloses a preparation method of the printing ink. A pattern printed by the printing ink prepared by the method is good in quality, unlikely to bleed, free of bur and good in fastness to rubbing, and the pattern has certain light fastness.

Description

technical field [0001] The invention belongs to the field of printing, and more specifically relates to an ink for washing labels and a preparation method thereof. Background technique [0002] Ink is an important material for printing packaging materials. It expresses patterns and characters on the substrate through printing. The ink includes main components and auxiliary components. They are evenly mixed and rolled repeatedly to form a viscous colloidal fluid. It is composed of pigments, linking materials, additives and solvents. It is used for various printing of books, periodicals, packaging and decoration, architectural decoration, trademarks, etc. With the increase of social demand, the variety and output of ink have also expanded and increased accordingly. [0003] At present, the inks for cleaning labels on the market are not environmentally friendly, and the printed patterns are of poor quality, easy to bleed, rough edges, poor rubbing fastness, and poor light fas...

Claims

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Application Information

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IPC IPC(8): C09D11/02
Inventor 戴积法戴强王诚
Owner 张家港市杨舍丝印工艺厂
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