Code-jetting ink and method for preparing same

An ink and coding technology, applied in ink, printing, household appliances, etc., can solve the problems of slow drying speed of coding ink, affecting the next process, poor adhesion fastness to the substrate, etc., to achieve good solvent resistance and storage stability. Good properties, clear ink imprint, good adhesion fastness

Inactive Publication Date: 2009-01-07
TIANJIN ANGEL CHEM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, inks used for jet printing numbers and other markings on paper products such as kraft paper bags and cartons often have poor adhesion fastness to the substrate, unclear jet imprints, and inability to distinguish the batch number mark, making the effect of the printed product unsatisfactory; Some inkjet inks have a slow drying speed, which directly affects the smooth progress of the next process; others have complex production processes, and the prepared inkjet inks are easy to block the printing nozzles during use because the fineness does not meet the requirements. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A coding ink prepared by weight from the following raw materials and solvents:

[0023] raw material:

[0024] Rosin modified resin 350g,

[0025] Nitrocellulose 1 / 4 second 100g,

[0026] Pigment or dye 50g,

[0027] Solvent:

[0028] Butanone (chemically pure) 300g,

[0029] Isopropanol (chemically pure) 80g,

[0030] Toluene (chemically pure) 120g.

[0031] The specific implementation steps are as follows:

[0032] (1) With 40% solvent 200g of the total solvent amount, including methyl ethyl ketone 120g, isopropanol 32g, toluene 48g, add pigment or dyestuff 50g under stirring at 2000 rpm speed, dissolve, the temperature control in the dissolution process At ≤50°C, after stirring, the pigment or dye is fully dissolved, and the fineness after dissolution is ≤5μm, and filtered into a pigment or dye solution for later use;

[0033] (2) rosin modified resin 350g, nitrocellulose 1 / 4 second 100g and 40% solvent 200g of total solvent amount, including methyl ethyl ket...

Embodiment 2

[0036] A coding ink prepared by weight from the following raw materials and solvents:

[0037] raw material:

[0038] Rosin modified resin 250g,

[0039] Nitrocellulose 1 / 4 second 150g,

[0040] Pigment or dye 100g,

[0041] Solvent:

[0042] Butanone (chemically pure) 200g,

[0043] Isopropanol (chemically pure) 150g,

[0044] Toluene (chemically pure) 150g.

[0045] The specific implementation steps are as follows:

[0046] (1) With 200g of 40% solvent of the total solvent amount, including methyl ethyl ketone 80g, isopropanol 60g, toluene 60g, add pigment or dyestuff 100g under stirring at 2000 rev / min speed, dissolve, the temperature control in the dissolution process At ≤50°C, after stirring, the pigment or dye is fully dissolved, and the fineness after dissolution is ≤5μm, and filtered into a pigment or dye solution for later use;

[0047] (2) rosin modified resin 250g, nitrocellulose 1 / 4 second 150g and 40% solvent 200g of total solvent amount, including butanon...

Embodiment 3

[0050] A coding ink prepared by weight from the following raw materials and solvents:

[0051] raw material:

[0052] Rosin modified resin 300g,

[0053] Nitrocellulose 1 / 4 second 30g,

[0054] Pigment or dye 70g,

[0055] Solvent:

[0056] Butanone (chemically pure) 450g,

[0057] Isopropanol (chemically pure) 50g,

[0058] Toluene (chemically pure) 100g.

[0059] The specific implementation steps are as follows:

[0060] (1) With 40% solvent 240g of the total solvent amount, including methyl ethyl ketone 180g, isopropanol 20g, toluene 40g, add pigment or dyestuff 70g under stirring at 2000 rpm speed, dissolve, the temperature control in the dissolution process At ≤50°C, after stirring, the pigment or dye is fully dissolved, and the fineness after dissolution is ≤5μm, and filtered into a pigment or dye solution for later use;

[0061] (2) rosin modified resin 300g, nitrocellulose 1 / 4 second 30g and 40% solvent 240g of total solvent amount, including methyl ethyl keton...

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PUM

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Abstract

The invention relates to jet coding printing oil and a preparation method thereof; the ink is prepared with the following raw materials and solvent by the weight percent: 15 to 35 of rosin modified resin, 3 to 15 of nitrocotton, 2 to 10 of pigment or dye, 20 to 50 of butanone, 5 to 20 of isopropanol and 10 to 30 of toluol. The steps are as follows: (1) mixed solvent which accounts for 40 percent of the total solvent is added into the pigment or dye while being stirred at 2000r / min to be fully dissolved with the temperature equal to or lower than 50 DEG C and the fineness after dissolution less than or equal to 5 Mu m, and the product is filtered for stand-by; (2) the rosin modified resin, the nitrocotton and the mixed solvent which accounts for 40 percent of the total solvent are dissolved while being stirred at high speed equal to or lower than 40 DEG C, and filtered for stand-by after being fully dissolved; (3) the dissolved pigment or dye liquid and resin liquid are mixed with the rest mixed solvent under the temperature equal to or lower than 40 DEG C, and then stirred evenly. All indexes are as follows: color: close to the label; fineness: equal to or less than 5 Mu m; viscosity: 10-15s / layer 4# cup.25 DEG C. The printing ink has stable ink performance, is not easy to block printing nozzles; the printing ink mark is clear; the ink can be firmly adhered to the substrate, is friction resistant and becomes dry quickly.

Description

technical field [0001] The invention relates to the field of ink coatings, in particular to a coding ink and a preparation method thereof. Background technique [0002] At present, inks used for jet printing numbers and other markings on paper products such as kraft paper bags and cartons often have poor adhesion fastness to the substrate, unclear jet imprints, and inability to distinguish the batch number mark, making the effect of the printed product unsatisfactory; Some inkjet inks have a slow drying speed, which directly affects the smooth progress of the next process; others have complex production processes, and the prepared inkjet inks are easy to block the printing nozzles during use because the fineness does not meet the requirements. question. [0003] Therefore, to provide a coding ink with simple process, excellent spraying effect, and rapid drying and its preparation method is one of the problems to be solved urgently by researchers in this field. Contents of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/08B41J2/01
Inventor 沈乃源周继华周金泉刘庆华
Owner TIANJIN ANGEL CHEM GRP
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