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Polyurethane based water-based ink and method for preparing same

A water-based ink and water-based technology, applied in the preparation of polyurethane-based water-based inks and the field of polyurethane-based water-based inks, can solve the problems of difficult drying time control, unsatisfactory water resistance, and numerous processes, achieving easy drying time and low production costs. , Control the effect of drying time

Inactive Publication Date: 2008-10-15
XIAN UNIV OF TECH
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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 provide a polyurethane-based water-based ink, which solves the problems of unsatisfactory water resistance, poor gloss and difficult control of drying time in the existing water-based ink
[0007] Another object of the present invention is to provide the preparation method of above-mentioned polyurethane-based water-based ink, overcome the existing preparation method complex equipment, various processes, the problem of high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The preparation method of water-based ink of the present invention is,

[0029] Firstly, weigh 50%-58% of the water-based polyurethane emulsion, 38%-46% of the water-based color paste, 1%-1.5% of the wetting agent, 1%-2% of the surfactant and 1%-2% of the defoamer according to the mass percentage. 1.5% to 2%, the total mass is 100%; then mix and stir all the weighed components for 1 to 1.5 hours; finally pass through a 120-mesh filter to obtain the product.

Embodiment 1

[0031] According to the content percentage of each component shown in Table 1, four groups of blue polyurethane-based water-based inks were prepared, and the main performance indicators of the prepared water-based inks were tested. The results are shown in Table 3.

[0032] Table 1 The mixing quality ratio table of four groups of water-based blue polyurethane-based inks

[0033] group

Embodiment 2

[0035] According to the content percentage of each component shown in Table 2, four groups of white polyurethane-based water-based inks were prepared, and the main performance indicators of the prepared water-based inks were tested. The results are shown in Table 3.

[0036] Table 2 The mixing mass ratio table of four groups of water-based white polyurethane-based water-based inks

[0037] group

Water-based poly

Urethane Lotion

Titanium dioxide

color paste

D

Surfactant

Defoamer

when stirring

between

White 5

54％

42％

Fluorocarbon modified

Polyacrylic acid

Esters 1.5%

Anionic fluorocarbon

1%

Modified silica

1.5%

1 hour

White 6

50％

46％

Fluorocarbon modified

Polyether 1%

Anionic fluorocarbon

1.5%

Modified silica

1.5%

1.2 hours

White 7

51％

...

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PUM

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Abstract

The invention discloses potyurethane-based water-soluble ink. The ink consists of the following compositions in percentage by mass: 50 to 58 percent of water-soluble potyurethane emulsion, 38 to 46 percent of water-soluble color sizing, 1 to 1.5 percent of wetting agent, 1 to 2 percent of surface active agent and 1.5 to 2 percent of defoaming agent; the total mass is 100 percent. The invention also discloses a method for making the potyurethane-based water-soluble ink; firstly, water-soluble potyurethane emulsion, water-soluble color sizing, wetting agent, surface active agent and defoaming agent with 100 percent of the total mass are weighed according to the mass percentage; secondly, the total weighed compositions are mixed and stirred for 1 to 1.5 hour; finally, the total compositions are filtered by a filter screen with 120 meshes, thereby obtaining the ink. The water-soluble ink can solve the disadvantages of imperfect water resistance, poor glossiness and other performances of the prior water-soluble ink, has good water resistance, wearing resistance and glossiness, strong adhesive force, simple process and convenient facture and can meet the need of high-grade water-soluble printing.

Description

technical field [0001] The invention belongs to the technical field of printing materials, relates to a polyurethane-based water-based ink, and also relates to a preparation method of the polyurethane-based water-based ink. Background technique [0002] Solvent-based ink (also known as oil-based ink) is the largest source of pollution in the printing industry. Solvent-based ink is composed of binders, fillers, additives and other substances. The binder contains about 40-50% of organic solvents. Long-term exposure It will damage the skin of the human body; at the same time, passive inhalation of air with high content of organic solvents will cause chronic poisoning and pose a great threat to human health. After the organic solvent in the solvent-based ink volatilizes, it will chemically react with some gases in the air to generate ozone and smog, which seriously pollutes the air and destroys the ecological balance. In 2006, the world's annual output of ink exceeded 10 millio...

Claims

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Application Information

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IPC IPC(8): C09D11/10C09D11/102
Inventor 方长青陈瑞周世生任鹏刚骆光林
Owner XIAN UNIV OF TECH
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