CN105017846A - Preparation method capable of improving bonding strength of ink - Google Patents

Abstract

The invention discloses a preparation method capable of improving the bonding strength of ink. In the preparation process of ink, rosin modified phenolic resin is added, due to the unique honeycomb structural characteristic, the rosin modified phenolic resin has good wetting performance with pigment, so that the bonding strength of the ink can be improved; moreover, the stability is good, and the application prospect is good.

Description

A kind of compound method improving ink adhesion intensity

Technical field

The present invention relates to a kind of novel ink, the ink that particularly a kind of bonding strength is high and compound method thereof, belong to ink chemical field.

Summary of the invention

Along with the development of press, ink application is also increasingly extensive, output constantly increases, China's ink industry in 2010 is produced and is reached all-time high, " Chinese ink industry production and marketing demand and investment forecasting analysis report are looked forward to the prospect " adds up, whole nation ink gross annual output amount amounts to 58.99 ten thousand tons, accounts for 14% of the whole world, exceedes Germany first, Japan occupies the second in the world.

Ink is a kind of to be mixed equably by pigment, low-melting ink vehicle and auxiliary agent etc. and through the gluey fluid of a kind of viscosity of repeat-rolling.In China, what ink production was produced substantially is traditional synthetic resins ink, containing the high point petroleum solvent of 35% ~ 40% in this kind of ink, thus containing more multiring aromatic hydrocarbon substance, and 3,4-benzo pyrroles, 3-nitro benzo ketone etc. are wherein also containing carcinogenic components, on printed matter, residual quantity is large, the survival time is long, can endanger user's health, is also the important source of pollution in Printing ink producing process simultaneously.Along with the attention degree of environmental protection is increasing, the reinforcement of Green Packaging concept, have the regulation limitations such as heavy metal content, packing material solvent residues amount and other VOC limit standard in other related fields such as food product pack especially, exploitation non-toxic ink is the study hotspot of current ink.

Solvent is made with vegetables oil, not only environmental protection but also the resource of available regenerative replaced non-renewable petroleum solvent to the ink of preparation, and when reclaiming, than traditional ink, deinking is easier to useless printed matter process, little to the damage of paper, but vegetable oil solvent adhesive power is not strong, preparing in ink process by adding Gum Rosin, the viscosity of ink can be increased, improve the bonding strength of ink.

The acid number of rosin self is higher, poor heat stability, after the condensation product addition of rosin and formaldehyde and phenols, and with the rosin modified phenolic resin of the esterified modification of polyvalent alcohol, due to the polynuclear plane feature of its uniqueness, can with pigment good wettability.Add rosin modified phenolic resin preparing in ink process, ink adhesion intensity can be improved, and stability is good.

Summary of the invention

The invention provides a kind of compound method improving ink adhesion intensity, the method is carried out as follows:

With one dispersion cylinder load 20% water, 25% vegetables oil, the thanomin of 15%, the silicone antifoam agent of 0.5% and 1% soybean lecithin wetting agent;

(2) press the rotating speed of 500-600 r/min, dispersed 2-3 hour;

(3) after dispersion, by liquid filtering;

(4) collect the emulsion of filtration, then pour in dispersion cylinder, add the water soluble acrylic resin of 25%, the rosin modified phenolic resin of 3%, the water soluble acrylic acid mill base of 10% successively, by the rotating speed of 600-800r/min, dispersed 2-4 hour;

(5) filter after finally adding the silicone antifoam agent of 0.5%, a kind of ink adding rosin modified phenolic resin.

The present invention has following advantages and characteristic:

(1) high, the good stability of this ink adhesion intensity;

(2) raw material sources are extensive, with low cost.

Embodiment

Embodiment one:

The water of 20% is loaded by a dispersion cylinder, 25% part of vegetables oil, the thanomin of 15%, the silicone antifoam agent of 0.5% and the soybean lecithin wetting agent of 1%, by the rotating speed of 500 r/min, dispersed 2 hours, after being uniformly dispersed, by liquid filtering, the emulsion of filtering is put in dispersion cylinder more again, add the water soluble acrylic resin of 25% successively, the rosin modified phenolic resin of 3%, the water soluble acrylic acid mill base of 10%, by the rotating speed of 600 r/min, dispersed 4 hours, filter after finally adding the silicone antifoam agent of 0.5 part, a kind of ink adding rosin modified phenolic resin.

Embodiment two:

The water of 20% is loaded by a dispersion cylinder, 25% part of vegetables oil, the thanomin of 15%, the silicone antifoam agent of 0.5% and the soybean lecithin wetting agent of 1%, by the rotating speed of 600 r/min, dispersed 3 hours, after being uniformly dispersed, by liquid filtering, the emulsion of filtering is put in dispersion cylinder more again, add the water soluble acrylic resin of 25% successively, the rosin modified phenolic resin of 3%, the water soluble acrylic acid mill base of 10%, by the rotating speed of 600 r/min, dispersed 4 hours, filter after finally adding the silicone antifoam agent of 0.5 part, a kind of ink adding rosin modified phenolic resin.

Embodiment three:

The water of 20% is loaded by a dispersion cylinder, 25% part of vegetables oil, the thanomin of 15%, the silicone antifoam agent of 0.5% and the soybean lecithin wetting agent of 1%, by the rotating speed of 500 r/min, dispersed 3 hours, after being uniformly dispersed, by liquid filtering, the emulsion of filtering is put in dispersion cylinder more again, add the water soluble acrylic resin of 25% successively, the rosin modified phenolic resin of 3%, the water soluble acrylic acid mill base of 10%, by the rotating speed of 800 r/min, dispersed 2 hours, filter after finally adding the silicone antifoam agent of 0.5 part, a kind of ink adding rosin modified phenolic resin.

Claims (1)

1. improve a compound method for ink adhesion intensity, the method comprises the steps:

With one dispersion cylinder load 20% water, 25% vegetables oil, the thanomin of 15%, the silicone antifoam agent of 0.5% and 1% soybean lecithin wetting agent;

(2) press the rotating speed of 500-600 r/min, dispersed 2-3 hour;

(3) after dispersion, by liquid filtering;

(4) collect the emulsion of filtration, then pour in dispersion cylinder, add the water soluble acrylic resin of 25%, the rosin modified phenolic resin of 3%, the water soluble acrylic acid mill base of 10% successively, by the rotating speed of 600-800r/min, dispersed 2-4 hour;

(5) filter after finally adding the silicone antifoam agent of 0.5%, a kind of ink adding rosin modified phenolic resin.