CN105062210A - Preparation method of printing ink by adding colophony modified phenolic resin - Google Patents

Abstract

The invention relates to a preparation method of printing ink by adding colophony modified polyol ester. Because the acid value of colophony is high, and the heat stability of colophony is poor, when the colophony is directly added to the printing ink, the adding effect is poor. Colophony modified polyol ester which is modified is added, so that the defect of poor heat stability of the colophony is overcome. The prepared printing ink not only is high in adhesion strength, but also is good in stability, and has a broad application prospect.

Description

A kind of preparation method adding the ink of rosin modified phenolic resin

Technical field

The present invention relates to a kind of method of modifying of novel ink, particularly a kind of method of modifying of environment-friendlyink ink, belong to ink chemical field.

Background technology

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.But the acid number of rosin self is higher, poor heat stability, if by esterification, the characteristic of rosin can be improved, after the condensation product of formaldehyde and phenols and rosin addition, and be called rosin modified phenolic resin with the synthetic resins of the esterified modification of polyvalent alcohol, the polynuclear plane feature of its uniqueness, has good wettability, adds rosin modified phenolic resin preparing in ink process, prepared ink not only bonding strength is high and stability good, improves the Efficient Adhesive Promotion of Gum Rosin.

Summary of the invention

The invention provides a kind of preparation method adding the ink of rosin modified phenolic resin, the method is carried out as follows:

Successively by the water of 20%, 25% soybean plants oil, the thanomin of 15%, the silicone antifoam agent of 0.5% and 1% soybean lecithin wetting agent be mixed in a dispersion cylinder;

(2) press the rotating speed of 500-600r/min, dispersed, jitter time controls at 1-2 hour;

(3) after dispersion terminates, by the liquid filtering of dispersion;

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

(5) filter after finally adding the silicone antifoam agent of 0.5%, the ink of strong, the stable performance of a kind of attached power.

The present invention has following advantages and characteristic:

(1) strong, the good stability of the attached power of this ink;

(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 500r/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 water soluble acrylic acid mill base of 10% and the rosin modified phenolic resin of 3%, by the rotating speed of 600r/min, dispersed 4 hours, filter after finally adding the silicone antifoam agent of 0.5 part, a kind of attached power is strong, the ink of stable performance.

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 600r/min, dispersed 1 hour, 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 water soluble acrylic acid mill base of 10% and the rosin modified phenolic resin of 3%, by the rotating speed of 600r/min, dispersed 4 hours, filter after finally adding the silicone antifoam agent of 0.5 part, a kind of attached power is strong, the ink of stable performance.

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 500r/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 water soluble acrylic acid mill base of 10% and the rosin modified phenolic resin of 3%, by the rotating speed of 800r/min, dispersed 2 hours, filter after finally adding the silicone antifoam agent of 0.5 part, a kind of attached power is strong, the ink of stable performance.

Claims (1)

1. add a preparation method for the ink of rosin modified phenolic resin, it is characterized in that, the method is carried out as follows:

Successively by the water of 20%, 25% soybean plants oil, the thanomin of 15%, the silicone antifoam agent of 0.5% and 1% soybean lecithin wetting agent be mixed in a dispersion cylinder;

(2) press the rotating speed of 500-600r/min, dispersed, jitter time controls at 1-2 hour;

(3) after dispersion terminates, by the liquid filtering of dispersion;

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

(5) filter after finally adding the silicone antifoam agent of 0.5%, the ink of strong, the stable performance of a kind of attached power.