CN101805439A

CN101805439A - Polyurethane pure water ink linking material and pure water ink

Info

Publication number: CN101805439A
Application number: CN 200910208778
Authority: CN
Inventors: 张伟公
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-28
Filing date: 2009-10-28
Publication date: 2010-08-18
Anticipated expiration: 2029-10-28
Also published as: CN101805439B

Abstract

The invention relates to a polyurethane pure water ink linking material and pure water ink. The pure water ink system is prepared by dispersing and grinding a pure water ink linking material added with pure water, an organic pigment, a dispersant, aqueous wax powder, a defoamer and a thickener. For producing low-cost pure water ink with high performance, a polyether glycol and a polyester glycol, which are polymer materials, are mixed and dehydrated, the product of the dehydration is added with isocyanate, dimethylolpropionic acid, trimethylolethane and hydroxy-ethyl acrylate to undergo reactions under conditions of vacuum and temperature control for several hours, the reaction solution is neutralized, and the pure water is added into the reaction solution to form compound emulsion, and a further reaction is performed to form the pure water ink linking material. The pure water is used in place of harmful solvents such as methylbenzene and butanone. The pure water ink can be printed on paper boxes, paper and PET and PE plastic thin films. The ink is non-combustible, nontoxic, harmless, environmentally-friendly, safe, energy-saving and low in cost.

Description

Urethane pure water ink linking material and pure water ink thereof

Technical field:

The present invention relates to a kind of printing ink, be specifically related to the production technique and the prescription of a kind of urethane pure water ink linking material and pure water ink thereof.

Background technology:

At present, though China has banned hypertoxic toluene solvent type printing ink, also be to use solvent type ink more than 95%.Inflammable and explosive, contaminate environment, the contaminated food products packing, poisonous and harmful, harm workshop workman's is healthy.Along with the appearance of environment-friendly type aqueous printing ink, " green food and Green Packaging ",, paid close attention to by people day by day because pure water ink is not fired, nontoxic, harmless, environmental protection, safety, health, save energy, with low cost.Pure water ink can be printed on carton, paper aspects such as food product pack, tobacco and wine packing, toy for children packing, can also be printed on the plastics film with PET, PE master.

Summary of the invention:

The pure water ink that the present invention relates to is to make solvent with pure water, replace toluene butanone equal solvent, do not fire, nontoxic, harmless, environmental protection, safety, health, save energy, with low cost, paid close attention to by people day by day, can not only print the packing of food, medicine, tobacco and wine, beverage and paper aspect, can also be printed in the plastic wrapping based on PET, PE, purposes is very extensive, with low cost, be easy to scale operation.

To achieve these goals, urethane pure water ink linking material of the present invention and pure water ink thereof are that polyvalent alcohol and polyester are that polyvalent alcohol, isocyanic ester, dimethylol propionic acid, trimethylolethane, Hydroxyethyl acrylate, quadrol, emulsifying agent, pure water, pure water ink linking material, pigment dyestuff, auxiliary agent are formed by polyethers.

The weight percent of contained each component is:

Polyethers is polyvalent alcohol 5-15%; Linking material 30-60%;

Polyester is polyvalent alcohol 5-15%; Pure water 20-50%;

Isocyanic ester 5-20%; Pigment dyestuff 8-15%;

Quadrol 0.5-1.5% auxiliary agent 2-15%;

Emulsifying agent 1-7%

Dimethylol propionic acid 1-10%;

Trimethylolethane 1-10%;

Hydroxyethyl acrylate 1-20%;

Pure water 22-60%.

The production technique of urethane pure water ink linking material and pure water ink thereof.Step is as follows:

Earlier with add behind polyether glycol and the polyester polyol mixed dehydration isocyanic ester and dimethylol propionic acid, trimethylolethane under condition of negative pressure temperature control 85 degree reactions after 12 hours with quadrol and emulsifying agent neutralization, add pure water again and generate composite emulsion, continue reaction and generated the pure water ink linking material in 1 hour.Add pure water, pigment dyestuff and auxiliary agent in proportion again with linking material and after dispersion grinding, become pure water ink.

The pure water ink rate of drying that the present invention makes is fast, and printing adaptability is better, and transitivity is good, and attachment fastness is good, is particularly suitable for plastic film packagings such as tobacco and wine packing, PET, PE, because use pure water mostly, cost is just very low.

Embodiment:

Below in conjunction with embodiment the present invention is described in further detail.

Table 1 is pure water ink linking material prescription; Table 2 is white pure water ink prescription; Table 3 is yellow pure water ink prescription;

Table 1 pure water ink linking material prescription (weight percent)

Polyether glycol 12%;

Polyester polyol 3.5%;

Isocyanic ester 8.6%;

Dimethylol propionic acid 1.8%;

Trimethylolethane 0.5%;

Hydroxyethyl acrylate 2.2%;

Pure water 68.5%.

Quadrol 1.1%

Emulsifying agent 1.8%

The white pure water ink prescription of table 2 (weight percent)

Pure water ink linking material 45%

Pure water 20%

Titanium dioxide 30%

Water-based wax 0.5%

Defoamer 0.5%

Wetting agent 1.0%

Thickening material 1.0%

Ammoniacal liquor 2.0%

The yellow pure water ink prescription of table 3 (weight percent)

Pure water ink linking material 50%

Pure water 32%

Diarylide yellow 13%

Water-based wax 0.5%

Defoamer 0.5%

Wetting agent 1.0%

Thickening material 1.0%

Ammoniacal liquor 2.0%.

Claims

1. urethane pure water ink linking material and pure water ink thereof, it is characterized in that: with the macromolecule raw material polyethers is that polyvalent alcohol and polyester are to add isocyanic ester, dimethylol propionic acid, trimethylolethane, Hydroxyethyl acrylate behind the polyvalent alcohol mixed dehydration, under condition of negative pressure behind the temperature control stoichiometric number hour with in quadrol and the emulsifying agent and add pure water and generate composite emulsion, continue reaction and generate the pure water ink linking material.Add pure water, pigment dyestuff and auxiliary agent in proportion with linking material and after dispersion grinding, become pure water ink.Replace hazardous solvents such as toluene, butanone with pure water.The weight percent of contained each component is:

Polyethers is polyvalent alcohol 5-15%; Linking material 30-60%;

Polyester is polyvalent alcohol 5-15%; Pure water 20-50%;

Isocyanic ester 5-20%; Pigment dyestuff 8-15%;

Quadrol 0.5-1.5% auxiliary agent 2-15%;

Emulsifying agent 1-7%

Dimethylol propionic acid 1-10%;

Trimethylolethane 0.5-9.5%;

Hydroxyethyl acrylate 1-21%;

Pure water 22-60%.

2. the preparation technology of urethane pure water ink linking material according to claim 1 and pure water ink thereof is characterized in that: make the pure water ink linking material with the polymer starting material, use pure water 22-60%.

3. the preparation technology of urethane pure water ink linking material according to claim 1 and pure water ink thereof, it is characterized in that: use the pure water ink linking material, add pure water, pigment dyestuff and auxiliary agent in proportion again and after dispersion grinding, become pure water ink, use pure water 20-50%.

4. the preparation technology of urethane pure water ink linking material according to claim 1 and pure water ink thereof is characterized in that: replace hazardous solvents such as toluene, butanone with pure water.

5. the preparation technology of urethane pure water ink linking material according to claim 1 and pure water ink thereof is characterized in that: under condition of negative pressure behind the temperature control stoichiometric number hour with quadrol and emulsifying agent neutralization.

6. polyethers according to claim 1 is that polyvalent alcohol and polyester are that polyvalent alcohol can be other polyvalent alcohol, and isocyanic ester can be tolylene diisocyanate, diphenylmethanediisocyanate, pure diphenylmethanediisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, dicyclohexyl methane diisocyanate, naphthalene diisocyanate, PPDI, cyclohexyl diisocyanate, trimethylammonium hexamethylene diisocyanate, cyclohexanedimethyleterephthalate vulcabond.Trimethylolethane can be Tutofusin tris, trishydroxymethylnitromethane, TriMethylolPropane(TMP), tri hydroxy methyl phenol.Hydroxyethyl acrylate can be methyl acrylate, acrylate Isooctyl acrylate monomer, butyl acrylate, ethyl propenoate, Isooctyl acrylate monomer, methyl aceto acetate, methyl acetoacetate, ethylene glycol ether acetate, 2-Butoxyethyl acetate, propylene glycol monomethyl ether acetate, 1-Methoxy-2-propyl acetate, dimethyl isophthalate.Pure water can be a deionized water.Pigment dyestuff can be mineral dye, dyestuff.Auxiliary agent comprises thickening material, wetting agent, defoamer, ammoniacal liquor, water-based wax powder.Quadrol can be thanomin, diethanolamine, triethylamine, trolamine.