Water-based pigment paste and preparation method thereof

A kind of water-based paint type mill base and preparation method thereof

Technical field

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The invention belongs to fine chemical technology field, be specifically related to a kind of water-based paint type mill base and preparation method thereof.

Background technology

Water-base pigment mill base will replace solvent system tinting material in future, be widely used in various ep-type materials, for example aqueous latex paint, aqueous woodware paint, water-based PU leather colorant, water-based packaging ink, water-based pigment printing slurry etc.Along with the innovation in industry of aqueous high molecular tackiness agent, to various monobasic, binary, ternary, the modification of quaternary high molecular polymer, particularly silicone modified styrene-acrylate emulsion, organic fluorine modifying cinepazid emulsion has changed the weakness with aqueous-based adhesive in the past, thereby has been born a lot of environmentally friendly new coatings.The feature of water-based paint is cheap, and viscosity of latex is low, is convenient to produce and construction, and rate of polymerization is fast, and molecular weight of product is high simultaneously, and polymerization can be carried out at lower temperature.

Conventionally, dispersible pigment color paste is divided into solvent system, water-based system and water and oil applicable type system.

Select mill base to comprise with pigment: monoazo class pigment, condensation azo pigment, quinacridine ketone pigment, dioxazines pigment, isoindolinone and isoindoline class pigment, anthraquinone heterocyclic pigment, benzimidazoles pigment, DPP class pigment &#; perylene pigments, phthalein cyanogen class pigment, the pigment of thousands of the different C.I classifications such as mineral dye.According to chemistry and physical features such as the weathering resistance of different pigment, photostabilization, resistance to acids and bases, water-wash resistance, resistances to migration, by it for fields such as coating, plastics, ink, paper, weaving, makeup.

In the time preparing water-base pigment mill base, because the surface polarity of pigment dyestuff is low, so be not easy by water-wet.Compare pigment dyestuff, the wetting ability of mineral dye is stronger than the wetting ability of pigment dyestuff.

Conventional pigment dyestuff HLB value

C.I. call number HLB value C.I. call number HLB value C.I. call number HLB value P.Y.13 8.00 P.R.112 12.6 P.G.7 10-12 P.Y.14 8.40 P.R.122 12.6 P.G.36 12-14 P.Y.17 10.00 P.R.146 11.8 Carbon black 14-15 P.Y.83 10.50 P.R.170 11.56 Titanium white 17-20 P.Y.139 18.90 P.V.19 13.6 ? ? P.O.5 7.5 P.V.23 9.4 ? ? P.O.34 8.2 P.B.15:3 14-16 ? ?

We weigh lipophilicity or the wetting ability of pigment conventionally with HLB value (water oil equilibrium value).HLB is less than 10, lipophilicity; HLB is greater than 10, wetting ability.The larger wetting ability of HLB value is stronger, otherwise lipophilicity is stronger.Nonionogenic tenside has additivity, can utilize two kinds of following formula calculating or two or more tensio-active agents to mix later HLB value:

HLB&#;(HLB A*W A)+(HLB B*W B)/(W A+W B)

Wherein, W a, W brepresent respectively the weight percentage of surfactant A and B, HLB aand HLB bit is respectively the HLB value of A and B.

HLB value is suitable as the type emulsifying agent of W/O at the tensio-active agent of 3-8, HLB value is applicable to the emulsifying agent of 0/W at the tensio-active agent of 8-16, as the HLB value of wetting agent at 7-9.

Tensio-active agent is divided into anion surfactant, cats product, nonionogenic tenside.

Summary of the invention

The present invention is intended to take into full account on the basis of the basic recipe such as textile printing, coating and production technique, invents a kind of water-based paint type mill base that is applicable to textile printing, nonwoven stamp and coating and preparation method thereof.

Water-based paint type mill base of the present invention, the component that it comprises following mass percent:

pigment,

composite dispersing agent,

moisture adsorbent,

composite auxiliary solvent,

deionized water,

antibacterial mildew inhibitor,

defoamer,

pH adjusting agent.

Described pigment is selected from C.I. pigment yellow 13,14,17,42,83,139,155, C.I. pigment orange 5,34, C.I. Pigment red 101,112,122,146,170,184,210, C.I. pigment violet 3,19,23, C.I. pigment Blue 15: 1,15:3, C.I. pigment Green 7,36, one in C.I. Pigment black 7, C.I. Pigment white 6.

Described composite dispersing agent is that non-ionic dispersing agent forms by the allotment of HLB addition; Wherein, non-ionic dispersing agent be selected from that glycerin fatty acid ester, lipid acid sorb are smooth, polyoxyethylene carboxylate, polysorbate, long-chain fat polyoxyethylenated alcohol, alkylphenol polyoxyethylene, naphthols Soxylat A 25-7, aliphatic amine polyoxyethylene ether, castor oil polyoxyethylene ether, fatty acyl alkanolamine Soxylat A 25-7.

Described moisture adsorbent is urea.

Described composite auxiliary solvent is that ethylene glycol, glycol ether, Triethylene glycol, Virahol, 1,3-PD, 2-amino-2-methyl-1-propanol, AMPD, dipropylene glycol, molecular-weight average are

polyoxyethylene glycol, glycerol, ethylene glycol monomethyl ether, phosphoric acid ester, oleic acid, linolic acid, triethanolamine oleate, trihydroxy ethylamine stearate, palmitinic acid trolamine compound in one or both and two or more compositions.

Described antibacterial mildew inhibitor is that phenylpropyl alcohol triazole, tolyl-triazole, pentachlorophenol, sodium pentachlorophenol, 2-(4-thiazolyl) benzoglyoxaline, two thiocarbamate, two hexamethylenes are for the one in inferior ammonium nitrate, methyl-P-carboxyl benzoic ether, calcium sorbate, Sodium Benzoate.

Described defoamer is polyethers, C7-C9 high-carbon alcohols, poly-alkylsiloxane class organosilicon, organic silicon modified by polyether class, one in polysiloxane-based.

Described pH adjusting agent is mineral alkali, i.e. one in ammoniacal liquor, sodium hydroxide.

The present invention prepares the method for above-mentioned water-based paint type mill base, comprise the steps: first composite dispersing agent, PH conditioning agent, antibacterial mildew inhibitor, defoamer, deionized water to be added in container, be mixed to get homogeneous solution by mulser, add again composite auxiliary solvent and moisture adsorbent, then lentamente pigment is added in mixing solutions and infiltrate and mixing; And then adopting circulation outflow formula sand-blast to carry out essence dispersion, pigment is subject to high-intensity impact force and shear action and disperses, and finally obtains water-based paint type mill base.

In above-mentioned reaction, the quality percentage composition of each component in water-based paint type mill base respectively:

pigment,

composite dispersing agent,

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composite auxiliary solvent,

deionized water,

antibacterial mildew inhibitor,

defoamer,

pH adjusting agent.

In the present invention, add glycerol as composite auxiliary solvent, there is the characteristics such as wetting agent, moisture adsorbent, crease-proofing textiles containing contracting treatment agent; In the present invention, also introduce urea as moisture adsorbent, and in pigment printing, later stage with textile auxiliary agent, linking agent, natural paste in the formaldehyde of low molar content at ammoniacal liquor as under catalyst reaction, stamp is warmed in process and is separated out urea-formaldehyde resin, increases fabric vividness, photostabilization and washability fastness.Mill base preparation process of the present invention is simple, is easy to suitability for industrialized production.

Embodiment

Below in conjunction with specific experiment example, the present invention is described in further detail.

The detection method of product of the present invention is as follows:

Pigment printing paste detecting instrument: X-Rite SP60 color measurement instrument, Brookfield viscometer, American-European gram Easizer30 particle diameter detector.

Printing technology: pigment printing paste 2%, tackiness agent 20%, the former paste 77% of stamp, linking agent 1%.

All-cotton fabric silk screen table printing: 100 DEG C (5 minutes), dry, cure 160 DEG C (3 minutes).Example 1:

Select pigment dyestuff PR112 red (mountain flower pigment Chemical Co., Ltd. is reflected in Hangzhou), 100 grams; 12 grams of castor oil polyoxyethylene ether EL35 dispersion agents; 0.2 gram of pH adjusting agent ammoniacal liquor; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 100 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 2h, and directly discharging is sample mill base 1-A sample.

Example 2:

Select pigment dyestuff PR112 red, 100 grams; 12 grams of castor oil polyoxyethylene ether EL35 dispersion agents; 0.2 gram of pH adjusting agent ammoniacal liquor; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 5 grams of wetting Agent for Printing Inks (composite auxiliary solvent) glycerol; 3 grams, urea; 92 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, wetting Agent for Printing Inks, urea, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 2h, and directly discharging is sample mill base 1-B.

Example 3:

Select pigment dyestuff PY14 Huang, 100 grams; 10 grams of castor oil polyoxyethylene ether EL40 dispersion agents; 0.1 gram of pH adjusting agent ammoniacal liquor; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 100 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 1.5h, and directly discharging is sample mill base 2-A.

Example 4:

Select pigment dyestuff PY14 Huang, 100 grams; 7 grams of castor oil polyoxyethylene ether EL10 dispersion agents; 6 grams of EL20 dispersion agents; 0.1 gram of pH adjusting agent ammoniacal liquor; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 5 grams of wetting Agent for Printing Inks (composite auxiliary solvent) glycerol; 3 grams, urea; 92 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, wetting Agent for Printing Inks, urea, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 1.5h, and directly discharging is sample mill base 2-B.

Example 5:

Select pigment dyestuff PY14 Huang, 100 grams; 8 grams of castor oil polyoxyethylene ether EL10 dispersion agents; 4 grams of castor oil polyoxyethylene ether EL40 dispersion agents; 0.05 gram of pH adjusting agent ammoniacal liquor; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 5 grams of wetting Agent for Printing Inks (composite auxiliary solvent) glycerol; 3 grams, urea; 92 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, wetting Agent for Printing Inks, urea, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 1.5h, and directly discharging is sample mill base 2-C.

Example 6:

Select pigment dyestuff PO34 orange (Shanghai Ya Lian pigment Chemical Co., Ltd.), 100 grams; 15 grams of castor oil polyoxyethylene ether EL40 dispersion agents; 0.05 gram of pH adjusting agent ammoniacal liquor; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 100 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 1.5h, and directly discharging is sample mill base 3-A.

Example 7:

Select pigment dyestuff PO34 orange, 100 grams; 9 grams of castor oil polyoxyethylene ether EL10 dispersion agents; 3 grams of castor oil polyoxyethylene ether EL40 dispersion agents; 0.05 gram of pH adjusting agent ammoniacal liquor; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 100 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 1.5h, and directly discharging is sample mill base 3-B.

Example 8:

Select pigment dyestuff PO34 orange, 100 grams; 9 grams of castor oil polyoxyethylene ether EL10 dispersion agents; 3 grams of castor oil polyoxyethylene ether EL40 dispersion agents; 0.05 gram, pH adjusting agent sodium hydroxide; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 5 grams of wetting Agent for Printing Inks (composite auxiliary solvent) glycerol; 3 grams, urea; 92 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, wetting Agent for Printing Inks, urea, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 1.5h, and directly discharging is sample mill base 3-C.

Example 9:

Select pigment dyestuff PV23 purple (Wuxi new delustering pigment company limited), 100 grams; 15 grams of castor oil polyoxyethylene ether EL40 dispersion agents; 0.05 gram of pH adjusting agent ammoniacal liquor; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 100 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 1.5h, and directly discharging is sample mill base 4-A.

Example 10:

Select pigment dyestuff PV23 purple, 100 grams; 5 grams of castor oil polyoxyethylene ether EL10 dispersion agents; 8 grams of castor oil polyoxyethylene ether EL40 dispersion agents; 0.05 gram of pH adjusting agent ammoniacal liquor; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 100 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 1.5h, and directly discharging is sample mill base 4-B.

Example 11:

Select pigment dyestuff PV23 purple, 100 grams; 5 grams of castor oil polyoxyethylene ether EL10 dispersion agents; 8 grams of castor oil polyoxyethylene ether EL40 dispersion agents; 0.05 gram of pH adjusting agent ammoniacal liquor; 3 grams of mould inhibitor 2-(4-thiazolyl) benzoglyoxalines; 0.5 gram of the poly-alkylsiloxane class organosilicon of defoamer; 5 grams of wetting Agent for Printing Inks (composite auxiliary solvent) glycerol; 3 grams, urea; 92 grams of deionized waters.First dispersion agent, PH conditioning agent, mould inhibitor, defoamer, wetting Agent for Printing Inks, urea, deionized water are added in container, be mixed to get homogeneous solution by mulser, then lentamente pigment is added in mixing solutions and infiltrate and mixing; High speed dispersion 10 minutes again, then proceeds to circulation outflow formula horizontal sand mill, and rotating speed r/min continues circulation sand milling essence and disperses after 1.5h, and directly discharging is sample mill base 4-C.

The test result of above embodiment and comparative sample is in table one:

Table one

Sample Tinctorial strength Particle diameter (um) (D90) Stability Heat retaining property Example 11-A 100 1.62 Generally Generally Example 21-B 110 1.5 Good Fine Example 32-A 100 1.73 Generally Generally Example 42-B 109 1.45 Good Generally Example 52-C 122 1.3 Fine Fine Example 63-A 100 2.31 Generally Generally Example 73-B 113 2.02 Good Generally Example 83-C 127 1.93 Fine Fine Example 94-A 100 1.35 Generally Generally Example 104-B 107 1.11 Good Generally Example 114-C 118 0.92 Fine Fine

Can be found out by table one, in the time adding glycerol and urea in preparation process, the tinctorial strength of products obtained therefrom, particle diameter, stability and moisture retention are all relatively good.

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