CN101469188A - Semitransparent teak color calcined sienna superfine aqueous color sizing dispersion and preparation thereof - Google Patents

Abstract

The invention discloses a translucent teak burnt sienna super-fine waterborne color paste dispersoid and a preparation method thereof. The preparation method comprises: evenly mixing deionized water, a dissolving assisting humectant, a preservative, a foam suppressor, a pigment surface conditioning agent and a moistening dispersant by specified weight percentage, slowly adding translucent teak burnt sienna powder pigment for high-speed dispersion, adding an anti-settling and thickening agent under the condition of high-speed stirring and forming an even slurry dispersoid; inputting the slurry dispersoid into a bead mill by a pump, grinding and dispersing the slurry dispersoid for two to five times, and stopping grinding until the fineness of the slurry dispersoid is less than 2 mu m; and adding a thick paste foam killer to the ground slurry dispersoid, adjusting the viscosity to be between 70 and 85KU, and obtaining the translucent teak burnt sienna super-fine waterborne color paste dispersoid. Besides good performance, the translucent teak burnt sienna super-fine waterborne color paste dispersoid meets requirements of individual colors, has the characteristics of physiological inertia, small environment pollution (volatility VOC is less than or equal to 50g/L and no APE), easily controllable quality, convenient production and so on.

Description

Semitransparent teak color calcined sienna superfine aqueous color sizing dispersion and preparation method thereof

Technical field

The present invention relates to the environmental protection semitransparent teak color calcined sienna superfine aqueous color sizing dispersion of a kind of low VOC that is used for the aqueous wooden ware paint toning (refer to steam below b.p.250 ℃ organic compound), no APE (alkylphenol).

The invention still further relates to a kind of preparation method of environmental protection semitransparent teak color calcined sienna superfine aqueous color sizing dispersion.

Background technology

Wood lacquer almost was a solvent based coating in the past, and the VOC that volatilizees in a large number does great damage to environment, and along with continuous advancement in technology, the aqueous woodware paint technology is gradually improved, and a kind of semi-transparent open-birth of the usefulness of mixing colours is received aqueous color paste and arisen at the historic moment.

When woodwork coating, particularly American application, the living powder of receiving is indispensable raw material, normally will forge the living toner of receiving and make wood grain wiping look and Lacquer finish colouring matter (Graintone Wiping Stain And Glaze Tints), is commonly referred to as Ge Lisi (Glaze) at home.The living powder of receiving is gained the name with the place of production, and living (Umber) He Shengna different varietiess such as (Sienna) of receiving is arranged, and is refining from natural mineral and product that get.Receive the semitransparent teak look of aqueous color paste series as semi-transparent open-birth and forge to give birth to and receive aqueous color paste, have good weathering resistance, ultraviolet-absorbing, translucency and high tinting strength; Has good chemical stability, good alkaline-resisting/acid resistance, good temperature tolerance; Forge to give birth to as the semitransparent teak look of mineral dye and receive aqueous color paste, also have ne-leakage, do not have migrating property and characteristics such as insoluble.

Ultraviolet ray is to destroy xyloid arch-criminal, and the semitransparent teak look forge give birth to receive aqueous color paste can the strong absorption ultraviolet radiation, thereby protect wooden; Can make the wooden good coloring effect that plays, color is soft, can make wooden maintenance native texture again.The semitransparent teak look is forged the living aqueous color paste of receiving and is mixed with organic transparent pigment and dyestuff when using, can not only enrich the color of pigment, improve chroma, and problem such as the weathering resistance that exists can improve organic transparent pigment of independent use and dyestuff significantly time the, temperature tolerance difference, thereby the semitransparent teak look is forged the living aqueous color paste of receiving and is had broad application prospects at aspects such as wooden furniture paint tonings.

Because translucent forging gives birth to that to receive powder careful little, specific surface area is big, higher oil number; Produce powerful interface strength between particle, the ratio of particle tightly bonding very difficult dispersion, particularly water-based system pigment is great, and the tendency of sinking in the water-based deadweight is big; And to the environmental requirement height of pigment dispersions, low VOC volatilization, thereby, forge at preparation semitransparent teak look and to give birth to when receiving aqueous color paste, very crucial to the selection of auxiliary agents such as wetting dispersing agent, dispersing apparatus and technology.

Summary of the invention

The objective of the invention is in order to overcome technical problem recited above, a kind of both had good tinting strength and translucency are provided, has good chemical stability again, advantages such as good alkaline-resisting/acid resistance, photostabilization, weathering resistance, ultraviolet attractability, thermotolerance, resistance to migration, and the semitransparent teak color calcined sienna superfine aqueous color sizing dispersion of the environment-friendly type that preparation cost is low, the present invention also provides the preparation method of this semitransparent teak color calcined sienna superfine aqueous color sizing dispersion simultaneously.

In order to solve technical problem recited above, the present invention takes following technical scheme:

The invention provides a kind of semitransparent teak color calcined sienna superfine aqueous color sizing dispersion, comprise following component and weight percent thereof and be:

Deionized water 25～30%;

Hydrotropy wetting Agent for Printing Inks 5～10%;

Sanitas 0.1～0.5%;

Press down bubble defoamer 0.1～0.5%;

Surface of pigments treatment agent 0.5～1.5%;

Wetting dispersing agent 20～30%;

The semitransparent teak look is forged the living powder pigment 35～40% of receiving;

Anti-heavy thickening material 0.1～0.5%;

Thick-slurry type defoamer 0.2～0.5%.

Wherein, described hydrotropy wetting Agent for Printing Inks is meant greater than the b.p.250 ℃ of organic compound molten with water, is generally Macrogol 200, Liquid Macrogol or poly(oxyethylene glycol) 400.

Described surface of pigments treatment agent is silane coupling agent, boric acid ester coupler or titanate coupling agent.

Described wetting dispersing agent is not for containing APE, have high-molecular block copolymer or its aqueous solution of pigment affinity groups, as has pigment affinity groups acrylic block copolymers, has pigment affinity groups Zelan 338 or PDMAEA-PEO segmented copolymer.

Described anti-heavy thickening material is gas phase SiO ₂Or organic bentonite.

Described thick-slurry type defoamer is the polyether modified silicane defoamer.

Other subsidiary material should be chosen the auxiliary agent that does not contain APE, low VOC.

The present invention also provides a kind of preparation method of semitransparent teak color calcined sienna superfine aqueous color sizing dispersion as described above, may further comprise the steps: elder generation is the deionized water of weight percent in accordance with regulations, the hydrotropy wetting Agent for Printing Inks, sanitas, press down the bubble defoamer, behind surface of pigments treatment agent and the wetting dispersing agent mixing, slowly add the semitransparent teak look and forge the living powder pigment of receiving, carry out high speed dispersion with rotating speed 1000-4000rpm, under high-speed stirring, add anti-heavy thickening material, form the uniform sizing material dispersion, with pump the slurry dispersion is input in the ball mill to grind and disperses 2～5 times, after slurry dispersion fineness is less than 2 μ m, stop to grind, add the thick-slurry type defoamer in the slurry dispersion after grinding, regulate range of viscosities at 70～85KU, obtain the semitransparent teak color calcined sienna superfine aqueous color sizing dispersion.

The method for testing performance of aqueous color paste of the present invention:

(1) the package stability testing method of superfine aqueous color sizing: sample places in the constant temperature oven (temperature is controlled at 50 ± 2 ℃) to place 30 days, or normal temperature left standstill 90 days, observes flocculation, throw out whether to occur or divide water etc., as does not have above-mentioned phenomenon and be chosen as outstanding.

(2) the superfine aqueous color sizing median size adopts Thermo, the test of Microtrac S3500 laser particle analyzer.

(3) superfine aqueous color sizing volatile organic matter (VOC) is tested according to GB 18582-2007.

(4) the superfine aqueous color sizing ultraviolet absorption ability adopts the UV-Vis Hitach UV-340 of Hitachi UV, visible light spectrophotometric self-registering instrument to measure.

The high performance semitransparent teak color calcined sienna superfine aqueous color sizing dispersion that the present invention uses as a kind of aqueous wooden ware paint toning, except having anti-good chemical stability, outside the advantages such as good alkaline-resisting/acid resistance, photostabilization, weathering resistance, ultraviolet-absorbing, thermotolerance, resistance to migration, satisfying personalized color demand, also has the physiology inertia, environmental pollution little (volatility VOC≤50g/L, no APE), characteristics such as quality is easy to control, and is convenient for production.

Embodiment

The present invention is further illustrated below by embodiment:

Embodiment 1:

Component content (weight) place of production

Deionized water 28.2%

Macrogol 200 6% DOW

Triazines nitrogen-containing heterocycle compound sanitas 0.2% Cognis

Nonionic presses down bubble defoamer 0.2% Cognis

Have pigment affinity groups acrylic block copolymers 23.5% Degussa

Titanate coupling agent CT-115A 1.5% sharp evolution worker

The semitransparent teak look is forged living powder pigment 40% Rockwood that receives

Gas phase SiO ₂0.2% Ji must the time

Thick-slurry type defoamer Foamex 810 0.2% Tego

Prepare the semitransparent teak color calcined sienna superfine aqueous color sizing dispersion as follows: after at first the first six being planted the component mixing, slowly add the semitransparent teak look and forge the living powder pigment of receiving, high speed dispersion is even after adding; Be to add anti-heavy thickening material gas phase SiO under the high-speed stirring of 1000-4000rpm at rotating speed ₂, form the uniform sizing material dispersion, with pump the slurry dispersion is input to grind in the ball mill and disperses 2～3 times, after slurry dispersion fineness is less than 2 μ m, stop to grind; Add the thick-slurry type defoamer in the slurry dispersion after grinding, (25 ℃, stormer viscosity 70～85KU) makes semitransparent teak color calcined sienna superfine aqueous color sizing dispersion of the present invention to the viscosity that furnishing is suitable.

Embodiment 2:

Component content (weight) place of production

Deionized water 27.7%

Liquid Macrogol 5% DOW

Triazines nitrogen-containing heterocycle compound sanitas 0.2% Cognis

Nonionic presses down bubble defoamer 0.2% Cognis

Have pigment affinity groups Zelan 338 25% BYK

Titanate coupling agent CT-115A 1.5% sharp evolution worker

The semitransparent teak look is forged the living powder pigment 40% refreshing light of receiving

Gas phase SiO ₂0.2% Ji must the time

Thick-slurry type defoamer Foamex 810 0.2% Tego

The preparation method of semitransparent teak color calcined sienna superfine aqueous color sizing dispersion is with reference to embodiment 1.

Embodiment 3:

Component content (weight) place of production

Deionized water 30%

Macrogol 200 6% DOW

Triazines nitrogen-containing heterocycle compound sanitas 0.2% Cognis

Nonionic presses down bubble defoamer 0.3% Cognis

The 22% extra large river industry of PDMAEA-PEO segmented copolymer

Titanate coupling agent CT-115A 1% sharp evolution worker

The semitransparent teak look is forged living powder pigment 40% Rockwood that receives

Gas phase SiO ₂0.2% Ji must the time

Thick-slurry type defoamer Foamex 810 0.3% Tego

The preparation method of semitransparent teak color calcined sienna superfine aqueous color sizing dispersion is with reference to embodiment 1.

The semitransparent teak color calcined sienna superfine aqueous color sizing dispersion that makes by above-mentioned three embodiment shows good performance, sees the following form:

The semitransparent teak look is forged to give birth to and is received the performance table of aqueous color sizing dispersion

Sample	Median size (μ m)	VOC (g/L)	Ultraviolet absorption ability	Package stability (storing 30 days for 50 ± 2 ℃)
					Embodiment 1	<1	22.6	90.6	Excellent
Embodiment 2	<1	31.8	91.5	Excellent
					Embodiment 3	<2	27.2	89.2	Excellent

Although the present invention has done to describe in detail and quoted embodiment as proof, for those of ordinary skill in the art, obviously various schemes, modification and the change that can make according to above-mentioned explanation all should be included within the scope of claim.

Claims (8)

1, a kind of semitransparent teak color calcined sienna superfine aqueous color sizing dispersion is characterized in that: comprising following component and weight percent thereof is:

Deionized water 25～30%;

Hydrotropy wetting Agent for Printing Inks 5～10%;

Sanitas 0.1～0.5%;

Press down bubble defoamer 0.1～0.5%;

Wetting dispersing agent 20～30%;

Surface of pigments treatment agent 0.5～1.5%;

The semitransparent teak look is forged the living powder pigment 35～40% of receiving;

Anti-heavy thickening material 0.1～0.5%;

Thick-slurry type defoamer 0.2～0.5%.

2, aqueous color sizing dispersion as claimed in claim 1 is characterized in that: described hydrotropy wetting Agent for Printing Inks is Macrogol 200, Liquid Macrogol or poly(oxyethylene glycol) 400.

3, aqueous color sizing dispersion as claimed in claim 1 is characterized in that: described wetting dispersing agent is high-molecular block copolymer or its aqueous solution that does not contain APE, has the pigment affinity groups.

4, aqueous color sizing dispersion as claimed in claim 1 is characterized in that: described surface of pigments treatment agent is silane coupling agent, boric acid ester coupler or titanate coupling agent.

5, aqueous color sizing dispersion as claimed in claim 1 is characterized in that: described anti-heavy thickening material is gas phase SiO ₂Or organic bentonite.

6, aqueous color sizing dispersion as claimed in claim 1 is characterized in that: described thick-slurry type defoamer is the polyether modified silicane defoamer.

7, a kind of preparation method as the arbitrary described semitransparent teak color calcined sienna superfine aqueous color sizing dispersion of claim 1-6, it is characterized in that: may further comprise the steps: elder generation is the deionized water of weight percent in accordance with regulations, the hydrotropy wetting Agent for Printing Inks, sanitas, press down the bubble defoamer, behind surface of pigments treatment agent and the wetting dispersing agent mixing, slowly add the semitransparent teak look and forge the living powder pigment of receiving, carry out high speed dispersion with rotating speed 1000-4000rpm, under high-speed stirring, add anti-heavy thickening material, form the uniform sizing material dispersion, with pump the slurry dispersion is input in the ball mill to grind and disperses 2～5 times, after slurry dispersion fineness is less than 2 μ m, stop to grind, add the thick-slurry type defoamer in the slurry dispersion after grinding, regulate range of viscosities at 70～85KU, obtain the semitransparent teak color calcined sienna superfine aqueous color sizing dispersion.

8, preparation method as claimed in claim 7 is characterized in that: the rotating speed of described high-speed stirring is 1000-4000rpm.