CN102746743A

CN102746743A - Ethylene-vinyl acetate copolymer (EVA) pigment color paste

Info

Publication number: CN102746743A
Application number: CN2012102765136A
Authority: CN
Inventors: 王文庭
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-06
Filing date: 2012-08-06
Publication date: 2012-10-24

Abstract

An EVA pigment color paste is composed of a pigment carrier, a dispersing agent, color pigments and fillers. The pigment carrier is composed of dioctyl phthalate, butyl acetate and EVA emulsion; the dispersing agent utilizes triethanolamine, and the color pigments utilize pigment red, pigment yellow, pigment blue, carbon black and titanium dioxide; and the fillers utilize light calcium carbonate. During the preparation, the EVA emulsion is dissolved in dioctyl phthalate and butyl acetate to form a sticky pigment carrier, and one of the color pigments and the light calcium carbonate are blended into the pigment carrier, and the dispersing agent is added, after full stir, the mixture is ground to the technique required fineness through a three-roll grinder, namely, base chromophore of the EVA pigment color paste.

Description

EVA resin dispersible pigment color paste

Technical field

The present invention relates to a kind of EVA dispersible pigment color paste, specifically refer to be used for belong to the painting technical field by the colour developing raw material that the EVA goods add man-hour.

Background technology

The EVA resin has been widely applied to the every aspect of people's life.Yet aspect painted, still continue to use the promptly direct pigment powder that adds of traditional method, its drawback has two: at first dry powder attitude pigment is prone to drift and is sucked contaminate environment and unhealthful by the human respiratory tract when spice; Secondly, common pigments is mostly at 400 orders, and promptly particle diameter is about 38 microns, and the pigment usage quantity of equal effect is 1000 ~ 1200 orders, 10 ~ 13 microns import pigment of particle diameter about 10 times, and the price of import pigment is again 20 ~ 25 times of common pigments.Because the generation visitor color matching service of import pigment has watered down expensive shade.

Summary of the invention

The present invention discloses a kind of EVA resin sole pigment mill base, the accurate nanometer fineness of semi liquid state paste, and the benchmark color base is independent separately, promptly possesses the advantage that the import amount of pigment is few, the generation visitor matches colors, and possesses the cost advantage of common pigments again.

The technical scheme that the present invention adopts is: mill base is by pigment carrier, and dispersion agent, colour developing pigment, stopping composition are formed four big formation components.The employing N-BUTYL ACETATE is a main solvent, and the EVA emulsion is a structural resin, and DOP is a wetting agent, is mixed with pigment carrier in proportion; Dispersion agent adopts trolamine, and colour developing pigment adopts Pigment red, Pigment Yellow 73, Pigment blue, carbon black, white titanium pigment respectively, and stopping composition adopts light calcium carbonate.A kind of, the light calcium carbonate of pigment of will developing the color during making is blended in pigment carrier, adds dispersion agent, after fully stirring, is ground to the technical requirements fineness with three-roll grinder and is benchmark color base of the present invention.

The invention has the beneficial effects as follows: keep the cost advantage of common pigments, overcome that the common pigments consumption is big, powder pollutes, can't possess the performance condition of alternative import pigment for the drawback of visitor's color matching.

Embodiment:

By weight percentage; 38% DOP, 30%EVA emulsion, 32% N-BUTYL ACETATE constitute pigment carrier; At first Witcizer 300, the N-BUTYL ACETATE with formula ratio places in the agitation vat, opens stirrer, under condition of stirring, slowly adds the FVA emulsion; Become viscous liquid when the FVA emulsion thoroughly is dissolved in solvent, be pigment carrier and deposit subsequent use.

Pigment carrier 59%, white titanium pigment 30%, light calcium carbonate 10%, trolamine 1%.At first the pigment carrier with formula ratio places agitation vat; Start stirrer; Under condition of stirring, add light calcium carbonate again behind the adding white titanium pigment, wait the whole moistening backs of solid powder to add trolamines; Restir can be gone up approximately three-roll grinder half a hour and grind, fineness reach 3 ~ 5 μ m the white colorant finished product;

Pigment carrier 64%, carbon black 18%, light calcium carbonate 17%, trolamine 1% is processed into the black color paste finished product with method;

Pigment carrier 59%, pigment orchid 18%, light calcium carbonate 22%, trolamine 1% is processed into blue mill base finished product with method;

The adding Pigment red is red mill base, and adding Pigment Yellow 73 is yellow mill base, and prescription is with together blue.

When last three-roll grinder ground, roll spacing needed descending by all over tightening, and carbon black especially is difficult for moisteningly, grinds with the roll spacing first pass of 1 millimeter and to make it fully moistening, and second time slightly tightly roll spacing is promptly normal basically.All over after grinding, scrape to such an extent that get final product between fineness value 3 ~ 5 μ m through some with the fineness plate.

Claims

1. EVA resin dispersible pigment color paste, it is characterized in that: the employing N-BUTYL ACETATE is a main solvent, and the EVA emulsion is a structural resin, and DOP is a wetting agent, is mixed with pigment carrier in proportion; Dispersion agent adopts trolamine, and colour developing pigment adopts Pigment red, Pigment Yellow 73, Pigment blue, carbon black, white titanium pigment respectively, and stopping composition adopts light calcium carbonate.

2. pigment carrier, it is characterized in that: by weight percentage, 38% DOP and 32% N-BUTYL ACETATE place agitation vat, under stirring state, add the 30%EVA emulsion be dissolved into viscous liquid pigment carrier.

3. an EVA resin dispersible pigment color paste is characterized in that: pigment carrier 59% as claimed in claim 2, white titanium pigment 30%; Light calcium carbonate 10%; Trolamine 1% adds white titanium pigment earlier and adds light calcium carbonate again under condition of stirring, wait the whole moistening backs of solid powder to add trolamine; Restir can be gone up approximately three-roll grinder half a hour and grind, fineness reach 3 ~ 5 μ m the white colorant finished product.

4. an EVA resin dispersible pigment color paste is characterized in that: pigment carrier 64% as claimed in claim 2, carbon black 18%; Light calcium carbonate 17%; Trolamine 1% adds carbon black earlier and adds light calcium carbonate again under condition of stirring, wait the whole moistening backs of solid powder to add trolamine; Restir can be gone up approximately three-roll grinder half a hour and grind, fineness reach 3 ~ 5 μ m the black color paste finished product.

5. an EVA resin dispersible pigment color paste is characterized in that: pigment carrier 59% as claimed in claim 2, pigment blue 18%; Light calcium carbonate 22%; Trolamine 1% adds the pigment orchid earlier and adds light calcium carbonate again under condition of stirring, wait the whole moistening backs of solid powder to add trolamine; Restir can be gone up approximately three-roll grinder half a hour and grind, fineness reach 3 ~ 5 μ m blue look mill base finished product.

6. EVA resin dispersible pigment color paste according to claim 5 is characterized in that: replace pigment blue with Pigment Yellow 73.

7. EVA resin dispersible pigment color paste according to claim 5 is characterized in that: replace pigment blue with Pigment red.