Selection of water-based color paste and all pigments of water-based color paste
The choice of water-based color paste and all the pigments of water-based color paste
In recent years, with the continuous development of the domestic paint industry, paint raw materials – color paste has also appeared many brands, imported Degussa (formerly the United States Hess), Clariant, steam bar, BASF, CPS (formerly Digunilla), etc., domestic color paste has more than a dozen manufacturers and brands.
Numerous brands provide us with a wide choice of coating enterprises, but also due to the different quality of the color paste to our choice has increased the difficulty. The following is a brief description of several aspects that should be considered when choosing a color paste:
A. Introduction to water-based color paste % O9 F” z6 w3 d
Water-based color paste refers to the organic or inorganic pigments in the wetting, dispersion of surfactants (can also be added to the water-soluble resin), the formation of uniform, stable, with a certain degree of fluidity or thixotropic mobility, strong coloring strength of concentrated pigment paste.
There are two kinds of water-based color paste systems: one is a high pigment content resin-free system; the other is a low pigment content resin (general resin, other single resin) system. The former has high pigment concentration, strong coloring power, good color spreading performance, good compatibility, thixotropic fluidity, generally does not cause floating color and flowering, reasonable choice of additives, and is universal. The latter pigment concentration is relatively low, but has good coloring power, good color spreading, liquidity and viscosity is more stable, the system contains resin, compatibility needs to be tested, otherwise it is easy to lead to paint floating color and flowering.
1, the quality of the color powder in the color paste (mainly depends on its international pigment
Q International pigment number: simply understand the unified pigment code according to the different molecular structure of the color powder, the pigment number determines the light resistance (weather resistance) and chemical resistance (acid and alkaline resistance) of the color paste, and also determines the general color phase of the color paste, because the production process of each color paste company is not the same, the color phase of the color paste may have a slight difference.
Commonly used international pigment code table
Color CI Pigment English Name Chinese Name
Ultramarine Blue 29 Ultramarine Ultramarine
Red 168 Antharuinore Red Anthraquinone Red
Red 112 Monoaz Red Monoaz Red / Amide Condensation Red $ V’ N; t; g’ U% Q
Ortho Red Red 254 DPP Red BO DPP Red
Coral Red Red 255 DPP Red BO Coral DPP Coral Red
Iron Red Red 101 Iron Oxide Red Iron Red 9 ]2 z8 X1 M9 k; s
Light Yellow Yellow 1 Monozoic Yellow 2 w n& v+ h) W; L) n# i% J* ?” B
Yellow 3 Monoaz Yellow 单偶氮黄
Yellow 109 Isoindolinone
The company’s main business is the development of a new product, the “Iron Oxide Yellow”. y0 W4 r6 @’ }
Yellow 74 Monoaz Yellow 单偶氮黄/芳酰胺黄 : T2 o$ } b7 r1 A* f
Dark Yellow 83 Disazo Yellow Bis-azo Yellow
Bright Yellow Yellow 97 Monoazo
Yellow Yellow 138 Quinoline Yellow 喹啉黄 + n% g* l+ a& g1 i+ ^ v# Q
Medium Yellow Yellow 110 Isoindolinone Isoindolinone Yellow ) M9 u$ W2 V6 s! b0 G” a
Golden Yellow Yellow 153 Nickel Complex
Green Gold Yellow 154 Benzimida Zolone Benzopyrazolone Yellow
Blue 15:1 Phthalocyanine Green Phthalocyanine Blue
Blue 15:3 Phthalocyanine Green Phthalocyanine Blue
Blue Blue 15:4 Phthalocyanine Green Phthalocyanine Blue
Green Green 36 Phthalocyanine Green Phthalocyanine Green
Green Green 7 Phthalocyanine Green Phthalocyanine Green ‘ t& [1 H$ r9 m7 D* j m8 s
Violet 23 Oxazine Violet
Violet 19 Quinacridone Violet 喹吖啶酮紫
Orange Red Orange 5 Dinitroaniline Orange % G# P1 R. J3 H5 M; n: [
Orange Orange 43
Orange Orange 73 DPP Orange DPP Orange
Brown 6 Iron Oxide Brown Iron Brown
The international pigment number is an important basis to correspond the product models of different color paste companies one by one. When we check the quality of different brands, we should choose the same pigment number of different manufacturers for comparison. Any color paste company must provide its customers with the international pigment number of its color paste.
A full understanding of the color powder quality is the most important basis for emulsion paint manufacturers to select color paste for different applications (such as interior and exterior wall color paints).
$ j* y9 _2 q3 J) S1 f
2, coloring strength of the color paste (coloring power)’ `) d! u; ~+ U( O4 Z% k5 v
4 r5 y& s4 `- @& B( r
Tinting strength refers to the white latex paint containing 100 grams of titanium dioxide, tuned to 1/25 standard color depth
