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basic introduction

Pigments are used to color powdery substances. It is insoluble in water, grease, resin, organic solvents and other media, but it can be evenly dispersed in these media and can make the media color, but also has a certain hiding power.

Dyes are colored substances. But colored substances are not necessarily dyes. As a dye, it must be able to attach a certain color to the fiber. And it is not easy to fall off and change color.

Testing products

Pigment filler:

Titanium dioxide, titanium dioxide, lithopone, chromium oxide, phthalocyanine green, lead chrome yellow, pigment carbon black, mica powder, cadmium red pigment, ceramic pigment, acrylic pigment, gouache pigment, organic pigment, inorganic pigment, chemical pigment, plastic Pigments, iron oxide pigments, wall painting pigments, hand-painted wall pigments, etc.

dye:

Disperse dyes, acid dyes, basic dyes, sulfur dyes, reactive dyes, cationic dyes, neutral dyes, vat dyes, direct dye oxidation dyes, polycondensation dyes, ice dyes, chemical dyes, natural dyes, oily dyes, metal chromium Dyes, solvent dyes, plant dyes, etc.

Test items

Physical properties: appearance, transparency, color, adhesion, PH value, flash point, density, viscosity, fineness, ash, moisture, specific volume, composition analysis, volume solids content, iron oxide test, etc.;

Chemical properties: water resistance, acid and alkali resistance, corrosion resistance, wear resistance, weather resistance;

Construction performance: consumption, oil absorption, paint film polishing, leveling, hiding power, sag, usage, paint film thickness (wet film thickness, dry film thickness), drying time (surface dry, hard dry), etc. ;

Aging test: salt spray aging, high and low temperature cycle, light aging, ozone aging, artificial accelerated aging and other aging items;

Harmful substances: VOC, benzene content, toluene, ethylbenzene, total xylene, free formaldehyde content, total TDI and HDI content, glycol ether, heavy metal content (lead, mercury, chromium, cadmium, etc.).

Testing standards

GB/T 1707-1995 Lide powder

GB/T 1706-2006 Titanium dioxide pigment

GB/T 1710-2008 Comparison of light resistance of similar colored pigments

DB37/736-2007 Energy Consumption Limit of Titanium Dioxide Pigment Products

GB/T 15614-1995 Method for determination of gloss of daily-use ceramic pigments

GB/T 1711-1989 Comparison of thermal stability of pigments in baking paints

GB/T 1713-2008 Determination of pigment density Pycnometer method

GB/T 1717-1986 Determination of pH value of pigment aqueous suspension

FZ/T 52011-2011 Cationic dyeable dyeable modified polyester staple fiber

FZ/T 54037-2011 Cationic dyeable polyester dyeable drawn yarn

GA/T 819-2009 Analysis method of acid dye on protein fiber

GA/T 820-2009 Analysis method of disperse dyes on polyester fiber

FZ/T 51003-2011 Cationic dyeable polyester chips (CDP)

GB/T 10663-2003 Disperse Dyes Determination of Transference

GB/T 12680-2008 Determination of general properties of alcohol soluble dyes

GB/T 1637-2006 Determination of shade and intensity of soluble vat dyes

GB/T 1639-2006 Determination of solubility of soluble vat dyes

GB/T 13451.2-1992 Determination of relative coloring power of coloring pigments and relative scattering power of white pigments

GB/T 1747.2-2008 Paints and varnishes. Determination of pigment content. Part 2: Ashing method

GB/T 18251-2000 Method for determination of pigment or carbon black dispersion in polyolefin pipes, fittings and compounding materials

GB/T 17520-1998 Determination of solubility and stability of reactive dyes in the presence of electrolytes

Our advantage

1. With a professional qualification and experienced expert technical team, we can provide you with professional consultation and services.

2. Have advanced laboratory equipment to ensure the accuracy and reliability of test data.

3. As a third-party testing and certification organization trusted by customers worldwide, we are your certificate of quality.


Online consultation

Online consultation

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Pigment and dye detection

Pigments are used to color powdery substances. It is insoluble in water, grease, resin, organic solvents and other media, but it can be evenly dispersed in these media and can make the media color, but also has a certain hiding power.

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