1. To have a clear overall understanding the sample required for deployment. Because, sample can be obtained, not be the only, generally can be plastic parts, panton number, photos, leather, metal parts, etc., all colors, all may be you need to know.

2. According to the plastic raw materials, to distinguish between hard and soft plastic toner. The scope of this toner can be narrowed.

3. According to the molding process to select the dye or pigment toner (such as temperature or high temperature resistant)

4. The weathering resistance, chemical stability and without packing or other additives and environmental protection etc. Do you have any special requirements.

5. In what light color, if there is a requirement. Because the sample in natural light. Fluorescent lamp, ultraviolet light, the color will be different.

B. the analysis of hue

Color should follow the principle: first the depth, color photograph again, finally fine-tuning chromatic aberration; Can use the black toner and toner itself shade depth and saturation to allocate.

Hue analysis steps:

1. Observe the transparency of the sample

Generally divided into transparent, translucent, and opaque three (also known as the real color, very solid color transparency is low), there are two kinds of adjustment method of transparency, one is increasing titanium pigment, 2 it is to increase the saturation toner.

Adjustment method of transparency has two kinds, one is the increase titanium pigment, 2 it is to increase the saturation toner.

2. Observe the sample surface

1. If the sample surface of the white, that is, solid color with some white light, the instructions in the sample set contains titanium dioxide, if the white is very heavy, then certainly more titanium dioxide content.

2. If the sample is very bright, that is, high chromaticity, less dosage of titanium pigment, the dosage of the colored toner is much. Content (toner, color bright, color is also deep; on the other hand, the light color, low brightness)

3. If the sample surface bright colour and lustre is deep, and the white surface, it can only increase the amount of titanium dioxide, and increase the amount of toner to allocate.

Note: if the sample is wet transparent, it needs to choose organic pigments or dyes with good transparency. If it is not transparent or translucent, need according to the practical experience to judge estimate the sample, the titanium dioxide content in proportion according to determine whether or not to join the black hue extremely.

C. How does one determine. Toning formula?

1. Determine the content of the titanium dioxide, which is the key technology. Because, a titanium dioxide content change, color will be changed a lot, other pigments dosage is changed;

2. Analysis of the color sample by which a few kinds of color is tonal range, which is the main color, which is color, the proportion is more. (as far as possible choose light color close to the sample of pigment, such as the red color, yellow chooses big red sample, partial will choose brilliant red or bright red fluorescence family color);

3. Observe the sample vividness, considering whether to join the fluorescent pigments or join brightener.

D. try to match

1. According to the previous analysis, choosing the right pigments, architecture formula;

2. According to the category of the raw material choice of soft plastic or hard plastic, is medium temperature or high temperature resistant pigments;

3. Choose according to transparency pigment, determine the content of titanium dioxide and black and grey degree, and finally determine the degree of hue, depth, bright choice toner varieties.

E. the proposed formula

1. Determine the proportion of titanium dioxide

2. Determine the ratio of black toner

3. Determine the ratio of primary colored powder

4. Determine the ratio of vice colored powder (need fluorescent pigments or the proportion of the whitening agent)

F. molding proofing/fine-tuning

Note: general with 600 g resin to allocate, according to the formula ratio, toner and resin, mixed evenly, and then play board in injection molding machine. After playing board, to be completely cooled, the sample with the color of the sample were analyzed, according to the sample of the color of the bright hue, depth, extent and subtract dosage of toner, trial and error until the expected color matching requirement. (such as test with a computer color matching, can according to the L, a, b value of the deviation for data analysis)

G. Adjust the different color problems should be paid attention to

Example: white fastens

1. In general, titanium dioxide particles as thin as possible, the higher tinting strength. The commonly used titanium dioxide dupont R105;

2. General use a light white plastic products, often join a large number of titanium dioxide and a small amount of paint to configuration;

3. Color attune, should choose white with blue titanium dioxide;

4. The higher the titanium dioxide content in the PP/ABS, the hiding power, the better, but more than 8% when covering power no longer rises.

Formula for instance: PP whitening formula of the WHITE paint (for doors and Windows MFI > 35), as the coating color masterbatch) (100) for resin

TIO TIPURE R105 WHI: 14.5%

PWI P AOUV WHI: 3%

BLUE 15: 0.004%