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2.5G 8/6 dye composition and object color lump prepared from the composition

A composition and pigment technology, applied in the direction of pigment-containing coatings, coatings, etc., can solve the problems of inaccurate control, etc., and achieve the effects of strong practical value, good proportion reproducibility, high weather resistance and stability

Inactive Publication Date: 2007-07-11
SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Currently, in China, the technology from the theoretical value in the theoretical model to the reproduction of the actual color block is still in the stage of inaccurate control, and this is the application of color theory core of value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 3.93 grams of PG7, 0.15 grams of PY42, 7.92 grams of PY138, and 1000 grams of CSC-B base material. Mix the above raw materials, and then apply the mixed composition evenly and evenly on the coated paper under the environmental conditions of relative humidity of 50%±5% and room temperature of 23±2°C. The wet film thickness of the coating is 250 μm, and then placed in a precision oven at 50±2°C for 3 to 4 hours to constant weight, taken out, cooled to room temperature, and obtained a physical color block.

Embodiment 2

[0025] Weigh 3.63 grams of PG7, 0.14 grams of PY42, 7.72 grams of PY138, and 1000 grams of CSC-B base material. Manufacturing process is with embodiment 1.

Embodiment 3

[0027] Weigh 4.23 grams of PG7, 0.16 grams of PY42, 8.12 grams of PY138, and 1005 grams of CSC-B base material. Manufacturing process is with embodiment 1.

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PUM

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Abstract

The invention discloses a composition of 2. 5G 8 / 6 dyestuff and process for preparing physical color lump therefrom, wherein the composition comprises (by weight portions) CSC-B base-material 995-1005 parts, Pg7 with a dyestuff content of 20% 3. 63-4. 23 parts, P42 with a dyestuff content of 60% 0.14-0.16 parts, PY138 with a dyestuff content of 27% 7. 72-8. 12 parts. The principal ingredients of the CSC-B base-material being acrylic acid copolymer with a content of 30-40%. ISO 591 R2 type is selected as the main white dyestuff with the content = 8-12%, the content of TiO2 >=95%, oil absorption <20g / 100g, tinting power = 1800, the base-material has a contrast ratio of 0.78-0.82, a Stormer viscosity of 90-100KU, when the incident angle is 85 Deg, the lustrousness is 5-10 Deg. The composition of the invention has high weatherability and stability, and good proportioning repeatability. The raw material and technical process can meet low VOC and zero VOC environmental protection requirement and standard, the obtained physical color lump has very low color-difference compared with the normalized value in theoretical models of the Chinese color systems. The invention can achieve high accuracy of color realization, fine production process and high practical values.

Description

【Technical field】 [0001] The invention relates to a composition, in particular to a pigment composition, and a physical color block prepared by using the composition. 【Background technique】 [0002] A color includes hue, lightness and chroma. As long as the hue, lightness and chroma are determined, a unique color can be determined. The Chinese color system GB / T 15608-1995 stipulates that in the theoretical model of the Chinese color system, any color can be calibrated by the hue, lightness and chroma on the color plane, and given a certain label. The calibration method is to first write the hue H, then write the lightness V, write the chroma C after the slash, expressed as H V / C, take the color 10BG 5.5 / 6 as an example, 10BG means the hue, 5.5 means the lightness, and 6 means the color Spend. [0003] From the theoretical value in the theoretical model to the production process of the actual color block, many important links such as color difference ΔE, raw materials, form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/02D21H19/38
Inventor 周维军何唯平
Owner SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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