CN101407684A - Composition expressing 10RP 5.25/3 pigment and technical method for preparing color characterization objects by using the same - Google Patents

Abstract

The invention discloses a composition for expressing a 10RP 5.25/3 pigment and a technical method for preparing a color characterizer by using the composition. The composition consits of 995 to 1005 parts by weight of CSC-C base material; 1.95 to 2.05 parts by weight of PR254 with the pigment content of 30 percent; 0.56 part by weight of PBK7 with the pigment content of 9 percent; and 27.7 to 29.0 parts by weight of PW6 with the pigment content of 65 percent. The main ingredient of the CSC-C base material is acrylic acid copolymer, the content is 35 to 45 percent, the contrast ratio of the base material is 0.20 to 0.40, the Stormer viscosity is 90 to 100KU, and the gloss is 5 to 10 when the incident angle is 85 degrees. The color characterizer has good weatherability, stability and reproducibility of mixture ratio, and the raw materials and the process are in line with the requirements and the standards on low VOC and zero-VOC environmental protection; and compared with the standard value in a national standard theory model of the Chinese color system, the color characterizer has small color difference and high accuracy of color realization, thereby being capable of being widely applied in a plurality of fields which are related to the color.

Description

Express the composition of 10RP 5.25/3 pigment and with the technological method of this preparation of compositions characterization substance

[technical field]

The present invention relates to composition, particularly be the composition of pigment, and with the technological method of this preparation of compositions characterization substance.

[background technology]

A kind of color comprises form and aspect, lightness and chroma, as long as determined form and aspect, lightness and chroma, just can determine unique a kind of color.Regulation among the Chinese colour system GB/T 15608, in the Chinese colour system theoretical model, any color can be demarcated with the tone on the color solid, lightness and chroma, and gives certain label.Scaling method is to write out tone H earlier, writes lightness V then, writes chroma C behind oblique line, represent with H V/C, and be example with color 10BG 5.5/6,10BG represents tone, 5.5 expression lightness, 6 expression chromas.

Theoretical value from theoretical model can relate to multinomial important steps such as aberration Δ E, raw material, prescription and technology to the production process of characterization substance.Wherein, Difference Control is to weigh the unalterable quota of a national colours reproducing technology ability, and the degree of approach that aberration is more little, the color theory value is reduced into the color matter sample is high more, and technical difficulty is big more, the scientific research strength that indicates this state simultaneously is strong more, and state of the art is high more.Therefore the research and development technology of characterization substance and research and development achievement in the Chinese colour system national standard theoretical model, embodied the sci-tech innovation ability of China, all had extremely profound significance in the status in color field, the world for development that promotes whole country color science technical field and raising country in the color field.

Coating pigment obtains characterization substance in accordance with regulations, and characterization substance can be widely used in many fields relevant with color.

At present, domesticly also be in the stage of accurately to control to the technical elements that reproducing color therewith characterizes thing, and this is only the core of color theory using value in the theoretical value from theoretical model.

[summary of the invention]

The composition that the purpose of this invention is to provide a kind of 10RP 5.25/3 pigment reaches the technological method of realizing characterization substance with this composition, the fast light sex change and the favorable reproducibility of this characterization substance coating, and glossiness is moderate, and environmental protection.

A kind of composition of 10RP 5.25/3 pigment consists of by weight:

995～1005 parts of CSC-C base-materials;

PR254, pigment content are 30%, 1.95～2.05 parts;

PBK7, pigment content are 9%, 0.56 part;

PW6, pigment content are 65%, 27.7～29.0 parts.

Above-mentioned CSC-C base-material main component is an acrylic copolymer, and content is 35～45%, and its average molecular weight range is 15～200,000, median size is 0.1～0.2m, and minimum film-forming temperature is 10～22 ℃, and second-order transition temperature is 25～35 ℃, anionic, pH value are 8.5～10.0; The contrast ratio of this base-material is 0.20～0.40, and stormer viscosity is 90～100KU, and incident angle is 85 o'clock, glossiness 5～10.

A kind of characterization substance of 10RP 5.25/3 color, press above-mentioned raw materials and proportioning, incident angle is 85 o'clock, its glossiness is 4～6, and aberration Δ E≤3.0 between the standard value, the Chromatic color that satisfies GB/T 15608 Chinese colour system national Specifications are the requirement of sample aberration latitude Δ E≤3.

The technological method of the characterization substance preparation of above-mentioned 10RP 5.25/3 color comprises the steps:

1) raw material blending: the proportioning by above-mentioned 10RP 5.25/3 color takes by weighing raw material, mixes.

2) coating: at ambient relative humidity 50% ± 5%, under 23 ± 2 ℃ of conditions of room temperature, adopt mechanical coating method, composition evenly entirely is coated on the base material, base material is metallic substance or non-metallic material, and the coating wet-film thickness is 250m.

3) drying: place 50 ± 2 ℃ of dry 3～4h of accurate baking oven to constant weight composition coating, take out, be cooled to room temperature, obtain characterization substance.

Advantage of the present invention: said composition weathering resistance and stability are high, and good proportion repeatability, raw materials used and technological process meet low VOC and zero VOC environmental protection requirement and standard; It is little that this characterization substance and the standard value in the Chinese colour system national standard theoretical model are compared color distortion, and the order of accuarcy height that color realizes can be widely used in many fields relevant with color.

[embodiment]

Pigment preferred for this invention comprises that international pigment index codes is PR254 (pigment content is 30%), PBK7 (pigment content is 9%) and PW6 (pigment content is 65%).Wherein, pigment indices P R254 (pigment content is 30%) is the DPP Pigment red, is that the most stable present exterior wall is organic red, has higher saturation ratio, and the slightly blue phase of reduced tint is mainly used in and adjusts the redness bright-coloured, that lightness is higher; Excellent property, light fastness can reach eight grades, strong coloring force, and weathering resistance, chemical resistance are good, are widely used in the high-grade application, especially automobile finish, baking finish, also the painted of multiple plastics that are used for more; PBK7 (pigment content is 9%) is a kind of high-carbon black pigment, particle size range 10～15nm, be used for trace adjustment and water down and reduce the saturation ratio and the lightness of color, play the colour killing effect, not causing simultaneously the bigger deviation of generations on the form and aspect, is that a kind of security is higher and improve the very tangible pigment of effect for the fine setting of color; PW6 (pigment content is 65%) rutile TiO 2, refractive index reaches 2.71, and every pigment performance obviously is better than other white pigment.Mainly playing the colour killing effect in the color compound process, can adjust the depth and the saturation ratio of color during toning, also is the important pigment that improves the color-forming compositions opacifying power in addition.

Adopting contrast ratio is 0.20～0.40, and stormer viscosity is 90～100KU, and the CSC-C base-material of glossiness (85) 5～10 is realized the underlying carrier of color as us, and the CSC-C base-material is provided by the Hiachuan Industry Co., Ltd., Shenzhen.

We are called CSC4152503 with the characterization substance that generates, and its standard L* value, standard A * value, standard B* value are respectively 55.00,13.20,2.28, the observed value of this characterization substance and aberration Δ E≤3.0 between the standard value.

Embodiment 1:

Take by weighing 1.95 gram PR254 by weight, 0.56 gram PBK7,27.7 gram PW6, CSC-B base-material 1000 grams.With above-mentioned mixing of materials mixing, then with the composition of gained, at ambient relative humidity 50% ± 5%, under 23 ± 2 ℃ of conditions of room temperature, adopt mechanical coating method, evenly entirely be coated on the base material, base material is metallic substance or non-metallic material, and the coating wet-film thickness is 250m, place 50 ± 2 ℃ of dry 3～4h of accurate baking oven to constant weight then, take out, be cooled to room temperature, obtain characterization substance.

Embodiment 2:

Take by weighing 2.01 gram PR254 by weight, 0.56 gram PBK7,28.36 gram PW6, CSC-C base-material 1000 grams.Making processes is with embodiment 1.

Embodiment 3:

Take by weighing 2.05 gram PR254 by weight, 0.56 gram PBK7,29.0 gram PW6, CSC-C base-material 1005 grams.Making processes is with embodiment 1.

Embodiment 4:

Take by weighing 1.95 gram PR254 by weight, 0.56 gram PBK7,28.36 gram PW6, CSC-C base-material 995 grams.Making processes is with embodiment 1.

Characterization substance detected result tabulation with embodiment 1 to 4:

Table 1

Circulation ratio: 0.01	Measure the L value	Measure the A value	Measure the B value	ΔE	Glossiness (85)
						Embodiment 1	55.13	13.30	2.28	0.16	5
Embodiment 2	55.08	13.09	2.14	0.20	5
						Embodiment 3	55.10	13.40	2.38	0.24	5
Embodiment 4	55.20	13.30	2.38	0.24	5

Remarks: in CIE1976 LAB uniform colour space, Δ E=[(L-L*) ²+ (A-A*) ²+ (B-B*) ²] ^1/2, be used for the degree of closeness of judgement sample and standard.Wherein Δ E represents total color difference, and L represents the standard brightness value, and L* represents to measure brightness value, A represent standard red/green value, red/green value that A* represents to measure, B represents standard Huang/indigo plant value, B* represents to measure Huang/indigo plant value.Glossiness refers to the gloss intensity with the body surface of data statement.

Detect through DATACOLOR 600 spectrophotometers, in the embodiment of table 1, aberration Δ E≤3.0 between average value measured and the standard value, the Chromatic color that satisfies GB/T 15608 Chinese colour system national Specifications are the requirement (GB/T 15608) of sample aberration latitude Δ E≤3.

Composition does not have the disadvantages of filming such as loose colour, layering and flocculation in put procedure, volatile organic compounds in technology making processes (VOC) burst size＜200g/L, free formaldehyde≤0.1g/kg, dissoluble lead≤90mg/kg, soluble cadmium≤75mg/kg, soluble chromium≤60mg/kg, soluble mercury≤60mg/kg, LD50/ per os/mouse:＞7000 milligrams/kilogram.The characterization substance color reproducibility is good.

Other some test performances are as shown in the table:

Table 2

	Composition weathering resistance (GB/T1865-1997)	Composition heat storage stability (GB 6753.3-86)
			Embodiment 1	700h is no abnormal	ΔE≤0.30
Embodiment 2	700h is no abnormal	ΔE≤0.30
			Embodiment 3	700h is no abnormal	ΔE≤0.30
Embodiment 4	700h is no abnormal	ΔE≤0.30

Can clearly be seen that by last table 2, the composition coating weathering resistance that selected embodiment obtains detects the prescribed value of data fit national standard, and detect by the heat storage stability experiment, colour-change is lower than 0.30, has guaranteed to realize the accuracy and the permanent stability of characterization substance.

Claims (4)

1, a kind of composition of 10RP 5.25/3 pigment consists of by weight:

995～1005 parts of CSC-C base-materials;

PR254, pigment content are 30%, 1.95～2.05 parts;

PBK7, pigment content are 9%, 0.56 part;

PW6, pigment content are 65%, 27.7～29.0 parts;

Above-mentioned CSC-C base-material main component is an acrylic copolymer, and content is 35～45%, and its average molecular weight range is 15～200,000, median size is 0.1～0.2m, and minimum film-forming temperature is 10～22 ℃, and second-order transition temperature is 25～35 ℃, anionic, pH value are 8.5～10.0; The contrast ratio of this base-material is 0.20～0.40, and stormer viscosity is 90～100KU, and incident angle is 85 o'clock, glossiness 5～10.

2, a kind of characterization substance of 10RP 5.25/3 color is characterized in that: by the raw material and the proportioning preparation of claim 1.

3, the characterization substance of 10RP 5.25/3 color according to claim 2 is characterized in that: incident angle is 85 o'clock, its glossiness 4～6, and aberration Δ E≤3.0 between the standard value.

4, the technological method of the characterization substance of preparation claim 2 or 3 described 10RP 5.25/3 colors comprises the steps:

1) raw material blending: take by weighing raw material by proportioning, mix;

2) coating: at ambient relative humidity 50% ± 5%, under 23 ± 2 ℃ of conditions of room temperature, adopt mechanical coating method, composition evenly entirely is coated on the base material, base material is metallic substance or non-metallic material, and the coating wet-film thickness is 250m;

3) drying: place 50 ± 2 ℃ of dry 3～4h of accurate baking oven to constant weight composition coating, take out, be cooled to room temperature, obtain characterization substance.