CN101684296A - 10G 7.5/8 pigment composition and technical method for preparing color characterization substances by using same - Google Patents

Abstract

The invention discloses a 10G 7.5/8 pigment composition, which comprises the following components in part by weight: 995 to 1,005 parts of CSC-B base material, 16.4 to 16.6 parts of PG7 containing 20percent of pigment and 3.6 to 3.76 parts of PY138 containing 27 percent of pigment. The main component of the CSC-B base material is ethylene methacrylic acid (EMAA) copolymer of which the content is30 to 40 percent and the average molecular weight range is between 150,000 and 200,000. TiO2 is used as a main white pigment with the content between 8 and 12 percent. The base material has the contrast ratio of between 0.78 and 0.82, the stormer viscosity of between 90 and 100 KU and the glossiness of between 5 and 10 when the incident angle is 85 degrees. The composition has high weather resistance and stability and good proportioning repeatability, and raw materials and processes used meet the environmental requirements and standards of low VOC and zero VOC; and the physical color block hassmall color difference with a standard value in a theoretical model of 'Chinese color system', high accuracy of color realization, fine process and high practical value.

Description

The composition of 10G 7.5/8 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.Stipulate among the Chinese colour system GB/T 15608-1995 that 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 physical color lump.Wherein, the Difference Control foot is weighed 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 physical color lump and research and development achievement in the Chinese colour system 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 physical color lump in accordance with regulations, and physical color lump is widely applied to the national life every aspect, radiation with have influence on each field relevant with color.For example, coloured manufacturing, electronic imaging, colored record, multi-media storage and transmission, liquid-crystal display, the practical sample of having contained the national standard under the method for expressing of color, relevant industries comprise: modern architecture and finishing material, clothes, textile materials, dissemination of news medium and printing industry, industries such as multimedia display color.

At present, domesticly also be in the stage of accurately to control to the technical elements that reproduces physical color lump, 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 10G 7.5/8 pigment reaches the physical color lump of realizing with this composition, the fast light sex change and the favorable reproducibility of this physical color lump coating, and glossiness is moderate, and environmental protection.

A kind of composition of 10G 7.5/8 pigment consists of by weight:

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

PG7, pigment content are 20%, 16.4～16.6 parts;

PY138, pigment content are 27%, 3.6～3.76 parts.

Above-mentioned CSC-B base-material main component is an acrylic copolymer, and content is 30～40%, 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.Select TiO for use ₂Content 〉=95%, oil number＜20g/100g, the reducing power Reynolds is several now 1800, and ISO 591R2 type is as main white pigment, and content is 8～12%.The contrast ratio of this base-material is 0.78～0.82, and stormer viscosity is 90～100KU, and incident angle is 85 o'clock, glossiness 5～10.

A kind of physical color lump of 10G 7.5/8 color, press above-mentioned raw materials and proportioning, incident angle is 85 o'clock, its glossiness 4～6, and aberration Δ E≤3.0 between the standard value, the Chromatic color that satisfies GB/T 15608-1995 " Chinese colour system " national Specification are the requirement of sample aberration latitude Δ E≤3.

The preparation method of the physical color lump of above-mentioned 10G 7.5/8 color comprises the steps:

1) raw material blending: the proportioning by above-mentioned 10G 7.5/8 color takes by weighing raw material, mixes.

2) coating: in envrionment conditions is relative humidity 50% ± 5%, in 23 ± 2 ℃ of the room temperatures, adopts mechanical coating method, and composition evenly entirely is coated on the White Board, 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 physical color lump.

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 very little that this physical color lump and the standard value in " Chinese colour system " theoretical model are compared aberration, and the order of accuarcy that color realizes is very high, and manufacture craft is concise, has extremely strong practical value.

[embodiment]

Pigment preferred for this invention comprises that international pigment index codes is PG7 (pigment content is 20%), PY138 (pigment content is 27%).Wherein, PG7 (pigment content is 20%) is a phthalocyanine green, because phthalocyanine pigment has excellent sun-proof and resistance toheat, is insoluble to any solvent, and has extremely bright-coloured form and aspect, belongs to best performance in the current senior pigment, a class that cost is minimum; PY138 (pigment content is 27%) quinoline yellow is brightly painted organic yellow ultramarine, the lightness height, and primary colors and all slightly green yellow and green Huang mutually of lemon of mainly adjusting mutually of reduced tint, weathering resistance is better, and solvent resistance is good, and excellent fast light and heat-resistant stability is arranged.

Adopting contrast ratio is 0.78～0.82, and stormer viscosity is 90～100KU, and the CSC-B base-material of glossiness (85) 5～10 is realized the underlying carrier of color as us, and the CSC-B base-material is provided by the Hiachuan Industry Co., Ltd., Shenzhen.

We are called CSC2175008 with the physical color lump that generates, and its standard L* value, standard A * value, standard B* value are respectively 77.70 ,-42.00,9.69, the observed value of this physical color lump and aberration Δ E≤3.0 between the standard value.

Embodiment 1:

Take by weighing 16.5 gram PG7 by weight, 3.69 gram PY138, CSC-B base-material 1000 grams.With above-mentioned raw materials mixing mixing, then with the composition behind the mixing, in envrionment conditions is relative humidity 50% ± 5%, in 23 ± 2 ℃ of the room temperatures, adopts mechanical coating method, evenly entirely be coated on the White Board, the coating wet-film thickness is 250m, places 50 ± 2 ℃ of dry 3～4h of accurate baking oven to constant weight then, takes out, be cooled to room temperature, obtain physical color lump.

Embodiment 2:

Take by weighing 16.4 gram PG7 by weight, 3.76 gram PY138, CSC-B base-material 1000 grams.Making processes is with embodiment 1.

Embodiment 3:

Take by weighing 16.5 gram PG7 by weight, 3.6 gram PY138, CSC-B base-material 1005 grams.Making processes is with embodiment 1.

Embodiment 4:

Take by weighing 16.6 gram PG7 by weight, 3.69 gram PY138, CSC-B base-material 995 grams.Making processes is with embodiment 1.

Physical color lump 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	Measure aberration Δ E	Glossiness (85)
						Embodiment 1	??79.70	??-41.50	??10.39	??2.18	??5
Embodiment 2	??77.80	??-39.40	??10.09	??2.63	??5
						Embodiment 3	??80.40	??-41.90	??9.69	??2.70	??5
Embodiment 4	??80.60	??-41.90	??10.39	??2.98	??5

Remarks: in the CIE1976LAB uniform colour space, L represents brightness value; Red/green value that A represents; B represents Huang/indigo plant value; Δ E represents total color difference, is used for the degree of closeness of judgement sample and standard, Δ E=[(L-L*) ²+ (A-A*) ²+ (B-B*) ²] ^1/2Glossiness 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 15608-1995 Chinese colour system national Specification are the requirement 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 physical color lump 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 color in kind.

Claims (4)

1, a kind of composition of 10G 7.5/8 pigment consists of by weight:

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

PG7, pigment content are 20%, 16.4～16.6 parts;

PY138, pigment content are 27%, 3.6～3.76 parts;

Above-mentioned CSC-B base-material main component is an acrylic copolymer, and content is 30～40%, 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; Select TiO for use ₂Content 〉=95%, oil number＜20g/100g, the reducing power Reynolds is several now 1800, and ISO 591 R2 types are as main white pigment, and content is 8～12%; The contrast ratio of this base-material is 0.78～0.82, and stormer viscosity is 90～100KU, and incident angle is 85 o'clock, glossiness 5～10.

2, a kind of physical color lump of 10G 7.5/8 color is characterized in that: by the raw material and the proportioning preparation of claim 1.

3, the physical color lump of 10G 7.5/8 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 method for practicality color block of preparation claim 2 or 3 described 10G 7.5/8 colors comprises the steps:

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

2) coating: in envrionment conditions is relative humidity 50% ± 5%, in 23 ± 2 ℃ of the room temperatures, adopts mechanical coating method, and composition evenly entirely is coated on the White Board, 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 physical color lump.