CN1990785B - Composition of 2.5RP9/2 pigment and practicality color block prepared by the same - Google Patents

Abstract

The invention discloses a composition of 2.5RP 9/2 dyestuff and process for preparing physical color lump therefrom, wherein the composition comprises (by weight portions) CSC-A base-material 995-1005 parts, PV23 with a dyestuff content of 30% 0.08 part, PR101 with a dyestuff content of 65% 0.18-0.20 part, PR122 with a dyestuff content of 30% 0.21-0.23 part. The principal ingredients of the CSC-Abase-material being acrylic acid copolymer a content of 30-40%. ISO 591 R2 type is selected as the main white dyestuff with a content of 18-22%, the content of TiO2 >=95%, oil absorption <20g/100g, tinting power = 1800, the base-material has a contrast ratio of 0.90-0.96, 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, 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

A kind of composition of 2.5RP9/2 pigment and with the physical color lump of this preparation of compositions

[technical field]

The present invention relates to composition, particularly be the composition of pigment, and with the physical color lump of this preparation of compositions.

[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 HV/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, 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 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 2.5RP 9/2 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 2.5RP 9/2 pigment consists of by weight:

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

PV23, pigment content are 30%, 0.08 part;

PR101, pigment content are 65%, 0.18～0.20 part;

PR122, pigment content are 30%, 0.21～0.23 part.

Above-mentioned CSC-A 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 0.1～0.2 μ m, 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 18～22%.The contrast ratio of this base-material is 0.90～0.96, and stormer viscosity is 90～100KU, when incident angle is 85 °, and 5 °～10 ° of glossiness.

A kind of physical color lump of 2.5RP 9/2 color, press above-mentioned raw materials and proportioning, when incident angle is 85 °, 4 °～6 ° of its glossiness, and aberration Δ E≤0.50 between the standard value, the Chromatic color that is significantly less than 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 2.5RP 9/2 color comprises the steps:

1. raw material blending: the proportioning by above-mentioned 2.5RP 9/2 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 250 μ m.

3. dry: as to 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 PR122 (pigment content is 30%), PR101 (pigment content is 65%) and PV23 (pigment content is 30%).Wherein, pigment indices P R122 (pigment content is 30%) 2,9-dimethyl quinacridone is red, has tangible gold-tinted fuchsin, is mainly used in to adjust bright-coloured fuchsin and red-purple; Bright-colored, have stronger tinting strength, be have good heat-resisting, resistance to migration can high-grade pigment; Selected pigment indices P R101 (pigment content is 65%) iron oxide red, be one of the most frequently used mineral dye, iron oxide red commonly used has yellow phase and blue difference mutually, has stronger tinting strength, slightly blue phase in the garnet, the composite weathering resistance of bright-colored that makes of normal and organic mill base improves; Itself has extremely strong opacifying power; PV23 (pigment content is 30%) dioxazine violet is present the most frequently used heterocyclic violet pigment, be the blue light purple, bright-colored pure, outstanding tinctorial strength and luminance brightness and excellent heat-resisting, anti-oozing property and good light fastness are arranged, stronger opacifying power is arranged, even usage quantity can keep excellent weathering resistance seldom equally, be mainly used in the painted of automobile, motorcycle, bike one class flawless finish coating.

Adopting contrast ratio is 0.90～0.96, and stormer viscosity is 90～100KU, and the CSC-A base-material that glossiness (85 °) is 5 °～10 ° is realized the underlying carrier of color as us, and the CSC-A base-material is provided by the Hiachuan Industry Co., Ltd., Shenzhen.

We are called CSC3890002 with the physical color lump that generates, and its standard L* value, standard A * value, standard B* value are respectively 91.62,5.55 ,-1.76, the observed value of this physical color lump and aberration Δ E≤0.50 between the standard value.

Embodiment 1:

Take by weighing 0.08 gram PV23 by weight, 0.22 gram PR122,0.19 gram PR101, CSC-A 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 250 μ m, 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 0.08 gram PV23 by weight, 0.21 gram PR122,0.18 gram PR101, CSC-A base-material 1000 grams.Making processes is with embodiment 1.

Embodiment 3: take by weighing 0.08 gram PV23 by weight, 0.23 gram PR122,0.19 gram PR101, CSC-A base-material 1005 grams.Making processes is with embodiment 1.

Embodiment 4: take by weighing 0.08 gram PV23 by weight, 0.22 gram PR122,0.20 gram PR101, CSC-A base-material 995 grams.Making processes is with embodiment 1.

Physical color lump detected result tabulation with embodiment 1 to 4:

Table 1

Remarks: in CIE1976 LAB 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≤0.50 between average value measured and the standard value, the Chromatic color that is significantly less than GB/T 15608-1995 Chinese colour system national Specification are the requirement (GB/T 15608-1995) 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 (2)

1. the composition of 2.5RP 9/2 pigment consists of by weight:

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

PV23, pigment content are 30%, 0.08 part;

PR101, pigment content are 65%, 0.18～0.20 part;

PR122, pigment content are 30%, 0.21～0.23 part;

Above-mentioned CSC-A 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 0.1～0.2 μ m, 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 18～22%; The contrast ratio of this base-material is 0.90～0.96, and stormer viscosity is 90～100KU, when incident angle is 85 °, and 5 °～10 ° of glossiness.

2. the physical color lump of 5RP 9/2 color is characterized in that: by the raw material and the proportioning preparation of claim 1; When incident angle is 85 °, 4 °～6 ° of the glossiness of this physical color lump, and aberration Δ E≤0.50 between the standard value; Prepare this method of practicality color block, comprise 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 250 μ m;

3. dry: as to 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.