CN105372181A - Detection method for compatibility of water-based color paste in latex paint - Google Patents
Detection method for compatibility of water-based color paste in latex paint Download PDFInfo
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- CN105372181A CN105372181A CN201510464657.8A CN201510464657A CN105372181A CN 105372181 A CN105372181 A CN 105372181A CN 201510464657 A CN201510464657 A CN 201510464657A CN 105372181 A CN105372181 A CN 105372181A
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Abstract
The invention relates to a detection method for compatibility of latex paint, in particular to a detection method for compatibility of water-based color paste in the latex paint. The detection method includes the steps that the water-based color paste is added into the latex paint and uniformly stirred to prepare standard sample paint, three standard sample paint samples equal in weight are sampled at will and processed, chromatism values are obtained through card making, detection and calculation, and when all the chromatism values meet the requirement and namely are smaller than 0.5, it is judged that the compatibility of the water-based color paste in the latex paint is up to the standard. The detection method can accurately measure the compatibility of the water-based color paste in the latex paint, and the phenomena of flooding and floating of the latex paint are prevented, and use cost is saved. The detection method is easy to operate, short in time and high in accuracy and eradicates missing detection in a prior use detection method.
Description
Technical field
The present invention relates to the detection method of latex paint compatibility, particularly the detection method of the compatibility of aqueous color paste in latex paint.
Background technology
Latex paint in use, often need to add aqueous color paste to mix colours, the compatibility of the aqueous color paste of different manufacturers and the latex paint of different formulations is very important, if compatibility is bad, the color development of colored paint can become unstable, colored paint there will be the phenomenons such as floating in construction, and in storage, the color of colored paint also can change.
Existing detection aqueous color paste method of compatibility in latex paint is: detect after adopting a certain amount of mill base to mix in latex paint, Main Basis GB/T21090-2007 " Color Adjustable Basic Emulsion Coatings ", although the method is fairly simple, but it is not accurate enough, well can not reflect mill base and the latex paint compatibility situation constructing, in storage process, sometimes pass through according to standard testing, but in practical application, still have incompatible situation to occur, make troubles in production application process.
Therefore need one simply, accurately detection method to detect the compatibility of aqueous color paste in latex paint, guarantee the quality of product.
Summary of the invention
The object of this invention is to provide the detection method of the compatibility of a kind of aqueous color paste in latex paint, the method comprehensively can embody the stability of colored paint in production, construction and storage process, and result is accurate.
The present invention seeks to be achieved through the following technical solutions.
The detection method of the compatibility of aqueous color paste in latex paint: its step comprises:
(1), by aqueous color paste add in latex paint and after uniform stirring, be made into standard sample paint, the standard sample paint that then grab sample 3 parts of weight are identical; Preferably, aqueous color paste accounts for the 2-3.5% of latex paint weight.
High for part standard sample paint of 1 wherein 1000 revs/min are stirred 20 minutes, places at 20-28 DEG C, make sample paint, for subsequent use;
Stir after adding wetting agent in part standard sample paint of 1 wherein, make sample paint for subsequent use, the addition of described wetting agent is the 0.1-0.2% of sample paint weight; Wetting agent contributes to color development effect and the stability of coating, standard sample paint just with the addition of a small amount of wetting agent when making, the method can the colour stability of testing standard sample paint by adding wetting agent in standard sample paint again, if wetting agent add after aberration obvious, poor compatibility is described.Wetting agent addition can affect the water tolerance of product when being greater than 0.2%.Preferably, the addition of described wetting agent is 0.2% of sample paint weight.
Part standard sample paint of 1 is wherein stored 14 days under 50 DEG C of conditions, places at 20-28 DEG C, make sample paint for subsequent use;
(2), by 3 increment paints in step (1) and 1 part of standard sample paint respectively blade coating prepare colour atla, coating thickness is 150-160 μm, described colour atla is placed 15-25 minute under 20-28 DEG C of condition, carry out finger at film fixed position according to the finger method of grinding to grind, its middle finger grinds region and is called B region, and other is coated with diaphragm area and is called a-quadrant; Then 23 ± 3 DEG C, the constant temperature of 50 ± 5%, under constant humidity condition dry 24 hours, obtain colour atla 1, colour atla 2 and colour atla 3, standard color card;
Will slowly film forming and color development after film blade coating, carry out finger within 15 minutes when grinding, because the color development of film is not stablized, now the aberration in A district and B district generally all can not be very large, now refer to grind the compatibility being not easy to judge coating and mill base.Carry out finger during 15-25 minute to grind, film now color development is stablized, and film is close to surface drying, and now the aberration in A district and B district accurately can reflect the compatibility of coating and mill base.
(3) detect the hue value of above-mentioned 4 kinds of colour atla a-quadrants, respectively, obtain the hue value A of the a-quadrant of described colour atla 1
1(AL
1, Aa
1, Ab
1), the hue value A of the a-quadrant of described colour atla 2
2(AL
2, Aa
2, Ab
2), the hue value A of the a-quadrant of described colour atla 3
3(AL
3, Aa
3, Ab
3), standard color card is A
0(AL
0, Aa
0, Ab
0)
Detect the hue value in above-mentioned 4 kinds of colour atla B regions respectively, obtain the hue value B in the B region of described colour atla 1
1(BL
1, Ba
1, Bb
1), the hue value B in the B region of described colour atla 2
2(BL
2, Ba
2, Bb
2), the hue value B in the B region of described colour atla 3
3(BL
3, Ba
3, Bb
3), standard color card is B
0(BL
0, Ba
0, Bb
0);
(4), calculate:
The value of chromatism M of standard color card and colour atla 1
1, M
1=((AL
0-AL
1)
2+ (Aa
0-Aa
1)
2+ (Ab
0-Ab
1)
2)
1/2;
The value of chromatism M of standard color card and colour atla 2
2, M
2=((AL
0-AL
2)
2+ (Aa
0-Aa
2)
2+ (Ab
0-Ab
2)
2)
1/2;
The value of chromatism M of standard color card and colour atla 3
3, M
3=((AL
0-AL
3)
2+ (Aa
0-Aa
3)
2+ (Ab
0-Ab
3)
2)
1/2;
The value of chromatism N of colour atla 1
1, N
1=((AL
1-BL
1)
2+ (Aa
1-Ba
1)
2+ (Ab
1-Bb
1)
2)
1/2;
The value of chromatism N of colour atla 2
2, N
2=((AL
2-BL
2)
2+ (Aa
2-Ba
2)
2+ (Ab
2-Bb
2)
2)
1/2;
The value of chromatism N of colour atla 3
3, N
3=((AL
3-BL
3)
2+ (Aa
3-Ba
3)
2+ (Ab
3-Bb
3)
2)
1/2;
As above-mentioned value of chromatism M
1, M
2, M
3, N
1, N
2and N
3all be less than 0.5, judge that the compatibility of water colour paint in latex paint is qualified.
Described wetting agent is nonionic wetting dispersing agent.Preferably, described nonionic wetting dispersing agent is X405 or CF-10.
In described step (1), the addition of described wetting agent is 0.2% of sample paint weight.
Beneficial effect of the present invention:
1, the compatibility of this detection method energy Accurate Determining aqueous color paste in latex paint, the phenomenon generation of prevent latex paint loose colour, growing dim, has saved use cost.
2, described detection method is easy and simple to handle, and the time is short, and accuracy is high, has stopped first to occur by phenomenon undetected in detection method.
Embodiment
Technical characterstic of the present invention is set forth further below in conjunction with specific embodiment.
Raw material: aqueous color paste is EvonikDegussaC-30 carbon black, 873-1801 iron oxide yellow, 873-1001 iron oxide red; Latex paint is crocodile high durable elastic outer wall paint W6020, experiment elastic exterior coating material, the general exterior wall paint J4080 of crocodile specialty.
Equipment: wet film preparing device is Shanghai Modern Environmental Engineering Technology Co., Ltd. 150 microns or 250 microns of wet film preparing devices.
Embodiment 1
By aqueous color paste EvonikDegussaC-30 carbon black with 2% weight ratio join experiment elastic exterior coating material, stir and make standard sample paint, then sample 3 parts, process respectively according to following 3 kinds of methods:
(1) by described for portion sample paint high-speed stirred, 1000 revs/min are stirred 20 minutes, are then placed into room temperature (25 DEG C);
(2) described for portion sample paint is stirred after interpolation 0.2% wetting agent X405;
(3) described for portion sample paint is stored 14 days in 50 DEG C of baking ovens, be then placed into room temperature (25 DEG C);
Sample paint after standard sample paint and above-mentioned 3 kinds of method process is used wet film preparing device respectively on white art paper blade coating prepare colour atla, the thickness of film is 150 microns; When room temperature places 25 minutes, carry out finger according to the finger method of grinding at the film of described colour atla to grind (surface part with finger grinding film), its middle finger grinds region and is called B region, other is coated with diaphragm area and is called a-quadrant, then 23 ± 3 DEG C, dryly under the constant temperature and humidity condition of 50 ± 5% within 24 hours, obtain standard color card, colour atla 1, colour atla 2 and colour atla 3;
Spectrophotometer is adopted to detect the hue value of above-mentioned 4 kinds of colour atla a-quadrants respectively; Obtain the hue value A of the a-quadrant of standard color card
0(AL
0be 45.82, Aa
0for-0.88, Ab
0for-3.84); The hue value A of the a-quadrant of colour atla 1
1(AL
1be 46.08, Aa
1for-0.93, Ab
1for-3.93); The hue value A of the a-quadrant of colour atla 2
2(AL
2be 43.57, Aa
2for-0.75, Ab
2for-3.18); The hue value A of the a-quadrant of colour atla 3
3(AL
3be 45.35, Aa
3for-0.88, Ab
3for-3.75);
Adopt spectrophotometer to detect the hue value in above-mentioned 4 kinds of colour atla B regions respectively, obtain the hue value B in the B region of standard color card
0(BL
0be 43.92, Ba
0for-0.71, Bb
0for-3.3); The hue value B in the B region of colour atla 1
1(BL
1be 44.56, Ba
1for-0.82, Bb
1for-3.53); The hue value B in the B region of colour atla 2
2(BL
2be 43.75, Ba
2for-0.72, Bb
2for-3.34); The hue value B in the B region of colour atla 3
3(BL
3be 44.37, Ba
3for-0.76, Bb
3for-3.63);
Calculate the △ E value of chromatism N that standard color card refers to grind
0, N
0=((AL
0-BL
0)
2+ (Aa
0-Ba
0)
2+ (Ab
0-Bb
0)
2)
1/2be 1.983;
The △ E value of chromatism N that the finger calculating colour atla 1 grinds
1, N
1=((AL
1-BL
1)
2+ (Aa
1-Ba
1)
2+ (Ab
1-Bb
1)
2)
1/2be 1.576;
The △ E value of chromatism N that the finger calculating colour atla 2 grinds
2, N
2=((AL
2-BL
2)
2+ (Aa
2-Ba
2)
2+ (Ab
2-Bb
2)
2)
1/2be 0.243;
The △ E value of chromatism N that the finger calculating colour atla 3 grinds
3, N
3=((AL
3-BL
3)
2+ (Aa
3-Ba
3)
2+ (Ab
3-Bb
3)
2)
1/2be 0.995;
Calculate the value of chromatism M of standard color card and colour atla 1
1, M
1=((AL
0-AL
1)
2+ (Aa
0-Aa
1)
2+ (Ab
0-Ab
1)
2)
1/2be 0.280;
Calculate the value of chromatism M of standard color card and colour atla 2
2, M
2=((AL
0-AL
2)
2+ (Aa
0-Aa
2)
2+ (Ab
0-Ab
2)
2)
1/2be 2.348;
Calculate the value of chromatism M of standard color card and colour atla 3
3, M
3=((AL
0-AL
3)
2+ (Aa
0-Aa
3)
2+ (Ab
0-Ab
3)
2)
1/2be 0.479;
Wherein, N
1, N
3, M
2all be greater than 0.5, so judge that the mill base compatibility of this experiment elastic exterior coating material is defective.
Embodiment 2
By aqueous color paste EvonikDegussaC-30 carbon black with 2% weight ratio join crocodile high durable elastic outer wall paint W6020, stir and make standard sample paint, then sample 3 parts process respectively according to following 3 kinds of methods:
(1) by described for portion sample paint high-speed stirred, 1000 revs/min are stirred 20 minutes, are then placed into room temperature (about 25 DEG C);
(2) stirred after interpolation 0.2% wetting agent by described for portion sample paint, wetting agent is X405;
(3) described for portion sample paint is stored 14 days in 50 DEG C of baking ovens, be then placed into room temperature;
Sample paint after standard sample paint and above-mentioned 3 kinds of method process is used wet film preparing device respectively on white art paper blade coating prepare colour atla, the thickness of film is 150 microns; When room temperature places 25 minutes, carry out finger at the film of described colour atla according to the finger method of grinding to grind (surface part with finger grinding film), its middle finger grinds region and is called B region, and other is coated with diaphragm area and is called a-quadrant; Then 23 ± 3 DEG C, dryly under the constant temperature and humidity condition of 50 ± 5% within 24 hours, obtain standard color card, colour atla 1, colour atla 2 and colour atla 3;
Spectrophotometer is adopted to detect the hue value of above-mentioned 4 kinds of colour atla a-quadrants respectively; Obtain the hue value A of the a-quadrant of standard color card
0(AL
0be 44.24, Aa
0for-0.73, Ab
0for-3.09) the hue value A of the a-quadrant of colour atla 1
1(AL
1be 44.24, Aa
1for-0.77, Ab
1for-3.1), the hue value A of the a-quadrant of colour atla 2
2(AL
2be 44.12, Aa
2for-0.66, Ab
2for-2.74), the hue value A of the a-quadrant of colour atla 3
3(AL
3be 43.75, Aa
3for-0.72, Ab
3for-3.07);
Adopt spectrophotometer to detect the hue value in above-mentioned 4 kinds of colour atla B regions respectively, obtain the hue value B in the B region of standard color card
0(BL
0be 44.05, Ba
0for-0.71, Bb
0for-3.16), the hue value B in the B region of colour atla 1
1(BL
1be 44.36, Ba
1for-0.74, Bb
1for-3.23), the hue value B in the B region of colour atla 2
2(BL
2be 43.7, Ba
2for-0.68, Bb
2for-2.96), the hue value B in the B region of colour atla 3
3(BL
3be 44.18, Ba
3for-0.76, Bb
3for-3.27);
Calculate the △ E value of chromatism N that standard color card refers to grind
0, N
0=((AL
0-BL
0)
2+ (Aa
0-Ba
0)
2+ (Ab
0-Bb
0)
2)
1/2be 0.203;
The △ E value of chromatism N that the finger calculating colour atla 1 grinds
1, N
1=((AL
1-BL
1)
2+ (Aa
1-Ba
1)
2+ (Ab
1-Bb
1)
2)
1/2be 0.179
The △ E value of chromatism N that the finger calculating colour atla 2 grinds
2, N
2=((AL
2-BL
2)
2+ (Aa
2-Ba
2)
2+ (Ab
2-Bb
2)
2)
1/2be 0.475;
The △ E value of chromatism N that the finger calculating colour atla 3 grinds
3, N
3=((AL
3-BL
3)
2+ (Aa
3-Ba
3)
2+ (Ab
3-Bb
3)
2)
1/2be 0.476;
Calculate the value of chromatism M of standard color card and colour atla 1
1, M
1=((AL
0-AL
1)
2+ (Aa
0-Aa
1)
2+ (Ab
0-Ab
1)
2)
1/2be 0.041;
Calculate the value of chromatism M of standard color card and colour atla 2
2, M
2=((AL
0-AL
2)
2+ (Aa
0-Aa
2)
2+ (Ab
0-Ab
2)
2)
1/2be 0.377;
Calculate the value of chromatism M of standard color card and colour atla 3
3, M
3=((AL
0-AL
3)
2+ (Aa
0-Aa
3)
2+ (Ab
0-Ab
3)
2)
1/2be 0.491;
The △ E value of chromatism of above-mentioned all colour atlas is all less than 0.5, described sample paint and mill base be described compatible stablize qualified.This sample paint shows good colour stability in production, use and storage process.
Embodiment 3
By aqueous color paste EvonikDegussaC-30 carbon black with 0.5%, the mass ratio of 873-1801 iron oxide yellow 1.5%, 873-1001 iron oxide red 1.5% joins the general exterior wall paint J4080 of crocodile specialty, stir and make standard sample paint, then sample 3 parts and process respectively according to following 3 kinds of methods:
(1) by described for portion sample paint high-speed stirred, 1000 revs/min are stirred 20 minutes, are then placed into room temperature (about 25 DEG C);
(2) stirred after interpolation 0.2% wetting agent by described for portion sample paint, wetting agent is X405;
(3) described for portion sample paint is stored 14 days in 50 DEG C of baking ovens, be then placed into room temperature;
Sample paint after standard sample paint and above-mentioned 3 kinds of method process is used wet film preparing device respectively on white art paper blade coating prepare colour atla, the thickness of film is 150 microns; When room temperature places 20 minutes, carry out finger according to the finger method of grinding at the film of described colour atla to grind (surface part with finger grinding film), its middle finger grinds region and is called B region, other is coated with diaphragm area and is called a-quadrant, then 23 ± 3 DEG C, dryly under the constant temperature and humidity condition of 50 ± 5% within 24 hours, obtain standard color card, colour atla 1, colour atla 2 and colour atla 3;
Spectrophotometer is adopted to detect the hue value of above-mentioned 4 kinds of colour atla a-quadrants respectively; Obtain the hue value A of the a-quadrant of standard color card
0(AL
0be 45.98, Aa
0be 4.95, Ab
0be 7.11) the hue value A of the a-quadrant of colour atla 1
1(AL
1be 46.18, Aa
1be 4.73, Ab
1be 6.88), the hue value A of the a-quadrant of colour atla 2
2(AL
2be 45.85, Aa
2be 5.13, Ab
2be 7.46), the hue value A of the a-quadrant of colour atla 3
3(AL
3be 45.96, Aa
3be 5.04, Ab
3be 7.14);
Adopt spectrophotometer to detect the hue value in above-mentioned 4 kinds of colour atla B regions respectively, obtain the hue value B in the B region of standard color card
0(BL
0be 45.66, Ba
0be 5.07, Bb
0be 7.45), the hue value B in the B region of colour atla 1
1(BL
1be 45.79, Ba
1be 4.78, Bb
1be 7.06), the hue value B in the B region of colour atla 2
2(BL
2be 45.69, Ba
2be 5.2, Bb
2be 7.64), the hue value B in the B region of colour atla 3
3(BL
3be 45.62, Ba
3for, 5.21, b
3be 7.44);
Calculate the △ E value of chromatism N that standard color card refers to grind
0, N
0=((AL
0-BL
0)
2+ (Aa
0-Ba
0)
2+ (Ab
0-Bb
0)
2)
1/2be 0.482;
The △ E value of chromatism N that the finger calculating colour atla 1 grinds
1, N
1=((AL
1-BL
1)
2+ (Aa
1-Ba
1)
2+ (Ab
1-Bb
1)
2)
1/2be 0.432;
The △ E value of chromatism N that the finger calculating colour atla 2 grinds
2, N
2=((AL
2-BL
2)
2+ (Aa
2-Ba
2)
2+ (Ab
2-Bb
2)
2)
1/2be 0.251;
The △ E value of chromatism N that the finger calculating colour atla 3 grinds
3, N
3=((AL
3-BL
3)
2+ (Aa
3-Ba
3)
2+ (Ab
3-Bb
3)
2)
1/2be 0.484;
Calculate the value of chromatism M of standard color card and colour atla 1
1, M
1=((AL
0-AL
1)
2+ (Aa
0-Aa
1)
2+ (Ab
0-Ab
1)
2)
1/2be 0.376;
Calculate the value of chromatism M of standard color card and colour atla 2
2, M
2=((AL
0-AL
2)
2+ (Aa
0-Aa
2)
2+ (Ab
0-Ab
2)
2)
1/2be 0.414;
Calculate the value of chromatism M of standard color card and colour atla 3
3, M
3=((AL
0-AL
3)
2+ (Aa
0-Aa
3)
2+ (Ab
0-Ab
3)
2)
1/2be 0.097;
The △ E value of chromatism of above-mentioned all colour atlas is all less than 0.5, described sample paint and mill base be described compatible stablize qualified.This sample paint shows good colour stability in production, use and storage process.
Comparative example:
By aqueous color paste EvonikDegussaC-30 carbon black with 2% mass ratio join experiment elastic exterior coating material, then sample 3 parts process respectively according to following 3 kinds of methods:
(1) by described for portion sample paint high-speed stirred, 1000 revs/min are stirred 5 minutes, are then placed into room temperature (about 25 DEG C);
(2) by described for portion sample paint high-speed stirred, 1000 revs/min are stirred 30 minutes, are then placed into room temperature (about 25 DEG C);
(3) by described for portion sample paint high-speed stirred, 1000 revs/min are stirred 5 minutes, are then stored 14 days in 50 DEG C of baking ovens by sample paint, be then placed into room temperature;
Sample paint after above-mentioned 3 kinds of method process is used wet film preparing device respectively on white art paper blade coating prepare colour atla, the thickness of film is 150 microns; When room temperature places 30 seconds, carry out finger according to the finger method of grinding at the film of described colour atla to grind (surface part with finger grinding film), its middle finger grinds region and is called B region, other is coated with diaphragm area and is called a-quadrant, then 23 ± 3 DEG C, dryly under the constant temperature and humidity condition of 50 ± 5% within 24 hours, obtain colour atla 1, colour atla 2 and colour atla 3;
Spectrophotometer is adopted to detect the hue value of above-mentioned 4 kinds of colour atla a-quadrants respectively; Obtain the hue value A of the a-quadrant of colour atla 1
1(AL
1be 45.82, Aa
1for-0.88, Ab
1for-3.84) the hue value A of the a-quadrant of colour atla 2
2(AL
2be 46.08, Aa
2for-0.93, Ab
2for-3.93), the hue value A of the a-quadrant of colour atla 3
3(AL
3be 45.35, Aa
3for-0.88, Ab
3for-3.75);
Adopt spectrophotometer to detect the hue value in above-mentioned 4 kinds of colour atla B regions respectively, obtain the hue value B in the B region of colour atla 1
1(BL
1be 45.92, Ba
1for-0.88, Bb
1for-3.88), the hue value B in the B region of colour atla 2
2(BL
2be 46.24, Ba
2for-0.92, Bb
2for-4.01), the hue value B in the B region of colour atla 3
3(BL
3be 45.77, Ba
3for-0.94, Bb
3for-3.86);
The △ E value of chromatism N that the finger calculating colour atla 1 grinds
1, N
1=((AL
1-BL
1)
2+ (Aa
1-Ba
1)
2+ (Ab
1-Bb
1)
2)
1/2be the △ E value of chromatism N that the finger of 0.108 calculating colour atla 2 grinds
2, N
2=((AL
2-BL
2)
2+ (Aa
2-Ba
2)
2+ (Ab
2-Bb
2)
2)
1/2be 0.179;
The △ E value of chromatism N that the finger calculating colour atla 3 grinds
3, N
3=((AL
3-BL
3)
2+ (Aa
3-Ba
3)
2+ (Ab
3-Bb
3)
2)
1/2be 0.438;
Calculate the △ E value of chromatism M of colour atla 1 and colour atla 2
1, M
1=((AL
1-AL
2)
2+ (Aa
1-Aa
2)
2+ (Ab
1-Ab
2)
2)
1/2be 0.280
Calculate the △ E value of chromatism M of colour atla 1 and colour atla 3
2, M
2=((AL
1-AL
3)
2+ (Aa
1-Aa
3)
2+ (Ab
1-Ab
3)
2)
1/2be 0.479;
Can find out, after the film of described colour atla is tested according to existing method of testing, N
1,n
2n
3data be all be less than 0.5, the mill base compatibility according to common standard coating is qualified.M
1, M
2data are all less than 0.5, illustrate that this paint machine stability and hot storage stability are qualified.But after in fact using, latex paint has the phenomenon of loose colour to occur.And adopting this detection method, i.e. embodiment 1 is underproof, illustrate that existing inspection method has undetected phenomenon to occur, underproof latex paint can be caused like this to flow to market, and the present invention accurately can judge the compatibility of latex paint and aqueous color paste, stop this type of situation and occur.
Claims (4)
1. the detection method of the compatibility of aqueous color paste in latex paint: its step comprises:
(1), by aqueous color paste add in latex paint and after uniform stirring, be made into standard sample paint, the standard sample paint that then grab sample 3 parts of weight are identical;
High for part standard sample paint of 1 wherein 1000 revs/min are stirred 20 minutes, places at 20-28 DEG C, make sample paint, for subsequent use;
Stir after adding wetting agent in part standard sample paint of 1 wherein, make sample paint for subsequent use, the addition of described wetting agent is the 0.1-0.2% of sample paint weight;
Part standard sample paint of 1 is wherein stored 14 days under 50 DEG C of conditions, places at 20-28 DEG C, make sample paint for subsequent use;
(2), by 3 increment paints in step (1) and 1 part of standard sample paint respectively blade coating prepare colour atla, coating thickness is 150-160 μm, described colour atla is placed 15-25 minute under 20-28 DEG C of condition, carry out finger at film fixed position according to the finger method of grinding to grind, its middle finger grinds region and is called B region, and other is coated with diaphragm area and is called a-quadrant; Then 23 ± 3 DEG C, the constant temperature of 50 ± 5%, under constant humidity condition dry 24 hours, obtain colour atla 1, colour atla 2 and colour atla 3, standard color card;
(3) detect the hue value of above-mentioned 4 kinds of colour atla a-quadrants, respectively, obtain the hue value A of the a-quadrant of described colour atla 1
1(AL
1, Aa
1, Ab
1), the hue value A of the a-quadrant of described colour atla 2
2(AL
2, Aa
2, Ab
2), the hue value A of the a-quadrant of described colour atla 3
3(AL
3, Aa
3, Ab
3), standard color card is A
0(AL
0, Aa
0, Ab
0)
Detect the hue value in above-mentioned 4 kinds of colour atla B regions respectively, obtain the hue value B in the B region of described colour atla 1
1(BL
1, Ba
1, Bb
1), the hue value B in the B region of described colour atla 2
2(BL
2, Ba
2, Bb
2), the hue value B in the B region of described colour atla 3
3(BL
3, Ba
3, Bb
3), standard color card is B
0(BL
0, Ba
0, Bb
0);
(4), calculate:
The value of chromatism M of standard color card and colour atla 1
1, M
1=((AL
0-AL
1)
2+ (Aa
0-Aa
1)
2+ (Ab
0-Ab
1)
2)
1/2;
The value of chromatism M of standard color card and colour atla 2
2, M
2=((AL
0-AL
2)
2+ (Aa
0-Aa
2)
2+ (Ab
0-Ab
2)
2)
1/2;
The value of chromatism M of standard color card and colour atla 3
3, M
3=((AL
0-AL
3)
2+ (Aa
0-Aa
3)
2+ (Ab
0-Ab
3)
2)
1/2;
The value of chromatism N of colour atla 1
1, N
1=((AL
1-BL
1)
2+ (Aa
1-Ba
1)
2+ (Ab
1-Bb
1)
2)
1/2;
The value of chromatism N of colour atla 2
2, N
2=((AL
2-BL
2)
2+ (Aa
2-Ba
2)
2+ (Ab
2-Bb
2)
2)
1/2;
The value of chromatism N of colour atla 3
3, N
3=((AL
3-BL
3)
2+ (Aa
3-Ba
3)
2+ (Ab
3-Bb
3)
2)
1/2;
As above-mentioned value of chromatism M
1, M
2, M
3, N
1, N
2and N
3all be less than 0.5, this judges that the compatibility of water colour paint in latex paint is qualified.
2. the detection method of the compatibility of aqueous color paste according to claim 1 in latex paint, is characterized in that: in described step (1), aqueous color paste accounts for the 2-3.5% of latex paint weight.
3. the detection method of the compatibility of aqueous color paste according to claim 1 in latex paint, is characterized in that: in described step (1), described wetting agent nonionic wetting dispersing agent.
4. the detection method of the compatibility of aqueous color paste according to claim 3 in latex paint, is characterized in that: in described step (1), and described nonionic wetting dispersing agent is X405 or CF-10.
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