First, principle
The sample and the standard were diluted with a standard white ink, and the concentration of the diluted ink was compared and expressed as a percentage.
Second, tools and materials
[1] Ink-knives, wooden mallet cones, 200mm long, 20mm widest, 8mm narrowest.
[2] Wiper blade made of stainless steel, 92mm × 59mm × 0.5mm, blade width of 9mm bending outward at 25 °.
ã€3】 Scratch paper base paper (in line with ZB Y32 002), specifications 110mm × 65mm.
[4] standard white ink.
[5] Standard black ink.
Third, the instrument
[1] Analysis of the balance of the maximum load of 200g, a sense of 1mg.
[2] Round glass sheet 2mm, diameter 90-100mm.
Fourth, test conditions
[1] The test should be conducted at a temperature of (25 ± 1) °C and a relative humidity of 65% ± 5%.
ã€2】 Observe the dip and scrape, should be under D65 standard illumination body.
V. Inspection steps
[1] Weigh the standard white ink 2g and the sample ink 0.2g on a round glass plate with an analytical balance. In the same way, standard white ink and standard ink were weighed in the same ratio. The well-known ink is fully regulated with the ink-regulating blade.
[2] Apply a uniform sample of about 0.5g with a spatula and apply it to the upper left of the scraping paper, and then take about 0.5g of the sample to be coated on the upper right of the scraping paper. The two should not be connected adjacently.
[3] Place the doctor blade over the painted ink sample so that the body of the doctor blade is perpendicular to the scratch paper. Then, from the top down, the ink is scraped into a thin layer on the scratching paper, and when it is scraped to 35-45mm, the force is reduced, the angle inside the blade is approximately 25°, and the ink is painted on the paper to form a thick ink layer. . The final scraping shape should be similar to the schematic in GB/T 14624.1.
[4] Observe whether the face color and the ink color of the sample and the target sample are the same. If they are not the same, change the amount of the standard white ink of the sample until the diluted sample is consistent with the standard sample. Calculate the percentage of the color strength of the sample according to the formula.
[5] After scratching, the ink color reflected in the observation within 30 seconds shall prevail.
Sixth, test results
S=B/A×100%
In the formula, S—the percentage of coloring power (100% of the standard sample), %;
A - Dilute the standard amount of white ink, g;
B - dilute the amount of white ink sample, g.
The sample and the standard were diluted with a standard white ink, and the concentration of the diluted ink was compared and expressed as a percentage.
Second, tools and materials
[1] Ink-knives, wooden mallet cones, 200mm long, 20mm widest, 8mm narrowest.
[2] Wiper blade made of stainless steel, 92mm × 59mm × 0.5mm, blade width of 9mm bending outward at 25 °.
ã€3】 Scratch paper base paper (in line with ZB Y32 002), specifications 110mm × 65mm.
[4] standard white ink.
[5] Standard black ink.
Third, the instrument
[1] Analysis of the balance of the maximum load of 200g, a sense of 1mg.
[2] Round glass sheet 2mm, diameter 90-100mm.
Fourth, test conditions
[1] The test should be conducted at a temperature of (25 ± 1) °C and a relative humidity of 65% ± 5%.
ã€2】 Observe the dip and scrape, should be under D65 standard illumination body.
V. Inspection steps
[1] Weigh the standard white ink 2g and the sample ink 0.2g on a round glass plate with an analytical balance. In the same way, standard white ink and standard ink were weighed in the same ratio. The well-known ink is fully regulated with the ink-regulating blade.
[2] Apply a uniform sample of about 0.5g with a spatula and apply it to the upper left of the scraping paper, and then take about 0.5g of the sample to be coated on the upper right of the scraping paper. The two should not be connected adjacently.
[3] Place the doctor blade over the painted ink sample so that the body of the doctor blade is perpendicular to the scratch paper. Then, from the top down, the ink is scraped into a thin layer on the scratching paper, and when it is scraped to 35-45mm, the force is reduced, the angle inside the blade is approximately 25°, and the ink is painted on the paper to form a thick ink layer. . The final scraping shape should be similar to the schematic in GB/T 14624.1.
[4] Observe whether the face color and the ink color of the sample and the target sample are the same. If they are not the same, change the amount of the standard white ink of the sample until the diluted sample is consistent with the standard sample. Calculate the percentage of the color strength of the sample according to the formula.
[5] After scratching, the ink color reflected in the observation within 30 seconds shall prevail.
Sixth, test results
S=B/A×100%
In the formula, S—the percentage of coloring power (100% of the standard sample), %;
A - Dilute the standard amount of white ink, g;
B - dilute the amount of white ink sample, g.
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