1. Principle Compare the sample and the sample to the method of scraping in parallel, and check whether the color of the sample meets the standard.
2. Tools and Materials (1) Ink-adjusting knife Cone-shaped body with wooden handle, 200mm long, 20mm at the widest point, 8mm at the narrowest point.
(2) Wiper blade made of stainless steel, 92mm × 59mm × 0.5mm, blade width of 9mm bending outward at 25 °.
(3) Glass plate 200mm x 200mm x 5mm.
(4) Scratch paper The sun print paper (in line with ZB Y32 002), specifications 110mm × 65mm, the top down 60-65mm at 5mm wide black solid cross.
(5) Cellulose paper 65mm x 30mm.
3, test conditions (1) the test should be carried out at the temperature (25 ± 1) °C, relative humidity 65% ​​± 5% conditions.
(2) The inspection of face color and shade should be performed under a standard illumination body with an incident angle of 45°±5°.
(3) Inspecting the undertones should be applied to the fluoroscopy.
4. Inspection Steps (1) Take a sample of about 5 g of the standard sample and the sample with a spatula, place it on a glass plate, and mix it thoroughly.
(2) Use a dipstick to sample approximately 0.5g and apply it to the upper left side of the scratch paper, and then apply about 0.5g of the sample to the upper right of the scratch paper. The two should not be connected adjacently.
(3) Place the doctor blade over the coated ink sample so that the blade body section is 90° from the scratch paper. Apply force to the scratch paper from the top down to a thin layer, to 15mm below the black cross, reduce the force. Make the inside of the blade approximately 25° so that the ink is coated on the paper with a thicker layer of ink. The final scraping shape should be similar to Figure 13-1.
(4) The thin layer of ink on the scratch paper is called the face color; the lower ink layer of the scratch paper is called ink; the thin layer of the ink on the scratch paper is called the background color.
(5) The ink color is checked and the cellophane is covered on the thick ink layer.
5. Test results (1) The lithographic ink and letterpress inks mainly examined whether the face color and background color of the sample were similar to those of the standard sample.
(2) Mesh version Ink and paper gravure inks mainly check whether the color of the sample is similar to the standard sample.
(3) The test result should be based on the color and background observed within 5 minutes after the scratching. The ink color is for reference.
2. Tools and Materials (1) Ink-adjusting knife Cone-shaped body with wooden handle, 200mm long, 20mm at the widest point, 8mm at the narrowest point.
(2) Wiper blade made of stainless steel, 92mm × 59mm × 0.5mm, blade width of 9mm bending outward at 25 °.
(3) Glass plate 200mm x 200mm x 5mm.
(4) Scratch paper The sun print paper (in line with ZB Y32 002), specifications 110mm × 65mm, the top down 60-65mm at 5mm wide black solid cross.
(5) Cellulose paper 65mm x 30mm.
3, test conditions (1) the test should be carried out at the temperature (25 ± 1) °C, relative humidity 65% ​​± 5% conditions.
(2) The inspection of face color and shade should be performed under a standard illumination body with an incident angle of 45°±5°.
(3) Inspecting the undertones should be applied to the fluoroscopy.
4. Inspection Steps (1) Take a sample of about 5 g of the standard sample and the sample with a spatula, place it on a glass plate, and mix it thoroughly.
(2) Use a dipstick to sample approximately 0.5g and apply it to the upper left side of the scratch paper, and then apply about 0.5g of the sample to the upper right of the scratch paper. The two should not be connected adjacently.
(3) Place the doctor blade over the coated ink sample so that the blade body section is 90° from the scratch paper. Apply force to the scratch paper from the top down to a thin layer, to 15mm below the black cross, reduce the force. Make the inside of the blade approximately 25° so that the ink is coated on the paper with a thicker layer of ink. The final scraping shape should be similar to Figure 13-1.
(4) The thin layer of ink on the scratch paper is called the face color; the lower ink layer of the scratch paper is called ink; the thin layer of the ink on the scratch paper is called the background color.
(5) The ink color is checked and the cellophane is covered on the thick ink layer.
5. Test results (1) The lithographic ink and letterpress inks mainly examined whether the face color and background color of the sample were similar to those of the standard sample.
(2) Mesh version Ink and paper gravure inks mainly check whether the color of the sample is similar to the standard sample.
(3) The test result should be based on the color and background observed within 5 minutes after the scratching. The ink color is for reference.
Paper Divider,Divider For Papers,Paper Binder Dividers,Plastic Paper Dividers
MIFIA INDUSTRIAL CO., LTD., , https://www.stationery-manufacturer.com