(1) Test tool: 1.3M600 transparent tape or transparent tape with adhesion greater than 5.3N/18MM.
Test method: Stick the 3M600 transparent tape on the printed font or pattern of the sample to be tested, and flatten it by hand, then pull the tail of the tape to 90 degrees to the test surface, and quickly remove the tape and repeat 3 times. Experimental judgment: Hot Air Stenter ( https://www.hotairstenter.com/product/hot-air-stenter.html ) should be able to clearly distinguish the surface silk/printed fonts or patterns by naked eyes without peeling.
(2) Friction test: The purpose of the test is to evaluate the adhesion of painting, silk screen and pad printing paint.
Test equipment: eraser
Test method: Fix the test piece with a vertical force of 500G and a stroke of 15MM to rub back and forth. Each one-way stroke is a silk, pad printing font or pattern continuous rubbing 50 times.
Experimental judgment: The bottom line cannot be seen by naked eyes, and the printing font or pattern can be clearly distinguished.
(3) Anti-solvent test: Isopropanol test, take 1MI isopropanol solution and drop it on the sprayed surface or silk/printing surface of the sample for 10 minutes and then wipe the isopropanol solution dry with a white cloth. Anti-olein test: soak a cotton ball or white cloth with a 99% alcohol solution, and then rub it back and forth at the same position of the sample silk/pad printing font or pattern at a pressure of 1KG and a speed of 1 second. Times.
Experimental judgment: the printed fonts or patterns on the surface of the sample should be clearly visible after being wiped, and the color should not lose gloss or fade. (4) Thumb test: the experimental sample is above 5PCS. Experimental procedure: Take the sample and place the thumb on the silk/pad printing position with a force of 3+0.5/-OKGF and test 15 times.
Experimental judgment: silk/pad printing patterns or fonts are indispensable, broken lines, poor ink adhesion, etc. (5) 95% alcohol test: 1 test sample above 5PCS. 2White cotton gauze. 3 95% alcohol. 4 1.5+0.5/-OKGF tooling experiment procedure: tie the bottom of the 1.5KGF tooling with white cotton gauze dipped in 95% alcohol, and then use the white cotton gauze to go back and forth 30 times on the printed font or pattern (About 15SEC). Experimental judgment: the printed fonts or patterns must not have peeling, chipping, broken lines, poor ink adhesion, etc. The color may be light but the fonts or patterns should be clear and not blurred. (6) 810 tape test: 1. The test sample is above 5PCS. 2. 810 tape Experimental procedure: completely paste the 810 tape on the silk/printed font or pattern, and then quickly pull the tape at a 45-degree angle for 3 consecutive times. Experimental judgment: the silk/pad printing fonts or patterns must have gaps or broken lines. (7) 3M600 tape test: 1, the experimental sample 5PCS. 2. 3M600 tape Experimental procedure: Paste the 3M600 tape completely on the silk/pad printing font or pattern position, and then quickly pull up the tape at a 45-degree angle, only one test is required. Experimental judgment: the silk/pad printing fonts or patterns must have gaps or broken lines. (8) 250 tape test: 1. 5PCS of experimental sample. 2. 250 tape experiment procedure: paste 250 tape completely on the silk/pad printing font or pattern position, and then quickly pull up the tape at a 45 degree angle for 3 consecutive times. Experimental judgment: Open Type Rotary Screen Printer ( https://www.hotairstenter.com/product/ ) sample silk/pad printing fonts or patterns must have gaps or broken lines.