Plaster initial tack tester operation process
The plaster initial tack tester is an important instrument for detecting the initial tackiness of the plaster ; the plaster initial tack tester is suitable for the initial tack test of various adhesive articles, such as pressure sensitive adhesive tape, medical tape, medical patch. Adhesive labels, protective films, medical plasters, wallpapers, etc.; plaster initial tack tester meets a number of national and international standards, GB/T4852 "pressure sensitive tape initial tack test method - rolling ball method".
Plaster initial tack tester test principle: The test adopts the bevel ball method to test the adhesion of the adhesive tape, label and other products to the steel ball when the steel ball and the adhesive surface of the test sample are briefly contacted by a small pressure. The sample is initially tacky. A steel ball is rolled over the adhesive surface of the adhesive tape which is placed flat on the inclined plate, and the initial viscosity of the zui large steel ball which can be adhered according to the adhesive surface of the predetermined length is evaluated.
Plaster initial tack tester operation process:
1 Place the test instrument on the test bench flat with a standard angle of 30°, even if the runway is at an angle of 30° to the horizontal.
2 According to the regulations, the adhesive surface of the polyester film is attached to the glass panel to form a roller-supporting section, and no air bubbles or wrinkles can be generated when pasting.
3 Put a test piece with a size of 80mmX100mm, with the adhesive back up, and fix it from the bottom end of the glass of the millimeter paper of the glass panel. When it is fixed, it cannot be warped or bulged.
4 Â The steel balls of different types that are stored in the anti-rust solution are taken out with tweezers, rubbed with a degreasing dust-free cloth and dried with anhydrous water, and then repeatedly scrubbed and dried, placed at the starting point of the runway, and placed in the same test piece.
The roll-up section is free to roll down, and the ball of the large model of Zui is picked out from the various balls that have stopped in the measurement section (the ball does not move for more than 5 seconds), and is ready for formal testing.
5 In the formal test, take three samples and use a zui large steel ball to perform a ball test. If a sample cannot stick to the ball, you can use a steel ball smaller than the one. Perform a test on the three specimens. When performing the second test on the same specimen, adjust the starting position of the rolling of the steel ball to ensure that the rolling path of the ball is not in the same position, avoiding errors in the test values. If you still can't stick, you need to re-test according to step 7.4. If it can stick, it can be used as the initial viscometer for more than 5 seconds.
6 If the piece to be tested is thick, the ball may roll down to the test piece and there may be a bounce phenomenon, which will affect the test result. In this case, we will place the test piece directly below the runway starting point and divide it on the test record sheet.
Test Results
The test results are expressed as the median (ball number) of the steel ball number of the three sample ball test results at the time of the formal test.
Plaster initial tack tester Other names: initial tack tester, initial tack tester, initial tack tester, initial tack tester, initial tackifier, initial tack tester, tape initial tack tester, self-adhesive Adhesive tester, Yamin tape initial tack tester, plaster initial tack tester, sticker initial tack tester, wallpaper initial tack tester.
More information!
Jinan Jingji Testing Instrument Co., Ltd.
Label: initial tack tester , plaster initial tack tester
Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.bodybuildingoil.com