Equipment characteristics The test principle of the bevel ball method is used to test the instantaneous adhesion performance of the sample. Test steel balls designed in full accordance with national standards ensure high accuracy of test data Test tilt angle can be adjusted freely according to user needs Initial adhesion tester implementation standard GB 4852, JIS Z0237 The initial tack tester can be used as a preliminary tack tester or a tape adhesive tester. The equipment adopts the inclined ball rolling method to test the initial tack of the sample by 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 slight pressure. It is suitable for initial tack test of pressure sensitive tape, medical patch, self-adhesive label, protective film and other related products. Equipment introduction Equipment Name: Initial Adhesive Tester English name: Primary Adhesive Tester Product Keywords: tape initial adhesion tester, initial tack tester, initial tack tester, initial tackifier, initial tack tester, tape adhesive tester, initial tack tester, pressure sensitive adhesive initial tack tester, Initial adhesion tester, adhesive tape detector Initial adhesion tester classification: bevel ball tester chute ball tester Scope of application: The initial tack tester is suitable for initial tack test of pressure sensitive adhesive tape, medical patch, self-adhesive label, protective film and other related products. Instrument use The initial tack tester is suitable for the initial tack test of pressure sensitive adhesive tapes, self-adhesive labels and other related products. The label initial tack tester performs GB 4852 (pressure sensitive adhesive tape initial tack test method - bevel rolling ball method) standard, adopts the principle of bevel rolling ball method, and characterizes the initial of adhesive products by the largest steel ball number capable of sticking letters. Sticky properties. Test principle Roll a steel ball over the adhesive surface of the adhesive tape that is placed flat on the inclined plate, and evaluate the initial viscosity according to the maximum steel ball size that can be adhered to the adhesive surface of the specified length; or roll a steel ball of a specified size The groove was measured, and the distance at which it was rolled on the adhesive surface of the adhesive tape on the horizontal plate was measured to evaluate the initial tack. The initial viscosity of the sample was tested by the bevel ball method by the adhesion of the adhesive tape to the steel ball when the steel ball and the pressure sensitive tape were briefly contacted by the slight pressure on the adhesive surface of the sample. Method of operation 1. Adjust the leveling bubble to the center circle by adjusting the bolts on the base; 2. Fix the tilting plate at 30° with the angle adjustment knob; 3. Place the sample prepared according to the standard viscous face up on the inclined plate; 4. Apply a polyester film to the specified part and fix the sides and the lower part of the sample with an adhesive tape; 5. The steel ball processed according to the standard is clamped into the ball ejector with the tweezers, and the position of the ball arranging device is adjusted so that the center of the steel ball is located on the starting line of the roller rolling section and is staggered from the track that has been rolled; 6. Gently open the ball ejector and observe the test until it reaches the maximum ball steel ball that can be stuck; 7. Take the above two balls of the largest ball number and the ball with the ball number, and perform a test on the sample to confirm the maximum ball number; 8. Enter the formal test procedure as required. Precautions 1. The test results are indicated by steel ball numbers. 2. In the steel ball in which each of the three specimens is stuck, if all three are the largest spherical steel balls, or two are the largest spherical steel balls, and the other ball number is only smaller than the largest spherical number, then the test The result is expressed as the maximum ball number; if one is the largest ball number and the other two ball balls are only smaller than the maximum ball number, the test result is represented by a steel ball number that is only smaller than the maximum ball number. 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