On the broad stage of daily life and industrial production, adhesive tape, like a low-key but versatile "supporting role", is ubiquitous and crucial. The transparent tape wrapped layer by layer in the express package ensures the safety of the item during long-distance transportation; In home decoration, masking tape helps create neat and beautiful paint boundaries; In industrial manufacturing, various high-performance tapes are responsible for key tasks such as fixation, sealing, and insulation. It can be said that tape has been integrated into every corner of life and production, becomingmainPart of it.

Behind the seemingly simple function of adhesive tape, there is a key factor that determines its quality - initial adhesion and holding adhesion. Simply put, it refers to the ability of tape to resist displacement and maintain adhesion after being pasted. It is like the "invisible power" of tape, silently affecting the effectiveness of tape in various scenarios. Imagine that during the transportation of a package, if the adhesive tape is not strong enough, it may cause the cardboard box to crack and the items to scatter; In construction, if the adhesive tape used to fix tiles or seal gaps has poor adhesion, the tiles may loosen over time, greatly reducing the sealing effect and affecting the overall quality of the project. So, the importance of adhesive strength for tape quality is self-evident. It is one of the core indicators to measure whether the tape can perform its job, directly related to the reliability and durability of the tape in practical applications.
In order to ensure that the adhesive tape can stably exert its adhesive performance in various scenarios, a series of strict standards have been established in the industry to standardize the adhesion testing. Among them, GB/T 4851 "Test Method for Adhesive Tape Holding Adhesion" is an important national standard for adhesive tape holding adhesion testing in China. This standard provides detailed regulations for various aspects of testing, including testing equipment, sample preparation, testing environment, and testing steps.

Recommended testing instruments: CZY-01 initial viscosity tester+CZY-03 holding viscosity tester

Test Process

1. Sample preparation: Cut the adhesive tape sample according to the standard to ensure a clean and smooth surface.

2. Sample sticking: Stick the tape onto the test board, compact it evenly, and ensure the quality of the sticking.

3. Set test parameters: According to the GB/T 4851 standard, set the test time (such as 10 seconds, 30 seconds, 1 minute, etc.), temperature, and humidity conditions.

4. Perform testing: Start the adhesive tester, simulate actual bonding conditions, and measure the adhesive amount or force of the tape within a preset time.

5. Data recording: Record the adhesion effect in each test and draw the adhesion retention curve.

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