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Determination of Wear Resistance of Ink Film by Abrasion Meter

Abstract: 本文讨论了使用磨耗仪(如Taber磨耗仪)测定油墨膜层耐磨性能的方法。油墨的耐磨性能与膜层的附着力、硬度、内聚力以及底材材质和表面处理等因素相关。使用磨耗仪时,通过电机驱动砂轮对试样进行摩擦,记录摩擦圈数。操作步骤包括固定试样和砂轮、调整加压砝码和转速。摩擦过程后,通过称重前后的油墨样板失重来评估耐磨性,失重值越大,表示油墨的耐磨性越差。

The wear resistance test of ink refers to the resistance of ink film layer to mechanical action such as friction. This is mainly related to the comprehensive manifestation of the adhesion, hardness and cohesion of the ink film layer. Of course, the substrate material (such as film, paper, fabric, metal, etc.), the surface treatment of the film layer and other factors are also closely related. The friction resistance of the ink can be measured by the rubber grinding wheel method (that is, what we often call the taber abrasion Tester).

Determination of the wear resistance of the ink film layer with an abrasion Tester with Figure 1

This kind of abrasIon Meter drives the grinding wheel through the motor, and the sample is fully rubbed through the continuous rotation of the grinding wheel, and then records the number of circles through the counter. The operation method is relatively simple. Fix the sample on the working plate of the abrasIon Meter, increase or decrease the pressure weight according to the demand, fix the rubber grinding wheel, put down the dust suction part, and adjust the speed. The sample of the ink can be ground 50 times first, and G1 can be weighed by a percent balance, and then G2 can be weighed on the balance again after re-grinding to the specified speed, which is expressed by the weight loss of the ink film layer. The formula is as follows:


Friction weight loss G=G1-G2


The greater the weight loss, the worse the abrasion resistance of the ink.

This kind of wear meter is widely used, so I won't introduce it here.


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