Finger pressure method and cotton ball blowing method are commonly used to evaluate the drying time of coating or liquid surface. Ang kanilang mga pagkakaiba ay higit sa lahat ay makikita sa prinsipyo ng pagsubok at mode ng operasyon:

Finger pressure method:

Digital pressure method is to evaluate the dry time by finger finger pressure coating or liquid surface, feel whether it is still sticky or adhesive feeling. When the coating or liquid surface has no obvious viscosity or adhesion sensation, the surface can be considered to be dry. This method mainly relies on people’s sense of touch and experience, and belongs to subjective evaluation method.

Ang pagkakaiba ng oras ng pagpapatayo sa pagitan ng paraan ng presyon ng daliri at pamamaraan ng pamumulaklak ng cotton ball

Paraan ng pamumulaklak ng cotton ball:

The cotton ball blowing method is to use a blowing tool (such as a blowing pump) upang ihip ng hangin sa ibabaw ng patong o likido, and observe whether there is adhesion on the surface of the cotton ball to evaluate the drying time. When there is no more adhesion on the surface of the cotton ball, ang ibabaw ay maituturing na tuyo. This method is more objective than the shiatsu method and relies on observation and judgment.

Ang pagkakaiba sa pagitan ng dalawang pamamaraan ay higit sa lahat ay namamalagi sa pagkakaiba ng prinsipyo ng pagsubok at mode ng operasyon. The acupressure method is mainly based on touch and experience. It needs to judge the dryness of the surface through the feeling of the fingers. The rule of blowing cotton balls is more objective by observing the adhesion of the surface of cotton balls. Both of these methods are relatively simple and fast methods for assessing surface dryness, ngunit ang mga ito ay hindi tumpak na mga sukat. They can only provide a general estimate of drying time, na kung saan ay apektado rin ng iba't ibang mga kadahilanan, tulad ng uri ng patong, ambient na temperatura, kahalumigmigan, atbp. For some applications that require high drying time, it may be necessary to use more accurate measurement methods and instruments for the evaluation of table drying time.