A brief explanation of how to test dust-free cloths and cleanroom paper.
How to test cleanroom cloth:
1. The quality of a dust-free cloth depends on its thickness and weight. The heavier the weight, the thicker the cloth. Use different weights for different products.
2. Pull the cloth from both sides and then carefully examine it with a magnifying glass, tilted towards a light source, to see if there are any broken fibers. Broken fibers will appear as lint on the surface of the cloth. The fewer broken fibers, the better the cloth.
3. Use a dust-free cloth to wipe fingerprints or Chinese characters on your touchscreen phone to see if they can be removed immediately.
4. Dip the cloth in alcohol and wipe your phone screen or glasses to see if they leave any smudges or debris.
5. Shake the cloth under the cleanroom light to see if a large amount of debris falls off.
How to test cleanroom paper:
1. Mainly check for paper lint on the surface. Rub it between your hands to see if it sheds a lot of lint.
2. Use your hands to feel its hardness and thickness. Simple testing methods refer to emergency methods that are generally used when there are no instruments and testing is needed. Professional testing also requires professional equipment and must be carried out by professional institutions. Only in this way can it be authoritative and recognized by consumers!