Identifikasi bahan pengait telinga topeng

2021/03/26

Berikut uraian rinci cara mengidentifikasi bahan pengait telinga masker

Identifikasi bahan pengait telinga topeng. Orang dengan pengalaman yang kaya akan memahami bahan pengait telinga topeng, lebar total dan ketebalan topengpengait telinga, etc., as soon as they touch the maskpengait telinga. However, as a novice who has just stepped into the field of entrance shieldpengait telinga, it is obvious that it depends on the accumulation of work experience to achieve that level. The ways to distinguish thepengait telinga of the mask include: touching (the feel of thepengait telinga of the mask), observing its color, burning, etc.

 

Touch method, cotton mask ear straps, polyester mask ear straps made of cotton, feel soft, smooth, bright in color, smooth, and light in material; mask ear straps made of polypropylene cloth (PP) feel astringent and hard. Smooth, poor smoothness; polyester mask ears have a dull tone, but have good washing fastness and a heavier proportion; polyester staple silk (also known as polyester civilian silk, alias polyester) polyester civilian silk maskpengait telinga feel Similar to cotton material, it feels soft.

 

Combustion method: Use fire to ignite it, observe the burning flame, smell the smell after burning, look at the burned waste, and then distinguish the material of the maskpengait telinga.