(1) Look at the feel
Some people think that the thicker the color filter, the better. This is a misunderstanding. The quality of the color filter is mainly related to elasticity, craftsmanship and toughness, and has no direct relationship with thickness. When identifying the color filter by hand, it mainly depends on the feel and toughness. Usually, the softer the feel, the better the quality and the stronger the flexibility. The inferior film has no elasticity, lacks toughness, no texture, and is easy to wrinkle. Some manufacturers cannot meet the basic requirements of color film explosion.
(2) See scratches
There is no scratch on the surface of the inferior film, so it is prone to scratches and discoloration when rubbed by hand.
(3) Smell bad
The color film has no peculiar smell. If it is made of inferior materials, there will be a pungent smell, which can be smelled when you touch it carefully.
(4) Look at the dirtiness
The dirtyness of the color film is also something that cannot be ignored. It is recommended that consumers use a pencil to draw a few drawings on the paper during the purchase process, and then use an eraser. The general color film, even if the surface has a bumpy texture, is easy to wipe clean. , on the contrary, if it is an inferior film, it is easy to wear or wipe clean.
