China Education Equipment Purchasing Network News: The display of the projector image needs to be presented on an interface. It can be a projection screen, a white wall, or a water curtain, ground, rockery ... good cooperation between the two can only be appreciated To excellent picture effects. For our ordinary netizens, the most common way is to use a projector with a curtain. If the curtain is dirty, deformed, or discolored, the consequences can be imagined.
Small non-wetting stains, use an eraser
When there are relatively small non-wetting stains, the better method is to gently wipe it off with an eraser. However, if the quality of the rubber is not good enough or if it is a colored rubber, it may not be completely erased and leave a pool of marks, so pay special attention to the use of pure white high-grade rubber, which is easily available in stationery stores. As for the method of erasing, recalling the warm situation when you modified your homework, you know what to do.
Liquid stains or stains have a large area, use detergent
First, make sure that the PH value of the cleaning agent is as neutral as possible. Because the base and coating of the screen are mostly resin or rubber materials, they are easily susceptible to corrosion and discoloration.
Secondly, do not use oil-based cleaning agents and cleaning agents with brighteners, such as Bizhu. You can use water-based, volatile foam cleaners, which have no damage to the screen. You can also choose from cleaners such as collar nets in supermarkets.
Finally, it is important to know what tools to use when cleaning the projector screen. Because the surface of the curtain is actually uneven, be sure to choose an erasing tool with molecular particles as small as possible, such as polymer sponges. Such sponge particles are very small. After the cleaner wets and softens the dust, the concave can be fully removed. Dust in the pit. Conversely, use a rough sponge or towel, which is difficult to clean the small stains in the recesses of the curtain.
For oily stains, use a cotton ball dipped in a small amount of degreasing solvent
This situation is more difficult to deal with, and if not handled properly, there will be a great risk. Only use a cotton ball dipped in a small amount of degreasing solvent. After quickly erasing and desalting, dilute with more purified water or neutral detergent and blot it as soon as possible. However, for some special stains, especially the color stains sprayed on some evening parties, there is currently no effective cleaning method. Therefore, before this lively scene appears, it is best to hold your projector screen tightly to avoid hanging colors.
Bead curtains cannot be cleaned
Commonly used projector screens can be divided into: white plastic screen, glass bead screen, metal screen, etc. according to the screen material. In general, except that GlassBeaded does not have the cleaning characteristics, other curtain materials can basically choose the appropriate cleaning method according to the degree of fouling.
The glass bead curtain is widely used because of its high gain and moderate price. However, because of the fine quartz coating on the surface of the glass bead curtain, stains can easily penetrate into the gaps between the particles, making it difficult to clean up. In addition, the quartz crystals on the surface are also easily stained with stains, that is, secondary pollution occurs. Therefore, when using a glass bead screen, you should take extra care and care, and it is best to store it in time when not in use.
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