Inspection of FPC Membrane Switch Panel During Manufacturing

When making a FPC membrane switch, it is important to carefully check the characters printed on the membrane switch to avoid mistakes. Here, Jiuyi explains five points to pay attention to when making FPC membrane switches:

Inspection of the panel when making FPC membrane switches:

• First, you need to know the useful scale of your plan and the requests, such as positive and negative film, positive and negative (FPC membrane switch circuit and the front and back printing need extra calibration), and the shape of requested lines and dots. If you are going to combine plates, is the direction accurate?

• The question of font. The font used must match the output base equipment. If a distant font is used, it must be converted to curves.

• Whether there are any faults on the content of the FPC membrane switch panel, including whether the font has scrambled code, whether the graphics are in separate colors, whether there are static lines, and whether the film has scratches, etc.

• Whether the surface is dirty. Sometimes, drug solutions and track rollers may cause stains on the surface, which will affect the quality of plate exposure.

• Positioning points and diagonal lines, whether the plate labels are complete, and whether each sheet is strictly aligned. Also, due to the accuracy errors of drawing and photo typesetting machines, the later single-color plates and the previous plates cannot be strictly aligned. They must all be output together, otherwise there may be inaccurate color matching.

Cleaning of FPC membrane switch:

(1) The surface to be adhered for cleaning the FPC membrane switch.

(2) Compare the sizes.

(3) Peel the centrifugal paper on the bottom of the FPC membrane switch about 10mm from the edge.

(4) Then place the FPC membrane switch in the corresponding position, stick some parts, then slowly tear off the remaining centrifugal paper, and then stick it to the corresponding position one by one.

(5) If the membrane switch on the reverse side of the centrifugal paper needs to be peeled off during the sticking process, it needs to be placed first, facing up, to prevent sticking to other objects and affecting the sticking process.