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Polyester Bolting Cloth step detailed version(1)

I have already introduced the steps of Polyester Bolting Cloth before. If you are not very familiar with it, please see the detailed version of this time. If you still have any questions, please feel free to contact us. You have to believe that we are always there, we are Friends standing on one side, helping you is helping us.

Polyester Bolting Cloth production detailed steps analysis

1.An exposure

The film film of the film is attached to the printing surface (convex surface) of the screen, and then exposed in a vacuum exposure machine. The exposure time depends on the thickness of the photoresist and the energy of the exposure lamp and the requirements of the screen (the general line, solder resist, characters, and screen time required for the screen). Generally, the exposure ruler is used to determine the exposure time. Exposure time, and then fix the exposure time of the screen.

step:

First, the film will use the magnifying glass to match the latitude and longitude of the screen, and the line should be parallel to the wire. (Note: especially lines, characters)

Put the good net into the exposure machine, adjust the time, and after vacuuming, turn on the exposure switch. Note: If the exposure time is too short, it will cause the photosensitive adhesive to fall off easily, the line becomes thicker, the solder resist is not strong, and the character number is not strong. When the exposure time is long, it will cause quality defects such as incomplete development or thinning of the line. happened. Therefore, it is especially recommended that the accurate exposure time comes from scientific practice. Before exposure, the exposure time must be measured by the exposure slide rule, and then the exposure time should be fixed. Do not do things by experience and work blindly.

2. Development

Remove the screen from the exposure machine, remove the negative film, first moisten the two sides of the screen with gentle, non-pressure cold water (warm cold water 20-30°C), wet for about 30-60 seconds, then rinse thoroughly with a high-pressure water gun until the image is displayed. Then use an absorbent cloth to blot excess water around, then place the wire into an oven at 30-40°C to dry.

step:

Immerse the exposed screen with water on both sides for about 1 minute, and rinse the net with high pressure water until it is completely clear;

In the light, check to see if it is completely clear, whether the plate making is successful, and if it is not good, redo it. · After drying the wet net, put it under the light box and repair the defects such as trachoma and burrs with the netting paste.

3. Check for use

After the screen is dried, check whether the prepared screen is in compliance with the production and processing requirements. If the standard is reached, immediately seal the net to make the production staff ready for use; if it is not suitable, repair or re-manufacture immediately.