Small Slope: 1. The edges of the graphics are smooth, bright, with a small slope,are too much acidic. It is necessary to reduce the amount of acid supplement, lower the temperature, increase the speed, and lower the water level (1.3~1.5cm).
2. The edges of the graphics are jagged, the layout is gray and dark, and the slope is too small for too little acid. Need to increase the amount of acid supplement and increase the speed. Increase the temperature and increase the water level (1.3~1.5cm).
3. The full-page picture and text are deducted, and the corrosion is shallow in normal time, lack of acid and lack of additives. Need to increase the amount of acid, increase the temperature, and add a little additive
4. The edges of the graphics and text are smooth and bright, and the inner buckle of the side wall is lack of additives, and a little additive is needed
Large Slope: 1. The edges of graphics and texts are jagged, bright, and have a large slope, which is too large for additives. Need to precipitate to remove some additives on the surface of the etching solution, let off a little potion, increase water and acid, increase the speed, and increase the water level (1.3~1.5cm).
2. The edges of the pictures and texts are smooth, bright, with large slope, high temperature and low speed. Need to lower the temperature, increase the speed, and lower the water level (1.3~1.5cm).
3. The edges of the graphics and text are jagged, the layout is dark and granular, with large slopes and too little acid. Need to increase the amount of acid, increase the temperature, and increase the speed.
Spots In The Page: 1. If the amount of acid is too small and the temperature is low, small needle-like pits will appear, which requires a lot of acid supplementation and increase the temperature.
2. The layout is gray, there will be one-sided pitting because the etching solution is too old and a lot of acid is needed
3. The layout is not clean when opening
4. The additives and the acid are mixed unevenly, and the mixing time is short (20-30 minutes)
5. The loading action is too slow, the downtime is long or the anti-numbing liquid is invalid.
Page Graphics Falling Off: 1. The photosensitive glue color before exposure is because the photosensitive glue is damp and discolored.
2. The photoresist discolors after etching, the etching solution is too long, too old, and the corrosion time is too long.
3. The photosensitive adhesive came off when the plate was opened, because the exposure time was too short and the plate-opening time was too long.
4. The upper plate temperature is too high, the speed is fast, the upper plate temperature should be lowered, and the speed should be lowered.
5. Too much acid, less additives, need to reduce acid supplements and increase additives
Layout: 1. The upper plate temperature is too high, the rotation speed is fast, and the etching time is long. It is necessary to reduce the upper plate temperature, lower the rotation speed, and reduce the etching time.
2. If the amount of acid is too much, the increase in the etching temperature is too large. It is necessary to reduce the amount of acid supplement and control the etching temperature.
3. When using the early potion, the etching area is too large.
Page Oxidation: 1. Washing the layout for too long, the layout cannot be blown dry in time, it needs to be rinsed quickly, and the layout is blown dry in time.
2. When the etching plate is placed in a natural environment for a long time, dark lines will appear on the surface, which is easy to oxidize phenomenon. It is necessary to use the packaging to protect the etching plate, isolate the natural air, and water mist oxidation.
3. The etched version cannot touch the water and needs to isolate the water. If it touches the water, it must be dried in time.
