一: select the process according to product characteristics

    Product Features: Here, let's first understand the characteristics of the under-brand signage. In our life, the signage can be said to be everywhere. The most common ones are the house building number, the letter box, and various indication guide signs. According to the signage For the purpose of class, we can know that the text on the sign is versatile and non-repeatable. If it is repeated, it will not function as a guide. Then the characteristic of the sign is diversity; we observe it at close range and go with your hand. When you touch it, you can feel the obvious unevenness and layering. After testing by our professional measuring instruments, the text or pattern logo has a depth of 0.15 to 0.3mm. The second characteristic of the signboard is the layering and depth. ;

    Three major processes:

           1. Photosensitive process--pattern transfer changes with the change of film, the ink adhesion is the strongest, the shape of the product is not limited, the film has low cost, and it is suitable for the processing corrosion of products with complicated shapes and etched, and the processing speed is moderate;

          2. Silk screen printing process - using screen printing ink for image transfer, ink adhesion is general, can only be used as a flat plate, the screen version is costly, suitable for a single pattern shallow depth of product processing corrosion, the processing speed is the fastest;

          3. Dry film process--adhesive image transfer, general adhesion, can only be used as a flat plate, dry film cost is low, the operation is troublesome, picking patterns, corrosion processing corners will have pitting, suitable for experiment, processing Slow.

    Selection process: In the characteristics we introduced, the signage is mainly to play the role of marking, each sign has different text and depth, and according to these characteristics, we can judge the most suitable process for sign making is photosensitive process !

    Process flow: the photosensitive process is spray painting - baking - exposure - development - etching - film removal

     Grouped equipment:

          1. Air compressor is required for painting - air compressor

          2. Baking needs to be used in the oven ---- oven

          3. Exposure requires the use of exposure machine - exposure machine

          4. Label development to create a plastic basin as a development tank - plastic basin

          5. Corrosion requires the use of an etching machine, which we usually call as a signing machine - etching machine

          6. Need to use the cleaning tank to remove the film, you can make a plastic basin - plastic basin

          So we only need to choose the following three equipment to produce corrosion processing signs.