The Photo chemical etching is a process of engraving the materials with the help of high temperature and high pressure. This process uses a spray or etchant in order to remove the parts of the material. In this way, the permanent image on the surface of the metal comes to existence. The essential part of the etching process is the application of the resist or mask.
We apply the layer of mask or resist on the surface of metal or the material. This resist or mask then faces the process of removal on the selective parts of the material. The process of selective removal from the material surface is the main cause of the production of the specific design.
The etching machine carries out the chemical reaction between the chemical and the surface of the material. The etching machine amends this corrosive reaction with the help of heating the chemical and then spray it on the surface of the material surface. All this process of heating and spraying occurs at the high temperature and pressure.
When the etching machine sprays the chemical on the surface of the material, it dissolves the material. The chemical dissolves the unprotected parts of the material in the process of Photo chemical etching. The chemical dissolves the material in a smooth way effectively in the form of atom to atom. In this way, it produces a specific etched image on the surface of the material.
There is a particular process for the chemical etching. There are certain steps in this method.
In the first step of the process, the manufacturers clean the surface of the material whose etching is to do. This step removes the grease or scratches on the surface of the material. Generally, we can see the slight tooth on the surface of the material during this process. However, the process of Photo chemical etching often allows the ink to go deep in to the surface of the material.
During this process of etching, the finishing of the surface of the material is an essential process. This finishing of the surface of material gets with the help of scrub or rubbing process. Therefore, the process of cleaning the surface of the metal is the first step of the photo chemical etching.
The process of the drawing the etched image on the surface of material is the second step of the photo chemical etching. For the purpose of drawing on the surface of the material, there are different shapes and sizes of the pen tools. However, the preference is for the pens with the fine and wide pins.
This process is helpful in the process of the creation of the resist on the surface of the material. Therefore, the ink of the pen in this process produces the resist on the surface of the material. In this way, the process of drawing produces the resist that is important in the Photo chemical etching process.
For the purpose of the resist, the brown packing tape is more helpful in this process. Therefore, we can use brown pack tape in the process. So, the brown packing tape produces and resists the etchant on the surface of the material. The benefit of this brown pack tape is that it can last and remain for the longer time as compared to the ink.
The use of this brown packing tape is particularly helpful in the production of the geometric designs on the surface of the material. The manufacturers stick this tape on the surface of the material. After that they cut the parts of it on the surface of material with the help of the special knife.
The protection of the surface of the material is the last step of the Photo chemical etching process. The tan tape is essential in the protection of the surface of material. The use of the tan tape is mostly on the edge and back of the material. If we apply the tan tape on the edges and back of the material, these edges and back get the protection from the ink.
Besides the protection of the material, the purpose of this step is to save the ink and prevent its wastage. After this, the manufacturers put the etchant in the container that is of plastic or glass. Now they put the piece of the material in the etchant. The piece in the etchant has the side of design in the downward position. Now hold the edge of the container and strongly agitate the etchant solution.
The etching of the glass is an easy and fun process. Vinyl is an important material in the etching of glass. There is a certain cut depth for the vinyl material in the process of Photo chemical etching. In the ideal case, vinyl should have the complete cut depth for this process. The chemical etching of glass has following steps.
There are some tools that are necessary in the process of etching of glass. These are sharp scissors, the chemical etchant, the tapes for the purpose of transfer, and pointy implements that have the purpose of the weeding of the vinyl.
For the purpose of etching, the glass should have the sides that are almost vertical. The curved walls are helping in the process of eliminating the wrinkles with the help of stretching the vinyl mask. This process is not easy and demands the hard strives in order to prevent the distortion of the mask.
The cleaning of glass is an essential step in the etching of glass. This process is helpful in the removal of any residue that is present on the surface of glass. Use a glass cleaner for the purpose of the cleaning of glass and then use isopropyl alcohol after it. Keep in mind that you should not touch the surface of glass after cleaning it.
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The next step in the photo chemical etching of glass is the cutting of vinyl mask. The cutting of vinyl mask is carried out with the different types of the cutting tools. The vinyl cutter, the Exacto knife and special stencils are particularly helpful for this purpose.
The photo tool in the photochemical milling has the function to produce the complex components from the sheet of a material. This tool cuts the material from the both sides according to the design of the artwork on the surface of the material.
The chemical milling using the photo tool is an economic process and is better than any other method. Moreover, it is a versatile and cost-effective step to use the photo tool in the process.
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