Screen printing mesh detailed screen printing process

Now the export volume of screen printing mesh is relatively large, which is the Chinese merchant Hebei maishi Wire Mesh Trading Co., Ltd. It has grown to the present with its 30 years of learning experience and innovation with state-of-the-art production machines. Maishi factory technicians reminded friends who bought screen printing meshs not to buy the kind of poor screen printing mesh. If you want to buy it, you can buy it with confidence, and you have a product certificate and a direct supplier. There is no middleman to earn the difference. There is a guarantee for spending your own money.

Screen production requires a frame and mesh. The mesh yarn may be a polyester mesh or a nylon mesh.

The maishi senior engineer taught us the following production process.

Material selection frame grinding degree inspection network frame stretch mesh yarn to ester network plate pulp exposure stencil wash repair edge sealing storage

Material selection

Net frame stretch

Screen on the screen (brushing photoresist)

Exposure

Stencil scouring

The process of stencil production is disordered, and the planners are not required to operate on the ground. However, the CMF planners need to know the selection of the stencil, the mesh number of the stencil, the tension of the stencil, and the viewpoint of pulling the net.

Planners in the selection of stencils

Mainly choose the net frame and mesh, select the mesh and frame size and material of different meshes for the substrate and precision requirements of different materials.

The selection of the frame, the materials used in the production of the frame are mainly wood, hollow aluminum profiles, cast aluminum frames, steel and other materials, each of which has its own advantages and disadvantages.

Wood mesh frame, convenient to manufacture, lighter in materials, mostly used in technical printing, but this kind of frame is not resistant to corrosion and simple deformation, affecting the accuracy of silk screen printing, so it is used as a hand board and a small amount of printing.

Hollow aluminum profiles and cast aluminum frames are the most widely used frame materials. They are not only easy to handle, but also high in strength and corrosion resistance. They are not easy to deform and are used in production.

The steel mesh frame is the most difficult to deform frame compared to the above, but because the steel is relatively bulky, it is used in the same production as usual.

The selection of the mesh is something that the planner must know, because this requirement is marked when the plan document is output.

At the beginning, the most nervous thing is the selection of mesh mesh.

Mesh: It is the precision unit of the stencil. Just like the number of lines in the film, it means that the number of holes in the stencil in one inch is defined as the number of meshes.

For example, 150 mesh means that there are 150 meshes in one inch. Since 1 inch = 2.54 cm, there are 5.9 dots in 1 mm.

In a lot of time, we will hear the master say how many Ts, and where did T come from?

T number: T refers to the number of meshes per square centimeter, and 1 inch = 2.54 cm, so th

at the screen printing mesh 1T = 2.54 mesh, that is, 100T = 254 mesh, 300 mesh = 118T.

Since the film is also converted in inches, it is more simple to convert the stencil according to the mesh.

Screen printing in production as usual accepts 100-400 intent mesh:

100 ~ 250 mesh: the same as usual printing with glitter or pearl powder and other large particles of ink, probably used in the end of a back cover application, because the smaller the number of meshes, the larger the mesh, the more ink, the coverage The stronger the force.

250 ~ 350 mesh: the most commonly used mesh size, this scale can be both pearlescent and perhaps the precision of printing, and the time of printing can eliminate the probability of the paste, do no

t have to wash the net too often, for the cost of production Time also has good control, so planners and factories are more than happy to choose this scale.

350 ~ 400 mesh: It is used in the same high-precision printing results as usual, and is mostly used to print fine ink or numbers.

Second, the selection of mesh materials