IML (In Molding Label) in-mold insert injection molding, its process is very remarkable: the surface is a layer of hardened transparent film, the middle is the printed pattern layer, and the back is the plastic layer. Because the ink is sandwiched in the middle, the product can prevent The surface is scratched and resistant to friction, and the color can be kept bright and not easy to fade for a long time.
IML in-mold injection molding process cutting materials---plane printing---ink drying and fixing---sticking protective film---punching positioning holes---thermoforming---cutting the outer shape---material injection molding process Process
1) Cutting material: Cut the roll film Film into square blocks of designed size for printing and forming processes.
2) Plane printing: According to the required icons and texts, a film net is made, and the icons and texts are printed on the cut film square blocks.
3) Ink drying and fixing: Place the printed film Film square in a high-temperature oven to dry, the purpose is to fix the IML ink.
4) Paste protective film: Avoid fouling the surface of the printed film during the process of punching positioning holes. Sometimes a single or double protective film is required.
5) Punching positioning holes: positioning holes for thermoforming must be punched accurately. The positioning holes in the shearing process are sometimes punched in advance.
6) Thermoforming (high pressure or copper mold): After heating the printed film, use a high pressure machine or copper mold to form it in a preheated state.
7) Cut the outer shape: cut off the waste of the formed three-dimensional film.
8) Material injection: Put the film exactly the same as the three-dimensional shape of the front mold on the front mold, and then inject the finished IML.
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