PC film manufacturers introduce the structure of PC film panel
PC film manufacturers Production of PC panel_ The structure of membrane panel can be divided into five layers: panel layer, circuit layer, sandwich layer, cushion layer and back layer.
I. panel layer. The panel layer is usually made of fine pictures and characters printed on colorless transparent sheets such as pet and PC which are less than 0.25 mm in diameter
Identification and key function, so the selection of information must have high transparency, high ink adhesion, high elasticity, folding resistance and other characteristics.
Circuit layer. It is used for the upper and lower layers of the control circuit. The polyester film with excellent function is selected as the carrier of the switch circuit pattern, and the special technology is used for silk screen printing on it
Silver paste, carbon paste or gold paste makes it conductive.
3. Adhesive layer. It is located between the upper circuit layer and the lower circuit layer, and plays the role of sealing and connecting. Generally, pet double-sided adhesive tape is selected. When selecting the material of this layer, the commodity should be fully considered
Total thickness, insulation, circuit key pack feel and tightness.
4. Cushion layer. The most important function of the pad layer is to connect the panel layer and the circuit layer closely to achieve the sealing and connection functions. Together, it has high-strength viscosity and anti-aging property. except
In addition, if the commodity has special demand, the cushion layer must also use different properties of information according to the needs.
5. Adhesive layer on the back. The selection of back glue is closely related to which material the membrane switch panel is pasted tightly. The common double-sided adhesive tape, 3M adhesive and waterproof adhesive are commonly used.
The above is our PC endurance board manufacturers on PC light diffusion endurance board an introduction, hope to help you.