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Dongguan Chun Yip Electronic Technology Co.,Ltd.

  • Contact:Ivan
  • Tel:+86-769-85382422
  • Mobile phone:+86-13631669420
  • Add:No.19 5th Xingye Rd Xiabian Dist. Changan Town Dongguan City Guangdong Prov. China

New Information

What aspects of the production of the film panel should be checked by the manufacturer?

From:admin Date: 2019-03-26
            Membrane switch manufacturers must strictly control the quality of the produced film panels. Therefore, for each batch of finished or ex-factory film panels, qualified inspections are carried out. In this case, the quality of the film panels can be guaranteed. The following is Chuangming Electronics. The finished film panel is inspected in 8 aspects, and it is specially shared with you:
            1. Viewing the raw materials of the film panel: adhesives, adhesives, panels, carbon ink, spacers, reinforcing plates, substrates, silver paste, and insulating printing should conform to the drawing rules.
           2, the shape of the comparison: the shape of the film panel, conductor lines, insulation treatment, liner combination, etc. should be in line with the drawing rules or supply of samples.
           3. Checking scale: The scale of the drawing without tolerance shall conform to the specification, and the other shall conform to the drawing rules.
           4, view the appearance: the film panel can not have significant shortcomings, such as the lack of strokes; characters, light spots; deinking, stains, scratches; clear window overflow, residual glue. Unbiased representation, such as print set, combination of upper and lower keys, line and keypad, film panel and button combination, bubble button and substrate at the button of the film panel. Stamping burrs and extrusion dimensions should not be greater than 0.2mm, and the position should be toward the side without conductors.
           5, check the color: select the visual method, compare with the sample or color card to see if there is color difference, the color request is particularly strict with the color difference meter.
           6, the adhesion of the ink view: ink through the clear tape attached hand pressure to ensure that no bubbles after 10 seconds, agile peeling, no ink drop appearance. After the insulating ink is dried, the ink surfaces are placed against each other and then pressed for 24 hours, so that the insulating surfaces are not mutually adhered. After pressing the pressure-sensitive adhesive tape for 1 minute without air bubbles, the gel was peeled off and no ink was dropped.
          7. Peel strength inspection: The peel strength of the glue should not be lower than 8N/25mm.
          8, bubbling inspection: the height is flat, the strength is balanced. Plane type: 57 ~ 284g force, touch feeling: 170 ~ 397g force.
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