LPI etching ink

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US $9.5-14.5 / Kilograms | 1 Kilogram/Kilograms (Min. Order)
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Overview
Quick Details
Type:
pcb etching ink
Printing Type:
Screen Printing
Place of Origin:
Guangdong, China (Mainland), Guangdong, China
Brand Name:
Dong hua, DH
color:
Blue or black
SupplyAbility
SupplyAbility:
10000 Kilogram/Kilograms per Month
Packaging & Delivery
Packaging Details
3kg or 5kg/pot;12kg or 20kg/carton
Port
Shenzhen or Hongkong
Lead Time :
7days after got the payment

Specifications

1)It's photoimageable etching and plating ink
2) excellent coating ability
3) can be totally shown via various coating methods

 

Photo-imageable Etching and Plating Resist Ink

 

It is a new kind of photoimageable etching and plating resist ink. Its excellent coating

 

ability can be totally shown via various coating methods. Sharp definition, high accuracy and very minor under cut make it extremely suitable for producing one side, double-sided , high precision multi-layer and flexible PCB boards. Its acid-resistant ink which also good for the boards such as stainless steel , iron and aluminous material. The special characteristic is can be for Sn plating without post-cure.

 

Example of operation process:

 

1. Ink mixing

    Mixing(Shaking) well for 5-10 min.

 

2. Pretreatment

    Mechanical brushing or acid treatment.

 

3. Screen printing

    a.  Use nylon, polyester or stainless steel screen for printing

    b.  100-250 mesh/inch.

    c.  Rubber/Polyurethane (PU) Squeege with the hardness of -65-75 .

    d.  Printing Angle 70-80

    e.  Film thickness: 8-16 um

 

4.  Precure

     First side 75±5 x 10 min

     Second side 75±5 x 15 min

     Both side cure at the same time 75±5 x 15 min

 

5.  Exposure

     Energy required from UV rays:100-200mj/cm2

     Photographic sensitivity :300-500nm

     (Photosensitivity: 6-9 step)

 

6.  Developing

      By 1-1.2% sodium carbonate (Na2CO3) solution

     Spraying pressure:2-3 kg/cm2

      Temperature: 30-32

      Time: 45-60 sec.

 

7.   Stripping

      The coating could be stripped completely with 3-5% NaOH solution at 45-50;

      Spraying pressure 2-3kg, 1-2 min