Self-drying liquid photosensitive resist plating ink

The liquid photosensitive resist ink LPR-812 is widely used in the etching of precision metal patterns. It has the characteristics of high resolution and strong corrosion resistance. However, the photosensitive resist inks sold on the market are all required to be in a hot air circulation oven at 70~90 °C. Pre-drying for 30-50 minutes, the surface can be exposed to light, development, for the double-sided, you need to bake twice. In use, often encountered the following troubles: (1) baking does not lead to sticky film; (2) excessive baking, the photosensitive film is not photosensitive or difficult to develop; (3) double-sided baking time due to the two sides are not the same, resulting in photosensitive, The development conditions are inconsistent; (4) The photosensitive layer on an oversize metal plate cannot be dried. For enterprises with poor equipment conditions or without an air blow, the problem is more when used and the yield is lower.

Hangzhou Kewang Specialty Ink Co., Ltd. recently introduced LPR-812 liquid-self-drying photosensitive resist ink to users with excellent photographic performance and corrosion resistance. The outstanding feature lies in the user's screen printing or spraying at room temperature (25~30°C). ) It can be fully dried after being left for more than 2 hours, and it can be printed or sensitized, developed and etched without baking, which greatly facilitates the user. Process: screen printing (200~300 mesh) or double-sided spraying → natural drying (approx. 2 h/dark) → printing second side → natural drying → photosensitivity → development (1% sodium carbonate solution) → etching (acid Chemical etching or etching) or electroplating → deinking (1% to 3% sodium hydroxide).
Source of information: pack.cn