TDS Laser Plate-making Photoresist Emulsion
Product Specification of Photosensitive Emulsion
Item | Specification |
Product Name / Model | CTS-2 Laser Direct Exposure Photoresist |
Appearance | Blue milky liquid |
Packaging | 5L / 6L plastic pail |
Application | Fabrication of screen printing stencils for garment printing, PCB, glass, TP, membrane switches, nameplates and other precision screens via laser direct exposure. |
Product Features | Solid content: 36%; Medium viscosity: 5500–6500 CPS @25℃;Dry film thickness: approx.3–4μm;Min. resolution:35–40μm for 350 mesh yellow screen;Min. resolution:30–35μm for 420 mesh yellow screen;Dual resistance for water & solvent inks;Excellent moisture resistance;Medium exposure speed;Good coating fluidity;Superior Rz surface roughness after multiple coating. |
Storage & Shelf Life | Store at 5–25℃ ambient temperature; shelf life: 12 months |
- Operating Instructions
- Screen Pre-treatment: Degrease mesh with degreaser or roughen mesh surface with mesh abrasion paste (roughening is unnecessary for high-mesh precision screen production).
- Pre-dry screen for standby: Dry at 35℃~40℃ (max.42℃), relative humidity controlled at 45%–55%.
- Coating: 2 coats on ink side + 2 coats on printing side; dry at 35℃~40℃ (≤42℃, RH45%–55%) for 10 mins.
- Coating: 1 coat on ink side + 3 coats on printing side; dry at 35℃~40℃ (≤42℃, RH45%–55%) for 10 mins.
- Coating: 0 coat on ink side + 1 coat on printing side; dry at 35℃~40℃ (≤42℃, RH45%–55%) for 10 mins. Final net dry film thickness is around 8μm. Coating method varies for different industries; target film thickness can be achieved by repeated coating.
- Exposure: Calibrate exposure energy with exposure test strip. Without test strip, perform exposure with various energy values on a single screen and select optimal parameter based on developing result. After parameter confirmation, regularly test and adjust exposure energy: insufficient exposure leads to poor solvent resistance and short printing life; over-exposure reduces stencil resolution.
- Leave screen standing for 1–3 mins after exposure.
- Developing: Wet both screen sides with low-pressure water or soak within 1–2 mins, then rest for another 1–2 mins. Continuously flush printing surface with fan-shaped low-pressure water until complete patterns appear.
Note: Only flush printing side; excessive washing on ink side causes pinholes and damages edge sharpness. Maintain approx.60CM distance between water gun and screen. Gently rinse ink side for 1~2 mins, then flush all residual sludge thoroughly from both screen sides after inspection.
- Drying: Dry at 35℃~40℃ (max.42℃, RH45%–55%) for 20–30 mins.
- Screen Inspection & Repair**: Secondary supplementary exposure on standard exposure machine to improve printing durability.
- Mesh Sealing
- Storage & Operation Precautions
- This product causes negligible environmental harm, slightly soluble in water and non-flammable.
- Limited hazardous properties; may trigger mild skin irritation upon contact, low inhalation risk under regular working temperature.
- First-aid guidance for different exposure conditions:
- Inhalation: Non-volatile component, no special treatment required.
- Ingestion: Rinse mouth thoroughly, DO NOT induce vomiting; seek medical help if discomfort occurs.
- Skin contact: Remove contaminated clothing and wash affected skin immediately with soap and clean water.
- Eye contact: Remove contact lenses, continuously irrigate eyes and eyelids with plenty of clean water for minimum 15 minutes; consult doctor promptly for any irritation.
- Personal Protection: Ensure sufficient ventilation at workplace.
- No eating, drinking or smoking during operation.
- Storage:
Potential hazardous reactions under abnormal conditions:
Avoid exposure to high temperature or direct sunlight.
Store in cool and dark environment at 5~25℃ with relative humidity of 45%~55%, shelf life is 1 year.
Stir or shake fully to homogenize before application if stored for a long time.
