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TDS Two‑component dual‑cure emulsion

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TD‑LT English Version

Address: No.20 Yunfeng Road, Longhua New District, Shenzhen Tel: 0755‑3553‑1118

1. Product Description

表格
ItemSpecification
Product Name / ModelTD‑LT Diazo Dual‑Purpose Photo Emulsion
AppearanceBlue milky liquid, two‑component system (emulsion base + diazo photosensitizer)
Package1KG / 5L plastic drum with matched diazo photosensitizer kit
ApplicationFor conventional UV lamp exposure stencil making, general‑purpose water‑&‑solvent resistant emulsion.Suitable for signs & nameplates, membrane switches, paper, plastic, glass and textile printing. Compatible with solvent‑based and water‑based inks for mass‑production with moderate fine lines & halftones, cost‑effective general grade.
FeaturesSolid content:37‑38%; Viscosity:5200‑5800 cps @25 °C;Dry stencil thickness:3‑5 μm;Resolution on 350‑mesh yellow mesh:38‑45 μm;Minimum resolution on 420‑mesh yellow mesh:33‑38 μm;Dual water‑solvent resistance; good water & solvent resistance;Moderate diazo‑sensitivity, wide exposure latitude;Smooth coating & leveling; flexible stencil film with good anti‑peeling performance;Easy reclaiming for mesh recycling; high cost‑performance for volume production.
Storage & Shelf‑lifeStore at 5‑25 °C in cool dark place. 12‑month shelf‑life for unmixed emulsion. Use sensitized emulsion within 7‑14 days after mixing.

2. Operating Instructions

⚠️ Two‑component requirement: Work under yellow safelight. Dissolve diazo photosensitizer with pure water, mix thoroughly into emulsion base, rest for 30‑45 min for defoaming before coating.
  1. Mesh Pretreatment Degrease mesh with degreaser. Roughen mesh with abrasive paste for normal jobs; skip roughening for high‑mesh fine stencils.
  2. Dry screen for use at 35‑40 °C (max.42 °C), ambient humidity 45‑55%.
  3. Coating & Drying (adjust passes as required) ‑ Ink‑side 2 passes + Print‑side 2 passes; dry 35‑40 °C, humidity 45‑55%, 10 min ‑ Ink‑side 1 pass + Print‑side 3 passes; dry 35‑40 °C, humidity 45‑55%, 10 min ‑ Ink‑side 0 pass + Print‑side 1 pass; dry 35‑40 °C, humidity 45‑55%, 10 min Net dry stencil thickness approx.7‑8 μm. Adjust coating passes for target film‑thickness.
  4. UV Exposure (iodine‑gallium lamp / mercury lamp) Determine optimal exposure time by exposure step‑wedge film. Insufficient exposure leads to poor solvent‑resistance & short print‑life; over‑exposure reduces resolution. Retest parameters if light source power changes. Rest screen for 1‑3 minutes after exposure.
  5. Development (Wash‑out) Wet both sides of screen with low‑pressure water (soak ≤1‑2 min), wait 1‑2 min. Spray print‑side with fan‑shaped low‑pressure water until image appears clearly.
Focus washing on print‑side. Avoid excessive rinsing on ink‑side to prevent pinholes. Water‑gun distance approx.60 cm from screen. Gently rinse ink‑side for 1‑2 min, wash away emulsion scum on both sides.
  1. Post‑development drying: 35‑40 °C (max.42 °C), humidity 45‑55%, for 20‑30 min.
  2. Screen inspection & repair. Secondary post‑exposure is available for longer print‑run.
  3. Block‑out the screen.

3. Storage, Handling & Safety Notes

Water‑miscible, non‑flammable, low environmental hazard. May cause mild skin irritation; low inhalation risk under normal temperature.

First‑aid measures

‑Inhalation: Low volatility, negligible inhalation hazard. ‑ Ingestion: Rinse mouth thoroughly. Do NOT induce vomiting. Seek medical attention if discomfort occurs. ‑ Skin contact: Remove contaminated clothing, wash skin with soap and running water. ‑ Eye contact: Remove contact lenses. Flush eyes & eyelids with plenty running water for ≥15 minutes, seek medical help if irritation persists.

Personal Protection

Ensure good ventilation; handle under yellow safelight. No eating, drinking or smoking in working area.

Storage

Store at 5‑25 °C, avoid high‑temperature and direct sunlight.
After mixing with photosensitizer, finish usage within 7‑14 days; long‑term storage is forbidden.

感光胶型号汇总简表（可直接放进产品目录）

表格
型号类型成像方式定位最小解像敏化后有效期
CTS‑9单组份预敏化CTS 激光直接成像通用激光制版30‑35μm直接使用
CTS‑H02双组份双固化CTS 激光直接成像工业高耐印激光版28‑33μm7‑14 天
CTS‑H08双组份双固化CTS 激光直接成像高端精细网点细线激光版24‑29μm7‑10 天
TD‑LT双组份重氮传统 UV 碘镓灯晒版通用性价比水油两用33‑38μm7‑14天