Screen printing emulsion scoop coater
- Even emulsion coating
- Helps control coating thickness
- Multiple size options
- Easy cleaning after use
Product details
A screen printing emulsion scoop coater is a tool used to apply emulsion to the mesh before drying and exposure.
The trough holds the emulsion and deposits it through the coating edge as it moves across the mesh. Selecting the appropriate coater and maintaining a consistent technique help produce an even coating and support stencil quality.
Key Features
1. Helps Produce an Even Emulsion Coating
A straight, smooth coating edge distributes emulsion across the mesh. Maintaining a consistent angle, pressure, and coating speed helps minimize variations in coating thickness.
2. Coating Edge Selection to Suit Requirements
The shape of the coating edge affects the amount of emulsion deposited onto the mesh:
|
Coating Edge |
Application Characteristics |
|
Thin edge |
Generally deposits a thinner coating |
|
Rounded edge |
Generally deposits more emulsion, producing a thicker coating |
* Actual coating thickness also depends on the mesh, emulsion, and coating procedure.
3. Durable Materials and Convenient Cleaning
Aluminum or stainless steel versions are available according to the supplied specifications. Keep the trough and coating edge clean to prevent dried emulsion or contaminants from affecting the coating.
4. Various Sizes to Suit Different Screen Frames
Select the coater length according to the required coating area and the available space inside the frame, allowing convenient operation without contacting the frame sides.
Product Information
|
Item |
Information |
|
Product name |
Screen Printing Emulsion Scoop Coater |
|
Function |
Applying photosensitive emulsion to screen mesh |
|
Material |
Aluminum or stainless steel, depending on the version |
|
Coating edge |
Thin or rounded, depending on the version |
|
Size |
Selected according to the screen frame and required coating area |
|
Process stage |
Emulsion coating during screen making |
How to Select an Emulsion Scoop Coater
▫ Screen frame size: Select a coater that covers the required stencil area while leaving sufficient clearance for movement inside the frame.
▫ Coating requirements: Select a thin or rounded edge according to the required emulsion deposit. Check the actual results before coating an entire batch of screens.
▫ Coating edge condition: Choose a coater with a straight, smooth edge free from nicks or burrs. SAATI’s technical documentation also recommends checking the coating edge for defects before use.
General Instructions for Use
1. Prepare the Mesh
Clean and degrease the mesh, then allow it to dry completely according to the screen-making procedure.
2. Prepare the Emulsion
Use photosensitive emulsion prepared according to the manufacturer’s instructions. Work under safelight conditions suitable for the emulsion.
3. Apply the Emulsion
Pour emulsion into the trough, place the coating edge against the mesh, and tilt the coater until the emulsion makes even contact along the edge. Move the coater in a continuous stroke while maintaining a consistent angle and pressure.
4. Complete the Coating
Coat the required sides using the number of passes specified for the emulsion, mesh, and stencil requirements. Allow the coating to dry completely before exposure.
Cleaning and Storage
Clean the coater immediately after use, before the emulsion dries and hardens. Use water or a cleaning agent compatible with the emulsion and coater material, then allow it to dry completely.
Do not use sharp tools or abrasive materials that could scratch the coating edge. Store in a clean location, protect against impacts, and avoid resting the coating edge directly on hard surfaces.
Important Notes
The scoop coater helps control the emulsion coating; stencil quality also depends on the mesh, emulsion, coating technique, drying conditions, and exposure.
There is no single coating-pass count suitable for every application. Follow the emulsion’s technical instructions and the requirements of the printed design.
