1. What is the Silk Screen Exposure Calculator?

The Silk Screen Exposure Calculator estimates the required exposure time for silk screen printing based on light intensity, adjustment factor, and distance from the light source. It helps achieve optimal exposure for quality prints.

2. How Does the Calculator Work?

The calculator uses the exposure time formula:

Where:

• \( \text{Intensity} \) — Light intensity in lux
• \( \text{Factor} \) — Adjustment factor in seconds
• \( \text{Distance} \) — Distance from light source in centimeters

Explanation: The equation calculates the exposure time by considering the light intensity, an adjustment factor for specific materials, and the inverse square law for light intensity over distance.

3. Importance of Exposure Time Calculation

Details: Accurate exposure time is crucial for achieving proper emulsion curing, preventing under-exposure or over-exposure, and ensuring high-quality silk screen prints.

4. Using the Calculator

Tips: Enter light intensity in lux, adjustment factor in seconds, and distance in centimeters. All values must be valid (greater than 0).

5. Frequently Asked Questions (FAQ)

Q1: Why is distance squared in the formula?
A: The formula incorporates the inverse square law, which states that light intensity decreases with the square of the distance from the source.

Q2: What is a typical adjustment factor value?
A: The adjustment factor varies based on emulsion type and screen mesh. Consult manufacturer specifications for recommended values.

Q3: How do I measure light intensity?
A: Use a light meter to measure intensity in lux at the screen surface for accurate calculations.

Q4: What happens if exposure time is too short?
A: Under-exposure can result in incomplete emulsion curing, leading to poor image definition and shorter screen life.

Q5: What happens if exposure time is too long?
A: Over-exposure can make fine details difficult to wash out and may reduce the overall quality of the stencil.