Understanding Blister and Card Size Compatibility

When it comes to packaging products, especially in retail, the fit of the blister pack and the backing card is crucial for both aesthetics and functionality. Here are the step-by-step considerations to ensure the blister size corresponds to the cardboard backing:

1. Measure the Cardboard Backing

Start by accurately measuring the dimensions of your cardboard backing. This includes width, height, and thickness. You will need these measurements to determine the appropriate size for your blister.

2. Determine Blister Size

The blister should be designed to match the size of the backing card exactly or, at most, be 1 mm larger in both dimensions. This ensures that the product is secure within the packaging:

• Width: Blister width ≤ Card width + 1 mm
• Height: Blister height ≤ Card height + 1 mm

By following this guideline, you help prevent the product from moving excessively within the package.

3. Ensure Easy Sliding

The blister should allow the cardboard backing to slide in easily but fit snugly without allowing it to dangle. To achieve this, consider:

• Tolerance Levels: Small tolerances (e.g., 1 mm) are essential for keeping the backing card secure yet easily removable.
• Material Flexibility: Ensure the blister material is flexible enough to allow easy insertion and removal while still providing enough resistance so that it does not fall out during handling.

4. Test the Fit

Before finalizing your packaging design, conduct tests to ensure that the blister fits the cardboard backing as intended. Make adjustments based on user experience to improve usability.

5. Finalize Design

Once you are satisfied with the fit, finalize your design. Ensure that all measurements are precise, and considerations for both the user experience and product protection are met.

By following these steps, you can ensure that your blister packaging is both functional and aesthetically pleasing for your products, creating an optimal experience for the end user.