How do wet wipes lids stay strong with 25% weight reduction? Structural optimization is key!

In the current market, universal wet wipe lids (approximately 99×64mm) are the mainstream thanks to their wide-opening design, accommodating packages of 60-120 wipes. As a wet wipe lid manufacturer, we have focused on downstream cost requirements and launched three lids, 8g, 7g, and 6g, based on the same design. The 6g version boasts a 25% weight reduction. However, this significant weight reduction inevitably raises concerns in the market: Is the lid structurally strong enough? Inadequate support can lead to shaking and instability when opening.

In fact, through specialized structural optimization, our 6g lid effectively avoids a decrease in pressure resistance at a low weight. Conventional 6g lids lack a specific design and are prone to shaking and deformation when pressed. Our 6g lid, however, has significantly improved pressure resistance through internal structural optimization, addressing the common instability issues associated with lightweight lids.

The key difference between the two lies in internal support: Conventional 6g lids are hollow at the corners and lack support, while our 6g lids incorporate columnar support structures on all four sides. This design doesn't rely on thicker materials. Instead, it strengthens stress-bearing areas through a rational distribution of support points, reducing weight while ensuring stability.

Key conclusion

When the lid's weight is reduced from 8 grams to 6 grams, internal structural design must compensate for the loss in strength. Simply reducing material can lead to wobble, while optimizing the support structure can achieve a balance between lightness and stability at a low weight.