Loose Powder Cosmetic Packaging with Membrane Sieve and Support Surface

The sieve surface is segmented into multiple small compartments or cells, each capable of holding a limited amount of powder. This segmentation prevents the accumulation of large amounts of powder on the sieve surface, thereby reducing the risk of powder spreading and container dirtiness while still allowing brush access to individual compartments for powder pickup.

Different regions of the sieve are designed with varying properties - some areas have open surfaces for brush access while other areas have enclosed or restricted surfaces that prevent powder accumulation. This local differentiation allows the sieve to simultaneously enable powder pickup while minimizing powder spread and container contamination.

The sieve is divided into multiple small compartments, each with its own pin holes for powder passage. This segmentation ensures that powder can pass through the pin holes of each compartment while limiting the total amount of powder that can accumulate on the sieve surface, thereby reducing powder waste and excess accumulation.

The sieve is designed as a porous structure where the pin holes are distributed across the surface in a pattern that allows adequate powder passage while maintaining structural integrity. The porous design enables controlled powder flow through the sieve while preventing excessive powder buildup on the surface.