在多孔材料之上和之中无泵输送和精确控制液体体积的润湿图案方法设计
By setting wedge-shaped conveying elements and superhydrophobic/superhydrophilic treatment on porous substrates, the directional delivery of liquids is achieved by utilizing the Laplace pressure gradient, which solves the problem of inflexible liquid delivery on porous fiber substrates and achieves efficient and directional liquid delivery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KIMBERLY CLARK WORLDWIDE INC
- Filing Date
- 2017-11-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to achieve controlled unidirectional liquid transport on porous fiber substrates, especially on high-density paper towels. Insufficient regulation of liquid flow in different directions results in inflexible and inefficient liquid transport.
By setting wedge-shaped delivery elements on a porous substrate and combining superhydrophobic and superhydrophilic treatments, directional delivery of liquids is achieved using the Laplace pressure gradient. The design of the wedge-shaped delivery elements allows liquids to be delivered from the narrow end to the wide end, and directional delivery of liquids away from the deposition surface is achieved through a reservoir.
It enables efficient and directional liquid delivery on porous substrates, allowing control of liquid volume and direction without the use of pumps, thus improving the flexibility and efficiency of liquid delivery and making it suitable for the manufacture of low-cost diagnostic devices.
Smart Images
Figure CN109963651B_ABST