Absorbent Sheet with Cut Patterns for High-Efficiency Oil Removal

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Solution Overview

Problem

Existing methods for removing oil droplets and films from food surfaces are passive and inefficient, failing to effectively increase contact area for absorption.

Innovation Solution

An absorbent sheet with specific cuts and configurations that allow it to be transformed into a three-dimensional shape, increasing contact area and absorption efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional passive oil draining methods are used, then the structure is simple, but the oil absorption efficiency is low

Engineering Contradiction:
Improveoil absorption efficiencyVSAvoidstructure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The sheet is divided into multiple strips by providing first cuts and second cuts that extend partially through the thickness, creating separable segments that can be independently positioned to wrap around food items, thereby increasing contact area and absorption efficiency

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from a flat two-dimensional sheet to a three-dimensional wrapped structure by creating strips that can be folded and positioned in multiple spatial dimensions, allowing the absorbent material to conform to and surround the food item, dramatically increasing the contact surface area

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If the sheet is made into a three-dimensional shape to increase contact area, then the absorption efficiency improves, but the storage space requirement increases

Engineering Contradiction:
Improveabsorption efficiencyVSAvoidstorage volume
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

The strips are designed to be nested within each other when not in use, with each strip fitting into the space created by adjacent strips, allowing the three-dimensional structure to collapse into a compact form that occupies minimal storage space while maintaining the ability to expand into the full three-dimensional wrapping configuration during use

Inventive Principle:
Principle #7Nested doll (Nesting)

3Area of stationary object

If multiple cuts are provided to create strips, then the contact area increases, but the structural strength decreases

Engineering Contradiction:
Improvecontact areaVSAvoidstructural strength
Core Design Contradiction:
Area of stationary objectVSStrength

Solution Approach 1:

The cuts are designed with varying characteristics - first cuts extend partially through the thickness while second cuts create perpendicular segments - creating zones of different structural properties where the sheet maintains sufficient strength at connection points while providing adequate segmentation for wrapping, thereby balancing structural integrity with contact area requirements

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The absorbent sheet effectively removes oil droplets and films by dramatically increasing contact area, providing high absorption efficiency and convenience in use and storage.

Implementation Method 1

an absorbent sheet for removing a droplet or a liquid film attached to a surface of an object

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS12428787B2Absorbent sheet, absorbent sheet roll and oil absorption method
Publication Date: 2025.09.30 KOUDA YASUO
  • US12428787B2 patent drawing
  • US12428787B2 patent drawing
  • US12428787B2 patent drawing

AI summary

An absorbent sheet can include a sheet portion defining a plurality of first cuts; a plurality of second cuts intersecting the first cuts; an edge portion provided near an edge of the sheet portion in which the first cuts are not provided; and a reed shape portion having a plurality of loose end aggregation portions; wherein the plurality of loose end aggregation portions are connected at a plurality of the edge portions which face each other across the reed shape portion; wherein the plurality of the second cuts are provided between the first cuts; and wherein a plurality of loose ends are formed by connection of a plurality of the second cuts with a line segment portion between two edge points of the first cut.