Thin Resin Film Wiping Sheet With Suction Adhesion

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Solution Overview

Problem

Conventional wiping sheets face issues of poor durability due to direct lamination of microfiber cloths with polymer sheets and limited flexibility when using resin films of 20-100 µm thickness, making them difficult to attach to concavo-convex surfaces and prone to peeling.

Innovation Solution

A reusable wiping sheet is designed with a microfiber cloth laminated on one side of a thin resin film (<20 µm) and an acryl-based polymer sheet with suction bubbles on the other, providing high adhesion strength and flexibility, allowing easy attachment to curved surfaces and repeated use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a polymer sheet is directly laminated with a microfiber cloth, then the structure is simple, but strength is insufficient and durability is poor

Engineering Contradiction:
Improvestructure simplicityVSAvoidadhesion strength
Core Design Contradiction:
Device complexityVSStrength

Solution Approach 1:

The invention uses a composite structure consisting of a polymer sheet layer and a microfiber cloth layer laminated together. This composite material approach provides both the simplicity of a two-layer structure and the durability of strong adhesion between the layers, resolving the contradiction between structural simplicity and adhesion strength.

Inventive Principle:
Principle #40Composite materials

2Volume of moving object

If a resin film of 20-100 μm in thickness is used as base material, then the structure is compact, but flexibility is poor and attachment onto concavo-convex surface is difficult

Engineering Contradiction:
ImprovethicknessVSAvoidflexibility
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The invention employs a thin polymer sheet that functions as a flexible film, enabling the wiping sheet to conform to concavo-convex surfaces while maintaining a compact thickness. This flexible film approach resolves the contradiction between compactness and flexibility.

Inventive Principle:
Principle #30Flexible shells and thin films

3Ease of operation

If a thin resin film of less than 20 μm is used, then flexibility is improved, but strength may be reduced

Engineering Contradiction:
ImproveflexibilityVSAvoidoverall strength
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The invention creates a composite material system where a thin polymer sheet (less than 20 μm) is combined with a microfiber cloth layer. The thin polymer sheet provides flexibility while the microfiber cloth reinforces the overall strength, resolving the contradiction between flexibility and strength.

Inventive Principle:
Principle #40Composite materials

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 solution results in a strong, durable, and flexible wiping sheet that can be easily attached and detached from devices, effectively cleaning surfaces without leaving residue and maintaining adhesiveness over time, while being cost-effective and versatile for various applications.

Implementation Method 1

a polymer sheet having an adhesive effect due to suction function of bubbles is laminated on the other side

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP1834758B1Wiping sheet
Publication Date: 2010.01.20 RAKUPRI CO LTD
  • EP1834758B1 patent drawingFigure 1
  • EP1834758B1 patent drawingFigure 2
  • EP1834758B1 patent drawingFigure 3

AI summary

It is an object to provide a wiping sheet (4) with sufficient flexibility, high adhesion strength, easy attachment even onto concavo-convex surface, and good adhesiveness and durability. A wiping sheet (4) is characterized in that a microfiber cloth (1) having a dirt wiping effect is laminated on one side of a resin film (3) of less than 20 µm in thickness, and a polymer sheet (2) having an adhesive property due to suction function of fine bubbles is laminated on the other side.