Coating Sheet with Projections for Anti-Adhesion

Solution Overview

Problem

Existing solutions for preventing unlawful advertising materials from adhering to public and private facilities, such as street lights and traffic signals, are either costly or aesthetically unpleasing due to the need for additional bands and fasteners, and do not effectively reduce adhesive strength or allow for easy removal without tools.

Innovation Solution

A coating sheet comprising a soft synthetic resin sheet with a protective layer, a first coating layer featuring small projections to reduce adhesive strength, and a second coating layer for improved releasability, along with an adhesive layer and release paper, which can be applied to installations to prevent adhesion and facilitate easy removal without tools, while also providing electrical insulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If rubber or synthetic resin sheets with conical or pyramidal projections are used to prevent adhesion, then adhesion prevention is improved, but device complexity and aesthetic appearance worsen due to additional bands and fasteners

Engineering Contradiction:

Improveadhesion of advertising materialsVSAvoidstructural complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The invention merges the adhesion prevention function directly into the coating layer itself, eliminating the need for separate mechanical fastening components. The coating layer with projections is integrated onto the sheet material, allowing it to function both as the substrate and the adhesion-preventing surface, thus reducing device complexity while maintaining effectiveness.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention applies local quality by creating projections only on the specific surface of the coating layer that contacts advertising materials. This localized modification of surface topology provides adhesion prevention exactly where needed, while the rest of the sheet maintains its normal properties for aesthetic and structural purposes.

Inventive Principle:

Principle #3Local quality

2Object-affected harmful factors

If rubber or synthetic resin sheets with projections are used to prevent adhesion, then adhesion prevention is improved, but aesthetic appearance worsens due to exposed bands and fasteners

Engineering Contradiction:

Improveadhesion of advertising materialsVSAvoidaesthetic appearance

Core Design Contradiction:

Object-affected harmful factorsVSShape

Solution Approach 1:

The invention merges the adhesion prevention function directly into the coating layer itself, eliminating the need for separate mechanical fastening components. The coating layer with projections is integrated onto the sheet material, allowing it to function both as the substrate and the adhesion-preventing surface, thus reducing device complexity while maintaining effectiveness.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention applies local quality by creating projections only on the specific surface of the coating layer that contacts advertising materials. This localized modification of surface topology provides adhesion prevention exactly where needed, while the rest of the sheet maintains its normal properties for aesthetic and structural purposes.

Inventive Principle:

Principle #3Local quality

3Object-affected harmful factors

If conventional sheets are used to prevent adhesion, then adhesion prevention is partially improved, but ease of operation worsens as special tools like scrapers are needed for removal

Engineering Contradiction:

Improveadhesion of advertising materialsVSAvoidremoval of advertising materials

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The invention changes the surface topology parameter by introducing projections with specific geometric characteristics (height, spacing, shape) that create air gaps and reduce contact area between the sheet and advertising materials. This parameter modification enables advertising materials to be removed easily by peeling without requiring scrapers or special tools, while still providing effective adhesion prevention.

Inventive Principle:

Principle #35Parameter changes

4Object-affected harmful factors

If conventional sheets are used to prevent adhesion, then adhesion prevention is partially improved, but loss of time worsens due to continuous removal operations by dedicated teams

Engineering Contradiction:

Improveadhesion of advertising materialsVSAvoidtime for removal operations

Core Design Contradiction:

Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The invention changes the surface topology parameter by introducing projections with specific geometric characteristics (height, spacing, shape) that create air gaps and reduce contact area between the sheet and advertising materials. This parameter modification enables advertising materials to be removed easily by peeling without requiring scrapers or special tools, while still providing effective adhesion prevention.

Inventive Principle:

Principle #35Parameter changes

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 coating sheet effectively prevents adhesion of unlawful advertising materials, allows for easy removal without special tools or residual adhesives, and provides electrical insulation for safe application to electrical installations, enhancing both aesthetics and safety.

Implementation Method 1

a first coating layer which is formed on the protective layer and is provided with a plurality of small projections

Methodology Applied

Scientific EffectSurface roughness effect:

Implementation Method 2

a protective layer which is formed on one of the two surfaces of the soft sheet to protect the sheet from being discoloration and decoloration by the ultra-violet (UV) rays in the sunlight

Methodology Applied

Scientific EffectUV protection: Absorption (EM radiation)

Implementation Method 3

an adhesive layer which is formed on the opposite side of the soft sheet for attaching the soft sheet

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentUS10519346B2Coating sheet for preventing adhesion of advertising material

Publication Date: 2019.12.31 SHINDO D&TECH

AI summary

A coating sheet for preventing adhesion of advertising materials includes a soft sheet made with a synthetic resin; a protective layer formed on one of the two surfaces of the soft sheet to protect the sheet from decoloration by the ultra-violet rays in the sunlight; a first coating layer formed on the protective layer and provided with a plurality of small projections; a second coating layer formed as a film on the first coating layer; an adhesive layer formed on the opposite side of the soft sheet for attaching the soft sheet; and a release paper layer positioned underside (exposed surface of) the adhesive layer to protect the adhesive layer from being contaminated by foreign materials and losing adhesive power. The coating sheet can be attached to public or private installation, such as walls, poles, street lights, or traffic lights, to prevent adhesion of unlawful advertising materials on the installation.