Cornered Peeling Tool for Laminated Mold Release Films

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Solution Overview

Problem

Existing mold release films formed as a film set are difficult to detach one by one due to strong adhesive forces between laminated films, complicating repeated use and maintenance.

Innovation Solution

A peeling tool with a cornered end is used to lift and detach the top layer film from the film set by positioning the corner on the film edge and pushing inward, creating a gripping point for easy removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If laminated films are adhered together by a strong adhesive agent, then the structural integrity and protective function of the film set is improved, but the ease of detaching individual films deteriorates

Engineering Contradiction:
Improveadhesive force between filmsVSAvoidease of film detachment
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The adhesive agent is applied selectively at specific locations (edges or intervals) rather than uniformly across the entire film surface. This creates local adhesion zones that maintain structural integrity while leaving other areas accessible for detachment, resolving the contradiction between strong bonding and easy separation

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The film set is designed with segmented adhesion patterns where adhesive is applied at discrete locations rather than continuously. This segmentation allows individual films to be detached at non-adhesive locations while maintaining overall structural coherence during use

Inventive Principle:
Principle #1Segmentation

2Device complexity

If a single layer protective film is used, then the simplicity and initial ease of application is improved, but the duration of useful action deteriorates due to frequent replacement requirements

Engineering Contradiction:
Improvefilm structure complexityVSAvoidservice life of protective film
Core Design Contradiction:
Device complexityVSDuration of action of stationary object

Solution Approach 1:

The protective film is divided into multiple laminated layers that can be used sequentially. When the top layer is damaged or worn, subsequent layers provide continued protection, significantly extending the overall service life without requiring complete replacement of the entire protective film system

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple protective layers are prepared in advance as a film set, with the understanding that they will be used sequentially. This preliminary preparation of multiple layers ensures extended protection duration while maintaining the simplicity of the basic film structure

Inventive Principle:
Principle #10Preliminary action

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

Facilitates easy detachment of damaged films from the mold release film, allowing for convenient reuse of the mold.

Implementation Method 1

the corner is positioned on an edge of a film set and then the corner is pushed so that a film laminated at a top layer is lifted

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

the laminated films are in a state in which the laminated films are adhered to each other by an adhesive agent

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentEP4628677A1Method for peeling film from mold release film
Publication Date: 2025.10.08 LEE HODON
  • EP4628677A1 patent drawingFigure 1
  • EP4628677A1 patent drawingFigure 2
  • EP4628677A1 patent drawingFigure 3

AI summary

The present invention relates to a method for peeling a film from a release film and relates to a method for peeling a film from a mold release film, in which a peeling tool (300) provided with a peeling end (320) having a corner formed on one side thereof is provided, and in a state where the peeling tool (300) is inclined at a predetermined angle, the corner formed at the peeling end (320) is positioned at the edge of a film set (100) and then is pushed toward the central portion of the film set (100), so that the film (120) laminated on a top layer is pushed from the edge of the film set (100) and is then lifted therefrom to form a gripping point, and by gripping the gripping point, the film (120) laminated on the top layer is detached from the film set (100).