Roll Membrane Assembly Lamination for Distortion-Free Processing

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Solution Overview

Problem

Existing methods for producing membrane assemblies as roll goods lack sufficient stability during processing, leading to potential distortion and inefficiencies.

Innovation Solution

A method involving the use of a first material composite with contour cuts introduced into a frame material without severing a protective film, followed by delamination of the protective film after transfer to a vacuum transport device, and subsequent lamination with a closed carrier web to stabilize the membrane assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If contour cuts are introduced into frame material without severing protective film, then manufacturing precision is improved, but device complexity increases

Engineering Contradiction:
Improvestability of membrane assembly during processingVSAvoidcomplexity of processing steps
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The protective film is left intact during contour cutting to provide preliminary stabilization of the frame material. This preliminary action prevents distortion during subsequent processing steps, and the film is removed only when no longer needed, maintaining stability throughout the manufacturing process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The protective film acts as an intermediary element that temporarily supports the frame material during processing. It mediates between the cutting process and the final product, providing the necessary stability during manufacturing and then being removed to reveal the finished component.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If protective film is delaminated after transfer to vacuum transport device, then productivity is improved, but manufacturing precision may worsen

Engineering Contradiction:
Improveefficiency of production processVSAvoidstability of membrane assembly
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The protective film is removed at a specific periodic point in the manufacturing process - after transfer to the vacuum transport device. This timed removal optimizes productivity by maintaining stability only when needed during critical processing steps, then eliminating the film to prevent interference with subsequent operations.

Inventive Principle:
Principle #19Periodic action

3Stability of the object's composition

If membrane assembly is laminated with closed carrier web, then stability is improved, but loss of substance increases

Engineering Contradiction:
Improvestability of membrane assemblyVSAvoidmaterial usage
Core Design Contradiction:
Stability of the object's compositionVSLoss of substance

Solution Approach 1:

A closed carrier web in the form of a flexible film is used to laminate the membrane assembly. This thin film provides comprehensive stability and support across the entire assembly surface, preventing distortion during handling and processing while using minimal material compared to rigid support structures.

Inventive Principle:
Principle #30Flexible shells and thin films

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

Enhances the stability of membrane assemblies during processing, allowing for efficient production and handling as roll goods, reducing material costs and enabling further processing without distortion.

Implementation Method 1

transfer of the first material composite to a vacuum transport device

Methodology Applied
Scientific EffectVacuum suction: Vacuum

Implementation Method 2

delamination of the protective film with the punching residues from the first frame material takes place

Methodology Applied
Scientific EffectDelamination:

Data Source

PatentEP4423825B1Method and device for producing membrane assemblies
Publication Date: 2025.07.16 OPTIMA LIFE SCI
  • EP4423825B1 patent drawingFigure 1~3
  • EP4423825B1 patent drawingFigure 2
  • EP4423825B1 patent drawingFigure 4~6

AI summary

The invention relates to a method and a device for producing membrane assemblies in the form of rolls, comprising: providing a first material composite (111) in the form of a roll, having a first frame material (110) and a protective film (112), wherein contour cuts (114) separating the first frame material (110) are introduced into the frame material (110) from a side of the material composite (111) opposite the protective film (112), forming punching residues (116), and wherein the contour cuts (114) are introduced without separating the protective film (112); and forming the membrane assembly in the form of rolls, wherein: membrane blanks (100) are laminated with the first frame material (110); the first material composite (111) is transferred to a vacuum transport device (20, 21); during or after transfer of the first material composite (111) to the vacuum transport device (20, 21), delamination of the protective film (112) with the punching residues (116) from the first frame material (110) takes place; and before or when leaving the vacuum transport device (20, 21), lamination of the membrane assembly with a closed support web (13) takes place.