Structured Surface Carrier Material for Plaster-Like Interior Finishes

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Solution Overview

Problem

Existing methods for creating a structured plaster-like surface on interior building surfaces are either expensive, require skilled workmanship, and result in a random appearance, unlike the natural look of structured plaster.

Innovation Solution

A method using a carrier material with a surface structure, applied like wallpaper, where the graining is bound with a low-viscosity binder that dissolves upon moisture, allowing the graining to be aligned and creating a plaster-like appearance, which can be achieved by using natural rocks or perlite, and optionally additives like methyl cellulose or dispersible polymer powders.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If structured plastering is performed manually with thorny boards to create random appearance, then aesthetic quality is improved, but labor cost and skill requirement increase significantly

Engineering Contradiction:
Improvesurface structure appearanceVSAvoidapplication complexity
Core Design Contradiction:
ShapeVSEase of manufacture

Solution Approach 1:

The surface structure is pre-formed on the carrier material before application to the building surface. The carrier material is provided with a surface structure that resembles structured plaster, allowing it to be manufactured in advance with consistent quality and then simply applied to the building surface like wallpaper.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention creates a copy of the desired structured plaster appearance on the carrier material. Instead of manually creating the structure on-site, the carrier material is pre-formed to replicate the aesthetic qualities of structured plaster, enabling easy application without requiring skilled workmanship.

Inventive Principle:
Principle #26Copying

2Ease of operation

If carrier material with surface structure is applied like wallpaper, then application ease is improved, but achieving natural plaster appearance becomes difficult

Engineering Contradiction:
Improveapplication simplicityVSAvoidplaster-like appearance
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The carrier material is pre-formed with a surface structure that mimics structured plaster before being applied to the building surface. This preliminary structuring allows the material to be applied easily like wallpaper while maintaining the desired aesthetic appearance.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The surface structure on the carrier material is designed with specific parameters (grain size, texture, pattern) that change to match the appearance of structured plaster. The carrier material can be manufactured with varying surface characteristics to achieve different plaster-like effects.

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If graining is bound with strong binder, then structural stability is improved, but graining cannot be aligned properly after application

Engineering Contradiction:
Improvegraining retentionVSAvoidgraining alignment
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The binder is designed to change its properties dynamically - initially providing weak binding that allows graining alignment, then strengthening to provide stable retention. The binder may start with low viscosity for easy alignment, then cure or set to provide strong retention of the aligned graining structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The binding process occurs in stages or periods - first allowing free alignment of graining, then progressively increasing binding strength to lock in the aligned structure. This periodic action enables both alignment and retention requirements to be met at different times in the application process.

Inventive Principle:
Principle #19Periodic 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

Enables a reproducible, cost-effective, and aesthetically pleasing plaster-like surface that can be easily applied by a layperson, mimicking the natural appearance of structured plaster with consistent quality.

Implementation Method 1

the graining is bound with a low-viscosity binder that dissolves upon moisture

Methodology Applied
Scientific EffectDissolution: Solvation

Data Source

PatentEP3867443B1Method for applying a structured surface to a building surface and corresponding covering element
Publication Date: 2023.06.07 KNAUF GIPS KG
  • EP3867443B1 patent drawingFigure 1a~1b
  • EP3867443B1 patent drawingFigure 2a~2b
  • EP3867443B1 patent drawingFigure 3a~3b

AI summary

The invention pertains to a method for applying a structured surface to a building surface, particularly for the interior design of a room, wherein a carrier material is provided with a surface structure and the carrier material with this surface structure is applied to the building surface.