Hygromorphic Drawing Substrate with Dynamic Geometry

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Solution Overview

Problem

Traditional drawing substrates can become repetitive and dull over time, leading to a decline in user interest, as they lack innovative features that enhance the drawing experience.

Innovation Solution

A drawing substrate comprising a hygromorphic structure with a combination of hygroexpansible and hygroinert materials, which changes geometry and color in response to water absorption, incorporating solvatochromic and mechanochromic elements to create dynamic visual effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional drawing substrates are used, then the structure is simple and easy to manufacture, but the user interest declines over time due to repetitiveness

Engineering Contradiction:
Improveuser interestVSAvoidstructure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The drawing substrate incorporates hygromorphic materials that dynamically change geometry and color in response to water absorption during drawing activities. The substrate transitions from a static surface to a dynamic system that adapts its physical properties based on user interaction, maintaining engagement through unpredictable visual and structural transformations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The substrate utilizes materials whose physical and optical parameters change in response to environmental conditions (water content). The hygromorphic layer alters its geometry, curvature, and color properties based on humidity levels, creating a drawing surface that continuously evolves its characteristics during use.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If hygromorphic materials are incorporated into the drawing substrate, then geometric and color changes are achieved, but the manufacturing complexity increases

Engineering Contradiction:
Improvegeometric and color changesVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The drawing substrate is constructed as a composite structure combining hygromorphic materials with traditional drawing surface materials. This composite approach allows the integration of specialized functional materials (for geometric and color changes) with conventional materials (for structural support and drawing functionality), balancing advanced functionality with manufacturing feasibility.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The substrate is divided into distinct functional layers: a hygromorphic layer responsible for geometric and color transformations, and a base layer providing structural stability. This segmentation allows each component to be optimized and manufactured separately, then assembled into the final product, reducing overall manufacturing complexity.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If solvatochromic and mechanochromic elements are added, then the drawing experience becomes more engaging, but the material composition becomes more complex

Engineering Contradiction:
Improvedrawing experienceVSAvoidmaterial composition
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The substrate merges solvatochromic (color change with water) and mechanochromic (color change with mechanical deformation) properties into a single integrated system. These multiple responsive mechanisms are combined within the hygromorphic material structure, allowing simultaneous geometric and color transformations in response to drawing activities, thereby enhancing user engagement without requiring separate independent systems.

Inventive Principle:
Principle #5Merging (Combining)

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 substrate provides a unique and engaging drawing experience through reversible geometric and color changes, increasing user interaction and interest by introducing a new dimension to traditional line drawings and coloring books.

Implementation Method 1

the first material may be configured to absorb more water compared to the second material

Methodology Applied
Scientific EffectWater absorption: Absorption (physical)

Implementation Method 2

the hygroexpansible material may be configured to swell

Methodology Applied
Scientific EffectSwelling: Hydrogel

Implementation Method 3

the first layer may comprise a solvatochromic colorant, in particular a hydrochromic colorant

Methodology Applied
Scientific EffectSolvatochromism: Solvation

Data Source

PatentEP4286177A1Drawing substrate
Publication Date: 2023.12.06 BIC VIOLEX SINGLE MEMBER SA
  • EP4286177A1 patent drawingFigure 1a~1b
  • EP4286177A1 patent drawingFigure 2a~2b
  • EP4286177A1 patent drawingFigure 3a~3b

AI summary

In a first aspect, the present disclosure relates to a drawing substrate, wherein the drawing substrate 100 comprises a first structure 120 attached to a second structure 110 , wherein the first structure 120 is hygromorphic.