Hairpiece Securing Device Using Adhesive Bonding

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Solution Overview

Problem

Existing hairpiece securing devices are bulky, damage hair, are not suitable for short-haired individuals, and lack inconspicuousness, with existing methods being time-consuming or unsightly.

Innovation Solution

A hair replacement system featuring a self-adhesive hair band with an adhesive surface adjacent to a recess in the securing device, where the hair is pressed against the adhesive surface and sealed by a self-adhesive hair band, providing permanent fixation without visible clamps and allowing for easy removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a hair clip is used to secure the outfit to the wearer's hair, then the outfit is fixed securely, but the hair clip is visible and the hair is damaged due to high clamping force and bending

Engineering Contradiction:

Improvesecuring effectivenessVSAvoidhair damage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical clamping system (hair clip) with a chemical bonding system (adhesive). The adhesive is applied to the inner surface of the outfit and bonds the outfit to the wearer's hair without mechanical clamping forces, thereby eliminating hair damage while maintaining securing effectiveness.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces adhesive as an intermediary substance between the outfit and the wearer's hair. This adhesive layer enables bonding without direct mechanical contact that would damage the hair, serving as a mediator that achieves secure attachment while protecting the hair from damage.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If a hair clip is used to secure the outfit, then the outfit is fixed securely, but the hair clip is visible particularly in short-haired hair replacements

Engineering Contradiction:

Improvesecuring effectivenessVSAvoidaesthetic inconspicuousness

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces the visible mechanical hair clip with an invisible adhesive bonding system. The adhesive applied to the inner surface of the outfit provides secure attachment without any visible external components, solving the aesthetic problem for short-haired replacements while maintaining securing effectiveness.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If sewing the outfit with a braided edge is used to secure the hair replacement, then the outfit is secured to the wearer's hair, but an extreme amount of time is required to carry out the process

Engineering Contradiction:

Improvesecuring effectivenessVSAvoidapplication time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the time-consuming mechanical process of sewing and braiding with a simple adhesive application process. The adhesive is applied to the inner surface of the outfit and bonds the hair replacement to the wearer's hair quickly without requiring extensive manual manipulation or sewing skills, dramatically reducing application time while maintaining securing effectiveness.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If metallic ferrules are clipped onto the pulled-through hair, then the outfit is secured to the wearer's hair, but the securing device is bulky and does not mold itself to the head of the wearer

Engineering Contradiction:

Improvesecuring effectivenessVSAvoiddevice bulkiness

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the bulky mechanical ferrule clipping system with a thin adhesive layer applied to the inner surface of the outfit. This adhesive bonding system provides secure attachment without the bulk of metallic components, allowing the outfit to mold closely to the wearer's head while maintaining securing effectiveness.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 solution provides a secure, unobtrusive, and permanent attachment of hairpieces to the wearer's hair, preventing damage and being suitable for all hair lengths, while allowing for easy removal without visible clamps.

Implementation Method 1

an adhesive surface adjacent to the recess on the outside of the flat material and a section of a self-adhesive hair band for sticking to the hair of the wearer pressed against the adhesive surface

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentEP2034859B1Hairpiece comprising securing devices

Publication Date: 2011.04.27 ARCOS DIE HAARPROFIS HANDELS GMBH

Figure 1~5

AI summary

The invention relates to a hairpiece (1) comprising a mounting (2), hair (3) which is fixed to the mounting (2), and at least one securing device (4) for securing the mounting (2) to the hair (7) of the person wearing the hairpiece (1). The securing device (4) comprises a recess (10) which is closed around the edges in a flat material (11), and means for fixing the hair (7) of the person wearing the hairpiece, said hair passing through the recess (10). The means consist of an adhesive surface (8) adjacent to the recess (10) on the outer side of the flat material (11), and a section (14) of a self-adhesive hair strip (5) for sticking to the person's hair (7) pressing onto the adhesive surface (8).