Human Hair Layer Bonding Using Hot Pressed Adhesive Sheets
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Solution Overview
Problem
Current methods for producing human hair layers for aesthetic compositions are either too complex, time-consuming, or not cost-effective, and lack the necessary resistance for cutting and modeling into various artistic forms.
Innovation Solution
A process involving the use of a gluing solution composed of vinyl glue and tepid water, applied to cut, washed, and dried human hair, which is then pressed between oven paper sheets in a hot press to create layers that can be cut and shaped, allowing for the production of resistant hair layers suitable for artistic compositions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional weaving processes are used to produce resistant hair tissues, then the resistance and strength of the final product is improved, but the process complexity and time required increase significantly
Solution Approach 1:
The patent replaces complex mechanical weaving processes with a thermal bonding process. Hair layers are impregnated with thermoplastic binder and then heated to fuse the layers together, creating strong bonds without requiring traditional weaving machinery or complex mechanical interlacing operations.
Solution Approach 2:
The patent changes the physical state of the binder material through temperature variation. The binder is applied in a soft, workable state at room temperature, then the entire assembly is heated to melt and fuse the binder, creating strong adhesion between hair layers. This parameter change enables simple processing to achieve strong bonding.
2Strength
If traditional weaving processes are used to produce resistant hair tissues, then the strength of the final product is improved, but the production time increases significantly
Solution Approach 1:
The patent replaces time-consuming mechanical weaving operations with rapid thermal processing. The hair layers are quickly impregnated with binder and then subjected to brief heating cycles that melt and fuse the binder, creating strong bonds in minutes rather than the extended time required for traditional weaving.
Solution Approach 2:
The binder is applied to the hair layers in advance, in a soft and workable state, before the bonding operation. This preliminary impregnation allows the binder to be distributed evenly throughout the hair structure, so that when heating occurs, bonding happens rapidly and uniformly without requiring prolonged processing time.
3Strength
If traditional weaving processes are used to produce resistant hair tissues, then the resistance of the final product is improved, but the production cost increases
Solution Approach 1:
The patent replaces expensive specialized weaving machinery with simple, readily available equipment such as spray applicators and conventional heating devices. This substitution dramatically reduces capital equipment costs while achieving comparable or superior bonding strength through the thermoplastic binder fusion process.
Solution Approach 2:
The patent uses inexpensive thermoplastic binder materials that can be applied in simple formulations. These binders, while potentially single-use in some configurations, are low-cost materials that eliminate the need for expensive durable weaving infrastructure, reducing overall manufacturing costs despite the consumable nature of the binder.
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 process enables the quick, cost-effective production of human hair layers that are strong enough to be cut and modeled, facilitating the creation of decorative objects such as flowers, shapes, and miniature artworks, while allowing for easy storage and exhibition.
Implementation Method 1
pressing for a first time in the hot press the at least one first and one second supporting sheet with the inserted human hair
Implementation Method 2
homogeneously spraying the gluing solution on the human hair
Data Source
Figure 1
AI summary
A process is described for producing layers of human hair to be used in aesthetic compositions; such process comprises the steps of: preparing a gluing solution in a vaporizer; prearranging an amount of cut, washed and dried human hair; placing on an hot press at least one first supporting sheet; arranging the human hair on the first supporting sheet; homogeneously spraying the gluing solution onto human hair; covering the glued human hair with at least one second supporting sheet; pressing for a first time in the hot press the supporting sheets with the inserted human hair; overturning the supporting sheets with the inserted human hair; lifting the second supporting sheet and homogeneously spraying the gluing solution onto the human hair; covering the glued human hair with the first supporting sheet; pressing for a second time in the hot press the supporting sheets with the inserted human hair; resting the supporting sheets with the inserted human hair; and removing the supporting sheets, obtaining the layer of human hair.