Heating Element Composition for Uniform Eye Mask Heat
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Solution Overview
Problem
Existing eye mask packs fail to provide uniform and controlled heat for eye relief due to issues with temperature regulation, shape adaptation to curved surfaces, oxidation, and reliance on nitrogen-filled chambers, leading to safety concerns and maintenance challenges.
Innovation Solution
A heating element composition comprising iron powder, carbon powder, loess powder, pulp powder, and a high adsorptive resin, formulated to generate heat uniformly and maintain strength in a powder form, allowing for precise temperature control and long preservation, while eliminating the need for nitrogen-filled chambers through a vacuum packaging process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heating patch is exposed to air during manufacturing, then the heating reaction starts immediately, but the heating function is lost before use
Solution Approach 1:
The patent extracts the oxygen required for the heating reaction from the manufacturing environment by using a nitrogen-filled chamber, separating the oxygen supply step from the manufacturing process. This allows the heating patch to be manufactured without premature oxidation while maintaining the heating function for later use.
Solution Approach 2:
The patent creates an inert atmosphere using nitrogen gas to prevent oxidation of the heating patch during manufacturing. The nitrogen-filled chamber provides an oxygen-free environment that preserves the heating function until the product is ready for use, when oxygen is intentionally introduced.
2Reliability
If nitrogen-filled chambers are used to prevent oxidation, then the heating function is preserved, but the device complexity and maintenance burden increase
Solution Approach 1:
The patent employs a disposable aluminum foil seal that is applied to the heating patch after the heating reaction is activated. This simple, low-cost component replaces complex nitrogen-filled chambers and oxygen sensors, achieving oxidation prevention through a straightforward sealing mechanism that eliminates the need for expensive manufacturing equipment.
3Stability of the object's composition
If the heating patch is made rigid to maintain shape, then the structure is stable, but it cannot conform to curved surfaces like the face
Solution Approach 1:
The patent transforms the heating patch from a rigid structure to a dynamic, flexible form by using a slurry composition that can adapt its shape. The paste-like heating material can conform to curved surfaces such as the face while maintaining structural integrity through the fibrous network formed by pulp and polymer materials, allowing both adaptability and stability.
4Speed
If the heating reaction occurs rapidly, then heat is generated quickly, but the temperature becomes uncontrolled and may cause burns
Solution Approach 1:
The patent applies local quality control by distributing the heating reaction throughout the entire heating patch area using a uniform slurry composition. The iron powder, carbon powder, and catalyst are evenly dispersed to ensure consistent heat generation across all regions, preventing localized overheating and burn risks while maintaining overall heating speed.
Solution Approach 2:
The patent controls the heating temperature by adjusting the composition parameters of the slurry, including the ratio of iron powder to carbon powder, the type and amount of catalyst, and the viscosity of the binding agents. These parameter changes allow optimization of both heating speed and temperature control to prevent burns.
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 ensures consistent heat generation, prolonged preservation, and safe, effective eye relief without nitrogen, enabling the eye mask pack to conform to curved surfaces and reducing the risk of accidents and maintenance issues.
Implementation Method 1
The iron powder generates heat by reacting to atmospheric oxygen as shown in Reaction Formula (1) below: 2Fe+3O2→Fe2O3+heat
Implementation Method 2
A heating element composition, and method and device of manufacturing eye mask pack... show that a heating temperature is regular, heat is generated uniformly
Data Source
AI summary
The present invention relates to a heating element composition, and a method of manufacturing an eye mask pack, which shows that a heating temperature is regular, and heat is uniformly generated, a heating pack is able to be worn in a state of coming into close contact even with a curved surface, a preservation period is long, and the heating temperature and time for which heat is generated can be adjusted minutely. Also, the present invention relates to a device of manufacturing an eye mask pack which is capable of manufacturing self-heating packs rapidly even without the use of nitrogen.