Perfumed Warming Tool Assembly Without Adhesive-Fragrance Overlap
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Solution Overview
Problem
Existing manufacturing methods for warming tools with perfumes face issues such as contamination of manufacturing apparatus, inefficient production due to perfume adherence, and compromised heat generating performance or user discomfort, which were not adequately addressed in previous technologies.
Innovation Solution
A manufacturing method for warming tools involving a configuration where a heat generating element is sandwiched between a topsheet and a backsheet, with perfume applied to the backsheet, and adhesive regions strategically placed to avoid overlap with perfume areas, ensuring effective joining and efficient fragrance emission while maintaining heat performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If perfume is added to the manufacturing apparatus, then fragrance emission is improved, but apparatus contamination occurs and production efficiency decreases
Solution Approach 1:
The manufacturing apparatus is divided into separate functional zones: a perfume application unit that applies perfume to the backsheet, and a heat generating element assembly unit that assembles the heating component. This segmentation prevents perfume from contaminating the heat generating element assembly process, allowing continuous production without cleaning interruptions.
Solution Approach 2:
The backsheet serves as an intermediary carrier that receives perfume application. By applying perfume to the backsheet rather than directly to the heat generating element or apparatus surfaces, the perfume is contained within the final product structure, preventing apparatus contamination while ensuring fragrance emission.
2Object-generated harmful factors
If perfume is applied to the backsheet, then fragrance emission is enhanced, but heat generating performance may be compromised
Solution Approach 1:
The backsheet is designed with differentiated regions: a perfume application region that receives fragrance, and a heat generating element assembly region that maintains thermal properties. This local differentiation allows the backsheet to simultaneously serve as a fragrance carrier and a heat transmission medium without compromising either function.
3Ease of manufacture
If adhesive and perfume regions overlap, then joining is simplified, but fragrance emission is reduced and user comfort is compromised
Solution Approach 1:
The backsheet is divided into distinct functional zones: an adhesive application region for bonding the heat generating element, and a perfume application region for fragrance emission. By segmenting these functions spatially, the design ensures that adhesive and perfume do not overlap, maintaining both joining effectiveness and fragrance emission while preventing user discomfort.
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
This configuration prevents apparatus contamination, enhances production efficiency, maintains heat generating performance, and improves user comfort by ensuring adequate fragrance emission and fit to the heating target.
Implementation Method 1
a perfume and an adhesive are arranged between the second sheet and the backsheet, the adhesive bonding the second sheet and the backsheet to each other
Implementation Method 2
a heat generating portion that generates heat due to oxidation
Data Source
AI summary
The present invention relates to a warming tool (1) in which a heat generating element (3) is held between a topsheet (5) that faces a heating target and a backsheet (6) that is located on a side away from the heating target, and a method for manufacturing the same. The heat generating element (3) has a first sheet (3f) arranged opposing the topsheet (5), a second sheet (3g) arranged opposing the backsheet (6), and a heat generating portion (3a) sandwiched between the first sheet (3f) and the second sheet (3g). In the warming tool (1), a perfume (8) and an adhesive (7) are arranged between the second sheet (3g) and the backsheet (6), and a region in which the adhesive (7) is arranged and a region in which the perfume (8) is not arranged overlap each other in a plan view. In the manufacturing method, the perfume is added to a surface of the second sheet (3g) that is planned to oppose the backsheet (6), or to a surface of the backsheet (6) that is planned to oppose the heat generating element (3), and the heat generating element (3) is held such that the backsheet (6) and the second sheet (3g) oppose each other.