Adhesive Underwire Casing for Brassiere Comfort
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Solution Overview
Problem
Conventional underwire casings in brassieres often cause discomfort due to stitching, which can lead to irritation and limited flexibility, and may experience issues like underwire poke-through and inconsistent support due to excessive or insufficient play in the casing.
Innovation Solution
The use of adhesive attachment for under-bust supports, including underwire casings made of low-elongation materials, directly to the body portion of the brassiere without seams, providing a cushioning surface and controlled underwire positioning for improved comfort and fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stitching is used to attach underwire casings to the brassiere body portion, then mechanical strength and attachment reliability are improved, but wearer comfort deteriorates due to stitching irritation and limited flexibility
Solution Approach 1:
The harmful stitching elements are completely removed from the underwire casing attachment process. The patent replaces traditional stitching with adhesive bonding, extracting the irritating mechanical penetration from the system while maintaining attachment functionality through chemical bonding between the adhesive layer and both the underwire casing and body portion.
Solution Approach 2:
An adhesive layer is introduced as an intermediary substance between the underwire casing and the brassiere body portion. This adhesive mediator provides strong bonding without the harmful effects of stitching, allowing flexible attachment that moves with the wearer's body while maintaining secure connection.
2Strength
If conventional stitching is used to attach underwire casings, then attachment strength is improved, but flexibility and adaptability to body movement deteriorate
Solution Approach 1:
The patent changes the fundamental bonding parameter from mechanical (stitching) to chemical (adhesive bonding). This parameter change allows the attachment to maintain strength through adhesive chemistry while simultaneously providing flexibility as the adhesive layer can deform with body movement, unlike rigid stitching threads.
3Object-affected harmful factors
If underwire casing has excessive play, then comfort is improved, but support consistency deteriorates due to underwire poke-through and inconsistent positioning
Solution Approach 1:
The patent applies different qualities to different parts of the underwire casing system. The adhesive attachment provides secure local bonding at the attachment points to the body portion, while the underwire casing itself maintains appropriate play for comfort. This local quality differentiation allows simultaneous achievement of comfort and support consistency.
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 solution enhances wearer comfort by eliminating stitching irritation, allowing greater flexibility and a better fit, while reducing the risk of underwire poke-through and ensuring consistent support by using adhesives like reactive adhesives, heat-set adhesives, or thermoplastics to attach underwire casings with a maximum elongation of less than 5%, ensuring a secure and comfortable fit.
Implementation Method 1
an under-bust support adhered to the body portion adjacent to a lower periphery of the pair of breast cups
Data Source
AI summary
A brassiere includes a body portion configured to at least partially encircle a wearer of the brassiere. The body portion includes a torso band configured to at least partially encircle a wearer of the brassiere, and a pair of breast cups including a first breast cup and a second breast cup. The pair of breast cups are configured to support breasts of the wearer. The brassiere further includes an under-bust support adhered to the body portion adjacent to a lower periphery of the pair of breast cups.