Replaceable Adhesive Bra Cup Structure for Wrinkle-Free Adhesion

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Solution Overview

Problem

Existing adhesive bras face challenges in smooth adhesion due to the high deformability of elastic molded cups and adhesive layers, leading to wrinkles and reduced adhesion, comfort issues, and potential bacterial growth when not used properly.

Innovation Solution

The adhesive-replaceable adhesive bra features a molded cup, adhesive body, and limiting body, where the limiting body shapes and limits the molded cup or adhesive body, ensuring smooth adhesion by preventing wrinkles and allowing for easy alignment, and the adhesive body is replaceable to prevent bacterial growth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the adhesive layer is manually brushed or hot melted onto the molded cup, then the adhesive layer can be applied to the molded cup, but the high deformability of both the elastic molded cup and adhesive layer causes wrinkles and incomplete adhesion, resulting in poor comfort

Engineering Contradiction:
Improveadhesive layer applicationVSAvoidadhesive layer adhesion quality
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The adhesive bra is divided into separate components: a reusable molded cup and a disposable adhesive layer. This segmentation allows each component to be optimized independently - the molded cup for comfort and shape, and the adhesive layer for strong skin adhesion, while avoiding the wrinkling problem that occurs when trying to bond two highly deformable materials together.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adhesive layer is pre-applied to the molded cup during manufacturing with precise positioning, eliminating the need for manual brushing or hot melting by the user. This preliminary action ensures proper adhesion quality before the product reaches the consumer.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the adhesive bra is stored after use with the release liner inadequately adhered or missing, then the adhesive layer may be protected, but impurities such as dust will adhere to the adhesive layer, making it difficult to clean and reducing adhesion

Engineering Contradiction:
Improveadhesive layer protectionVSAvoiddust and impurity contamination
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The adhesive layer is designed as a disposable component that is replaced after each use. This eliminates the need for cleaning and storage of the adhesive surface, as the entire adhesive layer is discarded and replaced with a fresh one, ensuring consistent adhesion performance without contamination issues.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Object-affected harmful factors

If the adhesive bra is used many times, then the adhesive layer may harbor bacteria, but replacing the adhesive layer frequently increases cost and complexity

Engineering Contradiction:
Improvebacterial contaminationVSAvoidproduct structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The product is segmented into a reusable molded cup and a disposable adhesive layer. This allows the adhesive layer to be replaced frequently to maintain hygiene without making the entire bra complex, as only the adhesive component needs replacement rather than the whole product.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adhesive layer is discarded after use and the molded cup is recovered for reuse. This approach maintains hygiene by eliminating bacterial contamination while minimizing waste and cost, as only the adhesive layer needs to be replaced rather than the entire product.

Inventive Principle:
Principle #34Discarding and recovering

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

Ensures quick and smooth adhesion without wrinkles, improves comfort, reduces operation time, and is environmentally friendly by allowing reusable components, thus enhancing user experience and health benefits.

Implementation Method 1

The adhesive body has a cup-adhesive surface and a protective surface disposed opposite to each other, and the cup-adhesive surface is configured to be adhered to the inner surface

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 2

The limiting body has an adhesive surface, and the limiting body is configured to shape and limit the molded cup or the adhesive body

Methodology Applied
Scientific EffectPhysical constraint: Physical Containment

Implementation Method 3

The molded cup is made from an elastic material, and the molded cup has an outer surface and an inner surface disposed opposite to each other

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP4659609A1Pasty having replaceable adhesive surface, and method of use
Publication Date: 2025.12.10 SHENZHEN FANG TA TECH CO LTD
  • EP4659609A1 patent drawingFigure 1~2
  • EP4659609A1 patent drawingFigure 3~4
  • EP4659609A1 patent drawingFigure 5~6

AI summary

The present disclosure relates to the technical field of underwear, and provides an adhesive-replaceable adhesive bra and a method for using same. The adhesive bra includes a molded cup, a limiting body, and an adhesive. The molded cup is made from an elastic material. The molded cup has an outer surface and an inner surface. The adhesive body has an adhesive cup-adhesive surface and a protective surface. The cup-adhesive surface is configured to be adhered to the inner surface. The limiting body has an adhesive surface, and the limiting body is configured to shape and limit the molded cup or the adhesive body. The outer surface is configured to be adhered to the adhesive surface, to shape and limit the molded cup, and the cup-adhesive surface is configured to be adhered to the inner surface. Alternatively, the protective surface is configured to be adhered to the adhesive surface, to shape and limit the adhesive body, and the inner surface is configured to be adhered to the cup-adhesive surface. With the adhesive-replaceable adhesive bra, the molded cup and the adhesive body provided in embodiments can be used repeatedly for many times, which is environmentally friendly and low in usage cost. In addition, when not in use, the adhesive body and the molded cup are packaged separately to prevent bacterial growth, thereby being more beneficial to human health.