Delamination Container Squeeze Area Segmentation

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Solution Overview

Problem

Existing containers with separable laminated layers face challenges in easily separating the inner layer body from the outer layer body after the squeeze area restores to its original shape.

Innovation Solution

The container features a squeeze area with a substantially polygonal tubular shape, including three or more panel-shaped portions and corner portions, along with a circumferential step portion and recesses, which enhance the separability of the inner layer body from the outer layer body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the squeeze area is made flexible and restorable to enable contents dispensing, then the contents can be dispensed without replacement by ambient air, but the inner layer body cannot easily separate from the outer layer body after the squeeze area restores to its original shape

Engineering Contradiction:
Improveseparability of inner layer body from outer layer bodyVSAvoidseparation reliability after squeezing
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The squeeze area is divided into multiple panel-shaped portions (three or more) connected by corner portions, creating a segmented structure that facilitates easier separation between the inner and outer layer bodies after squeezing, while maintaining the flexible and restorable characteristics needed for contents dispensing

Inventive Principle:
Principle #1Segmentation

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 increases the separability of the inner layer body from the outer layer body, improving dispensing operability and ensuring easy separation during content dispensing.

Implementation Method 1

an inner layer body separably laminated on an inner surface of the outer layer body and capable of undergoing volume reduction and deformation

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the inner layer body undergoes volume reduction and deformation in conjunction with dispensing of the contents

Methodology Applied
Scientific EffectVolume reduction: Compression

Implementation Method 3

an ambient air inlet extending between the outer layer body and the inner layer body

Methodology Applied
Scientific EffectAir inlet flow: Fluid Spray

Data Source

PatentUS12264007B2Delamination container
Publication Date: 2025.04.01 YOSHINO KOGYOSHO CO LTD
  • US12264007B2 patent drawing
  • US12264007B2 patent drawing
  • US12264007B2 patent drawing

AI summary

A container with separable laminated layers includes an outer layer body, an inner layer body separably laminated on an inner surface of the outer layer body and capable of undergoing volume reduction and deformation, and an ambient air inlet extending between the outer layer body and the inner layer body. The container has a bottle shape with a tubular mouth, a shoulder that is continuous with the mouth, a trunk that is continuous with the shoulder, and a bottom that is continuous with the trunk. The trunk includes a squeeze area. The squeeze area has a substantially polygonal tubular shape with three or more panel-shaped portions, and three or more corner portions that each connect adjacent panel-shaped portions.