Tubular Container with Segmented Outlet and Laminated Body
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Solution Overview
Problem
Existing tubular containers fail to adequately achieve non-absorbing properties for substances other than L-menthol and limit material selection by integrating the outlet and body sections through extrusion-molding, lacking flexibility in material choice and effective gas barrier properties.
Innovation Solution
A tubular container design featuring a laminated film structure with a non-absorbing innermost and outermost layer and a gas barrier intermediate layer, allowing for separate material selection for the outlet and body parts, and incorporating a transparent gas barrier layer for visual content checking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the outlet section and body section are integrated through extrusion-molding, then manufacturing simplicity is improved, but material selection flexibility deteriorates
Solution Approach 1:
The container is divided into two separate sections: the outlet section (cap) and the body section. This segmentation allows each part to be manufactured independently using different materials optimized for their specific functions, while still achieving a simple overall manufacturing process through separate extrusion-molding of each component.
2Device complexity
If a single-layer structure is used, then device complexity is reduced, but gas barrier properties deteriorate
Solution Approach 1:
The body section employs a multi-layer composite structure consisting of different material layers, each providing specific properties such as gas barrier functionality, structural strength, and flexibility. This composite approach achieves superior gas barrier properties while maintaining reasonable structural complexity through standardized layering.
3Reliability
If non-transparent materials are used, then gas barrier properties are improved, but visual content checking capability deteriorates
Solution Approach 1:
The container incorporates transparent or translucent portions in strategic locations (such as the body section or cap) while maintaining non-transparent gas barrier layers in other areas. This local quality differentiation allows visual content checking through transparent regions while preserving gas barrier properties through non-transparent layers in regions where gas protection is critical.
Data Source
AI summary
To provide a tubular container which has non-absorbing properties with respect to contents as well as gas barrier properties. A tubular container 1 comprises at least an outlet unit 20 provided with an outlet part 21 through which contents are dispensed and a shoulder part 24 that extends radially outward from the outlet part 21; and a body part 10 that is welded to the shoulder part 24 of the outlet unit 20 and stores the contents therein, wherein the body part 10 comprises at least an innermost layer formed from a non-absorbing resin on an inner side that comes into contact with the contents, an outermost layer formed on an outermost side, and an intermediate layer formed between the innermost layer and the outermost layer and including a gas barrier layer. This tubular container 1 is characterized by a structural form wherein all surfaces coming into contact with the contents are formed from a non-absorbing resin or a structural form with a transparent body part including a gas barrier layer.