Preform Covering Layer for 3D Decorative Neck Ring Design
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Solution Overview
Problem
Conventional synthetic resin containers with labels lack three-dimensional design capabilities, making it difficult to differentiate them through decoration.
Innovation Solution
A preform for manufacturing synthetic resin containers is designed with a covering layer that forms a decorative layer with an uneven shape during blow molding, where the decorative layer covers the neck ring and can be easily peeled off by reaching its peripheral end edge, allowing for a three-dimensional design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a label is attached to the container for decoration, then the container can be differentiated from other products, but only flat design is given and three-dimensional design features cannot be expressed
Solution Approach 1:
The decorative layer is integrated directly into the container body structure during blow molding, merging the decoration function with the container structure. This eliminates the need for separate labels while achieving three-dimensional decorative effects through the molded uneven shapes on the container surface.
Solution Approach 2:
The invention transitions from two-dimensional flat label design to three-dimensional decorative design by forming uneven shapes on the container surface during blow molding. The decorative layer incorporates raised patterns, textures, and contours that create visual and tactile depth, allowing design features to be expressed in multiple dimensions.
2Shape
If a decorative layer is formed on the container surface, then three-dimensional design is achieved, but the decorative layer becomes difficult to separate from the container main body
Solution Approach 1:
The container is divided into two distinct segments: the container main body and the decorative layer. The decorative layer is formed as a separate covering layer during blow molding, creating a modular structure where the decorative portion can be independently removed from the functional container body.
Solution Approach 2:
The decorative layer is pre-formed with separation features during the blow molding process, including a distal end that reaches the peripheral end edge of the neck ring. This preliminary configuration of the decorative layer's geometry facilitates easy manual peeling and separation after the container is used, without requiring additional tools or complex removal procedures.
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
The solution enables the creation of synthetic resin containers with a three-dimensional design that can be easily separated from the container main body during disposal, enhancing designability and ease of separation.
Implementation Method 1
a preform for manufacturing a synthetic resin container by blow molding
Data Source
AI summary
Provided are a preform for manufacturing a synthetic resin container, in which a decorative layer (60) having three-dimensional design different from the conventional one is formed on the surface of a container main body (10a), and a synthetic resin container. In a preform (1) including a preform main body (1a) of a bottomed cylindrical shape that is opened to have a mouth portion (2) on one end side thereof, and a covering layer (6) configured to cover the preform main body (1a) except for a part thereof on a mouth portion (2) side, and a container (10) obtained by subjecting the preform to blow molding, a distal end side of the covering layer (6) (decorative layer (60)) is formed so as to reach a peripheral end edge of a neck ring (22) while covering a lower surface of the neck ring (22) that is provided on a lower end side of the mouth portion (2) and protrudes annularly along a circumferential direction.