Blow-Molded Plastic Container With Filler-Induced Surface Texture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing plastic containers with improved slipping properties require further enhancement, as current methods using lubricants are insufficient.
Innovation Solution
A blow-molded plastic container with an innermost layer composed of a resin composition containing a base resin and filler particles, featuring concave and convex shapes on its inner surface to reduce friction and enhance slipping properties, along with a liquid repellent agent applied to the surface for additional non-adhesiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a lubricant is added to the base resin to improve slipping property, then the slipping property is improved, but the manufacturing complexity increases and the lubricant may affect other properties
Solution Approach 1:
The patent extracts the slipping function from the bulk resin material and concentrates it at the surface through filler particles. The filler particles are selectively placed in the innermost layer to provide concave-convex structures that reduce friction, while the base resin maintains its original properties without added lubricants.
Solution Approach 2:
The patent applies local quality by concentrating the slipping function at the inner surface where it is most needed. The filler particles are specifically positioned in the innermost layer to create concave-convex structures, while other layers maintain uniform composition. This localized approach improves slipping property without affecting overall manufacturing complexity.
2Ease of operation
If filler particles are added to form concave and convex shapes on the inner surface, then the slipping property is improved through reduced friction, but the manufacturing precision requirements increase
Solution Approach 1:
The filler particles serve dual functions: they provide the concave-convex surface structures that reduce friction, and they automatically define the surface topology during blow molding. The particles self-arrange to create the desired surface pattern without requiring additional processing steps or precision control mechanisms.
Solution Approach 2:
The patent controls the surface shape by adjusting parameters of the filler particles themselves - their size distribution, shape, and concentration in the innermost layer. By optimizing these particle parameters, the concave-convex structures form naturally during blow molding without requiring precise control of molding process parameters.
3Ease of operation
If the innermost layer thickness is increased to better accommodate filler particles, then the slipping property is improved, but the container volume and material usage increase
Solution Approach 1:
The patent applies partial action by placing filler particles only in the innermost layer where they are most effective for reducing friction, rather than distributing them throughout the entire container wall. This localized placement achieves the slipping property improvement with minimal material usage and minimal increase in overall container volume.
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 container achieves improved slipping properties by reducing friction between the inner surface and contents, with the concave and convex shapes and liquid repellent agent effectively preventing adhesion, enhancing the container's functionality for viscous substances.
Implementation Method 1
since the concave and convex shapes are provided on the inner surface of the innermost layer, the friction between the inner surface of the innermost layer and the contents is reduced
Implementation Method 2
a liquid repellent agent adheres to a surface of the concave and convex shapes
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention provides a plastic container with excellent slipping property for contents. According to the present invention, provided is a plastic container for storing contents, wherein the plastic container is a blow molded body, an innermost layer in contact with the contents is formed of a resin composition containing a base resin and filler particles, and an inner surface of the innermost layer is provided with concave and convex shapes due to presence of the filler particles.