Selective Lipid Coating for Viscous Container Release

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Solution Overview

Problem

Existing containers for viscous products face challenges in efficient product release and stability, with existing coatings often leading to residual product being left behind and affecting the appearance or stability of the product during shipment.

Innovation Solution

A container with a selective coating applied to a portion of the inner surface, specifically 70-90% of the side wall, using a saturated and colorless lipid composition that maintains product stability and enhances evacuation efficiency at both room and refrigeration temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the entire inner surface of the container is coated with a release coating or surface treatment, then product release is improved, but product stability deteriorates due to oiling-off or overrun collapse

Engineering Contradiction:
Improveproduct releaseVSAvoidproduct stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent applies release coating only to specific portions of the container inner surface (such as the bottom and lower sidewall) rather than the entire surface. This localized application provides release properties where needed while leaving upper portions uncoated to maintain product stability and prevent oiling-off during shipment.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If soybean oil or olive oil is used as release coating on transparent container, then product release is improved, but visual appearance deteriorates due to color change

Engineering Contradiction:
Improveproduct releaseVSAvoidvisual appearance
Core Design Contradiction:
Ease of operationVSIllumination intensity

Solution Approach 1:

The patent changes the chemical composition parameters of the release coating by using saturated fats (such as hydrogenated vegetable oils, coconut oil, or palm kernel oil) instead of unsaturated oils like soybean or olive oil. These saturated fats remain colorless and do not impart yellow or green tints to the product, thereby maintaining visual appearance while providing release properties.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If release coating is applied to entire inner surface, then product evacuation is improved, but manufacturing cost increases

Engineering Contradiction:
Improveproduct evacuationVSAvoidmanufacturing cost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent reduces manufacturing cost by applying release coating only to specific portions of the container (such as 50-80% of the inner surface area, prioritizing the bottom and lower sidewall regions) rather than the entire surface. This selective application uses less coating material and reduces processing time while still achieving effective product evacuation.

Inventive Principle:
Principle #3Local quality

4Ease of operation

If unsaturated fatty acid oils are used as coating, then initial release properties are good, but oxidation occurs over time causing rancidity

Engineering Contradiction:
Improverelease propertiesVSAvoidoxidation stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent changes the chemical structure of the coating material by using saturated fats (with saturated fatty acid content of at least 50%, preferably at least 80%) instead of unsaturated oils. Saturated fats are chemically more stable and resistant to oxidation, preventing rancidity while maintaining release properties over extended storage periods.

Inventive Principle:
Principle #35Parameter changes

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 achieves greater than 95% product evacuation with minimal oiling-off or overrun collapse, maintaining product stability and appearance, even when the container is inverted, while being cost-effective and visually unobtrusive.

Implementation Method 1

The container has a coating selected and applied in an amount effective to maintain product stability and provide increased evacuation of a viscous material from the container

Methodology Applied
Scientific EffectSurface energy modification: Surface Tension

Implementation Method 2

a coating selected and applied in an amount effective to maintain product stability and provide increased evacuation of a viscous material from the container

Methodology Applied
Scientific EffectAdsorption: Adsorption

Data Source

PatentUS7877968B2Method for forming a container with improved release properties
Publication Date: 2011.02.01 KRAFT FOODS GROUP BRANDS LLC
  • US7877968B2 patent drawing
  • US7877968B2 patent drawing
  • US7877968B2 patent drawing

AI summary

A method of forming a container that has improved release properties for a viscous material configured to minimize residual material remaining in the container upon normal use thereof and also generally maintains the physical stability of a material in the container. The method includes applying a coating to a portion of the inner surfaces of a container in an amount effective to provide the improved release properties.