Cold-Seal Packaging Container for Leakage-Resistant Sterile Storage

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Solution Overview

Problem

Current packaging solutions for food and medical products are often not environmentally friendly, require specialist equipment for assembly, and do not effectively maintain product separation or prevent leakage during transport, especially for multiple items or items that need to be kept sterile.

Innovation Solution

A packaging system using environmentally acceptable materials such as cardboard and cold-seal adhesives to create a sealed container with a body, gasket, and covering that can be assembled without heat or specialized machinery, providing a liquid-tight seal and allowing for easy assembly and disassembly, suitable for food, medical, and garden products.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional packaging materials (metal foil, plastics, cardboard) are used with heat-sealing or crimping methods, then sealed packaging is achieved, but environmental friendliness deteriorates and specialist equipment is required

Engineering Contradiction:

Improvesealed packagingVSAvoidenvironmental friendliness and equipment requirement

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The invention changes the sealing parameter from thermal (heat-sealing) or mechanical (crimping) to chemical (cold-seal adhesive bonding). The adhesive activates at ambient temperatures through pressure-sensitive or time-dependent mechanisms, eliminating the need for heat-sealing equipment and metal crimping tools while maintaining reliable seals.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention replaces mechanical sealing systems (heat-sealing machines, metal crimping devices) with a chemical bonding system using cold-seal adhesives. This substitution eliminates specialized equipment requirements and simplifies the manufacturing process while achieving equivalent or superior sealing reliability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If multiple separate containers are used to keep food products separate, then product separation is achieved, but convenience and portability deteriorate

Engineering Contradiction:

Improveproduct separationVSAvoidconvenience and portability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The invention merges multiple separate food containers into a single integrated packaging unit with divided compartments. Each compartment maintains product separation through internal partitions or sealed sections, while the entire assembly functions as one portable package that can be carried and stored as a single unit, eliminating the need to handle multiple separate containers.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If packaged food requires upright positioning to avoid leakage, then leakage prevention is achieved, but transport flexibility deteriorates

Engineering Contradiction:

Improveleakage preventionVSAvoidtransport orientation flexibility

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The invention uses flexible, sealable packaging containers with secure closure mechanisms that maintain liquid-tight seals regardless of orientation. The containers employ flexible materials and sealing designs (such as heat-sealed lids, snap-closures, or adhesive seals) that prevent leakage in any position, allowing flexible transport and storage orientations without compromising leakage prevention.

Inventive Principle:

Principle #30Flexible shells and thin films

4Ease of repair

If reusable packaging is used to reduce waste, then environmental friendliness improves, but cleaning and sterilization complexity increases

Engineering Contradiction:

ImprovereusabilityVSAvoidcleaning and sterilization process

Core Design Contradiction:

Ease of repairVSDevice complexity

Solution Approach 1:

The invention uses homogeneous, non-porous materials (such as smooth plastics, glass, or metal) for packaging surfaces that resist staining and contamination. These uniform surfaces allow for simple washing and sterilization processes, making reusable packaging easy to clean and maintain without complex procedures, thereby balancing reusability with ease of sanitation.

Inventive Principle:

Principle #33Homogeneity

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 offers an economically viable, environmentally friendly packaging option that is convenient, reusable, and suitable for various applications, including food and medical products, while reducing plastic use and enabling easy transport and storage of multiple items without leakage or contamination.

Implementation Method 1

a gasket made from an environmentally acceptable material comprising a cold-seal adhesive in register with the flange; a covering made from an environmentally acceptable material for the storage compartment, flange and gasket overlaying the flange and the gasket wherein the gasket, flange and covering are bound together

Methodology Applied

Scientific EffectCold-seal adhesive bonding: Adhesive

Data Source

PatentUS12077353B2Packaging container and process

Publication Date: 2024.09.03 TRI LOCKER LTD

AI summary

A packaging container for a product made from recyclable environmentally acceptable materials having a body (1) or compartment sealed by use of a gasket (6) and a cold-seal adhesive to bond a covering (7) without application of heat. The packaging container is useful in providing packaging for food products, medical products, surgical instruments and may be used to provide a sterile packaging container.