Reclosable Composite Container for Humidity Protection of Single Doses

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Solution Overview

Problem

Existing single-dose articles for washing machines and dishwashers face issues with humidity exposure leading to adhesion and film failure during transport and storage, with current plastic and paper-based containers offering inadequate protection and sustainability concerns.

Innovation Solution

A reclosable flexible container made from a multilayer composite sheet comprising a paper layer, compostable adhesive, and biodegradable plastic with a metallized coating, providing humidity resistance and recyclability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If plastic containers are used to protect against humidity, then protection effectiveness is improved, but sustainability deteriorates

Engineering Contradiction:
Improveprotection effectivenessVSAvoidsustainability impact
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies composite materials by combining a paper-based outer layer with a biodegradable plastic inner layer having metallized coating. This multilayer composite structure integrates the sustainability advantages of paper with the humidity protection capabilities of biodegradable plastic, resolving the contradiction between protection effectiveness and sustainability impact.

Inventive Principle:
Principle #40Composite materials

2Object-generated harmful factors

If paper-based containers are used for sustainability, then recyclability is improved, but humidity protection deteriorates

Engineering Contradiction:
ImproverecyclabilityVSAvoidhumidity protection
Core Design Contradiction:
Object-generated harmful factorsVSReliability

Solution Approach 1:

The patent uses composite materials with a paper-based outer layer for recyclability and a biodegradable plastic inner layer with metallized coating for humidity protection. This composite structure allows both sustainability and protection requirements to be satisfied simultaneously.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent employs flexible shells and thin films by using a biodegradable plastic inner layer with metallized coating that provides humidity barrier properties while maintaining flexibility. This thin film structure enables effective humidity protection without compromising the sustainability benefits of the paper-based outer layer.

Inventive Principle:
Principle #30Flexible shells and thin films

3Object-generated harmful factors

If existing packaging sheets are used, then recyclability is improved, but long-term storage protection deteriorates

Engineering Contradiction:
ImproverecyclabilityVSAvoidstorage protection duration
Core Design Contradiction:
Object-generated harmful factorsVSDuration of action of stationary object

Solution Approach 1:

The patent applies composite materials with a paper-based outer layer and biodegradable plastic inner layer with metallized coating, providing enhanced long-term storage protection while maintaining recyclability. The metallized coating specifically enhances durability and protection over extended periods.

Inventive Principle:
Principle #40Composite materials

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 ensures long-term protection against humidity without adhesion or film failure, maintaining product integrity and sustainability by being recyclable with paper, comparable to plastic containers.

Implementation Method 1

a inner layer (26) of biodegradable plastic material with a metallized coating (28)

Methodology Applied
Scientific EffectMetallized coating: Coatings

Data Source

PatentUS12404076B2Consumer product, reclosable flexible container and multi-layer composite sheet
Publication Date: 2025.09.02 FAMECCANICA DATA SPA
  • US12404076B2 patent drawing

AI summary

A consumer product including at least one water-soluble single-dose article and a reclosable flexible container formed by a multilayer composite sheet including a layer of paper, a layer of compostable adhesive, and a layer of biodegradable plastic material having a metallized coating.