Consumable Active-Agent Article for Remnant-Free Dryer Use

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Solution Overview

Problem

Existing dryer-added articles are not consumable after a single use, leading to waste as they leave remnants in the dryer, which creates disposal issues.

Innovation Solution

A consumable, single-use active agent-containing article that forms a lamellar structure, with a density of less than 0.80 g/cm3 and a Free Melt Flow of greater than 20%, designed for use in automatic clothes dryers and washing machines, comprising active agents and optional auxiliary ingredients.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If existing dryer-added articles are used, then fabric conditioning function is provided, but remnants remain in the dryer creating waste that must be disposed of

Engineering Contradiction:
Improvewaste materialVSAvoiddisposal requirement
Core Design Contradiction:
Loss of substanceVSEase of operation

Solution Approach 1:

The patent applies the disposable principle by designing a consumable dryer-added article that is intended for single use only. The article is structured to be completely consumed during the drying cycle, leaving no remnants requiring disposal. This is achieved through a design where the carrier material and active conditioning agents are both depleted during the process, transforming the product from a reusable or partially reusable item to a truly disposable solution that eliminates waste disposal issues.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent implements the discarding principle by ensuring the entire article is consumed and discarded after single use. The design facilitates complete consumption of both the carrier material and active agents during the drying cycle, allowing the user to simply discard the entire article after one use without needing to recover or dispose of separate components. This resolves the contradiction by making disposal as simple as discarding a single consumable item.

Inventive Principle:
Principle #34Discarding and recovering

2Loss of substance

If a consumable single-use article is designed, then waste is eliminated, but the article must be completely consumed during use

Engineering Contradiction:
Improvewaste eliminationVSAvoidcomplete consumption
Core Design Contradiction:
Loss of substanceVSReliability

Solution Approach 1:

The patent applies parameter changes by carefully controlling the density and composition of the article to ensure complete consumption. The article is designed with a density of less than 0.80 g/cm³, which allows it to be sufficiently light and porous to break down completely during the drying cycle. The composition parameters are optimized so that both the carrier material and active agents are depleted at appropriate rates, ensuring reliable complete consumption without leaving remnants.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses composite materials combining a carrier substance with fabric conditioning active agents in specific ratios and configurations. This composite structure ensures that as the carrier material is consumed during the drying process, the active agents are simultaneously depleted. The composite design creates interdependence between the consumption of different components, ensuring that one does not outlast the other, thereby guaranteeing complete consumption and waste elimination.

Inventive Principle:
Principle #40Composite materials

3Loss of substance

If the article density is reduced to less than 0.80 g/cm3, then the article becomes more consumable, but the structural integrity may be compromised

Engineering Contradiction:
ImproveconsumabilityVSAvoidstructural integrity
Core Design Contradiction:
Loss of substanceVSStrength

Solution Approach 1:

The patent applies porous materials by designing the article with a density of less than 0.80 g/cm³, which inherently creates a porous structure. This porosity allows the article to be easily consumed during the drying cycle while maintaining sufficient structural integrity through the porous network. The pores allow moisture and heat penetration that facilitates consumption, while the porous framework provides the necessary strength to maintain the article's form until consumption begins.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent employs flexible shell and thin film principles by creating an article with low density that can flex and break down during use. The thin, flexible structure allows the article to adapt to the drying environment and be consumed more easily, while the distributed flexibility throughout the structure maintains overall integrity until consumption is initiated. This approach balances consumability with structural adequacy for handling and use.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentUS10975339B2Active agent-containing articles
Publication Date: 2021.04.13 PROCTER & GAMBLE CO
  • US10975339B2 patent drawing
  • US10975339B2 patent drawing
  • US10975339B2 patent drawing

AI summary

Active agent-containing articles, for example dryer-added articles and/or washing machine-added articles and/or hair care articles, and more particularly to consumable, single use, water-insoluble articles containing one or more active agents and optionally, one or more auxiliary ingredients, methods for making same, and methods for using same are provided.