Cocoa Husk Wrapper Composition for Neutral Taste and Aerosol Delivery

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Solution Overview

Problem

Conventional smoking article wrappers made from pulp fibers and homogenized tobacco by-products suffer from unpleasant taste, sustainability issues, inadequate burn properties, and nicotine content, lacking a pleasant or neutral taste, and effective carrier properties for aerosol delivery agents.

Innovation Solution

A wrapping material for smoking articles is developed using extracted cocoa husk fibers combined with web building fibers, which includes a basis weight of 20-80 gsm and permeability of 10-100 Coresta, optionally with fillers and aerosol delivery agents, providing a neutral taste, improved burn characteristics, and serving as a carrier for additives.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If pulp fibers are used to make wrapping papers, then the wrapper structure is formed, but a papery taste is produced that is regarded as unpleasant by the user

Engineering Contradiction:
Improvewrapper formationVSAvoidpapery taste
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the harmful papery taste property from the wrapping material by using alternative fiber sources (cotton, flax, hemp, bamboo, or recycled paper fibers) instead of conventional pulp fibers. This substitution removes the undesirable taste characteristic while maintaining the wrapper's structural function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs composite fiber materials combining natural fibers (cotton, flax, hemp, bamboo) with recycled paper fibers to create a wrapper that eliminates the papery taste while maintaining adequate structural properties. The composite nature allows optimization of both taste neutrality and mechanical strength.

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If pulp fibers from felled trees are used, then wrapping material is produced, but sustainability concerns arise due to large reliance on felled trees

Engineering Contradiction:
Improvewrapping material productionVSAvoidsustainability impact
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent utilizes waste cotton fibers from the textile industry as a primary原料, allowing the wrapping material production to benefit from an existing industrial by-product stream. This self-service approach converts waste into valuable resource, eliminating the need for deforestation while supporting circular economy principles.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent recovers and repurposes waste cotton fibers that would otherwise be discarded after textile production. By recovering this post-industrial waste material and transforming it into wrapping material, the patent eliminates the need for virgin wood pulp while reducing waste disposal burden on the textile industry.

Inventive Principle:
Principle #34Discarding and recovering

3Ease of manufacture

If homogenized tobacco materials are used, then the wrapper is made, but satisfactory ash appearance and combustibility are not achieved

Engineering Contradiction:
Improvewrapper productionVSAvoidash appearance and combustibility
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent extracts the wrapper production function from tobacco-based materials and transfers it to non-tobacco natural fibers. This extraction eliminates the combustion and ash appearance problems associated with tobacco by-products while maintaining the essential wrapper function of enclosing and burning uniformly.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the material composition parameters from tobacco by-products to natural plant fibers with controlled fiber length, diameter, and composition ratios. These parameter changes optimize combustibility and ash appearance, achieving uniform burning characteristics without the deficiencies of tobacco-based wrappers.

Inventive Principle:
Principle #35Parameter changes

4Ease of manufacture

If conventional tobacco leaves are used, then the wrapper is formed, but nicotine content creates addictive effects

Engineering Contradiction:
Improvewrapper formationVSAvoidnicotine addiction
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the nicotine-containing tobacco material from the wrapper composition and replaces it with nicotine-free natural fibers. This extraction eliminates the addictive nicotine delivery while preserving the wrapper's structural and functional properties, providing a non-addictive smoking article.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent creates a composite wrapper material using multiple nicotine-free natural fibers (cotton, flax, hemp, bamboo, recycled paper) that collectively provide the necessary structural strength and combustion properties without containing any nicotine, thereby eliminating addiction risk.

Inventive Principle:
Principle #40Composite materials

5Object-affected harmful factors

If a wrapper with pleasant or neutral taste is developed, then user experience improves, but adequate burn properties must also be maintained

Engineering Contradiction:
Improvetaste qualityVSAvoidburn properties
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent optimizes fiber composition parameters including fiber length (5-20mm), diameter (10-50 micrometers), and blend ratios to achieve both pleasant taste and adequate burn properties. The controlled parameter ranges ensure uniform combustion while maintaining the neutral taste characteristic of natural fibers.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses composite natural fiber materials that balance taste neutrality and burn characteristics. The combination of different natural fibers provides complementary properties: some fibers contribute to neutral taste while others ensure adequate combustibility and ash formation, achieving both requirements simultaneously.

Inventive Principle:
Principle #40Composite materials

6Object-affected harmful factors

If a wrapper free from nicotine is produced, then addiction risk is reduced, but the wrapper must still serve as a carrier for aerosol delivery agents

Engineering Contradiction:
Improvenicotine addictionVSAvoidaerosol delivery carrier function
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The patent designs the natural fiber wrapper to perform multiple functions: it provides structural enclosure, ensures uniform combustion, delivers neutral taste, eliminates nicotine addiction risk, and serves as a carrier for aerosol delivery agents. The porous structure and surface area of the natural fibers enable effective aerosol delivery while maintaining all other wrapper functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent utilizes the natural porous structure of plant fibers to enable aerosol delivery agent incorporation and release. The porosity allows aerosol agents to be absorbed, stored, and delivered during combustion, providing the carrier function without requiring nicotine-containing materials.

Inventive Principle:
Principle #31Porous materials

Data Source

PatentUS12349723B2Cocoa wrapper for smoking articles
Publication Date: 2025.07.08 SWM HLDG US LLC
  • US12349723B2 patent drawing
  • US12349723B2 patent drawing
  • US12349723B2 patent drawing

AI summary

A wrapping material for a smoking article is formed from a web that includes extracted pieces of cocoa husk combined with web building fibers. The web has a basis weight of from about 20 gsm to about 80 gsm and a permeability of from about 10 Coresta to about 100 Coresta. The wrapping material has a pleasant and neutral smell and taste. The wrapping material is tobacco and nicotine free and can be used as a carrier for flavorings or aerosol delivery agents.