Carrier-Mediated Adsorbent Insertion in Cigarette Filters

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Solution Overview

Problem

Existing methods for inserting adsorbent materials into cigarette filters are inefficient, inconsistent, and messy, often using loose powders or slurries of carbonaceous materials.

Innovation Solution

A method and apparatus for inserting adsorbent materials carried by a carrier material into a filter rod, allowing for a continuous and controlled distribution of the adsorbent within the filter, using a hopper and rotating wheel arrangement to supply the carrier material, which can be in the form of pellets, capsules, or continuous structures, ensuring even dispersion and efficient insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If loose powder or slurry of carbonaceous material is used to insert adsorbent material into filter element, then the insertion process is simple, but the process is inconsistent, wasteful, and messy

Engineering Contradiction:

Improvesimplicity of insertion processVSAvoidconsistency of adsorbent material distribution

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent introduces a carrier material as an intermediary substance that delivers the adsorbent material into the filter element. The carrier material (such as cellulose acetate granules or pellets) acts as a vehicle to transport the adsorbent material uniformly throughout the filter, replacing the direct loose powder insertion method. This intermediary approach ensures consistent distribution while maintaining process simplicity.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the physical state and delivery form of the adsorbent material from loose powder/slurry to a controlled granular or pellet form carried on a carrier material. This parameter change in the physical state allows for more precise control over the insertion process, improving consistency and reducing waste while maintaining ease of manufacture.

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If loose powder or slurry of carbonaceous material is used to insert adsorbent material into filter element, then the equipment requirement is minimal, but material waste increases

Engineering Contradiction:

Improveequipment complexity for insertionVSAvoidwaste of adsorbent material

Core Design Contradiction:

Device complexityVSLoss of substance

Solution Approach 1:

The carrier material serves as a controlled delivery mechanism that prevents excessive or uneven distribution of adsorbent material. By using the carrier material as an intermediary, the system achieves better control over material placement, reducing waste while not significantly increasing equipment complexity.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The adsorbent material is pre-bound to the carrier material before insertion into the filter element. This preliminary action of combining the adsorbent material with the carrier material ensures controlled release and distribution during the insertion process, preventing material waste and improving utilization efficiency.

Inventive Principle:

Principle #10Preliminary action

3Manufacturing precision

If granules of carbonaceous material are incorporated into dalmation or cavity filter regions using traditional techniques, then the filter structure is achieved, but the process is rudimentary and messy

Engineering Contradiction:

Improvefilter structure formationVSAvoidmessiness and inefficiency of insertion process

Core Design Contradiction:

Manufacturing precisionVSObject-generated harmful factors

Solution Approach 1:

The carrier material acts as an intermediary that delivers the adsorbent material in a controlled manner to the dalmation or cavity filter regions. This approach maintains the desired filter structure while eliminating the messiness and inefficiency associated with traditional loose granule insertion methods.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the delivery form of the adsorbent material from loose granules to a controlled carrier-based system. This parameter change in the delivery mechanism reduces the harmful effects of messiness and inefficiency while maintaining the ability to form the required filter structure.

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

This approach enables a cleaner, more efficient, and consistent delivery of adsorbent materials into cigarette filters, reducing waste and improving the production process while ensuring effective smoke filtration.

Implementation Method 1

inserting an adsorbent material carried by a carrier material into a filter rod member

Methodology Applied

Scientific EffectAdsorption: Adsorption

Data Source

PatentUS8496011B2Apparatus for forming a filter component of a smoking article

Publication Date: 2013.07.30 R J REYNOLDS TOBACCO COMPANY

AI summary

An apparatus and associated method for forming a filter rod member of a smoking article, such as a cigarette, is provided. The apparatus comprises a rod-forming unit configured to form a continuous supply of a filter material into a continuous cylindrical rod member. An insertion unit is configured to insert an adsorbent material carried by a carrier material into the rod member. The method comprises forming a continuous supply of a filter material into a continuous cylindrical rod member, and inserting an adsorbent material carried by a carrier material into the rod member such that the adsorbent material is disposed within the rod member.