Oral Nicotine Pouch Color Matching With Reduced Tobacco Solids

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Solution Overview

Problem

There is a desire for smokeless articles that resemble traditional snus in appearance but with reduced or no tobacco content, while maintaining a similar user experience.

Innovation Solution

A smokeless article comprising a pouch with a content containing a nicotinic compound, a darkening agent, and optional tobacco solids, where the darkening agent adjusts the color to resemble traditional snus, and includes fillers to maintain volume and integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If tobacco solids are reduced or eliminated in smokeless articles, then health risks and undesirable effects are minimized, but appearance and user perception similarity to traditional snus deteriorates

Engineering Contradiction:
Improveundesirable effectsVSAvoidappearance
Core Design Contradiction:
Object-affected harmful factorsVSShape

Solution Approach 1:

The patent applies color changes by incorporating a darkening agent into the filler material to alter its visual appearance. The darkening agent contains particles with a D90 particle size of 10-1000 μm that impart a dark color to the filler, making low-tobacco or tobacco-free smokeless articles visually resemble traditional tobacco-containing snus products. This resolves the contradiction by changing the color property without adding harmful tobacco solids.

Inventive Principle:
Principle #32Color changes

2Object-affected harmful factors

If tobacco solids are reduced or eliminated in smokeless articles, then health risks are minimized, but user perception similarity to traditional snus deteriorates

Engineering Contradiction:
Improveundesirable effectsVSAvoiduser perception
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The darkening agent with specific particle size characteristics (D90: 10-1000 μm) is used to modify the visual properties of the filler material. This allows the product to maintain the dark, tobacco-like appearance that users associate with traditional snus, thereby preserving user perception and acceptance while eliminating or reducing harmful tobacco solids.

Inventive Principle:
Principle #32Color changes

3Shape

If darkening agent with large particle size (D90: 10-1000 μm) is used, then appearance similarity to traditional snus is improved, but manufacturing precision requirements increase

Engineering Contradiction:
ImproveappearanceVSAvoidparticle size control
Core Design Contradiction:
ShapeVSManufacturing precision

Solution Approach 1:

The patent specifies a particular parameter range for the darkening agent particles (D90 particle size of 10-1000 μm) that optimizes the visual appearance while being feasible for manufacturing. This parameter specification balances the need for tobacco-like appearance with practical manufacturing considerations, avoiding excessively tight tolerances that would make production difficult.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4670521A1Smokeless article
Publication Date: 2025.12.31 IMPERIAL TOBACCO LTD
  • EP4670521A1 patent drawingFigure 1~2
  • EP4670521A1 patent drawingFigure 3~4
  • EP4670521A1 patent drawingFigure 5

AI summary

Disclosed herein is a smokeless article for oral consumption comprising a pouch enclosing a content, the content comprising a filler, a nicotinic compound, 0-5 wt% tobacco solids, and from 0.05 to 5 wt% of a darkening agent, as well as a smokeless article for oral consumption comprising a pouch enclosing a content, the content comprising a filler, a nicotinic compound, 0-5 wt% tobacco solids, and a darkening agent and wherein the RGB colour values of the content are within the ranges R: 0-140, G: 0-125, B: 0-100, and the G and B values are each at most 20 higher than the R value. Also provided is a method of manufacturing the smokeless article, and use of a darkening agent to darken the colour of the content in a smokeless article.