Cellulosic Fiber Tampon Wrapper with Sealing Agent

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The existing packaging for tampons, typically made from petroleum-derived plastics, is not environmentally friendly and lacks alternatives that reduce plastic usage without compromising packaging performance.

Innovation Solution

A wrapper for tampons comprising a layer of cellulosic fibers, such as paper, with a basis weight between 15 gsm and 90 gsm, combined with a layer of sealing agent, which can be arranged on or adjacent to the cellulosic fiber layer, to provide a robust and flexible packaging solution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If petroleum-derived plastic films are used for wrappers, then the wrapper has flexibility and hydrophobicity, but the environmental impact increases

Engineering Contradiction:

Improveenvironmental impactVSAvoidpackaging performance

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent applies composite materials by combining cellulosic fiber layers with hydrophobic coating layers and sealing agent layers. This creates a multi-layer structure that integrates the environmental benefits of cellulosic materials with the functional properties of hydrophobic and sealing materials, resolving the contradiction between environmental impact and packaging performance

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent changes the material parameters by specifying a basis weight range of 15-90 gsm for the cellulosic fiber layer and controlling the thickness of hydrophobic and sealing layers. These parameter optimizations ensure the wrapper achieves sufficient mechanical strength and barrier properties while maintaining environmental friendliness

Inventive Principle:

Principle #35Parameter changes

2Strength

If the basis weight of cellulosic fiber layer is increased, then the wrapper becomes more robust, but the flexibility decreases

Engineering Contradiction:

Improvewrapper robustnessVSAvoidflexibility

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The patent optimizes the basis weight parameter of the cellulosic fiber layer within the specific range of 15-90 gsm. This parameter optimization balances the competing requirements of wrapper robustness and flexibility, ensuring the packaging is strong enough to contain the tampon yet flexible enough for easy folding and application

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250152434A1Wrapper for absorbent article

Publication Date: 2025.05.15 ONTEX GRP NV

AI summary

The invention pertains to wrapper (22) for a tampon (10), said wrapper comprising a layer consisting essentially of cellulosic fibers (33), a layer of sealing agent (34) arranged onto the layer of cellulosic fibers (33) wherein the layer consisting essentially of cellulosic fibers (33) comprises a basis weight comprised between 15 gsm and 90 gsm. The invention also relates to an assembly comprising a tampon (10) and such wrapper (22).