Lubricious Polymeric Tampon Applicator Composition
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Solution Overview
Problem
Current tampon applicators lack the necessary lubricity and ease of use, particularly for consumers experiencing vaginal dryness, and existing manufacturing processes are inefficient for producing soft, flexible, and lubricious products at high volumes.
Innovation Solution
A lubricious polymeric composition combining polymers like polyolefins and fatty acid amides, such as erucamide, is used to create tampon applicators with enhanced lubricity, softness, and flexibility, along with specific manufacturing processes to ensure efficient assembly at high speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional polymeric materials are used to manufacture tampon applicators, then manufacturing cost is low and production is simple, but the applicators lack sufficient lubricity and comfort for consumers experiencing vaginal dryness
Solution Approach 1:
The patent modifies the physical and chemical parameters of the polymeric material by incorporating specific lubricants (erucamide, oleamide, stearamide) at controlled concentrations (0.01-5% by weight). This changes the surface properties of the applicator to provide enhanced lubricity without fundamentally altering the base polymer structure, resolving the contradiction between comfort and material simplicity
Solution Approach 2:
The patent creates a composite material system combining base polymers (polyethylene, polypropylene, PET) with lubricant additives. This composite approach allows the applicator to maintain the structural integrity and manufacturing advantages of conventional polymers while adding the lubricity property needed for comfort during insertion, especially for consumers with vaginal dryness
2Ease of operation
If lubricants are added to improve slip and lubricity, then consumer comfort is enhanced, but manufacturing complexity and process modifications are required
Solution Approach 1:
The patent merges the lubricant incorporation step with the existing plastic compounding process. The lubricants are mixed with the polymer resin during the standard extrusion and molding operations, eliminating the need for separate lubrication steps or post-processing treatments. This integration resolves the contradiction by enhancing ejection ease without adding significant manufacturing complexity
Solution Approach 2:
The lubricants are incorporated into the applicator material itself, allowing the applicator to provide its own lubrication function without requiring external lubrication systems or additional components. The material self-services by providing the necessary slip properties through its inherent composition, reducing manufacturing complexity while improving ejection ease
3Productivity
If high-volume rapid manufacturing is implemented, then production efficiency is high, but the ability to incorporate lubricants and achieve desired lubricious properties is compromised
Solution Approach 1:
The lubricants are pre-mixed with the polymer resin during the compounding stage before the high-volume molding process. This preliminary incorporation ensures uniform distribution of lubricants throughout the material, allowing subsequent high-speed injection molding to produce consistent lubricious properties without compromising precision, thereby resolving the contradiction between production volume and lubricant incorporation quality
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
The lubricious tampon applicators demonstrate improved ease of insertion and ejection, enhanced lubricity, and environmental stability, while maintaining high-volume production efficiency and cost-effectiveness.
Implementation Method 1
The present disclosure provides a lubricious polymeric composition that includes a polymer and one or more lubricants. Articles formed from the lubricious polymeric composition possess enhanced softness, flexibility and lubricity.
Implementation Method 2
While various lubricants have been mentioned in the prior art as a means of improving slip, the literature does not teach specific lubricants or resins to use, the necessary levels required to improve slip
Data Source
AI summary
The present disclosure provides a lubricious polymeric composition that includes polymer and one or more lubricants. Articles formed from the lubricious polymeric composition possess enhanced softness, flexibility and lubricity. The present disclosure also provides a method for making an article formed from a lubricious polymeric composition having polymer and one or more lubricants.