Fragranced Plastic Urinal Screen High Loading
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Solution Overview
Problem
Existing air freshening articles, such as urinal screens, have limited fragrance loading and efficiency in masking or suppressing undesirable odors, leading to shorter deodorizing periods and reduced fragrance release.
Innovation Solution
A deodorizing article formed from a fragranced plastic with a higher fragrance loading (at least 5% by weight) and a low melting point plastic, allowing for efficient fragrance release and incorporation of active ingredients, along with a method of pre-loading fragrance into the plastic before molding to enhance fragrance retention and release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If fragrance material is loaded into plastic to produce fragranced plastic, then fragrance release capability is improved, but manufacturing process complexity increases
Solution Approach 1:
The fragrance material is pre-loaded into the plastic material before molding to create the air freshening article. This preliminary action of impregnating the plastic with fragrance prior to molding allows the fragrance to be uniformly distributed throughout the final product, achieving high fragrance loading (at least 5% by weight) while maintaining a relatively simple single-step molding manufacturing process.
2Duration of action of moving object
If higher fragrance loading is used in air freshening article, then deodorizing duration is improved, but manufacturing difficulty increases
Solution Approach 1:
The patent changes the parameter of fragrance loading concentration to at least 5% by weight of the fragranced plastic, which significantly extends the deodorizing duration (releasing at least 60% of initial fragrance content over 30 days). This parameter change is achieved through a straightforward process of mixing fragrance material with plastic material before molding, avoiding complex multi-step manufacturing procedures.
3Reliability
If fragrance material is incorporated into plastic body, then fragrance retention is improved, but process steps increase
Solution Approach 1:
The manufacturing process merges the fragrance loading step with the plastic molding step into a single integrated process. The fragrance material is mixed with the plastic material and then molded together in one operation, creating a unified fragranced plastic article. This merging approach improves fragrance retention by ensuring uniform distribution while actually reducing the number of separate process steps compared to sequential loading and molding operations.
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 solution results in significantly improved fragrance release and duration, with the air freshening article releasing at least 60% of its initial fragrance content over 30 days, outperforming current products and providing enhanced deodorizing capabilities with longer-lasting odor control.
Implementation Method 1
a plastic is loaded with a fragrance material to produce a fragranced plastic
Data Source
AI summary
An air freshening article, such as a deodorizing urinal screen, includes a body that is formed from a fragranced plastic that includes a plastic loaded with a fragrance material. The fragrance material is included in an amount of at least 15% by weight of the fragranced plastic. A method of producing a deodorizing urinal screen includes a fragrance loading stage in which a plastic is loaded with a fragrance material to produce a fragranced plastic. The fragranced plastic includes at least 15 wt % fragrance material. In a molding stage subsequent to the fragrance loading stage, the fragranced plastic is molded into the urinal screen.