Fluid Dosing Substrate Dispenser for On-Demand Wipe Saturation Control
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Solution Overview
Problem
Conventional wipe dispensing systems face issues such as drying out, non-uniform wipe saturation, chemical interaction leading to efficacy loss, lack of flexibility in fluid formulations, and limited storage duration of fluid-substrate combinations, resulting in inefficiencies and increased costs.
Innovation Solution
A substrate dispenser that allows on-demand dosing of substrates with customizable fluid application, using a computing system to control fluid application mechanisms and substrate advancement based on user input, enabling multiple fluid reservoirs and patterns, and ensuring fresh fluid application just before use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If substrates are pre-dosed with fluid and stored in sealed packaging, then fluid application is convenient, but fluid potency is lost over time due to evaporation and chemical interaction
Solution Approach 1:
The system divides the fluid and substrate into separate components (fluid reservoir and substrate roll) that are stored independently. The substrate is dosed with fluid only at the moment of use through a dosing mechanism, preventing premature contact and preserving fluid potency while maintaining ease of application.
Solution Approach 2:
The system prepares both the substrate and fluid separately in advance for storage, then performs the dosing action just before use. The substrate is loaded into the dispenser and the fluid is loaded into the reservoir, but the actual fluid application is delayed until the moment of dispensing, preserving potency while ensuring readiness.
2Ease of operation
If substrates are pre-dosed with fluid during manufacturing, then product is ready to use, but substrate and fluid must be limited to maintain efficacy over storage period
Solution Approach 1:
The system transitions from static pre-dosed substrates to a dynamic dosing mechanism that applies fluid to the substrate at the moment of use. This allows the fluid formulation to be changed or customized without being constrained by long-term storage requirements, as the fluid contacts the substrate only briefly before application.
Solution Approach 2:
The system changes the timing parameter of fluid-substrate contact from extended storage contact to momentary dosing contact. This parameter change enables the use of a broader range of fluid formulations that would otherwise degrade or interact adversely with substrate materials during prolonged storage.
3Ease of operation
If multiple wet wipes are stored in sealed packaging, then dispense is convenient, but wipes dry out over time even with proper sealing
Solution Approach 1:
The system replaces the passive sealed packaging mechanical system with an active dosing mechanism that controls fluid application. Instead of relying on the seal to prevent evaporation over time, the system uses a controlled dosing mechanism to apply the exact amount of fluid needed at the moment of dispensing, eliminating the drying out problem while maintaining convenient dispensing.
4Productivity
If fluid is applied to substrate in advance, then application is efficient, but fluid and substrate chemically interact reducing efficacy
Solution Approach 1:
The dosing mechanism acts as an intermediary between the fluid reservoir and substrate roll, controlling the interaction between fluid and substrate. It allows the fluid to contact the substrate only for the brief moment necessary for dosing, then immediately separates them, preventing harmful chemical interactions while maintaining application efficiency.
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
Ensures fluid potency and substrate efficacy by preventing premature interaction, reduces waste, and offers flexibility in fluid choices and application patterns, enhancing user customization and cost-effectiveness.
Implementation Method 1
an application mechanism configured to apply fluid from the fluid reservoir to the substrate
Implementation Method 2
a substrate advancing mechanism configured to advance the substrate from the source through the housing
Data Source
AI summary
A fluid dosing substrate dispenser comprises a housing with a first fluid reservoir and/or a first fluid reservoir holder configured to removably receive the first fluid reservoir and a second fluid reservoir and/or a second fluid reservoir holder configured to removably receive the second fluid reservoir. The dispenser includes a substrate advancing mechanism configured to receive substrate from a substrate source and to advance a portion of the substrate through the housing and an application mechanism configured to apply fluid from at least one of the first fluid reservoir or the second fluid reservoir to one or more portions of the substrate. A computing system is configured to select at least one of amount of fluid for application, composition of fluid for application, or portion of the substrate the fluid is applied based on an input received by the computing system indicating the user of the substrate dispenser.