Universal Solvent Saturation Indicator for Sorbent Pads
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Solution Overview
Problem
Current sorbent products lack effective saturation indicators that can detect multiple types of solvents, such as water and oils, leading to inconvenience and increased costs due to the need for manual inspection and premature replacement.
Innovation Solution
A universal solvent indicating system featuring a sorbent body with a film backing and a universal indicating ink formulation that is soluble in hydrophobic, hydrophilic, and amphiphilic sorbates, allowing for visual indication of saturation through dye dispersion, which is irreversibly bonded to the sorbent body and includes a resin and dye combination that changes state when contacted by sorbates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-class solvent detection system is used, then the system is simple and cost-effective, but it cannot detect multiple types of solvents (water and oils) simultaneously
Solution Approach 1:
The patent applies universality by developing a single ink formulation containing multiple dyes (water-soluble dye and organic solvent-soluble dye) that can detect both hydrophilic and hydrophobic solvents. This allows one indication system to perform multiple detection functions that previously required separate systems, resolving the contradiction between versatility and complexity.
Solution Approach 2:
The ink formulation uses composite materials by combining different dye types (water-soluble and organic solvent-soluble dyes) within a single ink matrix. This composite approach enables the ink to respond to multiple solvent classes simultaneously, achieving multi-solvent detection without requiring multiple separate indication systems.
2Productivity
If manual inspection is performed to check saturation, then the sorbent product can be reused optimally, but labor costs and time consumption increase
Solution Approach 1:
The indication system applies self-service by automatically detecting and displaying the saturation state of the sorbent product through visual color changes. The system monitors its own status without requiring external manual inspection, eliminating labor time while optimizing product utilization by providing real-time saturation information.
Solution Approach 2:
The patent uses color changes as the indication mechanism, where water-soluble and organic solvent-soluble dyes change color upon contact with respective solvents. This visual feedback system enables automatic saturation detection, replacing manual inspection and reducing both labor costs and time loss.
3Reliability
If the sorbent product is replaced prematurely without inspection, then continuous operation is maintained, but costs increase due to unnecessary replacements
Solution Approach 1:
The indication system provides feedback by visually displaying the saturation state through dye color changes. This feedback mechanism allows users to make informed replacement decisions based on actual saturation levels rather than premature replacement, maintaining reliability while reducing resource waste from unnecessary replacements.
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
Enables efficient detection of solvent saturation across various categories, reducing labor and replacement costs by providing a visual indication of saturation, thus optimizing sorbent product usage and extending its effective lifespan.
Implementation Method 1
The resin and the dye are soluble in a plurality of categories of sorbates consisting of hydrophobic sorbates, hydrophilic sorbates, neutral sorbates, and amphiphilic sorbates
Implementation Method 2
a universal indicating ink formulation that is disposed between the film backing and the sorbent body and includes a resin and a dye dispersed in the resin
Implementation Method 3
The sorbent body has an upper surface and a lower surface and the sorbent body is configured to absorb a sorbate
Data Source
AI summary
A saturation indication system includes a sorbent body with a film backing being irreversibly bonded to the sorbent body. A universal indicating ink formulation is at least partially coated onto the film backing such that the ink formulation is disposed between the film backing and the sorbent body. The universal indicating ink formulation includes a resin and a dye dispersed in the resin. The dye is configured to indicate a state of saturation of the sorbent body, with the resin and the dye being soluble in a plurality of categories of sorbates consisting of hydrophobic sorbates, hydrophilic sorbates, neutral sorbates, and amphiphilic sorbates.