Ethanol-TGBE Cleaning Medium for Component-Safe Adhesive Removal
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Solution Overview
Problem
Existing machines with media transport mechanisms face issues with contaminant buildup, such as adhesive residue and debris, which can lead to malfunctions and increased maintenance costs, particularly in devices like label printers and ATMs, due to inadequate cleaning solutions that are not safe for sensitive components.
Innovation Solution
A cleaning medium comprising ethanol and tripropylene glycol n-butyl ether (TGBE) is used to effectively dissolve contaminants while being gentle on rubber and silicone components, with optional additives like propylene glycol monobutyl ether and dipropylene glycol n-butyl ether, applied through a cleaning card or substrate designed for internal machine surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cleaning solutions are used to remove adhesive residue and debris, then cleaning effectiveness is improved, but damage to sensitive components (rubber rollers, silicone parts) occurs
Solution Approach 1:
The cleaning solution changes the chemical parameters by using a specific blend of ethanol and tripropylene glycol n-butyl ether in controlled ratios (50-70% TGBE, 30-50% ethanol). This parameter optimization allows the solution to effectively dissolve adhesive residues while maintaining compatibility with rubber and silicone components, preventing swelling and degradation that would occur with traditional harsher cleaners.
Solution Approach 2:
The invention creates a composite cleaning formulation by combining ethanol and tripropylene glycol n-butyl ether in specific proportions. This composite approach leverages the complementary properties of both substances to achieve both strong adhesive removal capability and gentle treatment of sensitive machine components, resolving the contradiction between cleaning power and component protection.
2Reliability
If strong solvents are used to dissolve adhesive residue, then adhesive removal is improved, but swelling and degradation of rubber and silicone components occurs
Solution Approach 1:
The solution carefully controls the concentration parameters of TGBE (50-70% by weight) and ethanol (30-50% by weight) to achieve the optimal balance. This parameter precision ensures sufficient adhesive dissolution power while preventing excessive swelling or degradation of rubber and silicone components, directly addressing the contradiction between strong solvent action and component stability.
3Reliability
If frequent cleaning is performed to prevent malfunctions, then machine reliability is improved, but downtime and maintenance costs increase
Solution Approach 1:
The cleaning card serves as a disposable or limited-life maintenance element that can be easily replaced. By using this approach, the system allows for quick, low-cost cleaning interventions that prevent malfunctions without requiring time-consuming or expensive maintenance procedures, thus reducing overall downtime while maintaining machine reliability.
Solution Approach 2:
The cleaning solution is designed to be applied preventatively at scheduled intervals before adhesive residue accumulates to problematic levels. This preliminary cleaning action prevents malfunctions from occurring in the first place, reducing the need for emergency maintenance and minimizing downtime by performing cleaning during normal operational windows.
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 effectively removes adhesive residue and debris, reduces downtime, and maintains optimal machine performance by minimizing swelling and degradation of sensitive components, ensuring regulatory compliance and safety.
Implementation Method 1
a cleaning medium comprising ethanol and tripropylene glycol n-butyl ether (TGBE) is used to effectively dissolve contaminants
Data Source
AI summary
Provided are cleaning medium and a cleaning card impregnated, coated, treated or saturated with or including cleaning medium and more specifically to cleaning medium and cleaning cards having the capability of cleaning internal surfaces of machine-actuating mechanisms. The cleaning medium may include ethanol and tripropylene glycol n-butyl ether (TGBE). The TGBE may be present in an amount of about 50-70% by weight based on the total weight of the cleaning medium.