Adhesive Tape Removal Mixture for Vehicle Body Mouldings
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Solution Overview
Problem
Current methods for removing double-sided adhesive tape from vehicle body mouldings are time-consuming, expensive, and often damage the mouldings or pose safety hazards, especially with the use of solvents, and are not effective for newer materials like thermoplastic olefins.
Innovation Solution
A mixture of kerosene and diesel in a 1:1 ratio, with 1 to 10% highly aromatic hydrocarbon solvent and optional 0 to 10% perfume, is used to dissolve and remove the adhesive tape from mouldings, allowing for efficient and safe reconditioning of the mouldings without damaging them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If grinding is used to remove double sided tape, then the tape can be removed, but the moulding is frequently damaged or left with an undesirable surface
Solution Approach 1:
The patent replaces the mechanical grinding process with a chemical solution consisting of kerosene, diesel, and aromatic hydrocarbon solvent. This chemical approach dissolves the adhesive tape without mechanically contacting the moulding surface, thereby removing the tape while preserving the moulding's surface integrity and avoiding damage.
2Manufacturing precision
If solvents are used to remove double sided tape, then the moulding is protected from damage, but large quantities of solvent are wasted and fire risk increases
Solution Approach 1:
The patent creates a composite solvent system combining kerosene, diesel, and aromatic hydrocarbon solvent in specific proportions. This composite formulation achieves effective adhesive dissolution while utilizing the complementary properties of each component: kerosene and diesel provide base solvent action with lower fire risk compared to pure aromatic solvents, while the aromatic hydrocarbon enhances adhesive dissolving power. The mixture optimizes both effectiveness and safety.
Solution Approach 2:
The patent modifies the solvent parameters by using a multi-component mixture rather than a single solvent. The specific ratio of kerosene to diesel (1:1 to 2:1) and the controlled addition of aromatic hydrocarbon (5-20% by volume) creates an optimized formulation that balances solvent effectiveness, fire safety, and cost efficiency.
3Productivity
If hot blowers are used to soften adhesive, then the tape can be pulled from the moulding, but the moulding is frequently damaged and the equipment is expensive
Solution Approach 1:
The patent replaces the thermal method (hot blower) with a chemical dissolution method. Instead of applying heat to soften the adhesive, the chemical solution directly dissolves the adhesive tape, allowing it to be removed without thermal contact that could damage the moulding material or create safety hazards.
4Productivity
If scraping with razor blade or thumb is used, then the tape can be removed, but the operator risks blisters or cut fingers and the process is time-consuming
Solution Approach 1:
The patent replaces manual mechanical scraping with chemical dissolution. The operator simply applies the solution to the adhesive tape, allowing it to dissolve and be easily wiped away. This eliminates the need for dangerous manual scraping actions while significantly reducing the time and effort required for tape removal.
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 at least 90% of the tape within a few hours, reduces the risk of fire and mess, and allows for quick reapplication of new adhesive tape, making the process more efficient and safer for operators.
Implementation Method 1
A mixture of kerosene and diesel in a 1:1 ratio, with 1 to 10% highly aromatic hydrocarbon solvent is used to dissolve and remove the adhesive tape from mouldings
Implementation Method 2
1 to 10% by vol. of an additive comprising a highly aromatic hydrocarbon solvent
Data Source
AI summary
A solution for use in removing a double sided adhesive tape from moldings and which can have the further property of conditioning the molding for re-use. The solution comprising an admixture of ingredients which can synergistically function to give the desired properties and advantages. The mixture comprising:(a) a ratio of about 1:1 of Kerosene:Diesel;(b) 1 to 10% by vol. of an additive comprising a highly aromatic hydrocarbon solvent; and(c) 0 to 10% by vol. of perfume.