Water-Repellent Bobbin Cleaning Fabric Roll for Printing Cylinders
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Solution Overview
Problem
Clogging of spray bars, nozzles, and water tubes in printing systems due to paper debris, ink residues, and lime in the water used for cleaning, leading to inefficiencies and maintenance issues in the cleaning process of printing cylinders.
Innovation Solution
A roll of cleaning fabric with a water-repellent coating on a paper-based bobbin, impregnated with a micro-emulsion cleaning composition containing 5-50 wt% water, which dissolves paper debris without the need for pre-spraying water, and is packaged in a vacuum-sealed bag to prevent evaporation and ensure even distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If water is sprayed onto printing cylinders using spray bars or nozzles to remove paper residues, then paper residues are removed from the cylinders, but the spray bars, nozzles and water tubes are prone to clogging due to paper debris, ink residues and lime in the water
Solution Approach 1:
The patent extracts the water application function from the cleaning process by using a water-repellent coated bobbin that prevents water from the cleaning composition from being absorbed, thereby eliminating the need for spray bars, nozzles, and water tubes that are prone to clogging
Solution Approach 2:
The patent employs a disposable cleaning fabric roll with a water-repellent coated bobbin that is used once and then discarded, eliminating the need for maintenance of spray devices and avoiding clogging issues associated with reusable spray systems
2Ease of manufacture
If the bobbin is made from paper material to be environmentally friendly and lightweight, then the bobbin is degradable and cheap, but the paper bobbin would degrade when exposed to water in the cleaning composition
Solution Approach 1:
The patent creates a composite structure by coating a paper-based bobbin with a water-repellent coating, combining the environmental benefits of paper material with the water resistance needed to prevent degradation during the cleaning process
Solution Approach 2:
The water-repellent coating is applied in advance to the paper bobbin to prevent water from the cleaning composition from degrading the paper material, allowing the bobbin to maintain its structural integrity throughout the cleaning process
3Productivity
If the cleaning fabric is impregnated with a cleaning composition containing water to dissolve paper debris, then paper residues are dissolved, but the water in the cleaning composition may evaporate before use during transport and storage
Solution Approach 1:
The patent uses a flexible foil or film to wrap the cleaning fabric roll, creating a barrier that prevents water evaporation from the cleaning composition during transport and storage while allowing the fabric to remain impregnated with the cleaning solution
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 eliminates the need for pre-spraying water, reduces clogging risks, and ensures effective cleaning of printing cylinders by dissolving paper residues and ink without degrading the paper-based bobbin, while maintaining the cleaning composition's effectiveness.
Implementation Method 1
a water repellent coating on a paper-based bobbin
Implementation Method 2
impregnated with a micro-emulsion cleaning composition containing 5-50 wt% water
Data Source
AI summary
In a method for cleaning cylinders included in a printing system, a roll of cleaning fabric is used. The roll (12) has a bobbin (14) coated with a water repellent, and the cleaning fabric (13) is wound onto the bobbin (14). The cleaning fabric (13) is impregnated with a cleaning composition containing water in a concentration of between 5 and 50 wt %.