Dual-Adhesive Laminating Coating Accuracy via Linkage Control
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Solution Overview
Problem
Conventional five-roll transfer coating methods for dual-component adhesive laminating processes suffer from low coating accuracy, poor product control stability, and difficulty in achieving extremely low coating requirements.
Innovation Solution
A laminating method and machine that uses multi-roll transfer coating for Adhesive A and engraved roller gravure coating for Adhesive B, with linkage control of coating amounts to maintain a preset ratio and meet set requirements, followed by rapid curing to form a laminating film.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional five-roll transfer coating methods are used for both substrates, then the coating process is simple, but the coating accuracy is low and product control stability is poor
Solution Approach 1:
The patent divides the coating process into two independent segments: multi-roll transfer coating for Adhesive A on the first substrate, and engraved roller gravure coating for Adhesive B on the second substrate. This segmentation allows each coating method to be optimized independently, achieving high coating accuracy while maintaining manageable process complexity through modularization.
Solution Approach 2:
The patent changes the coating parameters and methods for different adhesives: using multi-roll transfer coating for Adhesive A with coating amount CA, and engraved roller gravure coating for Adhesive B with coating amount CB, maintaining a preset ratio CA/CB. This parameter differentiation enables precise control of coating accuracy and uniformity for each adhesive type.
2Reliability
If conventional five-roll transfer coating methods are used, then the equipment is simple, but the control stability is poor and extremely low coating requirements cannot be met
Solution Approach 1:
The patent implements feedback control through linkage control of coating amounts, where the coating amount of Adhesive A is maintained at a preset ratio relative to Adhesive B (CA/CB = preset ratio). This feedback mechanism ensures stable product control by continuously adjusting coating parameters to maintain the desired ratio, meeting even extremely low coating requirements with high reliability.
3Adaptability or versatility
If dual-coating laminating is implemented, then coating flexibility is improved, but the coating amount control becomes complex
Solution Approach 1:
The patent simplifies dual-coating control by establishing a clear parameter relationship: CA = 100 × CB / RAB, where CA is the coating amount of Adhesive A, CB is the coating amount of Adhesive B, and RAB is the mixing ratio. This parameter change approach provides coating flexibility for different adhesive types while maintaining simple and manageable control through the preset ratio relationship.
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 method achieves high coating accuracy, good uniformity at extremely low coating amounts, ability to handle large coating amounts, and improved control operability, with short post-curing time.
Implementation Method 1
using engraved roller gravure coating to apply Adhesive B on the coating surface of the second substrate
Implementation Method 2
using multi-roll transfer coating to apply Adhesive A on the coating surface of the first substrate
Implementation Method 3
pressing and laminating the coating surface of the first substrate with the coating surface of the second substrate
Implementation Method 4
rapidly curing the wound material into a laminating film under set temperature conditions
Data Source
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AI summary
A laminating method and machine for different coating ways with linkage control of coating amounts, using two coating methods of five-roll transfer coating and gravure coating to respectively coat Adhesive A and B of dual-component adhesive on the surface and inner layer of the laminating substrate. By controlling the coating amount in two different ways, the coating amounts of the two methods are linked controlled, so that the coating amount of Adhesive A remains at a certain proportion relative to Adhesive B, and the total coating amount meets the requirements of low coating amount and/or reaction curing of dual-component adhesive. Then, the two coated surfaces of the substrates are compounded and rewound relative to each other. The laminating film produced by this method has the advantages of short curing time after the machine, high coating accuracy, good uniformity at extremely low coating amounts, the ability to achieve large coating amounts, and good control operability.