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Process Specification for OCA Optical Adhesive Die-cutting

OCA (Optically Clear Adhesive) is a specialized adhesive used for bonding transparent optical components such as lenses. It is required to be colorless, transparent with a light transmittance of over 90%, have good bonding strength, and be able to cure at room or moderate temperatures with minimal shrinkage upon curing. In short, OCA is a special optically transparent double-sided adhesive!

Pre-operation Procedures for OCA Optical Adhesive Die-cutting

1. Review handover records to understand equipment status.

2. Check die-cutting quantities and product quality against production work orders as per the production schedule.

3. Thoroughly inspect and adjust the machine after ensuring there are no foreign objects present.

Pre-production Operating Guidelines for OCA Optical Adhesive Die-cutting

1. Check if the die-cutting matches the box size.

2. Check for any defects in the product.

3. Select the base template material based on the product quantity, paper type, and box structure.

4. Install the die-cutting plate, secure it tightly with screws to prevent plate detachment. The base template thickness should be equal to the paper thickness of the die-cut product.

5. Install the base template, clean the surface of any debris, and secure it tightly.

6. Adjust the die-cutting pressure based on the paper thickness. The pressure should be gradually increased to 80% penetration from light to heavy to avoid equipment damages during adjustment.

7. Adjust the position of the upper and lower ejector pins on the paper release component and secure them tightly.

8. After adjusting all components, produce a sample sheet according to the box requirements. After inspection and approval from the supervisor, normal production can proceed.

Operating Guidelines during Production of OCA Optical Adhesive Die-cutting

1. Follow the production requirements and approved sample standards as per the work orders.

2. Perform sampling inspections every 5-10 minutes during production. If there are any quality issues, report them promptly and resolve them before continuing production.

3. After each die-cut, conduct a comprehensive inspection and fill out the "Die-cutting Process Form." If any quality issues occur, separate and place the defective products accordingly, and fill out the "Abnormal Product Process Form."

4. In case of material issues, stop production, fill out the "Feedback Form for Poor Production Material Quality," and coordinate with the relevant departments to resolve the issue for subsequent production preparations.

Post-production Operating Guidelines for OCA Optical Adhesive Die-cutting

1. The machine operator should fill out the "Die-cutting Daily Report," "Process Quality Statistics Table," and "Production Equipment Daily Inspection Form" every day.

2. Separate the finished die-cut products into qualified and non-conforming items and clearly label them.

3. When production is completed, the equipment should be stopped at the open mold position.

4. Perform equipment maintenance according to the regular maintenance plan.

5. Carefully fill out the shift handover records.

6. Power off the equipment.

Sub-divisions of OCA Optical Adhesive Die-cutting Process

1. Die template structure.

2. Process schematic diagram (using Structure I product as an example, bare cutting scheme).

3. Bare cutting has strict requirements on the environment and materials. Temperature and humidity control should be implemented to minimize static electricity generation. Under dry environmental conditions, ordinary paper materials, except for dust-free paper, should not directly enter the dust-free room. Friction between materials can also generate static electricity. If the materials are dirty, contaminated, or if there are fuzz or debris from cutting or slitting that is not removed before use, they may be attracted due to static electricity, causing foreign particles in the product. Personnel control is crucial, as it is primarily caused by human factors. Failure to comply with management regulations can lead to deteriorating dust-free environments.

4. Bare cutting produces good results with regular pressure marks around the product perimeter and extrusion on the adhesive, causing shrinkage.



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