The production process of anti-reflection glass has many steps. As mentioned in the previous article, this step includes glass cleaning, pre-coating treatment, vacuum coating and post-treatment. After all the processes have been completed, the final step is usually the quality inspection and packaging of the finished product. This step is to ensure that the product meets the high quality requirements. And can maintain its anti-reflection performance and integrity during transportation and storage.
The following is a detailed introduction of the importance of the last step in the anti-reflection glass manufacturing process, the main process and technical details.
The importance of the last step: Ensure that the product meets quality standards
The reason why the anti-reflection glass has special optical properties is mainly due to the special coating treatment of its surface. When the anti-reflective glass has gone through a variety of complex and fine production processes, the final step of the finished product inspection is a key link to ensure performance. The final step of quality inspection is not only to test the anti-reflection effect of the glass, but also to confirm its optical uniformity, durability, scratch resistance, surface cleanliness, etc. As a manufacturer of anti-reflection glass, we are also very strict in this step. It's all about meeting the ultimate high standards. The purpose of the packaging step is to avoid damage to the anti-reflective glass in transit. And our packaging is very strict, to ensure that the product is complete in the hands of customers.
Main test process
The anti-reflective glass goes through a series of testing processes in the final step. This is to ensure that the optical and physical properties of the product are up to standard. The following is the main testing process:
Optical performance test
Transmittance and reflectance measurement: through professional optical testing equipment, such as spectrophotometers. The transmittance and reflectance of the glass are accurately measured. The transmittance of anti-reflection glass usually needs to reach more than 90%. And its reflectivity should also be controlled below 2%. In this way, the anti-reflection effect of the anti-reflection glass produced can achieve the expected.
· Color uniformity detection: the colorimeter detects whether the color of the glass surface is uniform. This ensures a consistent visual effect in different angles of light. Color uniformity is very important for the visual experience and decorative effect, which can be seen from the surface of some details. Therefore, this is also the focus of detection.
· Anti-glare test: Anti-glare test generally uses a specific light source and Angle. This can simulate the application effect of anti-reflection glass in actual scenes. We observe the effect of light exposure to determine whether the anti-glare effect is consistent under different lighting conditions. If the anti-glare effect is consistent, it can meet the needs of users in various environments. Not the other way around.
Surface detection
Scratch and wear resistance test: In order to test the durability of anti-reflective glass, steel velvet, hard objects are usually used to test its scratch resistance. As an excellent anti-reflection glass factory, the anti-reflection glass we make has a high wear resistance. Especially for electronic displays and lenses that are susceptible to friction.
· Surface cleanliness test: Use a microscope or high magnifying glass to check the cleanliness of the anti-reflective glass. This is also to confirm whether there are dust, stains, bubbles, scratches and other defects on the surface that affect the appearance and performance.
· Anti-fingerprint detection: For some anti-reflective glass (such as mobile phone screens, displays, etc.), its surface should have a certain anti-fingerprint function. Anti-reflective glass with anti-fingerprint function also needs to be physically touched, oil testing, etc. This detection method can detect whether the glass surface will affect the visual effect due to fingerprints and grease contamination.
Physical property test
· Temperature resistance test: For some anti-reflective glass used in outdoor or high-temperature environments, a certain high and low temperature test is also required. High and low temperature testing can create extreme temperature environments. The optical properties and structural integrity of the anti-reflective glass are tested in this environment.
· Acid and alkali resistance test: acid and alkali resistance test generally involves exposing the glass surface to an acid and alkali environment. The corrosion resistance is tested in this environment to ensure that the glass does not lose its anti-reflection effect in acid rain or high humidity environments.
· Adhesion test: Anti-reflective glass will be coated during production. Therefore, the adhesion of the film layer is very important. For this inspection, the commonly used methods include tape glass test. That is, paste tape on the surface of the glass and tear it off quickly to determine whether the film layer falls off.
Packing procedure
After completing all quality tests, the qualified anti-reflective glass products are packaged. The packaging of glass should be careful and safe.
Protective film covering
Covering the surface of the anti-reflective glass with a protective film is the first step in the packaging process. The protective film can effectively prevent the glass from being scratched or contaminated during subsequent transportation or storage. The protective film needs to have good adhesion. It is also necessary to ensure the thinness of this film, and should not leave glue marks or affect the cleanliness of the glass surface when torn off.
Shock protection
In the transportation of glass, it is inevitable to experience bumps, so we must carry out good anti-reflection glass shock protection. During the packaging process of glass, foam, soft cloth or shock-proof MATS need to be used, and each piece of glass needs to be separated and protected. This protective form of packaging can avoid collision damage caused by road vibration. Thickened foam pads are usually added to the edges and corners of the glass. To prevent fragmentation caused by impact during handling.
Moisture protection
Glass has a high humidity requirement. Especially anti-reflective glass, after all, if the coating on its surface is wet, it may cause the coating to fail. Therefore, moisture-proof bags or desiccant are usually added to the packaging. This ensures that the glass will not get damp during transportation and storage. For longer periods of storage, we also use vacuum packaging or a closed environment inside the box.
Labels and logos
After each piece of glass is wrapped, it also needs to be labeled. The label shows the product model, specifications, date of manufacture and anti-reflection performance information. It is easy for customers to identify during installation and use. In addition, the glass packaging should also be marked with "fragile items", "moisture-proof" and other warning signs. This reminds transportation and handling personnel to be careful.
Quality management and traceability
In order to ensure the quality consistency of each batch of anti-reflective glass products, enterprises usually establish a sound quality management and traceability system. The test results and packaging of each finished glass must be documented for future traceability and analysis.
· Record test data: including light transmittance, reflectivity, color uniformity, surface cleanliness, etc. Detailed result data needs to be recorded and archived.
· Batch management: Each batch is assigned a unique identification number to track production and testing records. When there is a quality problem with the product, the corresponding production records and testing data can be found according to the product batch number. This enables cause analysis and quality improvement.
Sum up
The final step in the anti-reflective glass production process, namely the quality inspection and packaging of the finished product, is an important link to ensure the high quality and safety of the product. Through comprehensive optical, physical and surface inspection, anti-reflective glass can be guaranteed to achieve the best results in a variety of use environments. Perfect packaging measures can also avoid damage to the product during transportation, providing customers with complete quality products. This final step not only guarantees the optical properties and service life of the anti-reflective glass, but also sets the standard for quality management in the anti-reflective glass industry.
