Quality inspection for plastics
Inline inspection system for defect-free material
The new embedded camera from Isra comes with an optimized detection rate for easier and more reliable handling.
Today, intelligent automated inspection enables a maximum level of quality. Small, poorly contrasting defects and scratches as well as inhomogeneities in the material are detected, thus maximizing the efficiency of quality control. The lighting concept makes all defect types visible and detects point defects, inclusions and other defects regardless of their position.
According to the company, Isra's new camera sensor technology now also improves the reliable detection of color defects. This means that low-contrast defects can be detected and classified even more reliably. The high quality of the surface inspection also avoids the false detection of supposed defects and enables quality decisions to be made on the basis of reliable facts.
The quality of the coating of films is also decisive for the quality of the final product: the gloss and haze of films provide information on numerous quality-critical factors. Based on the methods developed in-house for measuring haze and gloss, Isra has successfully developed Cop (Control of Optical Properties), a patented process with which various material properties such as gloss, haze or uniformity of the coating can be monitored across the entire width of the web during production: The special Isra line LEDs are used as a point light source, which alternately illuminate different points on the material web.
The inspection process takes into account the varying intensity of the light entering the camera and the intelligent Isra image processing software converts the variations caused by the changes in material properties into values for haze or gloss.
In addition to the detection and classification of defects, the inspection system offers new Beyond Inspection modules. They optimally complement the system and maximize performance: The new offline recipe optimisation allows process optimisation in parallel to the ongoing inspection. The recipes are processed, optimized and tested offline by the operator and then transferred to production. This saves on material usage and downtime. In addition, all systems at several sites can be managed from one central location, allowing uniform performance and quality decisions to be made across all lines and plants. The new Real Time Video Analyzer checks the material produced at an early stage, shortens the commissioning time and reduces waste.
Manufacturers can use the all-in-one system to increase the quality of their products with maximum efficiency. The 100% inline defect inspection and monitoring of optical properties also reduce rejects. Product data supports decision-making at various levels and ensures full transparency of production processes. as












