These small rectangular blocks of coloration on the backside of toothpaste tubes, typically known as “eye marks,” “coloration marks,” or technically “eye-mark sensors,” will not be meant for shoppers. They’re used within the manufacturing course of to information sensors that management the place the tube is lower and sealed throughout manufacturing. These marks guarantee constant sealing and trimming, leading to uniformly packaged merchandise.
Constant placement of those marks is important for environment friendly and high-speed automated manufacturing. With out them, the method can be significantly slower and extra susceptible to errors, resulting in potential leakage, inconsistent fill ranges, and elevated manufacturing prices. This automated course of has turn out to be a regular within the trade, enabling large-scale manufacturing of toothpaste and different tube-packaged merchandise.
