In fact, a lot of people don't know much about roof coverings. In plain terms, it is the lid on the milk carton that we usually drink, so everyone must know this. So, what are the acceptance criteria for roof coverings in production? Anhui Chaoyang Packaging Co., Ltd. tells everyone.

The roof cover consists of two machined and threaded parts, a screw cap and a box lid. The box cover mouth part has an anti-theft box cover mouth integrally injection-molded with the box cover to form an anti-theft structure. Consumers can pull up the pull ring connected to the lid of the box to release the tamper-proof structure and open the lid of the box. There is also a non-cushion-type sealing plug on the top of the inside of the screw cap, which plays a role of sealing the lid of the box when the screw cap is closed again. What the seller provides to the buyer will be a product consisting of a screw cap and a lid.

Each roof cover taken is regarded as a basic unit to be inspected. According to the acceptance criteria, when there is a defect in each basic unit, it is regarded as an unqualified number.

The threads of the lid and the screw cap are completely formed, the threads are intact and there are no cavity marks or missing injection molding; there are no fusion lines that will cause performance problems; there are no obvious dents or bubbles on the lid or screw cap surface; pull There is no missing ring sealing plug, and the seal is continuous and complete; the screw cap and the lid of the box coincide with each other; the screw cap and the lid of the box are not separated.

The above is the relevant content brought to you by Chaoyang Packaging. At the same time, manufacturers are welcome to call us at any time to buy!