The basic classification of plastic cosmetic hose caps

The basic classification of plastic cosmetic hose caps According to the assembly method of the container, plastic cosmetic hose caps can be simply divided into the following three categories.

1. Plastic cosmetic hose cap-screw cap, as the name implies, screw cap means that the cap is connected and matched with the container through the screw structure of its own. Thanks to the advantages of the thread structure, when the screw cap is tightened, a relatively large axial force can be generated through the occlusion between the threads, and the self-locking function can be easily realized. At the same time, some caps that require high positioning accuracy will also use screw caps with threaded structures. Features of plastic screw cap: Tighten or loosen the cap by rotating the cap. Advantages: strong self-locking ability, the cover is not easy to be pulled out, the axial force of the cover is even, which is good for sealing. Disadvantages: high manufacturing cost. Use occasions: packaging with high sealing requirements and precise positioning requirements

2. Plastic cosmetic hose caps-snap caps are caps that fix themselves on the container through structures such as claws. We generally call them snap caps. The buckle cover is designed based on the high toughness of the plastic itself, especially the tougher materials like PP/PE, which can maximize the advantages of the claw structure. During installation, the claws of the buckle cover can undergo short-term deformation when subjected to a certain pressure, and stretch over the ratchet structure of the cosmetic hose mouth. Then, under the action of the elasticity of the material itself, the claws quickly return to their original shape. Hold the mouth of the container tightly so that the lid can be fixed on the container. This efficient connection method is particularly favored in industrialized mass production.

Features of plastic buckle lid: The lid is fastened to the mouth of the container by pressing. Advantages: easy to install the cover and low manufacturing cost. Disadvantages: The axial force is uneven, and it will be pulled out under a certain force. Use occasions: low-cost fast-moving consumer goods packaging.

3. Plastic cosmetic hose cover-welding cover is a type of cover in which the mouth of the cosmetic hose is directly welded to the soft package by means of welding ribs and other structures, which is called a welding cover. It is actually a derivative of the screw cap and the snap cap, but the liquid outlet of the container is separated separately and assembled on the cap. Welded cover is a new type of cover that appeared after plastic flexible packaging, and it is widely used in daily chemical, medical and food industries. Features of plastic welded lid: The cosmetic hose port of the welded lid is welded to the flexible package by hot melt. Advantages: low cost and environmental protection. Disadvantages: low consumer experience. Use occasions: replacement equipment, promotional equipment.