Issues to be considered when designing cosmetic packaging material hoses

Manufacturers of plastic molded products need to consider the design of cosmetic packaging hoses.

(1) When designing a pressure-type cosmetic packaging tube, if the material is high-density polyethylene and polypropylene, the cross-section of the cosmetic packaging tube is rectangular or oval, and the material is low-density polyethylene and polypropylene. For other flexible cosmetic packaging material hoses, the cross section is made into a circular shape. Such content is squeezed out of the cosmetic packaging tube. Cosmetic packaging material hoses and plastic parts are mainly bottle caps and sealers. The design of the cosmetic packaging material hose mouth should be subject to key tests. How can the cosmetic packaging material hose mouth be tightly closed with the cap and sealer at the bottom of the cosmetic packaging material hose? The mechanical properties of the cosmetic packaging material hose are weak. Location. Therefore, the bottom of the cosmetic packaging material hose is generally designed like a concave shape. The position of the corners of the cosmetic packaging material hose and the recesses inside are all too large arcs. Because the accumulation of cosmetic packaging material hose is convenient, the stability of the ceiling of the cosmetic packaging material hose is increased, and the bottom of the cosmetic packaging material hose has an inner groove.

(2) In the case of marking on the surface of the cosmetic packaging material hose, flatten the reference sticker. A 'frame' is designed on the surface of the cosmetic packaging material hose to be positioned incorrectly without moving. When molding, the first contact part is likely to be the first hardened part. Therefore, the wall at that part will become thicker. The edge and the rotating part are type expansion, and the contact part will thicken the wall of the part. Therefore, the edges and corners of the cosmetic packaging material hose are designed to be rounded. If the surface shape of the cosmetic packaging material tube is changed, the part of the cosmetic packaging material tube will be relatively thinner, which can increase the grooves and ribs around the surface of the cosmetic packaging material tube, and improve the rigidity and bending resistance of the cosmetic packaging material tube. Temperament. By strengthening the longitudinal grooves or ribs, the long-term load, sagging or deformation of the cosmetic packaging material hose can be removed.

(3) The printing surface of the cosmetic packaging material hose is where consumers concentrate their efforts. The printing surface is flat and continuous; if the cosmetic packaging material hose includes a steering wheel, grooves, ribs and other structures, care must be taken not to cause inconvenience to the printing operation. Although the oval cosmetic packaging material hose is strong, the manufacturing cost of the mold is also high. Therefore, in order to ensure the rigidity of the cosmetic packaging material hose, in addition to selecting high-rigidity materials, the cosmetic packaging material hose is designed to improve the rigidity and load-bearing strength of the cosmetic packaging material hose.

(4) Many plastics are notched, so cosmetic packaging hoses are prone to cracks and cracks at the front end, the screw roots of the mouth, the neck and other parts, so these parts are designed with rounded corners. . For the intersection of the rectangular cosmetic packaging material hose, in order to support most of the load of the cosmetic packaging material hose, part of the wall will become thicker, which can improve the rigidity and load resistance of the cosmetic packaging material hose.

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