Polymers are usually referred to as plastics. Plastics are macropolymers, commonly known as plastics or resin, which are polymerized from monomers through addition or polycondensation. They can freely change their composition and shape. They are composed of synthetic resin and fillers, plasticizers, stabilizers, lubricants, pigments and other additives.
The main component of plastics is resin. The term resin was originally derived from lipids secreted by animals and plants, such as rosin and shellac. Resin refers to high molecular compounds that have not been mixed with various additives. The resin accounts for about 40% ~ 100% of the total weight of plastic. The basic properties of plastics mainly depend on the nature of the resin, but additives also play an important role. Some plastics are basically composed of synthetic resins without or little additives, such as plexiglass, polystyrene, etc.
The so-called plastic is actually a kind of synthetic resin. Its shape is similar to the pine resin in natural resin. It is artificially synthesized by chemical means and is called plastic.
Aluminum is hard and heavy. For a specific series, it can be used to increase the sense of stability.
Proportion has always been the most important foundation of aesthetics. When all things pursue beauty, how can lipstick at the top of fashion fall behind? Whether it is symmetry, middle division, golden ratio, or pipe diameter and length, it is always considering the visual angle of users.
Comfort refers to the tactility of the finger to the pipe, including size, surface roughness, elastic feedback, corner edging, etc. The pipes of zestful lady are mainly made of matte surface and soft plastic. Matte is from the visual point of view, and soft plastic is mainly based on the touch. Combined with the touch of lipstick and lips, it is soft, delicate, smooth and soft.
Size: 12 "and 9" are popular sizes. Generally, 12 "is the dominant size. Small sizes are mostly used for multi-color suits and temporary use in cosmetic shops. There is a reason for this. The central part of the upper lip of a normal woman is about 10-13mm high, and the size of the lipstick should fit two-thirds of the lip line. Therefore, the lipstick tube with an inner diameter of 12 inches is the easiest for the public to use.
Post time: May-31-2022