Cosmetic packaging materials generally include the main container and auxiliary materials.The main containers usually include: plastic bottles, glass bottles, tubes, and vacuum bottles.Auxiliary materials usually include: color boxes, inner boxes, and outer boxes.Outer packaging = inner packaging + outer paper box (set box)Now let me introduce the tubes among OEM packaging materials.1. Classification of tubes:Tubes are divided into single-layer, double-layer, and five-layer tubes, each differing in pressure resistance, permeability, and tactile feel. For example, a five-layer tube consists of an outer layer, an inner layer, two adhesive layers, and a barrier layer. Features: It has excellent gas barrier performance, effectively preventing the infiltration of oxygen and odor gases, while also preventing the escape of the contents' fragrance and active ingredients.

2. Categories of tubes with high cost-performance ratio:Double-layer tubes are more commonly used, while single-layer tubes can be used for mid-range products. The tube diameters range from 13# to 60#. When selecting a tube of a certain diameter, different lengths indicate different capacity characteristics, with capacities ranging from 3ml to 360ml adjustable. For aesthetic coordination, diameters below 60ml commonly use sizes below 35#, while 100ml and 150ml typically use diameters between 35# and 45#. For capacities above 150ml, diameters above 45# are required.3. Classification of tubes based on manufacturing process:They are classified into round tubes, oval tubes, flat tubes, and ultra-flat tubes. Flat tubes and ultra-flat tubes have more complex manufacturing processes compared to other types and are newer types introduced in recent years, hence their higher prices.4. Classification of tube cap shapes:Generally divided into flat caps, round caps, high caps, flip caps, ultra-flat caps, double-layer caps, spherical caps, lip balm caps, and plastic caps, which can also undergo various processing techniques such as gold or silver edging, colored caps, transparent, spray painting, and electroplating. Pointed caps and lip balm caps usually come with inner plugs. Tube caps are injection molded, while tubes are extruded; most tube manufacturers do not produce their own tube caps.