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Glass bottles are mainly used in cosmetics: skin care products (creams, lotions), perfumes, essential oils, and nail polishes have small volumes, and volumes of 200ml or more are rarely used in cosmetics. Glass bottles are divided into wide-mouth bottles and narrow-mouth bottles. The solid paste is usually a wide-mouth bottle. It should come with an aluminum or plastic cover. Bottle caps can be used for color sprays and other effects; lotions or water-based pastes are usually used in narrow-necked bottles and should be equipped with pump heads. If the lid is equipped with an inner plug, the liquid preparation is equipped with a small hole and an inner plug, and the thicker emulsion is equipped with a large hole inner plug.
1. Cream bottle series: glass bottle body + double-layer plastic cap (general capacity is 10g-50g)
2. Essence series: glass bottle + plastic pump head or anodized aluminum pump head (relatively high, 20 to 100ml)
3. Toner series: glass bottle + plastic inner plug + outer shell (above 100ml, can also be equipped with pump head)
4. Essential oil bottle series: glass bottle body + inner plug + big head cap or plastic drip head + dropper + anodized aluminum cap
Second, the hose
The hose is divided into a single-layer double-layer five-layer hose, which is different in pressure resistance, penetration resistance and feel, such as a five-layer pipe from the outer layer to the inner layer with two adhesive layers and a barrier layer. Features: It has excellent gas barrier properties, can effectively prevent the penetration of oxygen and odorous gases, and prevent the odor of the contents and the leakage of effective ingredients.
Hose + cap / hose is usually made of PE plastic. According to the thickness of the product, it is divided into single-layer pipe (multi-purpose, low-cost) and double-layer pipe (good sealing performance). According to the shape of the product, it is divided into round hoses (multi-purpose, low cost) and flat hoses (also known as special-shaped pipes). The shell of the hose has a screw cap (single and double layers, most of the double caps are electroplated caps to increase the grade of the product and look more beautiful, and professional lines are mostly screw caps).
Third, plastic bottles
The materials of plastic bottles are usually PP, PE, K, AS, ABS, acrylic, PET, etc. Commonly used in cosmetic container wall thickness cream bottle caps, corks, gaskets, pump heads, dust caps for injection molding; PET bottles are blown into two-step molding tube blanks for injection molding, and blown bottle packaging. Other lotion bottles, such as thin container wall wash bottles, are blown bottles.
For the above content, you only need to have a preliminary understanding, and the professional staff of cosmetics OEM manufacturers will explain to you. It is important to keep in mind the differences between the following common materials.
PET-PET has high transparency, the bottle is soft, can be squeezed but is harder than PP.
PP-PP bottles are softer than PET, easier to squeeze, and less transparent than PET, so some opaque shampoo bottles are more common (easy to squeeze).
PE-bottles are basically opaque and not as smooth as PET. Detailed description of OEM packaging materials, a compulsory course for the cosmetics industry!
Acrylic-Thick and hard, most like glass is acrylic.