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What are the materials of plastic bottles for cosmetics

1、 Glass bottles are mainly used in cosmetics: skin care products (face cream, lotion), perfume, essential oil, nail polish, small capacity, more than 200ml. Its capacity is rarely used in cosmetics. Glass bottles are divided into wide-mouth bottles and narrowmouth bottles. The solid paste is usually a jar. Aluminum or plastic covers shall be provided. The cap can be used for color spraying and other effects. Lotion or water-based paste usually use narrow mouth bottle, which should be equipped with pump head. If the upper cover is provided with an inner plug, the water agent is provided with a small hole and an inner plug, and the thicker lotion is provided with a large hole plug. Combination: 1. Cream bottle series: glass bottle body+double plastic cap (general capacity: 10g-50g) 2. Series: glass bottle+plastic pump head or anodized aluminum pump head (relatively high, 20-100ml). 3. Carbon powder series: glass bottle+plastic inner plug+shell (more than 100ml, also can be equipped with pump head) 4. Essential oil bottle series: glass bottle body+inner plug+large head cap or drip glue+dropper+anodic aluminum oxide cap

2、 The hose is divided into single-layer, double-layer and five-layer hoses, which have different pressure resistance, penetration resistance and hand feeling. For example, the five-layer tube has two adhesive layers, the barrier layer, from the outer layer to the inner layer. Features: It has excellent gas blocking performance, which can effectively prevent the infiltration of oxygen and odorous gas, and prevent the leakage of odorous components caused by the contents.

Combination: hose+cap/hose is usually made of PE plastic. According to the product thickness, it is divided into single-layer pipe (multipurpose, low-cost) and double-layer pipe (good sealing performance). According to the shape of the product, it can be divided into round hose (multipurpose, low cost) and flat hose, also known as special-shaped hose (it needs to be connected twice, high cost). The flexible tube shell has nuts (single layer and double layer). Most of the double covers are electroplated, which increases the product grade, makes the appearance more beautiful, and the lines lift the nut cover more.

3、 The materials of plastic bottles and plastic bottles usually include PP, PE, K, as, ABS, acrylic, pet, etc., which are commonly used for the injection molding of thick cream bottle caps, cork gaskets and pump head dust covers; PET bottle-blowing two-step molding tube blank is used for injection molding and bottle-blowing finished product packaging. Other milk liquid bottles, such as thin container walls, are blown. You only need to have a preliminary understanding of the above content. Some staff of the cosmetics manufacturer will explain to you. It is important to remember the differences between the following common materials. Pet-pet has high transparency and soft bottle body. It can be extruded, but 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, not as smooth as pet.

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