How much do you know about the materials of cosmetic plastic packaging?

As for the materials of cosmetic plastic packaging, cream bottles, bottle caps, bottle stoppers, gaskets, pump heads, and dust covers are usually injection molded with thick walls in cosmetic plastic packaging; PET bottle blowing is two-step molding, and tube embryos are Injection molding, finished product packaging is bottle blowing. Others such as lotion bottles and washing bottles with thin container walls are blown bottles. 

The inside of the aluminum-plastic hose is made of PE material and the outside is aluminum packaging. And offset printing. After cutting, roll and splice. According to the tube head, it is divided into round tube, flat tube and oval tube. In terms of price: round tube < oval tube < flat tube.

Commonly used materials for cosmetic plastic packaging mainly include the following:

一、Polyethylene (PE)

• Features: Polyethylene is a common plastic material with good chemical resistance, flexibility and plasticity. It is divided into two types: high-density polyethylene (HDPE) and low-density polyethylene (LDPE), which are mainly used to make flexible packaging for cosmetics, such as cosmetic bags.

• Application: Due to its good physical and chemical properties, PE materials are widely used in cosmetic packaging.

二、Polypropylene (PP)

• Features: Polypropylene is a plastic material with good heat resistance and chemical corrosion resistance. It has high strength and hardness, as well as good impact resistance.

• Application: PP materials are often used to make containers such as cosmetic bottles, skin care product jars, and lipstick tubes to meet the requirements of cosmetics for packaging materials in terms of heat resistance, chemical corrosion resistance, and impact resistance.

三、Polyethylene terephthalate (PET)

• Features: PET is a plastic material with high transparency and high temperature resistance, and has high mechanical strength and wear resistance. At the same time, PET materials also have good environmental performance and can be recycled and reused.

• Application: PET materials are widely used in cosmetic packaging, such as making cosmetic bottles, spray bottles, lipstick tubes, etc. Its high transparency and good physical properties make PET material one of the preferred materials for cosmetic packaging.

四、Polycarbonate (PC)

• Features: Polycarbonate is a plastic material that is strong, resistant to high temperatures and has good impact resistance. It has high transparency and good processing properties, and can meet the aesthetic and practical requirements of cosmetic packaging.

• Application: PC materials are often used to make containers such as cosmetic bottles and facial cream jars to display the texture and color of cosmetics while protecting the quality of the cosmetics.

五、Other materials

• Polyvinyl alcohol (PVA): PVA is a biodegradable plastic material with good transparency and plasticity. It is often used to make environmentally friendly packaging materials such as disposable cotton bags and cosmetic bags.

• Acrylic (PMMA): Acrylic bottles are made of injection molded bottles and have poor chemical resistance. Generally, they cannot be used to hold pastes directly and need to be equipped with an inner tank barrier. It has high permeability and a particularly thick upper wall, but is relatively expensive.

• AS and ABS: AS has better transparency than ABS and has better toughness. Both materials are also commonly used in cosmetic packaging.

Summarize

Cosmetic plastic packaging is made of a variety of materials, each with its own unique properties and scope of application. When selecting plastic packaging materials for cosmetics, comprehensive considerations need to be made based on the characteristics of the product and market demand. 

The safety of plastic packaging materials for cosmetics is mainly due to the migration and dissolution of toxic and harmful substances remaining inside the materials, resulting in food contamination. Plastics are easily charged. , easy to absorb fine dust impurities and microorganisms, causing contamination to cosmetics. But what we can relatively rest assured is that the commonly used plastics for cosmetic packaging are PE (polyethylene), PP (polypropylene) and PET (polyester), because less additives are used during processing and the resin itself is relatively stable. Their safety is Very high.