Every time you pick up a shampoo bottle and press it, do you ever wonder: Does the bottle material affect the product's safety? Why are shampoos often sold in transparent bottles, shower gels in frosted bottles, and hand soaps in thicker bottles? The answer lies in the plastic material—different plastic bottle materials vary significantly in corrosion resistance, safety, and compatibility. Choosing the right material ensures your shampoo and conditioner products are both user-friendly and safe.
First, understand: Two core materials commonly used in household chemical bottles—PE and PET.
PE (polyethylene) and PET (polyethylene terephthalate) are the mainstays in shampoo, shower gel, and hand soap packaging:
PE: Features include non-toxicity, strong toughness, and no odor. It releases no harmful substances at room temperature and is suitable for a wide range of applications.
PET: High transparency, moderate hardness, resistance to most shampoo and conditioner ingredients, and high recyclability make it a popular choice for PET bottle manufacturers and brands.
Daily Chemical Bottles: Select Materials by Category for More Accurate Safety and Application
Although shampoo, shower gel, and hand soap all fall into the daily chemical category, their differing ingredients and usage scenarios necessitate different requirements for plastic bottle materials. Choosing the right material ensures both safety and practicality:
Shampoo: PET bottles offer both aesthetics and safety.
Particularly suitable for transparent shampoo, PET bottles clearly showcase the product's texture. PET bottle suppliers precisely control standard bottle opening sizes, such as 38mm, to accommodate lotion pumps and prevent leaks. For larger volumes, purchase thicker versions from wholesale PET bottles for improved drop resistance.
Shower gel:
Bathrooms are humid and prone to collisions. PE bottles are non-toxic, odorless, and resist cracking even after prolonged use. They retain their shape when pressed and resist breaking when dropped, minimizing safety hazards.
Guangdong Hongyuan's PE bottle and PET plastic bottle offer customizable sizes and are cost-effective when purchased in bulk, making them ideal for brands seeking to control costs.
Identifying the material of shampoo and conditioner bottles is simple: simply look for the markings on the bottom of the bottle. PET bottles are labeled "1," while PE bottles are labeled "2" or "4." Bottles labeled "2" are suitable for durable, frosted shower gel bottles and pump-type hand soap bottles; LDPE (low-density polyethylene) bottles are labeled "4," often used for lightweight, travel-sized shampoo and hand soap bottles.