Why do water bottles have patterns?

Grip: Its enhances the grip and ergonomics especially when the bottle is wet. Strength: These grooves makes the bottle structurally strong and stable without adding any extra material.

Why are plastic water bottles good?

Rugged and Safe Unlike glass containers, plastic bottles are rugged and resilient; they don’t shatter into sharp pieces when dropped, making products and packaging safe to handle. The same resilience makes plastic bottles unlikely to leak or burst, protecting the contents as well as exterior shipping cartons.

What is plastic made of?

Plastics are made from raw materials like natural gas, oil or plants, which are refined into ethane and propane. Ethane and propane are then treated with heat in a process called “cracking” which turns them into ethylene and propylene. These materials are combined together to create different polymers.

What types of plastic are plastic bottles?

#1 PET – Polyethylene Terephthalate PET or PETE, as it is also known, is commonly used for fizzy drinks, water bottles and salad trays. PET is widely recycled back into the manufacturing of items such as textiles, clothing, food and beverage containers and even carpet.

Why are bottles shaped like they are?

As for why glass bottles have the shape that they do, that all comes down to packaging constraints. Long-necked bottles have been used for a little over 100 years now. This design allows packers to easily seal off the top with a small bottle cap, reducing the size of the seal and thus saving money.

Who invented the plastic bottle?

Engineer Nathaniel Wyeth
Engineer Nathaniel Wyeth patented polyethylene terephthalate (PET) bottles in 1973. The first plastic bottles able to withstand the pressure of carbonated liquids, they were a much cheaper alternative to glass bottles. Globally, more than a million plastic bottles are sold every single minute.

Why do plastic bottles have dents on the bottom?

It prevents the bottle from resonating as easily, decreasing the likelihood of shattering during transportation. It allows bottles to be more easily stacked end to end. Bottles could be stacked in cargo holds on ships without rolling around and breaking.

What is the material used to make plastic bottles?

Typically, the plastic bottles used to hold potable water and other drinks are made from polyethylene terephthalate (PET), because the material is both strong and light.

What happens to the bottles after they are made?

Once the bottle (or, in continuous manufacturing, bottles) has cooled and set, it is ready to be removed from the mold. If a continuous molding process has been used, the bottles will need to be separated by trimming the plastic in between them.

What is the manufacturing process of a bottle?

Plastic Bottle Manufacturing Process The first stage of a typical 2-step Reheat and Blow Machine (RBM) bottle manufacturing process is injection molding. Plastic pellets are plasticized in the barrel of an injection molding machine where the plastic is melted by heat and the shearing action of a feed screw.

Why do plastic bottles have to be cooled before making?

Sometimes, to make sure that the bottom of each bottle has a flat shape to help it stand up straight, another piece plastic is joined to the bottle during the moulding process. The bottles must be cooled instantly or they will lose their shape as the warm plastic will creep downwards.