4 The outer cup made of plastic or stainless steel.
6 Next,for a cold insulated bottle,add the insulation is foam in a liquid form is sprayed into the space between the cups and allowed to harden. And for a hot-insulated bottle,in the space between the cups is vacuum ,a large vacuuming machine sucks the air from the space between he two cups.
7 A silicone seal coating is sprayed on the cups, holding them together to form a single unit.
8 Steel bottles are then painted.
9 The company logo is pad-printed onto each bottle or a sticker with the company name is placed on the bottle. Pad-printing creates a permanent stamp in the material, rather than on it.
10 After the insulated bottles pass quality inspections, they are wrapped and prepared for shipping.
The top
11 Like the bottle, the top of the insulated bottle is blow molded. If the top has a stopper (many insulated bottled have stoppers that can be pulled upward from the cap. Liquid flows through a small hole in the stopper), that is also blow-molded.
12 A tiny hold is punched in the stopper to allow liquids to flow through it.