Could anyone know? If I got the stable shape of bubble, I should close the inner air of blower or still open it? (“Inner air” I mean the air for blow bubble inside.) Thank you :)
Food packaging. Trash can liners. Cup sleeves. Home Depot and Walmart bags. Cheese, bacon, meat wrapping. Shrink bundling of water or soda bottles. Blown film is used in many many applications. There are machines out there that are over 20 feet wide that make film for lamination. Ritz cracker wraps are blown film. The capri sun pouch has a blown film liner inside it. The bubble pack filling your Amazon box is blown film. This particular machine is what’s called a “lab line” that many companies use to develop new film recipes. Like in a kitchen. This is what drives me crazy about the end oil and natural gas activists. Almost everything we use today is made from those products. If we end oil and gas we will be cavemen living is the woods with no electricity, no internet, no tv entertainment. Society would cease to exist.
@1:00 you either had not enough air or you were pulling too hard :) Your bubble collapsed on itself. Rookie move. Next time bump the screw up to 32 so you have more product to accept the air blown within... And, no gloves once reclaiming product, unless you want to lose fingers. Rollers and gloves never mix well,
Idk about blown molding. But blown film isnt that hard to learn. There is a learning curve. I work at a global plastic company. I do this on a much larger scale. But for level 1 training. It usually last 3 months. I did my level 1 training in about 2 or 2 and a half months.
