Tea Bag Packaging Machine

I try to understand what kind of packing machine that I use cookies package. I tried a shrink wrapper, but it seems that it's just not my cup of tea. How do I get my package to resemble the famous bag Amous? http://www.rogueengineering.com/Merchant2/graphics/00000001/cookies_large.jpg
What kind of conditioner should I use?

I think of flat tubes is closer than we can achieve this kind of packaging at home. http://www.davpack.co.uk/Level2.aspx?Grp ...

I think that can be done in factories

its a pretty big machine