Before inventing the paper bag line, what we should consider is how many machines in the whole process, and how many original material can do how many bags, and what’s the price of the machine and material price.

Then we will compare the market price to calculate the item value. The paper bag making, need more than 3 type machines, like laminating machine, paper roll slitting machine, flexo printing machine, label attaching machine, paper bag making machine, and as you know we focus on the paper bag machine, we support hole punching, plastic film attaching, hot needing rotary, perforating and so on.

Even the 2019 newest KFC bag is from our paper bag machine. Here we would like to share about how to calculate the cost of the paper bag.

Sample bag             
Size(L*W*H)340*160*100 MM
Side glue

20 to 30 mm

Bottom coverage

Bottom coverage:  Gusset/2  +  10-25 mm

Size of paper


Weight80gsm*0.220725㎡ = 17.658g
MarkOne batch one thousand: 17.658kg

For example the kraft paper is USD 1500 per tone,
one batch one thousand is USD 26.487(17.658*1.5)

So the cost of paper in this size per bag: USD 0.026487