How to calculate the cost of vacuum bags.vacuum sealer bags for food

The sales price of plastic packaging bags is mainly composed of three parts: material cost, production loss, and the gross profit of the enterprise. That is, the quotation of soft packaging products=packaging material cost+production loss+the gross profit of the enterprise (due to fluctuations in raw material prices during different periods, only calculation formulas are provided and specific numerical statistics are not conducted.)

① BOPP material cost

Unit price per square meter: Unit price × density × Thickness/1000

Weight per square meter: per square meter × density × thickness

② Printing processing cost

The full plate printing ink is calculated to be 8g/㎡, and the full plate printing ink is calculated to be 128g/㎡ with white support.

Unit price per square meter: Unit price × Ink amount/1000

Weight per square meter: per square meter × density × thickness

③ CPP material cost

Unit price per square meter: Unit price × density × Thickness/1000

Weight per square meter: per square meter × density × thickness

④ Composite processing cost

Cost of dry adhesive amount=dry adhesive amount × Glue solid content price/1000

Solvent cost=solvent quantity × Price of adhesive solvent/1000

The loss is related to the order quantity, and the size of the three sided seal in this case is 250mm × 200mm, according to the layout, the repeated length that can be horizontally arranged is 200mm, and the number of horizontal rows is 2. The middle and both sides are left with a width of 10mm, which means that the required film width is 810mm, and the circumference of the plate is 500mm. That is, if the printing plate rotates every one cycle to print 4 bags, the required film length for 500000 bags is 62500m, because the production process of sealing bags on three sides is printing composite bag making, without the need for slitting.

① Printing loss

It is known that the new order test run loss of the production enterprise is 1500m, while the old order test run loss is 500m. In this example, based on the new order calculation, the loss rate is 1500/(62500+1500)=2.3%.

② Composite loss

The specific composite loss is about 1.5% for one composite, 3% for two composite, and 4.5% for three composite. This case is a composite, with a loss of approximately 1.5%.

③ Bag making loss

In production, if the number of bags produced is greater than 50000, the loss is about 1.5%, and if it is less than 50000, the loss is about 2%. In this case, the loss is 1.5% for 500000 bags

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