Plastic bag production process:
Raw materials-film blowing-Printing-bag making-Packaging-products
1.Film blowing process:the process of making plastic bag film from plastic particles.The machine used is a fully automatic film blowing machine,which passes through the extruder,qualitative roll,corona roll and cooling roll.
2.Color printing process
Set the pattern as required and print it on the plastic film through intaglio printing
3.Bag making process:make the prepared film into the required shape.
What is the profit of producing plastic bags
Take the most common vest bags (convenience bags,handbags)in the market as an example:the film material is 2.0-2.5 yuan/jin,and the film material with a width of 18m can produce 300-500 bags (the thinner the material,the more the production),the cost is about 0.4-0.5 points/piece,and the market wholesale price is 0.8-1yuan,and the profit is 0.3-0.6 points/piece.If the daily output is 100000,the daily profit can reach 300-600 yuan.The bigger the bag,the higher the grade,and the higher the profit.Calculation method:buy 100-200 plastic bags of the same specification,weigh them,and calculate teh cost of each bag according to the raw material of 2.0- 2.5 yuan/jin.The gross profit is the price of plastic bags minus the cost.It is estimated that each ordinary bag can make a profit of 0.3-0.6 points,and the higher one is more than 1 point.For the production of ordinary convenience bags,due to the simple processing technology, the investment is relatively small,but the competition is relatively fierce,and the product profits are averaged.The process requirements for producing high-grade color printing bags are more complex,the technical contents is higher,and the investment is relatively more.The market competition is not sufficient,the product added value is high,and its price is often several times the cost.The low printing cost makes it unnecessary to consider the cost of raw materials in the production of printing bags,leaving a huge profit space for investors-making printing bags and making more money!
To set up a plastic bag processing plant,the site is about 200 square meters,which generally requires three-phase electricity,but most bag making equipment is equipped with frequency converters,which can use single-phase electricty.The equipment is a relatively large investment,which depends on the product.If you produce vest bags or vest bags,you need to purchase film blowing machines,heat sealing and cold (hot) bag cutting machines,punching machines,and granulators (it is recommended to purchase,and you can recycle and treat the leftovers by yourself).If the film processing of OPP,PE,PP and other sheet materials i smainly used to produce bead banding machines,film folding machines,slitting machines,and pay attention to the matching of products,practicality,stability,service life,cost performance,and after-sales service of the manufacturer when purchasing equipment.As the whole production line is a flow process,equipment matching is very critical.Many customers purchase equipment from different manufacturers,which is not only time-consuming and laborious,but also the size and function differences of products bring a lot of trouble to production.
