Plastic Bags - How's The Development Process?

Packaging continues to be the necessity of human kind from early here we are at storing, transporting, preserve foods, goods, products...The first time, people made the packets from animal skins, large leaves, vegetables to have their food nice and clean.

Within the war time, iron, steel can was invented to help keep food safe for soldiers. In daily existence, plenty of materials were place in use: paper, glass, wood to corn, aluminum...Using the dramatic innovation of technology, the interaction between individuals from different areas, different countries increase and need for buying and selling increases daily, packaging inside a most convenience strategy is necessary and vital useful reference. 

Plastic bag continues to be invented to satisfy that demand being an excellent solution. Just how plastic bags are created?

Plastic may come as a by-product of oil refining, and uses only 4% from the total world's oil production. It's a 'biogeochemical' manipulation of certain qualities of oil, into polymers, that behave 'plastically.' Plastic polymers are produced into 5 primary types, which, plastic bags are constructed with the kind referred to as Polyethylene. From polyethylene, resins are created and are available directly into plastic bag's production.

With special types for example food plastic bags, shopper plastic bags, luxurious plastic bags for famous label names as soft loop plastic handle bags, rigid plastic handle bags, drawstring plastic handle bags, trifold plastic handle bags, wave top plastic handle bags, etc 100% virgin resins are utilized to get the best quality bags: strong, smooth and nice appearance. Customers also require other film colours of plastic bags (blue, eco-friendly, orange, yellow, red...) to help make the bags look various and impressive.

That's the reason manufacturers will prove to add masterbatches (colour resins) to alter from transparent towards the specific colours. If customers require the bags at cheaper prices, manufacturers will put couple of percent of additive materials for example CaCO3 (calcium carbonate) or and recycle materials to lessen bag cost. Only at that situation, sometimes manufacturers will prove to add an additive known as impact modifier to create bags strong.

The first process is blowing film or known as extruding film. All of the materials is going to be put in extruding machine to create big plastic film roll. Within this steps, workers or technicians must control the bag rolls into smooth appearance.

The 2nd step is printing process generally employed for bags which a lot of companies could personalize the printing image using their emblem, brand, details about products...When getting orders with printing image, manufactures can create printing plates (printing cylinders) to place into printing machines. Images are examined into different colors each colour is going to be controlled by one worker when the bags need print many colors or printing images take time and effort.

The 3rd step is cutting and sealing process. The plastic rolls they fit into cutting workshop to really make it into different shapes and various handles. There are plenty of cutting machines available offered for various handles: T-shirt, die stamped, soft loop, patch handle, rigid, flat merchandise, etc

For that special kinds for example drawstring plastic handle bags, rigid plastic handle bags, soft loop plastic handle bags, they're usually needed some manual steps which cannot be implemented by automatic machine. In manual workshop, workers need to sew the handles in to the bags, putting the card board into gussets (customized to customer's requirement), showing up in the hole.