Plastic bags are a major part of everyday life. From receiving packaged shipments to grocery shopping, many of us are accustomed to using them. But, what goes into manufacturing different types of plastic bags? Plastic bag manufacturing involves more than what one might think. Knowing the process can help you determine the products that are quality made versus the products that won’t hold up as waste. Obviously, the plastic bag manufacturing process must be done in a shop using the right equipment. Despite this, these bags are quite easy to manufacture. Would you like to know the stages involved in plastic bag manufacturing? This post answers the same. Read on to know more.
With the following steps, let’s have a closer look at how plastic bags are made.
Step 1 – Raw Material Extraction: Extraction of raw material is the most important step in manufacturing plastic bags. Polythene is used to manufacture plastic bags. This material is derived from either refined oil or cracked natural glass. As these hydrocarbons are found underground, they must be extracted using the drilling wells. If leaks occur during the process, it not only disrupts the ecosystem but also leads to tragic consequences for human health and the environment. This extracted gas or oil is transferred through pipes to refineries where petroleum is divided into several densities. This will helps extract the right oil required for plastic production. This gas is heated to a high temperature and pressurized to separate pure polythene chains, which are later joined to form plastic resin pellets.
Step 2 – Film Extrusion: The process begins by providing plastic pellets from a hopper to the extruder barrel. An extruder heats the material to the extreme and melts it. Using the inside screw, an extruder pushes the molten polymer through the machine and a die, which controls the product thickness. Air pumped inside an extruder makes the evolving plastic into a bubble that travels in an upward direction for cooling down. Once the air is strained out and the bubble flattened, the film is cut into the appropriate shape and wrapped on a spindle.
Step 3 – Conversion from Film to Plastic Bags: In this step, the role of the film is unwrapped and cut into a desired size and shape depending on the commercial intent for the bag. This stage can also add special characteristics required to complete the plastic bags. The wheels are designed to create the gussets, dies care is used to cut out the handles, and most importantly seals get attached due to heat. Printing can be done once the bags have been converted.
Now, after reading this, you get detailed information on how plastic bags are made. Beware, you may find cheap plastic bags that pass off as quality plastic bags made of virgin material. However, they may not serve your purpose and simply add to the waste. So, to avoid this, it is important to employ reliable suppliers in the industry. ANS Plastic Corp has been manufacturing eco-friendly and biodegradable plastic bags for several years now. These bags utilize the oxy-biodegradation technique that helps convert plastic waste into eco-friendly biodegradable substances.