Usage of plastic is a part of our daily lives, and we can see plastic products everywhere from our homes to offices, malls, and parks. Plastic products are around in our environment, and still, many people among us do not know how these products get manufactured. Plastic manufacturing productivity is not dependent on the machines or employed concepts. It is also on required quality and quantity, for producing bigger target of products for large population, Plastic products manufacturer in Lahore especially.  They have to invest in more complex machinery and techniques. It is beginning to accept that it is now time to tackle the problems of plastic waste. It requires addressing the lack of management systems for proper waste. Thirty per cent of the whole world does not know how to access collection properly and waste disposal.

Plastic Manufacturing Methods

Modern plastic is made up of fossil fuels like petroleum or natural gas. But when new technology emerges, plastics are also being manufactured from renewable sources. Examples are cotton or corn. Plastic manufacturing is a very complex procedure. Following are the seven methods of manufacturing plastic at the industrial level.

Injection Molding

Today, 75 per cent of plastic products we see out there are accountable for the plastic injection moulding process.  To create plastic, manufacturers use mould or die made out of aluminium or stainless steel. Cavity and core sides are present in the mould and then placed into the injection moulding machine. Before being injected into the empty mould cavity, plastic material is being molten. Once it gets, cooled and complex plastic parts are ejected out of the mould under great hydraulic pressure. This method of manufacturing is very popular among companies. This is because it can produce plastic parts in thousands of numbers at once.

Rotational Molding

It is commonly known as roto-moulding. This method uses mould with a cavity side and a core. However, it follows a different process as compared to injection moulding. In the empty cavity, plastic material is poured and then heated inside an oven. When gravity makes it sure the plastic remains on the walls to build up the required right amount of thickness. The two axes constantly rotate mould. Before the tool gets opened, the part is allowed to cool.

Injection Blow Molding

With the injection blow moulding process, plastic manufacturers use gas pressure to force molten plastic t into the mould. It is commonly used to create plastic bottles. The material that used in this method is usually PET or PEEK because of clarity. These materials are known to be safe for consumers use. In addition, both plastic types are very easy to recycle, which is an advantage for manufacturing companies who intend to use plastic bottles.

Extrusions Blow Molding

This method uses parison, which is plastic in molten form like a balloon and placed into a dual piece calm type mould. Because of sealed mould, until it fills the empty mould cavity, parison remains inflated. The plastic quickly hardens when the sides are water-cooled and can easily be ejected. Creating plastic cups, plastic bottles, and small-sized plastic containers is the best method for a manufacturer.

Reaction injection Molding

To produce rigid plastic parts, reaction injection moulding is the best method to use.  The automotive industry is the most significant achievement of the RMI method commonly used to create plastic vehicles. Examples are dashboards, stepping boards, bumpers. This method uses thermosetting plastic that undergoes a chemical reaction. Therefore, inside the mould, that causing them to expand more and fill the mould cavity. Once the chemical reaction is complete, plastic parts take the final form. It is considered an expansive plastic manufacturing option. Reasons are the material and intensive labor.

Vacuum Casting

It is an ideal method to create plastic parts without any significant capital for tools and plastic material. To jumpstart this plastic manufacturing process, a 3D prototype of the product is enough. It is then placed into a sealed box with silicone. Once the model is removed, the cavity is formed that can be filled with plastic resin. To take out the air of the mould, vacuum pressure is applied. However, products made from this process are not durable, and after a few production processes, they can degrade.


This process is almost like vacuum casting; only expect one method in which plastic is placed over a die and heated until it’s become pliable. Then, the plastic material stretched on the surface.  To pull the sheet down until the final shapes come, vacuum pressure is constantly applied to it. You cannot expect high quality from this process. Because of low quality, the plastic bottle price in Pakistan will get low.

A Second Life For Plastic Waste

When the plastic waste recycles, generated and returning it into the manufacturing chain. Reduces the need to produce virgin plastics. It unlocks the waste economic value. Recycled plastic has been used for products manufacturing like furniture, clothing, and packaging. Plastics can be divided into two forms:

· Easily recycle

· Hard to recycle

Easily Recycled Plastic Manufacturing

Easily recycled plastics can be easily washed, ground into powder form, melted, and extruded into pellets ready for reheating, and a remolding process is known as mechanical recycling. PET plastic is an example. Plastic bottles manufacturers in Lahore can use this method of recycling to save the environment from hazards.

Hard to recycle Plastics Manufacturing

It is a process where the plastic polymer structure is changed and then converted into feedstock. It can replace materials like a virgin and be used in the production of plastic.  Examples are LDPE, polyethene fil, contaminated plastic such as unwashed food containers.

Six Actions for Plastic Ending Waste Properly

Following are the six action areas that advance trajectory towards the economy and ending waste in the environment. Plastic bottle manufacturers in Karachi should follow all the steps. Karachi is the biggest city of Pakistan we need to protect it:

Front-end Design

Products designing that can last long and easy to pair and can be recycled easily.

Access to Collection

Providing enabling convenient infrastructure and necessary waste recovery, preventing leakage into the environment.

Participation and Engagement

Sustainable practices like raising awareness and inspiring participation and clean up.


It is the first step of the recycling system, according to the waste type, wet or dry; non-recyclable or recyclable; paper, metal, plastic or glass. Sorting can be done in-home or at a formal waste management facility.


New advanced recovery and recycling methods of scaling solutions. It includes both chemical and mechanical recycling.

End Markets

From all the recycling methods, growing market demand for recycled materials.


We do not have any silver bullet solution for waste management. It is not about swapping from one single-use lifestyle to another one. Instead of this, we need to change our behavior to balance convenience and sustainability. For example, plastic products manufacturers in Lahore should use new techniques and easy methods to get high-quality plastic products.