BEGINI PROSES CARA PEMBUATAN KANTONG PLASTIK YANG BIASA KITA PAKAI

Summary

This video script delves into the ubiquitous yet controversial nature of plastic bags, highlighting their prevalence in daily life and their significant environmental impact. It takes viewers on a journey through a modern factory, detailing the process of plastic bag production from the melting of polyethylene resin pellets to the final packaging. The script also touches on various types of plastic bags, including those with handles and air-tight settings, and the impressive scale of production, with over a million plastic bags made daily.

Takeaways

• 🛍️ Plastic bags are ubiquitous in daily life, used for various purposes including food wrapping, shopping, and waste disposal.
• 🚯 Despite being a known environmental hazard, plastic bags are still widely used due to their low cost, durability, and a general lack of awareness about their impact.
• 🏭 The production process of plastic bags begins with the main raw material, polyethylene resin pellets, which are melted and mixed with low-density polyethylene in a large, closed mixer.
• 🔥 The mixture is then heated in an extruder to temperatures ranging from 356 to 465 degrees Celsius, forming a long tube-like film resembling an air-filled balloon.
• 📏 This plastic film is very long, with a thickness of minimal 2/10,000 of an inch and a circumference of 20 inches, and is gradually cooled down.
• 🔄 The film is then flattened by a rotating roll, making it easy to process, and the sides are cut to create different rolls of plastic.
• ♻️ Excess plastic strips are recycled back into the process, and hundreds of meters of plastic film are produced and rolled into specific rolls.
• 📦 A full roll contains enough film to produce 35,000 plastic bags and is then automatically filled and moved to another department.
• 🖨️ The next step involves printing text or images on the plastic bags using alcohol-based ink, with different colors applied by separate ink rolls.
• 🛠️ After printing, the plastic film is rolled up again, and the bag cutting process begins, with a machine producing 150 plastic bags per minute.
• 🔥 The edges of the bags are sealed with heat, and the bags are placed on two spindles, each holding 250 bags, creating air-tight sealing settings made from plastic cushions.
• 👜 In another part of the factory, plastic bags with handles are made, with heated machines shaping the sides and punching machines creating the handle holes.
• 📏 The bags are then sealed and cut at a 32-degree angle, and in another production area, bags for packaging other products are made, with one end sealed and a machine creating holes for air release when filled.
• 🏗️ At this stage, a stamp cuts the handle holes, and the bags are automatically cut and sealed according to the required size, with the factory producing 8 types of bags, totaling over one million plastic bags each day.

Q & A

What is the main issue with plastic bags in everyday life?

Plastic bags are a significant environmental problem causing pollution both on land and in the ocean due to their non-biodegradable nature.

Why are plastic bags still widely used despite being harmful?

Plastic bags are still widely used because they are cheap, durable, and there is a lack of awareness about their environmental impact.

What is the primary raw material used in the production of plastic bags?

The primary raw material used in the production of plastic bags is polyethylene granules, also known as resin pellets.

How is the polyethylene resin mixed during the production process?

The polyethylene resin is melted and mixed with low-density polyethylene in a large closed mixer to create a homogeneous material.

What temperature range is used to melt the polyethylene resin in the extrusion process?

The melting process uses a temperature range between 356 degrees Celsius and 465 degrees Celsius.

What is the shape and size of the polyethylene film produced after the extrusion process?

The polyethylene film is produced in the shape of a long cylindrical tube resembling an air balloon, with a length of several tens of meters, a minimum thickness of 2/10,000 inches, and a circumference of 20 inches.

How is the plastic tube cooled down after being formed?

The plastic tube is cooled down gradually in a controlled manner during the production process.

What happens to the excess plastic strip during the bag-making process?

The excess plastic strip is removed and recycled back into the process.

How many plastic bags can be produced from one full roll of plastic film?

One full roll of plastic film, weighing 348 pounds, can produce up to 35,000 plastic bags.

What type of ink is used for printing on plastic bags, and how is it maintained?

Alcohol-based ink is used for printing on plastic bags, and it is circulated continuously to maintain its viscosity.

What is the production rate of the machine that cuts and seals the plastic bags?

The machine can produce 150 plastic bags per minute.

How does the factory manage the production of different types of plastic bags?

The factory produces different types of plastic bags, such as those with handles, printed bags, and packaging bags, using various machines and processes tailored to each bag's specific requirements.

What is the total daily production capacity of the plastic bag factory mentioned in the script?

The factory produces over one million plastic bags daily across 8 different types.