Here are the main criteria to consider and questions to ask when selecting plastic film for industrial packaging:
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The type of load:
What type of product are you wrapping? Is it a dry or wet product? What’s its size and weight? Select film thickness, width, and length according to the size and weight of your products. Also, take into account how smooth they are and possible sharp corners that could tear the film.
The type of plastic:
This depends on the nature of the product to be packed. Commonly used plastics include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), and polyethylene terephthalate (PET). Each has different properties in terms of strength, transparency, and flexibility.
Desired function:
What will your film be used for? Packaging, protection, heat retention, sealing, etc.?
Some films have specific properties that make them resistant to chemicals, UV, or heat. Others are more transparent. Some also have electrical conductivity properties.
Duration of use:
How long do you expect your film to last, whether in transit or in long-term storage?
Respect for the environment:
More and more plastic films are recyclable or biodegradable. Naturally, we advise you to opt for this type of product for obvious environmental reasons.
In industrial applications, several types of plastic film are used, depending on their specific properties and applications. Here are some of the types of plastic film commonly used:
Stretch film
Stretch film is a versatile material, often made from extruded polyethylene in one or more layers, depending on its intended use. It is known for its flexibility as it can stretch from 125% to 500% of its original length.
There are two main types of stretch film, depending on the extrusion technique used.
Advantages:
Disadvantages:
Applications:
Plastic film is a versatile product whose properties are largely influenced by the plastic of which it is made. Here are the main plastics used in the manufacture of plastic film:
Polyethylene (PE)
It is one of the most commonly used plastics in industry. It can be produced in single-layer or coextruded versions to meet a variety of needs. It shrinks at temperatures of around 150°C.
There are two types of PE: low-density polyethylene (LDPE) and high-density polyethylene (HDPE). PE film is generally 40 to 50 micrometers thick, but thinner versions are available, notably LDPE, which also has non-stick and anti-slip properties.
Advantages:
Applications:
The color of the plastic film is an essential aspect of the packaging. Each color has its own specific use. The color you choose will depend on the company’s needs, the type of products packed, and the environments in which these products are stored or transported.
Transparent film
This is particularly useful for identifying packaged products. In a warehousing or production environment, transparency means you can quickly see which products are contained on pallets without having to remove the film. This improves efficiency and inventory management.
Black film
This provides effective protection against light. It is therefore used to protect light-sensitive products (photosensitive materials, chemicals). In addition, black plastic film offers a degree of privacy, as it conceals the pallet’s contents.
White film
This is similar to black film in terms of light protection. It has the added advantage of effectively protecting products from UV rays. This feature is important for products that could be damaged by prolonged exposure to the sun.
Translucent blue film
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This film is commonly used in food packaging. The color blue is often associated with freshness and food safety, making it a popular choice for products intended for human consumption.
Other plastic film colors can be used to help identify products in a storage environment, allowing them to be distinguished at a glance and saving time during order picking. Red, for example, is one of these colors.
Cost can vary considerably depending on film type, thickness, and material. Here are some price estimates for the three main types of film:
Stretch film
Stretch film prices can range from 3 euros to over 100 euros per roll.
For film that is applied manually, prices range from 3 euros to over 50 euros, depending on the size of the roll. Less expensive film is generally suitable for light loads, while more expensive film is suitable for heavier loads or specific uses.
If you wish to apply your film with a wrapping machine, prices range from 30 euros to over 90 euros per roll.
Shrink film
Shrink film is available at prices ranging from 20 euros to over 400 euros per roll.
The price difference depends mainly on the width of the roll (prices increase with width) and the thickness of the film.
Examples:
Bubble wrap
Bubble wrap ranges in price from 3 euros to 100 euros for a roll approximately 1 meter long.
When it comes to choosing plastics bags, two options are often considered: polyethylene (PE) or polypropylene (PP) plastic. Although polyethylene and polypropylene bags are both plastics, they aren't typically used for the same purpose or products. Deciding which type of plastic packaging to use depends on your specific needs and application.
Polyethylene bags are translucent or opaque with a slight haze to them that allows you to see the items inside, although the details of the contents won't be clear. Polyethylene bags are ideal for packaging goods or items that require a high level of protection. Most industrial companies use polyethylene bags for packing and storing large, heavy items such as industrial machining parts.
The main characteristics of polyethylene bags include:
Polypropylene bags are crystal clear, making them ideal for food, the medical industry, or any other industry where consumers need to clearly see a product before making a purchase.
The main characteristics of polypropylene bags include:
Before deciding which is the best plastic bag to use, consider your specific business needs, your budget, and how you want to package and present your products to your customers.
Polyethylene has several advantages, including exceptionally high melting and freezing points. It is created by the polymerization of ethylene (or ethene) monomers. Polyethylene is made by the addition or the radical polymerization of ethylene (olefin) monomers.
Some of the properties and benefits of polyethylene bags include:
Characterized by a more transparent appearance and higher tensile strength, polypropylene bags offer a higher heat and chemical resistance than polyethylene bags. Polypropylene packaging can be made with rigid protective edges, making it ideal for wrapping solutions that prevent scratches to the product or contents. It also offers unmatched protection against moisture, vapors, and debris. Some of the specific properties and benefits of polypropylene bags include:
Polyethylene bags are used in a variety of domestic and industrial applications, including making pipes, bottles, cans, tubing, plastic film wraps, polythene grocery bags, and much more.
Polypropylene bags are commonly used for food wrapping, electronics manufacturing, and hospitals to keep contents free of contaminants. They are also used for packaging a vast number of consumer products in a wide range of industries and applications, including the automotive industry.
Polyethylene and polypropylene poly bags are undeniably the two most commonly utilized packaging solutions. When deciding the best option for your needs, it is crucial to know the advantages that each offer. If you need help choosing the right one, reach out to Universal Plastic today. Our experts will work closely with you to understand your application requirements. Later, we can customize these bags with your brand logo and text for branding and promotional purposes and offer them in the best wholesale prices. Contact us today to discuss your requirements and request a quote.
Polyethylene (PE) bags are more flexible, durable, and cost-effective, whereas polypropylene (PP) bags are stiffer, crystal clear, and more resistant to heat and chemicals.
Polypropylene bags are ideal for food packaging due to their clarity, moisture resistance, and compliance with FDA and USDA standards.
Yes, both PE and PP bags are recyclable, but availability depends on local recycling programs and bag type (HDPE, LDPE, etc.).
Yes, especially high-density polyethylene (HDPE) or linear low-density polyethylene (LLDPE) bags, which are highly durable and tear-resistant.
Absolutely. PP bags are crystal clear, making them perfect for retail or food products where visibility is important.
Polyethylene bags are generally more cost-effective, especially for industrial or heavy-duty use.
Yes. Both PE and PP bags can be custom printed with your logo, brand colors, and messaging.
Industries like manufacturing, logistics, agriculture, and hardware use PE bags for packaging, protection, and transport of parts or goods.
Yes, PP bags can withstand higher temperatures and are suitable for sterilization or heat-sealed packaging.
Consider your product type, packaging environment, budget, and visibility needs. You can also contact Universal Plastic’s team for expert guidance and custom recommendations.
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