Which bag is better: polyethylene, Nylex or nylon? Most of us are indifferent to the bag we carry our purchases in, and there are few people who care about the details of the bag they carry their purchases in; But for you, a shopkeeper, restaurant owner, fruit seller, or a business manager who has to send customer orders to them. Choosing the right plastic bag directly affects the operating costs of any business and plays an important role in maintaining product quality, customer experience, and brand reputation. So you should choose a plastic bag from a professional’s perspective.
The biggest mistake is to think, “Plastic is plastic!” and decide only based on the price per kilogram and choose the cheapest. Packaging bags are all from the polyethylene (PE) family; but they differ in terms of molecular structure and grade of raw materials such as HDPE, LDPE, LLDPE, and each of these characteristics determines their final performance.
So there is no absolute best. The right choice should be based on the type of product, weight, moisture content, shipping route, and your budget.
Before we start choosing the best type of bag, you should know the types of plastics, because what is offered in the Iranian market as nylon and nylex are actually two main grades of a scientific material called polyethylene (PE) and they differ in their scientific definition. This inconsistency makes it difficult to choose Bag You may make mistakes and be misled.
Polyethylene (PE) is the scientific name for the material that is used as the main base for most plastic bags. It comes in three main grades: high-density polyethylene (HDPE), low-density polyethylene (LDPE), and long-chain low-density polyethylene (LLDPE), each with its own unique properties. Properties that ultimately determine how your bag will look, feel, and function.
High density polyethylene, or HDPE, has a denser, more linear structure. This structure makes the resulting film stronger, drier, and less flexible. In contrast, low density polyethylene (LDPE) has a more branched structure, which is why it has a softer texture, a clearer appearance, and greater flexibility. A more advanced version of polyethylene, called LLDPE, or linear low-density polyethylene, has high resistance to tearing and punctures and is used to package items that require greater durability.
But in the Iranian market, few people use these scientific names for plastic bags because two familiar words, Nylex and Nylon, have replaced them.
When a salesperson talks about nylon, they are usually referring to bags made from high-density polyethylene (HDPE). These bags come in the form of stirrup or banana-handled bags. They have a duller, stiffer, drier surface and make a distinct crackling sound when crushed.
But nylon refers to films and bags made from light or linear polyethylene (LDPE or LLDPE). These types of plastic bags are softer, clearer, shinier, have a more elastic feel, and make a softer sound when touched or crumpled.
The difference between Nylex and Nylon is not just in their names; these two types of bags differ in feel, appearance, function, and application. So, for any type of use, from home packaging to store use, you should understand these differences and choose the most economical and efficient option.
The choice between Nylex and Nylon is actually a choice between two different approaches, economic efficiency and the ability to carry high weight in a low thickness (which was the advantage of Nylex) versus having flexibility, better appearance and high resistance to point tearing (which was the advantage of nylon). Nylex and Nylon are both from the polyethylene family; but the difference in their molecular structure causes them to behave completely differently in practice and application.
It is important to understand these differences because they directly affect your efficiency, customer satisfaction, and most importantly, your bottom line. To understand the differences between Tylon and Nylex and make a better comparison, read the table below:
| Features | Nylex (HDPE) | Nylon (LDPE/LLDPE) |
| Base material | High-density polyethylene (HDPE) | Light polyethylene (LDPE/LLDPE) |
| Appearance | Dull, dull, dry and rough | Transparent, shiny, soft and flexible |
| Produced sound | Loud rustling sound when crumpled | Very low and soft sound |
| Weight bearing capacity | Very high weight capacity in low thickness | It needs more thickness to support the same weight. |
| Resistance to point/sharp tearing | Low (prone to tearing when in contact with sharp edges) | High (elasticity is more resistant to punctures) |
| Printable capability | Medium (printing effect is less due to opacity) | Medium (printing effect is less due to opacity) |
| Price | More economical (due to thinness and lower weight per unit of quantity) | More expensive (for similar strength, weight and price are higher) |
Now that the advantages and disadvantages of nylon and nylex have been identified, it is time to put the theoretical knowledge you have gained into practice and apply it to your business. Note that the careful selection of plastic bags not only manages your costs; it also directly affects the level of customer satisfaction and the preservation of product quality during transportation and handling; but for what use and which business is each type of bag suitable:
Given that in supermarkets and hypermarkets, the speed of work at the checkout and economic savings are very important, our recommended option for this category is the Nylex (HDPE) stand-up pouch. This type of bag is simple and practical. Nylex has high strength against weight and can withstand the weight of a wide range of items from light to heavy, increases the speed of packaging at the checkout and most importantly, it is the most economical option per bag and saves a large amount of volume, which will be significant in the long run.
Conditions in fruit and vegetable stores are different. Given that the products in these businesses are constantly in contact with moisture and sharp edges of stems or fruit skins, there is a possibility that the nylon will tear quickly. The best option for these types of businesses is clear nylon or LLDPE.
Thin nylon is easily torn when exposed to sharp edges of vegetable and fruit stems, citrus peels, or fruit moisture, exposing the product to damage; however, LLDPE nylons, which have high elasticity and better point resistance, are more durable and resistant to small tears. Also, the excellent transparency of nylon well displays the quality and freshness of the fruit.
In butchery, poultry and fishmongering, it is essential to use nylon or LLDPE with high thickness and strong stitching or preferably double-layer bags; because these types of businesses face two major challenges, leakage and tearing. Using nylon is more suitable for these businesses; because it has higher elasticity and more reliable stitching, it reduces the possibility of leakage of liquids, blood and fat to almost zero. Nylons with LLDPE grade or thicker are better choices that prevent leakage of liquids and unpleasant odors and do not tear.
Our recommendation for use in restaurants and fast food restaurants where takeout orders are packed in large volumes is thick nylon or reinforced bags; the strength of the bag is paramount. Carrying multiple packages of hot food at the same time, relatively rigid boxes, and fatty and heavy contents requires high stability and strength. Considering that nylon with the appropriate thickness has excellent stability in maintaining the balance of the packages and its cost is also more appropriate, it will be a better choice for this type of use.
For clothing stores, boutiques and luxury goods suppliers, visual quality and brand feel are a priority; therefore, using thick reinforced nylon mesh or polymailer bags are the best option for packaging goods in these categories. The transparency, softness and excellent printability of nylon (LDPE) allow for the implementation of luxurious and colorful designs. Also, having a higher thickness conveys a sense of value and quality to the customer and also allows for reuse of the bag, in this case, as a moving advertising billboard, highlighting the brand name.
In pharmacies and health food stores, customer privacy is a top priority. To protect the confidentiality of the contents purchased by the customer, thick, opaque nylon or matte nylon are better choices. Using matte nylon or thick nylon in dark colors shows your respect for the customer’s privacy and gives them a sense of security.
The safest and best choice for online stores and motorcycle courier shipping is LLDPE nylon with reinforced stitching. These types of nylons withstand the impacts of motorcycle transportation or the pressure caused by contact with rain or friction with other loads. LLDPE, which is specifically designed to improve resistance to tearing and punctures, is the safest choice to ensure the safety of goods over long distances and motorcycle shipping.
To avoid confusion in future purchases and ensure a choice that is both economical and keeps your customers happy, you don’t have to memorize scientific names all the time. Just keep the following seven key questions in mind when shopping, as your answers to these questions will determine the best type of polyethylene (nylon or nylon) to suit your needs:
To avoid making the wrong choice when purchasing plastic bags, you should be aware of the common mistakes that exist regarding these products. Many businesses make the wrong decisions and choose solely based on price, unintentionally causing customer dissatisfaction or incurring hidden financial losses. Some of the most common mistakes and how to avoid them are as follows:
1) The sameness of polymers: The biggest mistake some people make is that polyethylenes are all the same; but polyethylenes differ in molecular structure between HDPE Nylex and LDPE/LLDPE Nylon as well as in performance and end use. Nylex is strong but more brittle, while nylon is more flexible and softer.
2) Choosing based solely on the price per kilogram: Never estimate the final price of a bag based solely on the price per kilogram of polyethylene. Nylex is capable of producing in much lower thicknesses. So in this case, it is possible to offer more bags per kilogram. This may seem more economical at first glance; but if the bag tears, it causes damage to the product and leads to customer dissatisfaction. Always calculate the cost based on efficiency per unit of quantity and safety of transportation.
3) Using thin nylon for Items Wet: Nylex is dry in nature and easy to sew, which increases the risk of liquid and moisture leakage. Therefore, using thin and economical Nylex is not suitable for packaging materials such as meat, poultry, fish or wet vegetables. For packaging those items, nylon or LLDPE Use with reinforced stitching.
4) Ignoring the quality of stitching: Of course, all your efforts to choose the best polymer will be ruined by poor stitching. A substandard stitching (whether in nylon or Nylex) will be the weakest point of the bag and will cause your packaging to tear apart at the slightest pressure. So always buy from suppliers who have strong and consistent stitching standards.
We are in Nakhl Plast We have a mission beyond production! As consultants, we help you make the most accurate and optimal selection of plastic bags so that you can create the best plastic bag that is the customer’s last physical point of contact with your brand and the ultimate opportunity forConfirmationChoose the reputation and quality of your business.
Nakhl Plast’s product portfolio includes numerous products such as economical nylon stretch wrap (HDPE), which, with precise quality control over thickness uniformity and standard stitching, will be both the most economical choice for retailers and minimize the risk of sudden tears.
Transparent nylons andLLDPE LeakproofFor the food, protein, and fruit stores, and for clothing brands and luxury goods, we have produced thick, printable (LDPE) bags to the highest standard and quality to give you peace of mind in every way.
Contact Nakhl Plast’s sales team for advice on choosing the right grade and thickness and receiving a prototype that suits your application and budget.
Nylex is made from high-density polyethylene (HDPE) and is opaque, dry, and strong, easily supporting heavy loads. Nylon is made from low-density or linear low-density polyethylene (LDPE/LLDPE), is soft, transparent, and flexible, and is more resistant to point tears.
For the supermarket and hypermarket industry, HDPE Nylex is an ideal option because it has high strength, high weight capacity, is economical in price, and increases packaging speed.
For fruit and vegetable stores where there is a possibility of contact with sharp edges and high humidity, transparent LLDPE or LDPE nylon is the best option because it has high elasticity and better point resistance and packages fruits without damage.
In these industries, it is recommended to use high-thickness LLDPE or LDPE nylon with tight stitching to reduce the possibility of liquid leakage and tearing and to keep products hygienic and safe.
For restaurants and fast food, thick nylon or reinforced bags are suitable because packaging heavy and greasy ready-made foods requires high strength and makes it easy to carry takeout orders.
Yes, for boutiques and luxury goods stores, clear, thick LDPE nylon with high-quality printing capabilities enhances the visual appeal and sense of value of the product, and also allows for reuse.
To choose the right bag, you should consider the weight and nature of the goods, moisture content, shipping route, transparency and branding, budget, and sewing quality and thickness. The answers to these questions will determine the best option between Nylex or nylon.
No, choosing based solely on price can lead to customer dissatisfaction and product damage. It is better to calculate the cost based on performance, tear resistance, and transportation safety to be both economical and to maintain product quality.
