What is PE ? what is PE coated paper ?
PE, derived mainly from petroleum cracking, is a petrochemical product widely utilized worldwide for manufacturing plastic bags, plastic bottles, food packaging, and food containers. In the case of paper cups, we commonly employ LDPE plastic particles as a coating to confer waterproof properties and enhance strength. LDPE represents one variant of PE. However, it is important to note that LDPE is not biodegradable or compostable. While LDPE can be recycled, the associated costs tend to be relatively high. To illustrate, if we submerge a paper cup in alcohol for 3-5 minutes until the paper fibers become soft, it becomes possible to separate a thin LDPE film.
PE coated paper incorporates a layer of polyethylene (PE) on either one or both sides of the paper. This coating is applied through an extrusion process, wherein a molten PE layer is extruded onto the paper surface and subsequently cooled to form a solid and even coating.
Applications of PE coated paper:
In our everyday lives, we frequently encounter a wide range of paper products, including paper cups, paper bowls, wrapping paper, and disposable tableware. Many people may wonder how paper cups can hold liquid without leaking. Upon closer examination, we notice that the inner surface of these paper cups appears reflective and feels smooth to the touch. This is because they are made from PE coated paper.
Here are some common applications of PE coated paper:
Food Packaging
Paper coated with polymers is extensively used in the food packaging industry, especially for applications requiring moisture and grease resistance. This includes paper cups, paper salad bowls, paper soup cups, paper lids, disposable food boxes, and bags.
Medical Packaging
Polymers coated on paper find applications in the medical packaging sector, such as for medical devices, surgical supplies, and pharmaceutical products.
Labels and Stickers
Polymers coated on paper are utilized in the production of high-quality labels and stickers. These papers can have a matte or glossy finish, depending on the specific application.
Coated Papers for Printing
PE-coated paperboard is suitable for printing applications that demand a high-quality, glossy finish. Such papers are commonly used for printing brochures, magazines, and other promotional materials.
Specialty Papers
Polymers coated on paper are employed in the production or design of specialty papers. These papers find use in making water-resistant maps, construction plans, outdoor signage, and printing materials like magazines, flyers, and promotional items.
Wrapping Paper
Polymers coated on paper are utilized for producing moisture-resistant wrapping paper and other environmentally durable options. Different samples of polymer-coated paper can be tested to determine the best fit for specific business needs.
Textiles
Polymers coated on paper can be used in the production of textiles, including clothing and other wearable items. The resistance provided by the coated paperboard lends excellent qualities to textiles designed for industrial use.
Gift Wrapping
Polymer-based papers are used for gift wrapping and packaging. The packaging industry benefits greatly from the aesthetic appeal offered by these paper types, making them ideal for special gifts and packages.
Wallpaper
Polymer-coated papers serve as durable and washable wallpapers. They are often chosen for office decoration with branded materials due to their high surface homogeneity, which enhances the visual appeal of walls.
Bookbinding
Polymer-coated paper is employed in bookbinding to achieve a smooth and glossy surface.
Art and Craft
Polymer-coated papers find use in various art and craft applications such as scrapbooking, origami, and paper folding.
Retail Packaging
Polymer-coated papers are used in retail packaging for various products, including cosmetics, toys, and electronics. They allow for custom box designs with contact angle measurements that perfectly fit the products, preventing damage during transit.
Disposable Tableware
Polymer-coated papers are used in the production of disposable tableware such as plates, bowls, and cups.
What Are the Advantages of Utilizing PE-Coated Paper?
PE-coated paper, which consists of a layer of polyethylene, has gained popularity as a preferred choice for food packaging and labeling. Its widespread adoption can be attributed to the numerous benefits it offers compared to uncoated paper materials. Here are some key advantages of using this type of paper for packaging and printing:
Excellent Water Resistance
The PE coating acts as a reliable barrier against moisture, preventing the paper from becoming damp and weak. This makes it an ideal choice for packaging food items that need protection from moisture, such as baked goods, snacks, and frozen foods.
Effective Grease and Oil Resistance
The polymer coating serves as a barrier against grease and oil, preventing food staining and contamination. This makes it well-suited for packaging greasy or oily foods, including fried foods and fast food products.
Secure Heat-Sealing Capability
Polymer-coated paper can be heat-sealed, providing a secure and airtight seal that preserves the freshness and flavor of the food. Heat sealing also ensures tamper-evident packaging, guaranteeing the safety and quality of the food. This property makes PE-coated papers excellent barriers against tampering.
Chemical Inertness
The PE coating exhibits relative chemical inertness, meaning it does not react with the food or other substances it comes into contact with. This makes it a safe and dependable material for food packaging and labeling. Polymer-coated paper options offer excellent barrier properties against chemical reactions from food.
Flexibility
PE-coated paper samples offer flexibility in terms of moisture, grease, and tamper resistance. Even with a thin coating, polymer-coated paper can provide optimal results for packaging needs.
Branding and Printability
The smooth surface of the paper allows for high-quality branding and marketing prints. Food manufacturers can create custom packaging that sets their products apart from competitors. Unlike plastic coatings, polymer-coated paper types enable quality branding for food companies.
Overview of Global Polyethylene Production Capacity Distribution
Polyethylene production capacity has seen steady growth since 2010, driven by the ongoing development and expansion of the industry. By 2022, the global market volume of thermoplastic polyethylene reached approximately 110.13 million metric tons. It is projected to further increase to around 135.08 million metric tons by 2030.
Here is a general overview of the distribution of polyethylene production capacity across the globe:
North America
North America, particularly the United States, holds a significant share of polyethylene production capacity. This is primarily due to the availability of ample feedstock, such as ethane derived from shale gas. Several major polyethylene producers are based in the United States.
Middle East
The Middle East region, including countries like Saudi Arabia, Qatar, and the United Arab Emirates, has emerged as a major hub for polyethylene production. These nations have access to vast reserves of natural gas and petroleum feedstocks, which are essential for polyethylene manufacturing.
Asia-Pacific
The Asia-Pacific region, including China, India, and Southeast Asian countries, has witnessed substantial growth in polyethylene production capacity. This is driven by the increasing demand for plastics across various industries, including packaging, automotive, construction, and consumer goods.
Europe
Europe also maintains a notable presence in polyethylene production, with several countries contributing to the overall capacity. Key producers in the region include Germany, France, and the Netherlands.
Other Regions
Other regions, such as South America and Africa, have a smaller share of global polyethylene production capacity. However, there have been investments and developments in these regions to meet the growing local demand.
It's important to note that the distribution of polyethylene production capacity can evolve over time due to factors such as market dynamics, investments, and changes in feedstock availability.