{"id":3489,"date":"2025-09-22T14:40:14","date_gmt":"2025-09-22T14:40:14","guid":{"rendered":"https:\/\/bestypack.com\/?p=3489"},"modified":"2025-11-27T14:00:29","modified_gmt":"2025-11-27T14:00:29","slug":"what-are-the-differences-shrink-film-vs-bopp-film","status":"publish","type":"post","link":"https:\/\/bestypack.com\/fr\/blog\/what-are-the-differences-shrink-film-vs-bopp-film\/","title":{"rendered":"What Are The Differences? : Shrink Film vs BOPP Film"},"content":{"rendered":"

What is shrink film?<\/h2>\n\n\n\n

Shrink film is a very common plastic packaging material. It is made from a versatile polymer, usually POF(Polyolefin shrink film<\/a>), PVC, or PE<\/strong>, which shrinks tightly when heated and then covers the product tightly.<\/p>\n\n\n

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\"anti-fog-POF-shrink-film-2\"
anti-fog-POF-shrink-film-2<\/figcaption><\/figure>\n<\/div>\n\n\n

Manufacturing process:<\/strong> The production of shrink film usually involves a six-step process. The first step is polymerization. In which ethylene is polymerized under high temperature and pressure or with a catalyst to obtain polyethylene. The polyethylene is then extruded through a die in a molten state. Films can be formed in monolayer or multilayer structures. Shrink films with different structures will have different properties. The third step is cooling. The extruded film is cooled and cured. The fourth step is Orientation, where the film is Transverse Stretching in both longitudinal directions. Bi-directional stretching changes the structure of the shrink film. It gives the shrink film better strength and transparency. The fifth step is to reheat the shrink film to a specific temperature and then cool it to set the shape. Finally, the film is cut to the required width and wound into rolls.<\/p>\n\n\n\n

Application:<\/strong> Shrink film<\/a> is mainly used for product packaging; it can be used to package food, cosmetics, electronic products, books, and so on. It has good transparency and tear resistance and can provide good protection. It is also used in the industrial and construction fields.<\/p>\n\n\n\n

What is BOPP film?<\/h2>\n\n\n\n

BOPP film is a bi-oriented polyethylene film. It has excellent durability and strength. It also has very good transparency.<\/p>\n\n\n\n

Manufacturing process: <\/strong>
The raw material is first fed into the extruders. The raw material is heated to a molten state of 210-235\u00b0C<\/strong> and extruded to form a foil. The foil is then fed to the Chill rolls and immersed in water for cooling. Next, the film is Transverse and Longitudinal Stretching in the machine. Finally, it is either treated or flame-treated. Depending on the requirements, the surface can be processed in different ways.<\/p>\n\n\n\n

Application:<\/strong>
BOPP Film Performance is excellent and is widely used in various industries. In the food packaging industry, it can be used to package food and beverages. It has excellent clarity and transparency and is also suitable for labeling. The surface is smooth and suitable for printing. Its high strength High Barrier Property is also used to package medical supplies.<\/p>\n\n\n

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\"Heat-resistant
Heat-resistant BOPP film<\/figcaption><\/figure>\n<\/div>\n\n\n

Shrink Film vs BOPP Film: A Comparison<\/h2>\n\n\n\n

Similarities: <\/strong>
Shrink and BOPP films<\/a> are both made from polypropylene polymers. They have High transparency and can display products well. Good barrier properties. It can isolate water vapor and oxygen well. Stable and durable.<\/p>\n\n\n\n

Differences:<\/strong>
Shrink film shrinks when heated and tightly wraps the product. BOPP film is bi-directionally stretched during production, with high strength, tear resistance and toughness . BOPP film has excellent thermal stability and will not shrink.
Shrink film is suitable for use in single products that need to be tightly wrapped<\/strong>. For example, CDs<\/strong>, etc. BOPP films are used more in areas such as food and snacks.<\/strong>
BOPP film has better tear resistance, stretch resistance, and shrinkage resistance than shrink film<\/strong>. BOPP film does not shrink under heated conditions and can be used for precise and complex printing needs. Shrink film shrinks when heated. So you need to calculate the amount of shrink film to be used in advance when packaging products.<\/p>\n\n\n\n

Price difference: <\/strong>
Shrink film is cheaper for the same thickness.Less initial investment. But BOPP film has high strength and good protection, which can reduce the risk of damage during transportation<\/strong>. BOPP film may be more economically beneficial in the long run.<\/p>\n\n\n\n

Environmental impact:
BOPP film can be recycled<\/strong>. Shrink film contains PVC, which releases chlorine gas when burned, which is more polluting to the environment. Neither of them is biodegradable. However, today the industry has introduced biodegradable BOPP. BOPP films are more environmentally friendly.<\/p>\n\n\n

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\"Transparent
Transparent BOPP film<\/figcaption><\/figure>\n<\/div>\n\n\n

How to choose shrink film and BOPP film<\/h2>\n\n\n\n

When choosing between shrink film and BOPP film<\/strong>, you need to understand the specific needs.<\/p>\n\n\n\n