Cling Film: An Essential Solution for Growing Food Packaging Needs
Cling Film: An Essential Solution for Growing Food Packaging Needs
With the arrival of the New Year, the demand for food storage and packaging is gradually increasing. As an indispensable packaging material in daily life, cling film has attracted more and more attention. Here, we will introduce to you the working principle, common types and materials of cling film, and focus on analyzing the advantages of PVC material as cling film.
Preserve Freshness
Extend the shelf life of fruits, vegetables, and cooked food.
Air Isolation
Prevent food from oxidizing or spoiling.
Odor Prevention
Cover leftovers to avoid cross-odors in the refrigerator.
Portion Storage
Pack small portions for convenient storage and use.
WORKING PRINCIPLE
Cling Film helps extend the shelf life of food through its unique material properties. Its working principle mainly relies on the adhesion and breathability of the membrane.
Adhesion
Cling film has a moderate adhesive strength, allowing it to tightly seal food surfaces, preventing air and bacteria from entering. This effectively slows down oxidation, helping to preserve food freshness.
Breathability
Modern cling film is designed with controlled breathability, enabling proper airflow to maintain optimal humidity and temperature, thus preventing spoilage caused by excessive dryness or moisture.
Waterproof and Insulating
Most cling films provide a protective barrier against external moisture, safeguarding food from contamination while preserving its internal moisture to maintain freshness
COMMON TYPES & MATERIALS
There are many different types and materials of cling film suitable for different uses. Depending on the material, plastic wrap can be divided into the following main types:
PVC cling film
PVC cling film is one of the most common types of cling film. It has excellent transparency and good adhesion, and can wrap food well. Due to the characteristics of PVC itself, it is not easy to tear and has good ductility, and is widely used in household and commercial purposes.
PE cling film
PE cling film is made of polyethylene material and has good safety and environmental protection. It is suitable for refrigerated and frozen food packaging, and performs well especially when heated by microwaves. PE cling film also has excellent elasticity and temperature resistance, but its transparency is lower than PVC.
PO cling film
Compared with PVC and PE cling film, polyolefin cling film is more environmentally friendly, does not contain harmful substances, and is suitable for long-term use. It has good moisture resistance and oxidation resistance, but the price is relatively high.
PLA cling film
Polylactic acid cling film is a biodegradable and environmentally friendly material. Its main characteristics are that it is degradable, non-toxic and harmless, and is suitable for more environmentally friendly food packaging fields. However, it is more expensive and has poor high temperature resistance.
ADVANTAGES OF PVC MATERIAL
As one of the most common cling film materials, PVC cling film occupies an important position in the market with its excellent performance. The following are several significant advantages of PVC material as cling film:
Superior Adhesion and Wrapping Performance
One of the standout features of PVC cling film is its exceptional adhesion. With strong self-adhesive properties, it can securely adhere to the surface of food without the need for additional adhesives, ensuring a tight seal. This adhesion prevents air from easily reaching the food surface, effectively minimizing the risk of bacterial contamination and helping to preserve the food's freshness.
Excellent Transparency and Gloss
PVC cling film offers outstanding transparency and gloss, making it ideal for both food preservation in home kitchens and display packaging in retail environments. Its high clarity allows consumers to clearly view the contents, enhancing the visual appeal of the food.
High Stretchability and Flexibility
PVC cling film offers excellent stretchability, allowing it to cover a larger surface area without tearing. This makes it highly versatile, capable of wrapping items of various shapes and sizes, including fruits, vegetables, and leftovers, with ease.
Excellent Moisture Resistance and Insulation
PVC cling film offers strong moisture protection, preventing both water loss and external moisture entry, which helps maintain food's freshness. Additionally, it effectively blocks odors and contaminants, ensuring food is protected from external pollutants.
Cost-Effective and Accessible
PVC cling film offers lower production costs compared to other materials, making it an affordable option widely used in households and the food industry. Its competitive price meets the market demand for cost-effective solutions, making it a popular choice among consumers.
As the demand for food packaging grows, cling film has become an essential, cost-effective solution in both homes and businesses. Recently, the production and export of plastic wrap from Shenzhen World Packing Industrial Limited have increased. PVC cling film remains a top choice due to its excellent transparency, adhesion, and cost-efficiency. While its environmental impact is a consideration, its advantages in everyday food packaging are undeniable. Selecting the appropriate material based on specific needs and applications can better preserve food freshness and taste.
