Types of Cellulose Films and Their Application Introduction

With the increasing global emphasis on environmental protection and sustainable development, governments around the world have been introducing stringent environmental regulations and policies to encourage and guide industries to reduce their reliance on fossil resources and shift towards the use of renewable, biodegradable eco-friendly materials. Driven by environmental policies and the push for sustainable development concepts, cellulose films, due to their natural origin and recyclability, have become ideal substitutes for many traditional plastic films. Against the backdrop of plastic restrictions and green packaging policies, their market demand and application fields are continuously expanding.

What is Cellulose Film?

Cellulose film is a film material made from natural cellulose as raw material, through chemical or physical modification methods such as dissolution, regeneration, and film formation processes. It has a series of advantages including renewability, biodegradability, good chemical stability, and controllable porosity. It is widely used in filtration, separation, biomedicine, environmental protection, packaging, and many other fields.

Main Types and Application Fields of Cellulose Films

Microcrystalline Cellulose Film

Microcrystalline cellulose film has properties like transparency, high toughness, high strength, and excellent barrier performance, making it a widely used material in the food packaging industry. Its dense structure effectively prevents the permeation of moisture and oxygen. Therefore, microcrystalline cellulose film is extensively used in food decoration in high humidity environments, decorative arts, and film capacitors.

Cellulose Acetate Film

Cellulose acetate film is a material that can better adapt to complex packaging conditions. It has good sealing properties, elongation, oil resistance, and moisture resistance. Thus, it has been widely used and promoted in the packaging applications of the food, pharmaceutical, and agricultural sectors, such as candy, pastry, and pharmaceutical outer packaging.

Sodium Carboxymethyl Cellulose Film

Sodium carboxymethyl cellulose film is widely used in biomedical materials. Its application range includes tissue engineering, artificial heart valves, sensing crystals, etc. Additionally, in the field of electronic screens, sodium carboxymethyl cellulose film can be used to manufacture touch screens, displays, panels, etc.

In summary, cellulose film is a very important functional material with a wide range of applications. In food packaging, cellulose film is green, environmentally friendly, aesthetically pleasing, heat-resistant, and has certain shrinkage and breathability, primarily used in series of products such as fresh-keeping films for fruits and vegetables and specialized cellulose films for meat products. In the pharmaceutical field, the use of cellulose films is stable, occupying a certain market share, such as used in specialized packaging materials for fully automatic single-dose dispensing machines. Moreover, cellulose film is transparent, soft, has good mechanical strength, is moisture-proof, and antistatic, making it an ideal material for fireworks packaging, a market that is very stable and continues to grow.