Non woven fabrics do not have any other attachment processing technology during production, and for product needs, material diversity and some special functions may be required.On the processing of non-woven fabric raw materials, different processes are generated according to different processing modes, such as the lamination and coating of non-woven fabrics, which are common processes.
Film covered non-woven fabric
The coating of non-woven fabric is achieved by heating plastic into a liquid using a professional machine, and then pouring this plastic liquid onto one or both sides of the non-woven fabric through the machine. The machine also has a drying system on one side, which can dry and cool the poured plastic liquid on this layer, resulting in the production of coated non-woven fabric.
Coated non-woven fabric
The coated non woven fabric is achieved by using a non-woven fabric laminating machine, which uses this advanced large-scale machine to directly composite the purchased roll of plastic film with the non-woven fabric material, resulting in the lamination of non-woven fabric.
The difference between film covered non-woven fabric and coated non-woven fabric
Both film covered non-woven fabric and coated non-woven fabric are developed to produce waterproof effects. Due to different production processes, the final effects produced are also not the same.
The difference lies in the different processing parts
The difference between non-woven fabric coating and film covereing lies in the different processing locations. Non woven fabric coating generally refers to the reinforcing material of non-woven fabric, which has waterproof properties through coating treatment, thereby avoiding the erosion of moisture on the product when using non-woven fabric in humid environments. And lamination is to cover a layer of film on the surface of non-woven fabric, mainly used to enhance the wear resistance of non-woven fabric, improve aesthetics and effectiveness.
Different application scenarios
Due to the different processing locations of non-woven fabric coating and lamination, their application scenarios also vary. Non woven fabric coating is generally used in situations that require waterproofing, such as garbage bags, fresh-keeping bags, etc; And lamination is mainly used in occasions where the appearance of bags needs to be protected, such as shopping bags, gift bags, etc.
The handling methods are also different
Non woven fabric coating is generally used by coating a waterproof material on the bottom of the bag, and then drying to form a coating. And lamination is processed using a laminating machine, which covers a layer of film on the surface of the bag and then undergoes hot pressing treatment to form lamination.
Different color and aging resistance
From the perspective of color. Coated non-woven fabric has obvious small pits on the surface due to the one-time formation of film and non-woven fabric. Coated non-woven fabric is a composite of finished products, with better smoothness and color than coated non-woven fabric.
In terms of anti-aging, the technical cost of anti-aging agent added to coated non-woven fabrics after plastic melting is too high in production. Generally, anti-aging agent is rarely added to coated non-woven fabrics, so the aging speed is faster under sunlight. Since the PE film used for peritoneal non-woven fabric has been added with anti-aging agent before production, its anti-aging effect is also better than that of coated non-woven fabric.
Conclution
In summary, the difference between non-woven bag coating and lamination mainly lies in the different processing sites, application scenarios, and processing methods. Non woven bag lamination is mainly used for waterproofing, while lamination is mainly used for aesthetics and wear resistance. When choosing non-woven bags, you should choose according to your actual needs.
Post time: Feb-25-2024