Non woven fabrics do not have other attachment processing techniques during production. In order to ensure the diversity and special functions of the materials required for the product, special processing techniques are applied to the raw materials of non-woven fabrics.
Different techniques have been developed based on different processing modes, resulting in varying effects.
Film covering and laminating are common processing techniques for non-woven fabrics, with the aim of making them waterproof.
Production process
Laminated non-woven fabric
It is a composite material that applies lotion adhesive on the surface of non-woven fabric wool embryo, and then through drying, high temperature treatment, cooling and other processes, combines the non-woven fabric embryo coated with adhesive and polyethylene film, so as to strengthen its waterproof, anti pollution performance and tensile strength.
Coated non-woven fabric
It is a professional machine that heats plastic rice into liquid, and then pours this plastic liquid onto one or both sides of non-woven fabric through the machine. One side of the machine has a drying system that can quickly dry and cool the poured plastic liquid layer, and finally produce coated non-woven fabric. It serves to enhance, thicken, prevent moisture, water, and oxidation.
The difference between non-woven film coating and laminating lies in the production technology and raw materials, and the basic principles of appearance and function of the produced products are the same.
Difference between film coating and film coating
1. Production process
The laminated non-woven fabric is produced by compounding the already produced PE film and non-woven fabric in high-temperature equipment.
Coated non-woven fabric uses equipment to melt plastic and spray it on the surface of non-woven fabric, which has the advantages of fast production speed and low cost.
2. Color and appearance
Laminated non-woven fabric is a composite product with superior smoothness and color compared to laminated non-woven fabric.
Coated non-woven fabric has obvious small holes on the surface due to the one-time molding of the film and non-woven fabric.
3. Aging rate
Pe film coated non-woven fabric is added with anti-aging agent before production, so anti-aging effect is better than coated non-woven fabric.
Coated non-woven fabrics have been produced, and the technical cost of adding anti-aging agent after plastic dissolution is too high. Generally, coated non-woven fabrics rarely add anti-aging agent, and aging speed is fast in the sun.
4. Physical properties
Coated non-woven fabric has good waterproof performance, tensile strength, and scratch resistance, but its breathability is relatively poor due to the presence of the coated film.
Coated non-woven fabric also has good waterproof performance and tensile strength, as well as better breathability and flexibility, making it easier to process into various shapes.
5. Thickness
The coating is relatively thick, usually between 25-50 microns in thickness.
The coating is relatively thin, with a thickness generally between 5-20 microns.
Overall, although both belong to non-woven fabrics, there are certain differences in their application fields due to differences in manufacturing processes and physical properties between laminated non-woven fabrics and laminated non-woven cloth.
Common film materials
Common film materials include:
1. Polyethylene (PE): Polyethylene is a commonly used film material that has good transparency, flexibility, and waterproof performance. Polyethylene film is commonly used in fields such as food packaging and pharmaceutical packaging.
2. Polypropylene (PP): Polypropylene is another common coating material that has high strength, water resistance, and barrier properties. Polypropylene film is commonly used in fields such as tobacco packaging and stationery packaging.
3. Polyester (PET): Polyester is a synthetic resin that is resistant to high temperatures and wear, and can be used as a film material for coated paper. Polyester film has excellent mechanical and optical properties and is commonly used in fields such as electronic product packaging and labeling.
4. Nanocomposite film: By adding nanomaterials (such as zinc oxide nanoparticles, silica, etc.) to traditional film materials, the physical properties of the film can be improved, such as enhanced barrier properties, antioxidant properties, and antibacterial properties, thereby improving packaging quality.
Secondly, there are also other materials such as polyvinyl chloride (PVC), biaxially oriented polypropylene film (BOPP), PEVA film, aluminum plated film, frosted film, etc.
Packaging Application
Laminated non-woven fabric has gradually entered the packaging industry as a new environmentally friendly packaging material since 2011. It has a variety of styles and exquisite workmanship, and its products are sold well throughout the country and around the world. The main manufacturers are in Guangzhou and Wenzhou.
Laminated non-woven fabric is widely used in packaging, decoration and other industries, such as shopping bags, shoe bags, storage products, home textiles, jewelry, cigarettes, wine, tea and other high-end gift packaging environmentally friendly materials.
The product comes in a variety of colors, bright and fashionable! It is a perfect replacement for traditional PU products, with better cost-effectiveness!
There are dozens of patterns available on the market for laminated and embossed non-woven fabrics, including grid pattern, bark pattern, small hole pattern, pinhole pattern, rice pattern, mouse pattern, brushed pattern, crocodile pattern, stripe pattern, mouth pattern, dot pattern, cross pattern, and so on.
Laser non-woven fabric has a bright color and high-end texture, which is deeply loved by the market! At present, it is widely used as a key packaging material in industries such as home textiles, tobacco and alcohol, cosmetics, eco-friendly bags, branded clothing, jewelry, gifts, brochures, decorative products, etc.
Medical and Health Applications
Laminated non-woven fabric is widely used in the medical and health products industry due to its better breathability and softness than laminated non-woven fabric. Common products include disposable isolation gowns, bed sheets, duvet covers, hole towels, shoe covers, toilet covers, etc.
Composite PE breathable film is commonly used in protective clothing, pet pads, breast pads, surgical postpartum pads, medical bed sheets, diapers, personal care products, etc.
The manufacturers are mainly concentrated in Shandong, Zhejiang, Jiangsu, Guangdong, Hubei, Fujian and other places.
Composite non-woven fabric performance
Coated non-woven fabric, laminated non-woven fabric, laser non-woven fabric, high gloss non-woven fabric, and matte non-woven fabric are all composite processes, most of which are composite two-layer fabrics.
PE coated non-woven fabric can be subjected to various composite treatments on non-woven and other fabrics, such as coating treatment, hot pressing treatment, spray coating treatment, ultrasonic treatment, etc. Through composite treatment, two or more layers of materials can be combined together.
The high-quality performance of composite non-woven fabric is the best choice for industrial non-woven fabric:
1. Superb wear resistance and barrier properties;
2. Non toxic, antibacterial, and corrosion-resistant;
3. Good breathability and waterproof performance;
4. Has high levels of stretchability, tear strength, and good uniformity;
5. Excellent processing performance and thermal stability;
6. No need for dyeing, more environmentally friendly, and higher color fastness.
Dongguan Liansheng Non woven Technology Co., Ltd. was established in May 2020. It is a large-scale non-woven fabric production enterprise integrating research and development, production, and sales. It can produce various colors of PP spunbond non-woven fabrics with a width of less than 3.2 meters from 9 grams to 300 grams.
Post time: Nov-30-2024