Detailed introduction of PP spunbond non-woven fabric:
1. Technical principles
The production process of PP spunbond non-woven fabric mainly includes four steps: melting, spinning, mesh laying, and reinforcement. Firstly, the polypropylene particles are heated to a molten state and then extruded through the nozzle to form fine filaments. These filaments are stretched during the cooling process to form filaments with a certain strength. Then, these long filaments are randomly laid on the web forming machine to form a uniform fiber web. Finally, through methods such as hot rolling, chemical bonding, or mechanical reinforcement, the fibers in the fiber web are bonded to each other to form a stable non-woven fabric structure.
2. Characteristics
*Non toxic and environmentally friendly: PP spunbond non-woven fabric uses polypropylene as raw material, which is non-toxic, odorless, and meets environmental requirements. It can be widely used in food packaging, medical supplies, and other fields.
*High strength: Due to the characteristics of spunbond technology, PP spunbond non-woven fabric has high tensile strength and tear strength, and can withstand large external forces without being easily damaged.
*Good breathability: The gaps between fibers make PP spunbond non-woven fabric have good breathability, suitable for occasions that require breathability, such as hygiene products, agricultural coverings, etc.
*Soft and comfortable: PP spunbond non-woven fabric has a soft touch, comfortable to wear, and does not irritate the skin, so it is commonly used in the production of clothing, shoe materials, etc.
Chemical corrosion resistance: Polypropylene material has good resistance to most chemicals, allowing PP spunbond nonwoven fabrics to be used in harsh environments.
3. Application scenarios
*Medical supplies: PP spunbond non-woven fabric can be used to make surgical gowns, masks, hats and other medical supplies because it is non-toxic, breathable, soft and comfortable, and easy to disinfect.
*Sanitary products: such as sanitary napkins, diapers, etc., PP spunbond non-woven fabric as the surface material can provide good breathability and comfort.
*Packaging material: PP spunbond non-woven fabric can be used for food packaging, shopping bags, etc. due to its environmental friendliness, biodegradability, and certain strength.
*Agricultural coverage: In the agricultural field, PP spunbond non-woven fabric can be used as plastic film, insulation blanket, etc., to increase soil temperature, maintain soil moisture, and inhibit weed growth.
*Industrial applications: such as filter materials, soundproofing materials, insulation materials, etc. PP spunbond nonwoven fabrics are widely used due to their unique structure and properties.
4. Industry standards and precautions
When producing and using PP spunbond nonwoven fabric, it is necessary to follow relevant industry standards and specifications. For example, for medical and hygiene products, they need to comply with relevant national health standards and safety requirements; For packaging materials, they need to comply with relevant standards for food packaging materials. In addition, during storage and transportation, attention should be paid to maintaining ventilation and dryness, avoiding direct sunlight and high temperature environments to prevent material aging or deterioration.
5. Product situation on the market
There are manufacturers on the market that produce PP spunbond nonwoven fabrics, which have various characteristics. Some manufacturers focus on the environmental performance of their products, using biodegradable materials or environmentally friendly production processes; Some manufacturers focus on the functional development of their products, such as adding special treatments such as antibacterial and anti mold properties; Some manufacturers are also committed to improving the production efficiency and quality stability of their products to meet the needs of large-scale production.
