Filament Spunbond Nonwoven Fabric
Product Description
Changshu Yongdeli Spunlaced Nonwoven Fabric Co., Ltd. has been deeply engaged in the nonwoven fabric industry for many years. By pursuing technological innovation with dedication and strictly controlling product quality, the company has established a good reputation in the field of spunlace nonwoven fabrics. Now, relying on a mature production system and a professional technical team, the company has further expanded its product range and launched filament spunbond nonwoven fabrics. With unique process advantages and excellent product performance, these fabrics have become preferred materials in multiple industries. The following will provide a comprehensive analysis of this high-quality product from the perspectives of process flow, product advantages, core features, weight range, and applicable markets.
I. Process Flow of Filament spunbond Nonwoven Fabric
The production of filament spunbond nonwoven fabric is a precise process that integrates polymer material processing and hot rolling molding technology. Changshu Yongdeli Spunlaced Nonwoven Fabric Co., Ltd. strictly follows standardized production processes, monitoring every stage from raw materials to finished products to ensure stable quality of each batch. The specific process is as follows:
Raw material selection and formula design: The company selects high-quality polymer chips as raw materials, including polypropylene (PP) and polyethylene terephthalate (PET), etc. The technical team designs scientific raw material formulas based on the performance requirements of the products (such as strength, softness, heat resistance, etc.), for example, by adjusting the proportion of different polymers or adding functional agent (such as anti-static agents, antibacterial agents), to give the products special properties, laying the foundation for subsequent production.
Melt spinning: The raw material chips are first sent to a screw extruder, where they are melted at the set temperature (PP raw materials are usually 200-230℃, PET raw materials are usually 260-290℃). Then, the molten material passes through the spinneret in the spinning component and is extruded at high speed to form filament. The number and size of the holes in the spinneret are precisely designed according to the weight and fiber fineness requirements of the product to ensure uniform fiber diameter and compliance with strength standards.
Air flow stretching and web formation: The extruded fibers are stretched under the action of high-speed air flow. The air flow speed can be adjusted according to the requirements of the fiber fineness to fully stretch the fibers and enhance their mechanical properties. The stretched fibers are guided by the air flow and evenly spread on the web forming roller to form continuous, fluffy, and uniformly thick fibers. During the web formation process, the company precisely controls the web forming roller speed and air flow size to ensure uniform weight and structural stability of the fiber web, preparing for subsequent heat pressing reinforcement.
Hot rolling reinforcement (core process): This is the key step that distinguishes filament hot-rolled nonwoven fabric from other nonwoven fabric processes. The formed fiber web is conveyed to the hot rolling machine, which consists of two heating rollers. The roller surface can be designed as a smooth surface or with specific patterns. Under the set temperature (usually 120-180℃, the specific temperature is adjusted according to the type of raw material), pressure (generally 5-20 MPa), and speed, the fibers in the fiber web melt at the contact points due to heat pressing, cool down to form a stable net structure. The technical staff will precisely control the heat rolling parameters according to the strength and hand feel requirements of the product, for example, using a pattern roller to increase the breathability and three-dimensionality of the product, and using a smooth roller to improve the flatness of the fabric surface.
Cooling and shaping: The spunbond nonwoven fabric is at a high temperature and needs to enter the cooling device immediately. Through cold air cooling or contact cooling by cooling rollers, the temperature of the nonwoven fabric is rapidly reduced to room temperature to ensure structural stability and avoid problems such as shrinkage and deformation during subsequent processing or use. During the cooling process, the temperature and flatness of the nonwoven fabric are monitored in real time to ensure that the cooling effect meets the standards.
Post-treatment processing: According to the individualized needs of customers, the company will conduct post-treatment processing on the cooled nonwoven fabric. Common post-treatment processes include: softening treatment (by spraying softening agents or through mechanical softening, enhancing the product's feel), anti-static treatment (applying anti-static agents or conducting plasma treatment to reduce static electricity accumulation on the fabric), antibacterial treatment (adding antibacterial agents to inhibit bacterial growth), hydrophilic treatment (improving the product's moisture absorption, suitable for the hygiene products sector) and so on. The addition of post-treatment processes further expands the application scenarios of the products.
Cutting and inspection: Finally, the post-treated non-woven fabric rolls are sent to the cutting equipment, cut into rolls or sheets according to the width and length specifications required by the customers. After cutting, the quality inspectors will conduct a comprehensive inspection of the products, including appearance (checking for flaws, color differences, uneven textures), physical properties (testing tensile strength, elongation at break, breathability), and functionality (such as antibacterial rate, anti-static performance), ensuring that each batch of products meets the relevant national standards and customer requirements, and only qualified products can be stored and sent for shipment.
II. Advantages of Filament Spunbond Non-Woven Fabric
High strength and excellent durability: Long fiber spunbond non-woven fabric adopts a continuous long fiber structure and is reinforced through hot pressing to ensure tight adhesion between the fibers. The machine direction and cross direction tensile strength of the product is excellent, capable of withstanding large external forces without tearing. At the same time, its wear resistance and aging resistance are excellent, maintaining stable performance even in long-term use or harsh environments (such as moisture, light friction), with a much longer service life than short-fiber non-woven fabric.
Excellent breathability and moisture permeability: During the spunbond reinforcement process, by optimizing the design of the heat press roller's patterns and pressure parameters, a uniform microporous structure can be formed on the fabric surface. These micropores not only ensure smooth air circulation, giving the product good breathability, but also allow water vapor to penetrate, avoiding a stuffy feeling, suitable for hygiene products, clothing linings, and other scenarios in contact with the human body.
Outstanding dimensional stability: Due to the spunbond shaping process, filament spunbond non-woven fabric has undergone sufficient heat shrinkage stabilization treatment during production. In subsequent processing (such as cutting, sewing) or use, even after temperature changes or mild washing, it is unlikely to show obvious shrinkage or deformation, ensuring the consistency of product dimensions, providing convenience for downstream customers' production.
High production efficiency and cost advantage: The production process of filament spunbond non-woven fabric is continuous, from melt spinning to hot-pressing reinforcement, enabling continuous operations. Changshu Yongdeli spunlaced Non-Woven Fabric Co., Ltd. has further improved production efficiency by optimizing production parameters and equipment layout. Compared to some complex process non-woven fabrics, the filament spunbond process has high raw material utilization and reasonable energy consumption, ensuring product quality while offering better cost advantages, enabling customers to receive high-quality, cost-effective products.
Widely adaptable materials and customization capabilities: The company can customize products according to customer requirements by using different types of high-molecular materials (such as PP, PET) or adding functional agents. Whether adjusting the strength, softness of the product, or adding special functions such as antibacterial, anti-static, all can be achieved through process optimization. The customization capability is strong, capable of meeting the diverse needs of multiple industries.
III. Characteristics of Filament Spunbond Non-Woven Fabric
Flat and uniform fabric surface, neat appearance: Through precise control of various parameters in the spinning, netting and hot-pressing processes, the weight uniformity of the fabric surface of filament spunbond non-woven fabric is high, without obvious thickness differences or fiber agglomeration. If a smooth heat press roller is used, the fabric surface can present a fine, flat appearance; if a pattern roller is used, it can form a beautiful pattern, enhancing the visual texture of the product, suitable for scenarios with high requirements for appearance. No chemical adhesives, environmentally friendly and safe: The long filament hot-pressed non-woven fabric is bonded by the melting and fusing of the fibers through heat pressing. During the production process, no glue, resin, or other chemical adhesives need to be added, avoiding the potential harm of chemical substances to human health and reducing environmental pollution. The product has been tested by authoritative institutions and has no odor or harmful components, meeting national environmental protection standards (such as GB 18401-2010 "National Basic Safety Technical Specifications for Textiles"), and can be safely applied in the fields of hygiene and medical care.
Excellent processing performance: The product has excellent processing properties such as cutting, sewing, heat bonding, and printing. During cutting, there is no occurrence of loose edges or fiber shedding; during heat bonding, it can quickly bond with other materials (such as films, other non-woven fabrics), and the bonding strength is high; at the same time, the fabric surface is smooth and flat, facilitating printing processing, and can meet the diverse needs of downstream customers for product shape and appearance design.
Strong resistance to chemical corrosion: The main raw materials of the filament spunbond non-woven fabric (such as PP, PET) have good chemical stability and strong tolerance to common chemical substances such as acids, alkalis, and salts. In scenarios where it comes into contact with mild chemical reagents (such as industrial wiping and packaging), the product performance is not affected and can maintain a stable usage state.
Five. Weight Range of Filament Spunbond Non-Woven Fabric
The filament spunbond non-woven fabric produced by Changshu Yongdeli Spunlaced Non-Woven Fabric Co., Ltd. has a wide range of weights, meeting the needs of different industries and application scenarios. The specific weight range is 10g/㎡ - 150g/㎡, and can be customized and adjusted according to the special needs of customers. The characteristics and application scenarios of each weight range of products are as follows:
Low weight products (10g/㎡ - 30g/㎡): The product is lightweight and has excellent breathability, with a soft and transparent surface (PP material products). It is mainly used for the surface or drainage layer of hygiene products (such as the surface of sanitary napkins, diaper drainage layer), clothing inner linings (such as the inner lining of lightweight clothing, mask inner layer), and packaging materials (such as the inner lining of electronic product dust-proof packaging film) and other scenarios with low requirements for product thickness and weight.
Medium weight products (31g/㎡ - 80g/㎡): The product has both lightness and certain strength, with balanced comprehensive performance, excellent breathability and durability. It is widely used in hygiene products (such as baby wet wipes packaging, outer layer of adult incontinence products), medical protective products (such as medical caps, medical shoe covers, outer layer of disposable bed sheets), household products (such as disposable tablecloths, shopping bags, storage bags), and agricultural fields (such as seedling covering cloth, anti-grass cloth base material) and other scenarios with high requirements for product strength and thickness.
High weight products (81g/㎡ - 150g/㎡): The product has a large thickness, high strength, and good stiffness. It has outstanding wear resistance and impact resistance. It is suitable for industrial fields (such as industrial wiping cloth, base material for filtering materials, cable wrapping materials), packaging materials (such as heavy item packaging cloth, gift packaging bags), home decoration (such as thick disposable curtains, carpet padding), and agricultural fields (such as seedling covering cloth, anti-grass cloth base material) and other scenarios with high requirements for product strength and thickness.
Ⅴ. Application Scope of Filament Spunbond Non-Woven Fabric
Hygiene products market: As the core application field of filament Spunbond non-woven fabric, this product, with its lightness, breathability, and environmental friendliness, is widely used in hygiene products (such as diaper drainage layer, surface layer, side leakage protection cover of sanitary napkins), women's hygiene products (surface layer of sanitary napkins, pads, surface layer of sanitary wet wipes packaging), and adult incontinence products (outer layer of adult disposable diapers, surface layer of care pads). For example, in sanitary napkins, low weight filament spunbond non-woven fabric can be used as the drainage layer to quickly guide urine diffusion and keep the surface dry; medium weight products can be used as the outer layer, with excellent breathability and anti-leakage performance, enhancing the comfort of use. Medical protection market: In the medical field, filament spunbond non-woven fabric, due to its environmentally friendly nature, no odor, resistance to chemical corrosion, and ease of processing, has become an important raw material for medical protective products. It can be used to make medical caps, medical shoe covers, disposable medical sheets, pillowcases, non-sterile inner layers of surgical gowns, the outer layer of masks (to prevent droplet transmission), etc. For example, medical caps use medium-weight filament spunbond non-woven fabric, which can not only ensure breathability but also effectively prevent hair loss and prevent contamination of the medical environment; medical shoe covers rely on their good wear resistance, protecting the feet of medical staff from contamination.
Home and daily necessities market: With the growth in consumers' demand for convenient and hygienic home products, the application of filament spunbond non-woven fabric in this market continues to expand. It can be used to make disposable household products (such as disposable tablecloths, curtains, sofa covers), packaging for daily necessities (such as wet wipe packaging, inner linings of tissue boxes, shopping bags), storage products (such as storage bags, clothing dust-proof bags), etc. For example, disposable tablecloths use medium-weight products, which are lightweight and waterproof (some are treated with waterproofing), and can be discarded after use, convenient and fast; shopping bags, with their high strength and printability, become an ideal choice for eco-friendly shopping bags.
Industrial and packaging market: In industrial production, the high strength and wear resistance of filament spunbond non-woven fabric are fully utilized, suitable for industrial wiping cloths (such as oil stain wiping in mechanical processing and electronics industries), filter material substrates (such as support layers for air filters and water filters), cable wrapping materials (to protect cables from external wear and corrosion), etc. In the packaging field, high-weight products can be used for heavy item packaging (such as furniture and home appliances for transportation packaging) and gift packaging (such as high-end gift cloth bags), effectively protecting the packaged items while enhancing the aesthetic appeal of the packaging.
Agriculture and horticulture market: The application of filament spunbond non-woven fabric in the agricultural field is also gradually expanding, serving as seedling covering cloth (for insulation and moisture retention, promoting seed germination), weed control fabric base material (after special treatment, it can inhibit weed growth while allowing water penetration), and plant wrapping cloth (to protect seedlings during transportation from damage). For example, seedling covering cloth uses medium-low weight products, with good air permeability, providing an appropriate growth environment for young seedlings, and being resistant to aging, allowing for repeated use over multiple growth cycles.
Changshu Yongdeli Spunlaced Non-Woven Fabric Co., Ltd. always adheres to customer needs, relying on the outstanding performance and stable quality of filament spunbond non-woven fabric, providing professional material solutions for various industries. In the future, the company will continue to invest in research and development, optimize production processes, enrich product functions and application scenarios, providing the market with more high-quality, cost-effective filament spunbond non-woven fabric products, and achieving win-win development with customers.
