Parallel Spunlace Nonwoven Fabrics

I. Core Process Flow: Efficient and Simplified Parallel Production System

As an enterprise specializing in the production of nonwoven fabrics, Changshu Yongdeli Spunlaced Nonwoven Fabric Co., Ltd. relies on a mature parallel production line to establish an integrated processing flow from raw materials to finished products. It can precisely achieve production of all specifications of 20-100g/m². The core steps are as follows:

Raw material pretreatment: Select high-quality fiber raw materials such as cotton, viscose, and Tencel, adjust the raw material ratio and dosage according to the target weight (such as 20-50g/m² for lightweight type, 50-80g/m² for regular type, 80-100g/m² for heavy type), after automatic picking and precise weighing, proceed through pre-opening, mixing, and fine opening processes to ensure the fibers are fully loosened and evenly distributed, laying the foundation for the stability of the net weight.

Carding and net formation: The processed fibers are sent to the final cotton box and air pressure cotton box. By adjusting the carding machine speed and the output thickness (lightweight products reduce the output thickness and increase the running speed, heavy products increase the output thickness and moderately reduce the speed), the fibers are carded into continuous and uniform fiber nets, directly laid out along the longitudinal direction to form the basic fiber net structure, eliminating the need for complex cross-laying equipment, and the process is more concise with a weight deviation controlled within ±3%.

Staple bonding: According to the net weight, match the water injection process parameters (low weight products use low pressure needles to avoid fiber breakage, high weight products increase the number of water injection heads and water pressure to ensure the bonding strength), a high-pressure fine water jet penetrates the fiber net, rebounding after hitting the support net curtain and re-interlacing, causing the fibers to displace and entangle under multi-directional water force, achieving flexible reinforcement without adding chemical adhesives.

Post-treatment and shaping: The spunlace net is adjusted for drying temperature according to the weight (low weight products are dried at 80-90°C quickly, high weight products at 90-100°C for deep dehumidification), after removing moisture, undergoes winding, cutting, etc., precisely made into the required width (1.6-3.2m customizable) and weight of the finished product. Some high weight products can increase the rolling process to enhance density and flatness.

II. Core Product Advantages: Balancing Efficiency, Cost and Specification Adaptability

Yongdeli's spunlace nonwoven fabric, with its process characteristics and precise weight control capabilities, forms four core competitive advantages:

Production efficiency leading: The production line process is short, the equipment configuration is simple, and the floor space is reduced by 30% compared to cross-laying production lines. The production speed can reach 160-260m/min (slightly adjusted for different weights, regular weights can reach 220-260m/min), significantly improving the efficiency of order delivery.

Cost control precise: Without complex equipment such as cross-laying machines, while optimizing energy consumption and labor input for different weights (low weight products reduce energy consumption by 15%) and combining local industrial resource advantages, achieve production costs 15%-20% lower than traditional processes, providing customers with high-value full specification options.

Full weight adaptability strong: It can stably produce products with all ranges of 20-100g/m² weights. The strength ratio in both the machine and cross directions can be adjusted to 1.5:1-3:1 (low weight products focus on cross direction strength, high weight products enhance machine direction strength). Some 80-100g/m² high weight products can use a three-layer carding structure design to replace cross-lapped products.

Weight stability high: From raw material ratio to net formation, water injection, and cutting, the entire process sets weight monitoring points, using an online weighing system to provide real-time feedback and adjustment, with the weight deviation of the finished product strictly controlled within ±3%, far exceeding the industry standard of ±5%, ensuring the stability of downstream processing.

III. Outstanding Product Characteristics: Integration of Natural Properties and Process Advantages Based on the natural advantages of the needling technology, the precise control of the parallel process, and the full-kilogram repeat covering capability, the parallel spunlace non-woven fabric of Yongdeli presents five remarkable features:

Soft and skin-friendly without irritation: Using high-pressure water flow for flexible entanglement, it does not damage the natural structure of the fibers. Different weight products maintain a fine touch (20-50g/m² is as light as a gauze, 80-100g/m² is soft and thick), and there are no chemical adhesives residues in the production process. It has passed skin irritation tests and is suitable for close-fitting scenarios.

Excellent dual functions of moisture absorption and ventilation: The fibers are formed into a porous structure through needling entanglement, with a porosity rate of 75%-90% (lower weight products have a higher porosity rate and better ventilation; higher weight products have a more uniform pore distribution and better moisture absorption). The moisture absorption rate is more than 20% higher than that of ordinary non-woven fabrics, while ensuring good ventilation, avoiding a feeling of heat.

Strong and durable, easy to process: Different weight products ensure strength through optimized spunlace processes (20g/m² products have a breaking strength of ≥15N, 100g/m² products have a breaking strength of ≥80N). The fibers are closely interwoven, with strong wear resistance and tensile strength, and are not prone to shedding. The cutting and sewing process is convenient, meeting various deep processing requirements (low weight products are suitable for cutting, high weight products are suitable for sewing).

Uniform appearance and stable quality: The parallel process combined with full-kilogram precise control ensures high uniformity of the fabric surface and natural color for different weight products. There are no obvious longitudinal and transverse differences. Through printing, punching, and other processes, the appearance can be expanded (low weight products are suitable for fine printing, high weight products are suitable for three-dimensional embossing), meeting diverse design requirements.

Environmentally friendly and biodegradable: All weight products can use biodegradable fiber raw materials such as polylactic acid and Tencel. Burning produces no toxic residues, and after disposal, they can naturally degrade. Among them, the 20-50g/m² lightweight biodegradable products have a degradation cycle of 3-6 months, conforming to the concept of green development.

Four. Application market scope: Multi-domain applications of full-kilogram repeat covering

Combining the full-kilogram characteristics of the product with market demands, the parallel spunlace non-woven fabric of Yongdeli has been widely used in four core fields, with more precise weight adaptation in each field:

Personal care field: 20-50g/m² lightweight products are used as wet wipes, makeup pads, and facial masks, thanks to their soft and skin-friendly, high moisture absorption characteristics, becoming the preferred materials for beauty care and daily cleaning products; 50-80g/m² regular products can be used for baby soft wipes and adult care wipes, and has established long-term cooperation with many cosmetic enterprises.

Healthcare field: 30-60g/m² products are suitable for disposable sanitary pads and disinfection package cloths; 60-100g/m² products can be used as lightweight medical dressings and surgical gauze bases, meeting the strict requirements of healthcare scenarios through non-irritating, easy cleaning, and stable strength characteristics.

Industrial and household fields: 80-100g/m² high-weight products can be used as synthetic leather base and clothing lining, ensuring processing and usage performance with thick and strong characteristics; 50-80g/m² products can be used as soft towel rolls and lightweight filter materials; 30-50g/m² products are suitable for making household cleaning cloths, balancing cleaning power and softness.

Other special fields: 20-40g/m² ultra-low weight products can be used for flower packaging and precision instrument wiping cloths; 80-100g/m² ultra-high weight products can be customized as industrial heavy-duty wiping cloths, covering more specialized scene requirements.