Silver-Coated Nonwoven Fabric Products

1. Product Foundation: High-performance nonwoven fabric base, establishing a solid quality foundation

The outstanding performance of silver-coated nonwoven fabric begins with the rigorous manufacturing of the nonwoven fabric base. Our company selects polyester and polypropylene as the core raw materials, combines scientific ratios and mature nonwoven fabric processing techniques, to create a base material with strength, stability, and adaptability, providing an excellent carrier for subsequent silver coating processing and functional performance:

Polyester fibers: Provide the base material with excellent tensile strength and tear resistance, ensuring that the base material does not deform or break during silver coating processing, cutting, forming, and long-term use; at the same time, it has excellent chemical resistance and aging resistance, which can adapt to complex environments such as automotive interiors and outdoor protection, effectively extending the product's service life and ensuring the stability of the silver coating layer over time;

Polypropylene fibers: Have low moisture absorption and good corrosion resistance, can reduce the mold problem caused by humid environments on the base material, while its lightweight texture and strong cost adaptability can balance product cost and usage requirements for customers in scenarios with cost-oriented requirements in multiple fields.

After precise ratio matching (the proportion of polyester and polypropylene can be adjusted according to customer needs, such as increasing the proportion of polyester in the automotive field for aging resistance, and optimizing the proportion of polypropylene in general scenarios), through loosening, combing, cross-laying, and then by high-pressure water jet to make the fibers interlock, a uniformly textured, tightly structured, and performance-stable nonwoven fabric base is formed. Each batch of base material undergoes multi-dimensional inspections (such as weight (20-150g/㎡ adjustable), thickness, strength, etc.) and error control is within a very small range, ensuring consistency and reliability, laying a solid foundation for the precise implementation of the silver coating process.

2. Core Process: "Nonwoven Fabric Base + Precise Silver Coating", Endowing Products with Multiple Functions

Our silver-coated nonwoven fabric strictly follows the step-by-step process mode of "preparing nonwoven fabric base first, then doing silver coating processing", and based on the requirements for the adhesion and functionality of the silver coating layer, combined with the antibacterial properties of silver ion additives, customize and optimize all process parameters to achieve "stable base + uniform silver coating + strong antibacterial effect" triple guarantees:

(1) Pre-treatment of nonwoven fabric base: Enhancing silver coating adhesion

Before silver coating processing, the nonwoven fabric base undergoes meticulous pre-treatment: removing moisture from the base surface through low-temperature drying (temperature controlled at 60-80℃) to avoid moisture affecting the adhesion of the silver coating layer; at the same time, using plasma surface treatment technology, slightly activating the surface of the base fibers to enhance the bonding force between the silver coating material and the fibers, reducing the risk of coating layer detachment from the source and ensuring the stability of the coating layer over time.

(2) Precise silver coating processing: Balancing protection and antibacterial properties

Relying on customized silver coating production lines, based on the characteristics of the silver coating material and the functions of silver ion agents, implement precise processing to maximize the protection and antibacterial value of the product:

Silver coating material selection: Selecting high-purity aluminum silver paste (or environmentally friendly silver coating materials) to ensure that the silver coating layer has excellent light-blocking and reflective properties (such as reflecting ultraviolet and infrared rays), while meeting environmental protection standards for automobiles and healthcare (such as VOCs content compliance); With food-grade / medical-grade silver ion agents, the antibacterial effect is safe and non-toxic, and does not pose any harm to the human body or the environment.

Silver coating process control: The micro-embossed coating process is adopted, and by precisely adjusting the rotational speed of the coating roller (5-15m/min adjustable), the viscosity of the silver coating material (200-500cP), and the coating pressure, the silver coating layer is ensured to be evenly covered on the substrate surface, with a thickness error controlled within ±3μm, without any issues such as missed coating, run-off, or bubbles; at the same time, according to customer requirements, single-sided or double-sided silver coating can be achieved to meet different scenarios' protection needs;

Silver ion agent integration: During the mixing of the silver coating material, the silver ion agents are precisely added according to the customer's antibacterial grade requirements (such as an inhibition rate of ≥99%). Through high-speed stirring (rotation speed 1500-2000r/min), the agents are ensured to be uniformly mixed with the silver coating material, avoiding insufficient antibacterial effect in certain areas; after coating, the silver coating is dried by infrared (temperature 100-120℃), allowing the coating layer to quickly solidify and activating the silver ion activity to ensure a stable and long-lasting antibacterial function (antibacterial duration can reach the product's lifespan).

III. Product advantages: Multiple characteristics combined, adaptable to diverse needs

Thanks to the high-quality spunlace base material and the "coating + silver ion antibacterial" process combination, our coated spunlace non-woven fabric has multiple core advantages and can flexibly adapt to the needs of various fields:

Excellent protective performance: The silver coating layer has excellent light-blocking properties (light-blocking rate ≥98%), ultraviolet reflection properties (ultraviolet blocking rate ≥95%), and infrared reflection properties, effectively blocking direct sunlight and ultraviolet radiation, suitable for car interior sun protection, outdoor products shading, etc.; at the same time, the silver coating layer has certain barrier properties, which can reduce dust and moisture intrusion and enhance the product's protective ability;

Strong and long-lasting antibacterial effect: The silver ion agents achieve strong and long-lasting antibacterial effects by destroying bacterial cell membranes and inhibiting bacterial reproduction (antibacterial rate ≥99%), and the antibacterial effect is not affected by cleaning (some washable models) or friction, providing long-lasting protection for use, suitable for medical protection, baby products, etc.;

Stable and durable coating: Through base material pre-treatment and precise coating process, the silver coating layer is closely bonded to the base material, with strong adhesion (100-point test adhesion reaches level 1), and is not prone to peeling or cracking in folding, friction, alternating high and low temperatures (-30℃ to 80℃), ensuring stable performance during long-term use;

Safe and environmentally compliant: The selected silver coating materials and silver ion agents comply with national environmental protection standards (such as RoHS, REACH certifications), without harmful heavy metals or volatile organic compounds release, and can be safely used in scenarios in contact with the human body (such as car interiors, medical protective products).

IV. Application scenarios: Covering multiple industries, enhancing customer value

Our coated spunlace non-woven fabric, with the "protection + antibacterial" dual advantages, has been widely used in multiple fields and has become an important support for customers' product upgrades:

Automotive field: It can be used as the base material for car sunshade curtains, seat back sun protection layers, and instrument panel light-blocking pads. Through the light-blocking and sun protection properties of the silver coating layer, it reduces aging damage to the interior caused by direct sunlight and ultraviolet radiation, improving interior comfort; at the same time, the silver ion antibacterial function can inhibit bacteria from breeding on the interior, improving indoor air quality;

Medical protection field: It can be used to make medical isolation gowns inner linings, bed curtains, disposable protective caps. The barrier properties of the silver coating layer can reduce the contact of dust and droplets, and the silver ion antibacterial function can inhibit cross-infection of bacteria, ensuring the health of medical staff and patients; Home living field: Can be used as curtain fabric, air conditioner dust cover, baby fence fabric, and pipe outer layer fabric. Applying a silver coating to achieve shading and dust-proof effects. The silver ion antibacterial function can inhibit the growth of bacteria on the fabric (such as mold and mites), creating a healthy home environment.

Outdoor field: Can be used to make outdoor tent shading layers, sun protection clothing fabric, and campsite mats. Applying a silver coating to block ultraviolet radiation, protecting the human body from sunburn, and at the same time, the antibacterial function reduces the growth of bacteria in the outdoor humid environment, improving the user experience.

V. Brand commitment: Always maintain quality, mutual benefit and win-win

Since its establishment, Changshu Yongdeli Spunlaced Nonwoven Fabric Co., Ltd. has always regarded "sustainable quality" as the core of development, running through the entire production process of silver-coated spunlace nonwoven fabric:

Raw material end: Strictly select suppliers of polyester, polypropylene fibers, silver-coating materials and silver ion agents. Each batch of raw materials must provide quality inspection reports and certification certificates, and undergo re-inspection by our company (such as silver ion content testing, environmental protection testing of silver-coating materials), to ensure the safety of the source;

Production end: Equipped with professional quality inspectors and online detection equipment (such as coating thickness detector, antibacterial performance tester), real-time sampling inspections of key links such as substrate performance, uniformity of silver coating, and antibacterial effect, to prevent substandard products from entering the market;

Service end: Provide customers with a full-process service from "demand communication - scheme design (such as customizing silver coating thickness, antibacterial grade) - sample production - batch production - after-sales tracking", if the customer has adjustment needs for product performance, can quickly optimize process parameters to ensure the product fits the actual application scenarios.

In the future, we will continue to be guided by "customer needs", deepen the innovation of silver-coating technology (such as developing thinner and more environmentally friendly silver-coating materials), expand the application scenarios of silver ion agents, and strive to become a "reliable quality, flexible customization, professional service" supplier in the field of silver-coated spunlace nonwoven fabric, working together with customers to achieve the long-term development goal of "sustainable cooperation, mutual benefit and win-win".