Noctilucent Spunlace Nonwoven Fabric Products

I. Product Foundation: Diverse High-Quality Base Materials, Meeting the Needs of Noctilucent Scenarios

The performance and scenario adaptability of noctilucent spunlace nonwoven fabric start with the precise selection and scientific proportioning of spunlace base material raw materials. Our company carefully selects high-quality fibers such as polyester, viscose, pure cotton, and bamboo fiber, and combines the requirements of different scenarios for the flexibility, strength, and light absorption of the base material to create spunlace base materials that are both basic in performance and suitable for noctilucent applications, providing a stable carrier for the subsequent attachment of noctilucent agents and the exertion of their noctilucent functions:

Polyester fiber: Endows the base material with excellent tensile strength, tear resistance, and weather resistance, ensuring that the base material does not deform or break during noctilucent processing and outdoor use (such as safety signs, outdoor tents); it also has good washability, which can reduce the loss of noctilucent agents during washing and ensure the long-term stability of the noctilucent effect, suitable for outdoor and industrial scenarios with high durability and weather resistance requirements;

Viscose fiber: Has excellent moisture absorption and fiber adsorption, which can enhance the adhesion between the base material and the noctilucent additives, preventing the noctilucent layer from peeling off. At the same time, its soft and skin-friendly touch makes the product more comfortable in children's products and home decoration scenarios, suitable for close contact scenarios;

Pure cotton fiber: Natural, environmentally friendly, and biocompatible, with no irritation or odor, and a loose and porous fiber structure that can effectively adsorb noctilucent agents and store light energy, extending the glow duration. After noctilucent post-treatment, it becomes the preferred base material for children's clothing, baby products, and other scenarios with strict safety requirements;

Bamboo fiber: Has good breathability and environmental degradability. The natural texture on the fiber surface can enhance the adhesion with noctilucent agents, in line with the trend of green and low-carbon development. After noctilucent processing, it is suitable for high-end home decoration, environmentally friendly safety signs, and other scenarios that pursue both naturalness and functionality.

We flexibly adjust the raw material ratio according to customer needs - for durable scenarios such as outdoor safety signs, the proportion of polyester can be increased (such as 65% polyester + 35% viscose), while for children's clothing and home decoration scenarios, viscose, pure cotton, and bamboo fiber are mainly used. Each batch of base materials undergoes multi-dimensional testing such as weight (adjustable from 25 to 180g/㎡), thickness, strength, and breathability, with errors controlled within a very small range to ensure the stability of base material performance and lay a solid foundation for the precise implementation of the noctilucent agent post-treatment process.

II. Core Technology: "Spunlace Base Material + Noctilucent Agent Post-Treatment", Achieving Long-Lasting Luminescence 

Our noctilucent spunlace nonwoven fabric strictly follows the step-by-step process of "first making the spunlace base material, then doing the noctilucent agent post-treatment". According to the characteristics of different base materials and noctilucent requirements, we use printing and coating as the core processing methods and customize the post-treatment solutions. Through refined control, we achieve the triple guarantee of "stable base material + uniform noctilucent layer + long-lasting luminescence", ensuring excellent and safe noctilucent performance of the product:

(1) Pre-treatment of spunlace base material: Enhancing the adhesion of the noctilucent layer

Before the noctilucent agent post-treatment, we conduct targeted pre-treatment on the spunlace base material to create conditions for the uniform attachment of the noctilucent agents and the storage of light energy:

For substrates with strong hygroscopicity such as viscose, pure cotton, and bamboo fiber, low-temperature drying (55-65℃) is adopted to remove excess surface moisture, avoiding moisture affecting the dispersion and adhesion of the luminous agent, and preventing mold growth due to dampness, ensuring a stable environment for luminous processing. For synthetic fiber substrates like polyester, plasma surface treatment technology is used to slightly activate the surface active groups of the fibers, enhancing the chemical bond strength between the substrate and the luminous agent, reducing the shedding of the luminous layer during subsequent use (such as friction and washing), and extending the luminous duration.

(2) Post-treatment of luminous agents: Dual-process of printing and coating, customized luminous solutions

Relying on a customized luminous processing production line, based on customers' requirements for luminous brightness, duration, and pattern accuracy, environmentally friendly long-lasting noctilucent agents (such as strontium aluminate luminous powder with a luminous duration of ≥8 hours) are selected. Through two core processing methods, printing and coating, differentiated processes are implemented to ensure efficient and uniform luminous effects:

Selection of luminous agents: Non-radioactive and non-irritating luminous agents that meet national environmental standards (such as GB 6675-2014 "Toy Safety", RoHS) are chosen. The particle size of the noctilucent powder is controlled at 5-20μm to ensure good dispersion and high luminous efficiency. Meanwhile, the luminous color can be adjusted according to customer needs (such as yellow-green, sky blue, red) to meet the visual requirements of different scenarios and ensure safe use in children's and baby products.

Core processing methods: Printing method - Precise patterns, personalized luminous effects

Suitable for scenarios requiring specific luminous patterns (such as cartoon shapes, safety signs, text), high-precision screen printing or gravure printing equipment is used to mix the noctilucent agent with an environmentally friendly adhesive and print it evenly on the surface of the spunlace substrate according to the preset pattern:

Pattern accuracy control: Customized screens (150-300 mesh) or gravure rollers are used to ensure that the noctilucent pattern lines have an accuracy of 0.2-0.8mm, with no broken lines or ink overflow, meeting the personalized luminous needs of children's toys and home decorations.

Printing parameter optimization: The printing speed (adjustable from 2 to 6m/min) and scraper pressure (0.15-0.4MPa) are adjusted according to the substrate's hygroscopicity to ensure uniform coverage of the noctilucent paste on the substrate surface, with the printing thickness (adjustable from 8 to 30μm) error controlled within ±8%, avoiding uneven noctilucent brightness in local areas.

Curing and setting: After printing, a low-temperature drying process (70-90℃) is used to ensure full curing of the noctilucent agent and adhesive, forming a stable luminous layer, avoiding high temperature damage to the luminous agent's luminous performance, and enhancing the adhesion between the noctilucent layer and the substrate. After 5 washes (for washable models), the noctilucent brightness attenuation rate is ≤20%.

Core processing method: Coating method - Full coverage, uniform luminous effect

Suitable for scenarios requiring overall luminous effects and large-area luminous layers, a precision scraper coating device is used to evenly coat the noctilucent agent paste on the surface of the spunlace substrate:

Coating uniformity control: By adjusting the scraper gap (adjustable from 10 to 40μm) and substrate transmission speed (1-5m/min), a continuous, bubble-free, and fully coated luminous layer is formed on the substrate surface, with a coverage area of up to 100%, meeting the overall luminous needs of emergency signs and outdoor tents.

Thickness precise control: An online thickness detection system is used to monitor the noctilucent layer thickness in real time, with an error controlled within ±5%, avoiding luminous brightness fluctuations due to uneven thickness and ensuring consistent overall luminous effects. Curing and setting: After the coating is completed, a hot air circulation drying process (65-85℃) is adopted to slowly cure the luminous layer, ensuring that the noctilucent agents are fully dispersed and firmly attached to the substrate. After curing, the adhesion of the luminous layer is strong (adhesion reaches grade 1 in the cross-hatch test), and it can effectively resist sun exposure and rain when used outdoors. The luminous duration is stably maintained for ≥8 hours (after absorbing natural light for 2 hours).

III. Product Advantages: Multiple Characteristics Overlaid, Empowering Luminous Applications

With diverse high-quality substrates and "printing / coating" dual-process post-treatment of noctilucent agents, our noctilucent spunlace non-woven fabric has multiple core advantages, which can flexibly meet the luminous needs of different fields and provide strong support for product upgrades of customers:

Outstanding and long-lasting luminous performance: After absorbing natural light / artificial light for 2 hours, it can continuously emit light for ≥8 hours in the dark, with a luminous brightness of 100-500 mcd/m² (adjustable according to the thickness of the luminous layer), and the luminous performance is stable. After ≥1000 cycles of light absorption - emission, the luminous decay rate is ≤30%, meeting long-term usage requirements;

Flexible and strong process adaptability: With printing and coating as the core, the processing method can be selected according to customer needs - choose printing for personalized luminous patterns and coating for large-area overall luminous effects. At the same time, it is combined with multiple substrates to achieve "one scene, one process, one substrate", meeting the differentiated needs of different scenarios such as children's products, outdoor safety, and home decoration;

Good flexibility and safety: Relying on the flexible characteristics of the spunlace substrate, the product can be freely bent and folded without breaking, suitable for curved surface identification, children's clothing, and other scenarios that require adhesion. The selected luminous additives and raw materials are non-radioactive and non-irritating. After skin irritation tests (no redness or itching reactions) and heavy metal detection (compliant with GB 6675 standards), it can be safely used in children and baby scenarios;

Strong weather resistance and washability: The polyester substrate combined with an optimized curing process gives the product good weather resistance. When used outdoors, it can withstand temperature changes from -30℃ to 60℃ and rain. The washable models have no obvious luminous layer detachment after 5 washes, and the luminous brightness decay rate is ≤20%, suitable for scenarios that require frequent cleaning (such as children's clothing and home textiles).

IV. Application Scenarios: Covering Multiple Fields, Enhancing Safety and Decoration

Our noctilucent spunlace non-woven fabric, with the advantages of "diverse substrates + dual-process luminous + excellent performance", has been widely applied in outdoor safety, children's products, home decoration, emergency protection, and other fields, becoming the core support for product function upgrades of customers and empowering the safety and experience improvement of various industries:

Outdoor safety field: Select polyester + viscose substrates, and form an overall luminous layer through coating. It can be used to make outdoor safety signs (such as roadside warning tapes, mountain climbing path signs), outdoor tent fabrics, and reflective strips for raincoats. It continuously emits light in the dark, enhancing outdoor safety at night and reducing the risk of getting lost or colliding;

Children's products field: Select all-cotton / viscose substrates, and create cartoon luminous patterns through printing. It can be used to make children's clothing (such as pajamas, outerwear), children's toys (such as plush toy fabrics, puzzle backing), and baby bed skirts. It not only satisfies children's interest in luminous patterns but also ensures usage safety. At the same time, it emits light in the dark, making it convenient for parents to check on their children's status;

Home decoration field: Select bamboo fiber / all-cotton substrates, and create luminous effects through printing / coating. It can be used to make curtains, wall fabrics, pillow covers, and carpets. It emits soft luminous light at night, creating a warm atmosphere, and can also be used as an auxiliary for emergency lighting at night (such as slightly luminous bedroom curtains to avoid bumps when getting up at night). Emergency protection field: Using polyester as the base material, a large-area luminous layer is formed through the coating method, which can be used to make emergency escape signs (such as evacuation indicator stickers in hotels and shopping malls), emergency blanket fabrics, and luminous strips for fire suits. They can quickly emit light in the event of a power outage or in the dark, guiding the escape direction and enhancing emergency safety.

V. Brand Commitment: Permanently Upholding Quality, Mutual Benefit and Win-Win

Since its establishment, Changshu Yongdeli Spunlaced Nonwoven Fabric Co., Ltd. has always regarded "sustained quality" as the core of its development, integrating it throughout the entire production process of luminous spunlace nonwoven fabric. With professionalism and responsibility, we safeguard the performance and safety of our customers' products:

Raw material stage: We strictly select fiber suppliers and noctilucent agent suppliers. Each batch of raw materials must provide quality inspection reports and safety certifications. Noctilucent agents must also provide third-party luminous performance test reports (including luminous duration, brightness, and safety tests). After our company's re-inspection (fiber composition, additive purity, heavy metal content) and confirmation of qualification, they can be used to ensure the safety of the source.

Production stage: We are equipped with a professional quality inspection team and precise testing equipment (such as luminous brightness testers, adhesion testers, and water washing resistance testers). We conduct real-time spot checks on key indicators such as base material performance, uniformity of the luminous layer, and luminous performance. Samples of each batch of products are retained for future reference to prevent substandard products from entering the market.

Service stage: We provide customers with a full-process service from "demand communication - base material selection - luminous solution design (such as customizing luminous colors, choosing printing / coating processes) - sample production - batch production - after-sales tracking". If customers have special requirements for luminous effects or processing methods, we can quickly optimize process parameters to ensure that the products precisely meet the actual application scenarios.

In the future, we will continue to be customer-oriented, deepen the research and development of luminous technology (such as developing higher brightness and thinner luminous layers), expand base material categories and application scenarios, and strive to become a supplier in the noctilucent spunlace nonwoven fabric field that is "reliable in quality, flexible in customization, and professional in service". We will work hand in hand with customers to achieve the long-term development goal of "sustained cooperation and mutual benefit and win-win", and jointly promote the innovation and upgrading of the functional spunlace nonwoven fabric industry.