PRODUCT DETAIL

15D 64mm Hollow Conjugate Siliconized Virgin Fiber

In the modern high-precision textile market, the quality of your raw materials defines your brand’s longevity. 15D 64mm Hollow Conjugate Siliconized HCS Virgin Polyester Staple Fiber is widely considered the “industry standard” for premium filling due to its perfect balance of softness, support, and durability. Unlike recycled variants, Virgin HCS offers absolute purity and molecular consistency, ensuring a long-lasting, hypoallergenic product that meets the stringent requirements of global export markets.

At VNPOLYFIBER, we support your sourcing by providing the best QC team and expertise in the supply chain across Vietnam, China, Malaysia, Thailand, and Indonesia. This guide provides a deep-dive into the manufacturing excellence and strategic applications of this essential fiber.

Technical Analysis: The Power of 15 Denier

The technical nomenclature “15D 64mm HCS” defines a fiber built for structural integrity:

• 15 Denier (15D): This represents a thicker, more robust filament. The higher denier provides increased mechanical resistance, preventing the “flattening” effect in large cushions and heavy mattresses.

• 64mm Cut Length: This is the optimized staple length for high-speed industrial carding and blowing machines. It ensures the fibers interlock securely to maintain a uniform volume without lumping.

• Hollow Architecture: Like all VNPOLYFIBER hollow fibers, each 15D filament contains a central void. This traps air for thermal insulation and reduces the fiber’s total weight by 20% compared to solid alternatives.

• 3D Conjugate Crimp: This helical, spring-like shape provides permanent resilience. Unlike mechanical 2D crimps, the 3D spiral allows the fiber to recover its loft instantly after heavy compression.

The Manufacturing Excellence of Virgin Polyester

The 15D grade requires absolute molecular strength, which is why Virgin Polyester is the preferred choice for industrial-grade applications.

1. Pure Feedstock: Our Virgin HCS is made directly from PTA and MEG or PET Chips. This ensures a polymer with long, unbroken chains that provide superior tenacity (breaking strength) compared to recycled waste.

2. “Zero-Defect” Production: Unlike recycled fiber, which can have variations in color or texture, 15D Virgin fiber offers a Super White finish and 100% molecular consistency, essential for luxury furniture and medical-grade padding.

3. Siliconization Treatment: During production, a premium silicone oil is added. This creates a “slick” finish, ensuring the thick 15D fibers can slide past one another smoothly. This prevents the “crunchy” feel of untreated heavy fibers and ensures a “feather touch” even in robust fills.

Strategic Advantages: The “Virgin” Difference

Choosing Virgin HCS over recycled materials is a strategic choice for brands focusing on the luxury, medical, or high-end hospitality sectors.

• Pristine Optical Clarity: Virgin fiber provides an “Optical White” finish. This is essential for high-end white bedding where even a slight yellow or grey tint (common in low-grade recycled fiber) is unacceptable.

• Dimensional Stability: It possesses a resilience that natural fibers lack. Our 15D 64mm HCS neither stretches nor shrinks, ensuring your final product—whether a luxury comforter or a sofa backrest—retains its original dimensions.

• Hypoallergenic Purity: Free from post-consumer contaminants, virgin fiber is the safest choice for baby toys, medical-grade padding, and sensitive-skin bedding.

• Moisture and Odor Control: Polyester is naturally hydrophobic. It repels moisture, which inhibits the growth of fungus, mold, and bacteria. At VNPOLYFIBER, we ensure our fiber’s finish helps eliminate bad odors for a more hygienic consumer experience.

The VNPOLYFIBER QC Commitment

We don’t just supply fiber; we provide peace of mind. Our best-in-class QC team performs rigorous checks on:

1. Denier Accuracy: Verifying thickness (±0.7) for consistent hand-feel.

2. Oil Content: Ensuring the correct percentage (0.5% ±0.05%) for optimal machine processing.

3. Crimp Frequency: Checking for 3–5 crimps per cm to guarantee loft.

We aim to serve one customer 1,000 times. Whether you are sourcing from Vietnam or China, VNPOLYFIBER ensures your technical specs are met with 100% transparency.

Conclusion: Orchestrating a Resilient Supply Chain

Managing the supply of 15D 64mm HCS Virgin Fiber requires a partner who understands the balance between industrial strength and consumer comfort. VNPOLYFIBER supports your sourcing by providing a “China + 1” model across five Asian countries, ensuring you always have access to the highest-quality raw materials at a competitive price.

Our best-in-class QC team monitors every batch for denier accuracy, resilience, and siliconization consistency. We aim to serve one customer 1,000 times. Partner with VNPOLYFIBER to ensure your production is built on a foundation of quality.

Technical Parameter

How to Choose the Right Denier for Your Production

Selecting the correct Denier is the most critical decision in fiber manufacturing. It determines the softness, strength, and “hand-feel” of your final product. Based on our latest technical specifications, here is a guide to choosing the perfect fiber for your industry.

1. Micro-Fibers (0.7D – 1.2D): The Premium Touch

These ultra-fine fibers are designed for products that require a luxurious, soft texture.

• Best For: Premium fleece, high-end cleaning cloths, and thermal bonding applications.

• Key Benefit: Provides a “silk-like” feel while maintaining excellent warmth-to-weight ratios.

2. Apparel & Performance Grades (1.4D – 3D)

This range is the “standard” for the clothing industry, balancing durability with comfort.

• Best For: Sportswear, underwear, and casual wear.

• Specialty Options:

  • 1.4D Solid: Ideal for Flame Retardant (FR) clothing textiles.

  • 1.5D – 3D Dope Dyed Black: Perfect for non-woven fabrics and dark apparel.

  • Anti-Pilling: Designed specifically to prevent “fuzz balls” on activewear.

3. Mid-Range Support (4D – 7D)

The “sweet spot” for items that need to be soft but also hold their shape.

• Best For: High-end bedding, thermal socks (Bamboo Charcoal), and furniture arm-padding.

• Key Benefit: Often available in Hollow Conjugate (7D) for better “spring-back” memory in cushions.

4. Industrial Heavyweights (8D – 15D)

These thick, high-tenacity fibers are built for maximum volume, structural support, and durability.

• Best For: Furniture cushions, mattress padding, toy stuffing (High Void Conjugate), and resin bonding.

• Key Benefit: The 15D hollow structure provides massive filling power and high resilience for heavy daily use.

Quick Reference: End-Use Matrix

Solid vs. Hollow vs. Conjugate: Choosing the Right Fiber Section

In the non-woven and textile industries, the “cross-section” of a fiber is just as important as its thickness. Whether you are producing high-density filters or high-loft cushions, the internal structure of the fiber determines how the final product performs.

1. Solid Cross-Section: Strength & Density

Solid fibers are continuous and dense, providing maximum structural integrity.

• How it works: These fibers have a completely filled core, making them heavier and more durable than hollow versions.

• Best For: * Non-woven Interlinings: Provides the necessary stiffness for garment structures.

  • Needle-punching: Withstands the mechanical stress of industrial needles.

  • Geotextiles & Water Transport: High-tenacity 1.2D solid fibers are engineered for industrial durability.

  • Apparel: Used in 1.4D to 3D ranges for sportswear, underwear, and casual wear.

2. Hollow Non-Conjugate: Insulation & Moisture Management

Hollow fibers feature a central air-filled core, similar to a tube.

• How it works: The trapped air acts as a thermal barrier, making the material 20% lighter than solid fiber while providing superior warmth.

• Best For: * Bamboo Charcoal Products: Ideal for shoe pads and thermal socks that require odor absorption and heat retention.

  • Thermal Bonding: Used in 6D to 15D ranges to create lightweight padding.

  • Filtration: Coarser hollow grades are excellent for air and medical filters.

3. Hollow Conjugate: Maximum Loft & Bounce

Conjugate fibers are engineered with a 3D spiral crimp, acting like a microscopic spring.

• How it works: The “spring-back” memory allows the fiber to recover its shape instantly after compression.

• Best For: * High-Void Filling: The premier choice for furniture cushions and luxury pillows (7D–15D).

  • Toy Padding: Provides a soft, safe, and durable fill for plush toys.

  • Resin Bonding: Ideal for creating high-loft wadding and batting sheets.

Video

FAQ

1. What do you offer?

We supply a comprehensive range of fibers, including recycled hollow conjugate (both siliconized and non-siliconized) polyester staple fiber, hollow fiber, microfiber, virgin polyester staple fiber, and low-melt fiber.

2. What is it used for?

Our fibers are versatile and widely utilized across both the filling and non-woven industries, providing essential loft, durability, and texture for various consumer and industrial applications.

3. Are you a factory or a trading company?

We are primarily a manufacturer specializing in polyester staple fiber with years of industry expertise. To better serve our clients, we also operate a dedicated trading division that allows us to act as a one-stop solution provider.

In addition to our own fiber production, we source high-quality textile components (such as yarn and low-melt fibers) and finished goods (including foam, pillows, cushions, toys, and down/feather products) to ensure our customers have access to a comprehensive supply chain.

4. Where is your factory location?

To maintain a robust and flexible global supply chain, our manufacturing facilities are strategically located throughout Asia, specifically in Vietnam, China, Malaysia, Thailand, and Indonesia. If you would like to visit one of our sites, please contact your sales representative, and we will be happy to arrange transportation for you.

5. Can you accept free sample?

Yes, we provide free hand samples for quantities under 1 kilogram. Once a price is confirmed, we can prepare and dispatch your sample within 2–3 business days. Please note that while the sample is free, the freight costs are the responsibility of the client.

6. Can you provide ODM service?

Absolutely. We specialize in ODM (Original Design Manufacturing). This means we can customize the material composition, dimensions, quantity, packaging, and branding to meet your specific requirements. Your logo and unique specifications will be integrated into the final product.

7. How about your quality? What’s the minimum order Quantity (MOQ)?

We invite you to place a trial order to experience our quality firsthand. Our standard MOQ is 23,000 kilograms per order.

Regarding pricing, we maintain a no-bargain policy. We believe in transparency and efficiency, so we provide our most competitive offer upfront to save you time and ensure a straightforward procurement process.

8. Can I mix different items in one order?

Yes, for your convenience, we allow for a maximum of two different items to be mixed within a single container.

9. How can you guarantee the product quality?

Quality is the cornerstone of our business. We employ an experienced QC team that monitors every stage of production, from raw material inspection to the final manufacturing process. We utilize a range of advanced testing instruments to ensure our fibers meet strict industry standards.

Our business philosophy is simple: We aim to serve one customer 1,000 times, rather than 1,000 customers once. We prioritize long-term partnerships built on consistent excellence.

10. What’s the payment terms?

L/C at sight, 30% TT in advance are mostly accepted; other terms shall be negotiable by both sides

For more information, please feel free to contact :

Tony Tan

Mobile number: +84 90 466 5251 (Whatsapp/Wechat/Viber/Signal)