Seven-hole Hollow Fiber: The King of Texture

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In the world of fibers, who is the most “hollow”? It’s not the four holes or six holes you are familiar with, but the Seven-hole Hollow Fiber with its own “seven holes and exquisite heart”. Don’t be fooled by its plain appearance, there are seven cavities inside, just like a hidden master with profound inner strength – lightness, warmth, and breathability, all of which are firmly grasped.

Parameter

Specification Description

Material Virgin PET (Polyester)
Structure Seven-hole hollow cross-section
Denier 3D / 6D / 7D / 15D (customizable)
Cut Length 32mm / 51mm / 64mm / customized
Finish Siliconized / Non-siliconized
Luster Bright / Semi-dull / Full-dull
Crimp Style 2D / 3D / HCS (Helical Crimped Siliconized)
Color White / Raw White / Custom Colors
Moisture Content ≤ 0.4%
Tenacity ≥ 4.0 cN/dtex
Elongation at Break 30%–60%
Application Fields Pillows, quilts, cushions, toys, sofas, bedding, insulation materials
Packaging Pressed bales or customized packaging
Certifications OEKO-TEX, GRS, ISO9001, RoHS, REACH
Customization Options Denier, cut length, finish, color, crimp ratio

What is Seven-hole Hollow Fiber?

Seven-hole Hollow Fiber is not just weaving seven holes, it is a kind of artificial hollow fiber material formed by high-precision drawing process. The seven tiny hollow structures inside are like “micro-tunnels” in the fiber body, which can greatly improve the warmth retention and fluffiness, and are the darling of high-end products such as quilts, pillows, dolls, and furniture fillings.

It is not an exaggeration to say that it is the “Hermes” of the filling industry.

High-quality raw materials: Only with a good source can the product be strong

If you want Seven-hole Hollow Fiber to be a big player in the market, the raw materials must be top-notch. The main raw materials we use include:

1. Virgin Grade PET

Virgin polyester chips from large chemical fiber factories at home and abroad, no recycled materials, no impurities, not only ensure the flexibility and stability of the fiber, but also make the product safer and more environmentally friendly. Take it to make baby products? No problem!

2. Imported anti-yellowing additives and silicone softeners

Anti-aging and anti-oxidation are the basic qualities of our high-end fibers. After adding imported additives, Seven-hole Hollow Fiber is like taking an antiseptic pill, not easy to yellow or deform, and its service life is several years longer than ordinary fibers. Silicone oil treatment makes it smoother and fluffier, and you can’t stop pinching it.

3. Environmentally friendly and non-toxic, odorless formula

Passed multiple RoHS and REACH certifications, does not contain formaldehyde and other harmful substances, green filling, safe to use, whether it is put into a pillow or stuffed into a plush toy, the whole family can feel at ease.

The hardcore advantages of Seven-hole Hollow Fiber

Seven-hole Hollow Fiber strong warmth retention:

Seven hollow structures, air static layered, more than 30% higher thermal insulation performance than traditional solid fibers.

Fluffy and soft:

High elastic recovery force, so that the quilt pillow can always “hold up the scene”, will not collapse, not stuffy, not hardened.

Breathable and dry:

Air circulation is smoother, say goodbye to stuffiness and humidity. Even if used in summer, it does not feel stuffy.

Easy to wash and dry:

Support water washing and machine washing, dry quickly, and it will be a “new” you after drying.

Application areas: Not only can it be filled, but it can also be filled cleverly

High-grade quilt core: warm in winter and cool in summer, thin and light without pressing on the body

Memory pillow: strong support, not afraid of you “turning face” faster than turning a book

Plush toys: soft and fluffy, hug like a cloud

Sofa cushions: sitting for a long time without collapsing, and guests also have face

Customization is the real strength

We provide a variety of customizable services, length, thickness, glossiness, silicone oil ratio are all adjustable. Production on demand, batch supply, whether you are a big factory or a design studio, we can “tailor” and send the most suitable Seven-hole Hollow Fiber to your door.

Conclusion: Fiber with seven holes is not “hollow vegetable”

Don’t be fooled by ordinary fibers anymore. Choosing Seven-hole Hollow Fiber is to choose an upgrade of life. It can give you the fluffy, soft, environmentally friendly and durable you want. What are you waiting for? It depends on it to make your products from “easy to use” to “amazing”!


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