In the fiber world, there is a “low-key technical school” that does not compete for the limelight, but once it appears, it can refresh your understanding of warmth, lightness and breathability. It is – Four-hole Hollow Fiber, which is translated into Chinese as “four-hole hollow fiber”.

If you think it is just “a fiber with a few holes”, then you may not know how deep its “inner strength” is.

What is Four-hole Hollow Fiber?

Four-hole Hollow Fiber is a man-made polyester fiber with four longitudinal hollow channels. These holes not only make the fiber lighter and softer, but also form an “air energy storage layer” to improve warmth retention and fluffiness. For example, if ordinary fiber is a single room, four-hole fiber is a luxurious duplex suite, and air wants to stay in it for a few more nights.

What’s even better is that the four-hole design can also increase the friction between the fibers, making it more resilient and not easy to collapse, clump or compact. To sum it up in one sentence: It is a smart fiber that can “breathe”.

Four-hole Hollow Fiber uses high-quality raw materials and is extraordinary from the beginning

A good Four-hole Hollow Fiber has a set of “high-end material selection logic” behind it. In order to ensure its stable performance and high quality, we use PET chips as raw materials. These chips are not only of high purity and few impurities, but also perform well in the melt spinning process.

In order to meet the environmental protection and functional needs of different customers, we can also use recycled PET raw materials to help customers achieve green procurement goals without sacrificing performance.

Whether it is used for high-end bedding filling, sofa cushions, winter clothing, or industrial insulation filling materials, Four-hole Hollow Fiber can “win one hole” with its strength.

Three outstanding features of Four-hole Hollow Fiber

1. Four-hole Hollow Fiber light and fluffy-Max volume, Min weight

The four-hole design means that more air is “trapped” inside the fiber. This “air chamber” structure makes the filling more fluffy without being bloated. Imagine a winter jacket that makes you feel like you are surrounded by clouds without making you look like a walking cotton ball. This is its magic.

2. Strong resilience – no “slump waist and cartilage person”

Ordinary fiber fillings tend to collapse after a period of time, while Four-hole Hollow Fiber is like a master who has practiced yoga, with excellent resilience and lasting support. It can keep the sofa cushions from “deforming” after sitting for a long time, and the mattress remains thick and full, truly achieving “sitting for a long time, the mood will not collapse”.

3. Good breathability and moisture-proof – comfort is not accidental

The hollow structure has another innate skill: breathability! Air can freely pass through the fibers to help expel moisture and keep dry and comfortable. Whether it is a humid environment or a hot and humid climate, it can help you “breathe”, making the filling healthier and longer-lasting.

Why are customers all over the world using Four-hole Hollow Fiber?

In addition to the aforementioned keywords “soft, elastic, light and transparent”, Four-hole Hollow Fiber has another hidden advantage: super high adaptability. It is suitable for mechanical filling and manual filling, compatible with all kinds of fabrics, and can provide customized services such as different lengths, thicknesses, silicon treatments, and curls according to customer needs.

In short, it is not only a material, but also a strategic resource. Choosing it is to increase the competitiveness of your products.

Conclusion about Four-hole Hollow Fiber

If you are looking for a lightweight, warm, durable and environmentally friendly fiber material to upgrade your product, then Four-hole Hollow Fiber will be a choice you will not regret. It is not as noisy as a star, but it must be the one who silently “adds points” behind your product.

What to do next? It’s simple, contact your trusted supplier and take this smart “hollow elite” home!