What Is Hot Melt Yarn and Why It Matters Hot melt yarn is a type of thermoplastic filament engineered to soften and flow at a specific temperature range, then ...
READ MOREBio-component yarn is made with two different kinds of material. We use the special machine to design this kind of product.
Usually, we can produce PE plus PP, low melting plus pet, pet plus PE. The product can be customized. We can design the product according to the guest request.
When we use two different materials, the final product can get higher performance.

What Is Hot Melt Yarn and Why It Matters Hot melt yarn is a type of thermoplastic filament engineered to soften and flow at a specific temperature range, then ...
READ MOREThe most eco-friendly yarn available today is Biodegradable Yarn made from PLA (Polylactic Acid), a plant-based fiber that returns to the earth through industr...
READ MOREThermal Bonding Yarn is a heat activated fiber that softens and melts at a set temperature, typically between 80 degrees Celsius and 130 degrees Celsius, then ...
READ MOREFusible Thread is used to bond fabric layers, seal edges, and hold fibers in place with heat alone, replacing liquid glue in seven core textile jobs: seamless ...
READ MOREBio-component yarn is a fiber made by combining two different polymers within a single filament, engineered to deliver properties such as elasticity, softness, durability, and biodegradability that neither polymer could achieve alone, making it a top choice for performance textiles, hygiene products, and sustainable apparel manufacturing.
Bio-component yarn refers to fiber extruded from two distinct polymer types arranged in a fixed cross-sectional configuration, most commonly side-by-side or sheath-core. This dual structure allows manufacturers to combine the strengths of each polymer, for example pairing polyester for strength with polyethylene for low-melt bonding capability. The result is a yarn that behaves differently than single-polymer fibers, often offering self-crimping, thermal bonding, or enhanced softness depending on the polymer pairing and ratio used.
| Structure Type | Description | Typical Use |
| Side-by-Side | Two polymers placed parallel, creating helical crimp due to differential shrinkage | Stretch fabrics, sportswear |
| Sheath-Core | One polymer wraps around a core of the other polymer | Thermal bonding nonwovens |
| Islands-in-Sea | Multiple fine fibers embedded within a dissolvable matrix | Microfiber and suede-like textiles |
| Segmented Pie | Wedge-shaped sections splitting into ultra-fine fibers | Wipes, filtration media |
Manufacturers and brands choose Bio-component yarn for several measurable advantages over standard single-component fibers.
The versatility of bicomponent construction means this yarn type appears across a wide range of finished products.
| Industry | Application Example |
| Hygiene Products | Diaper top sheets, sanitary pads, adult incontinence products |
| Apparel | Stretch socks, activewear, lightweight insulation linings |
| Home Textiles | Pillow fillings, mattress covers, upholstery padding |
| Filtration | Air filters, liquid filtration media using fine split fibers |
| Automotive | Interior trim, sound insulation panels, headliners |
Selecting the correct grade depends on matching the polymer combination and fiber structure to the end application. Consider the following before placing an order.
| Property | Bio-component Yarn | Standard Polyester Yarn | Cotton Yarn |
| Elasticity | High, built-in crimp | Low to moderate | Low |
| Bonding Without Adhesive | Yes, via low-melt sheath | No | No |
| Biodegradability | Available with PLA blends | Very low | High |
| Softness for Skin Contact | Excellent | Moderate | Good but absorbs moisture |
| Cost per Kilogram | Moderate to high | Low | Moderate |
Is bio-component yarn the same as biodegradable yarn
Not always. The term bicomponent refers to the fiber structure containing two polymers, while biodegradability depends on the specific polymers chosen. Some bicomponent yarns use fully synthetic, non-biodegradable polymers, while others incorporate PLA or similar materials that do break down under industrial composting.
Can bio-component yarn be recycled
Recyclability depends on the polymer combination. PE-PET sheath-core fibers can often be processed through standard polyester recycling streams, though separation efficiency varies by facility.
What melting point should I expect from the sheath polymer
Most low-melt sheath polymers used in thermal bonding applications melt between 105 and 135 degrees Celsius, allowing fabric formation without damaging the higher-melting core fiber.
Does bio-component yarn cost more than regular yarn
Typically yes, due to the more complex spinning process requiring dual extruders and precise polymer ratio control. However, the bonding cost savings in nonwoven production can offset the higher raw material price.