What are bicomponent fibers?
Bicomponent fibers are created when two distinct polymers are extruded together to create a fiber. Both the polymers used and their geometric arrangement can be changed based on the desired property profile. The geometry of our bicomponent fibers is sheath-core. A sheath composed of a polymer with a lower melting point, like PE or Co-PET, envelops a high-melting PET core. When utilized as a binding fiber, the sheath polymer can be melted while a nonwoven is thermally bonded without causing the fiber core to soften. Consequently, a solid network with defined porosity is created when the softened sheath polymer flows to fiber crossing locations and connects them after cooling.
Benefits of BiComponent Fiber
- High final product strength and robust fiber bonding
- The binding process can regulate porosity.
- Excellent workability
- No liquid binders are used.
Drawbacks of BiComponent Fiber
- Limited capacity to be recycled
- Nonwoven is thermally stable only within the sheath polymer’s softening range.
Production process of bi-component fiber
Melt spinning is used to create bicomponent fibers. High-quality manufacturing depends on the spinneret’s geometry and design as well as the two polymer components’ independent supply to the spinneret. Only after or just before exiting the spinneret do the polymer components come into contact with one another. The fibers are further adapted to the specific purpose in later stages of the process, such as stretching or applying the finish.
Application of BiComponent Fiber
- Lead-acid automobile batteries, brake pads, and friction pads
- Paper: Security, Wallpaper, Decoration, and Special
- Filters for Liquids, Air, and Oil
Color Bicomponent PE/PP Fiber
Color Bicomponent PE/PP Fiber: This bicomponent fiber features a sheath/core concentric structure, with a low melting point sheath made of polyethylene and a core made of polypropylene. It has a standard hydrophilic or durable (permanent hydrophilic) spin finish, and TiO₂ is added to increase the fiber’s whiteness.
Product Technical Specification:
Standard TDS of 2D 38mm Standard Color Bicomponent PE/PP Fiber
| Characteristic | Unit | Min | Max | Test Method | Remark |
| Linear Density | dtex | 2.2 | 2.46 | GB/T14335-2008 | |
| Cut length | mm | 37 | 39 | GB/T14336-2008 | |
| Tenacity at peak | cn/dtex | 2.3 | 2.8 | GB/T6504-2017 | |
| Elongation at peak | % | 140 | 180 | GB/T14337-2008 | |
| Crimp n. | n./inch | 15 | 18 | GB/T14328-2008 | Adjustable |
| Spin finish | % | 0.3 | 0.4 | GB/T6504-2017 | Adjustable |
Bicomponent PE/PP fiber is an ideal material for thermal bonding nonwoven fabrics commonly utilized in hygiene products, including femcare and baby care.
Fiber denier: ~2 dn, ~6 dn,
Main cut length: 38mm or 51mm,
Spin finish: standard hydrophilic or durable (permanent hydrophilic),
Pigment available: green/blue/purple/camel, etc.
Hydrophobic Bicomponent PE/PP Fiber
Hydrophobic BICO PE/PP Fiber: This bicomponent fiber features a sheath/core concentric structure, utilizing a low melting point sheath made of polyethylene and a core composed of polypropylene. It includes a standard hydrophobic spin finish and incorporates TiO₂ to enhance the fiber’s whiteness.
Product Technical Specification
Standard TDS of den 38 mm Standard Hydrophobic Bicomponent PE/PP Fiber
| Characteristic | Unit | Min | Max | Test Method | Remark |
| Linear Density | dtex | 2.2 | 2.46 | GB/T14335-2008 | |
| Cut length | mm | 37 | 39 | GB/T14336-2008 | |
| Tenacity at peak | cn/dtex | 2.3 | 2.8 | GB/T6504-2017 | |
| Elongation at peak | % | 140 | 180 | GB/T14337-2008 | |
| Crimp n. | n./inch | 15 | 18 | GB/T14328-2008 | Adjustable |
| Spin finish | % | 0.3 | 0.4 | GB/T6504-2017 | Adjustable |
We are a supplier of hydrophobic bicomponent PE/PP fiber. This fiber is ideal for thermal bonding in nonwoven fabrics, commonly used in hygiene products, including feminine care and baby care items.
Fiber denier: ~1.5 dn ~ 6 dn,
Main cut length: 38mm or 51mm,
Luster: raw white/semi-dull or full dull,
Spin finish: standard Hydrophobic
Pigment available: green/blue/purple/camel, etc.
Hydrophilic BICO PE/PP Fiber
Hydrophilic BICO PE/PP Fiber: This bicomponent fiber features a sheath/core concentric structure, with a low melting point sheath made of polyethylene and a core of polypropylene. It has a standard hydrophilic or durable (permanent hydrophilic) spin finish achieved by adding TiO₂ to increase the fiber’s whiteness.
Hydrophilic BICO PE/PP Fiber: This bicomponent fiber features a sheath/core concentric structure composed of a low melting point sheath made from polyethylene and a core made from polypropylene. The fiber is available with either standard hydrophilic or durable (permanently hydrophilic) spin finishes, and titanium dioxide is added to enhance its whiteness.
Product Technical Specification
Standard TDS of den 38 mm Standard Hydrophilic Bicomponent PE/PP Fiber
| Characteristic | Unit | Min | Max | Test Method | Remark |
| Linear Density | dtex | 2.2 | 2.46 | GB/T14335-2008 | |
| Cut length | mm | 37 | 39 | GB/T14336-2008 | |
| Tenacity at peak | cn/dtex | 2.3 | 2.8 | GB/T6504-2017 | |
| Elongation at peak | % | 140 | 180 | GB/T14337-2008 | |
| Crimp n. | n./inch | 15 | 18 | GB/T14328-2008 | Adjustable |
| Spin finish | % | 0.3 | 0.4 | GB/T6504-2017 | Adjustable |
We are a good supplier of hydrophilic bicomponent PE/PP fiber, which serves as an ideal material for thermal bonding nonwoven fabrics, commonly utilized in hygiene products such as feminine care and baby care.
Fiber denier: ~1.5 dn ~ 6 dn,
Main cut length: 38mm or 51mm,
Luster: raw white/semi-dull or full dull,
Spin finish: standard hydrophilic or durable (permanent hydrophilic),
Pigment available: green/blue/purple/camel, etc.
