PBT/PA6 sheath-core composite mono-filament

Extreme collision and iterative upgrade. Delicate and tough fiber bears the exploration and innovation of fiber practitioners.Benefited from the cross of fiber boundary,breakthrough of limit, perfect fusion with the extreme, and the collisions to gain endless possibilities and

amazing charm, each strand shows exquisite skills and ingenuity to realizie hard core protection. Fiber hasbecome more and more lighter, stronger, tougher and resistant to high temperature,

facilitating its use in anti-cutting clothing, shoematerials, fire-fightingclothing, flight clothing,military equipment, urban light box cloth, fluedust removal, wind power blades, aerospace and

other fields. Fiber shows its best accompanying in extreme details and high value in extreme environments.

FIBER

EXTREME UPGRADE

SPECIAL FIBERFORSHOES ANLOTHING

Shoes and clothing are made from special fibers,foreseeing the future with excellent performance.The high cut resistance of carbon fiber and the

high toughness of ultra-high molecular weight polyethylene fiber are perfectly combined to create cut-resistant ultra-high molecular weight

polyethylene fiber products which can effectively shield us from accidental scratches at work,maximizing protection and comfort.PBT/PA6

skin-core composite monofilament, combining the strength and stiffness of polyester with the abrasion resistance and moisture absorption of

nylon, can provide excellent support for shoe upper proprietary materials. Fine denier polyimide fibers, in-situ coloring of para-aramid pioneered

for apparel applications, bringing disruptive experiences to special wear scenarios.para-aramid.

PBT/PA6 sheath-core composite mono-filament

Recommendation Reasons

This fiber, with PBT as sheath layer and PA6 as core layer, combines the

strength and good stiffness of polyester and the abrasion resistance and

moisture absorption of nylon. The fabric has a soft texture and a smoothhand feeling, being widely used in sportswear and shoe uppers. 

Processing Technology

Two raw materials -PBT/PA6 are processed by heating melt extrusion through different screws and enter into the special sheath-core composite assembly.PBT is the sheath layer, while PA6 is the core layer. They are extruded by the nozzle, cooled, oiled, drawn and set to become the composite fiber with high strength.

Characteristics of Fiber and Product

Main Specifications

Filament: 33.3dtex~123.3dtex/1f

Standards and Certifications

Thermoplastic Polyester/Polyamide (PBT/PA6) Composite Mono-filament(JT/QB2019-1)

Fiber Performance and Product Features

.PBT as sheath layer and PA6 as core layer

.Low friction coefficient, fatigue resistant

.High toughness, bending resistance, good elastic resilience

.Good dimensional stability, good wrinkle resistance, soft hand feeling

Specifications	Thread density deviation rate (%)	Thread density variable coefficient(%)	Breaking tenacity(cN/ dtex)	Breaking force variable coefficient(%)
104.5dtex/1f	-1.2	0.14	5.98	4.23
Elongation at break (%)	Variable coefficient of elongation at break(%)	Boiling water shrinkage rate(%)	Oil content (%)
66.9	6.86	14.5	0.26

The downstream application guidance

Weaving: Direct use in knitted and woven fabrics

Dyeing and finishing: The usage temperature of the fiber should not exceed 140℃, and high-temperature and high-pressure disperse dyeing method can be used.

Application instance

Terminal field	Raw material ratio	Count	Main products and properties
Specification	20%-30% skin-core composite mono-filament, 70%~80% dacron mono-filament	18	Used as the shoe upper material of medium and high-end sports shoes to improve durability

Fiber Application

Clothing textiles：sportswear,Shoe materials

Industrial textiles:Sporting goods,Filtration products,Outdoor products

Q: Do you know the application of PBT/PA6 sheath-core composite mono-

filament in textile field?

A:PBT/PA6 sheath-core composite mono-filament uses sheath-core composite

spinning technology to form polyester/nylon composite fiber, which has the strength and good stiffness of polyester, as well as the abrasion resistance, moisture absorption and soft hand feeling of nylon. The textile produced by this fiber has soft texture and smooth hand feeling, and can be widely used in sportswear and shoe uppers.