Fine denier polyimide fiber

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.

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.

Fine denier polyimide fiber

Recommendation Reasons

The polyimide fiber (0.89dtex) prepared by breaking through the fine denierhas excellent spinnability, and can spin 100S high count yarns, which has the functions of warm-keeping, bacteriostasis, and far infrared, creatively applying aerospace materials to clothing.

Processing Technology

By designing a reasonable polyimide structure and discussing in detail the pre-spinning and post-drafting processes, the polyamic acid solution obtained after the polymerization of dianhydride and diamine was spun, and after drafting, washing, oiling, drying, and high- temperature cyclization, the polyimide fiber with excellent performance was finally obtained.

Characteristics of Fiber and Product

Main Specifications

Staple Fiber:0.89~6.67dtex/38~64mm

Standards and Certifications

Polyimide staple fiber (GB/T 33617-2017)

Fiber Performance and Product Features

.Antibacterial, anti-mite, non-allergenic

.Low thermal conductivity, good warm-keeping effect, native far infrared

function, lightness and easy washing and maintenance

.High limiting oxygen index, essential fire resistance,non-molten drop

when in contact with fire, self-extinguishing when out of fire, extremely

low smoking rate, and no halogen

.Long-term temperature resistance of 300℃, which can withstand higher short-term high temperature

Specifications	Dry breaking strength(cN/dtex)	Thermal decomposition temperature (T 5%)	Thermal conductivity coefficient(3000)
0.89dtex/51mm	>4cN/dtex	570℃	0.03W/(m.k)
Limiting oxygen index	Antibacterial rate	Mite removal rate	Dry thermal shrinkage
>38	≥99	71.84	<0.3

The downstream application guidance

Yarn spinning: The unique superfine fiber can be spun alone and blended with other varieties.

The use proportion of fine denier polyimide fiber can be added according to customer’s

requirements, and the minimum addition amount is suggested to be 20~30%.

Weaving: It can be spun into yarn and used to make knitted and woven fabrics

Fiber Application

Clothing textiles：Safety protection suit,Baby clothes,Overalls,Lingerie

Industrial textiles:Military textiles,Filtration products,Fire supplies,Outdoor products

Q: In addition to the application in civil field, how is fine denier polyimide fiber applied in the industrial field?

A: Due to its outstanding thermal stability and chemical and physical properties,polyimide fiber can be used as an extremely efficient filter material in the field of high temperature filter materials. Fine denier polyimide plays an important role in industrial dust and PM2.5 control , and contributes to building a resource-based, economical and environment-friendly society in China.