Modified Thermal Polyacrylonitrile Fiber

2025-03-25News 1300

Reasons for recommendation

The fiber has antibacterial,far-infrared, heat-generating, and

moisture-absorbing properties.Because of its incredibly low thermal

conductivity, its products are exceptionally warm.

Preparative technique

Acrylon staple fibers are evenly packed into a reactor, where the acid transformation reaction is triggered by the addition of specially produced additives at a high temperature. And then the modified fibers are cleaned, loosened, dried, and packed.

Features of fibers and finished products

Main Specifications

Staple: 1.33dtexX38mm, 1.67dtexX38mm

Relative Standards

Acrylic staple and tow (GB/T 16602-2008)

Properties of fibers and features of finished products

.Moisture absorption and heat generation and far-infrared heat generation, low thermal conductivity close to air [0.0253W/(m.K)], and excellent thermal protection property.

.Outstanding moisture regain rate, excellent anti-static properties, and anti-pilling,Long lasting and efficient anti-bacteria properties.

.Conforms to the standard for Class A products in the Technical Specification for the Safety of Textile Products for Infants and Children, and is fully applicable to matemal and infant products.

Performance indexes of thermal polyacrylonitrile modified fiber

Specifications		Breaking tenacity(cN/dtex)		Elongation at break (%)			Moisture regain (%)	Elongation at break(%)
1.67dtexx38mm		2.02		36.06			11.41	0.20
Fabric testing(100% this fiber)
Thermal conductivity W/(m·K)	Maximum temperature rise value after moisture-absorbing(℃)		Far-infrared radiation temperature rise value(℃)	Infrared emissivity	Far-infrared radiation temperature rise value (℃)	Antibacterial rate (after 150 times of washing,%)	Anti-pilling (grade)	Static half-life HDT
0.0253	Maximum temperature rise: 5.6 Average temperature rise within 30 minutes: 3.1		3.8	0.92	2.1	Escherichia coli: 97 Staphylococcus aureus:99 Candida albicans:98	4~5	<10

The downstream application guidance

Weaving: It can be blended with wool, cashmere,acrylon, viscose fiber, cotton, dacron, chinlone and other yarns, directly used for weaving woven or knitted fabrics, and can also be blended with a variety of fibers to produce filler wadding,nonwovens and other fillers.

Dyeing: Acid dyes are recommended.

Post-finishing:The post-setting temperature is recommended to be below 160℃.

Application of fibers

Clothing textiles：Home wear/Lingerie/Socks/Shoe materials

Home textiles：Filler

Industrial textiles：Outdoor products /Sleeping bag

Examples of downstream applications of modified thermal polyacrylonitrile

Terminal field	Raw material ratio	Fiber specification	Properties ofthe product
Hats and scarfs	50% expanded acrylon/50% thermal polyacrylonitrile modified fiber	1.33dtexX38mm	Anti-bacteria,moisture absorption heat-generation,far-infrared health care,anti-static,anti-pilling and thermal
Shoe materials	50% dacron/50% thermal polyacrylonitrile modified fiber
Socks	70% crude bamboo fiber/30% thermal polyacrylonitrile modified fiber
Thermal underwear	60% acrylic/40% thermal polyacrylonitrile modified fiber
Towels	70% cotton/30% thermal polyacrylonitrile modifed fiber
Jackets	Summer: 70% lyocell/30% thermal polyacrylonitrile modified fiberSpring,Autumn and Winter:60% lyocell/40% thermal polyacrylonitrile modified fiber

Q: What is the antibacterial principle of thermal polyacrylonitrile modified fiber?

A: Thermal polyacrylonitrile modified fiber achieves various functions by grafting a variety of organic functional groups in the fiber molecular chain, in which the antibacterial functional group is embedded in the fiber chain through molecular synthesis, forming a charged environment on the fiber surface, which will destroy the reproduction of bacteria, so that most of the colonies can’t stay and escape.Meanwhile, the N-terminal end of this organic group is in contact with the cell

membranes of bacteria/viruses, which embedded in and disturbed the cell membrane structure of the bacteria/viruses, realizing the contact sterilization effect.