Rare Earth Modified Thermall storage Polyamide 6 Fiber

2025-03-25News 460

Reasons for recommendation

Overcoming the color restrictions of heat-generating and energy-

storage fibers, obtaining fine-denier spinnability, producing good

temperature-rising and photo-thermal storage effects, and integrating

with the whiteness of the fibers.

Preparative technique

Rare earth functional powders are blended in varying proportions to prepare rare earth composite functional master batches, which are blended with polyamide 6 chips and prepared into the fiber by melt spinning process.

Features of fibers and finished products

Main Specifications

Filament: 22dtex/24f, 22dtex/17f,22dtex/8f DTY

Relative Standards

Polyamide 6 drawn textured yarn(FZ/T54007-2019)

Properties of fibers and features of finished products

·Fine denier and functional fiber, with rare earth added for

modification.

·light source heat generation and storage, far-infrared heat

generation, high-temperature rise value.

· highly efficient and long-lasting anti-bacterial properties, with an

anti-bacterial rate of more than 85% for staphylococcus aureus,

escherichia coli and candida albicans.

·The fabric is moisture-absorbing, breathable, anti-wrinkle and abrasion resistant.

Performance indexes of rare earth modified thermal-storage polyamide 6 fiber

Specifications	Dry fracture strength (cN/dtex)	Elongation at break (%)	Variable coefficient of break tenacity(%)	Coefficient of variation of elongation (%)	Boiling water shrinkage(%)
22dtex/24f	4.34	45.09	3.50	5.10	11.39
Fabric testing (43% this fiber /57% conventional polyamide 6 fiber)		Fabric testing (96% this fiber /4% other fibers)
Light-absorbing and heat-generating performance (℃ after being exposed to 500W spotlight for 20 minutes)		Light thermal storage performance (400±10)W/m²	Far-infrared radiation temperature rise value (℃)	Far-infrared emissivity	Antibacteria rate (9%)
Temperature rise in 20 minutes:57.80	Temperature difference in 20 minutes: 13.00	Maximum temperature rise:13.2° C, average temperature rise:7.4°C	2.3	0.94	Staphylococcus:98Escherichia coli:96Candida albicans: 90

Examples of downstream applications of rare earth modified thermal-storage polyamide 6 fiber

Types of Fabric	Specifications	Properties
Jacket lining,fabrics (weaving-based)	50% conventional polyamide 6 fibers/50% rare-earth modified thermal-storage polyamide 6 fibers	It is used in down jacket lining or down jacket, winter jacket lining,windbreaker lining, etc. In addition to being softer and more comfortable, it has minimal friction and infrared heating, effectively maintains body temperature,and is AAA anti-bacterial.
Close-fitting fabrics (woven or knitted)	70% rare earth modified thermal-storage polyamide 6 fiber/30% elastane	Used in household clothing, intimate apparel, yoga wear, etc.Soft and skin-friendly, infrared heating, efficiently maintaining body temperature,AAAantibacterial, with human health care function.
Close-fitting fabrics (woven or knitted)	40% modal/40% rare earth modified thermal-storage polyamide 6/20% elastane
Outdoor supplies	55% conventional polyamide 6 fibers/45% rare-earth modified thermal-storage polyamide 6 fibers	Usable in outdoor tents, sleeping bags, etc., lightweight and easy to carry, long service life, having the dual effect of infrared heat-generation and light-absorbing heat storage,AAA anti-bacterial.

The downstream application guidance

Weaving: Can be interwoven or wrapped with other fibers.

Dyeing: Referring to conventional polyamide 6 fiber.

Application of fibers

Clothing textiles：Down jacket/White pants/Thermal underwear/Business Shirt

Q: What is the principle of rare earth thermal storage and temperature rise?

A: Due to the resonance effect between rare earth particles and light radiation,rare-earth particles can efficiently absorb near-infrared light, and have superior photo-thermal storage performance to achieve the effect of external warming. Meanwhile, rare earth particles can absorb the far-infrared radiation emitted by the human body and efficiently reflect it back. Thus, the fiber and the human body form a thermal cycle effect to prevent the loss of human heat. The absorption of far-infrared rays by the skin can accelerate the movement of water molecules in the cells, allowing internal heating of the human body.