Where Does Polar Fleece Come From?

I. Origin: From the Laboratory to the Outdoor Revolution
Polar Fleece originated from the innovative research and development of Malden Mills in the United States in the late 1970s. The company was originally famous for producing military uniforms, but later turned to researching wool-like polyester fibers, aiming to develop a fabric that is both warm and breathable and can maintain performance after getting wet. In 1981, the first generation of Polartec® Polar Fleece was launched. It completely changed the outdoor clothing industry through its moisture-wicking and quick-drying properties, and was hailed as "one of the 100 Greatest Inventions" by Time Magazine.

II. Materials and Production Process: Technological Reshaping of Polyester Fiber
1. Raw Materials: Polar Fleece is mainly made of polyester fiber (Polyester), and recycled polyester (Recycled PET) made from recycled plastic bottles has now become an environmentally friendly trend.
2. Production process:
- Weaving: Using large circular knitting technology to form a small ingot structure base fabric;
- Finishing: After dyeing, napping, combing, shearing, shaking and other complex processes, ensure that the fluff is fluffy, dense and not easy to pilling.
3. Performance advantages: lightweight (50% lighter than wool), high warmth retention (still effective in humid environments), breathable and quick-drying, becoming the core material of outdoor brands such as Patagonia and The North Face.

III. Industry application: from outdoor equipment to mass consumption
1. Functional clothing: widely used in fleece clothes, gloves, sleeping bag linings, etc., to meet the needs of extreme environments such as mountaineering and skiing.
2. Home and fashion: Due to its soft touch, it gradually extends to the field of blankets and home clothes; fast fashion brands integrate it into daily wear through printing and cutting.
3. Industry and environmental protection: The application of scenes such as automotive interiors and pet supplies has increased, and the proportion of recycled materials has increased (such as the Polartec® Classic 100 series contains 50% recycled polyester).

IV. Global supply chain and technological innovation
1. Manufacturing center: China (such as Taihui Knitting) has become the world's main producer of polar fleece with a complete industrial chain, accounting for more than 60% of annual output.
2. Technology iteration:
- Composite process: Combined with windproof membrane (such as GORE-TEX) to enhance multifunctionality;
- Smart fabrics: Add antibacterial and antistatic coatings to expand medical and special industry applications.

V. Sustainable future: challenges and opportunities
Although the problem of polar fleece's dependence on petrochemical raw materials still exists, the industry is promoting green transformation through closed-loop recycling systems (such as Patagonia's Common Threads program) and bio-based polyester research and development.