1、 Foundation: The irreplaceable hardness of high-strength nylon 66 (compared to PA6 and polyester)
High strength, tear resistance, fatigue resistance
The breaking strength is much higher than that of ordinary nylon 6 and polyester; Resistant to repeated stretching and impact, not easily broken, suitable for webbing, ropes, tents, luggage fabrics, high-strength sewing threads, and safety protective fabrics. The strength attenuation is slow under long-term alternating loads, and the service life of outdoor equipment and fixtures is longer.
Outstanding fiber wear resistance
Wear resistance is the first tier of common synthetic fibers, suitable for frequent friction scenarios: backpack fabrics, shoe materials, lifting straps, industrial filter cloth.
Better heat resistance and dimensional stability
The melting point is about 255-260 ℃, which is more thermally stable than PA6; The thermal shrinkage is controllable, and it is not easy to deform significantly after dyeing, coating, and composite. The fault tolerance of the subsequent film coating and PU coating processes is high.
Good elasticity and toughness
The force can be moderately extended, and the rebound is excellent after the external force is released, without being as hard and brittle as polyester; The fabric is made soft and not stiff.
Summary: As long as the product requires load-bearing, tear resistance, and long-term wear resistance, PA66 should be given priority over cheaper PA6 or polyester.
2、 Key: Why choose 'semi extinction' instead of light and full extinction?
Half extinction=adding a small amount of TiO ₂ extinction agent during spinning, causing diffuse reflection of light; The intuitive difference among the three:
Light fiber: mirror reflection, strong plastic feel, glaring under sunlight, most outdoor, workwear, tactical fabric customers do not accept;
Fully matte silk: Matte is very heavy, with a dull color tone; A large amount of matting agent added will slightly reduce fiber strength, affect spinnability, decrease dyeing brightness, and result in higher raw material costs;
Semi matte silk (preferred by mainstream industry)
Soft light, high-end and not dazzling
There is no cheap plastic brightness, and the matte soft light texture is suitable for submachine jackets, tactical fabrics, bags, tents, and workwear, which is also the mainstream aesthetic in the current market.
Minimal loss of mechanical properties
The amount of matting agent added is low, and compared to full matting, it retains better strength and elongation at break, meeting the "high strength" index.
Balanced staining expression
Uniform coloring, natural color light, steady dark colors, and soft bright colors; Light is prone to producing "stripe auroras" with low saturation of total extinction.
Weaving is more friendly with fewer broken ends
Compared to full extinction, there are fewer impurities inside the fibers, making high-speed water/air jet weaving, twisting, and winding production smoother and reducing downtime losses.
3、 Practical advantages of factory production end (weaving/dyeing and finishing)
Extremely strong compatibility, covering a wide range of categories
Fabric factory, ribbon factory, and thread factory can simultaneously accept orders for one type of yarn: outdoor tent fabric, backpack fabric, mountaineering ribbon, high-strength sewing thread, workwear, tactical fabric, umbrella fabric, industrial tarpaulin, reducing the pressure of stocking raw material categories.
Post sorting adaptation
Waterproof PU coating, TPU composite, flame retardant, UV resistant, moisture wicking and other functional finishing are stable, and are not prone to uneven gloss and foaming.
Stable supply and demand, complete specifications
The commonly used deniers such as 150D/210D/420D/630D/840D have matured in mass production, and are stably supplied by multiple domestic chemical fiber factories with controllable delivery times.
4、 Market and Cost Logic
Moderate positioning, better product premium space
Both are high-strength PA66:
There is a low price, but the product level cannot be improved; The full extinction texture is top-notch, but the raw materials are expensive, the loss is large, and the terminal price is too high, with a narrow audience;
Half matte belongs to the mid-range high-end universal solution, and customers are willing to pay for the "matte high-end appearance+high strength".
Balancing cost and quality
The performance far exceeds that of PA6 light filament; Compared to full extinction high-strength PA66, the raw material unit price is lower, the weaving loss is smaller, and the overall production cost is optimal.
5、 Typical use of factory categories
Outdoor fabric factory, luggage fabric, ribbon factory, high-strength sewing thread factory, tactical equipment fabric, tent/sleeping bag fabric, safety protection fabric, shoe material weaving factory.
