The core advantages of Jiangsu Mizlion nano-dispersed color masterbatch/function masterbatch in the application of nylon (PA6/PA66) fibers 

Relying on the patented technology of nano wet grinding combined with nylon-specific silane interface coating, it directly addresses the five major industry pain points of nylon filament spinning - high temperature-induced degradation, pigment agglomeration blocking, fiber strength decline, color difference, and yellowing. It is suitable for the full-line mass production of civilian nylon filaments, ultra-fine denier, industrial high-strength nylon, recycled nylon, and island nylon. 

1、Core nanoscale dispersion technology, compatible with nylon high-temperature spinning system 

1、Nano-sized pigment refinement eliminates filamentation black spots, crystal spots, and blockage of the spinneret. Wet grinding controls the D50 of the pigment to ≤ 180nm. The monomolecular dispersant completely encapsulates it, without micrometer-sized agglomerates. In PA66 filament spinning at temperatures ranging from 280 to 300°C, there is no secondary agglomeration, the pressure rise rate of the component slows down significantly, the cleaning cycle is extended by twice, and it perfectly suits 0.3mm microporous spinnerets and ultra-fine denier nylon production.

2、The same-series PA carrier + high-temperature antioxidant composite system solves the yellowing and degradation of nylon at high temperatures.

The PA6 and PA66 specific carrier formulas have precise viscosity and sheet matching; the compounded high-temperature hindered phenolic antioxidant inhibits the chain breakage due to high-temperature oxidation, preventing nylon filaments from yellowing and strength reduction, and the recycled rPA filament spinning can also stabilize color and material properties.

3、Special amide compatibility modification, no layering, no melt striations.

The pigment surface is grafted with epoxy silane, enhancing the bonding force between inorganic powder and the polar matrix of nylon. Under high addition ratios, the melt is uniform, the CV value of the streak is significantly reduced, and no polar color or color stripe defects are produced. 

II. Spinning Production End: Significantly increase uptime and reduce overall losses 1

1、Exceptionally high spinnability, suitable for high F-number, ultra-fine, and high-strength industrial nylon. Stable production of 70D/68F high F-number DTY, 0.5D ultra-fine nylon, high-strength industrial fibers, and island fibers; masterbatch with 5%–10% no-stretching and less hairiness, with a 60% reduction in broken filament and waste filament rate, and continuous stable operation of high-speed spinning.

2、 Extremely low color change loss, flexible multi-variety production

Nanopowder has no pipe wall residue, and the switching time for light and dark colors is shortened by 70%, significantly reducing color change waste filaments and scraps, suitable for small-batch multi-color orders of nylon fabrics.

3、Compatible with both pellet spinning and direct addition in pipelines processes

The viscosity matches the dynamic mixer for direct injection of nylon melt, no need to modify the spinning equipment; it can also be pre-mixed with pellets for feeding, suitable for new and old production lines of chemical fiber factories. 

III. Advantages of nylon fiber product quality: Direct dyeing of the raw material instead of printing and dyeing 

1. High color intensity with extremely small batch-to-batch color variation. The amount of pigment added for the same color depth is 20% less than that of ordinary masterbatch. The batch-to-batch color difference ΔE is ≤ 0.3. The nylon black filament has a high blackness without grayish tinting, and the colored fabric is saturated and transparent without local color differences.

2. Excellent color fastness, resistant to washing, friction and sunlight without migration. The pigment is locked inside the fibers, and it can withstand 4-5 grades of washing, friction and sunlight. It does not fade or bleed during multiple hot water setting, and does not lose color after washing. It eliminates the need for post-processing printing and dyeing, and there is no dye migration that contaminates the fabric.

3. Completely retains the toughness and strength of nylon, without reducing the mechanical properties. The dispersion system does not disrupt the entanglement of nylon molecular chains. After coloring, the tensile strength, wear resistance and fatigue resistance basically do not suffer any loss. It is suitable for high-stress scenarios such as climbing ropes, fishing nets, car safety belts, and elastic nylon. 

4. Nylon-specific integrated functional masterbatch matrix, achieving coloration and modification in one step. 

It enables the combined dyeing and functional spinning, reducing the number of secondary processing steps and meeting the full range of differential fabric requirements for nylon:

 1、Long-lasting Antimicrobial Masterbatch (Silver/Zinc Series): 2% - 4% low addition, AAA-level antimicrobial, 50 washes retain antibacterial rate ≥ 99%, suitable for underwear, sport nylon, and medical dressings, maintaining activity at high temperature spinning.

2、Halogen-Free Flame Retardant Masterbatch: Compatible with nylon spinning, low addition reaches V0, does not reduce fiber strength, suitable for automotive interiors and safety protection fabrics.

3. Anti-static/Conductive Masterbatch: Eliminates static electricity and dust adsorption in nylon, specifically for industrial filter cloths, work clothes, and conductive safety wires.

4. Coolness, UV Resistance, Abrasion Resistance and Smooth Masterbatch: For outdoor nylon, sun-protective clothing, and quick-dry sports fabrics, reduces fabric friction coefficient and improves feel.

5. Gloss Reduction, Anti-yellowing Special Masterbatch: Solves the problem of light-colored nylon yellowing at high temperatures, and stable mass production of matte synthetic nylon. 

V. Environmental Compliance and Compatibility with Recycled Nylon Benefits 

1. The raw liquid coloring zero-dyeing wastewater reduces the cost of sewage discharge.

By eliminating the dyeing process, the COD and color discharge are nearly zero, which complies with the policy of non-dyed fibers for chemical fibers, reduces the carbon footprint, and meets the requirements of carbon accounting for exports.

2. Comprehensive environmental protection certification, suitable for global trade

Halogen-free, no APEO, low heavy metals, meet OEKO-TEX and ZDHC standards. There is no worry about export orders for nylon fabrics to Europe, Southeast Asia, Turkey, etc.

3. Compatible with recycled rPA chips for spinning

Antioxidant dispersion synergistic formula neutralizes impurities and aging yellowing problems of recycled materials, solves the problems of uneven coloration and reduced strength of recycled nylon, and helps enterprises apply for the qualifications of recycled fibers. 

VI. Comprehensive Application and Supporting Services 

Application coverage 

Civilian nylon: FDY/POY/DTY elastic yarns, ultra-fine underwear fabrics, sports quick-drying fabrics, home textiles;

Industrial nylon: automotive seat belts, industrial high-strength yarns, fishing nets, filter non-woven fabrics, safety protection fabrics;

Recycled nylon: bottle chips/edge waste recycled spinning;

Differential fabrics: island ultra-fine fibers, matte nylon, antibacterial functional fabrics. 

On-site service 

In conjunction with domestic nylon-head enterprises for mass production verification, we offer on-site spinning process debugging, color difference control, and formula customization services. We can also develop high-concentration, colored + functional composite masterbatches as per customer requirements. 

VII. Comprehensive Economic Value 

1. High color intensity reduces the purchase volume of masterbatches;

2. Fewer machine stops and less waste yarn, reducing water, electricity and labor costs;

3. Direct dyeing eliminates the processing fees for printing and dyeing and the costs for sewage treatment;

Overall, the production cost per ton of nylon fibers decreases by 7% - 14%, and the premium margin for high-end functional fabrics significantly increases. 

Jiangsu Mizlion, relying on its core technology of nano-wet dispersion, specially designs color mother liquors and functional granules for PA6/PA66 nylon fibers, aiming to address industry pain points such as yellowing during high-temperature spinning of nylon, pigment agglomeration blocking plates, fiber strength reduction, and color difference.

The nano-sized powder is evenly dispersed without crystal points or black spots, extending the cleaning cycle of the spinneret plates, suitable for ultra-fine denier, high F-number, and high-strength industrial nylon high-speed spinning. The breakage and waste of fibers are significantly reduced, and the loss of deep and light color change waste is low.

Using nylon homologous carriers and high-temperature antioxidant systems, it completely retains the tensile and wear-resistant mechanical properties of nylon. The color difference of the original liquid coloring batches is ΔE ≤ 0.3, and the water washing and sun exposure fastness reaches 4-5 grades. It replaces traditional printing and dyeing and has no wastewater discharge.

It provides one-stop functional mother liquors with antibacterial, flame retardant, anti-static, cool feeling, and UV resistance properties. They can be colored and modified in one step for molding. The products comply with OEKO-TEX and ZDHC environmental standards, are compatible with recycled nylon and global export orders, effectively reducing the overall production costs of chemical fiber factories and enhancing the market value of nylon fabrics.

Contact and negotiation: Ms. Wang 1500510923

Nylon microfiber dye masterbatch product introduction: Dye pre-dispersed bright color solution

Nylon microfiber dye masterbatch  core characteristics:

Acid dye/metal complex dye carrier

Color brightness is 20% higher than pigment system

Dry cleaning resistance level 3-4

Dispersion technology: Three-roller grinding + twin-screw extrusion process is used to ensure that the pigment particle size is ≤300nm

Function expansion: Antibacterial, cool, far infrared and other functional modules can be superimposed

Nylon microfiber dye masterbatch  typical applications:

High-end women's stockings

Temporary stage costumes

Decorative rainbow yarn

Technology platform advantages

Jiangsu Mizhilin Nano Technology Co., Ltd. official website http://www.mizlion.com The company focuses on: the research and development and production of masterbatches, polyester masterbatches, nylon masterbatches, polypropylene masterbatches, polyethylene masterbatches, PLA masterbatches, and functional masterbatches.