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Provides durable, wash-resistant flame retardancy for polyester fabrics through covalent bonding with fiber substrates.
Meets stringent international flammability standards including EN ISO 15025 (Type 1 & 2) and NFPA 701 after 50+ industrial launderings.
Non-halogenated, phosphorus-nitrogen synergistic chemistry ensures low smoke density and reduced toxic gas emission during combustion.
Excellent compatibility with common polyester dyeing and finishing processes—no adverse impact on colorfastness or fabric hand feel.
Low environmental footprint: APEO-free, REACH-compliant, and formulated without formaldehyde or heavy metals.
Workwear for oil & gas, electrical utilities, and petrochemical industries requiring permanent FR protection.
Contract textiles including drapery, upholstery, and wall coverings for hotels, hospitals, and public transport interiors.
Military and defense uniforms where long-term durability under repeated laundering is critical.
Firefighter station wear and auxiliary protective garments not subjected to direct flame exposure.
High-performance sportswear and outdoor apparel requiring both flame resistance and moisture management.
| Chemical Type | Phosphorus-nitrogen reactive oligomer |
| Product Form | Clear to pale yellow liquid |
| Appearance | Homogeneous aqueous solution |
| pH (1% aqueous solution, 25°C) | 5.5 – 6.5 |
| Solubility | Completely miscible with water |
| Storage Stability | ≥12 months at 5–30°C in sealed original container |
| Primary Applications | Exhaust and pad-dry-cure application on PET and PET/cotton blends |
| Key Features | Permanent FR effect, high thermal stability (>220°C), low VOC content |
Q1: What makes LFR-2002 “permanent wash” for polyester fabrics?
A: LFR-2002 is chemically designed to bond covalently with polyester during high-temperature dyeing or thermofixation processes, enabling exceptional retention of flame retardancy after repeated industrial laundering and domestic washing cycles — unlike topical or add-on treatments that leach out over time.
Q2: Is LFR-2002 compatible with common polyester dyeing auxiliaries and disperse dyes?
A: Yes — LFR-2002 demonstrates excellent compatibility with standard disperse dyes, leveling agents, carriers, and pH buffers used in polyester dyeing. It remains stable under typical acidic dyeing conditions (pH 4.5–5.5) and does not interfere with color yield or fastness.
Q3: How is LFR-2002 typically incorporated into the polyester processing workflow?
A: It is most commonly added directly to the dye bath during high-temperature (120–130 °C) exhaust dyeing or applied via thermofixation post-dyeing. Its liquid formulation ensures uniform dispersion and avoids filtration issues often associated with solid FR additives.
Q4: Does LFR-2002 affect fabric hand feel, tensile strength, or color stability?
A: When applied within recommended process parameters, LFR-2002 has minimal impact on fabric handle, mechanical integrity, or hue consistency. It does not yellow under normal curing conditions and maintains compatibility with UV stabilizers and antistatic agents commonly used in performance polyester blends.
Q5: Can LFR-2002 be used on polyester blends, such as polyester/cotton or polyester/viscose?
A: LFR-2002 is optimized for 100% polyester substrates. While it may deposit on blended fabrics during dyeing, its permanent fixation mechanism relies on polyester’s thermal reactivity — therefore, flame-retardant performance on cellulosic fibers in blends is not assured and requires separate evaluation and complementary treatment strategies.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
