Greige Fabric Certification Scope and Restricted Chemical Testing Protocols
Greige fabric certification demands batch testing of sizing agents, spin finishes, and biocide residues before finishing treatments mask regulated chemicals.
Mineral Oil Lubricants
Hydrocarbon Finish
Petroleum-based processing aids assist in the spinning and knitting of synthetic yarns by providing a stable surface film. The application of mineral oil lubricants reduces the friction between the yarn and the metal guides, preventing filament breakage and static electricity. These fluids are chosen for their chemical neutrality and their ability to remain liquid at various operating temperatures.
Emulsification Property
Removal of the residue is a necessary step before the fabric can be dyed or printed. Most industrial mineral oil lubricants contain surfactants that allow the hydrocarbon to mix with water during the scouring stage. If these oils are not fully removed, they create hydrophobic areas that reject water-based dyes and cause uneven coloration.
Safety Regulation
Occupational health standards limit the exposure of factory workers to oil mists generated by high-speed machinery. Refined mineral oil lubricants must be free of polycyclic aromatic hydrocarbons to meet modern environmental and skin-safety criteria. Regular monitoring of the air quality in knitting rooms ensures that the concentration of airborne droplets stays within safe limits.
Performance Stability
Oxidation resistance prevents the oil from turning yellow or becoming gummy when exposed to heat or light. Correct selection of mineral oil lubricants protects both the machinery and the textile from long-term damage.