Spinneret-safe fineness
Fibre is spun through very fine holes, so pigment must be dispersed extremely fine to avoid blocking filters and breaking filaments.
Applications
Pigments for Fibre Spinning
Pigment recommendations for fibre spinning with technical checks and export enquiry support.
Solution-dyeing or spun-in colouring of synthetic fibres such as polyester, polypropylene and polyamide demands the finest pigment dispersion of any plastics application, because pigment must pass through fine spinnerets without blocking filters or breaking filaments. Pigments also face high spinning temperatures and must give excellent light and wash fastness for the fibre's textile life. Buyers should confirm extremely fine, filter-passing particle size, high heat stability for the polymer's spinning temperature, top light fastness, and, for polyester and polyamide, grades proven at those higher processing temperatures.
At a glance
What Pigments for Fibre Spinning covers
High spinning heat
Polyester and polyamide spin hot, so pigments need strong heat stability to survive the melt without shade shift or degradation.
Top light and wash fastness
Coloured fibre becomes fabric, so specify high light and wash fastness so garments and furnishings hold colour through use.
Spun-in colour durability
Solution-dyed fibre locks pigment inside the filament, giving superior fastness versus surface dyeing, provided the pigment itself is fast.
Recommended pigments
High-demand grades to consider
A starting shortlist of export-grade organic pigments relevant to Pigments for Fibre Spinning. Open any grade for shade, fastness and packing detail, or send your requirement for a matched recommendation.
Violet Pigments
Pigment Violet 23
PV23Carbazole violet for high-strength blue-violet industrial applications.
View export grade Blue PigmentsPhthalocyanine Blue Beta
Pigment Blue 15:3High-strength beta blue for export-grade paints, inks, plastics, and masterbatch.
View export grade Yellow PigmentsPigment Yellow 74
PY74Arylide yellow grade for decorative coatings and water-based systems.
View export grade Red PigmentsPigment Red 170
PR170Strong naphthol red for coatings, plastics, and masterbatch.
View export grade Pigment PastesEpoxy Pigment Paste
Epoxy PasteStable epoxy paste for floor coatings and resin systems.
View export gradeExplore more
Related pages & export hub
Answers
Pigments for Fibre Spinning — frequently asked questions
Why does fibre spinning need the finest pigment dispersion?
Molten polymer is forced through very fine spinneret holes protected by filters. Any oversized pigment agglomerate blocks the filter, raises pressure and breaks filaments, stopping the line. So spun-in colouring requires pigment milled and dispersed to an exceptionally fine, uniform particle size, finer than most other plastics applications.
What advantage does solution dyeing give over surface dyeing?
Solution or spun-in dyeing embeds pigment throughout the filament during spinning, rather than applying colour to the finished fibre surface. This gives superior wash, rub and often light fastness because the colour is locked inside. It also saves water and effluent versus conventional dyeing, provided the pigment is itself fast.
How does polymer choice affect fibre pigment selection?
Polypropylene fibre spins at moderate temperatures but needs non-nucleating grades, while polyester and polyamide spin hotter and demand higher heat stability. Each polymer's spinning temperature and chemistry set the pigment requirements, so grades are chosen and validated specifically for the fibre-forming polymer in question.
What fastness properties matter most for coloured fibre?
Since fibre becomes apparel, carpet and furnishings, light fastness and wash fastness are critical so colour survives daylight and laundering. For outdoor textiles, weather fastness matters too. Because solution-dyed colour cannot be corrected later, the pigment's inherent fastness must be confirmed before spinning at scale.
Buyer knowledge base
Pigments for Fibre Spinning: a quick sourcing guide
How professional buyers de-risk a pigment purchase: sampling, fastness verification, documentation and clear commercial terms.
Compliance on file
REACH and RoHS declarations and correct HS codes prepared for your market's customs.
Trial then commit
Approve shade, strength and dispersion on a sample before any production quantity.
Built for export
25 kg bags, palletised and batch-labelled, cleared under HSN 3204 17 90 for smooth customs.
Dispersion support
Guidance on oil absorption and let-down, plus ready-to-use pastes where direct handling helps.