Speck-free fine dispersion
Thin film reveals every agglomerate as a speck or gel, so pigments must disperse to a very fine, uniform level.
Applications
Pigments for Film Extrusion
Pigment recommendations for film extrusion with technical checks and export enquiry support.
Film extrusion, whether cast or blown, produces thin plastic film where pigment dispersion quality is decisive because any agglomerate shows as a speck, gel or weak spot. Organic pigments must disperse to a very fine level, be heat stable for the extrusion melt, and, in flexible film, resist migration to avoid blooming and set-off. Buyers should confirm speck-free dispersion at thin gauges, low-migration grades for packaging film, heat stability matched to the resin, and, for outdoor or agricultural film, weather fastness compatible with the stabiliser package.
At a glance
What Pigments for Film Extrusion covers
Migration and set-off
Flexible film lets pigment migrate, so specify low-migration grades to prevent blooming and colour transfer between wound layers.
Melt heat stability
Match the pigment's heat rating to the extrusion melt so colour holds through processing without shade shift or degradation.
Weatherfast outdoor film
Agricultural and construction films need weatherfast pigments compatible with UV stabilisers so colour lasts the intended outdoor lifetime.
Recommended pigments
High-demand grades to consider
A starting shortlist of export-grade organic pigments relevant to Pigments for Film Extrusion. Open any grade for shade, fastness and packing detail, or send your requirement for a matched recommendation.
Red Pigments
Pigment Red 57:1
PR57:1Barium lake red widely used in ink and coating formulations.
View export grade Violet PigmentsPigment 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 gradeExplore more
Related pages & export hub
Answers
Pigments for Film Extrusion — frequently asked questions
Why is dispersion so critical in film extrusion?
Film is very thin, so any undispersed pigment agglomerate appears as a visible speck and can create a gel or mechanical weak point. Excellent dispersion, usually from quality masterbatch, is essential. In film, dispersion quality often matters as much as the pigment chemistry itself for a clean result.
What is set-off in coloured film and how is it prevented?
Set-off is pigment transferring from one wound film layer to the next, or blooming to the surface, causing marks and contamination. It stems from migrating pigment. Selecting low-migration, high-molecular-weight grades keeps colour in the film and prevents transfer between contacting layers on the roll.
Does cast film differ from blown film for pigments?
The core pigment requirements, fine dispersion, heat stability and low migration, apply to both. Differences lie in process temperatures and stretch, which can affect how specks and colour uniformity appear. Confirm the pigment suits your specific film line, but the fundamental selection criteria stay consistent.
How should outdoor film colour be specified?
For agricultural and construction films, specify weatherfast pigments that resist a season or more of UV, and confirm compatibility with the UV stabiliser and antioxidant package. Pigment and additive interactions can shorten film life, so validate the whole formulation under realistic outdoor exposure before committing.
Buyer knowledge base
Pigments for Film Extrusion: a quick sourcing guide
From enquiry to repeat order — the practical steps of specifying, approving and re-ordering organic pigments from India.
Repeatable batches
Shade and strength held to approved reference standards, order after order.
Samples before bulk
Evaluation samples with documents so QA and R&D approve shade and strength first.
Clear commercials
MOQ, lead time, Incoterms and packing agreed up front, before sampling begins.
Heat-stable options
High-performance grades hold shade through hot processing and demanding cure schedules.