Iridescent Rainbow Silk PLA Filament 1.75mm 1kg Starry Sky

Brand: Yiqiu3D · Model: PLA+Silk Gradient Rainbow Starry Sky · Flat single-colour silk prints all look the same on a retail shelf. This gradient rainbow silk changes hue continuously along the print, so one spool produces a shifting iridescent starry effect across the model, and showpieces photograph well straight off the build plate without any post-processing.

  • Gradient filament is unforgiving: a diameter swing shifts the colour banding mid-print and ruins a long job. This spool holds 1.75mm diameter tolerance with stable melt flow
  • Colour transition length is the first question every buyer asks
  • Inconsistent colour sequence between spools is the main complaint on gradient filament
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Diameter 1.75mm
Material PLA
Quick Answer

How does the iridescent rainbow effect work in Silk PLA?

The filament carries a gradient colour sequence along its length, so the printed colour shifts continuously as the spool feeds, while the silk PLA polymer gives the surface a glossy, starry sheen. The base material remains PLA plastic; the iridescent look is a colour and surface effect, not a metal, glass or stone material.

Full answers below

Is it right for my project?

Best for: For showpieces and retail displays that photograph well without post-processing - available in 9 colours; 1kg spools. Not ideal for: Not for outdoor signage - UV dulls the finish; switch to ASA instead - available in 9 colours; 1kg spools.

Print settings

Nozzle 200-225°C · Bed 50-60°C

01 · Why this one

Product highlights

3 reasons

Gradient filament is unforgiving: a diameter swing shifts the colour banding mid-print and ruins a long job. This spool holds 1.75mm diameter tolerance with stable melt flow, so the colour transition stays even and the extruder grip does not slip. It prints at 200-225 C on a standard FDM printer with a 0.4mm nozzle.

Colour transition length is the first question every buyer asks, so each dye lot is run on a reference print before packing and the 200-225 C window is fixed for the series. Keep the same temperature and layer height on repeat orders so the banding pattern repeats predictably instead of drifting between batches.

Inconsistent colour sequence between spools is the main complaint on gradient filament, and it breaks multi-part assemblies. This series is wound with in-line diameter gauging, one dye lot per run, and every spool is vacuum sealed, so re-orders keep the same colour order and the same sheen.

Technical Data

Specifications

Diameter 1.75mm
Material PLA

Print Profile

Iridescent Rainbow Silk PLA Filament 1.75mm 1kg Starry Sky prints best at 200-225°C nozzle, 50-60°C bed.

Nozzle Temp200-225°C
Bed Temp50-60°C

Spool Specification

Spool details for your feeding and handling setup.

Gross Weight1.3 kg
Lengthapprox. 335m
Spool Size (L×W×H)21 × 21 × 7 cm
Pack FormatPiece
Spool TypeRound Spool

Attributes

Country / Regionchina
HS Code39169050
Item No.iridescent-rainbow-silk-pla-starry-sky
Material PLA
Raw Material PLA
Print Size 1.75mm
Net Weight 1KG
Length approx. 335m
Appearance Round Spool
Before You Ask

Frequently Asked Questions

How does the iridescent rainbow effect work in Silk PLA?
The filament carries a gradient colour sequence along its length, so the printed colour shifts continuously as the spool feeds, while the silk PLA polymer gives the surface a glossy, starry sheen. The base material remains PLA plastic; the iridescent look is a colour and surface effect, not a metal, glass or stone material.
Will it print on my printer without modification?
It runs on standard FDM printers with a 1.75mm path and a 0.4mm nozzle, including Bambu Lab and Creality style machines, and other common desktop printers. No special hardware or nozzle is required; just confirm your printer accepts 1.75mm filament.
What are the recommended print settings?
Print at 200-225 C. Keep the cooling fan moderate so layer bonding holds and the gradient stays smooth, and slow the first layer if your build plate has weak adhesion.
How much filament and how much length is on one spool?
1 kg net filament per spool at 1.75mm diameter, approximately 335 m per spool. One spool is enough for a medium display piece or a batch of small gift items, and the gradient repeats along the full spool length.
What colours are available in this series?
The lead colour is Gradient Rainbow Starry Sky, with the Rainbow Iridescent Starry variant also offered in the same series. The colour list for this listing contains 9 entries; share the colour names you need and we confirm availability per order.
What should I print with iridescent silk filament?
Showpieces, retail displays, cosplay props, home decor and gift items where the colour-changing finish adds value. It is not the right grade for load-bearing parts or outdoor signage, where UV exposure dulls the finish and a weather-resistant material is a better fit.
How do I store the spool and how is it packed?
Each spool is vacuum sealed before shipment to keep moisture out. Once opened, keep the spool closed with desiccant, store below 30 C and below 50 percent relative humidity, and re-seal partly used spools. Avoid heat sources and direct sunlight, which fade the gradient over time.

Documentation & Downloads

Everything we publish for this material, in one place.

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