This listing say iDye Poly in the main listing, but says it is only for cotton? Please explain or revise your listing?

this is for synthetic fabrics. If you have a blend of natural/synthetic fabric, it will only stain the synthetic fabrics, yielding a lighter version of the color. I used this on a pink sweatshirt that was a poly cotton blend. THe black ended up being a medium grey, which is what I set out for. If you have a blend and you want the fabric to dye fully, you will need to use a mix of this product ant the iDye that is meant for natural fabric.

i have a red fleece poncho...will the black poly dye it correctly?

I doubt it. I tried to dye a dark yellow dress black and it is olive green

Can I use this for tie dye? Meaning mix small amounts and different colors and use them from squirt bottles?

Not exactly. Heat is 100% needed for this product to be set in the fabric. You can iron the fabric after the dye has dried after you squirt it on, but that is incredibly time consuming. You should steam instead. Take a look at these DIY steaming instructions. https://static1.squarespace.com/static/5ac4eb022971149bb6d709d3/t/5b3e48858a922db5a565bfc0/1530808455316/Make+Your+Own+Fabric+Steamer+Instructions.pdf

Can i use this to dye an old wedding dress?

This product works specifically for synthetic fabrics. You need to check what kind of fabric your dress is in to have a great result. Types of Synthetic Fibers- Rayon, Nylon, Polyester and Acrylic.

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Idye Polyester Dye: Black

Product ID: 45367833

Details

Brand
Jacquard
Color
Black
Compatible Material
Fabric
Item Form
Powder
Item Weight
0.05 Pounds

⚡Vibrant, lasting color

🖤Dyes 2-3 lbs fabric

🧪Formulated for synthetics

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NZ$23

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Description

🖤 Transform your synthetic fabrics with zero hassle—black never looked this bold!

IDEAL BATCH SIZE - Dyes 2-3 lbs of fabric—perfect for your DIY wardrobe refresh or creative projects.
TRUSTED BRAND QUALITY - From Jacquard, a leader in craft dyes, ensuring consistent, professional results.
EFFORTLESS MACHINE DYEING - Just toss the dissolvable packet in your washer—no mess, no fuss.
VIBRANT FADE RESISTANT COLOR - Achieve bold, long-lasting black that stands out wash after wash.
PERFECT FOR POLYESTER SYNTHETICS - Engineered specifically to transform synthetic fabrics with rich, deep black hues.

iDye Polyester Dye in Black is a 14g dissolvable packet designed for easy machine dyeing of 2-3 lbs of synthetic fabrics. It delivers vibrant, fade-resistant color with no mess, making it the go-to choice for professionals and DIYers seeking a bold black finish on polyester and other synthetics.

Specifications

ASIN	B007QYBQNS
Best Sellers Rank	#6,326 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #48 in Fabric Dyes
Brand Name	Jacquard
Color	Black
Compatible Material	Fabric
Customer Reviews	3.8 3.8 out of 5 stars (1,543)
Item Form	Powder
Item Type Name	iDye Poly
Item Weight	0.05 Pounds
Manufacturer	Jacquard
Manufacturer Part Number	F-JID1454
Model Number	F-JID1454
Number of Items	1
UPC	743772022954
Warranty Description	None.

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In stock

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