Worried your heat transfer might not adhere properly to your specific materials? Struggling to choose between sending a finished garment or a fabric swatch for heat transfer testing?
We get it. Whether you're still in the production phase or working with ready-made garments, it’s important to know: Will it stick? Will it look good? Will it last?
That’s exactly why we offer free in-house testing at dekoGraphics – so you get reliable results before you go into full production.
Why testing makes all the difference
Not all fabrics behave the same. Some stretch more, others have special coatings or react differently to heat. That’s why we test under realistic conditions – right here in our in-house lab.
We’ve tested thousands of textiles over the years, and in this article, you’ll learn exactly which material to send, why it matters, and how to make the best choice for reliable pre-production results.
Finished Garment or Fabric Sample: Both perfectly fine
1. You're working with a finished garment
You’ve already got the product – and now it needs the perfect finishing touch.
This is often the case for:
- Football clubs that receive blank kits from their supplier and need to add club crests, player names or sponsor logos before matchday.
- Corporate brands that order ready-made polos, jackets or workwear and want to apply their branding afterwards.
- Retailers or licensees handling post-production embellishment on finished pieces for seasonal drops or collaborations.
In these cases, the garment is already sewn, labelled, and sometimes even packed. That’s why testing directly on the final piece is ideal: we can see how our heat transfers interact with the real material – including seams, stretch zones, coatings, or ribbed areas – and ensure perfect performance under real-life conditions.
2. You're still in development? No worries.
Your garment hasn’t been produced yet, but the fabric is available – and you want to get everything right before full production starts.
This applies to:
- Fashion brands developing their next collection and testing different fabric qualities or finishes.
- Performance and sportswear labels working with highly functional materials and wanting to avoid issues with adhesion or dye migration.
- Corporate wear specialists who want to make sure their branding stays sharp, wash after wash.
In this phase, you may not have the finished product yet – but you do have access to the original fabric rolls. That’s all we need. Send us a sample, and we’ll test adhesion, durability, and overall compatibility so you can proceed with confidence.
Our experience with high-performance textiles and coated fabrics means you’re in good hands – even with challenging materials.
How big should a fabric sample be?
While we don’t need a large amount of fabric, the sample should be big enough to perform multiple tests.
✅ We recommend providing at least 1 linear metre of the original fabric – that gives us enough space to properly evaluate performance.
If you’d like to test different designs or colours, feel free to send several samples of the same size.
What exactly do we test?
As soon as we receive your fabric, we run it through a full series of tests:
- Adhesion: Does the heat transfer stick reliably – even under stress?
- Durability: How well does it hold up during washing and wear?
- Migration: For sublimated or highly pigmented fabrics, we check whether our blockers prevent dye bleeding.
Our goal: 100% confidence before production
Whether you're testing a finished item or a raw fabric – our job is to help you make the right choice. We want you to feel sure about adhesion, appearance, and durability before your logo goes into production.
What’s the next step?
It’s easy:
- Tell us about your project: What do you need the fabric to do?
- Send your material: Fabric sample or finished garment – whatever works best.
- We test it in-house: Our team checks compatibility and performance.
- You get clear feedback: Along with our recommendations for the best heat transfer solution.
Cost? Zero. Our testing is completely free.
FAQ
Should I send a finished garment or a fabric sample for testing? Both options work perfectly. The right choice depends on your project stage—finished garments are ideal for real-life validation, while fabric samples are best during development.
When should I send a finished garment? Send a finished garment if your product is already produced and you want to test how heat transfers perform under real conditions, including seams, stretch zones, and coatings.
When is a fabric sample sufficient? A fabric sample is ideal during product development. It allows testing of adhesion, durability, and compatibility before garments go into production.
Does testing on a finished garment give more accurate results? Yes. Testing directly on the final product provides the most realistic results, as it includes all construction details like stitching, layering, and fabric tension.
Can I test multiple fabrics or variations? Yes. You can send multiple samples to compare different materials, colours, or finishes and identify the best solution.
How large should my fabric sample be? We recommend at least 1 linear metre of fabric. This allows us to perform multiple tests and ensure reliable results.
The smart move before production kicks off
At the end of the day, choosing the right material for pre-production testing can prevent costly mistakes down the line. Whether you're working with coated fabrics or heat sensitive textiles, getting a test done on the actual garment—or a sample—can make all the difference.
Now that you understand how and why we test different materials, your next step is simple: send us your material or read [What Materials and Fabrics Can Our Heat Transfer Logos Be Applied To?] to explore your options further.
This article was brought to you by the dekoGraphics team—experts in textile and heat transfer solutions.
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