Why the Inks Behind
Your Apparel Matter
Every printed garment begins with the materials used to produce it. At iHeartCustoms, we intentionally use OEKO-TEX® ECO PASSPORT certified DTF inks because we believe production quality extends beyond color and durability. The materials behind every transfer matter too.
What Is OEKO-TEX® ECO PASSPORT?
OEKO-TEX® ECO PASSPORT is a certification program developed by the OEKO-TEX® Association that evaluates the chemicals, colorants, and auxiliaries used in textile production — before they are applied to fabric. It evaluates the input materials that manufacturers use during production, not the finished product itself.
To receive ECO PASSPORT certification, a chemical formulation must be assessed against a defined set of criteria developed by OEKO-TEX®. This includes review of ingredients, safety data, and compliance with relevant standards. The certification is renewed periodically and is tied to specific formulations, not blanket claims about an entire production facility.
For DTF printing specifically, the inks used to create transfers fall into the category of chemical auxiliaries used in textile decoration. Using ECO PASSPORT certified inks means the ink formulations we use have undergone this third-party evaluation process.
This is one part of our broader commitment to thoughtful material selection — not a guarantee about finished garment certification, and not a medical or safety claim about the apparel we produce.
What ECO PASSPORT Evaluates
- Chemical formulations used in textile production
- Colorants, auxiliaries, and process chemicals
- Ingredient composition and safety data
- Compliance with OEKO-TEX® criteria
- Third-party review of specific formulations
- Periodic renewal of certification status
ECO PASSPORT vs. OEKO-TEX® STANDARD 100 — What's the Difference?
These are two distinct OEKO-TEX® certifications that evaluate different things. Understanding the difference matters for setting accurate expectations.
| Aspect | ECO PASSPORT | STANDARD 100 |
|---|---|---|
| What it certifies | Chemical input materials used during production — inks, dyes, auxiliaries | Finished textile products — garments, fabric, accessories |
| Who it applies to | Manufacturers and suppliers of production chemicals | Textile and apparel brands and manufacturers |
| What is tested | The chemical formulation itself, before application | The finished article — tested for harmful substances after production |
| How they relate | ECO PASSPORT certified chemicals can support the pathway toward STANDARD 100 certified finished products — but the two are independent certifications. Using ECO PASSPORT certified inks does not mean a finished garment is STANDARD 100 certified. | |
| iHeartCustoms claim | We use ECO PASSPORT certified DTF inks ✓ | We do not certify finished garments — this is a separate process ✗ |
Why iHeartCustoms Invested in Certified DTF Inks, Powders, and Films.
Not all DTF inks are certified. The decision to use OEKO-TEX® ECO PASSPORT certified formulations was a deliberate production choice — not a marketing claim.
The organizations we work with — hospitality groups, corporate employers, schools, healthcare offices — put our printed apparel on people who wear it every day. Staff uniforms. Employee polos. Event shirts. Convention apparel. When the same garment gets washed and worn repeatedly, the materials behind the decoration matter more than they do on a one-time promotional item.
We also work with clients who have their own procurement standards — purchasing policies, vendor requirements, or internal guidelines that factor in material sourcing. Having certified ink inputs is a documented production standard we can point to, not just a verbal assurance.
Choosing certified inks costs more than uncertified alternatives. We made that choice because we think it reflects a standard of production that matches the types of clients we serve and the reputation we're building.
Why This Decision Was Made
- Apparel is worn every day — materials should reflect that
- Corporate and hospitality clients expect documented standards
- Supports clients with internal procurement guidelines
- Third-party evaluation vs. self-reported claims
- Consistent with the quality tier we operate at
- A production standard, not a marketing position
Organizations That Value Certified Production Materials
The relevance of certified ink inputs varies by organization and use case. Here are the buyer types most likely to find this production standard meaningful.
Schools & Youth Organizations
Organizations producing apparel for children and young students are often attentive to the materials involved in production. Certified ink inputs are one part of a thoughtful material selection process for youth apparel programs.
Corporate Apparel Programs
Companies building ongoing uniform programs — especially those with procurement policies or ESG considerations — benefit from vendors who can document production standards rather than provide only verbal assurances.
Healthcare & Wellness
Medical offices, wellness organizations, and healthcare brands producing staff apparel or patient-facing materials operate in environments where material sourcing documentation may be part of vendor qualification.
Hospitality
Hotels, resorts, and food service operations outfit large workforces in apparel worn daily across extended periods. Consistent production quality — including material inputs — is part of the overall brand standard for hospitality employers.
Retail Brands
Consumer brands producing private-label or branded merchandise increasingly consider the production standards behind their products. Certified ink inputs are one documented component of the production chain.
Convention & Event Apparel
Trade show shirts, convention staff uniforms, and event apparel are often produced in bulk for teams that wear them throughout multi-day events. Quality production standards are consistent regardless of order size or timeline.
Quality Is More Than What You See
Accuracy note: OEKO-TEX® ECO PASSPORT certification applies to the DTF ink formulations we use in production. It does not certify the finished garments we produce, the blank apparel we decorate, or every material involved in our production process. We do not produce OEKO-TEX® STANDARD 100 certified finished goods, and we do not make medical, health, or safety claims about our apparel. For technical questions about ECO PASSPORT certification, visit oeko-tex.com.
OEKO-TEX® ECO PASSPORT FAQs
Straightforward answers to the questions buyers most commonly ask about this certification.
