Textile Certifications 101: What OEKO-TEX® and GOTS Mean for Your Apparel Blanks

Cemil Gündüz
2026-02-19T11:10:23-06:00

As a DTF business owner, you’re most likely obsessed with quality. You've dialed in your DTF printer for perfect saturation, you know the exact curing time to get a durable yet flexible print, and you only use the highest quality inks and powders, but you apply all of that expertise to a canvas you don't create: the blank garment itself.

The t-shirt, hoodie, or tote bag you print on has a story that began long before it arrived at your workshop, and that story has a profound impact on its quality, safety, and value. In an increasingly conscious market, your customers are starting to ask more questions. What is this shirt made of? How did they make it? Is it safe for my kids? Simply saying it's 100% cotton is not enough.

This is where textile certifications come in. Think of labels like OEKO-TEX® and GOTS as the official ingredient lists and biographies for the apparel you use. They are independent, third-party verifications that provide trust and transparency. For your print business, understanding and offering certified blanks is no longer a niche specialty; it's a powerful way to elevate your brand, attract premium customers, and prove your commitment to quality and responsibility.

This is your comprehensive guide to the two most important certifications in the textile world. We'll break down the acronyms, explain exactly what they mean, and show you how to leverage them as a powerful tool for your business.

Why Certifications Matter in the Modern Apparel World

Before we dive into the specifics, let's understand why these labels have become so important.

The Rise of the Conscious Consumer: Today's buyers, especially Millennials and Gen Z, focus on more than just price and style. They are increasingly concerned with the environmental and ethical impact of their purchases. They actively seek out brands that align with their values, and they are willing to pay more for products they can trust.

A Guarantee Beyond a Brand's Promise: Any brand can claim its shirts are eco-friendly or high-quality. Certifications from globally recognized bodies like OEKO-TEX® and GOTS cut through the marketing noise. They provide verifiable, scientific proof that a product meets a strict set of standards.

A Competitive Differentiator for Your Business: When you offer certified apparel blanks, you instantly elevate your business. You position yourself as a knowledgeable, professional, and responsible supplier. You're not just selling a print; you're selling a complete, high-quality, and trustworthy product, from the fiber to the final ink.

Decoding OEKO-TEX®: The Standard for Human-Ecological Safety

You've probably seen the OEKO-TEX® label on everything from baby clothes to bedsheets. It is one of the most common and recognized certifications in the world.

What is OEKO-TEX®?

OEKO-TEX® is a union of 18 independent research and test institutes in Europe and Japan, responsible for a portfolio of different certifications. Their overarching mission is to create trust in textiles and leather and to enable consumers and companies to make responsible decisions. Their core mission is "Confidence in Textiles."

The most crucial thing to understand about OEKO-TEX® is that its primary focus is human-ecological safety. It is, first and foremost, a product safety certification. Its main goal is to ensure that the textile product you are holding is free from a long list of substances known to be harmful to human health.

Deep Dive: STANDARD 100 by OEKO-TEX®

This is the most well-known label and the one most relevant to your apparel blanks. If a t-shirt carries the STANDARD 100 label, it means OEKO-TEX® has rigorously tested every single component of that item, from the thread and buttons to the fabric itself, for harmful substances.

What it Tests For: The list is extensive, updated annually, and often goes far beyond legal requirements. It includes:

Banned Azo dyes, which are known carcinogens.

Formaldehyde, a common finishing agent that can cause skin irritation.

Pentachlorophenol (PCP).

Heavy metals like lead, cadmium, and mercury.

Nickel, a common cause of allergic reactions.

Hundreds of other chemicals, pesticides, and preservatives.

The Four Product Classes: STANDARD 100 uses a unique system where the testing limits are stricter depending on how close the textile will be to a person's skin.

Product Class I: The strictest class. For textile items for babies and toddlers up to 3 years of age (e.g., bodysuits, bedding).

Product Class II: For textiles where a large part of their surface is in direct contact with the skin (e.g., t-shirts, underwear, bed linen). This is where most of your blanks will fall.

Product Class III: For textiles used with minimal or no direct skin contact (e.g., jackets, belts).

Product Class IV: For decoration and furnishing materials (e.g., curtains, tablecloths).

What STANDARD 100 is NOT: It is critical to know that this label is not an organic certification. It does not mean the cotton was grown organically. It is also not an ethical trade certification. It does not make any claims about the working conditions in the factory where the shirt was made. It is laser-focused on one thing: is the final product chemically safe for you to wear?

Understanding GOTS: The Gold Standard for Organic Textiles

If OEKO-TEX® is the product's health inspection, GOTS is its full-life biography. It is a much more comprehensive and holistic standard that covers the entire journey of the textile, from the farm to the factory.

What is GOTS?

GOTS stands for the Global Organic Textile Standard. It is the world's leading processing standard for textiles made from organic fibers. Their core mission is "From Seed to Shirt, Responsibly."

GOTS ensures the organic status of textiles, from harvesting the raw materials, through environmentally and socially responsible manufacturing, all the way to labeling. It provides a credible assurance to the end consumer because it is a process certification, not just a product certification. GOTS is built on two powerful pillars.

Pillar 1: Strict Ecological Criteria

To be GOTS certified, every step in the supply chain must meet stringent environmental rules.

Organic Farming: The process must begin with raw fibers (like cotton) that are farmed organically, meeting international standards. This means no GMOs, no synthetic pesticides, and no chemical fertilizers.

Hazardous Chemicals Prohibited: Throughout the entire processing stage (spinning, dyeing, finishing), all chemical inputs must be evaluated and meet strict toxicological criteria. Toxic heavy metals, formaldehyde, aromatic solvents, and functional nanoparticles are all banned.

Safe Dyes: All dyes and colorants must meet high standards for environmental and human safety.

Wastewater Treatment: GOTS mandates that all wet processing units (like dye houses) have a fully functional wastewater treatment plant to prevent pollution of local waterways.

Pillar 2: Strict Social Criteria 🧑‍🤝‍🧑

This is a key differentiator. GOTS certification is impossible without ensuring the ethical treatment of every worker in the supply chain. These criteria follow the key norms of the International Labour Organization (ILO).

Safe and Hygienic Working Conditions.

No Child Labor.

Workers Must Receive Living Wages (not just the legal minimum wage).

No Forced or Bonded Labor.

Working Hours Are Not Excessive.

Freedom of Association and the Right to Collective Bargaining.

No Discrimination.

The Two GOTS Labels:

When you see the GOTS logo, there are two possible grades:

1. "Organic": The product must contain a minimum of 95% certified organic fibers.

2. "Made with Organic": The product must contain a minimum of 70% certified organic fibers.

OEKO-TEX® vs. GOTS: A Head-to-Head Comparison

It’s common to confuse the two, but they serve different, complementary purposes. We have put some of their core differences in the table below.

Feature | STANDARD 100 by OEKO-TEX® | GOTS (Global Organic Textile Standard)
Main Focus | Product Safety | Holistic Process
What's Tested | The final, finished product and all its components. | The entire supply chain: from the farm, to the factory, to the exporter.
Key Question | "Is this product safe for me to wear?" | "Was this product made organically and ethically?"
Organic Claim | Does NOT verify that a product is organic. | IS the worldwide leading standard for organic fibers.
Ethical Labor | Does NOT include social or ethical criteria. | INCLUDES strict social criteria as a core requirement.

The best, most responsible products on the market are often certified by both. A product made in a GOTS-certified supply chain will almost certainly pass the STANDARD 100 test. Brands often seek both certifications to provide the maximum level of transparency and trust.

The DTF Advantage: Why Certified Blanks Matter for Your Business

As a print shop owner, choosing certified blanks isn't just about altruism; it's a smart business decision.

A Better Canvas for Your Art: High-quality, GOTS-certified organic cotton often has longer, stronger, and more uniform fibers. This can create a smoother and more stable surface for printing, allowing for sharper details and a more consistent application of your DTF ink.

Ensuring Chemical Compatibility: Printing on an OEKO-TEX® certified blank gives you peace of mind. You know the fabric is free from residual chemicals, starches, or finishing agents that could potentially interfere with your DTF powder's adhesion or react negatively with your inks during the heat-curing process.

A Powerful Marketing Tool: This is your payoff. You can now use these certifications to actively market your business.

Create a "Sustainable & Certified Apparel" section on your website.

Use the official OEKO-TEX® and GOTS logos, following their branding guidelines, on the product pages for certified blanks.

Educate your customers on what these labels mean and why you choose to offer them.

Justify a premium price point. Customers are willing to pay more for the assurance of safety, quality, and ethical production that these certifications provide.

Head Start Into The Printer World

Your expertise is your greatest asset; by understanding the intricate details of textile certifications like OEKO-TEX® and GOTS, you elevate your role from a simple printer to a knowledgeable and trusted partner for your clients. You can guide them toward better, safer, and more sustainable apparel choices that align with their values.

Offering certified blanks demonstrates a commitment to quality that goes beyond the surface of the print. It shows that you care about the entire product, from its origins in the field to its final destination in your customer's hands. In the long run, this commitment to transparency and quality is what will build a lasting, reputable, and profitable brand.

Your Common Questions About Textile Certifications

If a shirt is GOTS certified, does it also need to be OEKO-TEX® certified?

Not necessarily. The GOTS standard is so strict regarding chemical inputs that a GOTS-certified product will almost always meet the requirements for STANDARD 100 by OEKO-TEX®. However, some brands choose to get both certifications to provide the maximum level of assurance to all consumer groups.

Can my final DTF-printed shirt be called "GOTS Certified"?

No, and this is a critical point. To label the final product as GOTS certified, GOTS would also need to certify your entire printing process, including your DTF inks and your facility. As a printer, you should accurately market the product as: "A custom design printed on a GOTS-certified organic t-shirt." You are passing on the certification of the blank garment.

Are certified blanks more expensive?

Yes, typically they are. The cost of organic farming, paying living wages, and maintaining the rigorous standards of certification means that GOTS and OEKO-TEX® certified blanks will have a higher price point than conventional, non-certified apparel. However, this also allows you to sell them as a premium product at a higher margin.

Where can I find wholesale suppliers for certified apparel blanks?

Many of the leading wholesale apparel brands that you may already use, such as Bella + Canvas, Allmade, and Royal Apparel, offer extensive collections of OEKO-TEX® certified, GOTS certified, and sustainably made products. Check with your current supplier and ask specifically for their certified collections.

Elevate your brand by offering safer, more sustainable apparel. DTF Printer USA provides the high-quality printers, inks, and supplies you need to create premium products on any garment, including certified blanks.

Explore our DTF printing solutions and become the trusted expert your customers are looking for.