Article: Knowledge of Coat Fabrics and Harmful Substances

Q: What are the common fabric components in coats, and why does fabric choice matter?

A: Coat fabrics are often made from cotton, wool, synthetic fibers (such as polyester), or blends. The choice of fabric affects warmth, breathability, texture, and comfort. Moreover, fabric production usually involves dyeing, finishing, anti-wrinkle, or waterproof treatments. These processes may use chemicals that are harmful to the skin. Therefore, besides aesthetics and practicality, we should also pay attention to health and safety.

Q: Which harmful substances are commonly found in fabric production? Can you give two examples and explain the risks?

1. Formaldehyde

   • Formaldehyde is often used in “wrinkle-free,” “color-fixing,” and “anti-crease” textile treatments. It is also recognized by the World Health Organization (WHO) as a known human carcinogen (pmc.ncbi.nlm.nih.gov, en.wikipedia.org).

   • Long-term skin contact can cause irritation, allergic reactions, and allergic contact dermatitis. For sensitive individuals, even very low concentrations may trigger symptoms (productsafety.govt.nz).

   • Studies have shown that even “eco-friendly” or “organic cotton” garments may contain formaldehyde, sometimes at levels higher than regular textiles (pmc.ncbi.nlm.nih.gov).

   • Fortunately, repeated washing can significantly reduce or eliminate formaldehyde residues, which is why consumers are advised to wash new garments before wearing them.

2. Azo Dyes

   • Azo dyes account for 60–80% of all dyes used in textiles, particularly in dark-colored garments such as black or brown (earthday.org, allergystandards.com).

   • When in contact with skin or broken down by bacteria, they may release aromatic amines, some of which are classified as carcinogenic. They may also trigger allergic reactions and dermatitis (wired.com).

   • The EU and other regions have banned azo dyes that can release 22 specific carcinogenic aromatic amines (allergystandards.com).

Q: What is SAINIYA’s correct approach regarding fabric safety?

A: SAINIYA ensures safety through the following practices:

• Full control of its fabric supply chain: SAINIYA owns its own fabric factory, ensuring every batch is tested by international agencies such as SGS, ITS, and Bureau Veritas to guarantee fabrics are completely free of formaldehyde and other harmful chemicals (sainiya.com).

• Excludes azo dyes: SAINIYA clearly states that their fabrics are free of azo dyes, ensuring color safety and skin-friendliness (sainiya.com).

• Balances safety with functionality: Their fabrics not only meet safety standards but also offer features such as water resistance, oil resistance, windproofing, antistatic performance, breathability, sweat-wicking, and UV protection (sainiya.com).

• Healthy and stylish brand philosophy: SAINIYA promotes the idea of “Wear Safety. Wear Style,” ensuring that consumers enjoy both fashion and health protection (sainiya.com).

Q: Can you summarize the harmful substances, risks, and SAINIYA’s solutions?

Official website: https://sainiya.com

Q: What can consumers do to reduce risks when buying and wearing coats?

1. Look for third-party certifications such as SGS, ITS, Bureau Veritas, Oeko-Tex®, or GOTS.

2. Choose brands that avoid formaldehyde and azo dyes, such as SAINIYA.

3. Wash new clothes before first wear, especially those not labeled formaldehyde-free, to remove potential residues (pmc.ncbi.nlm.nih.gov).

4. Pay attention to colorfastness. Dark-colored fabrics may be more prone to dye release, so choosing high-quality dyed textiles is safer.

References

• Ciurana-Biescas et al., 2022: Found formaldehyde in 20% of clothing samples, even eco-friendly fabrics; washing reduced it to undetectable levels (pmc.ncbi.nlm.nih.gov).

• Product safety reports: Formaldehyde can trigger skin reactions at low concentrations in sensitive individuals (productsafety.govt.nz).

• EarthDay.org & Allergy Standards: Azo dyes widely used in textiles; may release carcinogenic aromatic amines (earthday.org, wired.com).

• SAINIYA official site: Fabrics are free from formaldehyde and azo dyes, tested and certified (sainiya.com).