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D3784-02 – Standard Test Method Technical Guide
The ASTM D3784-02 standard, issued under the fixed designation D 3784, establishes the required performance characteristics for men’s and boys’ woven bathrobe and dressing gown fabrics. Under the jurisdiction of ASTM Committee D13 on Textiles (Subcommittee D13.61 on Apparel), this specification applies to fabrics composed of any textile fiber or mixture intended for the outer shell of these garments. It is not applicable to woven fabrics used for interlinings.
📐 Scope, Definitions, and Regulatory Context
This performance specification covers woven fabrics intended for men’s and boys’ bathrobes and dressing gowns, composed of any textile fiber or mixture. Requirements apply to the length and width directions for those properties where fabric direction is pertinent. For standard textile terminology, users must refer to ASTM D123 (Terminology Relating to Textiles) and the AATCC Technical Manual.
⚠️ Regulatory Compliance: As indicated in Section 1.4, this standard does not address all safety concerns. Users must establish appropriate practices and comply with the U.S. Consumer Product Safety Commission regulations, specifically 16 CFR, Chapter II, Subchapter D (Flammable Fabrics Act Regulations), as referenced in Section 2.3.
⚙️ Test Methods and Performance Evaluations
Fabric performance is verified through a comprehensive suite of established ASTM and AATCC standard test methods. The specific procedures required for certification against D3784-02 are detailed in the following tables. The specification relies on MIL-STD-105D and ASTM D2905 for sampling procedures and specimen count.
Mechanical Strength and Dimensional Stability
| 🟦 Required Property | 📏 Standard Test Method |
|---|---|
| Breaking Force | ASTM D5034 (Grab Test) |
| Tear Resistance | ASTM D1424 (Falling-Pendulum) or ASTM D2262 (Tongue Method) |
| Resistance to Yarn Slippage | ASTM D434 (Standard Seam) |
| Dimensional Changes (Woven/Knit except Wool) | AATCC 96 or AATCC 135 |
| Appearance (Durable Press) | AATCC 124 (After Repeated Home Launderings) |
| Bonded/Fused/Laminated Fabric Integrity | ASTM D2724 |
Colorfastness and Chemical Resistance
| 🎯 End-Use Property | ⚡ Test Method / Evaluation Procedure |
|---|---|
| Colorfastness to Crocking | AATCC 8 (Crockmeter) or AATCC 116 (Rotary Vertical) |
| Colorfastness to Perspiration | AATCC 15 |
| Colorfastness to Light | AATCC 16 |
| Colorfastness to Washing | AATCC 61 |
| Colorfastness to Drycleaning | AATCC 132 |
| Colorfastness to Burnt Gas Fumes | AATCC 23 |
| Colorfastness to Bleach (Non-Chlorine) | AATCC 172 |
| Colorfastness to Bleach (Sodium Hypochlorite) | AATCC 188 |
💡 Grading Tools: Evaluation of color change and staining must utilize the specific tools outlined in the standard: AATCC Evaluation Procedure 1 (Gray Scale for Color Change), Evaluation Procedure 2 (Gray Scale for Staining), and Evaluation Procedure 3 (AATCC Chromatic Transference Scale).
Note: