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D4113-24 – Standard Test Method Technical Guide
🔍 Scope and Terminology
This performance specification, designated D4113-24, covers woven fabrics comprised of any textile fiber or mixture of fibers intended for use in slipcovers. The requirements apply to both length and width directions where fabric direction is pertinent. It incorporates terminology from ASTM D123 and references multiple ASTM and AATCC standards for testing mechanical and colorfastness properties.
⚙️ Performance Requirements and Test Methods
To ensure durability and aesthetic performance, fabrics must meet specific criteria. The following table outlines key mechanical and stability requirements:
| 🟦 Property | 📏 Requirement | 🎯 Test Method |
|---|---|---|
| Breaking Strength | ≥ 200 N (warp and weft) | ASTM D5034 |
| Tearing Strength | ≥ 15 N | ASTM D2261 |
| Resistance to Yarn Slippage | ≤ 6 mm seam opening | ASTM D434 (withdrawn but referenced) |
| Dimensional Change (Laundering) | ± 3% maximum | AATCC TM135 |
| Dimensional Change (Drycleaning) | ± 2% maximum | AATCC TM158 |
Colorfastness is equally important. Below are typical requirements for color-related properties:
| 🟦 Property | 📐 Requirement | ⚡ Test Method |
|---|---|---|
| Colorfastness to Crocking (dry) | Class 4 (minimum) | AATCC TM8 or TM116 |
| Colorfastness to Crocking (wet) | Class 3 (minimum) | AATCC TM8 or TM116 |
| Colorfastness to Light | Class 4 (minimum) | AATCC TM16.3 |
| Colorfastness to Perspiration | Class 3.5 (minimum) | AATCC TM15 |
Note: The requirements listed are based on typical industry values from ASTM D4113-24. Always refer to the latest edition of the standard for official specifications and complete sampling plans (see ASQ/ANSI Z1.4).
📊 Key Measured Properties
The standard evaluates several properties to ensure fabric performance. Mechanical properties include breaking strength (ASTM D5034), tearing strength (ASTM D2261), and yarn slippage resistance (ASTM D434). Dimensional stability is assessed after home laundering (AATCC TM135) and dry cleaning (AATCC TM158). Colorfastness tests cover light exposure (AATCC TM16.3), crocking (AATCC TM8/TM116), perspiration (AATCC TM15), and atmospheric contaminants like ozone (AATCC TM129) and burnt gas fumes (AATCC TM23). Additional evaluations include distortion of yarn (ASTM D1336) and smoothness appearance after laundering (AATCC TM124).
❓ Frequently Asked Questions
🔍 What is the scope of ASTM D4113-24?
It covers performance specifications for woven fabrics made from any textile fiber or mixture of fiber used in slipcovers, with requirements applicable to both fabric directions.
💡 Which test methods are crucial for evaluating strength?
Key strength tests include ASTM D5034 (Grab Test) for breaking strength and ASTM D2261 (Tongue Tear) for tearing strength.
⚡ How is colorfastness to crocking determined?
Colorfastness to crocking is tested using AATCC TM8 (Crockmeter) or TM116 (Rotary Vertical Crockmeter), with minimum ratings of Class 4 for dry and Class 3 for wet conditions.
📌 What are the dimensional stability requirements?
Fabrics must meet maximum dimensional change limits after home laundering (AATCC TM135) and dry cleaning (AATCC TM158), typically ±3% and ±2% respectively.