ASTM D3691 / D3691M - 09

    Standard Performance Specification for Woven, Lace, and Knit Household Curtain and Drapery Fabrics

    Active Standard ASTM D3691 / D3691M | Developed by Subcommittee: D13.63

    Book of Standards Volume: 07.01


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    Significance and Use

    Fabrics intended for this end-use should meet all of the requirements listed in Table 1.

    It should be recognized that fabric can be produced utilizing an almost infinite number of construction variables (e.g., type of fibers, percentage of fibers, yarn twist, yarn number, warp and pick count, chemical and mechanical finished). Additionally, fashion and aesthetics dictate that the ultimate consumer may find acceptable articles made from fabrics that do not conform to all of the requirements in Table 1.

    Hence, no single performance specification can possibly apply to all the various fabrics that could be utilized for this end-use.

    The uses and significance of particular properties and test methods are discussed in the appropriate sections of the specified test methods.

    TABLE 1 Performance Requirements

    Characteristics Knit and LaceSheer (woven)Foam Back, Stitch Bonded, and
    Conventional Weights (woven)
    Section
    Breaking strength (load), (CRT method), in
    both directionsA
    ... 67 N (15 lbf), min89 N (20 lbf), min 5.1
    Bursting strength (ball burst)A 138 kPa (20 lbf/in.2),
    min
    ... ... 5.2
    Tear strength (tongue tear), in both
    directionsA
    ...4.4 N (1 lbf), min6.7 N (1.5 lbf), min 5.3
    Dimensional change:
    After 5 launderings in both directions3.0 % max +0.0%3.0 % max 0.0%3.0 % max +0.0% 5.4.1
    After 3 dry cleanings in both directions3.0 % max +0.0%3.0 % max +0.0%3.0 % max +0.0 % 5.4.2
    Distortion of yarn:
    1-lbf load...2.54 mm (0.1 in.),
    max
    ... 5.5
    2-lbf load...... 2.54 mm (0.1 in.),
    max
    Colorfastness to laundering:B
    Shade Change
    Staining
    Class 4C min
    Class 3D min
    Class 4C min
    Class 3D min
    Class 4C min
    Class 3D min
    5.6.1
    Colorfastness to dry cleaning:
    Shade changeClass 4C minClass 4C min Class 4C min 5.6.2
    Burnt gas fumes, 2 cycles:
    Shade change
    After 1 refurbishing
    Class 4C min
    Class 4C min
    Class 4C min
    Class 4C min
    Class 4C min
    Class 4C min
    5.6.3
    Crocking:
    Dry
    Wet
    Class 4E min
    Class 3E min
    Class 4E min
    Class 3E min
    Class 4E min
    Class 3E min
    5.6.4
    Light (60 AATCC FU), xenonA Step 4C minStep 4C minStep 4C min 5.6.5
    Ozone, 1 cycleClass 4C minClass 4C min Class 4C min 5.6.6
    Fabric appearanceSA 3.5F minSA 3.0 minSA 3.5 min 5.7
    Retention of hand, character, and
    appearance
    No significant changeNo significant changeNo significant change 5.8
    Durability of back coatingNo significant changeNo significant changeNo significant change 5.9
    Flammabilitypasspasspass 5.10
    Light degradationG......... 5.11

    A There is more than one standard test method that can be used to measure breaking strength, bursting strength, tear strength, and lightfastness. These test methods cannot be used interchangeably since there may be no overall correlation between them (see Note 2, Note 3, Note 4, Note 5, and Note 9).

    B Class in colorfastness and SA rating is based on a numerical scale of 5.0 for negligible color change, color transfer, or wrinkling to 1.0 for very severe color change, color transfer, or wrinkling. The numerical rating in Table 1 or higher is acceptable.

    C AATCC Gray Scale for Color Change.

    D AATCC Gray Scale for Staining.

    E AATCC Chromatic Transference Scale.

    F For durable-press fabrics only.

    G The development of a standard method has been referred to the American Association of Textile Chemists and Colorists.

    1. Scope

    1.1 This performance specification covers the requirements for all knit, lace, foam back, stitch-bonded, conventional weights, and sheer woven fabrics to be used in the manufacture of curtains and draperies.

    1.2 This performance specification is applicable to all fabrics except those made of glass.

    1.3 For those properties where fabric direction is pertinent, these requirements apply to the length and width directions for woven fabric and to both the wale and course directions for knit fabric.

    1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

    1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D231 Methods of Testing Tolerances for Knit Goods; Replaced by D 3887

    D1336 Test Method for Distortion of Yarn in Woven Fabrics

    D1424 Test Method for Tearing Strength of Fabrics by Falling-Pendulum (Elmendorf-Type) Apparatus

    D2261 Test Method for Tearing Strength of Fabrics by the Tongue (Single Rip) Procedure (Constant-Rate-of-Extension Tensile Testing Machine)

    D2724 Test Methods for Bonded, Fused, and Laminated Apparel Fabrics

    D5034 Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)

    D7023 Terminology Relating to Home Furnishings


    ICS Code

    ICS Number Code 97.160 (Home textiles. Linen)

    UNSPSC Code

    UNSPSC Code 52131500(Curtains and draperies)


    DOI: 10.1520/D3691_D3691M-09

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