Значение и использование

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

It should be recognized that fabrics can be produced with an almost infinite number of construction variables (for example, type of fibers, percentage of fibers, yarn twist, yarn number, warp and pick count, chemical and mechanical finishes). Additionally, fashion or 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 emthods are discussed in the appropriate sections of the specified test methods.

TABLE 1 Specification Requirements

Note—Class for colorfastness and DP rating is based on a numerical scale of 5 for negligible or no color change, color transfer, or wrinkle to 1 for very severe color change, color transfer, or wrinkle. The numerical rating in Table 1 or a higher numerical rating is acceptable.

Characteristic Requirements Section Woven Knit Breaking strength force (load)25 lbf (111 N) min. . . 5.1 Bursting strength. . .35 psi (241 kPa) min 5.2 Tear strength1.5 lbf (6.7 N) min 5.3 Dimensional change: Laundering and dry cleaning (each direction): 5.4.1–5.4.2 5.4.2 Tailored type±3.5 % max±5.0 % max Throw type±5.0 % max±5.0 % max 5.5.2.1 Fabric appearance (durable press)SA3.5 minSA 3.5 min Retention of hand, character, and appearanceNo significant changeNo significant change 5.6 Durability of back coatingNo significant changesNo significant change 5.7 Colorfastness to: Laundering: 5.8.1 Shade changeGrade 4 min^AGrade 4 min^A StainingGrade 3 min^BGrade 3 min^B Bleaching 5.8.2 Sodium hypochloriteGrade 4 min^AGrade 4 min^A Non-chlorineGrade 4 min^AGrade 4 min^A Drycleaning: 5.8.3 Shade changeGrade 4 min^AGrade 4 min^A Burnt gas fumes (two cycles) Shade change 5.8.4 OriginalGrade 4 min^AGrade 4 min^A After one laundering or one dry cleaningGrade 4 min^AGrade 4 min^A Crocking: 5.8.5 DryGrade 4 min^CGrade 4 min^C WetGrade 3 min^CGrade 3 min^C Light (20 AATCC standard fading units)Step- 4 min^AStep- 4 min^A 5.8.6 FlammabilityPassPass 5.9

^A AATCC Gray Scale for Color Change.

^B AATCC Gray Scale for Staining.

^C AATCC Chromatic Transference Scale.

Область применения

1.1 This performance specification covers the performance requirements for woven, knitted, or flocked fabrics to be used in the manufacturing of bedspreads.

1.2 These requirements apply to the length and width directions for those properties where fabric direction is pertinent.

1.3 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.