1、Designation:D472189(Reapproved2000) Designation: D4721 12Standard Practice forEvaluation of the Performance of Machine Washable andDrycleanable Bedcoverings and Accessories1This standard is issued under the fixed designation D4721; the number immediately following the designation indicates the year
2、oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice may be used to evaluate specific characteri
3、stics of importance in the performance of bedcoverings andaccessories (machine washable or drycleanable, woven and knit) including bedspreads, comforters, quilts, pillowshams, dustruffles, and blankets, hereinafter referred to collectively as bedcoverings.1.2 This practice is not to be used to evalu
4、ate bedcoverings that are refurbished by handwashing.1.3 This practice shall not be construed to be a standard of performance for bedcoverings.1.4 This practice shall not be used to evaluate sheets.1.5 This practice may be used by mutual agreement be-tween purchaser and supplier to set purchasing sp
5、ecifications.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. R
6、eferenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD1683 Test Method for Failure in Sewn Seams of Woven Apparel FabricsD1776 Practice for Conditioning and Testing TextilesD3136 Terminology Relating to Care Labeling for Apparel, Textile, Home Furnishing, and Leather ProductsD
7、3773 Test Methods for Length of Woven FabricD3940 Test Method for Bursting Strength (Load) and Elongation of Sewn Seams of Knit or Woven Stretch Textile FabricsD3993 Performance Specification for Woven, Thermal, Flocked, Nonwoven, and Knitted Household Blanket FabricsD4037 Performance Specification
8、for Woven, Knitted, or Flocked Bedspread Fabrics Performance Specification for Woven,Knitted, or Flocked Bedspread FabricsD7023 Terminology Relating to Home Furnishings2.2 AATCC Methods:3AATCC Evaluation Procedure 1AATCC 88B Appearance of Seams in Durable Press Items After Repeated Home Laundering S
9、moothness of Seams in Fabricsafter Repeated Home LaunderingAATCC 96 Dimensional Changes in Commercial Laundering of Woven and Knitted Fabrics Except WoolAATCC 135Dimensional Changes inAutomatic Home Laundering of Woven and Knit Fabrics Dimensional Changes of Fabricsafter Home LaunderingAATCC 143 App
10、earance of Apparel and Other Textile End Products After Repeated Home LaunderingsAATCC 158 Dimensional Changes on Drycleaning in Perchloroethylene: Machine Method3. Terminology3.1Definitions:1This practice is under the jurisdiction of ASTM Committee D-13 D13 on Textiles and is the direct responsibil
11、ity of Subcommittee D13.63 on Home Furnishings.Current edition approved June 30, 1989. Published August 1989. Originally published as D472187. Last previous edition D472187. DOI: 10.1520/D4721-89R00.Current edition approved Feb. 1, 2012. Published March 2012. Originally approved in 1987. Last previo
12、us edition approved in 2000 as D4721-89(2000) which waswithdrawn October 2009 and reinstated in February 2012. DOI: 10.1520/D4721-12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standards, Vol 07.01
13、.volume information, refer to the standards Document Summary page on the ASTM website.3Annual Book of ASTM Standards, Vol 07.02.3Available from American Association of Textile Chemists and Colorists, P.O. Box 12215, Research Triangle Park, NC 27709.1This document is not an ASTM standard and is inten
14、ded only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the curren
15、t versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.1bedcovering, na textile product used on a bed over the sheets for warmth or decoration.3.1.2b
16、edspread, na type of bedcovering that is placed over the blankets and sheets for appearance and warmth.3.1.3blanket, nfor bedding, an unquilted fabric covering designed primarily to provide thermal insulation.3.1.3.1DiscussionBlankets may be made by any textile process from various types of fibers a
17、nd may or may not have a raisedfiber surface.3.1.4comforter, na bedcovering assembly, consisting of an insulating filler secured between two layers of fabric, usedprimarily to reduce heat loss.3.1.5drop, nthat part of a bedcovering that hangs perpendicular to the floor.3.1.5.1DiscussionFor bedspread
18、s, drop is measured from the top of the mattress to the bottom of the spread. For dust ruffles,drop is measured from the top of the box spring to the bottom of the ruffle.3.1.6dust ruffle, na fabric which (1) lies flat over the box spring under the mattress on a bed and (2) has a pleated, tucked,or
19、gathered drop to the floor.3.1.7flounce, na ruffled drop on a bedcovering.3.1.8quilt, na bedcovering assembly used primarily for warmth, consisting of an insulating filler secured between two layersof fabric, but generally lighter in weight and thinner than a comforter.3.1.9sham, na fabric covering
20、for a bed pillow, usually of decorative fabric that matches the bedcovering.3.1.10For definitions of other textile terms used in this practice, refer to Terminology3.1 For all terminology related to Home Furnishings see Terminology D7023.3.2 The following terms are relevant to this standard: bedcove
21、ring, bedspread, blanket, comforter, drop, dust ruffle, flounce,quilt, sham.3.3 For definitions of all other textile terms see Terminologies D123 and Terminology and D3136.4. Significance and Use4.1 This practice may be used to evaluate pertinent performance characteristics of machine washable or dr
22、ycleanablebedcoverings.4.2 The characteristics to be evaluated and the acceptance criteria assigned to these areas shall be set by mutual agreementbetween purchaser and supplier.4.3 The significance and use of specific properties are discussed in the appropriate test methods and performance standard
23、s.5. Sampling, Selection, and Number of Specimens5.1 Division into LotsFor acceptance testing, divide the product into lots as agreed upon by the purchaser and the supplier.5.2 Lot SampleAs a lot sample for acceptance testing, take at random the number of shipping cartons directed in an applicablema
24、terial specification or other agreement between the purchaser and the supplier. Consider shipping cartons of bedcoverings oraccessories to be the primary sampling units.NOTE 1A realistic specification or other agreement between the purchaser and the supplier requires taking into account the variabil
25、ity betweenshipping cartons, between items within a carton, and between specimens within an item so as to provide a sampling plan which has a meaningfulproducers risk, consumers risk, acceptable quality level, and limiting quality level.5.3 Laboratory SampleAs a laboratory sample for acceptance test
26、ing, take two items from each shipping carton in the lotsample.5.4 Test SpecimensTake test specimens from each item in the laboratory sample as directed in individual test methods.Perform each test on the product as it will reach the customer.CHARACTERISTICS AND TEST METHODS6. Characteristics6.1 The
27、 areas to be evaluated and the acceptance criteria assigned to these areas shall be set by mutual agreement betweenpurchaser and supplier.7. Fabric Performance Characteristics7.1 The fabric in the item shall be evaluated as directed in Performance Specification D3993 for blanket fabrics, andPerforma
28、nce Specification D4037 for bedspread fabrics.8. Bedcoverings Performance Characteristics Prior to Refurbishing8.1 Evaluate joining seam performance (strength) as directed in Test Method D1683 for woven fabrics or Test Method D3940for knit fabrics. Evaluate appearance of all seams as directed in AAT
29、CC Method88BAATCC 88B.8.2 Mark and record measurements as directed in Section 10 11 of this practice to establish size consistency, side to side, andpart to part.8.3 Examine bedcoverings for shade difference from part to part, as directed in AATCC Evaluation Procedure 1.D4721 1228.4 Examine bedcover
30、ings for all obvious defects.9.9. Procedure for Measuring Bedcoverings9.1 Condition the bedcoverings, laid flat in the standard atmosphere for testing textiles as directed in Practice D1776 for at least4h.9.2 When necessary, mark the dimension to be measured with a suitable marking device.9.3 Unless
31、 otherwise stipulated by mutual agreement between purchaser and supplier, make original measurement marks at thelocations shown in Fig. 1.9.3.1 Measure the total length of the bedcovering 250 mm (10 in.) in from each selvage or hem and in the middle of thecovering, including all ruffles, flounces, a
32、nd trims (A-A, Fig. 1) in a relaxed state, taking care that all wrinkles have been removed.9.3.2 Measure the total width of bedcovering 250 mm (10 in.) from each selvage or hem and in the middle including all ruffles,flounces, and trims (B-B, Fig. 1) in a relaxed state, taking care that all wrinkles
33、 have been removed.9.3.3 Mark the inner edge of ruffle or flounce where attached to item with 250-mm (10-in.) or 1-m (36-in.) gauge marks (D-D,Fig. 1). Permitting all fullness to remain, mark the outer edge of the ruffle or flounce with corresponding gauge marks (E, Fig. 1).Measure full dimensions b
34、etween second set of gauge marks (E-E, Fig. 1).NOTE 2Ruffle and flounce fullness are standard dimensions which are based on 250-mm (10-in.) or 1-m (36-in.) measurements. It is thereforerecommended that these measurements be used.9.3.4 The ruffle and flounce widths edge to edge (C-B1, F-F, Fig. 1).9.
35、3.5 On the pillowsham, measure the length of the opening.9.3.6 On each panel of the bedcovering, including ruffle or flounce, both face and back, mark with a suitable marking devicethree sets of 1-m (36-in.) gauge marks parallel to the length of the fabric and three sets of 1-m gauge marks parallel
36、to the widthof the fabric to the nearest 50 mm (2 in.) away from all edges of the panel and approximately 125 mm (5 in.) apart. Where thesize of the panel or product limits the size of gauge marks, 500 mm (18 in.), or 250 mm (10 in.) may be used.10. Refurbished Bedcoverings910.1 Refurbish bedcoverin
37、gs following the instructions on the care label. Prepare and measure the bedcovering as directed inSection 11. Record measurements.9.2For10.2 For institutional use, commercially launder as directed in AATCC Method 96, using washing and drying pro-cedures procedures as agreed upon between the purchas
38、er and supplier.910.2.1 Repeat the process two more times or as agreed upon by purchaser and supplier.9.3For10.3 For home use, wash items in an automatic home washing machine, as directed in AATCC Method 135, beginningwith Section 5, except use any domestically available laundry detergent as agreed
39、upon by purchaser and supplier. Use launderingtemperatures as directed in AATCC Method 135, Table 1, or as agreed between the purchaser and the supplier, or as specified onthe care label.FIG. 1 Measurement MarksD4721 123910.3.1 When chlorine bleach is to be used, introduce a chlorine-type household
40、bleach containing 5.25 % sodium hypochlorite(5 % available chlorine) into the washer in the manner directed by the bleach manufacturers instructions. When testing withnon-chlorine is indicated, introduce it into the washer in the amount and manner directed by the bleach manufacturer.NOTE2Many 3Many
41、bedcovering products, such as comforters, bedspreads, and blankets, either will not fit into a domestic type washing machineor dryer, or will be so crowded that they will be damaged by the agitator, or will not permit air flow in the dryer. Such large items should be tested ina large front loading m
42、achine, such as those available in many laundromats. The care instructions should recommend such a machine, rather than only“machine wash”, which implies domestic-type equipment.9.3.2Dry10.3.2 Dry items following permanently attached care label or as directed in AATCC Method 135.910.3.3 Evaluate the
43、 items for durable press where applicable as in AATCC Method 143.9.3.4For10.3.4 For ironing where applicable, follow the procedure in section 6.3.1 of AATCC Method 135.910.3.5 Repeat laundering, drying, and ironing four times, or as agreed upon by the purchaser and supplier.9.4If10.4 If the item is
44、to be drycleaned, refurbish as directed in AATCC Method 158.910.4.1 Repeat two or more times as agreed upon by purchaser and supplier.10.11. Bedcoverings Performance Characteristics After Refurbishing101.1 Remeasure the items as directed in Section 119 and record measurements. Calculate percent dime
45、nsional change usingthe following equation:Percent Change 5F 2 OO3 100where:F = final measurement, andO = original measurement.101.1.1 Negative value is an indication of shrinkage. Positive value is an indication of growth.101.2 Reexamine the items for shade difference from part to part, as directed
46、 in 8.3.101.3 Examine the items for any defects obvious after refurbishing.101.4 Evaluate joining seam performance (strength) as directed in Test Method D1683 for woven fabrics or Test Method D3940for knit fabrics. Evaluate appearance of all seams as directed in AATCC Method 88B.11.Procedure for Mea
47、suring Bedcoverings11.1Condition the bedcoverings, laid flat in the standard atmosphere for testing textiles as directed in Practice D1776 for at least4h.11.2When necessary, mark the dimension to be measured with a suitable marking device.11.3Unless otherwise stipulated by mutual agreement between p
48、urchaser and supplier, make original measurement marks at thelocations shown in Fig. 1.11.3.1Measure the total length of the bedcovering 250 mm (10 in.) in from each selvage or hem and in the middle of thecovering, including all ruffles, flounces, and trims (A-A, Fig. 1) in a relaxed state, taking c
49、are that all wrinkles have been removed.11.3.2Measure the total width of bedcovering 250 mm (10 in.) from each selvage or hem and in the middle including all ruffles,flounces, and trims (B-B, Fig. 1) in a relaxed state, taking care that all wrinkles have been removed.11.3.3Mark the inner edge of ruffle or flounce where attached to item with 250-mm (10-in.) or 1-m (36-in.) gage marks (D-D,Fig. 1). Permitting all fullness to remain, mark the outer edge of the ruffle or flounce with corresponding gage marks (E, Fig. 1).Measure full dimensions between second set
