1、 The following commercial specification is adopted from the military document. Revision A includes all known accepted revisions, amendments, notices, and Department of Defense (DoD) engineering changes previously developed for this item. Revision B and forward include changes adopted by DoD and Indu
2、stry to reflect technology and design evolution. _ WEBBING, TEXTILE, COTTON WARP The Parachute Industry Association makes this document available for use by Industry and Government organizations that wish to apply this specification to their products. 1. SCOPE 1.1 Scope. This document covers materia
3、ls and construction of various types of cotton and cotton-nylon webbing woven on both shuttle and shuttleless looms. 1.2 Classification. The webbing shall be of the types indicated in TABLES II, III and IV as specified (see 6.2). Unless otherwise specified (see 6.2), webbings woven on both shuttle a
4、nd shuttleless looms shall be permitted. 1.3 Classes. The webbing shall be furnished in the following classes, as specified (see 6.2). Class 1A - Undyed and not fungus proofed Class 1B - Undyed and fungus proofed Class 2A - Dyed and not fungus proofed Class 2B - Dyed and fungus proofed Class 3 - Res
5、in dyed and fungus proofed during dyeing 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in Sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification nor is it recommended for additional infor
6、mation or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements documents cited in Sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. DISTRIBUTI
7、ON STATEMENT: All Rights Reserved. No Part of this publication may be reproduced without prior written permission from Parachute Industry Association. Additional copies may be purchased on-line from the PIA Store at: . PIA-W-5665D 23 March 2011 Superseding PIA-W-5665C 09 May 2008 PIA-W-5665D Page 2
8、of 22 2.2.1 Government publications. The following Government publication forms a part of this document (see 2.4). FEDERAL TRADE COMMISSION (FTC) 16 CFR 303 - Rules and Regulations under the Textile Fiber Products Identification Act (Copies are available online at: www.ftc.gov or from the Federal Tr
9、ade Commission, 600 Pennsylvania Avenue, N.W. Washington, DC 20580-0001. Electronic copies may also be obtained from www.access.gpo.gov/.) 2.3 Non-government publications. The following document(s) form a part of this document to the extent specified herein. AMERICAN SOCIETY FOR QUALITY (ASQ) ANSI/A
10、SQ Z1.4 - Sampling Procedures and Tables for Inspection of Attributes (Copies are available online at: www.asq.org or from the American Society for Quality, 600 North Plankinton Avenue, Milwaukee, WI 53203.) ASTM INTERNATIONAL (ASTM) ASTM D 276 - Standard Test Methods for Identification of Fibers in
11、 Textiles ASTM D 1776 - Standard Practice for Conditioning and Testing Textiles ASTM D 1777 - Standard Test Method for Thickness of Textile Materials ASTM D 1907 - Standard Test Method for Yarn Number by the Skein Method ASTM D 3774 - Standard Test Method for Width of Textile Fabrics ASTM D 3775 - S
12、tandard Test Method for Warp (End) and Filling (Pick) Count of Woven Fabrics ASTM D 3776 - Standard Test Methods for Mass Per Unit Area (Weight) of Fabric (Application for copies should be addressed to ASTM International, 100 Barr Barbour Drive, West Conshohocken, PA 19428-2959. Electronic copies ma
13、y be obtained from www.astm.org.) AMERICAN ASSOCIATION OF TEXTILE CHEMISTS AND COLORISTS (AATCC) AATCC 8 - Colorfastness to Crocking; Crockmeter Method AATCC 16 - Colorfastness to Light AATCC 20 - Fiber Analysis: Qualitative AATCC 30 - Antifungal Activity, Assessment on Textile Materials: Mildew and
14、 Rot Resistance of Textile Materials AATCC 81 - pH of the Water-Extract from Wet Processed Textiles AATCC 107 - Colorfastness to Water AATCC 192 - Weather Resistance of Textiles: Sunshine-Arc Lamp Exposure with and without Wetting PIA-W-5665D Page 3 of 22 AATCC Evaluation Procedures: - 1 Gray Scale
15、for Color Change - 2 Gray Scale for Staining - 8 AATCC 9 - Step Chromatic Transference Scale - 9 Visual Assessment of Color Difference of Textiles (Application for copies should be addressed to AATCC National Headquarters, P.O. Box 12215, Research Triangle Park, NC 27709-2215. Electronic copies may
16、be obtained from www.aatcc.org.) PARACHUTE INDUSTRY ASSOCIATION (PIA) PIA-TEST METHOD-2611 - NONFIBROUS MATERIALS IN COTTON, ENZYME METHOD PIA-TEST METHOD-4108 - STRENGTH AND ELONGATION, BREAKING; TEXTILE WEBBING, TAPE AND BRAIDED ITEMS (Electronic copies may be obtained from .) COLOR ASSOCIATION OF
17、 THE UNITED STATES (CAUS) The Standard Color Reference of America, CA # Cable Number (To obtain color standards go to or email or address to Color Association of the United States, 315 West 39th Street, Studio 507, New York, NY 10018.) 2.4 Revision levels of subsidiary documents. The Government an
18、d non-government publications listed in Section 2 shall be defined as subsidiary documents. Unless otherwise specified by the procuring activity, the revision level of the subsidiary documents, except for PIA- TEST METHOD-2611 and PIA-TEST METHOD-4108, shall be the latest revision level as listed in
19、 the Acquisition Streamlining and Standardization Information System (ASSIST) database located at: https:/assist.daps.dal.mil/quicksearch/. For PIA-TEST METHOD-2611 and PIA- TEST METHOD-4108 the latest revision level to be used, shall be obtained from the PIA website. 2.5 Order of precedence. In the
20、 event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Standard. Where applica
21、ble, the webbing shall match the standard for shade and appearance and shall, unless otherwise indicated, be equal to or better than the standard with respect to all characteristics for which the standard is referenced (see 6.1). PIA-W-5665D Page 4 of 22 3.2 First article. When specified (see 6.2),
22、a sample shall be subjected to first article inspection in accordance with 4.2. 3.3 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds th
23、e operational and maintenance requirements and promotes economically advantageous life cycle costs. 3.4 Material (see 3.3). 3.4.1 Cotton yarns. The warp yarns for all types and the filling yarns for Types I, II, IIa, III, IIIa, IV, V, VI, VII, IX, XII, XIII, XVII, XVIII, XIX and XX shall be spun and
24、 twisted from carded or combed cotton. The catch-cord thread on the shuttleless loom, where applicable (see TABLE IV), shall be carded or combed peeler cotton yarn. 3.4.2 Nylon yarns. The filling yarn for Types VIII, X, XV, XVI and the catch-cord thread on the shuttleless loom, where applicable (see
25、 TABLE IV), shall be continuous filament, bright, high tenacity, light and heat resistant polyamide prepared from hexamethylene diamine and adipic acid derivatives. The melt point shall be 244C (471F) minimum. The nylon yarns shall not be bleached. 3.5 Color. The color of the webbing and its referen
26、ce standard shall be as specified by the procuring activity or order (see 6.2). Unless otherwise specified, when dyed webbing is required to be fungus proofed, Classes 2B or 3 may be used. 3.5.1 Dyeing, Classes 2A and 2B. Oil dyeing and the use of dyes and compounds containing elementary sulfur capa
27、ble of oxidation to sulfuric acid are prohibited. The dyestuff shall be chosen and applied so that the dyed and finished webbing shall contain no more labile sulfur than shown by the standard when tested as specified in 4.4.4. When a standard is not available, the dyed and finished webbing shall sho
28、w no more than a slight trace of labile sulfur, as defined in the test method specified in 4.4.4. For treated webbing, determination of sulfur content shall be made after dyeing but prior to the application of the finish. The shade of the Class 2B webbing prior to the application of the finish shall
29、 match the standard. The shade of the Class 2B webbing after finishing shall be that resulting from the base shade and the color imparted by the specified finish. 3.5.2 Dyeing, Class 3. Class 3 shall be resin dyed, and the fungus resistant treatment shall be added during the dyeing process. The dyed
30、 and finished Class 3 webbing shall match the standard for the shade specified. 3.5.3 Visual shade matching. The color of the dyed webbing for Classes 2, 2B (prior to the application of the treatment) and Class 3 shall match the standard when viewed using the AATCC Evaluation Procedure 9, Option A,
31、with sources simulating artificial daylight D75 illuminate, with color temperature of 7500 200K, with illumination of 100 20 foot candles, and shall be a good match to the standard under incandescent lamplight at 2856 200K. 3.5.4 Colorfastness, Class 2A and 2B (prior to application of the treatment)
32、. The dyed webbing shall show fastness as follows: (THIS SPACE LEFT INTENTIONALLY BLANK) PIA-W-5665D Page 5 of 22 Notes: 1/Rated using the AATCC Evaluation Procedure 1, Gray Scale for Color Change. 2/Rated using the AATCC Evaluation Procedure 8, AATCC9-Step Chromatic Transference Scale. 3.5.5 Colorf
33、astness, Class 3. The dyed webbing shall show fastness as follows: Notes: 1/Rated using the AATCC Evaluation Procedure 1, Gray Scale for Color Change and AATCC Evaluation Procedure 2, Gray Scale for Staining. 2/Rated using the AATCC Evaluation Procedure 1, Gray Scale for Color Change. 3/Rated using
34、the AATCC Evaluation Procedure 8, AATCC 9-Step Chromatic Transference Scale. 3.6 Identification yarns. Colored warp ends shall be woven into the webbing, as specified herein, to permanently identify the webbing by type and when shuttleless construction is utilized. The dye used in the identification
35、 yarns shall have no adverse effect on the physical properties of the fabric, and the dyed yarns shall show no bleeding or color transfer when subjected to the tests as specified in 3.6.1. 3.6.1 Colorfastness of identification yarns. The type identification and catch-cord shall show fastness as foll
36、ows: Note: 1/Rated using the AATCC Evaluation Procedure 1, Gray Scale for Color Change. 3.6.2 Type identification. The identification of type shall be as specified in TABLE I. The color of the identification yarns shall match the cable numbers of the Color Association of the United States, Inc. (THI
37、S SPACE LEFT INTENTIONALLY BLANK) Characteristic Rating, Min Light 1/2-3 Crocking: 2/Dry Wet 3.5 1.5 Testing shall be specified in 4.4.4 Characteristic Rating, Min Water 1/, 3/2-3 Weathering 2/2-3 Crocking: 3/Dry 1.5 Testing shall be specified in 4.4.4 Characteristic Rating, Min Weathering 1/2-3 Tes
38、ting shall be specified in 4.4.4 PIA-W-5665D Page 6 of 22 TABLE I Identification of Type. Type Color Cable No. Yarns and location VII Black - 2 at each selvage VIII Black - 2 at center of warp XIII Red 80081 2 at center of warp XV Red 80081 2 at each selvage XVI Yellow 80068 1/2 at center of warp No
39、te: 1/ Any yellow shade approximating No. 80068 is acceptable. 3.6.3 Shuttleless loom identification. The webbing shall contain a black catch-cord yarn as shown in FIGURES 1, 2, and 3. The yarn shall be as outlined in TABLE IV. The nylon yarn shall be color Seal Black. The cotton yarn for the latch
40、needle edge shall be vat dyed black. The dye used for the catch-cord yarn shall have no adverse effect on the physical properties of the fabric and the dyed yarns shall show no bleeding or color transfer when subjected to the tests as specified in TABLE V. 3.7 Physical requirements. The webbing shal
41、l conform to the physical requirements specified in TABLES II, III or IV when tested as specified in 4.4.4. 3.7.1 Nonfibrous materials. The starch and protein content, including chloroform-soluble and water-soluble material, shall not exceed 7.0 percent when tested as specified in 4.4.4. The webbing
42、 for Classes 1B, 2B and 3 shall be tested prior to adding the fungus-resistant treatment and resin formulation. 3.7.2 Shrinkage. The shrinkage of the finished webbing shall not exceed 12.5 percent when tested as specified in 4.4.4. 3.7.3 Curvature. The finished webbing shall show no more lateral cur
43、vature than inch within a yard when tested as specified in 4.4.4. 3.7.4 Breaking strength. The breaking strength of any individual specimen shall be no lower than the minimum specified in TABLES II, III or IV. (THIS SPACE INTENTIONALLY LEFT BLANK) PIA-W-5665D Page 7 of 22 TABLE II Construction and p
44、hysical properties for all Types except XIX (shuttle loom). Type Width (inches) Thickness (inches) Weight oz/linear yd), max. Breaking strength, warp full width (lbs.), min. Ply of warp ends, min. No. of warp ends full width, min. Filling (yarns per inch), min. Filling yarn size (5 percent) I 9/16 1
45、/16 0.040-0.050 0.40 350 4 68 20 20/4 II 1 1/16 0.040-0.050 0.75 575 4 122 20 20/4 IIa 1 1/16 0.040-0.070 0.85 575 4 122 20 20/4 III 1-1/4 1/16 0.040-0.050 0.90 750 4 158 20 20/4 IIIa 1-1/4 1/16 0.040-0.070 1.05 750 4 158 20 20/4 IV 3 1/8 0.050-0.100 2.50 1,900 3 220 16 8/4 V 5 1/8 0.050-0.100 4.30
46、2,750 3 350 16 8/4 VI 1-3/4 1/16 0.070-0.090 2.20 1,500 5 116 11 8/4 VII 1-3/4 1/16 0.140-0.170 3.00 2,600 7 122 1/ 24 8/5 VIII 1 3/4 1/16 0.070-0.095 3.00 1,200 7 106 10 210/5 or 1050/1 IX 3 1/8 0.090-0.115 4.65 4,500 6 175 12 8/5 X 1 3/4 1/16 0.125-0.170 4.00 4,700 6 160 1/20 210/5 or 1050/1 XII 1
47、 3/4 1/16 0.040-0.060 1.25 900 4 220 20 20/4 XIII 1 3/4 1/16 0.095-0.130 3.40 3,400 6 126 11 10/5 XV 1 3/4 1/16 0.130-0.150 3.50 4,500 6 150 1/20 210/5 or 1050/1 XVI 1 3/4 1/16 0.090-0.115 2.60 2,700 7 124 10 210/6 or 1260/1 XVII 1 1/16 0.075-0.095 1.25 900 5 70 11 8/4 XVIII 2 1/2 1/16 0.050-0.060 1
48、.40 1,250 4 270 20 20/4 XX 5/8 1/16 0.075-0.095 0.45 200 3 40 2/19 20/4 Notes: 1/In Types VII, X and XV the total ends include 12 warp ends woven as selvage. 2/Includes a minimum of 5 binder warp ends. TABLE III Construction and physical properties Type XIX (shuttle loom). Yarn sizes (5 percent) Typ
49、e Width (inches) Thickness (inches) Weight (oz/ linear yd), min. Breaking strength, warp full width (lbs.), min. Threads full width, min., face and back warp Binder warp Filling yarns per inch), min. Warp, face and back Binder, warp Filling XIX 2 1/16 0.130 0.010 3.68 2500 139 33 21 11/9 or 10/7 10.4 8/7 PIA-W-5665D Page 8 of 22 TABLE IV Construction and physical properties (shuttlel
