1、Designation: D 579 04Standard Specification forGreige Woven Glass Fabrics1This standard is issued under the fixed designation D 579; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses
2、 indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers greige fabrics woven from “E”electrical glass fi
3、ber yarns. This specification can also beapplied to fabrics made of other glass fiber types as agreedupon between the purchaser and the supplier.1.2 This specification specifies the terminology, definitions,general requirements and physical requirements for greigeglass fiber fabrics. This specificat
4、ion permits the application oforganic materials to the glass fiber yarn during manufacturethat helps facilitate weaving.1.3 This specification shows the values in both SI units andin inch-pound units. “SI units” is the technically correct namefor the system of metric units known as the International
5、System of Units. “Inch-pound units” is the technically correctname for the customary units used in the United States. Thevalues in SI units are provided as information only; the valuesstated in inch-pound units are to be regarded as standard.1.4 This specification is one of a series to provide asubs
6、titute for Military Specifications: MIL-Y-1140 Yarn, Cord,Sleeving, Cloth, and Tape-Glass; and MIL-C-9084 Cloth,Glass Finished for Resin Laminates.1.5 Additional ASTM specifications in this series have beendrafted and appear in current editions of the Annual Book ofASTM Standards. These include fini
7、shed glass fabrics, unfin-ished glass fabrics, glass tapes, glass sleevings, glass cords,glass sewing threads, and finished laminates made from fin-ished glass fabrics.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of
8、 the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents22.1 ASTM Standards:D 123 Terminology Relating to TextilesD 578 Specification for Glass Fiber StrandsD 1059 Test Method for
9、Yarn Number Based on Short-Length SpecimensD 1423 Test Method for Twist in Yarns by the Direct-Counting MethodD 1776 Practice for Conditioning Textiles for TestingD 1777 Method for Measuring Thickness of Textile Mate-rialsD 3773 Test Methods for Length of Woven FabricD 3774 Test Methods for Width of
10、 Textile FabricD 3775 Test Method for Warp End Count and Filling PickCount of Woven FabricD 3776 Test Methods for Mass Per Unit Area (Weight) ofFabricD 4029 Specification for Finished Woven Glass FabricsD 4963 Test Method for Ignition Loss of Glass Strands andFabricsD 5035 Test Method for Breaking F
11、orce and Elongation ofTextile Fabrics (Strip Method)2.2 ANSI Standards:ANSI/ASQC Z1.4 Sampling Procedures for Inspection byAttributes32.3 Military Standard and Specifications:MIL-Y-1140H Yarn, Cord, Sleeving, Cloth and Tape-Glass4MIL-C-9084C Cloth, Glass Finished for Resin Laminates42.4 Textile Inst
12、itute Documents:Textile Terms and Definitions5Woven Cloth Construction51This specification is under the jurisdiction of ASTM Committee D13 onTextiles and is the direct responsibility of Subcommittee D13.18 on Glass Fiber andits Products.Current edition approved March 1, 2004. Published April 2004. O
13、riginallyapproved in 1940. Last previous edition approved in 1997 as D 579 97.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page on
14、the ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.4Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.5Available from the Textile Institute, 10 Bla
15、ckfriars St., Manchester, M3 5DREngland.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.4 Institute for Interconnecting and Packaging CircuitsStandard:IPC-4412 Specification for Finished Fabric Woven from EGlass for Printed Boards6
16、3. Terminology3.1 Definitions:3.1.1 atmosphere for testing textiles, nfor glass, air main-tained at a relative humidity of at least 48 % and no greaterthan 67 %, and at a temperature of at least 20C (68F) and nogreater than 25C (77F).3.1.1.1 DiscussionGlass textiles are used in various prod-ucts suc
17、h as reinforced plastics, mat-like material, tire cords,electrical insulation, etc. Each of these materials requiredifferent testing atmospheres. It is the intent of this wide spreadin testing atmosphere to allow testing of glass textiles inrespective laboratories where end product test atmospherere
18、quirements differ. The test atmospheres for respective prod-ucts should be controlled as specified in Practice D 1776.Itisthe opinion of Subcommittee D13.18 that the physical proper-ties cited in respective specifications would not be affected bythe range selected. In any event, the test atmosphere
19、should bestated in the report.3.1.2 continuous filament yarn, na yarn made of filamentsthat extend substantially throughout the length of the yarn.3.1.3 crowfoot weave, na broken-twill weave one-up andthree-down or three-up and one-down with two ends to theright and two ends to the left, commonly re
20、ferred to asfour-harness satin or broken crow.3.1.3.1 DiscussionSee Fig. A1.1 in Annex for the basicweave diagram.3.1.4 eight-harness satin, na warp-faced or filling-facedweave illustrating that the entire face of the fabric surface iscovered with warp or filling yarn, respectively.3.1.4.1 Discussio
21、nThere are no distinguishable diagonallines. In warp-faced fabrics warp yarns show on the face of thefabric seven out of eight adjacent yarns, and in filling-facedfabrics filling yarns show on the face of the fabric seven out ofeight adjacent yarns. See Fig. A1.5 in Annex for the basicweave diagram.
22、3.1.5 greige goods, ntextile fabrics that have received nobleaching, dyeing, or finishing treatment after being producedby any textile process.3.1.6 leno weave, na weave in which two adjacent warpyarns cross each other between the picks.3.1.6.1 DiscussionSee Fig. A1.3 in Annex for the basicweave dia
23、gram.3.1.7 mock leno weave, na weave in which the warp yarnsremain parallel but form open warp stripes by programmedinterlacing of warp and filling yarns simulating a leno appear-ance.3.1.7.1 DiscussionSee Fig. A1.4 in Annex for the basicweave diagram.3.1.8 twelve-harness satin, na weave similar to
24、eight-harness satin except in warp-faced fabrics warp yarns show onthe face of the fabric eleven out of twelve adjacent yarns andin filling-faced fabrics filling yarns show on the face eleven outof twelve adjacent yarns.3.1.8.1 DiscussionSee Fig. A1.6 in Annex for the basicweave diagram.3.2 For defi
25、nitions of other textile terms used in thisspecification, refer to Terminology D 123.CLASSIFICATION4. Classification4.1 The designation of a fabric shall be by style numbersthat are standard throughout the industry. Generally used stylenumbers are listed in numerical order in Table 8.REQUIREMENTS5.
26、Material5.1 The yarn shall be continuous filament, unless otherwisespecified, free of any free alkali metal salts, such as soda orpotash, and foreign particles, dirt, and other impurities.6. Fabric Count6.1 For fabrics listed in Table 8, the nominal fabric countshall conform to the requirements of T
27、able 8. For fabrics notlisted in Table 8, the nominal fabric count shall be agreed uponbetween the purchaser and the supplier. The average count ofwarp ends shall be within two ends of the nominal count, andthe average count of the filling picks shall be within two picksof the nominal count.7. Yarn
28、Designations7.1 For fabrics listed in Table 8, the yarn designations shallconform to the requirements of Table 8. For fabrics not listedin Table 8, the yarn designations shall be agreed upon betweenthe purchaser and the seller. The requirements of the individualelements of the designation are specif
29、ied in Sections 8-12.7.1.1 In some cases ECE 225 yarn is specified in Table 8.ECD 225 may be substituted with no significant decrease inproperty performance.8. Yarn Number8.1 For fabrics listed in Table 8, the nominal size-free yarnnumbers of the yarns designated shall conform to Specification6Avail
30、able from the Institute for Interconnecting and Packaging ElectronicCircuits, 7380 N. Lincoln Ave., Lincolnwood, IL 60646.TABLE 1 Twist TolerancesTolerancesTurns per Centimetre:From zero to 0.4, incl 60.1 turn per centimetreOver 0.4 and up to and including4.060.2 turn per centimetreOver 4 65.0 % of
31、the specified average twistTurns per Metre:From zero to 40, incl 610 turns per metreOver 40 and up to and including400620 turns per metreOver 400 65.0 % of the specified average twistTurns per Inch:From zero to 1, incl 60.25 turn per inchOver 1 and up to and including 10 60.5 turn per inchOver 10 65
32、.0 % of the specified average twistD579042D 578. For fabrics not listed in Table 8, the nominal size-freeyarn number shall be agreed upon between purchaser andsupplier.9. Filament Diameter9.1 The nominal filament diameter for yarns in the fabricshall conform to the nominal range for filament diamete
33、raverage values specified in Table 1 of Specification D 578.10. Strand Construction10.1 The basis for specifying strand construction is given inSpecification D 578. For fabrics listed in Table 8, the construc-tion of the component strands shall conform to the require-ments of Table 8. For fabrics no
34、t listed in Table 8, theconstruction of the component strands shall be agreed uponbetween the purchaser and the supplier.11. Direction of Twist11.1 Unless otherwise agreed upon between the purchaserand the supplier, the primary twist in the singles strands shallbe “Z” twist and the final twist in th
35、e plied yarns shall be “S”twist.12. Twist Level12.1 The nominal twist in the component strands and thefinished yarns shall conform to the requirements of Table 8 inSpecification D 578. The tolerances for the primary twist andthe final twist shall conform to Table 1 of this document unlessotherwise a
36、greed upon between the purchaser and the supplier.13. Fabric Weave Type13.1 For fabrics listed in Table 8, the fabric weave type shallconform to the requirements of Table 8. For fabrics not listedin Table 8, the fabric weave type shall be agreed upon betweenthe purchaser and the supplier.14. Mass Pe
37、r Unit Area14.1 For fabrics listed in Table 8, the nominal mass per unitarea shall conform to the requirement of Table 8. For fabricsnot listed in Table 8, the nominal mass per unit area shall beagreed upon between the purchaser and the supplier. Theaverage mass per unit area for the lot shall confo
38、rm to therequirements of Table 2.15. Thickness15.1 For fabrics listed in Table 8, the nominal thicknessshall conform to the requirements of Table 8. For fabrics notlisted in Table 8, the nominal thickness shall be agreed uponbetween the purchaser and the supplier. The average thicknessof the fabric
39、in the lot shall conform to the requirements ofTable 3, unless specified otherwise.16. Breaking Strength16.1 For fabrics listed in Table 8, the minimum breakingstrength shall conform to the requirements of Table 8. Forfabrics and/or breaking strength not listed in Table 8, theminimum breaking streng
40、th shall be agreed upon between thepurchaser and the supplier. The average breaking strength forthe lot shall exceed the specified breaking strength, and noindividual break shall be less than 80 % of the specifiedminimum breaking strength.17. Width17.1 Fabric width shall be agreed upon between the p
41、ur-chaser and the supplier. The fabric width, including bothselvages but excluding any feathered edges, shall be nonarrower than the specified width and no more than 13 mm (0.5in.) wider than the specified width.NOTE 1During the processing of glass fabrics, the selvages may beslit to minimize tensio
42、n influences. This slit distance is generally excludedwhen measuring the fabric width.18. Length18.1 The fabric roll length, length between splices, andnumber of splices per roll shall be agreed upon betweenpurchaser and supplier. All splices must be thermoset unlessotherwise agreed upon between the
43、 purchaser and supplier.19. Ignition Loss19.1 The ignition loss of greige fabric shall be less than4.0 % unless otherwise agreed upon between the purchaser andthe supplier.20. Fabric Appearance20.1 The woven greige fabric shall be generally uniform inquality and condition, clean, smooth, and free of
44、 foreignparticles and defects detrimental to fabrication, appearance, orperformance. Current industry practice for fabrics utilized inelectronics applications is described in IPC-4412 in Section4.4.1 Fabric Appearance.20.2 The fabric in the laboratory sample for the fabricappearance shall be examine
45、d for the defects listed in Table 4and the acceptable quality levels (AQLs) are 2.5 major and 6.5total (major and minor combined) defects per hundred units offabric unless otherwise agreed upon between the purchaser andthe supplier.20.3 When specified, the warp direction of the fabric shallbe marked
46、 by blue direction-indicator yarns running warpwisein the cloth and spaced approximately 150 mm (6 in.) apart.TABLE 2 TolerancesMass/Unit AreaNominal Mass/Unit Area,g/m2(oz/yd2)Permissible Variation,%136 (4.0) and under 610Over 136 (4.0) 66TABLE 3 TolerancesThicknessNominal ThicknessPermissible Vari
47、a-tionsmillimetres0.075 and under 60.013Over 0.075 to 0.250 60.025Over 0.250 to 0.380 60.050Over 0.380 60.075inches0.0030 and under 60.0005Over 0.0030 to 0.0100 60.0010Over 0.0100 to 0.0150 60.0020Over 0.0150 60.0030D57904320.4 Preservation and packaging for fabrics utilized inelectronics applicatio
48、ns are described in IPC-4412, Section 5.1.21. Put-Up21.1 Fabric shall be furnished in rolls and shall be wound onspiral tubes. The tube dimensions shall be shall be as agreedupon between the purchaser and supplier. The maximumnumber of pieces contained in any roll shall be as specified in18.1.22. Sa
49、mpling22.1 Lot SizeA lot shall consist of each 9000 m (10 000yd) of a single fabric style unless otherwise agreed uponbetween the purchaser and the supplier.22.1.1 When small multiple shipments are made from aninspected lot, the shipments may be made without additionalinspection as agreed upon between the purchaser and thesupplier.22.2 Lot SampleTake at random as a lot sample thenumber of rolls of fabric specified in ANSI/ASQC Z1.4 and asingle sampling plan, unless otherwise agreed upon.22.3 Laboratory SampleAs a laboratory sample, take thefollowing samples:22
