1、MIL-C-437918 3 m 7977906 0376212 4 /Y-37-07 - MIL-C-437 9 1B 13 February 1979 SUPERSEDING MIL-C-43791A 21 April 1975 MIL ITARY SPEC IF C AT ION CLOTH, TWILL, POLYESTER/COTTON (DURABLE PRESS) This specification is approved for use by all Departments and Agencies of the Department of Defense, 1. SCOPE
2、 * 1.1 Scope. This specification covers blended polyester and cotton cloth, chemically treated with a durable press finish, for manufacturing durable press unif oms. * 1.2 Classification. The cloth covered by this specification shall be of the following types, as specified (see 6.2): Type I for dres
3、s uniforms (postcured resin application) Type II for utility uniforms Class 1 - Postcured resin application Class 2 - Precured resin application Class 3 - Precured resin application containing soil release resins 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. The following documents, of the issue
4、in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein, - Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Natick, 14A
5、01760, by using the self-addressed Standardization Docu- ment Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. US Army Natick Research and Development Command, FSC 8305 . I. 1: Provided by IHSNot for ResaleNo reproduction or networking permitted without license
6、 from IHS-,-,-MIL-C-43771B 83 799770b 0396213 b MIL-C-437 91B SPECIFICATIONS FEDERAL PPP-P-1134 - Packaging and Packing of Cotton and Cotton-Synthetic Fiber Blend Fabrics (Excluding Duck Fabrics) MILITARY MIL-T-43548 - Thread, Polyester, Cotton-Covered MIL-T-43624 - Thread, Polyester, Spun STANDARDS
7、 FEDERAL FED-STD-4 - Glossary of Fabric Imperfections FED-STD-191 - Textile Test Methods MIL IT ARY MIL-STD-205 - Sampling Procedures and Tables for Inspection by At tributes (Copies of specifications, standards, drawings and publications required by contractors in connection with specific procureme
8、nt functions should be obtained from the procuring activity or as directed by the contracting officer.) i LAWS AND REGULATIONS RULES AND REGULATIONS UNDER THE TEXTILE FIBER PRODUCTS IDENTIFICATION ACT (Copies may be obtained without charge from the Federal Trade Commission, Washington, DC 20580 ) 2.
9、2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply: TECHNICAL MANUAL OP THE AMERICAN ASSOCIATION OF TEXTILE CHEMISTS AND COL
10、ORISTS Method No. 119-1970 Color Change Due to Flat Abrasion (Frosting): Screen Wire Method 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-3773B _ 3 H 7777706 0376234 8 MIL-C-43791B Method No, 124-1978 Appearance of Durable Press Fabrics aft
11、er Repeated Home Launderings Method No. 88C-1975 Appearance of Creases in Wash and Wear Items after lome Laundering (Application for copies should be addressed to AATCC National Headquarters , P. O, Box 12215, Research Triangle Park, NC 27709.) 3. REQUIRbfETS 3.1 Standard sample. The dyed, treated,
12、pressed and cured cloth, shall match the standard sample (which has been pressed and cured for shade), and shall be equal to or better than the standard sample with respect to all characteristics for which the standard sample is referenced (see 6.3). 3,2 Materials (see 6.7). 3.2,1 F-iber blend. 3.2.
13、1.1 Polyester fiber. The fiber shall be polyethylene glycol terephthalate, semi-dull. The denier shall not be greater than 2.5 (2.8 dtex) and the staple shall be approximately 1-1/2 inch (38 mm) in length. 3.2.1.2 Cotton fiber. Type I - The cotton shall be combed, Type II - The cotton shall be carde
14、d or combed. 3.2.2 Yarn. The warp and filling yarn shall be a blend of 50 2 5 percent polyester and the remaining percentage cotton, based on the dry weight of the dyed cloth before treatment, when tested as specified in 4.4. The warp shall be a 2-ply yarn for type I and cingles for type II and the
15、filling shall be singles yarn for both types (see 6.3.1). 3.3 Color. Unless otherwise specified, the color of the cured type I cloth shall be Army Tan 445 to match the standard sample and the color of the cured type II cloth shall be Olive Green 507 to match the standard sample (see 6.3), vat dyes o
16、r a combination of selected vat and dispersed dyes. type II cloth shall be imparted by the use of a combination of selected vat and dispersed dyes. by a continuous thermal fixation, steam reduction and oxidation procedure (see 6.3.2). The color for type I cloth shall be imparted by the use of select
17、ed The color for The color for both types I and II cloth shall be applied 3.3.1 Labile sulfur. The use of dyes and compounds containing elementary sulfur capable of oxidation to sulfuric acid is prohibited. The dyed pressed and cured cloth shall show not more than a slight trace of labile sulfur as
18、defined in the test method, when tested as specified in 4.4. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-C-g3771B 3 W 7799706 0376235 T W - MIL-C-43 7 9 1B * 3.3.2 Matching. The color of the cured cloth shall match the standard sample und
19、er artificial daylight having a color temperature of 7500 kelvin and shall be a good approximation to the standard sample under incandescent lamplight at 2800 kelvin, when examined as specified in 4.2.2.3 (see 6.3.2). * 3.3.3 Colorfastness. The cured cloth shall show fastness to laundering (after 3
20、cycles) crocking, perspiration, frosting, sublimat9on and light equal to or better than the standard sample when tested as specified in 4.4. When no standard sample is available, or when the standard sample is not referenced for colorfastness, the cured cloth shall show “good“ colorfastness to laund
21、ering (after 3 cycles), perspiration, sublimation, light after 40 hours and no more crocking than Munsell Value 8.5, also no more frosting than 4-5 on the grey scale, when tested as Specified in 4.4. * 3.4 Physical requirements. The cured cloth shall conform to the requirements specified in table I
22、when tested as specified in 4.4. TABLE I. Physical requirements Yarns per inch Breaking strength Tearing strength Weight (per cm) lbs. (Newtons) lbs. (Newtons) oz/sq. yd. minimum minimum minimum Type Wm2) Warp Filling Warp Filling Warp Filling I 7.3 + 0.5 104 50 170 80 5.0 3.0 (247-2 17) (41) (20) (
23、756) (356) (22) (13) II 7.3 f 0.5 85 45 14 5 90 5.0 5.0 (247 2 17) (33) (18) (645) (400) (22) (22) 3.4.1 Width. The width of the cloth shall be as specified (see 6.2) and shall be the minimum acceptable width inclusive of selvages. 3.4.2 Weave. Type I - The weave shall be 2 up - 1 down right hand tw
24、ill. Type II - The weave shall be 2 up - 1 down left hand twill. 3.5 Cloth preparation. The type I cloth shall be desized, scoured, mercerized, bleached and heat set prior to dyeing. scoured, mercerized and heat set prior to dyeing. The type II cloth shall be- desized, 3.6 Nonfibrous materials. The
25、starch and protein content including chloro- fonn-soluble and water-soluble material of the scoured and dyed cloth shall not exceed 2.0 percent when tested as specified in 4.4. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-43791B 83 9999906
26、 O396236 I W MIL-C-437 9 1B 3.7 Dimensional stability. * 3.7.1 (For Government procurements of type I and type II, class 1 cloth only). The resin or reactant treated dyed cloth shall not shrink more than 2.0 percent in the warp and 1.5 percent in the filling under the curing conditions specified in
27、footnote/ of table III, when tested as specified in 4.4 (see 6.6). 3.7.2 The cured cloth shall have dimensional changes of not more than 2.5 percent in the warp and 1.5 percent in the filling after 15 launderings when tested as specified in 4.4. 3.8 Treatment. 3.8.1 Typ e f and type II, class 1. * T
28、he dyed cloth shall be given an approved (see 6,4), durable press and soil release treatment, consisting of a suitable catalyzed resin or reactant system in combination with a soil release agent and hand modifiers. Durable press resins and soil release agents other than those approved for use are pr
29、ohibited, shall meet the applicable requirements of this specification when tested as specified in 4.4, A wetting agent may be used to facilitate processing. The cloth shall be processed so that the uncured and cured cloth * 3.8,2 Type II, class 2. The dyed cloth shall be given an approved (see 6.4)
30、, durable press treatment. use are prohibited. meet the applicable requirements when tested as specified in 4.4. Durable press resins other than those approved for The cloth shall be processed so that the cured cloth shall * 3.8.3 Typ e II, class 3. The dyed cloth shall be treated as specified in 3.
31、8*1. specification when test as specified in 4.4. The precured treated cloth shall meet the applicable requirements of this * 3.8*4 Appearance, soil release and crease retention. The cured cloth shall show ratings not less than the following when tested after 15 launderings as specified in 4,4. Mini
32、mum average ratings per sample unit Appearance rating Soil release rating (not applicable for Crease retention rating (not.applicable for class 2) classes 2 and 3) 4.0 3.0 4aO 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-43791B 3.8.5 Spray
33、 rating limit. The results of the three individual deter- minations for spray rating on the cured cloth shall not be greater than the maximum values 70, 70, 70 when tested following 3 launderings as specified in 4.4. 3.9 Seam efficiency. * 309.1 Typ e I and type II, class 1. The dyed, treated and un
34、cured cloth shall have a seam efficiency of not less than 90 percent when tested as specified in 4.4. * 3.9.2 Type II, classes 2 and 3. The dyed treated and cured cloth shall have a seam efficiency of not less than 80 percent when tested as specified in 4.4. * 3.10 pH. The pH value of the water extr
35、act of the cured cloth shall be no less than 5.0 nor more than 8.5 when tested as Specified in 4.4. * 3.11 Length and put-up (for Government: procurement cloth only). Unless otherwise specified (see 6.2), the treated and uncured cloth for type I and type II, class 1, and the cured cloth for type II,
36、 classes 2 and 3 shall be furnished in continuous lengths each not less than 40 yards. be put up on rolls as specified in PPP-P-1134. Each length shall * 3.12 Fiber identification. Each roll shall be labeled or ticketed for fiber content in accordance with the Textile Fiber Products Identification A
37、ct. 3.13 Face identification. The face side of the cloth shall be identified by stamping on that side with the word “Face“ at each end of the roll. 3.14 The piece tickets for the cloth (see 5.31, shall show the date of application of the durable press and soil release treatment by month and year or
38、by actual date. b. 3.15 Workmanship. The cloth shall conform to the quality established by this specification, The demerit points per 100 square yards (84 m2) when calculated as specified in section 4 shall not exceed the established maximum point value. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsib
39、ility for inspection. Unless otherwise specified in the contract, the contractor is responsible for the performace of all inspection requirements as specified herein. contract, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specifie
40、d herein, unless disapproved by the Government. inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Except as otherwise specified in the The Government reserves the right to perform any of the 6 Pr
41、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-43791B 4.1.1 Certificate of compliance, Where certificates of compliance are submitted, the Government reserves the right to check test such items to determine the validity of the certification, 4.2
42、- Quality conformance inspection. Sampling or inspection shall be performed in accordance with MIL-STD-105, except where otherwise indicated hereinafter. 4.2.1 Component and material inspection, In accordance with 4.1 above, components and materials shall be tested in accordance with all the require
43、ments of referenced specifications, drawings, and standards unless otherwise excluded, amended, modified or qualified in this specification or applicable purchase documents. 4.2.2 Examination of the end item. Examination of the end item shall be in accordance with 4.2.2.1 through 4,2.2.4. 4.2.2.1 Ya
44、rd-by-yard examination. Each roll in the sample shall be examined on the face side only. yards (91 m), the entire yardage in the roll shall be examined. When the total yardage in the roll exceeds 100 yards (91m), only 100 yards (91m) shall be examined. noticeable at normal inspection distance 3 feet
45、 (lm) shall be scored and assigned demerit points as listed in 4.2,2.1rl, except that only those slubs and knots which exceed the limits shown on Sears Fabric Defect Scales (6.5), D for slubs and B for knots, shall be scored. No linear yard (increments of 1 yard (0.91 m) on the measuring device of t
46、he inspection machine) from any one roll within the sample shall be penalized more than 4 points. accordance with the following: When the total yardage in the roll does not exceed 100 All defects as defined in Section I of FED-STD-4, which are clearly The sample size shall be in Lot size (yards) 320
47、0 or less 3201 up to and including 10,000 10,001 and over Sample size (rolls) Nujol, Plough Inc., Memphis, Tennessee or AATCC Standard Blotting paper or equivalent. Five pound cylindrical weight, 2-1/2 inches (64 m) diameter. Dummy pieces for ballast - 36 x 36 inches (914 x 914 nun) hemmed of fabric
48、 similar to test specimens added $0 test specimens to make an approximately 4-pound (i, 8 kg) load. case of disputes, the Kenmore Model 600 shall be used). equivalent AATCC Glassine paper or equivalent. 4.4.3.1.2 of samples : The following apparatus and materials are required for evaluation 13 Provi
49、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-437 9 1B (a) Overhead lighting procedure. Apparatus shall be as specified in AATCC Test Method 124-1978, Appearance of Durable Press Fabrics after Repeated Home Launderings. In addition AATCC three dimensional Durable Press Replicas, Deering Milliken Corporation photograph standards for evaluating stain
