1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 28 N-STATUS Replaced by WSS-M1F29-B, WSS-M1F28-B and WSS-M99P43-B J. Williams 2005 02 21 Revised WSS-M1F17-F2 inactivated and removed from specification, replaced by WSS-M1F24-A2 and WSS-M1F26-A L. Soreide1993 09 07 Released NB00I10043
2、054283 A J Stock, J Williams Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 6 LEATHER, GENUINE, SUPPLE, MILLED WSB-M1F17-B NOT TO BE USED FOR NEW DESIGN LEATHER, GENUINE, STANDARD WEAR, MILLED WSS-M1F17-C LEATHER, GENUINE, STANDARD WEAR, MILLED WSS-M1F17-D TR
3、I-CROSSLINKED FINISH NOT TO BE USED FOR NEW DESIGN LEATHER, GENUINE, HIGH WEAR, MILLED WSS-M1F17-E NOT TO BE USED FOR NEW DESIGN LEATHER, GENUINE, SOFT HAND, MILLED WSS-M1F17-F NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are finished, full grain, selection “A
4、“, steer hides which have been tanned to retain the natural odor of the leather and softened to provide maximum seating comfort without sacrificing the leathers remaining physical properties. 2. APPLICATION These specifications were released originally for material used as interior trim leather. Per
5、forated leather must also meet requirements of para 3.24. Because the hand and appearance characteristics will be adversely affected, the leather shall not be subjected to steam heat or organic solvents during any manufacturing process except as specified below. WSB-M1F17-B was released originally f
6、or applications where a lower stiffness interior trim leather is desired. WSS-M1F17-C was released originally for standard wear seat and interior trim applications. WSS-M1F17-D was released originally for molded seat applications formed under heat and pressure. It has improved resistance to blisteri
7、ng when formed with heat, pressure and organic solvents. The use of heat pressure and organic solvents adversely affects the hand and appearance of the leather. For this reason, Materials and Design Engineering must approve processing conditions used for this material prior to its use in a productio
8、n application. WSS-M1F17-E was released originally for high wear seat applications where a high wing sport seat bolsters where improved wear resistance is required. WSS-M1F17-F was released originally for luxury seat applications where a softer hand is desired. 3. REQUIREMENTS 3.0 STANDARD REQUIREME
9、NTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). ENGINEERING MATERIAL SPECIFICATIONWSB-M1F17-B WSS-M1F17-C/D/E/FPrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LL
10、C Page 2 of 6 3.4 SAMPLE SELECTION Samples for testing shall be selected no closer than 80 mm from edge of the hide. 3.5 APPEARANCE (FLTM BI 109-01) The color, grain, visual aesthetics, hand and finish shall match the approved Design Center master sample, or shall be as specified on the engineering
11、drawing. 3.6 GRADE Full top grain dyed leather, not buffed. The leather must be through dyed to a sufficient depth to prevent undyed fibers from showing through after sewing. Also, the color of the dye must be compatible in appearance with the surface coating. 3.7 FINISH All hides shall show no defe
12、cts or surface blemishes affecting the appearance of the material, such as brush marks or stops and bad flows. 3.8 THICKNESS, mm, range 0.80 - 1.30 (ASTM D 1813) 3.9 BREAKING STRENGTH, min (ASTM D 2208) Any direction 400 N 3.10 ELONGATION at 400 N, max 60% (ASTM D 2208) 3.11 TEAR STRENGTH (Trapezoid
13、), min (ASTM D 5733, Integration Method*) Any direction 44 N *As approved by Materials Engineering. 3.12 SEAM FATIGUE RESISTANCE (FLTM BN 106-02, average of 3 samples, any direction) Needle hole elongation after test, max 3 mm ENGINEERING MATERIAL SPECIFICATIONWSB-M1F17-B WSS-M1F17-C/D/E/FPrinted co
14、pies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 6 3.13 STIFFNESS, max (ASTM D 747, direct reading at 60 angle with 0.01 N-m moment weight on a 0.7 N-m Tinius Olsen stiffness tester) Direct Scale Reading B C D E F Any direction, max . Shallow or smooth grain 15 20 20 20
15、15 . Deep grain 20 25 25 30 20 Test Method: Samples shall be randomly selected (any direction) from a 0.37 m2min area. The test specimen shall be 50 x 25 mm with 25 mm of the 50 mm dimension clamped in jaw; 13 mm span from clamp to bending plate. Conduct tests on 4 samples with uncoated side up and
16、4 samples with uncoated side down. Record the average results obtained from the 8 scale readings (4 up, 4 down). Production material shall be similar in hand, when mutually judged by the material supplier and the product manufacturer, as material originally approved by the Materials Engineering Acti
17、vity. 3.14 COLOR PROPERTIES 3.14.1 Resistance to Fade (SAE J 1885, ISO 105-A02/ AATCC Evaluation Procedure 1) 225.6 kJ/m2Rating 4 488.8 kJ/m2Rating 3 In addition, the material must remain flexible and exhibit no cracking when bent around a 6.4 mm mandrel. 3.14.2 Resistance to Heat Aging, min Rating
18、4 (7 days at 100 +/- 2 C, ISO 105-A02/ AATCC Evaluation Procedure 1) The heat aged sample shall not exhibit color tone change in excess of the above rating. 3.14.3 Soiling and Cleanability, min (FLTM BN 112-08, ISO 105-A02/ AATCC Evaluation Procedure 1) After Cleaning, min Rating 3 ENGINEERING MATER
19、IAL SPECIFICATIONWSB-M1F17-B WSS-M1F17-C/D/E/FPrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 6 3.14.4 Resistance to Cleaning Agents, Rating 4 max discoloration (FLTM BN 107-01, 10 cycles) Test Procedure: Substitute the leather for the textile material. Satura
20、te white cotton cloth with the cleaners listed. Evaluation according to the AATCC Evaluation Procedure 3 (Chromatic Transference Scale). Cleaners (see also para 5.1) 1) Window cleaner with ammonia 2) All Purpose Cleaner 3) Isopropyl Alcohol/Water 50% v/v (5 cycles, Rating 3) 3.14.5 Crocking Test Wet
21、/Dry: Rating 4 (FLTM BN 107-01) Evaluation according to the AATCC Evaluation Procedure 3 (Chromatic Transference Scale). 3.14.6 Resistance to Migration Staining (FLTM BN 103-01) After test, the specimens and the accessory test materials must not show any surface deterioration, change in color tone (
22、hue), or any other defects and they must be equal to or better than the sample originally approved by Materials Engineering. In addition there shall be no evidence of injurious exudation, adhesion (tackiness), separation or color transfer when placed face to face with itself and the standard vinyl t
23、est material. 3.15 FOGGING 3.15.1 Method A: Photometric Procedure (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 h) Fog Number, min 60 Formation of clear film, droplets or crystals is cause for rejection. If oily droplets, crystals or clear film are present and the f
24、og number is greater than 60, sample must be retested per para 3.15.2. If the fog number is less than 60, the material is rejected. 3.15.2 Method B: Gravimetric Procedure (SAE J1756, 16 h at 100 C heating, 21 C cooling plate, post test conditioning, 4 h) Weight of Condensate, max 5 mg ENGINEERING MA
25、TERIAL SPECIFICATIONWSB-M1F17-B WSS-M1F17-C/D/E/FPrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 6 3.16 COLD FLEXIBILITY, min -35 C (SAE J 323, Method A) The material must remain flexible and after bending at 180, it must exhibit no cracks. 3.17 “W“ FLEX REQUI
26、REMENTS, min (FLTM BN 102-02) Fine cracks through the finish coating are acceptable, provided there is no evidence of finish peeling or roll back visible without the use of magnification. . After aging 225 kJ/m2(SAE J 1885) 30,000 cycles . After aging 7 days at 100 +/- 2 C 30,000 cycles 3.18 SEAT BE
27、LT ABRASION No wear through the (FMVSS 209, S5.1(d), 10,000 cycles, finish to russet except replace the hexagonal steel rod with a 40 mm diameter. round steel rod covered with 2 mm thick rubber sheet, 80 +/- 5 Shore A and abrade with No 8 cotton duck) 3.19 RESISTANCE TO PILLING WEAR No wear through
28、the (FLTM BN 108-14, 5 minutes) finish to russet WSS-M1F17-B, C, D, F 89 N Load WSS-M1F17-E 111 N Load 3.20 RESISTANCE TO SCUFFING 200 cycles (SAE J 365, Specimen Holder E140-15) The materials color in the scuffed area shall be compatible with the adjacent unscuffed areas. The resistance to scuffing
29、 of production material shall be equal to or better than that exhibited by the master sample approved for production by the Materials Engineering Activity. 3.21 ODOR, max Rating 2 (FLTM BO 131-01) 3.22 SHRINKAGE, max. 5.0% (FLTM BN 105-03, except Heat Cycle 100 +/-2 C, 3 cycles) 3.23 FLAMMABILITY (I
30、SO 3795/SAE J369) Burn Rate, max 100 mm/minute ENGINEERING MATERIAL SPECIFICATIONWSB-M1F17-B WSS-M1F17-C/D/E/FPrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 6 of 6 3.24 LEATHER FUNCTIONAL PROPERTIES Leather wear and process capability tests are required for all se
31、ating applications. In addition, other trim applications may require unique functional evaluations. These tests should be evaluated by a cross-functional team prior to color and trim strategy approval to assess the effects of the leather selection, seat style, sew style, foam firmness, etc. on the p
32、redicted level of customer satisfaction and long term durability. 3.25 ADDITIONAL REQUIREMENTS FOR PERFORATED LEATHER Resistance to Fiber Show Through None Visible Test Method: The test shall be conducted on a 305 mm x 305 mm area of original perforated leather seating surface. With moderate pressur
33、e, vacuum the entire surface for 1 minute using the vacuum cleaner specified in SAE J948 with 28 mm nozzle and maximum pressure setting. The material shall be judged a failure if there is fiber show through to the surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specification. 5.1 CLEANING AGENTS (See para 3.12.4) 1) Window cleaner with ammonia E4AZ-19C507-AA* 2) All Purpose Cleaner E0AZ-19526-AA* or E8AZ-19623-AA* 3) Isopropyl Alcohol/Water 50% v/v *or Ford Motor Company Recommended Equivalents
