1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 1 2015 02 27 N Status Replaced by WSS-M99P43-D L. Schmalz, NA 2013 10 09 Released L. Schmalz, NA Controlled document at www.MATS Copyright 2015, Ford Global Technologies, LLC Page 1 of 12 PERFORMANCE, GENUINE LEATHER WSS-M99P43-C NOT TO
2、BE USED FOR NEW DESIGN 1. SCOPE This specification defines the performance requirements for interior trim and seating leather. 2. APPLICATION This specification was released to outline the performance of interior trim and seating leather, the requirements are applicable to chrome or chrome free tann
3、ed leather. 2.1 LIMITATIONS Do not use this specification for steering wheel, gearshift or handbrake leather. (See WSS-M1F21-C/latest or WSS-M1F22-C/latest) and instrument panel (WSS-M15P45-B/latest) applications. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers
4、and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). Materials used in interior applications must meet the requirements outlined in WSS-M99P2222-D1 or latest, Performance, Vehicle Interior Environment Quality Material/Component Requirements
5、. Data must be included in the material submission package. The leather shall not be subjected to steam or radiant heat or organic solvents during any manufacturing process because the hand and appearance characteristics will be adversely affected. No buffing, stuccoing, filling or other repair is p
6、ermitted unless otherwise stated on individual Material Specifications. Perforated leather must also meet requirements for Fully Perforated Leather, achieved by using a sealer known as flesh coating, to bind any loose fibers and to ensure flesh side fibers will not be visible through perforation hol
7、es on the A surface. Note: All leather is expected to meet these requirements except when noted in the individual WSS-M1FXXX range of material specifications For all test methods, no individual specimen shall fall below the minimum values specified. 3.2 CONTROL ITEMS Control Items must be run per Ta
8、ble 1 for the initial approval. Test specimens must be taken equally from the areas described in Figures 1 and 2 for Control Items. The Construction approval package must contain the Initial Approval Control Items and the rest of the specification and be submitted to Materials Engineering. These res
9、ults must also be submitted to Materials Engineering and Seat Engineering before Ingress/Egress testing (ST-0035) is approved. Control Items must be tested on every lot (production load) of material; control of these items must be represented in the PFMEA and control plan. These results must be read
10、ily available and submitted to Seat Engineering upon request. After the review and sign-off of the control documents (PFMEA, CP and ENGINEERING MATERIAL SPECIFICATION WSS-M99P43-C Copyright 2015, Ford Global Technologies, LLC Page 2 of 12 Statistical data) for a significant number of lots, the frequ
11、ency of the testing can be reduced as agreed upon by the Materials Engineering and Seat Engineering representatives. The location of the test samples is described in ISO 2418 or ASTM D2813 for physical testing of leather samples. Figure 1 and Figure 2 below show where the samples shall be taken from
12、 the given number of hides in the Control Item Sampling Plan, Table 1. Table 1: Control Item Sampling Plan Test Initial Construction Approval Production Bally Flex or W-Flex as received 5 hides 1 hide Bally Flex or W-Flex heat aged acc.3.5.1.3 5 hides 1 hide Bally Flex or W Flex as received followed
13、 by Finish Adhesion 5 hides 1 hide Pilling Wear 5 hides 1 hide Simulated Seat Wear 5 hides 1 hide Resistance to Fade 1 hide Stiffness: As specified in the individual Material Specification 5 hides 5 locations 1 hide 5 locations Thickness: As specified in the individual Material Specification 5 hides
14、 5 locations 1 hide 5 locations ENGINEERING MATERIAL SPECIFICATION WSS-M99P43-C Copyright 2015, Ford Global Technologies, LLC Page 3 of 12 Backbone testing: Figure 1 represents a hide with the head removed. B is the root of the tail. A is a point on the backbone such that AC = 2AB. AD is a line perp
15、endicular to BC. F is the mid-point of AD and AE is of a length 50 mm. The lines GH and JK, whose mid-points are E and F respectively, are parallel to BC and each of equal length to EF. Test samples for Stiffness and Softness properties must be taken from area similar to HKJG, along both sides of th
16、e back bone. Test samples for physical properties shall be taken both from the backbone and belly areas. If not enough samples can be taken to complete all of the testing then additional hides must be used. Figure 1. ENGINEERING MATERIAL SPECIFICATION WSS-M99P43-C Copyright 2015, Ford Global Technol
17、ogies, LLC Page 4 of 12 Belly testing: Figure 2 test samples must be taken between the edge of the hide and line US. The size is to be adjusted to fit the appropriate test specimen. Figure 2. 3.3 APPEARANCE (FLTM BI 109-01) The color, pattern, and finish shall match the approved Corporate Design mas
18、ter sample, or shall be as specified on the Engineering Drawing. 3.3.1 Instrumental Color Readings (SAE J1767) Instrumental color readings may be required at the discretion of Materials Engineering. Visual evaluation will take precedence over instrumental readings in cases of dispute. Acceptable ins
19、trumental tolerance from Corporate Design master sample shall be established between leather supplier and tier one supplier and documented in the control plan. 3.4 SAMPLE SELECTION Samples for testing shall be selected from the backbone and belly area of the hide. The backbone area is described in F
20、igure 1. Samples from the belly area should be taken 100 mm from the edge of the hide. Sample locations must be noted on the test matrix. Untested areas of the hide must be submitted so that the hide can be reconstructed to view where the samples were taken. Sample size requirements are listed in Ta
21、ble 2. Test 5 samples from backbone and belly except for paragraph 3.9 Color Properties or where the test method determines the sample size. ENGINEERING MATERIAL SPECIFICATION WSS-M99P43-C Copyright 2015, Ford Global Technologies, LLC Page 5 of 12 3.5 FOGGING Method A: Photometric Procedure (SAE J17
22、56, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 h) 3.5.1 Fog Number 70 min If oily droplets, crystals or clear film are present and the fog number is greater than 70, sample must be retested per para 3.5.2. If the fog number is less than 70, the material is rejected. 3.5.2 Me
23、thod B: Gravimetric Procedure (SAE J1756, 16 h at 100 C heating, 21 C cooling plate, post test conditioning, 4 h) Weight of Condensate 4.0 mg max Samples shall be predried by storing in a desiccator over silica gel or equivalent for a period of 2 days. 3.6 ODOR Rating 3 max (FLTM BO 131-03) 3.7 FLAM
24、MABILITY (ISO 3795/SAE J369) Burn Rate 100mm/minute max 3.8 CONSTRUCTION PROPERTIES 3.8.1 Cold Flexibility -30 C or below (SAE J323, Method A) The material must remain flexible and after bending at 180 it must not exhibit cracks. 3.8.2 Resistance to Flexing (Bally Flex or “W” Flex) Evaluation Requir
25、ement: No cracking of the surface finish with a 6X microscope when the sample is bent over a 12 +/- 2 mm mandrel in the direction of the test area. The following tests must be completed in addition to those required in the Control Items, para. 3.2. 3.8.2.1 Bally Flex (FLTM BN 162-01) Original 100,00
26、0 cycles Test to failure (cracking) Report number of cycles to nearest 10,000 After Heat Aging per 3.9.2 30,000 cycles After Humidity Aging per 3.9.3 30,000 cycles ENGINEERING MATERIAL SPECIFICATION WSS-M99P43-C Copyright 2015, Ford Global Technologies, LLC Page 6 of 12 3.8.2.2 “W“ Flex Requirements
27、 (FLTM BN 102-02) Original 100,000 cycles Test to failure (cracking) Report number of cycles to nearest 10,000 After Fade per 3.9.1 30,000 cycles After Heat Aging 3.9.2 30,000 cycles After Humidity Aging per 3.9.3 30,000 cycles 3.8.3 Finish Adhesion after Bally Flex/W Flex 3.5 N min (100,000 cycles
28、of FLTM BN 162-01 / FLTM BN 102-02 followed by ISO 11644, Adhesive: Cyanoacrylate- Sicomet 8400, Supplier: Henkel, or equivalent. Condition bonded test specimens for 1 hour min.) 3.8.4 Breaking Strength 400 N min (ASTM D2208, Grab Method, Any direction) 3.8.5 Elongation at 100 N 40% max (ASTM D2211,
29、 Grab Method) 3.8.6 Tear Strength (Trapezoid) 70 N min (ASTM D5587) 3.8.7 Seam Fatigue Resistance (FLTM BN 106-02) Needle hole elongation after test 2 mm max 3.8.8 Resistance to Scuffing. 200 cycles, min. (SAE J365, Scuff head A) No breakthrough or cracking of coating. No permanent parallel deformat
30、ion to the surface, no break of the finish. Color change must be reviewed and approved by the responsible Materials Engineer. 3.8.9 Simulated Seat Wear 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 dia. round steel rod c
31、overed with 2 mm thick rubber sheet, and abrade with No 8 cotton duck, 60 cycles/min, 250 mm stroke length). 3.8.10 Resistance to Pilling Wear 5 minutes and (FLTM BN 108-14, 89 N Load) report time to wear through to the russet ENGINEERING MATERIAL SPECIFICATION WSS-M99P43-C Copyright 2015, Ford Glob
32、al Technologies, LLC Page 7 of 12 3.9 COLOR PROPERTIES The material shall not exhibit any change in appearance such as color change, tone change, fading or gloss change in excess of the required AATCC rating. In addition, the material shall not exhibit staining, blistering, loss of coating adhesion,
33、 flaking, chipping, checking, chalking, cracking, splits, sinks, bulges, peeling, tackiness or delaminating. 3.9.1 Resistance to Fade (FLTM BO 116-01, ISO 105-A02/ AATCC Evaluation Procedure 1) 977.6 kJ/m2 Rating 4, min In addition, the material must remain flexible and exhibit no cracking when bent
34、 around a 6.4 mm mandrel. 3.9.2 Resistance to Heat Aging Rating 4, min (7 days at 100 +/- 2 C, ISO 105-A02/AATCC Evaluation Procedure 1) After exposure, the material shall no evidence of excessive loss of grain or exhibit staining, color tone change, or change in hue in excess of required AATCC rati
35、ng (See Note). Any “spotty” or non-uniform staining or discoloration shall be cause for rejection. Note: If rating is less than 4, then the material must be subjected to xenon arc weathering to determine if the observed color change is temporary or permanent. Evaluation must meet the requirement for
36、 3.9.2.1. 3.9.2.1 Visual Evaluation after Heat Aging and Xenon Arc Rating 4-5, min (FLTM BO 116-01, 75.2 kJ/m2 ISO 105-A02/AATCC Evaluation Procedure 1) After exposure, the material shall show no evidence of excessive loss of grain or exhibit staining, color tone change, or change in hue in excess o
37、f required AATCC rating. Any “spotty” or non-uniform staining or discoloration shall be cause for rejection. 3.9.3 Resistance to Humidity (ISO 105-A02/AATCC Evaluation Procedure 1) 3.9.3.1 Chrome Tanned (7 days at 70 +/- 2 C and 95 +/-5% RH) Rating 4, min 3.9.3.2 Chrome Free Tanned 7 days at 70 +/-
38、2 C and 70 +/-5% RH Rating 4, min There shall be no tone or gloss change or any loss of grain definition. Samples to be suspended vertically in the test cabinet 3.9.4 Mold and Fungus Growth No visible fungal or Mold growth The material shall exhibit no visual evidence of mildew growth and/or objecti
39、onable odor after 7 days exposure in a humidity cabinet at 38 +/- 2 C and 98 +/- 2% relative humidity. ENGINEERING MATERIAL SPECIFICATION WSS-M99P43-C Copyright 2015, Ford Global Technologies, LLC Page 8 of 12 3.9.5 Soiling and Cleanability Rating 4, min (FLTM BN 112-08, ISO 105-A03/ AATCC Evaluatio
40、n Procedure 2) Standard Soil, Grease, and Coffee 3.9.6 Resistance to Dye Transfer (ISO 26082, Exceptions: Use Pilling Head, Test Fabric: Empa 128, ISO 105-A03/AATCC Evaluation Procedure 2. 12 kPa load,1000 cycles) Clean the leather surface manually using white cotton cloths moistened with the Approv
41、ed Brand Leather Cleaner from FLTM BN 112-08. Change cloth frequently until no color transfer is visible on the cloth. After cleaning and 30 minutes drying at room temperature Rating 4, min After cleaning and 24 hours drying at room temperature Rating 4, min *EFFECTIVE 2017 MY leather must meet the
42、following requirement for Dye Transfer: Resistance to Dye Transfer (ISO 26082, Exceptions: Use Pilling Head, Test Fabric: Empa 277 wet*, ISO 105-A03/AATCC Evaluation Procedure 2. 12 kPa load,1000 cycles) Stain before cleaning Rating 4, min After cleaning and 30 minutes drying at room temperature Rat
43、ing 4-5, min After cleaning and 24 hours drying at room temperature Rating 4-5, min *Soak denim with DI water until thoroughly saturated then gently wring out to prevent dripping. 3.9.7 Crocking Test (FLTM BN 107-01, ISO 105-A03/AATCC Evaluation Procedure 2) Dry Rating 4, min Wet Rating 4, min 3.9.8
44、 Resistance to Cleaning Agents, Rating 4, max (FLTM BN 107-01, 10 cycles, ISO 105-A03/AATCC Evaluation Procedure 2) Test Procedure: Substitute the leather for the textile material. Saturate white cotton cloth with the cleaners listed. Cleaners 1) Approved Brand Window Cleaner 2) Approved Brand All P
45、urpose Cleaner 3) Isopropyl Alcohol/Deionised Water 50% v/v 4) Leather Cleaner from FLTM BN 112-08 5) Soap/water solution- 2% Teepol L Detergent, 0.1% EDTA (Ethylene DiAmineTetra acetic acid Di sodium salt) in deionised water ENGINEERING MATERIAL SPECIFICATION WSS-M99P43-C Copyright 2015, Ford Globa
46、l Technologies, LLC Page 9 of 12 3.9.9 Resistance to Migration Staining (FLTM BN 103-01) No evidence of injurious exudation, adhesion (tackiness) separation or color transfer when placed face to face with itself and the standard vinyl. 3.9.10 Resistance to Color Stain Transfer Rating 4, min (ASTM D6
47、012, ISO 105-A03/AATCC Evaluation Procedure 2 ) 3.10 FULLY PERFORATED LEATHER All perforated leather shall meet the full leather specification before perforation. All perforated leather/parts to be skived, flesh sealed and perforated. 3.10.1 Resistance to Fiber Show Through None Visible Test Method:
48、 The test shall be conducted on a 305 mm x 305 mm area of original fully perforated leather seating surface. With moderate pressure, vacuum the entire surface for 1 minute using the vacuum cleaner specified in SAE J948 with 28 mm nozzle and maximum suction setting. The material shall be judged a fai
49、lure if there is fiber show through to the surface. 3.10.2 Reduction in Breaking Strength after Perforation Nominally10% of (ASTM D2208) the original value. To be agreed for each perforation design 3.10.3 Reduction in Tear Strength after Perforation Nominally 10% of (ASTM D5587) the original value. To be agreed for each perforation design. 3.10.4 Resistance to Scuffing No topcoat removed (SAE J365, Scuff Head A, from edges of the 200 cycles) perforated area 4. GENERAL INFORMATION The information given
