1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 28 N-STATUS Replaced by WSS-M1F29-B, WSS-M1F28-B and WSS-M99P43-B J. Williams2007 02 26 Activated L George, AB Tollhag J WilliamsPrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 12 LEATHER, GENUIN
2、E, CHROME TANNED, SUPPLE, MILLED WSS-M1F29-A1 LEATHER, GENUINE, CHROME FREE TANNED, SUPPLE, MILLED WSS-M1F29-A2 NOT TO BE USED FOR NEW DESIGN NOT FOR USE BY FORD, NORTH AMERICA 1. SCOPE These specifications are commonised for use by Ford Motor Company, Jaguar, Land Rover and Volvo. The materials def
3、ined by this specification are finished, full grain or corrected grain, selection A steer and heifer hides for Ford of Europe/Jaguar/Land Rover. Volvo hide selection according to purchasing specification. The hides shall have been tanned to retain the natural odour of the leather and softened to pro
4、vide maximum seating comfort without sacrificing the leathers remaining physical properties. 2. APPLICATION These specifications were released originally for material used as interior trim leather, excluding instrument panel covers and steering wheels. Because the hand and appearance characteristics
5、 will be adversely affected, the leather shall not be subjected to steam or radiant heat or organic solvents during any manufacturing process except as specified below. Corrected grain leather shall be snuffed using one pass of 320 grit paper. The method of correction shall be agreed with Purchasing
6、 and Materials and Body Engineering. 3. REQUIREMENTS For all test methods, no individual specimen shall fall below the minimum values specified herein. Material specification requirements are to be used for initial qualification of materials. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Materi
7、al suppliers and part producers must conform to the Companys Standard Requirements For Production materials (WSS-M99P1111-A). 3.2 SAMPLE SELECTION (ASTM D 2813) Test samples to be taken from specified areas of the hide. 3.3 APPEARANCE (FLTM BI 109-01) The color, grain, visual aesthetics, hand and fi
8、nish shall match the approved Design Centre master sample, or shall be as specified on the Engineering Drawing. ENGINEERING MATERIAL SPECIFICATIONWSS-M1F29-AA1/2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 12 3.4 GRADE The leather must be through dyed to p
9、revent undyed fibers from showing through after sewing or perforation. Also, the colour of the dye must be compatible in appearance with the surface coating. No stucco permitted. 3.5 FINISH All hides shall show no paint defects or surface blemishes affecting the appearance of the material, such as b
10、rush marks or stops and bad flows. 3.6 THICKNESS, mm, range (ASTM D 1813) For specific thickness values refer to the relevant Engineering Drawing. 3.7 BREAKING STRENGTH, min (ASTM D 2209) Any direction 125N 3.8 ELONGATION at break 30 - 70% (ASTM D 2211) 3.9 ELONGATION AT 100N LOAD 15 - 40% (ASTM D 2
11、209) 3.10 ADDITIONAL REQUIREMENTS FOR PERFORATED LEATHER 3.10.1 Breaking Strength To be agreed for each (ASTM D 2209) perforated quality 3.10.2 Tear Strength To be agreed for each (ASTM D 5733) perforated quality 3.10.3 Resistance to Fibre Show Through None Visible All perforated leather/parts may b
12、e skived, perforated and flesh sealed to meet this requirement. Test Method: The test shall be conducted on a 305 mm x 305 mm area of original 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
13、nozzle and maximum pressure setting (100% Vacuum using Taber Test Vacuum), ensuring that there is sufficient air flow through the perforations. The material shall be judged a failure if there is fiber show through to the surface. ENGINEERING MATERIAL SPECIFICATIONWSS-M1F29-AA1/2 Printed copies are u
14、ncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 12 3.11 TEAR STRENGTH, min (ASTM D 5733) Any direction 70 N For perforated leather Value to be reported as a percentage loss from the original value 3.12 COLOUR PROPERTIES General Acceptance Criteria: The material shall not exhibit
15、any change in appearance, such as colour, 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, flaking, chipping, checking, chalking, cracking, splits, sinks, bulges, peeling, tackiness
16、 or delamination. 3.12.1 Resistance to Fade (WSS-M1F29-A1) (SAE J1885, 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 2.5 mm mandrel. 3.12.2 Resistance to Fade (WSS-M1F29-A2)
17、 (Volvo Std 1027, 359/ISO 105-A02/ AATCC Evaluation Procedure 1) 400 hours Rating 4 In addition, the material must remain flexible and exhibit no cracking when bent around a 2.5 mm mandrel. 3.12.3 Resistance to Heat Aging, min (7 days at 90 +/- 2 C, ISO 105-A02/ AATCC Evaluation Procedure 1) Rating
18、4 - 5 The heat-aged sample shall not exhibit colour tone change in excess of the above rating or excessive gloss change greater than the sample originally approved by Materials Engineering. ENGINEERING MATERIAL SPECIFICATIONWSS-M1F29-AA1/2 Printed copies are uncontrolled Copyright 2010, Ford Global
19、Technologies, LLC Page 4 of 12 3.12.4 Resistance to Humidity, min (ISO 105-A02/AATCC Evaluation Procedure 1) WSS-M1F29-A1: 7days/70 +/- 2 C/95 +/-5% RH Rating 4 - 5 WSS-M1F29-A2: (1000 HRS/38 +/- 2 C/95+/- 5% RH) Rating 4 - 5 Samples to be suspended vertically in the No tone/gloss change Test cabine
20、t) from master sample. 3.12.4.1 Mould and Fungus Growth No visible fungal or After testing against 3.12.4 mould growth 3.12.5 Soiling and Cleanability, min (FLTM BN 112-08, ISO 105-A02/ AATCC Evaluation Procedure 2) In addition soil with: Coca Cola Classic, 10 ml After Cleaning, min Rating 4 3.12.6
21、Soiling and Cleanability, min (Volvo Std 85000120, ISO 105-A02/ AATCC Evaluation Procedure 2) After cleaning Rating 4 - 5 3.12.7 Resistance to Cleaning Agents, max discoloration Rating 4 - 5 (FLTM BN 107-01, 10 cycles) Test Procedure: Substitute the leather for the textile material. Saturate white c
22、otton cloth with the cleaners listed. Evaluation according to the AATCC Evaluation Procedure 2. Cleaners (see also para 5.1) 1) Approved Brand Window Cleaner 2) Approved Brand All Purpose Cleaner 3) Isopropyl Alcohol/Deionised Water 50% v/v 4) Approved Brand Leather Cleaner 5) Soap/water solution- 2
23、% teepol L, 0.1% EDTA(Ethylene DiAmine Tetra acetic acid Di sodium salt) in distilled water ENGINEERING MATERIAL SPECIFICATIONWSS-M1F29-AA1/2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 12 3.12.8 Resistance to Contact and Migration Staining Rating 5 (FLTM
24、BN 103-01) After test, the specimens and the accessory test materials must not show any surface deterioration, change in colour tone (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
25、 injurious exudation, adhesion (tackiness), separation or colour transfer when placed face to face with itself and the standard vinyl test material. Evaluation according to the AATCC Evaluation Procedure 2. 3.12.9 Rub Resistance, min Rating 4 (ISO 11640, 1998) Dry 2000 cycles Wet 250 cycles Evaluati
26、on according to the AATCC Evaluation Procedure 1. 3.12.10 Perspiration Staining, (ISO 11640/EN ISO 105-E04) Use both acid and alkaline perspiration solutions. 3.12.10.1 Sample as received, 100 cycles Rating 4 3.12.10.2 Sample after Fade Resistance Acc. Para 3.12.1: 225.6kJ/m2 100 cyclesRating 4 Acc.
27、 Para 3.12.2: 400 hours 100 cycles Rating 4 3.12.10.3 Sample after heat ageing Acc. Para 3.12.3: 7 days at 90 C +/- 2 C, 100 cycles Rating 4 3.12.10.4 Sample after humidity ageing Acc. Para 3.12.4: WSS-M1F29-A1: 7days/70 +/- 2 C/95+/- 5% RH 100 cycles Rating 4 WSS-M1F29-A2: 1000h/38 +/- 2 C/95 +/- 5
28、%RH 100 cycles Rating 4 Evaluation according to the AATCC Evaluation Procedure 2. 3.12.11 Resistance to Dye Transfer, min Rating 4 after cleaning (FLTM BN 112-11/AATCC Evaluation Procedure 2) ENGINEERING MATERIAL SPECIFICATIONWSS-M1F29-AA1/2 Printed copies are uncontrolled Copyright 2010, Ford Globa
29、l Technologies, LLC Page 6 of 12 3.13 MATERIAL EMISSIONS IN COMPARTMENT AIR 3.13.1 Fogging Samples shall be predried by storing in a dessicator over phosphorous pentoxide or silica gel or equivalent for a minimum period of 7 days. For leather batch production: Predrying to be agreed on the certified
30、 Control Plan. 3.13.1.1 Method A: Photometric Procedure (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 h) Fog Number, min 70 If the fog number is less than 70, the material is rejected. If the fog number is greater than 70, but oily droplets, crystals or a clear wet
31、film is present, then the sample must be retested by gravimetric method as per paragraph 3.13.1.2. 3.13.1.2 Method B: Gravimetric Procedure (for type and validation testing) (SAE J1756, 16 h at 100 C heating, 21 C cooling plate, post test conditioning, 4 h) Weight of Condensate, max 4 mg 3.13.2 Odou
32、r, max (FLTM BO 131-03/VDA 270) Rating 3 Sample size: 3 x (90mm x 200mm) A strong natural leather odour may be acceptable as defined by the individual brand. 3.13.3 Total Emissions of Organic Carbon Compounds, max 100g/g (VDA 277) 3.13.4 Formaldehyde Content, max 10mg/kg dry material (VDA 275) Testi
33、ng to be performed by an approved accredited laboratory 3.13.3 and 3.13.4 shall be tested by a designated test facility, see Appendix I. 3.14 COLD FLEXIBILITY, min -30 C (SAE J323, Method A) The material must remain flexible and after bending around a 2.5mm mandrel, it must exhibit no cracks. ENGINE
34、ERING MATERIAL SPECIFICATIONWSS-M1F29-AA1/2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 7 of 12 3.15 FLEX REQUIREMENTS Selection of 3.15.1 or 3.15.2 to be advised by the individual Materials Engineering Group. 3.15.1 W Flex Requirements (FLTM BN 102-02) No crac
35、king of the surface finish when viewed with a minimum 6X microscope. Sample As Received 100,000 cycles Acc. Para 3.12.1: 225.6kJ/m2 30,000 cycles Acc. Para 3.12.2: 400 hours, 30,000 cycles After heat ageing (acc, 3.12.3.) 30,000 cycles After humidity ageing (acc. 3.12.4) 30,000 cycles (samples shall
36、 be suspended vertically in the test chamber) 3.15.2 Bally Flex (ASTM D 6182) No cracking of the surface finish when viewed with a minimum 6X microscope. Sample as received 100,000 cycles Acc. Para 3.12.1: 225.6kJ/m230,000 cycles Acc. Para 3.12.2: 400 hours 30,000 cycles After Heat Ageing (acc, 3.12
37、.3.) 30,000 cycles After Humidity Ageing (acc.3.12.4) 30,000 cycles (samples shall be suspended vertically in the test chamber) 3.16 WEAR RESISTANCE TESTING 3.16.1 WWS-M1F29-A1 Simulated Seat Wear No wear through the (FMVSS 209, S5.1(d), 10,000 cycles, finish to russet except replace the hexagonal s
38、teel rod with a 40 mm dia. round steel rod covered with 2 mm thick rubber sheet, 80 +/- 5 Shore A and abrade with No 8 cotton duck) Product Validation Only 3.16.2 WSS-M1F29-A1 Taber Abrasion No wear through the (SAE J948, Specimen Holder E140-15, finish to russet CS10 Wheels, 1000g load, 4000 cycles
39、. Wheels to be refaced every 2000cycles.) ENGINEERING MATERIAL SPECIFICATIONWSS-M1F29-AA1/2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 8 of 12 3.16.3 WSS-M1F29-A2 Taber Abrasion No wear through the (SAE J948, Specimen Holder E140-15, finish to russet CS10 Whee
40、ls, 500g load, 2000 cycles. 3.16.4 Resistance to Scuffing 200 cycles (SAE J365, Scuff head A, Specimen Holder E140-15) The materials colour in the scuffed area shall be compatible with the adjacent unscuffed areas. No breaking of the finish is permitted. The resistance to scuffing of production mate
41、rial shall be equal to or better than that exhibited by the master sample approved for production by the Materials Engineering Activity. 3.17 SHRINKAGE, max 5.0% (FLTM BN 105-03, except Heat Cycle 100 +/-2 C, 3 cycles) 3.18 FLAMMABILITY (ISO 3795/SAE J369) Testing to meet the requirements of FMVSS 3
42、02 Burn Rate, max 80mm/minute 3.19 LEATHER FUNCTIONAL PROPERTIES Following approval of leather to the specification, final approval shall be subject to satisfactory production and service trials. Ingress, egress testing is required for all seating applications. Leather wear and process capability te
43、sts are required for all seating 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, l
44、eather perforation, foam hardness, etc. on the predicted level of customer satisfaction and long term durability. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 4.1 STIFFNESS (FLTM BN 157-02) WSS-M1
45、F29-A1 60 +/- 20. WSS-M1F29-A2 50 +/- 20 4.2 AMINE STAINING, max Rating 4 - 5 (FLTM BN 112-10/AATCC Evaluation Procedure 1) Heat ageing: 24 hours at 90 +/- 2 C. ENGINEERING MATERIAL SPECIFICATIONWSS-M1F29-AA1/2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 9 of 1
46、2 4.3 ADHESION OF SURFACE COATING max (ISO 11644/IUF470) As received 4N/10mm After humidity, para 3.12.4 4N/10mm 4.4 RESISTANCE TO SEAM WEAR No wear through the (FLTM BN 108-14, 5 minutes, 89N load) finish to russet Applicable to double sewn seams and piping 4.5 SEAM FATIGUE RESISTANCE (FLTM BN 106-
47、02, average of 3 samples, any direction) Needle hole elongation after test, max 1 mm ENGINEERING MATERIAL SPECIFICATIONWSS-M1F29-AA1/2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 10 of 12 APPENDIX I Approved external test houses for vehicle interior emissions:
48、Interior emissions consist of the following parameters: - Organic emissions (VOC) - Formaldehyde emission The following standards must be used for testing: - VDA 275 for formaldehyde - VDA 277 for organic emissions and hazardous substances. Approved institutes United Kingdom BLC Leather Technology C
49、entre Ltd Leather Trade House Kings Park Road Moulton Park Northampton NN3 6JD United Kingdom Tel: + 44 (0) 1604 679 999 Fax: + 44 (0) 1604 679 998 Contact Person: Karen Short (mailto:) SATRA Quality Assurance Wyndham Way Telford Way Ind Est Kettering NN16 8SD United Kingdom Tel: + 44 (0) 1536 410000 Fax: +44 (0) 1536 410626 Contact Person: John Hubbard (mailto:johnhsatra.co.uk ) Approved for formaldehyde emission acc. to VDA 275, organic emission (TVOC) acc. to VDA 277 Last review: Germany TV Nord, Postfach 540220,
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