1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2017 10 27 Released D. Murtonen FNA Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 1 of 6 PERFORMANCE, SEATING FABRIC LOW VISIBILTY WSS-M8P31-A1 FOR B/C SURFACE APPLICATIONS BI-LAMINATE PERFORMANCE,
2、SEATING FABRIC LOW VISIBILITY WSS-M8P31-A2 FOR B/C SURFACE APPLICATIONS TRI-LAMINATE 1. SCOPE This specification defines the performance requirements for interior seating trim fabrics for B/C surface applications only. 2. APPLICATION This specification was released for materials used as interior sea
3、ting trim fabrics for the areas of gussets, bite line, low side facings and any areas that are non-visible to the customer. WSS-M8P31-A1 is defined as a bi-laminate composite with fabric/foam, which could include PE (polyethylene) film added to foam backing for the manufacturing process of sewing an
4、d seat builds. WSS-M8P31-A2 is defined as a tri-laminate composite with fabric/foam/backing, which includes backing examples of scrims such as warp or circular knits, or non-woven materials. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification is performance based and does not have approved sourc
5、es. 3.2 CONDITIONING AND TEST CONDITIONS All test values are based on material conditioned for not less than 24 h prior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% relative humidity. Testing of the material should occur in the conditioning environment or soon after removal. 3.
6、3 CONSTRUCTION In addition to the requirements listed herein, the face fabric shall meet all requirements of the applicable material specification. The material specification shall take precedence over the performance specification, for any requirement that differs from the performance specification
7、. 3.3.1 Face Fabric, Back Coating, and Scrim construction shall be documented in the Material specification. 3.3.2 Contact the appropriate Materials Engineering department based on Global Lead for the Vehicle Engineering or a Regional Program for Bi or Tri-laminate composition requirements for const
8、ruction package approvals. Any development that deviates away from Global Lead Region should contact the regional Materials Engineering. ENGINEERING MATERIAL SPECIFICATION WSS-M8P31-A1/A2 Copyright 2017, Ford Global Technologies, LLC 3.3.3 For lamination requirements refer to Performance Lamination
9、for Seating and Interior Trim Specification WSS-M8P30-A1. 3.3.4 Composition Percent (ASTM D629) The yarn composition and fiber blend of material supplied to this specification shall correspond in quality and ratio to that specified in the individual material specification. 3.4 TEST PLAN Unless other
10、wise directed by Materials Engineering, all initial evaluation and testing shall be conducted with 3mm nominal thickness at 25-29 Kg/m3 (1.7lb/ft3), 35-45 ILD with nominal 40, from an approved Ford foam source. See Table 1, for construction and color approval test requirements. 3.5 APPEARANCE The co
11、lor, pattern, hand and face construction shall match the approved Corporate Design Master sample. No modifications are allowed once the Master Sample is developed and MCDCCs are signed without notifying Color and Materials and Materials Engineering. All regional manufacturing locations for the same
12、pattern must match the approved Corporate Design Master sample. 3.6 FOGGING (PHOTOMETRIC) (SAE J1756, 3 h at 100 C heating, 21 C Cooling plate, post testing conditioning 16 h) Fog Number 70 min Formation of clear film, droplets or crystals is cause for rejection For shipping, all materials or parts
13、shall be sampled immediately after manufacture, then bagged in a zipper- or slide-sealed polyethylene (PE) bag, PE-coated aluminum bag or wrapped in aluminum foil prior to bagging. Test specimens shall be cut, then stored in a clean, open environment for 14-28 days. After 14-28 days of air exposure,
14、 the specimens shall be tested immediately or re-bagged until testing can be performed. Bagged materials or parts must be labelled on the outside of the bag with the following information, and included in the test report: supplier, contact information, product code/trade name or part number, manufac
15、turing location, date of manufacture, shipping date, start and end dates of conditioning period and test date. Sample shall be tested as part of a production assembly composite if it is 100% bonded. If not 100% bonded, test each component separately. Parts for testing must be labelled with supplier
16、and date of manufacture. ENGINEERING MATERIAL SPECIFICATION WSS-M8P31-A1/A2 Copyright 2017, Ford Global Technologies, LLC 3.7 ODOR (FLTM BO 131-03, Variant C) Condition 1 Rating 3 max Condition 2 Rating 3 max Condition 3 Rating 3 max Sample shall be tested as part of a production assembly composite
17、if it is 100% bonded. If not 100% bonded, test each component separately. 3.8 FLAMMABILITY (ISO 3795, Test 5 Samples) Burn Rate 100 mm/minute max Sample shall be tested as part of a production assembly composite if it is 100% bonded. If not 100% bonded, test each component separately. 3.9 PHYSICAL P
18、ROPERTIES 3.9.1 Weight Report in g/m2 (FLTM BN 106-01) Face Fabric must be reported without lamination Backcoating levels must be reported 3.9.2 Fabric Count Report in Yarns/10cm (ASTM D 3887) 3.9.3 Breaking Strength (ASTM D5034, Grab Method, 305mm/minute jaw speed, average of 3 samples, each direct
19、ion) 3.9.3.1 As Received 300 N Min. 3.9.3.2 Breaking Strength after 200 N Min. Resistance to Interior Weathering (after exposure according to para 3.13.1 at 601.6 kJ/m2, Perform Breaking Strength as stated in para 3.9.3) 3.9.4 Seam Strength (FLTM BN 119-01, average of 3 samples) 8mm +/-2mm Seam Allo
20、wance 300 N Min. 6mm +/-2mm Seam Allowance 300 N Min. Fabric breakage may occur at the grips only. No fabric tear may appear near the seam, or indicate yarn pull out from the seam, even if the 300 N is met. ENGINEERING MATERIAL SPECIFICATION WSS-M8P31-A1/A2 Copyright 2017, Ford Global Technologies,
21、LLC 3.10 SEAM DETERIORATION 2 mm max (FLTM BN 106-03, 3 sample on each direction) No “running” permitted from needle hole and no yarn “pull out”. No distortion of design intent and/or no significant separation of Warp and/or Weft yarns. No significant “grin through” of underlying foam allowed. 3.11
22、TEAR STRENGTH (TRAPEZOID) 70N min (ASTM D5587 Integration Method, average of 3 samples, each direction) 3.12 MARTINDALE ABRASION (FLTM BN 158-01) One specimen must be run for each cycle, 10,000, 20,000, 30,000, 40,000, and 50,000. Samples must maintain design intent, only minimal whitening allowed,
23、no broken threads, no pilling, pile must maintain uniformity, no holes and depth of embossments must be equal to the original design. 3.13 COLOR PROPERTIES 3.13.1 Resistance to Interior Weathering (FLTM BO 116-01, sample size 60 x 150 mm minimum, AATCC Evaluation Procedure 1) 601.6 kJ/m2 Rating 4 mi
24、n The material must not exhibit staining, color tone change, change in hue, or other deterioration after exposure. 3.13.2 Long Term Environment Rating 4 min (FLTM BO 040-01 Procedure B, 100 +/-2 C) The material must not exhibit staining, color tone change, change in hue, or other deterioration after
25、 exposure. 3.13.3 Soiling and Cleanability (FLTM BN 112-08, AATCC Evaluation Procedure 2) Standard Soil Rating 4 min Grease Rating 4 min Coffee Rating 4 min 3.13.4 Resistance to Cleaning Agents (FLTM BN 107-01) Wet and Dry Rating 4 min ENGINEERING MATERIAL SPECIFICATION WSS-M8P31-A1/A2 Copyright 201
26、7, Ford Global Technologies, LLC 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 APPROVAL OF MATERIALS Suppliers desiring appr
27、oval of their materials shall first obtain an expression of interest from Purchasing, Design or Product Development, and Materials Engineering. The supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, demon
28、strating full compliance with all the requirements of the Material Specification. Tested material samples must be available for review upon request and kept for a minimum of one year. Upon request, the supplier will review the associated quality control documents (Process Failure Mode and Effects An
29、alysis, Control Plans, Certification testing) with Ford. 4.2 SUPPLIERS ONGOING RESPONSIBILITY All materials must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved, whether or not such chang
30、es affect the materials ability to meet the specification requirements, the supplier shall notify the affected Supplier Technical Assistance (STA), Purchasing, and Materials Engineering activities of the proposed changes (with reasons) by submission of a completed Suppliers Request for Engineering A
31、pproval, SREA. For parts and components using Ford Engineering Material Specifications, all samples tested to the specifications for Design Verification (DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off must be kept until Job 1. 4.3 RESTRICTED SUBSTANCE MANAGEME
32、NT STANDARD Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in the Restricted Substance Management Standard WSS-M99P9999-A1 which is updated yearly. It is the suppliers responsibility to comply wi
33、th this standard on a continuing basis through IMDS and or GMAP reporting. 5. SUMMARY OF REVISIONS ENGINEERING MATERIAL SPECIFICATION WSS-M8P31-A1/A2 Copyright 2017, Ford Global Technologies, LLC TABLE 1 TESTING REQUIREMENTS Para /Test # of Samples Level 2 Testing (also for Regional Manu. Location)
34、Color Approval Program Timing Full Construction Approval. This testing correlates with Material Specification Development. Any changes after Level 2 testing to the Fabric needs to be discussed with Materials Engineering. MCDCC level testing. Sign-off after Level 2 is completed and material specifica
35、tion number is created. 3.6 Fogging 3 X 3.7 Odor 3 X 3.8 Flammability 5 (MD & XMD) X X 3.9.1 Weight 3 Report Lowest X 3.9.2 Fabric Count 5 (MD & XMD) X 3.9.3.1 Breaking Strength As Received Avg of 3 (MD & XMD) X 3.9.3.2 Breaking Strength after Resistance to Interior Weathering Avg of 3 (MD & XMD) X
36、3.9.4 Seam Strength 8mm 6mm 3 per each mm (MD & XMD) X 3.10 Seam Deterioration 3 per (MD & XMD) X 3.11 Tear Strength 3 per (MD & XMD X 3.12 Martindale Abrasion 1 for each 10,000 cycles X 3.13.1 Resistance to Interior Weathering 1 X Only if Color is developed to within 5% of final formulation X 3.13.2 Long Term Environment 1 X Only if Color is developed to within 5% of final formulation X 3.13.3 Soiling and Cleanability 1 per agent X X 3.13.4 Resistance to Cleaning Agents 1 per agent X X
