1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 0 2017 11 13 Released D. Murtonen, FNA Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 1 of 12 PERFORMANCE, SEATING FABRIC FOAM BI-LAMINATE WSS-M8P18-C1 PERFORMANCE, SEATING FABRIC FOAM TRI-LAMINATE WSS
2、-M8P18-C2 1. SCOPE These specifications define the performance requirements for interior seating trim fabrics. 2. APPLICATION These specifications were released for materials used as interior seating trim fabrics for the areas of automotive seat cushions, bolsters and inserts, and backs. WSS-M8P18-C
3、1 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 and seat builds. WSS-M8P18-C2 is defined as a tri-laminate composite with fabric/foam/backing, which includes backing examples of scrims
4、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 sources. 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
5、 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. 3.3 CONSTRUCTION In addition to the requirements listed herein, the face fabric shall meet all requirements of the applicable material sp
6、ecification. The material specification shall take precedence over the performance specification, for any requirement that differs from the performance specification. 3.3.1 Face Fabric, Back Coating, and Scrim construction must be documented in the Material specification. 3.3.2 Fabrics approved unde
7、r C1/C2 and used in other interior applications may need to meet the Applicable Performance specifications such as: Assembly Performance, Instrument Panel and Soft Interior WSS-M15P45-C/latest ENGINEERING MATERIAL SPECIFICATION WSS-M8P18-C1/C2 Copyright 2017, Ford Global Technologies, LLC Page 2 of
8、12 3.3.3 Materials for the seating application of gussets, low side facings and other non-visible areas are tested to Performance, Seating Fabric Low Visibility for B/C Surface Applications WSS-M8P31-A1/A2/latest. 3.3.4 Contact the appropriate Materials Engineering department based on Global Lead fo
9、r the Vehicle Engineering or a Regional Program for Bi or Tri-laminate composition requirements for construction package approvals. Any development that deviates from the Global Lead Region should contact the regional Materials Engineering Department. 3.3.5 For lamination requirements refer to Perfo
10、rmance Lamination for Seating and Interior Trim Specification WSS-M8P30-A1. 3.4 FABRIC TRIM FEASIBILITY Fabrics approved under this specification must pass the Interior Seating Trim Cover Feasibility Process. Refer to the Regional Core Seat Engineering Team for the Process Guidelines and Requirement
11、s. 3.5 FABRIC DEVELOPMENT CONSIDERATIONS 3.5.1 New fabric development must adhere to Stretch and Set values as stated in para. 3.12.10. Model year implementation 2022. 3.5.2 Regions with high TGWs for linting should require Soil Repellent (SR) finish, as data has shown this improves lint adhesion pe
12、rformance. 3.5.3 Using 100% Air Textured yarns can make fabrics more susceptible to linting. 3.5.4 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 specif
13、ication. 3.6 TEST PLAN 3.6.1 Unless otherwise directed by Materials Engineering, all initial evaluation and testing shall be conducted with 3 mm 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 approva
14、l test requirements. 3.7 APPEARANCE The color, 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 regi
15、onal manufacturing locations for the same pattern must match the approved Corporate Design Master sample. ENGINEERING MATERIAL SPECIFICATION WSS-M8P18-C1/C2 Copyright 2017, Ford Global Technologies, LLC Page 3 of 12 3.8 VEHICLE USAGE DEFINITIONS Testing and evaluation must comply with the following
16、vehicle call outs defined per category: Passenger Vehicles include platforms for cars, SUVs, and CUVs, such as but not exclusive to Focus, Mondeo, Fusion, Ka, Ecosport, Expedition, and Edge. Commercial, and Truck include platforms for trucks, taxi, cargo vans such as but not exclusive to F-150, Tran
17、sit, Ranger, Police and Taxi. 3.9 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 shall be sampled immediately after
18、 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, the specimens shall be tested imm
19、ediately 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, manufacturing location, date of manufactu
20、re, 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 and date of manufacture. 3.10 ODOR
21、 (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 if it is 100% bonded. If not 100% bonded, test each component separately. 3.11 FLAMMABILITY (ISO 3795, Test 5 Samples) Burn Rate 1
22、00 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. ENGINEERING MATERIAL SPECIFICATION WSS-M8P18-C1/C2 Copyright 2017, Ford Global Technologies, LLC Page 4 of 12 3.12 PHYSICAL PROPERTIES 3.12.1 W
23、eight Report in g/m2 (FLTM BN 106-01) Face Fabric must be reported without lamination Backcoating levels must be reported 3.12.2 Fabric Count Report in Yarns/10 cm (ASTM D3887) 3.12.3 Breaking Strength (ASTM D5034, Grab Method, 305 mm/minute jaw speed, average of 3 samples, each direction) 3.12.3.1
24、As Received 400 N min 3.12.3.2 Fabrics with Perforation Report Only Fabrics that have undergone a perf process are not required to meet the 400 N requirement. Materials and Seat Engineering will do an evaluation with each new perf design as to the feasibility and strength requirement for production.
25、 3.12.3.3 Breaking Strength after Resistance to Interior Weathering 350 N min. (after exposure according to para 3.13.1 at 977.6 kJ/m2, Perform Breaking Strength as stated in para 3.12.3.1) 3.12.4 Seam Strength (FLTM BN 119-01, average of 3 samples) 8 mm +/-2mm Seam Allowance 400 N min 6 mm +/-2mm S
26、eam Allowance 400 N min 3 mm +/-1mm Seam Allowance Report Only Fabrics with Perforation Report Only Fabrics that have undergone a perf process are not required to meet the 400 N requirement. Materials and Seat Engineering will do an evaluation on each perf design as to the feasibility and strength r
27、equirement for production. 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 400 N is met. ENGINEERING MATERIAL SPECIFICATION WSS-M8P18-C1/C2 Copyright 2017, Ford Global Technologies, LLC Page 5 of 12 3.12.5 Sea
28、m Deterioration 2 mm max (FLTM BN 106-02, 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. 3.12.6 Tear Stren
29、gth (Trapezoid) 100N min (ASTM D5587 Integration Method, average of 3 samples, each direction) 3.12.7 Martindale Abrasion (FLTM BN 158-01) One specimen must be run for each cycle, 10,000, 20,000, 30,000, 40,000, then additional samples must be run according to the chart below. Insert Fabrics 50,000
30、cycles Bolster Fabrics 60,000 cycles Truck and Commercial, Insert and Bolsters 100,000 cycles Samples must maintain design intent, only minimal whitening allowed, no broken threads, no pilling, pile must maintain uniformity, no holes and depth of embossments must be equal to the original design. 3.1
31、2.8 Resistance to Snagging 3.12.8.1 Mace Snagging Required for all fabrics (FLTM BN 108-11, 600 cycles min) No excessive surface snagging or pulling of individual fibers or yarns. 3.12.8.2 Taber Snagging Required only at Materials Engineering discretion (FLTM BN 108-07,1000g load/each arm, H18 wheel
32、s, 200 cycles) This test may be required based on fabric design and construction if long floats or other high risk design elements are present. No excessive surface snagging or pulling of individual fibers or yarns. 3.12.9 Resistance to Pilling (i.e. Velcro Test) (VDA 230-210 with hook tape, Aplix 8
33、00 item number 0702003, small head 38 mm, 12kPa load, 50 cycles) Available from: Test fabrics http:/ All Fabric Patterns. Run 3 samples according to the VDA Lissajous Pattern for 50 cycles. ENGINEERING MATERIAL SPECIFICATION WSS-M8P18-C1/C2 Copyright 2017, Ford Global Technologies, LLC Page 6 of 12
34、Rate as below. Passenger vehicles Min. Mark 3 Rating as per VDA (Rating 3) Truck and Commercial vehicles Min. Mark 4 Rating as per VDA (Rating 4) Additional Pilling Test with Back and Forth Pattern For Truck and Commercial Level Vehicles that have selected a two-tone fabric pattern, at the discretio
35、n of the Approving Materials Engineering Department additional pilling (Velcro) testing may be requested. This testing consists of adapting the test pattern to a back and forth motion to verify no directional pilling or yarn pull outs will occur. Run 1 sample for each fabric design direction (MD and
36、 XMD) with a back and forth testing pattern for 250 cycles. Test Set-up for Back and Forth Testing Pattern. Reposition test pattern pins on Martindale to result in a straight, back and forth testing pattern. When mounting fabric specimens, orient them on the testing stations so that the hook tape wi
37、ll be running either parallel to or perpendicular to the machine direction (MD) of the specimen being tested. Run for 250 cycles. Rate as below. Truck and Commercial vehicles Min. Mark 4 Rating as per VDA (Rating 4) 3.12.10 Stretch and Set (SAE J855, must be tested with construction approval composi
38、te according to para.3.6.1, Test warp and fill directions) Note: Balanced Stretch is not required for warp/fill relationship Flat Woven Construction Bolster Warp and Fill Direction Stretch 6% min Set 0-3% Insert Warp and Fill Direction Stretch 4% min Set 0-3% Warp Knit Construction Bolster and Inser
39、t Warp and Fill Direction Stretch 6 30% Set 0-5% ENGINEERING MATERIAL SPECIFICATION WSS-M8P18-C1/C2 Copyright 2017, Ford Global Technologies, LLC Page 7 of 12 3.12.11 Elongation Report (%) (ASTM D5034, Grab Method, Rate of 300 mm/min, Distance of grips 75mm, Average of 5 samples in both warp and fil
40、l directions) Elongate sample until a force of 50N is reached. Elongation is determined using the following equation: % Elongation = (Length (mm) at 50N) 75 mm x 100 75 mm 3.13 COLOR PROPERTIES 3.13.1 Resistance to Interior Weathering (FLTM BO 116-01, sample size 60 x 150 mm minimum, AATCC Evaluatio
41、n Procedure 1) 977.6 kJ/m2 Rating 4 min The material must not exhibit staining, color tone change, change in hue, or other deterioration after exposure. 3.13.2 Long Term Environmental Rating 4 min (FLTM BO 040-01 Procedure B, 100 +/-2C) The material must not exhibit staining, color tone change, chan
42、ge in hue, or other deterioration after 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 Liquid Repellency Coating Verification (FLTM BN 153-01, photos must be presented with package) Ra
43、ting Pass (no soak in after 30 min.) 3.13.5 Resistance to Lint Adhesion and Retention (FLTM BN 125-02) Lint Adhesion Rating 3 min Lint Retention Vacuum Rating 4 min Lint Roller Rating 4 min Report out vertical and horizontal evaluation positions as stated in FLTM. ENGINEERING MATERIAL SPECIFICATION
44、WSS-M8P18-C1/C2 Copyright 2017, Ford Global Technologies, LLC Page 8 of 12 3.13.6 Resistance to Cleaning Agents (FLTM BN 107-01) Wet and Dry Rating 4 min 3.13.7 Printed and Micro Suede Fabrics Rating 4 min (Thermal Migration and Staining AATCC Evaluation Procedure 2) Test Method: Cut 1 fabric test s
45、pecimen 65 x 80 mm. Place the test specimen over a 50 x 50 mm, AATCC Multifiber Test Fabric No. 10. Center the assembly between 65 x 80 mm or larger glass plate and load with a 455 g weight. Place in a 100 +/-20C oven for 24 h. After exposure, remove and inspect for any color transfer to the multifi
46、ber cloth. Refer to FLTM BI 109-01 Section 3.2.4 for evaluation procedure. Evaluate the specimen in daylight (D65 per ISO/CIE 23603) and rate according to the AATCC Evaluation Procedure 2. 3.14 EMBROIDERY Embroidery designs must use a reinforcement backing for stabilization. Additional abrasion test
47、ing may be required based on seat location. 3.15 ADDITIONAL REQUIREMENTS FOR UNIQUE SEATING FABRIC This includes decorative details such as electro-welding, di-electric bonding, registered embossments. At the discretion of Materials Engineering unique seating fabrics may require additional testing t
48、o verify the durability of the unique design. Manufacturing processes can lead to additional testing to prove out the feasibility. Additional requirements not included in WSS-M8P18-C1/C2/latest, will be captured within the Material Specification. 4. GENERAL INFORMATION The information given below is
49、 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 approval 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 labo
