1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 00 2016 02 29 Released D. Murtonen, FNA Controlled document at www.MATS Copyright 2016 Ford Global Technologies, LLC Page 1 of 4 PERFORMANCE, SEWING THREAD WSS-M8P25-C PERFORMANCE, SEWING THREAD, DRY, SHIFT BOOT WSS-M8P25-D 1. SCOPE This
2、 specification defines the performance requirements for sewing threads used in functional and decorative purposes for interior trim vehicle components. 2. APPLICATION This specification was released originally for material used in sewing operations in the manufacture of interior trim vehicle compone
3、nts. Table 1 indicates recommended usage per thread size (Tex/Metric-M) and fiber content. Other applications not listed in this table will be considered after evaluation by Materials Engineering based on the proposed use. Nylon is the recommended fiber content. Certain regions (for example China) m
4、ay require the use of polyester due to fiber availability. Polyester thread will be required for areas of high UV exposure such as Instrument Panels (IPs) for decorative stitching. WSS-M8P25-C contains the typical lubricant on the thread as selected by the thread supplier. WSS-M8P25-D is produced dr
5、y to aid in the shift boot component level testing for liquid penetration. 3. REQUIREMENTS Threads to be used in the application of serging and embroidery for floor mats must meet WSS-M8P22-A, Performance, Floor Mat, Serge and Embroidery Thread. In addition, specific material specification WSB-M15H6
6、4-A/latest will need to be met based on application use. 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List (ASL) can be used when this specification is listed on the drawing, CAD file, or other documents. The li
7、st of approved sources is located within Ford at or available externally through a Ford Materials Engineer. 3.2 APPEARANCE The color, pattern, and finish shall match the approved Corporate Design master sample 3.3 BALANCE Take a one meter length of sewing thread drawn freely from the side of the sp
8、ool (without undue tension and without passing it through any restriction such as fingers, etc.) and bring the thread together to form a free hanging loop. In this position, the thread must not twist upon itself more than twice. 3.4 NUMBER OF KNOTS The thread spool shall be free from all imperfectio
9、ns of such character which would cause the thread to break during sewing. ENGINEERING MATERIAL SPECIFICATION Copyright 2016, Ford Global Technologies, LLC Page 2 of 4 3.5 IDENTIFICATION Each spool of thread must bear the name of the manufacturer, color suffix, and yarn size. 3.6 PACKING The material
10、 must be packed in such a way that no slippage of the thread layers or any other damage occurs during transit. 3.7 CONSTRUCTION PROPERTIES All properties must be tested per each color package submitted, per each Tex/Metric-MTable 1 indicates performance requirements per Thread Type Designation for T
11、hread Size (Tex or Metric-M and Fiber and common applications for each Thread type. 3.7.1 Tensile Strength See Table 1 (ISO 2062, Method A, B or C) 3.7.2 Tensile Strength after Aging (ISO 2062, Method A, B or C) 3.7.2.1 After Heat Age 70%of original data (7 days at 100 +/-2 C, AATCC Evaluation Proce
12、dure 1) 3.7.2.2 After Ultraviolet Report Only (FLTM BO 116-01, 225.6 kJ/m2) 3.7.3 Elongation See Table 1 (ISO 2062, Method A, B or C) 3.7.4 Resistance to Fade Rating 4 min (FLTM BO 116-01, ISO 105 A-02/ AATCC Evaluation Procedure 1) All Applications (excluding IP Polyester Thread) 225.6 kJ/m2 IP Dec
13、orative Polyester Thread 451.2 kJ/m2 3.7.5 Heat Aging Rating 4 min (7 days at 90 +/- 2 C, AATCC Evaluation Procedure 1) 3.7.6 Resistance to Crocking (FLTM BN 107-01, AATCC Evaluation Procedure 2) Dry Rating 4 min Wet Rating 4 min ENGINEERING MATERIAL SPECIFICATION Copyright 2016, Ford Global Technol
14、ogies, LLC Page 3 of 4 3.8 FUNCTIONAL SEWING TEST After the thread has been tested per the requirements stated above, it shall be assessed by a sewing test conducted under normal production conditions. The thread must process under production conditions without any reservations and meet the sewn sea
15、m requirements of the cover material specifications. Suppliers deliveries can be rejected because of excessive rates of breakage and/or other manufacturing difficulties (knots, foreign matter, etc.). In addition, after sewing, the thread shall not exhibit objectionable streaks or any change in hue o
16、r purity of color, or transfer residue. 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. Drawing call-outs shall state Thread Type
17、Designation and Size. Examples would be: WSS-M8P25-A/N90, WSS-M8P25-A/Tex 90/Nylon or WSS-M8P25-A/M30/Nylon Refer to Table 1 for Thread Type Designations. N90= Nylon, Tex90/M30. 4.1 Purchase departments will ensure that the material defined in this specification and shipped to any one assembly plant
18、 will be produced by one supplier only. In the event of a Global Program or Regional duplication, each regional location of the supplier for this specification must provide a construction package and be approved to meet this specification. 4.2 APPROVAL OF MATERIALS Suppliers desiring approval of the
19、ir 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, demonstrating fu
20、ll 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 Analysis, Con
21、trol Plans, Certification testing) with Ford. 4.3 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 changes affect t
22、he 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 Approval, SR
23、EA. For parts and components using Ford Engineering Material Specifications, all samples tested to the specifications for Design Verification (DV), Production Verification (PV) and Producation Part Approval Process (PPAP) sign off must be kept until Job 1. 4.4 RESTRICTED SUBSTANCE MANAGEMENT STANDAR
24、D 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-A/latest which is updated yearly. It is the suppliers responsibility to comply with t
25、his standard on a continuing basis. ENGINEERING MATERIAL SPECIFICATION Copyright 2016, Ford Global Technologies, LLC Page 4 of 4 Table 1 Guideline (but not all inclusive) for Thread Applications for Functional and Decorative Usage All properties must be tested per each color package submitted, per T
26、ex/M. Thread Type Designation N30 N70 N90 N135 N150 N210 Texture Code for Color and Materials NNNA NNNB NNNC NNND NNNE NNNF Fiber Nylon Nylon Nylon Nylon Nylon Nylon Thread Size Tex 30 M80 Tex 70 M40 Tex 90 M30 Tex 135 M20 Tex 150 M18 Tex 210 M13 Typical Application Air Bag for Seating, Embroidery,
27、IP-Join Seam Air Bag for Seating, IP-Join Seam Seating- Join Seam & Decorative Seating, IP-Join Seam Seating- Decorative Steering Wheel, Gear Knob, Shift Boot Seat Belt Steering Wheel, Gear Knob, Shift Boot Property/Test Method Unit Requirement Requirement Requirement Requirement Requirement Require
28、ment Tensile Strength ISO 2062 Method A, B or C cN, min. 1800 4400 5400 9000 9500 13500 Elongation minimum % 16% 12% 12% 12% 12% 12% Thread Type Designation P30 P70 P90 P135 P150 P210 Fiber Polyester Polyester Polyester Polyester Polyester Polyester Texture Code for Color and Materials PPPA PPPB PPP
29、C PPPD PPPE PPPF Thread Size Tex 30 M80 Tex 70 M40 Tex 90 M30 Tex 135 M20 Tex 150 M18 Tex 210 M13 Typical Application Embroidery (Regional Only, Not FNA) No application at this time IP Decorative (Global) IP-Decorative (Global) No application at this time IP-Decorative (Global) Property/Test Method Unit Requirement Requirement Requirement Requirement Requirement Requirement Tensile Strength ISO 2062 Method A, B or C cN, min. 1700 3700 5400 7500 8300 9000 Elongation minimum % 10% 10% 10% 11% 11% 11%
