1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 5 2016 02 29 N Status Replaced by WSS-M8P25-C/D D. Murtonen, NA 2014 09 16 Editorial Revised Table 1 applications D. Murtonen, FNA 2013 10 25 Released D. Murtonen, FNA Controlled document at www.MATS Copyright 2016, Ford Global Technolog
2、ies, LLC Page 1 of 4 PERFORMANCE, SEWING THREAD WSS-M8P25-A PERFORMANCE, SEWING THREAD, DRY, SHIFT BOOT WSS-M8P25-B NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the performance requirements for sewing threads, and dry sewing threads for shift boot application. 2. APPLICATION Thi
3、s specification was released originally for material used in sewing operations in the manufacture of interior trim vehicle components. Table 1 indicates recommended usage per thread size (Tex/Metric-M) and fiber content. Thread usage per Tex/M and fiber content should be evaluated based on applicati
4、on. Nylon is the recommended fiber content. Certain regions (for example China) may require the use of polyester due to fiber availability. Polyester thread may be required for areas of high UV exposure such as Instrument Panels (IPs). WSS-M8P25-A has the typical lubricant on the thread. WSS-M8P25-B
5、 is produced dry 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 specific
6、ations, WSS-M15H66-A, and WSB-M15H64-A will need to be met based on application use. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements for Production Materials (WSS-M99P1111-A). 3.2 APPEARANCE (FLTM BI 109-01)
7、The color, pattern, and finish shall match the approved Design Center master sample or shall be as specified on the engineering drawing. 3.3 BALANCE Take a one meter length of sewing thread drawn freely from the side of the spool (without undue tension and without passing it through any restriction
8、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. ENGINEERING MATERIAL SPECIFICATION WSS-M8P25-A/B Copyright 2016, Ford Global Technologies, LLC Page 2 of 4 3.4 NUMBER OF KNOTS The thread spool s
9、hall be free from all imperfections of such character which would cause the thread to break during sewing. 3.5 IDENTIFICATION Each spool of thread must bear the name of the manufacturer, color suffix, and yarn size. 3.6 PACKING The material must be packed in such a way that no slippage of the thread
10、 layers or any other damage occurs during transit. 3.7 CONSTRUCTION PROPERTIES All properties must be tested per each color package submitted. Table 1 indicates performance requirements per Thread Type Designation for Thread Size (Tex or Metric-M and Fiber and common applications for each Thread typ
11、e. 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 min. (7 days at 100 +/-2 C, AATCC Evaluation Procedure 1) 3.7.2.2 After Ultraviolet 70% of original min. (FLTM BO 116-01,150.4 kJ/
12、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, 150.4 kJ/m2 Thread Used for Embroidery and IP Applications, 451.2 kJ/m2 3.7.5 Heat Aging Rating 4 min (7 days at 90 +/- 2
13、 oC, 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 WSS-M8P25-A/B Copyright 2016, Ford Global Technologies, LLC Page 3 of 4 3.8 FUNCTIONAL SEWING TEST After the thread has
14、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 seam requirements of the cover material specifications. Suppliers deliveri
15、es 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 or purity of color. 4. GENERAL INFORMATION The information given below i
16、s 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 Designation and Size. For example: WSS-M8P25-A/N90 Refer to Table 1 for Thread Type Designat
17、ions. N90= Nylon, Tex90/M30. 5. SUMMARY OF REVISIONS 2014 09 16 Editorial Revised application descriptions. Nylon category- Added IP Join Seam for Tex 90/M30. Removed Decorative for Tex 150/M18 and Tex 210/M13. Polyester category- Added Tex 30/M80 Regional only, Tex 90/M30, IP Join Seam, Tex 135/M20
18、 and Tex 210/M13 IP Decorative. Removed Tex 30/80 Side Air Bag, Tex 70/40 all applications, Tex 150/M18 all applications. 2014 06 04 Editorial Added usage per Tex/M and fiber content to Application section. Added the following typical applications to Table 1: Tex 70 Nylon Side Air Bag, Tex 90 Nylon
19、and Polyester IPs and Tex 135 Polyester Decorative for IPs. Removed Side Air Bag applications for Polyester Tex 30 and Tex 70. 2014 01 29 Editorial. Removed reference to WSB-M15H61-A in requirements section. 2013 12 03 Released B suffix for shift boots for dry thread use. ENGINEERING MATERIAL SPECIF
20、ICATION Copyright 2014, Ford Global Technologies, LLC Page 4 of 4 Table 1. *All properties must be tested per each color package submitted. 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
21、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 Air Bag for Seating Seating- Join Seam & Decorative IP-Join Seam Seating- Decorative Steering Wheel, Gear Knob, Shift Boot Seat Belt Steering Wheel, Gear Knob, Shift B
22、oot Property/Test Method Unit Requirement Requirement Requirement Requirement Requirement Requirement 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 Pol
23、yester Polyester Polyester Polyester Polyester Texture Code for Color and Materials PPPA PPPB PPPC 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) No application at this time Seating and IP Join Seam (Not
24、FNA or FOE) IP-Decorative (Global) Steering Wheel, Gear Knob, Shift Boot (Not FNA or FOE No application at this time IP-Decorative (Global) Steering Wheel, Gear Knob, Shift Boot (Not FNA or FOE) 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%
