1、This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. AUGUST 2016 Page 1 of 4 NAVISTAR, INC. Material, Parts, and Process Specifications
2、 (MPAPS) NUMBER: MPAPS D-7005 Former Designation: TMS-7005 TITLE: Thread, Nylon Or Dacron CURRENT REV No.: 1608 DATE: Aug. 2016 WRITTEN/EDITED BY: D. Baker APPROVED BY: R. Goluch SUPERSEDES: Rev. H Aug. 2005 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may
3、 involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicability of regulatory limits prior to use. 1
4、.0 APPLICATION This specification covers two types of bonded, twisted cord thread: nylon and dacron. These two types of thread, available in two sizes (92 and 138), are both suitable for sewing seat covering materials and other fabrics. Selection of the type of thread is based upon availability and
5、other economic considerations, whereas selection of thread size is based upon the strength requirements and appearance of the seam, as well as economic considerations. 2.0 SCOPE This specification covers general requirements, property and performance requirements, quality, identification, inspection
6、 tests, source approval and quality control. 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the MPAPS B-50 specification 3.0 REFERENCE DOCUMENTS Unless otherwise specified, the latest i
7、ssue of all referenced standards shall apply. The following standards, specifications and regulations are referenced in this specification. Quality System Standard ISO 9001 or TS-16949 ASTM D 204 CFR Title 29, Part 1910 NAVISTAR MPAPS P-9544 NAVISTAR Supplier Packing and Shipping Std. D-13 FMVSS 302
8、 NAVISTAR Engineering Design Std. A-16 NAVISTAR MPAPS GT-31 NAVISTAR MPAPS B-50 4.0 GENERAL REQUIREMENTS 4.1 Material Nylon Yarn - The thread shall be made from DuPont Type 331 nylon or equivalent. The raw material shall be a pre-stretched high tenacity Nylon 66 of bright luster, finished into a thr
9、ee or four cord (depending upon size) twisted thread that shall comply with the requirements of this specification. The NUMBER: MPAPS D-7005 TITLE: Thread, Nylon Or Dacron REVISION: 1608 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corp
10、orate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. AUGUST 2016 Page 2 of 4 bonding agent shall cause no excessive wiriness, flaking or color change at the needle or otherwise interfere with a satisfactory sewing operation. 4.2 Dacron Yarn - The t
11、hread shall be made from three or four plies (depending upon size) of high tenacity Dacron, Type 51 (or equivalent) bright filaments, twisted into a uniform thread that shall comply with the requirements of this specification. 4.3 Color The color shall be as specified and shall match the color and s
12、heen of standard approved fabric masters in the TDTC Industrial Design Department. 4.4 Characteristics 4.4.1 Twist Test Method: ASTM D-204 4.4.1.1 Required Unless otherwise specified, the threads shall be twisted in the left hand or Z direction such that when the thread is held vertically, the spira
13、ls shall incline in the same direction as the center portion of the letter Z. Nylon threads shall have 2.3-4.3 turns per cm (6-11 turns per in) and Dacron thread shall have 2.9-4.3 turns per cm (7.5-11 turns per in). Put Up: 450 or 900 g (1 or 2 lbm) per tube. 4.4.2 Yarn Size: 92* 138* Nylon 97-115
14、Tex.* 150-170 Tex. Dacron 104-114 Tex. 163-177 Tex. * A four ply cord. * A three ply cord. * Tex. - A unit for expressing linear density, equal to the mass in grams of one kilometer of yarn. 4.4.3 Weight: Nylon Dacron 92 138 92 138 m/kg, minimum 8675 5850 8870 5750 yd/lbm, minimum 4300 2900 4400 285
15、0 4.5 Property And Performance Requirements 4.5.1 Tensile Strength 4.5.1.1 Method To be performed on a constant rate of traverse type tensile machine with specimen clamps of the smooth drum type not less than 13 mm (1/2 in) diameter. The distance between the bite of the clamps at the start of the te
16、sts shall be 254 mm (10 in). Strands of the thread, cut from consecutive positions on the spool, shall be tested individually. The test shall be conducted with the pulling clamp moving at a uniform speed of 305 13 mm per minute (12 1/2 in per minute). If any strand breaks within 13 mm (1/2 in) of th
17、e clamps, that result shall be discarded. The average of the results of 10 satisfactory tests from at least five tubes shall be reported. NUMBER: MPAPS D-7005 TITLE: Thread, Nylon Or Dacron REVISION: 1608 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without pe
18、rmission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. AUGUST 2016 Page 3 of 4 4.5.1.2 Required 92 138 Nylon 5.3 N (12 lbf) 8 N (18 lbf) Dacron 5.3 N (12 lbf) 6.7 N (15 lbf) 4.6 Elongation 4.6.1 Method The elongation shall be determ
19、ined simultaneously with the tensile strength by means of an automatic recording device attached to the tensile machine. The average of the results of 10 satisfactory tests shall be reported. 4.6.2 Required Nylon 13-27% Dacron 8-20% 4.7 Bonding and Finishing Agents (Nylon Only) 4.7.1 Method Cut a sp
20、ecimen of the thread weighing approximately 5 grams. Dry four hours at 100C (212F) and obtain dry weight. Extract four hours in a Soxhlet Extraction Unit with ethyl alcohol. Dry four hours at 100C (212F). Reweigh. Calculate percent bonding and finishing agents extracted based on dry weight. 4.7.2 Re
21、quired 3-15% Total. 4.8 Accelerated Weathering per MPAPS GT-31, Method A The material shall fade no more than the standard approved production samples per DRD in the Plant Inspection Department or Industrial Design. 4.9 Sewing Tests After the samples have been tested for physical requirements, they
22、shall be subjected to a sewing machine test on a regular production run. The samples shall sew without excessive breakage when compared to the average amount of breakage based on experience for the particular size, quality and operation. A shipment may be rejected because of excessive breakage. 4.10
23、 Flammability Resistance (See Note) Material and parts supplied to this specification shall conform to and be certified by the supplier to meet the requirements of the latest issue of the Federal Motor Vehicle Safety Standard #302 - Flammability of Interior Materials, and the requirements of MPAPS P
24、-9544. Note: Specimen Preparation for Flammability Requirement The specimen shall be completely saturated with wet steam at 77-93C (170-200F) followed by hang drying in a convection oven for 16 hours at 82C (180F), followed by the conditioning as specified by the Federal Motor Vehicle Safety Standar
25、d #302. 5.0 QUALITY The thread shall contain no tied knots and shall be free from imperfections that would cause the thread to break in sewing. NUMBER: MPAPS D-7005 TITLE: Thread, Nylon Or Dacron REVISION: 1608 This document is restricted and may not be sent outside Navistar, Inc. or reproduced with
26、out permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. AUGUST 2016 Page 4 of 4 5.1 Inspection Tests Tests for color and tensile strength shall be performed by the trim fabricator at intervals sufficient to insure adherence to
27、the requirements of this specification. 6.0 SOURCE APPROVAL AND QUALITY CONTROL 6.1 Supplier Requirements All suppliers to NAVISTAR are required to be registered to QS-9000 Quality System Requirements. NAVISTAR will also accept ISO 9000 or TS-16949 registration as long as the supplier can also fulfi
28、ll all AIAG PPAP (Production Part Approval Process) documentation and approval requirements. Suppliers must maintain their certification with an accredited registrar and must furnish copies of registration certificates to the NAVISTAR Corporate Buyer upon request. 6.2 Approval Parts supplied against
29、 contracts or purchase orders citing this specification shall be equivalent in all respects to those samples which were approved by the purchaser. No changes in formulation or processing practices are permitted without approval. In the event that changes in material, properties, processing practices
30、, construction, color, or labeling of the product are required, the supplier shall notify Materials Engineering, Purchasing and Supplier Development of the proposed change(s). Test data indicating conformance to all requirements of this specification, test samples, and new or amended or updated Mate
31、rial Safety Data Sheet(s) (MSDS), in accordance with CFR Title 29, Part 1910 shall be submitted with the request for change. 6.3 Process Control The supplier shall either perform and report results of tests on specific lots of parts produced or provide statistical evidence of the lot having been pro
32、duced in a state of statistical control and with a process capable of providing all required properties. The part supplier and the plant metallurgist and/or the quality control manager of the using International plant may determine testing and reporting requirements on specific products. 7.0 SHIPPIN
33、G, PACKING AND IDENTIFICATION 7.1 Identification Each tube, and cartons containing tubes, shall bear the name, initial, monogram or trademark of the manufacturer; also, the color and the size of thread. In addition, cartons shall show the net weight per carton. 8.0 DESIGNATION ON DRAWINGS The drawin
34、g shall specify the size (138 or 92) and any other characteristics such as color which might not be specified herein. All drawings specifying only MPAPS D-7005 shall be the heavier (138) size thread. 9.0 APPROVED SOURCE American and Efird Thread Mills, Inc. Threads Incorporated NUMBER: MPAPS D-7005
35、TITLE: Thread, Nylon Or Dacron REVISION: 1608 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. AUGUST 2016 Page 5 of 4 10.0 TECHNIC
36、AL INFORMATION For further information related to the technical content of this specification, contact: Suppliers may purchase controlled copies of this specification by contacting: Materials Engineering and Technology Dept. 10400 W. North Avenue Melrose Park, IL 60160 E-mail: MaterialsEngineeringN IHS Global Inc. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/ REVISION HISTORY Revision Level Change Approved by Date Approved 1606 Converted to MPAPS R. Goluch 8/5/2016
