UNCLASSIFIED AD DEFENSE DOCUMENTATION CENTER FOR SCIENTIFIC AND TECHNICAL INFORMATION CAMERON STATION. ALEXANDRIA. VIRGINIA UNCLASSIFIED

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1 UNCLASSIFIED AD DEFENSE DOCUMENTATION CENTER FOR SCIENTIFIC AND TECHNICAL INFORMATION CAMERON STATION. ALEXANDRIA. VIRGINIA UNCLASSIFIED

2 NOTICE: When government or other drawings, specifications or other data are used for any purpose other than in connection with a definitely related government procurement operation, the U. S. Government therehy incurs no responsibility, nor any obligation whatsoever; and the fact that the Government may have fomulated, furnished, or In any way supplied the said drawings, specifications, or other data is not to be regarded by implication or otherwise as in any manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use or sell any patented invention that may in any way be related thereto.

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4 Final Technical Report I October, September,963 Professor Thomas Edman Philadelphia College of Textiles and Science Development of Prosthetic Knitted Fabrics "Ccatract No. DA MD"2359 Qualified Requestors may obtain copies of this report from ASTIA.

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6 -2- TextMe Department Philadelphia College of Textiles and Science Devclcpmsnt of Prosthetic Knitted Fabrics Professor Thomas Edman 27 December, I963 Contract Number DA MD-2359 Supported by United States Amiy Medical Biochemical Research Laboratory U.S. Army Medical Research and Development Command Department of the Army Washington,D.C Summary; The purpose of this projnet was to develop and finish knitted fabric samples as directed by the staff of the U.S. Army Medical Biochemical Research Laboratory (formerly the U.S. Army Prosthetic Research Lab) for Cosmetic Gloves, Leg Cover Materials, Porous Laminates, Grafts, and other Surgical Fabrics. The fabric samples were used in plastic coating and evaluation experiments by MEDEC M.B.R.L. Method;. There is no final determination of the ultimate Synthetic vascular grafts to be used. We supplied the following prosthesis - 20 pieces'6 uuti 80 donfer poiycsicr Co rcurces per Inch 0/4 crimp tubes 20 8 mm 80 " 20 0 mm 80 " 20 2 imi 80 " 0 25 mn 40 " c 30 mm 40 " n 0/ i f " 0/4 " 0/4 " 0/4 n,0/4

7 -3-2 pieces mm. 40 den 5 " 2.5 mm 00 " teflon 5 " 2 mm 00 ii ii er polyester courses per inch 0A crimp bifurcation bleached tubes yds 2 mm 80 " polyester 50 3 mm 80 i n straight tubes I " k mm 80 n ] " 5 mm 80 II ii " 6 mm 80 II n The above fabrics were knitted on circular knitt ng machines 3/8" - U" diameter, 30 and 3 A! cut - single feed and straight rib machine 8 cut. 2 feed 20" wid-?.. 2. The development of cosmetic gloves continued for adults and children with tho following items:- 8 adults right hand 8 " left " 3 child's right " 2 " left " Ths glove is knitted on Diamont hand flat rib machine, 0 cut, cam setting 5 0,5... for 0,5 S tubular construction, using 3 ends of ko denier "S" twist poly- ester Fluflon yarn. The finished gloves are mended,scoured and tumble dried. The palm is knitted on needles in each bed for 200 rounds. SNW (Single Needle Widening) 20 x 2 on both sides. Insert marker yarn for thumb on needles 5 to 40 counting from the right for right glove. SNN (Single Needle Narrowing) 0 x 5 on both sides. Fingers: noodle arrangement ota5 rounds 80 start of narrowing Thumb: start on 36 needles of marker in each bed SNN 0 x 2 on left side only 00 rounds, start of narrowing at 86. -

8 3. The development of porous laminates included mesh flat knitted fabrics on 28 and 32 gauge 2 bar tricot tnar.hines. The si^e of the openings varied from /6" to /2". The final fabric was knitted with the following construction:- FB IO/I2/IO/I2/IO/I2/IO/I2/23/2I/23/2I/23/2I/23/2I BB 23/2I/23/2I/23/2I/23/2I/IO/! r./l 0/2/0/2/0/2 The yarn was ^0 denier polyester Fluflon, 6 inch quality. Ten yards of fabric was scoured a!;d tumble dried for further processing at MEDEC-MORL. h. A large number of assorted constructions were supplied for undesignated end uses as follows:- lb. 900 denier polyester twisting k ends kko den. 2 yds. 807 tricot fabric 20 " 704 tube 40 DF 2 CFI 0 " 706 " 80 DF 2 CPI 0 " 708 " 80 DF 2 CPI 50 " 3 " 70 DB 3 CPI