Document Mo0MZMYjLNEKe7mL7LY1bndkM

ABORATORYR 00 EM WORK REQUEST NO. (J-63 ~Jb IS FOR CUSTOMUSE ONLY. IT. OR AMY PART OF IT. IS NOT TO BE DISCLOSED OUTSIDE YOUR FIRM WITHOUT PRIOR WRITTEN CONSENT OF DU PONT, DATE November 14, 1974 DISTRIBUTION B. W, Stewart, Pigm. ,C.R./.File H. W. Ling, Figm. C.R. j. R. Webster, Pigan C.R. E. R. Everingham, Pigm C.R. L. A. Schlapfer, Pigas. C.R. 8= E E&elman, Plgm. C.R. W. Si Struve, Pigs. Newark ; * R. H. Wetzel, Plgm. Newport D. J. Spinozzi, Pig, Princeton-MA J. M. Loughney, Pigs. Princeton-MA J. M. Lipton, Plgm. Wilet. R. I1., Harding, Pi@a. Wiim. C. F. Rolls, Pigm. Nil. J Mc^uilken, Pigm. Wilm. \ J. Jackscn, Pim Newark4__ _ SUBJECT MOMSTRAI^ BLUE G, BT-473-D Uf SSMOST'S PUBLICATION GRAV&RE 3M TO DETERMINE FLOCCULATION RESISTANCE BmiODt'CTIOK: Inmost is interested in reducing their formulating costs by using a less expensive pigment. As a result, they are looking at BT-473-D as a replacement for Bl'-4l7~K. BT-473-B is a less'expensive pigment tban BT-417-P {about 15$ less expensive) end offers satisfactory tinctorial properties, lomont ` s only concern is whether BP-473-i> has adequate flocculatim resistance. We ran Ihmont'.s flocculation test of BT-473- end compared it against BB?-<4'17-D . B2?-97- and BT-476-B were also tested to check their flocculation 1 resistance. *> * y,. . CONCLUSION AND REXIOMMENDATXON: 'y BT-473-D does not flocculate in Xnmont*3 test. very slight flocculation by the test. BT-417-D shows a We recommend BT-473-D as a replacement for BT-4l?-D on the basis of slightly better flocculation resistance, comparable strength and tinctorial properties, and better value in use. SraMAKTs BT-297-P and BT-473~D do not flocculate by the test, .Bl~4?6-D ' flocculates severely by the test and BT-4l7-I> shows slight flocculation. LAB WORK BY: W. R. Mendenhall [/ SIGNED T------------------- ---------D 1... CHANDLER/lb ///, Moveriber Ik, 197k 2 - - FIRST 8; F1HAL 0-63-74 DlSOUSSIOi-I: v Fresh-inks 'ball milled a`b 15# pigjnent are let down to 30 pignent using Xsmont*? varnish for flocculation tests. We lave heard from Sinclair Valentine that using other solvents to let down- can influence flocculation. We did not encounter this problem because we used Imeonf's varnish for let dovm purposes. . Flocculation test: Tints of fresh and oven-aged idles were compared for strengths. A loss of strength indicates flocculation occurred during the accelerated aging period. (See at^ched sheet for aging times.) An equal match indicates no flocculation. SMWi&jTAh DmihS: Flgiaent-s tested Monastral Blue GF* BT-417-B Monastral Blue G-, BS-^73*- Monastral Blue G, BT-S97--B Moisestiral Blue G> BT-A76-B Xmk preparation See attached sheet for ink preparation. REPBREHCE: ILF-39-74 DUP050109385 Hovember Ik, 197b- -3:w k p r b p a r a t :(o i'I Fresh Inks _ Ball milled lime Flocculation. Test ^ Fresh inks reduced using Xmuont's varnish to: Aged in oven Temperature Tint Preparation Tint base Aged ink Tint base Red Devil shaker (mixer) , Tint Base Preparation (R-900) R-900 Farnish (Total. Pebble milled Container Porox balls FIRST & FStei G-63-T^ 15$ pigment 16 hours 3$ pigment 5 days l4ocF R-900 1. part 10 parts 5 minutes itO.O as 3^0.0 gras oo7o gas 16 hours 1 quart jar 1 pint of 1/2" DUP050109386