Document 6xD4G3M82xrLZQN403kEnMZ6
E. 1. DU PONT DE NEMOURS & COMPANY PIGMENTS DEPARTMENT 256 VANDERPOOL STREET NEWARK, NEW JERSEY
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NEWARK PLANT PIGMENT COLOR RESEARCH REPORT
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Progress Report
-- SICE LIfc'2 STOjDY
V Period Coveredt
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1943 " January 1944
i FILE:
DATE:
11-19-15
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Serial So. 8-45-71 Copy So. ^
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BEWARE PLAST PIGM18T COLOR RRSEARCE REPORf
Progress Report
Titles BLOB LME BL-220-D - SICE LIST STDDX Period Covered: August 1943 - January 1944
SUBMITTED Bit APPROVED Bit
F. Chalupski
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V. Chalupski
DATE SUBMITTED: 10-30-45
DATE ISSUED:
11-19-45
DUP050150809
3to August 1943 the plant nyMUwl'vMMNk eeidlstai.ee 03a ' A 1 this presses because of weakness end dullness of pr<toetloa. She difficulty was traced to peer quality of the ^Umastrl Slue, faring ' this fefi$i;.ef study & ahahc* was Me in the process for more economical OPTOPStlOoff'.
"15. .$&oeearr@jsee of weakness and dullness (see KM-41-69' for earlier 61 ek list study) was *pikly traced to the guality of the dye heimg :;^ifplled by irehem* This matter was discussed with the law totks -and they admitted difficulty with control of the "Honcstra!* Sine, recent batches haring been let in masstone and therefore of the poorly dispersing type. Hif indicated lisa# this difficulty was being cleared dp* A sine# of Mi semi-works batches were Me to test differenf'.lots of ^ionastril*' .glue* including one presumably bad batch and three new batches alleged to be satisfactory, these three betehee did show considerable improvement over current production, the process was tantfWttg: taken to the plant, shore performance was satisfactory using solUtii Vtaodard formula at the start of 'this work was X<-99tt* a 250 lb. botch else mad in the Abb# les#rt mixer. Because of high operating cost of this formula and increased demand for the color during tie-course of this sick list study* trial runs were made at larger batch sloes is the soluble blue mixer, fhese appeared to be entirely satisfactory in (polity, and this process was therefore adopted as standard. At the close of the work a new standard formula, E-iwS, was written and the process turned back to the plant. Bee Development Section Bata Book 5-45-15.
DUP050150810