Document ZJoq7rGZzJRkXLzd27OmeeEqZ
E. I. DU PONT DE NEMOURS & COMPANY
KREBS PIGMENTS DEPARTMENT 256 YANDERPOOL STREET NEWARK. NEW JERSEY
Copy No. 1
/r ^ 4 - 73
NEWARK PLANT PIGMENT COLOR RESEARCH REPORT
Period Covered:
RT-533-D, SEMI-WORKS AND PLANT DEVELOPMENT OF DIRECT L&KING FORMULA.
April 1945 to April 1946.
FILE:
DATE,
11/5/46
N39960
Serial Me* KH-46-73
Copy Me* 3.
Copy to|
X Numerical file
2 Research Office (222*23)
3 - Library file
(222*23)
#10 Building File
5 - 9rn Chalupeki - Plant files.
6 - Imperial Chemical Industries* Ltd*
fm
*
gm m
9 1* f 6peagemaH| Meeark-
NEWARK PLANT PIGMENT COLOR RESEARCH REPORT
final Report
Title* RT-533-B. SEMI-WORKS AMD PLANT DEVELOPMENT Of DIRECT L&K1N0 FORMULA.
Period Covered* April 1945 to April 1?46*
SUBMITTED BY* APPROVED Mi
O.J.C* IQ*i#x, .. q?/
Cs.WTyjytk-
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// '
L 0* Morrison
DATE SUBMITTEDt 9/12/46
DATE ISSUED 1 11/5/46
N39960.01
DUP050150132
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A direct-laking presses for manufacture of the manganese toner of *UtbMol* RjUm 3 mo developed la the laboratory ae K-2153* Thie report eovera semi-works and plant development studies*
Xa the semi-works, four batehes and a ads were Bade according to
K-2153* The first of thee#, lot 8104 was set aside for sampling material after
slkyd test* showed it to be a reasonable match for the existing RT-533-D standard
(let 7329* which had been prepared by a possess using purchased dye}*
Thirty plant batohss wars then manufaotured with only slight variations from the K-2153 formula* The statue of the eeler at the end of the petted severed by this report was as given below*
(a) A plant formula, K-2287, had been written, with processing data sheet and notes*
(b) A mix of four plant batches, lot 8606, had been set up as standard on January 30, 1946* It compared as follows versus lot 8104, based on alky grinds*
liaastons s* It*
Strength equal
Tint vs yellow
(c) The plant assumed supervision of RT-533*, K-2287, on April 3, 1946*
The history of the diroot Inking study shows laboratory porforaanoo to have bens quite inconsistent* This is also true of plant behavior* Indications are that the variables developed in the laboratory effect similar action in the plant*
S%xvi*iaa of plant aaanfiaeture of this oelor was returned to tho Bool-Works on a "Blek List* basis on Juno 11, 1946.
All the seal-works batehes were msde according to K-2153, with no ohanges except to add the PGAHSA to eauotio soda*
Plant batehes wars also made aseerding to K-2153, but at 0*9 sol to fit
available equipment* Variations were mods in the amount sf eauatie soda used to dissolve tho BOH, in order te control tho pS after oeupling to that specified in K-2153*
Be formal variable study was run, and the available results were confused by inadequacy of the alkyd test which wae weed for evaluation* Ho true evaluation was obtained for seat sf the early batehes*
The plant formula K-2287 incorporates only a few ohanges from K2153, namely, the cut in batch site, the inore&se in caustic soda for coupling, and the adoption of plant manipulations*
Details of all tho batehes oan be found in B88-46-47*
DUP050150133
-2' Formula BT-533** **2287, and notoe. MI-45-39*
TF-132-# (Rubout method) TF-336-2 (Ulfd grind method) Development Section Notebook 46-47.
GLOSSARY
RT-533-D* 4 Manganese toner of e diaso An* ehlor aniline mete oolfoaie noli - Beta hydroxy naphthoic aeld coupling.
FCAMSAt Para ehlor aniline seta oulfonio aeld. BOM t Beta hydroxy naphthoic aeld*
DUP050150134