Orrs Zinc White - The First 50 Years Pages 48-52
Orrs Zinc White - The First 50 Years Pages 48-52
Orrs Zinc White - The First 50 Years Pages 48-52
bona fide article of trade we are simply doing our duty, to our many subscribers and readers."
So frank a statement and at so early a date must have considerable historical authenticity and it should be noted
that it places the commercial beginnings of Orr's pigment around 1867. Incidentally, the quotation infers that Orr
provided lithopone to the Charlton works of the Silicate Paint Company before 1980, in which year he took over control
of it.
The following transcription of an early letter is of interest as an expression of early opinion on the new pigment.
Paint Manufactury, General Terminus,
Harbour Railway Glasgow.
14th. October, 1873.
J B. Orr, Esq.
Dear Sir,
I have tested the sample of the new White Zinc received from you a year and If ago, with the following
results :Samples of Genuine White Lead and Zinc Oxide Paint were made up at the time, and in same manner as
yours, and applied respectively on three sections wooden panel ; And, so finished, the board was placed on the
outside wall of my factory, where it has remained for eighteen months, exposed to the weather.
On being taken down today for examination, I found the White Lead grey in colour, the Zinc Oxide good,
and your White Zinc had lost none of its brightness. Its covering body is good, and from the crucial test above
referred to it appears to be a serious rival to the White Pigments in present use.
I am, Dear Sir,
Yours Truly,
(Signed) JAMES PAUL"
While Orr was establishing the new pigment in Scotland a corresponding development was taking place on the
continent, in Belgium, where manufacture appears to have commenced about 1871 on the basis of a Belgian patent by
V. Leger, employed by the firm of Charles Soudan-Boulez. After various abortive attempts, the industry took root
Germany in the '8o's, and also about this time, in America, at Newark although there it did not succeed in establishing,
itself permanently until much later. However, there does not appear to have been any continuity either on the continent
or in America such as there was with Orr in Britain. Even as early as 1878 C. F. Claus, a German chemist patenting a
process for the treatment of various industrial zinc containing solutions
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specified that the products were for use in the manufacture of pigment "as that of BP 517/1874," which is Orrs patent,
and this suggests that even at that date Orr was generally regarded as the inventor of lithopone. Certainly he was the
first inventor to make a lasting commercial success of zinc sulphide as a pigment in conjunction with barium sulphate
and he is deservedly and universally recognised is the Father of the Lithopone Industry.
It is given to few men to inaugurate and to establish a new industry and very rarely indeed is a great new
manufacture held in one man's hands for upwards, of seventy years so that he leaves it unshakably established in his
own country and throughout the world. It was given to John Bryson Orr to do these things. Let us look more closely at
the man and his achievement. The Journal of the Chemical Society (1933) gives the following biographical details in his
obituary notice.
John Bryson Orr was born in 1840 in Blantyre, Lanarkshire v here his father was in business as a dyer.
He was apprenticed to the firm of Lewis, McLellan & Co., Oil and Colourmen and Drysalters in Glasgow, and
studied Chemistry that City, at the Andersonian College.
In 1861, he carried out experiments on mixed zinc and barium pigment and seven years later produced
the pigment in bulk. Shortly after he travelled on Continent in connection with a colour business, and on the
outbreak of the Franco-German war, served as an unofficial war correspondent for a Glasgow newspaper.
Orr returned to Glasgow in 1872 and set up a factory for the manufacture of lithopone. In 1880,
shortly after his factory had been burnt down, he, with his partner, formed the Silica Paint Co. in London, where
he manufactured lithopone (sold under the name of " Charlton White ") and the first washable distemper known
as "Duresco." In 1896, he founded in Widnes the firm of Orr's Zinc White Ltd., and in 1930 this business was
acquired by the Imperial Smelting Corporation of which Orr remained director until the time of his death.
Possessed of great mental and bodily vigour, Orr travelled much and interested himself in many literary
and artistic pursuits. His death on September 23rd, 1933, removed a striking personality from the industrial life
of Widnes.
John Bryson Orr was elected a Fellow of the Chemical Society on Dec 15th 1881,
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There are two slight errors here ; from contemporary literature the Silicate Paint Company (at the present time still
using the supplementary title J. B. Orr & Co.) appears to have been in existence for some time before 1880, using
material from Orr's Glasgow works ; Orr's Zinc White Ltd., Widnes dates from 1898.
Study of Orr's early work makes it evident that it was zinc sulphide that he considered the dominant partner of the
two compounds in his pigment. Barium sulphate followed simply on the fact that interaction of zinc sulphate and barium
sulphide was a conveniently simple way of precipitating zinc sulphide, albeit with the blanc fixe, in a liquor
substantially free from other dissolved materials. He was quite clear on the subordinate character, of the blanc fixe ; his
1884 patent described the use of a mixture of barium and strontium sulphates and for a short time the process based on
this patent was operated by Orr at the Charlton works. Some early advertising by Orr's Zinc White Ltd., refers to their
product in the text as " Zinc Sulphide White" without any reference to the extender. Incidentally, at this time (about
1906) Orr's Zinc Sulphide White was sold at various strengths from 15%, Zinc sulphide up to 50%, but with a warning
: Although the different qualities are sold by Zinc contents, this in itself is by no means reliable way of testing one
sample with another as the physical state is even more important than the chemical composition." This warning on the
importance of physical properties in pigment comparisons is as true to-day as it was forty years ago.
If an assessment were to be made of the steps in Orr's work leading to success, it would begin with this recognition
of zinc sulphide as a white, non-poisonous compound, unreactive to the industrial gases which were fouling the air even
in his youth, and would follow on to the realisation that the methods of the alkali industry which caused them could be
used on barytes to produce all easily purified water soluble sulphide which readily transposes with zinc sulphate. Add to
that his recognition that calcination is essential and persistence and acumen to found and foster the Widnes factory, and
the safe establishment of the lithopone industry is sure.
The name " Lithopone " attached to the zinc sulphide pigment industry is a curious reflection on the force of
circumstances which is not without interest. J. B. Orr himself never referred to the pigment he produced as "
Lithopone." His 1874 patent named it " Orr's permanent white enamel paint " and this passed through " permanent zinc
white," permanent zinc sulphide white" and various other permutations until "Orr's Zinc White" became generally used
on the founding of the Widnes works. Indeed it can only be inferred from his early advertising that Orr looked with
extreme disfavour and some contempt on " Lithopone," evidently deeming it vastly inferior to his own product. For
example, in 1905 there is the warning " Our ZINC WHITE should not be confounded with LITHOPONE, which is the
German imitation of our original product." There seems
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