An Improvement in the Manufacture of Rosin Liquor for Paper Makers and others.
Year: 1888

page_text: Date of Application, 21st Dec., 1888
Complete Specification Left, 18th Sept., 1889-Accepted, 19th Oct., 1889
PROVISIONAL SPECIFICATION.
An Improvement in the Manufacture of Rosin Liquor for Paper
Makers and others.
I CAMPBELL MORFIT of 132 Alexandra Road, South Hampstead, in the County of
Middlesex, Consulting Chemist do hereby declare the nature of this invention to be
as follows:-
My improvement consists in the substitution of Aluminate of Soda for Caustic
Soda, Soda Ash or Carbonate of Soda as the solvent of rosin. In the rosin
aluminate thus formed, rosin and alumina are present under conditions promotive of
concurrent and even co-operative action and with much better effect than is
obtainable by the use of the Colophanate or usual form of the rosin liquor of the
paper makers which is so apt to set free its soda base in a caustic state to the injury
of the paper. The rosin itself, also becomes white by the process now about to be
described.
I carry my invention into effect by first making the aluminate of soda by putting
into a suitable vat or other vessel about six imperial gallons of water, adding to it
about six pounds of caustic soda of 72° test, heating to 200° or 212° Fahrenheit
preferably by means of a leaden steam-tube resting upon the bottom of the vat, in
the form of a ring perforated on its upper surface with a line of small circular holes
to form a blow up."
This heating and rousing are to be continued until all the soda is dissolved, and
then about five pounds of white commercial alumina in fine powder is to be added
little by little, during uninterrupted rousing. The issue of the current of steam
effects both the heating and rousing and these in turn facilitate the chemical action
of the soda liquor upon the alumina which combines the two into soluble aluminate
of soda. The heating and rousing are to be continued until the whole of the alumina
is dissolved or only a small residue is left. At this stage is to be added enough of
cold water to raise the total volume of the liquor to slightly more than ten Imperial
gallons so that it may be of exactly that quantity when cold. But to ensure
homogeneousness the liquor must be heated and roused a minute or two after the
addition of this last water. The vessel is then to be covered in order that its contents
may settle and the liquor be drawn off clear from the sediment into another vessel of
larger capacity.
The solid aluminate of soda of the manufacturing chemists may replace the
foregoing liquor provided it is so prepared and dissolved in water as to form a
solution corresponding in strength and composition with the latter, but not
otherwise.
This larger vessel is to be fitted with a steam "blow-up" as already directed for
the smaller one.
The settled aluminate liquor having been drawn into this vessel,
steam is to be let into the "blow-up" and when the temperature of the liquor has
been raised to about 200° to 212° Fahrenheit about thirty pounds of finely powdered
rosin are to be added, little by little, until all or nearly of it has been dissolved by
force of the heating and agitation produced by the steam escaping through the holes
in the "blow-up." In this strong or condensed state and when it has been drawn off
from the sediment which has been allowed to settle the liquor is to be known as
Comaralyk. But as comaralyk of this strength is apt to drop a portion of its rosin
especially when the air is cool; it is expedient to provide against such a contingency.
It is true that whatever rosin may be thus precipitated redissolves when the liquor is
reheated but it were better that the liquor should preserve its state of solution as
continuously as possible. Therefore it must be made more dilute in the first instance,
to which end and before adding the rosin, twenty imperial gallons of water are to be

page_text: added to the solution of aluminate of soda and the whole heated to 212° Fahrenheit
by the steam "blow-up." Then after having dissolved the rosin in this weaker liquor
twenty more imperial gallons of water, are to be added and the whole intimately
blended by means of the steam "blow-up." But this last water must be heated to
200° to 212° Fahrenheit previously; and the "blow-up" kept going for ten to
fifteen minutes after the addition of the water or until the liquor is only slightly
cloudy. The whole is then .left to settle under cover and the liquor then drawn off
from the sediment and kept in closely stoppered vessels. Thus made it is to be known
as Lycophil, and it will preserve its state of complete solution even in cool temperatures
and quickly take up again any rosin that may in colder weather drop, simply by
being reheated.
It may be used in the manner usually practised with colophonate in paper making,
but for other purposes must be managed according to the experience and judgment
of the operator with the colophonate which it is to replace. In all cases however,
itself, as well as the liquor to which it is to be added, must be made hot previously
to the mixing. Then, though slightly cloudy, the Lycophil will be a smooth homo-
geneous liquor free from visible particles of rosin.
1 would here remark that the proportions of the ingredients and the temperatures of
working, and mode of treatment may be somewhat modified without departing from
the peculiar character of my invention.
Dated this 21st dow of December 1000
CAMPBELL MORFIT.
By Harris & Mills,
23, Southampton Buildings, Agents.
COMPLETE SPECIFICATION.
An Improvement in the Manufacture of Rosin Liquor for Paper
Makers and others.
I, CAMPBELL MORFIT of 132 Alexandra Road, South Hampstead, in the County of
Middlesex, Consulting Chemist do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My improvement consists in the substitution of Aluminate of Soda for Caustic
Soda, Soda Ash or Carbonate of Soda as the solvent of rosin. In the rosin aluminate
thus formed, rosin and alumina are present under conditions promotive of concurrent
and even cooperative action and with much better effect than is obtainable by the use
of the Colophonate or usual form of the rosin liquor of the paper makers which is so
apt to set free its soda base in a caustic state to the injury of the paper. The rosin
itself, also becomes paler by the process now about to be described.
I carry my invention into effect by first making the Aluminate of soda by putting
into a suitable vat or other vessel about six imperial gallons of water, adding to it about
six pounds of caustic soda of 72° heating to 200° or 212° Fahrenheit preferably by
means of a leaden steam-tube resting upon the bottom of the vat, in the form of a
ring perforated on its upper surface with a line of small circular holes to form a
blow-up."
This heating and rousing are to be continued until all the soda is dissolved, and
then about five pounds of white commercial alumina in fine powder is to be added,
little by little, during uninterrupted rousing.
The issue of the current of steam effects both the heating and rousing and these in
turn facilitate the chemical action of the soda liquor upon the alumina which continues
the two into soluble aluminate of soda. The heating and rousing are to be continued
until the whole of the alumina is dissolved or only a small residue is left. At this
stage is to be added enough of cold water to raise the total volume of the liquor to
slightly more than ten Imperial gallons so that it may be of exactly that quantity
when cold. But to ensure homogeneousness the liquor must be heated and roused a
minute or two after the addition of this last water. The vessel is then to be covered

page_text: in order that its contents may settle and the liquor be drawn off clear from the
sediment into another vessel of larger capacity.
The solid aluminate of soda of the manufacturing chemists may replace the
foregoing liquor provided it is so prepared and dissolved in water as to form a
solution corresponding in strength and composition with the latter.
This larger vessel is to be fitted with a steam "blow-up" as already directed for
the smaller one.
The settled aluminate liquor having been drawn into this vessel,
steam is to be let into the "blow-up" and when the temperature of the liquor has
been raised to about 200° to 202° Fahrenheit about thirty pounds of finely powdered
rosin are to be added, little by little, until all or nearly all of it has been dissolved by
force of the heating and agitation produced by the steam escaping through the holes
in the "blow-up." In this strong or condensed state and when it has been drawn off
from the sediment which has been allowed to settle the liquor is to be known as
Comaralyk. But as comaralyk of this strength is apt to drop a portion of its rosin
especially when the air is cool; it is expedient to provide against such a contingency.
It is true that whatever rosin may be thus precipitated redissolves when the liquor is
reheated but it were better that the liquor should preserve its state of solution as
continuously as possible. Therefore it must be made more dilute in the first instance,
to which end and before adding the rosin, twenty imperial gallons of water are to be
added to the solution of aluminate of soda and the whole heated to 212° Fahrenheit
by the steam "blow-up." Then after having dissolved the rosin in this weaker liquor
twenty more Imperial gallons of water are to be added and the whole intimately
blended by means of the steam "blow-up." But this last water must be heated to
200° to 212° Fahrenheit previously and the "blow up" kept going for ten to
fifteen minutes after the addition of the water or until the liquor is only slightly
cloudy. The whole is then left to settle under cover and the liquor then drawn off
from the sediment and kept in closely stoppered vessels. Thus made it is to be known
as Lycophil, and it will preserve its state of complete solution even in cool temperatures
and quickly take up again any rosin that may in colder weather drop, simply by being
reheated.
It may be used in the manner usually practised with colophonate in paper making,
but for other purposes must be managed according to the experience and judgment
of the operator with the Colophonate which it is to replace.
In all cases however, itself, as well as the liquor to which it is to be added, must be
made hot previously to the mixing. Then, though slightly cloudy, the Lycophil will
be a smooth homogeneous liquor free from visible particles of rosin.
I would here remark that the proportions of the ingredients and the temperatures
of working, and mode of treatment may be somewhat modified without departing
from the peculiar character of my invention.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
The preparation and use of Comaralyk and Lycophil or solutions of rosin in
Aluminate of Soda after the manner and for the purpose as herein before substantially
set forth.
Dated
September 10th 1889.
CAMPBELL MORFIT.
By Harris & Mills,
23, Southampton Buildings, Agents.
CAMPBELL MORFIT.
By Harris & Mills,
23, Southampton Buildings, Agents.