An Improved Chemical Preparation to be used for Washing, Scouring, Fulling, Bleaching, Boiling, and other purposes.
Year: 1892

page_text: Date of Application, 31st May, 1892
Complete Specification Left, 31st Jan., 1893-Accepted, 4th Mar.,
1893
PROVISIONAL SPECIFICATION.
[Communicated from abroad by CARLO CASTELLANI, of 14, Via S. Paolo, Milan,
in the Kingdom of Italy.]
An Improved Chemical Preparation to be used for Washing, Scouring,
Fulling, Bleaching, Boiling, and other purposes.
I, HENRY HARRIS LAKE, of the firm of Haseltine Lake & Co. Patent Agents,
45 Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention to be as follows:-
This invention relates to an improved chemical preparation to be used in the
washing, scouring, fulling, bleaching and decoloring of textile materials, in the
boiling or scalding of linen hemp, cotton and other yarn, in the formation of a size,
and for other purposes.
The improved preparation enables hydrated lime to be utilized in combination
with carbonate of soda without producing a corrosive action whilst preserving the
suppleness of the yarns or fabrics treated. This effect has not heretofore been
obtained, so that the employment of this preparation realizes a very considerable
saving in comparison with the detergents now in use. The whole difficulty consists
in knowing what lime should be used and in the manner of slaking it.
The lime must be very white and very pure without being excessively fat; it is
reduced to small pieces, the coloured parts being put aside.
These pieces are immersed in water prepared for this purpose for a time not
exceeding two seconds (and even for a shorter time if the lime has undergone a
spontaneous slaking action) so that after the slaking the lime presents the form of
an extremely fine and impalpable powder.
To the water employed for slaking the lime is previously added carbonate of
soda. 5 parts by weight of the latter being introduced for every 100 parts by weight
in the case of water containing lime or potash; if on the contrary the water
contains silicates, iron or other substances the proportion of the carbonate of soda
should be increased to 10 per cent. It will be understood that the soda must be
previously dissolved in the water designed for slaking the lime.
When the lime has been slaked in the above-described manner it is mixed with
carbonate of soda and water in the proportions of 100 kilogrammes of lime for
100 kilogrammes of carbonate of soda, the preparation being thus obtained in the
form of a powder. To 100 kilogrammes of this preparation in the form of a
powder I add 300 litres of pure water, and mix the same in the cold state until the
liquid at the surface shall be quite clear; it is left to digest for 24 hours and
decanted to obtain the pure liquid preparation.
In order to obviate the inconveniences which may easily be caused and to obtain
a satisfactory result it is necessary that the lime to be used shall be burned in a
kiln which enables a uniform temperature to be maintained, and that it shall be
removed when it has the same quality as limestone.
The chemical preparation obtained in this manner in a liquid or pasty form is
designed to replace the salts heretofore employed and to enable the employment of
heat in the following industrial operations to be dispensed with :-
1. Washing, cleaning and scouring fabrics of any kind.
2. Washing and fulling hats and woollen cloths.
3. Washing and scouring raw spun wool.
4. Decoloring and scouring of linen or hemp yarns.
5. Washing and purging cocoons, silk waste, and the like.
6. Boiling or scalding linen, hemp, cotton and other
yarns.
The same product may serve for shortening and simplifying the treatment of

page_text: hides and skins by facilitating the unbairing and raising operations. It may
advantageously be employed in the bleaching of linen, in which case the interven-
tion of heat is necessary for destroying wine, blood, coffee spots and the like.
Another application of this preparation is the dressing or sizing of the warp
threads used in looms. For this purpose I treat the rice with my preparation at
the temperature of 20 degrees and add fat or grease and sulphate of lime.
Dated this 31st day of May 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Chemical Preparation to be used for Washing, Scouring,
Fulling, Bleaching, Boiling, and other purposes.
I, HENRY HARRIS LAKE, of the firm of Haseltine Lake & Co. Patent Agents,
45 Southampton Buildings, in the County of Middlesex, 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 :-
This invention relates to an improved chemical preparation to be used in the
washing scouring, fulling, bleaching, and decolorising, of textile materials, in the
boiling or scalding of linen, hemp, cotton, and other yarn in the formation of size,
and for other purposes.
The improved preparation enables hydrated .lime to be utilized in combination
with carbonate of soda without producing a corrosive action whilst preserving the
suppleness of the yarns, or fabrics. treated. This effect has not heretofore been
obtained, so that the employment of this preparation realizes a very considerable
saving in comparison with the detergents now in use. The whole difficulty consists
in knowing what lime should be used, and in the manner of slaking it.
The lime must be very white and very pure without being excessively "fat," it
is reduced to small pieces, the coloured parts being put aside.
These pieces are immersed in water prepared for this purpose for a time not
exceeding two seconds (and even for a shorter time if the lime has undergone a
spontaneous slaking action), so that after the slaking the lime presents the form of
an extremely fine and impalpable powder.
To the water employed for alaking the lime is previously added carbonate of
soda; 5 parts by weight of the latter being introduced for every 100 parts by
weight in the case of water containing lime or potash; if on the contrary the water
contains silicates, iron or other substances, the proportion of the carbonate of soda
should be increased to 10 per cent. It will be understood that the soda must be
previously dissolved in the water used for slaking the lime.
When the lime has been slaked in the above-described manner it is mixed with
carbonate of soda and water in the proportions of 100 kilogrammes of lime for
every 100 kilogrammes of carbonate of soda the preparation being thus obtained in
the form of a powder. To 100 kilogrammes of this preparation in the form of a
powder I add 300 litres of pure water and mix the same in the cold state until the
liquid at the surface is quite clear; it. is left to digest for 24 hours, and decanted
to obtain the pure liquid preparation.
o In order to obviate the inconveniences which may easily be caused, and to obtain
a satisfactory result it is necessary that the lime to be used shall be burned in a
kiln which enables a uniform temperature to be maintained, and that it shall be
extracted always from the same quality of limestone.
.
The chemical preparation obtained in this manner in a liquid or pasty form is
designed to replace the salts heretofore employed and to enable the employment of
heat in the following industrial operations to be dispensed with :-
(1) Washing cleaning and scouring fabrics of any kind.
2) Washino and fulling hate and woollen cloths.
:-

page_text: (3) Washing and scouring raw spun wool.
(4) Decolorising and scouring of linen or hemp yarns.
(5) Washing and purging cocoons, silk waste, and the like.
(6) Boiling or scalding linen, hemp, cotton and other yarns.
The same product may serve for shortening and simplifying the treatment of
hides and skins by facilitating the unhairing and raising operations. It may
advantageously be employed in the bleaching of linen, in which case the intervention
of heat is necessary for destroying wine, blood, coffee spots and the like.
Another application of this preparation is the dressing or sizing of the warp
threads used in looms. For this purpose I treat the rice with my preparation at
the temperature of 20 degrees and add fat or grease and sulphate of lime.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is :-
A new preparation to be used in the washing, scouring, fulling, bleaching,
decolorising boiling or scalding of linen, hemp, cotton and other yarn, in the
formation of a size and for other analogous purposes, and which is obtained by
slaking very white, very pure and very uniformly burnt lime in water previously
prepared with carbonate of soda, and by mixing the lime thus obtained with a fresh
quantity of carbonate of soda and water.
Dated this 21st day of Janua1002
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.