IMPROVEMENTS IN THE PRODUCTION OF COMPOUNDS CONTAINING NITRO-CELLULOSE SUITABLE AS VARNISHES AND FOR MAKING LEATHER CLOTII
Year: 1884

page_text: PROVISIONAL
DI MUIFICATION.
We WILLIAM VIRGO WILSON of Jubilee Street, Mile End in the County of
Middlesex, Colour Manufacturer and JOSEPH STOREY of Lancaster in the County
of Lancashire Manufacturing Chemist do hereby declare the nature of our
invention for IMPROVEMENTS IN THE PRODUCTION OF COMPOUNDS CONTAINING
NITRO-CELLULOSE SUITABLE AS VARNISHES AND FOR MAKING LEATHER CLOTII to
be as follows:-
:-
This invention relates to the production of compounds containing nitro-cellulose
and consists in the use of Acetate or Chloride of Amyl as new and cheap solvents
ofthe above named body.
These may be used separately, together or in combination with any of the other
well known menstrua for this material.
In any case the solvent or solvents may be used in such proportions as to
produce a liquid having the consistency of varnish or only in sufficient quantity
to convert the nitro cellulose into a stiff paste or dough.
This compound, as a varnish, may be used for covering Metals, Leather, Fabrics,
Paper, Pictures, Photographs &c and in either condition is especially adapted for
the manufacture of Leather Cloth and Artificial Leather and has besides the
advantage of being applicable in the open air.
It may be applied directly for the above purposes by any of the well understood
modes of application or the said varnish or dough may be further incorporated
with any of the well known pigments or with such mineral, animal, vegetable and
essential oils as have already been extensively used in combination with nitro-
cellulose.
The consistency of the substance will be dependent on the proportions of the
several ingredients employed but we have found the following combinations are
very suitable for the manufacture of Leather Cloth and Artificial Leather.
The Solvents
Nitro-cellulose
-
-
-
300 parts.
-
100

page_text: is rendered homogeneous and the compound made ready for use-This may be at
once or subsequently spread upon fabrics or webs for the purposes named.
We find the machines best adapted for this purpose are those commonly used for
spreading India Rubber and Gutta Percha upon fabrics and webs in a manner now
well understood.
We do not however confine ourselves to any particular proportions or com-
binations.
We WILLIAM VIRGO WILSON of Jubilee Street, Mile End in the county of
Middlesex, Colour Manufacturer and JOSEPH STOREY of Lancaster in the county
of Lancashire, Manufacturing Chemist do hereby declare the nature of our
invention for IMPROVEMENTS IN THE PRODUCTION OF COMPOUNDS CONTAINING
'NITRO CELLULOSE SUITABLE AS VARNISHES AND FOR MAKING LEATHER CLOTH,
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
I :
This invention relates to the production of a compound consisting essentially
of or containing Nitro-cellulose dissolved in acetate of Amyl the Invention
consisting especially in the employment as a solvent for nitro cellulose of the
acetate of amyl either alone or in combination with any of the other well known
menstrua for nitro-cellulose. In any case the solvent may be used in such
proportion as to produce a liquid having the consistency of varnish, or only in
sufficient quantity to convert the nitro-cellulose into a stiff paste or dough, the
preferred proportions in the latter case being as follows. The solvent 600 parts.
Nitro cellulose 200 parts. This pasty compound when hardened may be used for
every purpose to which the article known in commerce as celluloid is applicable.
This compound as a varnish is particularly applicable for the decorative covering
of metals, Wood, Leather and for coating Fabrics, Paper, Pictures, Photographs etc,
and in either condition is especially adapted for the manufacture of Artificial
leather, Leather Cloth, Fabrics in imitation of starched Linen 'for the manufacture
of Collars, Cuffs, shirt fronts, Vests &c. It may be applied directly for the above
purposes by any of the well understood modes of application or the said varnish or
dough may be further incorporated with any of the well known piginents or with
such vegetable and essential oils, as have already been extensively used in
combination with nitro-cellulose.
The consistency of the substance will be dependent on the proportions of the
Eeveral ingredients employed, but we have found the following additions to tho

page_text: compound in the form of a stiff paste or dough as above specified to be very
suitable for the manufacture of Artificial Leather and Leather Cloth.
Castor Oil
China Clay or other pigmentary or colouring matter
Essential oil of Birch or other aromatic body
Tannic acid
- 1
-
->
-
-
300 parts.
100 parts.
-
1
"
-
1
"
For the coating of Fabrics to be used for the manufacture of collars cuffs etc we
add to the compound in the form of a stiff paste or dough as first above specified.
Castor oil
-
-
200 parts.
100 "1
1
1 part.
Oxide of zinc or other white pigmentary matter
Essential Oil of Cassia or other aromatic body
For coating paper the proportion of oil added would vary from 100 to 300 parts
and the addition of any pigmentary body would depend on whether the varnish is
required to be transparent or opaque.
In all cases the additional ingredients are roughly mixed with the compound
and the whole subsequently placed in a sieve or straining machine or a masticating
machine or grinding rolls to which the application of heat is advantageous whereby
the mass is rendered homogeneous and ready for use, This mass may be then
spread upon fabrics or webs for the purposes named.
We find the machines best adapted for this purpose are those commonly used for
spreading India Rubber and Gutta Percha upon fabrics and webs in a manner now
well understood. Having now particularly described and ascertained the nature of
the said Invention and in what manner the same is to be performed, we would
observe that we do not confine ourselves to the particular proportions stated for
the solvent and the nitro-cellulose nor to any particular proportions or combinations
of the emollient, pigmentary and aromatic materials added to the compound but
what we claim is :-
1 The application of acetate of amyl as a solvent for nitro-cellulose and the
production of a compound consisting essentially of or containing nitro-cellulose
dissolved in acetate of amyl either with or without the addition of any of the
other well known menstrua for nitro-cellulose as specified.
2nd The application of the nitro cellulose dissolved or softened in acetate of
amyl (either alone or with the addition of any of the other well known menstrua
for nitro-cellulose) to the production of varnishes, and the employment of the said
varnishes for coating fabrics for the purposes specified.
3rd As a new article of manufacture a leather cloth composed of a web or fabric
coated with a compound consisting essentially of a residuum of nitro-cellulose from
a solution of the same in acetate of amyl alone or together with any of the other
well known solvents for nitro-cellulose with the addition of suitable emollient
pigmentary and aromatic substances as specified.
Dated thio 7th day of Tanu 100%
W. VIRGO WILSON.
JOSEPH STOREY.
By their Agents, A. M. & Wm Clark,
53, Chancery Lane, W.C.