Improvements in the Manufacture of Spangles and other Articles from Gelatine.
Year: 1898

page_text: Date of Application, 10th Sept., 1898
Complete Specification Left, 9th June, 1899-Accepted, 29th July, 1893
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Spangles and other Articles
from Gelatine.
I, AUGUST ZIMMERMANN, of 9 and 10, St. Mary-at-Hill, in the City of London,
do hereby declare the nature of this invention (which has been communicated to
me from abroad by The Chemische Fabrik auf Actien vormals E. Schering, of
170 and 171, Müllerstrasse, Berlin, in the Empire of Germany,) to be as
follows:-
Films, skins or plates for photographic purposes have been manufactured
from glue like substances, and gelatine films sensitive to light or colour, also
pictures produced from ordinary gelatine sensitized to light or colour, have been
hardened by adding formic aldehyde to an aqueous gelatine solution and pouring
or spreading out this fluid upon backings and allowing it to dry or subsequently
hardening the finished films or plates by formic aldehyde either by dipping into
a formic aldehyde solution or by treatment with gaseous formic aldehyde.
The latter process viz.: the treatment of gelatine films skins and plates with
gaseous formic aldehyde is according to this invention applied to the manu-
facture of gelatine spangles, the so called paillettes used for the ornamentation
of ladies dresses or for the manufacture of gelatine foils of any shape and large
and small articles of gelatine which may be rendered sensitive to light or colour
according to the use to which the spangle or article in question is to be put.
This is done not by hardening the original gelatine body from which the gelatine
spangles leaves or articles are stamped or shaped, with gaseous formic aldehyde,
but by treating the shaped spangle leaf or body with gascous formic aldehyde.
This method of manufacture has the advantage that no insoluble gelatine waste
is produced as would be the case if formic aldehyde solution were added.
The process is carried out as follows:-
The gelatine films are produced in the usual way, coloured as required, and
gelatine spangles of the required shape stamped therefrom. The gelatine
spangles are exposed, by spreading out in a closed room, to the action of gaseous
formic aldehyde whereby the spangles are completely hardened.
In an analogous manner the leaves foils or articles of the desired shape are
made by first making leaves foils or articles of the desired shape from untreated
gelatine and then hardening with gaseous formic aldehyde.
Gaseous formic aldehyde may be produced by evaporating aqueous formic
aldehyde (formalin), or more advantageously by gasifying solid polymerized
formaldehyde, for example, in such an apparatus as is described in the Specifica-
tion of the Patent No. 26667 of 1896.
Dated this 9th day of September 1898.

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Spangles and other Articles
from Gelatine.
I, August ZIMMERMANN, of 9 and 10, St. Mary-at-Hill, in the City of London,
do hereby declare the nature of this invention (which has been communicated to
me from abroad by The Chemische Fabrik auf Actien vormals E. Schering, of
170 and 171, Müllerstrasse, Berlin, in the Empire of Germany,) and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
1
Films, skins or plates for photographic purposes have been manufactured
from glue like substances, and gelatine filmis sensitive to light or colour, also
pictures produced from ordinary gelatine sensitized to light or colour, have been
hardened by adding formic aldehyde to an aqueous gelatine solution and pouring
or spreading out this fluid upon backings and allowing it to dry or subsequently
hardening the finished films or plates by formic aldehyde either by dipping into
a formic aldehyde solution or by treatment with gaseous formic aldehyde.
The latter process viz. the treatment of gelatine films skins and plates with
gaseous formic aldehyde is according to this invention applied to the manu-
facture of gelatine spangles, the so called paillettes used for the ornamentation
of ladies dresses or for the manufacture of gelatine foils of any shape and large
and small articles of gelatine which from the use to which the spangle or article in
question is to be put need not be rendered sensitive to light or colour.
This is done not by hardening the original gelatine body from which the gela-
tine spangles, leaves or articles are stamped or shaped, with gaseous formic
aldehyde, but by treating the shaped spangle leaf or body with gaseous formic
aldehyde. This method of manufacture has the advantage that no insoluble
gelatine waste is produced as would be the case if formic aldehyde solution were
added.
The process is carried out as follows:-
The gelatine films are produced in the usual way, coloured as required, and
gelatine spangles of the required shape stamped therefrom. The gelatine
spangles are exposed, by spreading out in a closed room, to the action-of gaseous
formic aldehyde whereby the spangles are completely hardened.
In an analogous manner the leaves, foils or articles of the desired shape are
made by first making leaves, foils or articles of the desired shape from untreated
gelatine not treated with formic aldehyde and then hardening with gaseous formic
aldehyde.
Gaseous formic aldehyde may be produced by evaporating aqueous formie
aldehyde (formalin), or more advantageously by gasifying solid polymerized
formaldehyde, for example, in such an apparatus as is described in the Specifica-
tion of the Patent No. 26667 of 1896.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
The manufacture of spangles and other articles insoluble in water from gelatine
consisting in stamping or shaping in the usual manner the spangle or other article
in the required shape and size out of gelatine untreated with formic aldehyde
and then exposing them to the action of gaseous formic aldehyde.
Dated 11 1 T1000