Containing Silk for Improving the Appearance of the same.
Year: 1887

page_text: Date of Application, 7th Apr., 1887
Complete Left, 2nd Jan., 1888
Complete Accepted, 3rd Feb., 1888
or Containing Silk for Improving the Appearance of the same.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
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 process of treating fabrics composed of silk
only, or of silk combined with cotton or wool, for the purpose of producing upon the
said fabrics certain effects of shrinkage and elasticity, and thereby giving to these
fabrics an entirely new appearance.
According to the nature of the fabrics to which this treatment is applied, and also
according to modifications in the process which will hereinafter be described, these
effects of shrinkage and elasticity are produced either in a plain form, with convex
effects, or with fleecy effects longitudinally folded and craped.
This process is applicable to any varieties of silk fabric, and especially to fabrics
designed for crapes, English crape imitations, silk handkerchiefs, comforters and the
like, and particularly to fabrics designed for goffering.
It is, moreover, applicable not only to pure silk fabrics, but also to mixed fabrics,
such as cotton and silk, wool and silk, the cotton and the wool not being affected.
This process is carried into practice in the following manner.
A cold bath is prepared, which is formed of chloride of zinc and water, varying,
according to the nature of the fabrics that are to be treated, from 20 degrees to
40 degrees Baumé, weak baths being adapted for light fabrics, and strong baths for
reduced fabrics.
The fabrics are then immersed in this bath, and left therein for from an hour to an
hour and a half, if they are reduced fabrics, and for only from half an hour to three
quarters of an hour if they are light fabrics. During any one of these periods care
must be taken to renew the surfaces of contact of the fabric with the bath.
تنم

page_text: At the expiration of the aforesaid periods the fabric is removed from the bath, dried
and carried to a tepid chamber, the temperature of which varies between 25 degrees
and 30 degrees Centigrade. The fabric is left in this chamber for a variable time
which is determined by touch and observation, of the progress of the shrinkage and
craping which are gradually produced. When this effect is obtained to the desired
degree the fabric is removed and then treated for about a quarter of an hour in a
solution of cold carbonate of potash at 10 degrees Baumé.
It is then dried, washed in flowing water, dried again, and finally boiled
with soap.
The boiling with soap can also be effected immediately after the fabric is removed
from the hot chamber, the bath of carbonate of potash being thus dispensed with.
The fabric is after this subjected to the ordinary operations of the industry. For
these various operations the ordinary apparatus employed in the silk industry for
operations of this kind is used.
Dated thin 7th dow of Anvil 1907
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: or Containing Silk for Improving the Appearance of the same.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
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 process of treating fabrics composed of silk
only, or of silk combined with cotton or wool, for the purpose of producing upon the
said fabrics certain effects of shrinkage and elasticity, and thereby giving to these
fabrics an entirely new appearance.
According to the nature of the fabrics to which this treatment is applied, and also
according to modifications in the process which will hereinafter be described, these
effects of shrinkage and elasticity are produced either in a plain form, with convex
effects, or with fleecy effects longitudinally folded and craped.
This process is applicable to any varieties of silk fabric, and especially to fabrics
designed for crapes, English crape immitations, silk handkerchiefs, comforters and the
like and particularly to fabrics designed for goffering.
It is, moreover, applicable not only to pure silk fabrics, but also to mixed fabrics,
such as cotton and silk, wool and silk, the cotton and the wool not being affected.
This process is carried into practice in the following manner.
A cold bath is prepared, which is formed of chloride of zinc or other zinc salts and
water the strength varying, according to the nature of the fabrics that are to be
treated, from 20 degrees to 40 degrees Baumé, weak baths being adapted for light
fabrics, and strong baths for reduced fabrics.
The fabrics are then immersed in this bath, and left therein for from an hour to an
hour and a half, if they are reduced fabrics, and for only from half an hour to three
quarters of an hour if they are light fabrics. During any one of these periods care
must be taken to renew the surfaces of contact of the fabric with the bath.
At the expiration of the aforesaid periods the fabric is removed from the bath,
dried and carried to a tepid chamber, the temperature of which varies between
25 degrees and 30 degrees Centigrade. The fabric is left in this chamber for a
variable time which is determined by touch and observation, of the progress of the
shrinkage and craping which are gradually produced. When this effect is obtained
to the desired degree the fabric is removed and then treated for about a quarter of an
hour in a solution of cold carbonate of potash at 10 degrees Baumé.
It is then dried, washed in flowing water, dried again, and finally boiled
with soap.
The boiling with soap can also be effected immediately after the fabric is removed
from the hot chamber, the bath of carbonate of potash being thus dispensed with.
The fabric is after this subjected to the ordinary operations of the industry. For
these various operations the ordinary apparatus usually employed in the silk industry
for operations of this kind is used.

page_text: Having now particularly described and ascertained the nature of the said invention,
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 :-
First. The process hereinbefore described for treating fabrics composed of or
containing silk, for the purpose specified.
Second. In the process herein before described the employment of chloride of zinc
or other zinc salts.
Third. The new industrial product consisting of a fabric composed of silk or of
ilk mixed with cotton or wool and treated by the process hereinbefore described.
Dated this 2nd day of January 1888.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.