An Improvement in what is commonly called Dry Soap or Soap- powder and intended for use for certain purposes.
Year: 1892

page_text: Date of Application, 7th Sept., 1892-Accepted, 8th Oct., 1892
COMPLETE SPECIFICATION.
An Improvement in what is commonly called Dry Soap or Soap-
powder and intended for use for certain purposes.
We, WILLIAM HENRY HORTON of Prussia Terrace, Langham Road, Bowdon,
in the County of Chester, Chemical and Colour Manufacturer, and EDWARD
MANDELL TAYLOR of Cuckoo Nest, Polefield, Prestwich, in the County of
Lancaster, Manufacturing 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:—
Our invention relates to what is commonly called dry soap or soap-powder and
intended for washing clothes and table-linen and for other purposes in which it is
necessary or desirable that the goods or articles washed should present a white or
"blued" appearance.
Hitherto in the washing, whitening or bleaching of the clothes and other articles
or goods above mentioned it has been necessary in order that the clothes and other
articles or goods may present the necessary or desirable white or " blued"
appearance to "blue" or pass or rinse the clothes and other articles or goods
through or in water in which some bluing material is suspended or dissolved after
they have been washed, and the performance of these two operations has entailed
considerable labour and since it has been impossible to regulate with precision the
amount of bluing material employed it has been impossible to ensure either
uniformity in the result of the treatment of the goods or articles or economy in the
use of the bluing material.
The object of our invention is to enable goods or articles such as are mentioned
above to be washed and "blued" in one operation so that the labour and some of
the expense involved in "bluing" the goods or articles by an operation subsequent
to washing may be avoided and so that uniformity in the result of the washing
and "bluing "processes may be attained.
According to our invention we mix a suitable proportion of any suitable bluing
material or substance with dry soap or soap-powder and so cause the goods or
articles in the washing of which the said dry soap or soap-powder is employed to
be "blued" to the extent necessary to ensure the requisite white or "blued
appearance of such goods or articles while they are being washed.
"
When goods or articles have been washed by means of dry soap or soap-powder
prepared in accordance with our invention, they are rinsed with water in order
that the soap and dirt may be fully removed therefrom as is usual in washing with
dry soap or soap powder such as has been hitherto employed.
The bluing substance or material to be mixed with dry soap or soap-powder in
accordance with our invention must be such as will not be injuriously affected by
the substances of which the dry soap or soap-powder with which it is to be mixed
may be composed but any bluing substance or material whether soluble or insoluble
or solid or liquid which is not injuriously affected by the ingredients of the dry
soap or soap-powder may be used and the said bluing substance or material may
be added at any suitable stage in the manufacture of dry soap or soap-powder or
when the manufacture of the dry soap or soap-powder is completed.
"
We find by experiment that added to dry soap or soap powder as ordinarily
sold, five per cent. of any commercial ultramarine blue of fair quality, or ten per cent.
of "Reckitt's blue as ordinarily sold enables satisfactory results to be produced.
The proportions of bluing substance or material to be used will depend upon the
bluing power or purity of the bluing substance or material. The blue and the dry
soap or soap-powder must be thoroughly mixed together.
By our invention we render unnecessary the separate operation of "bluing"

page_text: clothes and goods or articles after they have been washed and render it possible
to regulate to a greater extent than has hitherto been possible the amount of blue
used in the treatment of clothes and other goods or articles. Our invention thus
results in a great saving of labour and enables some of the cost of bluing material
ordinarily wasted to be saved..
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
"
In dry soap or soap-powder intended for washing clothes and table-linen and for
other purposes in which it is necessary or desirable that the goods or articles
washed should present a white or "blued
appearance, a bluing substance or
material mixed with such dry soap or soap-powder substantially as hereinbefore
described for the purpose of enabling the clothes and table-linen or other goods or
articles washed therewith to be "blued" while they are being washed, so that' the
subsequent bluing process hitherto necessary may be dispensed with.
Dated this Sixth day of September 1892
HOWARD
CHEETHAM,.
Manchester, Agent to the Applicants...