Improvements in Dyeing Cotton and other Textile Fabrics.
Year: 1892

page_text: Date of Application, 1st Apr., 1892
Complete Specification Left, 17th Dec., 1892-Accepted, 21st Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in Dyeing Cotton and other Textile Fabrics.
We, THOMAS HOYLE AND SONS LIMITED, of Mayfield Print Works,
Manchester, in the County of Lancaster, Calico Printers, and WILLIAM
MORELL NEILD, a Director of the said Company, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improvements in dyeing textile fabrics with indigo
particularly to dyeing what are known as heavy cotton cloths and the chief object
of the improvements is to effect a saving in the quantity of indigo used in the
dyeing process.
We attain this object according to our improvements by passing the fabric prior
to the dyeing operation through a back starching or other suitable machine in
which the fabric is sized or starched upon one side. The fabric thus treated is
subsequently dyed with indigo by running it through the dye beck as usual or in
any other convenient way and as the size or starch on the back of the fabric
partially prevents the indigo from penetrating the back a material saving in indigo
is effected, while at the same time the face of the fabric is dyed a good solid
colour.
Dated this 31st day of March 1892
H. B. BARLOW,
Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in Dyeing Cotton and other Textile Fabrics.
We, THOMAS HOYLE AND SONS LIMITED, of Mayfield Print Works,
Manchester, in the County of Lancaster, Calico Printers, and WILLIAM
MORELL NEILD, a Director of the said Company, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement :-
This invention relates to improvements in dyeing textile fabrics with indigo
particularly to dyeing what are known as heavy cotton cloths and the chief object
of the improvements is to effect a saving in the quantity of indigo used in the
dyeing process.
We attain this object according to our improvements by passing the fabric prior
to the dyeing operation through a back starching or other suitable machine in
which the fabric is sized or starched upon one side. The fabric thus treated is
subsequently dyed with indigo by running it through the dye beck as usual and as
the size or starch on the back of the fabric partially prevents the indigo from
penetrating the back a material saving in indigo is effected, while at the same time
the face of the fabric is dyed a good solid colour.
We prefer to dye two pieces simultaneously the pieces being brought into
contact at the first pair of feed rollers and lying back to back that is to say with
the sized or starched sides in contact and the unstarched sides outward and exposed
to the action of the dye as they pass over and under the guide rollers in the beck.
We then run the two pieces through a washer, and subsequently separate them
after which they are dried in the usual manner.

page_text: 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 :-
1. The herein described improvements in dyeing textile fabrics with indigo, the
essential feature of which improvements consists in sizing or starching said fabrics
upon one side only prior to dyeing the same, whereby during the dyeing operation
the face or unstarched side is dyed a good solid colour but the back or starched
side is only partially penetrated by the indigo and consequently a considerable
saving in indigo is effected.
2. A textile fabric dyed with indigo a solid colour on one side only substantially
in the manner and for the purposes specified.
Dated this 16th day of December 1892.
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicants.