Improvements in the Manufacture or Treatment of Paper Used for Ornamental Printing, Wall Decorations, and for other Purposes.
Year: 1899

page_text: Improvements in the Manufacture or Treatment of Paper Used for
Ornamental Printing, Wall Decorations, and for other Purposes.
I, THOMAS CONs, of Severn Villa, St. John's Lane, Totterdown, Bristol, in
the County of Gloucester, Foreman Gelatiner and Show Card Mounter, dụ
hereby declare the nature of this invention to be as follows:-
This invention relates to the manufacture of paper used for enamel, chromo,
and other printing as well as to papers used for decorating rooms, advertisement
tablets, show cards, and the like; in fact to any paper which is used for printing
or writing upon. It consists in so treating the paper either during or after its
manufacture that matter written or printed upon it will not wash off when
water or detergents are applied.
Slight modifications in the order of the operation may be adopted without
departing from my invention but in general the process may be said to consist
of first gelatinizing the paper either before or after printing, and then treating
it with a solution of formaldehyde (CH20). Thus paper manufactured and printed
upon may be gelatinized, then dried, and submitted to the formaldehyde treat-
ment. On the paper may be gelatinized during manufacture and afterwards
treated with the formaldehyde.
It is an advantage in printing papers to secure that not only the printed matter
but the surface of the paper itself will not wash off. In such cases I obtain a
surface by the use of white enamel which is fixed to the paper by means of
gelatine. This description of paper is specially suitable for colour printing and
can be subjected to the formaldehyde treatment either before or after being
printed upon.
In all cases the formaldehyde treatment is preceded by the application of
gelatine or equivalent size. In some cases, glycerine, gelatine or ox-gall may
be added to the formaldehyde.
Papers manufactured and treated in this manner may be used for writing on
with the certainty that the written matter cannot be erased; in like manner
architectural, and other designs, and pictures executed upon paper of this descrip-
tion may be considered as permanently fixed.
Decorative wall papers, papers used in book binding, advertisement tablets,
show cards and the like may be washed frequently without injuring the tone.
of the colour or the delicate texture of the surface.
The formaldehyde may be used in any suitable proportions, but in general I
make a 40% solution of formaldehyde and mix one measure of this with five of
water.

page_text: Improvements in the Manufacture or Treatment of Paper Used for
Ornamental Printing, Wall Decorations, and for other Purposes.
I, THOMAS Coxx. of Severn Villa, St. John's Lane. Totterdown, Bristol, in
the County of Gloucester, Foreman Gelatiner and Show Card Mounter, 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 the manufacture of paper used for chromo,, and other
printing, as well as to papers used for decorating rooms, advertisement tablets,
show cards and the like; in fact to any paper which is used for printing or
writing upon. It consists in so treating the paper after its manufacture, that
matter written or printed upon it will not wash off when water or detergents are
applied.
Slight modifications in the order of the operations may be adopted without
departing from my invention but in general the process may be said to consist
of first gelatinizing the paper either before or after printing, and then treating
it with a solution of formaldehyde (CHO). Thus paper manufactured and printed
upon may be gelatinized, then dried and submitted to the formaldehyde treat-
ment.
It is an advantage in printing papers to secure that not only the printed matter
but the surface of the paper itself will not wash off. In such cases I obtain a
surface by the use of white enamel which is fixed to the paper by means of
gelatine. This description of paper is specially suitable for colour printing and
can be subjected. to the formaldehyde treatment either before or after being
printed upon.
In all cases the formaldehyde treatment is preceded by the application of
gelatine or equivalent size, this forming an essential feature of my invention.
In some cases glycerine or ox-gall may be added to the formaldehyde.
Papers manufactured and treated in this manner may be used for writing on
with the certainty that the written matter cannot be erased; in like manner
architectural, and other designs and pictures executed upon paper of this descrip-
tion may be considered as permanently fixed.
Decorative wall papers, papers used in book binding, fancy box making, adver-
ment tablets, show cards, and the like, may be washed frequently without injuring
the tone of the colour or the delicate texture of the surface.
The formaldehyde may be used in any suitable proportions but in general I
prefer a 40% solution of formaldehyde and mix one part with five of water.
The gelatine or size may be applied in the usual manner either before or
after printing upon, and the formaldehyde solution may afterwards be applied
- either by passing the paper through it, or by brushing the solution upon either
the front or back of the paper.
When an enamelled surface is required zinc oxide, or white enamel together
with gelatine or size is applied in any suitable and convenient manner; the mode
of application forming in fact no feature of this invention.
The process of gelatinizing the paper consists in either passing it through
or brushing upon its surface a thin solution of gelatine. When white enamel or
oxide of zinc is used it is previously mixed with this solution in the proportion
of about 10 lbs. of white enamel and lb. of gelatine to 4 quarts of water, but
it will be understood that these proportions may be varied to suit the require-
ments of each weight and description of paper. The white enamel employed is

page_text: tho well known article of commerce manufactured and sold to paper manu-
facturers.
When glycerine and ox-gall are employed about 6 ozs. of the former and 4 ozs.
of the latter are mixed with 5 quarts water and 1 quart formaldehyde.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
:
:
1. The process of treating, printing, decorative and other papers, for the
purpose of giving them a waterproof surface, which enables them to be washed
without injuring any matter printed or otherwise impressed thereon, which
consists in first gelatinizing the paper and then treating it with a solution of
formaldehyde, substantially. as described.
2. The process of treating printing, decorative, and other papers for the
purpose of giving them a waterproof surface which enables them to be washed
without injuring any matter printed or otherwise impressed thereon, which
consists in first gelatinizing the paper, then printing or otherwise impressing upon
it the matter required, and finally treating it with a solution of formaldehyde,
substantially as described.
3. The process of treating printing, decorative, and other papers for the
purpose of giving them a waterproof surface which enables them to be washed
without injuring any matter printed or otherwise impressed thereon, which
consists in first gelatinizing and then treating the paper with a solution of
formaldehyde in such manner as to leave it suitable for being printed or written
upon, substantially as described.
!
4. The process of treating paper for the purpose of obtaining a washable surface
which consists in first applying white enamel and gelatine to the surface and then
applying a solution of formaldehyde to the same, substantially as described.
*Dated this 31st day of October
WILLIAM J. MUNDEN,
75, Chancery Lane, Agent for the Applicant.