DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.73058#0121
Print Cleaning.
Another safe way is to lay the print face downward in a sufficiently large vessel,
and gently pour boiling water over it to a depth of one or two inches, and in the course
of an hour or two the dirt will disengage itself.
A third manner of proceeding, answering well when prints are very dirty indeed, is
to go several times, gently but firmly, over the face and back, alternately, with a large
paste-brush charged with common bookbinder's paste reduced to the consistency of cream
by the addition of water. An hour's after-soaking in warm water, and a final application
of the brush charged with tepid water only, effect wonders in the way of cleansing, and
there is moreover by this treatment no danger of injury to the most delicate print. Prints
that are on soft, unsized paper require very cautious treatment, as they readily tear or
burst into holes if roughly handled while wet.
The only bleaching and cleansing agent that the writer has successfully used on
prints of every description, is prepared by a firm of wholesale manufacturing chemists
in Leadenhall Street, London—Messrs. Hodgkinson, Prestons & King.*
* The makers speak of it as follows :—" The principal merit of this fluid is, that it does not, like many bleaching
compounds, contain any insoluble salts. It is a compound of hypochlorous acid, one of the most powerful bleaching
agents known, and an alkaline base which is perfectly soluble in water, and consequently is easily washed out after the
operation of bleaching has been finished. Being in a liquid state, and being miscible with water in all proportions, it is
easy of application ; whilst the perfect elimination of the base by simple washing prevents the action which usually takes
place in the paper after it has been dried, and which is the most prevalent cause of rottenness."
CHAPTER
95
Another safe way is to lay the print face downward in a sufficiently large vessel,
and gently pour boiling water over it to a depth of one or two inches, and in the course
of an hour or two the dirt will disengage itself.
A third manner of proceeding, answering well when prints are very dirty indeed, is
to go several times, gently but firmly, over the face and back, alternately, with a large
paste-brush charged with common bookbinder's paste reduced to the consistency of cream
by the addition of water. An hour's after-soaking in warm water, and a final application
of the brush charged with tepid water only, effect wonders in the way of cleansing, and
there is moreover by this treatment no danger of injury to the most delicate print. Prints
that are on soft, unsized paper require very cautious treatment, as they readily tear or
burst into holes if roughly handled while wet.
The only bleaching and cleansing agent that the writer has successfully used on
prints of every description, is prepared by a firm of wholesale manufacturing chemists
in Leadenhall Street, London—Messrs. Hodgkinson, Prestons & King.*
* The makers speak of it as follows :—" The principal merit of this fluid is, that it does not, like many bleaching
compounds, contain any insoluble salts. It is a compound of hypochlorous acid, one of the most powerful bleaching
agents known, and an alkaline base which is perfectly soluble in water, and consequently is easily washed out after the
operation of bleaching has been finished. Being in a liquid state, and being miscible with water in all proportions, it is
easy of application ; whilst the perfect elimination of the base by simple washing prevents the action which usually takes
place in the paper after it has been dried, and which is the most prevalent cause of rottenness."
CHAPTER
95