Printing and writing inks formulas
Printing inks can be divided into three groups which are typographic, Flexographic inks and intaglio inks.
Typographic inks for Ink Formula
Typographic inks mostly use in the printing of newspaper, packing materials, books and magazines. It is use in manual and automatic machine presses. This ink can be divided into plate, cylinder and rotary press. Examples are Web press news, half grade half ton, ledger paper black ink and toning blue ink.
Flexographic inks and Ink Formula
The three main types of ink used in flexography are water-based, solvent-based and UV-curable flexography inks. Flexography ink is a key component in creating packaging materials that meet growing demands of manufacturers. Flexo ink must continually adapt as packaging materials change in order to maintain print-ability
Intaglio inks and ink Formula
It has the ability to dry rapidly due to fewer ratios of fats and oils in it. Intaglio inks are thinner rather than other inks.
Photogravure picture black ,copper plate ,steel plate black inks ,black engraving ink without plate are the best examples of Intaglio inks.
Raw materials for printing inks
Oils and chemicals (solvents) are the basic materials used in printing inks.
Linseed oil and ink formula
Linseed oil use in inks, varnishes and also in the paint industry .It is cleaned properly before the use in ink making.
Lithographic varnish and ink formula
It is prepared form pure and fine linseed oil..
China wood oil and ink formula
It is also called ting oil and is used in the formulations of inks as it has the ability to dry quickly .water and alkali have no effect on it.
Soybean oil & ink formula
Soybean oil is widely use in printing inks and is used as the alternative of linseed oil where as its iodine value is 125.It does not dry the the ink quickly.
Mineral oils and ink formula
The mineral oil which is used in inks making formulas is the heavy mineral oil and source is petroleum. These oils are used in cheap inks formulas.
Other oils & ink formula
Rosin oil ,pitch varnish ,artificial oil, castor oil ,fatty acid oils , resin solutions.
Ink solvents and ink formula
Solvents means such a chemicals and non chemicals substances which dissolve the no soluble substances into water and oil. Solvent mix these contents homogeneously. Chemical solvents are acetons ,ethers ,esters ,alcohol ,hydrocarbons and nitroparaffins.
Ketones & ink formula
Acetone is the leading solvent in this group. It is the most significant solvent use in the field of printing inks which is completely dissolve into water whereas it boils at 56.1°c, It can dissolve the oils ,gums ,cellulose and esters with has a great ability to dry the ink rapidly.
Ether for ink formula
It is used in lacquers and inks as a solvent.
Esters for ink formula
which is prepared by organic acid and mostly used in this class are ethyl acetate, Isopropyle , ethyl lactate and butyl acetate.
Alcohols & ink formula
Ethyl and methyl alcohols commonly called as wood alcohols which are specially use in the aniline inks formula as it brings glittering, smoothing and make the ink fine.
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