LACQUERS
The dispersion of cellulose derivatives, resins, and plasticizers in solvents and diluents is generally known as lacquers.
Such as dispersion dries upon by evaporation of its volatile constituents, and provides protective as well as decorative coating. On drying, they give a tough, durable and glossy coating. They also provide moisture – heat, and rub-resistant film. Lacquers may be regarded as modified from of spirit varnish that gives a transparent film. The lacquer added with a pigment is called pigmented lacquer or lacquer enamel.
A wear-resistant lacquer is added to the image areas during the development of additive pre-sensitized plates.
Lacquers are used in some screen-printing inks.
Used as coating materials for papers, book and magazine covers, labels, annual reports, and all sorts of product brochures and packaging materials. Nitrocellulose lacquers are commonly used and they provide good gloss and protection.
Varnish, solvent, and other additives required for giving a proper performance and also defined as the mixture of all printing ink ingredients except the pigment.
German goldsmith Johann Gutenberg (1398 to 1468) was an inventor of the printing process. He was started his career in the small age of 13 years (1411) with his father. He was learning to manufacture the gold coins.During the learning process of manufacturing gold coin, he got an idea to get an impression on paper. Now that was the turning point of the invention.
It was the most important inventions in the history of humankind of fifteenth century (around 1448). His invention made possible the spread of knowledge to the common man. Before his invention most of the books were written by the hand!
Johann Gutenberg was lost everything in the journey of this invention. He is not only the inventor of the printing machinery, but he is the pioneer to help to spread the knowledge worldwide.
http://lemelson.mit.edu/resources/johann-gutenberg
How much is the printing industry worldwide ?
At the end of year 2018 the industry’s yearly turnover was $980* billion i.e. 98000* crores rupees as Indian currency. (*Figures can be varied as the source from the internet)
How and when the printing technology was started in India?
Printing industry first entered India from Goa. St. Ignatius of Loyola, in 1556, Father Gasper Caleza speaks of a ship carrying a printing press setting sail for Abyssinia from Portugal, to helping missionary work.
Started our journey in 1986 with Screen Printing, and continue developing with innovations like four color CMYK Printing in this type of manual/hand print process. Also print on any material and surface like Metal, Plastic, Acrylic, Glass and much more. We were also famous for the stickers gumming those decades.
