In both plants, Naini is delighted to have the most up-to-date technology in the paper-making process. With the help of the following equipment, the two machines are capable of generating international standard writing-printing paper:
A) APPROACH FLOW
To ensure clean pulp stock on the paper machine, NPL (PM#1) uses GL&V cleansers and Andritz pressure screens. Noss-make cleansers and pressure screens are available from NTL (PM#2).
B) HEAD BOX
The headbox is one of the most important components of a paper machine, as it ensures proper paper creation and profile. NPL (PM#1) has a state-of-the-art hydraulic headbox from Voith, Germany, called Module Jet. It is also equipped with automatic dilution profiling for accurate GSM and moisture profiles. The headbox in NTL (PM#2) is air-pressurized supplied by Valmet, Finland. It is also equipped with automatic slice control for an accurate profile.
C) TOP FORMER
NTL (PM#2) is equipped with Voith make “Duo Former” that helps in improvement in formation and uniform ash distribution in the sheet of paper. The “two-sidedness” of the paper is also improved with the top former.
D) SHAKING DEVICE
NPL (PM#1) has a wire shaking device, Duoshake from Voith Germany to give better formation, MD/CD ratio of breaking length, and uniform ash distribution.
E) SHOE PRESS
Naini is proud to be the pioneer in installing a shoe press in an agro-based writing-printing paper mill in the country. NTL(PM#2) has a shoe press supplied by PMT Italia and NPL(PM#1) has a shoe press from Gapcon, Germany. The major advantages of a shoe press are better sheet stability on the machine, higher bulk, and uniform moisture profile out of the press section. The steam consumption in dryers also goes down with a shoe press.
F) FILM SIZE PRESS
Film size press is very critical for modern-day machines from the point of view of good printing qualities and dimensional stability. Both the sides of the paper are coated with enzymatic starch prepared in the state-of-the-art size kitchen supplied by BVG, Germany. The Film size press in NPL (PM#1) is supplied by Gapcon, Germany and the one in NTL (PM#2) is supplied by PMT Italia.
NTL (PM#2) has a hot-hard-nip calendar supplied by Voith, Germany, and NPL (PM#1) has a hard-nip calendar from Gapcon, Germany.