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Pulp-and-Paper

VAPCO-LR-50

VAPCO-LR-50 is marketed in the form of a white emulsion, which when diluted with water gives fine emulsion with alkalies, hard water and salts. VAPCO-LR-50 is useful as a sizing agent (Internal & Surface) in Paper Industry.VAPCO-LR-50 is wax size for paper and paper boards. It is a complementary size for use alongwith the rosin size and offers maximum sizing.VAPCO-LR-50 is recommended to use alongwith the rosin to achieve the best result economically upto 45% of the rosin size and 35% of fortified rosin can be used.VAPCO-LR-50 should be added to mixing chest or beater. The recommended dosages are 0.4% to 1% on dry paper basis.

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VC-Size-SS

VC-Size-SS is anionic styrene-acrylic copolymer dispersion. VC-Size-SS is a surface Sizing agent for Size Press & Film Press to improve print-ability & coating hold out.

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VERCOAT-CS-235

VERCOAT-CS-235 is a Calcium Stearate dispersion, which can be used in synthetic lattices, casein or starch coatings. It gives better finish to coated paper. VERCOAT-CS-235 improves flow and leveling characteristics and making possible smooth, ever application. VERCOAT-CS-235 Improves printability and appearance of coated paper/board and reduce cracking problems. It gives better gloss and smoothness. It has negligible effect on the viscosity of coating solution. VERCOAT-CS-235 prevents dusting problems at the super calendars and also reduce fluff problems during printing and slitting operations. VERCOAT-CS-235 can be mixed directly with the coating solution at any convenient point in the preparation of coating solution. VERCOAT-CS-235 must be added after cooking the starch if starch is adhesive.

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VERDET-MDF

VERDET-MDF is suitable defoamer for paper machine. It can be used to control surface foaming as well as the troublesome problem of entrained air in the stock. VERDET-MDF can control foam in stock preparation, in the paper machine system etc. VERDET-MDF gives more cost effective foam control in paper machine system. It can reduce polymer usage, increase production by allowing greater machine speeds, and reduce steam consumption in the dryers.

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VERDET-PDF

VERDET-PDF can easily diluted in cold or hot water. VERDET- PDF is to used after making emulsion of 3-4% concentration.VERDET-PDF is suitable defoamer for pulp and paper mills which can be used at various stage of pulp and paper making operations. VERDET-PDF can be used for alkaline pulp washing & screening. VERDET-PDF is also useful at the ET (Effluent treatment) plant.

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VERDET-SDF

VERDET-SDF is an effective defoamer for chemical pulp production. It contains ingredients which normally do not contribute to resinous deposits in pulp mill washing operations. VERDET-SDF is an effective defoamer for alkaline pulp washing and screening & bleaching process.

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VERFIN-SF-300

VERFIN-SF-300 finds application for surface coating. It is also used for water – proofing of paper & board articles. Being Non-ionic and stable to alkali, VERFIN-SF-300 is perfectly compatible with coating mixtures based on case in and / or Synthetic lattices such as Butakens. VERFIN-SF-300 imparts luster and slight water resistance to coatings.VERFIN-SF-300 should be added after addition of pigment along with the coating solution. Dosage depends of quality of paper. Normally the consumption of VERFIN-SF-300 is 5% on pigment (for Duplex Board) and 2% on pigment (for quality coated paper) or depends on the required Gloss, SOA (Surface Oil Absorption) & smoothness of paper. It also increases whiteness & improve printability of paper & board.

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VERFIX-DFX

VERFIX-DFX is a cationic Dye fixing agent which disperses the dyes and retained with good yield. Some pigments which are difficult to wet or disperse in water, can be easily dispersed in presence of VERFIX-DFX. It increases depth of shades so that the back water of acid dyeing will be almost clear. It can be used for fixation of direct and some other acid dyeing on paper.VERFIX-DFX can be improved poor dyeability of bleached pulp. And it does not affect the absorbency of paper so it is suitable for tissue paper and other unsized paper dyeing with acid dyestuff or pigments.

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VERPAP-AZC

VERPAP-AZC is an insolubilizer for coating and surface sizing formulation. It is an effective cross linking agent suitable for all types of paper and paperboard applications. VERPAP-AZC is completely formaldehyde free, fast curing and reacts with hydroxyl and carboxyl groups. VERPAP-AZC recommended dosage is 2-7% on total dry binder content. VERPAP-AZC is based on carbonate so PH of coating solution before addition of VERPAP-AZC must be higher than 7. VERPAP-AZC should be always added as the last ingredient in the coating solution, after adjusting the PH of the coating solution to 8-9.

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VERPAP-DI

VERPAP-DI is a very powerful deinking agent. It helps in removing various inks, (black/coloured) from cellulose fiber without damaging its chain structure. VERPAP-DI can de-ink both imported waste paper as well as local waste paper effectively to make white paper of the desired quality.VERPAP-DI is recommended to add 0.2 to 0.6% on the weight of the pulp in the pulper for loosening the ink and separation from the pulp fibers. VERPAP-DI is added in Hydrapulper or Breaker beater along with other chemicals like caustic soda, sodium Hypo chloride, sodium silicate, Hydrogen peroxide in required concentration. Percentage of above chemicals depending upon the type of waste paper, type of loading ink characteristics etc.

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