E-mail :sales@ssplgroup.in, Website : www.ssplgroup.in

PAPER INDUSTRY										
CATIONIC STARCH	
CATSTAR - 450

INTRODUCTION

"CATSTAR-450" is a cationic starch, especially developed for use in the wet end in papermaking. It is from the house having unrivaled experience in the field of manufacture and supply other grade of starches.  Its wet end application intensifies following:

		- Improved retention of fines and fillers,
		- Strength improvement due to additional fiber to fiber bond                         
		- Better sheet formation coupled with better drainage,

PRODUCT DESCRIPTION

“CATSTAR-450” has a cationic charge attached to it, which is done by reaction with quaternary salts. Varying level of charge is attached by controlling the d.s. The product is equally effective in acid, neutral or alkaline papermaking.

	Name			Degree of Substitution*		Nitrogen Content
	CATSTAR 450			0.045				       0.39 %

* A D.S. of 0.045 indicates an average of 45 cationic constituent for 1000 anhydro glucose units. For CATSTAR, D.S. can be calculated as below:

     		       162 * N%
 	D.S. =  --------------------------,  		where M= 14 = Mol. Wt. of Nitrogen, and
		   100*M - (N% *151)                                        151= Mol. Wt. of cationic group

HOW  CATSTAR-450 WORKS IN PAPERMAKING:

A cationic starch can be represented by following chemical formula:
				       +               _
	St - O - CH2 - CHOH - CH2 - N  (CH3)3 Cl 

Papermaking furnish mainly consists of constituents which usually have a slight anionic charge available for electrochemical and surface interactions with added polymers. CATSTAR-450 contains quaternary amino groups that act as cationic charge carrier. CATSTAR-450 will adsorb to cellulose and pigments, induce patch-type and bridging flocculation and strengthen the bonding between furnish components.

The strengthening effect of CATSTAR-450 is much greater in a filled sheet with high filler level. This is because of the effect of the starch as a  mucilage or lubricant. When the filler particle is surrounded by cationic starch, the local friction between the filler particle and fiber is reduced and slipping occurs. Thus local stress concentrations are decreased and breaking of water meniscus does not occur. This results in better sheet consolidation and bonding, as shown in sketch:

										

E-mail :sales@ssplgroup.in, Website : www.ssplgroup.in

CATSTAR - 450

	
	without cationic starch				with cationic starch

					   Fiber						

						Filler

	Development of stress during drying and effect of cationic starch

DOSAGE

3 to 5 Kg./Ton of paper, depending upon the paper making system. 

BROAD TECHNICAL SPECIFICATIONS

Source / Appearance			: Maize / Fine, white, odourless, dry powder. 
Moisture				: Less than 12%
Size of granules			: Passes 85 mesh	
pH of 10 % aqueous solution		: 6 - 7
Solubility in water			: Soluble when cooked
Ash (Dry solid basis)			: less than 1.5 %
Character				: Cationic 
Nitrogen Content			: Up to 0.39 %
Viscosity (Brookfield) 5% at 50ºC	: 500 CPS ±5% 
Air Porosity at 100 ML of Air                 : 20-24 Sec 
Whiteness                                           : 86-88%

PREPARATION FOR DESIRED RESULTS

Prepare a suspension (free of lumps) of 8-15% in fresh cold water by stirring. Heat to 95 °C & keep under mild stirring for 20-30 minutes. Dilute the suspension as required.      

AVAILABLE PACKING 

It is available in 25 Kg. / 50 Kg. (or as per request) Export standard HDPE bags with inner liner.

HANDLING, STORAGE AND SAMPLING
 
a. Do not use hooks, drag the bags on truck or any other platform.
b. Make sure that unloading labour have clean hands and heads covered with clean cloth/cap.
c. Bags should be stored on clean platform, kept covered with clean piece of tarpaulin. Also ensure that the storage area is dry, covered, away from humid conditions, hazardous, explosive and   aromatic chemicals.