Sizotex 121

Sizotex 121 is a 100% synthetic co-polymer, free from starch. Excellent performance with low add –on. Easy de-sizing without enzyme. Lower dusting in loomshed & eco-friendly.

The growing demand of textile industry has brought with it the need for innovative warp sizing materials. Sizotex 121 is a unique Synthetic Co-Polymer, ideally suitable for all kinds of staple fibres. The high film strength, abrasion resistance and excellent adhesion of Sizotex 121 makes it possible to use about one-half of the add-on required compared to conventional, starch-based recipes. 

Since lower add on results in less shedding on the loom-less frequent cleaning of drop wires, healds and reeds are required. It is easier to weave denser constructions at low size add-on, since there is more air-space in the reed. Yarns sized with Sizotex 121 show excellent weaving performance with few loom stops. Sizotex 121 has excellent size bath stability.



Sizotex-121 has a low viscosity that helps in better penetration. A 10% paste has a viscosity of 9 to 10 seconds in 50 ml ATIRA cup at 90⁰C. This low viscosity is suitable for all types of yarns, including dyed yarns.


Sizotex-121 has an excellent binding strength. Being a 100% synthetic compound, it has very high adhesion strength and very good tackiness, which in turns helps in better binding and improved weaving efficiency.


Since Sizotex-121 is a 100% synthetic compound, there can be stored at elevated temperatures for days without viscosity degradation. Solutions of Sizotex 121 are non-corrosive and are not subject to spoilage.

Film Formation

Sizotex-121 films are thin, transparent, strong and highly flexible. Sizotex 121 is purely a co-polymer and free from starch. Hence even a thin coating of Sizotex 121 forms a continuous film which is highly resistant to abrasion and improves weaving efficiency to greater extent. The uniqueness of this film is its optimal strength and better elongation properties.

Preparation of Sizing paste

Cooking is simple with Sizotex-121. With continuous and preferably vigorous stirring, the required quantity of Sizotex-121 is sprinkled to hot water. Then the suspension is cooked at 130 deg c/ 30 psi and retained for 10 mts before transferring to the storage. This Product is also ideally suitable for open cooking methods.


De-sizing is easy with Sizotex 121 since no enzymes are required. Sizotex 121 can be easily removed by washing in hot water with a small addition of soda ash or caustic soda Iye. It is 100% bio-degradable and eco-friendly.

Typical Analysis

AppearanceWhite to creamish granular powder
Moisture % by mass on dry basis5 % maximum
Ash content % by mass on dry basis0.5 % maximum
pH of 10% Aqueous extract(pH of water used: 7.2)6 to 7
Viscosity of 10%  m/m on dry basis at 85?C solution by using Brookefield DV II+ viscometer at 30 rpm, spindle no 1 in cps100 to 150 cps
Red listed itemsNIL

Visit Us

28, Vivekananda Road,
Chinnavedampatti post,

Weaving Better Relationships