ZYTOPLAST is a new generation Modified Corn Starch compound specially formulated with speciality additives for spun yarn sizing. The product has excellent adhesion to polyester, cotton and rayon fiber.

ZYTOPLAST  gives excellent lubricity, flexibility and  abrasion resistance making it an ideal compound for  spun yarn sizing.

ZYTOPLAST is based on modified starches making it easier to desize with normal enzyme technique.



Homogeneous compound Can be used alone or can be blended with unmodified or modified starch to reduce cost. No dusting.
Lower viscosity Better wetting and penetration.
New surface chemistry Excellent adhesion, lower dropping & improved lubricity.
Chemical modification of starch

Stable viscosity, excellent Wetting & lower retrogradation temperature.

Improved solubility

Easily desized with enzymes.

Excellent film formation and compatibility

Improves strength, reduces loss in elongation, allows easy opening and lower dropping on looms.

Appearance :  Light white colour powder
Solid content :  96 ± 2%
Solubility :  Easily soluble in hot water above 85°C
Chemical composition :  Blend of additives with starch.


ZYTOPLAST  can be cooked from 8% to 17% concentration depending on sizing requirement. The product can work by itself as a single product for sizing 100% polyester spun yarn, polyester cotton and polyester-rayon blends along with 100% cotton from 80’s count to 30’s count. For lower count if cost is a consideration and for slower speed looms, one can blend ZYTOPLAST with locally available unmodified starch in ratio 67/33 or 50/50 or 33/67 depending on quality of size required.


Desizing of this compound is relatively easy. Standard enzyme technique should be followed for complete removal.

Add-on % of this product should be decided by user taking into consideration gain in strength required for maintaining reasonable loss in elongation and surface protection required for controlling hairiness of the final yarn. The optimum % pick-up varies from Mill to Mill and from Sort to Sort depending on yarn quality and types and speed of the looms used.

cook procedure

Taked water and add ZYTOPLAST powder in a cooking vessel. Stir for 10 minutes and start the cooking by injecting steam. One can cook in open or closed vessel at atmospheric or high pressure conditions. The time can vary from 60 minutes to 30 minutes depending on heating profile and final temperature achieved.

The cooked solution is generally stable in viscosity and small drop may be seen over extended storage beyond 2-4 hours. The cooked size solution should be maintained at 85 – 90° C in storage vessel with indirect heating. Concentration should be monitored by refractometer for routine control along with viscosity cup for maintaining % concentration and viscosity at a given temperature.

  • Do not store ZYTOPLAST bags above 50°C or in direct sun.
  • Stable for 12 months if stored in a shade at room temperature.



R-3000-NAJ is a New Generation Polymer designed for Zero Twist Filament Yarn Sizing.  It replaces Acrylic Polymer solution.R-3000-NAJ reduces the percentages of size add-on to 3.5 – 7%, depending on the yarn and the type of looms with exceptionally good weaving performance.

R-3000-NAJ is a 100% solid resin product available in granular form. It dissolves easily in hot water and hence very easy for desizing.

Features Benefits
Structure with perfect combination of
Polar & non-polar groups
Exceptional adhesion to polyester surface.
Good Compatibility Compatible with size mix preparation.
Granular form User convenience.
Exceptional cohesive and adhesive
Stronger binding at low add on percentage. Suitable for both waterjet and airjet looms.
High molecular weight Non-blocking character of size film under high temperature & humidity.

Physical Form     :    Solid granules
Diluent                :    Water
Solid content       :    98 + 2%
Nature                :    Anionic


A typical recipe to size polyester filament yarns is as follows:

R-3000-NAJ 10kg.
Water (demineralized water or soft water,
total dissolved solids of soft water should be low)  
90 kg.     
Total weight 100 kg.
Note : Solid content of recipe is:

Solid x 100
                               Total   Weight



  1. Take 70% of the total water used in the recipe.  Start heating and bring it close to boiling.
  2. Addition of R-3000-NAJ should be spread over 20-30 minutes, after the temp. has reached 90°C.   This ensures easy solubilization.  Do not add all the powder at one time.
  3. Heat further for 1 to 2 hours to dissolve R-3000-NAJ completely.
  4. Part of the water which evaporated during heating should be replaced by adding equivalent amount of water.
  5. Also add the remaining 30% of the water.  This addition of water will bring down the temperature to 50-55°C.
  6. Allow it to cool to 30-35°C and then start sizing.
  7. One can use lubricants & antistatic additives.

The size add-on expected with normal machine conditions is between 4 to 4.5%. One may change the level of water, depending on wet pick-up, to maintain final size add-on between 3.5 to 7% as per needs.


  • Keep the bags of R-3000-NAJ in cool shade. Do not keep it in hot Sun or at a temperature higher than 40°C.
  • In case the bags are open and are intended to be stored for a longer time, ensure to tie and seal the mouth to avoid moisture contact.



Z-3000-ACP is fully compatible with starch and improves the properties of starch for superior weaving.Z-3000-ACP is completely water soluble. It improves flexibility, abrasion resistance, smoothness of the yarn and gain in strength.

Features Benefits
Polymeric Structure Improves abrasion resistance and the cohesive index of the sized yarn which are important parameters for higher weaving efficiency.
Low Viscosity Starch recipe gives the sizer Lowest Viscosity with highest starch/polymer concentration improving sizing of heavy reed/pick construction sorts.
Good Compatibility Gives very smooth film due to its compatibility with starch.
Reinforcing Nature The higher film strength and abrasion resistance of the starch film will result in lower droppings of size film on the loom during weaving.

	Solid content   	: 25 ± 1.5%
	pH 	                : 6.5 to 7.5
	Viscosity            : 5 - 10 CP

The best performance is seen with 50 kg starch and 4 to 5 kg of Z-3000-ACP. At this concentration, Z-3000-ACP gives best abrasion resistance and strength of the starch film. To improve the strength and abrasion resistance further, increase the concentration of Z-3000-ACP along with RAN-1000/PVA or any other polymeric binder for higher speed (650-900 rpm) Airjet Looms.

Take desired level of water and add starch while stirring. Add Z-3000-ACP along with other ingredients and transfer to the pressure cooker. Heat it till the starch is completely cooked and degelatinized. Add softener to the above mixture and transfer to the sizing box.


Store the carboys at room temperature in a shade.
The minimum shelf-life of  Z-3000-ACP is six months.