Nitivy Company Limited is the exclusive producer of Polyvinyl Alcohol Synthetic Yarns, manufactured by the Dry Spinning Method.

1) For Twistless Pile Making:

Feather-like Softness and High Absorbency
Specific Effect by Solvron: Twistless Effect for Towel, Bath-Robe, Babywear, Sportswear, etc.

2) For Separation:

Socks, Fishing Net, Sweater, Narrow (knitted) Tape

3) For Improvement of Weavability:

Reinforcement in Fine Yarns/Fluff Binding
Utilization for Wool Fabric

4) Utilization of Remarkable Shrinkage of Solvron

5) For Weftless Felt in Paper Mills:

Making the felt for Paper Mills devoid of Weft.

6) Solvron Sewing Thread:

Tacking thread for sanitary laundry bag, ground cloth, etc.

7) For Ground Cloth in Embroidery

8) Colored Solvron for a marking yarn of panty-hose, tights production

9) For Higher Quality of Raschel Lace:

To create more fancier patterns of Picot/Scallop and to make its separation easier

10) For Ajoure Fabric:

To create fancy weave or pattern by partially dissolving the fabric, especially Check Designs

11) For Special-Pile Fabric:

By Circular-Double or Tricot Machines, possible to create a very interesting and high level Pile-Knit fabric, available for Sport-Jersey and Lady's Garment

12) For Cover-Wrap Application:

To make various fancy yarns

I. Submerge Solvron Directly Into Hot Water:

To ensure quick and even dissolving, heat up water to a needed temperature at first, and then submerge Solvron directly into hot water. If Solvron is placed first in cold water, under tension-free status, and water temperature is raised gradually, Solvron will start shrinking without breaking or dismembering. As the temperature rises to a needed degree, only then will Solvron dissolve away in hot water.

II. Sufficient Bath-Ratio/Stirring, Over-Flowing:

The suitable bath-ratio is 1:30 weightwise. Bath-ratio should be sufficient enough to facilitate prompt dissolution and also to allow free moving of the goods. If too many goods are put in limited volume of water, dissolving will become difficult. Stirring of water is essentional to promote rapid dissolution. And continual over-flowing of water is most desired.

III. Dissolving Time:

It differs greatly depending upon how much and in what status Solvron is used, and therefore is rather difficult to generalize the dissolving time. If Solvron is placed in direct contact with hot water, without being covered or wrapped by some insoluble materials, dissolving is easy and instant. If, however, Solvron is covered or wrapped by insoluble material to the extent of preventing free flow-in-and -out of hot water, dissolvign takes much longer time. Generally speaking, 10 to 20 minutes of initial boiling, followed by secondary boiling** in fresh hot water will ensure dissolving under normal conditions.
(**Secondary Boiling and Rinsing: Solvron does dissolve in hot water, but it does not evaporate away like gas does. Solvorn, before dissolving, will transform into a glue-like solution of PVA, which promptly dissolves away into hot water if the temperature is hot enough. Accordingly, re-boiling in fresh hot water is helpful in washing away PVA residue. Also, to ensure complete removal of PVA residue, it is important to apply thorough rinsing, preferably with warm or hot water. In case PVA residue is left in the object, it will get stiff after drying.

IV. Following Factors Influence on Dissolution. So, Dissolving Conditions Must Be Fixed Considering Into These Factors:

1. a. Dissolving temperature is raised some times depending on the condition of heat-set.
2. b. Tension added at the dissolving process is inclined to make hard to dissolve.
3. c. By twisting, flow-in-and-out of hot water takes more time which require higher treatment temperature and/or longer treatment time.
4. d. Not be influenced by most of chemicals but followings make hard to dissolve and some times make undissolvable: salts like sodium sufate, sodium chloride, alkali like caustic soda (sodium hydroxide), heavy metal like chromium, formalin, reactive dyestuff, etc.