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What is paper tube glue defoamer and how to use defoamer in the paper tube glue correctly?

What is paper tube glue defoamer and how to use defoamer in the paper tube glue correctly?
The paper tuber adhesive is commonly known as paper tube glue, paper tube glue, etc. It is a special adhesive for making various paper tubes, paper barrels, paper cans and related paper products. Paper, cloth, plastic film, metal foil and other thin soft materials, commonly used paper tube (paper tube) is wound into bundles to make a paper roll core-shaped finished product. These paper tubes are generally rolled and bonded by kraft paper or other raw paper, and the adhesive used is called paper tube glue.
In the production of paper tube glue, PVA, vinyl acetate, polyacrylamide, ethylene glycol, etc. are added in the production. Most of these additives are surfactants, and foams are easily generated when mechanically stirred or subjected to shearing. The presence of foam can have a negative impact on the production process. If the foam is not properly controlled, it will seriously affect the operation of the production and the quality of the product. The addition of paper tube glue defoamer to control the foam is easy to use, easy to operate, and does not change the production process, and is very popular among paper tube glue manufacturers.
In order to make you better understand, I share our customer case here.
So please could you check below details:

Product Code: INVELY-263

Performance characteristics:
  • Good dispersion, good suppression of bubbles;
  • It is suitable for adding and using in viscous and easy foaming system.
paper defoamer

Comparison INVELY-263 and customer sample by air drum in 1% PVA solution

Test condition

  • Temperature: 80 ° C
  • Dosage: drop the tip of the syringe
  • Raw material: 100 ml 1% PVA solution.

Test Method

Wash the air drum test instrument, add 100ml of foaming solution, add defoamer, and then record the foam height at different time periods at the set flow rate (maximum single head flow rate) and temperature. Comparing the defoaming performance of the sample by recording the change in the volume V of the foam over time;

Test Result

defoamer

Conclusion

In 1% PVA solution, the defoaming performance of INVELY-263 is better than customer sample at 80 °C, meeting customer requirements.
Paper tube glue defoamer is made from mineral oil and polyether ester.  It can quickly eliminate the large bubble produced in the production of paper tube glue. It has fast defoaming and foam suppression. The advantages of long, good leveling and low dosage will not affect the product even if it is used excessively.
https://www.linkedin.com/company/china-defoamer
https://www.ywlchemical.com/category/defoamer/
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