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What is the wet strength of paper?

With the development of modern science and technology, the use of paper is more and more extensive, some of which require the action of water, or the application and processing in water. Such as household paper, fruit bag paper, special paper, banknote paper, advertising poster paper, cotton paper, tablecloth paper, industrial filter paper, photographic base paper, tea filter paper, etc. This must give such paper a certain wet strength properties, that is, in the paper manufacturing process or post-processing process to add wet strength agents, so that the paper has a certain wet strength.

The so-called wet strength is that after the finished paper is saturated with water, it generally loses most of its strength, and the remaining strength is called wet strength.

How to choose wet strength agent?

When choosing a wet strength agent, the following factors need to be considered:

1. Effect: The effect of the wet strength agent should be obvious and can be verified by relevant tests

2. Water resistance: The water resistance of the wet strength agent should be good, that is, after washing, soaking and other operations, the paper can still maintain good wet strength.

3. Compatibility: The wet strength agent should be compatible with other paper additives and will not cause significant side effects.

4. Safety: The wet strength agent should be safe, non-toxic or low toxic, and will not cause harm to the human body and the environment

LUDAO wet strength agent

Product Overview:

The product is water soluble, cationic, thermosetting resin. Suitable for the manufacture of a variety of wet strength paper, with high efficiency, suitable for neutral papermaking, damaged paper or waste paper recycling is relatively easy, non-toxic and so on. It can also be used as retention aid of emulsion rosin glue and strengthened rosin glue, synergist of neutral sizing agent, cationic starch modifier to improve the dimensional stability of paper.

Product index

Appearance: yellow viscous liquid

PH value: 3.0-5.0

Viscosity (25℃) : ≤100CPS

Ionic: cationic

Address pain points

Under the condition of high humidity and water immersion, the strength of paper is fast, greatly reduced or even broken, which can not meet the requirements of wet strength.

Product advantage

· Maintain high wet strength and durability of the paper;

· Environmental protection, low chlorine, widely used;

· Help the wet fibers of the paper machine to flocculate and retain;

· Improve the binding force of the paper on the wet end of the paper machine.

Application and effect

· Wide application PH range, non-toxic, treated paper can be used for food packaging, fruit bagging, medical.

· The wet strength of paper is particularly obvious, and the dry strength can also be increased by 20%.

· Improve the water filtration and paper making speed of the pulp, and improve the retention rate of fillers, adhesives and microfibers.

Usage method

· Approximately 5-15kg/t paper.

· The optimum PH is 7.5-8.0.

· Add continuously with metering pump.

· Add intermittently.

Shandong Ludao Energy Technology Co., LTD. - Paper chemical solution supplier

Email: info@sdludao.com

Website: www.sdludao.com