The role and application of alkali resistant penetrant in industry

Alkali resistant penetrant is a surfactant with special properties, which has good alkali resistance and penetration ability. It is widely used in various industries such as textile, printing and dyeing, papermaking, leather, electroplating, and construction. The common functions and uses are introduced as follows:

1、 Textile printing and dyeing industry

1. Pre treatment process: In the pre-treatment process of textile such as desizing, boiling, bleaching, etc., alkali resistant penetrating agents can help various chemical agents quickly penetrate into the fabric fibers, making it easier to remove pulp, impurities, etc., and improving the pre-treatment effect and efficiency. For example, in the desizing process of cotton fabrics, the use of alkali resistant penetrating agents can evenly penetrate the desizing agent, ensuring that starch and other pulp are fully decomposed and removed, providing a good foundation for subsequent dyeing and other processes.

2. Dyeing process: During fabric dyeing, alkali resistant penetrating agents can promote the uniform penetration and adsorption of dyes onto fibers, improving the uniformity and dye uptake of dyeing. For some fibers that need to be dyed under alkaline conditions, such as cotton fabrics dyed with reactive dyes, alkali resistant penetrants can maintain stable penetration performance in strong alkaline environments, allowing the dye to better bind with the fiber and reduce color difference and color distortion.

2、 Paper industry

1. Pulp making process: In the pulp making process of papermaking, alkali resistant penetrating agents can be used in the alkaline pulping process to help chemical agents penetrate into wood fibers, accelerate fiber decomposition and separation, and improve pulp efficiency and quality. At the same time, it can also reduce the surface tension of the alkaline solution, allowing it to better contact with the raw materials and promote the dissolution and removal of lignin.

2. Paper coating: In the process of paper coating, alkali resistant penetrant can be used as an additive in the coating to improve the penetration and adhesion ability of the coating on the surface of the paper, making the coating more uniform and improving the printing adaptability and surface performance of the paper.

3、 Leather industry

1. Hair removal and soaking: In the hair removal and soaking process of leather production, alkali resistant penetrating agents can quickly penetrate the interior of the leather with hair removal agents and chemical agents such as lime, effectively removing hair and epidermal tissue from animal fur, while allowing the leather fibers to moderately expand and loosen, preparing for the subsequent tanning process.

2. Tanning and dyeing: During the tanning and dyeing process, alkali resistant penetrating agents help tanning agents and dyes penetrate evenly into the leather fibers, improving the tanning effect and dyeing quality, making the color of leather more uniform, full, and the texture softer.

4、 Electroplating industry

1. Pre plating treatment: Before electroplating metal workpieces, it is necessary to perform surface treatments such as degreasing and rust removal. Alkali resistant penetrant can work in alkaline degreasing fluids, quickly penetrating into the interior of oil stains and rust layers, peeling them off and dispersing them in the solution, improving the degreasing and rust removal effect, and ensuring the adhesion between the electroplating layer and the metal substrate.

2. Electroplating process: In some alkaline electroplating solutions, alkali resistant penetrating agents can improve the dispersion and coverage ability of the electroplating solution, allowing metal ions to deposit uniformly on the surface of the workpiece, improving the quality and uniformity of the electroplating layer, and reducing coating defects.

5、 Construction industry

1. Concrete additive: Adding alkali resistant penetrant to concrete can improve its impermeability and durability. It can penetrate into the pores and microcracks inside the concrete, fill and seal these defects, prevent the invasion of harmful substances such as moisture and salt, and thus extend the service life of the concrete structure.

2. Exterior wall coating: Used in exterior wall coating, alkali resistant penetrant can enhance the penetration and adhesion ability of the coating to the wall, make the coating better bond with the base wall, improve the weather resistance and alkali resistance of the coating, and prevent problems such as peeling and discoloration of the coating.

6、 Other industries

1. Metal cleaning: In the metal processing industry, it is used to clean oil stains, rust, and impurities on the surface of metals. Alkali resistant penetrant can quickly penetrate into the interior of dirt in alkaline cleaning solution, decompose and remove it, and restore the cleanliness of the metal surface.

2. Industrial cleaning agents: In the cleaning of various industrial equipment and pipelines, alkali resistant penetrating agents can be an important component of cleaning agents, helping to remove dirt, scale, and sediment on the surface of equipment, improving cleaning effectiveness and efficiency.

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