Provide complete sets of papermaking chemicals addition systems and services

1. Fast coloring, dyeing system and method of continuous dye addition The method of rapid coloration, dyeing system and continuous addition of dyes provided by our department is based on the advantage that the imported dyes selected have strong affinity for fibers, fast diffusion and no precipitation. , The use of precision metering pumps to add dyes near the net, the use of color analyzer for scientific, accurate evaluation, judgment and control of a method. The most prominent advantages of using this method are: fast color mixing, generally only about 30 minutes; change color fast, only need more than ten minutes, do not need to wash the pool; the color of paper can be scientific, Accurate quality monitoring; less color transitions, no more than half an hour's output. Therefore, when this kind of adding method appeared, it was warmly welcomed by domestic and foreign large, medium and small paper mills, especially colored paper and kraft liner board paper mills, and it was soon adopted.
The difference between this method and the traditional way of adding dyes in the pulp pool is that the color mixing process is short, the time is fast, and the transition color paper is small (ie, the color tone is stable, accurate, and fast) and is not affected by the night light. If this color has been recalled, as long as the opening of the metering pump is remembered, in the normal production, only the metering pump is placed on the adjusted opening, and the paper to be produced is produced. Once the production of the batch of products is completed, only the metering is closed. The pump comes out of the original paper. From the dyeing paper point of view, it is not necessary to wash the pulp tank during production, which is very convenient to use. Since the domestic dyes are not easy to dissolve, they are easy to precipitate, and they are difficult to add continuously. Therefore, we use imported dyes. The dyes are easy to dilute, lightfast (ultraviolet) has particularly high fastness, bright color, and good fiber affinity. Light pollution or easy to control, very suitable for paper, cardboard dyeing and continuous addition. Since all colors consist of the three primary colors of red, yellow, and blue, the dyes we add are also red, yellow, and blue dyes. Most of the yellow color used in leather liner board paper, red and blue use very little. The cost of adding dyes can be accepted by customers. According to the user's requirements for light fastness, environmental protection, and dyeing cost, we will choose different types of dyes to meet the needs of our customers. The added equipment requires only three metering pumps and a colorimeter. Our company is responsible for providing the system equipment and imported dyes and technical services, personnel training. The law adapts to paper varieties:
(1) Culturally-colored paper, such as: writing paper, offset paper, electrostatic copy paper, etc.
(2) Stained cultural paper, such as: color stickers, color electrostatic copy paper, art cardboard, etc.
(3) White toilet paper, napkins, facial tissues and other fabrics to be colored.
(4) Paper products such as colored toilet paper and napkins that need to be dyed.
(5) Kraft noodle linerboard, kraft paper and other wrapping paper.
(6) Other papers and paperboards that need to be adjusted for whiteness and dyeing.
Adapted production scale: multi-variety production.
Regardless of whether it is in the coloring and dyeing, Zhengzhou City Long Cheng Trading Co., Ltd. Paper Chemicals Department, there are mature technologies, methods, means, welcome to all paper manufacturers.

2. Paper and cardboard reinforcement systems At present, printing equipment and box making equipment have achieved high speed and high productivity. Customers have higher and higher requirements for the printability and strength indexes of paper and industrial packaging paperboards, plus straw pulp and a large amount of The recycling of waste paper and the repeated use of waste paper have made the fiber material very short, which directly affects the performance of the product. This has formed a serious contradiction with the customer's requirements. Many papermakers urgently need to increase the dry and wet strength of paper and paperboard by adding chemical additives, improve the performance and strength indexes of paper and paperboard, reduce the consumption of raw materials and production costs, improve product block times and meet the needs of customers. The paper and board enhancement systems provided by our department have been accumulated through many years of practical experience. According to the site conditions, the method of intermittent addition and continuous addition in the slurry tank is adopted. According to the conditions of the addition of papermaking raw materials, auxiliary materials and wet end chemicals, combined with wet-end chemical balance control technology, suitable chemical additives with high quality and high efficiency are selected. Reasonably add points to improve paper and board performance and strength indicators. The performance of the paper mills and the improvement of their strength indicators using the paper, paperboard reinforcements and addition systems of our department are shown in the table.

3. Retention and filtration aid systems Add retention aids to increase the retention of fine fibers and fillers; Reduce the concentration of white water, clean the wet production environment, reduce the pollution load, and reduce the consumption of slurry and auxiliary materials; enhance the filtration rate and improve Speed, reduce breakage; improve paper formation, increase paper whiteness, degree of sizing, smoothness, opacity, and bond strength between layers of paper board, reduce hair loss and powder folding, is the company to reduce the overall cost , an effective way to increase economic efficiency. The retention and filter aid addition systems provided by our department fully take into consideration the characteristics of the retention aids, filter aids single-component, two-component, particulate flocculation systems, and polyion complex systems adopted by the paper industry in the world today. Slurry flow system process conditions and the speed of the paper machine, paper machine type, paper species, auxiliary materials to add the appropriate choice of additives and adding methods, adding amount and adding position. Using the principle of charge balance, on-site dissolution (or on-site dilution), continuous addition, to avoid degradation due to prolonged storage. The addition amount of the additive system is accurate, which can ensure that the retention aids, filter aids and slurry are fully mixed, and the retention aids, filter aids, and pastes and fillers are used immediately after being used to ensure stable and efficient retention and filtration aids. Effect, non-stick cylinder and non-stick net during use.

4. Roller coating impregnation system can adopt some methods with special properties (such as water-repellent agent, oil-repellent agent, dyestuff, softener, peeling agent, adhesive, sizing agent, etc.) by the method of roll coating or impregnation recommended by our department. Roller coating or dipping on the surface of the paper, special treatment of the surface of the paper, giving the paper surface a unique physical and chemical properties, and adding in the pulp because of the added amount, loss, poor effect, high cost or due to add Something of the substance cannot be operated. This method can use the characteristics of multi-cylinder paper machine without adding drying facilities. It is simple to operate and runs smoothly. It only needs to add some few facilities according to the situation on the site. This is a quick way to invest less, produce quick results, and create high value-added products. Our department provides both technical methods for roll coating or impregnation, as well as roll or impregnated chemicals.

5. The spray or spray system spray or spray method takes up less space, can use the existing equipment, just add some spray or shower facilities and can perform performance processing on the paper or paperboard interlayer and paper surface. By spraying or spraying substances with low viscosity, low concentration and small amount of processing on the layers and surfaces of paper or cardboard, the physical and chemical properties of paper or paperboard are improved. The spraying or spraying method can be carried out either in the wet part of the paper machine or in the drying of the paper or cardboard. It is also a way to invest less, produce quick results, and create high value-added products. Our department provides imported spray equipment and technical methods, and also provides and recommends spray or spray chemicals and raw materials.

6. The repulping process of high-strength strong paper has become a key resource of high quality and low cost, with the shortage of timber resources and people's awareness of environmental protection. It has high Wood pulp ratio, but also has a longer plant fiber. Because it uses a permanent wet strength agent, it has brought many difficulties to the processing and utilization of paper mills. Based on its chemical properties, our department has provided an effective method for the reuse of paper mills by utilizing unique repulping and chemical additives. The repulping yield is close to 95%.

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