Refining application of coating color paste is the inevitable trend of future development

Refining application of coating color paste is the inevitable trend of future development

Color paste, as the name implies, is a kind of pigment concentrate paste, is the use of different pigments, through the pigment surface treatment, surface wrapping and other technologies, after strict processing technology developed. Due to the different solvents used, the color paste is divided into water-based color paste, oily color paste, water-oil general color paste, etc. According to the different uses of the color paste, it is divided into coating color paste, tape color paste, paper color paste, textile color paste, mechanical color paste, toy color paste, latex product color paste, etc. According to the different tools used in the color paste, people simply divide the color paste into factory color paste and machine color paste. Color paste in nature in conjunction with the dress up of the whole world: small to dress, daily use, toys, etc., to bridges, housing construction, etc., all show colorful colors. The following is a brief analysis of the development of color paste products and future market trends, taking color paste as an example.

Historical overview of color paste

Traditional paint coloring is the use of pigment powder directly added to the paint, or some paint manufacturers simply make the pigment into a slurry, and then added to the paint to color the paint. This has certain drawbacks: such as poor color reproducibility, uneven coloring, due to the lack of professional technology and technology, the pigment particles are relatively coarse, the tinting strength is not high, and the pollution is serious. When added to the coating, the coating will have poor light resistance and weather resistance after film formation, and it is easy to fade and powder.

With the intensification of market competition, the division of labor is getting finer and finer, and the voice of high-end coatings is getting louder and louder. In the 1990 s, domestic color paste manufacturers came into being. At the beginning, there were one or two manufacturers specializing in color paste. In fact, in foreign countries, there were specialized color paste manufacturers in the 1960 s, such as Colaine, Degusa, Hibis, etc, at that time, some domestic paint manufacturers with strong quality awareness began to buy color paste from abroad, but the price was relatively high, such as iron oxide series color paste. At that time, the price was even as high as 100 yuan per kilogram. Later, domestic color paste manufacturers rose and the price dropped relatively, from more than 30 yuan per kilogram to more than 10 yuan per kilogram now. On the one hand, the improvement of technology and equipment, the cost is within the controllable range; on the other hand, the competition is becoming more and more fierce, and some manufacturers have reduced their profits.

In spite of this, the quality of color paste products has improved a lot compared with the beginning, and the varieties have also been improved. There are also one or two color paste manufacturers at the beginning, and now there are 20 or 30, mainly distributed in Jiangsu, Zhejiang, Shanghai, Guangdong and other places.

Market Usage of Color Paste

So far, the domestic paint manufacturers basically popularize the use of color paste. In general small coating fields, the amount of color paste used in a year is conservatively estimated to be about 2000-5000 yuan (in terms of amount), that in medium-sized coating plants is about 5-100000 yuan, and that in large coating plants is about 500000-1 million yuan. The amount of paste used in different paint plants varies greatly. In China, there are about 12000 large and small paint factories, mainly distributed in the Yangtze River Delta. Based on the average color paste 20000 yuan/year used in each coating field, the amount of color paste is about 0.24 billion yuan. In 2006, the total amount of paint in China exceeded 5 million tons, reaching 5.0784 million tons. Based on 30% of the amount of paint, the amount of paint paste per ton is about 157.53 yuan, which is a very conservative data. At present, there are less than 30 domestic color paste factories, including more than 30 imported brand color paste. Due to the limitations of equipment, technology and capital, there are not many real large-scale color paste manufacturers in China, and the demand for color paste in the domestic market is far greater than the output of these manufacturers (in addition to color paste for building coatings, there are also color paste for rubber products, color paste for PVC products and other civil and industrial color paste, the demand for color paste is much greater than that of coatings). The products are mixed and the quality needs to be further improved.

Market Prospect of Color Paste

In terms of the current domestic color paste level, it only reaches the middle and upper level. The domestic demand for color paste is very large, especially the high-end color paste products are even in short supply.

From January to June 2007, according to incomplete statistics, China's production of pigments is about 873123 tons. If all the pigments are processed into color paste, the average color content is 35%, and the color paste is 2494637.1 tons, which will greatly improve the coloring power of pigments, reduce pollution discharge and reduce energy consumption. According to the calculation of 30 color paste manufacturers, each manufacturer produces 10 tons per day on average, 30*10 tons * 6 months * 30 days = 54000 tons. Less than 2.16 per cent of the total. However, in terms of the equipment and technology of the current domestic manufacturers, some manufacturers operate at full capacity and produce less than 10 tons a day. Judging from this data, the current domestic color paste manufacturers are still far from meeting the market demand., That is to say, there are still some manufacturers (civil and industrial) using pigment powder.

With the intensification of market competition, product refinement and specialization is an inevitable trend. The surface decoration of some buildings, daily necessities, toys, etc., or the whole body coloring, the use of color paste, especially high quality color paste, is also An inevitable trend. The market potential of color paste is quite large, and some color paste enterprises are also gradually growing in the competition. The color paste industry is still a sunrise industry in China. On the surface, it seems that the competition is very fierce, but it is only at a low level. The level of simple price exchange. Product quality needs to be improved, color pulp research and development efforts, depth needs to be increased, types need to be improved, color pulp enterprises need to be expanded, restructuring, color pulp brand needs to be established and promoted. To borrow a sentence from Dr. Sun Yat-sen, "The revolution has not yet succeeded, and the color paste manufacturers still need to work hard". The color paste pictures show wonderful moments and spaces, showing a perfect picture. However, the self-improvement and promotion of the color paste itself still has a long way to go!

Market Prospect Analysis of Carbon Black Color Paste

Carbon black paste, is a use of carbon black toner, after surface treatment, wrapping, etc., and through a certain processing technology developed. Widely used in sealant, paper, cable material, color cement, rubber, leather, chemical fiber, paint, ink, wire, cable and other industries. It provides coloring, covering, reinforcement and some special properties. Carbon black paste can be divided into water-based carbon black, oily carbon black and water-oil general-purpose carbon black according to its different meltable base materials. According to its different performance mechanisms, it can be divided into conductive carbon black, carbon black for low rolling resistance and high performance tires, high purity carbon black, special carbon black for industrial rubber products, high pigment carbon black, grafted and modified carbon black, etc.

Carbon black color paste is difficult to disperse among all color pastes. Its huge specific surface area and oil absorption directly affect the color content of carbon black color paste, generally about 30%. At the same time, carbon black color paste is also a relatively large amount of all color paste. If all the traditional enterprises that use carbon black toner to color products and improve their performance are changed to carbon black color paste, I think the amount of carbon black color paste will occupy the first place in all color paste. According to very conservative data, the domestic market demand for carbon black will increase from 630000 tons in 2000 to 810000 tons, 970000 tons and 1.22 million tons in 2005, 2010 and 2015 respectively, with an average increase rate of 4.5. In fact, according to the current domestic use of carbon black, it has far exceeded this increase. However, only a small part of the carbon black toner is used after processing into color paste, and most of them use carbon black toner. It makes enterprises stay in the bad circular economy mode of "high consumption, high emission and low efficiency. If the toner is changed into color paste, it can not only save energy, reduce waste emissions, recycle resources, but also provide economic benefits for enterprises and improve product quality and market competitiveness.

Based on 630000 tons in 2000, the average amount of color paste processed into 30% color content should be: 630000 tons/30% = 200 million tons. In terms of the current production capacity of domestic color paste enterprises, it is still far from enough to produce carbon black color paste at full load 24 hours a day. Moreover, most of the enterprises that use carbon black toner cannot be replaced by color paste with the current domestic and international color paste technology. Such as the tire industry, the current is mainly the use of toner. The tire industry is still the main user of carbon black, and since it was discovered in 1912 that carbon black has a reinforcing effect on rubber, carbon black has gradually become an indispensable raw material for the rubber industry. At present, the consumption of raw materials in the world's rubber industry ranks first in raw rubber, and the second is carbon black. In other words, carbon black has become the largest rubber compounding agent in consumption. The consumption of carbon black generally accounts for 40% to 50% of the rubber consumption, that is to say, in the rubber formulation, 1 part of carbon black is usually used for every 2 parts of rubber. Its demand accounts for 2/3 of the total amount of carbon black. The average annual growth rate of carbon black for tires in the world is 4.2, and the consumption is expected to reach 7.1 million t by 2011. If we can start research on rubber carbon black such as tires and develop carbon black paste that meets the needs of rubber products such as tires and can improve the performance of their products, I think the market potential of this is very huge.

At present, there are not many large-scale color pulp enterprises in China, which are all small and medium-sized enterprises. They lack a high degree of understanding and investment in capital and technology in the research of color pulp, and basically stay at the simple processing and low-level processing level. And the lack of detailed research in major industrial processes. The produced carbon black color paste is generally used in paint, leather, a few latex products, PVC products, anti-static products, paper, art pigments, ink, chemical fiber and so on. Some large industrial projects or industries are not involved.

Study on phthalocyanine blue paste of hydrophilic aluminum foil

The phthalocyanine blue water-based color paste for hydrophilic aluminum foil coloring mainly uses water-soluble epoxy resin, thermosetting acrylic acid and the like as carriers and functional additives to color the surface layer of aluminum foil and other metal sheets (roller coating 220 ℃, 40s, coating film thickness 0.5~0.6um) to decorate and protect the surface layer. It is required to have a certain color, strong acid and alkali resistance, light and weather resistance, corrosion resistance, temperature resistance, etc. The surface of the coating film should have good hydrophilicity and water resistance.

Therefore, it is required that the developed water-based color paste should have certain acid and alkali resistance, light and weather resistance, temperature resistance, solvent resistance, and also need high tinting strength, small fineness, good stability, strong anti-flocculation and other characteristics. In the formulation design, we should not only consider the matching of HLB value, but also analyze the special performance. To this end, the selection of anionic dispersant and organic polymer copolymer and other additives to mix to the selected pigment slurry. And the fineness of the slurry is strictly controlled.

market prospect analysis

In order to save energy and protect the environment, the requirements for high performance, miniaturization and light weight of the heat exchanger of the air conditioner are further increased, and the distance between the fins of the heat exchanger is further reduced (usually less than 1.2mm), which requires the coating film to have higher hydrophilicity. The aluminum foil coloring with phthalocyanine blue paste is a high hydrophilic, corrosion-resistant, odor-free and water-soluble, with all water-based aluminum foil coatings miscible new high quality products. Solving problems for aluminum and aluminum alloy manufacturers and providing reliable quality assurance for end customers. RMCtKBv

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