The hottest new surface applicator fills the domes

2022-08-19
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New surface applicators fill the domestic gap

did you know? As the printing industry, the largest user of paper, continues to improve the printing speed and quality, the paper industry puts forward higher requirements for the surface strength of paper. Therefore, the paper must be treated with surface sizing. Most material testing machines in Chinese paper mills mainly test the physical properties of raw materials, finished products and semi-finished products, and use modified starch and polyvinyl alcohol (PVA) as surface sizing agents. However, due to the poor adhesion of modified starch, the paper produced with it is very easy to lose wool and powder during printing, resulting in plate pasting during printing, and PVA has poor water resistance, resulting in low gloss and high price. Foreign paper-making enterprises mostly use polymer lotion surface sizing agents with excellent performance price ratio (hereinafter referred to as new surface sizing agents)

at present, the new surface applicators used by domestic enterprises are basically foreign products. In 2000, the market consumption of domestic surface fertilizer was more than 30000 tons, with a market value of 300million yuan, and maintained a high growth rate. If the domestic new surface applicator can start from one production line, it will replace the imported surface applicator with good quality and reasonable price

the new surface applicator developed by Qingda for low precision Huachuang has been industrialized and tested on a large scale, and the process is completely mature. The products have been tested by China pulp and paper research institute and some well-known papermaking enterprises. In one aspect, they have become a bigger problem, and their indicators have reached the advanced level of similar foreign products. With such high and new technology, China's paper industry will enter a new field

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