The Curie Waste Paper Recycling Technology Research Institute in Wuhan has developed several new products, including:
First, CWC-type waste paper efficient deinking agent. This product has obtained national patent. It is a white solid powder, with a dry waste paper consumption of 2%. When deinking, it can be used at normal temperature without heating water. Adding 2% deinking agent to the deinking of waste newsprint, no need to add other chemical products; also use 2% deinking agent, plus a small amount of caustic soda for domestic and foreign books, pictorials, magazines, computer printing paper and other waste pulp. PH value. The deinking method is very simple, that is, the deinked pulp can be obtained by using the normal temperature water and disintegrating in a high-concentration pulper for 30 minutes to obtain no ink spots. The deinking agent has a low selling price, a small amount, no steam, and easy operation, and the ton slurry cost is reduced by 30% to 40% compared with the conventional method.
Second, the paper is white liquor. It is a purple solution, soluble in water, and has excellent color strength in pulp and paint. The amount of pulp per ton is only 100-150ml, whiteness can be increased by 5%-10%, the amount of brightener can be reduced, or no brightener can be used, and the cost per ton of pulp can be reduced by about 30 yuan. It is especially suitable for products that are not allowed to use brighteners, such as cigarette paper and toilet paper.
Third, neutral rosin. It is a translucent rosin color, with a pH of 7-7.5, a solids content of 50%, and no dispersant. When no foam is produced, it can be dispersed into an emulsion only by stirring in hot water of 60°C or more. No need for spray emulsification, the operation is extremely convenient. According to the needs of different types of paper, the amount of sizing is between 0.8% and 1.4%. The cost can be reduced by 20%-30% compared to the commonly used conventional rosin gum or dispersible rosin gum.
First, CWC-type waste paper efficient deinking agent. This product has obtained national patent. It is a white solid powder, with a dry waste paper consumption of 2%. When deinking, it can be used at normal temperature without heating water. Adding 2% deinking agent to the deinking of waste newsprint, no need to add other chemical products; also use 2% deinking agent, plus a small amount of caustic soda for domestic and foreign books, pictorials, magazines, computer printing paper and other waste pulp. PH value. The deinking method is very simple, that is, the deinked pulp can be obtained by using the normal temperature water and disintegrating in a high-concentration pulper for 30 minutes to obtain no ink spots. The deinking agent has a low selling price, a small amount, no steam, and easy operation, and the ton slurry cost is reduced by 30% to 40% compared with the conventional method.
Second, the paper is white liquor. It is a purple solution, soluble in water, and has excellent color strength in pulp and paint. The amount of pulp per ton is only 100-150ml, whiteness can be increased by 5%-10%, the amount of brightener can be reduced, or no brightener can be used, and the cost per ton of pulp can be reduced by about 30 yuan. It is especially suitable for products that are not allowed to use brighteners, such as cigarette paper and toilet paper.
Third, neutral rosin. It is a translucent rosin color, with a pH of 7-7.5, a solids content of 50%, and no dispersant. When no foam is produced, it can be dispersed into an emulsion only by stirring in hot water of 60°C or more. No need for spray emulsification, the operation is extremely convenient. According to the needs of different types of paper, the amount of sizing is between 0.8% and 1.4%. The cost can be reduced by 20%-30% compared to the commonly used conventional rosin gum or dispersible rosin gum.
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