Phosphate-free detergent and production method thereof

Abstract

The invention discloses a formula of phosphate-free detergent. The phosphate-free detergent is prepared from 150-170 parts of sodium dodecyl benzene sulfonate, 185-220 parts of light sodium carbonate, 95-115 parts of anhydrous sodium metasilicate, 32-46 parts of acrylic acid-maleic acid copolymer sodium salt, 15-28 parts of disodium ethylenediamine tetraacetate, 230-270 parts of alkyl modified dicarboxylate polymers, 1-3 parts of a fluorescent whitening agent, 145-170 parts of anhydrous sodium sulphate, 20-40 parts of fatty alcohol-polyoxyethylene ether AEO-3, 30-50 parts of fatty alcohol-polyoxyethylene ether AEO-9 and 1-2 parts of lemon essence. The phosphate-free detergent of the formula can effectively overcome the defect of a phosphate-substituted additive of existing phosphate-free detergent, and chelate most calcium, magnesium and iron ions in water, the effect is far better than that of a current 4A zeolite system, and the phosphate-free detergent has the advantages of being good in hard water resistance, capable of being dissolved fast, high in detergency, mild, free of stimulation and the like; moreover, the price of the phosphate-substituted additive in the phosphate-free detergent of the formula is lower than that of the 4A zeolite system, the phosphate-substituted additive is convenient to use and popularize on a large scale, and is the new direction of detergent phosphate-free additives in the future.

Description

technical field [0001] The invention relates to a phosphorus-free washing powder, which belongs to the field of daily chemical industry. Background technique [0002] Washing powder is our daily necessities. Washing powder is divided into phosphorus-containing washing powder and phosphorus-free washing powder. Phosphorus-containing washing powder uses phosphate as the main auxiliary agent, and phosphorus is easy to cause eutrophication of environmental water bodies, thereby destroying water quality. polluted environment. Phosphorus-free washing powder does not have this shortcoming, which is beneficial to the protection of the water body environment. For the health of our living environment, it is recommended to use phosphorus-free washing powder. The phosphorus-substituting additives in the current phosphorus-free laundry detergent are basically 4A zeolite system. The biggest disadvantage of 4A zeolite is that it is insoluble in water, resulting in low efficiency of chela...

AI Technical Summary

Problems solved by technology

The phosphorus-substituting additives in the current phosphorus-free laundry detergent are basically 4A zeolite system. The biggest disadvantage of 4A zeolite is that it is insoluble in water, resulting in low efficiency of chelating calcium and magnesium ions in water, and may also cause damage to some washed fabrics.

In addition, the 4A zeolite has a slow exchange rate for magnesium ions in water, and high-priced alkaline additives need to be added to make up for it, which leads to a high cost of this phosphorus-free washing powder and is difficult to promote and use

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