Ordinary washing powder formula and production process

Individual washing powder General laundry powder [alias] washing powder [property] white hollow particles, free flow, low apparent density, good water solubility, weakly alkaline aqueous solution, good foaming and decontamination. 【Reference formula】The important ingredients are nominal active agent, auxiliary agent and other additives. The nominal active agent may be a single anionic nominal active agent, or a combination of anionic and nonionic nominal active agents. The use of compounding can not only improve the cleaning power of the washing powder, but also reduce the amount of the nominal active agent and reduce the cost. Commonly used anionic nominal active agents are sodium linear alkyl benzene sulfonates (LAs), sodium alpha alkenyl sulfonates (AOS), sodium secondary alkyl sulfonates (SAS), and the like. Non-ionic nominal active agents often use fatty alcohol polyoxyethylene ether (AEOg.AE07), commonly used additives are sodium tripolyphosphate, sodium carbonate, sodium silicate, sodium sulfate and zeolite. Sodium tripolyphosphate (STPP), commonly known as pentasodium, has excellent performance, but its use has been limited or prohibited in some areas because of its serious environmental pollution. Commonly used additives are flavor, whitening agent, enzyme preparation, sodium p-toluenesulfonate, sodium carboxymethyl cellulose (CMC), etc. Refer to Table 1P23 for the reference formulations of individual laundry detergents. Table 1-23 Reference formula ingredients of individual washing powders Dosage/part Component Dosage/part Yellow percarbonate (PC) 40.0 Sodium carbonate 10.0 Sodium sulfate 10.0 Sulfate 5.0 1.0. Sodium tripolyphosphate (STPP) 0 Sodium Silicate 2.0～4.0 Magnesium Sulfate 0.5 Tetraacetylethylenediamine (TAED) 4.0 【Preparation method】 First, put alkylbenzene sulfonic acid and liquid alkali with a concentration of about 30% in a coordinated tank Middle heel, and then add the rest of the materials except the non-ionic nominal active agent and essence according to the formula proportion and in a certain order. The order of feeding the materials is that the materials that are insoluble, the apparent density is small, and the proportion of the formula is small first; the materials that are easily soluble, the apparent density are large, and the proportion of the formula is high, in order to achieve the goal of uniform slurry. . The prepared slurry is filtered through a filter screen, a continuous filter, or a vacuum filter, and then degassed with a degasser, and then ground by a homogenizer pump or a colloid mill to obtain a more uniform and fine slurry. The high-pressure pump drives it into the top of the spray drying tower, which is atomized into fine droplets by the atomizer, and meets the high-temperature airflow in the tower, so that it is instantly dehydrated and dried into hollow particles. The powder discharged from the bottom of the tower is cooled, aged and sieved, and the essence is added on special equipment. Products that need to increase the non-ionic nominal active agent can be sprayed in at the same time as the fragrance and can be packaged. [Product Standard] GB/T 13171-1997 [Use] For washing all kinds of fabrics.

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