The,cautions,using,pyrithionc, DIY The cautions of using pyrithionc zinc
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Pyrithionc zinc caneffectively inhibit cells keratosis speed, essentially blocking the dandruff production,In addition, because it insoluble in surfactant system, after washing hair withcontaining pyrithionc zinc shampoo, there are still parts of pyrithionc zincadsorbed on the surface of the scalp, make the anti-dandruff and antipruriticeffect is more durable. It can also melt the generated dandruff as invisible fineparticles. Pyrithionc zinc is stability in the range of shampoorequired PH and manufacturing temperature range, can be mixed use with the vastmajority of shampoo ingredients. Beforeusing the pyrithionc zinc, the product is necessary for through at least 10minutes vibration or stirring to make the product mixed. Adjusting the amountof each batch, if possible, each batch count should be added in an amount inbarrels, and sometimes when a barrel is only a part, the solid dried and meetcondensation on the casks sides, while moving up and down, the condensationproduct will sink in the remaining product and obtain in final products. Keepcontainer sealed, moisture evaporation will change the content of products,resulting in the formulation added incorrect amount. Pyrithionczinc is a chelate compound, insoluble in water, but can be dispersed in theemulsion, melting point is 240,relative density is 1.782. It has a strong killing and inhibit reproductivecapability to bacteria, as a preservative, also can anti-seborrhea, can reducethe metabolism of the skin, the use amount is generally not more than 2%. Becauseit does not dissolve in water, so it is necessary suspended by pyrithionc zinc suspension,can be used TAB-2 and so on. While use, can be mixed pyrithionc zinc and water with1:1, and added in the production tail. The deficiency of pyrithione zinc is thepoor solubility and eye irritation. Shampoocontaining pyrithionc zinc can not be added EDTA, EDTA can chelate with the zincof pyrithionc zinc, generating pyrithione ions and EDTA chelates, pyrithioneions react with iron ions can form colored compounds, impact shampoo color, whetherother chelating agents can be joined should be decided to the experiment. Ferricions react with pyrithionc zinc generated colored compounds, such as shampoos containa small amount of trivalent iron ions, can be through the method of first addinga small amount of zinc salt, such as zinc oxide or zinc chloride, make the zincion content 4 times (generally at 4 to 10 times) more than iron ion content toavoid generating a trivalent pyrithione ketones. In the production processshould avoid using iron, copper containers and equipment. Device can useporcelain pond pure 316 stainless steel pot or pan. Recommended not use containiron ions or low iron ions content cosmetic material. Pyrithionczinc has been developed for many years, by long-term use and isotope trackingprove that it used as a high grade anti-dandruff shampoos additive, only adsorbedon the surface of the skin, and do not penetrate through the stratum corneum toflesh, with high security, use the conventional volume is non-toxic to humans,long-term use without side effects, internationally recognized as an efficientand safe ainti-dandruff antipruritic. But most manufacturers produce smallparticle size pyrithionc zinc, the pyrithione sodium synthesized by conventionalmethod added into pearlescent shampoo will cover the shampoos pearly lustret,affect shampoo appearance. The pyrithione sodium thorugh special process synthesizingpyrithione zinc, the particle size is moderate, an average particle size isabout 2um, adding to pearlescent shampoo does not affect the pearly lustreeffect, do not settle. ArticleSource:http://www.cosprm.com
The,cautions,using,pyrithionc,