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    MI-Type Soap Performance Enhancer and Its Act

Environment sense

Marcomer-- substitutes of polyphosphate

Superiorities of friendly detergent

MI-Type soap performance enhancer and its act mechanism

Mechanism

1、Problems of conventional soap in washing process 

<1>、Produce lime soap
   For many thousands of years ,soap had a predominant position in the system for body care and cleaning of textiles and hard surface. Sodium of fatty acids, such as stearate, palmitate,etc, are the main cleaning components of soaps. 

   Due to geological reason calcium and magnecium ions are ubiquitous.
   In washing process fatty acid react with water hardness ions to form insoluble hydrophobic multi-molecular layer lime soap film on water air interface.
   In washing water, lime soap coagulates and adherents to form granule sediments.
   Lime soap film and lime soap sediments adhered on inside and outside surface of fabric fiber; washing container surface and sewer tube surface.
   Owing to oxidation, acidolysis of lime soap ,the colour and lustre of textile fabrics shall change to gray colour and their fastness shall be reduced. 
  When lime soap adhered on our skin and hairs, some uncomfortable feelings also shall be experienced by us.

<2>、Textile fabrics los its soft and lithe feelings 
   Sodium carbonate and/or sodiun tripolyphosphate, auxiliary of soaps, react with hardness ions of washing water to form its insoluble salt. 
   Calcium carbonate and/or calcium phosphate microcrystals not only produced in water but also in the holes, the internal surface of textile fabrics.
   Through multi-times of washes, of multi-precipitations such as ten times of washes, micro-crystal deposites adhered on the fibre's inside and outside surface and gradually built up to form a continuous coating. Then  textile fabrics lose its soft and lithe characteristics--Encrustation.

<3>、Economy losses of conventional soap when it used in hard water area 
   Hard water area are widely dispersed over our country. Calcium and magnesium carboxylates may be in the range of 100-300ppm and more. 
   In wash process only after all hard ions salts had been removed by precipitation ,the excess soap was now available to act as a surfactant. 
   If soap consuming amount is 800,000 Ton/year. There will be 20,000 ton/year of soaps lost by lime-soap forming. Accounted for 2.5% of the total consuming amount. The economy losses are 40-50 millions of USD. On the other hand, economy losses resultes from the characteristics reduced and the service life of textile  shorted are didn't estimated.
   Therefore,to improve the detergency of soaps are the task which brooks no delay.

<4>、Limitations of lime-soap dispersing agents in conventional soaps 
   Lime-soap dispersing agents are the wide-ranging applied additives for to prevent the production of lime-soap to raise the solubility of lime-soap and to maintain the detergency of soaps .
   But lime-soap dispersing agents can't prevent the combinations between calcium ions and fatty acid in washing water. Especially the dispersancy of many lime-soap dispersing agents are less than fatty acid.
   Such as for anti-redeposition of soil and preventation of deposition-encrustation, lime-soap dispersing agents of traditional soap can't takes effect.

2、MI-Type soap performance enhancer and its act mechanism

<1>、Prevent the production of Limp soap 
  Sequestration ability of hardness ions of MI-type soap performance enhancer as compared with EDTA and sodium tripolyphosphate is more strong. 

<2>、Excellent dispersancy of lime-soap 
  Through deaggolomeration or peptization, MI-type soap performance enhancer possess the ability to break down large sized lime soap soil agglomerates to sub-micrometer size at low lever concentration (for example,20 mg/l).
   Especially the lime-soap dispersing power of MI-type soap performance enhancer are higher than alkylbenzene sulfonate and stronger than sodium tripolyphosphate. Then all lime-soaps suspend in washing water and easy to discharge away.

<3>、 Anti-redeposition of soil , keep bright and lustrous colour of textile fabrics.
   In washing process, soils which released from fabrics, can redeposit on textile surface again. Only a few times washes such as 1-2 times, the clothes will lose its bright colour and get dark. MI-type soap performance enhancer possess full power to prevent re-deposition, either by dispersing or by forming the barrier on the surface of fabrics.

<4>、Good entrustation inhibitor, preserved textile soft and lithe charateristics.
    MI-type soap performance enhancer can effectively inhibit the growth and the aggregation of calcium carbonate and/or calcium phosphate. 
    Through its high dispersing power, these particulate-soil can be suspended in washing water and drained away. Thus preserve textile soft and lithe charateristics, retard and inhibit textile's entrustation.
    Figures are the scanning electron micrographs of calcium carbonate precipitation-inhibition.
    Top photo: clean cotton fabric ;
    Bottom left: MI-type soap synergist absent ;
    Bottom right: MI-type soap synergist present .
    From bottom left photo, can see that as MI-type soap synergist absent, a lot of calcium carbonate precipitate on cotton cloths and show white clour.
    When MI-type soap synergist present, after ten times wash, cotton cloths without precipitation, photo keeps normal colour.

 <5>、Inhibit salting-out, acidolysis and crack of soap products. 
    MI-type soap performance enhancer possesses good pH buffer capacity, high tolerance of electrolytes and fine sequesting power. Therefore,MI-type synergistic can effectively sequesting copper and iron ions to inhibit its catalytic oxidation, and acidolysis, and to inhibit the permeation of electrolytes.
     MI-type performance enhancer also can increasing plasticity and slippery property, of soap base makes it easy processing and forming and can avoid producing white spots and spilts.

    From above mentioned we can see that MI-type soap performance enhancers are the new additives with full benefit for new type soaps production.