Bleach stabilization

Builders (LD, ADW, HC) Enhance cleaning efficiency of surfactant by reducing water hardness Calcium binding capacity Soil dispersibility Alkalinity Bleach stabilization and anticorrosion capability Zeolite Citrate Polycarboxylate Carbonate Sodium silicates 20-30% 0-4% 0- 5% 5-30% 1- 20%... 

In all applications, the chelant may have been added for a variety of purposes. As discussed in Section 10.2, chelants can have roles where calcium and magnesium control is key, such as detergency or scale inhibition. Alternatively, transition metal ion control could be the target, for example, in bleach stabilization. Some applications require both properties simultaneously. Chelants can also act as biocide potentiators or as antioxidants, to prevent trace metal ions from causing oxidative spoilage. This may require that metal concentrations be kept below certain... 

The next step is to set performance and cost criteria for the system in order to be able to determine whether the new greener design is acceptable. Chelants are often one of the hidden components in a formulation whose value is only found when the system fails. So, what is the cost of batch failure, product spoilage, laundry not being cleaned, reworking in a pulp mill, and so on Also, what is the target cost per dose for the chelant and related chemicals It is important to set acceptable limits on performance - for example, the formulated product needs to be stable for 6 months or show bleach stability >80% over the 30 min wash cycle. 

Chelants in bleach-activated powder laundry detergents have a number of key roles to play - bleach stabilization, dye and fabric protection, stain removal, and scale inhibition. 

Rau [2] prepared terpolymers of ethyl ot-acetoxyacrylate, acrylic acid, and vinyl acetate that were used as bleach stabilizers in phosphate-free laundry detergent formulations. 

Peroxide bleach stabilizer. Provides high sequestering effect to prevent catalytic damage. Yields absorbent fabric with low ash value and soft hand. Water soluble, no deposits on fabric or equipment. 

Nonsilicate peroxide bleach stabilizer for batch processing. 

Peroxide bleach stabilizer. Non-foaming. Compatible with high caustic concentrations. 

Peroxide bleach stabilizer containing surfactants. Anionic/ non-lonlc. 

Bleach stabilizer for continuous single stage bleachlng--Anlonlc/non-lonlc. 

Bleach stabilizer that is effective in acid mediums. Allows bleaching of cotton and dyeing of polyester in same bath. 

U.S. 5169552 (1992) [64] Wise (Procter Gamble) Polymeric thickener stabilizing agent buffering agent Improved bleach stability improved rheology shear thinning... 

U.S. 5135675 (1992) [65] Elliot et al. (Lever Bros.) Swellable clay, sulfonated polymer, and multivalent cations Good salt tolerance bleach stability shear thinning... 

EP 0518721 B1 (1995) [197] Burbut et al. (Colgate-Palmolive) Enzyme nonaqueous Free of bleach stability... 

Bleach Stabilization. When added to hydrogen peroxide based bleaching systems, soluble silicates are known to significantly enhance bleach performance. Many hypotheses have been put forth to explain this process, including buffering, peroxysilicate complex formation, and modification of peroxide equilibrium. However, the most recent and plausible explanation is that the silicate inactivates iron and manganese species which catalyze peroxide decomposition (13). 

AmUght M 2. [Am. Emulsions] Inorganic blend peroxide bleaching stabilizer for cellulosic fibers and blen. ... 

Prechem. [Ivax Industries] Wetting agent, dyeing assistant, kier boiling assistant, scouring agent, detergent, peroxide bleach stabilizer for textiles. 

Totablaii. [CecaSA] Hydrogen peroxide bleaching stabilizer, wetting agent... 

Marvanquest [Mariowe-VanLoan] Organic blend hydrogen peroxide and bleach stabilizer prevaits calcium deposits. 

Rini, S.J. Refining, bleaching, stabilization, deodorization, and plasticization of fats, oils, and shortening./.Am. Oil Chem. Soc. 1960,37, 515—520. 

Synonyms NaeDTPMP Properties Amber liq. m.w. 705 Uses Deflocculant, sequestrant, scale inhibitor for cooling water treatment, detergents, peroxide bleach stabilization, l l cleaners, geothermal, oil field applies. deflocculant, sequestrant, process additive for paper, textiles, and metals industrial and commercial formulations for cleaning various substrates cement modifier (retards concrete setting times)... 

Sodium methyl tall oil acid taurate scale inhibitor, peroxide bleach stabilization Hexasodium diethylenetriaminepenta (methylenephosphonate) scale inhibitor, peroxide stabilization Ethylenediaminetetra (methylene phosphonic acid) Pentasodium diethylene triamine pentamethylene phosphonate 2-Phosphonobutane tricarboxylic acid-1,2,4 Sodium diethylenetriamine penta (methylene phosphonate) Sodium nitrilotris (methylene phosphate)... 

Sodium diacetate sequestrant, supplements Sodium citrate sequestrant, tablets Sodium citrate sequestrant, textile additives Diethylene triamine pentamethylene phosphonic acid Etidronic acid sequestrant, textile bleach stabilization Sodium diethylenetriamine penta (methylene phosphonate)... 

G. Gordon and B. Bubnis, Bleach Stability and Filtration, AWV/A Water Technology Conference, Boston, MA(1996). 

It is important to note that although nonionics are important functional ingredients of the vast majority of powder and tablet ADDs, there is a need for such surfactants in liquid gel ADDs containing hypochlorite bleach. Commercially available nonionics developed for ADDs have limited bleach stability in aqueous gel formulations. For this reason all the liquid ADD gels marketed contain either no surfactants or bleach-stable surfactants. 

EP 1 717 302 (2006) K. Kleeli et al., Mifa PAP, dual-compartment bottle Sulfosuccinate as bleach stabilizer... 

The big challenge is the ingredient compatibility, especially between enzymes and bleach stability in an aqueous matrix, as well as phase stability. In the latter case, it is possible for various... 

CiuUo, P.A. and Andersson, M., Natural smectic clays as bleach stabilizers, HAPPI, Dec, 102, 2000. 

Sodium iminodisuccinate can be used in a variety of applications that employ chelating agents, for example, as a builder and bleach stabilizer in laundry and dishwashing detergents to extend and improve... 

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