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Soil redeposition prevention

Various hydrophilic finishes have been used in connection with soil release and soil redeposition during laundering. These finishes can impart a degree of antistatic protection to the treated materials however, the main functions of these finishes are to release soil and to prevent the redeposition during laundering. [Pg.295]

Excellent stability and suspendabi1ity are provided to the highly-alkaline formulations by a combination of Acusol 810 and Acusol 820 stabilizers. Both formulations can be pumped with a peristalic pump. Acusol 445 low-molecular-weight poly-acylic acid improves overall cleaning, prevents soil redeposition and, in the slurry formulations, aid in the precipitation and dispersion of the hydrated STPP. [Pg.112]

Antiredeposition Polymers. The surfactants employed in synthetic detergents are effective in removing soil and stains from the surface of the washed fabric. Under heavy soil loading, there is a tendency for these soils to redeposit on the fabric. Various charged polymers have been found to prevent soil redeposition. Sodium carboxymethylcellulose (NaCMC) is effective in reducing soil redeposition at a formulation level of 0.1-0.5 percent. [Pg.1733]

CMC is used primarily in surfactants and PVP is used as bath additive. Further, CMC also forms a protective colloid with the soil and thus prevents soil redeposition on the cloth. The emulsion of oil and dirt should be stable, otherwise there will be redeposition. Ordinary soap and detergent is a good emulsifying agent. [Pg.103]

Since the adsorption of nonionics onto soil or substrate does not significantly increase its electrical potential at the Stem layer, this mechanism of soil removal is probably not a major one for nonionics, and nonionics are generally not as effective as anionics for the removal of particulate soil (Albin, 1973). On the other hand, they appear to be very effective for producing steric barriers (see below) for the prevention of soil redeposition. [Pg.358]

Oily Soil Nonpolar soil has been found to be removed from hydrophobic substrates (e.g., polyester) more effectively by POE nonionics than by anionics (Fort, 1968 McGuire, 1975), and investigations of this type of soil removal have concentrated on the use of POE nonionics. POE nonionics have also been found (Rutkowski, 1971) to remove oily soils and prevent their redeposition at lower bath concentrations than anionics (i.e., nonionic surfactants are more efficient for these purposes than anionics). The greater efficiency of nonionics in soil removal is presumably due to their lower CMCs in the prevention of soil redeposition it is probably due to their greater surface coverage per molecule when adsorbed on substrate and soil. [Pg.367]

In general, nonpolar (oily) soil is removed from hydrophobic substrates by polyethylene oxide nonionics better than by anionics. Also, nonionics are found to remove oily soils better than anionics at lower temperatures, due to lower CMC, and are generally better at preventing soil redeposition because of the greater surface area covered per molecule when adsorbed on substrate or soil. ... [Pg.44]

Builders Reduce water hardness to allow better surfactant performance may provide a good level of alkalinity for cleaning may assist with suspending and preventing soil redeposition Sodium tripolyphosphate Sodium citrate Sodium carbonate Zeolite Nitroltriacetic acid (NTA) Citric acid Tartrate succinate ... [Pg.907]

FIGURE 10.5 Use of sodium carboxymethyl cellulose (CMC) in detergents to prevent soil redeposition during washing of fabrics in dirty water. Redrawn from Stelzer and King (1980). [Pg.227]

Smith, A. W. and Lamb, M. H. (1981). The prevention of soil redeposition in the cleaning of historic textiles. In 6th triennial meeting Ottawa, 21-25 September 1981 Preprints, p. 6, International Council of Museums Committee for Conservation. [Pg.234]

Builders are used to enhance the performance of the surfactant system, using several different mechanisms. Probably the most important functions of a builder system are to reduce the deleterious effects of water hardness, to provide an alkaline buffer, and to prevent soil redeposition. Until about 15 years ago, all the builder systems were based on sodium phosphates (pyrophosphate, tripolyphosphate). Due to eutrophication of lakes and rivers, phosphate levels were regulated and, in some countries, totally banned. As a result, different builder systems were developed, based on zeolites and citrate with acrylic acid polymers and copolymers. [Pg.4]

The most critical decision a polymer scientist has to take, in addition to the always present consideration of cost constraints, is how to balance in his new molecule idea the several factors given above Does he need to maximize sequestration, trying to also obtain a good clay dispersion, which may be at the expense of the fabric s anti-incrustation performance Or should he not maximize the crystal inhibition performance of the polymer, in order to try to get a good fabric anti-incrustation also, and leave both the clay dispersancy and the prevention of soil redeposition to a bare minimum The answer to those questions obviously depend largely on the specific application considered and from... [Pg.565]

Uses Detergent for wh. clothes prevents soil redeposition Properties Wh. powd. [Pg.777]

Uses Emulsifier, thickener, coupler, and insol. particle suspending agent used In liq. detergents prevents soil redeposition Properties Wh. fluffy powd. 2-6 p particle size sp.gr. 1.41 bulk dens. 13 Ib/ft ... [Pg.1369]

Insoluble pigment soils, such as clays or other particulate solids, are removed during cleaning from the fiber surfaces with the help of surfactants. In both cleaning systems, surfactants incorporate this type of soil into the micelles to form relatively stable suspensions to prevent the redeposition of soil onto the textile (12). [Pg.213]

A concentrated general purpose scour, HYDROTERGE A-114 is a blend of anionic/nonionic surfactants. Offering good suspension of particulates such as soil and dye residues, HYDROTERGE A-114 also effectively removes and prevents redeposition of oils and waxes. [Pg.395]

Soil release finish. Typically applied in the dyebath, HYDRELEASE ADL aids in the removal and prevents redeposition of oils and soil during processing as well as imparts soil release properties to the finished goods. [Pg.404]


See other pages where Soil redeposition prevention is mentioned: [Pg.3]    [Pg.3]    [Pg.530]    [Pg.152]    [Pg.152]    [Pg.9]    [Pg.293]    [Pg.3132]    [Pg.1584]    [Pg.93]    [Pg.277]    [Pg.295]    [Pg.364]    [Pg.370]    [Pg.371]    [Pg.209]    [Pg.58]    [Pg.486]    [Pg.227]    [Pg.486]    [Pg.531]    [Pg.148]    [Pg.346]    [Pg.93]    [Pg.90]    [Pg.480]    [Pg.148]    [Pg.289]    [Pg.291]    [Pg.149]    [Pg.3135]    [Pg.255]    [Pg.1585]   
See also in sourсe #XX -- [ Pg.359 , Pg.361 , Pg.364 ]




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