MX2010013922A - Stain-discharging and removing system. - Google Patents

Stain-discharging and removing system.

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Publication number
MX2010013922A
MX2010013922A MX2010013922A MX2010013922A MX2010013922A MX 2010013922 A MX2010013922 A MX 2010013922A MX 2010013922 A MX2010013922 A MX 2010013922A MX 2010013922 A MX2010013922 A MX 2010013922A MX 2010013922 A MX2010013922 A MX 2010013922A
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Mexico
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percent
stain
weight
composition
clauses
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MX2010013922A
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Spanish (es)
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Corey Cunningham
Scott W Wenzel
Jeffrey R Seidling
Chris Decker
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Kimberly Clark Co
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Priority to MX2010013922A priority Critical patent/MX2010013922A/en
Publication of MX2010013922A publication Critical patent/MX2010013922A/en

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Abstract

A cleaning composition that can discharge the color of blood, menstrual fluids, or other organic stains is provided. In particular, the present invention achieves a balance between control of unwanted liquid spreading by lateral wicking on a stained textile fabric to lessen the size of wet spots and maintaining the cleaning efficacy of the composition by means of specific kinds of thickening agents. The composition includes an oxidizing agent such as peroxides, a cell-lysing agent, a chelating agent, an antioxidant, a thickener, and other optional ingredients that are selectively employed to achieve an aqueous based composition that exhibits good shelf stability and stain removal properties. The thickening agent may include a cellulosic or clay material, starch, gum, fatty acid, fatty alcohol, hydrophilic colloidal particles, polyoxyethylene glycol or polyoxyethylene glycol derivatives including fatty acid esters and ethers, or a combination thereof.

Description

MANCHA REMOVAL AND DISCHARGE SYSTEM FIELD OF INVENTION The present invention relates to a joint product kit and to a method for decolorizing or neutralizing various colorants and organic stains. In particular, the invention describes a cleaning equipment and a reaction mechanism for the removal of stains that targets organic coloring systems. The present invention also speaks of improving a formulation for a stain discharge solution having at least one kind of thickener and exhibiting a controlled liquid flow when applied to the stained textile substrate.
BACKGROUND Traditionally, blood is seen as among the most difficult spots to remove along with ink and grease, which are difficult to clean and remove. The removal of blood stains, for example from clothing, is arduous and it is a process that takes time to be careful, so as not to permanently fix the stain on the fabric. The typical process involves rinsing the fabric with cold salt water (not with hot water as this will fix the stain on the fabric being almost impossible to remove). The fabric is then soaked in cold water containing an enzyme-based detergent or a meat extender for about 30 minutes to 60 minutes. One will then apply a pre-soaked clothing and then wash it with an enzyme-based detergent. (See for example the FIELD GUIDE FOR STAINS, page 199 to 202, of Quirk Publications, Inc. copyright 2002). Of course, this treatment can truly be a time-consuming process and does not lead to portable use outside the home.
Recent stain removers use a giant method to remove blood stains, for example, by applying an oxidizing agent to the stained area. U.S. Patent No. 6,730,819 claims the use of oxidizing agents, including oxides, peroxides, ozonides and super oxides. Most of these agents are irritant or caustic to human skin and therefore are not suitable for use in various consumer products, such as pads for women's hygiene or other applications that make contact with the skin. In a series of studies, Consumer Reports, a leading US consumer product publication, evaluated spot removers and points currently tradable and available and found that these either do not work effectively against stains or spots of blood, ink or grease or is not recommended for these spots or spots. (See, CONSUMER REPORTS) "Seeing Stains Do not Trust Rapid Stain Removers", page 9, August 2006; CONSUMER REPORTS, "Stain removers: which are the best" page 52, March 2000; and CONSUMER REPORTS "Cleaning on the point", page 10, June 1998). Some of the spot removers and commercial spots explicitly state on their packaging "is not effective on blood, ink and grease".
Currently, all the absence of a viable composition or a commercial product, there is a need for a better kind of stain remover, especially one that works well on blood, ink or grease, among other dyes or stains. Workers in several different industries, such as those related to domestic or industrial cleaning, laundry, textiles, cosmetics or hygiene, will appreciate an astringent stain removal formulation but less caustic that can neutralize or discharge various kinds of dyes at a relatively fast rate. The formulation can be applied to articles that can be contacted with bare skin or on a variety of different materials and in a variety of products without harmful effects.
SYNTHESIS OF THE INVENTION The present invention relates to a method and a product system for actively removing or discharging an organic dye stain, such as blood or a menstrual fluid. The method involves providing a textile substrate having an organic dye stain on a first coating; applying an absorbent substrate against one side of the textile substrate, either directly in contact with the stain on the first coating or a second coating behind or opposite from the stain; treat with a spunblown composition of textile substrate opposed to the absorbent substrate, so that the stain discharge composition and stains are pulled through the textile substrate to the absorbent substrate. The stain discharge composition discolours and produces a composite of the stain material to allow it to be pulled through the fibers within the absorbent substrate. When the stain discharge composition is placed on said stain, the transmission action of the stained textile pulls the solution horizontally through the textile substrate, creating a point less on the textile. At the same time the solution is pulled along the vertical axis through the plane of the textile sheet by the capillary action of the absorbent substrate. It is believed that the capillary action of the absorbent substrate pulls the stain discharge composition through the stained textile fibers and the plane of the textile sheet into the absorbent substrate. Typically, the stain undergoes a detectable change in color within about 30 minutes or less after contact with the decolorizing composition.
In another aspect, the present invention also relates to a spot removal equipment that can be used to practice the method outlined above. The set case includes the number of absorbent layers that are adapted to pull moisture out of a treated stain area, a container containing a stain discharge composition with a polar solvent or aqueous base medium; and a stain agitating device which is configured either separately from a part of the spout or an integrated part of said spout. The absorbent medium can be in any form that easily spreads from the spout, but typically can be in the form of a liquid, a gas, or an almost solid. The absorbent substrates are formed of at least one or a combination of the following: a paper towel material, an absorbent cellulose base fabric, a sponge or absorbent foam, a nonwoven fabric base sheet material, or a super absorbent material, or an absorbent with a non-liquid permeable backing, or any other absorbent substrate. Alternatively, the absorbent substrates can be formed from at least one of the following combinations thereof in a laminated form: a) a fabric laid by cellulose air with about 50 percent-60 percent of a homogeneously blended super absorbent there, b) a fabric tied with cotton cellulose yarn, or c) cotton quilted squares. It can also not physically agitate the stained area either during the treatment step or after said treatment step, either manually by treating or using a scrubbing device, a tool or other mechanism. The spot may be located between the absorbent substrate and a direction from which the treatment is applied.
In yet another aspect, the present invention includes an aqueous base bleed-off composition having a viscosity of between 10 ° C and about 150,000 cP. The composition discharging the stain has an oxidizing agent, at least one cell disintegrating agent, at least one chelating agent, at least one antioxidant, a thickening agent and a polar solvent. The oxidizing agent may be a hydrogen peroxide or any other compound capable of releasing hydrogen peroxide in a controlled manner. The peroxide is in an amount of from about 0.10 percent by weight of about 10 percent by weight. The composition also includes from about 0.1 percent by weight to about 10 percent by weight of the cell disintegrating agent, such as a surfactant, of from about 0.05 percent by weight about 10 percent by weight of the chelating agent, from about 0.0005 percent by weight about 5 percent by weight of an antioxidant, and from about 50 percent by weight to about 99.9 percent by weight of the polar solvent such as water. Additionally, the composition includes a thickening agent of from about 0.001 percent by weight to about 10 percent by weight to control the flow rate and dispersion of the spot discharge composition when applied to a spot on either any a woven or non-woven textile substrate. The composition, for example, can hold about 70 percent or more, in some incorporations about 80 percent or more, and in some additions, about 90 percent or more of its initial content of hydrogen peroxide (H2O2) Subsequent to being aged at room temperature (~ 25 degrees Celsius) for 2 weeks.
According to another embodiment, the present invention relates to a cleaning cloth comprising a non-woven fabric and a stain-discharging composition made from an aqueous base, as listed above, constituting from about 50 percent by weight to about 600 percent by weight of the dry weight of the cleaning cloth. The cleaning cloth material may, according to certain embodiments, be used as a scrubbing substrate to mechanically agitate against a stain and also to be applied as a blotting paper substrate absorbent material.
Other aspect features of the present invention are discussed in more detail below.
BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a graph illustrating rheology profiles relating to certain examples of the formulations for a stain discharge means according to the present invention. These compositions have thickeners which exhibit good chemical and physical stability for storage of the medium, as well as an initial viscosity when first applied which provides good flow control, and maintains its cleaning force and stain discharge efficiency.
Figure 2 is a graph of the rheology profiles of some comparative formulations containing thickeners, but which do not work well to maintain cleaning efficiency.
Figure 3 shows a series of photos comparing the relative speed and effectiveness of the removal of an organic stain from cotton undergarments, each of which has been similarly stained with blood. Figure 3A shows a garment after having been treated with an incorporation of the present stain discharge composition and which have been cleaned according to the method described herein below 3 minutes. Figure 3B to Figures 3D are garments each treated with a commercially available competitive "on the fly" stain remover and cleaned according to the methods suggested by the manufacturer for up to about three minutes.
DETAILED DESCRIPTION OF THE INVENTION Section I. - Definitions As used herein, the term "non-woven fabric" generally refers to a fabric having a structure of individual fibers or threads which are interleaved but not in an identifiable manner, in a knitted fabric. Examples of suitable non-woven fabrics include, but are not limited to, meltblown fabrics, spunbonded fabrics, carded fabrics, airlaid fabrics, etc. The basis weight of the non-woven fabric can vary, such as from about 10 grams per square meter (gsm) to about 200 grams per square meter, in some embodiments from about 15 grams per square meter to about 170 grams. per square meter or 180 grams per square meter, in some additions of around 15 grams per square meter to about 125 grams per square meter or 135 grams per square meter.
As used herein, the term "melt blown" generally refers to a non-woven fabric that is formed by a process in which a molten thermoplastic material is extruded through a plurality of thin, usually circular, capillary doses of matrix. such as fibers melted inside gas streams (for example air) at high speed and converging which attenuate the fibers of molten thermoplastic material to reduce their diameter, which can be to a microfiber diameter. carried by the high velocity gas stream and deposited on a collecting surface to form the meltblown and randomly dispersed fibers, such a process is described, for example, in United States of America Patent No. 3,849,241 issued to Butin and others, which is incorporated here in its entirety by reference to the same for all purposes, generally speaking, fibers treated with Fusion can be microfibers that are essentially continuous or discontinuous, usually small ones of 10 microns in diameter, and are generally sticky when they are deposited on the collector surface.
As used herein, the term "spunbond fabric" generally refers to a fabric that contains essentially continuous fibers of small diameter. The fibers are formed by extruding a molten thermoplastic material from a plurality of fine capillary vessels, usually circular, of a spinning organ by the diameter of the extruded fibers then being rapidly reduced as by, for example, the eductive pull and / or other well-known spin-bonding mechanisms. The production of yarn-bonded fabrics is described and illustrated, for example in U.S. Patent No. 4,340,563 issued to Appel et al., In U.S. Patent No. 3,692,618 issued to Dorschner et al. others, in the patent of the United States of America No. 3,802,812 granted to Matsuki et al., in the patent of the United States of America No. 3,338,992 granted to Kinney, in the patent of the United States of America No. 3,341,394 granted to Kinney, in the patent of the United States of America No.3, 502, 763 granted to Hartman, in the patent of the United States of America No.3, 502, 538 granted to Levy, in the patent of the United States of America. America No. 3,542,615 issued to Dobo et al., And in United States Patent No. 5,382,400 issued to Pike et al., All of which are hereby incorporated by reference in their entirety for all purposes. Spunbonded fibers are not generally sticky when they are deposited on a collecting surface. Spunbonded fibers can sometimes have diameters of less than about 40 microns, and are preferably about 5 microns and about 20 microns.
As used herein, the term "carded fabric" refers to the fabric made of short fibers that are sent through a carding combing unit, which separates or breaks separates and aligns the short fibers in the machine direction to forming a fibrous nonwoven fabric oriented in the direction of the machine generally. Such fibers are usually obtained in bales and placed in opener / mixer or shredder, which separates the fibers before the carding unit. Once formed, the tissue can then be joined by one or more known methods.
As used herein, the term "air-laid fabric" refers to nonwovens formed by air placement processes, which involve bunches of fibers having typical lengths ranging from about three millimeters to about 19 millimeters (mm). ). The fibers are separated, carried in a supply of air and then deposited on a forming surface, usually with the aid of a vacuum supply. Once formed, the randomly deposited fibers are joined to one another by one or more known methods, for example hot air or sprayed adhesive. Air placement is described, for example, in U.S. Patent No. 4,640,810 issued to Laursen et al.
As used herein, the term (microfibers) means small diameter fibers that have an average diameter of no more than about 75 microns, for example, having an average diameter of from about 0.5 microns to about 50 microns, or more particularly , the microfibers can have an average diameter of from about 2 microns to about 40 microns. Another frequently used expression of denier fiber diameter, which is defined as grams per 9000 meters of a fiber and can be calculated as fiber diameter in square micros, multiplied by the density in grams per cubic centimeter, multiplied by 0.00707. A lower denier indicates a finer fiber and a higher denier indicates a heavier or thicker fiber. For example, the diameter of a given polypropylene fiber as of 15 microns can be converted to denier by framed by multiplying the result by 0.89 grams per cubic centimeter and multiplying by 0.00707. Therefore, a polypropylene fiber of 15 microns has a denier of about 1.42 (152 x 0.89 x 0.00707 = 1.415). Outside the United States, the most common unit of measurements is "tex", which is defined as grams per kilometer of fiber. The tex can be calculated as denier / 9.
As used herein, "coform" is intended to describe a mixture of fibers blown with melt cellulose fibers that are formed by the formation of air of a meltblown polymer material while blowing simultaneously on the suspended cellulose fibers by air inside a stream of blown fibers with melting. The melt blown fibers containing wood fibers are collected on a forming surface as provided by a perforated band. The forming surface may include a gas permeable material, such as a spunbond fabric material, which has been placed on, the forming surface.
As used herein, the term "thickener" or "thickener" refers to ingredients used to increase the viscosity of polar or aqueous based solvents. Its ability to carry out this function is related to the solubility of the polar-based solvent, such as water.
Section II. - Detailed description Traditionally strong oxidizing agents such as those such as peroxide have been used to whiten or discolor stains, but most peroxides are difficult to use since they are unstable and decompose when they are in polar solutions, or are exposed to heat, to light, metal cations or halides. The present invention relates to a cleaning system which rapidly discolours and removes stains from surfaces on textile fabrics used in clothing without bleaching any dyes on the textile. For example, the present product can be employed with an applicator and an absorbent substrate, in various fields, such as for health care issues to effectively remove blood on surgical textiles such as gowns, caps, sheets or by the consumer in the home for various uses of stain removal.
Generally speaking, the present invention is directed to a bleaching composition that can discharge the color of blood, menstrual fluid, other difficult spots. More specifically, the peroxide, a cell killing agent, a chelating agent, an antioxidant, a polar solvent, a thickener and other optional ingredients are effectively employed to achieve an aqueous composition that exhibits good shelf stability and removal properties. of spots. The composition, for example, can be maintained at about 70 percent or more in some additions to about 80 percent or more, and in some additions to about 90 percent or more of its initial hydrogen peroxide content ( H2O2) subsequent to being aged at room temperature (~ 25 degrees centigrade) for 2 weeks.
By refining the chemical characteristics of the stain cleaning solution, the present invention advances beyond the previous investigation and has achieved some surprising results.
The present invention reduces the transmission of the composition along the textile fabric resulting in the smallest wet spot and the least water in the textile and overcomes the associated problems and disadvantages of prior water base stain discharge, such as the issues described in the patent application of the United States of America 11 / 847,549, the content of which is incorporated herein by reference. The present invention is built on the formulation for a spotting solution having peroxide, a cellulose destruction agent and a chelating agent, by the addition of viscosity improving agents that reduce the spreading or textile properties of the solution of discharge of stains through the fibers of a textile. This dimension is able to maintain the cleaning efficacy of the composition while providing additional benefits of less textile wetting during the stain removal process. A more viscous stain discharge product reduces the relative concentration of the water remaining in the fabric during the removal of the stain by minimizing the action of transmitting the solution through the textile. In general this will result in a more controlled manner and a smaller area that gets wet during spot discharge and a generally lower level of wetting on the textile to which the consumer applies the cleaning solution. This benefit is desirable for "on the go" consumers, who experience a stain or a stain on the clothing that is required to be worn immediately after removal of the stain, such as menstrual fluid draining or filtering on the panties or Underwear. In this case, the more viscous stain discharge solution allows the consumer to quickly remove the stain and use the treated garment again due to the lower overall wetness of the fabric.
In relation to other peroxide-containing solutions, the stain discharge compositions of the present invention can be used in a convenient on-the-fly type applicator product form. Previously, for example, when cleaning menstrual fluid stains on underwear, the stain removal composition is due to its liquid base formulation of relatively low viscosity (<9 or 10 cP), it tends to extend to a very large area when applied to a cotton textile material. When the stain is a very small point, the cleaning solution can cause the wet area of the removed stain to spread to a much larger area, making the underwear very wet, causing the consumer or consumer not to want the Use the undergarment again, thus defeating the advantages of the product on the fly.
It is desired that the consumer can clean the underwear by a localized application of the stain discharge product, only wetting the relatively small area affected by the stain. This allows the consumer to wear the underwear so soon after the application of the stain discharge product. The addition of the viscosity-increasing agents significantly limits the spreading of the cleaning solution along the textile fibers but does not impede the flow of the composition through the textile into the absorbent substrate. This approach to increase the viscosity and decelerate the rate of spreading of the solution of discharge of spots can seem at first to be conventional but we have discovered that the selection and inclusion of the appropriate class of thickening agents is far from obvious.
Even when the use of thickeners has been employed in other formulations to improve the relative viscosity of an aqueous detergent composition, such as in U.S. Patent No. 5,703,036 (issued to Iakovides), the functional distinction between such compositions and the presently described compositions have to do with the fact that not all thickened formulations are able to avoid both the transmission and still maintain the cleaning efficiency, within the specified time constraints (for example within about 1 hour, desirably within about 30 minutes). Even though some viscosity-increasing ingredients are effective in preventing the spreading of the cleaning solution, they can also prevent effective cleaning. We have discovered that certain viscosity-increasing agents that can both prevent the spreading of the cleaning solution and still clean it very efficiently. Generally we have found that carbomer and acrylate thickeners do not clean well at all. Formulations like those of Iakovides may show some reduced transmission, but surfactants will not only clean up organic stains that are difficult to remove, such as blood stains or other blood stains. The presence of antioxidants, a peroxide and chelating agents are necessary to punctually discharge the stain. Both aspects must be resolved in order to deliver an effective product.
Additionally, heavy peroxide compositions have been described, such as those mentioned in U.S. Patent No. 4,130,501 (issued to Lutz et al.). The formulations described by Lutz et al. Use the surfactant but the long term stability of the thickened composition can be achieved by specifically thickening with Carbopol resins since other thickeners do not thicken or maintain the long term stability of the composition. In contrast, the present invention has shown acrylates, such as Carbopol, as being effective in preventing the transmission of the solution through the substrate but are ineffective in cleaning the stain quickly and efficiently. Other thickeners were shown to maintain both a low transmission rate through the substrate and an effective cleaning of the stain.
According to the present invention, at room temperature (-18-25 degrees Celsius), the compositions have functioned well by a thickening agent generally having a viscosity in the range of at least 10 cP to about 150,000 cP. More specifically, the viscosity is in the range of from about 13 cP to 15 cP to about 5,000 cP. In certain embodiments, the desirable viscosity is in the range of about 20 cP to about 4,600 cP - 5,000 cP, and desirably from about 20 cP or 25 cP to about 3,500 cP or 4,000 cP. Certain preferred embodiments exhibit a viscosity of about 75 cP or 80 cP at about 600 cP. These values are expressed in terms of viscosity at 5 / seconds, since the viscosity is measured as a function of the cutoff rate in units of seconds inverse (sec "1) - Figures 1 and 2, have the graph of the viscosity of certain examples of the cleaning formulation as described herein. Figure 1 shows the rheology profile for certain examples containing thickening agents that increase viscosity while maintaining the efficacy of the cleaning formulation. In comparison, Figure 2 illustrates the rheology profile of the compositions containing thickeners that retard and interfere with the cleaning force of the formulation. In a mere comparison of the rheology profiles it will not lead one to conclude that the present invention is obvious. Rather, the differences that distinguish between the formulations of the invention from those that were found bordering on their performance are not evident by a change in the rheology of a formulation. Rather, the difference was related to the capacity of the formulation to exhibit both a minimal lateral spreading and a fast cleaning and an ability to remove organic stain. The distinction between the display of both a good cleanliness and a minimal transmission for a successful formulation against an unsuccessful one is believed to be related to its relevant composition.
The thickening agent is present in an amount in the range of from about 0.001 percent by weight to about 10 percent by weight. More specifically, the amount of from about 0.01 percent by weight to about 5 percent by weight. The inventors have identified that acrylate-based thickeners were not effective in providing both the attributes in terms of spreading while maintaining cleaning efficiency. Specifically, acrylate-based thickeners were found to stop transmission of the stain discharge solution but did not exhibit effective cleaning. Examples of the acrylate-based thickeners include Carbopol 980 polymer, Carbopol 940 polymer (INCI designation: Carbopol) available from Lubrizol / Noveon Consumer Specialties of (Cleveland, Ohio, United States of America), Ultrez 10, Ultrez 21 (designation of the International Nomenclature of Cosmetic Ingredients: acrylates / C10-30 alkyl acrylate cross-linked polymer available from Lubrizol / Noveon Consumer Specialties (Cleveland, Ohio) and Structure Plus (designation of the International nomenclature of Cosmetic Ingredients: acrylates / amino acrylates / copolymer of itaconate PEG-20 C10-30 alkyl) available from National Starch Chemical Company of (Bridgewater, New Jersey, United States of America).
A number of thickeners have been found to provide both anti-spreading attributes while maintaining good cleaning power. Examples of the preferred non-acrylate thickeners include, but are not limited to, clay, starch, cellulose, gum, fatty acid, fatty alcohol, colloidal particles, polyoxyethylene glycol derivatives, or other water-soluble polymer thickeners based on non-acrylate .
According to an embodiment of the invention, the clay particles can be added in the spot discharge composition as the thickening agent. The clay particles can comprise, for example, any suitable phyllosilicate material. The clay particles, for example, can generally have a particle size of less than about 2 microns. Clays that are particularly well suited for use in the present disclosure include colloid forming clays that are either natural clays or synthetic clays. Particular examples of the clays that can be used include laponite, montmorillonite including bentonite clays, hectorite clays, attapulgite clays, smectite clays, saponite clays, mixtures thereof and the like.
In a particular embodiment, the thickening agent may comprise laponite clay, such as XLG laponite (International Cosmetic Ingredient nomenclature: sodium magnesium silicate) available from Southern Clay Products, Inc. (of Gonzales, Texas United States) of America) laponite XLG is a synthetic layered clay similar to natural smectites.
In another embodiment, the thickening agent may comprise a starch, which includes starch derivatives. Starches are generally available from plants, such as corn, rice or tapioca and comprise a complex carbohydrate. Starch derivatives generally include starches that have been hydrolyzed into simpler carbohydrates by those of acids, enzymes or a combination of the two.
In a particular embodiment, the thickening agent may comprise a starch such as structure XL (designation of the International nomenclature of Cosmetic Ingredients: hydroxypropyl starch phosphate) available from National Starch Chemical Company of (Bridgewater, New Jersey of United States of America) .
Another example of the thickening agent that can be used in the present disclosure includes cellulose materials, particularly modified cellulose. Modified cellulose is generally referred to as cellulose wherein the hydroxyl groups of the cellulose are partially or completely reacted with various chemicals. Modified celluloses include cellulose esters and cellulose ethers. Cellulose suspension agents particularly well suited for use in the present disclosure include ethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, hydroxyethyl cellulose and mixture thereof.
In some other embodiment, the thickening agent may comprise a natural gum. Natural gums are well suited for use in the present description and include gum gum, carrageenan, gum arabic, locust bean gum, xanthan gum and mixture thereof. Natural gums can also include any derivative of the previous gums. For example, hydroxypropyl gum may also be used.
In other embodiments, the thickening agent may comprise the hydrophilic colloidal particles. Hydrophilic colloidal particles well suited for use in the present disclosure include microcrystalline cellulose, fumed silica, silica, hydrated silica and mixtures thereof. Specifically, the thickener may be Cab-o-sill M5 (International nomenclature of Cosmetic Ingredients designation: fumed silica) available from Cabot Corporation of (Tuscola, Illinois United States of America). Another example is Avicel 591 (designation of the International nomenclature of Cosmetic Ingredients: microcrystalline cellulose and cellulose gum) available from FMC Corporation of (Philadelphia, Pennsylvania, United States of America).
Another class of thickeners that can be used in the present disclosure include fatty acids and fatty acid alcohols. Fatty acids that can be used, for example, include the carboxylic acids of aliphatic acid having from about 8 carbon atoms to about 22 carbon atoms in the carbon chain, such as from about 10 carbon atoms to around 20 carbon atoms in the carbon chain. The aliphatic radical can be saturated or unsaturated and can be straight or branched. The mixtures of fatty acids can also be used such as those derived from natural effects such as fatty acid bait, fatty acid of cocoates, fatty acid of soybean and the like. Synthetically available fatty acids can also be used.
Particular examples of the fatty acids which may be used include decanoic acid, lauric acid, dodecanoic acid, palmitic acid, myristic acid, stearic acid, oleic acid, eicosanoic acid, fatty acid bait , the fatty acid of cocoates, the fatty acid of soybeans and their mixture.
As used herein, the fatty acids include the polyvalent metal salts of the above fatty acids. The polyvalent metals that can be used to form the salts include for example magnesium, calcium, aluminum and zinc.
The fatty alcohols that can be used as the thickening agent include alcohols of any of the fatty acids described above. In a particular embodiment, for example, fatty alcohol may have the following formula: RCH2OH wherein R is an alkyl group having from about 7 carbon atoms of about 19 carbon atoms, such as from about 9 carbon atoms to about 17 carbon atoms. Fatty alcohols also include those fatty alcohols that have been alkoxylated. For example, the fatty alcohol containing from about 6 carbon atoms to about 22 carbon atoms in the carbon chain can be alkoxylated with the ethylene oxide. The ethylene oxide may be present in an amount of from about 5 moles to about 90 moles.
Particular examples of the fatty alcohols that can be used include tauryl alcohol, oleyl alcohol, stearyl alcohol, cetyl alcohol, cetearyl alcohol, behenyl alcohol, and the like.
In still another embodiment, the thickening agent may comprise a fatty acid ester of polyoxyethylene glycol or a polyoxyethylene glycol ether. For example, the thickening agent may comprise a polyoxyethylene glycol fatty acid of glycerol or a polyoxyethylene glycol ether of a methyl glucose diester and a fatty acid. Particular examples include PEG-150 distearate, PEG-150 diisostearate, PEG-150 pentaerythrityl pentastearate, PEG-7 glyceryl cocoate, PEG-30 glyceryl cocoate, PEG-12 glyceryl laurate, PEG-20 glyceryl oleate. , the methyl glucose dioleate PEG-120, and methyl glucose distearate PEG-20, the methyl glucose laurate PEG-80, the methyl glucose sesquistearate PEG-20 mixture thereof.
In a particular embodiment, the thickening agent may comprise a polyethylene glycol diester such as Ethox HVB (designation from the International nomenclature of Cosmetic Ingredients designation: PEG-175 diisostearate) available from Ethox Chemicals, Inc. of (Greenville, South Carolina. United of America). Ethox HW is the polyethylene glycol diester of isostearic acid.
A - Composition Reference will now be made in detail to several embodiments of the invention, one or more examples of which are set forth below. Each example is provided by way of explanation of the invention and not a limitation of said invention.
In our effort to limit the tendency for the composition to discharge the stain to spread out and control the final size of the wetted area caused by the composition, while still maintaining its cleaning force, we produce several example formulations. The data is summarized in the accompanying table A, where the examples of the invention 1-4 showed the best cleaning performance observed, examples 5-11, the next best, and in examples 12 and 13 the average level of effectiveness cleaning. Examples 14-19, did not work well when compared to others. Comparative Example A is a formulation derived from the composition described in U.S. Patent Application No. 11 / 847,549.
We discover that not every kind of thickener works well to reduce the spreading and while also maintaining the effectiveness of cleaning and discharge of color. Using a variety of thickeners to increase the viscosity of the cleaning solution, we tested the spreading characteristics of the solution on cotton underwear. Certain kinds of thickener additives were found that make cleaning more difficult. Thickeners are finding that they are not effective include acrylate-based thickeners, such as carbomer (Carbopol 980 polymer, Carbopol 940 polymer available from Noveon), C10-30 acrylate alkyl acrylate cross-linked polymer (Ultrex 10, Ultrez 21 available from Noveon) and acrylates / amino acrylates / itaconate copolymer PEG-20 C-10-30 alkyl (Structure Plus available from National Starch.) For example, we first incorporated acrylate-based thickeners (eg Ultrez 21). ), as in example 19, to increase the viscosity of the stain discharge solution and test the spreading characteristics Initially, we found that the thickener reduced the spreading but unfortunately the additive made color discharge and cleaning difficult. Even though one should not be limited by one theory, one possible explanation for the relatively poor efficiency of carbomer molecules in the The cleaning can be that the carbonacerators counterattack the effective reaction of the peroxide molecules. Acrylate-based thickeners, it is believed, create a barrier layer that prevents active peroxides from interacting with the stain material.
Therefore, merely thickening the formulation will not be an obvious solution to the presented viscosity problem. An additional work with alternating thickeners led to discover that cellulosic thickeners, clays and starches worked best to reduce both lateral spreading and exhibit good macha discharge and cleaning force. In certain embodiments the amounts of cellulosic thickeners can vary from about 0.025 percent to about 0.35 percent or 0.45 percent, more typically within about 0.05 percent and 0.25 percent or 0.3 percent inclusive. For example, Table A, the successful composition of examples 1, 2 and 10 which incorporated the xanthan gum at a concentration range of about 0.1-0.25 percent. This formulation both cleaned well and reduced the lateral spreading of the cleaning solution. When a cleaning material was used, the amount of thickener may be present in a range of from about, from 0.05 percent to about 3.5 percent, desirably from about 0.5 percent to about 2.5 percent or 3.0 percent. The starches may be present in an amount of from about 1.0 percent to about 5.0 percent, typically from about 1.5 percent to about 3.5 percent, desirably from about 2.0 percent to about 3.0 percent .
Also summarized in Table A, examples of the formulations of the invention containing an appropriate amount of thickening agents are capable of reducing the size of a wet spot created by the spreading of a 1 milliliter drop of cleaning solution applied to the textile substrate. by a factor of at least about 1.4, compared to a solution without the thickener. Typically, the spreading of the wet spot area is reduced by a factor of between about 1.7 to about 8 or 10. In certain embodiments, the spreading of the wet spot area is reduced by a factor of about 2 to about 7. , and desirably for about 2.3 to about 6.1 or 6.5. The amount of wet surface area cleaned using the present thickened compositions can be reduced by a factor of 2.3 to about 25.5, when compared to a solution without a thickener. Typically, the wetted and cleaned surface area can be reduced by a factor of about 2.7 around 20, more typically by a factor of about 4.7 or 5.9 to about 10.5 or 15.7 inclusive. Through visual observation, the relative effectiveness of spot removal and cleaning within about 3 minutes after the spot treatment is placed in the range along a scale value from 1 to 5, where one represents the worst and 5 the best. The formulations of the composition of the invention are in the range of 3-5. More desirably, the incorporations are typically exhibited in a cleaning effectiveness represented in the range of 4 and 5.
The stain discharge composition can be formed of a peroxide releasing compound when it is present in an aqueous or polar solution. Suitable sources of hydrogen peroxide may include, for example, the peroxides of alkali and alkaline earth metals, organic peroxy compounds, peroxy acids, pharmaceutically acceptable salts thereof, and mixtures thereof. The alkali metal and alkaline earth metal peroxides include lithium peroxide, potassium peroxide, sodium peroxide, magnesium peroxide, calcium peroxide, various peroxide, and mixtures thereof. The organic peroxide complexes can also be used such as the peroxide carbamide (also known as urea peroxide), hydrogen peroxide glyceyl, hydrogen peroxide alkyl, dialkyl peroxide, peroxy alkyl acids, peroxy esters, diacyl peroxides, benzoyl peroxides, and monoperoxy phthalates and mixtures thereof. Peroxy acids and their salts include peroxy organic acids such as peracetic acid, performic acid and other alkyl peroxy acids, and monoperoxy phthalate and mixtures thereof as well as inorganic peroxy acid salts such as persulfate, dipersulfate, percarbonate, perfosphate, and salts of perborate and persilicate of alkaline earth metals and alkali metals such as lithium, potassium, sodium, magnesium, calcium and barium and mixture thereof.
Regardless of its shape, the bleaching composition typically contains from about 0.1 percent by weight to about 10 percent by weight, in some embodiments from about 0.2 percent by weight to about 6 percent by weight, in some additions of from about 0.4 percent by weight to about 5 percent by weight, and in some embodiments, from 0.5 percent by weight about 4 percent by weight peroxide. It should be understood that the initial concentration of the peroxide immediately after formation of the composition. Because peroxides are known to break down in water, however, the concentration can vary over time. For example, urea peroxide is disassociated in urea and hydrogen peroxide in an aqueous solution. Hydrogen peroxide can also decompose in water and oxygen. No matter, a benefit of the present is that the peroxide can be sufficiently stabilized so that the peroxide content of the solution can be maintained at essentially the same level for a certain period of time. For example, the content of hydrogen hydroxide after being aged at room temperature (-25 degrees Celsius) for 2 weeks can still be from about 0.1 percent by weight to about 10 percent by weight, in some incorporations of from about 0.2 percent by weight to about 6 percent by weight, in some incorporations of from about 0.4 percent by weight to about 5 percent by weight and in some incorporations of about 0.5 percent by weight around 4 percent by weight.
The cell disintegrating agent is also employed in the decolorizing composition in an amount of from about 0.1 weight percent to about 10 weight percent, in some embodiments from about 0.5 weight percent to about 5 weight percent. percent by weight, and in some embodiments, from about 0.8 percent by weight about 4 percent by weight of the bleaching composition. The cell disintegrating agent is thought to interrupt the membrane of the red blood cells thereby boosting the ability of the peroxide to react with the hemoglobin and alter its color. A particularly suitable type of the cell disintegrating agent and its surfactant, such as a non-ionic surfactant, a non-ionic surfactant, a cationic surfactant, an amphoteric surfactant and / or a suionionic surfactant.
Suitable nonionic surfactants may include, for example, alkyl polysaccharides, alcohol ethoxylates, block copolymers, castor oil ethoxylates, oleyl alcohol keto ethoxylates, cetearyl alcohol ethoxylates, ethoxylates decyl alcohol, dinonyl phenol ethoxylates, dodecyl phenol ethoxylates, and capped ethoxylates, other amine ether derivatives, ethoxylated alkanolamides, ethylene glycol esters, fatty acid alkanolamides, fatty alcohol alkoxylates, ethoxylates of lauryl alcohol, alcohol ethoxylates, mono-branched, nonyl phenol ethoxylates, octyl phenol ethoxylates, oleyl amine ethoxylates, random copolymer alkoxylates, sorbitan ester ethoxylates, acid ethoxylates stearic acid, stearyl amide ethoxylates, bait oil fatty acid ethoxylates, bait amine ethoxylates, tridecanol ethoxylates, acetylenic ioles, polyoxyethylene sorbitols and the mixture thereof. Several specific examples of suitable nonionic surfactants include, but are not limited to methyl gluceth-10, PEG-20 methyl glucose distearate, PEG-20 methyl glucose sesquistearate, wall-10 Cll-15, ceteth-12, dodoxinol-12, laureth-15, castor oil PEG-20, polysorbate 20, steareth-20, polyoxyethylene-10 cetyl ether, polyoxyethylene-10 stearyl ether, polyoxyethylene-20 cetyl ether, polyoxyethylene-10 oleyl ether, polyoxyethylene-20 oleyl ether, a nonylphenol ethoxylated, an ethoxylated octylphenol, an ethoxylated dodecylphenol or an ethoxylated fatty alcohol (C6-C22), including 3 to 20 halides of ethylene oxide, polyoxyethylene-20 isohexadecyl ether, polyoxyethylene-23 glycerol laurate, polyoxyethylene-20 glyceryl stearate, PPG -10 methyl glucose ether, PPG-20 methyl glucose ether, polyoxyethylene-20 sorbitan monoesters, polyoxyethylene-80 castor oil, polyoxyethylene-15 tridecyl ether, polyoxyethylene-6 tridecyl ether, laureth-2, laureth-3, laureth-4, Castor oil PEG-3, PEG 600 dioleate, PEG 400 dioleate, and mixture thereof. Commercially available nonionic surfactants may include the trademark SURFINOL® range of acetylenic diol surfactants available from Air Products and Chemicals of Allentown Pennsylvania United States of America; the T EEN class of registered polyoxyethylene surfactants available from Fisher Scientific of Pittsburgh, Pennsylvania; and the TRITON class of polyoxyethylene surfactants (for example TRITON X-100 polyoxyethylene-10 isooctylcyclohexyl ether) available from Sigma-Aldrich Chemical Co. Of St. Louis, Missouri United States of America.
The non-ionic alkyl glycoside surfactants can be employed and are generally prepared by reacting a monosaccharide or a hydrolyzable compound with a monosaccharide with an alcohol such as a fatty alcohol in an acid medium. For example, U.S. Patent No. 5,527,892 and U.S. Patent No. 5,770,543 which are hereby incorporated in their entirety by reference thereto for all purposes, describe the alkyl glycosides and / or methods for their preparation. Suitable examples are commercially available under the names Glucopon ™ trademark 220,223,425,600 and 625, PLANTACARE® trademark, and PLANTAPON® trademark, all of which are available from Cognis Corporation of Ambler Pennsylvania United States of America. These products are a mixture of mono and alkyl oligoglucopyranosides with the alkyl groups based on the fatty alcohols derived from coconut and / or palm kernel oil. The Glucopon ™ trademark 220,225 and 425 are examples of particularly suitable alkyl polyglycosides. The Glucopon ™ trademark 220 is an alkyl polyglycoside containing an average of 1.4 glucosyl residues per molecule and a mixture of 8 to 10 carbon alkyl groups (average carbon per alkyl chain-9.1). Glucopon ™ trademark 225 is an alkyl polyglycoside related to linear alkyl groups having from 8 carbon atoms to 10 carbon atoms (average alkyl chain of 9.1 carbon atoms) in the alkyl chain. The Glucopon ™ trademark 425 includes a mixture of alkyl polyglycosides which individually include an alkyl group with 8, 10, 12, 14, or 16 carbon atoms (average alkyl chain - 10.3 carbon atoms). The Glucopon ™ trademark 660 includes a mixture of alkyl polyglycosides which individually include an alkyl group with 12, 14, or 16 carbon atoms (the average alkyl chain 12.8 of carbon atoms). The Glucopon ™ trademark 625 includes a mixture of alkyl polyglucosides which individually includes an alkyl group having 12, 14 or 18 carbon atoms (average alkyl chain 12.8 carbon atoms). Other suitable alkyl glycosides are available from Dow Chemical Co., of Midland, Michigan under the designation Triton ™ trademark, for example Triton ™ trademark CG-110 and BG-10.
Exemplary anionic surfactants include alkyl sulfates, alkyl ether sulfates, alkyl ether sulfonates, sulphonate esters of an alkylphenoxy polyoxyethylene ethanol, α-olefin sulphonates, β-alkoxy alkane sulphonates, sultanates of alkylauryl, alkylauryl sulfates, alkyl monoglyceride sulfonates, alkyl carbonates, alkyl ether carboxylates, alkyl phosphates, alkyl ether phosphates, sulfosuccinates, sarcosinates, octoxynol phosphates and nonoxynol , taurates, polyoxyethylene sulfates of fatty acid amide, or mixture thereof. Particular examples of anionic surfactants include, but are not limited to, C8-C22 alkyl sulfates, C8-C22 fatty acid acids, C8-C22 alkyl ether sulphates, having one mol or two moles of ethoxylation, the C8-C22 alkyl ether phosphates having one mole to three moles of ethoxylation, the C8-C22 alkyl sarcosinates, the C8-C22 sulphoacetates, the C8-C22 sulfosuccinates, the C8-C22 alkyl diphenyl oxide disulfonates, the carbonates C8-C22 alkyl, C8-C22 al-olefin sulfonates, methyl ester sulfonates and mixtures thereof. The C8-C22 alkyl group can be straight chain (for example lauryl) branched (for example 2-ethylhexyl). The cation of the anionic surfactant can be an alkali metal (for example sodium or potassium), ammonium, C1-C4 alkylammonium (for example mono-di-, tri-), or C1-C3 alkanolammonium (for example, mono-, di- -, tri). More specifically, such anionic surfactants may include but are not limited to lauryl sulfates, octyl sulfates, 2-ethylhexyl sulfates, potassium laureth phosphates, decyl sulfates, tridecyl sulfates, cocoates, lauroyl sarcosinates, lauryl sulfosuccinates, linear diphenyl oxide disulfonates, lauryl sulfosuccinates, the sulfates of lauryl ether (1 and 2 moles of ethylene oxide), the myristyl sulfates, the cetyl sulfates and similar surfactants.
Amphoteric and suteryionic surfactants may also be employed, wherein at least one of the aliphatic substituents contains from about 8 carbon atoms to 22 carbon atoms and at least one of the aliphatic substituents contains an anionic water solubilizing group. , such as a carboxy, sulfonate, or sulfate group. Some examples of amphoteric surfactants include but are not limited to betaines, alkylamido betaines, sulfobetaines, N-alkyl betaines, sultaines, amphoacetates, amphodiacetates, imidazoline carboxylates, sarcosinates, acylantofoglycinates, such as cocamidocarboxyglycinates and acylanopropionates, and combinations thereof. Additional classes of amphoteric surfactants include phosphobetaines and phosphibetaines. For example, some examples of such amphoteric surfactants include but are not limited to cocoamidopropyl betaine, lauramidopro-betaine, amidopropyl betaine from prairie foam, cocoyl sarcosinate sodium, sodium cocaanfoacetate, disodium cocoamphodiacetate, sarcosinate cocoyl ammonium, sodium cocoamphopropyl, cocodimethylcarboxymethylbetaine, lauryldimethyl carboxymethyl betaine, lauryldimethyl carboxyethyl betaine, cetyldimethyl carboxymethyl betaine, lauryl-bis- (2-hydroxyethyl) carboxymethyl betaine, oleydimethylgame carboxypropyl betaine, lauryl-bis- (2-hydroxypropyl) - carboxyethyl betaine, cocamidodimethyl propylsultaine, stirolamidodimethylpropylsultaine, laurylamido-bis- (2-hydroxyethyl) propylsultaine, cocoamide disodium 3-hydroxypropyl phosphobetaine, lauric myristic amido disodium 3-hydroxypropyl phosphobetaine, lauric myristic amido glyceryl phosphobetaine, lauric myristic amido carboxy disodium 3-hydroxip ropil phosphobetaine, the cocoamido propyl monosodium phosphitaine, the lauric myristic amido propyl monosodium phosphitaine, and mix of them. Suitable sutetraionic surfactants include, for example, alkyl amine oxides, silicone amine oxides, and combinations thereof. Specific examples of suitable sutetraionic surfactants include, for example, 4- [N, N-di (2-hydroxyethyl) -N-octadecylammonium] -butane-1-carboxylate, S- [S-3-hydroxypropyl-S- hexadecylsulfonium] -3-hydroxypentane-1-sulfate, 3- [P, P-diethyl-P-3, 6, 9-trioxatetadexocylphosphonium] -2-hydroxypropane-1-phosphate, 3- [N, N-dipropyl-N- 3-dodecoxy-2-hydroxypropylammonium] -propane-1-phosphonate, 3- [N, -dimethyl-N-hexadecylammonium) propane-1-reattate, 3- (N, N-dimethyl-N-hexadecylammonium) -2-hydroxypropane -l-sulfonate-4- [N, N-di (2-hydroxyethyl) -N- (2-hydroxydodecyl) ammonium] -butane-1-carboxylate, 3- [S-ethyl-S- (3-dodecoxy-2 -hydroxypropyl) sulfonium] -propane-1-phosphate, 3- [P, P-dimethyl-P-dodecylphosphonium] -propane-1-phosphate, 5- [N, N-di (3-hydroxypropyl) -N-hexadecylammonium] -2-hydroxy-pentane-1-sulfate, and combinations thereof.
Cationic surfactants can also be used in the present invention such as quaternized amine ethoxylates, quaternary ammonium salts, polymeric ammonium salts, pyridinium alkyl salts, ammonium aryl salts, ammonium alkyl aryl salts, the silicon quaternary ammonium compounds and combinations thereof. Specific examples of cationic surfactants include behentrimonium chloride, stearalkonium chloride, diesterealconium chloride, chlorhexidine digluconate, polyhexamethylene biguadine (PHMB), polyaminopropyl biguanide, cetylpyridinium chloride, benzammonium chloride, chloride of benzalkonium and combinations thereof.
The rate at which peroxides decompose in an aqueous solution depends on many factors, one of which includes the presence of various metallic impurities, such as iron, manganese, copper and chromium, which may be catalyzing decomposition. Because the bleaching composition is typically exposed to metal impurities (eg, calcium ions in the water) during mixing, storage or use, a metal chelating agent is employed in the present invention in an amount from about 0.05 percent by weight to about 10 percent by weight, in some incorporations of from about 0.1 percent by weight to about 5 percent by weight, and in some additions, from about 0.5 percent by weight to about 4 percent by weight of the decomposition of spot discharge. Without wishing to be bound by a theory, it is believed that the metal chelating agent can regulate the exposure of the peroxide to such metal ions and thus limit the premature release of the active peroxide. The chelating agent can also help to sequester iron from within the heme groups to ensure the desired color change. The chelating agent may include, for example, aminocarboxylic acids (for example, ethylenediaminetetraacetic acid) and salts thereof, hydroxycarboxylic acids (for example citric acids, tartaric acid, ascorbic acid, etc.) and salts thereof, polyphosphoric acids (eg. example, tripolyphosphoric acid, hexametaphosphoric acid, etc.) and salts thereof and others. Desirably the chelating agent is very capable of forming multiple coordination bonds with the metal ions to reduce the possibility that any of the free metal ions will interact with the peroxide. An embodiment, for example, a chelating agent of that nature containing two or more aminodiacetic acid groups (sometimes referred to as iminodiacetic) or salts thereof can be used. The aminodiacetic groups generally have the following structure: An example of such chelating agent is ethylenediaminetetraacetic acid (EDTA) which has the following structure: Examples of suitable ethylenediaminetetraacetic acid salts include ethylenediaminetetraacetic acid disodium calcium, ethylenediaminetetraacetic acid ammonium, ethylenediaminetetraacetic acid dipotassium and disodium, ethylenediaminetetraacetic acid trisodium and tripotassium, ethylenediaminetetraacetic acid tetrasodium and tetrapotassium. Still other examples of similar aminodiacetic acid chelating agents include but are not limited to butylene diaminetetraacetic acid, (1,2-cyclohexylenediaminetetraacetic acid (CyDTA), diethylenetriaminepentaacetic acid (DTPA), ethylene diaminetetrapropionic acid, (hydroxyethylene) ethylenediaminetriacetic acid (HEDTA), triethanolamine EDTA, triethylenetetraminehexacetic acid (TTHA), 1,3-diamino-2-hydroxypropane-N, N, N'-tetraacetic acid (DHPTA), methyliminodiacetic acid, propylene diaminetetraacetic acid, ethylenediminodipropanedionic acid (EDDM), 2,2'-bis (carboxymethyl) iminodiacetic acid (ISA), ethylenediminodibutandioic acid (EDDS), and others.
Still other suitable chelating agents include?,?,? ' , '-etilenediaminetetra (metillenofosfónico) acid (EDTMP), nitrilotrimetil phosphonic acid, 2-arainoetil dihydrogen phosphate, 2, 3 -dicarboxipropano- 1, 1-diphosphonic acid, the meso-oxybis (butanediónico acid) (ODS) acid and others.
Due to its strong oxidation potential in aqueous solutions, the peroxide compound can attack other components of the decolorization composition (for example the cell killing agent). In this aspect, the composition of the present invention also employs an antioxidant in an amount of from about 0.0005 percent by weight to about 5 percent by weight, in some embodiments from about 0.001 percent by weight to about 1 percent by weight, and in some embodiments, from about 0.005 percent by weight to about 0.5 percent by weight of the composition. Without wishing to attempt to be bound by a theory, it is believed that the potential for antioxidant reduction allows it to act as a sacrificial material for oxidation by peroxide, which allows the other components of the composition to function in its capacity. desired in the discoloration of a stain. Suitable antioxidants may include, for example, acetilcistaina, ascorbic acid, derivatives of ascorbic acid alkyl, 3 -tert-butyl-4 -hidroxianisol, 2,6-di-tert-butyl-p-cresol, caffeic acid , chlorogenic acid, cysteine, cysteine hydrochloride, decylmercaptomethyl-imidazole, diamityldroquinone, dicetyl thiodipropinate, digaloyltriolate, delauryl thiodipropionate, dimyristyl thiodipropionate, dioleyl tocopheryl methylsilanol, rutinyl disodium bisulfate, distearyl thiodipropionate, dithiridecyl, thiodipropionate, propyl galate, dodecyl galate, acid erythorbic, ethyl ferulate, ferulic acid, hydroquinone, p-hydroxyanisole, hydroxylamine hydrochloride, hydroxylamine sulfate, isooctyl thioglycolate, kojic acid, medecasicosida succinate metoci-PEG-7-Rutinyl, nordihydroguaiaretic acid, octyl galate, peniltiolicolico acid , floroglucinol, propil galate, rosamarinic acid, rutin, sodium erythorbate, sodium thioglycolate, furfural sorbitol, thiodiglycol, tiodiglicolamida, thiodiglycolic acid, thiodiglycolic acid, thiolactic acid, thiosalicylic acid, tocofereth-5, tocofereth-10, tocofereth- 12 tocoferth-18, tocofereth-50, tocofersolan, tocopherol (vitamin E for example) and its derivatives (eg vitamin E derivatives such as vitamin E acetate, linoleate vitamin E nicotinate, vitamin E and vitamin E succinate), o-tolylbiguanide, tris (nonylphenyl) phosphite, alpha acids hidroxicarboxílieos (e.g. glycolic acid, lactic acid, mandelic acid) and salts thereof. Of these, the tocopherols and their derivatives are particularly desired and can act as antioxidants and be logically active, even in the cell membrane.
In addition to those mentioned above, the composition of the present bleaching invention of the present invention may also contain a variety of other optional ingredients. For example, the bleaching composition may contain a preservative or a preservative system to inhibit the growth of the microorganisms over an extended period of time. Suitable condoms for use in the present compositions may include, for example, registered Kathon CG®, which is a mixture of methylchloroisothiazolinone and methylisothiazolinone available from Rohm & Haas; the registered trademark Neolone 950®, which is methylisothiazolinozolinone available from Rohm & Haas, DMDM hydantoin (for example Glidant Plus, Lonza, Inc., of Fair Lawn, New Jersey United States of America); iodopropinyl butylcarbonate; benzoic asters (parabens), such as methylparaben, propylparaben, butylparaben, ethylparaben, isopropylparaben, isobutylparaben, benzilparaben, methyl paraben sodium and propyl paraben sodium 2-bromo-2-nitropropane-l, 3-diol; of benzoic acid; the imidazolinyl urea; the diazolinyl urea; and similar. Still other condoms may include ethylhexylglycerin (Sensiva SC 50 by Schulke &Mayr), phenoxyethanol (Phenoxyethanol by Tri-K Industries), capryl glycol (Lexgard O by Inolex Chemical Company, Symdiol 68T (a mixture of 1,2-hexanediol, capryl glycol and tropolone by Symrise) and Symocide PT (a mixture of phenoxyethanol and tropolone by Symrise).
The stain discharge composition can also include various other components as are well known in the art such as binders, humectants, colorants, biocides or biostats, electrolyte salts, pH adjusters, etc. Examples of suitable humectants include, for example, ethylene glycol; diethylene glycol; glycerin; polyethylene glycol 200, 400 and 600; propane-1,3-diol: sorbitol; Sodium PCA; hyaluronic acid, propylene glycol; butylene glycol; propylene glycol monomethyl ethers, such as Dowanol P (Gallade Chemical Inc., Santa Ana, California United States of America); polyhydric alcohols, or combinations thereof.
To form the stain discharge composition, the components are typically first dissolved or dispersed in a polar solvent (eg water). For example, one or more of the aforementioned components can be mixed by the solvent either sequentially or simultaneously to form the spot discharge composition. Although the current concentration of the solvent employed will generally depend on the nature of the stain discharge composition and its components, it is nevertheless typically present in an amount of from about 50 weight percent to about 99 weight percent. , in some incorporations of from about 60 weight percent to about 99 weight percent and in some incorporations of from about 75 weight percent to about 98 weight percent of the spot discharge composition.
The spot discharge composition of the present invention to a spot is not critical as long as an effective amount is delivered. For example, the spot discharge composition can be provided in the form of a pump or an aerosol spray, gel, stick, cream, lotion, etc. Alternatively, the stain discharge composition can be applied to the solid support for subsequent contact with a stain. The nature of the solid support may vary depending on the intended use and may include materials such as film, paper, non-woven fabrics, woven fabrics, woven fabrics, foam, glass, etc. Desirably, the solid support is a cleaning cloth configured for use on articles of clothing or other surfaces such as a baby wiping cloth, an adult wiping cloth, a hand wiping cloth, a face cleaning cloth, a cosmetic cleaning cloth, a household cleaning cloth, an industrial cloth, a personal cleaning cloth, a cotton ball, a cotton tip swab and others.
The cleaning cloth may be formed from one or any of a variety of materials as is known in the art. For example, the cleaning cloth may include a non-woven fabric containing an absorbent material of sufficient strength and absorbency for use in the desired applications. For example, the non-woven fabric may include the absorbent fibers formed by a variety of pulping processes, such as kraft pulp, sulfite pulp, thermomechanical pulp, etc. The pulp fibers may include softwood fibers having an average fiber length of more than 1 millimeter and particularly of from about 2 to 5 millimeters based on a length-heavy average. Such soft wood fibers may include, but are not limited to, the soft wood of the south, the soft wood of the north, the red cedar, the birch, the pine (for example the southern pines) the fir (for example the black spruce) ) the combinations of them and others. Commercially available examples of pulp fibers suitable for the present invention may include those of Weyerhaeuser under the trade designation "Soft Pulp". Hardwood fibers such as eucalyptus, Maple, poplar pine and others can also be used. In certain embodiments, the eucalyptus fibers may be partially desired to increase more softness of the tissue. Eucalyptus fibers can improve brilliance, increase the opacity and change the pore structure of tissue to increase its transmission capacity. Also, if desired, secondary fibers obtained from recycled materials can be used, such as fiber pulp from such sources, for example, newspaper, carbon paper and office waste. In addition, other absorbent fibers that can be used in the present invention such as abaca, sabai grass, benzene silicate, a pineapple leaf, cellulosic esters, cellulose ethers, cellulose nitrates, cellulose acetates, cellulose acetates butyrates, ethyl cellulose, cellulose regenerated (viscose or rayon), and others.
The synthetic thermoplastic fibers can also be used in the non-woven fabric, such as those formed of polyolefins, for example polyethylene, polypropylene, polybutylene, etc .; polytetrafluoroethylene; polyesters, for example, polyethylene terephthalate and other; polyvinyl acetate; polyvinyl chloride acetate; polyvinyl butyral; acrylic resins, for example, polyacrylate, polymethylacrylate, polymethylmethacrylate and others; polyamides, for example, nylon; polyvinyl chloride; polyvinylidene chloride; polyvinylidene fluoride; polystyrene; polyvinyl alcohol; · Polyurethanes; polylactic acid; copolymers thereof and others. Because many synthetic thermoplastic fibers are inherently hydrophobic (non-perishable) such fibers can optionally be made more hydrophilic (eg non-wettable) such fibers can optionally be made more hydrophilic (eg wettable) by treatment with a surfactant solution prior to the formation , during the formation and / or after the tissue formation. Other known methods for increasing wettability may also be employed as described in U.S. Patent No. 5,057,361 issued to Sayovitz et al., Which is hereby incorporated by reference in its entirety for all purposes .
If desired, the non-woven fabric material can be a composite containing a combination of synthetic thermoplastic polymer fibers and absorbent fibers, such as polypropylene and pulp fibers. The relative percentage of such fibers can vary over a wide range depending on the desired characteristics of the non-woven composite. For example, the non-woven composite may contain from about 1 weight percent to about 60 weight percent, in such weightings from about 5 weight percent to about 50 weight percent, and in some incorporations, from about 10 percent by weight to about 40 percent by weight of synthetic polymer fibers.
The nonwoven composite can similarly obtain from about 40 percent by weight to about 99 percent by weight, in some embodiments from about 50 percent by weight to about 95 percent by weight, and in some incorporations of from about 60 weight percent to about 90 weight percent of the absorbent fibers.
The nonwoven composites can be formed using a variety of known techniques. For example, the non-woven composite can be a "coform material" containing a mixture or a stabilized matrix of thermoplastic fibers and a second non-thermoplastic material. As an example, coform materials can be made by a process in which at least one matrix head is blown with fusion is arranged near a conduit through which other materials are added to the fabric while it is being formed. Such other materials may include, but are not limited to, fibrous organic materials such as woody pulp or non-woody pulp such as cotton, rayon, recycled paper, pulp fluff and also super absorbent particles, inorganic and / or organic absorbent materials, short fiber polymer treated and others. Some examples of such coform materials are described in U.S. Patent No. 4,100,324 issued to Anderson et al., In U.S. Patent No. 5,284,703 to Everhart, and others; and in U.S. Patent No. 5,350,624 issued to Georger et al .; all of which are incorporated herein in their entirety by reference to the same for all purposes. Alternatively, the nonwoven composite can be formed by hydraulically entangling the fibers and / or the filaments with high pressure water jet streams. The hydraulically entangled nonwoven composites of short length fibers and continuous filaments are described, for example, in the patent of the United States of America No. 3,494,821 granted to Evans and in the patent of the United States of America No. 4,144,370 granted to Bouolton, which are incorporated here in their entirety by reference to the same for all purposes The hydraulically entangled nonwoven composites of a non-woven fabric of continuous filaments and pulp fibers are described for example in U.S. Patent No. 5,284,703 issued to Everhart et al. And in the United States of America patent No. 5,315,864 granted to Anderson and others, which are hereby incorporated in their entirety by reference thereto for all purposes.
Notwithstanding the materials used to form the cleaning cloth, the basis weight of the cleaning cloth is typically from about 20 grams per square meter to about 200 grams per square meter (gsm), and in some embodiments from about 37 grams. per square meter to around 100 grams per square meter. The lower weight basis products may be particularly well suited for use as light duty cleaning cloths, while the base weight and higher weight products may be better adapted for use as industrial cleaning cloths. The cleaning cloth can assume a variety of shapes, including but not limited to a generally circular, oval, square, rectangular, or irregular shape. Each individual cleaning cloth can be arranged in a bent configuration and stacked one on top of the other to provide a pile of wet cleaning cloth. Such bent configurations are well known to those skilled in the art and include a bent-c, a bent-z, a bending of rooms and other configurations.
For example, the cleaning cloth may have an unfolded length of from about 2.0 centimeters to about 80.0 centimeters, and in some embodiments, from about 10.0 centimeters to about 25.0 centimeters. Cleaning cloths can similarly have an unfolded width of from about 2.0 centimeters to about 80 centimeters, and in some embodiments from about 10 centimeters to about 25.0 centimeters. The stack of bent cleaning cloths can be placed inside the container, such as a plastic tube to provide a package of cleaning cloths for eventual sale to the consumer. Alternatively, the wiping cloths may include a continuous strip of material which has perforations between each wiping cloth in which it may be arranged in a pile or wound in a roll for refill. Various suitable dispensers, containers and systems for delivering cleaning wipes are described in U.S. Patent No. 5,785,179 issued to Buczwinski et al., In U.S. Patent No. 5,964,351 issued to Zander; in the patent of the United States of America No. 6,030,331 granted to Zander; in the patent of the United States of America No. 6,158,614 granted to Haines, and others; in U.S. Patent No. 6,269,969 issued to Huang, et al .; in U.S. Patent No. 6,269,970 issued to Huang, et al .; and in U.S. Patent No. 6,273,359 issued to Newman and others, which are hereby incorporated by reference in their entirety for all purposes.
In the embodiments of the present invention, the stain discharge composition is incorporated in a solution of a wet cleaning cloth for application to the cleaning cloth. The stain discharge solution was, if desired, to include other components for cleaning, disinfection, sanitation, etc., as described in United States Patent No. 6,440,437 issued to Krzysik, and others; in U.S. Patent No. 6,028,018 issued to Amundson et al .; in the patent of the United States of America No. 5,888,524 granted to Cole; in U.S. Patent No. 5,667,635 issued to Win et al .; and in U.S. Patent No. 5,540,332 issued to Kopacz and others, which are hereby incorporated by reference in their entirety for all purposes. The stain discharge composition can be applied using any known and suitable method known in the art, such as spraying, embedding, saturation, impregnation, brush or brush coating and others. The amount of the solution discharged from stains used may vary depending on the type of cleaning material used, the type of container used to store the wipes, the nature of the stain discharge formulation, and the desired end use of wipes. Generally, each cleaning cloth contains from about 150 percent by weight to about 600 percent by weight, in some embodiments from about 200 percent by weight to about 550 percent by weight, in some embodiments, of from about 300 weight percent to about 500 weight percent of a stain discharge solution based on the dry weight of the cleaning cloth.
According to the present invention a stain that is treated with the stain discharge composition can be discharged or neutralized within a period of about 30 minutes or less, in some embodiments of about 15 minutes or less, in some embodiments, of about 5 minutes or less. The resulting color change can be observed visually or detected by an optical reader, such as one that relies on colorimetry as described below.
The stain discharge composition present may contain a solvent or a combination or multiple solvents (or liquid medium) but a desirable incorporation incorporates a single solvent (water). According to the desired incorporation, two ingredients are all mixed together in the water, and the ingredients can be mixed together in a stable manner. Since certain ingredients are not compatible with hydrogen peroxide, in other embodiments, the ingredients of the formulation can be stored in multiple chambers of a dispenser until before use, when these can be mixed together before the assortment. For example, in an embodiment that includes a cell killing agent that was not compatible with the peroxide, the formulation must still be stable by separating these two components until they are ready to be assorted.
The present invention can be better understood with reference to the examples listed in the accompanying figures of the tables of the following examples.
Test Methods The aging was carried out on liquid samples of 4.5 grams and the cleaning cloths were loaded with 330 percent added above the level of the formulation. The liquid samples were placed in ovens of 40 degrees Celsius and 50 degrees Celsius, as well as they were kept at room temperature with the pull points at one week like two weeks, four weeks, six weeks and eight weeks. The cleaning cloths were assembled, compressed to ensure that the cleaning cloths take the fluid (for example rolled as a lathe) wrapped in a tin sheet with the exempt positions, placed in a plastic bag that can be sealed and placed over ovens at room temperature. After aging the concentration of hydrogen peroxides (H2O2) was detected analytically using conventional techniques. More specifically, a titanium salt was added to the test solutions to induce a color change. The absorbance reading of the resulting example was then detected through spectrophotometry, where the intensity of the reading was promotional at the H2O2 concentration.
I.
The ability to form a stable peroxide bleaching composition was demonstrated. Two bleaching example formulations were tested under three different conditions, for a total of twelve bleaching samples. Samples 1-6 were formed with a composition as set forth below in Table 1.
Table 1: Composition of Samples 1-6 Samples 1-3 are liquid samples prepared while adding the components of the formulation to a laboratory beaker mixing until they are homogeneous. In samples 4-6, the liquid composition is expressed to coform cleaning cloths. In particular, about 4.5 grams of the formulation were placed in several very small containers (sufficient for 1 per pull point per sample) were placed at the appropriate temperature for evaluation. Samples of a coform cleaning cloth (sufficient for a cleaning cloth per pull point) are applied with a solution at 330 percent dry weight, wrapped in metal sheet with the taped seams, placed in a plastic bag and They added at the appropriate room temperature (40 degrees Celsius, 50 degrees Celsius or at room temperature). Once formed, samples 1-6 were aged at various temperatures (room temperature, 40 degrees Celsius, 50 degrees Celsius) as described above. The results are below table 2.
Concentration of Hydrogen Peroxide of the aged samples ** Samples too dry to extract any solution.
Samples 7-16 that are formed according to composition are set forth in Tables 3 and 4.
Table 3: Composition of Samples 7-11 Table 4: Composition of Samples 12-16 Samples 7-11 were prepared liquid samples while adding the components of the formulation to a beaker and mixing until homogeneous. Samples 11-16 were samples of a coform cleaning cloth and (sufficient for a cleaning cloth per pull point) are Applied with a solution at 330 percent dry weight, wrapped in metal paper with taped seams, placed in a plastic bag and added to the appropriate temperature environment (40 degrees Celsius, 50 degrees Celsius, or room temperature) ). Once formed the samples 7-16 were aged at various temperatures (ambient temperature 40 degrees Celsius and 50 degrees Celsius) as described above. The results are set down below in table 5.
Table 5: Concentration of Hydrogen Peroxide from aged samples ** Samples too dry to extract any solution.
As indicated in Table 5, the stability of the samples formed without an antioxidant (samples 7-16) were not as good as samples formed with an antioxidant (samples 1-6, Table 4).
B.- Color Measurement In color measurement a person can certainly evaluate the relative shades and nuances of the color by means of the comparison using the naked eye. For the standard objective, however, an evaluation method that provides the observer with numerical data along with a process to quantify the data is necessary using a spectrophotometer, a color interpretation method: Delta -E (??). The intensity and color change can be measured using a conventional test known as "CIELAB", which is discussed in the book Pocket Guide for Digital Printing by F. Cost, Delmar Publishers, of Albany, New York, United States of America, ISBN 0-8273-7592-1, pages 144 and 145, whose contents of said work are incorporated herein by reference. This method defines three variables, L *, a *, and b *, which correspond to three characteristics of a perceived color based on the opposing theory of color perception. The three variables have the following meaning: L * = Clarity (or brightness), varying from 0 to 100, where 0 = dark and 100 = light; A * = Red / green axis, varying approximately from -100 to 100; the positive values are reddish and the negative values are greenish; b * = Yellow / Blue axis, varying approximately from -100 to 100; the positive values are yellowish and the negative values are blue.
Due to CIELAB color space is something visually uniform, a unique number can be calculated which represents the difference between the two colors as perceived by a human. This difference is called ?? and it is calculated by taking the square root of the sum of the squares of three differences (AL *, Aa *, and Ab *) between the two colors.
In the CIELAB color space, each unit ?? it is approximately equal to a "just remarkable" difference between the two colors. CIELAB is therefore a good measure for a color specification system independent of the target device that can be used as a color space reference for the purpose of color handling and expression of color changes. Using this test, the color intensities (L *, a *, and b *) can then be measured using, for example, a spectrophotometer held in the hand of Minolta Co., Ltd, of Osaka, Japan (Model # CM2600d). This instrument uses the D / 8 geometry that makes up CIE No. 15, ISO 7724/1, ASTME1164 and JIS Z8722-1982 (8-degree vision system / diffuse lighting). The light D65 reflected by the specimen surface at an angle of 8 degrees to the normal of the surface is received by the optical specimen measuring system. Still other suitable devices for measuring the intensity of the visual color can be used in the present invention. For example, a suitable reflectance reader is described in the publication of U.S. Patent Application No. 2003/0119202 to Kaylor, et al., the contents of which are incorporated herein by reference.
In accompanying FIG. 3, the stained undergarments are cleaned using the present stain discharge formulation and method (FIG. 3A) and competitive commercial cleaning solutions (FIGS. 3B-D). One can see the contrast between the removal effectiveness of the spot removal in Figure 3A where the spot C has completely disappeared, and the other panels in Figures 3B-D, in which there is a shadow or worse of the spot . Even when the present composition completely removes the stain from the textile substrate when it was treated, an observer during the course of cleaning that the invention produces a color change, in which the color of the stain is reduced by a value of > 5 ??. Generally, the color of the stain is reduced by at least one value ?? of 15, but more than 20-30 is typical; often a value ?? of > 40 or 50 The dye or stain is discharged within a period of around. 30 minutes or less after treatment, but typically becomes visually indistinguishable from the naked eye under about 10-15 minutes, most desirably under about 3-5 minutes.
C. - Method and Equipment According to another aspect of the present invention, we have developed a very effective method for unloading a stain from a textile substrate. The method utilizes the stain removal potential of the stain discharge composition described in United States Patent Application No. 11 / 847,549, but appears to be even more effective with the present composition with a relatively higher viscosity. Generally, the method comprises: providing a textile substrate having an organic dye or organic stain on a first side; applying an absorbent substrate against one side of said textile substrate either directly in contact with said first face with the stain or on a second coating behind or opposite said stain; treating with a stain discharge composition the side of said opposite textile substrate of said absorbent substrate, such that said stain discharge composition is pulled through the textile substrate together with the stain into the absorbent substrate.
One can use a dispenser filled with the present spot discharge composition. The spout may be capable of containing a liquid thinned with water without runoff and of supporting the amount of hydrogen peroxide in the formulation without degradation of the material from which the spout is made. Ideally, the spout should also be capable of a direct point application and provide agitation to the stain as the composition is stocked. These dispensers may include, but are not limited to tubes, bottles, rolling balls or pen type applicators. A common material inert to hydrogen peroxide would be a high density polyethylene (HDPE), although there may be others available on the market that may be suitable for the creation of the spout.
The absorbent material must be capable of absorbing the fluid and retaining its shape during the cleaning process. The material may have a barrier of some luck on one side thereof to protect a user's hands from the fluid during cleaning, such as a plastic or a sheet metal layer. Ideally, the absorbent material will be able to be discarded after the treatment, since the blood stains are annoying and not hygienic. The absorbent substrate can be selected from a variety of different textiles or fabrics, for example, cotton or microfiber textiles, absorbent sponges (natural or synthetic), absorbent sponges, any dry base sheet technology that is currently used in the cloths wet cleaners (coform, placed by air, tied with yarn, blown with fusion, hydrotex, etc.) Paper towels (of which many kinds are available) absorbent material alone or incorporated in another technology previously listed. Based on water absorption of cotton textiles, since cotton is the most common used for underwear or other clothing, and is difficult to dry. The following textile varieties are more desirable and suitable absorbent substrate types including air-laid cellulose substrate with about 50-60 percent super homogeneous blended super absorbent; a coform; a fabric, or a substrate tied with cotton yarn that is whitened or unbleached; 100 percent commercial cotton padded squares available as used in cosmetic applications; and combinations of the above in a laminated structure.
The method, according to the embodiment, makes use of the stabilized stain discharge composition contained within an appropriate applicator, dispenses the composition and rubs it onto a stained textile on the first side or front side, of the stain and applying a absorbent material from a second side or back or opposite side of the textile substrate with stain, which is changed or moved to clean the dry area upon becoming the associated absorbent material of the stain or reaches its maximum absorption capacity. This method of use pulls the cleaning solution (either as a liquid, a gel, or a paste depending on the particular high or low viscosity of the material is closed through the textile fabric of a garment and inside the absorbent material helping to clean In several ways: First, the method of use facilitates cleaning by solvating and pulling some of the blood stain out of the fibers of the garment and into the absorbent substrate, which actively removes part of the stain physically from inside the garment. Second, the method of use helps move the stain by keeping the displacement and flow of the active agents in the relatively short stain discharge composition through the textile. for example by placing the affected area of a garment on the absorbent substrate can not pull the discoloration into the stain vertically from the opposite side of the stain to the bottom side of the stain while minimizing lateral or horizontal fluid movement or movement of fluid from the stain site to non-stained sites of the garment immediately adjacent to the stain site. Third, upon reaching the absorbent substrate material its maximum absorbent capacity in one area, according to the method, one can adjust the absorbent substrate or move it to expose the garment to another clean dry area as to prevent the garment from re-absorbing the stained or colored fluids.
. In another example, the absorbent material is placed in the open palm of the hand and is handled so that it resists contact with the underside of the stain. With the other hand, the stabilized decolorizing composition is applied to the front side of the stain with agitation using the spout. When the absorbent material is soiled, it is moved so that a clean area of the absorbent material is in contact with the underside of the stain and the treatment continues. This assortment with the agitation and movement of the absorbent material is continued until the stain is completely removed. After treatment, the garment may continue to be worn or it may be washed as normal.
The method shows superior cleansing, specifically on menstrual blood stains, and quickly removes stains that are wet and dried. Empirical tests using various dispensers, types of dispensers and cleaning protocols indicate that the present method and compounds appear to clean faster and more completely than the bleaching composition stabilized in other forms. For example, the following methodologies were explored: two wet cleaning cloths loaded with an aggregate level of 330 percent stabilized bleached composition was rubbed on the front and the back side of the stain. The cleaning method of the spot discharge composition can remove stains typically within about one to three minutes. In some cases as quickly as in 30 seconds the stain is completely removed.
A second set of experiments demonstrated the cleaning efficiency of the present spotting composition and the cleaning method. Figure 3 shows a series of photos taken of cotton undergarments that have been similarly stained and treated with the representative examples of the present composition of the invention and the cleaning system and other on-the-go competitive cleaning products and methods commercially available. Figure 3a shows the garment after having been treated with the present invention for about 1-2 minutes. Figures 3B, 3C and 3D are images of the garments treated with competitive products and methods after about 3 minutes. As one can see, the present composition and the stain removal method again delivers a higher cleaning capacity (or effectiveness), more quickly (-1: 30 vs. -3: 00 minutes) and completely more than all the products current competitive and proven previous methodologies.
Even when the invention has been described in detail with respect to the specific incorporations thereof it will always be made by those skilled in the art, to achieve an understanding of the foregoing, that alterations, variations, equivalents of these additions can easily be conceived. Therefore, the scope of the present invention must be evaluated as that of the attached clauses and any equivalent thereto.

Claims (23)

1. A stain discharge composition comprising: about 0.10 percent by weight to about 10 percent by weight of an oxidizing agent, from about 0.1 percent by weight to about 10 percent by weight of at least of a cell destruction agent, from about 0.05 percent by weight to about 10 percent by weight of at least one chelating agent, from about 0.0005 percent by weight about 5 percent by weight of at least one antioxidant, from about 0.001 percent by weight to about 10 percent by weight of a thickening agent, and from about 50 percent by weight about 99.9 percent by weight of at least one polar solvent.
2. A stain removal equipment comprising: a number of absorbent substrates that are adapted to pull moisture out of a treated stain area, a spout containing a stain discharge composition with a polar or aqueous solvent medium according to clause 1; and a stain agitating device, which is configured either separately or as an integral part of said spout; the composition having an oxidizing agent, at least one cell killing agent, at least one chelating agent, at least one antioxidant, a thickener and a polar solvent.
3. A method for unloading a stain from a textile substrate, the method comprises providing a textile substrate, permeable to liquid, having an organic stain or stain on a first side; applying an absorbent substrate against one side of said textile substrate either directly in contact with said first face with the stain on a second face behind or opposite from the stain; deal with the stain discharge composition according to clause 1, the side of the opposite textile substrate of said absorbent substrate, so that the stain discharge composition pulled through said textile substrate with the stain inside the absorbent substrate.
4. The method as claimed in clause 3, characterized in that it comprises mechanically using or physically stirring the textile substrate or stain during or after the treatment step either manually or with a device.
5. The method as claimed in clause 3 characterized in that said spot is located between said absorbent substrate and a source direction from which the treatment is applied.
6. The method as claimed in clause 3, characterized in that said invention produces a color change that can be observed in which the color of the stain is reduced by at least one value ?? > 5.
7. The method as claimed in clause 8 characterized in that the color of the stain is reduced by a value ?? around 15
8. The method as claimed in clause 3 characterized in that said dye or spot is discharged within a period of about 30 minutes after the treatment.
9. The method as claimed in clause 10 characterized in that said dye or spot is discharged within 15 minutes after the treatment.
10. The invention as claimed in any one of clauses 2 or 3 characterized in that said absorbent substrate is formed of at least one or a combination of the following: a paper towel material, an absorbent cellulose-based fabric, sponge or absorbent foam, a non-woven fabric base sheet material, or a super absorbent material.
11. The invention as claimed in any one of clauses 2 or 3, characterized in that the absorbent substrates are formed of at least one of the following or of the combinations thereof in a laminated form: a) a coform substrate or hydroentanglement, b) a fabric placed by air of cellulose with about 50-60 percent of the superabsorbent homogeneously mixed there, c) a fabric bound with cotton cellulose yarn, or od cotton quilted squares.
12. The invention as claimed in any one of clauses 2 or 3 characterized in that said polar solvent is water.
13. The invention as claimed in any one of clauses 2 or 3 characterized in that said composition has a viscosity of between at least 10 cP and about 150,000 cP.
14. The invention as claimed in any one of clauses 2 or 3 characterized in that said thickener includes clay, starch, cellulose, gum, fatty acid, fatty alcohol, hydrophilic colloidal particles, polyoxyethylene glycol or polyoxyethylene glycol derivatives including esters and fatty acid ethers or a combination thereof.
15. The invention as claimed in any one of clauses 2 or 3 characterized in that the oxidizing agent is a peroxide or a peroxide releasing material or includes a hydrogen peroxide or an organic peroxide complex.
16. The invention as claimed in any one of clauses 2 or 3 characterized in that the peroxide constitutes from about 0.4 percent by weight to about 5 percent by weight of the composition.
17. The invention as claimed in any one of clauses 2 or 3 characterized in that the cell killing agent is a surfactant, and the cell killing agent constitutes from about 0.5 weight percent to about 5 weight percent. percent by weight of the spot discharge composition.
18. The invention as claimed in any one of clauses 2 or 3 characterized in that the chelating agent includes an aminocarboxylic acid, a salt of an aminocarboxylic acid, or a combination thereof and a chelating agent constitutes from about 0.1 percent by weight to about 5 percent by weight of the composition.
19. The invention as claimed in any one of clauses 2 or 3 characterized in that the chelating agent includes ethylenediaminetetraacetic acid (EDTA), a salt of ethylenediaminetetraacetic acid (EDTA) or a combination thereof.
20. The invention as claimed in any one of clauses 2 or 3 characterized in that the antioxidant includes the tocopherol or a derivative thereof.
21. The invention as claimed in any one of clauses 2 or 3 characterized in that the antioxidant includes vitamin E acetate, vitamin E linolate, vitamin E nicotine, vitamin E succinate, or a combination thereof and the antioxidant it constitutes from about 0.001 percent by weight to about 1 percent by weight in the composition.
22. The invention as claimed in any one of clauses 2 or 3 characterized in that the thickening agent includes a clay, starch, cellulose, gum, fatty acid, fatty alcohol, hydrophilic colloidal particles, polyoxyethylene glycol or polyoxyethylene glycol derivatives including esters and ethers of fatty acid or a combination thereof.
23. The invention as claimed in any one of clauses 2 or 3 characterized in that said solvent medium is in the form of either a liquid, a gel, or a semi-solid. SUMMARY A cleaning composition is provided that can discharge the color of blood, menstrual fluids or other organic stains. The present invention achieves a balance between control of unwanted liquid spreading by lateral transmission on a stained textile fabric to decrease the size of wet spots and maintain the cleaning efficiency of the composition by means of specific classes of thickening agents. The composition includes an oxidizing agent such as peroxides, an agent for the destruction of cells, a chelating agent and an antioxidant, a thickener and other optional ingredients that are selectively employed to achieve an aqueous-based composition that exhibits good shelf stability. and good stain removal properties. The thickening agent may include a cellulose material of clay, starch, gum, fatty acid, fatty alcohol, hydrophilic colloidal articles, polyoxyethylene glycol or polyoxyethylene glycol derivatives including fatty acid esters and ethers or a combination thereof.
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