DD279899B1 - POWDERFUL CLEANING AGENT WITH INCREASED DETACHING EFFECT - Google Patents

Description

Characteristic of the known state of the art Cleaning powders for textile floor coverings contain adsorbents and evaporators as essential constituents Liquids as well as surfactants, antistatic agents and other components. As adsorbents, at the same time as carriers for the Liquid component, a variety of materials are known, such as cellulose powder, synthetic polymers and Foams, zeolites and various natural products. The Flüssig'komponenten consist of water or organic Solvents or from a mixture of these two and have the task, together with the surfactants d ^; e Debris of various kinds of the textlien pad to replace and to the carrier material to ve. convey. To

the drying of the liquid portions, the adsorbent is sucked together with the dirt particles. Surfactant residues remain on the textile fibers.

The cleaning effect of the known cleaning powder is thus based on the solvent power of the water for hydrophilic

inorganic and organic substances or the solvent power of the organic solvents for lipids and

Mineral oils. Furthermore, the effect results from the surface-active property of the surfactants and antistatic agents and the Adsorption capacity of the carrier. The cleaning power of the funds is thus by the physical effect of the individual components or by the sum

limited their effects. Substances that are not absorbed by the physical dissolution and adsorption processes cause problematic staining even on a cleaned textile coating. Due to the described purely physical mode of action, therefore, the known cleaning agents are insufficient to satisfy the

Cleaning requirements. They fail when substance- or age-related processes, such as resinification, coagulation and denaturation, too

adherent stains that are not removable by the aforementioned physical processes of the fiber.

In practice, this is a very common phenomenon, especially for aged spots. These leave at their

incomplete removal after a completed powder cleaning the textlischen floor covering optically ununiform appear. The predisposing with the help of special means is not only costly, but can cause bright spots,

Color changes and edge formations, which also greatly affect the overall picture of cleaning. The Use of surfactants and surfactant combinations in carpet cleaning powders generally results in the

cleaned textiles are subject to rapid re-soiling. Another disadvantage is the by

Surfactants caused chemical denaturation of proteins, which may hinder the removal of proteinaceous stains. So are Carpet cleaners based on cellulose powder and zeolite containing water, organic solvents and surfactants as further

essential components (DE 3437629 and DE 3444950) are not able to remove aged spots of protein, blood,

Ketchup, sauces, mustard and other foods to a sufficient extent to remove. DE-OS 3304887 describes a surfactant-containing cleaning agent for textile surfaces, which is a powdery, porous Contains support material based on urea-formaldehyde resin foam. By the addition of salts of sulphurous Acid in conjunction with ammonia, urea or thiourea / thiosulfate will reduce the proportion of free Achieved formaldehyde. The well-known cleaning center! have the disadvantage that polluting solvents and Wiederanschmutzung

promotional surfactants are used.

A carpet cleaning agent formulation with increased cleaning action, which is free of organic solvents and the Re-soiling of cleaned coverings not favored, is described in DD-PS 2S1989. problem soils

and aged stains require multiple treatment with this agent.

In summary, it should be noted that all cleaning agents in problem soiling is not sufficient Have cleaning power. Object of the invention

The aim of the invention is to propose chemically active components that significantly improve their detachability as additives to powder detergents and remove contaminants from the fibers of the coverings, which are not absorbed by the physically adsorptive acting cleaning powders alone.

Explanation of the essence of the invention

The invention has for its object to improve the physical adsorptive cleaning effect of powdered detergents by active components, so that Probiemanschmutzungen, such as denatured proteins, blood stains, aged oils and fats, starch and cellulose residues are removed.

It has been found that the elimination of the stubbornly adherent residues can be achieved in the short term via the stage of solubilization of these substances. This succeeds favorably by the action on the molecular structure and its chemical bonds by suitable agents. The specific feature of the invention lies in the fact that this objective must be achieved only by particularly selectively acting substances, since chemically sensitive art and natural fibers and other components of the floor coverings in turn can also be attacked by chemical agoncion and thus damaged. This is especially true for rugs or carpets made of pure wool and various finishes. Furthermore, no organic solvents and surfactants should be used.

The object is achieved in that an adsorptive carrier material is combined as the main component with urea, acetylurea, biuret, acetylbiuret or e-caprolactam. These compounds have surprisingly been recognized as solubilizing components for detachment, with critical importance to user concentration and the presence of water. The proportion of the solubilizing components is 0.1-10% by mass, preferably 1-5% by mass. By suitable combinations of the compounds with each other, further advantages in the Detachurwirkung can be achieved.

Another feature of the invention is the necessary presence of non-chemically bound water at a level of at least 20 mass%.

The carrier material used are organic and inorganic capillary-active hydrophilic corpuscular structures, which may be crystalline, fibrous or spherical. Preferred structures are urea-formaldehyde condensates, plastic foam powder, powder or perl cellulose, wood flour, sparingly soluble powder of mineral composition such as silicic acids and their salts, zeolites and carbonates, sulfates and oxides of the 2nd and 3rd group of the periodic table. The Detachurwirkung of such a combination was by no means derivable from the properties of the individual components. The particular advantage of the inventive solution is that the substance combination dispenses with the use of surfactants with their negative influence on re-soiling and organic solvents. Other advantages of dry cleaning powders are not adversely affected by the combination.

embodiments

A selection of recipe examples is listed in Table 1 below.

The preparation of the powdered detergent is carried out by intensive mixing of the components, wherein expediently the additional components, such as the carboxylic acid amide group-containing compounds and antistatic agents, are previously dissolved in the water.

Table 1

formulation Examples

Components in% by weight I Il - III IV V Vl VII VIII IX X xl XII XIII XIV Urea formaldehyde 29 28 26 28 27 27 27 27 27 - - - - condensation product (10-150 um) - Urea formaldehyde 9 9 9 9 9 9 9 9 9 - - - - foam (0.2-4 mm) - Wood flour 0,16 A - 48 - - - - - - - - 47 - - - powder cellulose - - - - - - - - - - 47 - - (5-250Mm) - pearl cellulose - - - - - - - - - - - 28 - precipitated silica - - - - - - - - - - - - 66 (5-100mm) 47 water 57 cn 56 52 55 54 54 54 54 54 46 46 65 37 antistatic agents " 5 - 5 4 5 5 cn 5 4 ö xt 5 cn 5 urea - - 2 9 - - - - 2 3 2 2 2 2 biuret - - - - 3 - - - - - - - - - acetylurea - - - - - 5 - - - - - - - - Acetylbiuret - - - - - - 5 - - - - - - - ε-caprolactam - - - - - - cn 2 - - - -

1 e.g. Sodium sulfate, etc. water-soluble salts.

In the recipe examples, cost monies of 3-6o, / 100cm ^{2 are used} for stain removal. The application is carried out by sprinkling the powder on the stains and intensive incorporation using a brush. Due to the selected high spreading density, the exposure and drying times are at least 2 h. After completion of the required drying time, the treated areas are thoroughly vacuumed with a vacuum cleaner. The Detachurwirkung was tested on laboratory-applied Vorfleckungssubstanzen on white textile Auslegeware (Malimodruckgrundware). As a staining substance, products customary in the practice were selected, which contained vegetable and animal proteins as well as starches and cellulose and had an intrinsic coloration or were colored with cocoa (see Table 2). The undiluted or water-mixed products were applied by means of a brush and excess liquid sucked through filter paper. In practice, the staining substances were left on the flor for 7-10 days and then subjected to the cleaning test

 The results of the Detachurwirkung are shown in Table 2.

Table 2 Results of Detachurwirkung

Verfleckungssubstanzen I Il III IV V Vl VII ' i / lll IX X xl XII XIII XIV Milk with cocoa 2 3 1 1 1 1 1 1 1 2 2 2 1 Custard powder / cocoa 2 3 1 1 1 1 1 1 1 2 2 2 1 Quark / Cocoa 2 2 1 1 1 1 1 1 1 1 1 1 1 Gelatin, colored 2 3 1 1  ; 1 1 1 1 2 2 2 2 egg yolk 2 2 1 1 1 1 1 1 1 1 1 1 1 mustard 3 3 1 1 2 2 1 1 1 O 2 2 1 tomato ketchup 3 4 1 1 2 2 1 1 1 2 2 2 2 animal blood 3 4 1 1 1 2 2 1 1 2 2 2 2

1 very good Detachur, i. on white textlien floor covering If the pre-stain is removed or visually imperceptible.

2 good detachur, d. H. On white textil flooring, the stain is visually still slightly perceptible, no longer visible on colored and patterned coverings.

3 Detachment enough, d. H. On a white cloth surface the stain is still visible. Only a second treatment leads to the rating 1 or 2.

4 Detachment insufficient, d. H. on white textlien surface If the stain is noticeably visible and reaches a better rating only after repeated treatment.

Claims (1)

Powdered detergent for textile floor coverings with increased Detachurwirkung without surfactants consisting of adsorption organic and / or inorganic powder mixtures, water and antistatic agents, characterized in that it contains 0.1-10.0 wt .-% urea, acetylurea, biuret, acetylbiuret or ε -Caprolactam singly or mixtures thereof and 20-90Ma .-% non-chemically bound water. Field of application of the invention The invention relates to cleaning powder for carpets, carpets and other textile floor coverings, the problem soiling.