EP2446008B1 - Use of diether compounds during the dry cleaning of textile products, leather goods and fur - Google Patents

Description

The present invention relates to the use of a solvent having certain properties and features in a process for the dry cleaning of textile, leather or fur products, in which bringing the product to be cleaned with a cleaning agent in contact, wherein the cleaning agent comprises the solvent. Moreover, the present invention also relates to the production of a cleaning agent for the dry cleaning of textiles, leather and fur products, wherein the cleaning agent has a proportion of the solvent with the specific properties and characteristics.

The professional cleaning of textile, leather or fur products is a special service of modern society with economically very great importance. In particular, formal and festive clothing is usually made of high quality materials, such as e.g. Cashmere, wool or silk, made or at least partly made of leather or fur. These materials can be found in water and tend to be matted during traditional wet cleaning. In addition, some dyeings of materials suitable for wet cleaning have low wet fastness properties.

The care of such goods must therefore be carried out as a rule in the commercial textile cleaning using suitable solvents. The general advantage of a solvent treatment of textiles is that natural fibers in organic solvents have only low swelling behavior and thus the risk of entanglement is very low.

The suitability of apolar solvents, e.g. aromatic hydrocarbons, light gasoline, Stoddard Solvent and White Spirit, for cleaning textiles has been known since the early 19th century. Later, halohydrocarbons, e.g. Chlorinated hydrocarbons (CHC) and chlorofluorocarbons (CFC) are used. The v. A. However, CFCs that were widely used in the 1970s and 1980s were banned under the 1987 Montreal Convention for the protection of the ozone layer.

In the meantime, halogen-free solvents such as isoparaffins (KWL) and cyclosiloxane D5 (decamethylcyclopentasiloxane) have again become established in textile cleaning. These solvents have to be used in installations where the preparation of the solvent is over

Due to their high boiling range (KWL: 185-210 ° C.) or boiling point (cyclosiloxane D5: b.p .: 211 ° C.), distillation takes place under reduced pressure, which leads to correspondingly increased energy costs. To save this, there are now systems that work without distillation or with reduced distillation rate and instead use filter powder or cartridge filters for solvent regeneration.

One of the latest developments in the field is the use of liquid carbon dioxide to clean textiles. However, the high-pressure systems required for the use of liquid carbon dioxide are considerably more expensive in comparison to conventional cleaning machines, which hitherto hindered the spread of the new technology.

The solvent most commonly used in commercial textile cleaning worldwide is perchlorethylene (= tetrachloroethene, per). Perchlorethylene is incombustible, has a boiling point of 121 ° C and can be distilled in the cleaning machines at atmospheric pressure. Perchlorethylene is a solvent with excellent dissolving power against a wide variety of soiling and a large part of the upper coat rack can be cleaned according to the international care label of textiles in perchlorethylene.

A disadvantage of the use of perchlorethylene is the risk of groundwater and soil contamination. According to the Hazardous Substances Ordinance, perchlorethylene is classified as hazardous to health with risk phrase R40 and is therefore suspected of causing cancer. Therefore, in some EU Member States, perchlorethylene cleaning machines should not be operated in supermarkets selling food. Due to the danger that perchlorethylene vapors penetrate the masonry, provision must also be made for emission reduction. Some states of the USA, such as California, has banned perchlorethylene as a solvent in textile cleaning from 2020.

The legal requirements regarding the use, storage and transport of the most commonly used in commercial textile cleaning perchlorethylene lead to a need for suitable alternative solvents in commercial textile care.

Halogenated solvents have the already mentioned disadvantages for humans and the environment. Although solvents such as HCL, cyclosiloxane or liquid carbon dioxide, which are considered as further alternatives, have a more favorable hazard classification compared to perchlorethylene, they have specific disadvantages in terms of cleaning performance in practice, especially in the case of heavily soiled textiles and, above all, soiling by pigments and salts , which can only be compensated by increased efforts in the Detachur.

US 5 269 958 A describes an aerosol spray composition for localized stain removal wherein the composition is sprayed onto the fabric to be cleaned and then vacuumed or brushed. The composition contains various liquid and solid components. As a solid component, the composition contains a particulate absorber material intended to pick up the soil. The liquid ingredients are composed of dimethyl ether, water, alcohol, ketone, alkyl glycol, alkyl glycol ethers and dimethoxymethane.

US 4,783,560 describes the use of 1,1,1-trichloroethane as a cleaning agent. In order to stabilize the 1,1,1-trichloroethane in the purification of metals, at least one saturated aliphatic epoxide and at least two dialkoxyalkanes are added thereto in small quantities.

EP 0 743 360 describes emulsions with a water content of> 50%, which are used in carpet cleaning.

JP 5051598 A discloses a chemical cleaning solvent having the general formula RO - (- R ₂ O) _n - (- R ₃ O-) _m -R ₁ where R = C _1-5 alkyl, R ₂ = C _2-4 Alkylene, R ₃ = C _2-4 alkylene, n = 0-5, m = 0-5, n + m = _1-5 and R ₁ = C _1-5 alkyl.

The object of the present invention is to provide a solvent which is substantially equivalent or even better in terms of its cleaning properties compared to perchlorethylene or the other solvents commonly used in the dry-cleaning of textile, leather or fur products. At the same time this solvent should have ecologically and toxicologically more favorable properties compared to perchlorethylene or the other commonly used in the dry cleaning of textile, leather or fur products solvents, so that the use, storage and transport of this solvent or a solvent containing this liquid detergent safer or with less cost and / or energy consumption is possible.

wobei

• x = 1 ist,
• R¹ und R³ H sind und
• R² und R⁴ unabhängig voneinander unter einem unsubstituierten oder substituierten n-Butyl-, iso-Butyl-, sekundären Butyl-, tertiären Butyl-, n-Pentyl-, iso-Pentyl-, Neopentyl-, Cyclopentyl-, n-Hexyl-, iso-Hexyl-, Cyclohexyl-, Octyl-, iso-Octyl-, 2-Ethylhexylrest ausgewählt sind,

als Reinigungsmittel in einem Verfahren zur maschinellen chemischen Reinigung von Textil-, Leder- oder Pelzwaren in einer Reinigungsmaschine, wobei die Reinigungsmaschine ein geschlossenes System ist, in dem das Lösungsmittel rezykliert wird, wobei man bei dem Verfahren die zu reinigende Ware mit dem Reinigungsmittel in Kontakt bringt.This object is achieved according to the invention by the use of a solvent having the general formula (I):

in which

• x = 1,
• R ¹ and R ^{3 are} H and
• R ² and R ^{4 are} independently selected from unsubstituted or substituted n-butyl, iso-butyl, secondary butyl, tertiary butyl, n-pentyl, iso-pentyl, neo-pentyl, cyclopentyl, n-hexyl , isohexyl, cyclohexyl, octyl, iso-octyl, 2-ethylhexyl are selected,

as a cleaning agent in a process for the mechanical chemical cleaning of textile, leather or fur products in a cleaning machine, wherein the cleaning machine is a closed system in which the solvent is recycled, wherein in the process, the goods to be cleaned with the detergent in contact brings.

Solvents of the formula (I) are formally diethers and are accessible by the usual synthesis routes leading to the ether function, eg. By Wiliamson ether synthesis, reaction of oxiranes, oxetanes, tetrahydrofurans, and higher analogs with alcohols. For example, compounds of formula (I) wherein x = 1 can be prepared by reacting a carbonyl compound, such as, e.g. As an aldehyde or ketone with 2 moles of alcohol per carbonyl group. Usually, this reversible reaction is catalysed acid. To shift the equilibrium, the alcohol is usually used in excess and the resulting water is removed from the reaction mixture. In order to obtain the degree of purity required for use as a solvent in dry cleaning, it is desirable to either remove or neutralize the catalyzing acid in cases where acidic catalysis has been carried out in order to permit decomposition of the solvent in use prevent.

It has surprisingly been found that the detergency of compounds of formula (I) compared to perchlorethylene and the other in the chemical

Cleaning of textile, leather and fur products conventionally used solvents at least equivalent and sometimes even better. Since many compounds of the formula (I) have no classification according to the Ordinance on Hazardous Substances known to the inventors, they are also superior to most of the solvents conventionally used in the dry-cleaning of textile, leather and fur products in view of their ecological and toxicological properties. In particular, the ecological and toxicological properties of many compounds of formula (I) are better than the environmental and toxicological properties of perchlorethylene.

In addition, the compounds of the formula (I) also meet the typical requirements for a solvent to be used in the cleaning of textile, leather and fur products.

In particular, the solvent according to formula (I) has good dissolving properties for oily and greasy soils, e.g. Oils, fats, waxes, fatty acids, on. It also dissolves pigments and salts well from the textile fiber and stabilizes the detached pigments and salts in the solvent liquor.

Many embodiments of the solvent according to formula (I) are easily distillable without thermal decomposition of the solvent. In certain embodiments, the solvent according to formula (I) is immiscible with water and therefore, if necessary, is quite easily (e.g., in a water separator) separable from a water phase.

In addition, the solvent according to formula (I) has a favorable drying behavior and is substantially odorless. In addition, the solvent according to formula (I) does not lead to color losses and does not adversely affect the dimensional stability of textiles. It is also important that adhesives used in textile finishing are not dissolved by the solvent according to formula (I).

After all, the use of the solvent according to formula (I) in a process for the dry cleaning of textile, leather or fur products, in which bringing the product to be cleaned with this solvent in contact, extremely advantageous. Thus, when using the solvent of formula (I) in a process of dry-cleaning textile, leather or fur products, this solvent can completely or at least partially replace perchlorethylene, hydrocarbons (HCL), cyclosiloxane D5 or other solvents used for chemical cleaning.

For the purposes of the present invention, the goods to be cleaned (items to be cleaned) include, inter alia, textile, leather and fur articles of any kind, such as items of clothing Textile, leather and / or fur, professional and protective clothing of any kind with textile and / or leather content, but also curtains, carpets and decorative materials with textile, leather and / or fur.

The term dry cleaning is to be understood in the context of the present invention broadly and includes also the pretreatment (detachment) of textiles, leather and fur products in connection with the dry cleaning of these goods.

Preferably, the contacting of the goods to be cleaned with the cleaning agent in a dry cleaning machine. In one embodiment of the invention, the cleaning of textile, leather or fur products is therefore carried out using the solvent according to formula (I) by machine in cleaning machines. Such cleaning machines are usually closed systems in which the solvent is recycled either by distillation, absorption or by a combination of both treatment processes.

For transfer systems, the v.a. In the 50's when used in the chemical cleaning with perchlorethylene or white spirit, cleaning process and distillation were usually performed in the cleaning machine and the drying of the textiles in a separate dryer (often with solvent recovery).

Modern machines work with the "Dry to Dry" technology, in which the material to be cleaned is loaded dry and, after the end of the process, is discharged again in a dry state. The solvent-water mixture condensed on a solvent cooler can be separated again into organic phase and water phase in a water separator in this process. Subsequently, the solvent can then run over an overflow of the water separator in the clean tank, while the water can be removed as contaminated water contact the system and can be cleaned to comply with the Einleitgrenzwerte accordingly.

The cleaning processes can be both one-bath and zweibadig (pre- and main cleaning bath) or, as for example in the case of work wear, also carried mehrbadig. In a two- or mehrbadigen process, the solvent used in the invention can be brought into contact with the cleaning material in the first or in a subsequent to the first bath with the formula (I). The other bath or baths may contain one or more other solvents for the dry cleaning of textile, leather or fur products. Alternatively, the solvent used according to the invention can be brought into contact with the cleaning material in more than one or in all baths with the formula (I).

In an alternative purification process according to the present invention, the solvent of the formula (I) is sprayed on the items to be cleaned once or several times in special cleaning systems. This process may additionally comprise process steps in which the cleaning product is immersed in one or more cleaning baths with the solvent of the formula (I) as described in the preceding paragraph. The method may also include process steps in which the items to be cleaned are also brought into contact with another solvent for the dry cleaning of textile, leather or fur products, whether by spraying or immersion in a cleaning bath.

In one embodiment of the method according to the invention, the cleaning material in the same machine in which it was also dipped or spray dried ("dry to dry" technique), so that the cleaning material is loaded dry and unloaded after the process is dried again ,

Optionally, in the method according to the invention, the cleaning material can also be sprayed with an impregnating agent or immersed in an impregnating agent after the end of the cleaning process and before drying.

In the present invention, in the solvent of the general formula (I), R ² and R ^{4 are} independently an n-butyl, iso-butyl, secondary butyl, tertiary butyl, n-pentyl, iso-pentyl , Neopentyl, cyclopentyl, n-hexyl, iso-hexyl, cyclohexyl, octyl, iso-octyl, 2-ethylhexyl.

In the embodiments of the invention wherein one or more of R ² , R ^{4 is} substituted, the substituent (s) may be selected from the group consisting of -Cl, -Br, -I, -NO ₂ , -NR ₂ , -COOR, -C (O) R, -CONHR, -CONR ₂ .

• x = 1 ist,
• R¹ und R³ gleich H sind und
• R² und R⁴ n-Butylreste sind.

In a specific embodiment of the invention, the solvent having the general formula (I) is characterized in that

• x = 1,
• R ¹ and R ³ are H and
• R ² and R ^{4 are} n-butyl radicals.

mit der chemischen Bezeichnung Methylenglykoldibutylether. Das Lösungsmittel mit der spezifischen Formel (III) ist ein Beispiel für eine Ausführungsform des erfindungsgemäßen Lösungsmittels mit der allgemeinen Formel (I), die einen Flammpunkt > 55°C (PMCC = Pensky-Martens Closed Cup) aufweist. Das Lösungsmittel mit der spezifischen Formel (III) ist außerdem ein Beispiel für eine Ausführungsform des erfindungsgemäßen Lösungsmittels mit der allgemeinen Formel (I), die sich nicht mit Wasser mischt bzw. weniger als 2 Vol.-% Wasser aufnimmt.Accordingly, the solvent in this specific embodiment is a compound having the specific formula (III)

with the chemical name Methylenglykoldibutylether. The solvent having the specific formula (III) is an example of an embodiment of the solvent according to the invention having the general formula (I), which has a flash point> 55 ° C (PMCC = Pensky-Martens Closed Cup). The solvent having the specific formula (III) is also an example of an embodiment of the solvent of the general formula (I) according to the invention which does not mix with water or absorbs less than 2% by volume of water.

The solvents of the formula (I) according to the invention are the safer, the higher their flash point. In one embodiment of the invention, therefore, a solvent of formula (I) is used which has a flash point> 55 ° C (PMCC). For reasons of transport law, a specific embodiment of the solvent of formula (I) has a flash point of ≥ 62 ° C (PMCC).

In certain embodiments of the cleaning process according to the invention, the treatment of the cleaning agent or the solvent is carried out by distillation. In more specific embodiments, this distillation is carried out under reduced pressure (Vacuum distillation). Some embodiments of the solvent according to the invention having the formula (I) have a boiling point <215 ° C. at 1013 mbar. This has the advantage that the energy consumption during the preparation of the solvent by distillation is lower.

In certain embodiments of the invention, the cleaning agent also comprises a portion of a cleaning amplifier (or cleaning activator). In other embodiments, a cleaning booster is added to the cleaning agent during the process. In yet other embodiments, the article to be cleaned is otherwise contacted separately with a cleaning booster during the process.

Cleaning enhancers (or cleaning activators) are surfactant formulations to improve the cleaning effect. Other tasks of a cleaning enhancer include emulsifying water to improve wet soil removal, and dispersing pigments and salts in the solvent to improve their release from the fabric and prevent their redeposition. Some cleaning agents stabilize dissolved fine pigments in the cleaning solution and thus protect the items to be cleaned from graying. Cleaning enhancers may also be anti-corrosive additives or non-ionic or cationic surfactants for handle improvement with "easy finish" properties or finishes. Some cleaning agents provide sanitary effects in the textile care, others reduce or avoid the static charge of the items to be cleaned during the drying phase, causing e.g. in wool linting is significantly reduced.

In certain embodiments of the invention, the cleaning agent comprises a proportion of cleaning enhancers which are anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, microbicides, preservatives, handle improvers, seasonings, fragrances, preservatives, odor absorbers, solubilizers, corrosion inhibitors, deodorants, emulsifiers, Finishing agents, antistatic components, fluorocarbon resins or combinations thereof.

Suitable anionic surfactants include the sulfates, sulfonates, carboxylates, phosphates, such as alkyl ester sulfonates, alkyl sulfates, alkyl ether sulfates, alkylbenzenesulfonates, alkanesulfonates and fatty acids which are suitable as cleaning agents for the dry cleaning of textile, leather and fur products with cations which may, for example, be selected from alkali metals or alkaline earth metals, for example lithium, sodium, potassium, or ammonium or ammonium compounds, such as, for example, monoethanolamine, diethanolamine and triethanolamine.

Suitable nonionic surfactants include the condensation products of aliphatic alcohols with alkylene oxide, for example ethylene oxide or propylene oxide known to the person skilled in the art as cleaning enhancers for the dry-cleaning of textile, leather and fur products, wherein the alkyl chain of the aliphatic alcohols is linear or branched, saturated or may be unsaturated, condensation products of ethylene oxide having a hydrophobic base formed by condensation of propylene oxide with propylene glycol, and condensation products of ethylene oxide with a reaction product of propylene oxide and ethylenediamine. Furthermore, the possible nonionic surfactants include water-soluble amine oxides, water-soluble phosphine oxides and water-soluble sulfoxides having a C ₁₀ to C ₁₈ alkyl radical. Other nonionic surfactants known to the person skilled in the art as cleaning enhancers for the dry-cleaning of textile, leather and fur products are alkyl and alkenyl oligoglycosides and fatty acid polyglycol esters or fatty amine polyglycol esters having a C ₈ - to C ₂₀ -fatty alkyl radical, alkoxylated triglycamides, fatty acid N-alkylglucamides, Phosphine oxides, dialkyl sulfoxides, mixed ethers or Mischformyle and protein hydrolysates and polyethylene, polypropylene and polybutylene oxide condensates of alkylphenols.

Examples of amphoteric or zwitterionic surfactants are alkylbetaines, alkylamidbetaines, alkyldimethylbetaines, alkyldipolyethoxybetaines, aminopropionates, aminoglycinates and amphoteric imidazolinium compounds, which are known to the skilled person as cleaning enhancers for the dry-cleaning of textile, leather and fur products.

The well-known in the art as cleaning enhancers for the dry cleaning of textiles, leather and furs cationic surfactants include substituted or unsubstituted, straight or branched chain, quaternary ammonium salts of the type R ¹ N (CH _{3) 3} ⁺ X ^-, R ¹ R ² N (CH ₃ ) ₃ ⁺ X ^- , R ¹ R ² R ³ N (CH ₃ ) ⁺ X ^- or R ¹ R ² R ³ R ⁴ N ⁺ X ^- , wherein R ¹ , R ² , R ³ and R ⁴ a alkyl, hydroxyalkyl, phenyl, alkenyl, can be aralkyl radical, X ^- is the skilled person is known to be suitable anion.

In certain embodiments of the inventive use of the solvent according to claim 1, the cleaning agent also comprises a proportion of a substance suitable for chemical cleaning agents for trapping hydrogen proton donors, free hydrogen protons and / or free carbonyl compounds. For example, the detergent can be stabilized by the addition of suitable basic compounds, that any existing proton donors are trapped in a neutralization reaction and can not contribute to a proton-catalyzed decomposition of the solvent.

The aforesaid chemicals suitable for chemical cleaning agents for trapping hydrogen proton donors, free hydrogen protons and / or free carbonyl compounds may be selected therefrom without limitation to alkali metal carbonates, such as Sodium or potassium carbonate, and compounds bearing one or more free amino groups, such as chitin, urea, aminoguanidine, phenylbiguanidine, (polymeric) aminophenols, and ion exchangers bearing amino groups. The compounds bearing one or more free amino groups are capable of binding carbonyl compounds to form Schiff bases (azomethines). At the same time, these amino compounds react as bases and react with proton donors in a neutralization reaction to form ammonium compounds. This pH stabilization prevents or at least significantly restricts any acid-catalyzed hydrolysis reactions which lead to decomposition of the solvent.

The substances suitable for chemical cleaning agents for trapping hydrogen proton donors, free hydrogen protons and / or free carbonyl compounds are preferably higher boiling than the other substances of the cleaning agent and temperature stable, so that they remain in the distillation of the chemical cleaning agent in the distillation still and not with the cleaning material in combination come. If the compounds are not soluble in the cleaning agent, they may alternatively be added to the cleaning agent stored in a storage tank, so that they do not come into contact with the cleaning material in this case either. The trapping reaction of protons and carbonyl compounds takes place here in a heterogeneous reaction and is also conceivable in non-distilling purification processes.

wobei

• x = 1 ist,
• R¹ und R³ H sind und
• R² und R⁴ unabhängig voneinander unter einem unsubstituierten oder substituierten n-Butyl-, iso-Butyl-, sekundären Butyl-, tertiären Butyl-, n-Pentyl-, iso-Pentyl-, Neopentyl-, Cyclopentyl-, n-Hexyl-, iso-Hexyl-, Cyclohexyl-, Octyl-, iso-Octyl-, 2-Ethylhexylrest ausgewählt sind

und einem Anteil eines Reinigungsverstärkers, der unter anionischen Tensiden, kationischen Tensiden, nichtionischen Tensiden und amphoteren Tensiden ausgewählt ist, und/oder einem Anteil einer für chemische Reinigungsmittel geeigneten Substanz zum Abfangen von Wasserstoffprotonendonatoren, freien Wasserstoffprotonen und/oder freien Carbonylverbindungen besteht. According to a further aspect of the present invention, the above-described solvent of the general formula (I) is obtained in one or more of the above-described embodiments for producing a detergent for dry-cleaning textile, leather and fur products or for preparing a pretreatment agent (Detachur) of textiles, leather and fur products, wherein the cleaning agent from a proportion of the solvent having the general formula (I):

in which

• x = 1,
• R ¹ and R ^{3 are} H and
• R ² and R ^{4 are} independently selected from unsubstituted or substituted n-butyl, iso-butyl, secondary butyl, tertiary butyl, n-pentyl, iso-pentyl, neo-pentyl, cyclopentyl, n-hexyl , iso-hexyl, cyclohexyl, octyl, iso-octyl, 2-ethylhexyl

and a proportion of a cleaning enhancer selected from anionic surfactants, cationic surfactants, nonionic surfactants and amphoteric surfactants and / or a proportion of a chemical cleaning agent suitable for trapping hydrogen proton donors, free hydrogen protons and / or free carbonyl compounds.

Claims (8)

1. A use of a solvent of the general formula (I):

   

   wherein

   - x = 1,

   - R¹ and R³ are H, and

   - R² and R⁴ are selected independently of each other from an unsubstituted or substituted n-butyl, iso-butyl, secondary butyl, tertiary butyl, n-pentyl, iso-pentyl, neopentyl, cyclopentyl, n-hexyl, iso-hexyl, cyclohexyl, octyl, iso-octyl, 2-ethylhexyl residue,

   as a cleaning agent in a method of machine chemical cleaning of textile, leather or fur goods in a cleaning machine, wherein the cleaning machine is a closed system in which the solvent is recycled, wherein in the method the article to be cleaned is brought into contact with the cleaning agent.
2. A use as set forth in claim 1 characterized in that substituted R², R⁴, if present, are substituted with one or more from -Cl, -Br, -I, -NO₂, -NR₂, -COOR, -C(O)R, -CONHR, -CONR₂.
3. A use as set forth in one of claims 1 or 2 characterized in that the at least one solvent is a compound of the formula (III)

   
4. A use as set forth in one of claims 1 through 3 characterized in that the solvent has a flash point >55°C or ≥62°C and/or a boiling point <215°C at 1013 mbar.
5. A use as set forth in one of claims 1 through 4 characterized in that the cleaning agent also has a proportion of a cleaning booster or a cleaning booster is meteredly added to the cleaning agent during the method or the article to be cleaned is also brought into contact with a cleaning booster during the method.
6. A use as set forth in one of claims 1 through 5 characterized in that the cleaning agent additionally includes a substance suitable for chemical cleaning agents for trapping hydrogen proton donors, free hydrogen protons and/or free carbonyl compounds.
7. A use of a solvent of the general formula (I) or the special formula (III) and having the features as set forth in one of claims 1 through 4 for the production of a cleaning agent for the chemical cleaning of textile, leather and fur goods, characterized in that the cleaning agent has a proportion of the solvent of the general formula (I) or the special formula (III) and a proportion of a cleaning booster, which is selected from anionic surfactants, cationic surfactants, non-ionic surfactants and amphoteric surfactants, and/or a proportion of a substance suitable for chemical cleaning agents for trapping hydrogen proton donors, free hydrogen protons and/or free carbonyl compounds.
8. A use as set forth in claim 7 characterized in that the cleaning agent has a proportion of microbicides, preserving agents, feel improvers, finishes, fragrance substances, odor absorbers, anti-static components, dissolvents, corrosion inhibitors, deodorants, emulsifiers, finishing agents, fluorocarbon resins or combinations thereof.