CS261966B1 - Aerosol preparation for antistatic treatment of artificial fibers - Google Patents

Abstract

The aim of the solution is to formulate an aerosol preparation for antistatic treatment of synthetic fabrics based on a quaternary ammonium salt, non-ionic surfactant, solvent and propellant with very good to excellent antistatic efficacy, not causing corrosion of the aerosol container. The antistatic preparation contains 0.3 to 6.3 parts by weight of a cationic surfactant formed by a quaternary ammonium salt of the general formula I, where R1 to R3 represent alkyl with up to 4 carbon atoms or hydroxyalkyl with 2 to 4 carbon atoms and R1 represents methyl or ethyl, 0.1 to 6.0 parts of a nonionic surfactant of the general formula II, where R represents alkyl, alkenyl with 8 to 25 carbon atoms, n is 3 to 35, and or castor oil, oxyethylated with 20 moles of ethylene oxide, or a mixture of these substances, 51 to 75 parts of anhydrous ethanol, 34 to 50 parts of liquefied propellant gas or a mixture of gases with a boiling point of -45 to +40 °C.

Description

The invention relates to an aerosol preparation for antistatic treatment of artificial fibers based on a quaternary ammonium salt, a nonionic surfactant, a solvent and a propellant.

The antistatic effects of quaternary ammonium salts, phosphoric acid esters, some non-ionic and anionic surfactants and other compounds are generally known, which, after application, create an antistatic treatment on artificial fibers. The vast majority of antistatic preparations are applied to the fabric during washing or rinsing, when the antistatic preparation is added to the last rinse bath.

The disadvantage of the above-mentioned preparations is that they can be applied during washing or rinsing, which means that to restore the antistatic effect, the fabric must be washed or rinsed again in the preparation in order to achieve this treatment again. However, commonly used antistatic preparations are not suitable for use in aerosol form, as they have disadvantages such as their insolubility in ethanol, loss upon contact with propellant, etc. For some compounds that have already been used in aerosol packaging (for example, alkyl betaines, phosphoric acid esters, N-[(2-hydroxy-4-oxa-C ₁₄ _„ _?2 alkyl)-N,N-dimethyl-N (2-hydroxyethyl] ammonium chloride], these were also corrosive properties of the compounds, or corrosivity manifested in connection with the solvent or propellant, which is manifested by corrosion of the container wall, swelling or softening of the valve seal. The effect of these undesirable effects leads to a disruption of the function of the aerosol packaging and thus its deterioration.

These disadvantages are eliminated by an aerosol preparation for antistatic treatment of artificial fabrics based on a quaternary ammonium salt, a nonionic surfactant, a solvent and a propellant, consisting according to the invention by weight of

0.3 to 6.3 parts of a cationic surfactant, formed by a quaternary ammonium salt, selected from the group of substances of the general formula I where R.i to Rr> denote alkyl with 1 to 4 carbon atoms and or hydroxyalkyl with 2 to 4 carbon atoms and Rd denotes methyl or ethyl, or mixtures of these substances,

0.1 to 6.0 parts of a nonionic surfactant selected from the group of substances of general formula II

R— O_(CH2CH2O) _n H (Π) where R denotes alkyl, alkenyl with 8 to 25, preferably 12 to 18 carbon atoms in the chain, n is 3 to 35, preferably 4 to 20 and or castor oil oxyethylated with 20 moles of ethylene oxide, or a mixture of these substances, up to 75 parts of anhydrous ethanol, up to 50 parts of liquefied propellant gas or a mixture of gases with a boiling point from -45 °C to +40 °C.

The advantages of the preparations according to the invention lie in their simple, economical application and very good to excellent antistatic efficiency on fabrics of the polyacrylamide (PAD), polyester (PES), polyacrylonitrile (PAN) type, or combined fabrics where these artificial fibers predominate. A very important property of the preparation according to the invention is its suitability for use in aerosol packaging, as it is not aggressive and aerosol containers are not subject to leakage.

The invention is further illustrated by Examples 1 to 6, without limiting or exhausting its scope. In the examples given below, parts or percentages are understood to mean parts or percentages by weight.

Example 1

3.3 parts of N,N,N-trimethyl-N-(hydroxyethyl)ammonium methosulfate (50% solution in ethanol)

0.5 parts of cetyl oleyl alcohol, ethoxylated 20 moles of ethylene oxide parts of anhydrous ethanol 68 parts of dichlorodifluoromethane

_

261986

Antistatic efficiency:

log R

FALL

7.97

Example 1 and 2

3.3 parts N,N,N,N-tetraethylammonium ethosulphate (50% solution in ethanol)

Antistatic efficiency:

DOG MR.

9.06 7.52

1.0 part of aliphatic alcohol C ₁₂ _ ₎₅ , ethoxylated 10 moles of ethylene oxide parts of anhydrous ethanol 68 parts of dichlorodifluoromethane log R

PAD DOG PAN

8.81 8.53 7.73

Example 3

3.3 parts of N,N,N-tri(hydroxyethyl)-N-methylammonium methosulfate (50% solution in ethanol)

Antistatic efficiency:

0.5 parts of aliphatic alcohol C ₎₂ -i5, ox ethylated 20 moles of ethylene oxide parts of anhydrous ethanol 68 parts of dichlorodifluoromethane log R

FALL

6.56

Example 4

1.7 parts N,N,N-tri(hydroxyethyl)N-methylammonium methosulfate (100%)

Antistatic efficiency:

'DOG MR.

7.63 6.24

4.0 parts of oleyl acetyl alcohol, ethoxylated 20 moles of ethylene oxide parts of anhydrous ethanol 68 parts of dichlorodifluoromethane log R

PAD DOG PAN

6.64 6.35 6.07

Example 5

3.3 parts N,N,N-tri(hydroxyethyl)-N-methylammonium methosulfate (50% solution in ethanol)

4.0 parts of castor oil, ethoxylated with 20 moles of ethylene oxide

S6 parts anhydrous ethanol 68 parts dichlorodifluoromethane

Antistatic efficiency: 0 log R PAD 6.96 PES 7.0 MAN 6.50 Example 6 6.3 parts of N,N,N-tri(hydroxyethyl)-N-methylammonium methosulfate (50% solution in ethanol) 4.0 parts of aliphatic alcohol C ₂ _i ₅ , oxyethylated with 4 moles of ethylene oxide 93 parts of anhydrous ethanol 69 parts of chlorodifluoromethane Antistatic efficiency: 0 log R PAD 6.91 PES 7.10 PAN 6.37

The antistatic efficiency was measured after spraying and drying of the preparations in an amount of approximately 1 to 2% by weight of the treated fabric on test fabrics PAD, PES, PAN on the TERAOHMMETER device. The measurement confirms that the said preparations show antistatic efficiency results of log R 6.0 to 7.0, which corresponds to excellent antistatic treatment and log R 7.0 to 8.0, which corresponds to very good antistatic treatment of fabrics. The antistatic efficiency of the preparations according to the invention and the imported preparation "LANA" (imported from the USSR) was compared. When spraying the same amount of the preparation by weight on test fabrics, the imported preparation showed antistatic efficiency approximately 2 orders of magnitude lower (log R 8.0 to 9.0 and 9.0 to 10.0), which corresponds to good, or satisfactory, antistatic treatment of fabrics.

Claims (1)

Aerosol preparation for antistatic treatment of artificial fabrics based on quaternary ammonium salt, non-ionic surfactant, solvent and propellant, characterized in that it consists of: 0.3 to 6.3 parts of a cationic surfactant consisting of a quaternary ammonium salt selected from the group of compounds of formula I Wherein R 1 to R 3 denotes alkyl having a carbon number of 1 to 4 or or hydroxyalkyl of 2 to 4 carbon atoms and R 4 denotes methyl or ethyl, or mixtures thereof, 0.1 to 6.0 parts of a nonionic surfactant selected from the group of compounds of formula II R = O- (CLLCH2OnH (Π)) wherein R is alkyl, alkenyl of 8 to 25, preferably 12 to 18 carbon atoms in the chain, n is 3 to 35, preferably 4 to 20, or castor oil oxethylated with 20 moles of ethylene oxide or mixtures of these substances, 51 to 75 parts of anhydrous ethanol, 34 to 50 parts of liquefied propellant or gas mixture boiling from -45 ° C to + 40 ° C. Severography, n. Race 7, Most Price 2,40 Kčs