CS276643B6 - Washing agent with increased brightening effect - Google Patents

Abstract

The solution concerns laundry detergents with combined effect; ie with the classic function detergents and at the same time function fabric softeners. The essence of these % detergent is 2 to 8 wt. mixtures N-alkylamidopropyl, N, N-dimethylamine, and N-alkyl, N-methylN, N-polyoxyethyl methosulfate in a weight ratio of 3 to 10 s 1. The main advantages of the solution lie in the next approaching the effectiveness of classic fabric softeners without the need for dosing another product.

Description

The invention ee relates to detergents with a combined effect, i.e. with the function of conventional detergents and at the same time with the function of fabric softener products.

Many textile materials, especially synthetic fibers and mixed textiles, require the application of special products, so-called fabric softeners, for maintenance in addition to removing dirt.

Application of these products until the last rinse ensures that the treated fabrics are soft and reduces their static charge, thus removing their negative properties (firm touch, adhesion to the body, etc.).

The basis of fabric softeners consists of various types of ketionic surfactants, or their mixture with ionic surfactants.

Most existing detergents are only intended to remove soiling. Recently, attempts have been made to formulate detergents with a combined effect, ie with washing and fabric softener. The results are unsatisfactory, since raw materials with less pronounced properties must be used for the antagonistic relationship of classical cationic surfactants (e.g. with excellent softening effects and anionic surfactants necessary to achieve the desired washing effect (alkanesulfonates / alkylbenzenesulfonates, soaps). However, they are less effective. The most preferred system of the present state is the use of an alkylalkoxylated quartet! ammonium salts mixed with branched olefins (AO 252 441), although it does not reach the level of classical softener.

High detergency efficiency while forming a rinse-resistant hydrophilizing film can be ensured by the invention of a detergent with increased softening effect composed of anionic surfactants, binders and special additives, characterized in that it contains 2 to 8% by weight, mixtures of N-alkylamidopropyl, N, N-dimethylamine of general formula It

CH, I ³ R - CONH (CH-), - N -. AND

CH 2 N-alkyl, N-methyl, N, N-polyoxyethyl methosulphate of general formula II: +

CH ₃ S0 ₄ II where in both cases

R is a saturated or unsaturated carbon chain of 8 to 22 carbon atoms, n + m and 3 to 7 in a weight ratio of 3 to 10: 1.

The main advantages of the invention lie in the further approximation of the effectiveness of conventional fabric softeners when using a detergent with a high detergent effect in one working cycle, without the need to dispense special fabric softeners.

Example 1

A conventional production method for the preparation of powder detergents produces a detergent having a composition (in% by weight) of t '(CH ₂ -CH ₂ -O) _n H

R - N - CHI (CH ₂ -CH ₂ -O) _m H

CS 276 643 B6 2% sodium dodacylbenzenesulfonate,% N, N-dimethyl, N-dodecylamidopropylamine,% N, N-haptaoxyethyl, N-methyl / N-actadecyl methosulfate,% sodium tripolyphosphate;

1.5% carboxymethylcellulose,

0.25% perfume;

% dry water content,% residual water,

0.2% optical brighteners, up to 100% sodium sulphate ·

A powder detergent intended for hand washing is obtained which provides, in addition to the detergent effect, also an antistatic effect.

Example 2

Prepare a powder detergent with the composition (in% by weight): 10% οζ-sodium olefin sulphonate,

1.8% N, N-dimethyl, N-docoeylamidopropylamine,

0.2% N-methyl, N-octyl, N, N-trioxyethyl methosulfate,% sodium tripolyphosphate,% synthetic zeolite,% sodium silicate,% carboxymethylcellulose;

% sodium soap,

0.2% perfume,% water,% soda;

up to 100% sodium sulfate.

The obtained detergent has good washing, softening and antistatic effectiveness.

Example 3

A liquid detergent with a high softening effect is produced with the composition (in% by weight): 20% triethanolamine soap from coconut acids, 15% oxyethylenated fatty alcohol ( ^c i2 ^c 16 ' ^mo ^ ^0E )> 6% sodium dodecylbenzenesulfonate,% alkaline protease with an activity of 400 000 Oj / g,% sodium tetraborate,% propylene glycol,% N, N-dimethyl, 'N-octylamidopropylamine,% N-docosyl, N-methyl, N, N-pentaoxyethyl methosulphate,

0.25% perfume, 0.0005% dye,

Ir

CS 276 643 B6% trisodium nitrilotrioacetate, up to 100% water.

The performance parameters of the product according to Example 1 in comparison with a foreign detergent of a similar purpose, with a powder detergent according to the author's certificate No. 252 441 and with a classic fabric softener are documented in the following table.

The antistatic effect was evaluated by the size of the surface resistance of the polyester fabric washed in a conventional automatic washing machine.

The softening effect was evaluated subjectively by tactile under the same conditions, washed terry cloth using a scale of 0 to 5 (most favorable).

The washing efficiency was evaluated by measuring the change in optical remission of a standard soiled polyester fabric washed as described above. .

Washing temperature - 60 C, water hardness - 2.67 mmol Ca .1, detergent concentration 5 gl ¹ . .

Surface resistance (Ohm) Softening effect Washing ability (opt. Remission) Original unwashed fabric 5; o.io ¹³ 0 83.6 Dirty fabric · -. 15.4 Washed fabric det. according to the invention l'5.10 ¹⁰ 4 75.4 Washed fabric det. according to AO No. 252 441 8.9.10 ¹⁰ 3 72.8 Fabric washed with foreign detergent 2.7.10 ¹¹ 3 69.9 Classic fabric softener soio ⁹ 5 -

PATENT CLAIMS

Claims (1)

PATENT CLAIMS Detergent with enhanced fabric softening effect; composed of anionic surfactants, binders and special additives, characterized in that it contains 2 to 8% by weight of a mixture of N-alkylamidopropyl.N, N-dimethylamine of the general formula I ^0H 3 R - CONH (CH 2) n -N ch ₃ and N-alkyl, N-methyl, N, N-polyoxyethyl methosulfate of general formula II (CH ₂ -CH ₂ -O) _n H R - N - CH ₃ (CH ₂ -CH ₂ -O) _m H ch ₃ so ₄ II CS 276 643 B6 where in both cases R is a saturated or unsaturated carbon n + · m and 3 to 7, in a weight ratio of 3 chains of 8 to 22 carbon atoms, up to 10: 1.