CS217248B1 - Antimol product - Google Patents

Abstract

The invention solves the problem of increasing the lasting effect of an anti-moth preparation based on the active substance of the general formula I /2 to 8CI < O )~O by adding urea

Description

BACKGROUND OF THE INVENTION The present invention relates to an antimoll preparation having a more sustained action. The preparation so far used for the permanent protection of wool against fire pests is a solution of the active substance which is the sodium salt of the sulfamidal polychloro-substituted aromatic derivative of the general formula I / 2 to 8Cl (I) nso ₂ ch ₂ ci

In polytopic alcohol with a small amount of emulsifier. Typically, the composition is 30 to 33 wt. % of active ingredient, 3 wt. % of emulsifier, 10 to 20 wt. water and the remainder being a polytopic alcohol, most often 1,2-propylene glycol.

The wool treatment with this preparation is carried out from the acid bath in an amount of 1 to 1.5% based on the weight of the wool fabric to be treated. An important requirement for a permanent anti-moling treatment is the high and level-of-draw-out of the active substance applied. The prior art preparations do not achieve a high pull-out of the active substance, which results in a lower durability of the anti-molting treatment.

The present invention relates to an antimol agent based on an active compound of the formula I to 80 ° C

(I) n 50 ₂ ch ₂ ci

To be dissolved in a polytopic alcohol with an emulsifier admixture containing 10 to 30 wt. urea, based on the weight of the active substance. This addition of urea, as has now been found, facilitates the penetration of the active antifungal agent into the wool fiber, which ultimately results in a perfect extraction even from the weakly acidic bath, thereby increasing permanent fire protection.

The addition of a suitable amount of urea to the addition may be replaced by a suitable, preferably, alcoholic solvent of the active ingredient by part of the urea solution,

Example 1

To 100 g of the sodium salt of the anti-mol active substance (a mixture of polychloro-substituted 2-chloromethylamido-diphenyl ether derivatives) dissolved in 82 g of propylene glycol was added 9 g of emulsifier (sodium dodecylbenzenesulfonate) in combination with sodium alkyl polyglycol ester sulfonate with 16.5 g of urea in 96 g of water. The final anti-mol formulation thus obtained contains 33 wt. % of active ingredient, 3 wt. % of emulsifier, 5.4 wt. urea, 27 wt. % propylene glycol and the remainder, 31.6 wt. is water.

g of the upper antimol agent was dissolved in 3 L of water. 100 g of woolen cloth was placed in this bath and treated 20 at 40 ° C in a conventional dyeing process. After adding 2 g of 60% acetic acid and raising the temperature to m.p., the material was treated for 45 '.

After removal from the bath, rinsing in hot and cold water and drying, the content of 0.30 g of active substance, i.e. 90% of the applied amount, was analyzed analytically.

Only 0.20 g of active substance, i.e. 60% of the applied amount, was found in a fabric treated in the same way using a preparation with the same active substance content but not containing urea.

Example 2

1.5 g of antimole preparation finalized in the same manner as in Example 1, but using a solution of 27.5 g of urea in 85 ml of water and thus containing 9 wt. % urea was dissolved in 3 L of water. In the bath thus prepared, 100 g of wool fabric was treated in the same manner as in Example 1. In the treated fabric, 0.44 g of active substance, i.e. 89% of the applied amount, was analytically detected.

0.29 g of the active substance, i.e. 59% of the applied amount, was found in a fabric treated in the same manner using a urea-free preparation.

Claims (1)

An antimollic agent based on the active ingredient of the formula I n 50 ₂ ch ₂ ci Dissolved in a polytopic alcohol, with an emulsifier, characterized in that it contains 10 to 30 wt. urea, based on the weight of the active substance.