SU732427A1 - Composition for mercerization of textile articles - Google Patents

Description

(54) COMPOSITION FOR MERCERIZATION OF CELLULOSE TEXTILE PRODUCTS

The invention relates to the technology of textile finishing production, namely the mercerization of cellulose textile products. In order to accelerate the wetting of textual products, the mercerization process is carried out in the presence of a wetting agent as various surfactants are used, which contributes to better mercerization and, as a result, improves the evenness of the dyeing of the products, 1с: тоу and color intensity. Known composition for mercerization of fabrics and yarn from cellulosic fiber and a, containing, g / l Caustic and sodium 170-380 Wetting agent (prekormntstsin) 1-8 to 1 liter Wetting agent precormicin G5 is a mixture of non-ionic and anion-active substances and does not contain cresol and special solvents. The introduction of this is wetted into the specified composition provides the latter with a high wetting ability in the absence of foaming {. However, the use of this composition under production conditions worsens the working conditions of the workers due to the strong ethereal odor released by precormicin. Closest to the invention to the technical essence and the achieved technical result, the composition for the mercerization of cellulose textiles containing / g / l: caustic sodium - 280-290, as a wetting agent - sodium salt of 2-ethylhexanol sulfate (preparation of Sulfirol-8) - 2 , 8-3.5 and water up to 1 l 2. However, this composition is characterized by insufficiently high wetting ability and foaming is observed when using it. Thus, the wetting time of harsh cotton fabrics and yarn composition is 23-25 s, and the foaming capacity of the composition, when tested by the known method, is 12-19 mm. Not enough wettability and foaming impair the quality of mercerization. The purpose of the invention is to improve the quality of gerserization by increasing the wetting ability of the composition to reduce foaming.

The goal is achieved by the composition for the cellulose kerseriation of textiles containing, like the well-known composition, caustic sodium, sodium salt of 2-ethyl-xanol sulfate ester and water, as well as additionally a mixture of polyglycol glycol ethers of higher fatty alcohols with a degree of ethoxylation of 20 with the following ratio of g / l;

Caustic Soda28.0-290

Sodium salt

sulphate

2-ethylhexanol ester2, 8-3.5

A mixture of polyethylene glycol ethers

higher fat

alcohols with a degree of oxystillation of 200.08-0.3

WaterEverything

up to 1 l

As a mixture of polyethylene glycol ethers of higher fatty alcohols, for example, the preparation OS-20, the active base of which is a mixture of compounds of the formula:

K-0 (CH2CH O) „H,

where R is the residue of fatty alcohol, and n is on average equal to 20.

This preparation is obtained by oxyethylation of octadecyl alcohol, mixtures of hydrogenated higher fatty alcohol. The wetting ability of the composition relative to the yarn and fabric is determined by the time of immersion of the yarn ring or a circle of fabric with a diameter of 3 cm from the surface below the liquid level. The foaming ability of the composition is determined as follows. 200 MP of the tested composition are introduced into a 1000 m copper cylinder, thereby causing foam formation to blows for 20 s of a perforated plastic disk with a 500 mm long rod attached in the center. With

mainly containing fraction C; (f, mixtures of distilled algae algae fat. The wetting ability of a 2% aqueous solution of the preparation OC-20 is 53 s, and the foaming capacity is 19 mm. The wetting ability of an aqueous solution of sodium hydroxide with a concentration of 285 g / l, containing 0.2 g / l of the preparation OC-20, is 180 s, and the foaming capacity is 19 mm.

The proposed composition has a wetting ability of 4-7 s and a foaming capacity of 5-6 mm, and the known composition has a wetting capacity of 23-25 s and a foaming 5 capacity of 15 mm.

The proposed composition is stable during storage.

For example. A severe cotton yarn or fabric is treated at 18–20 ° C with the compositions 1,2,3,4 indicated in the table.

Compositions 1,2 and 3 are prepared by dissolving, while stirring, the mixture of ethylene glycol ethers of higher fatty alcohols with a degree of hydroxyethylation 20 (preparation OC-20) in a 35% aqueous solution of 2-ethylhexanol sulphate (Sulfirol-8) followed by by mixing the resulting solution with an aqueous solution of sodium hydroxide.

The test results wetting and foaming abilities of the compositions shown in the table. each stroke, the disk is lifted from the bottom of the vessel to the 1000 mark. ml and again lowered to the bottom. After foaming is completed (20 disc strokes) the disc is left in the cylinder. After 3 minutes, replace the height of the column of foam in the cylinder (in mm). Thus, the invention makes it possible to increase the wetting ability of the composition and to reduce foaming when used, resulting in textiles1 & products are moistened faster and more evenly, and mercerization is better.

Claims (2)

1.RJHim, 1973, ref. 23 C 1085. 2. C, B. Laboratory Workshop on finishing technology 5 fabrics, M, Light industry, 1977, p. 48-50 (prototype).