RU2058457C1 - Auxpliary textile agent for peroxide bleaching of textile materials - Google Patents

Abstract

FIELD: textile finishing production in preparing fabrics from cellulose and mixed fibers for dyeing. SUBSTANCE: the auxiliary textile agent for peroxide bleaching comprises (wt %): 7.8-14.0 polyoxyethylene glycol acetal of formula: RO(CH₂CH₂O)_n(CH)₃CHOC₄H₉,, wherein R is C₈-C₁₈ or alkylphenyl containing 8-12 carbon atoms in alkyl and n is 6-13; 10.4-18.2 mixture of potassium or sodium salts of dialkylpolyethylene glycol esters of phosphoric acids containing 8-10 carbon atoms; 1.6-2.8 disodium salt of styrene-maleic anhydride copolymer having polymerization degree of 6000-10000; 0.2-0.8 1- hydrooxyethylene-diphosphoric acid or its water soluble salt, and the water balance. Properties: whiteness of coarse calico fabric, article 142 82.2-8.4.8%; viscosity of copper-ammonia cellulose solution according to GOST 8837-83 1.5-1.8 conventional units; capillarity according to GOST 3816-81 135-160 mm in 30 s, degree of desizing according to TEGEWA procedure with mine-mark scale 6.0- 7.5 marks. EFFECT: improved properties of the auxiliary textile agent. 3 tbl

Description

C₄H₉, где R C₈-C₉, n 10-12, получаемого взаимодействием алкилфенилполиоксиэтиленгликолевого эфира формулы RC₆H₄O(CH₂CH₂O)_nH с н-винилбутиловым эфиром, и алкилполиоксиалкиленгликолевого эфира формулы R′O(CH₂-

O)_mH, где R' С₁₀-С₁₃; R" H₂CH₃, m 8-12 при массовом соотношении ацеталь-алкилполиоксиалкиленгликолевый эфир, равном (50-80):(20-50). Это ТВВ обладает высокой смачивающей способностью (39-40 с, хлопок, 1 г/дм³), эффективно удаляет загрязнения различного характера, обладая высоким моющим и обезжиривающим действием. Однако это ТВВ обладает слабым стабилизирующим действием в щелочной среде по отношению к пероксиду водорода, вследствие чего происходит деструкция целлюлозных материалов, снижается механическая прочность волокна, что характеризуется снижением вязкости медноаммиачных растворов целлюлозы (1,1 вместо 1,5-1,8 условных единиц). В связи с отсутствием у описанного ТВВ стабилизирующего эффекта оно может применяться только совместно со стабилизатором силикатом натрия в концентрации не менее 10 г/дм³.The invention relates to the field of organic chemistry, in particular to a textile auxiliary substance (TWB) for the process of peroxide bleaching and the combined process of boiling and bleaching of textile materials from cellulose and mixed fibers. TBV is known for the preparation processes (washing, bleaching, decoction, combined process of bleaching and decoction) of textile materials from various fibers, which is a mixture of two nonionic surface-active substances (nonionic surfactants): acetaldehyde acetal of the formula RC ₆ H ₄ O (CH ₂ CH ₂ O)

C ₄ H ₉ , where RC ₈ -C ₉ , n 10-12, obtained by reacting an alkyl phenyl polyoxyethylene glycol ether of the formula RC ₆ H ₄ O (CH ₂ CH ₂ O) _n H with n-vinyl butyl ether and an alkyl polyoxyalkylene glycol ether of the formula R′O ( CH ₂ -

O) _m H, where R 'C ₁₀ -C ₁₃ ; R "H ₂ CH ₃ , m 8-12 with a mass ratio of acetal-alkyl polyoxyalkylene glycol ether equal to (50-80) :( 20-50). This TVB has a high wetting ability (39-40 s, cotton, 1 g / dm ³⁾ effectively removes impurities of various kinds, having high cleaning and degreasing action. However, it TIA has a weak stabilizing effect in an alkaline medium with respect to the hydrogen peroxide, resulting in degradation of cellulosic material occurs, decreases the mechanical strength of the fibers, which is characterized by a reduction in viscosity mednoam iachnyh cellulose solutions (1.1 instead of 1.5-1.8 arbitrary units). In the absence described in TIA stabilizing effect it can only be used together with the stabilizer of sodium silicate in a concentration of at least 10 g / ^dm3.

 Materials bleached using the specified TVB have a rather high degree of whiteness and capillarity. However, such a preparation is not effective in the process of peroxide bleaching of textiles made of cotton and mixed fibers on high-performance equipment of continuous operation, i.e., it does not provide the necessary whiteness and capillarity of the products without the use of sodium silicate.

 The objective of the invention is to obtain a textile auxiliary substance having an optimal complex of surface-active substances, effective in peroxide whitening processes and the combined process of decoction and bleaching of fabrics from cotton and mixed fibers on continuous devices with a high speed of tissue movement, providing high degrees of capillarity, whiteness and desizing without loss of mechanical strength.

 To solve the problem proposed textile auxiliary substance of the following composition, wt.

C₄H₉, где R алкил с С₈-С₁₈ или алкилфенил, содержащий в алкиле 8-12 атомов С, а n6-12 7,8-14,0 (ТУ 6-36-80-0-91).Polyoxyethylene glycol acetal of the formula: RO (CH ₂ CH ₂ O)

C ₄ H ₉ , where R is alkyl with C ₈ -C ₁₈ or alkyl phenyl containing 8-12 C atoms in the alkyl, and n6-12 7.8-14.0 (TU 6-36-80-0-91).

где R¹ алкил С₈-С₁₀,
а М К или Na (ТУ 6-02-1836-86) 10,4-18,2 Динатриевая соль сополимера стирола с малеиновым ангидридом со степенью полимери- зации 6000-10000 1,6-2,8 1-гидроксиэтилиден- дифосфоновая кислота или ее Z соль (ТУ 6-02-1215-81) 0,2-0,8 Вода Остальное
ТВВ указанного состава получают последовательным смешением компонентов. Натриевую соль сополимера стирола с малеиновым ангидридом растворяют при 40-50^оС в дистиллированной или деминерализованной воде. К полученному раствору сополимера добавляют сначала диалкилполиэтиленгликольфосфат в виде соли, затем алкил- или алкилфенилполиэтиленгликольацеталь и, наконец, 1-гидрооксиэтилидендифосфоновую кислоту или ее соль (динатриевую, дикалиевую или димоноэтаноламиновую) в виде 50%-ного водного раствора до получения рН 6-8 для раствора с концентрацией 5 г/дм³.A mixture of potassium or sodium salts of dialkylpolyethylene glycol esters of phosphoric acid of the formula:
[R ¹ O (CH ₂ CH ₂ O) ₆ ] ₂ P

where R ¹ alkyl C ₈ -C ₁₀ ,
a M K or Na (TU 6-02-1836-86) 10.4-18.2 Disodium salt of a styrene-maleic anhydride copolymer with a degree of polymerization of 6000-10000 1.6-2.8 1-hydroxyethylidene diphosphonic acid or its Z salt (TU 6-02-1215-81) 0.2-0.8 Water Else
TBV of the specified composition is obtained by sequential mixing of the components. The sodium salt of a copolymer of styrene with maleic anhydride is dissolved at 40-50 ^{° C} in distilled or demineralised water. First, dialkyl polyethylene glycol phosphate in the form of a salt, then alkyl or alkyl phenyl polyethylene glycol acetal and finally 1-hydroxyethylidene diphosphonic acid or its salt (disodium, dipotassium or dimonoethanolamine) are added to the resulting copolymer solution in the form of a 50% aqueous solution of 6 to 6 aqueous solution with a concentration of 5 g / dm ³ .

TVB is obtained in the form of an easy-to-dose opaque liquid with a mass fraction of the active substance of 20-35%
The resulting TBB is biologically mild.

 The invention is illustrated by examples and table. 1-3. Table 1 shows the names and quantitative ratio of the components in the composition of TBB, in table. 2 recipe for a working solution for tissue processing using the proposed TBB, and table 3 shows the quality indicators of the tissue treated with the above TBB.

Example 1. In a flask equipped with a stirrer and a thermometer, load 560 ml of distilled (or demineralized water) and 153 g of an aqueous solution of Na-salt of styrene-maleic anhydride copolymer with a degree of polymerization of 6000-10000 (or 24 g of 100% Na-salts). The mass is heated to a temperature of 40-50 ^{° C} and stirred, and then charged at this temperature 160 g (0.171 mol • g) technical potassium salt of di (alkyl polyglycol) phosphoric acid ester and 120 g (0.157 g-mole) nonilfenilpolioksietilenglikolatsetalya (n 10) and stir again.

After that, 7 g (0.0017 g • mol) of an aqueous solution of 1-hydroxyethylidene diphosphonic acid (HEDP) with a mass concentration of 50% is poured into the resulting mass to obtain a homogeneous, non-stratifying mass, controlling the pH of the aqueous solution with a concentration of 5 g / dm ³ , which must match a value of 6-8. The result is 1000 g of the target product in the form of an opaque homogeneous liquid with a mass fraction of active substance of 30.45% and a mass ratio of components, wt.

Nonylphenylpoly-
hydroxyethylene glycol-acetal 12
Potassium salt
(alkylpolyethylene-
glycolic ester of phosphoric acid 15.7
Copolymer Na salt
maleic anhydride styrene 2.4
1-Hydroxyethylidene diphosphonic acid 0.35 Water Else
In similar conditions, receive TVB according to examples 2-7 (table 1).

 The resulting TVBs are opaque viscous liquids that are highly soluble in water.

 The effectiveness of the drug was characterized by the degree of whiteness, capillarity and the degree of desizing of bleached tissue. The mechanical strength was estimated by the specific viscosity of copper-ammonia solutions.

 Determination of the whiteness of the bleached sample is carried out on Datacolor devices, a leukometer or on devices of a similar type in accordance with GOST 18054-72. The degree of desizing is determined by the method of TEGEWA, BASF.

 The viscosity of copper ammonia cellulose solutions is determined according to GOST 8837-83; capillarity in accordance with GOST 3816-81.

PRI me R 8. The process of bleaching cotton fabric (calico art. 142) according to the continuous method. The tissue sample weighing 100 g was subjected to padding for 10 s, twice in working solution, prepared according to the recipe given in Table 2, at a temperature of 45-50 ^{° C} and spinning the 100-110%
The treated fabric zaparivayut in zaparno apparatus for 60 minutes at a temperature of 100-102 ^{° C,} after which the tissue sample was washed 2 times in hot water at a temperature of 70-80 ^{° C} and 2 times in warm water (30-40 ° ^C). Bleached and the washed sample was dried in a dryer at a temperature of 105-115 ^{° C,} after which the fabric quality indicators, which are presented in the Table. 3. Under similar conditions, the process of bleaching the fabric is carried out according to examples 9-14. Quality indicators of the treated tissue according to examples 9-14 and the prototype are given in table.3.

PRI me R 15. Heavily contaminated fabric (calico, article 142) is bleached according to the method of example 8, but the composition of the whitening solution includes sodium silicate in the following ratio of components in the working solution, g / dm ³ : Caustic soda (100% - ny) 2.2 Hydrogen peroxide (100%) 5.5 TVB according to example 1 2.0 Sodium silicate 2.0
Qualitative indicators similar to those given in Table 3 can be obtained by using the described TWB for the combined process of boiling and peroxide bleaching.

 Thus, as follows from the data of table 3, the proposed TVB provides efficient tissue processing in the absence of a wetting agent: brightness of 84.8% (according to prototype 75), without loss of mechanical strength, the viscosity of a copper-ammonia solution of 1.8 (according to prototype 1, 1), and also allows in most cases to exclude the use of an inorganic stabilizer of hydrogen peroxide, sodium silicate with the continuous organization of the bleaching process.

 Due to the listed properties of the proposed drug, it can be used in the process of peroxide bleaching and / or decoction of fabrics from cotton, bast, artificial, synthetic and mixed fibers on high-performance continuous apparatus.

Claims (1)

TEXTILE AUXILIARY SUBSTANCE FOR TEXTILE MATERIAL PEROXIDE BLEACH containing a nonionic surfactant polyoxyethylene glycol acetal and water, characterized in that it contains a compound of the general formula as acetal of polyoxyethylene glycol

where RC ₈ C _{1 8} -alkyl or alkylphenyl containing in the alkyl 8 12 carbon atoms;
n 6 12,
and additionally, as an anionic surfactant, a mixture of potassium or sodium salts of dialkylpolyethylene glycol esters of phosphoric acid of the General form

where R ₁ C ₈ C _{1 0} -alkyl;
M K, Na or the remainder of monoethanolamine,
and as complexing agents, the disodium salt of a copolymer of styrene with maleic anhydride with a polymerization degree of 6000 10000 and 1-hydroxyethylidene diphosphonic acid or its salt in the following ratio of components, wt. Polyoxyethylene glycol acetal of the specified formula 7.8 14.0
A mixture of potassium or sodium salts of dialkylpolyoxyethylene glycol esters of phosphoric acid of the specified formula 10.4 18.2
Disodium salt of a copolymer of styrene with maleic anhydride with a degree of polymerization of 6000 10000 1.6 2.8
1-Hydroxyethylidene diphosphonic acid or its salt 0.2 0.8
Water Else

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