Composition for bleaching wool-containing textile materials

FIELD: textile industry.

SUBSTANCE: composition contains hydrogen peroxide, aqueous ammonia, silicate-containing hydrogen peroxide stabilizer, nonionic or anionic surfactant, and water, said stabilizer being, in particular, taken separately or in various proportions to each other substances selected from group including kaolin, talc, bentonite, zeolite sorbent, and diatomite.

EFFECT: reduced loss in strength, felting tendency, and rigidity of textiles.

2 tbl, 6 ex

 

The invention relates to the technology of the textile materials, namely, bleaching textile materials.

The level of technology

Bleaching textile materials can be as reductive and oxidative compounds (Novoradovskaya T.S., garden SF Chemistry and chemical technology of wool. - M.:Legprombytizdat, 1986, p.77-82).

The effect of blanching reducers unstable to influence developing in air oxidation and is accompanied by a return of the original color of the fibers. Therefore, the greatest application finds the oxidizing composition for bleaching, containing hydrogen peroxide, ammonia, a stabilizer of hydrogen peroxide, which is usually used sodium pyrophosphate, and water (Walter Bernard. The practice of bleaching and dyeing of textile materials. Light industry, 1971, s).

The closest to the essential features of the invention is a composition for bleaching charlesdarwin materials in the form of a tape, yarn and fabrics, containing (g/l): 30% hydrogen peroxide - 30; aqueous ammonia to pH 8-8,5; sodium silicate - 5-7; nonionic surfactant of 0.1 - 0.2 and water up to 1 l (Finishing and dyeing of wool fabrics. Handbook /edited Volkov. - M.: Legprombytizdat, 1985, s-200).

In this part hydrogen peroxide is a bleaching agent, ammonia - bleaching activator, silicate of the three-is - the stabilizer of hydrogen peroxide, a non-ionic surfactant is a wetting agent.

However, the composition has the following disadvantages:

- large losses (up to 30%) the strength of the bleached material due to degradation of the wool fibres;

- high suolakivenkatu bleached fibers and the degree of shrinkage bleached fabrics;

- increase the rigidity of the bleached fibrous material by deposition of silica precipitation;

- environmental health hazards due to the presence in the effluent of a water-soluble silicates, which increases the pH of the environment.

The essence of the invention.

The objective of the invention was to find a composition for bleaching charlesdarwin materials containing hydrogen peroxide, aqueous ammonia, electroceramic stabilizer of hydrogen peroxide, surfactant and water, ensuring the reduction of loss of strength, stiffness and suolakivenkatu charlesdarwin materials and improving the environmental friendliness of the process.

The problem is solved by a composition for bleaching charlesdarwin textile materials, containing hydrogen peroxide, aqueous ammonia, electroceramic stabilizer of hydrogen peroxide, surfactant and water, which as a stabilizer of hydrogen peroxide contains taken separately or in various combinations with one another substance selected from the group VK is causa kaolin, talc, bentonite, zeolite sorbent, diatomite, and as surfactants - nonionic and/or anion active surface active substance with the following content of components, g/l:

Hydrogen peroxide (30%)15-60
Aqueous ammoniato pH 8-9
Taken separately or in various
combination with each other substances
selected from the group including
kaolin, talc, bentonite,
zeolite sorbent, diatomite5-20
Surfactant0,1-1
Waterto 1 l

Distinctive features of the invention are used as silikatmaterialiem stabilizer of hydrogen peroxide, taken individually or in various combinations with one another substance selected from the group comprising kaolin, talc, bentonite, zeolite sorbent, diatomite, and use as surfactants nonionic and /or anion active surface of the substance. These features in conjunction with the known characteristics provide the t following, very significant for the wool industry advantages:

a sharp reduction of the loss of strength by 10-30%;

- reducing suolakivenkatu 6-8%;

- no coarsening of the fiber at the stage of processing and preservation of natural soft wool;

- improving environmental performance by eliminating emissions in the waste water of water-soluble silicates with alkaline reaction, as kaolin, talc, bentonite, zeolite sorbent, diatomite, which is the natural minerals and do not contain substances that represent an environmental hazard. In addition, the invention provides the following advantages:

1. To simplify the method of the subsequent dyeing chrome dyes by eliminating the stage of plating. This will provide:

- reduced labor, material and energy costs;

- more environmentally friendly by eliminating the discharge of waste water, heavy metal ions (chromium);

2. The possibility of applying the composition for bleaching cellulosic fabrics and silk that will expand the scope of its use.

Information confirming the possibility of carrying out the invention

The composition contains the following components:

Hydrogen peroxideGOST 3760-99
Aqueous ammoniaGOST R 50632-93
Kaolin, t is lik, bentonite,
zeolite sorbent, diatomiteGOST 9169-75

As surfactants can be used, for example, the following:

MetexSalt of the ester of phosphoric acid.
Anion active surfactants. THE 2484-184
-05744685-01
Sulfacid 61The composition of anion active
and nonionic surfactants. THE 2484-143-
0574685-95
Phenoxy 9/10 BVThe composition of a nonionic
ethoxylated products. TU
2484-097-05744685-95
VelanAnion active surface active
substance based on ethoxylated
the alcohols. THE 2484-189-057744685-2002

The composition can be used for various range charlesdarwin textile materials, namely rovings, yarns, fabrics, knitted fabrics containing synthetic or natural fibers.

The composition is prepared in a known manner, traditionally used in technology Bel is tion. For the water under stirring enter in the necessary quantities of stabilizer, surfactants, ammonia and hydrogen peroxide. Bleaching of textile materials is conducted according to conventional technology, the module baths 50-100.

Qualitative indicators of bleaching was determined in the same way and for the prototype, and for the proposed structure.

About the whiteness of textile materials judged by the reflection coefficient is determined on the spectrophotometer SPEKOL - 11" at a wavelength of 540 nm.

The stiffness of rovings were evaluated organoleptically and tissue - Express-method of determining the deflection angle from horizontal fixed sample size 4x6 see Larger deviation angle corresponds to lower stiffness (Laboratory of textile materials. /Under the editorship of Koblyakov A.I.): Legprombytizdat, 1986. - pp.261-264).

The destruction of the wool fibres was evaluated by means of sorption by the ability to be colored by the dye methylene blue. Greater damage to the fiber has a large color intensity (K/S), which was calculated by the formula Gurevich-Kubelka-Munch on the basis of a measurement of reflectance samples on a spectrophotometer SPEKOL - 11" at a wavelength of 590 nm. Strength characteristics of the tissue was estimated by the breaking load (Laboratory of textile materials. /the od editor Koblyakov A.I.): Legprombytizdat, 1986. - s-245).

Suolakivenkatu wool was estimated by the change of the geometric dimensions of the sample (tissue) and increased density (for fiber).

Qualitative indicators blanching of various textile materials using different stabilizers in various quantitative content in the whitening composition is shown in table 1 for fabric and in table 2 for the fiber.

Composition for bleaching charlesdarwin textile materials, containing hydrogen peroxide, aqueous ammonia, electroceramic stabilizer of hydrogen peroxide, surfactant and water, characterized in that as a stabilizer of hydrogen peroxide it contains taken separately or in various combinations with one another substance selected from the group comprising kaolin, talc, bentonite, zeolite sorbent, diatomite, and as surfactants - neinogennye or anionic surface-active agent with the following content of components, g/l:

hydrogen peroxide (30%)15-60
aqueous ammoniato pH 8-9
taken separately or in various
combination with each other substances
selected from the group comprising kaolin,
talc, bentonite, zeolite sorbent, diatomite5-20
neinogennye or anionic
surfactant0,1-1,0
waterup to 1l



 

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FIELD: textile industry.

SUBSTANCE: composition contains hydrogen peroxide, aqueous ammonia, silicate-containing hydrogen peroxide stabilizer, nonionic or anionic surfactant, and water, said stabilizer being, in particular, taken separately or in various proportions to each other substances selected from group including kaolin, talc, bentonite, zeolite sorbent, and diatomite.

EFFECT: reduced loss in strength, felting tendency, and rigidity of textiles.

2 tbl, 6 ex

FIELD: light and fur industry.

SUBSTANCE: invention relates to a composition used for whitening hair cover of fur hides. The composition comprises sodium chloride, hydrogen peroxide, potassium persulfate, the composition based on mineral and organic acid salts - "Antikolor 1" or "Antikolor-2" as an agent for stabilizing pH value, and a mixture of primary saturated alcohols - "Antikolor-3" as a protective additive. The composition provides reducing the negative effect of leather and hair cover of hide. The composition can be used in raw-dye manufacture in treatment of hides with pigmented hair cover, for example, hides of karakul group.

EFFECT: valuable properties of composition.

2 tbl

FIELD: light industry, in particular, raw material dyeing processes used, for example, in whitening of mink skin fur hair.

SUBSTANCE: method involves providing additional tinning of skin with aqueous composition containing sodium chloride, composition based on low-molecular alcohol polyacetals, mixture of non-ionogen surfactants and cyclic terpenes; whitening for 2.0-4.5 hours with the use of aqueous composition containing sodium chloride, potassium persulfate, composition based on mineral and organic acids as pH stabilizers, mixture of primary fatty alcohols as protective admixture and 30%-hydrogen peroxide; providing reduction with the use of aqueous composition comprising sodium chloride, oxalic acid and mixture of non-ionogen surfactants with cyclic terpenes.

EFFECT: improved consumer properties of fur skins.

2 tbl

FIELD: process for treatment of textile materials, in particular, whitening of flax fiber for producing of hygroscopic wool used for medicine purposes.

SUBSTANCE: method involves subjecting flax fiber to oxidizing cooking followed by whitening with the use of hydrogen peroxide in the presence of stabilizing preparation based on oxyethylidene diphosphonic acid; after final rinsing, providing brightening processing, preferably with the use of solution containing higher fatty acid based softener used in an amount of 0.5-1.0 g/l. Method is realized in industrial plants with the use of proper equipment and chemical substances available and produced on industrial scale by home enterprises. Said method does not require substantial alterations in chemical processes.

EFFECT: increased whitening extent, capillarity and moisture absorbing capacity of wool produced.

2 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: particles contain inner coating layer that consist of at least one hydrate-forming mineral salt, and outer coating layer, including 0.2-3 wt % alkali metal silicate with module more than 2.5, particularly 3 to 5. Outer layer is obtained using alkali metal silicate solution with alkali metal silicate concentration 2 to 20 wt %. Dissolution time can be extended by alkali metal silicate concentration lowering in solution used, coating material amount being the same. Dissolution time can be extended significantly according to coating layers sequence and solution concentration with low quantity of alkali metal silicate.

EFFECT: extension of dissolution time.

18 cl, 7 tbl, 18 ex

FIELD: chemistry.

SUBSTANCE: invention relates to bleaching compositions, which in fact do not contain peroxide bleaches, for bleaching of fabrics. Described is liquid bleaching composition with pH 10 or lower, which contains: (a) complex compound of transitional metal as catalyst of bleaching in air, (b) from 0.001 for 3 wt/wt % of odorant.

EFFECT: obtaining composition, whose bleaching activity is more, than 10 times higher as compared with bleaching activity of composition, containing as odorant molar equivalent of citronellal.

5 cl, 3 tbl, 62 ex

FIELD: textile, paper.

SUBSTANCE: invention concerns methods of flax fiber dyeing and preparation for spinning and can be applied in textile industry. Combined method of dyeing and preparation for spinning involves deacidification, processing by digester dye solution for 90-95 minutes at 40-50°C, the solution including vat colour, sodium bicarbonate, sulfonol NP-3 and anhydrous synthanol, polyenzyme preparation with enzyme activity indicators, units per ml of solution: endopolygalacturonase - 20-40; pectinesterase - 2.5 - 8.0; protease - 0.2-0.4; exopolygalacturonase - 0.6-1.5; exogalactosidase - 0.3-0.5; exoxylosidase - 0.3-0.8; exoglucanase - 0.4-1.0. Further the mass is heated to the boiling point, matured for 30-60 minutes, flushed by cold water. Oxidising processing is performed for 15-25 minutes at 20-25°C in stabilised peroxide solution including 0.3-0.4 g/l of hydro peroxide (100%), 1-2 g/l of laundry soap, and alkaline agents to comprise total alkalinity of 5.5-6.0 g/l rated per caustic soda, with further heating for 20-50 minutes to 95-100°C and maturing for 20-30 minutes, followed by double flush with detergent first and with water next, and further deacidification at 45-50°C for 15-20 minutes and flushing.

EFFECT: reduced irregularity of geometrical parametres and durability of flax semiproducts; improved colorability and colour evenness of textile semiproducts; more environment-friendly process and improved labour health.

1 tbl, 3 ex

FIELD: textile, paper.

SUBSTANCE: invention concerns method of flaxen roving preparation for spinning and can be applied in textile industry. Method of enzyme and peroxide preparation of flaxen roving for spinning involves deacidification performed before enzyme processing for 90-95 minutes by polyenzyme preparation solution with enzyme activity indicators, units per ml: endopolygalacturonase - 20-25; pectinesterase - 0.8-4.7; protease - 0.2-0.3; and exopolygalacturonase - 0.2-0.4. Further the roving is flushed by water and processed for 90-95 minutes in alkaline peroxide solution at hydro peroxide concentration of 0.4-0.5 g/l of active oxygen and total alkalinity of 6.5-7.0 g/l rated per caustic soda, then flushed with detergent and water and undergoes counter-microbe processing.

EFFECT: reduced tear load in moist unprocessed roving up to 50-61%; obtainment of thin yarn meeting the requirements for 1 grade in thickness and stability of physical and chemical yarn properties; enhanced yarn strength in 1,2-1,4 times; improved esthetics of woven canvas exterior.

1 tbl, 3 ex

FIELD: textile, paper.

SUBSTANCE: invention concerns method of flaxen roving preparation for spinning and can be applied in textile industry. Method of enzyme and peroxide preparation of highly lignified flaxen roving for spinning involves deacidification, enzyme processing at 40-50°C for 90-95 minutes by polyenzyme preparation solution with enzyme activity indicators, units per ml: endopolygalacturonase - 20-25; pectinesterase - 2.5-4.7; protease - 0.2-0.3; exopolygalacturonase - 0.6-0.1; exogalactosidase - 0.2-0.4; exoxylosidase - 0.3-0.5; and exoglucanase - 0.6-0.8. Further the roving is heated to the boiling point and matured for 20-25 minutes, flushed by water and processed for 90-95 minutes in alkaline peroxide solution at hydro peroxide concentration of 0.6-0.8 g/l of active oxygen and total alkalinity of 6.5-7.0 g/l rated per caustic soda. Then the roving is flushed with detergent and water and undergoes counter-microbe processing.

EFFECT: fiber whitening degree enhanced up to 54-56%; obtainment of thin yarn meeting the requirements for both "1 high-flaxen" and "1 high tow" grades by GOST 10078-85 in line density and line density and tear load variation rates; reduced yarn tear rate in weaving process to 40-50 tears for 100 spindles per hour; enhanced yarn strength in 1,2-1,4 times; improved esthetics of woven canvas exterior.

1 tbl, 3 ex

FIELD: textile, cotton.

SUBSTANCE: invention refers to the textile industry in particular, to the technology of the bleaching of flax-containing fabrics and can be used for the production of the bleached woven linens or for the preparation of the fabrics for colouring and stamping. It describes the method of the fermentation and peroxide bleaching of the flax-containing fabrics including enzymatic procession by the soaking into the 40-45°C solution of the multienzyme preparation with the indicator the enzyme activity, in un/ml: endopolygalacturonase - 7-10; α-amylase - 8.8-9.2; β- amylase - 0.5-0.6; γ- amylase - 0.2-0.5; pectinesterase - 1.0-1.5; exopolygalacturonase - 0.5-0.7; exogalactosidase - 0.3-0.4; exoxylosidase - 0.2-0.3; exoglucanase - 0.3-0.5, with the addition of the sodium bicarbonate 20-25 g/l and penetrating agent, maturing the wet squeezed fabric and its steaming in 85-95°C temperature during 20-30 min.; intermediate washing with the acidification in oxalic acid solution 2.5-5 g/l, high-temperature peroxide bleaching by the stabilised alkaline-peroxide solution with the peroxide concentration 2.2-2.9 g/l with active oxygen for one stage, washing and drying.

EFFECT: invention helps to increase the level of the removal of starch size before peroxide bleaching up to 80-85%; it increases the speed of the capillary soaking of water solution and improves uniformity of the capillary characteristics of the fabric; it increases the strength properties of the fabric, decreases its rigidity to 96-125 mN·cm2 because of larger removal of the lignin; it decreases the attenuationof the dyeing of colour warpings of the tapestry linens; it simplifies the process and reduce its duration.

2 cl, 1 tbl, 3 ex

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