CN101487184B - Low-temperature scouring and bleaching adjuvant composition and method for producing the same - Google Patents
Low-temperature scouring and bleaching adjuvant composition and method for producing the same Download PDFInfo
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Abstract
The invention relates to a low-temperature scouring and bleaching promoter composition and a preparation method thereof. The composition comprises 2.5-5.5% of Tetra acetyl ethylene diamine (TAED), 0-0.5% of hydrogen peroxide decomposition catalyst, 5-15% of bleaching potentiator, 10-15% of chelating agent, 77-54.5% of carrier and 5-10% of surfactant, according to the weight percentage. The preparation method comprises the steps as follows: the carrier, the TAED, the hydrogen peroxide decomposition catalyst, the chelating agent and the bleaching potentiator are sequentially added in a powder mixer and mixed uniformly for 45-60min; subsequently, the surfactant is added and all mixtures are mixed for 15-30min and then discharged, thus obtaining the composition. The low-temperature scouring and bleaching promoter composition belongs to the environment-protective promoter composition, contains no phosphor and other substances harmful to the environmental protection, has no AOX problem, achieves the object that one promoter replaces more than four promoters, and facilitates processing and quality control.
Description
Technical field
The invention belongs to environment-friendly low-temperature scouring and bleaching assistant and preparation field thereof, particularly relate to a kind of low-temperature scouring and bleaching assistant composition and method of making the same.
Background technology
Cotton fabrics is made up of cotton fiber.The pectic substance that contains 0.4-1.2% on the cotton fiber, the grease wax of 0.4-1.2%, the nitrogen substance of 1.0-1.9%, natural impuritys (being referred to as the commensal of cotton fiber) such as the ash content of 0.7-1.6% and a spot of pigment also have cotton seed hulls (being referred to as accompaniment).Commensal mainly is present in the cuticula and first rubber wall of cotton fiber, and their existence makes cotton fiber have hydrophobicity, influences water imbibition, hinders the infiltration and the diffusion of dyeing process dyestuff, and cotton seed hulls influences the outward appearance of fabric.So cotton fabrics must float operation boiling of its dyeing and finishing commensal, accompaniment are removed, to guarantee wetting permeability, whiteness and the outward appearance of cotton fiber, for necessary condition is created in follow-up dyeing, stamp, back arrangement.
General at present one step of the alkali oxygen single bath process that adopts is floated in boiling of cotton fabrics.Originally traditional kiering, bleaching two step method, time long eliminate big because of the power consumption water consumption, and no longer recommend to use because of the halogen environmental issue with technologies such as sodium hypochlorite bleaching and sodium chlorites after the kiering.
In alkali oxygen boiling, bleaching-bathing method; With hydrolytic reagent and the saponification agent of caustic soda as nitrogen substance, pectin, grease wax; Caustic soda also is the swelling agent of cotton seed hulls, use again surfactant as the refining agent of major ingredient with analyte emulsification, dispersion and washing, and remove from cotton fiber; And be the bleaching major ingredient with the hydrogen peroxide solution, hydrogen peroxide solution decomposes under certain condition, and its catabolite destroys pigment and plays discoloration, removes pigment.The final impurity of removing reach due whiteness, hair effect (capillary effect), but these reactions must be carried out at high temperature all; The discoloration of hydrogen peroxide solution simultaneously also will just play one's part to the full more than 95 ℃; It is very slow that decomposing hydrogen dioxide solution goes out the speed of effective bleaching composition when low temperature, so traditional handicraft all is at 100 ℃, even carry out in 135 ℃ the high-temperature high-pressure apparatus; Boil and float time 60-90 minute; It is very big to consume quantity of steam, and 1 ton of cotton knitwear boils to float and needs 5～6 tons of steam approximately, accounts for about 60% of whole dyeing and finishing steam consumption.
At present, energy-saving and emission-reduction also become the common recognition in the whole world, the dyeing and finishing industry expert so the low-temperature blanching technology that begins one's study.Report that from existing research carry out low temperature process low temperature kiering and cold bleaching nothing more than, its study route is nothing more than biological enzyme and chemical method.
Biological enzyme is used to generally boil that to float be main, with the mixture of enzymes such as pectase, protease, cellulase and be equipped with synergist, under 50～60 ℃ of conditions, carries out kiering; Can reach the purpose of kiering impurity elimination, but cotton seed hulls can't remove thoroughly, and will improve whiteness; Also must carry out hydrogen peroxide bleaching process; But also must two step method, and hydrogen peroxide bleaching still must carry out by high temperature, can't realize low temperature process; Have the researcher to adopt laccase to carry out 50～60 ℃ bleaching simultaneously, but whiteness can't reach requirement; Also have the researcher with biology enzyme and hydrogen peroxide solution with bathing low temperature process, but because of the anti-dioxygen water-based of biology enzyme very poor, so still manque up till now big production report and related patent U.S. Patent No..
Utilize chemical method to carry out the cotton fabrics low-temperature blanching; Use with mutually with hydrogen peroxide solution activator, hydrogen peroxide solution, alkali, surfactant; Under 70～80 ℃, boil float-the method pre-treatment of bath reaches the report that better whiteness, hair are imitated, but the concrete composition and the ratio of undeclared activator; Also useful sodium pyrophosphate, calgon, sodium metasilicate and hydrogen peroxide solution carry out cold bleaching, and the operation through one emulsifying agent high temperature emulsification removal grease wax can reach and should produce effect, the boiling, bleaching-bathing but this technology is unrealized again; Also useful chlorinated polyvinyl chloride, pine tar, surfactant, caustic soda, hydrogen peroxide solution and sodium metasilicate carry out low-temperature blanching, but because of chlorinated polyvinyl chloride has the environmental issue of organic halogen (AOX), and the consumption cost is high and can not promote.
Use the hydrogen peroxide bleaching activator; The decomposition temperature of hydrogen peroxide solution is reduced, and enable to bring into play the effective resolution ratio raising of hydrogen peroxide solution of discoloration and activator and the higher material of hydrogen peroxide solution reaction generation bleaching effect; Like peracetic acid, the serviceability temperature of bleaching reduces.Activator has been used in detergent industry for many years, as containing sodium peroxydisulfate (decompositing the material of hydrogen peroxide solution) and corresponding activator in the most washing powder of the U.S..The activator of research has tens of kinds at present; Like tetra acetyl ethylene diamine (TAED), pelargonyl group Oxybenzene sulfonate (NOBS), benzoyl beta-lactam, methyl benzamide beta-lactam, tert-butoxy benzoyl beta-lactam, N-acyl group valerolactam etc. and their mixture thereof or the like, but because of manufacturing, the price of activator, originate and be used for boiling of cotton fabrics and float the problems such as control of decomposing hydrogen dioxide solution speed and use wideless.
Remove in the tradition boiling, bleaching-bathing technology and add hydrogen peroxide solution, caustic soda; Also to add auxiliary agent more than three kinds such as hydrogen peroxide bleaching stabilizer, chelating agent, brightening agent, refining agent; Troublesome poeration, inaccurate in the operation as long as a kind of auxiliary agent adds, just might have influence on cotton fabrics and boil and float crudy.
Environment-friendly low-temperature scouring and bleaching assistant and low temperature process are supporting, realize the low temperature pre-treatment, and in energy-saving and cost-reducing, guarantee pressing for of product quality.At present; The trial of low temperature process has been arranged in the dyeing and finishing innovation, as: the low temperature cold-pad-batch preparation and the bleaching process of COTTON FABRIC, under the situation that does not have the low-temperature oxidation activator to exist; The hydrogen peroxide solution of employing routine/when the NaOH system is carried out cold bleaching; Need to increase the oxidant consumption, prolong the processing time, though can obtain certain effect like this; But because hydrogen peroxide solution efficient at low temperatures is very low, it is good and take oversize defective that this technology exists cotton seed hulls to remove clean, fabric whiteness and water imbibition all the time.
Summary of the invention
Technical problem to be solved by this invention provides a kind of low-temperature scouring and bleaching assistant composition and method of making the same, and this low-temperature scouring and bleaching assistant composition belongs to the environmental protection assistant composition, the material of not phosphorous and harmful environmental protection, no AOX problem; Realize that a kind of auxiliary agent substitutes auxiliary agent more than four kinds, convenient processing and quality control.
A kind of low-temperature scouring and bleaching assistant composition of the present invention; Comprise: hydrogen peroxide solution activator 2.5～5.5%, decomposing hydrogen dioxide solution catalyst 0～0.5%, bleach boosters 5～15%, chelating agent 10～15%, carrier 77～54.5%, surfactant 5～10%, its composition by weight percentage of more than filling a prescription.
Said hydrogen peroxide solution activator is tetraacetyl ethylene diamine (TAED), and tetraacetyl ethylene diamine and hydrogen peroxide solution reaction generate the peracetic acid series products, and peracetic acid class oxidation bleaching ability force rate hydrogen peroxide solution is high, has quickened bleaching.And in the presence of the hydrogen peroxide solution activator; Hydrogen peroxide solution and SODIUM PERCARBONATE etc. (40 ℃ of beginnings) at a lower temperature just can be realized effective decomposition (product that effectively decomposes destroys pigment); Realize that low temperature just begins bleaching, practiced thrift bleaching greatly and washed the heat energy that is consumed, and make the bleaching process lengthening.Higher because of tetraacetyl ethylene diamine activator price, so be used, activator and catalytic decomposition are carried out synchronously with the decomposing hydrogen dioxide solution catalyst, bleaching temperature is reduced and the bleaching efficiency raising.Conventional high-temperature technology is boiled at 98-100 ℃ and is floated, and boils to float when bathing heating 80--100 ℃ to consume steam maximum, floats if realize boiling below 80 ℃, can practice thrift steam in a large number.
Said decomposing hydrogen dioxide solution catalyst is the salt of various transition-metal cations; Like manganese, zinc, aluminium etc. and have the chelating agent that the catalytic metal CATION is had given stability constant; Manganese salt or zinc salt, aluminium salt etc. like the manganese salt of ethylenediamine tetra-acetic acid and manganese gluconate salt, ethylenediamine tetraacetic (methylene phosphoric acid); The content that their rationally exist in bleaching liquid, with guarantee its effectively the catalysis hydrogen peroxide solution just can decomposite enough bleaching effective ingredients at a lower temperature and pigment on the BLEACHED FABRIC, composite catalyst can be brought into play the Synergistic effect; Match with the hydrogen peroxide solution activator again, guarantee hydrogen peroxide solution cold bleaching speed and effect.
Said bleach boosters is one or more in perborate, persulfate, the percarbonate; Like SODIUM PERCARBONATE itself is a kind of bleaching agent, and its best bleaching temperature is 70-80 ℃, just in time consistent with the low-temperature blanching temperature range of the proposition of developing; And under hydrogen peroxide solution activator and decomposition catalyst effect; 35 ℃ just begin to decomposite hydrogen peroxide solution and further effectively are decomposed into the bleaching effective ingredient and destroy pigment, and bleaching efficiency improves, and effectively improves the whiteness of fabric; The adding of SODIUM PERCARBONATE, being equal to the hydrogen peroxide solution consumption increases, help the removal of cotton seed hulls, has overcome the problem that cotton seed hulls removal ability that low temperature process possibly bring weakens.
Described chelating agent is tetrasodium ethylenediamine tetraacetate, ethylenediamine tetramethylene phosphoric acid, gluconic acid sodium salt etc.; Chelating agent is to metal ion-sensitive such as iron, copper; Chelating ability is good; Its effect is that chelating boils and floats in the bath, exists on the fabric; More at random metal ion of content (and these content metal ion more at random can cause hydrogen peroxide solution to produce irregular, out of contior, quick decomposition and cause that hydrogen peroxide solution can not carry out rationally pigment on the fabric, effective destruction, but can cause the tendering even broken hole of fabric), the adding of chelating agent; To the effective chelating of metal ions such as iron, copper, guarantee hydrogen peroxide solution under activator, catalyst action, carry out controlled, effectively decompose and play the effect of bleaching.
Described carrier is 100-200 purpose diatomite, kaolin etc.; It act as: 1. the hydrogen peroxide solution activator, decomposition catalyst is water-soluble all not good enough; For guaranteeing that hydrogen peroxide solution activator, decomposition catalyst float in the bath, distribute equably on the fabric boiling; Let activator, decomposition catalyst be distributed in equably in the carrier, then be uniformly distributed in to boil and float each orientation on bath, the fabric with carrier diatomite.Prevent that effectively activator, the inhomogeneous decomposing hydrogen dioxide solution that causes of catalyst distribution are inhomogeneous; Cause that finally whiteness is inhomogeneous; Even the indivedual positions of fabric activator, catalyst are too concentrated, cause hydrogen peroxide solution to concentrate to decompose and cause that breaking appears in the fabric local location and decrease even the situation of broken hole; 2. certain adsorption function such as diatomite can adsorb metal ion and foreign organic matter that some are prone to cause negative effect, also can adsorbing fiber on kiering, the foreign material bleached, washed off the raising that favourable whiteness, hair are imitated along with washing; 3. diatomite etc. also is a builder, assists in removing impurity and dirt on fiber, the fabric.
Described surfactant mixture is the mixture of anion and non-ionic surface active agent; Anion surfactant such as neopelex, α～sodium olefin sulfonate are preferably α～sodium olefin sulfonate (α～sodium olefin sulfonate of GB/T 20200-2006 standard code); Non-ionic surface active agent is AEO and composition thereof, is preferably C
12(CH
2CHO)
5(CH
3CH
2CH
2O)
2Like α～sodium olefin sulfonate and C
12(CH
2CHO)
5(CH
3CH
2CH
2O)
2Deng being respectively typical anion surfactant and low alveolitoid non-ionic surface active agent; Both are used; Its surface-activity is higher than using separately, and effects such as their its infiltrations of performance, emulsification, dispersion, solubilising, washing can remove also stable dispersion to the natural impurity on the cotton fiber and other dirt on the fabric etc. in water-bath; Remove with washing effect, effect is floated in cotton knitting the boiling of assurance.C
12(CH
2CHO)
5(CH
3CH
2CH
2O)
2As typical polyethers; Certain froth breaking effect is also arranged; Make exploitation a formulation solid additive composition realize low bubble when using, favourable boiling floated processing and (boiled to float and add the man-hour foam and too much can cause phenomenons such as equipment plugging road, fabric winding, cause and boil the generation of floating defect; If the adding antifoaming agent not only increases cost but also the possibility that produces the silicone oil spot is arranged).
A kind of low-temperature scouring and bleaching assistant preparation of compositions method of the present invention comprises:
In the powdery blender; Add carrier (77～54.5) weight %, hydrogen peroxide solution activator (2.5～5.5) weight %, decomposing hydrogen dioxide solution catalyst (0～0.5) weight %, chelating agent (10～15) weight %, bleach boosters (5～15) weight % successively; Mix 45-60 minute to evenly, with surfactant (5～10) weight %, stirred then 15-30 minute again; Blowing gets the solid, powdery thing.
Through developing brand-new environment-friendly low-temperature scouring and bleaching assistant composition; Make up not only compliance with environmental protection requirements, but also the stable low temperature that effectively, is applicable to natural fabric (cotton is main) and BLENDED FABRIC dyeing and finishing processing thereof the system of scouringing and bleaching; And in energy-saving and cost-reducing, satisfy and guarantee pressing for of product quality, for ecological dyeing and finishing, cleaner production energy-saving and cost-reducing, the realization textiles are contributed.
Beneficial effect
(1) assistant composition of exploitation belongs to the environmental protection assistant composition, the material of not phosphorous and harmful environmental protection, no AOX problem;
(2) assistant composition of exploitation belongs to low bubble assistant composition, does not need to add in addition antifoaming agent in the processing;
(3) assistant composition of exploitation is a solid product, packing, convenient transportation;
(4) assistant composition of exploitation is a formulation auxiliary agent, and a kind of auxiliary agent substitutes auxiliary agent more than three kinds such as hydrogen peroxide bleaching stabilizer, chelating agent, brightening agent, refining agent in the processing, and is easy to process;
(5) assistant composition of application and development is with H
2O
2And caustic soda matches, and the cotton fabrics low-temperature blanching is achieved, and can under 75-80 ℃ of condition, carry out boiling, bleaching-bathing processing, and it boils and floats whiteness, the gross efficiency standard that effect reaches the high temperature alkali-oxygen one bath technology of traditional 98-100 ℃ even 130 ℃;
(6) application and development assistant composition, accomplish cotton fabrics boil float after, compare with traditional handicraft, can save vapour more than 30%, realize energy-saving and cost-reducing target;
(7) use exploitation assistant composition, use cost does not increase, and is saving cost aspect the joint vapour, so overall cost descends;
(8) use exploitation assistant composition, boil at low temperatures and float, the degree of injury that fiber is received is littler than conventional high-temperature technology, its loss of strength reduces more than 5%;
(9) use exploitation assistant composition, can save process time, mainly be to heat up and temperature fall time reduces, thereby practiced thrift process time, generally can make and shorten process time about 20%;
(10) reduced the possibility that cotton and cotton blended fabric (like spandex and cotton blending) produce the wrinkle seal, because low temperature significantly reduces than the possibility that high temperature produces.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
In the powdery blender; Add 100-200 purpose diatomite 70 weight %, tetraacetyl ethylene diamine TAED 3 weight %, manganese gluconate salt 0.5 weight %, ethylenediamine tetramethylene phosphatase 11 5 weight %, perborate 6 weight % successively; Mix 45 minutes to evenly, add α～sodium olefin sulfonate 2 weight %, C again
12(CH
2CHO)
5(CH
3CH
2CH
2O)
23.5 weight % stirred 15 minutes then, blowing is the solid, powdery product.
Embodiment 2
In the powdery blender; Add 100-200 purpose kaolin 60 weight %, tetraacetyl ethylene diamine TAED 5 weight %, tetrasodium ethylenediamine tetraacetate 15 weight %, percarbonate 10 weight % successively; Mix 45 minutes to evenly, add α～sodium olefin sulfonate 2 weight %, C again
12(CH
2CHO)
5(CH
3CH
2CH
2O)
28 weight % stirred 15 minutes then, and blowing is the solid, powdery product.
Claims (6)
1. low-temperature scouring and bleaching assistant composition; Comprise: percentage by weight tetraacetyl ethylene diamine TAED 2.5～5.5%, decomposing hydrogen dioxide solution catalyst 0～0.5%, bleach boosters 5～15%, chelating agent 10～15%, carrier 77～54.5%, surfactant 5～10%; Wherein, Carrier is 100-200 purpose diatomite or kaolin, and surfactant is the mixture of anion and non-ionic surface active agent; Anion surfactant is neopelex, α～sodium olefin sulfonate; Non-ionic surface active agent is AEO and composition thereof.
2. a kind of low-temperature scouring and bleaching assistant composition according to claim 1 is characterized in that: said decomposing hydrogen dioxide solution catalyst is the salt of manganese, zinc, aluminium cations and has the chelating agent that the catalytic metal CATION is had given stability constant.
3. a kind of low-temperature scouring and bleaching assistant composition according to claim 2 is characterized in that: the aluminium salt of the manganese salt of the manganese salt that said decomposing hydrogen dioxide solution catalyst is an ethylenediamine tetra-acetic acid, manganese gluconate salt, ethylenediamine tetraacetic (methylene phosphoric acid), the zinc salt of ethylenediamine tetraacetic (methylene phosphoric acid) or ethylenediamine tetraacetic (methylene phosphoric acid).
4. a kind of low-temperature scouring and bleaching assistant composition according to claim 1 is characterized in that: said bleach boosters is one or more in perborate, persulfate, the percarbonate.
5. a kind of low-temperature scouring and bleaching assistant composition according to claim 1 is characterized in that: described chelating agent is tetrasodium ethylenediamine tetraacetate, ethylenediamine tetramethylene phosphoric acid, gluconic acid sodium salt.
6. low-temperature scouring and bleaching assistant preparation of compositions method according to claim 1 comprises:
In the powdery blender; Add carrier 77～54.5%, tetraacetyl ethylene diamine TAED 2.5～5.5%, decomposing hydrogen dioxide solution catalyst 0～0.5%, chelating agent 10～15%, bleach boosters 5～15% successively, mix 45-60 minute, add surfactant 5～10% again to evenly; Above its composition by weight percentage; Stirred then 15-30 minute, blowing promptly gets; Wherein, carrier is 100-200 purpose diatomite or kaolin.
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Denomination of invention: The invention relates to a low temperature scouring and bleaching auxiliary composition and a preparation method thereof Effective date of registration: 20210525 Granted publication date: 20121031 Pledgee: Agricultural Bank of China Limited Ningbo Beilun branch Pledgor: NINGBO GUANG YUAN FABRIC Co.,Ltd. Registration number: Y2021330000446 |
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