CN102677449A - Low-temperature activated bleaching agent as well as preparation method and application thereof - Google Patents
Low-temperature activated bleaching agent as well as preparation method and application thereof Download PDFInfo
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- CN102677449A CN102677449A CN201210195006XA CN201210195006A CN102677449A CN 102677449 A CN102677449 A CN 102677449A CN 201210195006X A CN201210195006X A CN 201210195006XA CN 201210195006 A CN201210195006 A CN 201210195006A CN 102677449 A CN102677449 A CN 102677449A
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Abstract
The invention relates to a low-temperature activated bleaching agent as well as a preparation method and an application thereof. The low-temperature activated bleaching agent is prepared from the following components by weight percentage: 0.1-1% of acetyl acetone metal complex, 1-10% of organic solvent, 10-20% of fatty alcohol-polyoxyethylene ether, 0.2-1.0% of acetic acid and the balance of water. The preparation method comprises the steps of: uniformly mixing the fatty alcohol-polyoxyethylene ether, the organic solvent and water; then slowly adding acetyl acetone metal complex, adding acetic acid under mechanical agitation, adjusting pH to 5-6, and then continuing to agitate for 2-3 hours at room temperature until a transparent liquid is generated. The invention also provides a batch-type bleaching method of the low-temperature activated bleaching agent for baffeta. The method is simple, low in cost, high in production efficiency, environment-friendly and energy-saving, and suitable for industrial use; and the bleaching temperature is reduced under the precondition of achieving an excellent bleaching effect, and fabric damage is also reduced.
Description
Technical field
The invention belongs to the bleaching agent field, particularly a kind of low-temperature activated bleaching agent.
Background technology
Present grand strategy from China's economic development; Low-carbon economy as the important way that changes economic development just through whole textile industry; It is with low consumption, low pollute and the theory of low emission is basis, is core with the innovation of energy savings technology and minimizing draining technology.The gas discharging of textiles in the dyeing and finishing process, water resources consumption, energy resource consumption etc. are that industry is finally to the fundamental basis of product ambient influnence Comprehensive Assessment.The restriction of some pressures or the rules of voluntary or market has been arranged at present in the world, for example required information such as product mark carbon footprint.Therefore, be exactly " decrement rule " for one of basic principle of whole dyeing and finishing industry sustainable development, be exactly the product function that requires to obtain maximum with minimum resource consumption.And for current dyeing and finishing enterprise, the direct benefit of carrying out low-carbon dyeing and finishing is not only the environmental value that has improved product, and has reduced energy consumption, material consumption and discharging, has just reduced production cost.Therefore spell out in " the textile industry 12 development in science and technology outlines " of promulgation in this year; Dyeing and finishing industry will be emphasis research and development and the popularization of high efficiency shortened process pre-treatment new technologies such as Cotton Fabric Low Temperature Bleaching as a few years from now on; By 2015; Pre-treatment new technologies such as Cotton Fabric Low Temperature Bleaching will be accomplished the industrialization research and development, and in industry, promote.
Usually the hydrogen peroxide bleaching method is adopted in the bleaching pre-treatment of cotton fiber, and it has, and bleaching effect is better, retention of whiteness good, pollute less, advantage such as etching apparatus not.The basic mechanism of hydrogen peroxide bleaching is: H
2O
2Can generate the active ingredient HOO of bleaching after the decomposition
-, decomposition formula is: H
2O
2→ HOO
-+ H
+According to the chemical reaction equilibrium principle, add a certain amount of caustic soda in the bleaching working solution, in the ability and H+, promote the generation of HOO-.Simultaneously, usually need add hydrogen peroxide stabilizer in traditional hydrogen peroxide solution method for bleaching controls the hydrogen peroxide solution that causes owing to the heavy metal ion catalytic action and ineffectually is decomposed.So-called cold bleaching pre-treatment is meant that the special oxygen of employing floats activator in the pre-treating method of routine; Improve effective resolution ratio of hydrogen peroxide solution; Thereby improve the utilization rate of hydrogen peroxide solution; And bleaching temperature is reduced to about 70 ℃, when not influencing fabric whiteness, problems such as the damage of reduction fabric fibre and weightlessness.
The hydrogen peroxide solution activator system of research and development mainly comprises at present: alkanoyl compounds, amide groups compounds, the assorted naphthalene structure class of oxidation and organo-manganese compound etc. are arranged.The product of industrialization mainly is tetra acetyl ethylene diamine (TAED) and pelargonyl group benzene sulfonic acid sodium salt (NOBS) on the market; This two compounds has obtained using widely in American-European Betengent product, is not very ripe all the time but drift in the application in the pre-treatment at the textiles hydrogen peroxide solution.
Summary of the invention
Technical problem to be solved by this invention is that the present invention at first provides a kind of low-temperature activated bleaching agent; The present invention provides a kind of preparation method of low-temperature activated bleaching agent in addition; The present invention also provides low-temperature activated bleaching agent of the present invention to be used for the batch (-type) method for bleaching of COTTON FABRIC body.This method is simple, cost is low, production efficiency is high, environmental protection and energy saving, is suitable for industrialization and uses, and is reaching under the prerequisite of good bleaching effect, reduces bleaching temperature, reduces the fabric loss.Be specially:
The present invention provides a kind of low-temperature activated bleaching agent, and is composed of the following components according to the percentage by weight said composition:
The structure of described cetylacetone metallic complex is:
Wherein M represents Mn (II)-(III), Co (II)-(III) or Fe (II)-(III).
Described organic solvent is diethylene glycol butyl ether, DPG monobutyl ether or diethylene glycol.
The preparation method of low-temperature activated bleaching agent of the present invention; Comprise: AEO, organic solvent and water are mixed; Add cetylacetone metallic complex then, under mechanical agitation, add acetic acid, adjusting pH is 5-6; Continue under the room temperature then to stir 2-3 hour, promptly get the low-temperature activated bleaching agent up to generating transparent liquid.
Low-temperature activated bleaching agent of the present invention is used for the batch (-type) method for bleaching of COTTON FABRIC, and concrete steps comprise:
(1) according to following component and concentration preparation bleaching liquid:
(2) with put into the bleaching liquid that step (1) obtain of COTTON FABRIC, be warming up to 70-85 ℃, bleaching 45-80min, cooling washing then according to bath raio 1:10.
The mass fraction of hydrogen peroxide solution is 35% in the said step (1).
The COTTON FABRIC of said step (2) is knitted fabric or woven.
Earlier with water temperature 50-60 ℃ hot water wash, the cold wash of temperature as room temperature used in the back during said step (2) cooling washing.
Beneficial effect
1) to be used for the batch (-type) method for bleaching of COTTON FABRIC simple in low-temperature activated bleaching agent of the present invention, and cost is low, and production efficiency is high, and environmental protection and energy saving are suitable for industrialization and use.
2) a kind of low-temperature activated bleaching agent of the present invention; Reach the effect of textile bleaching; Compare with conventional high-temperature hydrogen peroxide bleaching method, reaching under the prerequisite of good bleaching effect, bleaching temperature is reduced to below 80 ℃ from 100 ℃; Gradually lack fabric damage, to the ecological, environmental protective of dyeing industry, energy-saving and cost-reducingly have a remarkable meaning.
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
20g isomerous tridecanol AEO (8EO) and 5g diethylene glycol butyl ether and 74g water are mixed; Slowly add 1g manganese acetylacetonate (II) metal complex then; Under mechanical agitation, add acetic acid; Adjusting pH is 5-6, continues under the room temperature then to stir 2-3 hour up to generating transparent liquid, promptly gets the low-temperature activated bleaching agent.
Embodiment 2
20g isomerous tridecanol AEO (9EO) and 5g DPG monobutyl ether and 74g water are mixed; Slowly add 1g acetylacetone cobalt (III) metal complex then; Under mechanical agitation, add acetic acid; Adjusting pH is 5-6, continues under the room temperature then to stir 2-3 hour up to generating transparent liquid, promptly gets the low-temperature activated bleaching agent.
Embodiment 3
20g isomerous tridecanol AEO (9EO) and 5g diethylene glycol and 74g water are mixed; Slowly add 1g manganese acetylacetonate (III) metal complex then; Under mechanical agitation, add acetic acid; Adjusting pH is 5-6, continues under the room temperature then to stir 2-3 hour up to generating transparent liquid, promptly gets the low-temperature activated bleaching agent.
Embodiment bleaches application process: earlier grey cloth being joined overflow dyes machine, then bleaching liquid is added, and slowly is warming up to 75 ℃ with 1 ℃/minute speed and carries out oxygen and float, and is incubated 45 minutes; The draining of lowering the temperature then, 50 ℃ of washings then, acetic acid neutralization; 50 ℃ of hot water wash, cold water (room temperature) is washed, oven dry.
The whiteness test of fabric: adopt the U.S. moral tower color DATACOLOR of company 750 type color measurement and color match appearance that fabric whiteness is tested, according to the assessment method of GB 8425-87 textiles instrument whiteness, folding 4 layers of sample, difference is respectively surveyed 4 times.The strength test of fabric: utilize YG (B) 0260D-500 type ultimate strength appearance that fabric is carried out the bursting strength test.
Embodiment fabric: cotton 28tex (21
s) TOWEL
Table 1 embodiment bleaching liquid is formed and the fabric property contrast of bleaching back
Annotate: the bursting strength of grey cloth is 473.8N
Claims (8)
1. low-temperature activated bleaching agent, composed of the following components according to the percentage by weight said composition:
2. a kind of low-temperature activated bleaching agent according to claim 1, it is characterized in that: the structure of described cetylacetone metallic complex is:
Wherein M represents Mn (II)-(III), Co (II)-(III) or Fe (II)-(III).
3. a kind of low-temperature activated bleaching agent according to claim 1 is characterized in that: described organic solvent is diethylene glycol butyl ether, DPG monobutyl ether or diethylene glycol.
4. the preparation method of a kind of low-temperature activated bleaching agent according to claim 1; Comprise: AEO, organic solvent and water are mixed; Add cetylacetone metallic complex then, under mechanical agitation, add acetic acid, adjusting pH is 5-6; Continue under the room temperature then to stir 2-3 hour, promptly get the low-temperature activated bleaching agent up to generating transparent liquid.
5. the application of a kind of low-temperature activated bleaching agent according to claim 1 is characterized in that: be used for the batch (-type) bleaching of COTTON FABRIC, concrete steps comprise:
(1) according to following component and concentration preparation bleaching liquid:
(2) with put into the bleaching liquid that step (1) obtain of COTTON FABRIC, be warming up to 70-85 ℃, bleaching 45-80min, cooling washing then according to bath raio 1:10.
6. the application of a kind of low-temperature activated bleaching agent according to claim 5 is characterized in that: the mass fraction of hydrogen peroxide solution is 35% in the said step (1).
7. the application of a kind of low-temperature activated bleaching agent according to claim 5 is characterized in that: the COTTON FABRIC of said step (2) is knitted fabric or woven.
8. the application of a kind of low-temperature activated bleaching agent according to claim 5 is characterized in that: during said step (2) cooling washing, with water temperature 50-60 ℃ hot water wash, the cold wash of temperature as room temperature used in the back earlier.
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| CN201210195006.XA CN102677449B (en) | 2012-06-13 | 2012-06-13 | Low-temperature activated bleaching agent as well as preparation method and application thereof |
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| CN201210195006.XA CN102677449B (en) | 2012-06-13 | 2012-06-13 | Low-temperature activated bleaching agent as well as preparation method and application thereof |
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| CN102677449B CN102677449B (en) | 2014-02-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032643A (en) * | 2015-03-13 | 2016-10-19 | 广东德美精细化工股份有限公司 | Scouring and bleaching process and scouring and bleaching liquid of pure cotton cheese |
| CN106032642A (en) * | 2015-03-13 | 2016-10-19 | 广东德美精细化工股份有限公司 | Flat continuous low-temperature pad batch scouring and bleaching process, scouring and bleaching liquid and application thereof |
| CN108729205A (en) * | 2017-04-15 | 2018-11-02 | 武鸣县南方制绳厂 | A kind of bleaching agent and preparation method thereof for sisal hemp |
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| EP0913515A1 (en) * | 1997-10-31 | 1999-05-06 | The Procter & Gamble Company | Process of bleaching fabrics |
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| CN101033182A (en) * | 2007-04-20 | 2007-09-12 | 北京化工大学 | Method of preparing palladium acetylacetonate |
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2012
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Patent Citations (4)
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| EP0913515A1 (en) * | 1997-10-31 | 1999-05-06 | The Procter & Gamble Company | Process of bleaching fabrics |
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| CN101033182A (en) * | 2007-04-20 | 2007-09-12 | 北京化工大学 | Method of preparing palladium acetylacetonate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032643A (en) * | 2015-03-13 | 2016-10-19 | 广东德美精细化工股份有限公司 | Scouring and bleaching process and scouring and bleaching liquid of pure cotton cheese |
| CN106032642A (en) * | 2015-03-13 | 2016-10-19 | 广东德美精细化工股份有限公司 | Flat continuous low-temperature pad batch scouring and bleaching process, scouring and bleaching liquid and application thereof |
| CN108729205A (en) * | 2017-04-15 | 2018-11-02 | 武鸣县南方制绳厂 | A kind of bleaching agent and preparation method thereof for sisal hemp |
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|---|---|
| CN102677449B (en) | 2014-02-26 |
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