CN101922110B - Low-temperature activation bleaching method by using water-soluble metal phthalocyanine - Google Patents
Low-temperature activation bleaching method by using water-soluble metal phthalocyanine Download PDFInfo
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- CN101922110B CN101922110B CN2010102805261A CN201010280526A CN101922110B CN 101922110 B CN101922110 B CN 101922110B CN 2010102805261 A CN2010102805261 A CN 2010102805261A CN 201010280526 A CN201010280526 A CN 201010280526A CN 101922110 B CN101922110 B CN 101922110B
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Abstract
The invention relates to a low-temperature activation bleaching method by using water-soluble metal phthalocyanine and belongs to a low-temperature activation bleaching method. The method comprises the following steps of: (1) mixing the water-soluble metal phthalocyanine, H2O2, a penetrating agent and a stabilizer to obtain bleaching working solution; (2) padding fabric in the bleaching working solution; and (3) performing cold piling or steaming on the padded fabric and washing. The method has the advantages of simplicity, low cost, high production efficiency, environmental protection, energy conservation and suitability for industrial application; and on the premise of achieving good bleaching effect, the bleaching temperature is reduced, the stacking time is shortened and fabric damage is reduced.
Description
Technical field
The invention belongs to the method field of low-temperature activated bleaching, particularly relate to a kind of method of using the low-temperature activated bleaching of water-soluble metal phthalocyanine.
Background technology
Hydrogen peroxide bleaching is an important process in the textiles pre-treatment, and the whiteness height of BLEACHED FABRIC, not yellowing, environmental pollution are little, therefore is widely used in the pre-treatment bleaching process of various fabrics.
Conventional hydrogen peroxide bleaching comprises: high-temperature bleaching and the bleaching of cold rolling heap.
1. the technological process of high-temperature bleaching is: hydrogen peroxide bleaching liquor → decatize → washing.
Bleaching liquid contains hydrogen peroxide (100%) 2～15g/L, regulates pH value to 10.5～11 with caustic soda, and adding stabilizing agent and wetting agent are an amount of, when room temperature, pad bleaching liquor, and 95～100 ℃ of decatize 45～60min wash out cloth then.
Shortcomings such as the shortcoming that high-temperature bleaching technology exists is that the process energy consumption is high, and fiber strength reduces, and processing back fabric feeling is coarse.
2. the technological process of conventional cold rolling heap bleaching is: hydrogen peroxide bleaching liquor → bank up → wash.
Bleaching liquid contains hydrogen peroxide (100%) 18-20g/L, and the alkali consumption is 50-60g/L, and adding stabilizing agent and wetting agent are an amount of, and the 24h that banks up washes out cloth.
The shortcoming of conventional cold rolling heap bleaching: technological temperature is low, the dense height of alkali, the infiltration difficulty, and the present cold-pad-batch preparation time, about 24h, production efficiency was lower mostly.
For temperature that reduces the hydrogen peroxide solution high-temperature bleaching or the time that shortens conventional cold rolling heap bleaching, can in the hydrogen peroxide bleaching working solution, add the hydrogen peroxide solution activator, promote the decomposition rate of hydrogen peroxide solution at cryogenic conditions.
At present the hydrogen peroxide solution activator system of research and development mainly comprises: assorted how structure compounds of alkanoyl compounds, amide groups compounds, oxidation and organo-manganese compound etc. are arranged.The product of industrialization mainly is (tetra-acetylated) ethylenediamine (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, but is not very ripe all the time in the application in the pre-treatment of textiles hydrogen peroxide bleaching.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of using the low-temperature activated bleaching of water-soluble metal phthalocyanine, and this method is simple, and cost is low, and production efficiency is high, and environmental protection and energy saving are suitable for industrialization and use; Reaching under the prerequisite of good bleaching effect, reducing bleaching temperature, shortening and bank up the time, reducing fabric damage.
The application of a kind of water-soluble metal phthalocyanine of the present invention in the textiles low-temperature activated bleaching.
The method of low-temperature activated bleaching comprises:
(1) preparation bleaching working solution
Water-soluble metal phthalocyanine consumption 0.01～1000 μ mol/L, H
2O
2Consumption 2～50g/L, bleeding agent consumption 1～5g/L, stabilizing agent dosage 0.1～10g/L, then with said material mix the working solution of pH 7～11, preferred pH9;
(2) pad
Textiles is put into above-mentioned bleaching working solution to be padded;
(3) textiles after will padding carries out cold dome or decatize, afterwards washing.
Water-soluble metal phthalocyanine consumption 0.5～50 μ mol/L in the said step (1).
Water-soluble metal phthalocyanine consumption in the said step (1) is preferably 1～20 μ mol/L.
Padding in the said step (2) is two to soak two and roll liquid carrying rate 50%～120%.
Textiles in the said step (2) is woven, knitted fabric or nonwoven textiles.
Cold batching process in the said step (3) is: 20～60 ℃ of the temperature of banking up, time 1～24h.
Decatize technology in the said step (3) is: 60～85 ℃ of steam temperatures, time 0.1～4h.
Washing in the said step (3) comprises hot water wash and cold wash.
The structure of the water-soluble metal phthalocyanine in the said step (1) is:
Said M is a kind of metal, is selected from a kind of among Mn (II)-(III)-(IV)-(V), Fe (II)-(III), Cu (I)-(II), Zn (I)-(II), the Co (I)-(II)-(III);
Said R
1～R
8Be selected from a kind of in hydrogen base, alkyl, amino, carboxyl, sulfonic group, hydroxyl, the pyridine radicals, R
1～R
8Can be identical or different.
In the activation cold bleaching working solution that the present invention adopted, can also comprise various auxiliary elements, like stabilizing agent and bleeding agent.The use of stabilizing agent mainly is the resolution ratio of control hydrogen peroxide solution, and it is evenly decomposed effectively, avoids fiber to suffer violent damage, thereby obtains good bleaching effect.Used stabilizing agent is generally the maleic acid acrylic copolymer, as: MA-AA.Adding bleeding agent among the present invention, is in order to strengthen bleaching liquid wetting to fabric, to help absorption and the diffusion of bleaching agent to fabric.Used bleeding agent is generally non-ionic surface active agent, like JFC.
Beneficial effect
The present invention uses the water-soluble metal phthalocyanine complex as bleach-activating, makes up hydrogen peroxide solution/activator bleach system, adopts cold dome or/and the processing method of decatize reaches the effect to textile bleaching; Compare with the conventional high-temperature hydrogen peroxide bleaching process, reaching under the prerequisite of good bleaching effect, bleaching temperature is reduced to below 85 ℃ from 100 ℃, working solution pH is controlled in 7 to 11 the scope preferred 9; Compare with conventional cold-pad-batch process, shortened cold dome and banked up the time, and reduced working solution pH, thereby 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
(1) preparation of bleaching working solution: 30%H
2O
2Consumption: 30g/L; Four carboxyl phthalocyanine cobalt: 1 μ mol/L; Penetrating agent JFC consumption: 2g/L; Stabilizing agent XFA consumption: 2g/L; Regulate working solution pH=7 with NaOH.
(2) pad step: the working solution of textile half-bleached shirting with above-mentioned (1) preparation soaked two at evenness calender two and roll, and liquid carrying rate is 95%.
(3) steaming step: 80 ℃ of steam temperatures, steaming time 1h.
(4) washing:, fully wash with cold water with the hot wash twice of the COTTON FABRIC after the above-mentioned decatize with 50 ℃-80 ℃.
Embodiment 2
(1) preparation of bleaching working solution: 30%H
2O
2Consumption: 30g/L; Four carboxyl phthalocyanine cobalt: 15 μ mol/L; Penetrating agent JFC consumption: 2g/L; Stabilizing agent XFA consumption: 1g/L; Regulate working solution pH=10 with NaOH.
(2) pad step: the working solution of textile half-bleached shirting with above-mentioned (1) preparation soaked two at evenness calender two and roll, and liquid carrying rate is 95%.
(3) steaming step: 80 ℃ of steam temperatures, steaming time 1h.
(4) washing:, fully wash with cold water with the hot wash twice of the COTTON FABRIC after the above-mentioned decatize with 50 ℃-80 ℃.
Embodiment 3
(1) preparation of bleaching working solution: 30%H
2O
2Consumption: 30g/L; Four carboxyl phthalocyanine cobalt: 15 μ mol/L; Penetrating agent JFC consumption: 2g/L; Stabilizing agent MA-AA consumption: 1g/L; Regulate working solution pH=9 with NaOH.
(2) pad step: the working solution of textile half-bleached shirting with above-mentioned (1) preparation soaked two at evenness calender two and roll, and liquid carrying rate is 95%.
(3) steaming step: 80 ℃ of steam temperatures, steaming time 1.5h.
(4) washing:, fully wash with cold water with the hot wash twice of the COTTON FABRIC after the above-mentioned decatize with 50 ℃-80 ℃.
Embodiment 4
(1) preparation of bleaching working solution: 30%H
2O
2Consumption: 30g/L; Four carboxyl phthalocyanine cobalt: 20 μ mol/L; Penetrating agent JFC consumption: 2g/L; Stabilizing agent MA-AA consumption: 0.2g/L; Regulate working solution pH=9 with NaOH.
(2) pad step: the working solution of textile half-bleached shirting with above-mentioned (1) preparation soaked two at evenness calender two and roll, and liquid carrying rate is 95%.
(3) cold rolling heap step: 40 ℃ of the temperature of banking up, time 6h banks up.
(4) washing:, fully wash with cold water with the hot wash twice of the COTTON FABRIC after the above-mentioned decatize with 50 ℃-80 ℃.
Implementation result of the present invention:
Processing fabric and each comparison sample of above-mentioned instance 1-4 are carried out whiteness and powerful contrast test analysis, and the result lists in table 1.
The whiteness test of fabric: adopt the U.S. moral tower color Datacolor of company 650 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, twill towards outside, longitude and latitude is respectively surveyed three times.
The brute force of fabric is measured: utilize the H5K-S universal testing machine that the tensile strength and the breaking ductility of composite membrane are tested.Adopt the cloth method to test according to GB.
Table 1 bleaching effect of the present invention
Claims (7)
1. method of using the low-temperature activated bleaching of water-soluble metal phthalocyanine comprises:
(1) bleaching working solution: water-soluble metal phthalocyanine consumption 0.01 ~ 1000 μ mol/L, H
2O
2Consumption 2 ~ 50g/L, bleeding agent consumption 1～5g/L, stabilizing agent dosage 0.1～10g/L, then with said material mix the bleaching working solution of pH 7 ~ 11; Wherein, the structure of water-soluble metal phthalocyanine is:
Said M is a kind of metal, is selected from a kind of in Mn (II)-(III)-(IV)-(V), Fe (II)-(III), Cu (I)-(II), Zn (I)-(II), Co (I)-(II)-(III);
Said R1 ~ R8 is selected from a kind of in hydrogen base, alkyl, amino, carboxyl, sulfonic group, hydroxyl, the pyridine radicals, and R1 ~ R8 is identical or different;
(2) textiles being put into above-mentioned bleaching working solution pads; Wherein, textiles is a pure cotton fabric;
(3) textiles after will padding carries out cold dome or decatize, afterwards washing.
2. a kind of method of using the low-temperature activated bleaching of water-soluble metal phthalocyanine according to claim 1 is characterized in that: water-soluble metal phthalocyanine consumption 1 ~ 20 μ mol/L in the said step (1).
3. a kind of method of using the low-temperature activated bleaching of water-soluble metal phthalocyanine according to claim 1 is characterized in that: the pH of the bleaching working solution in the said step (1) is 9.
4. a kind of method of using the low-temperature activated bleaching of water-soluble metal phthalocyanine according to claim 1 is characterized in that: padding in the said step (2) is two to soak two and roll pick-up rate 50% ~ 120%.
5. a kind of method of using the low-temperature activated bleaching of water-soluble metal phthalocyanine according to claim 1 is characterized in that: the cold batching process in the said step (3) is 20 ~ 60 ℃ of the temperature of banking up, time 1 ~ 24h.
6. a kind of method of using the low-temperature activated bleaching of water-soluble metal phthalocyanine according to claim 1 is characterized in that: the decatize technology in the said step (3) is 60 ~ 85 ℃ of steam temperatures, time 0.1 ~ 4h.
7. a kind of method of using the low-temperature activated bleaching of water-soluble metal phthalocyanine according to claim 1 is characterized in that: the washing in the said step (3) is hot water wash and cold wash.
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| CN103374848B (en) * | 2012-04-28 | 2016-03-02 | 上海韬鸿化工科技有限公司 | The environmental protection method for bleaching of a kind of environmental protection bleaching liquid and natural fabric |
| CN102677467B (en) * | 2012-05-07 | 2015-05-13 | 东华大学 | Method for pure-cotton woven fabric enzyme-imitating metal salen cooled reactor pretreatment |
| CN103147267B (en) * | 2013-03-06 | 2015-07-15 | 浙江传化股份有限公司 | Low-temperature scouring and bleaching agent and preparation method thereof |
| EP3099774B1 (en) * | 2014-01-31 | 2018-02-21 | Basf Se | Use of ortho-substituted ethoxylated al or zn-phthalocyanine compounds as photobleach agents in laundry detergents |
| CN104894898A (en) * | 2015-06-29 | 2015-09-09 | 东华大学 | Cold pad-batch bleaching and dyeing method for cotton knitted fabrics |
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| US6830591B1 (en) * | 2000-02-15 | 2004-12-14 | The Procter & Gamble Company | Method for the use of hydrophobic bleaching systems in textile preparation |
| ATE368764T1 (en) * | 2000-02-15 | 2007-08-15 | Procter & Gamble | ONE-STEP PROCESS FOR PRODUCING TEXTILES |
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