CN103276583A - Cotton fabric scouring and bleaching processes by using heavy metal ions and polyphosphates as catalyst - Google Patents
Cotton fabric scouring and bleaching processes by using heavy metal ions and polyphosphates as catalyst Download PDFInfo
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- CN103276583A CN103276583A CN2013101569481A CN201310156948A CN103276583A CN 103276583 A CN103276583 A CN 103276583A CN 2013101569481 A CN2013101569481 A CN 2013101569481A CN 201310156948 A CN201310156948 A CN 201310156948A CN 103276583 A CN103276583 A CN 103276583A
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Abstract
The invention provides a catalyst for cotton fabric scouring and bleaching processes and the scouring and bleaching processes, and particularly provides cotton fabric scouring and bleaching processes by using heavy metal ions and polyphosphates as a catalyst. The catalyst for H2O2 low-temperature scouring and bleaching is prepared by mixing Cu<2+> and a chelating agent (polyphosphate compounds) in a certain ratio, at a low temperature, a metal complex formed by Cu<2+> and the polyphosphate compounds can effectively promote decomposition of H2O2, so that the whiteness can be substantially improved, and further the capillary effect can also be considerably improved. The complex can be used as the catalyst and is used for the cotton fabric low-temperature scouring and bleaching processes, and can exert application effects that low-temperature scouring and bleaching processes by using activators and traditional high-temperature processes have. At the same time, the catalyst has the characteristics of simple preparation, stable products, efficient performance and the like.
Description
Technical field
The present invention is a kind of for COTTON FABRIC the scouring and bleaching catalyst of technology and the technology of scouringing and bleaching, and a kind of specifically is the COTTON FABRIC of the catalyst technology of scouringing and bleaching with heavy metal ion and Quadrafos.
Background technology
Hydrogen peroxide (H
2O
2) in the process of scouringing and bleaching, there is the reaction of numerous complicated, bleaching principle does not have clear and definite final conclusion so far, and generally acknowledging at present has two kinds of theories can explain the process of hydrogen peroxide bleaching, and a kind of theory is thought in alkaline working solution, H
2O
2With OH
-Can generate hydrogen peroxide anion (HOO
-), HOO
-Having stronger oxidation-reduction potential, is the main active substances of bleaching, and another theory is exactly free-radical theory, hydrogen peroxide generates HO and HOO free radical in alkaline working solution, free radical has very strong activity, can effectively decompose pigment, plays the effect of bleaching.
Contents of many kinds of heavy metal ion has very strong catalytic action to hydrogen peroxide, discover the nineties in 20th century, the catalytic action to hydrogen peroxide under different pH values, different temperature of different heavy metal ion has evident difference, at pH=11.0, under 40～80 ℃ of conditions of temperature, heavy metal ion to the catalytic action of reaction is in proper order: Cu
2+Co
2+, Ag
+Mn
2+Ni
2+, Pb
2+
In traditional high temperature is scouringed and bleaching process, in order to prevent that heavy metal ion to the transition catalysis of hydrogen peroxide, causing fabric damage, in prescription, to add chelating agent or hydrogen peroxide stabilizer, so that heavy metal ion is shielded
[3]Along with the development of low-temperature activation technology, some contained the compound of heavy metal ion, for example Fe in recent years
3+, Mn
3+, Mn
4+Special complex compound be used as catalyst and be used for the COTTON FABRIC hydrogen peroxide low temperature technology of scouringing and bleaching, and carried out multinomial research, obtained positive utilization.But there are synthetic big, the defectives such as output capacity is low, product stability difference of difficulty in such catalyst.
The present invention is intended to use heavy metal ion commonly used and polycarboxylic acid salt, Quadrafos compounds as the catalyst of hydroperoxidation, be used for the scouring and bleaching feasibility of technology of cotton knitting low temperature, by the screening to heavy metal ion and polycarboxylic acid salt, Quadrafos compounds, prepare effective catalyst, and develop its technique for applying that low temperature is scouringed and bleaching on COTTON FABRIC.
Summary of the invention
First purpose of the present invention is: propose a kind of with heavy metal Cu
2+Make with the Quadrafos compounds and can be used for the catalyst that COTTON FABRIC hydrogen peroxide low temperature is scouringed and bleaching.
A further object of the present invention is to propose a kind of low temperature of using the COTTON FABRIC of above-mentioned catalyst processing technology of scouringing and bleaching.
In order to realize described first purpose, the present invention proposes a kind of preparation of catalysts method:
The catalyst A prescription
CuSO
45H
2O 0.39 gram～1.56 grams
Chelating agent 15.00 grams～60.00 grams
High dense scouring agent 7.50 grams～30.00 grams
NaOH 0.12 gram～0.50 gram
Add deionized water to 100 gram.
Catalyst A possesses the multi-functional of scouring agent and catalyst, does not need to add in addition scouring agent during use,
Directly add caustic soda and hydrogen peroxide gets final product, the consumption of catalyst A: 2.0g/L, 80 ℃ of application.
Perhaps catalyst B:
CuSO
45H
2O 0.78 gram～1.87 grams
Chelating agent 30.00 grams～72.00 grams
NaOH 8.0 grams～20.00 grams
Add deionized water to 100 gram.
Catalyst B need add scouring agent, the consumption of catalyst B: 1.0g/L, 80 ℃ of application when using in addition.
Wherein, chelating agent is the Quadrafos compounds.
High dense scouring agent (nonionic alkyl polyoxy ethers surfactant), activator (for amino nitriles) (above-mentioned auxiliary agent is Guangdong Demei Fine Chemical Co., Ltd. and produces), hydrogen peroxide (AR, content 30%), caustic soda (AR), soda ash (AR), glauber salt (AR) (above-mentioned auxiliary agent is Guangdong Xilong Chemical Co., Ltd and produces).
In order to realize second purpose of the present invention, the present invention proposes a kind of technology of scouringing and bleaching of using above-mentioned catalyst:
Applications catalyst A uses prescription
Catalyst A 0.2g/L～5.0g/L
NaOH 0.5g/L～5.0g/L
30%H
2O
2 3.0g/L～20.0g/L
Bath raio 1:10,2 ℃/min are warmed up to 80 ℃, insulation 45min, and discharge opeing, 80 ℃ of wash waters 10 minutes, cold wash, dehydration is dried.
Catalyst B is used prescription
High dense scouring agent 0.1g/L～1.0g/L
Catalyst B 0.1g/L～2.5g/L
NaOH 0.5g/L～5.0g/L
30%H
2O
2 3.0g/L～20.0g/L
Bath raio 1:10,2 ℃/min are warmed up to 80 ℃, insulation 45min, and discharge opeing, 80 ℃ of wash waters 10 minutes, cold wash, dehydration is dried.
The present invention is made into the scouring and bleaching catalyst of usefulness of hydrogen peroxide low temperature according to a certain percentage with Cu2+ and chelating agent (Quadrafos compounds), under the condition of low temperature, the metal complex that Cu2+ and Quadrafos compounds form can effectively promote the decomposition of hydrogen peroxide under cryogenic conditions, significantly promote whiteness, in addition to the capillary effect effect that also has a considerable improvement.This complex compound can be used as catalyst and is used for the cotton knitting low temperature technology of scouringing and bleaching and can reaches that the low temperature that must use activator is scouringed and bleaching or the effect of conventional high-temperature technology.Have characteristics such as preparation is simple, product is stable, performance is efficient simultaneously.
The specific embodiment
Embodiment 1,
Catalyst preparation:
Catalyst A:
CuSO
45H
2O 0.78 gram
Chelating agent 30.00 grams
High dense scouring agent DM-1361 15.00 grams
NaOH 0.25 gram
Add deionized water to 100 gram.
Fabric: 18.3tex combed cotton double knit grey cloth (grammes per square metre 180g/m
2, good name Fabritex S.r.l. in Guangzhou weaves)
The technology of scouringing and bleaching:
Catalyst A 2.0g/L
NaOH 2.0g/L
30%H
2O
2 5.0-7.0g/L
Bath raio 1:10,2 ℃/min are warmed up to 80 ℃, insulation 45min, and discharge opeing, 80 ℃ of wash waters 10 minutes,
Cold wash, dehydration is dried.
Embodiment 2,
Catalyst preparation:
Catalyst B:
CuSO
45H
2O 1.56 grams
Chelating agent 60.00 grams
NaOH 16.00 grams
Add deionized water to 100 gram.
Fabric: 18.3tex combed cotton double knit grey cloth (grammes per square metre 180g/m
2, good name Fabritex S.r.l. in Guangzhou weaves)
The technology of scouringing and bleaching:
High dense scouring agent 0.3g/L
Catalyst B 1.0g/L
NaOH 2.0g/L
30%H
2O
2 5.0-7.0g/L
Bath raio 1:10,2 ℃/min are warmed up to 80 ℃, insulation 45min, and discharge opeing, 80 ℃ of wash waters 10 minutes, cold wash, dehydration is dried.
Comparing embodiment and effect:
Below by to by the contrast experiment that the present invention and high temperature are scouringed and bleaching, activator is scouringed and bleaching technology, and the effect through dyeing, after soaping, we can be to the present invention by further understanding:
A〉the high temperature technology of scouringing and bleaching
High dense scouring agent 0.3g/L
Hydrogen peroxide stabilizer DM-1404 1.0g/L
NaOH 2.0g/L
30%H
2O
2 5.0g/L
Bath raio 1:10,2 ℃/min are warmed up to 98 ℃, and insulation 45min cools to 80 ℃, discharge opeing, and 90 ℃ of wash water 10min, cold wash, dehydration is dried.
B〉80 ℃ of technologies of scouringing and bleaching
High dense scouring agent 0.3g/L
Activator 1.0g/L
NaOH 2.0g/L
30%H
2O
2 5.0-7.0g/L
* activator is amino nitriles, and it act as and HOO
-Anion generates redox
The position is higher, and the Peracetic acid that bleaching power is stronger reaches the effect of cold bleaching.
Bath raio 1:10,2 ℃/min are warmed up to 80 ℃, insulation 45min, and discharge opeing, 80 ℃ of wash waters 10 minutes, cold wash, dehydration is dried.
The technological effect of scouringing and bleaching contrast:
Table 1, the effect of scouringing and bleaching contrast
Dyeing
Reactive Turquoise Blue KN-G (or brilliant blue KN-R) 2.0%(O.W.F)
Na
2SO
4 50.0g/L
Na
2CO
3 20.0g/L
Bath raio 1:10,2 ℃/min are warmed up to 60 ℃, insulation 60min, and cold wash, soap (DM-1572:
1.0g/L, 95 ℃ * 20min), cold water is cleaned, dehydration, oven dry.
The Color contrast:
Table 2, dye level (K/S), aberration (△ E) and the contrast of cloth cover level-dyeing property
1.STD be the standard sample in the color difference measurement
Table 3, soaping fastness contrast
By the data analysis of table 1, table 2, table 3 as can be known: catalyst A, B are used for cotton knitting 80 ℃ of technologies of scouringing and bleaching, and can reach the effect of activator and conventional high-temperature technology.
Claims (4)
1. one kind is used for the catalyst that COTTON FABRIC hydrogen peroxide low temperature is scouringed and bleaching with what heavy metal ion and Quadrafos compounds were made, it is characterized in that described catalyst A prescription:
CuSO
45H
2O 0.39 gram～1.56 grams
Chelating agent 15.00 grams～60.00 grams
High dense scouring agent 7.50 grams～30.00 grams
NaOH 0.12 gram～0.50 gram
Add deionized water to 100 gram;
Chelating agent is the Quadrafos compounds, and high dense scouring agent is nonionic alkyl polyoxy ethers surfactant.
2. an application rights requires the low temperature of the COTTON FABRIC of the 1 described catalyst processing technology of scouringing and bleaching, and it is characterized in that:
Catalyst A 0.2 g/L～5.0 g/L
NaOH 0.5 g/L～5.0 g/L
30%H
2O
2 3.0 g/L～20.0 g/L
Bath raio 1:10,2 ℃/min are warmed up to 80 ℃, insulation 45min, and discharge opeing, 80 ℃ of wash waters 10 minutes, cold wash, dehydration is dried.
3. one kind is used for the catalyst that COTTON FABRIC hydrogen peroxide low temperature is scouringed and bleaching with what heavy metal ion and Quadrafos compounds were made, it is characterized in that described catalyst B prescription:
CuSO
45H
2O 0.78 gram～1.87 grams
Chelating agent 30.00 grams～72.00 grams
NaOH 8.0 grams～20.00 grams
Add deionized water to 100 gram;
Chelating agent is the Quadrafos compounds.
4. an application rights requires the low temperature of the COTTON FABRIC of the 3 described catalyst processing technology of scouringing and bleaching, and it is characterized in that:
High dense scouring agent 0.1 g/L～1.0 g/L
Catalyst B 0.1 g/L～2.5 g/L
NaOH 0.5 g/L～5.0 g/L
30%H
2O
2 3.0 g/L～20.0 g/L
Bath raio 1:10,2 ℃/min are warmed up to 80 ℃, insulation 45min, and discharge opeing, 80 ℃ of wash waters 10 minutes, cold wash, dehydration is dried;
High dense scouring agent is nonionic alkyl polyoxy ethers surfactant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310156948.1A CN103276583B (en) | 2013-04-28 | 2013-04-28 | Cotton fabric scouring and bleaching processes by using heavy metal ions and polyphosphates as catalyst |
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|---|---|---|---|
| CN201310156948.1A CN103276583B (en) | 2013-04-28 | 2013-04-28 | Cotton fabric scouring and bleaching processes by using heavy metal ions and polyphosphates as catalyst |
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| CN103276583B CN103276583B (en) | 2015-04-29 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643564A (en) * | 2013-11-30 | 2014-03-19 | 常熟市华宇针织印染有限公司 | Dyeing and finishing technology for wool and recycled polyester blended fabric |
| CN104358101A (en) * | 2014-10-27 | 2015-02-18 | 广东德美精细化工股份有限公司 | High-temperature low-alkaline neutralization-free rapid scouring and bleaching method for cotton fabrics |
| CN107022894A (en) * | 2017-03-22 | 2017-08-08 | 东华大学 | A kind of bafta bleaching pre-processing process |
| CN107142711A (en) * | 2017-06-21 | 2017-09-08 | 清远市金沣顺助剂有限公司 | A kind of hydrogen peroxide cold bleaching catalyst and its preparation method and application |
| CN108642854A (en) * | 2018-04-22 | 2018-10-12 | 孙祎 | A kind of pure cotton fabric low temperature oxygen bleaching activator |
| CN112522946A (en) * | 2020-10-22 | 2021-03-19 | 湖南工程学院 | Low-temperature scouring and bleaching agent and preparation method and application thereof |
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| CN101255384A (en) * | 2008-04-07 | 2008-09-03 | 广州立白企业集团有限公司 | Detergent composition contaiing low-temperature bleaching catalytic system |
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| CN101255384A (en) * | 2008-04-07 | 2008-09-03 | 广州立白企业集团有限公司 | Detergent composition contaiing low-temperature bleaching catalytic system |
| CN101487184A (en) * | 2009-02-17 | 2009-07-22 | 宁波广源纺织品有限公司 | Low-temperature scouring and bleaching adjuvant composition and method for producing the same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643564A (en) * | 2013-11-30 | 2014-03-19 | 常熟市华宇针织印染有限公司 | Dyeing and finishing technology for wool and recycled polyester blended fabric |
| CN104358101A (en) * | 2014-10-27 | 2015-02-18 | 广东德美精细化工股份有限公司 | High-temperature low-alkaline neutralization-free rapid scouring and bleaching method for cotton fabrics |
| CN107022894A (en) * | 2017-03-22 | 2017-08-08 | 东华大学 | A kind of bafta bleaching pre-processing process |
| CN107142711A (en) * | 2017-06-21 | 2017-09-08 | 清远市金沣顺助剂有限公司 | A kind of hydrogen peroxide cold bleaching catalyst and its preparation method and application |
| CN108642854A (en) * | 2018-04-22 | 2018-10-12 | 孙祎 | A kind of pure cotton fabric low temperature oxygen bleaching activator |
| CN112522946A (en) * | 2020-10-22 | 2021-03-19 | 湖南工程学院 | Low-temperature scouring and bleaching agent and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN103276583B (en) | 2015-04-29 |
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Address after: 528305 Shunde Ronggui District, Foshan City, Guangdong Province Co-patentee after: Donghua University Patentee after: Guangdong Demei fine chemical group Limited by Share Ltd Address before: 528305 Shunde Ronggui District, Foshan City, Guangdong Province Co-patentee before: Donghua University Patentee before: Guangdong Demei Fine Chemical Co., Ltd. |