CN105178061A - Technological method for dyeing wool tops through plant indigo dye - Google Patents
Technological method for dyeing wool tops through plant indigo dye Download PDFInfo
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Abstract
The invention discloses an extraction technology of extracting plant indigo from baphicacanthus cusia bremek leaves and a dyeing technology of top dyeing of wool fiber tops through the plant indigo. The technology comprises the steps that collected baphicacanthus cusia bremek leaves are cleaned thoroughly, impurities are removed, after natural airing or drying at low temperature is conducted, the baphicacanthus cusia bremek leaves are smashed in a pulverizer, and baphicacanthus cusia bremek leaf plant powder dregs are obtained; a mixed solution of ethyl alcohol and water is poured into the baphicacanthus cusia bremek leaf plant powder dregs, and a plant indigo extracting solution is obtained through ultrasonic treatment; high-speed centrifugation is conducted on the extracting solution, vacuum concentration and drying are conducted after the impurities are removed, and plant indigo powder is obtained; the plant indigo powder is dissolved in soft water, caustic soda and sodium hydrosulfite are sequentially added, the mixture is stirred evenly and added into a top dyeing dye vat, and wool tops to be dyed are completely immersed; the temperature rises to start dyeing, and after heat preservation is conducted for a certain period, the wool tops are taken out of dye liquor to be dewatered; the wool tops are moved into an air blower rapidly, and oxidation is conducted on the wool tops through air which flows at a high speed till the wool tops turn blue from yellow green; the wool tops are put back into the dye vat, soaping is conducted, washing is conducted through clear water after soaping, drying is conducted, and the the wool tops dyed through the plant indigo are obtained.
Description
Technical field
Patent of the present invention belongs to the technical field of wool fibre dyeing, particularly adopts the wool fibre bar dyeing technique that vegetable indigo carries out.
Background technology
For many years, wool industry uses acid mordant dye always.The harm of acid mordant dye comprises: the hexavalent chromium in dyeing waste-water is to the pollution of environment; Next is colored chromium ion fiber also existing and can extract, and has serious harm to human body; 3rd be dyeing after the waste and old material Litter that prevents to the pollution of environment.As time woolen dyed, due to hexavalent chromium, must trivalent be reduced to, could with dyestuff complexing.In oxidation-reduction process, wool is subject to major injury, and consequently wool fibre brute force declines, color and luster yellowing, spinnability reduces greatly, and yarn qualities declines, and causes further and weaves end breakage rate increase, fabric face fault increases, and Quality Down, even brings heavy burden to mending.
Contrary with chemical dye, vegetable indigo dye, adopt the extracting method of natural environmental-protective, centre does not use noxious material, and the bipseudoindoxyl dye extracted, except containing except indigo pigment, also have the compositions containing medical value such as indigo red, indigo are brown, indigo is yellow.Show through clinical research, folium isatidis has anti-inflammation, clearing heat and detoxicating, improves the function of body immunity, especially can be used for the prevention of Japanese Type-B encephalitis; Indigo red has stronger non-oxidizability, has antitumaous effect, can be used for treating chronic myelocytic leukemia.
After vegetable indigo dye is combined with fiber, except giving wool fabric beautiful natural blueness, also give wool fabric pharmaceutical characteristic.In the Long Term Contact of human body skin and wool fabric, to formation layer protective layer, anti-inflammation, improves body immunity.
Summary of the invention
The object of this invention is to provide a kind of wool fibre bar dyeing technique of vegetable indigo dye, that the vegetable indigo powder of extraction is directly dissolved in water, add caustic soda and sodium hydrosulfite, wool tops is dyeed, after dyeing terminates, air blast be adopted to be oxidized wool tops, obtain the wool tops of indigo, wool top after dyeing is soaped, the wool tops of dye in acquisition.The wool tops COLOR FASTNESS that the method obtains is good, and technique environmental protection, free from environmental pollution, the wool tops after dyeing has certain antibiotic property and health care.
Object of the present invention is achieved through the following technical solutions:
A process for vegetable indigo dye dyeing wool bar, comprises following concrete steps:
1) the acanthaceous indigo leaf of collection is fully cleaned, remove impurity, naturally to dry or after low temperature drying, pulverize in pulverizer, obtain acanthaceous indigo leaf plant granulated slag, the mixed solution of second alcohol and water is poured in acanthaceous indigo leaf plant granulated slag, adopt ultrasonic wave process, obtain vegetable indigo extract;
2) extract obtained in step 1) is carried out high speed centrifugation, after removing impurity, carry out Vacuum Concentration drying, obtain vegetable indigo powder;
3) take the wool fibre bar of some, by step 2) in obtain vegetable indigo powder dissolution in soft water, and add caustic soda and sodium hydrosulfite successively, join in bar dye dye vat after stirring, the complete submergence of the wool top that will dye.Intensification starts dyeing, after held for some time, wool top is taken out dehydration from dye liquor;
4) be moved rapidly in air blast by the wool top in step 3), swiftly flowing air is oxidized wool top, until wool top becomes blue by yellow green;
5) wool top in step 4) is put back in dye vat, soaps, rinse with clear water again after soaping, dry, obtain the wool tops of vegetable indigo dyeing.
Preferred as technique scheme, ultrasonic power 250W in step 1), Extracting temperature is 70-90 DEG C, and extraction time is 60-80min, and extraction solid-to-liquid ratio is 1:15-1:30, and concentration of alcohol is 50-70%.
Preferred as technique scheme, step 2) described in ultracentrifugal speed be 8500-12000r/min, centrifugation time is 15-25min.
Preferred as technique scheme, step 2) in vacuumize, vacuum pressure is 0.2-0.3 MPa, and baking temperature is 60-80 DEG C, time 40-60min.
Preferred as technique scheme, the bar dye dyeing in step 3) is, dye dosage (o.w.f): 1%-5%, caustic soda 1.5-3g/L, sodium hydrosulfite 2-4g/L; Bath raio 1:10-1:30; Dyeing temperature 80 DEG C; Heating rate 1.5-2 DEG C/min; Dyeing time 40-50min;
Preferred as technique scheme, the blasting time in step 4) is 30-60min.
Preferred as technique scheme, the technique of soaping in step 5) is, soaping agent consumption 2-5g/l, and temperature of soaping 80 DEG C, soap time 10-15min.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Detailed description of the invention
embodiment 1
As shown in Figure 1, the acanthaceous indigo leaf of collection is fully cleaned, remove impurity, naturally to dry or after low temperature drying, pulverize in pulverizer, obtain acanthaceous indigo leaf plant granulated slag, the mixed solution of second alcohol and water is poured in acanthaceous indigo leaf plant granulated slag, concentration of alcohol 60%, adopt ultrasonic wave process, ultrasonic power 250W, Extracting temperature 80 DEG C, extraction time 60min, obtains vegetable indigo extract.Carry out high speed centrifugation to extract, centrifugal speed 8500r/min, centrifugation time 20min, after removing impurity, carry out Vacuum Concentration drying, vacuum pressure is 0.2 MPa, and baking temperature is 60 DEG C, time 45min, obtains vegetable indigo powder.
The above vegetable indigo powder extracted is adopted to dye to 66S australian merino wool (fineness 21 microns).Dyeing recipe: dye dosage 4.6%(o.w.f), amount of caustic soda 2.5g/L, sodium hydrosulfite: 4g/L, bath raio 1:30.Vegetable indigo powder dissolution in soft water, and adds caustic soda and sodium hydrosulfite successively, joins in bar dye dye vat, the complete submergence of the wool top that will dye after stirring.Intensification starts dyeing, and heating rate 1.5 DEG C/min, rises to 80 DEG C, insulation 40min.After insulation terminates, wool top is taken out dehydration from dye liquor, is moved rapidly in air blast, swiftly flowing air is oxidized wool top, until wool top becomes blue by yellow green.Wool top is put back in dye vat, soaps, soaping agent consumption 3g/l, temperature of soaping 80 DEG C, and soap time 15min, rinses again, dries, obtain the wool tops of vegetable indigo dyeing after soaping with clear water.
COLOR FASTNESS test is carried out to the wool top obtained, test result is as follows: dry friction COLOR FASTNESS 4 grades, fastness to wet rubbing 3 grades, to soap variable color COLOR FASTNESS 4-5 level, resistance to felt staining COLOR FASTNESS 4 grades of soaping, resistance to cotton staining COLOR FASTNESS 4 grades of soaping, resistance to water stain variable color COLOR FASTNESS 4-5 level, resistance to water stain felt staining COLOR FASTNESS 4 grades, resistance toly water stainly wash cloth staining COLOR FASTNESS 4 grades, perspiration resistance variable color COLOR FASTNESS 4-5 level, perspiration resistance felt staining COLOR FASTNESS 4 grades, perspiration resistance cotton staining COLOR FASTNESS 4 grades, resistance to dry-pressing variable color 4-5 level, resistance to tidal load variable color 4-5 level, resistance to wet pressing variable color 4-5 level, withstand voltage flatiron tidal load staining COLOR FASTNESS 4-5 level, withstand voltage flatiron wet pressing staining COLOR FASTNESS 4-5 level.
embodiment 2
The acanthaceous indigo leaf of collection is fully cleaned, remove impurity, naturally dry or after low temperature drying, pulverize in pulverizer, obtain acanthaceous indigo leaf plant granulated slag, the mixed solution of second alcohol and water is poured in acanthaceous indigo leaf plant granulated slag, concentration of alcohol 60%, adopt ultrasonic wave process, ultrasonic power 250W, Extracting temperature 80 DEG C, extraction time 60min, obtains vegetable indigo extract.Carry out high speed centrifugation to extract, centrifugal speed 8500r/min, centrifugation time 20min, after removing impurity, carry out Vacuum Concentration drying, vacuum pressure is 0.2 MPa, and baking temperature is 60 DEG C, time 45min, obtains vegetable indigo powder.
The above vegetable indigo powder extracted is adopted to dye to 70S Australia's merino mercerized wool (fineness 19.5 microns).Dyeing recipe: dye dosage 3%(o.w.f), amount of caustic soda 2g/L, sodium hydrosulfite: 3g/L, bath raio 1:20.Vegetable indigo powder dissolution in soft water, and adds caustic soda and sodium hydrosulfite successively, joins in bar dye dye vat, the complete submergence of the wool top that will dye after stirring.Intensification starts dyeing, and heating rate 1.5 DEG C/min, rises to 80 DEG C, insulation 40min.After insulation terminates, wool top is taken out dehydration from dye liquor, is moved rapidly in air blast, swiftly flowing air is oxidized wool top, until wool top becomes blue by yellow green.Wool top is put back in dye vat, soaps, soaping agent consumption 3g/l, temperature of soaping 80 DEG C, and soap time 15min, rinses again, dries, obtain the wool tops of vegetable indigo dyeing after soaping with clear water.
COLOR FASTNESS test is carried out to the wool top obtained, test result is as follows: dry friction COLOR FASTNESS 4 grades, fastness to wet rubbing 3 grades, to soap variable color COLOR FASTNESS 4-5 level, resistance to felt staining COLOR FASTNESS 4 grades of soaping, resistance to cotton staining COLOR FASTNESS 4 grades of soaping, resistance to water stain variable color COLOR FASTNESS 4-5 level, resistance to water stain felt staining COLOR FASTNESS 4 grades, resistance toly water stainly wash cloth staining COLOR FASTNESS 4 grades, perspiration resistance variable color COLOR FASTNESS 4-5 level, perspiration resistance felt staining COLOR FASTNESS 4 grades, perspiration resistance cotton staining COLOR FASTNESS 4 grades, resistance to dry-pressing variable color 4-5 level, resistance to tidal load variable color 4-5 level, resistance to wet pressing variable color 4-5 level, withstand voltage flatiron tidal load staining COLOR FASTNESS 4-5 level, withstand voltage flatiron wet pressing staining COLOR FASTNESS 4-5 level.
Claims (7)
1. a process for vegetable indigo dye dyeing wool bar, is characterized in that, this technique comprises following concrete steps:
1) the acanthaceous indigo leaf of collection is fully cleaned, remove impurity, naturally to dry or after low temperature drying, pulverize in pulverizer, obtain acanthaceous indigo leaf plant granulated slag, the mixed solution of second alcohol and water is poured in acanthaceous indigo leaf plant granulated slag, adopt ultrasonic wave process, obtain vegetable indigo extract;
2) extract obtained in step 1) is carried out high speed centrifugation, after removing impurity, carry out Vacuum Concentration drying, obtain vegetable indigo powder;
3) take the wool fibre bar of some, by step 2) in obtain vegetable indigo powder dissolution in soft water, and add caustic soda and sodium hydrosulfite successively, join in bar dye dye vat after stirring, the complete submergence of the wool top that will dye; Intensification starts dyeing, after held for some time, wool top is taken out dehydration from dye liquor;
4) be moved rapidly in air blast by the wool top in step 3), swiftly flowing air is oxidized wool top, until wool top becomes blue by yellow green;
5) wool top in step 4) is put back in dye vat, soaps, rinse with clear water again after soaping, dry, obtain the wool tops of vegetable indigo dyeing.
2., according to the process of a kind of vegetable indigo dye dyeing wool bar described in claims 1, it is characterized in that, ultrasonic power 250W in step 1), Extracting temperature is 70-90 DEG C, extraction time is 60-80min, and extraction solid-to-liquid ratio is 1:15-1:30, and concentration of alcohol is 50-70%.
3., according to the process of a kind of vegetable indigo dye dyeing wool bar described in claims 1, it is characterized in that, step 2) described in ultracentrifugal speed be 8500-12000r/min, centrifugation time is 15-25min.
4., according to the process of a kind of vegetable indigo dye dyeing wool bar described in claims 1, it is characterized in that, step 2) in vacuumize, vacuum pressure is 0.2-0.3 MPa, and baking temperature is 60-80 DEG C, time 40-60min.
5. according to the process of a kind of vegetable indigo dye dyeing wool bar described in claims 1, it is characterized in that, the bar dye dyeing in step 3) is, dye dosage (o.w.f): 1%-5%, caustic soda 1.5-3g/L, sodium hydrosulfite 2-4g/L; Bath raio 1:10-1:30; Dyeing temperature 80 DEG C; Heating rate 1.5-2 DEG C/min; Dyeing time 40-50min.
6., according to the process of a kind of vegetable indigo dye dyeing wool bar described in claims 1, it is characterized in that, the blasting time in step 4) is 30-60min.
7. according to the process of a kind of vegetable indigo dye dyeing wool bar described in claims 1, it is characterized in that, the technique of soaping in step 5) is, soaping agent consumption 2-5g/l, and temperature of soaping 80 DEG C, soap time 10-15min.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106245375A (en) * | 2016-09-21 | 2016-12-21 | 东莞市联洲知识产权运营管理有限公司 | A kind of dyestuff based on cellulose base aeroge and preparation thereof and colouring method |
| CN110158329A (en) * | 2019-05-15 | 2019-08-23 | 苏州麻朵纺织科技有限公司 | A kind of plant indigo dye made of indigo herb is used for the large-scale method for producing of garment dyeing |
| CN110761085A (en) * | 2019-09-20 | 2020-02-07 | 凯盛家纺股份有限公司 | Dyeing method adopting plant indigo |
| CN111270534A (en) * | 2020-04-01 | 2020-06-12 | 青岛大学 | Method for dyeing high-quality bulk fiber plant indigo |
| CN112482050A (en) * | 2020-11-24 | 2021-03-12 | 林晓莉 | Vegetable dyeing method of loofah sponge |
| CN112981987A (en) * | 2021-03-02 | 2021-06-18 | 湖州高盛毛纺有限公司 | Dyeing process of blue vegetable dye in cashmere fiber |
| CN115109432A (en) * | 2021-03-22 | 2022-09-27 | 中国林业科学研究院林产化学工业研究所 | Method for converting indigo by rolling and breaking walls of indole alkaloids in malayan leaves |
| CN115558314A (en) * | 2022-09-20 | 2023-01-03 | 江苏本草新萃生物科技有限公司 | Processing method for making kalanchoe leaves as water-soluble indigo pigment extraction raw material |
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| CN106245375A (en) * | 2016-09-21 | 2016-12-21 | 东莞市联洲知识产权运营管理有限公司 | A kind of dyestuff based on cellulose base aeroge and preparation thereof and colouring method |
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| CN111270534A (en) * | 2020-04-01 | 2020-06-12 | 青岛大学 | Method for dyeing high-quality bulk fiber plant indigo |
| CN111270534B (en) * | 2020-04-01 | 2022-07-12 | 青岛大学 | Method for dyeing high-quality bulk fiber plant indigo |
| CN112482050A (en) * | 2020-11-24 | 2021-03-12 | 林晓莉 | Vegetable dyeing method of loofah sponge |
| CN112981987A (en) * | 2021-03-02 | 2021-06-18 | 湖州高盛毛纺有限公司 | Dyeing process of blue vegetable dye in cashmere fiber |
| CN115109432A (en) * | 2021-03-22 | 2022-09-27 | 中国林业科学研究院林产化学工业研究所 | Method for converting indigo by rolling and breaking walls of indole alkaloids in malayan leaves |
| CN115109432B (en) * | 2021-03-22 | 2023-11-28 | 中国林业科学研究院林产化学工业研究所 | Method for converting indigo by rolling wall breaking of bluish She Yin indole alkaloids |
| CN115558314A (en) * | 2022-09-20 | 2023-01-03 | 江苏本草新萃生物科技有限公司 | Processing method for making kalanchoe leaves as water-soluble indigo pigment extraction raw material |
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