CN102168368A - Method for improving color stability of natural green cotton fiber - Google Patents
Method for improving color stability of natural green cotton fiber Download PDFInfo
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- CN102168368A CN102168368A CN 201110055247 CN201110055247A CN102168368A CN 102168368 A CN102168368 A CN 102168368A CN 201110055247 CN201110055247 CN 201110055247 CN 201110055247 A CN201110055247 A CN 201110055247A CN 102168368 A CN102168368 A CN 102168368A
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 148
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 29
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 28
- 238000000605 extraction Methods 0.000 claims description 16
- 238000010992 reflux Methods 0.000 claims description 8
- 230000002708 enhancing effect Effects 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 abstract description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 4
- 239000003208 petroleum Substances 0.000 abstract 2
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 241000219146 Gossypium Species 0.000 description 58
- 230000004075 alteration Effects 0.000 description 29
- 239000000835 fiber Substances 0.000 description 16
- 239000011087 paperboard Substances 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 8
- 239000002932 luster Substances 0.000 description 8
- 238000001291 vacuum drying Methods 0.000 description 8
- 238000005303 weighing Methods 0.000 description 8
- 238000011160 research Methods 0.000 description 6
- 239000004753 textile Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 238000000944 Soxhlet extraction Methods 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 229940103272 aluminum potassium sulfate Drugs 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The invention discloses a method for improving color stability of a natural green cotton fiber, which comprises the steps of: using petroleum ether as a conditioning fluid, and putting the natural green cotton fiber into the petroleum ether and extracting for 10 to 12 hours in a backflow state, wherein the bath ratio is 1 to 20-50; and then drying the extracted natural green cotton fiber in a vacuum state at a temperature of 50 to 70 DEG C in darkness. By adopting the method, the color stability including dry heat stability and sunlight stability of the natural green cotton fiber is improved.
Description
Technical field
The present invention relates to the processing method of natural green cotton fiber, especially relate to a kind of method that strengthens natural green cotton fiber color stability.
Background technology
Natural color cotton is called colored cotton again, is the cotton type that a kind of fiber contains natural colouring matter.Color is that pigment (chromophoric group) is deposited on the cotton fiber lumen in cotton fiber development and ripe day by day process, or pigment combines with cotton fiber in many ways, or by above-mentioned two kinds of coefficient results of factor.Natural color cotton is not to be a kind of new cotton variety, and according to textual criticism, the ancient human before more than 3000 years has just begun to plant natural color cotton.China 18,19th-century Jiangsu and Zhejiang Provinces one band extensive a kind of purple yellow cotton variety of plantation once, also be a kind of in the natural color cotton, the pale reddish brown cloth of weaving out with it once was on sale in Europe, and gained great popularity.19th-century mid-term, the industrial revolution has driven the development of textile industry and printing and dyeing industry, and this moment, people cultivated the stable white cotton of proterties, people utilize advanced printing technology that the white cotton fabric is made bright and colourful cloth, and natural color cotton is because color instability, fiber quality are poor, factor such as yield poorly is eliminated gradually.
Along with the raising of living standards of the people, people's the awareness of environment protection and health is constantly strengthened, and the hope of pursuing back to nature is strong day by day, and people favor free of contamination natural fabric more, and colored cotton industry is risen again gradually.Although at present worldwide, color cotton plantation and application are extensively popularized as yet; But the relevant expert thinks that natural color cotton one becomes the most potential new industry surely in new century, also one brings a unusual deep revolution for surely traditional textile industry.At present, China becomes the important topic in the cotton research and production to all attaching great importance in colored cotton breeding, cultivation technique and the colored cotton Products Development research.Colored cotton divides, have multiple colors such as natural palm fibre, Huang, green, red, ash, but in weaving, the brown and green two kinds of fundamental types of mainly containing of using value are arranged by color and luster.
With the textiles that colored cotton is made into, color is natural, quality is soft, comfortable and easy to wear.Colored cotton cotton yarn, cotton etc. do not need bleaching, sterilization and chemical staining, are not corroded by chemical substance, do not have the residual of chemical toxicant yet.Both can save the dyeing process of textile enterprise, reduce the cost of textiles, but the conservation of nature ecological environment be not contaminated again.So natural color cotton is known as ecological cotton again, even be " the ecological beauty " that the people praises arranged, it has the following advantage:
(1), from planting ready-made clothes processing, do not use agricultural chemicals and chemical stain, do not contain the chemical hazard factors such as formaldehyde, azo in the textiles, meet the ecological criteria of " environmental protection ";
(2), save dyeing process, reduce production costs;
(3), natural color cotton is not corroded the quality softness by dyestuff; The pH value is subacidity, and affine skin is comfortable and easy to wear.
But the color instability of natural color cotton, allochroic situation still exists in processing, dress and washing process, especially green cotton can be become brown when anti-crease finishing by green, under xeothermic and humid tropical condition metachromatism is arranged all, these a series of reasons have limited the development and utilization prospect of natural color cotton.The at present domestic research report that many natural color cotton variable color rules are arranged, generally all be that the research look became rule after natural colorful cotton fibre was directly carried out the research of variable color rule or adopts the metal ion fixation, it is dark firm that its color is increased, but prerequisite is to have changed the original soft color of natural green cotton fiber, and aberration changes very big, also have the residual problem of metal ion, this check to the natural color cotton product is very unfavorable.The research of green cotton color stability is a difficult problem that needs to be resolved hurrily.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method that strengthens natural green cotton fiber color stability, adopts this method can improve the color stability (comprising dry heat stability and Exposure to Sunlight stability) of natural green cotton fiber.
In order to solve the problems of the technologies described above, the invention provides a kind of method that strengthens natural green cotton fiber color stability,, the natural green cotton fiber is put into benzinum extract processing 10 ~ 12h down in reflux state as treatment fluid with benzinum, bath raio is 1:20 ~ 50; Natural green cotton fiber carries out the lucifuge oven dry in 50 ~ 70 ℃ after the extraction with gained under vacuum state then.
Improvement as the method for enhancing natural green cotton fiber color stability of the present invention: benzinum is that boiling range is 60 ~ 90 ℃ a benzinum.
Further improvements in methods as enhancing natural green cotton fiber color stability of the present invention: the natural green cotton fiber is meant the ripe natural green cotton fiber without refining processing.
Ripe natural green cotton fiber without refining processing of the present invention is meant that green cotton fiber after the maturation is plucked after the direct gined cotton of cotton ginning gained, without other processing.
The principle of the inventive method is to handle by the extraction of benzinum, removes some material in the natural green cotton fiber, thereby improves the color stability (comprising dry heat stability and Exposure to Sunlight stability) of natural green cotton fiber.
In the present invention, the temperature of reflux extraction generally is controlled at about 70 ℃.Bath raio is 1:20 ~ 50, i.e. representative: the mass ratio of natural green cotton fiber and benzinum is 1:20 ~ 50.Because it is more that the natural green cotton fiber can variable color under xeothermic situation, thus use backflow can prevent the natural green cotton fiber when benzinum soaks with the contacting of air.Oven dry of the present invention is carried out in vacuum drying chamber, and the natural green cotton fiber in extraction back requires by lucifuge (the no base stock box that this fiber utilization black paperboard is converted into covers) oven dry, and every 10min weighing once no longer reduces to quality.
The method of enhancing natural green cotton fiber color stability of the present invention is under the condition of green and low energy consumption, handles by the hygrometric state of benzinum, makes the natural green cotton fiber reach the method that color stability improves; And benzinum can carry out reuse by processing.The natural green cotton fiber in extraction back can be removed benzinum by oven dry under vacuum state, test as follows: after getting fiber utilization 100ml ethanol after 2g the present invention handles and being solvent soxhlet extraction 12h, getting an amount of extract utilizes Agilent 6890N type gas chromatograph/5973I type mass spectrograph (U.S. Agilent company) to analyze, with gained collection of illustrative plates and the contrast of benzinum collection of illustrative plates, do not find that benzinum is residual.
The specific embodiment
Natural green cotton fiber in following examples all refers to the ripe natural green cotton fiber without refining processing, meets following characteristic: fiber quality length 23.3cm, short fiber content 21.3%, fracture specific strength 17.5cN/tex, elongation at break 6.7%; Lustre index: L=58.61, a=1.74, b=18.49.It is pure that benzinum is the benzinum analysis, and boiling range is 60-90 ℃.
Embodiment 1,A kind of method that strengthens natural green cotton fiber color stability: treatment fluid is a benzinum, and 5g natural green cotton fiber is put into 150g benzinum (being that bath raio is 1:30), reflux extraction 12h in soxhlet's extractor.Take out natural green cotton fiber after the extraction of gained, 50 ℃ of constant temperature lucifuges (the no base stock box that this fiber utilization black paperboard is converted into covers) oven dry in vacuum drying chamber, every 10min weighing once no longer reduce to quality.
Experiment 1, natural green cotton fiber and unprocessed original natural green cotton fiber after the processing with the foregoing description 1 gained are (with the selected natural green cotton fiber of embodiment 1, hereinafter to be referred as raw cotton) pave, paperboard clamping with the band circular hole, measuring colour difference (is contrast with the raw cotton) is 0.03, in 150 ℃ baking oven, handle measuring colour difference (is contrast with sample before drying by the fire) behind the 2min then, aberration after the present invention handles is 0.157, and undressed raw cotton aberration is 0.303.Measuring colour difference behind the processing 1h in 150 ℃ baking oven, the aberration after the present invention handles is 2.127, undressed raw cotton aberration is 4.037.The heat endurance of the natural green cotton fiber color and luster after thereby proof the present invention handles improves significantly.
Embodiment 2,A kind of method that strengthens natural green cotton fiber color stability: treatment fluid is a benzinum, and 5g natural green cotton fiber is put into 200g benzinum (that is, bath raio is 1:40), reflux extraction 10h in soxhlet's extractor.Take out natural green cotton fiber after the extraction of gained, 60 ℃ of constant temperature lucifuges oven dry in vacuum drying chamber, every 10min weighing once no longer reduce to quality.
Experiment 2, natural green cotton fiber and unprocessed original natural green cotton fiber after the processing with the foregoing description 2 gained are (with the selected natural green cotton fiber of embodiment 2, hereinafter to be referred as raw cotton) pave, paperboard clamping with the band circular hole, measuring colour difference (is contrast with the raw cotton) is 0.03, in 180 ℃ baking oven, handle measuring colour difference (is contrast with sample before drying by the fire) behind the 2min then, aberration after the present invention handles is 0.297, and undressed raw cotton aberration is 0.503.Measuring colour difference behind the processing 1h in 180 ℃ baking oven, the aberration after the present invention handles is 3.459, undressed raw cotton aberration is 10.163.The heat endurance of the natural green cotton fiber color and luster after thereby proof the present invention handles improves significantly.
Embodiment 3,A kind of method that strengthens natural green cotton fiber color stability: treatment fluid is a benzinum, and 5g natural green cotton fiber is put into 250g benzinum (that is, bath raio is 1:50), reflux extraction 11h in soxhlet's extractor.Take out natural green cotton fiber after the extraction of gained, 70 ℃ of constant temperature lucifuges oven dry in vacuum drying chamber, every 10min weighing once no longer reduce to quality.
Experiment 3, natural green cotton fiber and unprocessed original natural green cotton fiber after the processing with the foregoing description 3 gained are (with the selected natural green cotton fiber of embodiment 3, hereinafter to be referred as raw cotton) pave, paperboard clamping with the band circular hole, measuring colour difference (is contrast with the raw cotton) is 0.04, in 110 ℃ baking oven, handle measuring colour difference (is contrast with sample before drying by the fire) behind the 2min then, aberration after the present invention handles is 0.103, and undressed raw cotton aberration is 0.241.Measuring colour difference behind the processing 1h in 110 ℃ baking oven, the aberration after the present invention handles is 1.194, undressed raw cotton aberration is 2.523, and the heat endurance of the natural green cotton fiber color and luster after proof the present invention processing improves significantly.
Embodiment 4,A kind of method that strengthens natural green cotton fiber color stability: treatment fluid is a benzinum, and 5g natural green cotton fiber is put into 100g benzinum (that is, bath raio is 1:20), reflux extraction 12h in soxhlet's extractor.Take out natural green cotton fiber after the extraction of gained, 50 ℃ of constant temperature lucifuges oven dry in vacuum drying chamber, every 10min weighing once no longer reduce to quality.
Experiment 4, natural green cotton fiber and unprocessed original natural green cotton fiber after the processing with the foregoing description 4 gained are (with the selected natural green cotton fiber of embodiment 4, hereinafter to be referred as raw cotton) pave, paperboard clamping with the band circular hole, measuring colour difference (is contrast with the raw cotton) is 0.03, in 180 ℃ baking oven, handle measuring colour difference (is contrast with sample before drying by the fire) behind the 2min then, aberration after the present invention handles is 0.302, and undressed raw cotton aberration is 0.503.Measuring colour difference behind the processing 1h in 180 ℃ baking oven, the aberration after the present invention handles is 3.538, undressed raw cotton aberration is 10.163.The heat endurance of the natural green cotton fiber color and luster after thereby proof the present invention handles improves significantly.
Embodiment 5,A kind of method that strengthens natural green cotton fiber color stability: treatment fluid is a benzinum, and 5g natural green cotton fiber is put into 125g benzinum (that is, bath raio is 1:25), reflux extraction 12h in soxhlet's extractor.Take out natural green cotton fiber after the extraction of gained, 50 ℃ of constant temperature lucifuges oven dry in vacuum drying chamber, every 10min weighing once no longer reduce to quality.
Experiment 5, get 5 parts of natural green cotton fibers after the processing of the foregoing description 5 gained and unprocessed original natural green cotton fiber (with the selected natural green cotton fiber of embodiment 5, hereinafter to be referred as raw cotton) 5 parts pave, paperboard clamping with the band circular hole, adopting the weathering color fastness instrument to carry out Exposure to Sunlight handles, handle measuring colour difference (38 ℃ of the temperature inside the box behind 1h, 2h, 3h, 4h, the 5h respectively, humidity 60%, intensity of illumination 40W/m
2).Fiber Exposure to Sunlight 1～5h aberration that the present invention handles is respectively 2.013,2.274,2.712,2.753,3.349, and undressed raw cotton aberration is 2.190,2.621,2.795,3.452,3.817.The Exposure to Sunlight stability of the natural green cotton fiber color and luster after thereby proof the present invention handles improves.
Natural green cotton fiber (being experimental group 1 ~ experimental group 4) is equal to the contrast experiment that the Exposure to Sunlight stability of color and luster is carried out in experiment 5 after experiment 6, the processing with embodiment 1 ~ embodiment 4 gained.The result is as follows:
Experimental group 1 gained fiber Exposure to Sunlight 1～5h aberration is respectively 2.023,2.264,2.715,2.743,3.338;
Experimental group 2 gained fiber Exposures to Sunlight 1～5h aberration is respectively 2.014,2.279,2.752,2.761,3.346;
Experimental group 3 gained fiber Exposures to Sunlight 1～5h aberration is respectively 2.017,2.354,2.782,2.758,3.298;
Experimental group 4 gained fiber Exposures to Sunlight 1～5h aberration is respectively 2.113,2.374,2.712,2.851,3.449.
As seen the Exposure to Sunlight stability of natural green cotton fiber colour is compared with the natural green cotton fiber before the processing and is improved after handling among the present invention.
Reference examples 1:
An amount of natural green cotton fiber is joined the 5%(mass concentration) the slaine liquor ferri trichloridi in; the mass ratio of bath raio 1:50(cotton fiber and solution); 60 ℃ handle 1h after 50 ℃ of constant temperature lucifuges (the no base stock box that fiber utilization black paperboard is converted into covers) oven dry in vacuum drying chamber; every 10min weighing once no longer reduces to quality.Measuring colour difference, △ E reaches 11.07 as a result.The green cotton fiber of processing back oven dry is paved, and uses the paperboard clamping of band circular hole, measuring colour difference (with cotton sample contrast before drying by the fire) behind the processing 2min in 150 ℃ baking oven, and aberration is 0.183, measuring colour difference behind the processing 1h, aberration is 3.617.Adopting the weathering color fastness instrument to carry out Exposure to Sunlight to the green cotton fiber of handling the back oven dry handles, handle measuring colour difference (38 ℃ of the temperature inside the box behind 1h, 2h, 3h, 4h, the 5h respectively, humidity 60%, intensity of illumination 40W/m2), △ E is respectively 3.29,3.47,3.61,3.96,4.23.
Reference examples 2:
An amount of natural green cotton fiber joined in 5% the slaine aluminum potassium sulfate solution; the mass ratio of bath raio 1:50(cotton fiber and solution); 60 ℃ handle 1h after 50 ℃ of constant temperature lucifuges (the no base stock box that fiber utilization black paperboard is converted into covers) oven dry in vacuum drying chamber; every 10min weighing once no longer reduces to quality.Measuring colour difference, △ E reaches 25.41 as a result.The green cotton fiber of processing back oven dry is paved, and uses the paperboard clamping of band circular hole, measuring colour difference (with cotton sample contrast before drying by the fire) behind the processing 2min in 110 ℃ baking oven, and aberration is 0.227, measuring colour difference behind the processing 1h, aberration is 2.138.Adopting the weathering color fastness instrument to carry out Exposure to Sunlight to the green cotton fiber of handling the back oven dry handles, handle measuring colour difference (38 ℃ of the temperature inside the box behind 1h, 2h, 3h, 4h, the 5h respectively, humidity 60%, intensity of illumination 40W/m2), △ E is respectively 3.31,3.67,3.98,4.36,4.72.
As seen handle the natural green cotton fiber in back among the present invention and change seldom than aberration with raw cotton, heat endurance and Exposure to Sunlight stability also improve.The slaine fixation treatment has changed the original soft color of natural green cotton fiber, and very bigger than the aberration change with raw cotton after the slaine fixation treatment, though it is good than raw cotton to handle the natural green cotton fiber heat endurance in back, Exposure to Sunlight stability is poor than raw cotton; And heat endurance and Exposure to Sunlight stability all are worse than and handle the back stability of sample among the present invention.
In sum, processing mode of the present invention is handled more stable and has been kept the soft color and luster of raw cotton at more existing slaine aspect the look change, and heat endurance and Exposure to Sunlight stability are better than untreated former natural green cotton fiber.
At last, it is also to be noted that what more than enumerate only is several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (3)
1. strengthen the method for natural green cotton fiber color stability, it is characterized in that:, the natural green cotton fiber is put into benzinum extract processing 10 ~ 12h down in reflux state as treatment fluid with benzinum, bath raio is 1:20 ~ 50; Natural green cotton fiber carries out the lucifuge oven dry in 50 ~ 70 ℃ after the extraction with gained under vacuum state then.
2. the method for enhancing natural green cotton fiber color stability according to claim 1 is characterized in that: described benzinum is that boiling range is 60 ~ 90 ℃ a benzinum.
3. the method for enhancing natural green cotton fiber color stability according to claim 2 is characterized in that: described natural green cotton fiber is meant the ripe natural green cotton fiber without refining processing.
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| CN201110055247XA CN102168368B (en) | 2011-03-09 | 2011-03-09 | Method for improving color stability of natural green cotton fiber |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286330A (en) * | 1999-08-25 | 2001-03-07 | 九采罗彩棉产业有限公司 | Process for processing natural colour cotton fabrics |
| CN1882740A (en) * | 2003-11-20 | 2006-12-20 | 日本化药株式会社 | Color deepening agent for fiber and method for deepening color of fiber using same |
| CN1974918A (en) * | 2006-11-11 | 2007-06-06 | 青岛喜盈门集团有限公司 | Post color light stabilizing process of natural color cotton towel |
| CN101250808A (en) * | 2008-02-29 | 2008-08-27 | 浙江理工大学 | Zoology dressing method for deep-dyeing and brightening natural colorful cotton fibre or textile |
-
2011
- 2011-03-09 CN CN201110055247XA patent/CN102168368B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286330A (en) * | 1999-08-25 | 2001-03-07 | 九采罗彩棉产业有限公司 | Process for processing natural colour cotton fabrics |
| CN1882740A (en) * | 2003-11-20 | 2006-12-20 | 日本化药株式会社 | Color deepening agent for fiber and method for deepening color of fiber using same |
| CN1974918A (en) * | 2006-11-11 | 2007-06-06 | 青岛喜盈门集团有限公司 | Post color light stabilizing process of natural color cotton towel |
| CN101250808A (en) * | 2008-02-29 | 2008-08-27 | 浙江理工大学 | Zoology dressing method for deep-dyeing and brightening natural colorful cotton fibre or textile |
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Granted publication date: 20120822 Termination date: 20160309 |