CN100352993C - Bleaching method of fenther fabric - Google Patents
Bleaching method of fenther fabric Download PDFInfo
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- CN100352993C CN100352993C CNB2005100362342A CN200510036234A CN100352993C CN 100352993 C CN100352993 C CN 100352993C CN B2005100362342 A CNB2005100362342 A CN B2005100362342A CN 200510036234 A CN200510036234 A CN 200510036234A CN 100352993 C CN100352993 C CN 100352993C
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Abstract
The present invention discloses a bleaching method of feather fabric, which has the following steps: firstly, pretreating feather fabric by ferrous ion; then, carrying out selective oxidation of the feather fabric in a hydrogen peroxide solution; finally, carrying out reduction bleaching in a sodium hydrosulfite solution. The natural pigment contained in the feather fabric can be effectively removed, the whiteness of the fabric is increased, the damage to intensity is also small, and requirements of garment materials can be satisfied.
Description
Technical field
The invention belongs to fenther fabric bleaching technology field, relate in particular to a kind of method for bleaching of fenther fabric.
Background technology
Large-scale poultry farming produces a large amount of refuses, serious environment pollution, and its mesoptile amount ranks first.China is poultry farming big country, and annual poultry total amount of livestock for sale reaches 3,200,000,000, and 1,000,000 tons of feather eider down amounts account for 70% of the world, how effectively to utilize this source rich in protein fiber, alleviates its pollution to environment, is the hot issue that needs solution always.Up to the present, about 20% the feather eiderdown quilt of only having an appointment is made the filler of roughage and resisting cold clothes, can only obtain lower added value.
Owing to goat is caused the deterioration of environment to the destruction of vegetation, the goat aquaculture is limited, and production of wool descends year by year, and people need seek the thermal property new fiber suitable with wool, and feather eider down a kind of wool substitute of excellence just.
The fabric that is made into after feather and the textile fabric blending by a certain percentage, have light weight, excellent properties such as warming, moistureproof, crease-resistant, can obtain to liken to and be the much higher added value of filler.The Chinese patent publication number is 1584159 to disclose a kind of feather fiber composite yarn and fabric production method thereof, solved feather fiber short, straight, do not have coherent, tensile strength lower, can not directly be used for a difficult problem of spinning.But because the intrinsic fault of construction of feather fiber causes the performance deficiency of its fabric, the natural colouring matter that is contained as feather fiber itself causes its fabric whiteness low, its grey cloth whiteness is generally below 40 degree, influence coloration of textile materials effect and instructions for use, take requirement so must handle to satisfy by special dyeing and finishing.Generally all adopt highly basic or strong oxidizer to improve fabric whiteness in the dyeing and finishing industry, as the conventional bleaching technology of general fabrics be: hydrogen peroxide, sodium bicarbonate, sodium pyrophosphate, urea, bleeding agent, pH:10.5-11.0 or more than, temperature 95-100 ℃, more than the time 90min.Adopt this common process that fenther fabric is bleached, the pigment poor removal effect, even more serious is that the conventional bleaching method is very big to the feather fiber strength failure, this is because feather fiber is a kind of protein fibre of complexity, its endothecium structure also is amino acid such as the plumage albumen of feather fiber main body such as glutamic acid, arginine, light propylhomoserin, threonine, at high temperature quite responsive to alkali and strong oxidizer, so the conventional bleaching method makes feather fiber become fragile, rupture easily, can not satisfy and take requirement.
Summary of the invention
The object of the present invention is to provide a kind of method for bleaching of fenther fabric, this method not only can effectively be removed the pigment on the feather, and can significantly reduce damage and destruction to feather fiber.
The present invention was made up of three steps: with ferrous ion fenther fabric is carried out preliminary treatment earlier, carry out selective oxidation then in hydrogen peroxide solution, carry out reducing bleach at last in the hydrosulfurous acid sodium solution.
The concrete bleaching process of the method for bleaching of a kind of fenther fabric of the present invention is as follows:
(1) preliminary treatment: it is 4.0～6.0 ferrous sulfate pretreatment solution that 3～6g/L sulfate industry iron, 1～3g/L bleeding agent, 2～4g/L citric acid are mixed with pH, optimal selection 5.0～6.0, be warming up to 40～60 ℃, again being placed in one through the wetting fenther fabric of warm water, reaction is 20～40 minutes when stirring, then, in 60～75 ℃ hot water, clean 10～25min;
(2) selective oxidation: it is 8.0～10.0 selective oxidation solution that 10～15g/L30% hydrogen peroxide, 2～4g/L hydrogen peroxide stabilizer, 3～5g/L urea are mixed with pH, be warming up to 60～80 ℃, again being placed in one through pretreated fenther fabric, the simultaneous oxidation of stirring 40～60 minutes, use cold water flush then;
(3) reducing bleach: it is 6.0～8.0 reducing bleach solution that 3～6g/L sodium dithionite, 6～8g/L oxalic acid are mixed with pH, be warming up to 40～60 ℃, the fenther fabric behind selective oxidation is placed in one, reductase 12 is 0～40 minute when stirring, and uses cold water flush then again;
(4) fenther fabric after reducing bleach is handled is wrung out, in baking oven, dried.
Bath raio is 1: 25 in above-mentioned all processing procedures.
The present invention compares with the conventional bleaching method, has following advantage:
1) can more effectively remove natural colouring matter in the feather fiber, whiteness significantly improves, and strength damage is little.Because the pigment in the feather fiber is a kind of heteropolymer that contains the conjugation heterocycle structure, on heterocycle, connected many nitrogen, oxygen, hydroxyl, ketone group and carboxylic group again, have chelation.The present invention is in preprocessing process, and ferrous ion preferentially or optionally is adsorbed onto on the pigment, with the dentate generation chelating of pigment, cleans with hot water then, washes the iron that is adsorbed on the fiber plumage albumen, only keeps the iron of combination on the pigment.Like this, in the selective oxidation process, the ferrous ion that combines with pigment can decompose by catalyzing hydrogen peroxide, discharges active oxygen: H
2O
2=H
2O+[O], simultaneously the energy that when decomposing, discharged of hydrogen peroxide also catalysis the decomposition of hydrogen peroxide itself, make bleaching more violent, so be chelated with the preferential and hydrogen peroxide reaction of the pars pigmentosa branch of ferrous ion in the feather fiber, the pigment structure is destroyed and lost color, and feather fiber main body plumage protein part is because adsorbed iron has been cleaned, so the damage of plumage protein part is little.At last, adopt sodium dithionite and oxalic acid to be mixed with reducing solution and again the fenther fabric behind the selective oxidation is carried out reducing bleach.On the one hand because the strong reducing property of sodium dithionite can further improve fabric whiteness, on the other hand owing to added oxalic acid with chelation, in conjunction with the ferrous ion on the cloth cover, thereby prevented that reducing bleach from causing the phenomenon of fabric yellowing, the whiteness that keeps fabric to obtain later on owing to ferrous ion oxidation in air.Fenther fabric whiteness after the present invention handles can reach about 65, and loss of strength is below 10%, and the conventional bleaching method is handled fenther fabric, and whiteness can only reach 50, and loss of strength is but more than 30%;
2) required pH is 4.0-10.0 among the present invention, and temperature is the highest to be no more than 80 ℃, has avoided highly basic, hot conditions required in the conventional bleaching method, has saved the energy.
The specific embodiment
Below by embodiment the present invention is described in further detail.
Embodiment 1
(1) preliminary treatment: it is 6.0 ferrous sulfate pretreatment solution that 3g/L ferrous sulfate, 1g/L penetrating agent JFC, 2g/L citric acid are mixed with pH, be warming up to 60 ℃, again being placed in one through the wetting fenther fabric of warm water, reaction is 40 minutes when stirring, then, in 75 ℃ hot water, clean 25min;
(2) selective oxidation: it is 10.0 selective oxidation solution that 10g/L 30% hydrogen peroxide, 2g/L hydrogen peroxide stabilizer, 3g/L urea are mixed with pH, be warming up to 80 ℃, being placed in one,, use cold water flush then again the simultaneous oxidation of stirring 60 minutes through pretreated fenther fabric;
(3) reducing bleach: it is 8.0 reducing bleach solution that 3g/L sodium dithionite, 6g/L oxalic acid are mixed with pH, is warming up to 60 ℃, the fenther fabric behind selective oxidation is placed in one again, and reduction is 40 minutes when stirring, and uses cold water flush then;
(4) at last the fenther fabric after reducing bleach is handled is wrung out, in baking oven, dried.
Bath raio is 1: 25 in above-mentioned all processing procedures.
Embodiment 2
(1) preliminary treatment: it is 5.5 sulfate industry iron pretreatment solution that 4g/L ferrous sulfate, 1.5g/L penetrant t, 2.5g/L citric acid are mixed with pH, be warming up to 55 ℃, again being placed in one through the wetting fenther fabric of warm water, reaction is 35 minutes when stirring, then, in 70 ℃ hot water, clean 20min;
(2) selective oxidation: it is 9.5 selective oxidation solution that 12g/L30% hydrogen peroxide, 2.5g/L hydrogen peroxide stabilizer, 3.5g/L urea are mixed with pH, be warming up to 75 ℃, being placed in one,, use cold water flush then again the simultaneous oxidation of stirring 55 minutes through pretreated fenther fabric;
(3) reducing bleach: it is 7.5 reducing bleach solution that 4g/L sodium dithionite, 6.5g/L oxalic acid are mixed with pH, is warming up to 55 ℃, the fenther fabric behind selective oxidation is placed in one again, and reduction is 35 minutes when stirring, and uses cold water flush then;
(4) at last the fenther fabric after reducing bleach is handled is wrung out, in baking oven, dried.
Bath raio is 1: 25 in above-mentioned all processing procedures.
Embodiment 3
(1) preliminary treatment: it is 5.0 ferrous sulfate pretreatment solution that 5g/L sulfate industry iron, 2g/L penetrant t x, 3g/L citric acid are mixed with pH, be warming up to 50 ℃, again being placed in one through the wetting fenther fabric of warm water, reaction is 30 minutes when stirring, then, in 65 ℃ hot water, clean 15min;
(2) selective oxidation: it is 9.0 selective oxidation solution that 14g/L 30% hydrogen peroxide, 3g/L hydrogen peroxide stabilizer, 4g/L urea are mixed with pH, be warming up to 70 ℃, being placed in one,, use cold water flush then again the simultaneous oxidation of stirring 50 minutes through pretreated fenther fabric;
(3) reducing bleach: it is 7.0 reducing bleach solution that 5g/L sodium dithionite, 7g/L oxalic acid are mixed with pH, is warming up to 50 ℃, the fenther fabric behind selective oxidation is placed in one again, and reduction is 30 minutes when stirring, and uses cold water flush then;
(4) at last the fenther fabric after reducing bleach is handled is wrung out, in baking oven, dried.
Bath raio is 1: 25 in above-mentioned all processing procedures.
Embodiment 4
(1) preliminary treatment: it is 4.0 ferrous sulfate pretreatment solution that 6g/L ferrous sulfate, 3g/L penetrant m, 4g/L citric acid are mixed with pH, be warming up to 40 ℃, again being placed in one through the wetting fenther fabric of warm water, reaction is 20 minutes when stirring, then, in 60 ℃ hot water, clean 10min;
(2) selective oxidation: it is 8.0 selective oxidation solution that 15g/L 30% hydrogen peroxide, 4g/L hydrogen peroxide stabilizer, 5g/L urea are mixed with pH, be warming up to 60 ℃, being placed in one,, use cold water flush then again the simultaneous oxidation of stirring 40 minutes through pretreated fenther fabric;
(3) reducing bleach: it is 6.0 reducing bleach solution that 6g/L sodium dithionite, 8g/L oxalic acid are mixed with pH, is warming up to 40 ℃, the fenther fabric behind selective oxidation is placed in one again, and reductase 12 is 0 minute when stirring, and uses cold water flush then;
(4) at last the fenther fabric after reducing bleach is handled is wrung out, in baking oven, dried.
Bath raio is 1: 25 in above-mentioned all processing procedures.
Table 1 is whiteness and the loss of strength test result of above embodiment.
Table 1. whiteness and loss of strength test result
| Embodiment | Whiteness | The loss of strength rate |
| 1 | 63.4 | 5.7％ |
| 2 | 64.9 | 7.1％ |
| 3 | 65.7 | 9.6％ |
| 4 | 65.1 | 8.4％ |
Fenther fabric whiteness after the present invention handles can reach about 65, loss of strength is below 10%, and the conventional bleaching method is handled fenther fabric, whiteness can only reach 50, loss of strength is but more than 30%, so this law not only can effectively be removed the pigment on the feather, and can significantly reduce damage and destruction to feather fiber.
Claims (4)
1. the method for bleaching of a fenther fabric is characterized in that bleaching process is as follows:
(1) preliminary treatment: it is 4.0～6.0 ferrous sulfate pretreatment solution that 3～6g/L ferrous sulfate, 1～3g/L bleeding agent, 2～4g/L citric acid are mixed with pH, be warming up to 40～60 ℃, again being placed in one through the wetting fenther fabric of warm water, reaction is 20～40 minutes when stirring, then, in 60～75 ℃ hot water, clean 10～25min;
(2) selective oxidation: it is 8.0～10.0 selective oxidation solution that 10～15g/L, 30% hydrogen peroxide, 2～4g/L hydrogen peroxide stabilizer, 3～5g/L urea are mixed with pH, be warming up to 60～80 ℃, again being placed in one through pretreated fenther fabric, the simultaneous oxidation of stirring 40～60 minutes, use cold water flush then;
(3) reducing bleach: it is 6.0～8.0 reducing bleach solution that 3～6g/L sodium dithionite, 6～8g/L oxalic acid are mixed with pH, be warming up to 40～60 ℃, the fenther fabric behind selective oxidation is placed in one, reductase 12 is 0～40 minute when stirring, and uses cold water flush then again;
(4) fenther fabric after reducing bleach is handled is wrung out, in baking oven, dried.
2. the method for bleaching of a kind of fenther fabric according to claim 1 is characterized in that in the described step preliminary treatment, and it is 4.0～6.0 ferrous sulfate pretreatment solution that 3～6g/L ferrous sulfate, 1～3g/L bleeding agent, 2～4g/L citric acid are mixed with pH.
3. the method for bleaching of a kind of fenther fabric according to claim 1 and 2 is characterized in that bleeding agent is JFC or T or Tx or M.
4. according to the method for bleaching of each described a kind of fenther fabric of claim 1 to 3, it is characterized in that bath raio is 1: 25 in above-mentioned all processing procedures.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100362342A CN100352993C (en) | 2005-07-29 | 2005-07-29 | Bleaching method of fenther fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100362342A CN100352993C (en) | 2005-07-29 | 2005-07-29 | Bleaching method of fenther fabric |
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| CN1718906A CN1718906A (en) | 2006-01-11 |
| CN100352993C true CN100352993C (en) | 2007-12-05 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360736C (en) * | 2006-01-18 | 2008-01-09 | 孙雪保 | Fast decorizing and whitening method of color feather and down |
| CN100999865B (en) * | 2006-12-29 | 2010-05-19 | 安徽大学 | Bleaching method of whole black feather |
| CN101858033B (en) * | 2010-06-04 | 2012-08-22 | 上海里奥纤维企业发展有限公司 | Fiber bleaching method |
| CN102634971A (en) * | 2012-05-03 | 2012-08-15 | 新疆大学 | One-bath two-stage decoloring process for colored cashmere and auxiliaries |
| CN102720052B (en) * | 2012-07-02 | 2014-07-02 | 北京泛博化学股份有限公司 | Method for bleaching black feathers and adopted bleaching agent, bleaching auxiliary and bleacher |
| CN102817227B (en) * | 2012-08-14 | 2014-07-02 | 安徽舒城县翰文运动用品有限责任公司 | Feather decolorization treatment process |
| CN102975453A (en) * | 2012-12-19 | 2013-03-20 | 上海三川塑料有限公司 | Environment-friendly type high-temperature-resistant PVC (polyvinyl chloride) stiff composite cloth and production process for same |
| CN104294577B (en) * | 2013-07-16 | 2016-03-09 | 威海市锐达羽毛制品有限公司 | A kind of method for bleaching of coloured pinaculum of badminton |
| CN104294613B (en) * | 2014-08-08 | 2019-08-30 | 广东羽威农业集团有限公司 | A kind of pure white antibacterial down feather of high-loft and preparation method thereof |
| CN105369585B (en) * | 2014-08-25 | 2017-09-01 | 江苏欣隆羽绒有限公司 | A kind of coloured eider down decolouring method of whitening |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381641A (en) * | 2002-05-18 | 2002-11-27 | 青海雪舟三绒集团 | Method for decolouring yak hair |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381641A (en) * | 2002-05-18 | 2002-11-27 | 青海雪舟三绒集团 | Method for decolouring yak hair |
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Assignee: Guangdong Jealousy (International) Dress Co., Ltd. Assignor: South China University of Technology Contract fulfillment period: 2008.1.26 to 2013.1.25 contract change Contract record no.: 2009440000396 Denomination of invention: Bleaching method of fenther fabric Granted publication date: 20071205 License type: Exclusive license Record date: 2009.5.21 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.1.26 TO 2013.1.25; CHANGE OF CONTRACT Name of requester: GUANGDONG JIALISI( INTERNATIONAL ) CUSTOME CO., LT Effective date: 20090521 |
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Granted publication date: 20071205 Termination date: 20130729 |