CN1300408C - Natural green cocoon filament microwave grafting colour fixing method - Google Patents
Natural green cocoon filament microwave grafting colour fixing method Download PDFInfo
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- CN1300408C CN1300408C CNB2005100111880A CN200510011188A CN1300408C CN 1300408 C CN1300408 C CN 1300408C CN B2005100111880 A CNB2005100111880 A CN B2005100111880A CN 200510011188 A CN200510011188 A CN 200510011188A CN 1300408 C CN1300408 C CN 1300408C
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Abstract
The present invention relates to a color fixing method for natural green cocoon fibers by grafting and using microwaves. In the method, microwaves are used to induce a catalytic esterification reaction, so that pigment molecules of natural green cocoon fibers lose water solubility; simultaneously, sericin is fixed on fibroin in an innermost layer by graft esterification, so that natural green cocoon fibers are not decolorized during washing process and have greatly improved color fastness. The method has the advantages of simplicity, practicality, high color fixation speed and low cost.
Description
Technical field
The present invention relates to chemical technology field, particularly relate to a kind of natural green cocoon filament microwave grafting colour fixing method.
Background technology
Silk garment is liked because of its consumers in general of being subjected to comfortable and easy to wear, and colored silk clothes majority is to use dyeing, and the natural colorful silk is few.Along with development of biology, can produce chromatic cocoon through the silkworm of biotechnology transformation.Wherein, green cocoon is more, is beautiful yellow green.But because the pigment of green cocoon mainly is the flavonoids molecule, it is water-soluble bigger, and mainly is distributed in (silk gum comes off easily) on the silk gum, and therefore, these colors are very easily washed off by aqueous surfactant solution, it is worth greatly reduces.Therefore, it is significant to study its color-fixing method.Up till now for this reason, the research of relevant natural green cocoon filament fixation, particularly microwave grafting colour fixing method of Shang Weijian report.
Summary of the invention
The object of the present invention is to provide a kind of natural green cocoon filament microwave grafting colour fixing method, the color of the natural silk of handling with this method does not come off when soaping, and silk does not fade after washing, and the COLOR FASTNESS of color improves.
The color of natural green silk mainly is the color of flavonoids dye molecule, contains more hydroxyl on its molecule, so it is water-soluble bigger, is washed off easily.If with its grafting esterification, it is water-soluble that it is lost with micromolecular compound that contains carboxyl (as acetate) etc., its COLOR FASTNESS will improve.
Simultaneously, because pigment molecule mainly is distributed on the silk gum, and silk gum can come off in washing process gradually, so, if silk gum is consolidated silk gum on the fibroin of nexine more by the grafting esterification with polybasic carboxylic acid (as citric acid, disodium EDTA etc.), color relation can not come off in washing process, and COLOR FASTNESS will increase substantially.
Microwave chemical is the novel field that develops rapidly in recent years.Under the effect of microwave, various types of organic and inorganic chemical reactions have all obtained acceleration.Esterification be microwave chemical research the earliest, a most ripe reaction.Under the effect of microwave, the speed of esterification has improved tens even hundred times.The present invention's microwave induction catalytic esterification.
Based on above-mentioned theory, the present invention realizes by one of following method:
1, natural green silk soaks duty 2～3min in glacial acetic acid, extracts after the taking-up, and be that 2450MHz, power are esterification 5～8min under the microwave action of 200～600W in frequency then, the acetic acid that the water flush away is unnecessary, drying.
2, natural green silk, putting into quality is 5%～15% dihydric phosphate and 10%～20% citric acid mixed solution than concentration, or quality is in 5%～8% dihydric phosphate, 3%～7% the phosphoric acid and 10%～20% citric acid mixed solution than concentration, soak 5～10min, extract after the taking-up, be that 2450MHz, power are esterification 8～12min under the microwave action of 200～600W in frequency then, it is dry to wash the back again with water; Perhaps:
The natural green silk, put into quality and be 10% disodium ethylene diamine tetraacetate than concentration, soak 5～10min, add 10% sodium dihydrogen phosphate then, soak to take out behind 2～3min and extract, in frequency is that 2450MHz, power are that esterification 8～12min. washes drying then with water under the microwave action of 200～600W.
In the said method, dihydric phosphate is sodium dihydrogen phosphate or potassium dihydrogen phosphate etc.
Faint variation has taken place in the chromophoric group microenvironment after the pigment molecular esterification, through the color of the natural green cocoon filament of fixation treatment slight intensification is arranged.
Advantage of the present invention is, and is colour-fast in washing process through the green silk of microwave induced fixation treatment, simultaneously, should method is simple, fixation speed is fast, and cost is low.
The specific embodiment
Embodiment 1:
Natural green silk 200 gram soaks duty 2min in glacial acetic acid, extracts after the taking-up, and be that 2450MHz, power are esterification 5min under the microwave action of 200W in frequency then, the acetic acid that the water flush away is unnecessary, drying; Under 90 ℃ of neopelexes (washing powder), to wash 30 minutes, degree of fixation reaches 100%.
Embodiment 2:
Natural green silk 300 gram soaks duty 3min in glacial acetic acid, extracts after the taking-up, and be that 2450MHz, power are esterification 8min under the microwave action of 600W in frequency then, the acetic acid that the water flush away is unnecessary, drying; Under 90 ℃ of neopelexes (washing powder), to wash 30 minutes, degree of fixation reaches 100%.
Embodiment 3:
Natural green silk 200 gram soaks duty 3min in glacial acetic acid, extracts after the taking-up, and be that 2450MHz, power are esterification 6min under the microwave action of 400W in frequency then, the acetic acid that the water flush away is unnecessary, drying; Under 90 ℃ of neopelexes (washing powder), to wash 30 minutes, degree of fixation reaches 100%.
Embodiment 4:
Natural green silk 200 grams, putting into quality is 5% sodium dihydrogen phosphate and 10% citric acid mixed solution than concentration, soaks 5min, extracts after the taking-up, be that 2450MHz, power are esterification 8min under the microwave action of 600W in frequency then, it is dry to wash the back again with water; Under 90 ℃ of neopelexes (washing powder), to wash 30 minutes, degree of fixation reaches 100%.
Embodiment 5:
Natural green silk 400 grams, putting into quality is 15% potassium dihydrogen phosphate and 20% citric acid mixed solution than concentration, soaks 10min, extracts after the taking-up, be that 2450MHz, power are esterification 12min under the microwave action of 200W in frequency then, it is dry to wash the back again with water; Under 90 ℃ of neopelexes (washing powder), to wash 30 minutes, degree of fixation reaches 100%.
Embodiment 6:
Natural green silk 300 grams, putting into quality is 5% sodium dihydrogen phosphate, 3% phosphoric acid and 10% citric acid mixed solution than concentration, soaks 5min, extracts after the taking-up, be that 2450MHz, power are esterification 8min under the microwave action of 600W in frequency then, it is dry to wash the back again with water; Under 90 ℃ of neopelexes (washing powder), to wash 30 minutes, degree of fixation reaches 100%.
Embodiment 7:
Natural green silk 500 grams, putting into quality is 8% potassium dihydrogen phosphate, 7% phosphoric acid and 20% citric acid mixed solution than concentration, soaks 10min, extracts after the taking-up, be that 2450MHz, power are esterification 12min under the microwave action of 200W in frequency then, it is dry to wash the back again with water; Under 90 ℃ of neopelexes (washing powder), to wash 30 minutes, degree of fixation reaches 100%.
Embodiment 8:
Natural green silk 200 gram, putting into quality is 10% disodium ethylene diamine tetraacetate than concentration, soaks 5min, add 10% sodium dihydrogen phosphate then, soaking to take out behind the 2min and extract, is that 2450MHz, power are that esterification 8min. washes drying then with water under the microwave action of 600W in frequency; Under 90 ℃ of neopelexes (washing powder), to wash 30 minutes, degree of fixation reaches 100%.
Embodiment 9:
Natural green silk 300 gram, putting into quality is 10% disodium ethylene diamine tetraacetate than concentration, soaks 8min, add 10% sodium dihydrogen phosphate then, soaking to take out behind the 3min and extract, is that 2450MHz, power are that esterification 10min. washes drying then with water under the microwave action of 400W in frequency; Under 90 ℃ of neopelexes (washing powder), to wash 30 minutes, degree of fixation reaches 100%.
Embodiment 10:
Natural green silk 400 gram, putting into quality is 10% disodium ethylene diamine tetraacetate than concentration, soaks 10min, add 10% sodium dihydrogen phosphate then, soaking to take out behind the 3min and extract, is that 2450MHz, power are that esterification 12min. washes drying then with water under the microwave action of 200W in frequency; Under 90 ℃ of neopelexes (washing powder), to wash 30 minutes, degree of fixation reaches 100%.
Claims (3)
1, a kind of natural green cocoon filament microwave grafting colour fixing method is characterized in that: the natural green silk, flood 2～3min in glacial acetic acid, extract after the taking-up, be that 2450MHz, power are esterification 5～8min under the microwave action of 200～600W in frequency then, the acetic acid that the water flush away is unnecessary, drying.
2, a kind of natural green cocoon filament microwave grafting colour fixing method, it is characterized in that: the natural green silk, putting into quality is 5%～15% dihydric phosphate and 10%～20% citric acid mixed solution than concentration, or quality is in 5%～8% dihydric phosphate, 3%～7% the phosphoric acid and 10%～20% citric acid mixed solution than concentration, soak 5～10min, extract after the taking-up, be that 2450MHz, power are esterification 8～12min under the microwave action of 200～600W in frequency then, it is dry to wash the back again with water; Perhaps:
The natural green silk, put into quality and be 10% disodium ethylene diamine tetraacetate than concentration, soak 5～10min, add 10% sodium dihydrogen phosphate then, soak to take out behind 2～3min and extract, in frequency is that 2450MHz, power are that esterification 8～12min. washes drying then with water under the microwave action of 200～600W.
3, method according to claim 2 is characterized in that, dihydric phosphate is sodium dihydrogen phosphate or potassium dihydrogen phosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100111880A CN1300408C (en) | 2005-01-17 | 2005-01-17 | Natural green cocoon filament microwave grafting colour fixing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100111880A CN1300408C (en) | 2005-01-17 | 2005-01-17 | Natural green cocoon filament microwave grafting colour fixing method |
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| Publication Number | Publication Date |
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| CN1651641A CN1651641A (en) | 2005-08-10 |
| CN1300408C true CN1300408C (en) | 2007-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100111880A Expired - Fee Related CN1300408C (en) | 2005-01-17 | 2005-01-17 | Natural green cocoon filament microwave grafting colour fixing method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667176B (en) * | 2019-01-07 | 2021-08-24 | 章华海 | Preparation method of modified silk fibroin color fixing agent and application of modified silk fibroin color fixing agent in silk color fixing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04361666A (en) * | 1991-06-10 | 1992-12-15 | Toyo Bussan Kk | Processing of fiber |
| JPH0765268B2 (en) * | 1985-06-05 | 1995-07-12 | 東レ株式会社 | Method of modifying synthetic fibers |
| CN1513072A (en) * | 2001-04-04 | 2004-07-14 | 健康服饰公司 | Improved polymer-crafted cotton fibers and products |
-
2005
- 2005-01-17 CN CNB2005100111880A patent/CN1300408C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0765268B2 (en) * | 1985-06-05 | 1995-07-12 | 東レ株式会社 | Method of modifying synthetic fibers |
| JPH04361666A (en) * | 1991-06-10 | 1992-12-15 | Toyo Bussan Kk | Processing of fiber |
| CN1513072A (en) * | 2001-04-04 | 2004-07-14 | 健康服饰公司 | Improved polymer-crafted cotton fibers and products |
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|---|---|
| CN1651641A (en) | 2005-08-10 |
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