CN104264234A - Silk degumming method for protecting silk quality - Google Patents
Silk degumming method for protecting silk quality Download PDFInfo
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- CN104264234A CN104264234A CN201410443963.9A CN201410443963A CN104264234A CN 104264234 A CN104264234 A CN 104264234A CN 201410443963 A CN201410443963 A CN 201410443963A CN 104264234 A CN104264234 A CN 104264234A
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- silk
- quality
- degumming
- protecting
- deionized water
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C3/00—Treatment of animal material, e.g. chemical scouring of wool
- D01C3/02—De-gumming silk
Abstract
The invention discloses a silk degumming method for protecting silk quality, and belongs to the technical field of silk. The method comprises the following steps: (1) preparing silk, and tying by using a polyester thread; (2) placing in alkali liquor, heating to 90-100 DEG,C, keeping temperature and stirring by using a glass rod, washing for 2-3 times by using deionized water; (3) placing in silk protecting liquor, standing for 15-30 min at constant temperature of 40 DEG.C, washing for 2-3 times by using deionized water; and (4) drying degummed silk to constant weight to obtain the degummed silk. Since the isoelectric point of the silk gum is acidic and the alkali can enable the silk gum to deviate from the isoelectric point, the swelling and dissolving of the silk gum are promoted, and the damage to the silk protein from the alkali liquor is reduced by adding the silk quality protecting liquor; the method has the characteristics of being simple in process, convenient to operate, high in degumming efficiency and smooth in silk quality.
Description
Technical field:
The present invention relates to silk technical field, relate in particular to a kind of Degumming Procedures for Silkworm Silk.
Background technology:
Silk is solidified by the oozy silk liquid of silk glands in silkworm body to form, by two, triangular in shape or half elliptic fibroin outsourcing silk gum forms every root silk, cross section ovalize, the content of fibroin and silk gum because of silk kind different and different, usual fibroin accounts for 75%, and silk gum accounts for 25%.
Silk gum plays a protective role to fibroin, but silk gum too much can affect the gloss of silk, color feel, quality and dyeing and printing process etc., silk gum better water-soluble, therefore is dissolvable in water in hot water and carries out degumming and refining.
The Degumming method of current silk mainly contains that acid is come unstuck, soap alkali comes unstuck, alkali comes unstuck, high-temperature high pressure water degumming method and enzyme degumming method.No matter adopt which kind of Degumming method; the damage all must removed silk gum as far as possible and fibroin is not caused damage or alleviated it; wherein enzyme degumming method and high-temperature high pressure water come unstuck to the silk quality of silk and intensity effect larger; it is utilize silk gum can violent swelling dissolving and the more stable characteristic of fibroin in alkali lye that alkali comes unstuck; whole structure is best; but alkali comes unstuck and unavoidably impacts silk, therefore, silk silk quality can be made to be adjusted to optimum state by the protectant process of silk quality.
Summary of the invention:
The object of this invention is to provide a kind of Degumming Procedures for Silkworm Silk protecting silk quality, by optimizing de-alkali additives, increasing silk quality protection technique, improving silk quality and the physical mechanical strength of silk after coming unstuck.
Above-mentioned purpose of the present invention is achieved mainly through following technical proposals:
Protect a Degumming Procedures for Silkworm Silk for silk quality, the method comprises the following steps:
(1) silk of certain mass is prepared, and good with polyester thread bolt;
(2) be placed in certain density alkali lye, be heated to 90-100 DEG C, held for some time also stirs with glass bar, spends deionized water 2-3 time;
(3) be placed in certain density silk quality protection liquid again, 40 DEG C of constant temperature leave standstill 15-30min, spend deionized water 2-3 time;
(4) silk after coming unstuck is dried to constant weight, obtain boiled silk.
Preferred as above-mentioned condition, described alkali lye is the one in sodium carbonate, sodium bicarbonate and neutral soap, and concentration is 0.05-0.08g/L.
Preferred as above-mentioned condition, the temperature retention time described in step (2) is 20-70min.
Preferred as above-mentioned condition, described silk quality protection liquid is the one in glacial acetic acid, propionic acid and n-butyric acie, and concentration is 0.03-0.07g/L.
Beneficial effect of the present invention is: by optimizing de-alkali additives, increases silk quality protection technique, obtains appropriate degumming rate, and improve silk quality and the physical mechanical strength of silk after coming unstuck, the method is simple, and easy to operate, efficiency of coming unstuck is high.
Detailed description of the invention:
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
Embodiment 1:
Get 10g silk, fasten with polyester thread, be placed in the anhydrous Na of 0.05g/L
2cO
3in the aqueous solution, in electric heating constant temperature stove, be heated to 90-100 DEG C, insulation 30min also stirs with glass bar, spends deionized water 3 times; Be placed in the glacial acetic acid silk quality protection liquid of 0.03g/L again, 40 DEG C of constant temperature leave standstill 15min, spend deionized water 3 times, preserve after being dried by silk 60 DEG C.The ultimate strength of front and back silk of coming unstuck, extension at break and elongation at break is measured with YG (B) 001A type electronic mono-fiber strength machine, the CIELAB colour space is selected with X-Rite SP60 type chromatism test instrument, measure the value of chromatism before and after natural silk degumming, after coming unstuck as calculated, silk ultimate strength storage rate is 75.1%, extension at break storage rate is 82.3%, degumming rate is 67.8%, and value of chromatism is 13.2.
Embodiment 2:
Get 10g silk, fasten with polyester thread, be placed in the NaHCO of 0.07g/L
3in solution, in electric heating constant temperature stove, be heated to 90-100 DEG C, insulation 50min also stirs with glass bar, spends deionized water 3 times; Be placed in the n-butyric acie silk quality protection liquid of 0.05g/L again, 40 DEG C of constant temperature leave standstill 25min, spend deionized water 3 times, preserve after being dried by silk 60 DEG C.The ultimate strength of front and back silk of coming unstuck, extension at break and elongation at break is measured with YG (B) 001A type electronic mono-fiber strength machine, the CIELAB colour space is selected with X-Rite SP60 type chromatism test instrument, measure the value of chromatism before and after natural silk degumming, after coming unstuck as calculated, silk ultimate strength storage rate is 73.1%, extension at break storage rate is 79.8%, degumming rate is 73.5%, and value of chromatism is 15.7.
The present invention, by optimizing de-alkali additives, increases silk quality protection technique, obtains appropriate degumming rate, makes the value of chromatism of silk low high with mechanical strength.
Claims (4)
1. protect a Degumming Procedures for Silkworm Silk for silk quality, it is characterized in that comprising the following steps:
(1) silk is prepared, and good with polyester thread bolt;
(2) be placed in alkali lye, be heated to 90-100 DEG C, insulation is also stirred with glass bar, spends deionized water 2-3 time;
(3) be placed in silk quality protection liquid again, 40 DEG C of constant temperature leave standstill 15-30min, spend deionized water 2-3 time;
(4) silk after coming unstuck is dried to constant weight, obtain boiled silk.
2. the Degumming Procedures for Silkworm Silk of protection silk quality according to claim 1, is characterized in that: described alkali lye is the one in sodium carbonate, sodium bicarbonate and neutral soap, and concentration is 0.05-0.08g/L.
3. the Degumming Procedures for Silkworm Silk of protection silk quality according to claim 1, is characterized in that: the temperature retention time described in step (2) is 20-70min.
4. the Degumming Procedures for Silkworm Silk of protection silk quality according to claim 1, is characterized in that: described silk quality protection liquid is the one in glacial acetic acid, propionic acid and n-butyric acie, and concentration is 0.03-0.07g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443963.9A CN104264234A (en) | 2014-09-03 | 2014-09-03 | Silk degumming method for protecting silk quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443963.9A CN104264234A (en) | 2014-09-03 | 2014-09-03 | Silk degumming method for protecting silk quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104264234A true CN104264234A (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410443963.9A Pending CN104264234A (en) | 2014-09-03 | 2014-09-03 | Silk degumming method for protecting silk quality |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435765A (en) * | 2016-12-12 | 2017-02-22 | 广西江缘茧丝绸有限公司 | Silk degumming method |
| CN106435764A (en) * | 2016-12-07 | 2017-02-22 | 广西凯喜雅丝绸有限公司 | Silk degumming method |
| CN106676642A (en) * | 2016-12-12 | 2017-05-17 | 苏州大学 | Silk degumming/scouring agent, application and treatment method for degumming waste liquid |
| CN108385383A (en) * | 2018-02-07 | 2018-08-10 | 嘉兴市桑田新材料科技有限公司 | A kind of silk is scouringed and bleaching degumming tech |
| CN112401598A (en) * | 2020-10-27 | 2021-02-26 | 广西时宜农业科技有限公司 | Preparation method of silk quilt |
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| CN1376676A (en) * | 2002-04-05 | 2002-10-30 | 周福康 | Process for extracting silk extract from silkworm cocoon or silk |
| CN1730731A (en) * | 2005-08-05 | 2006-02-08 | 于清春 | Pod discharging, bleaching process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435764A (en) * | 2016-12-07 | 2017-02-22 | 广西凯喜雅丝绸有限公司 | Silk degumming method |
| CN106435765A (en) * | 2016-12-12 | 2017-02-22 | 广西江缘茧丝绸有限公司 | Silk degumming method |
| CN106676642A (en) * | 2016-12-12 | 2017-05-17 | 苏州大学 | Silk degumming/scouring agent, application and treatment method for degumming waste liquid |
| CN108385383A (en) * | 2018-02-07 | 2018-08-10 | 嘉兴市桑田新材料科技有限公司 | A kind of silk is scouringed and bleaching degumming tech |
| CN112401598A (en) * | 2020-10-27 | 2021-02-26 | 广西时宜农业科技有限公司 | Preparation method of silk quilt |
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Application publication date: 20150107 |