CN1125788A - Biological degumming technology of hemp phloem - Google Patents
Biological degumming technology of hemp phloem Download PDFInfo
- Publication number
- CN1125788A CN1125788A CN 94114280 CN94114280A CN1125788A CN 1125788 A CN1125788 A CN 1125788A CN 94114280 CN94114280 CN 94114280 CN 94114280 A CN94114280 A CN 94114280A CN 1125788 A CN1125788 A CN 1125788A
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- hemp
- phloem
- degumming
- beam splitting
- length
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- Chemical Or Physical Treatment Of Fibers (AREA)
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Abstract
The biologically degumming technology for hemp bast includes such steps as clustering, cutting into 750-850 mm in length, retting at 21-25 deg.C for 70-74 hr, washing with water, drying, beating, and clustering again, and features low environmental pollution, high yield rate and low cost. Obtained hemp fibres with 650-750 mm in length has increased spinnability and may be used to spin high-count and -quality bast fabrics.
Description
The invention belongs in the textile industry the processing of plant material, specifically being a kind of hemp phloem forms the degumming tech technology of the long 650-750mm process of fiber that hemp ramee spinning technology needs through biological degumming.
Existing hemp degumming technology has chemical Degumming and macerates two kinds of method for makings.Chemical Degumming is used for reference the experience of ramie, with hemp soda boiling at high temperature, makes pectin etc. be dissolved in alkali lye and washes and produce degummed ramie for spinning; Macerate method for making and be hemp original stem in bubbly water system, bast is separated with wooden part be convenient to bast and peel off, or hemp phloem is carried out low grade handle, all there is the defective irregular, that process of fiber is disorderly of coming unstuck in these two kinds of Degumming methods.The degummed ramie of chemical Degumming through after the ramie stripes process of fiber that forms of each procedure arrangement back short, contain assorted high, bring a lot of difficulties to spinning process.So spinning count red wandering between 10-16Nm always for a long time, it is very big to improve the number difficulty again, and becomes indexs such as sliver is done, brute force to be difficult to adapt to weave needs.
The objective of the invention is to seek a kind of Cannabis sativa L. bast degumming craft, hemp phloem is come unstuck evenly, make that arrangement back is formed comes unstuck not exclusively that numb process of fiber stretches, fineness is even, and length is between 650-750mm, make it to adapt to hemp ramee spinning technology requirement (hemp ramee spinning technology the applicant has also applied for patent simultaneously), spinning high-count, high-quality hempen fibre improve raw material availability, reduce cost, and further improve the flax spinning technology.
Mechanism of the present invention and technical scheme are: according to the textile technology needs, hemp phloem is cut into 750-850mm length to be soaked in the solid carbon dioxide, pectic substance is broken down into water-soluble better simply material under the effect of biology enzyme, system time and water temperature are macerated in control, make the hemp single fiber in the process of not exclusively coming unstuck, form the technology bundle fiber under the remaining colloid effect, thereby improve the spinnability of hemp.Its technological process is: hemp phloem is cut length, the system of macerating, washing, drying, scutching, beam splitting through beam splitting successively, last packaging and warehousing.Further introduce the present invention below:
Stack by the place of production, kind, maturity period, grade classification purchase back, hemp phloem market.Before dropping into Degumming Procedures, to cut length through artificial beam splitting.The purpose of beam splitting is that its length of sorted hemp phloem is cut off by every section 750-850mm with the hemp phloem classification of different qualities.Hemp after the cut-out is bundled into every the fiber crops of 0.5kg bundle, and a same roughly the same section hemp phloem is adorned the pond respectively and macerated system.Since hemp place of production kind, growing environment, harvest time difference, single fiber character, pectin content, content of lignin are all variant in the hemp phloem, therefore required time is incomplete same in macerating the system process, so should be in the hemp beam splitting, note when adorning the pond respectively controlling water temperature and macerating the system time, to grasp degumming degree.In general, microorganism that can decompose pectin matter is breeding rapidly about 22-25 ℃, and the present invention macerates the system water temperature and is controlled at 21 °～25 ℃ scopes, produces the large number of biological enzyme in the reproductive process, and the long strand of pectin substance is cleaved under the effect of enzyme.Thereby form comparatively simple as materials such as organic acid, carbohydrates, after washing, drying the fiber crops of coming unstuck, macerate the system time and be controlled at 70-74 hour scope.For well, powerful 220～240N can reach the long division degree of 650-750mm 448Nm to its degumming degree after scutching is handled with yellowish-white, and brute force is advisable about 150N.
Scutching can be carried out on homemade, import beater or self-control beater.Under the machinery strike effect of scutching mechanism, make the fiber crops of coming unstuck of adhesion fluffy, also remaining lignin, numb skin etc. are removed, what formation was suitable for spinning stretches the uniform scutched line of fineness.Scutched line is through beam splitting, every bundle 110-130g, and last packaging and warehousing is for the spinning use.
Existing process for chemical degumming of hemp is beaten fine, oven dry back formation degummed ramie then at hemp phloem soda boiling after washing on stamping device.Fiber disorder in the degummed ramie, fiber is straight to be suitable for spinning and must to draw back by force through the card wire effect in order to make, and fibre damage this moment is serious, forms a large amount of short fibers, forms fiber crops grain, numb knot, slubbing in the later stage spinning process, causes evenness fault, brute force is irregular.
Because the technology difference, the row yielding of the present invention and chemical degumming technique is widely different.It is 70% that the present invention makes the scutched line row yielding by hemp phloem, and the chemical Degumming degummed ramie only is 50% to circle comb ramie stripes row yielding, and its row yielding improves 20%.Biological degumming technique environmental pollution degree is low, and its industrial water can be used as farm manure and directly enters the farmland.And the chemical Degumming waste liquid must could discharge after sewage disposal is up to standard.The present invention simultaneously needs water temperature 21-25 ℃, and normal pressure can come unstuck, and chemical Degumming needs water temperature is controlled at more than 100 ℃, and pressure is 1.96 * 10
5More than the Pa, so the present invention is energy-conservation, and equipment investment is low, can reduce cost.
In sum, the present invention is a kind of advanced technologies that is better than existing degumming tech.The straight hemp ramee spinning raw material that can be used as of hemp process of fiber that its product 650-750mm is long.Utilize this raw material can improve hemp spinnability, can spin high-count, high-quality pure fiber crops or numb blending product, have that environmental pollution is low, energy-conservation, the advantage of small investment.Be further developing to the flax spinning technological development.
Claims (1)
1, biological degumming technology of hemp phloem, it is characterized in that: hemp phloem is cut length, the system of macerating, washing, drying, scutching, beam splitting, packaging and warehousing through beam splitting successively, it is 750-850mm that length is cut in said beam splitting, macerating the system time is controlled at 70-74 hour scope, macerate the system water temperature and be controlled at 21-25 ℃ of scope, the every bundle of scutching beam splitting weight 110-130g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94114280 CN1125788A (en) | 1994-12-31 | 1994-12-31 | Biological degumming technology of hemp phloem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94114280 CN1125788A (en) | 1994-12-31 | 1994-12-31 | Biological degumming technology of hemp phloem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1125788A true CN1125788A (en) | 1996-07-03 |
Family
ID=5037175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94114280 Pending CN1125788A (en) | 1994-12-31 | 1994-12-31 | Biological degumming technology of hemp phloem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1125788A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061388C (en) * | 1997-12-05 | 2001-01-31 | 望奎县先锋亚麻厂 | New technology for producing hemp fiber |
| CN104532364A (en) * | 2014-12-11 | 2015-04-22 | 青岛佰众化工技术有限公司 | Method for degumming hemp fiber |
-
1994
- 1994-12-31 CN CN 94114280 patent/CN1125788A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061388C (en) * | 1997-12-05 | 2001-01-31 | 望奎县先锋亚麻厂 | New technology for producing hemp fiber |
| CN104532364A (en) * | 2014-12-11 | 2015-04-22 | 青岛佰众化工技术有限公司 | Method for degumming hemp fiber |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |