CN101323987B - Rapid degumming method of trees bast fiber - Google Patents
Rapid degumming method of trees bast fiber Download PDFInfo
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- CN101323987B CN101323987B CN2008100299111A CN200810029911A CN101323987B CN 101323987 B CN101323987 B CN 101323987B CN 2008100299111 A CN2008100299111 A CN 2008100299111A CN 200810029911 A CN200810029911 A CN 200810029911A CN 101323987 B CN101323987 B CN 101323987B
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Abstract
The invention discloses a quick degumming method of tree bast fibers, which belongs to the degumming techniques of vegetable fibers, and mainly has the following technical points: (1) tree barks are denuded from tree trucks or tree branches, and old skins on the outer surface are removed; (2) the tree barks are placed into a soaking solution at the temperature of 15 to 65 DEG C and soaked for 0.5to 2 hours, and the soaking solution is an aqueous solution that contains 1 to 8 units of sodium hydroxide, 3 to 10 units of an osmotic agent and 0.5 to 3 units of a chelated dispersing agent per 1000units of the soaking solution; (3) the tree barks are drained and then tightly packed; (4) the tree barks are placed into steam and processed by heat for 0.5 to 2 hours at the temperature of 100 to 150 DEG C; (5) the tree barks after heat processing are taken out and placed into a squeezing machine so as to be squeezed, and pectin that is squeezed out is rinsed by water; (6) squeezed tree bark fibers are placed into an aqueous solution with the acid concentration of 0.5 to 5 percent and soaked for 5 to 30 minutes; (7) the tree bark fibers that are soaked in the acid solution are bleached anddried, thus finishing the degumming. The quick degumming method of the tree bast fibers is simple, easy and convenient, has the advantages of less water, alkali and energy consumption, and can be usedfor the degumming processing of the bast fibers.
Description
Technical field
The present invention relates to a kind of bast fiber degumming technology, more particularly, it relates to a kind of quick degumming method of tree bast fiber.
Background technology
At present, coming unstuck of bast fiber handled can be divided into chemical steaming method and biological enzyme, the chemical steaming method need consume more alkali and water, and the about 500～800T of waste water that its average fiber per ton produces exists water treatment complexity, deficiency that environmental pollution is big; Bioanalysis is to utilize the decomposition of microorganism to pectin, reach the purpose of coming unstuck, its advantage is environmental protection, the soda acid amount of using seldom, the waste water that produces is also few, it is the focus technology of studying at present, but because Screening of Bioflocculant-producing Bacteria difficulty, also be difficult at present industrial use promotional value, and, the time of bioanalysis is also longer, and effect is lower, as Chinese patent CN200810025684.5 (publication number CN101215718, open day 2008.07.09) disclosed " a kind of biological enzyme degumming method of tree bast fiber ", be exactly to handle through acidicenzym liquid earlier, or handle and reach the purpose that tree bast comes unstuck through alkaline enzyme liquid, its needed time needs about about 10 hours basically.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned deficiency at prior art, provides a kind of fast and convenient, the quick degumming method of the tree bast fiber that water consumption consumption alkaline consumption can be few.
Technical scheme of the present invention is such: a kind of quick degumming method of tree bast fiber comprises the steps: that (1) is from removing the Lao Pi of outer surface after trunk or branch peel bark; (2) soak of bark being put into 15～65 ℃ soaked 0.5～2 hour, and soak is the aqueous solution that contains 1～8 ‰ NaOH, 3 ‰～1% bleeding agent and 0.5 ‰～3 ‰ chelated dispersants; (3) the bark draining control after will soaking packs after doing; (4) seal-packed bark was put into the steam heat treated 0.5～2 hour, temperature is 100～150 ℃; (5) bark after the heat treated is taken out, put into the extruder extruding, water rinses out the pectin that squeezes out; (6) will soak 5～30 minutes through the aqueous solution that the bark fiber after the extruding is put into acid concentration 1～8 ‰; (7) will promptly finish through bark fiber drying after bleaching of acid soak and come unstuck.
In the quick degumming method of above-mentioned a kind of tree bast fiber, the bleeding agent described in the step (2) is selected NEORATE/NA-30H or NEORATE/CM-20Z for use; Described chelated dispersants is NEOCRYSTAL150 or NEOCRYSTAL170HZ.
In the quick degumming method of above-mentioned a kind of tree bast fiber, step (6) stirs when soaking simultaneously.
In the quick degumming method of above-mentioned a kind of tree bast fiber, stir simultaneously during step (7) bleaching.
The present invention compared with prior art has following advantage:
(1) key of the present invention is that the bark after soaking is carried out heat treated under the state of sealing, and it is few to have reached water consumption, and the waste water of fiber per ton has only 50～80T, reduces water consumption more than 70% than traditional chemical cooking process, and is energy-conservation more than 30%.
(2) speed is fast, and normal condition can be finished the process of coming unstuck in following 5 hours, helps continuous suitability for industrialized production.
The specific embodiment
Below in conjunction with embodiment the present invention is described in further detail, but does not constitute any limitation of the invention.
Embodiment 1
(1) get skin: get the living eucalyptus of speed of firm felling, by hand or peeling machine bark is separated with trunk, the Lao Pi that then bark is put on the sander the bark outer surface removes, and avoids during separation the wooden fibrage of hard on the tree bar is brought into as far as possible.
(2) soak of bark being put into 15～20 ℃ soaked 2 hours, and soak is the aqueous solution that contains 8 ‰ NaOH, 5 ‰ bleeding agents and 2 ‰ chelated dispersants; The NEORATE/NA-30H that bleeding agent selects daily use chemicals KCC to produce; The NEOCRYSTAL170HZ that chelated dispersants selects daily use chemicals KCC to produce.
(3) behind the bark drain well after will soaking, wrap up compacting, sealing by every bag 5KG with the PP film.
(4) seal-packed bark bag was put into the steam heat treated 2 hours, vapor (steam) temperature is 120 ℃.
(5) bark after the heat treated is taken out, put into the extruder extruding, the bark after the extruding is placed on water rinses out pectin on the screen cloth.
(6) will soak 30 minutes through the aqueous solution that the bark fiber after the extruding is put into sulfuric acid concentration 1 ‰, at the uniform velocity stir simultaneously.
(7) will put into Bellmer bleaching through the fibrous bark of acid soak and handle 30 minutes, and at the uniform velocity stir simultaneously, the bleaching chlorine dosage be 1～5% of bone dry fiber amount routinely, after bleaching is handled tree bast fiber is pulled out to dry or airing is promptly finished and come unstuck.
Tree bast fiber after coming unstuck is handled through operations such as health, tanning, combings, can form the tree bast fiber of weaving usefulness, and the performance of fiber is shown in Table 1.
Embodiment 2
(1) get skin: get the mixing branch that urban afforestation has just been pruned, by hand or peeling machine bark is separated with trunk, the Lao Pi that then bark is put on the sander the bark outer surface removes, and avoids during separation the wooden fibrage of hard on the tree bar is brought into as far as possible.
(2) soak of bark being put into 30～35 ℃ soaked 0.5 hour, and soak is the aqueous solution that contains 2 ‰ NaOH, 3 ‰ bleeding agents and 1 ‰ chelated dispersants; The NEORATE/NA-30H that bleeding agent selects daily use chemicals KCC to produce; The NEOCRYSTAL150 that chelated dispersants selects daily use chemicals KCC to produce.
(3) behind the bark drain well after will soaking, wrap up compacting, sealing by every bag 5KG with the PP film.
(4) seal-packed bark bag was put into the steam heat treated 0.5 hour, vapor (steam) temperature is 100 ℃.
(5) bark after the heat treated is taken out, put into the extruder extruding, the bark after the extruding is placed on water rinses out pectin on the screen cloth.
(6) will soak 20 minutes through the aqueous solution that the bark fiber after the extruding is put into sulfuric acid concentration 3 ‰, at the uniform velocity stir simultaneously.
(7) will put into Bellmer bleaching through the fibrous bark of acid soak and handle 30 minutes, and at the uniform velocity stir simultaneously, the bleaching chlorine dosage be 1～5% of bone dry fiber amount routinely, after bleaching is handled tree bast fiber is pulled out to dry or airing is promptly finished and come unstuck.
Tree bast fiber after coming unstuck is handled through operations such as health, tanning, combings, can form the tree bast fiber of weaving usefulness, and the performance of fiber is shown in Table 1.
Embodiment 3
(1) get skin: get the oleander of firm felling, by hand or peeling machine bark is separated with trunk, the Lao Pi that then bark is put on the sander the bark outer surface removes, and avoids during separation the wooden fibrage of hard on the tree bar is brought into as far as possible.
(2) soak of bark being put into 40～45 ℃ soaked 2 hours, and soak is the aqueous solution that contains 5 ‰ NaOH, 6 ‰ bleeding agents and 3 ‰ chelated dispersants; The NEORATE/CM-20Z that bleeding agent selects daily use chemicals KCC to produce; The NEOCRYSTAL170HZ that chelated dispersants selects daily use chemicals KCC to produce.
(3) behind the bark drain well after will soaking, wrap up compacting, sealing by every bag 5KG with the PP film.
(4) seal-packed bark bag was put into the steam heat treated 1.5 hours, vapor (steam) temperature is 140 ℃.
(5) bark after the heat treated is taken out, put into the extruder extruding, the bark after the extruding is placed on water rinses out pectin on the screen cloth.
(6) will soak 5 minutes through the aqueous solution that the bark fiber after the extruding is put into sulfuric acid concentration 8 ‰, at the uniform velocity stir simultaneously.
(7) will put into Bellmer bleaching through the fibrous bark of acid soak and handle 30 minutes, and at the uniform velocity stir simultaneously, the bleaching chlorine dosage be 1～5% of bone dry fiber amount routinely, after bleaching is handled tree bast fiber is pulled out to dry or airing is promptly finished and come unstuck.
Tree bast fiber after coming unstuck is handled through operations such as health, tanning, combings, can form the tree bast fiber of weaving usefulness, and the performance of fiber is shown in Table 1.
Embodiment 4
(1) get skin: get the banyan of firm felling, by hand or peeling machine bark is separated with trunk, the Lao Pi that then bark is put on the sander the bark outer surface removes, and avoids during separation the wooden fibrage of hard on the tree bar is brought into as far as possible.
(2) soak of bark being put into 60～65 ℃ soaked 2 hours, and soak is the aqueous solution that contains 8 ‰ NaOH, 1% bleeding agent and 1 ‰ chelated dispersants; The NEORATE/NA-30H that bleeding agent selects daily use chemicals KCC to produce; The NEOCRYSTAL150 that chelated dispersants selects daily use chemicals KCC to produce.
(3) behind the bark drain well after will soaking, with stainless cylinder of steel by every jar of canned compacting of 10KG, sealing.
(4) seal-packed bark jar was put into the steam heat treated 1.5 hours, vapor (steam) temperature is 150 ℃.
(5) bark after the heat treated is taken out, put into the extruder extruding, the bark after the extruding is placed on water rinses out pectin on the screen cloth.
(6) will soak 30 minutes through the aqueous solution that the bark fiber after the extruding is put into sulfuric acid concentration 1～8 ‰, at the uniform velocity stir simultaneously.
(7) will put into Bellmer bleaching through the fibrous bark of acid soak and handle 30 minutes, and at the uniform velocity stir simultaneously, the bleaching chlorine dosage be 1～5% of bone dry fiber amount routinely, after bleaching is handled tree bast fiber is pulled out to dry or airing is promptly finished and come unstuck.
Tree bast fiber after coming unstuck is handled through operations such as health, tanning, combings, can form the tree bast fiber of weaving usefulness, and the performance of fiber is shown in Table 1.
Embodiment 5
(1) get skin: get the mulberry tree of firm felling, by hand or peeling machine bark is separated with trunk, the Lao Pi that then bark is put on the sander the bark outer surface removes, and avoids during separation the wooden fibrage of hard on the tree bar is brought into as far as possible.
(2) soak of bark being put into 30～35 ℃ soaked 1 hour, and soak is the aqueous solution that contains 1 ‰ NaOH, 5 ‰ bleeding agents and 1 ‰ chelated dispersants; The NEORATE/CM-20Z that bleeding agent selects daily use chemicals KCC to produce; The NEOCRYSTAL150 that chelated dispersants selects daily use chemicals KCC to produce.
(3) behind the bark drain well after will soaking, with stainless cylinder of steel by every jar of canned compacting of 30KG, sealing.
(4) seal-packed bark jar was put into the steam heat treated 1 hour, vapor (steam) temperature is 120 ℃.
(5) bark after the heat treated is taken out, put into the extruder extruding, the bark after the extruding is placed on water rinses out pectin on the screen cloth.
(6) will soak 20 minutes through the aqueous solution that the bark fiber after the extruding is put into sulfuric acid concentration 1%, at the uniform velocity stir simultaneously.
(7) will put into Bellmer bleaching through the fibrous bark of acid soak and handle 30 minutes, and at the uniform velocity stir simultaneously, the bleaching chlorine dosage be 1～5% of bone dry fiber amount routinely, after bleaching is handled tree bast fiber is pulled out to dry or airing is promptly finished and come unstuck.
Tree bast fiber after coming unstuck is handled through operations such as health, tanning, combings, can form the tree bast fiber of weaving usefulness, and the performance of fiber is shown in Table 1.
Embodiment 6
(1) get skin: get the willow branch of firm felling, by hand or peeling machine bark is separated with trunk, the Lao Pi that then bark is put on the sander the bark outer surface removes, and avoids during separation the wooden fibrage of hard on the tree bar is brought into as far as possible.
(2) soak of bark being put into 15～20 ℃ soaked 40 minutes, and soak is the aqueous solution that contains 3 ‰ NaOH, 3 ‰ bleeding agents and 0.5 ‰ chelated dispersants; The NEORATE/NA-30H that bleeding agent selects daily use chemicals KCC to produce; The NEOCRYSTAL150 that chelated dispersants selects daily use chemicals KCC to produce.
(3) behind the bark drain well after will soaking, with stainless cylinder of steel by every jar of canned compacting of 60KG, sealing.
(4) seal-packed bark jar was put into the steam heat treated 1 hour, vapor (steam) temperature is 120 ℃.
(5) bark after the heat treated is taken out, put into the extruder extruding, the bark after the extruding is placed on water rinses out pectin on the screen cloth.
(6) will soak 12 minutes through the aqueous solution that the bark fiber after the extruding is put into sulfuric acid concentration 4%, at the uniform velocity stir simultaneously.
(7) will put into Bellmer bleaching through the fibrous bark of acid soak and handle 30 minutes, and at the uniform velocity stir simultaneously, the bleaching chlorine dosage be 1～5% of bone dry fiber amount routinely, after bleaching is handled tree bast fiber is pulled out to dry or airing is promptly finished and come unstuck.
Tree bast fiber after coming unstuck is handled through operations such as health, tanning, combings, can form the tree bast fiber of weaving usefulness, and the performance of fiber is shown in Table 1.
Table 1 tree bast fiber performance table
Claims (3)
1. the quick degumming method of a tree bast fiber is characterized in that comprising the steps: that (1) is from removing the Lao Pi of outer surface after trunk or branch peel bark; (2) soak of bark being put into 15～65 ℃ soaked 0.5～2 hour, and soak is the aqueous solution that contains 1～8 ‰ NaOH, 3 ‰～1% bleeding agent and 0.5 ‰～3 ‰ chelated dispersants; (3) the bark draining control after will soaking packs after doing; (4) seal-packed bark was put into the steam heat treated 0.5～2 hour, temperature is 100～150 ℃; (5) bark after the heat treated is taken out, put into the extruder extruding, water rinses out the pectin that squeezes out; (6) will soak 5～30 minutes through the aqueous solution that the bark fiber after the extruding is put into acid concentration 1～8 ‰; (7) will promptly finish through bark fiber drying after bleaching of acid soak and come unstuck; Bleeding agent described in the step (2) is selected NEORATE/NA-30H or NEORATE/CM-20Z for use, and chelated dispersants is NEOCRYSTAL150 or NEOCRYSTAL170HZ.
2. the quick degumming method of a kind of tree bast fiber according to claim 1 is characterized in that, step (6) stirs when soaking simultaneously.
3. the quick degumming method of a kind of tree bast fiber according to claim 1 is characterized in that, step (7) stirs when bleaching simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100299111A CN101323987B (en) | 2008-08-01 | 2008-08-01 | Rapid degumming method of trees bast fiber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100299111A CN101323987B (en) | 2008-08-01 | 2008-08-01 | Rapid degumming method of trees bast fiber |
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| CN101323987A CN101323987A (en) | 2008-12-17 |
| CN101323987B true CN101323987B (en) | 2010-06-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102001121B (en) * | 2010-10-20 | 2012-08-22 | 饶显生 | Method for producing bark mixed medium-density fiber plate |
| CN108044758B (en) * | 2017-11-17 | 2018-12-28 | 中国农业科学院麻类研究所 | A kind of resource utilization method of waste agronomic crop bast raw material |
| CN112342814B (en) * | 2020-11-19 | 2023-03-31 | 横县东糖糖业有限公司纸业分公司 | Method for producing high-strength natural-color paper pulp by taking eucalyptus bark as raw material |
| CN114182410A (en) * | 2021-12-17 | 2022-03-15 | 高阳县温润纺织品制造有限公司 | Preparation method of bacteriostatic stain-resistant easy-to-clean towel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415790A (en) * | 2002-12-13 | 2003-05-07 | 东华大学 | Method for preparing bamboo fiber from bamboo |
| CN101008109A (en) * | 2007-01-24 | 2007-08-01 | 浙江理工大学 | Quick deguming method for cotton stalk peel fiber |
| CN101200812A (en) * | 2007-11-23 | 2008-06-18 | 刘俊巧 | Method for manufacturing viscose fiber by using tree bast |
| CN101215718A (en) * | 2008-01-08 | 2008-07-09 | 刘俊巧 | Biological enzyme degumming method for tree bast fibre |
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- 2008-08-01 CN CN2008100299111A patent/CN101323987B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415790A (en) * | 2002-12-13 | 2003-05-07 | 东华大学 | Method for preparing bamboo fiber from bamboo |
| CN101008109A (en) * | 2007-01-24 | 2007-08-01 | 浙江理工大学 | Quick deguming method for cotton stalk peel fiber |
| CN101200812A (en) * | 2007-11-23 | 2008-06-18 | 刘俊巧 | Method for manufacturing viscose fiber by using tree bast |
| CN101215718A (en) * | 2008-01-08 | 2008-07-09 | 刘俊巧 | Biological enzyme degumming method for tree bast fibre |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2007-126809A 2007.05.24 |
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