CN1629367A - Ramee rapid glue-removing production process - Google Patents
Ramee rapid glue-removing production process Download PDFInfo
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- CN1629367A CN1629367A CN 200310124145 CN200310124145A CN1629367A CN 1629367 A CN1629367 A CN 1629367A CN 200310124145 CN200310124145 CN 200310124145 CN 200310124145 A CN200310124145 A CN 200310124145A CN 1629367 A CN1629367 A CN 1629367A
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Abstract
Disclosed is a method for removing glue from ramee rapidly, which comprises the steps of, steeping raw ramee with aqueous solution of sulfuric acid, flushing immersed raw ramee with clean water, steeping the ramee with aqueous solution of NaOH, charging adjuvant, sodium tripolyphosphate, boiling in water.
Description
Technical field
The present invention relates to a kind of production method of China grass degumming.
Background technology
At present, the production method of China grass degumming has: a cooking method is that pickling → one boils → (3 hours and add NaOH); Two cooking methods are that pickling → one boils (1.5 hours) → two and boils (2 hours and add NaOH); The deficiency that above-mentioned two kinds of methods exist is: the production cycle is long, and only boiling-off is generally at 3～5 hours; Energy consumption is big, need to consume a large amount of coal, electricity, water, and labor strength is big; Seriously polluted, the waste liquid NaOH content of discharge is more than 5g/L; The cost height, about 2800～3600 yuan of product cost per ton.And one to boil production method immature because of technology, and unstable product quality generally seldom adopts.
Summary of the invention
The object of the present invention is to provide the ramie fast degumming production method that a kind of energy consumption is low, pollution is little, can reduce production costs, enhance productivity.
Technical scheme of the present invention may further comprise the steps:
1. pickling: with concentration is that 1.8～2.2g/L aqueous sulfuric acid soaks ramie raw ramie (being called for short raw ramie down), and bath raio is a raw ramie: aqueous sulfuric acid is 1: 10～14 (weight), and soaking temperature is 55～65 ℃, and the pickling time is 1～2 hour;
2. clean: with the soaked raw ramie of flushing with clean water, to pH=7, drain well;
3. caustic dip: the raw ramie that soaks drain well with the NaOH aqueous solution normal temperature of concentration 30～70g/L down; Bath raio is a raw ramie: the NaOH aqueous solution=1: 10～12 (weight), and 5～10 minutes caustic dip time, soak and drain alkali lye after good;
4. boiling-off: the fiber crops material with 3. step is handled well, add boiling-off auxiliary agent, sodium phosphate trimer and water boiling-off together, the consumption of boiling-off auxiliary agent is 2～3% (weight) of raw ramie; The consumption of sodium phosphate trimer is 1～2% (weight) of raw ramie; Amount of water is a raw ramie: water=1: 8～10 (weight), and boiling-off is 30～60 minutes under high pressure 0.18～0.21Mpa;
5. fiber crops material flushing with clean water two times of 4. step being handled well;
6. technology is routinely struck fiber crops, is floated pickling, oil supply, oven dry gets final product.
Step of the present invention 3. in, draining the alkali lye time is 4～6 hours.
Step of the present invention 4. in, but 100 ± 2 ℃ of boiling-offs of normal pressure 60～90 minutes before the pressurization boiling-off;
The 5. middle clear water that cleans the fiber crops material of step of the present invention is preferably hot water.
Said boiling-off auxiliary agent is ramie rapid chemical boil-off assistant X-903, degumming auxiliary agent for ramee FD-ZT02 (spinning chemical company in Beijing produces).
The technological process of production of the present invention is:
Raw ramie is separated handle → pickling → cleaning → caustic dip → boiling-off → beat and strike → float pickling → oil supply → oven dry
The molecular structure that pickling procedure of the present invention makes ramie be soluble in acid changes; The caustic dip operation makes NaOH fully be absorbed by flax fibre, and along with the increase of the time of draining, NaOH produces swollen in flax fibre, reach the fiber initial gross separation to decompose the ramie colloid, no longer add NaOH during boiling-off, only adding assistant and sodium phosphate trimer can reach the effect of fast degumming.
In production practices, can be according to kind, harvest time, the glue-line content situation of raw ramie, in the technological parameter that the present invention allows, appropriateness is adjusted, and every index of its product quality all can reach requirement promulgated by the ministries or commissions of the Central Government.
Compared with prior art, the present invention has following effect:
1. shorten the boiling-off time, traditional handicraft boiling-off total time is 3～5 hours, the present invention only 30～90 minutes;
2. reduce and pollute, more than the traditional handicraft discharging NaOH concentration 5g/L, the NaOH concentration of the present invention's discharging is below the 2g/L;
3. energy savings, with traditional handicraft than one ton of finished product of every production, the present invention economizes on coal about 2.8 tons, about electricity 200 degree, about 20 tons in water;
4. cut down finished cost, the production cost of traditional handicraft is 2800～3600 yuan/ton, and this technology is 1500～1800 yuan/ton;
5. improve fiber output ratio, traditional handicraft product fiber output ratio head fibre is 42～45%, and product fiber output ratio head fibre of the present invention is 47～50%;
6. product quality height, the product ramee number that the present invention produces improves 100～200 numbers than traditional handicraft, and spinnability improves, and can spin the garment material of 60～100 yarn counts.
The specific embodiment
Embodiment 1;
1. pickling: soak raw ramie with concentration for the 2.0g/L aqueous sulfuric acid, bath raio is a raw ramie: aqueous sulfuric acid is that 1: 12 (weight) soaks, and temperature is 55～65 ℃, and the pickling time is 2 hours;
2. clean:, to pH=7, pursue shelving drain well with the soaked raw ramie of flushing with clean water;
3. caustic dip: the fiber crops material that soaks drain well with the NaOH aqueous solution normal temperature of concentration 50g/L down; Bath raio is a raw ramie: the NaOH aqueous solution is 1: 9 (weight), 8 minutes caustic dip time, soaks good back drop buck 4 hours.
4. boiling-off:, add ramie rapid chemical boil-off assistant X-903, sodium phosphate trimer and water boiling-off together with the fiber crops material that 3. step is handled well; The consumption of X-903 is 2.5% (weight) of raw ramie, and the consumption of sodium phosphate trimer is 1.2% (weight) of raw ramie; Amount of water is a raw ramie: water=1: 10 (weight), and boiling-off is 70 minutes when 100 ± 2 ℃ of normal pressures, and boiling-off is 30 minutes under high pressure 0.18～0.21Mpa;
5. fiber crops material flushing with clean water two times of 4. step being handled well.
6. technology is routinely struck fiber crops, is floated pickling, oil supply, oven dry gets final product.
Embodiment 2:
(raw materials used fiber crops be three season fiber crops or glue-line content more than 30%)
1. pickling: soak raw ramie with concentration for the 1.8g/L aqueous sulfuric acid, bath raio is a raw ramie: aqueous sulfuric acid is that 1: 10 (weight) soaks, and temperature is 55～65 ℃, and the pickling time is 1.5 hours;
2. clean:, to pH=7, pursue shelving drain well with the soaked raw ramie of flushing with clean water;
3. caustic dip: the fiber crops material that soaks drain well with the NaOH aqueous solution normal temperature of concentration 40g/L down; Bath raio is a raw ramie: the NaOH aqueous solution is 1: 8 (weight), 6 minutes caustic dip time, soaks good back drop buck 6 hours.
4. boiling-off:, add degumming auxiliary agent for ramee FD-ZT02 (spinning chemical company in Beijing produces), sodium phosphate trimer and water boiling-off together with the fiber crops material that 3. step is handled well; The consumption of FD-ZT02 is 2% (weight) of raw ramie, and the consumption of sodium phosphate trimer is 1% (weight) of raw ramie; Amount of water is a raw ramie: water=1: 10 (weight), and boiling-off is 90 minutes under high pressure 0.18～0.21Mpa;
5. fiber crops material hot water injection two times of 4. step being handled well.
6. technology is routinely struck fiber crops, is floated pickling, oil supply, oven dry gets final product.
Embodiment 3:
(raw materials used fiber crops be two season fiber crops or glue-line content 28%～30%)
1. pickling: soak raw ramie with concentration for the 2.0g/L aqueous sulfuric acid, bath raio is a raw ramie: aqueous sulfuric acid=1: 12 (weight) soaks, and temperature is 55～65 ℃, and the pickling time is 2 hours;
2. clean:, to pH=7, pursue shelving drain well with the soaked raw ramie of flushing with clean water;
3. caustic dip: the fiber crops material that soaks drain well with the NaOH aqueous solution normal temperature of concentration 50g/L down; Bath raio is a raw ramie: the NaOH aqueous solution is 1: 9 (weight), 8 minutes caustic dip time, soaks and drains buck after good;
4. boiling-off:, add ramie rapid chemical boil-off assistant X-903, sodium phosphate trimer and water boiling-off together with the fiber crops material that 3. step is handled well; The consumption of X-903 is 2.5% (weight) of raw ramie, and the consumption of sodium phosphate trimer is 1.2% (weight) of raw ramie; Amount of water is a raw ramie: water=1: 10 (weight), and boiling-off is 60 minutes under high pressure 0.18～0.21Mpa;
5. fiber crops material flushing with clean water two times of 4. step being handled well.
6. technology is routinely struck fiber crops, is floated pickling, oil supply, oven dry gets final product.
Embodiment 4:
(raw materials used fiber crops be one season fiber crops or glue-line content 25%～28%)
1. pickling: soak raw ramie with concentration for the 2.2g/L aqueous sulfuric acid, bath raio is a raw ramie: aqueous sulfuric acid is that 1: 10 (weight) soaks, and temperature is 55～65 ℃, and the pickling time is 1.5 hours;
2. clean: with the soaked raw ramie of flushing with clean water, to pH=7, drain well;
3. caustic dip: the fiber crops material that soaks drain well with the NaOH aqueous solution normal temperature of concentration 60g/L down; Bath raio is a raw ramie: the NaOH aqueous solution is 1: 10 (weight), 10 minutes caustic dip time, soaks good back draining 4 hours.
4. boiling-off:, add degumming auxiliary agent for ramee FD-ZT02 (spinning chemical company in Beijing produces), sodium phosphate trimer and water boiling-off together with the fiber crops material that 3. step is handled well; The consumption of FD-ZT02 is 3% (weight) of raw ramie, and the consumption of sodium phosphate trimer is 1.5% (weight) of raw ramie; Amount of water is a raw ramie: water=1: 10 (weight), and boiling-off is 30 minutes under high pressure 0.18～0.21Mpa;
5. fiber crops material hot water injection two times of 4. step being handled well.
6. technology is routinely struck fiber crops, is floated pickling, oil supply, oven dry gets final product.
Claims (5)
1, a kind of ramie fast degumming production method, it is characterized in that: this method may further comprise the steps:
1. pickling: with concentration is that 1.8～2.2g/L aqueous sulfuric acid soaks raw ramie, and bath raio is a raw ramie: aqueous sulfuric acid=1: 10～14 (weight) soaks, and temperature is 55～65 ℃, and the pickling time is 1～2 hour;
2. clean: with the soaked raw ramie of flushing with clean water, to pH=7, drain well;
3. caustic dip: the raw ramie that soaks drain well with the NaOH aqueous solution normal temperature of concentration 30～70g/L down; Bath raio is a raw ramie: the NaOH aqueous solution=1: 10～12 (weight), and 5～10 minutes caustic dip time, soak and drain alkali lye after good;
4. boiling-off: the fiber crops material with 3. step is handled well, add boiling-off auxiliary agent, sodium phosphate trimer and water boiling-off together, the consumption of boiling-off auxiliary agent is 2～3% (weight) of raw ramie; The consumption of sodium phosphate trimer is 1～2% (weight) of raw ramie; Amount of water is a raw ramie: water=1: 8～10 (weight), and boiling-off is 30～60 minutes under high pressure 0.18～0.21Mpa;
5. fiber crops material flushing with clean water two times of 4. step being handled well enter down operation.
2, production method according to claim 1 is characterized in that: this method step 3. in, draining the alkali lye time is 4～6 hours.
3, production method according to claim 1 is characterized in that: said boiling-off auxiliary agent is X-903, FD-ZT02.
4, production method according to claim 1 is characterized in that: before the pressurization boiling-off 4. of this method step, but 100 ± 2 ℃ of boiling-offs of normal pressure 60～90 minutes.
5, production method according to claim 1 is characterized in that: the 5. middle clear water that cleans the fiber crops material of this method step is a hot water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310124145 CN1629367A (en) | 2003-12-20 | 2003-12-20 | Ramee rapid glue-removing production process |
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| CN 200310124145 CN1629367A (en) | 2003-12-20 | 2003-12-20 | Ramee rapid glue-removing production process |
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| CN1629367A true CN1629367A (en) | 2005-06-22 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007126809A (en) * | 2005-11-01 | 2007-05-24 | Meirong Xu | Process for extracting and preparing bast fibers, basts fibers obtained from the process, and use of these bast fibers |
| CN100430533C (en) * | 2006-01-23 | 2008-11-05 | 青岛大学 | Natural plant fibre extraction by alkali oxidation |
| CN100460574C (en) * | 2006-05-17 | 2009-02-11 | 冯海金 | Process for decompressing and debonding cannabis |
| CN101165230B (en) * | 2007-06-07 | 2010-08-18 | 浙江大学 | Method for preparing cotton triangle yellow grass fibre for weaving |
| CN101037808B (en) * | 2005-11-01 | 2011-04-20 | 徐梅荣 | Extraction and preparation method for the ramie hemp |
| CN103132153A (en) * | 2013-03-18 | 2013-06-05 | 河南舒莱卫生用品有限公司 | Preparation method and application of antibacterial ramie fiber |
| CN104630906A (en) * | 2015-01-28 | 2015-05-20 | 四川玉竹麻业有限公司 | Ramie degumming boiling-out liquid |
-
2003
- 2003-12-20 CN CN 200310124145 patent/CN1629367A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007126809A (en) * | 2005-11-01 | 2007-05-24 | Meirong Xu | Process for extracting and preparing bast fibers, basts fibers obtained from the process, and use of these bast fibers |
| CN101037808B (en) * | 2005-11-01 | 2011-04-20 | 徐梅荣 | Extraction and preparation method for the ramie hemp |
| CN100430533C (en) * | 2006-01-23 | 2008-11-05 | 青岛大学 | Natural plant fibre extraction by alkali oxidation |
| CN100460574C (en) * | 2006-05-17 | 2009-02-11 | 冯海金 | Process for decompressing and debonding cannabis |
| CN101165230B (en) * | 2007-06-07 | 2010-08-18 | 浙江大学 | Method for preparing cotton triangle yellow grass fibre for weaving |
| CN103132153A (en) * | 2013-03-18 | 2013-06-05 | 河南舒莱卫生用品有限公司 | Preparation method and application of antibacterial ramie fiber |
| CN103132153B (en) * | 2013-03-18 | 2015-04-01 | 河南舒莱卫生用品有限公司 | Preparation method and application of antibacterial ramie fiber |
| CN104630906A (en) * | 2015-01-28 | 2015-05-20 | 四川玉竹麻业有限公司 | Ramie degumming boiling-out liquid |
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