CN107100028A - A kind of production method of refined cotton linter - Google Patents
A kind of production method of refined cotton linter Download PDFInfo
- Publication number
- CN107100028A CN107100028A CN201710314042.6A CN201710314042A CN107100028A CN 107100028 A CN107100028 A CN 107100028A CN 201710314042 A CN201710314042 A CN 201710314042A CN 107100028 A CN107100028 A CN 107100028A
- Authority
- CN
- China
- Prior art keywords
- cotton linter
- production method
- boiling
- refined
- minutes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1052—Controlling the process
Abstract
The invention discloses a kind of production method of refined cotton linter, the production method of the cotton linter comprises the following steps：The raw material gross cottonseed of cotton linter is subjected to removal of impurities, except stone, dedusting, removing impurities gross cottonseed is obtained；Resulting removing impurities gross cottonseed feeding delinter is subjected to the impurity content dialled suede and control cotton linter, low miscellaneous cotton linter is obtained；By obtained low miscellaneous cotton linter with 30 45 DEG C, concentration be 10 15% sodium hydroxide heat alkali liquid pre-preg 10 30 minutes, be then placed in in spiral extruder, filtering off excessive alkali lye；Obtained cotton linter is fitted into boiling vessel and carries out boiling 24 hours；Cotton linter after boiling is put into special dewatering apparatus thereof and is dehydrated, is then bleached, nitrocotton sour water acid treatment, drier is put into afterwards 40 60 minutes, obtains refined cotton linter.Cotton linter gray scale produced by the present invention is low, impurity content is few, high-quality and Mass Distribution uniform, is conducive to improving the utilization rate of cotton linter, improves product quality, be conducive to developing a circular economy, great application prospect.
Description
Technical field
The present invention relates to Cotton Production technical field, more particularly a kind of production method of refined cotton linter.
Background technology
China abounds with cotton, cotton linter resource very abundant, and cotton linter refers to remain in that portion outside cotton seed hulls after ginning
Divide fiber.Cotton linter fiber length is shorter than Lint fiber, but maturity is quite, therefore content of cellulose is high, be national defence, weaving,
Chemical fibre, papermaking etc. are light, the important source material of chemical industry, are light industry, army's industry, chemical industry, the grand strategy thing of medical industry
Money.China abounds with cotton, cotton linter resource very abundant.Such as by the whole stripping suedes of the cottonseed after cotton ginning, gained short flannel can suitable skin
The 15%~20% of cotton total output, so cotton linter is a very important cellulose resource.
But existing cotton linter utilization rate is not high, the production technology with it is relevant, so the production of refined short flannel
Method is always individual research topic well, is conducive to the sustainable development of resource and develops a circular economy.
The content of the invention
The technical problems to be solved by the invention are to overcome the defect of prior art there is provided a kind of production of refined cotton linter
Method, can obtain the few cotton linter of high-quality, impurity content, improve the utilization rate of cotton linter, be conducive to developing a circular economy.
The solution of the present invention is as follows：A kind of production method of refined cotton linter, the production method of the cotton linter include with
Lower step：
（1）The raw material gross cottonseed of cotton linter is subjected to removal of impurities, except stone, dedusting, removing impurities gross cottonseed is obtained；
（2）Resulting removing impurities gross cottonseed feeding delinter is subjected to the impurity content dialled suede and control cotton linter, obtains low miscellaneous
Cotton linter；
（3）With 30-45 DEG C, concentration it is 10-15% sodium hydroxides heat alkali liquid pre-preg 10-30 minutes by obtained low miscellaneous cotton linter,
It is then placed in and uses in spiral extruder, filters off excessive alkali lye；
（4）By step（3）Obtained cotton linter, which is fitted into boiling vessel, carries out boiling 2-4 hours；
（5）Cotton linter after boiling is put into special dewatering apparatus thereof and is dehydrated, is then bleached, nitrocotton sour water acid treatment, it
After be put into drier 40-60 minutes, obtain refined cotton linter.
A kind of production method of above-mentioned refined cotton linter, the step（4）110-150 DEG C of boiling temperature during middle boiling,
Cooking pressure is 0.2-0.5MPa.
A kind of production method of above-mentioned refined cotton linter, the step（5）Middle 20-35 DEG C of bleaching temperature, bleaching time
60-100 minutes.
A kind of production method of above-mentioned refined cotton linter, the step（5）The pH value of middle acid treatment is 1.0-6.0.
Beneficial effects of the present invention：Cotton linter gray scale produced by the present invention is low, impurity content is few, high-quality and Mass Distribution
Uniformly, be conducive to improving the utilization rate of cotton linter, improve product quality, be conducive to sustainable development and the development circulation warp of economy
Ji, great application prospect.
Embodiment
With reference to embodiment, the present invention will be further described.
Embodiment 1
A kind of production method of refined cotton linter, the production method of the cotton linter comprises the following steps：（1）By the original of cotton linter
Expect that gross cottonseed carries out removal of impurities, except stone, dedusting, obtain removing impurities gross cottonseed；（2）Resulting removing impurities gross cottonseed feeding delinter is entered
Row dials suede and controls the impurity content of cotton linter, obtains low miscellaneous cotton linter；（3）By obtained low miscellaneous cotton linter with 30 DEG C, concentration
For 10% sodium hydroxide heat alkali liquid pre-preg 10 minutes, it is then placed in and uses in spiral extruder, filters off excessive alkali lye；（4）By step
（3）Obtained cotton linter, which is fitted into boiling vessel, carries out boiling 2 hours, 110 DEG C of boiling temperature, and cooking pressure is 0.2MPa, then
Take out；（5）Cotton linter after boiling is put into special dewatering apparatus thereof and is dehydrated, is then bleached, nitrocotton sour water acid treatment, is floated
20 DEG C of Bai Wendu, bleaching time 60 minutes, the pH value of acid treatment is 1.0, drier is put into afterwards 40 minutes, is refined
Cotton linter.
Embodiment 2
A kind of production method of refined cotton linter, the production method of the cotton linter comprises the following steps：（1）By the original of cotton linter
Expect that gross cottonseed carries out removal of impurities, except stone, dedusting, obtain removing impurities gross cottonseed；（2）Resulting removing impurities gross cottonseed feeding delinter is entered
Row dials suede and controls the impurity content of cotton linter, obtains low miscellaneous cotton linter；（3）By obtained low miscellaneous cotton linter with 45 DEG C, concentration
For 15% sodium hydroxide heat alkali liquid pre-preg 30 minutes, it is then placed in and uses in spiral extruder, filters off excessive alkali lye；（4）By step
（3）Obtained cotton linter, which is fitted into boiling vessel, carries out boiling 4 hours, 150 DEG C of boiling temperature, and cooking pressure is 0.5MPa, then
Take out；（5）Cotton linter after boiling is put into special dewatering apparatus thereof and is dehydrated, is then bleached, nitrocotton sour water acid treatment, is floated
35 DEG C of Bai Wendu, bleaching time 100 minutes, the pH value of acid treatment is 6.0, drier is put into afterwards 60 minutes, obtains essence
Cotton linter processed.
Embodiment 3
A kind of production method of refined cotton linter, the production method of the cotton linter comprises the following steps：（1）By the original of cotton linter
Expect that gross cottonseed carries out removal of impurities, except stone, dedusting, obtain removing impurities gross cottonseed；（2）Resulting removing impurities gross cottonseed feeding delinter is entered
Row dials suede and controls the impurity content of cotton linter, obtains low miscellaneous cotton linter；（3）By obtained low miscellaneous cotton linter with 40 DEG C, concentration
For 15% sodium hydroxide heat alkali liquid pre-preg 25 minutes, it is then placed in and uses in spiral extruder, filters off excessive alkali lye；（4）By step
（3）Obtained cotton linter, which is fitted into boiling vessel, carries out boiling 3 hours, 125 DEG C of boiling temperature, and cooking pressure is 0.3MPa, then
Take out；（5）Cotton linter after boiling is put into special dewatering apparatus thereof and is dehydrated, is then bleached, nitrocotton sour water acid treatment, is floated
30 DEG C of Bai Wendu, bleaching time 80 minutes, the pH value of acid treatment is 4.0, drier is put into afterwards 50 minutes, is refined
Cotton linter.
Although the embodiment to the present invention gives detailed description and illustrated above, it should be noted that
We can carry out various equivalent changes and modification according to the conception of the present invention to above-mentioned embodiment, and the function produced by it is made
, all should be within protection scope of the present invention during with the spirit still covered without departing from specification.
Claims (4)
1. a kind of production method of refined cotton linter, it is characterised in that the production method of the cotton linter comprises the following steps：
（1）The raw material gross cottonseed of cotton linter is subjected to removal of impurities, except stone, dedusting, removing impurities gross cottonseed is obtained；
（2）Resulting removing impurities gross cottonseed feeding delinter is subjected to the impurity content dialled suede and control cotton linter, obtains low miscellaneous
Cotton linter；
（3）With 30-45 DEG C, concentration it is 10-15% sodium hydroxides heat alkali liquid pre-preg 10-30 minutes by obtained low miscellaneous cotton linter,
It is then placed in and uses in spiral extruder, filters off excessive alkali lye；
（4）By step（3）Obtained cotton linter, which is fitted into boiling vessel, carries out boiling 2-4 hours；
（5）Cotton linter after boiling is put into special dewatering apparatus thereof and is dehydrated, is then bleached, nitrocotton sour water acid treatment, it
After be put into drier 40-60 minutes, obtain refined cotton linter.
2. a kind of production method of refined cotton linter according to claim 1, it is characterised in that：The step（4）It is middle to steam
110-150 DEG C of boiling temperature when boiling, cooking pressure is 0.2-0.5MPa.
3. a kind of production method of refined cotton linter according to claim 1, it is characterised in that：The step（5）Middle drift
Bai Wendu 20-35 DEG C, bleaching time 60-100 minutes.
4. a kind of production method of refined cotton linter according to claim 1, it is characterised in that：The step（5）Middle acid
The pH value of processing is 1.0-6.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710314042.6A CN107100028A (en) | 2017-05-05 | 2017-05-05 | A kind of production method of refined cotton linter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710314042.6A CN107100028A (en) | 2017-05-05 | 2017-05-05 | A kind of production method of refined cotton linter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100028A true CN107100028A (en) | 2017-08-29 |
Family
ID=59657698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710314042.6A Withdrawn CN107100028A (en) | 2017-05-05 | 2017-05-05 | A kind of production method of refined cotton linter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100028A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453314A (en) * | 2019-08-16 | 2019-11-15 | 晨光生物科技集团喀什有限公司 | A kind of production method recycling cotton linter in native suede |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3737369A (en) * | 1972-03-13 | 1973-06-05 | Process Evaluation Devel | Alkaline digestion of a mixture of cotton linters and fibrous vegetable material and product thereof |
| US20070151680A1 (en) * | 2002-06-26 | 2007-07-05 | Borregaard Chemcell | Treatment of cellulose during bleaching with agent capable of reducing carbonyl groups |
| CN101130886A (en) * | 2006-08-26 | 2008-02-27 | 山东海龙股份有限公司 | High polymerization degree cotton pulp and method for making the same |
| CN102321926A (en) * | 2011-08-05 | 2012-01-18 | 四川北方硝化棉股份有限公司 | Production method of refined cotton |
| CN103103841A (en) * | 2012-12-31 | 2013-05-15 | 晨光生物科技集团股份有限公司 | Manufacturing method for high-quality cotton linter |
| CN103266357A (en) * | 2013-04-23 | 2013-08-28 | 杨金福 | Production technology of refining cottons |
-
2017
- 2017-05-05 CN CN201710314042.6A patent/CN107100028A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3737369A (en) * | 1972-03-13 | 1973-06-05 | Process Evaluation Devel | Alkaline digestion of a mixture of cotton linters and fibrous vegetable material and product thereof |
| US20070151680A1 (en) * | 2002-06-26 | 2007-07-05 | Borregaard Chemcell | Treatment of cellulose during bleaching with agent capable of reducing carbonyl groups |
| CN101130886A (en) * | 2006-08-26 | 2008-02-27 | 山东海龙股份有限公司 | High polymerization degree cotton pulp and method for making the same |
| CN102321926A (en) * | 2011-08-05 | 2012-01-18 | 四川北方硝化棉股份有限公司 | Production method of refined cotton |
| CN103103841A (en) * | 2012-12-31 | 2013-05-15 | 晨光生物科技集团股份有限公司 | Manufacturing method for high-quality cotton linter |
| CN103266357A (en) * | 2013-04-23 | 2013-08-28 | 杨金福 | Production technology of refining cottons |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453314A (en) * | 2019-08-16 | 2019-11-15 | 晨光生物科技集团喀什有限公司 | A kind of production method recycling cotton linter in native suede |
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Application publication date: 20170829 |
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