CN103147146B - A kind of preparation method of cotton linter fiber - Google Patents
A kind of preparation method of cotton linter fiber Download PDFInfo
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- CN103147146B CN103147146B CN201310079782.8A CN201310079782A CN103147146B CN 103147146 B CN103147146 B CN 103147146B CN 201310079782 A CN201310079782 A CN 201310079782A CN 103147146 B CN103147146 B CN 103147146B
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Abstract
The object of the invention is to the preparation method of openly a kind of cotton linter fiber, slurrying that it comprises the steps: (1): → boiling → bleaching → washing of getting the raw materials ready; (2) spinning: viscose glue pulp → leaching, pressure, dispersion alkali cellulose experienced → yellow → solution mixing → filtration → deaeration → spinning technique; Compared with prior art, effectively utilized by cotton linter fiber, spinning is also weaved, and cotton linter fiber is soft smooth, and sucting wet air permeability is strong, and pro-skin pastes skin, and environmental protection can natural degradation, realizes object of the present invention.
Description
Technical field
The present invention relates to a kind of preparation method of fiber, particularly a kind of preparation method of cotton linter fiber.
Background technology
Along with the progress of society, people are to higher expectation of having improved the quality of living, and market is to textiles demand also more and more personalization, functionalization, health care.New type of health fiber develops by leaps and bounds in China at a terrific speed, although also there is incomplete place on stream in some fiber, but believe along with production technology constantly improve and ripe, its performance will make moderate progress, and its product has boundless development space.From market comsupton trend, people to the pursuit of bedding function by warming-type to health transition.
Shi Chanmian big country of China, gined cotton annual production is up to 70,600 ten thousand tons, and cotton linter also has hundreds of thousands ton, is very important high-quality long fibered raw material resource.
Cotton linter (cotton linter), as the term suggests be that a part of cotton fiber shorter than gined cotton.Divide by textile industry standard, the following length of fine fleece 16mm, the following length of long-staple cotton 20mm is short flannel.
Cotton linter is that a part of fiber that unginned cotton is close to outside cotton seed hulls after stripping suede is separated gined cotton, and the length due to it only has about the 10%-50% of gined cotton, is therefore referred to as cotton linter.Though cotton linter fiber is short, its maturity is low unlike gined cotton, and content of cellulose is high, is the quality raw materials of the industry such as papermaking, chemical fibre, military project and cellulose derivative.
Cotton linter is mainly made up of cellulose, and its cellulose can reach more than 98%, is very pure and excellent fibrous raw material, but a lot of cotton linter is all dropped after raw cotton is plucked at present.
Therefore, the special preparation method needing a kind of cotton linter fiber, to solve above-mentioned existing Problems existing.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of cotton linter fiber, for the deficiencies in the prior art, effectively utilized by cotton linter fiber, spinning is also weaved, and cotton linter fiber is soft smooth, and sucting wet air permeability is strong, and pro-skin pastes skin, and environmental protection can natural degradation.
Technical problem solved by the invention can realize by the following technical solutions:
A preparation method for cotton linter fiber, is characterized in that, it comprises the steps:
(1) slurrying: → boiling → bleaching → washing of getting the raw materials ready;
(2) spinning: viscose glue pulp → leaching, pressure, dispersion alkali cellulose experienced → yellow → solution mixing → filtration → deaeration → spinning technique.
In one embodiment of the invention, described in the purification yield of getting the raw materials ready be one suede 83-90%, two road suede 70-80%, after getting the raw materials ready, raw material percentage of impurity is < 6%.
In one embodiment of the invention, described boiling and bleaching are adopt the method for buying cake to dissolve and a small amount of impurity residual on bleaching cotton linter by steaming drift agent.
Further, described steaming drift agent is hydrogen peroxide.
In one embodiment of the invention, the temperature of described boiling and bleaching is 120 DEG C, and pressure is 4.5kg/cm
2, the time is 160-180min.
In one embodiment of the invention, the time of described washing is 30 min, and rinse dosage is 30m
3/ ton is starched.
In one embodiment of the invention, described spinning, for be dissolved in NMMO solvent by cotton linter dissolving pulp, after removal of impurities is filtered, to adopt dry-jet wet spinning process to carry out spinning, then carries out washing, dry, curling and cut-out.
Further, the content of described NMMO solvent is 50-90wt%, and content of cellulose is the 10-38wt% of cotton linter dissolving pulp gross weight, and the content of water is 0-20wt%.
In one embodiment of the invention, the size changing rate of described cotton linter fiber is warp-wise-3.0%, broadwise-3.0%; Brute force is >=250N; Dyefastness is washable (variable color, staining) >=3 grades; Rub resistance is >=3 grades; Content of formaldehyde is < 75mg/kg.
The preparation method of cotton linter fiber of the present invention, compared with prior art, effectively utilizes cotton linter fiber, and spinning is also weaved, and cotton linter fiber is soft smooth, and sucting wet air permeability is strong, and pro-skin pastes skin, and environmental protection can natural degradation, realizes object of the present invention.
The detailed description and obtaining that feature of the present invention can consult the better embodiment of below this case is well understood to.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reach object and effect is easy to understand, below in conjunction with specifically setting forth the present invention further.
The preparation method of cotton linter fiber of the present invention, it comprises the steps:
(1) slurrying: → boiling → bleaching → washing of getting the raw materials ready;
(2) spinning: viscose glue pulp → leaching, pressure, dispersion alkali cellulose experienced → yellow → solution mixing → filtration → deaeration → spinning technique.
In the present invention, described in the purification yield of getting the raw materials ready be one suede 83-90%, two road suede 70-80%, after getting the raw materials ready, raw material percentage of impurity is < 6%.
In the present invention, described boiling and bleaching are adopt the method for buying cake to dissolve and a small amount of impurity residual on bleaching cotton linter by steaming drift agent; Described steaming drift agent is hydrogen peroxide.
In the present invention, the temperature of described boiling and bleaching is 120 DEG C, and pressure is 4.5kg/cm
2, the time is 160-180min.
In the present invention, the time of described washing is 30 min, and rinse dosage is 30m
3/ ton is starched.
In the present invention, described spinning, for be dissolved in NMMO solvent by cotton linter dissolving pulp, after removal of impurities is filtered, to adopt dry-jet wet spinning process to carry out spinning, then carries out washing, dry, curling and cut-out.
The content of described NMMO solvent is 50-90wt%, and content of cellulose is the 10-38wt% of cotton linter dissolving pulp gross weight, and the content of water is 0-20wt%.
In the present invention, the size changing rate of described cotton linter fiber is warp-wise-3.0%, broadwise-3.0%; Brute force is >=250N; Dyefastness is washable (variable color, staining) >=3 grades; Rub resistance is >=3 grades; Content of formaldehyde is < 75mg/kg.
Embodiment 1
Processing step:
(1) slurrying: → boiling → bleaching → washing of getting the raw materials ready;
(2) spinning: viscose glue pulp → leaching, pressure, dispersion alkali cellulose experienced → yellow → solution mixing → filtration → deaeration → spinning technique.
Described purification yield of getting the raw materials ready is one suede 83%, two road suede 70%, and after getting the raw materials ready, raw material percentage of impurity is < 6%.
Described boiling and bleaching are adopt the method for buying cake to dissolve and a small amount of impurity residual on bleaching cotton linter by steaming drift agent; Described steaming drift agent is hydrogen peroxide.
The temperature of described boiling and bleaching is 120 DEG C, and pressure is 4.5kg/cm
2, the time is 160min.
The time of described washing is 30 min, and rinse dosage is 30m
3/ ton is starched.
Described spinning, for be dissolved in NMMO solvent by cotton linter dissolving pulp, after removal of impurities is filtered, to adopt dry-jet wet spinning process to carry out spinning, then carries out washing, dry, curling and cut-out.
The content of described NMMO solvent is 50wt%, and content of cellulose is the 38wt% of cotton linter dissolving pulp gross weight, and the content of water is 12wt%.
The size changing rate of the cotton linter fiber prepared is warp-wise-3.0%, broadwise-3.0%; Brute force is >=250N; Dyefastness is washable (variable color, staining) >=3 grades; Rub resistance is >=3 grades; Content of formaldehyde is < 75mg/kg.
Embodiment 2
Processing step:
(1) slurrying: → boiling → bleaching → washing of getting the raw materials ready;
(2) spinning: viscose glue pulp → leaching, pressure, dispersion alkali cellulose experienced → yellow → solution mixing → filtration → deaeration → spinning technique.
Described purification yield of getting the raw materials ready is one suede 90%, two road suede 80%, and after getting the raw materials ready, raw material percentage of impurity is < 6%.
Described boiling and bleaching are adopt the method for buying cake to dissolve and a small amount of impurity residual on bleaching cotton linter by steaming drift agent; Described steaming drift agent is hydrogen peroxide.
The temperature of described boiling and bleaching is 120 DEG C, and pressure is 4.5kg/cm
2, the time is 180min.
The time of described washing is 30 min, and rinse dosage is 30m
3/ ton is starched.
Described spinning, for be dissolved in NMMO solvent by cotton linter dissolving pulp, after removal of impurities is filtered, to adopt dry-jet wet spinning process to carry out spinning, then carries out washing, dry, curling and cut-out.
The content of described NMMO solvent is 90wt%, and content of cellulose is the 10wt% of cotton linter dissolving pulp gross weight.
The size changing rate of the cotton linter fiber prepared is warp-wise-3.0%, broadwise-3.0%; Brute force is >=250N; Dyefastness is washable (variable color, staining) >=3 grades; Rub resistance is >=3 grades; Content of formaldehyde is < 75mg/kg.
Embodiment 3
Processing step:
(1) slurrying: → boiling → bleaching → washing of getting the raw materials ready;
(2) spinning: viscose glue pulp → leaching, pressure, dispersion alkali cellulose experienced → yellow → solution mixing → filtration → deaeration → spinning technique.
Described purification yield of getting the raw materials ready is one suede 86%, two road suede 75%, and after getting the raw materials ready, raw material percentage of impurity is < 6%.
Described boiling and bleaching are adopt the method for buying cake to dissolve and a small amount of impurity residual on bleaching cotton linter by steaming drift agent; Described steaming drift agent is hydrogen peroxide.
The temperature of described boiling and bleaching is 120 DEG C, and pressure is 4.5kg/cm
2, the time is 170min.
The time of described washing is 30 min, and rinse dosage is 30m
3/ ton is starched.
Described spinning, for be dissolved in NMMO solvent by cotton linter dissolving pulp, after removal of impurities is filtered, to adopt dry-jet wet spinning process to carry out spinning, then carries out washing, dry, curling and cut-out.
The content of described NMMO solvent is 60wt%, and content of cellulose is the 20wt% of cotton linter dissolving pulp gross weight, and the content of water is 20wt%.
The size changing rate of the cotton linter fiber prepared is warp-wise-3.0%, broadwise-3.0%; Brute force is >=250N; Dyefastness is washable (variable color, staining) >=3 grades; Rub resistance is >=3 grades; Content of formaldehyde is < 75mg/kg.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. a preparation method for cotton linter fiber, is characterized in that, it comprises the steps:
(1) slurrying: → boiling → bleaching → washing of getting the raw materials ready;
(2) spinning: viscose glue pulp → leaching, pressure, dispersion alkali cellulose experienced → yellow → solution mixing → filtration → deaeration → spinning technique;
Described boiling and bleaching are adopt the method for buying cake to dissolve and a small amount of impurity residual on bleaching cotton linter by steaming drift agent;
Described spinning, for be dissolved in NMMO solvent by cotton linter dissolving pulp, after removal of impurities is filtered, to adopt dry-jet wet spinning process to carry out spinning, then carries out washing, dry, curling and cut-out; Described purification yield of getting the raw materials ready is one suede 83-90%, two road suede 70-80%, and after getting the raw materials ready, raw material percentage of impurity is < 6%; The temperature of described boiling and bleaching is 120 DEG C, and pressure is 4.5kg/cm
2, the time is 160-180min; The time of described washing is 30 min, and rinse dosage is 30m
3/ ton is starched; The content of described NMMO solvent is 50-90wt%, and content of cellulose is the 10-38wt% of cotton linter dissolving pulp gross weight, and the content of water is 0-20wt%.
2. the preparation method of cotton linter fiber as claimed in claim 1, it is characterized in that, the size changing rate of described cotton linter fiber is warp-wise-3.0%, broadwise-3.0%; Brute force is >=250N; Dyefastness is washable (variable color, staining) >=3 grades; Rub resistance is >=3 grades; Content of formaldehyde is < 75mg/kg.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079782.8A CN103147146B (en) | 2013-03-13 | 2013-03-13 | A kind of preparation method of cotton linter fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079782.8A CN103147146B (en) | 2013-03-13 | 2013-03-13 | A kind of preparation method of cotton linter fiber |
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| CN103147146A CN103147146A (en) | 2013-06-12 |
| CN103147146B true CN103147146B (en) | 2015-07-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107254718A (en) * | 2017-05-05 | 2017-10-17 | 东至县鸿棉工贸有限责任公司 | A kind of short flannel pulping process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1796444A (en) * | 2004-12-28 | 2006-07-05 | 中国科学院化学研究所 | Method for preparing functional material of regenerated cellulose |
| CN101130884A (en) * | 2006-08-26 | 2008-02-27 | 山东海龙股份有限公司 | Method for preparing viscose fiber using cotton stalk |
| CN101705560A (en) * | 2008-08-19 | 2010-05-12 | 江苏金太阳卧室用品有限公司 | Warp direction viscose fabric and preparation method thereof |
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2013
- 2013-03-13 CN CN201310079782.8A patent/CN103147146B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1796444A (en) * | 2004-12-28 | 2006-07-05 | 中国科学院化学研究所 | Method for preparing functional material of regenerated cellulose |
| CN101130884A (en) * | 2006-08-26 | 2008-02-27 | 山东海龙股份有限公司 | Method for preparing viscose fiber using cotton stalk |
| CN101705560A (en) * | 2008-08-19 | 2010-05-12 | 江苏金太阳卧室用品有限公司 | Warp direction viscose fabric and preparation method thereof |
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