CN108252141A - A kind of preparation method of Lin's grass fiber and its wet laid nonwoven fabric - Google Patents
A kind of preparation method of Lin's grass fiber and its wet laid nonwoven fabric Download PDFInfo
- Publication number
- CN108252141A CN108252141A CN201810008912.1A CN201810008912A CN108252141A CN 108252141 A CN108252141 A CN 108252141A CN 201810008912 A CN201810008912 A CN 201810008912A CN 108252141 A CN108252141 A CN 108252141A
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- CN
- China
- Prior art keywords
- lin
- grass
- grass fiber
- fiber
- preparation
- Prior art date
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- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 101
- 244000025254 Cannabis sativa Species 0.000 title claims abstract description 94
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000009835 boiling Methods 0.000 claims abstract description 10
- 230000007062 hydrolysis Effects 0.000 claims abstract description 9
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 9
- 238000004061 bleaching Methods 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- 238000005360 mashing Methods 0.000 claims abstract description 4
- 230000006855 networking Effects 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 16
- 239000010902 straw Substances 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 6
- 150000004056 anthraquinones Chemical class 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 230000029087 digestion Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 2
- 239000004744 fabric Substances 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 4
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 3
- 239000000796 flavoring agent Substances 0.000 abstract description 3
- 235000019634 flavors Nutrition 0.000 abstract description 2
- 238000009941 weaving Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000002421 anti-septic effect Effects 0.000 abstract 1
- 239000004599 antimicrobial Substances 0.000 abstract 1
- 230000001413 cellular effect Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 235000013355 food flavoring agent Nutrition 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000001408 fungistatic effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 241001464837 Viridiplantae Species 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000013055 pulp slurry Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- -1 which is placed in Substances 0.000 description 1
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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
-
- 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
- D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
-
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Abstract
The invention discloses the preparation methods of a kind of Lin's grass fiber and its wet laid nonwoven fabric, belong to natural Lin's grass fiber extractive technique field, Lin's grass fiber is through hydrolysis, boiling, the processing steps such as bleaching obtain Lin's grass fiber, Lin's grass fiber is again through mashing, filtering, Lin's grass fiber supatex fabric is made in the techniques such as networking, Lin's grass fiber longitudinal direction form natural convolution of preparation, transversary has cellular, with moisture absorption possessed by natural fiber, nice and cool characteristic, Lin's grass fiber also has the function of natural flavor and natural antibacterial in addition to this, it can avoid artificially adding the process of chemical antiseptic and flavouring agent during as weaving raw material.Therefore, Lin's grass fiber supatex fabric not only raw material environmental protection, but also with functionality, it is widely used in the fields such as health care, health care.
Description
Technical field
The invention belongs to natural Lin's grass fiber extractive technique fields, and in particular to a kind of Lin's grass fiber and its wet laid nonwoven
The preparation method of fabric.
Background technology
Lin's grass is commonly called as stone grass, seat grass, and grass blade is round and smooth elongated, even thickness, and the thin core of wall is dredged, and soft or hard appropriateness, fiber is long, rich
Flexible, pull resistance is good, bright in colour, and faint scent is strong.It is one of splendid natural green plant fiber, Lin's grass for a long time one
Directly as summer pillow mat, the raw material of bed seat, for people in summer as receiving the use tool of cold, sleep, while also have Lin is careless
The method that Lin's grass powder aqueous solution addition rayon spinning liquid is made prepares Lin's grass fiber.Because Lin's grass fiber is short, fiber strength is low,
It cannot be directly used to spinning and weaving；Simultaneously because the limitation of preparation process so that the pulp slurry yield of Lin's grass fiber is relatively low, only
It is 15% or so, therefore limits the exploitation and application of Lin's grass fiber, and the method about the extraction of Lin's grass fiber there are no at present
Related patents are announced.
Invention content
According to more than the deficiencies in the prior art, the technical problems to be solved by the invention be propose a kind of Lin's grass fiber and its
The preparation method of wet laid nonwoven fabric, in order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of Lin's grass fiber, is extracted with the following method：
1) prehydrolysis：Lin's grass is cut into Lin's grass section, washing is clean and dry, dried Lin's grass section is added to a concentration of
Constant temperature hydrolysis is carried out in the sulfuric acid of 2-6%, neutrality is washed to after hydrolysis, dries, obtains prehydrolysis Lin's straw fiber raw material；
2) sulphate cook：Prehydrolysis Lin straw fiber raw material is mixed in sulphidity for 40-45% vulcanized sodium and sodium hydroxide
It closes and boiling is carried out in solution, and expect that bath raio is 1:9-10 adds in anthraquinone in digestion process, and anthraquinone addition is less than 0.2%, obtains
Boiling Lin's straw fiber raw material；
3) it bleaches：Boiling Lin's straw fiber raw material is placed in hydrogen peroxide alkali mixed solution, and expects that bath raio is 1：9-10,
Bleaching 2-3h is carried out at 70-75 DEG C of temperature, neutrality is washed to, obtains Lin's grass fiber.
Preferably, the length of Lin's grass section is 2-3cm.
Preferably, the temperature of the constant temperature hydrolysis is 50-150 DEG C, hydrolysis time 1-4h.
Preferably, the temperature of the sulphate cook is 130-150 DEG C, time 3-4h, and the amount of sodium hydroxide is 28-
32%.
Preferably, the hydrogen peroxide alkali mixed solution is hydrogen peroxide by concentration 5% and the sodium hydroxide of concentration 2%
Solution mixes.
A kind of preparation method of Lin's grass fiber wet laid nonwoven fabric, uses above-mentioned Lin's grass fiber as raw material, specific to prepare
Step is as follows：
1) Lin's grass fiber pulp is made after papermaking, drying in Lin's grass fiber；
2) Lin's grass fiber pulp through mashing is handled, obtains Lin's grass fiber element slurry, Lin's grass fiber slurry is first introduced and stores stock tank
In, then wet-web former is delivered to through suction dehydration networking, it is exported and at the same time being removed by deflector roll, obtains hygrometric state Lin's grass fiber
Net.
Preferably, the fibre length of Lin's grass fiber is 5-25cm, and fineness is more than 800 mesh.
Preferably, it is described to store a concentration of 2.5%-3.5% that Lin's grass fiber is starched in stock tank.
Preferably, the moisture control of suction dehydration Lin's grass fiber net into the net is in 75-85%.
Compared with prior art, beneficial effects of the present invention：
1. the made Lin's grass fiber of the present invention is natural plant fibre, in addition to absorb-discharge humid possessed by natural fiber
Can be outer, also with natural flavor and natural antibacterial performance.
2. the present invention is had using method extraction Lin grass fiber that prehydrolysis and sulphate cook are combined, recovery rate is high, behaviour
Make the advantages of simple and convenient.
3. the present invention can be used for health care, doctor using wet-laying using supatex fabric prepared by Lin's grass fiber of extraction
The use in the fields such as health is treated, expands the application field of Lin's grass fiber.
Description of the drawings
Fig. 1 is the vertically and horizontally fibre section figure of Lin's grass fiber in embodiment；
Fig. 2 is the antibacterial schematic diagram of Lin's grass fiber in embodiment.
A, the vertical structure figure of fiber, b, fiber lateral junction composition.
Specific embodiment
It below by the description to embodiment, is described in further detail, to help those skilled in the art to this hair
Bright inventive concept, technical solution have more complete, accurate and deep understanding.
Embodiment 1
A kind of Lin's grass fiber, is extracted with the following method：
1) prehydrolysis：Lin's grass is cut into Lin's grass section of 2cm, and clean through fully washing, then carries out forced air drying, by drying
Lin's grass section afterwards is added in a concentration of 2% sulfuric acid the constant temperature at 130 DEG C and hydrolyzes 4h, in being washed to after hydrolysis with deionized water
Property, and dried at 105 DEG C, obtain prehydrolysis Lin's straw fiber raw material；
2) sulphate cook：It is 40% vulcanized sodium by sulphidity and dosage is 30% that prehydrolysis Lin's straw fiber raw material, which is placed in,
Sodium hydroxide mixing solution in, and in 130 DEG C of temperature progress boiling 3h, and expect that bath raio is 1:10, it is obtained to improve fiber
Rate adds in anthraquinone in digestion process, and anthraquinone addition is 0.15%, and boiling Lin's straw fiber raw material is obtained after sulphate cook；
3) it bleaches：Boiling Lin's straw fiber raw material is placed in molten by the hydrogen peroxide of concentration 5% and the sodium hydroxide of concentration 2%
It is 1 in material bath raio in the hydrogen peroxide alkali mixed solution of liquid mixing：10, bleaching 2.5h is carried out under temperature 70 C, after bleaching
Neutrality is washed to deionized water, obtains Lin's grass fiber.
A kind of preparation method of Lin's grass fiber wet laid nonwoven fabric is Lin's grass fiber that the above method is used to prepare for original
Material, specific preparation process are as follows：
1) Lin's grass fiber of above-mentioned preparation is chosen into fibre length 20cm, Lin's grass fiber of 900 mesh of fineness is through papermaking, drying
Lin's grass fiber pulp is made afterwards；
2) Lin's grass fiber pulp is first sent into charging basket and carries out mashing processing, obtain Lin's grass fiber element slurry, then Lin's grass is fine
Dimension slurry, which is introduced into, to be stored in stock tank, and ensures to store Lin's grass fiber is starched in stock tank a concentration of 3%, then will be stored in stock tank by pipeline pump
Lin's grass fiber slurry is delivered to wet-web former through suction dehydration networking, and Lin's grass fiber net is kept in suction dehydration net process
Moisture content exports and at the same time being removed by deflector roll 80%, obtains hygrometric state Lin's grass fiber net.
By being calculated, Lin's grass fiber pulp yield in the present embodiment is 36.27%, much larger than the data announced at present
15%；And SEM tests are carried out to Lin's grass fiber of preparation, the vertical and horizontal sectional view of Lin's grass fiber of test is as shown in Figure 1；
And the carried out test of bacteriostasis property, the fungistatic effect to Lin's grass fiber are shown in Fig. 2, the results show that method using the present invention carries
Lin's grass fiber taken has apparent fungistatic effect.
The present invention is exemplarily described above in conjunction with specific embodiment, it is clear that present invention specific implementation is not by upper
State the limitation of mode, if employ the inventive concept and technical scheme of the present invention progress various unsubstantialities improvement or
It is not improved by the present invention design and technical solution directly apply to other occasions, protection scope of the present invention it
It is interior.Protection scope of the present invention should be determined by the scope of protection defined in the claims.
Claims (9)
1. a kind of Lin's grass fiber, which is characterized in that extract with the following method：
1) prehydrolysis：Lin's grass is cut into Lin's grass section, washing is clean and dry, and dried Lin's grass section is added to a concentration of 2-
Constant temperature hydrolysis is carried out in 6% sulfuric acid, neutrality is washed to after hydrolysis, dries, obtains prehydrolysis Lin's straw fiber raw material；
2) sulphate cook：Prehydrolysis Lin straw fiber raw material is molten for 40-45% vulcanized sodium and sodium hydroxide mixing in sulphidity
Boiling is carried out in liquid, and expects that bath raio is 1:9-10 adds in anthraquinone in digestion process, and anthraquinone addition is less than 0.2%, obtains boiling
Lin's straw fiber raw material；
3) it bleaches：Boiling Lin's straw fiber raw material is placed in hydrogen peroxide alkali mixed solution, and expects that bath raio is 1：9-10, in temperature
Bleaching 2-3h is carried out at 70-75 DEG C, neutrality is washed to, obtains Lin's grass fiber.
2. Lin's grass fiber according to claim 1, which is characterized in that the length of Lin's grass section is 2-3cm.
3. Lin's grass fiber according to claim 1, which is characterized in that the temperature of the constant temperature hydrolysis is 50-150 DEG C, water
Solve time 1-4h.
4. Lin's grass fiber according to claim 1, which is characterized in that the temperature of the sulphate cook is 130-150 DEG C,
Time is 3-4h, and the amount of sodium hydroxide is 28-32%.
5. Lin's grass fiber according to claim 1, which is characterized in that the hydrogen peroxide alkali mixed solution is by concentration
5% hydrogen peroxide and the sodium hydroxide solution of concentration 2% mix.
6. a kind of preparation method of Lin's grass fiber wet laid nonwoven fabric, which is characterized in that any described using claim 1-5
Lin's grass fiber for raw material, specific preparation process is as follows：
1) Lin's grass fiber pulp is made after papermaking, drying in Lin's grass fiber；
2) Lin's grass fiber pulp through mashing is handled, obtains Lin's grass fiber element slurry, Lin's grass fiber slurry is first introduced into and is stored in stock tank, then
Wet-web former is delivered to through suction dehydration networking, is exported and at the same time being removed by deflector roll, obtains hygrometric state Lin's grass fiber net.
7. the preparation method of Lin's grass fiber wet laid nonwoven fabric according to claim 6, which is characterized in that Lin's grass
The fibre length of fiber is 5-25cm, and fineness is more than 800 mesh.
8. the preparation method of Lin's grass fiber wet laid nonwoven fabric according to claim 6, which is characterized in that described to store slurry
A concentration of 2.5%-3.5% that Lin's grass fiber is starched in pond.
9. the preparation method of Lin's grass fiber wet laid nonwoven fabric according to claim 6, which is characterized in that the suction
The moisture control of Lin's grass fiber net into the net is dehydrated in 75-85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810008912.1A CN108252141A (en) | 2018-01-04 | 2018-01-04 | A kind of preparation method of Lin's grass fiber and its wet laid nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810008912.1A CN108252141A (en) | 2018-01-04 | 2018-01-04 | A kind of preparation method of Lin's grass fiber and its wet laid nonwoven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108252141A true CN108252141A (en) | 2018-07-06 |
Family
ID=62725804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810008912.1A Pending CN108252141A (en) | 2018-01-04 | 2018-01-04 | A kind of preparation method of Lin's grass fiber and its wet laid nonwoven fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108252141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944049A (en) * | 2021-10-13 | 2022-01-18 | 浙江理工大学绍兴柯桥研究院有限公司 | Flexible water-absorbing rush fiber material and preparation method thereof |
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| CN102016162A (en) * | 2008-05-08 | 2011-04-13 | 梅特索纸业公司 | Prehydrolysis sulfate cooking process |
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| CN107524001A (en) * | 2017-09-23 | 2017-12-29 | 安徽工程大学 | A kind of nanometer textile glue size and preparation method thereof |
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2018
- 2018-01-04 CN CN201810008912.1A patent/CN108252141A/en active Pending
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|---|---|---|---|---|
| JP2008501074A (en) * | 2005-04-27 | 2008-01-17 | ヒオク リー，クオン | Pulp manufacturing method using bamboo and pulp manufactured using this method |
| CN102016162A (en) * | 2008-05-08 | 2011-04-13 | 梅特索纸业公司 | Prehydrolysis sulfate cooking process |
| CN101302681A (en) * | 2008-06-03 | 2008-11-12 | 常熟市飞龙机械有限公司 | Degradable nonwoven fabric and method for producing same |
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| CN106087093A (en) * | 2016-06-07 | 2016-11-09 | 联润翔（青岛）纺织科技有限公司 | Lin's grass viscose rayon and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20180706 |