CN110409055A - In the method for straw preparation tubular type non-woven fabrics - Google Patents
In the method for straw preparation tubular type non-woven fabrics Download PDFInfo
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- CN110409055A CN110409055A CN201910821000.0A CN201910821000A CN110409055A CN 110409055 A CN110409055 A CN 110409055A CN 201910821000 A CN201910821000 A CN 201910821000A CN 110409055 A CN110409055 A CN 110409055A
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- tubular type
- straw
- woven fabrics
- water flow
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
- D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C5/00—Shaping or stretching of tubular fabrics upon cores or internal frames
Abstract
The invention discloses a kind of methods with straw preparation tubular type non-woven fabrics, including straw raw material is handled through organic solvent, Steam explosion treatment, adjuvant water solution processing, sodium hydrate aqueous solution processing and etc. and impurity such as wax, lignin in separating plant stalk, to prepare straw；By straw through shredding, be combed into tubular type reticular fibre net；Spun lacing carried out to the front and back sides of tubular type reticular fibre net again, drying, thermal finalization and straw tubular type non-woven fabrics is made.The present invention prepares tubular type non-woven fabrics with straw, low in cost, and by the excellent properties of plant cellulose, so that the tubular type non-woven fabrics of preparation has pressure-resistant, water-fast and solvent resistance.
Description
Technical field
The present invention relates to non-woven fabrics manufacturing fields, and in particular to a method of tubular type non-woven fabrics is prepared with straw.
Background technique
Non-woven fabrics is environment-friendly materials of new generation, have water repellent, it is ventilative, flexible, not combustion-supporting, nontoxic it is nonirritant, color is rich
The features such as rich.The material is placed in outdoor through natural decomposition, and MaLS only has 90 days, disposed within to decompose in 5 years, combustion
It is nontoxic when burning, tasteless and leave substance without any, thus free from environmental pollution.It directly utilizes high polymer slice, staple fiber or length
Silk forms new type of fibrous product with a soft, breathable and planar structure by various web forming methods and concretion technology.Mesh
The non-woven fabrics sold on preceding domestic market is mainly spun-bonded non-woven fabrics, melt spraying non-woven fabrics and spunlace non-woven cloth.
Spunlace non-woven cloth is to intertwine with each other fiber one on high pressure fine water flow jet to one or more layers web
It rises, to enable fibre web to reinforce and have certain strength, fabric obtained is spunlace non-woven cloth.Its fibrous raw material source is wide
It is general, it is fine to can be terylene, polyamide fibre, polypropylene fibre, viscose rayon, chitin fiber, superfine fibre, tencel, silk, bamboo fibre, wood pulp
Dimension, alginate fibre etc..It is to the more demanding of fibre length, it is desirable that between 30mm-40mm.
Cellulose is one of most ancient and the most abundant natural polymer on the earth, and plant is generated by photosynthesis every year
About 200,000,000,000 tons of celluloses, are the renewable resources that nature is inexhaustible, nexhaustible, and cellulosic structure is single, source
It enriches, have the characteristics that biological degradability, biocompatibility and easy derivatization.It is Chinese from 20 generation with the development of agricultural production
It has recorded since the eighties, grain yield greatly improves, and stalk quantity is also more, and stalk primary limitation is for purposes such as building materials, fuel, also
There is a large amount of stalk discarded, this is a kind of serious wasting of resources for conservation-minded society.According to statistics, agriculture is often only by China
Crop material and agricultural product husk etc. just have more than 700,000,000 tons.In stalk contain a large amount of organic matter, content of cellulose about 40~50%,
As reed chemical component in contain cellulose 48~54%, lignin about 18.2%, pentosan about 12.4%, ash content about 2.8%.Such as
If efficiently using these stalks to produce non-woven fabrics, not only raw material is sufficient, can also make up current spunlace non-woven cloth terylene, third
The defects of expensive raw material prices such as synthetic fibre, viscose rayon, improves the utilization rate of China's agricultural crop straw.
Summary of the invention
The object of the present invention is to provide a kind of method with straw preparation tubular type non-woven fabrics, tubular type made from this method
Non-woven fabrics has good pressure-resistant, water-fast and solvent resistance.
A method of tubular type non-woven fabrics is prepared with straw, comprising the following steps:
1) straw raw material is cut into 50~60mm long, dedusting, screening are with spare；
The straw raw material is one of reed straw, wheat stalk, rice straw, bagasse stalk or corn stover；
2) straw raw material that step 1) obtains dipping is reacted 3 at normal temperature in organic solvent, after sealing~for 24 hours, it takes
Straw raw material is immediately placed in progress steam explosion processing in Steam explosion treatment equipment out；
The dipping bath ratio is 1:2~30, and organic solvent is n-hexane, carbon tetrachloride, trichloro ethylene, chloroform, hexamethylene, first
One of benzene, petroleum ether, tetrahydrofuran, ether, carbon disulfide, ethyl acetate or butanone；The steam explosion condition are as follows: pressure is
0.5~8MPa, dwell time are moment pressure release after 10~600s；
3) the straw raw material of step 2 processing is immersed in sodium hydrate aqueous solution after adjuvant water solution washing, washing
It is handled, washes, dries obtained straw；
The technique of the adjuvant water solution washing are as follows: bath raio 1:10~100；Auxiliary agent is dodecyl sodium sulfate, mass concentration 1
~10%, 5~60min is impregnated, temperature is room temperature；
The sodium hydrate aqueous solution treatment conditions are as follows: bath raio 1:5~50；Mass concentration is 0.5~5%, impregnates 5~20min,
Temperature is 30~50 DEG C；
4) in support tube outer surface, by straw shredding made from step 3), it is combed into tubular type reticular fibre net；
5) spun lacing is carried out as front and back sides of the spun-laced machine to tubular type reticular fibre net made from step 4), drying obtains pipe type water
Pierce web base fabric；
6) tubular type non-woven fabrics is made through thermal finalization in tubular type spun lacing web base fabric made from step 5).
Support tube is tubular type terylene net in the step 4), and the tubular type terylene net diameter is 5~25mm.
The technique that spun lacing is handled in the step 5) are as follows: by seven fine water flow spray thorn effects；Wherein, spun lacing is aspirated
Negative pressure is 5~10kPa, and the hydraulic pressure of first fine water flow spray thorn effect is 2~4MPa, what second fine water flow spray thorn acted on
Hydraulic pressure is 5~7MPa, and the hydraulic pressure of the fine water flow spray thorn effect of third is 8~11MPa, what the 4th fine water flow spray thorn acted on
Hydraulic pressure is 5~7MPa, and the hydraulic pressure of the 5th fine water flow spray thorn effect is 8~11MPa, what the 6th fine water flow spray thorn acted on
Hydraulic pressure is 7~10MPa, and the hydraulic pressure of the 7th fine water flow spray thorn effect is 4~6MPa.
Drying temperature is 100~130 DEG C in the step 5), and the time is 200~300s.
Heat setting temperature is 140~160 DEG C in the step 6), and speed is 40~60m/min.
Compared with prior art, the present invention having the advantage that
1) present invention is therein wooden to separate with organic solvent and organic solvent medium Steam explosion treatment straw raw material
Element and the impurity such as wax, reduce the use of the reagents such as acid, alkali and its reduce sour, base reagent use cause the plant pulp degree of polymerization and
The defect of crystallinity decline；Organic solvent pretreatment straw raw material is selected, so that wax in straw raw material, wooden
The expansion of the impurity such as element, rupture, then impurity is removed by organic solvent medium steam blasting, to reach separation cellulose, wooden
The purpose of element, wax.
2) present invention prepares tubular type non-woven fabrics with straw, low in cost, and by the excellent properties of plant cellulose, makes
The tubular type non-woven fabrics that must be prepared has pressure-resistant, water-fast and solvent resistance.
Specific embodiment
The present invention will be further described with reference to the examples below.
Embodiment 1
500g reed straw raw material is cut into 50mm long, dedusting is screened with spare；Again by reed straw raw material be immersed in 1kg just oneself
It in alkane, is placed under room temperature air-proof condition for 24 hours, taking out that treated, reed straw raw material is placed in steam blasting jar, In
Moment pressure release after pressure maintaining 300s under conditions of pressure is 4MPa；Take out treated reed straw raw material at room temperature, 500g ten
5min is impregnated in the aqueous solution of dialkyl sulfonates and 4.5kg water composition, takes out washing 2 times, then at 50 DEG C, 125g hydroxide
20min is impregnated in the aqueous solution of sodium and 24.875kg water composition, takes out and is dried for use at washing 2 times, 80 DEG C；It is 25mm in diameter
On tubular type terylene net outer surface, by reed straw shredding obtained, it is combed into tubular type reticular fibre net；By seven fine water flows
Spray thorn effect carries out spun lacing processing to tubular type reticular fibre net, and the negative pressure of spun lacing suction is 10kPa, and seven fine water flow spray thorns are made
Hydraulic pressure is respectively 3MPa, 5MPa, 8MPa, 6MPa, 9MPa, 9MPa, 5MPa, then dries 250s at 120 DEG C；It is in temperature
140 DEG C, reed straw tubular type non-woven fabrics is made for thermal finalization under 60m/min for speed, and the diameter of the tubular type non-woven fabrics is 25mm,
Square grammes per square metre is 210g/m2。
Embodiment 2
800g wheat stalk raw material is cut into 60mm long, dedusting is screened with spare；Wheat stalk raw material is immersed in 24kg stone again
In oily ether, 3h is placed under room temperature air-proof condition, taking out that treated, wheat stalk raw material is placed in steam blasting jar, In
Moment pressure release after pressure maintaining 600s under conditions of pressure is 0.5MPa；Take out treated wheat stalk raw material at room temperature, 800g
60min is impregnated in the aqueous solution of dodecyl sodium sulfate and 792kg water composition, takes out washing 2 times, then at 40 DEG C, 200g hydrogen
5min is impregnated in the aqueous solution of sodium oxide molybdena and 199.8kg water composition, takes out and is dried for use at washing 2 times, 80 DEG C；It is in diameter
On 18mm tubular type terylene net outer surface, by wheat stalk shredding obtained, it is combed into tubular type reticular fibre net；It is fine by seven
The effect of water flow spray thorn carries out spun lacing processing to tubular type reticular fibre net, and the negative pressure of spun lacing suction is 8kPa, seven fine water flow sprays
The hydraulic pressure of thorn effect is respectively 2MPa, 5MPa, 8MPa, 5MPa, 8MPa, 7MPa, 4MPa, then dries 300s at 100 DEG C；In temperature
It is 160 DEG C, wheat stalk tubular type non-woven fabrics is made for thermal finalization under 40m/min for speed, and the diameter of the tubular type non-woven fabrics is
18mm, square grammes per square metre are 300g/m2。
Embodiment 3
600g rice straw raw material is cut into 55mm long, dedusting is screened with spare；Rice straw raw material is immersed in 9kg tetrachloro again
Change in carbon, places 15h under room temperature air-proof condition, taking out that treated, rice straw raw material is placed in steam blasting jar,
The moment pressure release after pressure maintaining 300s under conditions of pressure is 8MPa；Take out treated rice straw raw material at room temperature, 1.5kg
30min is impregnated in the aqueous solution of dodecyl sodium sulfate and 28.5kg water composition, takes out washing 2 times, then at 40 DEG C, 300g hydrogen
10min is impregnated in the aqueous solution of sodium oxide molybdena and 14.7kg water composition, takes out and is dried for use at washing 2 times, 80 DEG C；It is in diameter
On 5mm tubular type terylene net outer surface, by rice straw shredding obtained, it is combed into tubular type reticular fibre net；It is fine by seven
The effect of water flow spray thorn carries out spun lacing processing to tubular type reticular fibre net, and the negative pressure of spun lacing suction is 5kPa, seven fine water flow sprays
The hydraulic pressure of thorn effect is respectively 4MPa, 7MPa, 11MPa, 7MPa, 11MPa, 10MPa, 6MPa, then dries 200s at 130 DEG C；In
Temperature is 150 DEG C, and rice straw tubular type non-woven fabrics, the diameter of the tubular type non-woven fabrics are made for thermal finalization under 50m/min for speed
For 5mm, square grammes per square metre is 95g/m2。
Claims (10)
1. a kind of method with straw preparation tubular type non-woven fabrics, which comprises the following steps:
1) straw raw material is cut into 50~60mm long, dedusting, screening are with spare；
2) straw raw material that step 1) obtains dipping is reacted 3 at normal temperature in organic solvent, after sealing~for 24 hours, it takes
Straw raw material is immediately placed in progress steam explosion processing in Steam explosion treatment equipment out；
3) the straw raw material of step 2 processing is immersed in sodium hydrate aqueous solution after adjuvant water solution washing, washing
It is handled, washes, dries obtained straw；
4) in support tube outer surface, by straw shredding made from step 3), it is combed into tubular type reticular fibre net；
5) spun lacing is carried out as front and back sides of the spun-laced machine to tubular type reticular fibre net made from step 4), drying obtains pipe type water
Pierce web base fabric；
6) tubular type non-woven fabrics is made through thermal finalization in tubular type spun lacing web base fabric made from step 5).
2. the method according to claim 1, wherein in the step 1) straw raw material be reed straw,
One of wheat stalk, rice straw, bagasse stalk or corn stover.
3. the method according to claim 1, wherein dipping bath ratio is 1:2~30, You Jirong in the step 2
Agent be n-hexane, carbon tetrachloride, trichloro ethylene, chloroform, hexamethylene, toluene, petroleum ether, tetrahydrofuran, ether, carbon disulfide,
One of ethyl acetate or butanone.
4. the method according to claim 1, wherein steam explosion condition in the step 2 are as follows: pressure be 0.5~
8MPa, dwell time are moment pressure release after 10~600s.
5. the method according to claim 1, wherein the technique that adjuvant water solution washs in the step 3) are as follows:
Bath raio 1:10~100；Auxiliary agent is dodecyl sodium sulfate, and mass concentration is 1~10%, impregnates 5~60min, temperature is room temperature.
6. the method according to claim 1, wherein sodium hydrate aqueous solution treatment conditions in the step 3)
Are as follows: bath raio 1:5~50；Mass concentration is 0.5~5%, impregnates 5~20min, and temperature is 30~50 DEG C.
7. the method according to claim 1, wherein in the step 4) support tube be tubular type terylene net, it is described
Tubular type terylene net diameter is 5~25mm.
8. the method according to claim 1, wherein the technique that spun lacing is handled in the step 5) are as follows: pass through seven
A fine water flow spray thorn effect；Wherein, the negative pressure of spun lacing suction is 5~10kPa, the hydraulic pressure of first fine water flow spray thorn effect
For 2~4MPa, the hydraulic pressure of second fine water flow spray thorn effect is 5~7MPa, the hydraulic pressure of the fine water flow spray thorn effect of third
For 8~11MPa, the hydraulic pressure of the 4th fine water flow spray thorn effect is 5~7MPa, the hydraulic pressure of the 5th fine water flow spray thorn effect
For 8~11MPa, the hydraulic pressure of the 6th fine water flow spray thorn effect is 7~10MPa, the water of the 7th fine water flow spray thorn effect
Pressure is 4~6MPa.
9. the method according to claim 1, wherein in the step 5) drying temperature be 100~130 DEG C, when
Between be 200~300s.
10. the method according to claim 1, wherein in the step 6) heat setting temperature be 140~160 DEG C,
Speed is 40~60m/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910821000.0A CN110409055A (en) | 2019-09-02 | 2019-09-02 | In the method for straw preparation tubular type non-woven fabrics |
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| CN201910821000.0A CN110409055A (en) | 2019-09-02 | 2019-09-02 | In the method for straw preparation tubular type non-woven fabrics |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110791878A (en) * | 2019-11-06 | 2020-02-14 | 江南大学 | Preparation method of high-adsorbability artificial fiber membrane |
| CN111387587A (en) * | 2020-02-23 | 2020-07-10 | 山东百多安医疗器械有限公司 | Degradable broad-spectrum antibacterial antiviral environment-friendly mask |
| CN111648028A (en) * | 2020-05-14 | 2020-09-11 | 江西鹏腾实业有限公司 | Preparation method of plant herbal nano-aluminum dustproof antibacterial slurry and melt-blown cloth |
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| CN110791878B (en) * | 2019-11-06 | 2021-06-22 | 江南大学 | Preparation method of high-adsorbability artificial fiber membrane |
| CN111387587A (en) * | 2020-02-23 | 2020-07-10 | 山东百多安医疗器械有限公司 | Degradable broad-spectrum antibacterial antiviral environment-friendly mask |
| CN111648028A (en) * | 2020-05-14 | 2020-09-11 | 江西鹏腾实业有限公司 | Preparation method of plant herbal nano-aluminum dustproof antibacterial slurry and melt-blown cloth |
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Address after: 224300 north side of Panshi road and east side of Jiancai Third Road, Sheyang Port Economic Zone, Sheyang County, Yancheng City, Jiangsu Province Applicant after: Yancheng hiprun Technology Co.,Ltd. Address before: 224300, Jiangsu, Yancheng City County, Sheyang Sheyang Economic Zone, east of Jinhai Road, north latitude road two Applicant before: YANCHENG HAIPURUN FILM TECHNOLOGY CO.,LTD. |
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