CN110528172A - A method of so that Flash Spinning Nonwovens surface is adhered to electrostatic - Google Patents
A method of so that Flash Spinning Nonwovens surface is adhered to electrostatic Download PDFInfo
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- CN110528172A CN110528172A CN201810510553.XA CN201810510553A CN110528172A CN 110528172 A CN110528172 A CN 110528172A CN 201810510553 A CN201810510553 A CN 201810510553A CN 110528172 A CN110528172 A CN 110528172A
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- Prior art keywords
- electrostatic
- spinning
- fibre bundle
- flash
- spinning solution
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
-
- 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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/544—Olefin 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
- D04H1/70—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
- D04H1/72—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 the fibres being randomly arranged
- D04H1/724—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 the fibres being randomly arranged forming webs during fibre formation, e.g. flash-spinning
-
- 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
- D04H1/72—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 the fibres being randomly arranged
- D04H1/736—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 the fibres being randomly arranged characterised by the apparatus for arranging fibres
Abstract
The invention discloses a kind of methods for making Flash Spinning Nonwovens surface attachment electrostatic, the following steps are included: Step 1: preparing spinning solution: preparing spinning solution: polymer, spin solvent and dimethylformamide being uniformly mixed and are added in autoclave, spinning solution is made；Step 2: the spinning solution is sprayed from the spinning head of flash spinning equipment, form fibre bundle, pressure-air with fibre bundle is diverted plate and guides electrostatic fiber-opening apparatus into, pressure-air with fibre bundle reticulates fluff structure by the uniform fibrillation of electrostatic fiber-opening apparatus, fibre bundle after fibrillation, which is deposited on productive set band, forms web, and web forms thin slice by the hot rolling of roller.Dimethylformamide is added in spinning solution for the first time by the present invention, reinforces the ability of Flash Spinning Nonwovens surface attachment electrostatic, so that finished fiber dispersion performance greatly improves, while increasing the mechanical property of Flash Spinning Nonwovens.
Description
Technical field
The present invention relates to the technical fields of non-woven cloth more particularly to one kind, and Flash Spinning Nonwovens surface to be made to adhere to electrostatic
Method.
Background technique
Flash-spinning is a kind of special case of dry spinning, and polymer quickly forms fiber, also known as moment when solvent flashes
Spinning.The spining technology method is mainly: fibre-forming polymer being mixed with solvent, selected solvent boiling point is lower than polymer, In
Polymer cannot be dissolved under normal temperature and pressure；In the case where pressurized, heated, fibre-forming polymer can be dissolved.It is omited when being heated to temperature
Higher than solvent boiling point when, spinning solution is made in polymer dissolution, squeezes out immediately from spinneret orifice, into low temperature (or room temperature) and low
It presses in (or normal pressure) medium, the solvent in liquid thread evaporates suddenly, and polymer cools and solidifies rapidly, forms ultra-fine network knot
Structure.Tow is by the needle-shaped negative electrode plate with high pressure, through corona discharge.Fiber fibrillation, band due to band homophilic charge in tow
Electric fiber is neutralized by the convoying curtain metal plate corona discharge off the net with high pressure positive electricity, and a kind of flash-spinning in the prior art is set
It is standby as shown in Figure 1, including spinning head 10, deflecting plate 20, productive set band 30, target plate 40, needle electrode plate 50, the first roller 60, the
Two rollers 70, metal plate 80, spinning solution are sprayed from spinning head, and ejection air velocity is 6000-8000m/min, solvent moment
Foaming flash distillation carries out super drawing to tow using velocity gradient variation, forms ultra-fine reticular fibre item, make silk with electrostatic methods
Beam fibrillation keeps monofilament state, and makes fibre deposition networking using electrostatic equipment, and coagulating net spee is 90-110 m/min.
Only the U.S., Japan have carried out industrialized production to the technique at present, and fiber-forming polymer used is generally structure and compares
Regular polyolefin, such as polyethylene, polypropylene and polymethylpentene.The development of through a long time, can be used for fiber-forming polymer
Raw material from the mixture of various olefin polymers, olefin polymer and other polymers developed to polyesters, polyurethanes,
Polyamide etc., mainly or based on polyethylene.Using existing electrostatic technique, so that nonwoven fabric surface electrostatic adhesive force is weak,
And then affect the dispersion performance of subsequent fiber.
In view of this, the present inventor studies and designs a kind of method for making Flash Spinning Nonwovens surface attachment electrostatic, this
Thus case generates.
Summary of the invention
The purpose of the present invention is to provide a kind of methods for making Flash Spinning Nonwovens surface attachment electrostatic, so that finished product is fine
Dimension dispersion performance greatly improves, while increasing the mechanical property of Flash Spinning Nonwovens.
To achieve the goals above, the technical scheme adopted by the invention to solve the technical problem is that: one kind making flash method
The method of nonwoven fabric surface attachment electrostatic, comprising the following steps:
Step 1: preparing spinning solution: polymer, spin solvent and dimethylformamide being uniformly mixed and are added to reaction under high pressure
It in kettle, is sufficiently mixed under conditions of 180-200 DEG C of temperature, pressure 6-10MPa, spinning solution is made；
Step 2: flash method prepares polyethylene fibre: the spinning solution is sprayed from the spinning head of flash spinning equipment, and spinning is former
The solvent flash evapn of liquid, the polymer of spinning solution cool and solidify rapidly, form fibre bundle, the pressure-air with fibre bundle
It is diverted plate and guides electrostatic fiber-opening apparatus into, the pressure-air with fibre bundle reticulates fluffy by the uniform fibrillation of electrostatic fiber-opening apparatus
Loose structure, the fibre bundle after fibrillation, which is deposited on productive set band, forms web, and web forms thin slice by the hot rolling of roller.
As the preferred embodiment of embodiment, the polymer is polyethylene, in polyvinyl chloride, polyacrylonitrile, polyamide
It is one or more of.
As the preferred embodiment of embodiment, the spin solvent is methylene chloride, trichlorofluoromethane, dichloroethylene, ring penta
One or more of alkane.
As the preferred embodiment of embodiment, in the autoclave, blender speed of agitator is 80-100rpm, mixing
Time is 2-6h.
As the preferred embodiment of embodiment, the solid-liquid ratio of the polymer and the spin solvent are as follows: (3-4) g:20 mL.
As the preferred embodiment of embodiment, the volume ratio of the dimethylformamide and the spin solvent is (0.4-3):
20 。
As the preferred embodiment of embodiment, the electrostatic fiber-opening apparatus applies the electrostatic of 5-10kV to fibre bundle.
As the preferred embodiment of embodiment, the fibre deposition solidifying net spee into the net is 90-110 m/min.
Since present invention employs above-mentioned technical solutions so that the invention has the following advantages: the present invention for the first time
By dimethylformamide be added to polymer, spin solvent composition system in so that Flash Spinning Nonwovens obtain absorption and
The function of release electrostatic disperses fiber more by electrostatic technique, and cooperates drawing of fiber, and it is non-woven to increase flash method
The mechanical property of cloth.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of flash spinning equipment of the prior art.
Specific embodiment
Embodiment 1
A method of so that Flash Spinning Nonwovens surface is adhered to electrostatic, comprising the following steps:
Step 1: preparing spinning solution: polyethylene, spin solvent methylene chloride and dimethylformamide being uniformly mixed and are added to
It in autoclave, is sufficiently mixed under conditions of 180 DEG C of temperature, pressure 6MPa, spinning solution is made；The reaction under high pressure
In kettle, 200 speed of agitator of blender is 80rpm, incorporation time 2h.The solid-liquid ratio of polyethylene and spin solvent methylene chloride
Are as follows: 3:20 g/mL；The volume ratio of dimethylformamide and the spin solvent methylene chloride is 0.4:20.
Step 2: flash method prepares polyethylene fibre: the spinning solution is sprayed from the spinning head of flash spinning equipment；It spins
The solvent flash evapn of silk stock solution, the polymer of spinning solution cool and solidify rapidly, form fibre bundle, the high pressure with fibre bundle
Air is diverted plate and guides electrostatic fiber-opening apparatus into, and the electrostatic fiber-opening apparatus applies the electrostatic of 5kV to fibre bundle；By electrostatic side
Method carries out fibrillation, fibre deposition networking to polyethylene fibre bundle, and the pressure-air with fibre bundle is uniformly opened by fiber-opening apparatus
Fibre reticulates fluff structure, and the fibre bundle after fibrillation, which is deposited on productive set band, forms web, and the fibre deposition is into the net solidifying
Net spee is 90m/min, and web forms thin slice by the hot rolling of roller.
Embodiment 2
A method of so that Flash Spinning Nonwovens surface is adhered to electrostatic, comprising the following steps:
Step 1: preparing spinning solution: polyethylene, spin solvent methylene chloride and dimethylformamide being uniformly mixed and are added to
It in autoclave, is sufficiently mixed under conditions of 190 DEG C of temperature, pressure 8MPa, spinning solution is made；The reaction under high pressure
In kettle, blender speed of agitator is 90rpm, incorporation time 3h.The solid-liquid ratio of polyethylene and spin solvent methylene chloride are as follows:
3.5:20 g/mL；The volume ratio of dimethylformamide and the spin solvent methylene chloride is 2:20.
Step 2: flash method prepares polyethylene fibre: the spinning solution is sprayed from the spinning head of flash spinning equipment, is spun
The solvent flash evapn of silk stock solution, the polymer of spinning solution cool and solidify rapidly, form fibre bundle, the high pressure with fibre bundle
Air is diverted plate and guides electrostatic fiber-opening apparatus into, and the electrostatic fiber-opening apparatus applies the electrostatic of 8kV to fibre bundle；By electrostatic side
Method carries out fibrillation, fibre deposition networking to polyethylene fibre bundle, and the pressure-air with fibre bundle is uniformly opened by fiber-opening apparatus
Fibre reticulates fluff structure, and the fibre bundle after fibrillation, which is deposited on productive set band, forms web, and the fibre deposition is into the net solidifying
Net spee is 100m/min, and web forms thin slice by the hot rolling of roller.
Embodiment 3
A method of so that Flash Spinning Nonwovens surface is adhered to electrostatic, comprising the following steps:
Step 1: preparing spinning solution: polyethylene, spin solvent methylene chloride and dimethylformamide being uniformly mixed and are added to
It in autoclave, is sufficiently mixed under conditions of 200 DEG C of temperature, pressure 10MPa, spinning solution is made；The reaction under high pressure
In kettle, blender speed of agitator is 100rpm, incorporation time 4h.The solid-liquid ratio of polyethylene and spin solvent methylene chloride are as follows:
4:20 g/mL；The volume ratio of dimethylformamide and the spin solvent methylene chloride is 3:20.
Step 2: flash method prepares polyethylene fibre: the spinning solution is sprayed from the spinning head of flash spinning equipment, is spun
The solvent flash evapn of silk stock solution, the polymer of spinning solution cool and solidify rapidly, form fibre bundle, the high pressure with fibre bundle
Air is diverted plate and guides electrostatic fiber-opening apparatus into, and the electrostatic fiber-opening apparatus applies the electrostatic of 10kV to fibre bundle；Pass through electrostatic
Method carries out fibrillation to polyethylene fibre bundle, and fibre deposition networking, it is uniform that the pressure-air with fibre bundle passes through fiber-opening apparatus
Fibrillation reticulates fluff structure, and the fibre bundle after fibrillation, which is deposited on productive set band, forms web, and the fibre deposition is into the net
Solidifying net spee is 110m/min, and web forms thin slice by the hot rolling of roller.
Embodiment 4
A method of so that Flash Spinning Nonwovens surface is adhered to electrostatic, comprising the following steps:
Step 1: preparing spinning solution: polyvinyl chloride, spin solvent trichlorofluoromethane and dimethylformamide are added to high pressure
It in reaction kettle, is sufficiently mixed under conditions of 180 DEG C of temperature, pressure 6MPa, spinning solution is made；In the autoclave,
200 speed of agitator of blender is 80rpm, incorporation time 2h.The solid-liquid ratio of polyvinyl chloride and spin solvent trichlorofluoromethane are as follows:
3.5:20 g/mL；The volume ratio of dimethylformamide and the spin solvent trichlorofluoromethane is 2:20L.
Step 2: flash method prepares polyethylene fibre: the spinning solution is sprayed from the spinning head of flash spinning equipment, is spun
The solvent flash evapn of silk stock solution, the polymer of spinning solution cool and solidify rapidly, form fibre bundle, the high pressure with fibre bundle
Air is diverted plate and guides electrostatic fiber-opening apparatus into, and the electrostatic fiber-opening apparatus applies the electrostatic of 8kV to fibre bundle；By electrostatic side
Method carries out fibrillation, fibre deposition networking to polyethylene fibre bundle, and the pressure-air with fibre bundle is uniformly opened by fiber-opening apparatus
Fibre reticulates fluff structure, and the fibre bundle after fibrillation, which is deposited on productive set band, forms web, and the fibre deposition is into the net solidifying
Net spee is 100m/min, and web forms thin slice by the hot rolling of roller.
Embodiment 5
A method of so that Flash Spinning Nonwovens surface is adhered to electrostatic, comprising the following steps:
Step 1: preparing spinning solution: it is anti-that polyacrylonitrile, spin solvent dichloroethylene and dimethylformamide being added to high pressure
It answers in kettle, is sufficiently mixed under conditions of 190 DEG C of temperature, pressure 8MPa, spinning solution is made；In the autoclave, stir
Mixing device speed of agitator is 90rpm, incorporation time 3h.The solid-liquid ratio of polyacrylonitrile and spin solvent dichloroethylene are as follows: 3.5:20
g/mL；The volume ratio of dimethylformamide and the spin solvent dichloroethylene is 2:20L.
Step 2: flash method prepares polyethylene fibre: the spinning solution is sprayed from the spinning head of flash spinning equipment, is spun
The solvent flash evapn of silk stock solution, the polymer of spinning solution cool and solidify rapidly, form fibre bundle, the high pressure with fibre bundle
Air is diverted plate and guides electrostatic fiber-opening apparatus into, and the electrostatic fiber-opening apparatus applies the electrostatic of 8kV to fibre bundle；By electrostatic side
Method carries out fibrillation, fibre deposition networking to polyethylene fibre bundle, and the pressure-air with fibre bundle is uniformly opened by fiber-opening apparatus
Fibre reticulates fluff structure, and the fibre bundle after fibrillation, which is deposited on productive set band, forms web, and the fibre deposition is into the net solidifying
Net spee is 100m/min, and web forms thin slice by the hot rolling of roller.
Embodiment 6
A method of so that Flash Spinning Nonwovens surface is adhered to electrostatic, comprising the following steps:
Step 1: preparing spinning solution: polyamide, spin solvent pentamethylene and dimethylformamide are added to autoclave
In, it is sufficiently mixed under conditions of 200 DEG C of temperature, pressure 10MPa, spinning solution is made；In the autoclave, stirring
Device speed of agitator is 100rpm, incorporation time 4h.The solid-liquid ratio of polyamide and spin solvent pentamethylene are as follows: 3.5:20 g/mL；
The volume ratio of dimethylformamide and the spin solvent pentamethylene is 2:20L.
Step 2: flash method prepares polyethylene fibre: the spinning solution is sprayed from the spinning head of flash spinning equipment, is spun
The solvent flash evapn of silk stock solution, the polymer of spinning solution cool and solidify rapidly, form fibre bundle, the high pressure with fibre bundle
Air is diverted plate and guides electrostatic fiber-opening apparatus into, and the electrostatic fiber-opening apparatus applies the electrostatic of 8kV to fibre bundle；By electrostatic side
Method carries out fibrillation, fibre deposition networking to polyethylene fibre bundle, and the pressure-air with fibre bundle is uniformly opened by fiber-opening apparatus
Fibre reticulates fluff structure, and the fibre bundle after fibrillation, which is deposited on productive set band, forms web, and the fibre deposition is into the net solidifying
Net spee is 100m/min, and web forms thin slice by the hot rolling of roller.
Comparative example 1
A method of so that Flash Spinning Nonwovens surface is adhered to electrostatic, comprising the following steps:
Step 1: preparing spinning solution: polyethylene, spin solvent methylene chloride are uniformly mixed and are added in autoclave,
It is sufficiently mixed under conditions of 190 DEG C of temperature, pressure 8MPa, spinning solution is made；In the autoclave, blender is stirred
Mixing revolving speed is 90rpm, incorporation time 3h.The solid-liquid ratio of polyethylene and spin solvent methylene chloride are as follows: 3.5:20 g/mL.
Step 2: flash method prepares polyethylene fibre: the spinning solution is sprayed from the spinning head of flash spinning equipment, is spun
The solvent flash evapn of silk stock solution, the polymer of spinning solution cool and solidify rapidly, form fibre bundle, the high pressure with fibre bundle
Air is diverted plate and guides electrostatic fiber-opening apparatus into, and the electrostatic fiber-opening apparatus applies the electrostatic of 8kV to fibre bundle；By electrostatic side
Method carries out fibrillation, fibre deposition networking to polyethylene fibre bundle, and the pressure-air with fibre bundle is uniformly opened by fiber-opening apparatus
Fibre reticulates fluff structure, and the fibre bundle after fibrillation, which is deposited on productive set band, forms web, and the fibre deposition is into the net solidifying
Net spee is 100m/min, and web forms thin slice by the hot rolling of roller.
Comparative example 2
A method of so that Flash Spinning Nonwovens surface is adhered to electrostatic, comprising the following steps:
Step 1: preparing spinning solution: polyacrylonitrile, spin solvent dichloroethylene being added in autoclave, in temperature
It 190 DEG C, is sufficiently mixed under conditions of pressure 8MPa, spinning solution is made；In the autoclave, blender speed of agitator
For 90rpm, incorporation time 3h.The solid-liquid ratio of polyacrylonitrile and spin solvent dichloroethylene are as follows: 3.5:20 g/mL.
Step 2: flash method prepares polyethylene fibre: the spinning solution is sprayed from the spinning head of flash spinning equipment, is spun
The solvent flash evapn of silk stock solution, the polymer of spinning solution cool and solidify rapidly, form fibre bundle, the high pressure with fibre bundle
Air is diverted plate and guides electrostatic fiber-opening apparatus into, and the electrostatic fiber-opening apparatus applies the electrostatic of 8kV to fibre bundle；By electrostatic side
Method carries out fibrillation, fibre deposition networking to polyethylene fibre bundle, and the pressure-air with fibre bundle is uniformly opened by fiber-opening apparatus
Fibre reticulates fluff structure, and the fibre bundle after fibrillation, which is deposited on productive set band, forms web, and the fibre deposition is into the net solidifying
Net spee is 100m/min, and web forms thin slice by the hot rolling of roller.
Embodiment 7
To web made from dimethylformamide is not added in web (embodiment 1-6) produced by the present invention and spinning solution
(comparative example 1-2) carries out fibre property test, as a result such as table 1.
The fibre property of 1 web of table is tested
It can be seen that fiber net fiber produced by the present invention is thin, and intensity is high.Fiber net fiber is carefully conducive to product non-woven cloth
Filtering, waterproof, fibre strength height is conducive to the direct networking of web, does not need compound with other textiles, thus expands significantly
The purposes of non-woven cloth produced by the present invention is opened up.The non-woven cloth of this spinning technique production is sufficiently fine because of fibre single thread,
Fiber moment stretches, crystallinity superelevation, and there is the non-woven cloth of acquisition general industry spinning cannot have the special feature that.It is first
First, gap is sufficiently fine, can stop the invasion of hydrone, bacterium, viruses molecule, but vapor can pass through again with air.
Secondly, crystallinity is high, fiber single fiber strength is very high, so the strength of finished fabric is good, tear-resistant, resistance to acupuncture performance is superpower.Separately
It is outer to have the features such as light, stiffening again, it can apply in medical protection, medical package, industrial protection field；Also it can be widely used in
The industries such as building, finishing, fashion.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to
Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.
Claims (8)
1. a kind of method for making Flash Spinning Nonwovens surface attachment electrostatic, it is characterised in that: the following steps are included:
Step 1: preparing spinning solution: polymer, spin solvent and dimethylformamide being uniformly mixed and are added to reaction under high pressure
It in kettle, is sufficiently mixed under conditions of 180-200 DEG C of temperature, pressure 6-10MPa, spinning solution is made；
Step 2: flash method prepares polyethylene fibre: the spinning solution is sprayed from the spinning head of flash spinning equipment, and spinning is former
The solvent flash evapn of liquid, the polymer of spinning solution cool and solidify rapidly, form fibre bundle, the pressure-air with fibre bundle
It is diverted plate and guides electrostatic fiber-opening apparatus into, the pressure-air with fibre bundle reticulates fluffy by the uniform fibrillation of electrostatic fiber-opening apparatus
Loose structure, the fibre bundle after fibrillation, which is deposited on productive set band, forms web, and web forms thin slice by the hot rolling of roller.
2. a kind of method for making Flash Spinning Nonwovens surface attachment electrostatic as described in claim 1, it is characterised in that: described
Polymer is one or more of polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide.
3. a kind of method for making Flash Spinning Nonwovens surface attachment electrostatic as described in claim 1, it is characterised in that: described
Spin solvent is one or more of methylene chloride, trichlorofluoromethane, dichloroethylene, pentamethylene.
4. a kind of method for making Flash Spinning Nonwovens surface attachment electrostatic as described in claim 1, it is characterised in that: described
In autoclave, blender speed of agitator is 80-100rpm, incorporation time 2-6h.
5. a kind of method for making Flash Spinning Nonwovens surface attachment electrostatic as described in claim 1, it is characterised in that: described
The solid-liquid ratio of polymer and the spin solvent are as follows: (3-4) g:20 mL.
6. a kind of method for making Flash Spinning Nonwovens surface attachment electrostatic as described in claim 1, it is characterised in that: described
The volume ratio of dimethylformamide and the spin solvent is (0.4-3): 20.
7. a kind of method for making Flash Spinning Nonwovens surface attachment electrostatic as described in claim 1, it is characterised in that: described
Electrostatic fiber-opening apparatus applies the electrostatic of 5-10kV to fibre bundle.
8. a kind of method for making Flash Spinning Nonwovens surface attachment electrostatic as described in claim 1, it is characterised in that: described
Fibre deposition solidifying net spee into the net is 90-110 m/min.
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| CN115074917A (en) * | 2022-07-15 | 2022-09-20 | 厦门当盛新材料有限公司 | Novel bacterium-blocking breathable fabric and preparation method thereof |
| CN115161877A (en) * | 2022-07-15 | 2022-10-11 | 厦门当盛新材料有限公司 | Hinder ventilative surface fabric apparatus for producing of fungus |
| CN115323628A (en) * | 2022-09-20 | 2022-11-11 | 厦门当盛新材料有限公司 | Antistatic flash-spun composite non-woven fabric and preparation method thereof |
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