CN106268027A - A kind of high temperature filter material and its preparation method and application - Google Patents
A kind of high temperature filter material and its preparation method and application Download PDFInfo
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- CN106268027A CN106268027A CN201610770809.1A CN201610770809A CN106268027A CN 106268027 A CN106268027 A CN 106268027A CN 201610770809 A CN201610770809 A CN 201610770809A CN 106268027 A CN106268027 A CN 106268027A
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- high temperature
- filter cloth
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- fiber
- compound filter
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-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- 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
- D04H1/4282—Addition polymers
- D04H1/4318—Fluorine 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
- D04H1/42—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
- D04H1/4326—Condensation or reaction polymers
-
- 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
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0216—Bicomponent or multicomponent fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0636—Two or more types of fibres present in the filter material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/064—The fibres being mixed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1283—Stability index
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
- B01D2273/20—High temperature filtration
Abstract
A kind of high temperature filter material and its preparation method and application, relates to a kind of filtering material.Described high temperature filter material is compound filter cloth or the compound filter cloth of multiple structure of single layer structure, and the component of described compound filter cloth is by mass percentage: Powerleader synthetic fibre fiber is 10%～90%, and polytetrafluoroethylene fibre is 10%～90%.The preparation method of the compound filter cloth of the single layer structure in high temperature filter material；Mixing and opening raw materials combing lapping multilamellar web layer acupuncture sizing press polish finished product；The preparation method of the compound filter cloth of the multiple structure in described high temperature filter material: mixing and opening raw materials combing lapping multilamellar fibre web lamination thorn multiple thorn sizing press polish finished product.The application of high temperature filter material is that the compound filter cloth of single layer structure or the compound filter cloth of multiple structure are used for high temperature fume dust removal equipment.Having high intensity, certain density and the feature of elasticity, in omnidirectional 3-D solid structure, omnidirectional 3-D solid structure can be single layer structure or multiple structure.
Description
Technical field
The present invention relates to a kind of filtering material, especially relate to a kind of high temperature filter material and its preparation method and application.
Background technology
Pure Powerleader synthetic fibre fibrosis formal name used at school poly-virtue diazole fiber (being called for short POD fiber, trade name Powerleader synthetic fibre), Powerleader synthetic fibre is nothing
Organic fiber, can under 250 DEG C of high temperature life-time service, can at 300 DEG C the short time use, moment use temperature up to 400 DEG C.
High temperature dimensional stability is good: at 300 DEG C, dry-hot shrinkage is 1%, is nearly free from contraction when burning.Chemical-resistance: remove
Outside concentrated sulphuric acid, oleum and trifluoroacetic acid, Powerleader synthetic fibre does not dissolves in any of solvent, and organic solvent resistance is abnormal prominent
Go out；Powerleader synthetic fibre chemical constitution is relatively stable, and alkali resistance is better than acid resistance；Fiber has a pliability, high extension at break, not brittle failure,
It is easy to non-woven fabrics processing.
But owing to Powerleader synthetic fibre fiber is the most poor to the corrosion resistance of some chemical substances, in particular for acid high temperature
Environment filtrate is easily corroded, and therefore, the filtering material using simple Powerleader synthetic fibre fiber to make exists drawbacks described above.
And polytetrafluoroethylene fibre is the most high temperature resistant, its fiber melt is 327 DEG C, actually used temperature 240～260 DEG C；
Polytetrafluoroethylene fibre chemical stability is fabulous, has an advantage such as resistance to high humidity, corrosion-resistant, hydrolysis, can bear simultaneously various by force
The oxide etch of oxide, has again good low abrasiveness, and preferable flex stiffiness, corrosion resistance is better than other synthetic fibers
Kind, but poor thermal conductivity, wearability is the most bad, and thermal coefficient of expansion is big, is easily generated electrostatic.So pure polytetrafluoroethylene fibre is inconvenient
Being processed into high-temperature-resistant filtering material in non-woven fabrics, and pure polyfluortetraethylefiber fiber filter material tensile strength is poor, wearability is bad, shadow
Ring the service life of filtrate.
Owing to politef (PTFE) fiber has the performances such as good folding resistance, corrosion resistance, Powerleader synthetic fibre has resistance to
Warm nature, strength is high, and wearability is good, and the performances such as spinnability is good, as mixed two kinds of raw materials of polytetrafluoroethylene fibre and Powerleader synthetic fibre fiber
Conjunction is fabricated to high temperature filter material (filter cloth) will have physically better chemical property, can be by Powerleader synthetic fibre fiber and polytetrafluoroethylene fibre
Advantage merges.
Summary of the invention
One of the object of the invention is to provide a kind of spinnability of raw material, machinability, corrosion resistance, wear-resisting of significantly improving
Property and the high temperature filter material of fatigue durability；
The two of the purpose of the present invention are to provide the preparation method of described high temperature filter material；
The three of the purpose of the present invention are to provide the application of described high temperature filter material.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of high temperature filter material, described high temperature filter material is compound filter cloth or the compound filter cloth of multiple structure of single layer structure, institute
The component stating compound filter cloth is by mass percentage: Powerleader synthetic fibre fiber is 10%～90%, polytetrafluoroethylene fibre be 10%～
90%.
The preparation method of the compound filter cloth of the single layer structure in described high temperature filter material；Including following operation:
Mixing and opening raw materials combing lapping multilamellar web layer acupuncture sizing press polish finished product；Wherein,
Raw material mixed processes is: after being mixed with PTFE fiber by Powerleader synthetic fibre fiber according to the above ratio, through mixing willow and hair, limit and burr
Add water, form mixing raw material, then stand, allow composite fibre fully absorb moisture content, eliminate fiber electrostatic, prepare Powerleader synthetic fibre with
The composite fibre of politef；The common prescription condition of each operation is: prepare the relative humidity of environment be preferably 60%～
80%；Production equipment all uses metal material to be made, it is ensured that sufficiently conducting and heat radiation, and will be adequately grounded；In combing
The feeding end of machine and lapping machine input are respectively mounted anionic wind rod, and upper fleece conveyer belt uses the transmission curtain with electric conductivity,
Ensure fully to eliminate fiber electrostatic and heat.
Further: described in add water preferably with spray form spray water；The moisture content of described composite fibre is composite fibre total amount
1%～5%；Described time of repose is 24h.
The preparation method of the compound filter cloth of the multiple structure in described high temperature filter material；Including following operation:
Mixing and opening raw materials combing lapping multilamellar fibre web lamination thorn multiple thorn sizing press polish finished product；
Wherein, raw material mixed processes is: mixed with PTFE fiber by Powerleader synthetic fibre fiber according to the above ratio, through mixing willow and hair, Bian He
Burr add water, and form mixing raw material, then stand, and allow composite fibre fully absorb moisture content, eliminate fiber electrostatic, prepare Powerleader
Synthetic fibre and the composite fibre of politef；The common prescription condition of each operation is: the relative humidity preparing environment is preferably 60%
～80%；Production equipment all uses metal material to be made, it is ensured that sufficiently conducting and heat radiation, and will be adequately grounded；At comb
The feeding end of reason machine and lapping machine input are respectively mounted anionic wind rod；Upper fleece conveyer belt uses the transmission with electric conductivity
Curtain, it is ensured that fully eliminate fiber electrostatic and heat.
Further: described in add water preferably with spray form spray water；The moisture content of described composite fibre is composite fibre total amount
1%～5%；Described time of repose is 24h.
The application of described high temperature filter material, is that the compound filter cloth of single layer structure or the compound filter cloth of multiple structure are used for high temperature
Smoke dust-removing equipment.
Compared with the prior art, there is advantages that
By the acupuncture felt-cloth made by above-mentioned manufacture method, there is high intensity, certain density and the feature of elasticity, in nothing
Directional three-dimensional stereochemical structure, omnidirectional 3-D solid structure can be single layer structure or multiple structure.In complications inside its fibrous layer
Path, pore-size is little, and voidage is up to more than 75%, and resistance is little, and permeability is good, and efficiency of dust collection is more than 99.9%.By
In made acupuncture felt-cloth after the post processings such as sizing, press polish and surface process, its surfacing is smooth, is difficult to by dust
Blocked, more excellent physical and chemical performance can be realized.
Powerleader synthetic fibre fiber and PTFE fiber combined high temperature filtrate, whether its corrosion resistance, wearability and fatigue durability,
Or its tensile strength is better than simple Powerleader synthetic fibre fiber or pure PTFE fiber filtrate, also has bright with other high-temperature filter material
Aobvious advantage, therefore Powerleader synthetic fibre fiber and polytetrafluoroethylene fibre bi-material are combined and have good enhancement effect, and this kind high
Temperature Nomex filtering material uses in high temperature fume dust removal equipment has good effect, and service life is long.The present invention can have
Effect ground improves the service life of filtering material, and acid and alkali-resistance degree is high, and the rate of filtration is fast, and pollution control is effective, meets flue gas
The needs of high temperature filtration industry, are applicable to cement industry, incinerator, smelting iron and steel factory, coking furnace thermal power plant, white carbon black
The fields such as the filtering high-temperature flue gas of the industry such as work, metallurgy, coal-burning boiler, refractory material, are that a kind of very good high temperature is combined
Filtering material.
Owing to the dielectric constant of water is little, the dielectric constant of fiber is big, and the water absorption increasing fibrous raw material (provides raw fibre
Moisture content numerical range), reduce the resistance value of raw fibre, increase raw fibre electric conductivity, eliminate electrostatic；The most fine
Hydrone in dimension raw material becomes the friction heat of steam state absorbable fibre and equipment room from liquid, reduces fiber heating, it is simple to
Unclogging and readjusting into net, nonwoven manufactures high-temperature-resistant filtering material.So increasing the water absorption of raw material by the following method.Powerleader synthetic fibre
Fiber contains hydrophilic group, and impalpable structure is main, low-crystallinity, and its water absorbing capacity is far above PTFE fiber, and it mixes with PTFE
The water absorption of incompatible increase fibrous raw material.
Powerleader synthetic fibre fiber loosens, and fiber surface is coarse, and micropore is many, and density is little, and there are a lot of pore, specific surface area in surface
Greatly, and PTFE fiber density is big, smooth surface, and the finest and close, PTFE water absorbing capacity is far below other fiber, Powerleader synthetic fibre and PTFE
Mixing increases the water absorption of raw material.
Regulating workshop envionmental humidity 60%～80%, hydrone concentration increases, fibers adsorption outlet capacity
Being greatly reinforced, hydrone easily enters fibrous inside gap hole；But relative humidity is not suitable for again the highest, as relative humidity is the highest,
Moisture fibrous raw material unnecessary in environment cannot absorb, and unnecessary moisture can be attached to roller surfaces, occurs raw fibre roll banding existing
As.
Detailed description of the invention
Embodiment 1
1), after using 50% Powerleader synthetic fibre fiber+50%PTFE fiber mixing, add water through mixing willow and hair, limit and burr,
Employing spray form adds water, and by 5% water spray of fiber total amount, forms mixing raw material, stands 24h, allow composite fibre fully absorb water
Part.
Embodiment 2
1), after for example with 30% Powerleader synthetic fibre fiber+70%PTFE fiber mixing, add through mixing willow and hair, limit and burr
Water, uses spray form to add water, and by 5% water spray of fiber total amount, forms mixing raw material, stands 24h, allow composite fibre fully absorb
Moisture content.
1), after for example with 60% Powerleader synthetic fibre fiber+40%PTFE fiber mixing, add through mixing willow and hair, limit and burr
Water, uses spray form to add water, and by 5% water spray of fiber total amount, forms mixing raw material, stands 24h, allow composite fibre fully absorb
Moisture content.
The application of high temperature filter material prepared by the present invention, is the compound filter cloth of the compound filter cloth by single layer structure or multiple structure
For high temperature fume dust removal equipment.
Claims (6)
1. a high temperature filter material, for compound filter cloth or the compound filter cloth of multiple structure of single layer structure, it is characterised in that described multiple
The component closing filter cloth is by mass percentage: Powerleader synthetic fibre fiber is 10%～90%, and polytetrafluoroethylene fibre is 10%～90%.
The preparation method of the compound filter cloth of the single layer structure in a kind of high temperature filter material the most as claimed in claim 1, it is characterised in that
The component of described compound filter cloth is by mass percentage: Powerleader synthetic fibre fiber is 10%～90%, and polytetrafluoroethylene fibre is 10%
～90%；Described preparation method includes following operation:
Mixing and opening raw materials combing lapping multilamellar web layer acupuncture sizing press polish finished product；Wherein, raw material
Mixed processes is: after being mixed with PTFE fiber by Powerleader synthetic fibre fiber in proportion, add water through mixing willow and hair, limit and burr, shape
Become mixing raw material, then stand, allow composite fibre fully absorb moisture content, eliminate fiber electrostatic, prepare Powerleader synthetic fibre and polytetrafluoro
The composite fibre of ethylene；The common prescription condition of each operation is: the relative humidity preparing environment is preferably 60%～80%；Produce
Equipment all uses metal material to be made, it is ensured that sufficiently conducting and heat radiation, and will be adequately grounded；Feeding end at carding machine
Being respectively mounted anionic wind rod with lapping machine input, upper fleece conveyer belt uses the transmission curtain with electric conductivity, it is ensured that fully disappear
Except fiber electrostatic and heat.
The preparation method of the compound filter cloth of the single layer structure in a kind of high temperature filter material the most as claimed in claim 2, it is characterised in that
The described employing spray form water spray that adds water；The moisture content of described composite fibre is the 1%～5% of composite fibre total amount；Described standing
Time is 24h.
The preparation method of the compound filter cloth of the multiple structure in a kind of high temperature filter material the most as claimed in claim 1, it is characterised in that
The component of described compound filter cloth is by mass percentage: Powerleader synthetic fibre fiber is 10%～90%, and polytetrafluoroethylene fibre is 10%
～90%；Described preparation method includes following operation:
Mixing and opening raw materials combing lapping multilamellar fibre web lamination thorn multiple thorn sizing press polish finished product；Its
In, raw material mixed processes is: is mixed with PTFE fiber by Powerleader synthetic fibre fiber in proportion, adds through mixing willow and hair, limit and burr
Water, forms mixing raw material, then stands, and allows composite fibre fully absorb moisture content, eliminates fiber electrostatic, prepares Powerleader synthetic fibre and gathers
The composite fibre of tetrafluoroethene；The common prescription condition of each operation is: the relative humidity preparing environment is preferably 60%～80%；
Production equipment all uses metal material to be made, it is ensured that sufficiently conducting and heat radiation, and will be adequately grounded；Feeding at carding machine
Enter end and lapping machine input is respectively mounted anionic wind rod；Upper fleece conveyer belt uses the transmission curtain with electric conductivity, it is ensured that fill
Divide and eliminate fiber electrostatic and heat.
The preparation method of the compound filter cloth of the multiple structure in a kind of high temperature filter material the most as claimed in claim 4, it is characterised in that
The described employing spray form water spray that adds water；The moisture content of described composite fibre is the 1%～5% of composite fibre total amount；Described standing
Time is 24h.
The application of a kind of high temperature filter material the most as claimed in claim 1, is by the compound filter cloth of single layer structure or answering of multiple structure
Close filter cloth for high temperature fume dust removal equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770809.1A CN106268027A (en) | 2016-08-30 | 2016-08-30 | A kind of high temperature filter material and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770809.1A CN106268027A (en) | 2016-08-30 | 2016-08-30 | A kind of high temperature filter material and its preparation method and application |
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| CN106268027A true CN106268027A (en) | 2017-01-04 |
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ID=57675795
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610770809.1A Pending CN106268027A (en) | 2016-08-30 | 2016-08-30 | A kind of high temperature filter material and its preparation method and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029446A (en) * | 2019-05-28 | 2019-07-19 | 宜昌市欣龙卫生材料有限公司 | A kind of superfine fibre spunlace non-woven cloth preparation method |
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| Title |
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Cited By (1)
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|---|---|---|---|---|
| CN110029446A (en) * | 2019-05-28 | 2019-07-19 | 宜昌市欣龙卫生材料有限公司 | A kind of superfine fibre spunlace non-woven cloth preparation method |
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Application publication date: 20170104 |