CN105642034A - Preparation method of aramid fiber filter bag and aramid fiber filter bag - Google Patents
Preparation method of aramid fiber filter bag and aramid fiber filter bag Download PDFInfo
- Publication number
- CN105642034A CN105642034A CN201610154480.6A CN201610154480A CN105642034A CN 105642034 A CN105642034 A CN 105642034A CN 201610154480 A CN201610154480 A CN 201610154480A CN 105642034 A CN105642034 A CN 105642034A
- Authority
- CN
- China
- Prior art keywords
- aramid fiber
- filter bag
- fiber filter
- preparation
- mouth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
- B29C65/103—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined direct heating both surfaces to be joined
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
- D06M2101/36—Aromatic polyamides
Abstract
The invention relates to the technical field of aramid fibers and in particular relates to a preparation method of an aramid fiber filter bag and the aramid fiber filter bag. According to the method, aramid fibers are used as fiber raw materials, and are sewed through a heat sealing process; a sewed part is coated with a silane coupling agent solution and the aramid fibers are aramid fibers 1313. With the adoption of the preparation method of the aramid fiber filter bag, provided by the invention, the problems that the surfaces of existing aramid fibers are inert, the bonding between the fibers is relatively weak at a room temperature, the fibers are directly carbonized and decomposed when the temperature is more than 400 DEG C and the like are solved, and the aramid fiber filter bag with strong power and high filtering precision is obtained.
Description
Technical field
The invention belongs to aramid fiber technical field, be specifically related to preparation method and the aramid fiber filter bag of a kind of aramid fiber filter bag.
Background technology
At present, general filter bag is all linear slit filter bag, but linear slit filter bag exists pinprick and gap at linear slit place, especially under long-term high pressure blow smelting operation deashing operation, the sewing position of linear slit filter bag, easily caused by bursting forth, causes dust to reveal, and makes soot emissions be difficult to up to standard. Heat seal process is adopted directly to be bonded together by filtrate, it is to avoid linear slit filter bag exists the phenomenon in pinprick and gap, it is possible to is greatly improved the filtering accuracy of filter bag, and can also save the cost of sewing thread.
But, the filtrate of heat seal technology can be adopted at present to only have PPS (polyphenylene sulfide) etc. to have the fibrous material of sharp melting point, aramid fiber 1313 lacks chemical active radical due to surface, fiber surface is smooth, and aramid fiber does not melt, temperature direct carbonization more than 400 DEG C is decomposed, and at high temperature bonding between fiber and fiber is more weak to cause it, thus aramid fiber filtrate carries out heat seal and there is bigger difficulty. Therefore, aramid fiber filtrate is carried out heat seal sewing there is major application value.
Summary of the invention
Invention broadly provides the preparation method of a kind of aramid fiber filter bag and the aramid fiber filter bag prepared by the method, solve that existing aramid fiber surface is inert, at high temperature bond more weak, temperature between fiber and fiber more than problems such as 400 DEG C of direct carbonization decomposition, obtain brute force, aramid fiber filter bag that filtering accuracy is high. Its technical scheme is as follows:
The preparation method of a kind of aramid fiber filter bag, with aramid fiber for fibrous raw material, is sewed up by heat seal process and forms, and at suture silane coating coupling agent solution, described aramid fiber is aramid fiber 1313.
Preferably, described silane coupler solution can be that silane coupling A-151 (VTES) dissolving obtains in organic solvent. Wherein, described organic solvent is volumetric concentration is the industrial alcohol of 99%, and silane coupling A-151 mass concentration in organic solvent is 0.5-10%.
Described silane coupler solution can also be that silane coupling A-151 obtains in water by adding emulsifying agent and catalyst emulsion dispersion. Wherein, it is that silane coupler, emulsifying agent and catalyst are dissolved mixing in the hot water, after forming stable emulsion, adding its concentration of dilute to the mass concentration of silane coupling A-151 again is 2-10ml/L, the mass concentration of emulsifying agent is 0.3-2ml/L, and the mass concentration of catalyst is 0.05-1.55g/L.
Wherein, described emulsifying agent is O/W type anionic emulsifier or O/W type nonionic emulsifier, and described O/W type anionic emulsifier is one or more in triethanolamine soap, polyoxyethylated alkyl phenol sulfate and alkylsulfonate; Described O/W type nonionic emulsifier is one or more in polyoxyethylene sorbitan monooleate dehydration, polyoxyethylene carboxylate phosphate ester, polyoxyethylene aliphatic alcohol ether and polyoxyethylene polyoxypropylene benzylbiphenyl 2, 2-Oxydiphenol.
Described catalyst is one or more in the acetate of inorganic salt such as zinc, lead, barium etc. and metal soap such as soap.
Preferably, what the method for silane coating coupling agent solution was concrete is, a () silane coupler solution has been prepared after, it is placed in sizing material machine, under the effect of gear pump, control dosage and the osmotic pressure of sizing material, make silane coupler solution penetrate into and under filtrate, sew up mouth (1), and be evenly applied to aramid fiber raw material surface, lower stitching mouth (1) place, gluing speed is 5-8m/min, is then dried process;
B () is by sewing up mouth (2) on the Hot-blast Heating of 400-600 DEG C so that it is be in softening, molten condition, makes lower stitching mouth (1) and the bonding of upper stitching mouth (2) then through the pressure roller that line pressure is 4.5-5.5kg/cm.
Adopt above-mentioned aramid fiber filter bag and preparation method thereof, the invention have the advantages that
(1) aramid fiber filtrate is after silane coupler heat of the present invention sews up processing, efficiently solve aramid fiber filtrate at high temperature bonding this problem more weak between fiber and fiber, improve the seals of aramid fiber filtrate, aramid fiber filtrate heat seal brute force after improvement is 1100N, reaches ordinary sewing desirable strength;
(2) the silane coupler solution preparation of the present invention is simple, and the solution quality prepared is stable, can life-time service, surface treatment mode is production line online treatment, is beneficial to raising production efficiency, operates walk away safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of the aramid fiber filter bag in the present invention.
Wherein, 1, lower stitching mouth, 2, upper stitching mouth.
Detailed description of the invention
Embodiment 1
(1) prepared by filtrate: to use fineness be 14 ��m, the aramid fiber of length 55mm prepares filtrate, and upper and lower two-layer is nonwoven layers, and middle one layer is composited by water jet process for aramid fiber base fabric, and grammes per square metre is 500g/m2, thickness is 1.8mm;
(2) preparation silane coupler solution: silane coupling A-1514.2ml/L, emulsifying agent 0.6ml/L, catalyst 0.10g/L, by agitated for each raw material in formula uniformly after add water and be assigned to 1 liter, make dressing liquid uniform through mechanical agitation;
Wherein emulsifying agent is Tween 80, and catalyst is lead acetate;
(3) surface-coated: the silane coupler solution configured is placed in sizing material machine, dosage and the osmotic pressure of sizing material is controlled under the effect of gear pump, make inorganic agent penetrate into and under filtrate, sew up mouth 1, and it is evenly applied to aramid fiber raw material surface, lower stitching mouth 1 place, wherein, the speed of gluing is 5.5m/min, is dried process again through drying plant;
(4) heat seal process: the aramid felt processed is carried out heat seal process through heat-sealing machine, heat-seal temperature is 550 DEG C, speed is 5.5m/min, heating is sewed up mouth 2, it is at softening, molten condition, makes lower stitching mouth 1 bond with upper stitching mouth 2 then through the pressure roller that line pressure is 5kg/cm.
The aramid fiber heat seal felt brute force crossed through silane coupling A-151 solution-treated is in Table 1.
Fig. 1 is the structural representation of the aramid fiber filter bag prepared by the method for the present embodiment, and described aramid fiber filter bag is runway shape, and lower stitching mouth 1 and the docking of upper stitching mouth 2 form aramid fiber filter bag.
Embodiment 2
(1) prepared by filtrate: to use fineness be 14 ��m, the aramid fiber of length 55mm prepares filtrate, and upper and lower two-layer is nonwoven layers, and middle one layer is composited by water jet process for aramid fiber base fabric, and grammes per square metre is 500g/m2, thickness is 1.8mm;
(2) preparation silane coupler solution: silane coupling A-151 mass concentration is 2%, and industrial alcohol concentration is 99%, makes solution mix homogeneously with ethanol through mechanical agitation silane coupling A-151;
(3) surface-coated: the silane coupler solution configured is placed in sizing material machine, dosage and the osmotic pressure of sizing material is controlled under the effect of gear pump, make inorganic agent penetrate into and under filtrate, sew up mouth 1, and it is evenly applied to aramid fiber raw material surface, lower stitching mouth 1 place, wherein, the speed of gluing is 5.5m/min, is dried process again through drying plant;
(4) heat seal process: the aramid felt processed is carried out heat seal process through heat-sealing machine, heat-seal temperature is 400 DEG C, speed is 5.5m/min, heating is sewed up mouth 2, it is at softening, molten condition, makes lower stitching mouth 1 bond with upper stitching mouth 2 then through the pressure roller that line pressure is 5kg/cm.
The aramid fiber heat seal felt brute force crossed through silane coupling A-151 solution-treated is in Table 1.
Embodiment 3
(1) prepared by filtrate: to use fineness be 14 ��m, the aramid fiber of length 55mm prepares filtrate, and upper and lower two-layer is nonwoven layers, and middle one layer is composited by water jet process for aramid fiber base fabric, and grammes per square metre is 500g/m2, thickness is 1.8mm;
(2) preparation silane coupler solution: silane coupling A-15110ml/L, emulsifying agent 2ml/L, catalyst 1.55g/L, by agitated for each raw material in formula uniformly after add water and be assigned to 1 liter, make dressing liquid uniform through mechanical agitation;
Wherein emulsifying agent is polyoxyethylene polyoxypropylene benzylbiphenyl 2, 2-Oxydiphenol, and catalyst is soap;
(3) surface-coated: the silane coupler solution configured is placed in sizing material machine, dosage and the osmotic pressure of sizing material is controlled under the effect of gear pump, make inorganic agent penetrate into and under filtrate, sew up mouth 1, and it is evenly applied to aramid fiber raw material surface, lower stitching mouth 1 place, wherein, the speed of gluing is 5.5m/min, is dried process again through drying plant;
(4) heat seal process: the aramid felt processed is carried out heat seal process through heat-sealing machine, heat-seal temperature is 600 DEG C, speed is 5.5m/min, heating is sewed up mouth 2, it is at softening, molten condition, makes lower stitching mouth 1 bond with upper stitching mouth 2 then through the pressure roller that line pressure is 4.5kg/cm.
The aramid fiber heat seal felt brute force crossed through silane coupling A-151 solution-treated is in Table 1.
Comparative example 1
(1) prepared by filtrate: to use fineness be 14 ��m, the aramid fiber of length 55mm prepares filtrate, and upper and lower two-layer is nonwoven layers, and middle one layer is composited by water jet process for aramid fiber base fabric, and grammes per square metre is 500g/m2, thickness is 1.8mm;
(2) heat seal process: the aramid felt processed is carried out heat seal process through heat-sealing machine, heat-seal temperature is 600 DEG C, speed is 5.5m/min, heating is sewed up mouth 2, it is at softening, molten condition, makes lower stitching mouth 1 bond with upper stitching mouth 2 then through the pressure roller that line pressure is 4.5kg/cm.
The aramid fiber heat seal felt brute force crossed without silane coupling A-151 solution-treated is in Table 1.
Table 1 the performance test results
| Group | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 |
| Tensile strength (N) | 1200 | 1100 | 1200 | 750 |
As shown in Table 1, the aramid fiber heat seal felt brute force crossed through silane coupling A-151 solution-treated in embodiment 1-3 is substantially better than the aramid fiber crossed without silane coupling A-151 solution-treated.
It will be apparent to those skilled in the art that can technical scheme as described above and design, make other various corresponding changes and deformation, and all these change and deformation all should belong within the protection domain of the claims in the present invention.
Claims (9)
1. the preparation method of an aramid fiber filter bag, it is characterised in that: with aramid fiber for fibrous raw material, being sewed up by heat seal process and form, at suture silane coating coupling agent solution, described aramid fiber is aramid fiber 1313.
2. the preparation method of aramid fiber filter bag according to claim 1, it is characterised in that: described silane coupler solution is that silane coupling A-151 dissolving obtains in organic solvent.
3. the preparation method of aramid fiber filter bag according to claim 2, it is characterised in that: described organic solvent is volumetric concentration is the industrial alcohol of 99%, and silane coupling A-151 mass concentration in organic solvent is 0.5-10%.
4. the preparation method of aramid fiber filter bag according to claim 1, it is characterised in that: described silane coupler solution is that silane coupling A-151 obtains in water by adding emulsifying agent and catalyst emulsion dispersion.
5. the preparation method of aramid fiber filter bag according to claim 4, it is characterised in that: the mass concentration of described silane coupling A-151 is 2-10ml/L, and the mass concentration of emulsifying agent is 0.3-2ml/L, and the mass concentration of catalyst is 0.05-1.55g/L.
6. the preparation method of aramid fiber filter bag according to claim 4, it is characterized in that: described emulsifying agent is O/W type anionic emulsifier or O/W type nonionic emulsifier, described O/W type anionic emulsifier is one or more in triethanolamine soap, polyoxyethylated alkyl phenol sulfate and alkylsulfonate; Described O/W type nonionic emulsifier is one or more in polyoxyethylene sorbitan monooleate dehydration, polyoxyethylene carboxylate phosphate ester, polyoxyethylene aliphatic alcohol ether and polyoxyethylene polyoxypropylene benzylbiphenyl 2, 2-Oxydiphenol.
7. the preparation method of aramid fiber filter bag according to claim 4, it is characterised in that: described catalyst is one or more in the acetate of zinc, plumbous acetate, the acetate of barium and metallic soap.
8. the preparation method of aramid fiber filter bag according to claim 1, it is characterised in that: the method for silane coating coupling agent solution is,
A () silane coupler solution has been prepared after, it is placed in sizing material machine, dosage and the osmotic pressure of sizing material is controlled under the effect of gear pump, make silane coupler solution penetrate into and under filtrate, sew up mouth (1), and it is evenly applied to aramid fiber raw material surface, lower stitching mouth (1) place, gluing speed is 5-8m/min, is then dried process;
B () is by sewing up mouth (2) on the Hot-blast Heating of 400-600 DEG C so that it is be in softening, molten condition, makes lower stitching mouth (1) and the bonding of upper stitching mouth (2) then through the pressure roller that line pressure is 4.5-5.5kg/cm.
9. an aramid fiber filter bag, the preparation method of the aramid fiber filter bag described in any one of claim 1-8 prepares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610154480.6A CN105642034B (en) | 2016-03-17 | 2016-03-17 | The preparation method and aramid fiber filter bag of aramid fiber filter bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610154480.6A CN105642034B (en) | 2016-03-17 | 2016-03-17 | The preparation method and aramid fiber filter bag of aramid fiber filter bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105642034A true CN105642034A (en) | 2016-06-08 |
| CN105642034B CN105642034B (en) | 2017-12-05 |
Family
ID=56494124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610154480.6A Active CN105642034B (en) | 2016-03-17 | 2016-03-17 | The preparation method and aramid fiber filter bag of aramid fiber filter bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105642034B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854264A (en) * | 2018-07-16 | 2018-11-23 | 江苏鼎盛滤袋有限公司 | A kind of production method of aramid fiber filter cloth |
| WO2019137417A1 (en) * | 2018-01-12 | 2019-07-18 | 山东盛华投资有限责任公司 | Method and device for gluing longitudinal seam on cylindrical bag body, and filtering bag |
| CN110029483A (en) * | 2018-01-12 | 2019-07-19 | 山东盛华投资有限责任公司 | A kind of special equipment for filter bag tube-shape bag body longitudinal joint gluing |
| CN113769490A (en) * | 2021-08-19 | 2021-12-10 | 江苏鼎盛滤袋有限公司 | Composite hot-melt filter bag and preparation process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003253562A (en) * | 2002-03-05 | 2003-09-10 | Teijin Ltd | Reinforcing fiber, method for producing the same and concrete material reinforced by the same fiber |
| CN102628222A (en) * | 2012-04-07 | 2012-08-08 | 江苏东方滤袋有限公司 | Preparation method of pyrohydrolysis-resistant meta-position aramid fiber material |
| CN103225210A (en) * | 2013-05-17 | 2013-07-31 | 苏州大学 | Surface grafting modified aramid fiber and preparation method thereof |
| CN104436866A (en) * | 2014-10-08 | 2015-03-25 | 上海金由氟材料股份有限公司 | Preparation method of pinhole-free dedusting filter bag |
| CN105058773A (en) * | 2015-07-21 | 2015-11-18 | 安徽省元琛环保科技有限公司 | Hot melting seaming technique for polytetrafluoroethylene composite filter bag |
| CN105148611A (en) * | 2015-07-21 | 2015-12-16 | 安徽省元琛环保科技有限公司 | Aramid fiber composite filter material with high filtration performance and preparation method thereof |
-
2016
- 2016-03-17 CN CN201610154480.6A patent/CN105642034B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003253562A (en) * | 2002-03-05 | 2003-09-10 | Teijin Ltd | Reinforcing fiber, method for producing the same and concrete material reinforced by the same fiber |
| CN102628222A (en) * | 2012-04-07 | 2012-08-08 | 江苏东方滤袋有限公司 | Preparation method of pyrohydrolysis-resistant meta-position aramid fiber material |
| CN103225210A (en) * | 2013-05-17 | 2013-07-31 | 苏州大学 | Surface grafting modified aramid fiber and preparation method thereof |
| CN104436866A (en) * | 2014-10-08 | 2015-03-25 | 上海金由氟材料股份有限公司 | Preparation method of pinhole-free dedusting filter bag |
| CN105058773A (en) * | 2015-07-21 | 2015-11-18 | 安徽省元琛环保科技有限公司 | Hot melting seaming technique for polytetrafluoroethylene composite filter bag |
| CN105148611A (en) * | 2015-07-21 | 2015-12-16 | 安徽省元琛环保科技有限公司 | Aramid fiber composite filter material with high filtration performance and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 孟碧等: "用硅烷偶联剂改性芳纶及高强聚乙烯纤维研究", 《纺织科技进展》 * |
| 言宏元: "《非织造工艺学》", 31 May 2015, 中国纺织出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019137417A1 (en) * | 2018-01-12 | 2019-07-18 | 山东盛华投资有限责任公司 | Method and device for gluing longitudinal seam on cylindrical bag body, and filtering bag |
| CN110029483A (en) * | 2018-01-12 | 2019-07-19 | 山东盛华投资有限责任公司 | A kind of special equipment for filter bag tube-shape bag body longitudinal joint gluing |
| CN111447984A (en) * | 2018-01-12 | 2020-07-24 | 山东微克环保科技有限公司 | Method and equipment for gluing longitudinal seams of cylindrical bag body and filter bag |
| CN108854264A (en) * | 2018-07-16 | 2018-11-23 | 江苏鼎盛滤袋有限公司 | A kind of production method of aramid fiber filter cloth |
| CN108854264B (en) * | 2018-07-16 | 2023-10-27 | 江苏鼎盛滤袋有限公司 | Production method of aramid fiber filter cloth |
| CN113769490A (en) * | 2021-08-19 | 2021-12-10 | 江苏鼎盛滤袋有限公司 | Composite hot-melt filter bag and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105642034B (en) | 2017-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105642034A (en) | Preparation method of aramid fiber filter bag and aramid fiber filter bag | |
| CN103952860A (en) | Manufacturing technology for non-woven fabric | |
| CN106048889B (en) | A kind of spunlace non-woven cloth of 100% regenerated fiber | |
| CN105297443B (en) | A kind of blended material of high acetic acid fiber content and preparation method thereof | |
| CN110130116A (en) | The preparation process of alkaline-resisting PTFE fiber, PPS fiber blend Nomex | |
| CN207632988U (en) | A kind of electrospinning device of large-scale production mask filter membrane | |
| CN102061567A (en) | Method and device for producing nonwoven fabric by thermal-calendering soft and smooth finishing | |
| CN108625182A (en) | The preparation method of titania hydrosol, top finish liquid, fabric and fabric | |
| CN107245882A (en) | A kind of production technology of wear-resisting glass-fiber-fabric | |
| CN105749623B (en) | A kind of preparation method of the grease proofing polyphenyl thioether filter material of high-effective water-proof | |
| CN106606904A (en) | Preparation method for stitch gluing type flue gas filter bag | |
| CN109457319A (en) | A kind of preparation method of the porous staple fiber of polypropylene | |
| CN108610496A (en) | A kind of production technology for the regenerated cellulose film improving printing plyability | |
| CN111850825A (en) | Functional needle-punched composite non-woven fabric and manufacturing process thereof | |
| CN106012073B (en) | The production method and production line of silicon nitrogen flame retardant viscose fiber | |
| CN101984154B (en) | Method for preparing water-repellent polyester fibers | |
| CN108286194A (en) | A kind of scratch resistance canvas and its production method | |
| CN103966676A (en) | Nano-film spinning device | |
| CN104372616B (en) | A kind of finishing agent improving polyster fibre filtrate resistant to hydrolysis performance and method for sorting thereof | |
| CN205974958U (en) | Compound web formation equipment of non -woven fabrics | |
| CN110938883A (en) | Processing method of wormwood antibacterial yarn | |
| CN109763346A (en) | The preparation method of a kind of non-woven filtrate of no base fabric and without the non-woven filtrate of base fabric | |
| CN106007408B (en) | Direct roving sizing agent of composite glass fiber and preparation method thereof | |
| CN108486904A (en) | A kind of advertising scroll cloth and its production method | |
| CN111321479A (en) | Preparation method of graphene/polyacrylonitrile spinning solution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |