CN102912677A - Air-filtration paper for automobile engine filter and preparation method of air-filtration paper - Google Patents
Air-filtration paper for automobile engine filter and preparation method of air-filtration paper Download PDFInfo
- Publication number
- CN102912677A CN102912677A CN2012103512873A CN201210351287A CN102912677A CN 102912677 A CN102912677 A CN 102912677A CN 2012103512873 A CN2012103512873 A CN 2012103512873A CN 201210351287 A CN201210351287 A CN 201210351287A CN 102912677 A CN102912677 A CN 102912677A
- Authority
- CN
- China
- Prior art keywords
- parts
- filter
- paper
- automobile engine
- air
- 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
Landscapes
- Paper (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses air-filtration paper for an automobile engine filter and a preparation method of the air-filtration paper. The air-filtration paper for the automobile engine filter is prepared from the following materials in parts by weight: 60-70 parts of hardwood pulp, 30-40 parts of cotton pulp, 10-15 parts of modified polyester fiber, 2-5 parts of nanocarbon, 1-3 parts of kaolin, 1-2 parts of lime milk, 2-4 parts of modified zealite sieve, 0.5-0.8 parts of water talcum powder, 3-4 parts of polyacrylic emulsion, 2-5 parts of polyvinyl acetate emulsion, 0.5-1 part of sodium laurylsulfate, 0.5-1 part of silane coupling agent DL171, 0.4-0.8 parts of sodium laurylsulfate and 4-6 parts of dialdehyde starch. The filtration paper prepared by the method has the advantages of good water permeability, large filter area, small maximum aperture, high filter precision, high water tolerance, strong bursting strength, thermostability and the like, has a stable performance index at a normal temperature under a high-temperature work condition, and has better effects of temperature resistance and filtering, and filtering efficiency can be up to 99.98%.
Description
Technical field
The present invention relates to a kind of filter paper of filter, be specifically related to a kind of filter of automobile engine air paper and preparation method thereof.
Background technology
Automobile air filter paper is the core material of making air cleaner of vehicle engine; because air filter is arranged in the gas handling system of engine; and engine when work usually can amplification quantity heat, wish usually that therefore this air filtration media possesses good strainability and higher filtering efficiency and certain heat-resisting quantity, WATER RESISTANCE and bursting strength.Existing Adsorption of Filter Paper is relatively poor, and strainability is low, thereby causes filtering efficiency low, can only filtering machine oil in the impurity of 50-60%; Also to have a heat-resisting quantity poor for existing filter paper in addition, poor water resistance, the shortcoming such as tensile strength is low, bursting strength is poor, the service life of having limited filter paper.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of filter of automobile engine air paper and preparation method thereof is provided, improve the performances such as the strainability of filter paper and high temperature resistant, bursting strength, thereby improve the filtering efficiency of filter paper and prolong service life of filter paper.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of filter of automobile engine air paper is made by the raw material of following weight portion: hardwood pulp 60-70, cotton pulp 30-40, modified polyester fibre 10-20, nano-sized carbon 2-5, kaolin 1-3, milk of lime 1-2, modified zeolite molecular sieve 2-4, neatly stone flour 0.5-0.8, acrylic emulsion 3-4, polyvinyl acetate emulsion 2-5, sldium lauryl sulfate 0.5-1, silane coupler DL171 0.5-1, sldium lauryl sulfate 0.4-0.8, dialdehyde starch 4-6.
Described modified polyester fibre adopts in polyster fibre and adds 3-5% active carbon master batch, 6-8% resurrection glass fibre, 1-2% activated alumina, prepares modified polyester fibre by spinning technique after mixing.
Described modified zeolite molecular sieve has following method to make: granularity 20-40 purpose zeolite molecular sieve is dipped in the 0.1-0.2mol/L calcium nitrate solution, behind 70-80 ℃ of lower immersion 10-12h, filter, in 110-120 ℃ of oven dry, then in Muffle furnace, under 400-500 ℃, activate 4-5h, namely get modified zeolite molecular sieve.
The described filter of automobile engine preparation method of air paper may further comprise the steps:
(1) first modified zeolite molecular sieve, kaolin, nano-sized carbon, milk of lime are mixed, add again silane coupler DL171, fully stir 10-20min after, leave standstill 5-8min, then 100-120 ℃ of lower oven dry, obtain powder body material;
(2) hardwood pulp, cotton pulp, modified polyester fibre are weighed by proportioning respectively, put into pulper, adding an amount of sulfuric acid water size degradation to solid content is the slurry of 5-6%, adds dialdehyde starch and continues size degradation 1-2h, makes mixed slurry;
(3) powder body material that step (1) is made adds in the mixed slurry, add neatly stone flour, sldium lauryl sulfate, sldium lauryl sulfate, be heated to 70-80 ℃, stir, after fluffer is discongested, defibrination again, add an amount of water size mixing to solid content be 2-3%, the slurry that mixes up aspirates dehydration to the l Water Paper after the moulding under the vacuum condition of 0.05-0.08Mpa after the forming web moulding;
(4) dilution 10-20 after acrylic emulsion and the polyvinyl acetate emulsion mixing is doubly made maceration extract, the paper after the dehydration is dipped in floods 2-3h in the maceration extract, remove excessive maceration extract with pressure roll again;
(5) paper after will flooding is dried under 180-200 ℃ to mass dryness fraction 95-98%, and press polish and arrangement namely get filter of automobile engine air paper of the present invention.
The present invention and prior art have following beneficial effect:
The present invention has improved absorption property, the strainability of filter paper, thereby has improved the filtering efficiency of filter paper by to the modification of polyster fibre and modified zeolite molecular sieve, and modified polyester fibre has also improved the mechanical properties such as tensile strength, bursting strength of filter paper simultaneously.The filter paper that the present invention prepares has good water permeability, filter area is large, the maximum diameter of hole is little, filtering accuracy is high, resistance to water is high, bursting strength is strong, high temperature resistant, etc. advantage, filter efficiency reaches 99.98%, stable performance indications are arranged under normal temperature and worst hot case, have preferably heatproof and filter effect.
The specific embodiment
The present invention is further illustrated below in conjunction with specific embodiment.
Embodiment
A kind of filter of automobile engine air paper is made by the raw material of following weight portion: 70 parts of hardwood pulps, 40 parts of cotton pulps, 20 parts of modified polyester fibres, 5 parts of nano-sized carbon, 3 parts of kaolin, 2 parts of milk of limes, 4 parts of modified zeolite molecular sieves, 0.8 part of neatly stone flour, 4 parts of acrylic emulsions, 5 parts of polyvinyl acetate emulsions, 1 part of sldium lauryl sulfate, 1 part of silane coupler DL171,0.8 part of sldium lauryl sulfate, 6 parts of dialdehyde starchs.
Described modified polyester fibre adopts in polyster fibre and adds 5% active carbon master batch, 8% resurrection glass fibre, 2% activated alumina, prepares modified polyester fibre by spinning technique after mixing.
Described modified zeolite molecular sieve has following method to make: granularity 30 purpose zeolite molecular sieves are dipped in the 0.15mol/L calcium nitrate solution, behind 75 ℃ of lower immersion 12h, filter, in 120 ℃ of oven dry, then in Muffle furnace, under 400 ℃, activate 5h, namely get modified zeolite molecular sieve.
The described filter of automobile engine preparation method of air paper may further comprise the steps:
(1) first modified zeolite molecular sieve, kaolin, nano-sized carbon, milk of lime are mixed, add again silane coupler DL171, fully stir 20min after, leave standstill 8min, then 120 ℃ of lower oven dry, obtain powder body material;
(2) hardwood pulp, cotton pulp, modified polyester fibre are weighed by proportioning respectively, put into pulper, add an amount of sulfuric acid water size degradation to solid content and be 6% slurry, add dialdehyde starch and continue size degradation 1-2h, make mixed slurry;
(3) powder body material that step (1) is made adds in the mixed slurry, add neatly stone flour, sldium lauryl sulfate, sldium lauryl sulfate, be heated to 80 ℃, stir, after fluffer is discongested, defibrination again, add an amount of water size mixing to solid content be 2-3%, the slurry that mixes up aspirates dehydration to the l Water Paper after the moulding under the vacuum condition of 0.06Mpa after the forming web moulding;
(4) maceration extract is made in 20 times of dilutions after acrylic emulsion and the polyvinyl acetate emulsion mixing, the paper after the dehydration is dipped in floods 3h in the maceration extract, remove excessive maceration extract with pressure roll again;
(5) paper after will flooding is dried under 200 ℃ to mass dryness fraction 96%, and press polish and arrangement namely get filter of automobile engine air paper of the present invention.
After testing, the one-tenth paper air permeability of the filter paper that makes of the present invention is at 91L/m
2S, the maximum diameter of hole is 52 μ m, and average pore size is 33 μ m, and wet expansion is 0.5%, and bursting strength is 387KPa, and tensile strength is 15.22kNm, and filtering accuracy is 5 μ m, and removal of impurity is 99.98%.
Claims (4)
1. filter of automobile engine air paper, it is characterized in that, made by the raw material of following weight portion: hardwood pulp 60-70, cotton pulp 30-40, modified polyester fibre 10-20, nano-sized carbon 2-5, kaolin 1-3, milk of lime 1-2, modified zeolite molecular sieve 2-4, neatly stone flour 0.5-0.8, acrylic emulsion 3-4, polyvinyl acetate emulsion 2-5, sldium lauryl sulfate 0.5-1, silane coupler DL171 0.5-1, sldium lauryl sulfate 0.4-0.8, dialdehyde starch 4-6.
2. filter of automobile engine air paper according to claim 1, it is characterized in that, described modified polyester fibre adopts in polyster fibre and adds 3-5% active carbon master batch, 6-8% resurrection glass fibre, 1-2% activated alumina, prepares modified polyester fibre by spinning technique after mixing.
3. filter of automobile engine air paper according to claim 1, it is characterized in that, described modified zeolite molecular sieve has following method to make: granularity 20-40 purpose zeolite molecular sieve is dipped in the 0.1-0.2mol/L calcium nitrate solution, behind 70-80 ℃ of lower immersion 10-12h, filter, in 110-120 ℃ of oven dry, then in Muffle furnace, under 400-500 ℃, activate 4-5h, namely get modified zeolite molecular sieve.
4. a filter of automobile engine as claimed in claim 1 is characterized in that may further comprise the steps with the preparation method of air paper:
(1) first modified zeolite molecular sieve, kaolin, nano-sized carbon, milk of lime are mixed, add again silane coupler DL171, fully stir 10-20min after, leave standstill 5-8min, then 100-120 ℃ of lower oven dry, obtain powder body material;
(2) hardwood pulp, cotton pulp, modified polyester fibre are weighed by proportioning respectively, put into pulper, adding an amount of sulfuric acid water size degradation to solid content is the slurry of 5-6%, adds dialdehyde starch and continues size degradation 1-2h, makes mixed slurry;
(3) powder body material that step (1) is made adds in the mixed slurry, add neatly stone flour, sldium lauryl sulfate, sldium lauryl sulfate, be heated to 70-80 ℃, stir, after fluffer is discongested, defibrination again, add an amount of water size mixing to solid content be 2-3%, the slurry that mixes up aspirates dehydration to the l Water Paper after the moulding under the vacuum condition of 0.05-0.08Mpa after the forming web moulding;
(4) dilution 10-20 after acrylic emulsion and the polyvinyl acetate emulsion mixing is doubly made maceration extract, the paper after the dehydration is dipped in floods 2-3h in the maceration extract, remove excessive maceration extract with pressure roll again;
(5) paper after will flooding is dried under 180-200 ℃ to mass dryness fraction 95-98%, and press polish and arrangement namely get filter of automobile engine air paper of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210351287.3A CN102912677B (en) | 2012-09-20 | 2012-09-20 | A kind of filter of automobile engine air paper and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210351287.3A CN102912677B (en) | 2012-09-20 | 2012-09-20 | A kind of filter of automobile engine air paper and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102912677A true CN102912677A (en) | 2013-02-06 |
| CN102912677B CN102912677B (en) | 2015-12-02 |
Family
ID=47611229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210351287.3A Active CN102912677B (en) | 2012-09-20 | 2012-09-20 | A kind of filter of automobile engine air paper and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102912677B (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334341A (en) * | 2013-05-30 | 2013-10-02 | 蚌埠首创滤清器有限公司 | Mixed paper pulp filter paper and preparation method thereof |
| CN103382678A (en) * | 2013-06-26 | 2013-11-06 | 蚌埠首创滤清器有限公司 | Anticorrosive filter paper and preparation method thereof |
| CN103924481A (en) * | 2014-03-18 | 2014-07-16 | 蚌埠市风驰滤清器有限公司 | Durable high-temperature-resistance engine oil filter filtration paper and preparation method thereof |
| CN103981766A (en) * | 2014-03-31 | 2014-08-13 | 蚌埠凤凰滤清器有限责任公司 | Safe and environmentally-friendly large-porosity oil filter composite filter paper and making method thereof |
| CN103993522A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠凤凰滤清器有限责任公司 | Novel composite filter paper for fuel filter and preparation method thereof |
| CN103993520A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠凤凰滤清器有限责任公司 | Composite fuel oil filter paper with high filtration efficiency and preparation method thereof |
| CN103993514A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠凤凰滤清器有限责任公司 | Safe environment-friendly great-strength composite filter paper for fuel filter and preparation method thereof |
| CN103993523A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠凤凰滤清器有限责任公司 | Zeolite molecular sieve-added composite fuel oil filter paper and preparation method thereof |
| CN104005271A (en) * | 2014-04-25 | 2014-08-27 | 蚌埠德美过滤技术有限公司 | Good purifying efficiency air filter paper suitable for humid environment, and making method thereof |
| CN104005280A (en) * | 2014-04-25 | 2014-08-27 | 蚌埠凤凰滤清器有限责任公司 | Fuel oil composite filter paper capable of realizing oil-water separation, and making method thereof |
| CN105986519A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Feather fiber added environment-friendly filter paper for hydraulic filter |
| CN105986524A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Nano silica particle added filter paper for hydraulic oil filter element |
| CN105986523A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Inorganic-filler enhanced corrosion-resistant filter paper for hydraulic filter |
| CN105986528A (en) * | 2016-01-29 | 2016-10-05 | 蚌埠首创滤清器有限公司 | Hydraulic oil filter paper capable of separating oil from water efficiently |
| CN105986521A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Super-hydrophobic sterilization type hydraulic filter paper for filters |
| CN105986522A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Energy-saving and durable filter paper obtained by waste utilization and used for hydraulic filter |
| CN105986512A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Composite and efficient oil-water-separation filter paper for hydraulic filter |
| CN106567288A (en) * | 2016-11-14 | 2017-04-19 | 蚌埠市风驰滤清器有限公司 | Filter paper with high dust containing capacity for filter |
| CN107237212A (en) * | 2017-06-07 | 2017-10-10 | 常州西夏墅东方工具有限公司 | A kind of filter of automobile engine air paper and preparation method thereof |
| CN109610238A (en) * | 2018-11-19 | 2019-04-12 | 杭州特种纸业有限公司 | Fire-retardant solidification filter paper of one kind and preparation method thereof |
| CN110284237A (en) * | 2019-07-07 | 2019-09-27 | 徐州荣盛达纤维制品科技有限公司 | A kind of nothing is threaded line cold protective clothing fabric and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000308805A (en) * | 1999-04-27 | 2000-11-07 | Nippon Sheet Glass Co Ltd | Filter paper for air filter and its production |
| WO2004035173A1 (en) * | 2002-10-16 | 2004-04-29 | Hokuetsu Paper Mills, Ltd. | Air purification filter and process for producing the same |
| CN1962047A (en) * | 2006-10-17 | 2007-05-16 | 太原理工大学 | Method for preparing molecular sieve absorbent with high adsorption capacity |
| CN101518718A (en) * | 2008-02-28 | 2009-09-02 | 中国纺织科学研究院 | Functional filter felt for eliminating harmful constituents of fume, preparation method and application method thereof |
| CN102247012A (en) * | 2011-07-02 | 2011-11-23 | 云南瑞升烟草技术（集团）有限公司 | Application of acetate fiber paper added with adsorptive filling material in paper filter rod |
-
2012
- 2012-09-20 CN CN201210351287.3A patent/CN102912677B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000308805A (en) * | 1999-04-27 | 2000-11-07 | Nippon Sheet Glass Co Ltd | Filter paper for air filter and its production |
| WO2004035173A1 (en) * | 2002-10-16 | 2004-04-29 | Hokuetsu Paper Mills, Ltd. | Air purification filter and process for producing the same |
| CN1962047A (en) * | 2006-10-17 | 2007-05-16 | 太原理工大学 | Method for preparing molecular sieve absorbent with high adsorption capacity |
| CN101518718A (en) * | 2008-02-28 | 2009-09-02 | 中国纺织科学研究院 | Functional filter felt for eliminating harmful constituents of fume, preparation method and application method thereof |
| CN102247012A (en) * | 2011-07-02 | 2011-11-23 | 云南瑞升烟草技术（集团）有限公司 | Application of acetate fiber paper added with adsorptive filling material in paper filter rod |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334341A (en) * | 2013-05-30 | 2013-10-02 | 蚌埠首创滤清器有限公司 | Mixed paper pulp filter paper and preparation method thereof |
| CN103382678A (en) * | 2013-06-26 | 2013-11-06 | 蚌埠首创滤清器有限公司 | Anticorrosive filter paper and preparation method thereof |
| CN103924481A (en) * | 2014-03-18 | 2014-07-16 | 蚌埠市风驰滤清器有限公司 | Durable high-temperature-resistance engine oil filter filtration paper and preparation method thereof |
| CN103924481B (en) * | 2014-03-18 | 2016-04-06 | 蚌埠市风驰滤清器有限公司 | A kind of durable high temperature resistant oil filter filter paper and preparation method thereof |
| CN103981766A (en) * | 2014-03-31 | 2014-08-13 | 蚌埠凤凰滤清器有限责任公司 | Safe and environmentally-friendly large-porosity oil filter composite filter paper and making method thereof |
| CN103993520A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠凤凰滤清器有限责任公司 | Composite fuel oil filter paper with high filtration efficiency and preparation method thereof |
| CN103993514A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠凤凰滤清器有限责任公司 | Safe environment-friendly great-strength composite filter paper for fuel filter and preparation method thereof |
| CN103993523A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠凤凰滤清器有限责任公司 | Zeolite molecular sieve-added composite fuel oil filter paper and preparation method thereof |
| CN104005271A (en) * | 2014-04-25 | 2014-08-27 | 蚌埠德美过滤技术有限公司 | Good purifying efficiency air filter paper suitable for humid environment, and making method thereof |
| CN104005280A (en) * | 2014-04-25 | 2014-08-27 | 蚌埠凤凰滤清器有限责任公司 | Fuel oil composite filter paper capable of realizing oil-water separation, and making method thereof |
| CN103993522A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠凤凰滤清器有限责任公司 | Novel composite filter paper for fuel filter and preparation method thereof |
| CN105986528A (en) * | 2016-01-29 | 2016-10-05 | 蚌埠首创滤清器有限公司 | Hydraulic oil filter paper capable of separating oil from water efficiently |
| CN105986524A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Nano silica particle added filter paper for hydraulic oil filter element |
| CN105986523A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Inorganic-filler enhanced corrosion-resistant filter paper for hydraulic filter |
| CN105986519A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Feather fiber added environment-friendly filter paper for hydraulic filter |
| CN105986521A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Super-hydrophobic sterilization type hydraulic filter paper for filters |
| CN105986522A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Energy-saving and durable filter paper obtained by waste utilization and used for hydraulic filter |
| CN105986512A (en) * | 2016-01-29 | 2016-10-05 | 安徽凤凰滤清器股份有限公司 | Composite and efficient oil-water-separation filter paper for hydraulic filter |
| CN106567288A (en) * | 2016-11-14 | 2017-04-19 | 蚌埠市风驰滤清器有限公司 | Filter paper with high dust containing capacity for filter |
| CN107237212A (en) * | 2017-06-07 | 2017-10-10 | 常州西夏墅东方工具有限公司 | A kind of filter of automobile engine air paper and preparation method thereof |
| CN109610238A (en) * | 2018-11-19 | 2019-04-12 | 杭州特种纸业有限公司 | Fire-retardant solidification filter paper of one kind and preparation method thereof |
| CN110284237A (en) * | 2019-07-07 | 2019-09-27 | 徐州荣盛达纤维制品科技有限公司 | A kind of nothing is threaded line cold protective clothing fabric and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102912677B (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102912677A (en) | Air-filtration paper for automobile engine filter and preparation method of air-filtration paper | |
| CN102877368B (en) | High temperature resistant flame retardant filter paper used for diesel filter and preparation method thereof | |
| CN102899969B (en) | High-temperature and corrosion resistant filter paper for fuel filter and preparation method thereof | |
| CN102888784B (en) | Filter filtering paper and preparation method thereof | |
| CN102912680B (en) | A kind of oil filter high-temperature fibre filter paper and preparation method thereof | |
| CN102888785B (en) | Zirconium oxide-loaded silicone air filtration paper and preparation method thereof | |
| CN102877373B (en) | A kind of preparation method of the fuel filter filter paper containing modified pearl potter's clay | |
| CN102979004B (en) | Zirconia-loaded filter paper for filter and preparation method thereof | |
| CN102877375B (en) | A kind of preparation method of the filter paper for air filter containing modified kaolin | |
| CN112252085B (en) | High-temperature-resistant flame-retardant automobile air filter paper and preparation method and application thereof | |
| CN102877370B (en) | Hollow polyester staple fiber doped filter paper for diesel filter and preparation method for filter paper | |
| CN102899968B (en) | A kind of flame retardant air filter paper for automobile and preparation method thereof | |
| CN102877376B (en) | A kind of acetate fiber paper | |
| CN102995497B (en) | Filter paper for air filter and preparation method of filter paper | |
| CN102912679B (en) | Mineral cotton fiber filter paper for fuel filter and preparation method for mineral fiber filter paper | |
| CN102912678A (en) | High-strength high-temperature resistant oil filter paper and preparation method thereof | |
| CN102912681B (en) | Bamboo pulp filter paper for electric spray gasoline filter and preparation method of bamboo pulp filter paper | |
| CN103981766A (en) | Safe and environmentally-friendly large-porosity oil filter composite filter paper and making method thereof | |
| CN102877369B (en) | Bamboo load-bearing chitosan industrial filter paper for automobiles and preparation method of bamboo load-bearing chitosan industrial filter paper | |
| CN112709097A (en) | High-bulkiness automobile filter paper base paper and preparation method thereof | |
| CN103938491B (en) | A kind of Waterproofing/oilproofing oil filter filter paper adding nano titanium oxide and preparation method thereof | |
| CN102979005B (en) | High temperature-resistant flame-retardant filter paper and preparation method thereof | |
| CN102912683B (en) | A kind of high-temperature resistant fuel oil filter paper and preparation method thereof | |
| CN102899967A (en) | Efficient automobile filter paper and preparation method thereof | |
| CN102912685B (en) | Preparation method of filter paper for air filter containing nano-porcelain clay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 233000 Mount Huangshan Road, Bengbu high tech Zone, Anhui, No. 8028 Applicant after: ANHUI PHOENIX FILTER CO., LTD. Address before: 233000 Mount Huangshan Road, Bengbu high tech Zone, Anhui, No. 8028 Applicant before: Bengbu Fenghuang Filters Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: BENGBU FENGHUANG FILTERS CO., LTD. TO: ANHUI PHOENIX INTERNATIONAL CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |