CN106283907A - A kind of preparation method of watermifoil enhancement mode air filter paper - Google Patents

A kind of preparation method of watermifoil enhancement mode air filter paper Download PDF

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Publication number
CN106283907A
CN106283907A CN201610784054.0A CN201610784054A CN106283907A CN 106283907 A CN106283907 A CN 106283907A CN 201610784054 A CN201610784054 A CN 201610784054A CN 106283907 A CN106283907 A CN 106283907A
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CN
China
Prior art keywords
filter paper
watermifoil
air filter
glass fiber
enhancement mode
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.)
Pending
Application number
CN201610784054.0A
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Chinese (zh)
Inventor
张申元
林凯
赵海飞
潘建峰
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SUZHOU HUATAI AIR FILTER CO Ltd
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SUZHOU HUATAI AIR FILTER CO Ltd
Priority date (The priority date 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 date listed.)
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Priority to CN201610784054.0A priority Critical patent/CN106283907A/en
Publication of CN106283907A publication Critical patent/CN106283907A/en
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/08—Filter paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F13/00—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/38—Inorganic fibres or flakes siliceous
    • D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/52—Epoxy resins
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/56—Polyamines; Polyimines; Polyester-imides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/32—Multi-ply with materials applied between the sheets
    • D21H27/34—Continuous materials, e.g. filaments, sheets, nets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Filtering Materials (AREA)

Abstract

The invention discloses the preparation method of a kind of watermifoil enhancement mode air filter paper, short glass fiber and microglass fiber that use fibre diameter is different make a kind of novel air filter paper, are simultaneously introduced watermifoil, improve filter effect further.Present invention process advantages of simple, yield rate is high, production cost is low, use the different short glass fiber of fibre diameter and microglass fiber to make the air filter paper of double-layer composite, improve filter efficiency, reduce windage simultaneously, improve dust containing capacity, increase watermifoil additive simultaneously, on the one hand can improve the filter effect of the harmful gass such as PARA FORMALDEHYDE PRILLS(91,95) further, and further increase the dust containing capacity of the present invention.

Description

A kind of preparation method of watermifoil enhancement mode air filter paper
Technical field
The present invention relates to field of air filtration, particularly relate to the preparation method of a kind of watermifoil enhancement mode air filter paper.
Background technology
Air filter paper, as the critical piece of high efficiency particulate air filter, decides the filter efficiency of high efficiency particulate air filter.Air mistake The fibre diameter of filter paper is the least, removes the particle diameter of microgranule in air the least, and filter efficiency is the highest, but relative windage The biggest, the rate of filtration is the slowest, and dust containing capacity reduces.Traditional single filter paper cannot meet people's air to high-quality Require that of environment, therefore demand one filter efficiency is high, the air filter of the composite highly effective that dust containing capacity is big.
Watermifoil, as a kind of common water plant, does not only utilize, simultaneously because excessive multiplication, once The balance of harm aquatic environment.
Summary of the invention
Goal of the invention: the present invention solves the problems referred to above, it is provided that the preparation of a kind of watermifoil enhancement mode air filter paper Method.
Technical scheme: the preparation method of a kind of watermifoil enhancement mode air filter paper, comprises the following steps:
Step 1, takes watermifoil and grinds making beating, is subsequently adding protease and saccharifying enzyme, keeps temperature to be 28-35 DEG C, stands 60-72 hour, being then centrifuged separating, rotating speed is 3500r/min, takes off layer precipitate and dries, is ground to more than 200 mesh, Add water and make the solution that concentration is 2%, add dispersant, stir, make watermifoil additive；
Step 2, is averaged diameter and pulls an oar in the saline solution of 6-8 at the short glass fiber addition pH value of 6-10 μm, add Entering dispersant, then discongest on fluffer, discongesting revolution is that 10000-15000 turns；
Step 3, adds polyamide polyamine epichlorhydrin resin solution, so in the short glass fiber solution after discongesting After molding on wet moulding machine, make short glass fiber handsheet, put into drying and moulding in drying machine, baking temperature is 70-90 DEG C, make short glass fiber filter paper；
Step 4, at a coated with adhesive of short glass fiber filter paper, then uniformly coats watermifoil on binding agent Additive, is dried 30-60min at 30-35 DEG C；
Step 5, goes average diameter glass cotton below 2 μm to add pH value and pulls an oar in the acid solution of 5-6, add dispersion Agent, then discongests on fluffer, and discongesting revolution is that 15000-25000 turns；
Step 6, the glass cotton after discongesting puts into molding on wet moulding machine, and the staple glass after step 4 being processed Fiber filter paper is placed on forming net, makes glass cotton become in the one side of short glass fiber filter paper coating watermifoil additive Type, then 80-100 DEG C of drying, make watermifoil enhancement mode air filter paper.
As a preferred embodiment of the present invention, polyamide polyamine epichlorhydrin resin solution described in step 3 dense Degree is 0.5-1%.
As a preferred embodiment of the present invention, the short glass fiber layer of described watermifoil enhancement mode air filter paper Thickness is 1:2-1: 1 with the ratio of the thickness of glass cotton layer.
As a preferred embodiment of the present invention, described watermifoil enhancement mode air filter paper thickness is 0.5-0.6mm.
Beneficial effect: the present invention compared with prior art, has an advantage in that, present invention process advantages of simple, yield rate is high, Production cost is low, uses the different short glass fiber of fibre diameter and microglass fiber to make the air filtration of double-layer composite Paper, improves filter efficiency, reduces windage simultaneously, improves dust containing capacity, increases watermifoil additive simultaneously, the most permissible Improve the filter effect of the harmful gass such as PARA FORMALDEHYDE PRILLS(91,95) further, and further increase the dust containing capacity of the present invention.
Detailed description of the invention
Below in conjunction with detailed description of the invention, it is further elucidated with the present invention.
Embodiment
The preparation method of a kind of watermifoil enhancement mode air filter paper, comprises the following steps:
Step 1, takes watermifoil and grinds making beating, is subsequently adding protease and saccharifying enzyme, keeps temperature to be 28-35 DEG C, stands 60-72 hour, being then centrifuged separating, rotating speed is 3500r/min, takes off layer precipitate and dries, is ground to more than 200 mesh, Add water and make the solution that concentration is 2%, add dispersant, stir, make watermifoil additive；
Step 2, is averaged diameter and pulls an oar in the saline solution of 6-8 at the short glass fiber addition pH value of 6-10 μm, add Entering dispersant, then discongest on fluffer, discongesting revolution is that 10000-15000 turns；
Step 3, adds polyamide polyamine epichlorhydrin resin solution, so in the short glass fiber solution after discongesting After molding on wet moulding machine, make short glass fiber handsheet, put into drying and moulding in drying machine, baking temperature is 70-90 DEG C, make short glass fiber filter paper；It is short that addition polyamide polyamine epichlorhydrin resin is prevented from two-layer compound tense Cut glass fiber filter paper surface fracture, during polyamide polyamine epichlorhydrin resin solution mixes with fibrous raw material, Owing to polyamide polyamine epichlorhydrin resin is cationic, and fibrous raw material is the most in the solution in anionic property, quiet Under the effect of electro-adsorption, PPE resin can be adsorbed to the surface of fiber during mixing with comparalive ease.Thereafter, exist In dry run after fiberizing, it is adsorbed between the polyamide polyamine epichlorhydrin molecular resin of fiber surface with poly- Amide polymeric amine epichlorohydrin molecular resin and the chemical group of fiber surface, as hydroxyl, carboxyl etc. crosslink reaction, formed The covalent bond of the water resistants such as methylene ether link, makes the combination between fiber have a water resisting property.When filter material runs into water the most again, Filter material can have certain intensity, without there is frotation and breakage.Described polyamide polyamine epichlorhydrin resin is molten The concentration of liquid is preferably 0.5-1%.
Step 4, at a coated with adhesive of short glass fiber filter paper, then uniformly coats watermifoil on binding agent Additive, is dried 30-60min at 30-35 DEG C；
Step 5, goes average diameter glass cotton below 2 μm to add pH value and pulls an oar in the acid solution of 5-6, add dispersion Agent, then discongests on fluffer, and discongesting revolution is that 15000-25000 turns；
Step 6, the glass cotton after discongesting puts into molding on wet moulding machine, and the staple glass after step 4 being processed Fiber filter paper is placed on forming net, makes glass cotton become in the one side of short glass fiber filter paper coating watermifoil additive Type, then 80-100 DEG C of drying, make watermifoil enhancement mode air filter paper.
The thickness of the short glass fiber layer of described watermifoil enhancement mode air filter paper and the ratio of the thickness of glass cotton layer For 1:2-1:1, more preferable dust containing capacity and filter efficiency so can be obtained.
Described watermifoil enhancement mode air filter paper thickness is preferably 0.5-0.6mm.
Present invention process advantages of simple, yield rate is high, and production cost is low, uses the short glass fiber that fibre diameter is different Air filter paper with microglass fiber makes double-layer composite, improves filter efficiency, reduces windage simultaneously, improves appearance Dust quantity, increases watermifoil additive simultaneously, on the one hand can improve the filter effect of the harmful gass such as PARA FORMALDEHYDE PRILLS(91,95) further, and Further increase the dust containing capacity of the present invention.,
Multiple amendment to embodiment will be apparent from for those skilled in the art, is determined herein The General Principle of justice can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, originally Invention is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty The widest consistent scope.

Claims (4)

1. the preparation method of a watermifoil enhancement mode air filter paper, it is characterised in that comprise the following steps:
Step 1, takes watermifoil and grinds making beating, is subsequently adding protease and saccharifying enzyme, keeps temperature to be 28-35 DEG C, stands 60-72 Hour, then it being centrifuged separating, rotating speed is 3500r/min, takes off layer precipitate and dries, is ground to more than 200 mesh, the system of adding water Becoming concentration is the solution of 2%, adds dispersant, stirs, make watermifoil additive；
Step 2, is averaged diameter and pulls an oar in the saline solution of 6-8 at the short glass fiber addition pH value of 6-10 μm, add and divide Powder, then discongests on fluffer, and discongesting revolution is that 10000-15000 turns；
Step 3, adds polyamide polyamine epichlorhydrin resin solution, then exists in the short glass fiber solution after discongesting Molding on wet moulding machine, makes short glass fiber handsheet, puts into drying and moulding in drying machine, and baking temperature is 70-90 DEG C, make short glass fiber filter paper；
Step 4, at a coated with adhesive of short glass fiber filter paper, then on binding agent, uniformly coating watermifoil is added Agent, is dried 30-60min at 30-35 DEG C；
Step 5, goes average diameter glass cotton below 2 μm to add pH value and pulls an oar in the acid solution of 5-6, add dispersant, Then discongesting on fluffer, discongesting revolution is that 15000-25000 turns；
Step 6, the glass cotton after discongesting puts into molding on wet moulding machine, and the short glass fiber after step 4 being processed Filter paper is placed on forming net, makes glass cotton molding in the one side of short glass fiber filter paper coating watermifoil additive, so Rear 80-100 DEG C of drying, makes watermifoil enhancement mode air filter paper.
The preparation method of watermifoil enhancement mode air filter paper the most according to claim 1, it is characterised in that in step 3 The concentration of described polyamide polyamine epichlorhydrin resin solution is 0.5-1%.
The preparation method of watermifoil enhancement mode air filter paper the most according to claim 1, it is characterised in that described fox-brush The thickness of the short glass fiber layer of algae enhancement mode air filter paper is 1:2-1: 1 with the ratio of the thickness of glass cotton layer.
The preparation method of watermifoil enhancement mode air filter paper the most according to claim 1, it is characterised in that described fox-brush Algae enhancement mode air filter paper thickness is 0.5-0.6mm.
CN201610784054.0A 2016-08-31 2016-08-31 A kind of preparation method of watermifoil enhancement mode air filter paper Pending CN106283907A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000070646A (en) * 1998-08-31 2000-03-07 Mitsubishi Paper Mills Ltd Air purifying filter member
CN102059025A (en) * 2010-12-01 2011-05-18 重庆再升科技发展有限公司 Double-layer filter material, preparation method thereof and multilayer product
CN104364441A (en) * 2012-05-25 2015-02-18 金伯利-克拉克环球有限公司 High strength macroalgae pulps
CN104532683A (en) * 2014-12-26 2015-04-22 重庆再升科技股份有限公司 Antibacterial mildewproof glass fiber composite air filter paper and preparation method of antibacterial mildewproof glass fiber composite air filter paper
CN105233571A (en) * 2015-10-22 2016-01-13 南京航空航天大学 Antibacterial glass-fiber composite filter paper and preparation method thereof
CN105495040A (en) * 2015-12-15 2016-04-20 苏州市阳澄农业科技有限公司 Aquatic plant fish granulated feed and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000070646A (en) * 1998-08-31 2000-03-07 Mitsubishi Paper Mills Ltd Air purifying filter member
CN102059025A (en) * 2010-12-01 2011-05-18 重庆再升科技发展有限公司 Double-layer filter material, preparation method thereof and multilayer product
CN104364441A (en) * 2012-05-25 2015-02-18 金伯利-克拉克环球有限公司 High strength macroalgae pulps
CN104532683A (en) * 2014-12-26 2015-04-22 重庆再升科技股份有限公司 Antibacterial mildewproof glass fiber composite air filter paper and preparation method of antibacterial mildewproof glass fiber composite air filter paper
CN105233571A (en) * 2015-10-22 2016-01-13 南京航空航天大学 Antibacterial glass-fiber composite filter paper and preparation method thereof
CN105495040A (en) * 2015-12-15 2016-04-20 苏州市阳澄农业科技有限公司 Aquatic plant fish granulated feed and preparation method thereof

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Application publication date: 20170104