CN106087583A - High-strength chemical fiber filter paper and preparation method thereof - Google Patents
High-strength chemical fiber filter paper and preparation method thereof Download PDFInfo
- Publication number
- CN106087583A CN106087583A CN201610518604.4A CN201610518604A CN106087583A CN 106087583 A CN106087583 A CN 106087583A CN 201610518604 A CN201610518604 A CN 201610518604A CN 106087583 A CN106087583 A CN 106087583A
- Authority
- CN
- China
- Prior art keywords
- filter paper
- slurry
- surface layer
- parts
- layer
- 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
Links
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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/30—Disc mills
- D21D1/303—Double disc mills
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/14—Making cellulose wadding, filter or blotting 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
-
- 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
- D21H13/10—Organic non-cellulose fibres
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/18—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylonitriles
-
- 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
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/24—Polyesters
-
- 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
- D21H21/06—Paper forming aids
- D21H21/08—Dispersing agents for 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
- 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
- D21H21/16—Sizing or water-repelling agents
-
- 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
- D21H21/18—Reinforcing agents
- D21H21/20—Wet strength agents
Abstract
The present invention provides a kind of high-strength chemical fiber filter paper, is three-decker from the face that flows to of filter paper to effluent face, and the intermediate layer of described three-decker is counted by weight, including the viscose rayons of 20～40 parts, the polypropylene fiber of 30～50 parts and the acrylic fiber of 10～30 parts；The described surface layer that flows to is counted by weight, and including 60 100 parts and 10 40 parts acetate fibers of viscose rayon, described outflow surface layer is counted by weight, including the polypropylene fibers of 40 70 parts and the polyster fibre of 30 60 parts.This chemical fibre filter paper has the filtration chemical fibre filter paper that absorbent properties are good, length in service life, wet strength are good, compressive strength is high.
Description
Technical field
The present invention relates to filter paper technical field, be specifically related to a kind of high-strength chemical fiber filter paper and preparation method thereof.
Background technology
Filter paper has abundant capillary tube due to it, can inhale the liquid of quality 20%-100% of load own.But it is common
Chemical fibre filter paper often uses Single Fiber to carry out manufacturing paper with pulp and obtain monolayer filter paper, for this Single Fiber material, in order to improve filtration
Precision will reduced bore, thus filtration resistance can be increased, shorten physical life；In order to reduce filtration resistance, extend and use the longevity
Life is it is necessary to hole diameter enlargement, but can reduce filtering accuracy, thus be difficult to the regulation by microscopic void balance filtering accuracy and
The performance parameters such as filtration resistance；Additionally such chemical fibre filter paper there is also the shortcomings such as wet strength is poor, compressive strength is relatively low.
Summary of the invention
For the deficiencies in the prior art, the present invention provides and a kind of filter that absorbent properties are good, length in service life, wet strength are good,
The chemical fibre filter paper that compressive strength is high, present invention also offers the preparation method of this chemical fibre filter paper.
For realizing goal of the invention, the technical scheme that the present invention takes is:
High-strength chemical fiber filter paper, is three-decker from the face that flows to of filter paper to effluent face, the centre of described three-decker
Layer is counted, by weight including the viscose rayons of 20～40 parts, the polypropylene fiber of 30～50 parts and the acrylic fiber of 10～30 parts；
The described surface layer that flows to is counted by weight, including viscose rayon 60-100 part and 10-40 part acetate fiber, described effluent face
Layer is counted, by weight including polypropylene fiber and the polyster fibre of 30-60 part of 40-70 part.
As preferably, described flows to also include in surface layer the waterproofing agent of 0.2-2 part, 0.5-2 part wet strength agent.
As preferably, described intermediate layer also includes also including 1-3 part dispersant, 1-2 part wet strength agent.
As preferably, described flows out the waterproofing agent also including 0.2-2 part in surface layer.
As preferably, described dispersant is selected from carboxymethyl cellulose, sodium pyrophosphate or the one of sodium hexameta phosphate or many
Kind.
As preferably, described wet strength agent is polyamide Hydrin resin.
As preferably, described waterproofing agent is selected from one or more of melmac, water resistant solution or Lauxite.
As preferably, described total air penetrability is 250～300mm/s, the most quantification of 180 ± 10g/m2, flow to surface layer fixed
Amount is 68 ± 2g/m2, intermediate layer is 68 ± 2g/m2, outflow surface layer is 35 ± 1g/m2。
The invention still further relates to the processing technology of above-mentioned high-strength chemical fiber filter paper, the technological means taked is:
The preparation method of a kind of high-strength chemical fiber filter paper, comprises the steps:
1) preparation flows to surface layer, viscose rayon and acetate fiber defiberizing machine is discongested by dosage, then warp
Cross double disc refiner to polish online and obtain pulp, then the wet strength agent of formula ratio waterproofing agent and dilute with water is slowly added to
In pulp, obtaining pulping, slurry concentration is 1.58～1.98%, and one layer that is placed in by slurry in many laminar flows oar case is passed through into
Shape net drainage shapes, and obtains flowing to surface layer；
2) prepare intermediate layer slurry, enter by the viscose rayon of dosage, polypropylene fiber and acrylic fiber defiberizing machine
Row is discongested, then polishes online through double disc refiner and obtain pulp, then by formula ratio dispersant and dilute with water wet by force
Agent is slowly added in pulp, obtains pulping, and slurry concentration is 1.98～2.36%；
3) surface layer slurry is flowed out in preparation, discongests by dosage polypropylene fiber and polyster fibre defiberizing machine, then
Polish online through double disc refiner and obtain pulp, then the wet strength agent of formula ratio dispersant and dilute with water is slowly added into
In pulp, obtaining pulping, slurry concentration is 2.36～2.86%；
3) by step 2) many laminar flows oar case of being also placed in step 1 of the intermediate layer slurry that obtains, by its slurry stream slowly
Entering to flowing to surface layer and carry out liquid-solid composite, then drainage and formation obtains two-layer composite bed；
4) by step 3) many laminar flows oar case of being also placed in step 1 of the effluent face slurry that obtains, by its slurry stream slowly
The two-layer composite bed entered to drying carries out liquid-solid composite, and then drainage and formation obtains three layers of composite bed, is dried.
The layer being obtained fiber filter paper by the method does not has obvious interface, layer to be to twine completely with the fiber of interlayer with interlayer
Around weave in, being even difficult to define the position of each layer, whole fiber filter paper is a structure completed.The intensity of paper by
Many factors determines, most important factor is fibrous binding force, and in fibrous binding force, Hydrogen bonding forces plays very important
Effect, the filter paper obtained by the method, layer and interlayer more likely by even level hydrone and fiber formed fiber-water-
The loosely connected hydrogen bonded of fiber, this Hydrogen bonding forces layer combines with fiber with the fiber of interlayer, make layer with
Interlayer has intensity, so that the intensity enhancing of whole fiber filter paper.
Detailed description of the invention
The invention is further illustrated by the following examples, but the present invention is not limited solely to following example.
Embodiment 1
A kind of high-strength chemical fiber filter paper, is three-decker from the face that flows to of filter paper to effluent face, described three-decker
Intermediate layer is counted by weight, including 20 parts of viscose rayons, the polypropylene fiber of 30 parts, and the acrylic fiber of 10 parts, 1 part of dispersant, 1
Part wet strength agent；The described surface layer that flows to is counted by weight, including viscose rayon 60 parts, and 10 parts of acetate fibers, 0.2 part waterproof
Agent, 0.5 part of wet strength agent；Described outflow surface layer is counted by weight, including the polypropylene fiber of 40 parts, and 30 parts of polyster fibres, 0.2
The waterproofing agent of part；Described dispersant is carboxymethyl cellulose；Described wet strength agent is polyamide Hydrin resin；Institute
The waterproofing agent stated is selected from melmac.
The preparation method of above-mentioned high-strength chemical fiber filter paper, comprises the steps:
1) preparation flows to surface layer, viscose rayon and acetate fiber defiberizing machine is discongested by dosage, then warp
Cross double disc refiner to polish online and obtain pulp, then the wet strength agent of formula ratio waterproofing agent and dilute with water is slowly added to
In pulp, obtaining pulping, slurry concentration is 1.58%, is filtered by forming net for one layer that is placed in by slurry in many laminar flows oar case
Water shapes, and obtains flowing to surface layer；
2) prepare intermediate layer slurry, enter by the viscose rayon of dosage, polypropylene fiber and acrylic fiber defiberizing machine
Row is discongested, then polishes online through double disc refiner and obtain pulp, then by formula ratio dispersant and dilute with water wet by force
Agent is slowly added in pulp, obtains pulping, and slurry concentration is 1.98%；
3) surface layer slurry is flowed out in preparation, discongests by dosage polypropylene fiber and polyster fibre defiberizing machine, then
Polish online through double disc refiner and obtain pulp, then the wet strength agent of formula ratio dispersant and dilute with water is slowly added into
In pulp, obtaining pulping, slurry concentration is 2.36%；
3) by step 2) many laminar flows oar case of being also placed in step 1 of the intermediate layer slurry that obtains, by its slurry stream slowly
Entering to flowing to surface layer and carry out liquid-solid composite, then drainage and formation obtains two-layer composite bed；
4) by step 3) many laminar flows oar case of being also placed in step 1 of the effluent face slurry that obtains, by its slurry stream slowly
The two-layer composite bed entered to drying carries out liquid-solid composite, and then drainage and formation obtains three layers of composite bed, is dried.
The total air penetrability obtaining filter paper is 260mm/s, total quantification of 185g/m2, flow to the quantification of 68g/m of surface layer2, middle
Layer is 66g/m2, outflow surface layer is 34g/m2。
Embodiment 2
A kind of high-strength chemical fiber filter paper, is three-decker from the face that flows to of filter paper to effluent face, described three-decker
Intermediate layer is counted by weight, including 40 parts of viscose rayons, the polypropylene fiber of 50 parts, and the acrylic fiber of 30 parts, 3 parts of dispersants, 2
Part wet strength agent；The described surface layer that flows to is counted by weight, including viscose rayon 100 parts, and 40 parts of acetate fibers, 2 parts waterproof
Agent, 2 parts of wet strength agents；Described outflow surface layer is counted by weight, including the polypropylene fiber of 60 parts, and 70 parts of polyster fibres, 2 parts
Waterproofing agent；Described dispersant is sodium pyrophosphate；Described wet strength agent is polyamide Hydrin resin；Described is waterproof
Agent is water resistant solution.
The preparation method of above-mentioned high-strength chemical fiber filter paper, comprises the steps:
1) preparation flows to surface layer, viscose rayon and acetate fiber defiberizing machine is discongested by dosage, then warp
Cross double disc refiner to polish online and obtain pulp, then the wet strength agent of formula ratio waterproofing agent and dilute with water is slowly added to
In pulp, obtaining pulping, slurry concentration is 1.98%, is filtered by forming net for one layer that is placed in by slurry in many laminar flows oar case
Water shapes, and obtains flowing to surface layer；
2) prepare intermediate layer slurry, enter by the viscose rayon of dosage, polypropylene fiber and acrylic fiber defiberizing machine
Row is discongested, then polishes online through double disc refiner and obtain pulp, then by formula ratio dispersant and dilute with water wet by force
Agent is slowly added in pulp, obtains pulping, and slurry concentration is 2.36%；
3) surface layer slurry is flowed out in preparation, discongests by dosage polypropylene fiber and polyster fibre defiberizing machine, then
Polish online through double disc refiner and obtain pulp, then the wet strength agent of formula ratio dispersant and dilute with water is slowly added into
In pulp, obtaining pulping, slurry concentration is 2.86%；
3) by step 2) many laminar flows oar case of being also placed in step 1 of the intermediate layer slurry that obtains, by its slurry stream slowly
Entering to flowing to surface layer and carry out liquid-solid composite, then drainage and formation obtains two-layer composite bed；
4) by step 3) many laminar flows oar case of being also placed in step 1 of the effluent face slurry that obtains, by its slurry stream slowly
The two-layer composite bed entered to drying carries out liquid-solid composite, and then drainage and formation obtains three layers of composite bed, is dried.
The total air penetrability obtaining filter paper is 260mm/s, total quantification of 190g/m2, flow to the quantification of 70g/m of surface layer2, middle
Layer is 70g/m2, outflow surface layer is 36g/m2。
Embodiment 3
A kind of high-strength chemical fiber filter paper, is three-decker from the face that flows to of filter paper to effluent face, described three-decker
Intermediate layer is counted by weight, including 30 parts of viscose rayons, the polypropylene fiber of 30 parts, and the acrylic fiber of 20 parts, 2 parts of dispersants, 1
Part wet strength agent；The described surface layer that flows to is counted by weight, including viscose rayon 80 parts, and 20 parts of acetate fibers, 1 part waterproof
Agent, 1 part of wet strength agent；Described outflow surface layer is counted by weight, including the polypropylene fiber of 50 parts, and 50 parts of polyster fibres, 1 part
Waterproofing agent；Described dispersant is sodium hexameta phosphate；Described wet strength agent is polyamide Hydrin resin；Described is anti-
Water preparation is Lauxite.
The preparation method of above-mentioned high-strength chemical fiber filter paper, comprises the steps:
1) preparation flows to surface layer, viscose rayon and acetate fiber defiberizing machine is discongested by dosage, then warp
Cross double disc refiner to polish online and obtain pulp, then the wet strength agent of formula ratio waterproofing agent and dilute with water is slowly added to
In pulp, obtaining pulping, slurry concentration is 1.78%, is filtered by forming net for one layer that is placed in by slurry in many laminar flows oar case
Water shapes, and obtains flowing to surface layer；
2) prepare intermediate layer slurry, enter by the viscose rayon of dosage, polypropylene fiber and acrylic fiber defiberizing machine
Row is discongested, then polishes online through double disc refiner and obtain pulp, then by formula ratio dispersant and dilute with water wet by force
Agent is slowly added in pulp, obtains pulping, slurry concentration 2.06%；
3) surface layer slurry is flowed out in preparation, discongests by dosage polypropylene fiber and polyster fibre defiberizing machine, then
Polish online through double disc refiner and obtain pulp, then the wet strength agent of formula ratio dispersant and dilute with water is slowly added into
In pulp, obtaining pulping, slurry concentration is 2.56%；
3) by step 2) many laminar flows oar case of being also placed in step 1 of the intermediate layer slurry that obtains, by its slurry stream slowly
Entering to flowing to surface layer and carry out liquid-solid composite, then drainage and formation obtains two-layer composite bed；
4) by step 3) many laminar flows oar case of being also placed in step 1 of the effluent face slurry that obtains, by its slurry stream slowly
The two-layer composite bed entered to drying carries out liquid-solid composite, and then drainage and formation obtains three layers of composite bed, is dried；
The total air penetrability obtaining filter paper is 300mm/s, total quantification of 180g/m2, flow to the quantification of 66g/m of surface layer2, middle
Layer is 66g/m2, outflow surface layer is 34g/m2。
The high-strength chemical fiber filter paper technical specification that above-described embodiment prepares is as shown in the table:
Claims (9)
1. high-strength chemical fiber filter paper, it is characterised in that be three-decker from the face that flows to of filter paper to effluent face, described three-layered node
The intermediate layer of structure is counted by weight, including the viscose rayons of 20～40 parts, the polypropylene fiber of 30～50 parts and 10～30 parts
Acrylic fiber；The described surface layer that flows to is counted by weight, including viscose rayon 60-100 part and 10-40 part acetate fiber, institute
The outflow surface layer stated is counted by weight, including polypropylene fiber and the polyster fibre of 30-60 part of 40-70 part.
High-strength chemical fiber filter paper the most according to claim 1, it is characterised in that described flows to also include in surface layer 0.2-2
The waterproofing agent of part, 0.5-2 part wet strength agent.
High-strength chemical fiber filter paper the most according to claim 1, it is characterised in that described intermediate layer also includes also including 1-3
Part dispersant, 1-2 part wet strength agent.
High-strength chemical fiber filter paper the most according to claim 1, it is characterised in that also include 0.2-2 in described outflow surface layer
The waterproofing agent of part.
High-strength chemical fiber filter paper the most according to claim 1, it is characterised in that described dispersant is selected from carboxymethyl cellulose
One or more of element, sodium pyrophosphate or sodium hexameta phosphate.
High-strength chemical fiber filter paper the most according to claim 1, it is characterised in that described wet strength agent is polyamide polycyclic oxygen
Chloropropane resin.
High-strength chemical fiber filter paper the most according to claim 1, it is characterised in that described waterproofing agent is selected from tripolycyanamide tree
One or more of fat, water resistant solution or Lauxite.
High-strength chemical fiber filter paper the most according to claim 1, it is characterised in that described total air penetrability is 250～300mm/
S, the most quantification of 180 ± 10g/m2, flow to the quantification of 68 ± 2g/m of surface layer2, intermediate layer is 68 ± 2g/m2, flow out surface layer be 35 ±
1g/m2。
9. the preparation method of the high-strength chemical fiber filter paper as described in claim 1 to 8 is arbitrary, it is characterised in that include as follows
Step:
1) preparation flows to surface layer, viscose rayon and acetate fiber defiberizing machine is discongested by dosage, then through double
Mill pulp grinder is polished online and is obtained pulp, then the wet strength agent of formula ratio waterproofing agent and dilute with water is slowly added to paper pulp
In slurry, obtaining pulping, slurry concentration is 1.58～1.98%, and one layer that is placed in by slurry in many laminar flows oar case is passed through forming net
Drainage shapes, and obtains flowing to surface layer；
2) prepare intermediate layer slurry, dredge by the viscose rayon of dosage, polypropylene fiber and acrylic fiber defiberizing machine
Solve, then polish online through double disc refiner and obtain pulp, then by slow for the wet strength agent of formula ratio dispersant and dilute with water
Slowly joining in pulp, obtain pulping, slurry concentration is 1.98～2.36%；
3) surface layer slurry is flowed out in preparation, discongests by dosage polypropylene fiber and polyster fibre defiberizing machine, then passes through
Double disc refiner is polished online and is obtained pulp, then the wet strength agent of formula ratio dispersant and dilute with water is slowly added to paper
In slurry slurry, obtaining pulping, slurry concentration is 2.36～2.86%；
3) by step 2) many laminar flows oar case of being also placed in step 1 of the intermediate layer slurry that obtains, by its slurry being flowed into slowly
Flowing to surface layer and carry out liquid-solid composite, then drainage and formation obtains two-layer composite bed；
4) by step 3) many laminar flows oar case of being also placed in step 1 of the effluent face slurry that obtains, by its slurry being flowed into slowly
The two-layer composite bed of drying carries out liquid-solid composite, and then drainage and formation obtains three layers of composite bed, is dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518604.4A CN106087583A (en) | 2016-06-29 | 2016-06-29 | High-strength chemical fiber filter paper and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518604.4A CN106087583A (en) | 2016-06-29 | 2016-06-29 | High-strength chemical fiber filter paper and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106087583A true CN106087583A (en) | 2016-11-09 |
Family
ID=57212339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610518604.4A Pending CN106087583A (en) | 2016-06-29 | 2016-06-29 | High-strength chemical fiber filter paper and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106087583A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071033A (en) * | 2016-11-15 | 2018-05-25 | 杭州永森特种纸有限公司 | A kind of dregs of a decoction handbag paper and preparation method thereof |
| CN113445364A (en) * | 2020-03-26 | 2021-09-28 | 杭州特种纸业有限公司 | Flame-retardant air filter paper and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4661255A (en) * | 1982-10-22 | 1987-04-28 | Gessner & Co. Gmbh | Multilayer filter material, process for its manufacture and the use thereof |
| CN102041751A (en) * | 2010-11-25 | 2011-05-04 | 浙江省普瑞科技有限公司 | High-temperature edible oil filter paper and manufacturing method thereof |
| CN102154953A (en) * | 2011-05-10 | 2011-08-17 | 张赫廷 | Automobile fuel filter paper suitable for national IV standard and preparation method thereof |
| CN102154952A (en) * | 2011-05-10 | 2011-08-17 | 张赫廷 | Automobile air filter paper suitable for wet environment and preparation method thereof |
| CN104878642A (en) * | 2015-05-04 | 2015-09-02 | 杭州特种纸业有限公司 | Quantitative filter paper and preparing method and application thereof |
| CN205205583U (en) * | 2015-12-16 | 2016-05-04 | 辛集市华瑞滤纸有限公司 | Compound filter paper |
-
2016
- 2016-06-29 CN CN201610518604.4A patent/CN106087583A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4661255A (en) * | 1982-10-22 | 1987-04-28 | Gessner & Co. Gmbh | Multilayer filter material, process for its manufacture and the use thereof |
| CN102041751A (en) * | 2010-11-25 | 2011-05-04 | 浙江省普瑞科技有限公司 | High-temperature edible oil filter paper and manufacturing method thereof |
| CN102154953A (en) * | 2011-05-10 | 2011-08-17 | 张赫廷 | Automobile fuel filter paper suitable for national IV standard and preparation method thereof |
| CN102154952A (en) * | 2011-05-10 | 2011-08-17 | 张赫廷 | Automobile air filter paper suitable for wet environment and preparation method thereof |
| CN104878642A (en) * | 2015-05-04 | 2015-09-02 | 杭州特种纸业有限公司 | Quantitative filter paper and preparing method and application thereof |
| CN205205583U (en) * | 2015-12-16 | 2016-05-04 | 辛集市华瑞滤纸有限公司 | Compound filter paper |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071033A (en) * | 2016-11-15 | 2018-05-25 | 杭州永森特种纸有限公司 | A kind of dregs of a decoction handbag paper and preparation method thereof |
| CN113445364A (en) * | 2020-03-26 | 2021-09-28 | 杭州特种纸业有限公司 | Flame-retardant air filter paper and preparation method thereof |
| CN113445364B (en) * | 2020-03-26 | 2023-11-14 | 杭州特种纸业有限公司 | Flame-retardant air filter paper and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105970738A (en) | Medium-speed qualitative filter paper and preparation method thereof | |
| CN104411881B (en) | Regenerated fiber and regenerated fiber products formed | |
| CN104582812B (en) | Web including synthetic fibers | |
| CN104619393B (en) | Fibrillating fibre for liquid filtration media | |
| CN103619437B (en) | The filter medium of suitable hydraulic pressure application | |
| CN105970737A (en) | Rapid qualitative filter paper and preparation method thereof | |
| WO2010069695A1 (en) | Device and method for producing a material web | |
| CN105951529A (en) | Chromatographic filter paper and preparation method thereof | |
| CN107558291A (en) | Semi-transparent film support non-woven fabrics | |
| CN104674607A (en) | High-precision filter paper for hydraulic oil | |
| CN105102097B (en) | The filter medium of multilayer | |
| CN106087583A (en) | High-strength chemical fiber filter paper and preparation method thereof | |
| CN101321910A (en) | Method for manufacturing paper | |
| CN105498550A (en) | Nonwoven cloth composite nanofiltration membrane and preparation method and application thereof | |
| CN106149472A (en) | fast qualitative filter paper and preparation method thereof | |
| CN105951528A (en) | Rapid quantitative filter paper and preparation method thereof | |
| JP2018517863A (en) | Method for producing cellulose nanofibrils | |
| CN106192581A (en) | Quantitative filter paper and preparation method thereof at a slow speed | |
| CN103243611B (en) | Wrinkle filter paper and manufacture craft thereof | |
| CN104208950A (en) | Sea-island composite fiber filtering material and preparation method thereof | |
| CN106120467A (en) | Super snail qualitative filter paper and preparation method thereof | |
| CN104562443A (en) | Skin non-woven fabric with one water absorbing infiltration side and one water-proof and water locking side and manufacturing method | |
| CN106120465A (en) | Qualitative filter paper and preparation method thereof at a slow speed | |
| CN106192582A (en) | Middling speed quantitative filter paper and preparation method thereof | |
| CN103276630A (en) | Engine oil and air filter paper and its making technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |