CN113931010B - Fuel filter paper and preparation method thereof - Google Patents
Fuel filter paper and preparation method thereof Download PDFInfo
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- CN113931010B CN113931010B CN202010668172.1A CN202010668172A CN113931010B CN 113931010 B CN113931010 B CN 113931010B CN 202010668172 A CN202010668172 A CN 202010668172A CN 113931010 B CN113931010 B CN 113931010B
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- 239000000446 fuel Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000003365 glass fiber Substances 0.000 claims abstract description 26
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 22
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 229920000881 Modified starch Polymers 0.000 claims abstract description 11
- 239000004368 Modified starch Substances 0.000 claims abstract description 11
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 11
- 235000019426 modified starch Nutrition 0.000 claims abstract description 11
- 229920000728 polyester Polymers 0.000 claims abstract description 11
- 229920001225 polyester resin Polymers 0.000 claims abstract description 11
- 239000004645 polyester resin Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims description 20
- 238000004537 pulping Methods 0.000 claims description 16
- 238000010009 beating Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000011122 softwood Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 26
- 241000218631 Coniferophyta Species 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000010705 motor oil Substances 0.000 description 9
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000011002 quantification Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 235000018185 Betula X alpestris Nutrition 0.000 description 2
- 235000018212 Betula X uliginosa Nutrition 0.000 description 2
- 244000166124 Eucalyptus globulus Species 0.000 description 2
- 240000006240 Linum usitatissimum Species 0.000 description 2
- 235000004431 Linum usitatissimum Nutrition 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 241000893864 Nerium Species 0.000 description 2
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 235000010418 carrageenan Nutrition 0.000 description 2
- 229920001525 carrageenan Polymers 0.000 description 2
- 229940113118 carrageenan Drugs 0.000 description 2
- 239000000679 carrageenan Substances 0.000 description 2
- -1 dioctyl ester Chemical class 0.000 description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 2
- 235000004426 flaxseed Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 2
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
-
- 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
- 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
Abstract
The invention relates to the technical field of filter materials, and discloses fuel filter paper, which comprises an outer high-permeability low-resistance support material and an inner filter paper base paper, wherein the support material comprises 10-20 parts of mercerized wood pulp in parts by weight; 20-40 parts of polyester resin; 10-20 parts of alkali-free glass fiber chopped filaments; 1-10 parts of polyester long fiber; the filter paper base paper comprises 40-80 parts of conifer bleached wood pulp in parts by weight; 0.2-8 parts of modified starch light calcium carbonate and 10-20 parts of alkali-free glass fiber chopped filaments; 1-15 parts of fibrous binder, and the fuel filter paper and the preparation method thereof have the beneficial effects of low tightness, high filtering efficiency, long service life, high filtering precision, good strength and toughness, and convenient and safe use.
Description
Technical Field
The invention relates to the technical field of filter materials, in particular to fuel filter paper and a preparation method thereof.
Background
At present, the material of the automotive engine oil filter paper is mainly paper containing a polymer coating, and the property of the polymer material determines the performance and the service life of the engine oil filter paper. The polymer coating for the prior engine oil filter paper in China is mainly acrylic resin, and the main defects of the engine oil filter paper are as follows: poor high temperature resistance, high moisture absorption and short service life. The polymer coating commonly used abroad is mainly phenolic resin, and the high temperature resistance of the engine oil filter paper product is good, the moisture absorption rate is low, and the service life is long; however, the phenolic resin is generally dissolved in an organic solvent, so that the preparation method has the advantages of large environmental pollution, low production safety coefficient and high production cost. The engine oil filter paper generally comprises a paper filter layer which is made of common wood pulp as a main component, and the common wood pulp fiber is thin and high in tightness, so that the manufactured engine oil filter paper has the defects of high tightness, low filtering efficiency, short service life and the like, and the paper engine oil filter paper also has poor solidification, water resistance and oil resistance. For example, chinese patent application publication No.: CN103993524a, no. 20 of 2014, entitled safe and environment-friendly fuel filter paper with good fire-resistant oil stability, is characterized in that the filter paper is prepared from the following raw materials in parts by weight: 50-54 parts of birch pulp, 52-57 parts of eucalyptus pulp, 3-4 parts of melamine formaldehyde resin, 0.3-0.5 part of sodium dodecyl benzene sulfonate, 1-2 parts of dried oleander leaves, 0.5-0.7 part of carrageenan, 0.3-0.4 part of linseed gum, 3-4 parts of quartz sand, 3-4 parts of activated carbon, 2-3 parts of glass fiber, 1-2 parts of ammonium chloride, 5-7 parts of polymethyl acrylate, 2-3 parts of dioctyl ester, 1-2 parts of auxiliary agent and a proper amount of water. The fuel filter paper prepared by the method has the advantages of high tightness, low filtering efficiency, short service life, low filtering precision and poor strength and toughness.
Disclosure of Invention
The invention provides the fuel filter paper with low tightness, high filtering efficiency, long service life, high filtering precision and good strength and toughness and the preparation method thereof, and aims to solve the defects of high tightness, low filtering efficiency, short service life, low filtering precision and poor strength and toughness of the fuel filter paper in the prior art
In order to achieve the above purpose, the invention adopts the following technical scheme:
the fuel filter paper comprises an outer high-permeability low-resistance support material and an inner filter paper base paper, wherein the support material comprises 10-20 parts of mercerized wood pulp in parts by weight; 20-40 parts of polyester resin; 10-20 parts of alkali-free glass fiber chopped filaments; 1-10 parts of polyester long fiber; the filter paper base paper comprises 40-80 parts of conifer bleached wood pulp in parts by weight; 0.2-8 parts of modified starch light calcium carbonate and 10-20 parts of alkali-free glass fiber chopped filaments; 1-15 parts of fibrous binder. The fuel filter paper prepared by the preparation method has the main performance indexes of 0.33g/cm < 2 >, the filtering efficiency of 96%, the service life of 12000 km, the filtering precision of less than 18 mu m, the bursting strength of more than or equal to 335Kpa and the tensile strength of 12KN.m.
Preferably, the tightness of the fuel filter paper is 0.3-0.5 g/cm < 2 >. The high tightness ensures that the paper has good tearing strength and tensile strength, ensures that the filter paper is not easy to break and lose efficacy in the filtering work, but the high tightness also easily reduces the filtering efficiency.
Preferably, the particle size of the alkali-free glass fiber chopped strands is not more than 100nm. The fiber with smaller particle size is favorable for interweaving and forming the fiber, so that the filter paper with good strength is obtained.
Preferably, the fuel filter paper has a basis weight of 210+ -10 g/square meter. Proper quantification is determined to balance the relationship between strength, filtration and rate, too high a quantification would result in too thick a substrate and reduced filtration rate, while too low a quantification would not meet the requirements for strength and filtration.
The preparation method of the fuel filter paper comprises the following steps:
a) Taking 10-20 parts of mercerized wood pulp, 20-40 parts of polyester resin, 10-20 parts of alkali-free glass fiber chopped filaments and 1-10 parts of polyester long fibers, pulping by a pulper, and pulping by a pulping machine, wherein the beating degree of pulping is 10+/-2 ℃;
b) Taking 40-80 parts of bleached softwood pulp, 0.2-8 parts of modified starch light calcium carbonate, 10-20 parts of alkali-free glass fiber chopped filaments and 1-15 parts of fibrous binder, fluffing by a fluffer, and carrying out online grinding by a double-disc pulping machine to obtain a pulp with the pulp degree of 18-22 DEG SR;
c) The sizing agent prepared in the step a) and the step b) is respectively made and pressed in an inclined wire paper machine or a flow-measuring cylinder paper machine to be molded, and a supporting material and filter paper base paper are respectively obtained;
d) And c) drying and curing the support material obtained in the step c) in a drying cylinder at 160 ℃ to obtain the target support material.
e) And c) drying and curing the filter paper base paper obtained in the step c) in a drying cylinder at 130 ℃ to obtain the target filter paper base paper.
f) And d), carrying out hot-press bonding on the target supporting material obtained in the step d) and the target filter paper base paper obtained in the step e) in a spot-rolling hot-press roller-pair mode to obtain the target fuel filter paper.
The fuel filter paper and the preparation method thereof have the following advantages: low tightness, high filtering efficiency, long service life, high filtering precision, good strength and toughness, and convenient and safe use.
Detailed Description
The technical scheme of the invention is further specifically described by the following examples.
Comparative example
The fuel filter paper is prepared from the following raw materials in parts by weight: 50-54 parts of birch pulp, 52-57 parts of eucalyptus pulp, 3-4 parts of melamine formaldehyde resin, 0.3-0.5 part of sodium dodecyl benzene sulfonate, 1-2 parts of dried oleander leaves, 0.5-0.7 part of carrageenan, 0.3-0.4 part of linseed gum, 3-4 parts of quartz sand, 3-4 parts of activated carbon, 2-3 parts of glass fiber, 1-2 parts of ammonium chloride, 5-7 parts of polymethyl acrylate, 2-3 parts of dioctyl ester, 1-2 parts of auxiliary agent and a proper amount of water. The main performance indexes of the fuel filter paper can be achieved, the tightness is 0.52g/cm < 2 >, the filtering efficiency is 91%, the service life is 95000 km, the filtering precision is less than 23 mu m, the bursting strength is more than or equal to 297Kpa, and the tensile strength is 10.2KN.m.
Example 1
The fuel filter paper is prepared from the following components in parts by weight: 10 parts of mercerized wood pulp; 20 parts of polyester resin; 10 parts of alkali-free glass fiber chopped filaments; 1 part of polyester long fiber; the filter paper base paper comprises 40 parts of needle bleached wood pulp in parts by weight; 0.2 part of modified starch light calcium carbonate and 10 parts of alkali-free glass fiber chopped strands; 1 part of fibrous binder. The target fuel filter paper is prepared according to the following steps:
a) Mercerized wood pulp, polyester resin, alkali-free glass fiber chopped filaments and polyester long fibers are taken, pulped by a pulper, and then pulped by a pulping machine, wherein the beating degree of pulping is 8 ℃;
b) Taking bleached softwood pulp, modified starch light calcium carbonate, alkali-free glass fiber chopped strands and fibrous binders, fluffing by using a fluffer, and carrying out online polishing by using a double-disc refiner to obtain pulp with the pulp degree of 18 DEG SR;
c) The sizing agent prepared in the step a) and the step b) is respectively made and pressed in an inclined wire paper machine or a flow-measuring cylinder paper machine to be molded, and a supporting material and filter paper base paper are respectively obtained;
d) And c) drying and curing the support material obtained in the step c) in a drying cylinder at 160 ℃ to obtain the target support material.
e) And c) drying and curing the filter paper base paper obtained in the step c) in a drying cylinder at 130 ℃ to obtain the target filter paper base paper.
f) And d), carrying out hot-press bonding on the target supporting material obtained in the step d) and the target filter paper base paper obtained in the step e) in a spot-rolling hot-press roller-pair mode to obtain the target fuel filter paper.
Example 2
The fuel filter paper is prepared from the following components in parts by weight: 15 parts of mercerized wood pulp; 30 parts of polyester resin; 15 parts of alkali-free glass fiber chopped filaments; 5 parts of polyester long fibers; the filter paper base paper comprises 60 parts of needle bleached wood pulp in parts by weight; 4 parts of modified starch light calcium carbonate and 15 parts of alkali-free glass fiber chopped filaments; 8 parts of fibrous binder. The target fuel filter paper is prepared according to the following steps:
a) Mercerized wood pulp, polyester resin, alkali-free glass fiber chopped filaments and polyester long fibers are taken, pulped by a pulper, and then pulped by a pulping machine, wherein the beating degree of pulping is 10 ℃;
b) Taking bleached softwood pulp, modified starch light calcium carbonate, alkali-free glass fiber chopped strands and fibrous binders, fluffing by using a fluffer, and carrying out online polishing by using a double-disc refiner to obtain pulp with the pulp degree of 20 DEG SR;
c) The sizing agent prepared in the step a) and the step b) is respectively made and pressed in an inclined wire paper machine or a flow-measuring cylinder paper machine to be molded, and a supporting material and filter paper base paper are respectively obtained;
d) And c) drying and curing the support material obtained in the step c) in a drying cylinder at 160 ℃ to obtain the target support material.
e) And c) drying and curing the filter paper base paper obtained in the step c) in a drying cylinder at 130 ℃ to obtain the target filter paper base paper.
f) And d), carrying out hot-press bonding on the target supporting material obtained in the step d) and the target filter paper base paper obtained in the step e) in a spot-rolling hot-press roller-pair mode to obtain the target fuel filter paper.
Example 3
The fuel filter paper is prepared from the following components in parts by weight: 20 parts of mercerized wood pulp; 40 parts of polyester resin; 20 parts of alkali-free glass fiber chopped filaments; 10 parts of polyester long fiber; the filter paper base paper comprises 80 parts of needle bleached wood pulp in parts by weight; 8 parts of modified starch light calcium carbonate and 20 parts of alkali-free glass fiber chopped filaments; 15 parts of fibrous binder. The target fuel filter paper is prepared according to the following steps:
a) Mercerized wood pulp, polyester resin, alkali-free glass fiber chopped filaments and polyester long fibers are taken, pulped by a pulper, and then pulped by a pulping machine, wherein the beating degree of pulping is 12 degrees;
b) Taking bleached softwood pulp, modified starch light calcium carbonate, alkali-free glass fiber chopped strands and fibrous binders, fluffing by using a fluffer, and carrying out online polishing by using a double-disc refiner to obtain slurry with the slurry degree of 22 DEG SR;
c) The sizing agent prepared in the step a) and the step b) is respectively made and pressed in an inclined wire paper machine or a flow-measuring cylinder paper machine to be molded, and a supporting material and filter paper base paper are respectively obtained;
d) And c) drying and curing the support material obtained in the step c) in a drying cylinder at 160 ℃ to obtain the target support material.
e) And c) drying and curing the filter paper base paper obtained in the step c) in a drying cylinder at 130 ℃ to obtain the target filter paper base paper.
f) And d), carrying out hot-press bonding on the target supporting material obtained in the step d) and the target filter paper base paper obtained in the step e) in a spot-rolling hot-press roller-pair mode to obtain the target fuel filter paper.
The performance of the engine oil filter papers prepared in comparative examples and examples 1 to 3 was measured, and the measurement results are shown in Table 1.
Table 1.
| Unit (B) | Comparative example | Example 1 | Example 2 | Example 3 | |
| Quantification of | g/㎡ | 187 | 202 | 208 | 215 |
| Tightness degree | g/cm 2 | 0.52 | 0.33 | 0.33 | 0.38 |
| Filtration efficiency | % | 91 | 96 | 97 | 97 |
| Service life of the product | Kilometers | 95000 | 12000 | 12000 | 12000 |
| Filtration accuracy | μm | ＜23 | ＜18 | ＜18 | ＜18 |
| Burst strength | Kpa | 299 | 341 | 344 | 346 |
| Tensile strength | KN·m | 10.5 | 14.5 | 14.3 | 14.3 |
As can be seen from the contents of Table 1, the fuel filter paper obtained by the invention has the advantages of low tightness, high filtering efficiency, long service life, high filtering precision and good strength and toughness.
The raw materials and facilities used in the present invention are common raw materials and facilities used in the art unless otherwise specified, and the methods used in the present invention are common methods used in the art unless otherwise specified.
The fuel filter paper and the preparation method thereof have the beneficial effects of low tightness, high filtering efficiency, long service life, high filtering precision, good strength and toughness, and convenient and safe use.
Claims (3)
1. A fuel filter paper is characterized by comprising an outer high-permeability low-resistance support material and an inner filter paper base paper, wherein the support material comprises the following components in parts by weight
10-20 parts of mercerized wood pulp;
20-40 parts of polyester resin;
10-20 parts of alkali-free glass fiber chopped filaments;
1-10 parts of polyester long fiber;
the raw paper of the filter paper comprises the following components in parts by weight
40-80 parts of needle leaf bleached wood pulp;
0.2 to 8 parts of modified starch light calcium carbonate,
10-20 parts of alkali-free glass fiber chopped filaments;
1-15 parts of fibrous binder;
the tightness of the fuel filter paper is 0.3-0.5 g/cm 3 ；
The particle size of the alkali-free glass fiber chopped filaments is not more than 100nm.
2. The fuel filter paper of claim 1, wherein the fuel filter paper has a basis weight of 210±10 g/square meter.
3. A method of preparing a fuel filter paper according to any one of claims 1 to 2, comprising the steps of:
a) Taking 10-20 parts of mercerized wood pulp, 20-40 parts of polyester resin, 10-20 parts of alkali-free glass fiber chopped filaments and 1-10 parts of polyester long fibers, pulping by a pulper, and pulping by a pulping machine, wherein the beating degree of pulping is 10+/-2 ℃;
b) Taking 40-80 parts of bleached softwood pulp, 0.2-8 parts of modified starch light calcium carbonate, 10-20 parts of alkali-free glass fiber chopped filaments and 1-15 parts of fibrous binder, fluffing by a fluffer, and carrying out online grinding by a double-disc pulping machine to obtain a pulp with the pulp degree of 18-22 DEG SR;
c) Respectively making and squeezing the slurry prepared in the step a) and the step b) in an inclined wire paper machine or a side-flow cylinder paper machine to form, and respectively obtaining a supporting material and filter paper base paper;
d) Drying and curing the support material obtained in the step c) in a drying cylinder at 160 ℃ to obtain a target support material;
e) Drying and solidifying the filter paper base paper obtained in the step c) in a drying cylinder at 130 ℃ to obtain target filter paper base paper;
f) And d), carrying out hot-press bonding on the target supporting material obtained in the step d) and the target filter paper base paper obtained in the step e) in a spot-rolling hot-press roller-pair mode to obtain the target fuel filter paper.
Priority Applications (1)
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| CN202010668172.1A CN113931010B (en) | 2020-07-13 | 2020-07-13 | Fuel filter paper and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010668172.1A CN113931010B (en) | 2020-07-13 | 2020-07-13 | Fuel filter paper and preparation method thereof |
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| CN113931010B true CN113931010B (en) | 2023-11-10 |
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