CN113089377A - Preparation method of high-efficiency low-resistance fully-synthetic fiber air filtering material - Google Patents
Preparation method of high-efficiency low-resistance fully-synthetic fiber air filtering material Download PDFInfo
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- CN113089377A CN113089377A CN202110367090.8A CN202110367090A CN113089377A CN 113089377 A CN113089377 A CN 113089377A CN 202110367090 A CN202110367090 A CN 202110367090A CN 113089377 A CN113089377 A CN 113089377A
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- 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
- 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
- D21H13/20—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
-
- 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
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
-
- 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
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Filtering Materials (AREA)
Abstract
The invention relates to a preparation method of a high-efficiency low-resistance fully synthetic fiber air filtering material, belonging to the technical field of automobile air filtering materials. The invention comprises the following steps: (1) firstly, dispersing 1.5D polyester fibers and 0.6D polyester fibers; adding glass fiber for dispersion, then adding 0.3D polyester fiber for dispersion, and finally adding skin-core structure bi-component polyester fiber for dispersion; (2) sending the mixed pulp suspension to an inclined wire paper machine, distributing pulp in a single layer, and integrally manufacturing and forming to obtain a raw paper page; (3) drying the base paper sheet; (4) gluing by using acrylic resin glue; (5) and (5) drying and curling. The air filtering material prepared by the method has the advantages of ensuring the economic use requirement of long service life and the precision requirement of being suitable for any road condition, avoiding the problem that the traditional wood pulp paper has poor moisture resistance and is easy to deform, avoiding the risk of delamination of the composite material, along with low resistance and high efficiency.
Description
Technical Field
The invention relates to a preparation method of a high-efficiency low-resistance fully synthetic fiber air filtering material, belonging to the technical field of automobile air filtering materials.
Background
The filter paper is a key material of the filter, and the air filter paper has higher requirements on air inlet resistance, filter precision and service life. Traditional wood pulp paper or wood pulp adds polyester fiber's technology can only reach F7 level on filter accuracy, and the resistance of admitting air is great simultaneously, and is comparatively sensitive to the environment, and south weather is moist overcast and rainy more, can cause the filter core to absorb moisture and then cause the resistance to rise, and the oil consumption increases.
At present, some manufacturers popularize nanopaper, and the purpose of high precision and long service life is achieved by using wood pulp paper as a framework and coating PVDF or PTFE material on the surface, but in the actual production process, the coating technology has great influence on the final effect, the product stability is poor, the condition of membrane damage is easy to occur in the actual use, the performance is changed in the use process, and the engine is easy to be damaged.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the preparation method of the high-efficiency low-resistance fully-synthetic fiber air filtering material is scientific and reasonable in design, the prepared air filtering material meets the economic use requirement of long service life, can meet the precision requirement of being suitable for any road condition, avoids the problem that the traditional wood pulp paper is poor in moisture resistance and easy to deform, avoids the risk of delamination of a composite material, and has the advantages of low resistance and high efficiency.
The preparation method of the high-efficiency low-resistance fully synthetic fiber air filter material comprises the following steps:
(1) pulping: dispersing polyester fibers and glass fibers, namely dispersing 1.5D polyester fibers and 0.6D polyester fibers for 5 min; adding glass fiber, dispersing for 1min, adding 0.3D polyester fiber, dispersing for 2min, and adding skin-core structure bicomponent polyester fiber, dispersing for 1 min;
(2) molding: sending the mixed pulp suspension prepared in the step (1) to an inclined wire paper machine, distributing pulp in a single layer, and integrally making paper to obtain a base paper sheet;
(3) drying; drying the base paper sheet;
(4) gluing: gluing by using acrylic resin glue;
(5) and (3) drying and curling: and drying and curling the semi-finished product after gluing to obtain a finished product.
Preferably, in the step (1), the pulping comprises the following raw materials in parts by weight:
27-32 parts of 3D polyester fiber, 18-23 parts of 0.6D polyester fiber and 2-5 parts of glass fiber with the beating degree of more than 50 DEG SR; 10-15 parts of bicomponent polyester fiber with a sheath-core structure; 7-13 parts of 0.3D polyester fiber.
The polyester fiber can improve the water resistance, prolong the service life and reduce the resistance; the glass fiber improves the aging resistance and the precision.
Preferably, in the step (1), the dispersion process is carried out by a hydropulper, and the mass concentration of the fibers in water is controlled to be 7-12%.
Preferably, in the step (1), the dispersing water is 30% pure water and 70% clear water.
Preferably, in the step (1), the dispersed slurry uniformly passes through a high-frequency fluffer without cutter alignment and enters a slurry preparation tank.
Preferably, in the step (1), water is added in an amount of 0.12% by mass of the sum of the total mass of the polyester fibers and the glass fibers during dispersion.
Preferably, in step (3), the base paper sheet is dried to a dryness of 50%.
Preferably, the paper has a basis weight of 100 grams per square meter when coated with the adhesive.
Preferably, in the step (5), the drying temperature is 110 ℃.
Preferably, the vehicle speed is controlled at 60m/min during winding.
The invention provides different functions for fibers with different specifications during pulping, which comprises the following steps:
the 0.6D polyester fiber and the superfine 0.3D polyester fiber are used as nano-grade materials to provide higher filtering precision, and the 1.5D polyester fiber mainly provides high ageing resistance and strength capability; the addition of the glass fiber mainly improves the filtration precision of the product; the bicomponent fiber is in a sheath-core structure, the sheath-core structure has different high and low melting points, and the bicomponent polyester fiber with the sheath-core structure is added to melt in the drying process of the drying cylinder to play a role in crosslinking reaction and improving the strength by utilizing the characteristic of low melting point of the sheath. The invention ensures the most reasonable cost control and produces high-efficiency products through reasonable collocation. In addition, the invention also combines surface coating to ensure the strength of the fully synthetic fiber material.
The fiber dispersing ability of different specifications is different, and the invention firstly disperses the longer fiber, and then adds the microfine fiber and the bi-component fiber, so as to ensure that the mixed fiber can reach the best dispersion state.
Compared with the traditional wood pulp paper, the strength of the synthetic fiber can be greatly attenuated, and the invention achieves a material with certain strength by reasonably matching various polyester fibers and reasonably adding a certain amount of bi-component fiber and then coating high-strength latex in a machine.
Compared with the prior art, the invention achieves the following beneficial effects:
the invention mainly adopts the full synthetic fiber mixed papermaking integral forming technology, thereby not only ensuring the economic use requirement of long service life (the traditional wood pulp has certain limitations on aging resistance, wet deformation resistance and filtering precision, the composite material has larger dependence on the stability of the material, the film covering amount and the firmness, the full synthetic fiber has the advantages of stability and high efficiency), but also ensuring the precision requirement of being applicable to any road conditions, meanwhile, the problem that the traditional wood pulp paper is poor in moisture resistance and easy to deform is avoided, the risk of delamination of the composite material is avoided, the prepared air filter material has the advantages of long service life, high precision, low resistance and high efficiency, the filter precision (ISO16890) of epm1 is more than 80 percent can be achieved, the filter has good filtering effect on severe environment areas such as mining areas and the like, and simultaneously has good back flushing effect and low surface filtering resistance, and can reach the service life of 10 km.
Detailed Description
The present invention will be further described with reference to the following examples.
The sheath-core structure bicomponent polyester fiber used in the examples has a low-temperature melting point of 110 ℃ and a high-temperature melting point of 220 ℃, and the manufacturer comprises: the Japanese emperor.
Example 1
A preparation method of a high-efficiency low-resistance fully synthetic fiber air filtering material comprises the following steps:
(1) pulping: dispersing polyester fibers and glass fibers by a hydrapulper, and firstly dispersing 1.5D polyester fibers and 0.6D polyester fibers for 5 min; adding glass fiber for dispersing for 1min, then adding 0.3D polyester fiber for dispersing for 2min, and finally adding skin-core structure bi-component polyester fiber for dispersing for 1min, wherein the mass concentration of the fiber in water is controlled to be 7%; the dispersing water is 30% pure water and 70% clear water;
the pulping process comprises the following raw materials in parts by weight:
27 parts of 3D polyester fiber, 23 parts of 0.6D polyester fiber and 2 parts of glass fiber with the beating degree of 50 DEG SR; 15 parts of bicomponent polyester fiber with a sheath-core structure; 7 parts of 0.3D polyester fiber.
(2) Molding: sending the mixed pulp suspension prepared in the step (1) to an inclined wire paper machine, distributing pulp in a single layer, and integrally making paper to obtain a base paper sheet;
(3) drying; drying the base paper page until the dryness is 50%;
(4) gluing: coating the acrylic resin adhesive to obtain paper with the quantitative ratio of 100g per square meter;
(5) and (3) drying and curling: drying the semi-finished product after gluing, wherein the drying temperature is 110 ℃, and the vehicle speed is controlled at 60m/min for curling to obtain the finished product.
Example 2
A preparation method of a high-efficiency low-resistance fully synthetic fiber air filtering material comprises the following steps:
(1) pulping: dispersing polyester fibers and glass fibers by a hydrapulper, and firstly dispersing 1.5D polyester fibers and 0.6D polyester fibers for 5 min; adding glass fiber for dispersing for 1min, then adding 0.3D polyester fiber for dispersing for 2min, and finally adding skin-core structure bi-component polyester fiber for dispersing for 1min, wherein the mass concentration of the fiber in water is controlled to be 7-12%; the dispersing water is 30% pure water and 70% clear water;
the pulping process comprises the following raw materials in parts by weight:
32 parts of 3D polyester fibers, 18 parts of 0.6D polyester fibers and 5 parts of glass fibers with the beating degree of 60 DEG SR; 10 parts of bicomponent polyester fiber with a sheath-core structure; 13 parts of 0.3D polyester fiber.
(2) Molding: sending the mixed pulp suspension prepared in the step (1) to an inclined wire paper machine, distributing pulp in a single layer, and integrally making paper to obtain a base paper sheet;
(3) drying; drying the base paper page until the dryness is 50%;
(4) gluing: coating the acrylic resin adhesive to obtain paper with the quantitative ratio of 100g per square meter;
(5) and (3) drying and curling: drying the semi-finished product after gluing, wherein the drying temperature is 110 ℃, and the vehicle speed is controlled at 60m/min for curling to obtain the finished product.
Example 3
A preparation method of a high-efficiency low-resistance fully synthetic fiber air filtering material comprises the following steps:
(1) pulping: dispersing polyester fibers and glass fibers by a hydrapulper, and firstly dispersing 1.5D polyester fibers and 0.6D polyester fibers for 5 min; adding glass fiber for dispersing for 1min, then adding 0.3D polyester fiber for dispersing for 2min, and finally adding skin-core structure bi-component polyester fiber for dispersing for 1min, wherein the mass concentration of the fiber in water is controlled to be 7-12%; the dispersing water is 30% pure water and 70% clear water;
the pulping process comprises the following raw materials in parts by weight:
30 parts of 3D polyester fibers, 21 parts of 0.6D polyester fibers and 3 parts of glass fibers with the beating degree of 55 DEG SR; 12 parts of sheath-core structure bi-component polyester fiber; 11 parts of 0.3D polyester fiber.
(2) Molding: sending the mixed pulp suspension prepared in the step (1) to an inclined wire paper machine, distributing pulp in a single layer, and integrally making paper to obtain a base paper sheet;
(3) drying; drying the base paper page until the dryness is 50%;
(4) gluing: coating the acrylic resin adhesive to obtain paper with the quantitative ratio of 100g per square meter;
(5) and (3) drying and curling: drying the semi-finished product after gluing, wherein the drying temperature is 110 ℃, and the vehicle speed is controlled at 60m/min for curling to obtain the finished product.
Comparative example 1
The other examples are the same as those in example 1, except that:
bicomponent polyester fibers with a sheath-core structure were not added.
Comparative example 2
The other examples are the same as those in example 1, except that:
no 0.6D polyester fiber was added.
The products prepared in examples 1-3 and comparative examples 1-2 were tested and the results are shown in Table 1.
Testing according to ISO5011 standard: test equipment, Palas, germany, test medium a2 fine ash, wind speed 11.1 cm/s:
DOP efficiency: test equipment TSI8130A.
TABLE 1
Of course, the foregoing is only a preferred embodiment of the invention and should not be taken as limiting the scope of the embodiments of the invention. The present invention is not limited to the above examples, and equivalent changes and modifications made by those skilled in the art within the spirit and scope of the present invention should be construed as being included in the scope of the present invention.
Claims (10)
1. A preparation method of a high-efficiency low-resistance fully synthetic fiber air filtering material is characterized by comprising the following steps: the method comprises the following steps:
(1) pulping: dispersing polyester fibers and glass fibers, namely dispersing 1.5D polyester fibers and 0.6D polyester fibers; adding glass fiber for dispersion, then adding 0.3D polyester fiber for dispersion, and finally adding skin-core structure bi-component polyester fiber for dispersion;
(2) molding: sending the mixed pulp suspension prepared in the step (1) to an inclined wire paper machine for papermaking and forming to obtain a base paper sheet;
(3) drying; drying the base paper sheet;
(4) gluing: gluing by using acrylic resin glue;
(5) and (3) drying and curling: and drying and curling the semi-finished product after gluing to obtain a finished product.
2. The preparation method of the high-efficiency low-resistance fully synthetic fiber air filter material as claimed in claim 1, wherein the preparation method comprises the following steps: in the step (1), the pulping comprises the following raw materials in parts by weight:
27-32 parts of 3D polyester fiber, 18-23 parts of 0.6D polyester fiber and 2-5 parts of glass fiber with the beating degree of more than 50 DEG SR; 10-15 parts of bicomponent polyester fiber with a sheath-core structure; 7-13 parts of 0.3D polyester fiber.
3. The preparation method of the high-efficiency low-resistance fully synthetic fiber air filter material as claimed in claim 1, wherein the preparation method comprises the following steps: in the step (1), the dispersion process is carried out through a hydrapulper, and the mass concentration of the fiber in water is controlled to be 7-12%.
4. The preparation method of the high-efficiency low-resistance fully synthetic fiber air filter material as claimed in claim 1, wherein the preparation method comprises the following steps: in the step (1), the dispersing water is 30% pure water and 70% clear water.
5. The preparation method of the high-efficiency low-resistance fully synthetic fiber air filter material as claimed in claim 1, wherein the preparation method comprises the following steps: in the step (1), the dispersed slurry uniformly passes through a high-frequency fluffer without cutter alignment and enters a slurry preparation tank.
6. The preparation method of the high-efficiency low-resistance fully synthetic fiber air filter material as claimed in claim 1, wherein the preparation method comprises the following steps: in the step (1), water in an amount of 0.12% by mass of the sum of the total mass of the polyester fibers and the glass fibers is added during dispersion.
7. The preparation method of the high-efficiency low-resistance fully synthetic fiber air filter material as claimed in claim 1, wherein the preparation method comprises the following steps: in the step (3), the base paper sheet is dried to a dryness of 50%.
8. The preparation method of the high-efficiency low-resistance fully synthetic fiber air filter material as claimed in claim 1, wherein the preparation method comprises the following steps: when the glue is applied, the paper quantitative is 100 g/square meter.
9. The preparation method of the high-efficiency low-resistance fully synthetic fiber air filter material as claimed in claim 1, wherein the preparation method comprises the following steps: in the step (5), the drying temperature is 110 ℃.
10. The preparation method of the high-efficiency low-resistance fully synthetic fiber air filter material as claimed in claim 1, wherein the preparation method comprises the following steps: and when in coiling, the vehicle speed is controlled to be 50-70 m/min.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673031A (en) * | 2022-04-08 | 2022-06-28 | 山东仁丰特种材料股份有限公司 | Preparation method of high-performance air filter paper for heavy-duty vehicle |
| CN114808542A (en) * | 2022-04-20 | 2022-07-29 | 山东仁丰特种材料股份有限公司 | Fully synthetic engine oil filtering material and preparation method thereof |
| CN115364579A (en) * | 2022-08-05 | 2022-11-22 | 东风商用车有限公司 | Air filtering material and preparation method and application thereof |
| CN116510422A (en) * | 2023-04-17 | 2023-08-01 | 山东仁丰特种材料股份有限公司 | Gradient total-synthetic engine oil filter material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796823A (en) * | 2018-04-17 | 2018-11-13 | 华南理工大学 | Microcosmic gradient-structure filtering material of efficient low-resistance micro nanometer fiber and preparation method thereof |
| CN111254753A (en) * | 2020-03-17 | 2020-06-09 | 珠海菲伯过滤材料有限公司 | Efficient water-resistant air filtering material and preparation method thereof |
-
2021
- 2021-04-06 CN CN202110367090.8A patent/CN113089377B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796823A (en) * | 2018-04-17 | 2018-11-13 | 华南理工大学 | Microcosmic gradient-structure filtering material of efficient low-resistance micro nanometer fiber and preparation method thereof |
| CN111254753A (en) * | 2020-03-17 | 2020-06-09 | 珠海菲伯过滤材料有限公司 | Efficient water-resistant air filtering material and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673031A (en) * | 2022-04-08 | 2022-06-28 | 山东仁丰特种材料股份有限公司 | Preparation method of high-performance air filter paper for heavy-duty vehicle |
| CN114808542A (en) * | 2022-04-20 | 2022-07-29 | 山东仁丰特种材料股份有限公司 | Fully synthetic engine oil filtering material and preparation method thereof |
| CN115364579A (en) * | 2022-08-05 | 2022-11-22 | 东风商用车有限公司 | Air filtering material and preparation method and application thereof |
| CN115364579B (en) * | 2022-08-05 | 2024-01-19 | 东风商用车有限公司 | Air filtering material and preparation method and application thereof |
| CN116510422A (en) * | 2023-04-17 | 2023-08-01 | 山东仁丰特种材料股份有限公司 | Gradient total-synthetic engine oil filter material and preparation method thereof |
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