CN115193164B - Environment-friendly filter material and preparation method thereof - Google Patents

Environment-friendly filter material and preparation method thereof Download PDF

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Publication number
CN115193164B
CN115193164B CN202210848095.7A CN202210848095A CN115193164B CN 115193164 B CN115193164 B CN 115193164B CN 202210848095 A CN202210848095 A CN 202210848095A CN 115193164 B CN115193164 B CN 115193164B
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Prior art keywords
coating
filter material
environment
friendly
filter layer
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CN115193164A (en
Inventor
朱靓靓
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Jiangsu Lyudi Environmental Filtering Material Co ltd
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Jiangsu Lyudi Environmental Filtering Material Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216—Bicomponent or multicomponent fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B01D2239/0478—Surface coating material on a layer of the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0613—Woven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1275—Stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1291—Other parameters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/24—Polymers or copolymers of alkenylalcohols or esters thereof; Polymers or copolymers of alkenylethers, acetals or ketones
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34—Polyamides
    • D06M2101/36—Aromatic polyamides

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filtering Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention relates to an environment-friendly filter material, which comprises the following components: the environment-friendly safety layer is coated on the two surfaces of the basic filter layer; the environment-friendly safety layer comprises: a plurality of first coatings and second coatings which are alternately overlapped with each other; wherein the first coating is a coating with at least wear resistance; the second coating at least has a coating with saline-alkali resistance, and the invention provides an environment-friendly filter material, which comprises reinforcing ribs, transverse beams and longitudinal beams, wherein the reinforcing ribs are arranged in a basic filter layer, and a plurality of the transverse beams and the longitudinal beams are respectively arranged on the side surface of the basic filter layer.

Description

Environment-friendly filter material and preparation method thereof
Technical Field
The invention relates to the technical field of environment-friendly filter cloth, in particular to an environment-friendly filter material and a preparation method thereof.
Background
In the existing scheme, when the filter material is used, the tolerance of different materials to different acid and alkali is different due to the fact that the acid and alkali of water quality from different sources are different, the filter material can be damaged after long-time use, and the filter material has to be replaced when the filter material is damaged, so that the production efficiency is affected, and the time cost is increased.
In addition, in the prior art, the strength of the existing filter cloth is reduced when the filter cloth is used, if the filter cloth is used for a long time, damage and the like can occur, and if the strength of the filter cloth cannot be increased, the whole use effect can be affected, so that the use cost is increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an environment-friendly filter material and a preparation method thereof, so as to solve the technical problem that the filter material cannot withstand saline-alkali environment.
In order to achieve the above purpose, the present invention provides the following technical solutions: an environmental protection filter material, comprising:
a base filter layer;
environmental protection safety layers coated on two surfaces of the basic filter layer;
the environment-friendly safety layer comprises: a plurality of first coatings and second coatings which are alternately overlapped with each other; wherein the first coating is a coating with at least wear resistance; the second coating layer has at least a coating layer with a salt and alkali resistant property.
Further preferably, the basic filter layer comprises the following components in percentage by mass: 85-90% of vinylon filaments, 4-7% of terephthalic acid, 3-5% of polyester prepared by polycondensation of 1, 4-butanediol and 3-8% of aromatic fiber.
Further preferably, the foundation filter layer comprises reinforcing ribs, transverse beams and longitudinal beams, wherein the reinforcing ribs are arranged in a plurality, the reinforcing ribs are respectively arranged on the foundation filter layer, the transverse beams and the longitudinal beams are respectively arranged in a plurality, the transverse beams and the longitudinal beams are respectively arranged on two sides of the foundation filter layer, each longitudinal beam is provided with a longitudinal strip, each transverse beam is provided with a wear-resistant sleeve and a transverse strip, and the transverse strips are arranged in the wear-resistant sleeves.
Further preferably, the environment-friendly safety layer forms a filtering hole by means of air flow impact after being sprayed on the basic filtering layer; the total thickness between the first coating and the second coating is not less than 200um.
Further preferably, the number of the first coating layer and the second coating layer is at least three: the first coating is a wear-resistant coating formed by spraying any two or more of epoxy resin, phenolic resin and polyester resin; the second coating is a salt and alkali resistant coating formed by spraying any two or more of alkyd enamel, PU type coating and zinc-rich epoxy.
The invention provides a preparation method of an environment-friendly filter material, which comprises the following steps:
the polyester prepared by polycondensation of vinylon filaments, terephthalic acid and 1, 4-butanediol and the aromatic fiber are blended into yarns according to the proportion to be used as raw materials for manufacturing a basic filter layer;
immersing the blended yarn in an ultra-high molecular weight polyethylene solution for 1 hour, then fishing out the yarn, placing the yarn on a drying rack for drying, and discharging the water in the yarn;
the dried yarn is wound on a warp beam or a beam in parallel according to the specified length and width, and the effects of uniform tension, uniform yarn arrangement and uniform winding density are achieved;
any one of the first coating and the second coating is coated on the front surface and the back surface of the basic filter layer, and the preliminarily formed environment-friendly filter material is obtained after high-temperature shaping;
after the first coating or the second coating coated on the front surface and the back surface of the basic filter layer is solidified, the other coating is coated on the solidified first coating or the solidified second coating in an alternating mode, and then high-temperature setting is carried out to obtain the corresponding environment-friendly filter material.
Further preferably, after the environmental protection filter material is obtained after the high-temperature setting, the method comprises the following steps: and (5) carrying out high Wen Gaguang treatment on the filter material to reduce the air permeability of the filter material and achieve the effect of double-sided smoothness.
Further preferably, the vinylon filaments are woven according to a warp density of 358 to 480 filaments/10 cm and a weft density of 145 to 213 filaments/10 cm.
Further preferably, the warping treatment speed is 200-220m/min and the tension is 14.5-25.8 kg/loop.
Further preferably, the high temperature setting is performed by heat setting in the temperature ranges of 95-105 ℃, 220-240 ℃ and 251-280 ℃ in sequence.
Compared with the prior art, the invention provides an environment-friendly filter material and a preparation method thereof, and the environment-friendly filter material has the following beneficial effects:
1. the invention provides an environment-friendly filter material, which comprises reinforcing ribs, transverse beams and longitudinal beams, wherein the reinforcing ribs are arranged in a basic filter layer, and a plurality of the transverse beams and the longitudinal beams are respectively arranged on the side surfaces of the basic filter layer.
2. The invention provides a production method of an environment-friendly filter material, which blends polyester prepared by polycondensation of vinylon filaments, terephthalic acid and 1, 4-butanediol and aromatic fiber into yarns according to a proportion to be used as raw materials for manufacturing a basic filter layer; immersing the blended yarn in an ultra-high molecular weight polyethylene solution for 1 hour, then fishing out the yarn, placing the yarn on a drying rack for drying, and discharging the water in the yarn; the dried yarn is wound on a warp beam or a beam in parallel according to the specified length and width, and the effects of uniform tension, uniform yarn arrangement and uniform winding density are achieved; any one of the first coating and the second coating is coated on the front surface and the back surface of the basic filter layer, and the preliminarily formed environment-friendly filter material is obtained after high-temperature setting.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an environment-friendly filter material in the invention;
FIG. 2 is a schematic view of an environment-friendly filter material without a first coating and a second coating;
FIG. 3 is an enlarged view of a portion of FIG. 2A;
fig. 4 is a partial enlarged view of B in fig. 3.
In the figure: 1. a base filter layer; 2. a first coating; 3. a second coating; 4. reinforcing ribs; 5. a transverse beam; 6. a longitudinal beam; 7. a longitudinal strip; 8. a wear-resistant sleeve; 9. a transverse bar; 10. and (5) filtering the holes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
referring to fig. 1-4, an environment-friendly filter material comprises: a basic filter layer 1; environmental protection layers coated on two surfaces of the basic filter layer 1; the environment-friendly safety layer comprises: a plurality of first coatings 2 and second coatings 3 which are alternately overlapped with each other; wherein the first coating 2 is a coating with at least wear resistance; the second coating 3 at least has a coating with saline-alkali resistance, and the basic filter layer 1 comprises the following components in percentage by mass: 85-90% of vinylon filaments, 4-7% of terephthalic acid, 3-5% of polyester prepared by polycondensation of 1, 4-butanediol and 3-8% of aromatic fiber, wherein the basic filter layer 1 comprises a plurality of reinforcing ribs 4, transverse beams 5 and longitudinal beams 6, the reinforcing ribs 4 are respectively arranged on the basic filter layer 1, the transverse beams 5 and the longitudinal beams 6 are respectively arranged in a plurality, the transverse beams 5 and the longitudinal beams 6 are respectively arranged on two sides of the basic filter layer 1, each longitudinal beam 6 is provided with a longitudinal strip 7, each transverse beam 5 is provided with a wear-resistant sleeve 8 and a transverse strip 9, the transverse strips 9 are arranged in the wear-resistant sleeve 8, and after being sprayed on the basic filter layer 1, a ring security layer forms a filter hole 10 in an airflow impact mode; the total thickness between the first coating layer 2 and the second coating layer 3 is not less than 200um, and the number of the first coating layer 2 and the second coating layer 3 is at least three: the first coating 2 is a wear-resistant coating formed by spraying any two or more of epoxy resin, phenolic resin and polyester resin; the second coating 3 is a salt and alkali resistant coating formed by spraying any two or more of alkyd enamel, PU type coating and zinc-rich epoxy.
Example 2:
the invention provides a preparation method of an environment-friendly filter material, which comprises the following steps:
the polyester prepared by polycondensation of vinylon filaments, terephthalic acid and 1, 4-butanediol and the aromatic fiber are blended into yarns according to the proportion to be used as raw materials for manufacturing the basic filter layer 1;
immersing the blended yarn in an ultra-high molecular weight polyethylene solution for 1 hour, then fishing out the yarn, placing the yarn on a drying rack for drying, and discharging the water in the yarn;
the dried yarn is wound on a warp beam or a beam in parallel according to the specified length and width, and the effects of uniform tension, uniform yarn arrangement and uniform winding density are achieved;
any one of the first coating 2 and the second coating 3 is coated on the front surface and the back surface of the basic filter layer 1, and the preliminarily formed environment-friendly filter material is obtained after high-temperature shaping;
after the first coating 2 or the second coating 3 coated on the front and the back of the basic filter layer 1 is solidified, the other coating is coated on the solidified first coating 2 or the solidified second coating 3 in an alternating manner, and then high-temperature setting is carried out to obtain the corresponding environment-friendly filter material.
Further, after the environment-friendly filter material is obtained after high-temperature shaping, the method comprises the following steps: the filter material is processed by high Wen Gaguang, so that the air permeability of the filter material is reduced to achieve the effect of double-sided smoothness.
Further, vinylon filaments are woven according to the warp density of 358-480 filaments/10 cm and the weft density of 145-213 filaments/10 cm.
Further, the warping treatment speed is 200-220m/min, and the tension is 14.5-25.8 kg/loop.
Further, the high temperature setting is to heat set in the temperature range of 95-105 deg.c, 220-240 deg.c and 251-280 deg.c successively.
Example 3:
referring to fig. 1 to 4, on the basis of embodiment 1, a plurality of reinforcing ribs 4 are installed in a base filter layer 1, filter holes 10 are blown out by air flow, then strength of the base filter layer 1 is increased by a plurality of transverse beams 5 and longitudinal beams 6, transverse strips 9 are installed in a wear-resistant sleeve 8, the wear-resistant sleeve 8 is installed in the transverse beams 5, strength of the transverse beams 5 is increased by a plurality of transverse strips 9, strength of the longitudinal beams 6 is increased by a plurality of longitudinal strips 7, when the base filter layer 1 is forced in the transverse direction, strength of the base filter layer 1 is increased by the transverse beams 5 and the transverse strips 9, and when the base filter layer 1 is forced in the longitudinal direction, strength of the base filter layer 1 is increased by the longitudinal strips 7 and the longitudinal beams 6, and strength of the reinforcing ribs 4 is increased by a greater number of times of force being forced in the longitudinal direction, thereby improving use effect.
Example 4:
referring to fig. 1 to 4, on the basis of example 2, polyester prepared by polycondensation of vinylon filaments, terephthalic acid, 1, 4-butanediol and aromatic fiber are blended into yarns according to a proportion to be used as raw materials for manufacturing a basic filter layer 1; immersing the blended yarn in an ultra-high molecular weight polyethylene solution for 1 hour, then fishing out the yarn, placing the yarn on a drying rack for drying, and discharging the water in the yarn; the dried yarn is wound on a warp beam or a beam in parallel according to the specified length and width, and the effects of uniform tension, uniform yarn arrangement and uniform winding density are achieved; any one of the first coating 2 and the second coating 3 is coated on the front surface and the back surface of the basic filter layer 1, and the preliminarily formed environment-friendly filter material is obtained after high-temperature shaping; after the first coating 2 or the second coating 3 coated on the front and the back of the basic filter layer 1 is solidified, the other coating is coated on the solidified first coating 2 or the solidified second coating 3 in an alternating manner, and then high-temperature shaping is carried out to obtain a corresponding environment-friendly filter material, and after the environment-friendly filter material is obtained after the high-temperature shaping, the method comprises the following steps: the filter material is processed by high Wen Gaguang, so that the air permeability of the filter material is reduced to achieve the effect of double-sided smoothness, vinylon filaments are woven according to the warp density of 358-480 filaments/10 cm and the weft density of 145-213 filaments/10 cm, the warping treatment speed is 200-220m/min, the tension is 14.5-25.8 kg/loop, and the filter material is subjected to high-temperature shaping to be subjected to heat shaping in the temperature ranges of 95-105 ℃, 220-240 ℃ and 251-280 ℃ in sequence.
In all the above mentioned solutions, in which the connection between two components can be chosen according to the actual situation, a welded, bolt-and-nut-fitted connection, a bolt-or-screw connection or other known connection means, which are not described in detail herein, where reference is made to a written fixed connection, the preferred consideration is welding, although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that numerous variations, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims (8)

1. An environmental protection filter material, characterized by comprising:
a base filter layer;
environmental protection layers coated on two surfaces of the basic filter layer (1);
the environment-friendly safety layer comprises: a plurality of first coatings (2) and second coatings (3) which are alternately overlapped with each other; wherein the first coating (2) is a coating with at least wear resistance; the second coating (3) possesses the coating of salt and alkali resistance characteristic at least, basic filter layer (1) includes strengthening rib (4), transverse beam (5) and vertical roof beam (6), strengthening rib (4) are provided with a plurality ofly, and a plurality of strengthening rib (4) are installed respectively on basic filter layer (1), transverse beam (5) and vertical roof beam (6) are provided with a plurality of respectively, and a plurality of transverse beam (5) and vertical roof beam (6) are installed respectively in the both sides of basic filter layer (1), every all be equipped with vertical strip (7) on vertical roof beam (6), every all be equipped with wear sleeve (8) and horizontal strip (9) on transverse beam (5), horizontal strip (9) are installed in wear sleeve (8), the quantity of first coating (2) and second coating (3) is at least three: the first coating (2) is a wear-resistant coating formed by spraying any two or more of epoxy resin, phenolic resin and polyester resin; the second coating (3) is a salt and alkali resistant coating formed by spraying any two or more of alkyd enamel, PU type coating and zinc-rich epoxy.
2. An environmental protection filter material according to claim 1, wherein: the basic filter layer (1) comprises the following components in percentage by mass: 85-90% of vinylon filaments, 4-7% of terephthalic acid, 3-5% of polyester prepared by polycondensation of 1, 4-butanediol and 3-8% of aromatic fiber.
3. An environmental protection filter material according to claim 1, wherein: the environment-friendly safety layer forms a filtering hole (10) in an airflow impact mode after being sprayed on the basic filtering layer (1); the total thickness between the first coating (2) and the second coating (3) is greater than 200 μm.
4. A method for preparing the environment-friendly filter material according to any one of claims 1 to 3, comprising the following steps:
the polyester prepared by polycondensation of vinylon filaments, terephthalic acid and 1, 4-butanediol and the aromatic fiber are blended into yarns according to the proportion to be used as raw materials for manufacturing the basic filter layer (1);
immersing the blended yarn in an ultra-high molecular weight polyethylene solution for 1 hour, then fishing out the yarn, placing the yarn on a drying rack for drying, and discharging the water in the yarn;
the dried yarn is wound on a warp beam or a beam in parallel according to the specified length and width, and the effects of uniform tension, uniform yarn arrangement and uniform winding density are achieved;
any one of the first coating (2) and the second coating (3) is coated on the front surface and the back surface of the basic filter layer (1), and the preliminarily formed environment-friendly filter material is obtained after high-temperature shaping;
after the first coating (2) or the second coating (3) which is coated on the front surface and the back surface of the basic filter layer (1) is solidified, the other coating is coated on the solidified first coating (2) or the solidified second coating (3) in an alternating mode, and then high-temperature setting is carried out to obtain the corresponding environment-friendly filter material.
5. The method for preparing the environment-friendly filter material according to claim 4, which is characterized in that: after the environment-friendly filter material is obtained after high-temperature setting, the filter material is subjected to high Wen Gaguang treatment, so that the air permeability of the filter material is reduced, and the effect of double-sided smoothness is achieved.
6. The method for preparing the environment-friendly filter material according to claim 4, which is characterized in that: vinylon filaments are woven according to the warp density of 358-480 filaments/10 cm and the weft density of 145-213 filaments/10 cm.
7. The method for preparing the environment-friendly filter material according to claim 5, which is characterized in that: the dried yarn is wound on a warp beam or a beam in parallel according to the specified length and width, the warping speed is 200-220m/min, and the tension is 14.5-25.8 kg/loop.
8. The method for preparing the environment-friendly filter material according to claim 5, which is characterized in that: any one of the first coating (2) and the second coating (3) is coated on the front surface and the back surface of the basic filter layer (1), and the high-temperature setting is carried out by heat setting in the temperature ranges of 95-105 ℃, 220-240 ℃ and 251-280 ℃ in sequence.
CN202210848095.7A 2022-07-19 2022-07-19 Environment-friendly filter material and preparation method thereof Active CN115193164B (en)

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