CN110512353A - A kind of filtering polypropylene-base spunlace non-woven material and its preparation method and application - Google Patents
A kind of filtering polypropylene-base spunlace non-woven material and its preparation method and application Download PDFInfo
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- CN110512353A CN110512353A CN201910828590.XA CN201910828590A CN110512353A CN 110512353 A CN110512353 A CN 110512353A CN 201910828590 A CN201910828590 A CN 201910828590A CN 110512353 A CN110512353 A CN 110512353A
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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
- 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
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
-
- 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
- B01D2239/0618—Non-woven
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The present invention relates to the preparation technical fields of filtering material more particularly to a kind of filtering polypropylene-base spunlace non-woven material and its preparation method and application.By mass percentage, raw material composition includes following component: polypropylene fibre 50-70%；One of acrylic fiber, polyester fiber and nylon fibre or combinations thereof 30-50%.The described method includes: 1) be combed into uniform fiber net after mixing raw material in proportion, then laying from level to level is carried out to web, change the orientation in length and breadth of fiber in lay-up process in real time, longitudinal drawing-off is carried out to the web after lapping after the completion, obtains Fiber Laminated net；2) will at least two layers step (1) Fiber Laminated net overlap after carry out spun lacing reinforcing, dried after the completion to get.Filtering material of the invention itself needs preferable tension strength, has certain resilience, and wants the features such as corrosion-resistant, antimicrobial.
Description
Technical field
The present invention relates to the preparation technical field of filtering material more particularly to a kind of filtering polypropylene-base spunlace non-wovens
Material and its preparation method and application.
Background technique
It is only intended to increase understanding of the overall background of the invention for information disclosed in background of invention, without
It is existing well known to persons skilled in the art so to be considered as recognizing or imply that information composition has become in any form
Technology.
Application advantage of the spunlace non-woven product in terms of filtering is a lot of, and the entanglement of high-pressure hydraulic effect can be formed preferably
Three-dimensional structure eyelet, tiny, uniform, density is high, higher porosity can preferably play the role of filtering.Therefore, these are special
Point further shows potential using value of the spunlace non-woven material in terms of filtering.Patent document CN200480030704 is public
A kind of composite nonwoven material that improved hydroentangled good combination is integral is opened, the composite nonwoven material includes
One kind is by continuous filaments, synthetic staple, and the mixture of natural fiber composition；Wherein continuous filaments is from polypropylene, polyester
It is selected in class and polyactide, above-mentioned synthetic staple is fine from polyethylene, polypropylene, polyesters, polyamide-based, artificial silk and solvent-spun
It is selected in cellulose fiber, and above-mentioned natural fiber is preferably slurry fiber.However, the present inventor studies discovery: because while
Polypropylene fibre has many advantages, such as that light specific gravity, intensity are high, elasticity is good, corrosion-resistant, and has certain antibacterial bacteriostatic performance, but above-mentioned
Fiber combinations preparation spunlace non-woven material be not for as liquid, solid filtering material and develop, especially not
It is therefore to be poorly suited for use in filtration art for the filtering of waste water, exhaust gas etc..
In addition, people's market survey early period according to the present invention, at present spunlace non-woven material filtration art (gas filtration,
Liquid filtering) application it is very narrow, be primarily limited to processing difficulties on spun lacing production line of the selection and material of material,
Not easily molded and material property is unable to satisfy higher the problems such as requiring.
Summary of the invention
For above-mentioned problem, the present invention is intended to provide a kind of filtering polypropylene-base spunlace non-woven material and its preparation
Method, in order to overcome the problems, such as spunlace non-woven material in terms of filtering using limited.Polypropylene-base water prepared by the present invention
Spraying non-woven material has many advantages, such as that porosity is high, intensity is good, corrosion-resistant, antibacterial bacteriostatic.
An object of the present disclosure: a kind of filtering polypropylene-base spunlace non-woven material is provided.
Second purpose of the invention: a kind of preparation method of filtering polypropylene-base spunlace non-woven material is provided.
Third purpose of the present invention: answering for described filtering polypropylene-base spunlace non-woven material and preparation method thereof is provided
With.
For achieving the above object, the invention discloses following technical proposals:
Firstly, the present invention discloses a kind of filtering polypropylene-base spunlace non-woven material, by mass percentage, raw material
Composition includes following component: polypropylene fibre 50-70%；One of acrylic fiber, polyester fiber and nylon fibre or its group
Close 30-50%.
Secondly, the present invention discloses the preparation method of the filtering polypropylene-base spunlace non-woven material, including walk as follows
It is rapid:
(1) it is combed into uniform fiber net after mixing raw material in proportion, laying from level to level, laying then are carried out to web
Change the orientation in length and breadth of fiber in real time in the process, longitudinal drawing-off is carried out to the web after lapping after the completion, obtains stratiform
Web；
(2) will at least two layers step (1) Fiber Laminated net overlap after carry out spun lacing reinforcing, dried after the completion, i.e.,
.
Compared with prior art, the present invention achieve it is following the utility model has the advantages that
(1) present invention selects polypropylene fibre as base stock, and polypropylene fibre raw material itself has light specific gravity, intensity
High, the advantages that elasticity is good, corrosion-resistant, and at the same time having certain antibacterial bacteriostatic characteristic.Filtering material itself needs preferably
Tension strength has certain resilience, and wants the features such as corrosion-resistant, antimicrobial, and polypropylene fibre is substantially former as this material
Expect and process is Physical Processing not feed change self character, meets filtration characteristics of materials requirement.
(2) present invention uses spunlace non-woven processing technology, and spun lacing method non-woven material processing technology is a kind of no environment
The pure Physical Processing method of pollution, flexibility tangle, do not influence fiber primary characteristic, do not damage fiber, in high-pressure hydraulic effect
It can be preferably formed under tangling with three-dimensional structure eyelet, tiny, uniform, the characteristics such as density is high non-woven materials, the characteristic
Good filtration can be played for filtering material.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the present invention.Unless another
It indicates, all technical and scientific terms used herein has usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.Such as, used herein, unless the context clearly indicates otherwise, otherwise singular shape
Formula is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As previously mentioned, at present spunlace non-woven material in filtration art (gas filtration, liquid filtering) using non-
It is often narrow, it is primarily limited to processing difficulties on spun lacing production line of the selection and material of material, not easily molded and material
Performance is unable to satisfy higher the problems such as requiring.For this purpose, the present invention provides a kind of filtering polypropylene-base spunlace non-woven material
And preparation method thereof.
In some typical embodiments, the length of the polypropylene fibre is 20-50mm, fiber number 2.0-3.0D.
In some typical embodiments, the acrylic fiber, polyester fiber, nylon fibre length be 30-50mm, it is fine
Degree is 1.5-2.5D.The hygroscopicity of acrylic fiber and polyester fiber is very poor, and dyes difficulty, and fabric is quick-drying washable, conformality
Good, this feature allows polyester fiber for avoiding being polluted by liquid/gas well when filtering material, leads to corpus fibrosum
Because of water suction, it is colored etc. and finds destruction.And nylon fibre has excellent wearability and chemical stability, and elasticity is good, it is resistance to
Fatigue rupture when These characteristics make nylon fibre be used in entire non-woven material, can make non-woven material have good
Good resilience, this can be resisted during the filtration process by filtering body bring impact force, and in impact force and elastic comprehensive
Cooperation forms a degree of concave surface with lower non-woven material, avoids being contacted and being caused firmly between filtering body and non-woven material
The problems such as noise is big, and non-woven material is easily damaged；In addition, the good endurance destructiveness of nylon fibre also contributes to making non-knit
Producing material material can adapt to above-mentioned impact force for a long time.
In some typical embodiments, in step (1), the uniform fiber net the preparation method comprises the following steps: by feedstock transportation
Into opening apparatus, it is delivered to two carding machines after evenly mixing；It optionally, can will be each in two carding machines in subsequent process
It is overlapped from the Fiber Laminated net of preparation；Then spun lacing reinforcing is carried out.
In some typical embodiments, in step (1), the method for the laying are as follows: through cross lapping machine to web
Carry out laying；Optionally, the lapping number of plies is 2-6 layers.
In some typical embodiments, in step (1), the method for the drawing-off are as follows: through drafting machine to the fibre after lapping
Dimension net carries out longitudinal drawing-off, optionally, 2.0-3.0 times of degree of draft range；It realizes fiber mixed and disorderly, it is vertically and horizontally strong to reduce web
Power difference adjusts the quality of web unit area, improves the fibre web uniformity.
In some typical embodiments, in step (2), the technique of the spun lacing reinforcing are as follows: by the stratiform overlapped fibre
Dimension net is sent into spun-laced machine, and spun lacing process mainly includes three rotary screen rollers, shares 6 water jets, and each roller is furnished with 2 spun lacings
Head, web is realized that high pressure water needle front and back sides puncture through 6 spun lacings and is reinforced, and forms the screen cloth with good entanglement effect.
Further, it is 30-45bar, second water jet that the 6 water jet pressure, which is respectively as follows: first of water jet,
For 40-60bar, third road water jet is 50-70bar, and the 4th water jet is 60-80bar, and the 5th water jet is 70-
90bar, the 6th water jet are 80-100bar.
In some typical embodiments, in step (2), the method for the drying are as follows: use hot-air through type drying side
Formula, drying temperature are 70-100 DEG C.
In some typical embodiments, the preparation method further includes to the filtering obtained after drying polypropylene-base water
The process that spraying non-woven material is wound.
In some typical embodiments, the filtering is with polypropylene-base spunlace non-woven material and preparation method thereof in ring
Application in the field of border, such as sewage, the filtering of exhaust gas liquid, gas filtration.
The present invention is further illustrated now in conjunction with specific embodiment.
Embodiment 1
A kind of filtering preparation method of polypropylene-base spunlace non-woven material, includes the following steps:
(1) raw material preparation: selecting polypropylene fibre and acrylic fiber, and polypropylene fibre average length is 40mm, and fiber number is
2.5D, acrylic fiber average length are 38mm, fiber number 1.6D.Initially quantitatively it is predefined as 60g/m2, the quality of polypropylene fibre
Percentage composition is 70%, and the mass percentage of acrylic fiber is 30%.Preset weight raw material, which is weighed, through weighing machine enters shredding
Equipment is delivered to two carding machines after evenly mixing.
(2) shredding combs: fiber is combed into uniform fiber net by the first carding machine, is carried out through cross lapping machine to web
Laying, the lapping number of plies are 4 layers, change the orientation in length and breadth of fiber.Then the web after lapping is indulged through drafting machine
To drawing-off, degree of draft is 2.2 times, realizes fiber mixed and disorderly, reduces web vertically and horizontally strength difference, adjusts web unit plane
Long-pending quality improves the fibre web uniformity.Then the fiber that will be delivered to by the second carding machine is formed after carding machine combs
Even web, it is then compound overlapping with web of the First carding machine after lapping drawing-off, enter spun-laced machine together and carries out water
Thorn is reinforced；Wherein the main cylinder speed of First carding machine is 1050m/min, and work roller speed is 85m/min, strips roller speed
For 190m/min, upper doffer speed is 50m/min, and lower doffer speed is 52m/min；Drafting machine networking drawing-off is 120%, is obtained
This web wire side it is uniform；The main cylinder speed of second carding machine is 850m/min, and work roller speed is 70m/min, stripping
Taking roller speed is 160m/min, and upper doffer speed is 35m/min, and lower doffer speed is 36m/min；Total speed of service is 35m/
min。
(3) spun lacing is reinforced: the web completed through two carding machines being entered spun-laced machine, spun lacing process mainly includes three
Rotary screen roller shares 6 water jets, and each roller is furnished with 2 water jets, and web realizes that high pressure water needle is positive and negative through 6 spun lacings
Face, which punctures, to be reinforced, and the screen cloth with good entanglement effect is formed；The 6 water jet pressure is respectively as follows: first of water jet
Pressure is 33bar, and the pressure of second water jet is 46bar, and the pressure of third road water jet is 60bar, the 4th water jet
Pressure be 75bar, the pressure of the 5th water jet is 80bar, and the pressure of the 6th water jet is 90bar；
(4) dry: cotton net enters dryer after spun lacing is reinforced, using hot-air through type drying mode, drying temperature 80
℃；
(5) it winds: entering rolling step after drying, by cutting, packaging, storage.
Embodiment 2
A kind of filtering preparation method of polypropylene-base spunlace non-woven material, includes the following steps:
(1) raw material preparation: selecting polypropylene fibre and polyester fiber, and polypropylene fibre average length is 40mm, and fiber number is
2.5D, polyester fiber average length are 38mm, fiber number 1.5D.Initially quantitatively it is predefined as 100g/m2, the quality of polypropylene fibre
Percentage composition is 70%, and the mass percentage of polyester fiber is 30%.Preset weight raw material, which is weighed, through weighing machine enters shredding
Equipment is delivered to two carding machines after evenly mixing；
(2) shredding combs: fiber is combed into uniform fiber net by the first carding machine, is carried out through cross lapping machine to web
Laying, the lapping number of plies are 6 layers, change the orientation in length and breadth of fiber.Then the web after lapping is indulged through drafting machine
To drawing-off, degree of draft is 2.4 times, realizes fiber mixed and disorderly, reduces web vertically and horizontally strength difference, adjusts web unit plane
Long-pending quality improves the fibre web uniformity.Then the fiber that will be delivered to by the second carding machine is formed after carding machine combs
Even web, it is then compound overlapping with web of the First carding machine after lapping drawing-off, enter spun-laced machine together and carries out water
Thorn is reinforced；Wherein the main cylinder speed of First carding machine is 1100m/min, and work roller speed is 95m/min, strips roller speed
For 200m/min, upper doffer speed is 50m/min, and lower doffer speed is 51m/min；Drafting machine networking drawing-off is 130%, is obtained
This web wire side it is uniform；The main cylinder speed of second carding machine is 900m/min, and work roller speed is 70m/min, stripping
Taking roller speed is 160m/min, and upper doffer speed is 30m/min, and lower doffer speed is 30m/min；Total speed of service is 28m/
min。
(3) spun lacing is reinforced: the web completed through two carding machines being entered spun-laced machine, spun lacing process mainly includes three
Rotary screen roller shares 6 water jets, and each roller is furnished with 2 water jets, and web realizes that high pressure water needle is positive and negative through 6 spun lacings
Face, which punctures, to be reinforced, and the screen cloth with good entanglement effect is formed；The 6 water jet pressure is respectively as follows: first of water jet
Pressure is 35bar, and the pressure of second water jet is 50bar, and the pressure of third road water jet is 63bar, the 4th water jet
Pressure be 78bar, the pressure of the 5th water jet is 85bar, and the pressure of the 6th water jet is 98bar；
(4) dry: cotton net enters dryer after spun lacing is reinforced, using hot-air through type drying mode, drying temperature 90
℃；
(5) it winds: entering rolling step after drying, by cutting, packaging, storage.
Embodiment 2
A kind of filtering preparation method of polypropylene-base spunlace non-woven material, includes the following steps:
(1) raw material preparation: selecting polypropylene fibre and polyester fiber, and polypropylene fibre average length is 40mm, and fiber number is
2.5D, polyester fiber average length are 38mm, fiber number 1.5D.Initially quantitatively it is predefined as 100g/m2, the quality of polypropylene fibre
Percentage composition is 70%, and the mass percentage of polyester fiber is 30%.Preset weight raw material, which is weighed, through weighing machine enters shredding
Equipment is delivered to two carding machines after evenly mixing；
(2) shredding combs: fiber is combed into uniform fiber net by the first carding machine, is carried out through cross lapping machine to web
Laying, the lapping number of plies are 6 layers, change the orientation in length and breadth of fiber.Then the web after lapping is indulged through drafting machine
To drawing-off, degree of draft is 2.4 times, realizes fiber mixed and disorderly, reduces web vertically and horizontally strength difference, adjusts web unit plane
Long-pending quality improves the fibre web uniformity.Then the fiber that will be delivered to by the second carding machine is formed after carding machine combs
Even web, it is then compound overlapping with web of the First carding machine after lapping drawing-off, enter spun-laced machine together and carries out water
Thorn is reinforced；Wherein the main cylinder speed of First carding machine is 1100m/min, and work roller speed is 95m/min, strips roller speed
For 200m/min, upper doffer speed is 50m/min, and lower doffer speed is 51m/min；Drafting machine networking drawing-off is 130%, is obtained
This web wire side it is uniform；The main cylinder speed of second carding machine is 900m/min, and work roller speed is 70m/min, stripping
Taking roller speed is 160m/min, and upper doffer speed is 30m/min, and lower doffer speed is 30m/min；Total speed of service is 28m/
min。
(3) spun lacing is reinforced: the web completed through two carding machines being entered spun-laced machine, spun lacing process mainly includes three
Rotary screen roller shares 6 water jets, and each roller is furnished with 2 water jets, and web realizes that high pressure water needle is positive and negative through 6 spun lacings
Face, which punctures, to be reinforced, and the screen cloth with good entanglement effect is formed；The 6 water jet pressure is respectively as follows: first of water jet
Pressure is 35bar, and the pressure of second water jet is 50bar, and the pressure of third road water jet is 63bar, the 4th water jet
Pressure be 78bar, the pressure of the 5th water jet is 85bar, and the pressure of the 6th water jet is 98bar；
(4) dry: cotton net enters dryer after spun lacing is reinforced, using hot-air through type drying mode, drying temperature 90
℃；
(5) it winds: entering rolling step after drying, by cutting, packaging, storage.
Embodiment 3
A kind of filtering preparation method of polypropylene-base spunlace non-woven material, includes the following steps:
(1) raw material preparation: selecting polypropylene fibre and polyester fiber, and polypropylene fibre average length is 50mm, and fiber number is
3.0D, polyester fiber average length are 50mm, fiber number 2.5D.Initially quantitatively it is predefined as 100g/m2, the quality of polypropylene fibre
Percentage composition is 50%, and the mass percentage of polyester fiber is 50%.Preset weight raw material, which is weighed, through weighing machine enters shredding
Equipment is delivered to two carding machines after evenly mixing；
(2) shredding combs: fiber is combed into uniform fiber net by the first carding machine, is carried out through cross lapping machine to web
Laying, the lapping number of plies are 2 layers, change the orientation in length and breadth of fiber.Then the web after lapping is indulged through drafting machine
To drawing-off, degree of draft is 2.0 times, realizes fiber mixed and disorderly, reduces web vertically and horizontally strength difference, adjusts web unit plane
Long-pending quality improves the fibre web uniformity.Then the fiber that will be delivered to by the second carding machine is formed after carding machine combs
Even web, it is then compound overlapping with web of the First carding machine after lapping drawing-off, enter spun-laced machine together and carries out water
Thorn is reinforced；Wherein the main cylinder speed of First carding machine is 1100m/min, and work roller speed is 95m/min, strips roller speed
For 200m/min, upper doffer speed is 50m/min, and lower doffer speed is 51m/min；Drafting machine networking drawing-off is 130%, is obtained
This web wire side it is uniform；The main cylinder speed of second carding machine is 900m/min, and work roller speed is 70m/min, stripping
Taking roller speed is 160m/min, and upper doffer speed is 30m/min, and lower doffer speed is 30m/min；Total speed of service is 28m/
min。
(3) spun lacing is reinforced: the web completed through two carding machines being entered spun-laced machine, spun lacing process mainly includes three
Rotary screen roller shares 6 water jets, and each roller is furnished with 2 water jets, and web realizes that high pressure water needle is positive and negative through 6 spun lacings
Face, which punctures, to be reinforced, and the screen cloth with good entanglement effect is formed；The 6 water jet pressure is respectively as follows: first of water jet
Pressure is 30bar, and the pressure of second water jet is 40bar, and the pressure of third road water jet is 65bar, the 4th water jet
Pressure be 75bar, the pressure of the 5th water jet is 90bar, and the pressure of the 6th water jet is 100bar；
(4) dry: cotton net enters dryer after spun lacing is reinforced, using hot-air through type drying mode, drying temperature 70
℃；
(5) it winds: entering rolling step after drying, by cutting, packaging, storage.
Embodiment 4
A kind of filtering preparation method of polypropylene-base spunlace non-woven material, includes the following steps:
(1) raw material preparation: selecting polypropylene fibre and polyester fiber, and polypropylene fibre average length is 20mm, and fiber number is
2.0D, polyester fiber average length are 30mm, fiber number 1.5D.Initially quantitatively it is predefined as 90g/m2, the quality of polypropylene fibre
Percentage composition is 60%, and the mass percentage of polyester fiber is 40%.Preset weight raw material, which is weighed, through weighing machine enters shredding
Equipment is delivered to two carding machines after evenly mixing；
(2) shredding combs: fiber is combed into uniform fiber net by the first carding machine, is carried out through cross lapping machine to web
Laying, the lapping number of plies are 5 layers, change the orientation in length and breadth of fiber.Then the web after lapping is indulged through drafting machine
To drawing-off, degree of draft is 3.0 times, realizes fiber mixed and disorderly, reduces web vertically and horizontally strength difference, adjusts web unit plane
Long-pending quality improves the fibre web uniformity.Then the fiber that will be delivered to by the second carding machine is formed after carding machine combs
Even web, it is then compound overlapping with web of the First carding machine after lapping drawing-off, enter spun-laced machine together and carries out water
Thorn is reinforced；Wherein the main cylinder speed of First carding machine is 1100m/min, and work roller speed is 95m/min, strips roller speed
For 200m/min, upper doffer speed is 50m/min, and lower doffer speed is 51m/min；Drafting machine networking drawing-off is 130%, is obtained
This web wire side it is uniform；The main cylinder speed of second carding machine is 900m/min, and work roller speed is 70m/min, stripping
Taking roller speed is 160m/min, and upper doffer speed is 30m/min, and lower doffer speed is 30m/min；Total speed of service is 28m/
min。
(3) spun lacing is reinforced: the web completed through two carding machines being entered spun-laced machine, spun lacing process mainly includes three
Rotary screen roller shares 6 water jets, and each roller is furnished with 2 water jets, and web realizes that high pressure water needle is positive and negative through 6 spun lacings
Face, which punctures, to be reinforced, and the screen cloth with good entanglement effect is formed；The 6 water jet pressure is respectively as follows: first of water jet
Pressure is 45bar, and the pressure of second water jet is 50bar, and the pressure of third road water jet is 50bar, the 4th water jet
Pressure be 60bar, the pressure of the 5th water jet is 70bar, and the pressure of the 6th water jet is 95bar；
(4) dry: cotton net enters dryer after spun lacing is reinforced, using hot-air through type drying mode, drying temperature 100
℃；
(5) it winds: entering rolling step after drying, by cutting, packaging, storage.
Embodiment 5
A kind of filtering preparation method of polypropylene-base spunlace non-woven material, includes the following steps:
(1) raw material preparation: selecting polypropylene fibre, polyester fiber, nylon fibre, and polypropylene fibre average length is
30mm, fiber number 2.5D, polyester fiber average length are 35mm, and fiber number 2.0D, nylon fibre average length is 40mm, fiber number
For 2.5D.Initially quantitatively it is predefined as 110g/m2, the mass percentage of polypropylene fibre is 60%, the quality hundred of polyester fiber
Dividing content is 20%, and the mass percentage of nylon fibre is 20%.Preset weight raw material is weighed through weighing machine enter shredding set
It is standby, it is delivered to two carding machines after evenly mixing；
(2) shredding combs: fiber is combed into uniform fiber net by the first carding machine, is carried out through cross lapping machine to web
Laying, the lapping number of plies are 3 layers, change the orientation in length and breadth of fiber.Then the web after lapping is indulged through drafting machine
To drawing-off, degree of draft is 2.8 times, realizes fiber mixed and disorderly, reduces web vertically and horizontally strength difference, adjusts web unit plane
Long-pending quality improves the fibre web uniformity.Then the fiber that will be delivered to by the second carding machine is formed after carding machine combs
Even web, it is then compound overlapping with web of the First carding machine after lapping drawing-off, enter spun-laced machine together and carries out water
Thorn is reinforced；Wherein the main cylinder speed of First carding machine is 1100m/min, and work roller speed is 95m/min, strips roller speed
For 200m/min, upper doffer speed is 50m/min, and lower doffer speed is 51m/min；Drafting machine networking drawing-off is 130%, is obtained
This web wire side it is uniform；The main cylinder speed of second carding machine is 900m/min, and work roller speed is 70m/min, stripping
Taking roller speed is 160m/min, and upper doffer speed is 30m/min, and lower doffer speed is 30m/min；Total speed of service is 28m/
min。
(3) spun lacing is reinforced: the web completed through two carding machines being entered spun-laced machine, spun lacing process mainly includes three
Rotary screen roller shares 6 water jets, and each roller is furnished with 2 water jets, and web realizes that high pressure water needle is positive and negative through 6 spun lacings
Face, which punctures, to be reinforced, and the screen cloth with good entanglement effect is formed；The 6 water jet pressure is respectively as follows: first of water jet
Pressure is 40bar, and the pressure of second water jet is 60bar, and the pressure of third road water jet is 70bar, the 4th water jet
Pressure be 80bar, the pressure of the 5th water jet is 80bar, and the pressure of the 6th water jet is 80bar；
(4) dry: cotton net enters dryer after spun lacing is reinforced, using hot-air through type drying mode, drying temperature 90
℃；
(5) it winds: entering rolling step after drying, by cutting, packaging, storage.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of filtering polypropylene-base spunlace non-woven material, which is characterized in that by mass percentage, raw material composition packet
Include following component: polypropylene fibre 50-70%；One of acrylic fiber, polyester fiber and nylon fibre or combinations thereof 30-
50%.
2. filtering polypropylene-base spunlace non-woven material as described in claim 1, which is characterized in that the polypropylene fibre
Length be 20-50mm, fiber number 2.0-3.0D.
3. filtering polypropylene-base spunlace non-woven material as described in claim 1, which is characterized in that the acrylic fiber,
Polyester fiber, nylon fibre length be 30-50mm, fiber number 1.5-2.5D.
4. the preparation method that polypropylene-base spunlace non-woven material is used in any one of the claim 1-3 filtering, which is characterized in that
Include the following steps:
(1) it is combed into uniform fiber net after mixing raw material in proportion, laying from level to level, lay-up process then are carried out to web
In change the orientation in length and breadth of fiber in real time, longitudinal drawing-off is carried out to the web after lapping after the completion, obtains Fiber Laminated
Net；
(2) will at least two layers step (1) Fiber Laminated net overlap after carry out spun lacing reinforcing, dried after the completion to get.
5. the filtering preparation method of polypropylene-base spunlace non-woven material described in claim 1, which is characterized in that step (1)
In, the uniform fiber net the preparation method comprises the following steps: by feedstock transportation into opening apparatus, be delivered to two combs after evenly mixing
Reason machine；Optionally, the Fiber Laminated net respectively prepared in two carding machines can be overlapped in subsequent process；Then spun lacing is carried out to add
Gu.
6. the filtering preparation method of polypropylene-base spunlace non-woven material described in claim 1, which is characterized in that step (1)
In, the method for the laying are as follows: laying is carried out to web through cross lapping machine；Optionally, the lapping number of plies is 2-6 layers.
7. the filtering preparation method of polypropylene-base spunlace non-woven material described in claim 1, which is characterized in that step (1)
In, the method for the drawing-off are as follows: longitudinal drawing-off, optionally, degree of draft range are carried out to the web after lapping through drafting machine
2.0-3.0 again；It realizes fiber mixed and disorderly, reduces web vertically and horizontally strength difference, adjust the quality of web unit area, change
The kind fibre web uniformity.
8. the preparation method that polypropylene-base spunlace non-woven material is used in any one of the claim 5-7 filtering, which is characterized in that
In step (2), the technique of the spun lacing reinforcing are as follows: the Fiber Laminated net overlapped is sent into spun-laced machine, spun lacing process is mainly wrapped
Three rotary screen rollers are included, 6 water jets are shared, each roller is furnished with 2 water jets, and web realizes high pressure water through 6 spun lacings
Needle front and back sides, which puncture, to be reinforced, and the screen cloth with good entanglement effect is formed.
9. the filtering preparation method of polypropylene-base spunlace non-woven material described in claim 8, which is characterized in that described 6
It is 30-45bar that water jet pressure, which is respectively as follows: first of water jet, and second water jet is 40-60bar, and third road water jet is
50-70bar, the 4th water jet are 60-80bar, and the 5th water jet is 70-90bar, and the 6th water jet is 80-
100bar；
Preferably, in step (2), the method for the drying are as follows: use hot-air through type drying mode, drying temperature 70-100
℃；
Preferably, the preparation method further includes being rolled up to the filtering obtained after drying with polypropylene-base spunlace non-woven material
Around process.
10. filtering polypropylene-base spunlace non-woven material according to any one of claims 1-4 and/or such as claim 5-
Application of the 9 described in any item preparation methods in environmental area, such as liquid filtering, gas filtration.
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| CN111035994A (en) * | 2019-12-23 | 2020-04-21 | 东营俊富净化科技有限公司 | Preparation method of low-resistance filter material |
| CN111602879A (en) * | 2020-04-15 | 2020-09-01 | 浙江本源水刺布有限公司 | Mask |
| WO2023114921A1 (en) * | 2021-12-17 | 2023-06-22 | Ascend Performance Materials Operations Llc | Bicomponent fabrics |
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