CN112442793A - Production method of non-roll-point non-woven fabric material replacing breathable film material - Google Patents

Production method of non-roll-point non-woven fabric material replacing breathable film material Download PDF

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Publication number
CN112442793A
CN112442793A CN202011374654.2A CN202011374654A CN112442793A CN 112442793 A CN112442793 A CN 112442793A CN 202011374654 A CN202011374654 A CN 202011374654A CN 112442793 A CN112442793 A CN 112442793A
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Prior art keywords
woven fabric
fibers
web
air
hot melt
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CN202011374654.2A
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Chinese (zh)
Inventor
王玉梅
马德勋
吴亮亮
张志毅
鲍汉鑫
李凡成
邓林林
徐延梅
蒋乃文
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Shandong Hengpeng Hygienic Products Co ltd
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Shandong Hengpeng Hygienic Products Co ltd
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Priority to CN202011374654.2A priority Critical patent/CN112442793A/en
Publication of CN112442793A publication Critical patent/CN112442793A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/544—Olefin series
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing

Abstract

The invention discloses a production method of a non-woven fabric material without a rolling point for replacing a breathable film material, and belongs to the field of SMS smooth roll non-woven fabrics. A production method of a non-roll-point non-woven fabric material for replacing a breathable film material adopts the following steps: s1, adding the polypropylene raw material and the melt-blown raw material into a hopper; s2, extruding and melting the mixed raw materials which are well mixed and stirred to a screw through a feeding system to obtain a hot melt; s3, filtering, metering and dispensing the hot melt; s4, spinning, and cooling the spun yarn by side cold air to obtain a nascent filament yarn; s5, drawing the as-spun yarns to obtain fibers; s6, dividing and lapping the fibers to form a fiber web; s7, obtaining the non-woven fabric after the fiber web is subjected to hot rolling; s8, winding and slitting the obtained non-woven fabric; the non-woven fabric material produced by the invention can replace a breathable film material to be applied to disposable sanitary products such as paper diapers, sanitary towels and the like, and has better air permeability and higher strength.

Description

Production method of non-roll-point non-woven fabric material replacing breathable film material
Technical Field
The invention relates to the technical field of SMS smooth roll non-woven fabrics, in particular to a production method of a non-rolling point non-woven fabric material for replacing a breathable film material.
Background
The non-woven fabric is a kind of cloth-like material produced by treating various kinds of fiber material with a needle-punching machine or a carding machine and forming or bonding the fiber material under high pressure.
At present, the usage of non-woven fabrics is more and more extensive, and the non-woven fabrics are widely used for basement membrane materials of disposable sanitary products such as paper diapers and sanitary towels, but the traditional non-woven fabrics in the prior art can not meet the requirements at present, in the disposable sanitary products in the prior art, although the air-permeable membrane materials can ensure that urine, blood and the like do not leak, the air permeability is relatively poor, particularly in hot seasons such as summer and the like, the air permeability is particularly prominent, the strength of the air permeable membrane is low, and the use is very inconvenient.
Disclosure of Invention
The invention aims to solve the problems of poor air permeability and strength in the prior art, and provides a production method of a non-roll-point non-woven fabric material for replacing a breathable film material.
In order to achieve the purpose, the invention adopts the following technical scheme:
a production method of a non-roll-point non-woven fabric material for replacing a breathable film material adopts the following steps:
s1, adding the polypropylene raw material and the melt-blown raw material into a hopper, and mixing and stirring to form a mixed raw material;
s2, extruding and melting the mixed raw materials which are well mixed and stirred to a screw through a feeding system to obtain a hot melt;
s3, filtering, metering and distributing the hot melt at a certain temperature and a certain pressure;
s4, spinning the hot melt which is distributed and metered, and cooling the spun yarn by side cold air to obtain as-spun filaments;
s5, drawing the as-spun yarns to obtain fibers;
s6, dividing and lapping the fibers to form a fiber web;
s7, obtaining the non-woven fabric after the fiber web is subjected to hot rolling;
and S8, winding and slitting the obtained non-woven fabric.
Preferably, the feeding system in step S2 adopts vacuum suction, and the melting temperature of the screw is 180-270 ℃.
Preferably, in step S3, the operation temperature for filtering, metering and distributing the hot melt is 230 to 250 ℃, and the pressure is 5 to 10 MPa.
Preferably, in step S4, the hot melt spinning with the dispensing metering is performed by ejecting filaments through a 0.3-0.8 mm aperture, and then cooling the filaments by a cooling wind box to obtain nascent filaments.
Preferably, the temperature of the cooling air box is 10-20 ℃, and the speed of the cooling air is 0.2-1.5 m/s.
Preferably, in step S5, the as-spun filaments are air-drawn through a horn mouth of a slit-type drawing machine by air-dividing the as-spun filaments, the air-drawing speed is 2000m/H to 5000m/H, fibers with a fineness of 1.8 to 2.2 denier are obtained, and molecular chains of the as-spun filaments after drawing are arranged in order to generate a strong force, thereby forming the fibers.
Preferably, in step S6, the fibers are randomly laid on a web forming curtain, and a suction fan is provided under the web forming curtain to perform downward suction to fix the fibers on the web forming curtain, and prepressing is performed by a prepressing roll to form a web.
Preferably, the fiber web passes through a net forming curtain, is conveyed to a hot rolling mill under the driving of a net curtain roller, and is subjected to the hot-pressing bonding action of an upper roller and a lower roller of the hot rolling mill to obtain the non-woven fabric.
Preferably, the temperature of the hot rolling mill is 80-120 ℃, the linear pressure is 30-70 MPa, and the non-woven fabric is transmitted to an after-finishing system through an upper winding roller and a lower winding roller.
Preferably, the upper roller and the lower roller both adopt smooth rollers.
Compared with the prior art, the invention provides a production method of a non-roll-point nonwoven material for replacing a breathable film material, which has the following beneficial effects:
1. the production method of the non-roll non-woven fabric material replacing the breathable membrane material comprises the steps of firstly adding a polypropylene raw material and a melt-blown raw material into a hopper, then sucking the mixed and stirred raw materials into a screw rod through a feeding system in a vacuum manner for extrusion melting, sucking in a vacuum environment, achieving a better effect, then filtering, metering and distributing, wherein the operation temperature is 230-250 ℃, the pressure is 5-10 MPa, the distributed and metered hot melt spinning is to spray filaments in a pore diameter of 0.3-0.8 mm, cooling the filaments through a cooling air box, the temperature of the cooling air box is 10-20 ℃, the cooling air speed is 0.2-1.5 m/s, the as-spun filaments are subjected to air flow splitting through a horn mouth of a slit type drafting device, the air flow drafting speed is 2000 m/H-5000 m/H, fibers with the fineness of 1.8-2.2 denier are obtained, and meanwhile, the molecular chains of the as-spun filaments are arranged in order, the method comprises the steps of generating strong force to form fibers, paving the fibers on a net forming curtain in a messy manner, arranging an exhaust fan below the net forming curtain to perform downward air suction, fixing the fibers on the net forming curtain, prepressing the fibers through a prepressing roller to form a fiber web, passing the fiber web through the net forming curtain, conveying the fiber web to a hot rolling mill under the driving of a net curtain roller, obtaining non-woven fabric through the hot pressing and bonding action of an upper roller and a lower roller of the hot rolling mill, wherein the temperature of the hot rolling mill is 80-120 ℃, the linear pressure is 30-70 MPa, the non-woven fabric is conveyed to a post-finishing system through the upper winding roller and the lower winding roller, and finally rolling and slitting are performed.
The non-related parts in the device are the same as or can be realized by the prior art, the non-woven fabric material produced by the invention can replace the bottom film material of disposable sanitary products such as paper diapers and sanitary towels, and generally, the bottom film sanitary towels adopt a breathable film material, and the paper diaper pull-ups adopt the breathable film and soft non-woven fabric composite, so that the breathability is better, and the strength is higher.
Detailed Description
It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like are used in the description of the present invention and are intended only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be taken as limiting the present invention.
Example 1:
a production method of a non-roll-point non-woven fabric material for replacing a breathable film material adopts the following steps:
s1, adding the polypropylene raw material and the melt-blown raw material into a hopper, and mixing and stirring to form a mixed raw material;
s2, extruding and melting the mixed raw materials which are well mixed and stirred to a screw through a feeding system to obtain a hot melt;
s3, filtering, metering and distributing the hot melt at a certain temperature and under a certain pressure;
s4, spinning the hot melt which is distributed and metered, and cooling the spun yarn by side cold air to obtain as-spun filaments;
s5, drafting the as-spun filaments to obtain fibers;
s6, dividing and lapping the fibers to form a fiber web;
s7, obtaining the non-woven fabric after the fiber web is subjected to hot rolling;
and S8, winding and slitting the obtained non-woven fabric.
The feed system in step S2 used vacuum suction with a screw melt temperature of 180 ℃.
In step S3, the hot melt is filtered, metered and dispensed at an operating temperature of 230 ℃ and a pressure of 5 MPa.
In step S4, the distributed and metered hot melt spinning is to spray filaments in the pore diameter of 0.3-0.8 mm, and then to obtain nascent filaments after cooling by a cooling air box.
The temperature of the cooling wind box was 10 ℃ and the cooling wind speed was 0.2 m/s.
In step S5, the as-spun filaments are subjected to air draft at an air draft speed of 2000m/H through a horn mouth of a slit draft device in an air flow splitting manner to obtain fibers of 1.8 denier, and molecular chains of the as-spun filaments after the draft are arranged in order to generate a strong force, thereby forming the fibers.
In step S6, the fibers are randomly laid on a web forming curtain, and an exhaust fan is provided below the web forming curtain to perform downward suction, so that the fibers are fixed on the web forming curtain and are pre-pressed by a pre-pressing roller to form a web.
And (3) conveying the fiber web to a hot rolling mill through a net curtain under the driving of a net curtain roller, and obtaining the non-woven fabric through the hot-pressing bonding effect of an upper roller and a lower roller of the hot rolling mill.
The temperature of the hot rolling mill is 80 ℃, the linear pressure is 30MPa, and the non-woven fabric is conveyed to an after-finishing system through an upper winding roller and a lower winding roller.
The upper roller and the lower roller both adopt smooth rollers.
In the invention, polypropylene raw materials and melt-blown raw materials are added into a hopper, then the mixed and stirred raw materials are pumped into a screw rod through a feeding system in vacuum for extrusion melting, the vacuum environment is pumped, the effect is better, then the filtration, metering and distribution are carried out, the operation temperature is 230 ℃, the pressure is 5MPa, the distributed and metered hot melt spinning is carried out by ejecting filaments in the pore diameter of 0.3-0.8 mm, the filaments are cooled by a cooling air box, the temperature of the cooling air box is 10 ℃, the cooling air speed is 0.2m/s, the as-spun filaments are subjected to air flow drafting at the horn mouth of a slit type drafting device in an air flow filament splitting mode, the air flow drafting speed is 2000m/H, fibers with the fineness of 1.8 denier are obtained, meanwhile, the molecular chains of the as-spun filaments are arranged orderly to generate strong force to form fibers, and the fibers are randomly laid on a web forming curtain, the method comprises the following steps of arranging an exhaust fan below a net forming curtain, carrying out downward air suction and suction, fixing fibers on the net forming curtain, carrying out prepressing through a prepressing roller to form a fiber web, conveying the fiber web to a hot rolling mill under the driving of a net curtain roller, carrying out hot-pressing bonding action of an upper roller and a lower roller of the hot rolling mill to obtain a non-woven fabric, wherein the temperature of the hot rolling mill is 80 ℃, the linear pressure of the non-woven fabric is 30MPa, the non-woven fabric is conveyed to a post-finishing system through the upper winding roller and the lower winding roller, and finally, the non-woven fabric is wound and cut.
Example 2:
a production method of a non-roll-point non-woven fabric material for replacing a breathable film material adopts the following steps:
s1, adding the polypropylene raw material and the melt-blown raw material into a hopper, and mixing and stirring to form a mixed raw material;
s2, extruding and melting the mixed raw materials which are well mixed and stirred to a screw through a feeding system to obtain a hot melt;
s3, filtering, metering and distributing the hot melt at a certain temperature and under a certain pressure;
s4, spinning the hot melt which is distributed and metered, and cooling the spun yarn by side cold air to obtain as-spun filaments;
s5, drafting the as-spun filaments to obtain fibers;
s6, dividing and lapping the fibers to form a fiber web;
s7, obtaining the non-woven fabric after the fiber web is subjected to hot rolling;
and S8, winding and slitting the obtained non-woven fabric.
The feed system in step S2 used vacuum suction with a screw melt temperature of 270 ℃.
In step S3, the hot melt is filtered, metered and dispensed at an operating temperature of 250 ℃ and a pressure of 10 MPa.
In step S4, the distributed and metered hot melt spinning is to spray filaments in the pore diameter of 0.3-0.8 mm, and then to obtain nascent filaments after cooling by a cooling air box.
The temperature of the cooling windbox was 20 ℃ and the cooling wind speed was 1.5 m/s.
In step S5, the as-spun filaments are subjected to air draft at an air draft speed of 5000m/H through a horn mouth of a slit type draft device in an air flow splitting manner to obtain fibers of 2.2 denier, and molecular chains of the as-spun filaments after the draft are arranged in order to generate a strong force, thereby forming the fibers.
In step S6, the fibers are randomly laid on a web forming curtain, and an exhaust fan is provided below the web forming curtain to perform downward suction, so that the fibers are fixed on the web forming curtain and are pre-pressed by a pre-pressing roller to form a web.
And (3) conveying the fiber web to a hot rolling mill through a net curtain under the driving of a net curtain roller, and obtaining the non-woven fabric through the hot-pressing bonding effect of an upper roller and a lower roller of the hot rolling mill.
The temperature of the hot rolling mill is 120 ℃, the linear pressure is 70MPa, and the non-woven fabric is conveyed to an after-finishing system through an upper winding roller and a lower winding roller.
The upper roller and the lower roller both adopt smooth rollers.
In the invention, polypropylene raw materials and melt-blown raw materials are added into a hopper, then the mixed and stirred raw materials are pumped into a screw rod through a feeding system in vacuum for extrusion melting, the vacuum environment is pumped, the effect is better, then the filtration, metering and distribution are carried out, the operation temperature is 250 ℃, the pressure is 10MPa, the distributed and metered hot melt spinning is carried out by ejecting filaments in the pore diameter of 0.3-0.8 mm, the filaments are cooled by a cooling air box, the temperature of the cooling air box is 20 ℃, the cooling air speed is 1.5m/s, the as-spun filaments are subjected to air flow drafting through a horn mouth of a slit type drafting device in an air flow filament splitting mode, the air flow drafting speed is 5000m/H, the fibers with the fineness of 2.2 denier are obtained, meanwhile, the molecular chains of the as-spun filaments subjected to the drafting are arranged orderly to generate strong force to form fibers, the fibers are randomly spread on a web forming curtain, the method comprises the following steps of arranging an exhaust fan below a net forming curtain, carrying out downward air suction, fixing fibers on the net forming curtain, carrying out prepressing through a prepressing roller to form a fiber web, conveying the fiber web to a hot rolling mill under the driving of a net curtain roller, carrying out hot-pressing bonding action of an upper roller and a lower roller of the hot rolling mill to obtain a non-woven fabric, wherein the temperature of the hot rolling mill is 120 ℃, the linear pressure of the non-woven fabric is 70MPa, the non-woven fabric is conveyed to a post-finishing system through the upper winding roller and the lower winding roller, and finally, the non-woven fabric is wound and cut.
Example 3:
a production method of a non-roll-point non-woven fabric material for replacing a breathable film material adopts the following steps:
s1, adding the polypropylene raw material and the melt-blown raw material into a hopper, and mixing and stirring to form a mixed raw material;
s2, extruding and melting the mixed raw materials which are well mixed and stirred to a screw through a feeding system to obtain a hot melt;
s3, filtering, metering and distributing the hot melt at a certain temperature and under a certain pressure;
s4, spinning the hot melt which is distributed and metered, and cooling the spun yarn by side cold air to obtain as-spun filaments;
s5, drafting the as-spun filaments to obtain fibers;
s6, dividing and lapping the fibers to form a fiber web;
s7, obtaining the non-woven fabric after the fiber web is subjected to hot rolling;
and S8, winding and slitting the obtained non-woven fabric.
The feed system in step S2 used vacuum suction with a screw melt temperature of 240 ℃.
In step S3, the hot melt is filtered, metered and dispensed at an operating temperature of 240 ℃ and a pressure of 8 MPa.
In step S4, the distributed and metered hot melt spinning is to spray filaments in the pore diameter of 0.3-0.8 mm, and then to obtain nascent filaments after cooling by a cooling air box.
The temperature of the cooling wind box was 15 ℃ and the cooling wind speed was 1 m/s.
In step S5, the as-spun filaments are subjected to air draft at an air draft speed of 3500m/H through a horn mouth of a slit draft device in a manner of air flow splitting to obtain fibers of 2 denier, and molecular chains of the as-spun filaments after the draft are arranged in order to generate a strong force, thereby forming the fibers.
In step S6, the fibers are randomly laid on a web forming curtain, and an exhaust fan is provided below the web forming curtain to perform downward suction, so that the fibers are fixed on the web forming curtain and are pre-pressed by a pre-pressing roller to form a web.
And (3) conveying the fiber web to a hot rolling mill through a net curtain under the driving of a net curtain roller, and obtaining the non-woven fabric through the hot-pressing bonding effect of an upper roller and a lower roller of the hot rolling mill.
The temperature of the hot mill was 100 ℃ and the linear pressure was 50MPa, and the nonwoven was transported to the finishing system by means of upper and lower winding rolls.
The upper roller and the lower roller both adopt smooth rollers.
In the invention, polypropylene raw materials and melt-blown raw materials are added into a hopper, then the mixed and stirred raw materials are pumped into a screw rod through a feeding system in vacuum for extrusion melting, the vacuum environment is pumped, the effect is better, then the filtration, metering and distribution are carried out, the operation temperature is 240 ℃, the pressure is 8MPa, the distributed and metered hot melt spinning is carried out by spraying filaments in the pore diameter of 0.3-0.8 mm, the filaments are cooled by a cooling air box, the temperature of the cooling air box is 15 ℃, the cooling air speed is 1m/s, the as-spun filaments are subjected to air flow drawing through a horn mouth of a slit type drawing machine in an air flow dividing mode, the air flow drawing speed is 3500m/H, fibers with the fineness of 2 denier are obtained, meanwhile, the as-spun filaments are orderly arranged and drawn through molecular chains to generate strong force to form fibers, and the fibers are randomly laid on a web forming curtain, the method comprises the following steps of arranging an exhaust fan below a net forming curtain, carrying out downward air suction and suction, fixing fibers on the net forming curtain, carrying out prepressing through a prepressing roller to form a fiber web, conveying the fiber web to a hot rolling mill under the driving of a net curtain roller, carrying out hot-pressing bonding action of an upper roller and a lower roller of the hot rolling mill to obtain the non-woven fabric, wherein the temperature of the hot rolling mill is 100 ℃, the linear pressure of the non-woven fabric is 50MPa, the non-woven fabric is conveyed to a post-finishing system through the upper winding roller and the lower winding roller, and finally, the non-woven fabric is wound and cut.
The product data of the nonwoven material obtained at 27g are given in the following table:
Figure DEST_PATH_IMAGE002
the product data of the nonwoven material obtained at 22g are given in the following table:
Figure DEST_PATH_IMAGE004
in conclusion, the non-woven fabric material produced by the invention can replace a breathable film material to be applied to disposable sanitary products such as paper diapers and sanitary towels, and has better air permeability and higher strength.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. A production method of a non-roll-point non-woven fabric material for replacing a breathable film material is characterized by comprising the following steps:
s1, adding the polypropylene raw material and the melt-blown raw material into a hopper, and mixing and stirring to form a mixed raw material;
s2, extruding and melting the mixed raw materials which are well mixed and stirred to a screw through a feeding system to obtain a hot melt;
s3, filtering, metering and distributing the hot melt at a certain temperature and a certain pressure;
s4, spinning the hot melt which is distributed and metered, and cooling the spun yarn by side cold air to obtain as-spun filaments;
s5, drawing the as-spun yarns to obtain fibers;
s6, dividing and lapping the fibers to form a fiber web;
s7, obtaining the non-woven fabric after the fiber web is subjected to hot rolling;
and S8, winding and slitting the obtained non-woven fabric.
2. The method for producing a non-woven material without a nip point instead of a breathable film material as claimed in claim 1, wherein the feeding system in the step S2 employs vacuum suction and the screw melting temperature is 180 ℃ to 270 ℃.
3. The method for producing a non-rolled nonwoven material as claimed in claim 1, wherein the hot melt is filtered, metered and distributed at 230-250 ℃ and 5-10 MPa in step S3.
4. The method for producing a non-woven material without a nip point as recited in claim 1, wherein in the step S4, the hot melt spun yarn is spun through a hole with a diameter of 0.3 to 0.8mm and then cooled by a cooling wind box to obtain a spun yarn.
5. The method for producing a non-rolled nonwoven fabric material as claimed in claim 4, wherein the temperature of the cooling wind box is 10 to 20 ℃ and the speed of the cooling wind is 0.2 to 1.5 m/s.
6. The method of claim 1, wherein in step S5, the as-spun filaments are air-drawn through a horn of a slit-type drawing machine by air-jet separation to obtain fibers with a fineness of 1.8 to 2.2 denier, and the as-spun filaments are aligned to generate a strong force to form fibers, wherein the air-jet drawing speed is 2000m/H to 5000 m/H.
7. The method of claim 1, wherein the fibers are randomly laid on a web forming curtain, and a suction fan is provided under the web forming curtain to suck air downward to fix the fibers on the web forming curtain, and the web is pre-pressed by a pre-pressing roller to form a web.
8. The method for producing a non-roll non-woven fabric material instead of an air-permeable film material according to claim 1, wherein the non-woven fabric is obtained by passing the web through a web forming screen, conveying the web to a hot rolling mill under the driving of a screen roller, and performing the hot-press bonding of an upper roller and a lower roller of the hot rolling mill.
9. The method for producing a non-rolled nonwoven material replacing an air permeable film material according to claim 8, wherein the temperature of the hot rolling mill is 80 to 120 ℃, the linear pressure is 30 to 70MPa, and the nonwoven fabric is transported to the finishing system through the upper winding roll and the lower winding roll.
10. The method of claim 8, wherein the upper and lower nip rolls are smooth rolls.
CN202011374654.2A 2020-12-01 2020-12-01 Production method of non-roll-point non-woven fabric material replacing breathable film material Pending CN112442793A (en)

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CN102776710A (en) * 2012-05-24 2012-11-14 温州博益机械有限公司 Nylon spun-bonded filament non-woven fabric and preparation method thereof
CN106512558A (en) * 2016-12-02 2017-03-22 德施普科技发展温州有限公司 Efficient filter material and preparation method thereof
CN109183281A (en) * 2018-10-22 2019-01-11 山东恒鹏卫生用品有限公司 A kind of PE spun-bonded non-woven fabrics and its manufacturing method
CN110644245A (en) * 2019-09-12 2020-01-03 山东恒鹏卫生用品有限公司 Release non-woven fabric

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