CN112048827B - Melt-blown short fiber spinning method and non-woven fabric filter material product prepared by same - Google Patents
Melt-blown short fiber spinning method and non-woven fabric filter material product prepared by same Download PDFInfo
- Publication number
- CN112048827B CN112048827B CN202010956551.0A CN202010956551A CN112048827B CN 112048827 B CN112048827 B CN 112048827B CN 202010956551 A CN202010956551 A CN 202010956551A CN 112048827 B CN112048827 B CN 112048827B
- Authority
- CN
- China
- Prior art keywords
- melting
- temperature
- zone
- melt
- polyester resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- D04H1/56—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 in association with fibre formation, e.g. immediately following extrusion of staple 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
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- 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
- D04H1/55—Polyesters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a melt-blown polyester staple fiber spinning method and a non-woven fabric filter material product prepared by the method, wherein the preparation method comprises the following steps: preparing or purchasing high-melting point and low-melting point polyester resins, mixing the high-melting point polyester resin and the low-melting point polyester resin according to the proportion of 1 (5-10), adding the mixed resins into a screw extruder for extrusion granulation, and preparing granules comprising a dispersed phase formed by the high-melting point polyester resin and a continuous phase formed by the low-melting point resin; when the produced resin granules are added into melt-blown short fiber spinning equipment, the resin granules enter a die head after being heated in a heating zone of the spinning equipment, the temperature of the heating zone is not higher than the melting temperature of the high-melting-point polyester resin, the molten polyester material is mixed with aluminum hydroxide introduced into the die head, the aluminum hydroxide is decomposed by heat absorption, the molten resin material is cooled, and the molten resin material is heated to be locally cooled and crystallized to form a fiber flow.
Description
Technical Field
The invention relates to the field of fiber non-woven fabrics.
Background
Polyester fibers, commonly known as "dacron". The PET fiber is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dihydric alcohol, is called PET fiber for short, and belongs to a high molecular compound. Invented in 1941, is the first major variety of current synthetic fibers.
Nonwoven fabrics are fabrics formed in nonwoven form and have wide applications in automobile interiors, filter materials, and the like. The non-woven fabric is a fabric formed without spinning woven fabric, and is formed by only forming a fiber web structure by directionally or randomly arranging textile short fibers or filaments and then reinforcing the fiber web structure by adopting a mechanical method, a thermal bonding method or a chemical method. The non-woven fabric breaks through the traditional spinning principle and has the characteristics of short process flow, high production rate, high yield, low cost, wide application, multiple raw material sources and the like. The conventional polyester fiber is usually reinforced by an inorganic material, but the inorganic material and the polyester have poor bonding performance, are easy to aggregate in the polyester and have poor dispersing performance.
Disclosure of Invention
The invention aims to: a melt-blown polyester staple fiber spinning method comprises the following steps:
step one, preparing or purchasing high-melting-point and low-melting-point polyester resins, mixing the high-melting-point polyester resin and the low-melting-point polyester resin according to the proportion of 1 (5-10), adding the mixed resin into a screw extruder for extrusion granulation, wherein the highest temperature of a heating zone of the extruder is not higher than the melting temperature of the high-melting-point polyester resin and not lower than the melting temperature of the low-melting-point polyester resin, and the prepared granules comprise a dispersed phase formed by the high-melting-point polyester resin and a continuous phase formed by the low-melting-point polyester resin;
secondly, when the manufactured resin granules are added into melt-blown short fiber spinning equipment, the resin granules enter a die head after being heated in a heating zone of the spinning equipment, the temperature of the heating zone is not higher than the melting temperature of the high-melting-point polyester resin, the molten polyester material is mixed with aluminum hydroxide introduced into the die head, the aluminum hydroxide is decomposed in an endothermic way, the molten resin material is cooled, and the molten resin material is heated to be locally cooled and crystallized to form a fiber flow;
step three, the fiber flow spraying die head is drawn and cooled by inert gas flow with the airflow direction vertical to the fiber flow direction, and the nascent short fiber is sprayed out from a nozzle in the form of nascent short fiber, and the nascent short fiber forms a net on the net collecting platform 310 along the direction of the inert gas flow to form a nascent fiber net;
and step four, drawing the nascent fiber web to sequentially pass through a first heat treatment roller, a second heat treatment roller and a third heat treatment roller to finally collect the web.
In a preferred embodiment, the high melting point polyester resin has a melting temperature of more than 200 degrees and is in a semi-crystalline form, and the low melting point polyester resin has a melting temperature of less than 160 degrees.
In a preferred embodiment, the heating zone in the screw extruder comprises a first zone, a second zone, a third zone and a fourth zone, wherein the temperature of the first zone is 130-160 ℃, the temperature of the second zone is 150-170 ℃, the temperature of the third zone is 160-180 ℃, the temperature of the fourth zone is 170-190 ℃, and the temperature of the die head is 170-180 ℃.
In a preferred embodiment, the screw rotating speed of the screw extruder is 50-100 r/min.
In a preferred embodiment, the temperature of the material of the melt-blown fiber spinning device is controlled to be 160 ℃ to 190 ℃.
In a preferred embodiment, the melt-blown short fiber spinning equipment comprises a spinning nozzle, an air jet and a collecting device, wherein the air jet jets inert gas to the spinning nozzle.
A non-woven fabric filter material product is characterized by being prepared by the melt-blown polyester staple fiber spinning method.
Drawings
FIG. 1 is a schematic view of a spinning nozzle;
FIG. 2 is a schematic diagram of a coolant feed unit;
FIG. 3 is a schematic view of an aftertreatment apparatus;
FIG. 4 is a schematic view of a gas chamber of the first thermal processing drum;
the labels in the figure are: 100: spinning nozzle, 110: a channel, 120: die, 130: coolant feed unit, 131: feed tube, 132: side discharge port, 133: bottom discharge port, 140: vertical passage, 200: jet, 300: collecting device, 310: network collecting platform, 320: drum, 330: conveyor belt, 400: post-processing device, 410: first heat-treatment roller, 411: gas chamber, 412: heater, 420: second heat-treatment roller, 430: and a third heat treatment roller.
Detailed Description
Example 1: the embodiment discloses a melt-blown polyester staple fiber spinning method, which comprises the following steps:
firstly, preparing or purchasing high-melting point and low-melting point polyester resins according to the prior art, wherein the melting temperature of the high-melting point polyester resin is higher than 200 ℃ and is in a semi-crystalline state, and the melting temperature of the low-melting point polyester resin is lower than 160 ℃; mixing high-melting-point polyester resin and low-melting-point polyester resin in a ratio of 1:5, adding the mixed resin into a screw extruder for extrusion granulation, wherein the highest temperature of a heating zone of the extruder is not higher than the melting temperature of the high-melting-point polyester resin and not lower than the melting temperature of the low-melting-point polyester resin, the heating zone in the screw extruder comprises a first zone, a second zone, a third zone and a fourth zone, the temperature of the first zone is 130-160 ℃, the temperature of the second zone is 150-170 ℃, the temperature of the third zone is 160-180 ℃, the temperature of the fourth zone is 170-190 ℃, the temperature of a die head is 170-180 ℃, and the screw rotating speed of the screw extruder is 50-100 r/min. The prepared granules comprise a dispersed phase formed by high-melting point polyester resin and a continuous phase formed by low-melting point resin;
secondly, adding the produced resin granules into a melt-blown short fiber spinning device, heating the resin granules in a heating zone of the spinning device, and then enabling the resin granules to enter a die head, wherein the temperature of the heating zone is not higher than the melting temperature of the high-melting polyester resin, and the temperature of materials of the melt-blown short fiber spinning device is controlled to be 160-190 ℃. Mixing the molten polyester material with aluminum hydroxide introduced into a die head, wherein the aluminum hydroxide is decomposed in an endothermic manner to cool the molten resin material, and the molten resin material is heated to be locally cooled and crystallized to form a fiber flow;
finally, the fiber flow is ejected out of the die head, is dragged and cooled by the inert gas flow with the air flow direction perpendicular to the fiber flow direction, and is ejected out of the nozzle in the form of nascent short fibers, and the nascent short fibers are formed into a net on the net collecting platform 310 along the inert gas flow direction to form a nascent fiber net; the nascent fiber web is drawn to sequentially pass through a first heat treatment roller, a second heat treatment roller and a third heat treatment roller to finally collect the web. The breaking strength of the prepared polyester fiber was 2.3 cN/dtex. The elongation at break is 20-25%.
The melt-blown short fiber spinning equipment comprises a spinning nozzle 100, an air jet 200 and a collecting device 300, wherein the air jet jets inert gas to the spinning nozzle.
The embodiment also discloses a non-woven fabric filter material product which is prepared by the melt-blown polyester staple fiber spinning method.
Example 2: the embodiment discloses a melt-blown short fiber spinning device, which comprises a spinning nozzle 100, an air jet 200 and a collecting device 300, wherein the spinning nozzle 100 comprises a channel 110 connected with an extruder and a die head 120 with a section smaller than the channel 110, the spinning nozzle further comprises a coolant feeding unit 130 with a side surface introduced into the die head 120, the coolant feeding unit comprises a feeding pipe 131, one end of the feeding pipe is positioned outside the die head, the tail end of the feeding pipe is positioned inside the die head, the side surface of the feeding pipe is provided with 2 side discharge ports 132, the tail end of the feeding pipe is provided with a bottom discharge port 133, an aluminum hydroxide material overflows from the side discharge ports and the bottom discharge port through the feeding pipe and is mixed with a spinning solution, the aluminum hydroxide is heated and decomposed into aluminum oxide and water vapor by the spinning solution to reduce the temperature of the spinning solution in the die head, the tail end of the die head 120 is, the vertical channel is provided with an upper opening and a lower opening, and the die head is communicated with the vertical channel; and the inert gas is sprayed out from the gas sprayer and enters the vertical channel through the upper opening, the spinning solution is led out from the lower opening and cooled to form a fiber flow, and the fiber flow is accumulated on the collecting device to form a short fiber net.
As shown in fig. 3, the collecting device 300 includes a web collecting table 310, a roller 320, and a conveyer belt 330 connecting the web collecting table and the roller 320, and the jet 200 has a plurality of nozzles at its end. The short fiber web is heat treated by a post-treatment device. The heat treatment equipment comprises a first heat treatment roller 410, a second heat treatment roller 420 and a third heat treatment roller 430, the three heat treatment rollers are identical in structure, a gas cavity 411 positioned outside the rollers is arranged in each heat treatment roller, inert gas capable of heating fibers is arranged in each gas cavity, and a heater 412 is arranged in the center of each heat treatment roller and capable of heating the gas in each gas cavity. The heater is one of an electromagnetic heater and a resistance wire heater. The invention also discloses a short fiber melt-blown non-woven fabric product which is prepared by spinning through the spinning equipment.
The molten material of the fiber enters the die head 120 from the channel 110, wherein the aluminum hydroxide overflowing from the side discharge port 132 and the bottom discharge port 133 of the feeding unit 130 is heated and decomposed, so that the temperature of the molten material is reduced, the viscosity is reduced, a fiber flow is formed, the fiber flow is pulled by the inert gas passing through the vertical channel 140 and is ejected from the die head 120, short fibers are formed at the same time, the inert gas cools the fiber flow, the short fibers are formed into a web on the web collecting table 310 to form a nascent fiber web, then the nascent fiber web is subjected to heat treatment through the first heat treatment roller 410, the second heat treatment roller 420 and the third heat treatment roller 430, the temperature of the heat treatment is set according to the fiber material and requirements, the heated inert gas is arranged in the gas cavity in the rollers, the nascent fiber can be heated with low energy consumption, and the heating efficiency.
Claims (5)
1. The melt-blown polyester staple fiber spinning method is characterized by comprising the following steps of:
step one, preparing or purchasing high-melting-point and low-melting-point polyester resins, mixing the high-melting-point polyester resin and the low-melting-point polyester resin according to the proportion of 1 (5-10), adding the mixed resin into a screw extruder for extrusion granulation, wherein the highest temperature of a heating zone of the extruder is not higher than the melting temperature of the high-melting-point polyester resin and not lower than the melting temperature of the low-melting-point polyester resin, and the prepared granules comprise a dispersed phase formed by the high-melting-point polyester resin and a continuous phase formed by the low-melting-point polyester resin;
secondly, adding the obtained resin granules into melt-blown short fiber spinning equipment, heating the melt-blown short fiber spinning equipment in a heating zone of the spinning equipment, then enabling the melt-blown short fiber spinning equipment to enter a die head, enabling the temperature of the heating zone not to be higher than the melting temperature of the high-melting polyester resin, mixing the molten polyester material with an aluminum hydroxide material introduced into the die head, enabling the aluminum hydroxide to be decomposed in an endothermic manner, cooling the molten resin material, and heating the molten resin material to perform local cooling crystallization to form a fiber flow;
step three, the fiber flow spraying die head is drawn and cooled by inert gas flow with the airflow direction vertical to the fiber flow direction, and the nascent short fiber is sprayed out from a nozzle in the form of nascent short fiber, and the nascent short fiber forms a net on a net collecting platform (310) along the direction of the inert gas flow to form a nascent fiber net;
step four, the nascent fiber web is drawn to sequentially pass through a first heat treatment roller, a second heat treatment roller and a third heat treatment roller to finally collect the web;
the melting temperature of the high-melting-point polyester resin is higher than 200 ℃, the high-melting-point polyester resin is in a semi-crystalline state, and the melting temperature of the low-melting-point polyester resin is lower than 160 ℃;
the heating zone in the screw extruder comprises a first zone, a second zone, a third zone and a fourth zone, wherein the temperature of the first zone is 130-160 ℃, the temperature of the second zone is 150-170 ℃, the temperature of the third zone is 160-180 ℃, the temperature of the fourth zone is 170-190 ℃, and the temperature of a die head is 170-180 ℃.
2. The method for spinning melt-blown polyester staple fibers according to claim 1, wherein the screw speed of the screw extruder is 50 to 100 r/min.
3. The method of claim 2, wherein the temperature of the material of the melt-blown fiber spinning equipment is controlled to 160 ℃ to 190 ℃.
4. The method for spinning meltblown polyester staple fibers according to any of the claims 1 to 3, wherein said device for spinning meltblown staple fibers comprises a spinning nozzle (100), an air jet (200) and a collecting device (300), the air jet ejecting inert gas towards the spinning nozzle.
5. A non-woven fabric filter material product, which is characterized by being prepared by the melt-blown polyester staple fiber spinning method of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010956551.0A CN112048827B (en) | 2020-09-11 | 2020-09-11 | Melt-blown short fiber spinning method and non-woven fabric filter material product prepared by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010956551.0A CN112048827B (en) | 2020-09-11 | 2020-09-11 | Melt-blown short fiber spinning method and non-woven fabric filter material product prepared by same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112048827A CN112048827A (en) | 2020-12-08 |
| CN112048827B true CN112048827B (en) | 2021-03-30 |
Family
ID=73610024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010956551.0A Active CN112048827B (en) | 2020-09-11 | 2020-09-11 | Melt-blown short fiber spinning method and non-woven fabric filter material product prepared by same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112048827B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE560130A (en) * | 1956-08-28 | |||
| CN1702104A (en) * | 2004-05-24 | 2005-11-30 | 杨宝柱 | Process for preparing column type polymer compound additives |
| US8518311B2 (en) * | 2007-08-22 | 2013-08-27 | Kimberly-Clark Worldwide, Inc. | Multicomponent biodegradable filaments and nonwoven webs formed therefrom |
| CN102286799B (en) * | 2011-08-22 | 2013-05-29 | 阜宁澳洋科技有限责任公司 | Fire-retardant viscose fiber and preparation method thereof |
| CN105780297B (en) * | 2016-04-05 | 2017-11-28 | 南通大学 | Goose down heat insulating material and its production method are imitated in a kind of compound association environmental protection |
| CN110126171B (en) * | 2019-05-17 | 2021-11-02 | 苏州申赛新材料有限公司 | Integrated foaming forming process for polymer particles |
-
2020
- 2020-09-11 CN CN202010956551.0A patent/CN112048827B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112048827A (en) | 2020-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1097100C (en) | Process of making spun-bonded web | |
| US20110076907A1 (en) | Apparatus and method for melt spun production of non-woven fluoropolymers or perfluoropolymers | |
| JP3134959B2 (en) | Composite melt blow spinneret | |
| US20050056956A1 (en) | Process for forming micro-fiber cellulosic nonwoven webs from a cellulose solution by melt blown technology and the products made thereby | |
| US8585388B2 (en) | Process and apparatus for the production of nonwoven fabrics from extruded filaments | |
| CN101760903B (en) | Method for preparing polyphenylene sulfide spun-bonded needle punched non-woven fabrics | |
| CN1078510A (en) | The equipment for preparation method and this method of enforcement of cellulose module | |
| CN109056196B (en) | High-filtering-precision polyester spunbonded non-woven fabric manufacturing equipment and method | |
| CN113584722B (en) | Forming process of melt-blown non-woven fabric | |
| SK26795A3 (en) | Process and device for producing cellulose fibers | |
| CN103132248A (en) | Manufacturing equipment for elastic spun-bonded nonwovens and method for elastic spun-bonded nonwovens | |
| CN106087255A (en) | The preparation method of polyester ageing resistance by ultraviolet light spunbonded needle-punched geotextile | |
| CN102733094A (en) | PET/PA6 (Polyethylene Terephthalate/Poly Amide 6) double-component hollow orange peel fiber and production process thereof | |
| CN113026207A (en) | Spray-melting cloth spray-melting production method and production system thereof | |
| CN112048827B (en) | Melt-blown short fiber spinning method and non-woven fabric filter material product prepared by same | |
| CN206858772U (en) | Equipment for producing three component compound nonwoven cloths | |
| CN112048775B (en) | Melt-blown polyester staple fiber spinning equipment and non-woven fabric filter material product | |
| CN112575397A (en) | Spinneret plate, equipment and method for manufacturing high-gram-weight spun-bonded hot-rolled non-woven fabric | |
| CN106917193A (en) | Equipment for producing three component compound nonwoven cloths | |
| KR100995296B1 (en) | Multiple spinning nozzle arrangement and method for suctioning and blowing | |
| CN113512775B (en) | Preparation facilities of micron order fibre non-woven fabrics | |
| CN107794580A (en) | A kind of efficiently solution spinning machine | |
| CN107435170A (en) | A kind of production line and its production method of high-cleanness fine-denier polyamide fiber 6 long filament | |
| CN107502970A (en) | A kind of production method and its production line of high-cleanness fine-denier polyamide fiber 6 long filament | |
| CN111719189A (en) | 5D or 7D POY spinning line equipment is blown to superfine denier veneer ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210311 Address after: 1405 Hanjing financial center, 9968 Shennan Avenue, Maling community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518064 Applicant after: JANEZT Co.,Ltd. Address before: 210000 No.1, Pancheng new street, Pukou District, Nanjing City, Jiangsu Province Applicant before: Qin Xiaokang |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |