CN111809257A - Be applied to special shower nozzle structure of nanofiber melt-blown preparation - Google Patents
Be applied to special shower nozzle structure of nanofiber melt-blown preparation Download PDFInfo
- Publication number
- CN111809257A CN111809257A CN202010452187.4A CN202010452187A CN111809257A CN 111809257 A CN111809257 A CN 111809257A CN 202010452187 A CN202010452187 A CN 202010452187A CN 111809257 A CN111809257 A CN 111809257A
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- section
- pipe
- base body
- air inlet
- vent
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- 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
- D01D5/098—Melt spinning methods with simultaneous stretching
- D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
-
- 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
- D01D4/00—Spinnerette packs; Cleaning thereof
Abstract
A special nozzle structure applied to nanofiber melt-blowing preparation comprises a storage barrel, a discharge pipe, a capillary, a heating block, a vent pipe, a first substrate, an airflow inlet pipe, a flow guide pipe and a second substrate; the discharge pipe is arranged at the bottom end of the storage barrel; the capillary tube is arranged at the bottom end of the discharge tube; the heating block is arranged at the bottom end of the material storage barrel; the vent pipe is arranged on the outer side of the capillary; the first base body is arranged on two sides of the outer wall of the vent pipe; the airflow inlet pipes are arranged on two sides of the first base body, and the flow guide pipe is obliquely arranged on one side of the bottom end of the airflow inlet pipe; the top surface of the second base body is fixedly arranged on the bottom surface of the first base body. The invention carries out twice traction on the fiber yarn, and the fiber yarn has strong uniformity and high quality; the drawing process effectively prevents the fiber bundle from being broken, and the production stability of the device is strong.
Description
Technical Field
The invention relates to the field of melt-blown textile, in particular to a special nozzle structure applied to the melt-blown preparation of nano fibers.
Background
The preparation of the nano-fiber is carried out by a melt-blowing method, and the melt-blowing method is a spinning method for rapidly stretching, solidifying and forming a high-power polymer melt which is just extruded by a high-speed hot air flow. The method has the advantages of short process flow and capability of directly preparing the non-woven fabric by spinning. The melt-blowing method has the technical principle that polymer master batches are placed into an extruder and melted in the extruder, the temperature is about 240 ℃, a melt reaches a melt-blowing die head through a metering pump, and the metering pump measures the flow of the melt output to a nozzle. The spray heads are a row of capillary tubes with the spacing of less than 1mm and the diameter of 0.2-0.4 mm. Air inlets are formed on two sides of the capillary tube, and compressed air at the temperature of 250-300 ℃ is added. When the just-formed polymer is extruded out of the spinneret, the head end of the compressed air acts on the polymer to draw the hot filaments to a diameter of 1-10 mu m with an air flow higher than the sound velocity (550 m/s). The hot air mixes with the surrounding air as it flows downward, cooling the fibers and eventually consolidating them into short, fine fibers.
In the existing nozzle structure for the preparation process by the melt-blowing method, the air inlets on the two sides of the capillary tube are generally of a single-hole structure, the fiber bundle at the nozzle is drawn for one time only through one group of air inlets, the uniformity degree of the drawn fiber is low, the strength of a single fiber is low, and the preparation quality of a fiber net is low; in addition, the existing nozzle structure also has the problem that two groups of air inlets are formed in two sides of the knitting wool pipe, but the nozzle structure continuously stretches and draws the fiber bundles twice in the same direction, the strength of a single fiber is enhanced, and meanwhile, the fiber bundles are easy to break during drawing, so that the stability of the production device is low.
Disclosure of Invention
In order to solve the existing problems, the invention discloses a special nozzle structure applied to nanofiber melt-blowing preparation, and the specific technical scheme is as follows: a special nozzle structure applied to nanofiber melt-blowing preparation comprises a storage barrel, a discharge pipe, a capillary, a heating block, a vent pipe, a first substrate, an airflow inlet pipe, a flow guide pipe and a second substrate;
the discharge pipe is arranged at the bottom end of the storage barrel; the capillary tube is arranged at the bottom end of the discharge tube; the heating block is arranged at the bottom end of the storage barrel, one side of the heating block is attached to the bottom surface of the storage barrel, and one side of the heating block is attached to the side surface of the discharge pipe; the vent pipe is arranged on the outer side of the capillary tube, the vent pipe wraps the capillary tube, a connecting block is arranged on the end face of the vent pipe, the connecting block and the vent pipe are fixedly arranged, one side of the connecting block is assembled on the bottom end face of the heating block and is fixedly arranged, and the capillary tube penetrates through the connecting block; the inner wall of the vent pipe is longitudinally provided with a partition plate, the partition plate is in a spiral shape and is attached to the outer side wall of the capillary, and a cavity structure is arranged between the partition plate and the vent pipe to form a vent cavity; the first base body is arranged on two sides of the outer wall of the breather pipe and symmetrically arranged, the top surface of the first base body is assembled on the bottom surface of the heating block and fixedly arranged, one side of the top end of the first base body is in a cavity shape and is a linear air inlet section, one end of the linear air inlet section is provided with a turbulence section, one end of the turbulence section is communicated with the linear air inlet section, and one end of the turbulence section is communicated with one side of the top end of the breather pipe; one side of the bottom end of the first base body is in a cavity shape and is a flow distribution section, and one end of the flow distribution section is communicated with one end of the turbulent flow section; the air inlet pipes are arranged on two sides of the first base body, the flow guide pipe is obliquely arranged on one side of the bottom end of the air inlet pipe, one end of the flow guide pipe is communicated with the air inlet pipe, and one end of the flow guide pipe is aligned and assembled with the linear air inlet section and is communicated with the linear air inlet section; the second base member set up in the both sides of breather pipe are the symmetry and set up, every side the inside of second base member is the cavity form, for the reposition of redundant personnel linkage segment, the top of reposition of redundant personnel linkage segment is to being located the bottom of reposition of redundant personnel section, and will the top surface assembly of second base member in the bottom surface of first base member is fixed the setting.
Furthermore, the discharging pipe is of a bucket-shaped structure with one wide end and one narrow end.
Further, the breather pipe is the round tube tubular structure, the pipe diameter of breather pipe is greater than the capillary, the bottom wall of breather pipe is incurved column structure, is the binding off form.
Further, the ventilation cavity is of a double-spiral structure.
Furthermore, the straight air inlet section and the vent pipe are obliquely arranged.
Furthermore, the turbulence section is bent and has an S-shaped structure, and one end of the turbulence section is obliquely arranged with the vent pipe; the turbulent flow section of each side of the first base body is communicated with one ventilation cavity in the ventilation pipe.
Furthermore, the reposition of redundant personnel section with the straight line section of admitting air is perpendicular setting, just the tip of reposition of redundant personnel section is to being located the vortex section.
Furthermore, the end part of the flow dividing section is of a horn mouth-shaped structure.
Furthermore, the cross-sectional shape of reposition of redundant personnel linkage segment is the form of buckling, the bottom outlet of reposition of redundant personnel linkage segment is aimed at the export bottom of capillary.
The invention has the beneficial effects that:
two groups of vent holes are arranged on two sides of the ejection part of the capillary tube, the two groups of vent holes are longitudinally stacked, the injection angles of the structures of the two groups of vent holes are different, compressed air and polymer melt in the capillary tube are stretched in the same direction through a vent cavity attached to the capillary tube, and the compressed air in the vent cavity is blown out spirally, so that the drawn fiber has certain torsional strength, and the process is a drawing process; the reposition of redundant personnel linkage segment that the both sides bottom slant of capillary set up carries out secondary slant tractive to the cellosilk of capillary primary tractive, has guaranteed that the cellosilk has higher even degree, and the air current of secondary tractive can carry out the below air current centre gripping conveying far away to the cellosilk, and the cellosilk degree of consistency after carrying out twice tractive is strong, the high quality.
This device carries out structural design with two sets of inlet port structures of both sides, and the air current after making to blow off is the heliciform and the slant blows, when having guaranteed the tractive effect, changes the stress point, the atress mode that blow off the tractive to the cellosilk, has prevented effectively that the tow from producing the phenomenon of splitting when compressed air tractive, and the stability of the production of this device is strong.
Drawings
FIG. 1 is a schematic cross-sectional view of a showerhead construction of the present invention.
List of reference numerals:
a material storage cylinder 1;
a discharge pipe 2;
a capillary tube 3;
a heating block 4;
the air pipe 5, the connecting block 5-1, the partition plate 5-2 and the air cavity 5-3;
the device comprises a first base body 6, a linear air inlet section 6-1, a turbulent flow section 6-2 and a flow dividing section 6-3;
an airflow inlet pipe 7;
a flow guide pipe 8;
a second base body 9 and a shunt connecting section 9-1.
Detailed Description
In order to make the technical scheme of the invention clearer and clearer, the invention is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention. The fixed connection, the fixed arrangement and the fixed structure mentioned in the embodiment are known technologies known to those skilled in the art, such as plugging, gluing, welding, screwing, bolt-nut connection, riveting and the like.
With the attached drawings, the special nozzle structure applied to the nanofiber melt-blown preparation comprises a material storage cylinder 1, a material discharge pipe 2, a capillary 3, a heating block 4, a vent pipe 5, a first substrate 6, an air inlet pipe 7, a flow guide pipe 8 and a second substrate 9;
the discharge pipe 2 is arranged at the bottom end of the storage barrel 1; the capillary tube 3 is arranged at the bottom end of the discharge tube 2; the heating block 4 is arranged at the bottom end of the material storage barrel 1, one side of the heating block 4 is attached to the bottom surface of the material storage barrel 1, and one side of the heating block 4 is attached to the side surface of the discharge pipe 2; the vent pipe 5 is arranged at the outer side of the capillary 3, the vent pipe 5 wraps the capillary 3, a connecting block 5-1 is arranged on the end face of the vent pipe 5, the connecting block 5-1 and the vent pipe 5 are fixedly arranged, one side of the connecting block 5-1 is assembled at the bottom end face of the heating block 4 and is fixedly arranged, and the capillary 3 penetrates through the connecting block 5-1; a partition plate 5-2 is longitudinally arranged on the inner wall of the vent pipe 5, the partition plate 5-2 is in a spiral shape and is attached to the outer side wall of the capillary 3, and a cavity structure is arranged between the partition plate 5-2 and the vent pipe 5 to form a vent cavity 5-3; the first base body 6 is arranged on two sides of the outer wall of the vent pipe 5 and symmetrically arranged, the top surface of the first base body 6 is fixedly arranged on the bottom surface of the heating block 4, one side of the top end of the first base body 6 is in a cavity shape and is a linear air inlet section 6-1, a turbulence section 6-2 is arranged at one end of the linear air inlet section, one end of the turbulence section 6-2 is communicated with the linear air inlet section 6-1, and one end of the turbulence section 6-2 is communicated with one side of the top end of the vent pipe 5; one side of the bottom end of the first base body 6 is in a cavity shape and is a flow distribution section 6-3, and one end of the flow distribution section 6-3 is communicated with one end of the flow disturbance section 6-2; the air inlet pipe 7 is arranged on two sides of the first base body 6, the flow guide pipe 8 is obliquely arranged on one side of the bottom end of the air inlet pipe 7, one end of the flow guide pipe 8 is communicated with the air inlet pipe 7, and one end of the flow guide pipe 8 is aligned and assembled with the linear air inlet section 6-1 and is communicated with the linear air inlet section; the second base bodies 9 are symmetrically arranged on two sides of the vent pipe 5, the inside of each second base body 9 is in a cavity shape and is a shunting connection section 9-1, the top end of the shunting connection section 9-1 is opposite to the bottom end of the shunting section 6-3, and the top surface of the second base body 9 is fixedly arranged on the bottom surface of the first base body 6.
Further, the discharging pipe 2 is in a bucket-shaped structure with one wide end and one narrow end.
Further, breather pipe 5 is round tubular structure, the pipe diameter of breather pipe 5 is greater than capillary 3, the bottom wall of breather pipe 5 is incurved column structure, is the binding off form.
Further, the ventilation cavity 5-3 is in a double-spiral structure.
Further, the linear air inlet section 6-1 and the air pipe 5 are obliquely arranged.
Furthermore, the turbulence section 6-2 is bent and has an S-shaped structure, and one end of the turbulence section 6-2 is obliquely arranged with the vent pipe 5; the turbulent flow section 6-2 of the first base body 6 on each side is communicated with one ventilation cavity 5-3 in the ventilation pipe 5.
Furthermore, the flow distribution section 6-3 is perpendicular to the linear air inlet section 6-1, and the end of the flow distribution section 6-3 is opposite to the flow disturbance section 6-2.
Further, the end part of the flow dividing section 6-3 is of a bell mouth-shaped structure.
Furthermore, the cross-sectional shape of the shunt connecting section 9-1 is a bent shape, and the outlet at the bottom end of the shunt connecting section 9-1 is aligned to the outlet bottom end of the capillary tube 3.
The structural principle of the invention is as follows:
the polymer melt is stored in the material storage barrel, the polymer melt enters the capillary along the discharge pipe, the heating block is attached to the side walls of the material storage barrel and the discharge pipe for heating, and meanwhile, the heating block heats the top surface of the first substrate; compressed air is introduced into the airflow inlet pipe and enters the linear air inlet section of the first base body through the flow guide pipe, the compressed air in the linear air inlet section exchanges heat with the first base body to form hotter air, when the compressed air passes through the turbulence section, the turbulence section is of an S-shaped structure, the compressed air forms vortex in the turbulence section, part of the compressed air rapidly passes through the wall surface of the turbulence section and enters the ventilation cavity of the vent pipe, and turbulence generated by part of the compressed air enters the flow distribution section; the compressed air in the ventilation cavity spirally moves downwards along the ventilation cavity, when the compressed air with a certain temperature contacts the side wall of the capillary tube, the heat preservation of the polymer melt in the capillary tube is realized, and the compressed air is blown out from the bottom end of the ventilation tube to spirally pull the polymer melt at the bottom end of the capillary tube; compressed air passing through the shunting section enters the shunting connecting section and is obliquely blown out from the bottom end of the shunting connecting section, so that polymer melt in the capillary is pulled for a long distance.
The invention has the beneficial effects that:
two groups of vent holes are arranged on two sides of the ejection part of the capillary tube, the two groups of vent holes are longitudinally stacked, the injection angles of the structures of the two groups of vent holes are different, compressed air and polymer melt in the capillary tube are stretched in the same direction through a vent cavity attached to the capillary tube, and the compressed air in the vent cavity is blown out spirally, so that the drawn fiber has certain torsional strength, and the process is a drawing process; the reposition of redundant personnel linkage segment that the both sides bottom slant of capillary set up carries out secondary slant tractive to the cellosilk of capillary primary tractive, has guaranteed that the cellosilk has higher even degree, and the air current of secondary tractive can carry out the below air current centre gripping conveying far away to the cellosilk, and the cellosilk degree of consistency after carrying out twice tractive is strong, the high quality.
This device carries out structural design with two sets of inlet port structures of both sides, and the air current after making to blow off is the heliciform and the slant blows, when having guaranteed the tractive effect, changes the stress point, the atress mode that blow off the tractive to the cellosilk, has prevented effectively that the tow from producing the phenomenon of splitting when compressed air tractive, and the stability of the production of this device is strong.
Claims (9)
1. A special nozzle structure applied to nanofiber melt-blowing preparation is characterized by comprising a storage cylinder (1), a discharge pipe (2), a capillary (3), a heating block (4), a vent pipe (5), a first substrate (6), an air inlet pipe (7), a guide pipe (8) and a second substrate (9);
the discharge pipe (2) is arranged at the bottom end of the storage barrel (1); the capillary tube (3) is arranged at the bottom end of the discharge tube (2); the heating block (4) is arranged at the bottom end of the storage barrel (1), one side of the heating block (4) is attached to the bottom surface of the storage barrel (1), and one side of the heating block (4) is attached to the side surface of the discharge pipe (2); the vent pipe (5) is arranged on the outer side of the capillary tube (3), the vent pipe (5) wraps the capillary tube (3), a connecting block (5-1) is arranged on the end face of the vent pipe (5), the connecting block (5-1) and the vent pipe (5) are fixedly arranged, one side of the connecting block (5-1) is assembled on the bottom end face of the heating block (4) and is fixedly arranged, and the capillary tube (3) penetrates through the connecting block (5-1); a partition plate (5-2) is longitudinally arranged on the inner wall of the vent pipe (5), the partition plate (5-2) is in a spiral shape and is attached to the outer side wall of the capillary tube (3), and a cavity structure is arranged between the partition plate (5-2) and the vent pipe (5) to form a vent cavity (5-3); the first base body (6) is arranged on two sides of the outer wall of the vent pipe (5) and symmetrically arranged, the top surface of the first base body (6) is assembled on the bottom surface of the heating block (4) and fixedly arranged, one side of the top end of the first base body (6) is in a cavity shape and is a linear air inlet section (6-1), a turbulence section (6-2) is arranged at one end of the linear air inlet section, one end of the turbulence section (6-2) is communicated with the linear air inlet section (6-1), and one end of the turbulence section (6-2) is communicated with one side of the top end of the vent pipe (5); one side of the bottom end of the first base body (6) is in a cavity shape and is a flow distribution section (6-3), and one end of the flow distribution section (6-3) is communicated with one end of the flow disturbance section (6-2); the air inlet pipe (7) is arranged on two sides of the first base body (6), the flow guide pipe (8) is obliquely arranged on one side of the bottom end of the air inlet pipe (7), one end of the flow guide pipe (8) is communicated with the air inlet pipe (7), and one end of the flow guide pipe (8) is aligned and assembled with the linear air inlet section (6-1) and is communicated with the linear air inlet section; the second base body (9) is arranged on two sides of the vent pipe (5) and symmetrically arranged, each side of the second base body (9) is in a cavity shape and is a shunting connection section (9-1), the top end of the shunting connection section (9-1) is opposite to the bottom end of the shunting section (6-3), and the top surface of the second base body (9) is assembled on the bottom surface of the first base body (6) and fixedly arranged.
2. The structure of the nozzle specially used for melt-blown preparation of nano-fiber according to claim 1, wherein the discharge pipe (2) is of a bucket-shaped structure with one wide end and one narrow end.
3. The structure of claim 1, wherein the vent tube (5) is a circular tube, the diameter of the vent tube (5) is larger than that of the capillary tube (3), and the bottom wall of the vent tube (5) is a bent-inward structure and is closed.
4. The structure of the nozzle specially used for the melt-blown preparation of the nano-fiber according to claim 1, wherein the aeration cavity (5-3) is in a double-spiral structure.
5. The structure of the nozzle dedicated for melt-blown nanofiber manufacturing according to claim 1, wherein the straight air inlet section (6-1) is obliquely arranged with the air pipe (5).
6. The structure of the nozzle as claimed in claim 1, wherein the turbulence section (6-2) is curved and has an "S" shape, and one end of the turbulence section (6-2) is inclined to the vent pipe (5); the turbulent flow section (6-2) of each side of the first base body (6) is communicated with one ventilation cavity (5-3) in the ventilation pipe (5).
7. The structure of the nozzle special for melt-blown preparation of nano fibers of claim 1, wherein the flow dividing section (6-3) is perpendicular to the linear air inlet section (6-1), and the end of the flow dividing section (6-3) is opposite to the flow disturbing section (6-2).
8. The structure of the nozzle specially used for melt-blown preparation of nano-fiber according to claim 1, wherein the end of the flow dividing section (6-3) is in a bell mouth-shaped structure.
9. The structure of the nozzle dedicated for melt-blown preparation of nano-fibers according to claim 1, wherein the cross-sectional shape of the branch connecting section (9-1) is a bent shape, and the outlet at the bottom end of the branch connecting section (9-1) is aligned with the outlet bottom end of the capillary (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010452187.4A CN111809257A (en) | 2020-05-26 | 2020-05-26 | Be applied to special shower nozzle structure of nanofiber melt-blown preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010452187.4A CN111809257A (en) | 2020-05-26 | 2020-05-26 | Be applied to special shower nozzle structure of nanofiber melt-blown preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111809257A true CN111809257A (en) | 2020-10-23 |
Family
ID=72848487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010452187.4A Withdrawn CN111809257A (en) | 2020-05-26 | 2020-05-26 | Be applied to special shower nozzle structure of nanofiber melt-blown preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111809257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537945A (en) * | 2022-10-08 | 2022-12-30 | 南通大学 | Melt-blown spinning die head capable of refining polymer fibers |
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|---|---|---|---|---|
| JPH01246406A (en) * | 1988-03-28 | 1989-10-02 | Mitsui Petrochem Ind Ltd | Melt-blow spinning process and die therefor |
| JPH0593310A (en) * | 1991-09-30 | 1993-04-16 | Nippon Sheet Glass Co Ltd | Method for producing straight yarn from viscous substance and device therefor |
| US20120139153A1 (en) * | 2010-12-01 | 2012-06-07 | Toyota Boshoku Kabushiki Kaisha | Melt spinning apparatus and melt spinning method |
| CN103469317A (en) * | 2013-09-29 | 2013-12-25 | 无锡众望四维科技有限公司 | Melt spraying nozzle structure for melt spraying machine |
| CN103498202A (en) * | 2013-09-29 | 2014-01-08 | 无锡众望四维科技有限公司 | Melt-blown head of melt-blown machine |
| CN104711683A (en) * | 2013-12-15 | 2015-06-17 | 无锡市二泉针织厂 | Fusible sprayer structure of spinning machine |
| CN105369365A (en) * | 2015-12-02 | 2016-03-02 | 苏州大学 | Melt-blow nozzle structure for fiber preparation |
| CN205616999U (en) * | 2016-04-26 | 2016-10-05 | 天津硕艾特科技发展有限公司 | PP melts equipment of spouting |
| CN207845840U (en) * | 2018-01-25 | 2018-09-11 | 湖北金卫康防护用品有限公司 | A kind of non-woven fabrics melt-blown component |
-
2020
- 2020-05-26 CN CN202010452187.4A patent/CN111809257A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01246406A (en) * | 1988-03-28 | 1989-10-02 | Mitsui Petrochem Ind Ltd | Melt-blow spinning process and die therefor |
| JPH0593310A (en) * | 1991-09-30 | 1993-04-16 | Nippon Sheet Glass Co Ltd | Method for producing straight yarn from viscous substance and device therefor |
| US20120139153A1 (en) * | 2010-12-01 | 2012-06-07 | Toyota Boshoku Kabushiki Kaisha | Melt spinning apparatus and melt spinning method |
| CN103469317A (en) * | 2013-09-29 | 2013-12-25 | 无锡众望四维科技有限公司 | Melt spraying nozzle structure for melt spraying machine |
| CN103498202A (en) * | 2013-09-29 | 2014-01-08 | 无锡众望四维科技有限公司 | Melt-blown head of melt-blown machine |
| CN104711683A (en) * | 2013-12-15 | 2015-06-17 | 无锡市二泉针织厂 | Fusible sprayer structure of spinning machine |
| CN105369365A (en) * | 2015-12-02 | 2016-03-02 | 苏州大学 | Melt-blow nozzle structure for fiber preparation |
| CN205616999U (en) * | 2016-04-26 | 2016-10-05 | 天津硕艾特科技发展有限公司 | PP melts equipment of spouting |
| CN207845840U (en) * | 2018-01-25 | 2018-09-11 | 湖北金卫康防护用品有限公司 | A kind of non-woven fabrics melt-blown component |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537945A (en) * | 2022-10-08 | 2022-12-30 | 南通大学 | Melt-blown spinning die head capable of refining polymer fibers |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20201023 |