CN113201863B - Manufacturing device and process of adsorption antibacterial non-woven fabric for medical protective clothing - Google Patents
Manufacturing device and process of adsorption antibacterial non-woven fabric for medical protective clothing Download PDFInfo
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- CN113201863B CN113201863B CN202110367880.6A CN202110367880A CN113201863B CN 113201863 B CN113201863 B CN 113201863B CN 202110367880 A CN202110367880 A CN 202110367880A CN 113201863 B CN113201863 B CN 113201863B
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- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
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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
- D01D5/12—Stretch-spinning methods
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M17/00—Producing multi-layer textile fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0013—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using multilayer webs
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0038—Polyolefin fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
- D06N3/009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin by spraying components on the web
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/042—Acrylic polymers
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2509/00—Medical; Hygiene
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- Engineering & Computer Science (AREA)
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Abstract
The bottom of the spinneret plate is communicated with the top of the conveyer belt after sequentially passing through a cooling cavity and a drafting cavity, the part, right opposite to the bottom of the drafting cavity, on the conveyer belt is a laying section, the upstream of the laying section is a material incoming section, the downstream of the laying section is a film forming section, the material incoming section, the conveyer belt and the film forming section move rightwards together along the same horizontal line, at least two inclined lower spray pipes and at least two inclined upper spray pipes are arranged in the drafting device, the inclined lower spray pipes are higher than the inclined upper spray pipes, inclined lower spray ports of the inclined lower spray pipes are communicated with the drafting cavity, inclined upper spray ports of the inclined upper spray pipes are communicated with the drafting cavity, and the inclined lower spray ports are higher than the inclined upper spray ports. The design is not only simple and easy to produce and not limited by the surface structure modification process, but also has the functions of antibiosis and adsorption.
Description
Technical Field
The invention relates to a preparation process of a non-woven fabric for medical protective clothing, belongs to the technical field of functional non-woven fabric preparation, and particularly relates to a preparation device and a preparation process of an adsorption antibacterial non-woven fabric for medical protective clothing.
Background
The medical protective clothing mainly has the functions of shielding and obstructing bacteria, body fluid, external infectious substances and the like so as to effectively isolate external viruses or pollution. With the rapid development of modern industry, the damage of human beings to the nature is aggravated, the pollution is increasingly serious, and the multiplication and the transmission of various germs are caused, so the requirement on the protective performance of the protective clothing fabric is higher and higher, wherein the antibacterial performance is a very important index. Therefore, the development of antibacterial non-woven fabrics is of great significance. The SMS composite material non-woven fabric has the high strength of spun-bonded fabric, has the good filtering performance of melt-blown fabric, has good air permeability, soft hand feeling and good filtering performance, and is widely applied to medical protective clothing. Therefore, if the SMS composite material can be provided with an antibacterial function, the development of an antibacterial nonwoven fabric is certainly promoted greatly.
However, most of the existing designs for endowing the SMS composite material with the antibacterial function are to carry out grafting modification or surface structure modification on the surface of the non-woven fabric, and have the defects of limitation of a surface structure modification process, complex production, more time requirement and low production efficiency. In addition, it is more difficult to impart new functions, such as adsorption function, to the SMS-based composite material on the basis of the failure to realize the antibacterial function, thereby impairing the market efficiency thereof.
The information disclosed in this background section is only for enhancement of understanding of the general background of the patent application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects and problems of complex production, limitation of a surface structure modification process and no antibacterial adsorption function in the prior art, and provides a device and a process for manufacturing an antibacterial adsorption non-woven fabric for medical protective clothing, which are simple to produce, are not limited by the surface structure modification process and have the antibacterial adsorption function.
In order to achieve the above purpose, the technical solution of the invention is as follows: a manufacturing device of an adsorption antibacterial non-woven fabric for medical protective clothing comprises a spinneret plate, a side cooling device, a drafting device and a conveying belt, wherein a cooling cavity is formed in the side cooling device, a drafting cavity is formed in the drafting device, and the bottom of the spinneret plate is communicated with the top of the conveying belt after sequentially passing through the cooling cavity and the drafting cavity;
the part of the conveying belt, which is just opposite to the bottom of the drafting cavity, is a laying section, the upstream of the laying section is a feeding section, the downstream of the laying section is a film forming section, a mist sprayer is arranged above the film forming section, a mist nozzle arranged at the bottom of the mist sprayer is just opposite to the film forming section, and the feeding section, the conveying belt and the film forming section move rightwards together along the same horizontal line;
at least two inclined lower spray pipes and at least two inclined upper powder spray pipes are arranged in the drafting device, the inclined lower spray pipes are arranged higher than the inclined upper powder spray pipes, inclined lower spray ports of the inclined lower spray pipes are communicated with the drafting cavity, inclined upper powder spray ports of the inclined upper powder spray pipes are communicated with the drafting cavity, and the inclined lower spray ports are arranged higher than the inclined upper powder spray ports;
the spraying paths of all the inclined lower spraying nozzles are connected in the drafting chamber, and the spraying paths of all the inclined upper powder spraying pipes are connected in the drafting chamber.
The joint point of the spray paths of all the inclined lower spray nozzles is higher than the joint point of the spray paths of all the inclined upper powder spraying pipes.
The lower inclined spraying pipe comprises a lower inclined spraying high pipe and a lower inclined spraying low pipe, the lower inclined spraying high pipe is higher than the lower inclined spraying low pipe, the number of the lower inclined spraying high pipes is at least two, and the number of the lower inclined spraying low pipes is also at least two.
The adjacent inclined lower spraying high pipe and the inclined lower spraying low pipe are parallel to each other.
The diameter of the inclined lower spraying high pipe is smaller than that of the inclined lower spraying low pipe, all the inclined lower spraying high pipes are uniformly arranged along the same circumference, and all the inclined lower spraying low pipes are uniformly arranged along the same circumference.
The interior of the inclined upper powder spraying pipe is provided with an inclined upper arc piece and an inclined lower arc piece, the lower ends of the inclined upper arc piece and the inclined lower arc piece are connected with the pipe wall of the inclined upper powder spraying pipe, and the high ends of the inclined upper arc piece and the inclined lower arc piece extend upwards towards the inclined upper powder spraying opening.
The cross section of the cooling cavity is rectangular, the cross section of the drafting cavity is trapezoidal with a narrow top and a wide bottom, and the top of the cross section of the drafting cavity is narrower than the bottom of the cross section of the cooling cavity.
The spinneret plate is provided with an exhaust port communicated with the cooling cavity, and the top of the spinneret plate is communicated with the output end of the screw extruder through a metering pump;
the conveying belt is of an annular structure, four corners of the conveying belt are respectively wound around the side walls of one conveying roller, and all the conveying rollers are enclosed in the conveying belt.
A manufacturing process of an adsorption antibacterial non-woven fabric for medical protective clothing is carried out by adopting the manufacturing device of the adsorption antibacterial non-woven fabric for medical protective clothing;
the manufacturing process comprises the following steps: firstly, conveying a superposed body onto a conveying belt from a material section, wherein the superposed body comprises a melt-blown fiber web and a first spun-bonded fiber web which are superposed up and down, conveying the superposed body to a laying section by the conveying belt, laying a second spun-bonded fiber web on the top of the melt-blown fiber web by a drafting cavity to form an SMS fiber web, conveying the SMS fiber web to a film forming section by the conveying belt, and spraying anionic water mist to the top of the second spun-bonded fiber web by an anionic water mist nozzle to obtain the adsorption antibacterial non-woven fabric, wherein the solute of the anionic water mist is anionic polyelectrolyte;
and the fiber filaments in the second spun-bonded fiber web are obtained after the fibers sprayed by the spinneret plate sequentially pass through the cooling cavity and the drafting cavity, in the process that the fibers sprayed by the spinneret plate pass through the drafting cavity, a downward inclined spray nozzle sprays positive water mist into the drafting cavity, the solute of the positive water mist is cationic polyelectrolyte, and meanwhile, an upward inclined spray nozzle sprays nano white bamboo charcoal powder into the drafting cavity.
The cationic polyelectrolyte is any one or any mixture of sodium alginate, hyaluronic acid, polyacrylic acid, polystyrene sulfonic acid, polyvinyl sulfonic acid and polyvinyl phosphoric acid;
the anion polyelectrolyte is any one or any mixture of polypropylene hydrochloride, chitosan, polydivinyl propyl dimethyl ammonium chloride, polyethyleneimine, polyquaternary ammonium salt and polyvinyl pyridine.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a device and a process for manufacturing adsorption antibacterial non-woven fabric for medical protective clothing, which mainly comprise a spinneret plate, a side cooling device, a drafting device and a conveyer belt, wherein an inclined lower spray pipe and an inclined upper powder spraying pipe are arranged in the drafting device and are communicated with a drafting cavity, when the fiber sprayed downwards by the spinneret plate passes through the cooling cavity and the drafting cavity in sequence, the inclined lower spray nozzle sprays the positive water mist into the drafting cavity, the solute of the positive water mist is cation polyelectrolyte, meanwhile, the nano white bamboo charcoal powder is sprayed into the drafting chamber from an inclined powder spraying port, so that the cationic polyelectrolyte and the nano white bamboo charcoal powder are attached to the second spun-bonded fiber net or the inside of the second spun-bonded fiber net, and then, when the negative fog nozzle sprays negative fog to the top of the second spun-bonded fiber net, the solute of the negative fog is anion polyelectrolyte, and the cation and anion polyelectrolytes are combined with each other to generate a composite membrane, and the design has the advantages that: firstly, the cation polyelectrolyte and the anion polyelectrolyte have the antibacterial function, so that the composite membrane formed by combining the cation polyelectrolyte and the anion polyelectrolyte also has the antibacterial function; secondly, the composite membrane has a stable structure and good water washing resistance; thirdly, the nano white bamboo charcoal powder has the function of adsorbing peculiar smell gas, such as formaldehyde, so that the product has dual functions of antibiosis and adsorption due to the addition of the nano white bamboo charcoal powder; finally, the invention only needs to add a coating process on the existing SMS production line, is easy to modify, has wide application range, is not limited by a surface structure modification process, and is beneficial to improving the production efficiency. Therefore, the invention not only has simple production and is not limited by the surface structure modification process, but also has the functions of antibiosis and adsorption, and has higher production efficiency.
2. In the device and the process for manufacturing the adsorption antibacterial non-woven fabric for the medical protective clothing, the positive water mist is sprayed downwards from the inclined lower spray nozzle to the inside of the drafting chamber, and meanwhile, the nano white bamboo charcoal powder is sprayed upwards from the inclined upper powder spraying pipe to the inside of the drafting chamber, and the design has the advantages that: firstly, the spraying of the positive water mist can disperse the fibers passing through the cooling cavity, so that the dispersion effect of the subsequent fiber filaments is improved, and the web forming quality of the second spun-bonded fiber web after being laid is improved conveniently; secondly, the cationic water mist can be dispersed and coated with cationic polyelectrolyte at the same time, and the coating effect is far better than that after the net is laid; thirdly, the nano white bamboo charcoal powder sprayed obliquely can be coated with powder on the fiber on the basis of coating the cationic polyelectrolyte, so that the adhesion effect is strong; fourthly, the nano white bamboo charcoal powder sprayed obliquely upwards can play an upward clamping and supporting effect on the fibers, prolong the time for the fibers to be dispersed and coated by the sunlight fog, and further improve the coating and dispersing effects. Therefore, the invention can not only improve the dispersion effect of the fiber, but also enhance the coating effect of the cation and the powder, and is beneficial to improving the quality of the subsequent composite membrane.
3. In the device and the process for manufacturing the adsorption antibacterial non-woven fabric for the medical protective clothing, the spraying paths of all the inclined lower spraying ports are connected in the drafting cavity, and the spraying paths of all the inclined upper spraying pipes are connected in the drafting cavity. Therefore, the coating quality of the present invention is high.
4. In the device and the process for manufacturing the adsorption antibacterial non-woven fabric for the medical protective clothing, the inclined upper arc piece and the inclined lower arc piece are arranged inside the inclined upper powder spraying pipe, wherein the lower ends of the inclined upper arc piece and the inclined lower arc piece are connected with the pipe wall of the inclined upper powder spraying pipe, and the high ends of the inclined upper arc piece and the inclined lower arc piece extend upwards towards the inclined upper powder spraying opening. Therefore, the safety of the invention is high.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the drawing apparatus of fig. 1.
Fig. 3 is a bottom view of the upper and lower spray pipes of fig. 2.
Fig. 4 is a schematic structural view of the powder spraying pipe obliquely upwards in fig. 2.
FIG. 5 is a schematic view of the mist sprayer of the present invention.
In the figure: the device comprises a spinneret plate 1, an exhaust port 11, a metering pump 12, a screw extruder 13, a side cooling device 2, a cooling cavity 21, a drafting device 3, a drafting cavity 31, a conveying belt 4, a conveying roller 41, an SMS fiber web 5, a first spun-bonded fiber web 51, a feeding section 511, a melt-blown fiber web 52, a second spun-bonded fiber web 53, a laying section 531, an adsorption antibacterial non-woven fabric 6, a film forming section 61, a negative fog sprayer 62, a negative fog nozzle 621, an inclined lower spraying pipe 7, an inclined lower spraying nozzle 71, an inclined lower spraying high pipe 72, an inclined lower spraying low pipe 73, an inclined upper powder spraying pipe 8, an inclined upper powder spraying nozzle 81, an inclined upper arc piece 82, an inclined lower arc piece 83, an air suction device 9 and a fiber web consolidation device 10.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1-5, a device for manufacturing an adsorption antibacterial non-woven fabric for medical protective clothing comprises a spinneret plate 1, a side cooling device 2, a drafting device 3 and a conveyer belt 4, wherein a cooling cavity 21 is formed in the side cooling device 2, a drafting cavity 31 is formed in the drafting device 3, and the bottom of the spinneret plate 1 is communicated with the top of the conveyer belt 4 after sequentially passing through the cooling cavity 21 and the drafting cavity 31;
the part of the conveying belt 4 opposite to the bottom of the drafting chamber 31 is a laying section 531, the upstream of the laying section 531 is a feeding section 511, the downstream of the laying section 531 is a film forming section 61, a mist sprayer 62 is arranged above the film forming section 61, a mist nozzle 621 arranged at the bottom of the mist sprayer 62 is opposite to the film forming section 61 up and down, and the feeding section 511, the conveying belt 4 and the film forming section 61 move rightwards along the same horizontal line;
at least two inclined lower spray pipes 7 and at least two inclined upper powder spray pipes 8 are arranged in the drafting device 3, the inclined lower spray pipes 7 are arranged higher than the inclined upper powder spray pipes 8, inclined lower spray ports 71 of the inclined lower spray pipes 7 are communicated with the drafting cavity 31, inclined upper powder spray ports 81 of the inclined upper powder spray pipes 8 are communicated with the drafting cavity 31, and the inclined lower spray ports 71 are arranged higher than the inclined upper powder spray ports 81;
the spray paths of all the inclined lower spray nozzles 71 are intersected in the drafting chamber 31, and the spray paths of all the inclined upper powder spraying pipes 8 are intersected in the drafting chamber 31.
The intersection point of the spray paths of all the downward inclined spray ports 71 is set higher than the intersection point of the spray paths of all the upward inclined spray pipes 8.
The inclined lower spray pipe 7 comprises an inclined lower spray high pipe 72 and an inclined lower spray low pipe 73, the inclined lower spray high pipe 72 is higher than the inclined lower spray low pipe 73, the number of the inclined lower spray high pipes 72 is at least two, and the number of the inclined lower spray low pipes 73 is also at least two.
The adjacent lower spray high pipe 72 and lower spray low pipe 73 are parallel to each other.
The diameter of the inclined lower spraying high pipe 72 is smaller than that of the inclined lower spraying low pipe 73, all the inclined lower spraying high pipes 72 are uniformly arranged along the same circumference, and all the inclined lower spraying low pipes 73 are uniformly arranged along the same circumference.
An inclined upper arc piece 82 and an inclined lower arc piece 83 are arranged inside the inclined upper powder spraying pipe 8, the lower ends of the inclined upper arc piece 82 and the inclined lower arc piece 83 are connected with the pipe wall of the inclined upper powder spraying pipe 8, and the high ends of the inclined upper arc piece 82 and the inclined lower arc piece 83 extend upwards towards the inclined upper powder spraying opening 81.
The cross section of the cooling cavity 21 is rectangular, the cross section of the drafting cavity 31 is trapezoidal with a narrow top and a wide bottom, and the top of the cross section of the drafting cavity 31 is narrower than the bottom of the cross section of the cooling cavity 21.
An exhaust port 11 communicated with the cooling cavity 21 is formed in the spinneret plate 1, and the top of the spinneret plate 1 is communicated with the output end of a screw extruder 13 through a metering pump 12;
the conveyer belt 4 is of a ring structure, four corners of the conveyer belt 4 are respectively wound around the side walls of one conveyer roller 41, and all the conveyer rollers 41 are enclosed in the conveyer belt 4.
A manufacturing process of an adsorption antibacterial non-woven fabric for medical protective clothing is carried out by adopting the manufacturing device of the adsorption antibacterial non-woven fabric for medical protective clothing;
the manufacturing process comprises the following steps: firstly, conveying a superposed body onto a conveying belt 4 from a material section 511, wherein the superposed body comprises a melt-blown fiber web 52 and a first spun-bonded fiber web 51 which are superposed up and down, conveying the superposed body to a laying section 531 by the conveying belt 4, then laying a second spun-bonded fiber web 53 on the top of the melt-blown fiber web 52 by a drafting chamber 31 to form an SMS fiber web 5, conveying the SMS fiber web 5 to a film forming section 61 by the conveying belt 4, and then spraying an anionic water mist to the top of the second spun-bonded fiber web 53 by an anionic water mist nozzle 621 to obtain the adsorption antibacterial non-woven fabric 6, wherein the solute of the anionic water mist is anionic polyelectrolyte;
the fiber filaments in the second spun-bonded fiber web 53 are obtained after the fibers sprayed by the spinneret plate 1 pass through the cooling cavity 21 and the drafting cavity 31 in sequence, in the process that the fibers sprayed by the spinneret plate 1 pass through the drafting cavity 31, the inclined lower spray opening 71 sprays positive water mist into the drafting cavity 31, the solute of the positive water mist is cationic polyelectrolyte, and meanwhile, the inclined upper spray opening 81 sprays nano white bamboo charcoal powder into the drafting cavity 31.
The cationic polyelectrolyte is any one or any mixture of sodium alginate, hyaluronic acid, polyacrylic acid, polystyrene sulfonic acid, polyvinyl sulfonic acid and polyvinyl phosphoric acid;
the anion polyelectrolyte is any one or any mixture of polypropylene hydrochloride, chitosan, polydivinyl propyl dimethyl ammonium chloride, polyethyleneimine, polyquaternary ammonium salt and polyvinyl pyridine.
The principle of the invention is illustrated as follows:
the SMS fiber web 5 in the present invention is the same as the existing SMS nonwoven fabric in structure, and is a three-layer structure, which is a second spunbond fiber web 53, a meltblown fiber web 52, and a first spunbond fiber web 51 from top to bottom.
The invention preferably provides an air suction device 9 below the laying section 531 to guide the fibers ejected from the drafting chamber 31, thereby laying a higher quality second spunbond web 53 on the laying section 531.
The adsorption antibacterial non-woven fabric 6 prepared by the invention can be subjected to a hot drying stage in the subsequent process so as to obviously improve the wear-resisting strength of the final antibacterial and adsorption non-woven fabric, thereby achieving two purposes and being extremely suitable for the continuous large-scale preparation of the non-woven fabric with the antibacterial function.
In the invention, the part of the conveying belt 4 opposite to the bottom of the drafting chamber 31 is a laying section 531, the upstream of the laying section 531 is a feeding section 511, and the downstream of the laying section 531 is a film forming section 61, so that the laying section 531 is only one part in the conveying belt 4, and the feeding section 511 and the film forming section 61 are parts outside the conveying belt 4.
After the adsorption antibacterial non-woven fabric 6 is obtained, the adsorption antibacterial non-woven fabric 6 can continuously move forward to pass through the fiber web consolidation device 10, so that the quality is further improved, and the fiber web consolidation device 10 is any one of a hot rolling machine, a needle punching machine, a spunlace machine, a hot air bonding device and a gluing device.
Example 1:
referring to fig. 1-5, a device for manufacturing an adsorption antibacterial non-woven fabric for medical protective clothing comprises a spinneret plate 1, a side cooling device 2, a drafting device 3 and a conveyer belt 4, wherein a cooling cavity 21 is formed in the side cooling device 2, a drafting cavity 31 is formed in the drafting device 3, and the bottom of the spinneret plate 1 is communicated with the top of the conveyer belt 4 after sequentially passing through the cooling cavity 21 and the drafting cavity 31; the part of the conveying belt 4 opposite to the bottom of the drafting chamber 31 is a laying section 531, the upstream of the laying section 531 is a feeding section 511, the downstream of the laying section 531 is a film forming section 61, a mist sprayer 62 is arranged above the film forming section 61, a mist nozzle 621 arranged at the bottom of the mist sprayer 62 is opposite to the film forming section 61 up and down, and the feeding section 511, the conveying belt 4 and the film forming section 61 move rightwards along the same horizontal line; at least two inclined lower spray pipes 7 and at least two inclined upper powder spray pipes 8 are arranged in the drafting device 3, the inclined lower spray pipes 7 are arranged higher than the inclined upper powder spray pipes 8, inclined lower spray ports 71 of the inclined lower spray pipes 7 are communicated with the drafting cavity 31, inclined upper powder spray ports 81 of the inclined upper powder spray pipes 8 are communicated with the drafting cavity 31, and the inclined lower spray ports 71 are arranged higher than the inclined upper powder spray ports 81; the spray paths of all the inclined lower spray nozzles 71 are intersected in the drafting chamber 31, and the spray paths of all the inclined upper powder spraying pipes 8 are intersected in the drafting chamber 31.
A manufacturing process of an adsorption antibacterial non-woven fabric for medical protective clothing is carried out by adopting the manufacturing device of the adsorption antibacterial non-woven fabric for medical protective clothing; the manufacturing process comprises the following steps: firstly, conveying a superposed body onto a conveying belt 4 from a material section 511, wherein the superposed body comprises a melt-blown fiber web 52 and a first spun-bonded fiber web 51 which are superposed up and down, conveying the superposed body to a laying section 531 by the conveying belt 4, then laying a second spun-bonded fiber web 53 on the top of the melt-blown fiber web 52 by a drafting chamber 31 to form an SMS fiber web 5, conveying the SMS fiber web 5 to a film forming section 61 by the conveying belt 4, and then spraying an anionic water mist to the top of the second spun-bonded fiber web 53 by an anionic water mist nozzle 621 to obtain the adsorption antibacterial non-woven fabric 6, wherein the solute of the anionic water mist is anionic polyelectrolyte; the fiber filaments in the second spun-bonded fiber web 53 are obtained after the fibers sprayed by the spinneret plate 1 pass through the cooling cavity 21 and the drafting cavity 31 in sequence, in the process that the fibers sprayed by the spinneret plate 1 pass through the drafting cavity 31, the inclined lower spray opening 71 sprays positive water mist into the drafting cavity 31, the solute of the positive water mist is cationic polyelectrolyte, and meanwhile, the inclined upper spray opening 81 sprays nano white bamboo charcoal powder into the drafting cavity 31.
Example 2:
the basic contents are the same as example 1, except that:
the cationic polyelectrolyte is any one or any mixture of sodium alginate, hyaluronic acid, polyacrylic acid, polystyrene sulfonic acid, polyvinyl sulfonic acid and polyvinyl phosphoric acid;
the anion polyelectrolyte is any one or any mixture of polypropylene hydrochloride, chitosan, polydivinyl propyl dimethyl ammonium chloride, polyethyleneimine, polyquaternary ammonium salt and polyvinyl pyridine.
Example 3:
the basic contents are the same as example 1, except that:
the inclined lower spray pipe 7 comprises an inclined lower spray high pipe 72 and an inclined lower spray low pipe 73, the inclined lower spray high pipe 72 is higher than the inclined lower spray low pipe 73, the number of the inclined lower spray high pipes 72 is at least two, and the number of the inclined lower spray low pipes 73 is also at least two. The adjacent lower spray high pipe 72 and lower spray low pipe 73 are parallel to each other. The diameter of the inclined lower spraying high pipe 72 is smaller than that of the inclined lower spraying low pipe 73, all the inclined lower spraying high pipes 72 are uniformly arranged along the same circumference, and all the inclined lower spraying low pipes 73 are uniformly arranged along the same circumference.
Example 4:
the basic contents are the same as example 1, except that:
the cross section of the cooling cavity 21 is rectangular, the cross section of the drafting cavity 31 is trapezoidal with a narrow top and a wide bottom, and the top of the cross section of the drafting cavity 31 is narrower than the bottom of the cross section of the cooling cavity 21. An exhaust port 11 communicated with the cooling cavity 21 is formed in the spinneret plate 1, and the top of the spinneret plate 1 is communicated with the output end of a screw extruder 13 through a metering pump 12; the conveyer belt 4 is of a ring structure, four corners of the conveyer belt 4 are respectively wound around the side walls of one conveyer roller 41, and all the conveyer rollers 41 are enclosed in the conveyer belt 4.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.
Claims (8)
1. The utility model provides a manufacturing installation of medical protective clothing adsorption of antibiotic non-woven, includes spinneret (1), side cold charge (2), drafting arrangement (3) and conveyer belt (4), cooling chamber (21) have been seted up in side cold charge (2), drafting arrangement (3) have been seted up drafting chamber (31), the bottom of spinneret (1) communicates with each other its characterized in that with the top of conveyer belt (4) after cooling chamber (21), drafting chamber (31) in proper order:
the part, right opposite to the bottom of the drafting cavity (31), of the conveying belt (4) is a laying section (531), the upstream of the laying section (531) is a material feeding section (511), the downstream of the laying section (531) is a film forming section (61), a mist sprayer (62) is arranged above the film forming section (61), a mist nozzle (621) arranged at the bottom of the mist sprayer (62) is arranged right opposite to the film forming section (61) up and down, and the material feeding section (511), the conveying belt (4) and the film forming section (61) move rightwards together along the same horizontal line;
at least two inclined lower spray pipes (7) and at least two inclined upper powder spray pipes (8) are arranged in the drafting device (3), the inclined lower spray pipes (7) are arranged higher than the inclined upper powder spray pipes (8), inclined lower spray ports (71) of the inclined lower spray pipes (7) are communicated with the drafting cavity (31), inclined upper powder spray ports (81) of the inclined upper powder spray pipes (8) are communicated with the drafting cavity (31), and the inclined lower spray ports (71) are arranged higher than the inclined upper powder spray ports (81);
the spraying paths of all the inclined lower spraying ports (71) are connected into the drafting chamber (31), and the spraying paths of all the inclined upper powder spraying pipes (8) are connected into the drafting chamber (31);
the intersection points of the spray paths of all the inclined lower spray nozzles (71) are higher than the intersection points of the spray paths of all the inclined upper powder spraying pipes (8); the inclined lower spraying pipe (7) comprises an inclined lower spraying high pipe (72) and an inclined lower spraying low pipe (73), the inclined lower spraying high pipe (72) is higher than the inclined lower spraying low pipe (73), the number of the inclined lower spraying high pipes (72) is at least two, and the number of the inclined lower spraying low pipes (73) is also at least two;
the negative fog nozzle (621) sprays negative fog, and the solute of the negative fog is anionic polyelectrolyte;
the inclined lower spray opening (71) sprays positive water mist, and the solute of the positive water mist is cationic polyelectrolyte.
2. The device for manufacturing the adsorption antibacterial non-woven fabric for the medical protective clothing according to claim 1, is characterized in that: the adjacent inclined lower spraying high pipe (72) and the inclined lower spraying low pipe (73) are parallel to each other.
3. The device for manufacturing the adsorption antibacterial non-woven fabric for the medical protective clothing according to claim 1, is characterized in that: the diameter of the inclined lower spraying high pipes (72) is smaller than that of the inclined lower spraying low pipes (73), all the inclined lower spraying high pipes (72) are uniformly arranged along the same circumference, and all the inclined lower spraying low pipes (73) are uniformly arranged along the same circumference.
4. The device for manufacturing the adsorption antibacterial non-woven fabric for the medical protective clothing according to claim 1, is characterized in that: an inclined upper arc piece (82) and an inclined lower arc piece (83) are arranged inside the inclined upper powder spraying pipe (8), the lower ends of the inclined upper arc piece (82) and the inclined lower arc piece (83) are connected with the pipe wall of the inclined upper powder spraying pipe (8), and the high ends of the inclined upper arc piece (82) and the inclined lower arc piece (83) extend upwards towards the inclined upper powder spraying port (81).
5. The device for manufacturing the adsorption antibacterial non-woven fabric for the medical protective clothing according to claim 1, is characterized in that: the cross section of the cooling cavity (21) is rectangular, the cross section of the drafting cavity (31) is trapezoidal with a narrow top and a wide bottom, and the top of the cross section of the drafting cavity (31) is narrower than the bottom of the cross section of the cooling cavity (21).
6. The device for manufacturing the adsorption antibacterial non-woven fabric for the medical protective clothing according to claim 1, is characterized in that:
an exhaust port 11 communicated with the cooling cavity (21) is formed in the spinneret plate (1), and the top of the spinneret plate (1) is communicated with the output end of the screw extruder (13) through a metering pump (12);
the conveying belt (4) is of an annular structure, four corners of the conveying belt (4) are respectively wound around the side walls of one conveying roller (41), and all the conveying rollers (41) are enclosed in the conveying belt (4).
7. A manufacturing process of an adsorption antibacterial non-woven fabric for medical protective clothing is characterized in that: the manufacturing process is carried out by adopting the manufacturing device of the medical protective clothing adsorption antibacterial non-woven fabric in claim 1 or 2;
the manufacturing process comprises the following steps: firstly, a superposed body is conveyed to a conveying belt (4) from a material section (511), the superposed body comprises a melt-blown fiber web (52) and a first spun-bonded fiber web (51) which are superposed up and down, then the superposed body is conveyed to a laying section (531) by the conveying belt (4), then a second spun-bonded fiber web (53) is laid on the top of the melt-blown fiber web (52) by a drafting cavity (31) to form an SMS fiber web (5), then the SMS fiber web (5) is conveyed to a film forming section (61) by the conveying belt (4), and then an anionic water mist is sprayed to the top of the second spun-bonded fiber web (53) by an anionic water mist nozzle (621) to obtain the adsorption antibacterial non-woven fabric (6), wherein the solute of the anionic water mist is anionic polyelectrolyte;
the fiber filaments in the second spun-bonded fiber web (53) are obtained after fibers sprayed by a spinneret plate (1) sequentially pass through a cooling cavity (21) and a drafting cavity (31), in the process that the fibers sprayed by the spinneret plate (1) pass through the drafting cavity (31), a downward inclined spray opening (71) sprays positive water mist into the drafting cavity (31), the solute of the positive water mist is cationic polyelectrolyte, and meanwhile, an upward inclined spray opening (81) sprays nano bamboo charcoal powder into the drafting cavity (31).
8. The manufacturing process of the medical protective clothing adsorption antibacterial non-woven fabric according to claim 7 is characterized in that: the cationic polyelectrolyte is any one or any mixture of sodium alginate, hyaluronic acid, polyacrylic acid, polystyrene sulfonic acid, polyvinyl sulfonic acid and polyvinyl phosphoric acid;
the anion polyelectrolyte is any one or any mixture of polypropylene hydrochloride, chitosan, polydivinyl propyl dimethyl ammonium chloride, polyethyleneimine, polyquaternary ammonium salt and polyvinyl pyridine.
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