CN113201860A - SMS composite system for increasing antibacterial negative ion function of non-woven fabric and process thereof - Google Patents
SMS composite system for increasing antibacterial negative ion function of non-woven fabric and process thereof Download PDFInfo
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- CN113201860A CN113201860A CN202110367893.3A CN202110367893A CN113201860A CN 113201860 A CN113201860 A CN 113201860A CN 202110367893 A CN202110367893 A CN 202110367893A CN 113201860 A CN113201860 A CN 113201860A
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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
- 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
- D04H1/559—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 the fibres being within layered webs
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- 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
- D04H1/413—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 containing granules other than absorbent substances
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
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- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration, distillation
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/80—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with boron or compounds thereof, e.g. borides
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- 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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- 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
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- 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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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1671—Resistance to bacteria, mildew, mould, fungi
Abstract
An SMS composite system for increasing the antibacterial negative ion function of non-woven fabric is characterized in that a first spun-bonded fiber web is wound on the side wall of a first spun-bonded roller in the SMS composite system, a first melt-blown fiber web is wound on the first melt-blown roller, a second spun-bonded fiber web is wound on the side wall of a second spun-bonded roller, the part, located between the two spun-bonded rollers and the three spun-bonded rollers, of the second spun-bonded fiber web is in an inclined posture, a positive liquid sprayer is arranged right below the part, the positive liquid sprayer is arranged close to the three spun-bonded rollers, a negative liquid sprayer is arranged right above primary fabric, and a negative mist outlet of the negative liquid sprayer is located at the bottom of the negative liquid sprayer; the middle part of the spunbond two-roller is provided with a spunbond rotating shaft, a spunbond inner cavity is arranged at the part surrounding the spunbond rotating shaft in the spunbond two-roller, and the side wall of the spunbond two-roller is provided with a dusting gap communicated with the spunbond inner cavity. 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 releasing negative ions.
Description
Technical Field
The invention relates to a preparation process of non-woven fabric for medical protective clothing, belongs to the technical field of functional non-woven fabric preparation, and particularly relates to an SMS composite system for increasing the antibacterial negative ion function of the non-woven fabric and a process thereof.
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 anion function, to the SMS-based composite material on the basis of the failure to realize the antibacterial function, thereby impairing the market efficiency.
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 negative ion function in the prior art, and provides an SMS composite system which is simple in production, is not limited by the surface structure modification process, can increase the antibacterial negative ion function of a non-woven fabric and has the negative ion function, and a process thereof.
In order to achieve the above purpose, the technical solution of the invention is as follows: an SMS composite system for increasing the antibacterial negative ion function of non-woven fabric comprises a first spunbonded roll, a first melt-blown roll and a second spunbonded roll, wherein a first spunbonded web is wound on the side wall of the first spunbonded roll and passes through the first spunbonded roll, a melt-blown web is wound on the first melt-blown roll, a second spunbonded web is wound on the side wall of the second spunbonded roll and passes through the second spunbonded web, and the second spunbonded web, the melt-blown web and the first spunbonded web are sequentially superposed into primary fabric from top to bottom;
the SMS composite system further comprises a spun-bonded three-roller, a positive liquid sprayer and a negative liquid sprayer, wherein the spun-bonded three-roller is positioned at the upper right of the spun-bonded two-roller, a part, positioned between the spun-bonded two-roller and the spun-bonded three-roller, on the second spun-bonded web is in an inclined posture, the positive liquid sprayer is arranged right below the part, a positive mist outlet of the positive liquid sprayer is positioned at the top of the positive liquid sprayer, and the positive liquid sprayer is arranged close to the spun-bonded three-roller;
a negative liquid sprayer is arranged right above the primary cloth, and a negative fog outlet of the negative liquid sprayer is positioned at the bottom of the negative liquid sprayer;
the middle part of the spunbond two-roller is provided with a spunbond rotating shaft, a spunbond inner cavity is arranged at the part surrounding the spunbond rotating shaft in the spunbond two-roller, and the side wall of the spunbond two-roller is provided with a dusting gap communicated with the spunbond inner cavity.
At least two positive liquid spray pipes are arranged in the positive liquid sprayer, pipe outlets of the positive liquid spray pipes are in an inclined upward structure relative to the second spun-bonded fiber web at the top of the positive liquid spray pipes, and all the pipe outlets form a positive mist outlet.
One angle of the web roll and a second angle of the web roll are respectively clamped between the part of the second spun-bonded web between the two spun-bonded rolls and the three spun-bonded rolls and the central axes of the two spun-bonded rolls and the central axes of the three spun-bonded rolls, and the second angle of the web roll is an acute angle.
A liquid receiving box is arranged below the part, between the two spunbond rollers and the three spunbond rollers, of the second spunbond fiber web, a liquid receiving port of the liquid receiving box is of an inclined opening structure, and the liquid receiving port is arranged opposite to the second spunbond fiber web;
the positive liquid sprayer is positioned between the second spun-bonded fiber net and the liquid receiving box.
The liquid receiving box comprises an extension cylinder and a half balloon, the extension cylinder is of a truncated cone structure with a wide upper part and a narrow lower part, the top of the extension cylinder is a liquid receiving opening, the bottom of the extension cylinder is connected with the top of the half balloon, and the inner cavity of the extension cylinder is communicated with the inner cavity of the half balloon.
The side wall of the extension cylinder is of an inwards concave structure, the left end of the side wall of the extension cylinder extends to a position between the second spun-bonded fiber net and the third spun-bonded roller, and the right end of the side wall of the extension cylinder extends to a position between the second spun-bonded fiber net and the third spun-bonded roller.
The inner cavity of the spun-bonded comprises an upper powder falling cavity, a middle ring shaft cavity and a lower powder falling cavity which are communicated in sequence, the middle part of the middle ring shaft cavity penetrates through the spun-bonded rotating shaft, the outer cavity surface of the upper powder falling cavity is contacted with the inner side surface of an upper powder scattering area arranged on the side periphery of the two spun-bonded rolls, the outer cavity surface of the lower powder falling cavity is contacted with the inner side surface of a lower powder scattering area arranged on the side periphery of the two spun-bonded rolls, an upper sub-gap communicated with the upper powder falling cavity is formed in the upper powder scattering area, a lower sub-gap communicated with the lower powder falling cavity is formed in the lower powder scattering area, and the upper sub-gap and the lower sub-gap form a powder scattering gap.
The upper sub-gap and the lower sub-gap have the same structure and comprise a left oblique gap channel and a right oblique gap channel, and the adjacent left oblique gap channel and the right oblique gap channel are mutually crossed; the number of the left oblique channels is more than one, and the number of the right oblique channels is more than one.
The use process of the SMS composite system for increasing the antibacterial negative ion function of the non-woven fabric comprises the following steps:
the first spunbond fiber web, the meltblown fiber web, the second spunbond fiber web and the primary fabric move forward to the right continuously while being overlapped;
before the second spunbonded web is superposed with the melt-blown web, when the second spunbonded web moves between the spunbonded two rollers and the spunbonded three rollers, a positive fog outlet of a positive liquid sprayer sprays positive water fog to the second spunbonded web above the positive liquid sprayer, the solute of the positive water fog is cationic polyelectrolyte, and when the second spunbonded web moves below the spunbonded two rollers, nano tourmaline powder is scattered on the second spunbonded web by a powder scattering gap;
after the primary cloth is formed, in the process that the primary cloth moves forward to the right, an anionic water mist is sprayed from an anionic water mist outlet of an anionic water mist sprayer to the top of the primary cloth, namely the top of the second spun-bonded fiber net, so as to obtain the antibacterial anion non-woven fabric, wherein the solute of the anionic water mist is anionic polyelectrolyte.
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. before a second spunbonded fiber net and a melt-blown fiber net are superposed, a positive fog is sprayed from a positive fog outlet of a positive liquid sprayer to the second spunbonded fiber net positioned above the positive fog, the solute of the positive fog is a positive ion polyelectrolyte, nano tourmaline powder is scattered onto the second spunbonded fiber net from a powder scattering gap, then after a primary cloth is formed, a negative fog outlet of a negative liquid sprayer is sprayed to the top of the primary cloth, namely the top of the second spunbonded fiber net to obtain the antibacterial negative ion nonwoven cloth, the solute of the negative water fog is a negative ion polyelectrolyte, and the positive and negative ion polyelectrolytes are combined with each other to form a composite film, wherein the design has the following advantages: 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 tourmaline powder has the function of releasing negative ions, so that the product has dual functions of antibiosis and releasing negative ions due to the addition of the nano tourmaline 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 releasing negative ions.
2. The invention relates to an SMS composite system for increasing antibacterial negative ion function of non-woven fabric and a process thereof, wherein a part of a second spun-bonded fiber web between a spun-bonded two roller and a spun-bonded three roller is in an inclined posture, a positive liquid sprayer is arranged right below the part, when the SMS composite system is applied, the second spun-bonded fiber web runs obliquely leftwards and downwards, the positive liquid sprayer sprays positive water mist obliquely towards the upper right to realize basic coating of cationic polyelectrolyte on the second spun-bonded fiber web, meanwhile, when the spraying amount of the positive water mist is large, the redundant water mist can move along the motion direction of the second spun-bonded fiber web under the action of gravity to be repeatedly absorbed by the second spun-bonded fiber web, and if the spraying amount of the water mist is large and the absorption is not enough, liquid drops formed by the redundant water mist can fall under the action of the gravity and cannot be accumulated on the second spun-bonded fiber web to influence subsequent positive ion, The quality of the composite membrane is damaged due to the combination of the anionic polyelectrolyte, and the effect is better particularly when the cationic sprayer is arranged close to the three spunbond rollers. Therefore, the invention not only can improve the utilization rate of the cationic polyelectrolyte, but also can avoid the formation of liquid drops and ensure the quality of the composite membrane.
3. The invention relates to a SMS composite system for increasing the antibacterial negative ion function of non-woven fabrics and a process thereof, wherein a liquid receiving box is arranged below the part between a spun-bonded two-roller and a spun-bonded three-roller on a spun-bonded web II, a liquid receiving port of the liquid receiving box is of an inclined opening structure, the design can recover liquid drops formed by redundant cationic water mist, the production environment can be prevented from being polluted, the utilization rate of cationic polyelectrolyte can be improved, in addition, an extension cylinder in the liquid receiving box can guide the liquid drops, all the falling liquid drops can be ensured to be recovered without entering the next powdering link, particularly when the side wall of the extension cylinder is of a concave structure, the left end and the right end of the side wall of the extension cylinder respectively extend to the space between the spun-bonded web II and the spun-bonded three-roller or the space between the spun-bonded web II and the spun-bonded two-roller, the effect is better, in addition, according to the amount of the recovered liquid, the speed/angle of the spraying operation, or output of the second spunbond web, is adjusted to improve the water mist absorption, e.g., uniformity. Therefore, the invention has better recovery effect on falling liquid drops and stronger adjustability.
4. The invention relates to a SMS composite system for increasing the antibacterial negative ion function of non-woven fabric and a process thereof, wherein a dusting gap is arranged in a spunbonded inner cavity, a spunbonded rotating shaft drives a spunbonded two-roller to rotate so as to drive a second spunbonded fiber net to reverse and move forwards, the spunbonded inner cavity and the dusting gap also rotate together in the rotating process of the spunbonded two-roller, when the dusting gap is rotated to the upper part of the second spunbonded fiber net, nano tourmaline powder is scattered out of the dusting gap so as to fall on the second spunbonded fiber net, and then the nano tourmaline powder is retained on the surface of the second spunbonded fiber net or falls into the inner part of the second spunbonded fiber net, and then when cation polyelectrolyte solution and anion polyelectrolyte solution are combined with each other to generate a composite film, the composite film has a fixing effect on the nano tourmaline powder, thereby greatly reducing the falling of the nano tourmaline powder in the subsequent use and ensuring the normal realization of the negative ion releasing function, particularly when the dusting gap comprises an upper sub gap and a lower sub gap, and the upper sub-gap and the lower sub-gap comprise the left inclined gap channel and the right inclined gap channel which are intersected, the effect is better. Therefore, the invention has better curing effect on the nano tourmaline powder and is beneficial to realizing the function of releasing negative ions.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the anolyte sprayer of fig. 1.
FIG. 3 is a schematic view of the liquid receiving cassette of FIG. 1.
Fig. 4 is a bottom view of the bottom side gusset of the spunbond two roll of fig. 1.
Figure 5 is a top view of the top side wrap of the spunbond two roll of figure 1.
In the figure: the anti-bacterial and anti-bacterial fabric comprises a primary fabric 1, an anti-bacterial negative-ion non-woven fabric 11, a first spunbonded roll 2, a first spunbonded web 21, a first meltblown roll 3, a meltblown web 31, a second spunbonded web 4, a second spunbonded web 41, a first net roll corner 411, a second net roll corner 412, a spunbonded rotating shaft 42, a spunbonded inner cavity 43, an upper powder falling cavity 431, a middle ring shaft cavity 432, a powder falling cavity 433, a powder scattering gap 44, an upper powder scattering area 45, an upper powder scattering gap 451, a lower powder scattering area 46, a lower powder scattering gap 461, a left inclined gap 47, a right inclined gap 48, a spunbonded three-roll 5, an anode spray sprayer 6, an anode spray outlet 61, an anode spray pipe 62, a pipe outlet 63, a cathode spray sprayer 7, a cathode spray outlet 71, a liquid receiving box 8, a liquid receiving port 81, an extension cylinder 82, a half-ball bag 83, a suction roll device 9 and a hot rolling group 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, an SMS composite system for increasing an antibacterial negative ion function of a nonwoven fabric comprises a first spunbond roller 2, a first meltblown roller 3 and a second spunbond roller 4, wherein a first spunbond web 21 is wound around the side wall of the first spunbond roller 2, a meltblown web 31 is wound around the first meltblown roller 3, a second spunbond web 41 is wound around the side wall of the second spunbond roller 4, and the second spunbond web 41, the meltblown web 31 and the first spunbond web 21 are sequentially superposed into a primary fabric 1 from top to bottom;
the SMS composite system further comprises a three-roller spunbond 5, an anode spray sprayer 6 and a cathode spray sprayer 7, wherein the three-roller spunbond 5 is positioned at the upper right of the two-roller spunbond 4, a part, positioned between the two-roller spunbond 4 and the three-roller spunbond 5, on the second spunbond 41 is in an inclined posture, the anode spray sprayer 6 is arranged right below the part, an anode spray outlet 61 of the anode spray sprayer 6 is positioned at the top of the anode spray sprayer 6, and the anode spray sprayer 6 is arranged close to the three-roller spunbond 5;
a yin liquid sprayer 7 is arranged right above the primary cloth 1, and a yin fog outlet 71 of the yin liquid sprayer 7 is positioned at the bottom of the yin liquid sprayer 7;
the middle part of the spunbonded two-roll 4 is provided with a spunbonded rotating shaft 42, the part of the spunbonded two-roll 4 surrounding the spunbonded rotating shaft 42 is provided with a spunbonded inner cavity 43, and the side wall of the spunbonded two-roll 4 is provided with a dusting gap 44 communicated with the spunbonded inner cavity 43.
At least two male liquid spray pipes 62 are arranged in the male liquid sprayer 6, pipe outlets 63 of the male liquid spray pipes 62 are in an inclined upward structure relative to the second spunbonded web 41 at the top of the male liquid spray pipes, and all the pipe outlets 63 form a male mist outlet 61.
A web roll corner 411 and a web roll corner 412 are respectively clamped between the part of the second spun-bonded web 41 between the two spun-bonded rolls 4 and the three spun-bonded rolls 5 and the central axis of the two spun-bonded rolls 4 and the central axis of the three spun-bonded rolls 5, and the web roll corners 412 are acute angles.
A liquid receiving box 8 is arranged below the part, between the two spunbond rollers 4 and the three spunbond rollers 5, of the second spunbond web 41, a liquid receiving port 81 of the liquid receiving box 8 is of an inclined opening structure, and the liquid receiving port 81 is arranged opposite to the second spunbond web 41;
the positive liquid sprayer 6 is positioned between the second spunbonded web 41 and the liquid receiving box 8.
The liquid receiving box 8 comprises an extension cylinder 82 and a hemispherical sac 83, the extension cylinder 82 is of a truncated cone structure with a wide upper part and a narrow lower part, the top of the extension cylinder 82 is provided with a liquid receiving port 81, the bottom of the extension cylinder 82 is connected with the top of the hemispherical sac 83, and the inner cavity of the extension cylinder 82 is communicated with the inner cavity of the hemispherical sac 83.
The side wall of the extension cylinder 82 is of an inward concave structure, the left end of the side wall of the extension cylinder 82 extends to a position between the second spun-bonded fiber web 41 and the spun-bonded three-roller 5, and the right end of the side wall of the extension cylinder 82 extends to a position between the second spun-bonded fiber web 41 and the spun-bonded two-roller 4.
The spunbonded inner cavity 43 comprises an upper powder falling cavity 431, a middle ring shaft cavity 432 and a powder falling cavity 433 which are sequentially communicated, the middle part of the middle ring shaft cavity 432 penetrates through the spunbonded rotating shaft 42, the outer cavity surface of the upper powder falling cavity 431 is contacted with the inner side surface of an upper powder scattering area 45 arranged on the side wall of the spunbonded two-roller 4, the outer cavity surface of the powder falling cavity 433 is contacted with the inner side surface of a lower powder scattering area 46 arranged on the side wall of the spunbonded two-roller 4, an upper sub-gap 451 communicated with the upper powder falling cavity 431 is arranged on the upper powder scattering area 45, a lower sub-gap 461 communicated with the powder falling cavity 433 is arranged on the lower powder scattering area 46, and the upper sub-gap 451 and the lower sub-gap 461 form a powder scattering gap 44.
The upper sub-gap 451 and the lower sub-gap 461 have the same structure, and both comprise a left oblique gap 47 and a right oblique gap 48, and the adjacent left oblique gap 47 and right oblique gap 48 are intersected with each other; the left oblique clearance channel 47 is more than one in number, and the right oblique clearance channel 48 is more than one in number.
The use process of the SMS composite system for increasing the antibacterial negative ion function of the non-woven fabric comprises the following steps:
firstly, superposing the meltblown fiber web 31 on the top of the first spunbonded fiber web 21, superposing the second spunbonded fiber web 41 on the top of the meltblown fiber web 31 to form a primary fabric 1, and continuously advancing the first spunbonded fiber web 21, the meltblown fiber web 31, the second spunbonded fiber web 41 and the primary fabric 1 to the right while superposing;
before the second spunbonded web 41 is superposed with the meltblown web 31, when the second spunbonded web 41 moves to a position between the spunbonded two-roll 4 and the spunbonded three-roll 5, a positive fog outlet 61 of a positive liquid sprayer 6 sprays positive fog to the second spunbonded web 41 positioned above the positive fog, the solute of the positive fog is cationic polyelectrolyte, and when the second spunbonded web 41 moves to a position below the spunbonded two-roll 4, the dusting gap 44 sprinkles nano tourmaline powder onto the second spunbonded web 41;
after the primary fabric 1 is formed, in the process that the primary fabric 1 moves forward to the right, the mist outlet 71 of the mist sprayer 7 sprays mist of the mist to the top of the primary fabric 1, namely the top of the second spun-bonded fiber net 41, so as to obtain the antibacterial anion non-woven fabric 11, wherein the solute of the mist is anion polyelectrolyte.
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 primary fabric 1 in the invention is the same as the existing SMS non-woven fabric in structure, and is a three-layer structure, and comprises a second spun-bonded fiber net 41, a melt-blown fiber net 31 and a first spun-bonded fiber net 21 from top to bottom in sequence.
In the invention, preferably, an air suction device 9 is arranged above the part, positioned between the two spunbond rolls 4 and the three spunbond rolls 5, of the second spunbond web 41, and the air suction device 9 is arranged opposite to the positive liquid sprayer 6 through the second spunbond web 41.
The antibacterial anion non-woven fabric 11 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 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.
Example 1:
referring to fig. 1-5, an SMS composite system for increasing an antibacterial negative ion function of a nonwoven fabric comprises a first spunbond roller 2, a first meltblown roller 3 and a second spunbond roller 4, wherein a first spunbond web 21 is wound around the side wall of the first spunbond roller 2, a meltblown web 31 is wound around the first meltblown roller 3, a second spunbond web 41 is wound around the side wall of the second spunbond roller 4, and the second spunbond web 41, the meltblown web 31 and the first spunbond web 21 are sequentially superposed into a primary fabric 1 from top to bottom; the SMS composite system further comprises a three-roller spunbond 5, an anode spray sprayer 6 and a cathode spray sprayer 7, wherein the three-roller spunbond 5 is positioned at the upper right of the two-roller spunbond 4, a part, positioned between the two-roller spunbond 4 and the three-roller spunbond 5, on the second spunbond 41 is in an inclined posture, the anode spray sprayer 6 is arranged right below the part, an anode spray outlet 61 of the anode spray sprayer 6 is positioned at the top of the anode spray sprayer 6, and the anode spray sprayer 6 is arranged close to the three-roller spunbond 5; a yin liquid sprayer 7 is arranged right above the primary cloth 1, and a yin fog outlet 71 of the yin liquid sprayer 7 is positioned at the bottom of the yin liquid sprayer 7; the middle part of the spunbonded two-roll 4 is provided with a spunbonded rotating shaft 42, the part of the spunbonded two-roll 4 surrounding the spunbonded rotating shaft 42 is provided with a spunbonded inner cavity 43, and the side wall of the spunbonded two-roll 4 is provided with a dusting gap 44 communicated with the spunbonded inner cavity 43. Preferably, at least two male fluid nozzles 62 are arranged in the male fluid sprayer 6, the tube outlets 63 of the male fluid nozzles 62 are in an obliquely upward structure relative to the second spunbonded web 41 at the top of the male fluid nozzles, and all the tube outlets 63 form the male mist outlets 61.
The use process of the SMS composite system for increasing the antibacterial negative ion function of the non-woven fabric comprises the following steps: firstly, superposing the meltblown fiber web 31 on the top of the first spunbonded fiber web 21, superposing the second spunbonded fiber web 41 on the top of the meltblown fiber web 31 to form a primary fabric 1, and continuously advancing the first spunbonded fiber web 21, the meltblown fiber web 31, the second spunbonded fiber web 41 and the primary fabric 1 to the right while superposing; before the second spunbonded web 41 is superposed with the meltblown web 31, when the second spunbonded web 41 moves to a position between the spunbonded two-roll 4 and the spunbonded three-roll 5, a positive fog outlet 61 of a positive liquid sprayer 6 sprays positive fog to the second spunbonded web 41 positioned above the positive fog, the solute of the positive fog is cationic polyelectrolyte, and when the second spunbonded web 41 moves to a position below the spunbonded two-roll 4, the dusting gap 44 sprinkles nano tourmaline powder onto the second spunbonded web 41; after the primary fabric 1 is formed, in the process that the primary fabric 1 moves forward to the right, the mist outlet 71 of the mist sprayer 7 sprays mist of the mist to the top of the primary fabric 1, namely the top of the second spun-bonded fiber net 41, so as to obtain the antibacterial anion non-woven fabric 11, wherein the solute of the mist is anion polyelectrolyte.
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:
a liquid receiving box 8 is arranged below the part, between the two spunbond rollers 4 and the three spunbond rollers 5, of the second spunbond web 41, a liquid receiving port 81 of the liquid receiving box 8 is of an inclined opening structure, and the liquid receiving port 81 is arranged opposite to the second spunbond web 41; the positive liquid sprayer 6 is positioned between the second spunbonded web 41 and the liquid receiving box 8. The liquid receiving box 8 comprises an extension cylinder 82 and a hemispherical sac 83, the extension cylinder 82 is of a truncated cone structure with a wide upper part and a narrow lower part, the top of the extension cylinder 82 is provided with a liquid receiving port 81, the bottom of the extension cylinder 82 is connected with the top of the hemispherical sac 83, and the inner cavity of the extension cylinder 82 is communicated with the inner cavity of the hemispherical sac 83. The side wall of the extension cylinder 82 is of an inward concave structure, the left end of the side wall of the extension cylinder 82 extends to a position between the second spun-bonded fiber web 41 and the spun-bonded three-roller 5, and the right end of the side wall of the extension cylinder 82 extends to a position between the second spun-bonded fiber web 41 and the spun-bonded two-roller 4.
Example 4:
the basic contents are the same as example 1, except that:
the spunbonded inner cavity 43 comprises an upper powder falling cavity 431, a middle ring shaft cavity 432 and a powder falling cavity 433 which are sequentially communicated, the middle part of the middle ring shaft cavity 432 penetrates through the spunbonded rotating shaft 42, the outer cavity surface of the upper powder falling cavity 431 is contacted with the inner side surface of an upper powder scattering area 45 arranged on the side wall of the spunbonded two-roller 4, the outer cavity surface of the powder falling cavity 433 is contacted with the inner side surface of a lower powder scattering area 46 arranged on the side wall of the spunbonded two-roller 4, an upper sub-gap 451 communicated with the upper powder falling cavity 431 is arranged on the upper powder scattering area 45, a lower sub-gap 461 communicated with the powder falling cavity 433 is arranged on the lower powder scattering area 46, and the upper sub-gap 451 and the lower sub-gap 461 form a powder scattering gap 44. The upper sub-gap 451 and the lower sub-gap 461 have the same structure, and both comprise a left oblique gap 47 and a right oblique gap 48, and the adjacent left oblique gap 47 and right oblique gap 48 are intersected with each other; the left oblique clearance channel 47 is more than one in number, and the right oblique clearance channel 48 is more than one in number.
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 (10)
1. The utility model provides an increase antibiotic anion function's of non-woven fabrics SMS combined system, includes a roller (2), a roller (3) of melt-blowing and spunbonded two roller (4), twine on the side wall of a roller (2) of spunbonded and cross and have a spunbonded web (21), twine on the roller (3) of melt-blowing and have a melt-blown fibre net (31), twine on the side wall of spunbonded two roller (4) and cross and have No. two spunbonded webs (41), No. two spunbonded web (41), melt-blown fibre net (31), a spunbonded web (21) superpose from top to bottom in proper order and are elementary cloth (1), its characterized in that:
the SMS composite system further comprises a three-roller spunbond (5), a positive liquid sprayer (6) and a negative liquid sprayer (7), wherein the three-roller spunbond (5) is positioned at the upper right of the two-roller spunbond (4), a part, positioned between the two-roller spunbond (4) and the three-roller spunbond (5), on the second spunbond web (41) is in an inclined posture, the positive liquid sprayer (6) is arranged right below the part, a positive mist outlet (61) of the positive liquid sprayer (6) is positioned at the top of the positive liquid sprayer (6), and the positive liquid sprayer (6) is arranged close to the three-roller spunbond (5);
a yin liquid sprayer (7) is arranged right above the primary cloth (1), and a yin fog outlet (71) of the yin liquid sprayer (7) is positioned at the bottom of the yin liquid sprayer (7);
the middle part of the spunbonded two-roller (4) is provided with a spunbonded rotating shaft (42), a spunbonded inner cavity (43) is arranged at the part surrounding the spunbonded rotating shaft (42) in the spunbonded two-roller (4), and powder scattering gaps (44) communicated with the spunbonded inner cavity (43) are arranged on the side walls of the spunbonded two-roller (4).
2. An SMS composite system for increasing the antibacterial negative ion function of non-woven fabric according to claim 1, wherein: at least two positive liquid spray pipes (62) are arranged in the positive liquid sprayer (6), pipe outlets (63) of the positive liquid spray pipes (62) are in an inclined upward structure relative to the second spunbonded web (41) at the top of the positive liquid spray pipes, and all the pipe outlets (63) form a positive mist outlet (61).
3. An SMS composite system for increasing the antibacterial negative ion function of non-woven fabrics according to claim 1 or 2, characterized in that: one net roller corner (411) and two net roller corners (412) are respectively clamped between the part of the second spun-bonded fiber net (41) between the two spun-bonded rollers (4) and the three spun-bonded rollers (5) and the central axis of the two spun-bonded rollers (4) and the central axis of the three spun-bonded rollers (5), and the two net roller corners (412) are acute angles.
4. An SMS composite system for increasing the antibacterial negative ion function of non-woven fabrics according to claim 1 or 2, characterized in that: a liquid receiving box (8) is arranged below the part, positioned between the two spunbond rollers (4) and the three spunbond rollers (5), of the second spunbond fiber web (41), a liquid receiving port (81) of the liquid receiving box (8) is of an inclined opening structure, and the liquid receiving port (81) is arranged opposite to the second spunbond fiber web (41);
the positive liquid sprayer (6) is positioned between the second spunbonded web (41) and the liquid receiving box (8).
5. An SMS composite system for increasing the antibacterial negative ion function of non-woven fabric according to claim 4, wherein: the liquid receiving box (8) comprises an extension cylinder (82) and a half balloon (83), the extension cylinder (82) is of a truncated cone structure with a wide upper part and a narrow lower part, the top of the extension cylinder (82) is provided with a liquid receiving port (81), the bottom of the extension cylinder (82) is connected with the top of the half balloon (83), and the inner cavity of the extension cylinder (82) is communicated with the inner cavity of the half balloon (83).
6. An SMS composite system for increasing the antibacterial negative ion function of non-woven fabric according to claim 5, wherein: the side wall of the extension cylinder (82) is of a concave structure, the left end of the side wall of the extension cylinder (82) extends to a position between the second spun-bonded fiber net (41) and the spun-bonded three-roller (5), and the right end of the side wall of the extension cylinder (82) extends to a position between the second spun-bonded fiber net (41) and the spun-bonded two-roller (4).
7. An SMS composite system for increasing the antibacterial negative ion function of non-woven fabrics according to claim 1 or 2, characterized in that: the spunbonded inner cavity (43) comprises an upper powder falling cavity (431), a middle ring shaft cavity (432) and a powder falling cavity (433) which are sequentially communicated, the middle part of the middle ring shaft cavity (432) penetrates through the spunbonded rotating shaft (42), the outer cavity surface of the upper powder falling cavity (431) is contacted with the inner side surface of an upper powder scattering area (45) arranged on the side wall of the spunbonded two-roller (4), the outer cavity surface of the powder falling cavity (433) is contacted with the inner side surface of a lower powder scattering area (46) arranged on the side wall of the spunbonded two-roller (4), an upper sub gap (451) communicated with the upper powder falling cavity (431) is arranged on the upper powder scattering area (45), a lower sub gap (461) communicated with the powder falling cavity (433) is arranged on the lower powder scattering area (46), and the upper sub gap (451) and the lower sub gap (461) form a powder scattering gap (44).
8. An SMS composite system for increasing the antibacterial negative ion function of non-woven fabric according to claim 7, wherein: the upper sub-gap (451) and the lower sub-gap (461) are consistent in structure and comprise a left inclined gap (47) and a right inclined gap (48), and the adjacent left inclined gap (47) and the right inclined gap (48) are mutually crossed; the number of the left oblique clearance channels (47) is more than one, and the number of the right oblique clearance channels (48) is more than one.
9. The use process of the SMS composite system for increasing the antibacterial negative ion function of the non-woven fabric, which is characterized in that: the using process comprises the following steps:
firstly, superposing a melt-blown fiber web (31) on the top of a first spun-bonded fiber web (21), then superposing a second spun-bonded fiber web (41) on the top of the melt-blown fiber web (31) to form a primary fabric (1), and continuously advancing the first spun-bonded fiber web (21), the melt-blown fiber web (31), the second spun-bonded fiber web (41) and the primary fabric (1) to the right while superposing;
before the second spunbonded web (41) is superposed with the meltblown web (31), when the second spunbonded web (41) moves to a position between the spunbonded two rollers (4) and the spunbonded three rollers (5), a positive fog outlet (61) of a positive liquid sprayer (6) sprays positive fog to the second spunbonded web (41) positioned above the positive fog, the solute of the positive fog is cationic polyelectrolyte, and when the second spunbonded web (41) moves to a position below the spunbonded two rollers (4), nano tourmaline powder is scattered on the second spunbonded web (41) by a dusting gap (44);
after the primary cloth (1) is formed, in the process that the primary cloth (1) moves forwards to the right, an anionic water mist is sprayed from an anionic water mist outlet (71) of a negative water mist sprayer (7) to the top of the primary cloth (1), namely the top of a second spun-bonded fiber net (41), so as to obtain the antibacterial anion non-woven fabric (11), and the solute of the anionic water mist is anionic polyelectrolyte.
10. The use process of the SMS composite system for increasing the antibacterial negative ion function of the non-woven fabric according to claim 9, 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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