CN213861162U - Degradable antibacterial hot-rolled non-woven fabric - Google Patents
Degradable antibacterial hot-rolled non-woven fabric Download PDFInfo
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- CN213861162U CN213861162U CN202022173665.6U CN202022173665U CN213861162U CN 213861162 U CN213861162 U CN 213861162U CN 202022173665 U CN202022173665 U CN 202022173665U CN 213861162 U CN213861162 U CN 213861162U
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- polylactic acid
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Abstract
The utility model discloses a degradable antibacterial hot-rolled non-woven fabric, which is formed by bonding a hot-rolled non-woven fabric layer, an antibacterial layer and a degradable spun-bonded non-woven fabric through a hot rolling process; the raw material used by the hot-rolled non-woven fabric layer is bi-component polylactic acid fiber; the antibacterial layer comprises a first polylactic acid fiber net, a composite nano fiber net and a second polylactic acid fiber net; the first polylactic acid fiber net is composed of chitosan polyethylene glycol modified polycaprolactone/modified lactic acid fiber, and the composite nano fiber net is composed of polybutylene succinate/dopamine-nano silver composite nano fiber; the second polylactic acid fiber net is composed of polylactic acid nano fibers which are stacked on the surface of the composite nano fiber net by adopting electrostatic spinning equipment. The polylactic acid fiber is used on the side contacting with the skin of a user, and has the properties of skin-friendly, bacteriostasis and degradability. The antibacterial layer is light and soft, has a porous structure and good air permeability, and the surface of the fiber contains a large number of hydrophilic groups and has excellent moisture absorption performance.
Description
Technical Field
The utility model belongs to the technical field of the hot rolling non-woven fabrics technique and specifically relates to an antibiotic hot rolling non-woven fabrics of degradable.
Background
The non-woven fabric product has the advantages of rich color, brightness, fashionability, environmental protection, wide application, elegant appearance, various patterns and styles, light weight, environmental protection and recycling, and is internationally recognized as an environmental protection product for protecting the earth ecology. The product is suitable for industries such as agricultural films, shoemaking, leather making, mattresses, primary and secondary quilts, decoration, chemical engineering, printing, automobiles, building materials, furniture and the like, and industries such as clothing linings, medical and sanitary disposable operating gowns, masks, hats, bed sheets, hotel disposable tablecloths, beauty treatment, saunas and even modern fashionable gift bags, fine product bags, advertisement bags and the like.
The non-woven fabrics used by the prior disposable medical and health products all take polyolefin resin as a basic raw material, the degradation time of the non-woven fabrics in natural environment is hundreds of years, and the non-woven fabrics cause serious pollution to the environment. In addition, most of the existing non-woven fabrics for medical care and hygiene are easy to adhere to bacteria, have no antibacterial property or weak antibacterial ability, are easy to cause secondary pollution and cross infection when being stored or used improperly, and threaten the health of users. And the non-woven fabric with the antibacterial performance influences the skin of a user.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an antibiotic hot rolling non-woven fabrics of degradable has antibacterial antibiotic function to parent's skin degradable.
In order to solve the technical problem, the purpose of the utility model is to realize like this:
the utility model relates to a degradable antibacterial hot-rolled non-woven fabric, which is formed by bonding a hot-rolled non-woven fabric layer, an antibacterial layer and a degradable spun-bonded non-woven fabric through a hot rolling process; the raw material used by the hot-rolled non-woven fabric layer is bi-component polylactic acid fiber; the antibacterial layer comprises a first polylactic acid fiber net, a composite nano fiber net and a second polylactic acid fiber net; the first polylactic acid fiber net is composed of chitosan polyethylene glycol modified polycaprolactone/modified lactic acid fiber, and the composite nano fiber net is composed of polybutylene succinate/dopamine-nano silver composite nano fiber; the second polylactic acid fiber net is composed of polylactic acid nano fibers stacked on the surface of the composite nano fiber net by adopting electrostatic spinning equipment.
On the basis of the above scheme and as a preferable scheme of the scheme: the degradable spunbonded nonwoven fabric is degradable polypropylene fiber spunbonded nonwoven fabric.
On the basis of the above scheme and as a preferable scheme of the scheme: the diameter of the nano silver particles is 20-50 nm.
On the basis of the above scheme and as a preferable scheme of the scheme: the bicomponent polylactic acid fiber is in a sheath-core type, the sheath layer is low-melting-point polylactic acid, and the core layer is high-melting-point polylactic acid.
On the basis of the above scheme and as a preferable scheme of the scheme: the bicomponent polylactic acid fiber is a parallel structure consisting of low-melting-point polylactic acid and high-melting-point polylactic acid.
The utility model has the advantages that: the utility model relates to an antibiotic hot rolling non-woven fabrics of degradable uses polylactic acid fibre with one side that user's skin contacted, has the antibacterial degradable nature of parent's skin. The antibacterial layer is light and soft, has a porous structure and good air permeability, and the surface of the fiber contains a large number of hydrophilic groups and has excellent moisture absorption performance. The chitosan polyethylene glycol coating layer modified on the outer surface has antibacterial adhesion and bactericidal performance, the diameter of nano-silver particles contained in the inner layer is 20-50nm, and the nano-silver particles are uniformly distributed in the non-woven fabric, so that the effects of quick sterilization and long-acting bacteriostasis can be exerted, and the chitosan polyethylene glycol coating layer has a good application prospect in the field of medical treatment and health.
Drawings
FIG. 1 is a schematic view of a nonwoven fabric according to an embodiment;
FIG. 2 is a schematic structural view of a nonwoven fabric according to a second embodiment;
fig. 3 is a schematic structural view of a nonwoven fabric according to a third embodiment.
The designations in the figures illustrate the following: 1-hot rolling a non-woven fabric layer; 11-well; 2-an antibacterial layer; 21-a first polylactic acid web; 22-a composite nanofiber web; 23-a second polylactic acid web; 3-degradable anti-sticking non-woven fabric; 4-pattern layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example one
This embodiment will be described in detail with reference to fig. 1. The degradable antibacterial hot-rolled non-woven fabric according to the embodiment is formed by bonding a hot-rolled non-woven fabric layer 1, an antibacterial layer 2 and a degradable spun-bonded non-woven fabric 3 through a hot rolling process.
The raw material used by the hot-rolled non-woven fabric layer 1 is bi-component polylactic acid fiber. The polylactic acid fiber is a novel green environment-friendly high polymer material which is obtained by using starch in some plants such as corn, wheat, cassava and the like as raw materials and using a bacterial fermentation or chemical synthesis method, the raw materials are sufficient and renewable, the production process is pollution-free, and the product is biodegradable. Specifically, the bicomponent polylactic acid fiber is in a sheath-core type or a parallel type. In this embodiment, a sheath-core type is selected, in which the sheath layer of the sheath-core type bi-component polylactic acid fiber is low-melting polylactic acid fiber, and the core layer is high-melting polylactic acid fiber. The main low melting point polylactic acid fiber of cortex can be melted under the effect of hot rolling due to the lower melting point, so that the adjacent fibers can be bonded and fixed to form the non-woven fabric.
The antibiotic layer 2 includes a first polylactic acid fiber web 21, a composite nanofiber web 22, and a second polylactic acid fiber web 23. The first polylactic acid fiber web 21 is adjacent to the hot-rolled nonwoven fabric layer 1, and the second polylactic acid fiber web 23 is adjacent to the degradable spunbonded nonwoven fabric 3.
The first polylactic acid fiber net 21 is composed of polycaprolactone/modified lactic acid fibers modified by chitosan polyethylene glycol. Mixing polycaprolactone and modified polylactic acid in a mass ratio of 1:1 in an open mill, mixing for 10min at 160 ℃ to obtain a flaky blend, and crushing the flaky blend into particles; the blend particles are sucked by a suction machine and guided into a heating device for heating, and the fiber polymer in a molten state is obtained; pressurizing and spinning the fiber polymer through an extruder, stretching the spun yarn through a stretcher to form a fiber drawn material, and guiding the fiber drawn material to a web former to obtain a polycaprolactone/modified polylactic acid fiber web; and mixing chitosan and polyethylene glycol according to the mass ratio of 1:1, dissolving in 1% diluted acetic acid solution, stirring for dissolving, standing for defoaming to obtain a chitosan polyethylene glycol solution, immersing the polycaprolactone/modified polylactic acid fiber net in the chitosan polyethylene glycol solution at a bath ratio of 1:40, performing ultrasonic treatment for 20min, washing with cold water, and drying to obtain the chitosan polyethylene glycol modified polycaprolactone/modified polylactic acid fiber net.
The composite nanofiber web 22 is composed of polybutylene succinate/dopamine-nanosilver composite nanofibers. Dissolving polybutylene succinate in chloroform to prepare a spinning solution, preparing a polybutylene succinate fiber net through electrostatic spinning, and vacuumizing to remove residual solvent; and then, immersing the poly (butylene succinate) fiber net into a dopamine Tris HCl buffer solution, magnetically stirring, washing with ultrapure water after the reaction is finished to obtain a poly (butylene succinate)/dopamine fiber net, immersing the poly (butylene succinate)/dopamine in a silver nitrate solution, magnetically stirring, and washing with ultrapure water after the reaction is finished to obtain the poly (butylene succinate)/dopamine-nano silver composite nano-fiber net. The diameter of the nano silver particles is 20-50 nm.
The second polylactic acid fiber web 23 is composed of polylactic acid nanofibers deposited on the surface of the composite nanofiber web 22 by using an electrospinning device. Specifically, the polylactic acid electrostatic spinning solution is sprayed on the surface of the composite nanofiber web 22 by using electrostatic spinning equipment. The polylactic acid fiber is accelerated and attenuated in an electrostatic field to form the polylactic acid nanofiber.
Further, in the present embodiment, the degradable spunbonded nonwoven 3 is selected to be a degradable polypropylene fiber spunbonded nonwoven.
Example two
This embodiment will be described in detail with reference to fig. 2. The present embodiment relates to a degradable antibacterial hot-rolled nonwoven fabric, which is different from the first embodiment in that: the bicomponent polylactic acid fiber used in the hot-rolled non-woven fabric layer 1 is a side-by-side structure composed of low-melting-point polylactic acid and high-melting-point polylactic acid.
Another difference is that the hot-rolled nonwoven layer 1 is provided with holes 11, and the holes 11 penetrate the whole hot-rolled nonwoven layer. Preferably, the hole 11 is a tapered hole. Or may be cylindrical holes.
EXAMPLE III
This embodiment will be described in detail with reference to fig. 3. The difference between this embodiment and the second embodiment is that a pattern layer 4 is provided on the surface of the degradable spunbonded nonwoven fabric 3, and the pattern is printed on the surface of the degradable spunbonded nonwoven fabric 3 by printing.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. A degradable antibacterial hot-rolled non-woven fabric is characterized in that the degradable antibacterial hot-rolled non-woven fabric is formed by bonding a hot-rolled non-woven fabric layer (1), an antibacterial layer (2) and a degradable spun-bonded non-woven fabric (3) through a hot-rolling process; the raw material used by the hot-rolled non-woven fabric layer (1) is bi-component polylactic acid fiber; the antibacterial layer (2) comprises a first polylactic acid fiber net (21), a composite nano fiber net (22) and a second polylactic acid fiber net (23); the first polylactic acid fiber net (21) is composed of chitosan polyethylene glycol modified polycaprolactone/modified lactic acid fibers, and the composite nano fiber net (22) is composed of polybutylene succinate/dopamine-nano silver composite nano fibers; the second polylactic acid fiber net (23) is composed of polylactic acid nano fibers which are stacked on the surface of the composite nano fiber net (22) by adopting electrostatic spinning equipment.
2. The degradable antibacterial hot-rolled nonwoven fabric according to claim 1, wherein the degradable spunbond nonwoven fabric (3) is a degradable polypropylene fiber spunbond nonwoven fabric.
3. The degradable antibacterial hot-rolled non-woven fabric according to claim 1, wherein the nano silver particles have a diameter of 20 to 50 nm.
4. The degradable antibacterial hot-rolled non-woven fabric according to claim 1, wherein the bi-component polylactic acid fiber is of a sheath-core type, the sheath layer is of low-melting-point polylactic acid, and the core layer is of high-melting-point polylactic acid.
5. The degradable antibacterial hot-rolled non-woven fabric according to claim 1, wherein the bi-component polylactic acid fiber is a side-by-side structure composed of a low-melting-point polylactic acid and a high-melting-point polylactic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202022173665.6U CN213861162U (en) | 2020-09-28 | 2020-09-28 | Degradable antibacterial hot-rolled non-woven fabric |
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| CN202022173665.6U CN213861162U (en) | 2020-09-28 | 2020-09-28 | Degradable antibacterial hot-rolled non-woven fabric |
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| CN213861162U true CN213861162U (en) | 2021-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164660A (en) * | 2021-12-13 | 2022-03-11 | 山东华业无纺布有限公司 | Preparation method of antibacterial degradable environment-friendly non-woven fabric |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164660A (en) * | 2021-12-13 | 2022-03-11 | 山东华业无纺布有限公司 | Preparation method of antibacterial degradable environment-friendly non-woven fabric |
| CN114164660B (en) * | 2021-12-13 | 2023-08-29 | 山东华业无纺布有限公司 | Preparation method of antibacterial degradable environment-friendly non-woven fabric |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A degradable antibacterial hot-rolled non-woven fabric Effective date of registration: 20220902 Granted publication date: 20210803 Pledgee: Bank of Jiaxing Nanhu branch of Limited by Share Ltd Pledgor: Jiaxing Shenxin non woven fabric Co.,Ltd. Registration number: Y2022980014333 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |