CN217753049U - Multilayer gauze with antibacterial function - Google Patents
Multilayer gauze with antibacterial function Download PDFInfo
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- CN217753049U CN217753049U CN202221919511.XU CN202221919511U CN217753049U CN 217753049 U CN217753049 U CN 217753049U CN 202221919511 U CN202221919511 U CN 202221919511U CN 217753049 U CN217753049 U CN 217753049U
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Abstract
The utility model discloses a multilayer gauze with antibacterial function, which comprises an innermost skin-friendly breathable layer, a middle transition layer and an outer antibacterial functional layer, wherein the transition layer is bonded on the surface of the skin-friendly breathable layer, and the antibacterial functional layer comprises an antibacterial and antivirus layer, a cotton gauze layer and a wear-resistant layer; the antibacterial and antivirus layer is attached to the outer surface of the transition layer, and the cotton gauze layer is arranged between the antibacterial and antivirus layer and the wear-resistant layer. The novel gauze has high-efficiency and lasting inhibitory effect on escherichia coli and staphylococcus aureus, has obvious destructive effect on lentivirus, and reduces the infection rate of the lentivirus on cells from 21.65% to 7.84%. This novel gauze can play extremely strong interception effect to the micron order granule, is 85L/min condition at the air flow under, carries out the contrast test with novel gauze and ordinary gauze, and novel gauze demonstrates fabulous filter effect.
Description
Technical Field
The utility model relates to a nanofiber and gauze structure technical field specifically are a multilayer gauze with antibacterial function.
Background
Gauze is widely used as one of common medical equipments, and is widely used as medical accessories (such as bandage), mask, and outer cover of cotton wadding. The medical gauze mainly plays a role in bandaging the wound and cleaning blood stain of the wound in the operation process.
The traditional protective gauze has the defect that pathogens cannot be killed, secondary infection is easily caused by using the traditional gauze in an environment containing a large amount of viruses or bacteria, and the air permeability and the mechanical strength of the gauze are affected by the simple composite antibacterial and sterilizing layer. Therefore, there is a need for a gauze having an antibacterial function, which can adsorb pathogens and kill them, and ensure air permeability and mechanical strength.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the not enough of prior art provides a multilayer gauze with antibacterial function.
In order to achieve the above object, the utility model provides a following technical scheme:
a multi-layer gauze with an antibacterial function comprises an innermost skin-friendly breathable layer, a middle transition layer and an outer antibacterial functional layer, wherein the transition layer (2) is bonded on the surface of the skin-friendly breathable layer, and the antibacterial functional layer comprises an antibacterial and antivirus layer (3), a cotton gauze layer (4) and a wear-resistant layer (5); the antibacterial and antivirus layer (3) is attached to the outer surface of the transition layer (2), and the cotton gauze layer (4) is arranged between the antibacterial and antivirus layer (3) and the wear-resistant layer (5).
The multi-layer gauze with the antibacterial function is characterized in that the antibacterial and sterilizing layer (3) is attached to the outer surface of the transition layer (2) in a porous fiber net film structure.
The warp and weft of the multi-layer gauze with the antibacterial function and the antibacterial and antivirus layer (3) are all woven by antibacterial and antivirus fibers.
The multi-layer gauze with the antibacterial function has warp yarn intervals of 0.3-0.5mm; the weft yarn interval is 0.3-0.5mm.
The multi-layer gauze with the antibacterial function is characterized in that the antibacterial and antivirus layer (3) is woven by cotton warp yarns and weft yarns made of antibacterial and antivirus fibers.
The multi-layer gauze with the antibacterial function has warp yarn intervals of 0.2-0.3mm; the weft yarn interval is 0.3-0.5mm.
The multi-layer gauze with the antibacterial function is characterized in that the antibacterial and antivirus fibers are PAN/PTHP nano fibers with the size distribution of 100-300 nm.
Advantageous effects
The utility model provides a multilayer gauze with antibacterial function possesses following beneficial effect:
novel gauze compares other gauzes and has better fibrous structure, bigger specific surface area and average pore diameter, and this novel gauze can play extremely strong interception effect to micron order granule, is 85L/min condition at the air flow under, carries out contrast test with novel gauze and ordinary gauze, and novel gauze demonstrates splendid filter effect (96.9%). The novel gauze showed both highly effective and long lasting inhibitory effect (> 99.999%) on escherichia coli and staphylococcus aureus. And the lentivirus-resistant protein has obvious damage effect on lentivirus, and reduces the infection rate of the lentivirus on cells from 21.65% to 7.84%.
Drawings
Fig. 1 is a schematic view of a novel multi-layer gauze structure, wherein: the gauze structure comprises a skin-friendly breathable layer at the innermost layer, a connecting layer at the middle layer and an antibacterial functional layer at the outer layer, and the three layers are counted;
fig. 2 is a schematic structural diagram of the antibacterial and disinfectant layer 3, wherein 21 is cotton warp yarn, and 22 is weft yarn made of antibacterial and disinfectant material.
Detailed Description
The present invention will be described in detail with reference to specific examples.
Referring to fig. 1 and 2, a multi-layer gauze with an antibacterial function comprises an innermost skin-friendly breathable layer, a middle transition layer and an outer antibacterial function layer, wherein the skin-friendly breathable layer 1 is a skin-friendly breathable non-woven fabric, is attached to the skin, plays a role in absorbing moisture and preventing stuffiness and improves the use experience, the transition layer 2 is bonded on the surface of the skin-friendly breathable layer and plays a role in connecting the outer layer with the inner layer structure and integrally stabilizing the gauze, and the antibacterial function layer comprises an antibacterial and antivirus layer 3, a cotton gauze layer 4 and an abrasion-resistant layer 5; the antibacterial and antivirus layer 3 is attached to the outer surface of the transition layer 2, the cotton gauze layer 4 is arranged between the antibacterial and antivirus layer 3 and the wear-resistant layer 5, the air permeability of the antibacterial and antivirus layer 3 is guaranteed, meanwhile, the cotton gauze layer 4 is attached to the surface of the antibacterial and antivirus layer 3, the adsorption and capture effects of the antibacterial and antivirus layer 3 on pathogenic bacteria and viruses can be improved, the wear-resistant layer 5 is attached to the outer surface of the cotton gauze layer 4, the gauze is integrally protected, and meanwhile, the overall mechanical strength is improved.
The antibacterial and sterilizing layer 3 is attached to the outer surface of the transition layer 2 in a porous fiber net film structure, and for example, a layer of porous fiber net film can be obtained by directly spinning on the outer surface of the transition layer 2 in an electrostatic spinning mode;
alternatively, the antibacterial and antivirus layer 3 is prepared by a textile technology, for example, the antibacterial and antivirus layer is woven by using weft yarns made of antibacterial and antivirus fibers as warp yarns and weft yarns, and the interval between the warp yarns is 0.3-0.5mm; the weft yarn interval is 0.3-0.5mm.
Or the antibacterial and antivirus layer 3 is woven by cotton warp yarns and weft yarns made of antibacterial and antivirus fibers, and the interval between the warp yarns is 0.2-0.3mm; the interval between weft yarns is 0.3-0.5mm; the cotton warp yarns can make up the insufficient air permeability of the antibacterial and antivirus fibers, improve the adsorption and capture effects on pathogenic bacteria and viruses, and simultaneously the cotton material can improve the overall mechanical strength of the antibacterial and antivirus layer (3);
the antibacterial and antivirus fiber adopts PAN/PTHP nano-fiber, the PAN/PTHP nano-fiber is prepared by mixing poly-tetrahydropyrimidine (PTHP) and Polyacrylonitrile (PAN) by adopting a conventional electrostatic spinning process, and other types of antibacterial and antivirus fibers can also be adopted.
For example, one process for making PAN/PTHP nanofibers by electrospinning an apparatus: 2g PAN was added to 14g DMF and then varying amounts of PTHP (mPTHP: mPA + PTHP 0%, 55%, 60%, 65%, respectively) were added, stirred at 70 ℃ for 4h with magnetic stirring and DMF and PTHP were mixed thoroughly to give a clear solution. The solution is sucked by a 5mL syringe and fixed on a syringe pump, the flow rate of the syringe pump is set to be 16.7 muL/min, the distance between a needle head and a roller is 15cm, the rotating speed of the roller is 250r/min, and a high-voltage power supply is 15KV. Preparation of the solution into PAN, PAN-55% PTHP, PAN-60% PTHP and PAN-65% PTHP nanofibers by electrospinning apparatus. The above-mentioned preparation process is a relatively common electrostatic spinning process, and is not regarded as the protection range requirement of the utility model.
The novel gauze adopts a multilayer structure, the layers of the multilayer structure are compounded and synergized, and due to the existence of the antibacterial and antivirus layer (3), the novel gauze shows high-efficiency and lasting inhibition effect (> 99.999%) on escherichia coli and staphylococcus aureus, has obvious destructive effect on lentivirus, and reduces the infection rate of the lentivirus to cells from 21.65% to 7.84%. Due to the cotton gauze layer 4, the air permeability and the adsorbability of the gauze are improved. This novel gauze can play extremely strong interception effect to the micron order granule, is 85L/min condition at the air mass flow, carries out contrast test with novel gauze and ordinary gauze, and novel gauze demonstrates splendid filter effect (96.9%), and novel gauze compares other gauzes and shows better fibrous structure, bigger specific surface area and average aperture, and mechanical strength obtains the reinforcing because multilayer composite structure's adoption simultaneously.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (6)
1. The multi-layer gauze with the antibacterial function is characterized by comprising an innermost skin-friendly breathable layer, a middle transition layer and an outer antibacterial function layer, wherein the transition layer (2) is bonded on the surface of the skin-friendly breathable layer, and the antibacterial function layer comprises an antibacterial and antivirus layer (3), a cotton gauze layer (4) and an abrasion-resistant layer (5); the antibacterial and antivirus layer (3) is attached to the outer surface of the transition layer (2), and the cotton gauze layer (4) is arranged between the antibacterial and antivirus layer (3) and the wear-resistant layer (5).
2. The multi-layer gauze having an antibacterial function according to claim 1, characterized in that the antibacterial and disinfectant layer (3) is attached to the outer surface of the transition layer (2) in a porous fibrous web structure.
3. The multi-layer gauze having antibacterial function according to claim 1, wherein the warp and weft of the antibacterial and antiseptic layer (3) are all woven using antibacterial and antiseptic fibers.
4. The multi-layer gauze having antibacterial function according to claim 3, wherein the warp interval is 0.3-0.5mm; the weft yarn interval is 0.3-0.5mm.
5. The multi-layer gauze having antibacterial function according to claim 1, wherein the antibacterial and antiseptic layer (3) is woven using warp yarns of cotton and weft yarns made of antibacterial and antiseptic fibers.
6. The multi-layer gauze having an antibacterial function according to claim 5, wherein the warp intervals are 0.2-0.3mm; the weft yarn interval is 0.3-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221919511.XU CN217753049U (en) | 2022-07-25 | 2022-07-25 | Multilayer gauze with antibacterial function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221919511.XU CN217753049U (en) | 2022-07-25 | 2022-07-25 | Multilayer gauze with antibacterial function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217753049U true CN217753049U (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221919511.XU Active CN217753049U (en) | 2022-07-25 | 2022-07-25 | Multilayer gauze with antibacterial function |
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| CN (1) | CN217753049U (en) |
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2022
- 2022-07-25 CN CN202221919511.XU patent/CN217753049U/en active Active
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