阅读说明：本技术 一种内置药物粉体的复合织物及其生产方法和应用 (Composite fabric with built-in medicine powder and production method and application thereof ) 是由 夏治刚 段向毓 陶光明 马庶祺 徐卫林 于 2020-02-24 设计创作，主要内容包括：本发明提供了一种内置药物粉体的复合织物及其生产方法和应用。该复合织物包括依次层叠设置的拒水抗菌外层、纳米过滤层、抗菌面料层以及单向导湿层,且该抗菌面料层为包含内置药物粉体纱的机织面料层。如此设置,一方面,通过纳米过滤层从外侧阻隔纳米级病毒入侵；另一方面,通过单向导湿层将人口侧的病毒水汽引导进入机织面料层中灭杀病毒。本发明采用条带式有序叠加生产复合织物,创造性融合非织、机织、针织面料一体化加工,协同发挥各织物性能和功能。本发明制备的复合织物具有良好的杀菌、抑菌、抗病毒功能以及良好的杀菌持久性,且能避免复合织物上的病毒回到空气中,解决二次伤害问题,可用于防霾、杀菌、抗菌或防毒材料等复合织物。(The invention provides a composite fabric with built-in medicine powder and a production method and application thereof. The composite fabric comprises a water-repellent antibacterial outer layer, a nano filter layer, an antibacterial fabric layer and a one-way moisture-conducting layer which are sequentially stacked, wherein the antibacterial fabric layer is a woven fabric layer containing built-in drug powder yarns. With the arrangement, on one hand, the nano-scale virus invasion is blocked from the outside through the nano-filtration layer; on the other hand, virus water vapor on the human mouth side is guided into the woven fabric layer through the unidirectional moisture-guiding layer to kill viruses. The invention adopts the strip-type orderly superposition to produce the composite fabric, creatively integrates the integrated processing of non-woven, woven and knitted fabrics, and synergistically exerts the performance and the function of each fabric. The composite fabric prepared by the invention has good sterilization, bacteriostasis and antivirus functions and good sterilization durability, can prevent viruses on the composite fabric from returning to the air, solves the problem of secondary damage, and can be used for composite fabrics such as haze-proof, sterilization, antibiosis or antivirus materials and the like.)

1. The composite fabric with the built-in medicine powder is characterized by comprising a water-repellent antibacterial outer layer (1), a nano filter layer (2), an antibacterial fabric layer (3) and a one-way moisture-conducting layer (4) which are sequentially stacked; antibiotic precoat (3) is the woven precoat that contains built-in medicine powder yarn, one-way wet layer (4) are for having the knitting precoat of the face of repelling water and hydrophilic face of relative setting, just hydrophilic face with antibiotic precoat (3) closely laminates, the face of repelling water sets up towards the outside.

2. The composite fabric with the built-in medicine powder of claim 1, wherein the weft yarns of the woven fabric layer are the built-in medicine powder yarns.

3. The composite fabric with the built-in medicine powder of claim 2, wherein the mass fraction of the medicine powder in the built-in medicine powder yarn is 20-40%.

4. The composite fabric with drug powder inside according to claim 2, wherein the drug powder inside yarn is an antiviral powder inside yarn, the antiviral powder includes but is not limited to TiO₂One or more of nano powder, ZnO nano powder, nano silver antibacterial powder and nano silver nitrate powder.

5. The composite fabric with the built-in medicine powder as claimed in claim 1, wherein the nano filter layer (2) is a polyimide air filter membrane.

6. The method for producing the composite fabric with the medicine powder inside, which is disclosed by any one of claims 1 to 5, is characterized by comprising the following steps of:

s1, performing water repellent finishing on the medical antibacterial non-woven fabric by using water repellent finishing liquid, and then sequentially drying, shaping, cutting and winding to obtain a non-woven fabric strip roll of the water repellent antibacterial layer (1);

s2, selecting a polyimide air filtering membrane as a nano filtering layer (2), cutting and winding to obtain an air filtering membrane strip package of the nano filtering layer (2), and extruding and laminating the air filtering membrane strip package with the non-woven fabric strip of the water-repellent antibacterial layer (1) obtained in the step S1 to obtain a strip package of a protective surface layer;

s3, preparing the non-woven fabric strip coated drug powder-containing internal drug powder yarn by adopting an internal powder yarn production process; taking the yarn with the built-in medicine powder as weft yarn, and weaving, cutting, bonding, sewing and winding the weft yarn and the warp yarn together to obtain a woven fabric strip package of the antibacterial fabric layer (3);

s4, selecting a knitted fabric with the one-way sweat-conducting and moisture-conducting function, and cutting and winding to obtain a strip roll of the one-way moisture-conducting layer (4);

s5, unwinding, center laminating and serging the strip roll package of the protective surface layer, the woven fabric strip roll package of the antibacterial fabric layer (3) and the strip roll package of the one-way moisture-guiding layer (4) from top to bottom in sequence to obtain the composite fabric with the built-in medicine powder;

the upper surface of the woven fabric strip roll of the antibacterial fabric layer (3) is attached to the nano filter layer (2) in the strip roll of the protective surface layer, and the lower surface of the nano filter layer is attached to the hydrophilic surface of the strip roll of the unidirectional moisture-guiding layer (4).

7. The method for producing a composite fabric with drug powder incorporated therein according to claim 6, wherein in step S3, the drug powder incorporated yarn is a coarse yarn and the warp yarn is a fine yarn.

8. The method for producing the composite fabric with the built-in medicine powder according to claim 7, wherein the fineness of the built-in medicine powder yarn is 40-200tex, and the fineness of the warp yarn is 10-22 tex.

9. The method for producing the composite fabric with the drug powder inside according to claim 6, wherein in step S1, the medical antibacterial non-woven fabric has an areal density of 30-50g/m²(ii) a In step S2, the polyimide air filtration membrane has an areal density of 20 to 30g/m²。

10. Use of the composite fabric with drug powder embedded therein according to any one of claims 1 to 5 or the composite fabric produced by the method for producing the composite fabric with drug powder embedded therein according to any one of claims 6 to 9 in haze-proof, sterilization, antibacterial or anti-virus materials.

Technical Field

The invention belongs to the technical field of medical supplies and textiles, and particularly relates to a composite fabric with built-in medicine powder, and a production method and application thereof.

Background

Public places, particularly hospitals, are places where various infectious diseases are highly concentrated. In recent years, various respiratory infectious diseases such as SARS, highly pathogenic avian influenza and the like have strong infectivity and have the characteristics of high transmission speed, high morbidity, wide susceptible population and the like. The transmission of disease is due in part to the fact that the virus enters the air as droplets from coughing or sneezing in affected individuals, and is suspended and entrained in the air and drawn into the lungs by healthy individuals, causing infection. The mask can be worn to effectively avoid germ transmission and infection in an air transmission mode, and on one hand, a healthy user can carry out effective individual protection by wearing the mask; on the other hand, when a patient or a doctor wears the mask for invasive surgery, the mask can effectively block the propagation of bacteria, and susceptible people are protected.

Most of the existing medical masks are prepared from non-woven fabrics compounded by antibacterial fibers and nano fibers, and the mask can generally achieve the effects of high air permeability, antibiosis and haze dust separation. For example, chinese patent CN203789201U discloses an antibacterial mask. The mask is laminated by five layers of structures and comprises the following components in sequence from outside to inside: outer PP non-woven fabrics, setting cloth, PM2.5 particle filter cloth, inner SMS non-woven fabrics and chitosan non-woven fabrics. Although the mask can filter partial PM2.5 particles, the mask cannot kill germs.

Chinese patent CN204034074U discloses a carbon fiber ultrafiltration antibacterial mask, which is composed of an inner layer, an antibacterial ultrafiltration layer, a filter layer and an outer layer. The mask can filter most of pollution particles in the environment, but the bacteriostatic ultrafiltration layer has no obvious effect on inhibiting the growth of bacteria.

Chinese patent CN104687513A discloses a novel antibacterial dust mask. The outmost layer of the mask is made of antibacterial cotton fiber fabric, the innermost layer is made of silver fiber blended gauze, the cotton fiber fabric of the outer layer has a simple filtering effect, and the silver fiber blended gauze of the inner layer has an antibacterial effect. But at the in-process that the gauze mask used, a large amount of steam of human exhalation also can adsorb on silver fibre, forms the liquid film, and bacterium, the virus that enriches on silver fibre can migrate on the liquid film along with respiratory air current, and it is infected that the entering respiratory track that drops from the fibre again very likely to simple silver fibre and skin direct contact can influence the comfort of gauze mask.

Chinese patent CN109315856A improves the above patent and discloses a natural antibacterial medical mask. The mask is divided into three layers, wherein the innermost layer of the mask is prepared by uniformly mixing 2/3 cotton fibers and bamboo fibers and tiling the mixture into nets by a lapping machine; the middle layer of the mask is prepared by evenly mixing 1/3 cotton fibers and nano-silver fibers and flatly paving the mixture by a lapping machine; the outermost layer of the mask is made of TiO₂Mixing chitosan fiber and bamboo charcoal fiber, placing into flos Chrysanthemi Indici extractive solution, stirring, and spreading the mixed fiber on the surface of the middle layer of the mask by a lapping machine. This patent improves in the aspect of the wearing travelling comfort of above-mentioned patent, still can't solve the problem that microenvironment steam is big between human oral area and the gauze mask, easily breed the bacterium.

Chinese patent CN101063235A discloses an antibacterial multifunctional fiber material and a preparation method thereof. The patent further discloses a preparation method of the antibacterial fiber, which comprises the steps of preparing antibacterial multifunctional master batches from nano titanium dioxide (photocatalysis), zinc oxide, copper oxide and tin oxide serving as inorganic antibacterial powder and polypropylene (80-85 wt.%), adding the inorganic antibacterial master batches into a composite spinning machine for spinning, and stretching, twisting and oiling the composite spinning material by a winding machine to prepare the antibacterial multifunctional fiber material. Similarly, chinese patent CN100362152C discloses an antibacterial viscose fiber and a production method thereof, which adopts silver-carrying zeolite as an antibacterial agent and cellulose sulfonate solution to blend and spin into the antibacterial viscose fiber. Most of the antibacterial components of the antibacterial fiber prepared by the method are coated in the fiber, and the effect of the effective components of the antibacterial fiber is not fully exerted.

Therefore, the following problems and drawbacks to be solved still exist in the prior art: firstly, the micro-environment water vapor of the medical mask in contact with the mouth and the nose of a human body is large, bacteria are easy to breed, and the comfort level is poor; secondly, the medical mask has short antibacterial and bacteriostatic action period and is difficult to meet the long-time operation and repeated use requirements of medical staff; thirdly, the mouth and the nose of a patient infected with diseases are important passages for exchanging human bodies with external substances, bacteria easily pollute the mask, and the possibility of falling off from the mask and entering the body of a wearer again can be caused, so that secondary damage is caused to the patient; fourth, the existing medical mask does not have the function of actively killing bacteria, and the mask is improperly discarded, so that the possibility of polluting the surrounding environment is generated.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a composite fabric with built-in medicine powder, a production method and application thereof, so as to solve the problems that the composite fabric in the prior art is poor in sterilization, bacteriostasis and antivirus effects, easy to cause secondary damage and the like.

In order to achieve the purpose, the invention adopts the technical scheme that:

a composite fabric with built-in medicine powder comprises a water-repellent antibacterial outer layer, a nano filter layer, an antibacterial fabric layer and a one-way moisture-conducting layer which are sequentially stacked; the antibacterial fabric layer is a woven fabric layer containing built-in drug powder yarns, the one-way moisture-conducting layer is a knitted fabric layer provided with a water-repellent surface and a hydrophilic surface which are arranged oppositely, the hydrophilic surface is tightly attached to the antibacterial fabric layer, and the water-repellent surface faces outwards.

Further, the weft yarn of the woven fabric layer is the yarn with the built-in medicine powder.

Furthermore, the mass fraction of the drug powder in the yarn with the built-in drug powder is 20-40%.

Further, the built-in drug powder yarn is built-in antiviral powder yarn, and the antiviral powder includes but is not limited to TiO₂One or more of nano powder, ZnO nano powder, nano silver antibacterial powder and nano silver nitrate powder.

Further, the nano filter layer is a polyimide air filter membrane.

The production method of the composite fabric with the built-in medicine powder comprises the following steps:

s1, performing water repellent finishing on medical antibacterial non-woven fabric by using water repellent finishing liquid, and then sequentially drying, shaping, cutting and winding to obtain a non-woven fabric strip roll of a water repellent antibacterial layer;

s2, selecting a polyimide air filtering membrane as a nano filtering layer, cutting and winding to obtain an air filtering membrane strip package of the nano filtering layer, and extruding and laminating the air filtering membrane strip package and the non-woven fabric strip of the water-repellent antibacterial layer obtained in the step S1 to obtain a strip package of a protective surface layer;

s3, preparing the non-woven fabric strip coated drug powder-containing internal drug powder yarn by adopting an internal powder yarn production process; taking the yarn with the built-in medicine powder as weft yarn, and weaving, cutting, bonding, sewing and winding the weft yarn and the warp yarn together to obtain a woven fabric strip roll of the antibacterial fabric layer;

s4, selecting a knitted fabric with the one-way sweat-conducting and moisture-conducting function, and cutting and winding to obtain a strip roll of the one-way moisture-conducting layer;

s5, unwinding, center laminating and edge locking are sequentially carried out on the strip roll package of the protective surface layer, the woven fabric strip roll package of the antibacterial fabric layer and the strip roll package of the one-way moisture-guiding layer from top to bottom to obtain the composite fabric with the built-in medicine powder;

the upper surface of the woven fabric strip roll package of the antibacterial fabric layer is attached to the nano filter layer in the strip roll package of the protective surface layer, and the lower surface of the nano filter layer is attached to the hydrophilic surface of the strip roll package of the unidirectional moisture-guiding layer.

Further, in step S3, the yarn containing drug powder is a thick yarn, and the warp yarn is a thin yarn.

Furthermore, the fineness of the yarn with the built-in medicine powder is 40-200tex, and the fineness of the warp is 10-22 tex.

Further, in step S1, the medical antibacterial non-woven fabric has an areal density of 30 to 50g/m²(ii) a In step S2, the polyimide air filtration membrane has an areal density of 20 to 30g/m²。

The composite fabric with the built-in medicine powder or the composite fabric produced by the production method of the composite fabric with the built-in medicine powder is applied to haze prevention, sterilization, antibiosis or gas defense materials, such as protective articles for preparing masks, gas masks, protective clothing and the like.

As a preferred scheme, the composite fabric with the built-in medicine powder is used for an antibacterial medical mask, the antibacterial medical mask comprises a mask surface body and an antibacterial tensioning belt, the mask surface body is composed of the composite fabric with the built-in medicine powder or the composite fabric produced by the production method of the composite fabric with the built-in medicine powder, the water-repellent antibacterial outer layer of the composite fabric is the wearing exposed surface of the mask surface body, and the one-way moisture-conducting layer of the composite fabric is the wearing skin-attached surface of the mask surface body.

Advantageous effects

Compared with the prior art, the composite fabric with the built-in medicine powder and the production method and application thereof provided by the invention have the following beneficial effects:

the invention provides a composite fabric with built-in medicine powder, which comprises a water-repellent antibacterial outer layer, a nano filter layer, a woven fabric layer with built-in medicine powder yarns and a one-way moisture-conducting layer which are sequentially stacked. The water-repellent antibacterial outer layer and the nano filter layer form a protective surface layer, and the water-repellent antibacterial outer layer and the nano filter layer are non-woven fabric layers, so that harmful substances such as external dust, bacteria, viruses and the like can be effectively prevented from invading human bodies; the woven fabric layer prepared by taking the built-in medicine powder yarn as weft yarn is arranged between the protective surface layer and the one-way moisture-conducting layer, the content of antibacterial powder in the built-in medicine powder yarn can reach 20-40%, the powder finished yarn is wrapped by the non-woven fabric strip, the air permeability is high, meanwhile, the built-in antiviral powder yarn is used as thick special weft yarn to be interwoven with thin special warp yarn, the porosity is high, and therefore, the air permeability is good, and therefore, the virus can be effectively killed and sterilized; the unidirectional moisture-conducting layer can effectively lead water vapor containing bacteria into a woven fabric layer with built-in drug powder yarns from the water-repellent surface; with the arrangement, on one hand, the nano-scale virus invasion is blocked from the outside through the nano-filtration layer; on the other hand, virus water vapor on the human mouth side is guided into the woven fabric layer through the one-way moisture-guiding layer to kill viruses, so that efficient virus killing and sterilization are realized, viruses on the composite fabric are prevented from returning to the air, secondary suction damage is reduced, and the problem of secondary damage is solved. The composite fabric provided by the invention is used for haze-proof, sterilization, antibiosis or gas defense materials, and has the following beneficial effects:

(1) the woven fabric layer of the built-in drug powder yarn is prepared from the built-in drug powder yarn prepared by wrapping the drug powder with the non-woven fabric strip, and has good air permeability, because the built-in drug powder yarn prepared by wrapping the drug powder with the non-woven fabric strip has high air permeability, and the built-in drug powder yarn is interwoven with the fine special warp yarn as the coarse special weft yarn, so that the porosity of the obtained woven fabric layer is high. The mass content of the traditional Chinese medicine powder in the yarn with the built-in medicine powder can reach 20-40%, and the high-content medicine powder is uniformly distributed in the composite fabric and can be effectively sterilized, so that the safety, the medical function and the service life cycle of the mask fabric in the using process are improved, the technical problems that the built-in medical mask is short in antibacterial and bacteriostatic action cycle and cannot meet the long-time operation and repeated use requirements of medical staff are solved, the functional defect that the conventional medical mask does not have the function of actively killing bacteria is made up, and the problem that the used mask is discarded improperly to cause the pollution to the surrounding environment is solved.

(2) The nanometer filter layer adopts polyimide fiber air filtration membrane that has high-efficient antibiotic, nanometer millipore filtration, frivolous air permeability concurrently, under the prerequisite of guaranteeing the high gas permeability of gauze mask, effective separation external bacterium invades the human body to restrain surperficial bacterial growing simultaneously, effectively solved "current medical gauze mask is difficult to carry out long-time effective separation and kill to the bacterium, still has the technical problem of bacterial infection risk for long-time use".

(3) One-way wet layer can be with population, the moisture that contains the bacterium in a large number of nose exhalations, effectively leading-in woven fabric layer of built-in medicine powder yarn, carry out the high-efficient virus killing and sterilization of wet or wet, when being used for medical gauze mask, can obviously improve population and gauze mask contact area's microenvironment, prevent the bacterium in the exhalant steam, the virus gets into the respiratory track once more, effectively solved "medical gauze mask and the microenvironment moisture of oral area contact big, easily breed bacterium, the technical problem that the comfort level is poor".

(4) The production process of the composite fabric with the built-in medicine powder, provided by the invention, adopts the orderly superposition of a plurality of strips to produce the composite fabric, creatively fuses the integrated processing of non-woven, woven and knitted fabrics, and synergistically exerts the performances and functions of the three fabrics, and has the advantages of simple and convenient processing process flow and easy large-area popularization, application and implementation.

Drawings

Fig. 1 is a schematic cross-sectional structure view of a composite fabric with drug powder inside according to the present invention;

FIG. 2 is a block diagram of a production process of the composite fabric with drug powder inside provided by the invention;

fig. 3 is a block diagram of a manufacturing process of the antibacterial medical mask provided by the present invention;

FIG. 4 is a schematic view of an antibacterial medical mask according to the present invention;

in the figure, 1 is a water-repellent antibacterial outer layer, 2 is a nano filter layer, 3 is a woven fabric layer with built-in drug powder yarn, 4 is a one-way moisture-conducting layer, 5 is a mask body, and 6 is an antibacterial tightening belt.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

Referring to fig. 1, the composite fabric with drug powder inside provided by the invention comprises a water-repellent antibacterial outer layer 1, a nano filter layer 2, an antibacterial fabric layer 3 and a one-way moisture-conducting layer 4 which are sequentially laminated.

The antibacterial fabric layer 3 is a woven fabric layer containing built-in drug powder yarns, the built-in drug powder yarns are weft yarns of the woven fabric layer, the weft yarns are thick special yarns, the warp yarns are thin special yarns, the built-in drug powder yarns are built-in antiviral powder yarns, the mass content of the built-in drug powder yarns is 20% -40%, and the powder finished yarns are wrapped by non-woven fabric strips and have high air permeability; meanwhile, the built-in antiviral powder yarn is used as a thick special weft yarn to be interwoven with a thin special warp yarn, so that the porosity is high, and the air permeability is good; the high-content medicine powder is uniformly distributed in the antibacterial fabric layer, so that the anti-virus mask effectively kills viruses and bacteria, and increases the safety, medical function and life cycle of the mask fabric in the using process.

The antiviral powder can be any one or more of zinc oxide powder, titanium dioxide powder, nano silver powder and silver nitrate powder.

The one-way moisture-conducting layer 4 comprises a water-repellent surface and a hydrophilic surface, and the hydrophilic surface is tightly attached to the antibacterial fabric layer 3, so that water vapor containing bacteria can be effectively led into the antibacterial fabric layer 3 from the water-repellent surface, high-efficiency disinfection and sterilization are realized, and secondary suction injury is reduced.

The nano filter layer 2 is preferably a polyimide air filter membrane, so that the high air permeability of the mask is guaranteed, external bacteria can be effectively prevented from invading a human body, and the surface bacteria breeding is inhibited.

Referring to fig. 2, the method for producing the composite fabric with the drug powder inside includes the following steps:

s1, preparing non-woven fabric strip roll package of water repellent antibacterial layer

Selecting the surface density of 30-50g/m²The medical antibacterial non-woven fabric is sequentially subjected to rejectionPadding with water finishing liquid, drying by a dryer, shaping by a shaping machine, cutting into non-woven fabric strips by a strip slitting machine, and winding in parallel to obtain a non-woven fabric strip roll of the water-repellent antibacterial layer 1;

s2. preparing the strip roll package of the protective surface course

Selecting the surface density of 20-30g/m²The polyimide air filtering membrane is used as a nano filtering layer, the nano filtering membrane is cut and wound into a coiled material to obtain a strip package of the air filtering membrane of the nano filtering layer, a single-layer strip of the nano filtering layer unwound from the strip package of the air filtering membrane in parallel is fed into a pair of compression roller jaws in a superposition manner with a non-woven fabric strip of the water-repellent antibacterial layer, and the water-repellent antibacterial layer and the nano filtering layer are flatly attached together after being extruded by the compression roller jaws to form the strip package of the protective surface layer;

s3, preparing a strip roll package of a woven fabric layer of the yarn with built-in medicine powder

The production process of the built-in powder yarn provided by the invention patent with the name of a composite yarn forming method of a built-in powder material and the publication number of CN108286101B and the publication number of 2019.11.05 is adopted, and the surface density of 25-40g/m is selected²The PP melt-blown non-woven fabric is cut into non-woven fabric strips with the width of 10mm, and the non-woven fabric strips are coated with medicine powder for spinning; the medicinal powder is antibacterial powder such as TiO₂Any one of nano powder, ZnO nano powder and silver ion nano antibacterial powder or the combination of the medicine powder; the fineness of the built-in medicine powder yarn is 40-200tex, and the medicine mass fraction in the built-in medicine powder yarn is 20-40%; using the built-in drug powder yarn as weft yarn and the polyester sewing thread as warp yarn (the fineness is 10-22tex), manufacturing a fabric of the built-in drug powder yarn machine on a rapier loom, cutting the fabric of the built-in drug powder yarn machine into woven fabric strips through a strip splitting machine, and bonding and sealing the edges of the woven fabric strips through a thermal bonding machine to form a strip roll package of a woven fabric layer of the built-in drug powder yarn machine;

s4, preparing a strip roll package of the one-way moisture-conducting layer

The unidirectional moisture-conducting layer is made of knitted fabric with unidirectional sweat-conducting and moisture-conducting functions, is cut by a cutting machine to be made into a knitted fabric strip, and is wound on the upper cylindrical bobbin in parallel to form a strip package of the unidirectional moisture-conducting layer;

s5, preparing the composite fabric by integrally compounding a plurality of strips

On a laminating machine, the strip roll package of the protective surface layer, the strip roll package of the woven fabric layer of the yarn with the built-in medicine powder and the strip roll package of the unidirectional moisture-guiding layer are respectively and sequentially placed on an upper unwinding roller, a middle unwinding roller and a lower unwinding roller of the laminating machine, the centers of the protective surface layer strip, the woven fabric strip and the unidirectional moisture-guiding layer strip which are unwound from the upper unwinding roller, the middle unwinding roller and the lower unwinding roller in parallel are coincided, the upper surface of the woven fabric strip is attached to a nano filter layer of the protective surface layer strip, the lower surface of the woven fabric strip is closely attached to a hydrophilic surface of the unidirectional moisture-guiding layer strip, two edges of the attached integrated composite strip are respectively sewn and locked through a hemming machine, and the composite fabric with the built-in medicine powder is obtained.

The composite fabric with the built-in medicine powder can be used for composite fabrics with functions of haze prevention, sterilization, antibiosis or gas defense, and the like, such as protective articles for preparing masks, gas masks, protective clothing and the like.

As a preferable scheme, the composite fabric with the medicine powder inside is used for an antibacterial medical mask. The antibacterial medical mask comprises a mask surface body and an antibacterial tensioning belt, wherein the mask surface body is composed of the composite fabric with the built-in medicine powder or the composite fabric produced by the production method of the composite fabric with the built-in medicine powder, the water-repellent antibacterial outer layer of the composite fabric is the wearing exposed surface of the mask surface body, and the one-way moisture-conducting layer of the composite fabric is the wearing skin-attached surface of the mask surface body.

Referring to fig. 3 and 4, the antibacterial medical mask includes a mask body 5 and an antibacterial tightening strap 6, and the mask body 5 and the antibacterial tightening strap 6 are molded and packaged to obtain the antibacterial medical mask. The mask surface body is composed of the composite fabric with the built-in medicine powder, the water-repellent antibacterial outer layer 1 of the composite fabric is the wearing exposed surface of the mask surface body, and the one-way moisture-conducting layer 4 of the composite fabric is the wearing skin-close surface of the mask surface body.

As another preferable scheme, the composite fabric with the medicine powder inside is used for preparing protective clothing, and is particularly used for the back, the chest and other places of the protective clothing which are easy to sweat. The composite fabric with the built-in medicine powder has the functions of gas defense, antibiosis, sterilization and the like, and has the advantage of good air permeability, so that the problems of poor air permeability or difficulty in combination of protection and air permeability of the existing protective clothing can be solved.

An active antibacterial and bactericidal experiment is carried out on the composite fabric with the built-in drug powder produced in the following example, and the antibacterial and bactericidal effects are represented by cutting a sample into the size of 20mm × 30mm according to GB15979-2002 appendix C4 of hygienic Standard for Disposable sanitary articles, the bacteria for detection are respectively escherichia coli ATCC25922 and staphylococcus aureus ATCC6538, and the bactericidal effect is tested, according to the regulation of GB15979-2002, the product has the bacteriostatic action when the bacteriostatic rate is more than or equal to 50-90 percent, and the product has the strong bacteriostatic action when the bacteriostatic rate is more than 90 percent.

The composite fabric with the medicine powder inside produced in the following examples is used for 4 h/day under simulated human body respiratory absorption degree and air exposure conditions, after N (N is an integer of 7-10) days are continuously used, the mask body is cut off in the same area under the sterile environment, the bacteria content is measured, and whether the sanitary requirement of the sanitary standard GB15980-1995 of the disposable medical product (the number of bacterial colonies is less than or equal to 10 cfu/cm) can be met after N days of use is tested²) To characterize its bactericidal durability.