CN111648137B

CN111648137B - Double-layer infiltrating functional textile surface mask sleeve

Info

Publication number: CN111648137B
Application number: CN202010440302.6A
Authority: CN
Inventors: 谢剑; 李文霄; 徐进良; 阚童利
Original assignee: North China Electric Power University
Current assignee: North China Electric Power University
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-05-11
Anticipated expiration: 2040-05-22
Also published as: CN111648137A

Abstract

The invention discloses a double-layer infiltrating functional textile surface mask sleeve, belonging to the technical field of respiratory infectious disease prevention and control. The mask sleeve is adhered by the outer layer of the mask sleeve with the super-hydrophobic surface and the inner layer of the mask sleeve with the hydrophilic-hydrophobic heterogeneous surface through magic tapes to form a hollow interlayer mask sleeve, so that the mask is convenient to place. When the droplets carrying respiratory viruses impact the outer layer of the mask sleeve, rebound occurs, and the droplets carrying the respiratory viruses are prevented from being inhaled to cause virus infection. A tree-fork fractal hydrophilic channel is distributed between the surfaces of hydrophilic and hydrophobic heterogeneous materials on the inner layer of the mask sleeve, and liquid drops formed by condensation of humid and hot gas exhaled by a human body are collected into cotton balls at the chin of the mask sleeve. Therefore, the mask sleeve can keep the mask dry, improve the virus protection performance and prolong the service life of the mask.

Description

Double-layer infiltrating functional textile surface mask sleeve

Technical Field

The invention belongs to the technical field of respiratory infectious disease prevention and control, and particularly relates to a double-layer infiltrating functional mask sleeve with a textile surface.

Background

Respiratory infectious diseases are frequently caused in cold seasons, cold air and damp-heat gas are breathed in by a human body, when the cold air and the damp-heat gas circularly pass through the mask core component melt-spraying cloth, the warm-wet gas circularly condenses and evaporates on the melt-spraying cloth, and the pores of the melt-spraying cloth are expanded, so that the droplet filtering effect and the virus protection effect are influenced. Therefore, the mask needs to be replaced periodically. If the mask can be effectively kept dry, the service life of the mask can be prolonged. The invention meets this need by means of a mask sleeve having a double-layered textile surface with wetting properties.

Disclosure of Invention

The invention aims to provide a mask sleeve with a double-layer infiltration functional textile surface, which is characterized in that the mask sleeve is formed by adhering an outer layer of the mask sleeve with a super-hydrophobic surface and an inner layer of the mask sleeve with an hydrophilic-hydrophobic heterogeneous surface through magic tapes, so that a hollow interlayer mask sleeve is formed, and a mask can be conveniently placed: the tree fork fractal hydrophilic channels are distributed between the hydrophilic and hydrophobic heterogeneous surfaces of the inner layer of the mask sleeve; the outer layer of the mask sleeve and the inner layer of the mask sleeve are hexagonal or rectangular in shape, and the sewing edges of the outer layer of the mask sleeve and the inner layer of the mask sleeve are sewn together; the other edges of the outer layer of the mask sleeve are sewn with a magic tape male surface; the left edge of the inner layer of the mask sleeve is sewed with a magic tape mother surface; after the male hook-and-loop fasteners on the outer layer of the mask sleeve are attached to the female hook-and-loop fasteners on the inner layer of the mask sleeve, the mask sleeve with a hollow interlayer is formed, and a mask can be conveniently placed; two sides parallel to the sewing edge on the inner layer of the mask sleeve are respectively provided with an I-shaped seam, and two ends of the I-shaped seam are provided with round holes for facilitating the wearing of the mask by the tying belt or the hanging ear line of the mask when the mask is placed.

The super-hydrophobic surface of the outer layer of the mask sleeve is formed by spraying a hydrophobic nano solution which is heated for 5 minutes in 100 ℃ boiling water in a water bath on the surface of nylon cloth through a spray bottle; wherein the hydrophobic nano solution adopts nano starch, nano active carbon or nano silicon dioxide, and the white spirit, the acetic acid or the water and the perfluorinated silane, the mercaptan or the stearic acid are mixed according to the mass part ratio of 1-10: 100-500: 0.1-2.

The hydrophobic nano solution is prepared from nano starch, white spirit and perfluorosilane according to the mass part ratio of 5: 200: 1, is prepared according to the proportion of 1.

The mask sleeve is characterized in that a U-shaped pocket made of transparent materials is sewn near the sewing edge of the outer layer of the mask sleeve and used for placing a name card of a wearer, and the name card contains names and personal information so as to be convenient for identifying the identity of the wearer.

The hydrophilic and hydrophobic heterogeneous surface of the inner layer of the mask comprises a crotch fractal hydrophilic channel formed by spraying a hydrophobic nano solution on cotton cloth through a spray bottle under a fractal mask; and a super-hydrophobic region formed on a part of the surface which is not covered by the fractal mask; the hydrophobic nano solution is the same as the hydrophobic nano solution on the outer layer of the mask sleeve.

The width of the fractal mask is larger than that of the crotch fractal hydrophilic channel; mainly considering the infiltration and the penetration of the hydrophobic nano solution to the cotton cloth; the root of the tree fork fractal hydrophilic channel is connected with a cotton ball, and the cotton ball is positioned at the chin of the mask sleeve and needs to be replaced periodically to keep the mask sleeve dry and sanitary.

The wetting functional surfaces of the outer layer and the inner layer of the mask sleeve can be sprayed with the hydrophobic nano solution again for recycling after being used for a period of time or cleaned.

The invention has the beneficial effects that: when the mask is placed in the mask sleeve for use, when the droplets carrying respiratory viruses impact the outer layer of the mask sleeve, the virus droplets are rebounded and blocked by the super-hydrophobic surface of the outer layer of the mask sleeve and cannot contact the surface of the mask, so that the virus protection effect is achieved; respiratory infectious diseases are frequently caused in cold seasons, when humid and hot gas exhaled by a human body meets the inner layer of the mask sleeve, the humid and hot gas is condensed into liquid drops in the super-hydrophobic area, is rapidly discharged by the tree fork-shaped hydrophilic channel, and is collected into cotton balls positioned at the chin of the mask sleeve. Therefore, the mask sleeve can keep the mask melt-blown cloth dry, improve the virus protection performance and prolong the service life of the mask.

Drawings

FIG. 1 is an expanded view of a two-layer, wetting functional textile surface mask cover.

FIG. 2a is an enlarged view of portion A of FIG. 1;

FIG. 2B is an enlarged view of section B of FIG. 1;

FIG. 2C is an enlarged view of section C of FIG. 1;

fig. 3 is a side view of the mask shell with the mask placed thereon.

Fig. 4 is an enlarged view of a portion d in fig. 3.

FIG. 5 is a schematic diagram of a spray bottle spraying a hydrophobic nano solution, wherein a is a schematic diagram of an outer layer of a hydrophobic nano solution spraying mask sleeve; b is a schematic diagram of the inner layer of the mask cover sprayed with the hydrophobic nano solution.

Fig. 6 is a schematic view of the operation of wearing a mask shell with a mask placed thereon.

Reference numbers in the figures: 1-outer layer of mask sleeve, 2-inner layer of mask sleeve, 3-sewing edge, 4-male surface of magic tape, 5-female surface of magic tape, 6-hydrophobic nano solution, 7-spray bottle, 8-hydrophobic nano starch, 9-nylon fiber, 10-liquid drop, 11-U-shaped pocket, 12-fractal mask, 13-crotch fractal hydrophilic channel, 14-cotton fiber, 15-super-hydrophobic surface, 16-super-hydrophobic area, 17-I-shaped seam, 18-round hole, 19-cotton ball, 20-mask, 21-mask lace or ear hanging line, 22-respiratory virus, 23-flying foam, 24-warm and humid gas exhaled by human body, 25-condensed liquid drop and 26-interlayer.

Detailed Description

The invention provides a mask sleeve with a double-layer wetting functional textile surface, which is further described by combining the attached drawings and an embodiment.

Figure 1 is an expanded view of a two-layer, wetting functional textile surface mask cover. The internal structure of A, B, C is shown in fig. 2a, 2b, and 2 c.

The mask sleeve consists of a mask sleeve outer layer 1 with a super-hydrophobic surface 15 and a mask sleeve inner layer 2 with a hydrophilic and hydrophobic heterogeneous surface; the specific structure is as shown in figure 1, the outer layer 1 of the mask sleeve and the inner layer 2 of the mask sleeve are both hexagonal or rectangular in shape, and the sewing edges 3 of the outer layer 1 of the mask sleeve and the inner layer 2 of the mask sleeve are sewn together; the other edges of the outer layer 1 of the mask sleeve are sewn with a magic tape male surface 4; the other edges of the inner layer 2 of the mask sleeve are sewn with a magic tape female surface 5; after the male hook-and-loop fasteners 4 of the outer layer 1 of the mask sleeve are attached to the female hook-and-loop fasteners 5 of the inner layer 2 of the mask sleeve, a hollow interlayer 26 is formed, and the mask 20 is placed in the hollow interlayer 26 (as shown in fig. 3); wherein, on the inner layer 2 of the mask sleeve, two edges parallel to the sewing edge 3 are respectively provided with an I-shaped seam 17, and two ends of the I-shaped seam 17 are provided with round holes 18 for the mask lacing 21 or the hangers to be worn out, thereby being convenient for the mask 20 to wear.

The outer layer 1 of the mask sleeve is nylon cloth made of nylon fibers 9; the surface of the nano-water is sprayed with a layer of hydrophobic nano-solution 6 which is heated for 5 minutes in boiling water at 100 ℃ by a water bath through a spray bottle 7; the hydrophobic nano solution 6 is prepared from nano starch, white spirit and perfluorosilane according to the mass part ratio of 5: 200: 1 ratio to form a superhydrophobic surface 15 (shown as a in fig. 5). The microstructure is shown in fig. 2a, namely, from the enlarged view of part a in fig. 1, the hydrophobic nano-starch 8 is attached to the nylon fiber 9. The wettability of the super-hydrophobic surface 15 is characterized in that the contact angle of the liquid drop 10 on the surface of the outer layer 1 of the mask sleeve is larger than 150 degrees, and the rolling angle is smaller than 2 degrees. In addition, a U-shaped pocket 11 (shown on the left side of fig. 1) made of transparent material is sewn near the sewing edge 3 of the mask shell outer layer 1 for placing a name card of a wearer, and the name card contains names and personal information so as to be convenient for identifying the identity of the wearer.

The inner layer 2 of the mask sleeve is a hydrophilic and hydrophobic heterogeneous surface made of cotton fibers 14; the hydrophilic and hydrophobic heterogeneous surface is a cotton cloth surface with hydrophilic channels and hydrophobic areas; the surface of the material is firstly covered by a fractal mask 12 (as shown in b in figure 5), and then a layer of nano starch, white spirit and perfluorosilane is sprayed by a spraying bottle 7 according to the weight ratio of 5: 200: 1, forming a tree-fork fractal hydrophilic channel 13 on a covering part of a fractal mask 12 by using a hydrophobic nano solution 6 prepared by mass fraction of 1; the root of the tree fork fractal hydrophilic channel 13 is connected with a cotton ball 19. The microstructure of the dendrimer-shaped hydrophilic channel 13 is shown in fig. 2B, i.e. from the enlarged view of part B in fig. 1, the hydrophilic channel is cotton fiber 14, which has the wettability characteristics: the contact angle of the liquid drop 10 in the dendrimer fractal hydrophilic channel 13 is less than 10 degrees; the part uncovered by the fractal mask 12 is shown in fig. 2C, that is, enlarged from part C in fig. 1, the hydrophobic nano-starch 8 is attached to the cotton fiber 14 to form a super-hydrophobic region 16; the wettability is characterized in that the contact angle of the liquid drop 10 on the super-hydrophobic area 16 is more than 150 degrees, and the rolling angle is less than 2 degrees.

FIG. 3 is a schematic side view of a mask shell with a mask placed therein; fig. 4 is an enlarged view of a portion d in fig. 3. When the mask cover with the mask 20 is used, the cotton ball 19 of the mask cover is positioned at the chin of the human body after being worn; when the droplets 23 carrying the respiratory viruses 22 collide with the outer layer 1 of the mask sleeve, the droplets 23 are rebounded and blocked by the super-hydrophobic surface 15 of the outer layer 1 of the mask sleeve and cannot contact the surface of the mask 20, so that the virus protection effect is achieved; the warm and humid air 24 exhaled by the human body is condensed into condensed liquid drops 25 on the super-hydrophobic region 16 of the mask shell inner layer 2, and the condensed liquid drops 25 are quickly absorbed after touching the crotch-shaped hydrophilic channel 13 (as shown in fig. 3 and 4) and are guided into the cotton ball 19 at the root of the crotch-shaped hydrophilic channel 13. Therefore, the mask cover can keep the mask 20 dry, improve the virus protection performance of the mask 20 and prolong the service life.

Example 1 (example figure shown in figure 6).

Cutting 300-mesh nylon cloth and cotton cloth into a mask shape which is hexagonal; the overall length of the profile is 150mm, and the width is 80 mm. Sewing the cut and formed nylon cloth with the sewing edge of the cotton cloth, sewing a magic tape male surface with the width of 5mm on the other edges of the nylon cloth surface, and sewing a magic tape female surface with the width of 5mm on the other edges of the cotton cloth surface; after the male surface and the female surface of the magic tape are attached, an interlayer for placing the mask is formed between the nylon cloth and the cotton cloth. Two edges of the cotton cloth surface, which are parallel to the sewing edges, are respectively provided with an I-shaped seam with the width of 2mm at the position of 15mm, and the two ends of the I-shaped seam are provided with round holes with the diameter of 2mm, so that the lacing or the suspension loop line of the mask can conveniently penetrate out.

Adopting nano starch, white spirit and perfluorosilane according to the mass part ratio of 5: 200: 1 proportion, filling the hydrophobic nano solution into a spray bottle, and heating the solution in boiling water at 100 ℃ for 5 minutes in a water bath. And spraying the heated hydrophobic nano solution on nylon cloth, and naturally drying at room temperature to form a super-hydrophobic surface as the outer layer 1 of the mask sleeve. When the mask is worn, the super-hydrophobic surface of the outer layer of the mask sleeve can rebound droplets carrying respiratory viruses (as shown in figure 6). The outer position that is close to I shape seam of gauze mask cover is made up the transparent polyvinyl chloride piece of length 30mm, width 20mm again, forms U type pocket 11 for place the person's of wearing business card, its business card contains name and personal information, is convenient for discern the person's of wearing identity.

And spraying cotton cloth on the heated hydrophobic nano solution 6 under the shielding of the fractal mask. The parts covered by the mask form a tree-fork fractal hydrophilic channel 13, and the parts uncovered by the mask form an ultra-hydrophobic area 16. And naturally drying at room temperature to generate the tree fork fractal hydrophilic channels 13 which are distributed on the hydrophilic-hydrophobic heterogeneous surface among the super-hydrophobic textile surfaces and serve as the mask sleeve inner layer 2. The fractal mask adopts an aluminum alloy sheet with the thickness of 0.2mm, the overall appearance and the size are consistent with those of the cut cotton cloth, the fractal structure on the fractal mask is formed by laser etching, the channel width at the root part is 3mm, and the channel width at the top part is 1 mm. Correspondingly, the root part of the branch fractal hydrophilic channel is 1.8mm wide, and the top part of the branch fractal hydrophilic channel is 0.5mm wide. The root of the tree-fork fractal hydrophilic channel is connected with a cotton ball at the chin position, and the diameter of the cotton ball is 15 mm. When the mask is worn, warm and humid air exhaled by a human body is condensed into liquid drops 25 in the super-hydrophobic area of the inner layer of the mask sleeve, and the liquid drops are collected into cotton balls connected with the roots through the fractal hydrophilic channel, and the cotton balls are replaced after going out and coming home each time.

Claims

1. The utility model provides a double-deck infiltration nature function textile surface's gauze mask cover, a serial communication port, the gauze mask cover is pasted the adhesion through the magic by the gauze mask cover that has super hydrophobic surface skin and hydrophilic hydrophobic heterogeneous surface's gauze mask cover inlayer, forms cavity intermediate layer gauze mask cover, is convenient for lay the gauze mask: the tree fork fractal hydrophilic channels are distributed between the hydrophilic and hydrophobic heterogeneous surfaces of the inner layer of the mask sleeve; the outer layer of the mask sleeve and the inner layer of the mask sleeve are hexagonal or rectangular in shape, and the sewing edges of the outer layer of the mask sleeve and the inner layer of the mask sleeve are sewn together; the other edges of the outer layer of the mask sleeve are sewn with a magic tape male surface; the left edge of the inner layer of the mask sleeve is sewed with a magic tape mother surface; after the male hook-and-loop fasteners on the outer layer of the mask sleeve are attached to the female hook-and-loop fasteners on the inner layer of the mask sleeve, the mask sleeve with a hollow interlayer is formed, and a mask can be conveniently placed; two sides of the inner layer of the mask sleeve, which are parallel to the sewing edge, are respectively provided with an I-shaped seam, and two ends of the I-shaped seam are provided with round holes for facilitating the lacing or the hangers to penetrate out when the mask is placed, so that the mask can be worn conveniently;

the hydrophilic and hydrophobic heterogeneous surface of the inner layer of the mask sleeve comprises a crotch fractal hydrophilic channel formed by spraying a hydrophobic nano solution on cotton cloth through a spray bottle under a fractal mask; and a super-hydrophobic region formed on a part of the surface which is not covered by the fractal mask; the hydrophobic nano solution is the same as the hydrophobic nano solution on the outer layer of the mask sleeve;

the width of the fractal mask is larger than that of the crotch fractal hydrophilic channel; the root of the tree fork fractal hydrophilic channel is connected with a cotton ball, and the cotton ball is positioned at the chin of the mask sleeve and needs to be replaced periodically to keep the mask sleeve dry and sanitary.

2. The double-layered infiltrative function textile surface mask sleeve according to claim 1, wherein the super-hydrophobic surface of the outer layer of the mask sleeve is formed by spraying a hydrophobic nano solution heated in a water bath at 100 ℃ for 5 minutes on the surface of nylon cloth through a spray bottle; wherein the hydrophobic nano solution adopts nano starch, nano active carbon or nano silicon dioxide, and the white spirit, the acetic acid or the water and the perfluorinated silane, the mercaptan or the stearic acid are mixed according to the mass part ratio of 1-10: 100-500: 0.1-2.

3. The double-layer infiltrating functional textile surface mask sleeve according to claim 2, wherein the hydrophobic nano solution is prepared from nano starch, white spirit and perfluorosilane according to a mass ratio of 5: 200: 1, is prepared according to the proportion of 1.

4. The dual-layer infiltration functional textile surface mask cover of claim 1, wherein a U-shaped pocket made of transparent material is sewn near the sewn edge of the outer layer of the mask cover to accommodate a name card of the wearer, wherein the name card contains name and personal information for identification of the wearer.

5. The double-layered, infiltrative, functional textile surface mask cover according to claim 1, wherein the outer and inner infiltrative, functional surfaces of the mask cover may be re-sprayed with the hydrophobic nano solution for recycling after a period of time or after cleaning.