CN112656710B

CN112656710B - Mosquito-proof wet tissue and preparation process thereof

Info

Publication number: CN112656710B
Application number: CN202011618866.0A
Authority: CN
Inventors: 高腾; 沈云飞
Original assignee: Shaoxing Baixun Sanitary Products Co ltd
Current assignee: Shaoxing Baixun Sanitary Products Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-09-13
Anticipated expiration: 2040-12-30
Also published as: CN112656710A

Abstract

The application relates to the field of wet tissue, more specifically says, it relates to a mosquito-proof wet tissue and preparation technology thereof, specifically discloses a mosquito-proof wet tissue, include the non-woven fabrics and be used for infiltrating the wet tissue liquid of non-woven fabrics, wet tissue liquid includes that the raw materials of following parts by weight make: 10-15 parts of deet; 4-8 parts of citronellol; 8-10 parts of an antioxidant; 10-15 parts of a film forming agent; 200 portions of water and 250 portions of water. The application discloses mosquito-proof wet piece of cloth, it has the advantage of the mosquito-proof time that the extension wet piece of cloth scribbled to skin.

Description

Mosquito-proof wet tissue and preparation process thereof

Technical Field

The application relates to the field of wet tissues, in particular to an anti-mosquito wet tissue and a preparation process thereof.

Background

The wet tissue is an indispensable daily necessity for people as a daily skin cleaning product. Mosquitoes can transmit malaria, dengue fever and other diseases, and cause serious harm to human health. The anti-mosquito wet tissue has the characteristics of repelling mosquitoes, preventing disease transmission and the like, causes wide attention of consumers and is deeply favored by the consumers.

The Chinese invention patent with application publication number CN106619201A discloses an essential oil mosquito-proof wet tissue, which comprises the following components in percentage by mass: 5-10% of lavender essential oil, 2-8% of torreya essential oil, 1-10% of artemisia argyi oil, 0.4-0.6% of propylene glycol, 0.4-0.6% of glycerol and the balance EDI ultrapure water.

With respect to the related art in the above, the inventors consider that: after the wet tissue is applied to the skin, the mosquito-proof effect is lost in a short time, and the wet tissue needs to be repeatedly applied to ensure the mosquito-proof effect, so that the time is inconvenient.

Disclosure of Invention

In order to prolong the anti-mosquito time of the wet tissue smeared on the skin, the application provides the anti-mosquito wet tissue and a preparation process thereof.

The first aspect, this application provides a mosquito-proof wet piece of cloth, adopts following technical scheme:

the mosquito-proof wet tissue comprises non-woven fabrics and wet tissue liquid for infiltrating the non-woven fabrics, wherein the wet tissue liquid comprises the following raw materials in parts by weight:

by adopting the technical scheme, the synergistic effect is good after the combined action of the deet and the citronellol, the oxidation of the deet and the citronellol is delayed by the antioxidant, the deet, the citronellol and the antioxidant are coated into a film by the film forming agent, the oxidation and volatilization of the deet and the citronellol are further delayed to a certain degree, the mosquito prevention time of the wet tissue smeared on the skin is prolonged to a certain degree, the smearing times are reduced to a certain degree, and the operation is convenient.

Preferably, the film forming agent is prepared from the following raw materials in percentage by weight:

by adopting the technical scheme, the chitosan, the cetyl phosphate, the xanthan gum, the povidone, the acetamide, the arabic gum and the carboxymethyl cellulose have better film forming and moisturizing effects under the combined action, wherein the chitosan and the carboxymethyl cellulose also have better antibacterial effects, and the chitosan and the carboxymethyl cellulose have certain dirt cleaning effects, can adsorb dirt on the surface of the skin and reduce the dirt directly adhered to the surface of the skin.

After the wet tissue is smeared on the skin, a layer of protective film can be formed on the skin of a person, the oxidation and volatilization of the deet and the citronellol can be delayed to a certain extent, and the mosquito prevention time of the mosquito prevention wet tissue smeared on the skin once is prolonged.

Preferably, the antioxidant is prepared from the following raw materials in percentage by weight:

50% -60% of vitamin E;

20 to 25 percent of ditert-butyl-p-cresol;

20 to 25 percent of butyl hydroxy anisole.

By adopting the technical scheme, the combined action of the vitamin E, the di-tert-butyl-p-cresol and the butyl hydroxy anisole has better antioxidation effect, and the mosquito prevention time of the citronellol and the deet can be prolonged. Wherein, the vitamin E and the xanthan gum have better moisturizing and moistening effects on the skin after combined action.

And the butyl hydroxy anisole has better antibacterial effect after coaction with the chitosan and the carboxymethyl cellulose, and simultaneously, the butyl hydroxy anisole can enhance the thermal stability of the film forming agent to a certain extent, so that the film forming agent is still in a better film forming state under higher environment.

Preferably, the wet tissue liquid is prepared from the following raw materials in parts by weight:

by adopting the technical scheme, the eucalyptol, the limonene, the nonanal and the cinnamaldehyde provide pleasant fragrance for the wet tissue liquid, the limonene has a certain promotion effect on the antibacterial and antiseptic effects of the eucalyptol, and the alpha-phellandrene, the nonanal and the cinnamaldehyde have a better antibacterial effect after combined action.

Wherein the antioxidant delays the oxidation speed of cinnamaldehyde, nonanal, alpha-phellandrene and limonene to a certain extent, thereby prolonging the fragrance durability and the antibacterial effect.

Preferably, the wet tissue liquid further comprises 10-15 parts by weight of a coating agent for coating part of the diethyltoluamide, the citronellol and the antioxidant, wherein the diethyltoluamide, the citronellol and the antioxidant are coated by the coating agent to form microcapsule particles, and the coating agent comprises the following raw materials in percentage by weight:

by adopting the technical scheme, the anti-mosquito amine, the citronellol and the antioxidant are coated by the coating agent, so that when the wet tissue liquid is smeared on skin, partial microcapsule particles can be crushed, and partial anti-mosquito amine, citronellol and antioxidant are gradually dispersed in the wet tissue liquid, thereby achieving a better anti-mosquito effect; and with the increase of the time of smearing on the skin and the contact and friction of the skin, the residual microcapsule particles are gradually crushed, so that the effect of gradually releasing the deet, the citronellol and the antioxidant in the microcapsule particles is achieved. And when the microcapsule particles are broken, the coating agent can be fused with the film forming agent, so that the occurrence of film breakage is reduced to a certain extent. At the same time, when the film breaks, the microcapsule particles break, replenishing the film.

Wherein, sodium citrate and citric acid are used as buffering agents and can prevent the generation of precipitates to a certain extent.

And the citric acid has a better promoting effect on the butyl hydroxy anisole, so that the butyl hydroxy anisole has a stronger antibacterial effect.

Preferably, the microcapsule particle is prepared by the following steps:

the method comprises the following steps: dissolving deet, citronellol, vitamin E, di-tert-butyl-p-cresol and butyl hydroxy anisole in water, and performing ultrasonic dispersion for 20-30min to obtain a mixture a;

step two: adding gelatin, chitosan and sodium alginate into water at 50-60 ℃, stirring for 10-20min under the condition of 800-1000r/min to obtain a mixture b, adding the mixture a into the mixture b, performing ultrasonic dispersion for 20-30min to obtain a mixture c, adding citric acid and sodium citrate into the mixture c to adjust the pH value to 5-6, and adding sodium dodecyl benzene sulfonate to obtain a mixture d;

step three: ultrasonically dispersing the mixture d for 20-30min, and then performing complex coacervation for 30-40min to obtain a mixture e;

step four: and (4) dripping glutaraldehyde into the mixture e, crosslinking and curing for 60-80min to obtain microcapsule suspension, and drying to obtain microcapsule particles.

By adopting the technical scheme, the diethyltoluamide, the citronellol, the vitamin E, the di-tert-butyl-p-cresol and the butyl hydroxy anisole are dissolved in the water of the coating agent in the step one, and the substances are uniformly dispersed in the water through ultrasonic dispersion. And step two, adding gelatin, chitosan and sodium alginate into water at 50-60 ℃ to better disperse the gelatin, chitosan and sodium alginate into the water, adding the mixture a into the mixture b, performing ultrasonic dispersion, and emulsifying by sodium dodecyl benzene sulfonate. And then crosslinking and curing by adding glutaraldehyde to obtain microcapsule particles.

In a second aspect, the application provides a preparation process of a mosquito-proof wet tissue, which adopts the following technical scheme:

the preparation process of the mosquito-proof wet tissue comprises the following steps:

s1: preparing a film forming agent, namely stirring chitosan, cetyl phosphate, xanthan gum, povidone, acetamide, arabic gum and carboxymethyl cellulose for 10min under the condition that the rotation speed is 100-200r/min to obtain a mixture A, adding water with the temperature of 50-60 ℃ into the mixture A, and stirring for 20-30min under the condition that the rotation speed is 800-1000r/min to obtain a mixture B;

s2: preparing a wet tissue base solution, adding eucalyptol, limonene, alpha-phellandrene, nonanal and cinnamaldehyde into the mixture B, and stirring for 40-60min under the condition that the rotation speed is 800-1000r/min to obtain a mixture C, wherein the mixture C is the wet tissue base solution;

s3: preparing a wet tissue liquid, and dispersing microcapsule particles in a wet tissue base liquid to obtain the wet tissue liquid;

s4: spraying the wet tissue liquid onto the multi-layer non-woven fabric, and packaging to obtain the wet tissue.

By adopting the technical scheme, after the wet tissue liquid is smeared on the skin, the wet tissue base liquid and part of the broken microcapsule particles play a role in repelling mosquitoes and resisting bacteria, and the rest microcapsule particles are broken along with the prolonging of the service time, so that the diethyltoluamide, the citronellol and the antioxidant in the microcapsule particles are gradually released.

Preferably, in S4, drench wet piece of cloth liquid on the multilayer non-woven fabrics through the liquid feeding device, the liquid feeding device includes the frame and connects the shower in the frame, the shower stretches into between the multilayer non-woven fabrics, set up a plurality of liquid outlet holes that are used for going out the liquid on the shower, it is connected with the rotating tube to rotate on the outside wall of the shower, set up the play liquid group hole that is used for going out the liquid on the rotating tube.

Through adopting above-mentioned technical scheme, it is connected with the rotating tube to rotate on the lateral wall of the spray tube outside, at the removal in-process of wet piece of cloth non-woven fabrics, can drive the rotating tube and rotate, and the rotating tube rotates the back, can not only make liquid spray more even, can reduce the frictional force between wet piece of cloth non-woven fabrics and the rotating tube to a certain extent moreover, and then reduces the production of electric charge to a certain extent, reduces the influence to the interior component of liquid.

Preferably, the spraying pipe is connected with a shielding sleeve for shielding part of the liquid outlet holes, the shielding sleeve is positioned between the spraying pipe and the rotating pipe, and the shielding sleeve is provided with a connecting hole for communicating the liquid outlet holes and the liquid outlet group holes.

Through adopting above-mentioned technical scheme, shelter from the cover and shelter from the shower, increase the jet power from going out liquid group hole blowout wet tissue liquid to a certain extent, make wet tissue liquid get into wet tissue non-woven fabrics layer in situ better to shelter from the play liquid hole of shower both sides, make wet tissue liquid spout from both ends from top to bottom, spray the wet tissue non-woven fabrics layer of both ends process from the shower about.

Preferably, the liquid outlet group holes comprise a first hole and a second hole, the spraying directions of the first hole and the second hole are different when the first hole and the second hole rotate to the same position, the first holes are distributed along the axial direction of the rotating pipe, the first holes distributed along the same axial direction of the rotating shaft are in a first row, the second holes are distributed along the axial direction of the rotating pipe, and the second holes distributed along the same axial direction of the rotating shaft are in a second row; the first column and the second column are arranged at intervals; the diameters of the first hole and the second hole are gradually reduced in the direction from the inside of the rotating pipe to the outside of the rotating pipe.

Through adopting above-mentioned technical scheme, go out the liquid group hole and include first hole and second hole, and first hole and second hole rotate the direction of spraying that makes to same department different to first hole and the crisscross setting of second hole make spray wet piece of cloth liquid on wet piece of cloth non-woven fabrics layer more even to a certain extent, and shorten the time that sprays the non-woven fabrics layer to a certain extent. In the direction outside from rotating intraductal to rotating the outside of the tubes, the diameter in first hole and second hole reduces gradually, can not only strengthen the jet power of wet piece of cloth liquid to a certain extent, makes wet piece of cloth liquid get into wet piece of cloth non-woven fabrics in situ better to can reduce impurity and the cloth bits of getting into rotating the intraduct from first hole and second hole to a certain extent.

In summary, the present application has the following beneficial effects:

1. the synergistic effect is good after the synergistic effect of the deet and the citronellol, the oxidation of the deet and the citronellol is delayed through the antioxidant, the deet, the citronellol and the antioxidant are coated into a film through the film forming agent, the oxidation and volatilization of the deet and the citronellol are further delayed to a certain degree, the mosquito prevention time of the wet tissue smeared on the skin is prolonged to a certain degree, the smearing times are reduced to a certain degree, and the operation is convenient.

2. After the wet tissue is smeared on the skin, a layer of protective film can be formed on the skin of a person, the oxidation and volatilization of the deet and the citronellol can be delayed to a certain extent, and the mosquito prevention time of the mosquito prevention wet tissue smeared on the skin once is prolonged.

3. The eucalyptol, the limonene, the nonanal and the cinnamaldehyde provide pleasant fragrance for the wet tissue liquid, the limonene has a certain promotion effect on the antibacterial and antiseptic effects of the eucalyptol, and the alpha-phellandrene, the nonanal and the cinnamaldehyde have a better antibacterial effect after the combined action.

Drawings

FIG. 1 is a block diagram of a liquid adding device embodying the present application;

FIG. 2 is a schematic view of the construction of the rotation tube of FIG. 1;

FIG. 3 is an exploded view of the shower tube, the shield sleeve and the rotating tube;

fig. 4 is a sectional view taken along line B-B in fig. 2.

Description of the reference numerals: 1. a frame; 2. a shower pipe; 21. a liquid outlet hole; 22. a blocking sleeve; 23. connecting holes; 24. rotating the tube; 3. discharging a liquid group hole; 31. a first hole; 32. a second aperture.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples.

The deet is selected from Hezhou xi Lin medicine raw materials GmbH;

citronellol is selected from Shanghai Pont chemical industry Co., Ltd;

the chitosan is selected from Shanghai Zhitong chemical industry Co., Ltd;

cetyl phosphate is selected from Cippon group, Inc.;

the xanthan gum is selected from Shanghai Zhitong chemical Co., Ltd;

the polyvidone is selected from Nippon Huangshan mountain Sen New materials, Inc.;

the acetamide is selected from Shanghai Jinjinle industries, Ltd;

acacia gum is selected from the group consisting of memone biotechnology limited;

the carboxymethyl cellulose is selected from Centario chemical industry Co., Ltd;

vitamin E is selected from Zhejiang Xin & component GmbH;

the di-tert-butyl-p-cresol is selected from antioxidant 264 of Nanjing Rongji chemical Co;

the butyl hydroxy anisole is selected from Shanghai Bangheng chemical industry Co., Ltd;

eucalyptol is selected from the group consisting of Goodugent Biotechnology, Inc.;

the limonene is selected from Shanghai Bai chemical company, Ltd;

the alpha-phellandrene is selected from Hippocampus science and technology Co., Ltd;

the nonanal is selected from Shanghai koji chemical Co., Ltd;

the cinnamaldehyde is selected from Shanghai Jinjinle industries, Inc.;

the gelatin is selected from Centario chemical industry Co., Ltd;

the chitosan is selected from Shanghai Zhitong chemical industry Co., Ltd;

the sodium alginate is selected from Shanghai Jinjinle industry Co., Ltd;

the glutaraldehyde is selected from Shanghai Zhitong chemical Co., Ltd;

the sodium dodecyl benzene sulfonate is selected from Shanghai Jinjinle industry Co., Ltd;

the citric acid is selected from Shanghai Jinjinle industry Co., Ltd;

the sodium citrate is selected from Shanghai Jincony industries, Ltd.

Preparation example of microcapsule particles

Preparation examples 1 to 3

The method comprises the following steps: dissolving deet, citronellol, vitamin E, di-tert-butyl-p-cresol and butyl hydroxy anisole in water, and performing ultrasonic dispersion for 30min to obtain a mixture a;

step two: adding gelatin, chitosan and sodium alginate into water at 60 ℃, stirring for 15min at 900r/min to obtain a mixture b, adding the mixture a into the mixture b, performing ultrasonic dispersion for 25min to obtain a mixture c, adding citric acid and sodium citrate into the mixture c to adjust the pH value to be 6, and adding sodium dodecyl benzene sulfonate to obtain a mixture d;

step three: ultrasonically dispersing the mixture d for 25min, and then performing secondary coagulation for 25min to obtain a mixture e;

step four: and (4) dripping glutaraldehyde into the mixture e, crosslinking and curing for 70min to obtain microcapsule suspension, and drying to obtain microcapsule particles.

The weight parts of the added deet, citronellol, coating agent and antioxidant in preparation examples 1-3 are shown in Table 1, and the weight percentages of vitamin E, di-tert-butyl-p-cresol and butyl hydroxy anisole are shown in Table 1; the weight percentages of gelatin, chitosan, sodium alginate, sodium citrate, citric acid, glutaraldehyde, and sodium dodecylbenzenesulfonate are shown in table 2.

TABLE 1

TABLE 2

Examples

Examples 1 to 3

A preparation process of a mosquito-proof wet tissue comprises the following steps:

s1: selecting a commercially available film forming agent (a pure acrylic emulsion thickener of Guangdong New materials Co., Ltd.), and selecting a commercially available antioxidant (an antioxidant BHT of Shandong broad spring Biotechnology Co., Ltd.);

s2: preparing a wet tissue base solution, and stirring delphene, citronellol, an antioxidant, a film forming agent and water at the rotating speed of 900r/min for 50min to obtain the wet tissue base solution;

The weight parts of the DEET, citronellol, antioxidant, film former and water added in examples 1-3 are shown in Table 3.

TABLE 3

Examples 4 to 6

Examples 4-6 differ from example 1 in the film former used in examples 4-6.

s1: preparing a film forming agent, stirring chitosan, cetyl phosphate, xanthan gum, povidone, acetamide, arabic gum and carboxymethyl cellulose for 10min under the condition that the rotation speed is 100r/min to obtain a mixture A, adding water with the temperature of 50 ℃ into the mixture A, and stirring for 25min under the condition that the rotation speed is 900r/min to obtain a mixture B;

s2: preparing a wet tissue base solution, and stirring delphene, citronellol, an antioxidant (antioxidant BHT of Shandong Kuoquan Biotechnology Co., Ltd.), the mixture B and water at a rotation speed of 900r/min for 50min to obtain the wet tissue base solution;

Among them, the weight percentages of chitosan, cetyl phosphate, xanthan gum, povidone, acetamide, gum arabic, carboxymethyl cellulose, and water added in examples 4 to 6 are shown in table 4.

TABLE 4

Examples 7 to 9

Examples 7-9 differ from example 6 in the antioxidant used in examples 7-9.

s2: preparing a wet tissue base solution, and stirring diethyltoluamide, citronellol, vitamin E, di-tert-butyl-p-cresol, butyl hydroxyanisole, the mixture B and water for 50min at the rotation speed of 900r/min to obtain the wet tissue base solution;

Wherein, the weight percentages of vitamin E, di-tert-butyl-p-cresol, and butyl hydroxy anisole added in examples 7-9 are shown in Table 5.

TABLE 5

Examples 10 to 12

Examples 10 to 12 differ from example 7 in that eucalyptol, limonene, alpha-phellandrene, nonanal, cinnamaldehyde were added to examples 10 to 12.

s2: preparing a wet tissue base solution, and stirring deet, citronellol, vitamin E, di-tert-butyl-p-cresol, butyl hydroxy anisole, eucalyptol, limonene, alpha-phellandrene, nonanal, cinnamaldehyde, a mixture B and water at the rotation speed of 900r/min for 50min to obtain the wet tissue base solution;

Wherein, the weight portions of eucalyptol, limonene, alpha-phellandrene, nonanal and cinnamaldehyde added in examples 10 to 12 are shown in Table 6.

TABLE 6

Examples 13 to 15

Examples 13-15 differ from example 10 in that microcapsule particles were added to examples 13-15.

S1: preparing a film forming agent, namely stirring chitosan, cetyl phosphate, xanthan gum, povidone, acetamide, arabic gum and carboxymethyl cellulose for 10min under the condition that the rotating speed is 100r/min to obtain a mixture A, adding water with the temperature of 50 ℃ into the mixture A, and stirring for 25min under the condition that the rotating speed is 900r/min to obtain a mixture B;

s2: preparing a wet tissue base solution, adding eucalyptol, limonene, alpha-phellandrene, nonanal and cinnamaldehyde into the mixture B, and stirring for 50min at the rotation speed of 900r/min to obtain a mixture C, wherein the mixture C is the wet tissue base solution;

s3: preparing a wet tissue liquid, dispersing microcapsule particles in a wet tissue base liquid, and stirring for 10min under the condition that the rotating speed is 100r/min to obtain the wet tissue liquid;

Among them, the microcapsule particles used in examples 13 to 15 are shown in Table 7.

TABLE 7

Examples	Preparation examples
		Example 13	Preparation example 1
Example 14	Preparation example 2
		Example 15	Preparation example 3

Example 16

Example 16 differs from example 13 in that in example 16 chitosan, cetyl phosphate, povidone, acetamide, gum arabic and carboxymethylcellulose are replaced by xanthan gum.

Example 17

Example 17 differs from example 13 in that in example 17 chitosan and carboxymethyl cellulose were replaced with xanthan gum.

Example 18

Example 18 differs from example 13 in that in example 18 di-tert-butyl-p-cresol and butyl hydroxyanisole are replaced by vitamin E.

Example 19

Example 19 differs from example 13 in that in example 19 di-tert-butyl-p-cresol was replaced with vitamin E.

Example 20

Example 20 differs from example 13 in that in example 20 butyl hydroxyanisole is replaced by vitamin E.

Example 21

Example 21 differs from example 13 in that vitamin E was replaced with di-tert-butyl-p-cresol in example 21.

Example 22

Example 22 differs from example 13 in that in example 22 limonene is replaced with eucalyptol.

Example 23

Example 23 differs from example 13 in that in example 23 α -phellandrene and nonanal were replaced with cinnamaldehyde.

Example 24

Example 24 differs from example 13 in that in example 24 α -phellandrene and cinnamaldehyde were replaced with nonanal.

Example 25

Example 25 differs from example 13 in that in example 25 cinnamaldehyde and nonanal are replaced with α -phellandrene.

Example 26

Example 26 differs from example 13 in that in example 26 citric acid and sodium citrate are replaced with phosphoric acid and sodium phosphate.

Comparative example

Comparative example 1

Comparative example 1 differs from example 1 in that no diethyltoluamide was added to comparative example 1.

Comparative example 2

Comparative example 2 example 1 differs in that no citronellol was added to comparative example 1.

Comparative example 3

Comparative example 3 example 1 differs in that no antioxidant is added to comparative example 1.

Comparative example 4

Comparative example 4 example 1 differs in that no film former is added to comparative example 1.

In step S4 of examples 1 to 15 and comparative examples 1 to 4, the wet towel liquid was showered onto the multi-layered nonwoven fabric by a liquid adding device.

Referring to fig. 1, the wet towel liquid adding device comprises a frame 1.

Referring to fig. 2 and 3, a spraying pipe 2 is connected to the frame 1, the spraying pipe 2 is horizontally arranged, and the wet tissue liquid of the spraying pipe 2 is sprayed onto the wet tissue non-woven fabric.

Referring to fig. 2 and 3, a plurality of liquid outlet holes 21 have been seted up on the 2 lateral walls of shower, and shower 2 stretches into between the wet piece of cloth non-woven fabrics of multilayer, fixedly connected with shelters from cover 22 that is used for sheltering from 2 left and right sides liquid outlet holes 21 of shower on the 2 lateral walls of shower, shelters from that cover 22 inside wall and 2 lateral walls of shower paste tightly. The shielding sleeve 22 is provided with a connecting hole 23 communicated with the liquid outlet hole 21, and the connecting hole 23 is positioned at the upper end and the lower end of the shielding sleeve 22.

Referring to fig. 2 and 3, a rotating pipe 24 is rotatably connected to an outer side wall of the blocking sleeve 22 through a bearing, and an outer side wall of the rotating pipe 24 is in contact with the non-woven fabric of the wet towel.

Referring to fig. 2 and 4, a liquid outlet group hole 3 for discharging liquid is formed in the rotating pipe 24, the liquid outlet group hole 3 includes a first hole 31 and a second hole 32, the spraying directions of the first hole 31 and the second hole 32 when rotating to the same position are different, the first hole 31 is axially distributed along the rotating pipe 24, and the first holes 31 axially distributed along the same axis of the rotating shaft are in a first row. The second holes 32 are axially spaced along the rotatable shaft 24, and the second holes 32 are in a second row along the same axis of rotation. The first column and the second column are arranged at intervals.

Referring to fig. 2 and 4, the first hole 31 and the second hole 32 communicate with the liquid outlet hole 21 through the connection hole 23. The diameters of the first hole 31 and the second hole 32 are gradually reduced in a direction from inside the rotation tube 24 to outside the rotation tube 24.

Performance test

1. Repelling time test

(1) Attack force test

300 about Aedes albopictus mosquitoes are placed in a mosquito cage (35cm multiplied by 35cm), an Kunming mouse is placed to remove the hairs on the abdomen (40mm multiplied by 40mm), the rest parts are tightly shielded, within 2min, 10% of mosquitoes stop falling and absorb blood, which represents that the offensive power is qualified, and the cage mosquitoes can be used for measuring the mosquito repelling time.

(2) Determination of repelling time

According to the ninth part of the pesticide laboratory efficacy test and evaluation for pesticide registration: the repellent GB/T13917.9-2009 requires, and the repellent time is measured: selecting 6 Kunming mice (female and male half), removing hair from abdomen (40mm × 40mm), uniformly smearing 1.0g of wet towel solution, and tightly shielding the rest parts; the mice were placed in mosquito cages with qualified offensive power, and the presence or absence of mosquito stopping and blood sucking was observed every 30min for 1 time, 5min for each observation, and whether there was mosquito sucking within 5min, and the complete effective repelling time of the test substances was recorded in table 8.

Second, antibacterial test

(1) Preparation of test bacterial suspension and a bacterial infection carrier, three test bacteria are subjected to isolated culture, escherichia coli, staphylococcus aureus common agar slant culture medium and candida albicans sandcastle slant culture medium are taken, fresh culture is carried out at 37 ℃ for 18-24 hours, bacterial lawn is washed by Phosphate Buffer Solution (PBS), after the bacteria are fully shaken to be evenly suspended, the diluted solution is used for diluting to the concentration required by use, and the test bacterial suspension is prepared.

(2) The wet tissue sample piece is cut into a sample with the size of 10mm multiplied by 10mm, 0.75g of the sample is weighed into a 250ml triangular flask, and 70ml of PBS and 5ml of bacterial suspension (the final concentration is 1 multiplied by 104 cfu/ml-5 multiplied by 104cfu/ml) are added. Fixing the Erlenmeyer flask on a shaking table, shaking at 20 deg.C and 300r/min for 60min, collecting supernatant or diluting, and performing viable bacteria count culture by pouring plate method; the positive control adopts a blank wet tissue. And observing the result after culturing, counting the total number of bacteria and calculating the bacteriostasis rate. The experiment was repeated 3 times. The bacteriostatic rate was calculated as follows: the bacteriostatic ratio (%) (number of positive control bacteria-number of surviving bacteria/number of positive control bacteria after test) × 100%, and the bacteriostatic ratio was filled in table 8.

TABLE 8

As can be seen by combining examples 1-6 with Table 8, the repelling time of examples 4-6 was longer than that of examples 1-3, and the antibacterial effect of examples 4-6 was superior to that of examples 1-3.

As can be seen by combining examples 4-9 with Table 8, the repelling time was greater for examples 7-9 than for examples 4-6, and the antimicrobial effect of examples 4-6 was less different than the antimicrobial effect of examples 7-9.

As can be seen by combining examples 7-12 with Table 8, the repelling time of examples 7-9 is equivalent to that of examples 10-12, and the antibacterial effect of examples 10-12 is better than that of examples 7-9.

As can be seen by combining examples 10-15 with Table 8, the repelling time of examples 13-15 was greater than that of examples 10-12, and the antibacterial effect of examples 13-15 was comparable to that of examples 10-12.

As can be seen by combining example 13, examples 16-17, and Table 8, the repellency times for examples 16-17 were less than the repellency times for example 13.

As can be seen by combining example 13, examples 22 to 26 and Table 8, the antibacterial effects of examples 22 to 26 are inferior to those of example 13.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. The mosquito-proof wet tissue is characterized by comprising non-woven fabrics and wet tissue liquid for infiltrating the non-woven fabrics, wherein the wet tissue liquid comprises the following raw materials in parts by weight:

the film forming agent is prepared from the following raw materials in percentage by weight:

the antioxidant is prepared from the following raw materials in percentage by weight:

50% -60% of vitamin E;

20 to 25 percent of ditert-butyl-p-cresol;

20% -25% of butyl hydroxy anisole;

the wet tissue liquid is prepared from the following raw materials in parts by weight:

the wet tissue liquid also comprises 10-15 parts by weight of a coating agent for coating part of deet, citronellol and an antioxidant, wherein the deet, citronellol and antioxidant are coated by the coating agent to form microcapsule particles, and the coating agent comprises the following raw materials in percentage by weight:

the microcapsule particle is prepared by the following steps:

step two: adding gelatin, chitosan and sodium alginate into water at 50-60 ℃, stirring for 10-20min under the condition of 800-1000r/min to obtain a mixture b, adding the mixture a into the mixture b, performing ultrasonic dispersion for 20-30min to obtain a mixture c, adding citric acid and sodium citrate into the mixture c to adjust the pH value to be 5-6, and adding sodium dodecyl benzene sulfonate to obtain a mixture d;

step four: dripping glutaraldehyde into the mixture e, crosslinking and curing for 60-80min to obtain microcapsule suspension, and drying to obtain microcapsule particles;

s2: preparing a wet tissue base liquid, adding eucalyptol, limonene, alpha-phellandrene, nonanal and cinnamaldehyde into the mixture B, and stirring for 40-60min under the condition that the rotation speed is 800-;

s4: spraying the wet tissue liquid on the multi-layer non-woven fabric, and packaging to obtain the wet tissue;

in the step S4, the wet tissue liquid is sprinkled on the multiple layers of non-woven fabrics through a liquid adding device, the liquid adding device comprises a rack and a spraying pipe connected to the rack, the spraying pipe extends into the multiple layers of non-woven fabrics, a plurality of liquid outlet holes for discharging liquid are formed in the spraying pipe, a rotating pipe is rotatably connected to the outer side wall of the spraying pipe, and liquid outlet group holes for discharging liquid are formed in the rotating pipe;

the spraying pipe is connected with a shielding sleeve for shielding part of the liquid outlet holes, the shielding sleeve is positioned between the spraying pipe and the rotating pipe, and the shielding sleeve is provided with a connecting hole for communicating the liquid outlet holes with the liquid outlet group holes; the connecting holes are positioned at the lower end of the shielding sleeve;

the liquid outlet group holes comprise a first hole and a second hole, the spraying directions of the first hole and the second hole when the first hole and the second hole rotate to the same position are different, the first hole is axially distributed along the rotating pipe, the first holes which are axially distributed along the same axis of the rotating shaft are in a first row, the second holes are axially distributed along the rotating pipe, and the second holes which are axially distributed along the same axis of the rotating shaft are in a second row; the first column and the second column are arranged at intervals; the diameters of the first hole and the second hole are gradually reduced in the direction from the inside of the rotating pipe to the outside of the rotating pipe.