CN101797200A - Absorbent article with anti-mosquito agent and preparation method thereof - Google Patents

Abstract

The invention relates to a daily absorbent article, belongs to the technical field of daily articles, and particularly relates to a disposable absorbent article with an anti-mosquito agent and a preparation method thereof. The liquid-tight bottom layer of the absorbing article is finished by the anti-mosquito agent, and an anti-mosquito drug film is formed on the outer surface of the liquid-tight bottom layer; the mosquito repellent medicine film can give off offensive odor of blood-sucking animals such as mosquitoes, and the like, so that the blood-sucking animals such as the mosquitoes and the like do not want to stay on an absorbing article containing the mosquito repellent or in an area giving off the odor to escape. The vapor pressure of the mosquito repellent is 0.01-1.0 Pa (25 ℃) through component design of the mosquito repellent, the mosquito repellent is suitable for volatilization at normal temperature, the drug effect of the mosquito repellent is durable, the mosquito repellent has a good repellent effect on blood-sucking animals such as mosquitoes and the like, the volatile concentration of the mosquito repellent in a range of 2m of a wearer can be ensured to achieve the effect of repelling the mosquitoes, and the mosquito repellent has no side effect on a human body and ensures that the wearer is not interfered by the mosquitoes all night.

Description

An absorbent article with an anti-mosquito agent and its preparation method

Technical field:

The invention relates to an absorbent article for daily use, which belongs to the technical field of daily articles, in particular to a disposable absorbent article with an anti-mosquito agent and a preparation method thereof.

Background technique:

With the improvement of living standards, people's demand for disposable absorbent articles is no longer satisfied with the simple urine absorption function, and the demand has begun to show multi-functionality. Diapers have developed from the humble first generation to the sixth generation. The functions of products are becoming more and more diversified. Various manufacturers are also committed to diversifying the design of diaper products: elastic waist, elastic big ears and other elastic functional designs suitable for large waists, skin care and Functional design of sterilizing aloe vera and antibacterial surface material, moisture permeability design such as highly breathable and highly breathable bottom film, and functional reminder design such as urine wetness display. Many various designs show that the design of disposable diapers in the future will inevitably show more functionalization.

Mosquitoes and other blood-sucking animals, in addition to directly biting and sucking blood, disturbing the peaceful work and living atmosphere, can also infect many serious diseases, such as dysentery, dengue fever, Japanese encephalitis, lymphatic filariasis, yellow fever, equine encephalitis, etc. Inflammation, etc., seriously endanger human health. According to statistics, more than 1 million people die from mosquito-borne diseases every year. Prevention and control of the spread of mosquito-borne diseases is an important public health issue of global concern. Reducing the incidence of mosquito-borne diseases and reducing the burden of mosquito-borne diseases has been included in the United Nations Millennium Development Goals.

At present, the more mature anti-mosquito methods are mainly used in two ways. The first method is to repel or kill mosquitoes in the environment. This method is easy to use and economical, but the effect is not long-lasting and needs to be used frequently. And the smog or medicine released by mosquito coils or insecticidal aerosols will cause certain damage to the human body, so it is not suitable for regular use. The second method is to process the textiles that are often in contact with the human body to make it have a durable anti-mosquito effect. This method is simple to operate, convenient to use, and has mature technology. After a long production time, it has been proved to have a good anti-mosquito effect, and it is resistant to multiple washings, and it is non-toxic and harmless to the human body.

There are many kinds of compounds with repellent and mosquito-killing effects, but the effects are quite different. Ideal repellents and insecticides are highly efficient, fast, harmless to human body, non-irritating to the skin, and have no unpleasant smell. Stability, low price, easy to use and so on.

The repellent itself has no insecticidal effect. It is generally believed that its mechanism of repelling mosquitoes is because the repellent has an odor that mosquitoes hate, making them unwilling to stop and run away in places containing repellent, which is beneficial to prevent mosquito bites and invasion. Another point of view is that the repellent effect is probably due to the fact that the molecules of the mosquito repellent compound block the small holes in the hairs of the mosquito's sensory organs, so that the mosquito loses the ability to track the heat and moisture emitted by the human body, so it cannot Correctly find the target object.

The commonly used repellent is p-mentane-3,8-diol, which is a light yellow waxy substance, hardly soluble in water, but easily soluble in organic solvents. In addition, menthenediol, 4-terpene propanol, 2,5-xylene-2,5 hexanediol, menthanol compounds, benzene carboxylate compounds, benzoic acid amine compounds, etc. Mosquito repellant.

Pesticides mainly kill pests through contact and fumigation. Although there are many kinds of insecticides, among the hygienic insecticides currently used to kill insects such as mosquitoes and flies, pyrethroids are the most respected. Pyrethroids are a class of compounds that have developed rapidly in the past forty years. It is a new type of hygienic insecticide that simulates the chemical structure of natural pyrethrins and is artificially synthesized. It has the characteristics of fast knockdown, wide insecticidal spectrum, high efficacy, etc., has repellent effect on insects, low toxicity to human body, easy biodegradation, no toxic residues after biodegradation, in addition, the physical and chemical properties of pyrethroids It is also ideal and suitable for making various types of preparations. Among pyrethroid compounds, tetramethrin is most suitable for fabric or fiber materials to prevent mosquitoes. Pure tetramethrin is a white crystal, insoluble in water, soluble in organic solvents, and has a very fast knockdown effect on insects. Store at room temperature The quality remains the same for three years.

CN101187158 discloses an anti-mosquito finishing agent and its preparation method and the anti-mosquito fabric prepared by using the anti-mosquito finishing agent, wherein the anti-mosquito finishing agent is made of compounds containing dextrin, mosquito repellent, surfactant, buffer, catalyst, The composition of the cross-linking agent is that the finishing agent can be prepared by encapsulating the mosquito repellent in the cavity of the dextrin compound, then using the imidazole resin as the cross-linking agent, and adding other appropriate additives. The aqueous solution of the anti-mosquito finishing agent is subjected to a padding-pre-baking-baking process, and the anti-mosquito finishing agent can be finished into the cloth through a chemical cross-linking method to obtain the anti-mosquito fabric. In order to further improve the advantages of safety, long-lasting anti-mosquito effect, and strong wearing comfort, the fabric can be widely used to make various anti-mosquito fabrics, and has good social value and economic benefits.

CN1033736A discloses a net fabric with mosquito repelling function, which can be used as a mosquito repelling net fabric for personal mosquito and midge prevention indoors and outdoors. He basically dipped cotton gauze in a solution of the drug. Its medicinal ingredients are composed of repellent, synergist, macromolecule protective agent, acetone and ethanol. The net fabric can be made into hats, gloves, socks, vests, door curtains and cover sheets, etc., and its effective time is about 4 months each time. It can be properly washed and exposed to the sun without causing harm to the human body.

CN1468983A discloses a polypropylene fiber with mosquito repellent function. The polypropylene fiber is obtained by uniformly mixing polypropylene resin and mosquito repellant, melting and granulating, and then melt spinning. The fiber uniformly contains mosquito repellent, and the fiber contains The content of mosquito repellent is controlled at 1.0 to 3.0%, and the mosquito repellent is derived from one compound or a mixture of two or more compounds in dimethyl phthalate, triclosulphate or methothrin, and the fiber can be It is pre-oriented yarn POY with a linear density of 1.0-4.0dtex, or further processed into drawn yarn DT or elastic yarn DTY with a linear density of 0.5-3.0dtex, or short fibers with a linear density of 1.0-4.0dtex, Compared with the prior art, the invention has the advantages that the mosquito repellent is evenly present in the fiber instead of just adhering to the surface, and the washing resistance is obviously improved.

CN1267494A discloses a mosquito-repelling and insect-repelling mosquito net and a production method thereof. A layer of mixed reactants including dimethyl phthalate and DEET is attached to the mosquito net. The production method is as follows: firstly, chemical raw materials including dimethyl phthalate and insect repellent are mixed, and the reactants after mixing are mixed with water at a ratio of 50% by weight to make a solution; the solution is heated to 60 -100°C; put the mosquito net into the solution for immersion and stirring; use white latex and polyvinyl alcohol to make an adhesive, put the immersion treated mosquito net into the debonding agent and stir, cover and glue, and finally dry deal with.

Various diaper manufacturers are committed to the research and development of new functional absorbent articles, but so far no absorbent articles that repel mosquitoes have been found. The mosquito repellent function is also a development trend of multi-functional demand for diapers.

Invention content:

The purpose of the present invention is to overcome the disadvantages of the above-mentioned prior art, and to provide an absorbent article with simple structure, low manufacturing cost, and the function of mosquito repellent and its preparation method. The absorbent article has an ideal repelling effect on mosquitoes, sandflies, ticks, chiggers and other blood-sucking insects, and can effectively prevent mosquito bites.

In order to achieve the above object, the present invention adopts following technical scheme:

(1) a mosquito repellent, which comprises the following components by weight:

2% to 15% essential oil, 5% to 15% mosquito repellent, 1% to 5% insecticide, 5% to 10% slow release agent, 40 to 60% ethanol, and appropriate amount of deionized water.

The essential oil is a kind of essential oil, which is one of the most important commercial forms of natural plant spices. It is made from flowers, roots, leaves, stems, branches, wood, bark, seeds or secretions of spice plants. After distillation, Fragrant essential oils extracted by dry distillation, extraction, pressing and other processes. For example, one or more combinations of peppermint oil, geranium oil, bark oil, camphor oil, lemongrass oil, and lavender oil are preferred.

Described peppermint oil is a kind of colorless or pale yellow clear liquid. It has a special cool aroma, tastes pungent at the beginning, cools later, and the color gradually becomes darker after being stored for a long time. It can be arbitrarily mixed with ethanol, chloroform or ether, the relative density should be 0.888-0.908, and the refractive index should be 1.456-1.466. Peppermint oil can eliminate nausea, tension and tension headaches; it can reduce fever and mosquitoes.

The main components of the geranium oil are geraniol, citronellol, linalool (linalool) and phenylethyl alcohol, etc., which can be used as a substitute for rose oil, used to prepare essence, and used as food, scented soap and toothpaste and other additives. Geranium oil fights fatigue and trauma, and also repels mosquitoes.

The litsea cubeba oil is a light yellow to yellow clear liquid, which is mainly obtained by steam distillation of the fruit of the lauraceae plant litsea cubeba, with a yield of about 3% to 6%. The main component is citral, the content is about 70%-80%. Other ingredients include methylheptenone, citronellal, pinene, limonene, geraniol, terpineol, geranyl acetate, etc.; it has a fresh and sweet fruity aroma, with a sour lemon-like smell, not as good as lemongrass The oil has good aroma, strong but not persistent; Relative density: 0.882～0.905; Boiling point: 232°C; Refractive index: 1.4810～1.4880; Optical rotation: +5～+35 (20°C); Flash point: 130°F.

The camphor oil is a colorless or light yellow to reddish-brown oily liquid with a strong camphor smell, is freely miscible with ethanol and ether, has a relative density of 0.875-0.900, and a refractive index (20° C.) of 1.465-1.481. Optical rotation (20°C) +9°～+24°, the special fragrance of camphor oil, in addition to repelling insects and mosquitoes, also has the functions of healing wounds, deodorization, etc., and has a wide range of uses.

The citronella oil is pale yellow to pale brown clear liquid. The relative density of citronella oil is 0.880-0.895, and the refractive index is 1.466-1.473. The main ingredients are citronellal, geraniol, citronellol, citral, citronellene, etc. Lemongrass oil has a strong grassy aroma and is widely used in perfumes, soaps, lotions, lighteners, cleansers and deodorants, cosmetics, and it also adds an attractive aroma to certain Chinese dishes.

The main component of described lavender oil is linalyl acetate, and this compound has a sedative effect on people. It is mild in nature, fragrant in smell, calms the mind, helps sleep, reduces high blood pressure, and calms heart palpitations. Promote cell regeneration, remove freckles, sterilize, reduce inflammation, relieve itching, and have good anti-inflammatory and bactericidal effects on dermatitis, acne, herpes, and beriberi.

The mosquito repellent is preferably one or a combination of N,N-diethyl-m-toluamide (DEET), benzyl benzoate, and dimethyl phthalate.

Described N, N-diethyl m-toluamide (DEET) is light yellow liquid, has light citrus fragrance smell, and its boiling point is 111 ℃ (1mmHg), vapor density 6.7 (vs air), density 0.998 g/mLat 20°C, vapor pressure <1.3Pa/25°C, refractive index n ²⁰ / _D 1.523, flash point >230°F. The isotonic specific volume (90.2K) is 475.1, the polarizability (0.510-24cm ³ ) is 23.28, and the surface tension (3.0dyne/cm) is 35.9. Due to its unique molecular structure, shape and volume, it can block the mosquito's sensory organs so that it cannot find the host, thus playing a repellent role.

Described benzyl benzoate is a kind of colorless viscous liquid. Exist in Peru balsam, Tolu balsam and ylang-ylang oil. Has a faint pleasant aroma. Insoluble in water and glycerin, soluble in ethanol, ether and chloroform. It is used as a solvent for musk and as a fixative for essence, as a substitute for camphor (in celluloid), and for the preparation of pertussis and asthma medicines. From benzoic acid methyl ester and excess benzyl alcohol by transesterification, or from benzoic acid sodium and benzyl chloride role in the system.

The dimethyl phthalate is a colorless, transparent, yellowish oily liquid with a slight aroma and a boiling point of 283.7°C. It can be miscible with general organic solvents such as ethanol and ether, but insoluble in water and petroleum ether. It can be used as a solvent for mosquito repellent oil (crude oil), polyvinyl fluoride paint, methyl ethyl ketone peroxide and DDT.

The insecticide mainly kills pests through contact killing and fumigation. Although there are many kinds of insecticides, among the hygienic insecticides currently used to kill insects such as mosquitoes and flies, pyrethroids are the most respected. Among pyrethroid compounds, tetramethrin is the most suitable for mosquito repellent finishing of fabrics or fiber materials.

Tetramethrin is a pyrethroid insecticide, and its pure product is white crystal with a pyrethrum-like odor. It is a yellow paste or solidified solid, specific gravity (20°C) 1.108, boiling point 185-190°C (0.1mmHg), melting point 60-80°C, flash point above 200°C, vapor pressure (20°C) 4.7*10-6Pa, The solubility in water (30°C) is only 4.6mg/kg. Soluble in acetone, benzene and xylene. Stable under weakly acidic conditions. Tetramethrin does not lose its biological activity when stored at 50°C for 6 months.

Tetramethrin is one of the main insecticides recommended by the World Health Organization for public health. It can be used for extermination and repelling of public health pests such as mosquitoes, flies, cockroaches, bedbugs, fleas, lice, midges, moths, spiders, cigarette beetles, grain weevils, aphids, mosquitoes, wasps, crickets, etc. . The effect of using alone is not obvious, and it should be mixed with other hygienic insecticides with strong insecticidal power.

The sustained-release agent is an alcohol-soluble polymer material, preferably one or a combination of polyvinyl alcohol and acrylate.

Polyvinyl alcohol (PVA for short) is a white powder in appearance. It is a water-soluble polymer with a wide range of uses. Its performance is between plastics and rubber. Its use can be divided into two major uses: fiber and non-fiber.

The polymer of acrylate has the structure that R is an organic group such as a methyl group, and a series of polyacrylates can be obtained with different R, and the properties are also different. Polymethylacrylate is non-tacky, strong, slightly elastic, and medium hardness at room temperature. Polyethyl acrylate is softer than methyl ester, and its elongation resistance is about 2.5 times that of polymethyl acrylate. Polyacrylate is easily soluble in solvents such as acetone, ethyl acetate, and dichloroethane, but not easily soluble in water. Due to the flexibility of the polymer chain, its glass transition temperature is low and varies with the carbon content of R. This type of polymer can form a water-resistant film with good gloss, strong adhesion, not easy to peel off, flexible and elastic at room temperature.

(2) Mosquito repellent finishing of film or non-woven fabric

Dissolve the sustained-release agent in ethanol according to the proportion, add mosquito repellent and insecticide, stir and mix, then add essential oil, and add appropriate amount of deionized water to adjust the viscosity. A liquid-impermeable bottom layer with the function of repelling mosquitoes is prepared by rolling coating and drying the mosquito repellent finishing agent on the film or non-woven material.

(3) Preparation of disposable absorbent articles with anti-mosquito function

Disposable absorbent articles consist of a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent core disposed between the topsheet and the backsheet. The liquid-permeable top layer is hot-rolled, hot air, hydrophilic spunbond, perforated hot air, perforated hydrophilic spunbond non-woven fabric, and the material of this layer is required to be able to quickly absorb urine, with a gram weight of 20-35g /m2, the penetration time is 1.5-3.5s. The absorbent core is a mixed core of absorbent polymer and fluff pulp, and the ratio of absorbent polymer to the core is 15-65%. The fluff pulp has a grammage of 600-800g/m2, a moisture content of 2-10%, a hardness of 1000-1300Kpa, and a crushing energy of 100-120Kj/Kg. The absorbent polymer has a urine absorption rate of 45-65g/g; a urine retention capacity of 25-40g/g; a urine absorption rate of 25-70s; and a urine absorption rate of 5-60s under 0.3psi pressure. 40g/g. The wrapping layer 2 of the absorbent core 3 is toilet paper or non-woven fabric, wherein the toilet paper is prepared from virgin wood pulp through a wet papermaking process. There are a large number of cellulose hydroxyl groups in the structure of the virgin wood pulp, and the toilet paper has very good hydrophilicity and The ability of dredging liquid; its grammage is 15-35g/m2, and its wet strength is 0.6-2.5N/15mm; ～25g/m2, penetration time is 1.5～3.5s. The impermeable bottom layer is a composite bottom film of the above-mentioned mosquito-repellent-finished film and non-woven fabric, and the mosquito-repellent finishing agent is coated on the outside of the bottom film and the inside of the non-woven fabric on the bottom film. The film is an air-tight cast film or an air-permeable cast film, the air-tight cast film is 12-30gsm, and the tensile force is 1.5-5.0N/25mm in the transverse direction and 6.0-10.0N/25mm in the longitudinal direction; The air-permeable casting film is 12-35gsm, the air permeability is 1800-3500g/24h/m2 (positive cup method), the breaking force is 1.5-4.0N/25mm in the transverse direction, 5.0-10.0N/25mm in the longitudinal direction, and the elongation is The transverse direction is 200-400%, the longitudinal direction is 100-250%, and the tear strength is 10-20 N/mm in the transverse direction. The spun-bonded non-woven fabric is PP long-fiber hot-rolled fabric, the grammage is 10-20gsm, and the breaking force is 15-30N/25mm in the longitudinal direction and 5-15N/25mm in the transverse direction. The layers are bonded by hot-melt adhesive, and the amount of hot-melt adhesive sprayed between the layers is 1.0-3.0 g/m2.

Description of drawings:

Accompanying drawing 1 is schematic diagram of the present invention

Accompanying drawing 2 is to use the test effect figure of the present invention

Detailed ways:

Implementation mode 1:

Mosquito Repellent Formula:

Component Wt.%

Peppermint Oil 5%

Geranium oil 3%

N, N-diethyl-m-toluamide (DEET) 2.5%

Benzyl benzoate 8%

Tetramethrin 3%

Polyvinyl alcohol (PVA) 10%

Ethanol 50%

Deionized water 18.5%

Preparation of non-woven fabric with anti-mosquito function:

Dissolve polyvinyl alcohol in ethanol according to the proportion, add repellent and insecticide, stir and mix, then add essential oil, add appropriate amount of deionized water to adjust viscosity. A liquid-impermeable bottom layer with the function of repelling mosquitoes is obtained by rolling coating and drying the mosquito repellent finishing agent on the film or non-woven material. The oiling rate is 0.5%, the drying temperature is 150°C, and the line speed is 80m/min.

Preparation of diaper with mosquito repellent function:

Referring to accompanying drawing 1, the disposable absorbent article of the present invention comprises a liquid-permeable top layer 1, a liquid-impermeable bottom layer 4 and an absorbent core 3 disposed between the top layer 1 and the bottom layer 4. The permeable top layer 1 is a 20g/m ² air-through non-woven fabric, and the material of this layer is required to absorb urine quickly, and the penetration time is 1.5-3.5s. The absorbent core 3 is a mixed core of absorbent polymer and fluff pulp, and the ratio of absorbent polymer to the core is 40%. The fluff pulp has a grammage of 700g/m ² and a moisture content of 8%. The absorbent polymer has a urine absorption rate of 60g/g; a urine retention capacity of 35g/g; a urine absorption rate of 30s; and a urine absorption rate of 10g/g under 0.3psi pressure. The wrapping layer 2 of the absorbent core 3 is 18 g/m ² toilet paper. The impermeable bottom layer 4 is a composite bottom film 5 made of non-woven fabrics synthesized from the above-mentioned non-woven fabrics with anti-mosquito function, and the thermochromic agent is coated on the inner side of the non-woven fabrics. The film is a 20gsm breathable film with an air permeability of 1800-2600g/24h/m ² (positive cup method). The spun-bonded non-woven fabric is PP long-fiber hot-rolled fabric with a grammage of 15 gsm. The layers are bonded by hot melt adhesive, and the amount of hot melt adhesive sprayed between the layers is 2.5g/m ² .

Table 1: Mosquito repellent effect of Embodiment 1

Evasion rate Insecticidal rate The rate of mosquitoes around the human body Number of bites Implementation Mode 1 98.5% twenty four% 5% 0

Implementation mode 2:

Formula of anti-mosquito finishing agent:

Component Wt.%

Peppermint Oil 7%

Lemongrass Oil 2.5%

N, N-diethyl-m-toluamide (DEET) 8%

Tetramethrin 4.5%

Polyvinyl alcohol (PVA) 10%

Ethanol 50%

Deionized water 18%

Preparation of non-woven fabric with mosquito repellent function:

Dissolve polyvinyl alcohol in ethanol according to the proportion, add repellent and insecticide, stir and mix, then add essential oil, add appropriate amount of deionized water to adjust viscosity. A liquid-impermeable bottom layer with the function of repelling mosquitoes is obtained by rolling coating and drying the mosquito repellent finishing agent on the film or non-woven material. The oiling rate is 0.5%, the drying temperature is 150°C, and the line speed is 80m/min.

The preparation of the diaper with mosquito repelling function is the same as above.

Table 2: Mosquito repellent effect of Embodiment 2

Evasion rate Insecticidal rate The rate of mosquitoes around the human body Number of bites Implementation Mode 2 99.5% 35% 1% 0

It can be seen from the above examples that the disposable absorbent article with anti-mosquito function according to the present invention has a good repelling effect on mosquitoes, and can ensure that the volatile concentration of the mosquito repellent components within 2m of the wearer reaches the level of repellent. The effect of repelling mosquitoes, the mosquito repellent has no side effects on the human body, ensuring that the wearer will not be disturbed by mosquitoes all night.

(4) Mosquito repellent rate and insecticidal rate test

The test of mosquito repellent rate adopts air flow method, as shown in Figure 2. Put 50 mosquitoes into the glass boxes 22 and 23 separated by boards and communicated below, cut a small piece of diaper sample through the repellant and put it into the glass bottle 25, then start the running water pump 12, so the air is filled The container 13 of gac, a part flows into glass box 22 through glass bottle 25, and all the other part then enters glass box 23 by glass bottle 26, and these two parts of air are all discharged outside the box by glass tube 11. The air flow rate can be controlled at 3.5 L/min. At this time, the sample in the glass bottle 25 is trapped into the glass box 22 by the air due to evaporation. If there is repelling activity, the mosquitoes in the glass box 22 should escape to the glass box 23, and the number of mosquitoes in the glass boxes 22 and 23 before and after ventilation can be recorded respectively to compare the repelling activity of the samples.

The insecticidal rate was tested using the Erlenmeyer flask contact method, and each experiment was repeated 3 times. Put the disposable absorbent articles that have been repelled into a triangular flask, put 15-20 mosquitoes, start timing, and count the number of knocked down mosquitoes. After 30 minutes of contact, place the mosquitoes in a desiccator to recover for 30 minutes. The percentage of mosquitoes that died and regained mobility was counted.

(5) In vivo simulation test of mosquito repellent rate

In the simulation test, the absorbent article treated with mosquito repellent is worn on the human body, and other parts are exposed, and the number of mosquitoes around the human body and the number of mosquito bites are tested within 12 hours.

Of course, the technical solutions described above are only preferred examples of the present invention, and are not intended to limit the implementation scope of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the patent scope of the present invention are all Included in the patent scope of the present invention.

Description of figure number:

1-breathable top layer 2-wrapping layer 3-absorbent core 4-liquid impermeable bottom layer 5-mosquito repellent finishing agent 21-partition 22, 23-glass box divided into two chambers 24-sample 25,26-glass bottle 7-10 Glass tube 11-Glass tube with branch pipe 12-Flowing water pump 13-Container filled with activated carbon 14-Flow meter 15-Flow regulating valve

Claims (6)

1. absorbing articles with mosquito proof function, described absorbing articles comprises:

A) permeable top layer;

B) opaque liquid bottom;

C) and be located at absorbent cores between top layer and the bottom; With

Be characterised in that: described not oozing property bottom is above-mentioned through the thin film of mosquito dispersing arrangement and the compound counterdie of non-woven fabrics.

2. a kind of absorbing articles with mosquito proof function according to claim 1 is characterized in that: the mosquito dispersing finishing agent is coated on the counterdie outside and counterdie non-woven fabrics inboard.

3. a kind of absorbing articles with mosquito proof function according to claim 1 is characterized in that: the compound counterdie of described thin film and non-woven fabrics is put in order through mosquito proof, forms mosquito dispersing medicine film at the stock footage outer surface.

4. a kind of absorbing articles according to claim 3 with mosquito proof function, it is characterized in that: described mosquito proof medicine film can give out the abnormal smells from the patient that mosquitos and flies etc. is detested, and makes mosquitos and flies etc. be reluctant on containing the absorbing articles of anophelifuge or stops in the odoriferous zone and run away.

5. anti-mosquito agent is characterized in that: comprise following components by part by weight:

2%～15% essential oil, 5%～15% anophelifuge, 1%～5% insecticide, 5%～10% slow releasing agent, ethanol 40～60%, deionized water is an amount of.

6. the preparation method of an anti-mosquito agent is characterized in that: by proportioning buffer agent is dissolved in the ethanol, adds repellant and mix, add essential oil again, add appropriate amount of deionized water and regulate viscosity; Can not make through technologies such as anophelifuge finishing agent roller coat, oven dry by the liquid permeability egative film.

Images