CN102793611A - An absorbent article having an insect repellent - Google Patents

Abstract

The present invention relates to a daily absorbent product, belonging to the technical field of daily products, and in particular to a disposable absorbent product with a mosquito repellent. The liquid-impermeable bottom layer of the absorbent product is treated with a mosquito repellent, and a mosquito repellent film is formed on the outer surface of the liquid-impermeable bottom layer; the mosquito repellent film can emit an odor that mosquitoes and other blood-sucking animals hate, so that mosquitoes and other blood-sucking animals are unwilling to stay on the absorbent product containing the mosquito repellent or in the area where the odor is emitted and flee. It has a good repellent effect on mosquitoes and other blood-sucking animals, and can ensure that the volatile concentration of the mosquito repellent component within 2m of the wearer reaches the effect of repelling mosquitoes. The mosquito repellent has no side effects on the human body, ensuring that the wearer is not disturbed by mosquitoes all night.

Description

An absorbent article having an insect repellent

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 mosquito repellent.

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. the

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.

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.

Contents of the invention

The object of the present invention is to overcome the disadvantages of the above-mentioned prior art, and provide an absorbent article with simple structure, low manufacturing cost and the function of mosquito repellent.

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

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%. Among them, the fluff pulp has a weight 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 tensile 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 10-20N/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:

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 weight 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 base 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 20 gsm 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

the Repellent rate Insecticidal rate Mosquito rate around human body Number of bites Embodiment 1 98.5% twenty four% 5% 0

                                                                                   

the Repellent rate Insecticidal rate Mosquito rate around human body Number of bites Embodiment 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.

(iv) 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 (4)

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

A) permeable top layer;

B) opaque liquid bottom;

C) and be located at the 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.

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