JP2001220970A - Mothproof net and method for manufacturing the net - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mothproof net and a manufacturing method therefor for strengthening insect evadability, maintaining a mothproof effect over a long period and capable of effectively preventing an entrance of the insects. SOLUTION: This mothproof net is featured by including an insecticide in a lace of multifilament yarn, and this manufacturing method of the mothproof net is featured by being dried after impregnating an aqueous liquid including the insecticide and an adhesive into the lace of the multifilament yarn.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an insect net and a method for producing the same. More specifically, the present invention relates to an insect repellent net having strong insect repellency, a long-lasting insect repellent effect, and being able to effectively protect insects from being used for screens of houses and the like, and its production. About the method.

[0002]

2. Description of the Related Art A screen door is attached to an opening of a house in order to prevent insects from entering a house or the like. Needless to say, harmless insects such as mosquitoes and flies that directly and indirectly harm humans are troublesome when harmless insects etc. enter the house, and enter the interior of the lighting equipment cover and leave dead bodies. Many. For this reason, it is desired not only to physically prevent insects from invading with the screen door, but also to impart repellency to the insects to the screen door to more reliably prevent the insects from invading. In the past, nets made of vinyl chloride resin were generally used as nets for screen doors, but recently, nets made of polypropylene are often used, and nets made of stainless steel are also used. When an insect repellent is applied to these net materials, even if an adhesive is used in combination, the adhesive strength is weak, and the insect repellent peels off from the surface of the net in a short period of time, and loses its effectiveness.
Further, when the insect repellent is kneaded into a vinyl chloride resin or polypropylene and processed into a monofilament, the insect repellent inside the monofilament does not move to the surface, so that the expensive insect repellent is wasted and the insect repellent effect is weak. For this reason, there has been a demand for an insect repellent net that can maintain insect repellency for a long period of time and effectively protect the insects from invading.

[0003]

DISCLOSURE OF THE INVENTION The present invention has a strong repellency against insects, has a long insect repellent effect, and can be effectively used for screens of houses and the like to effectively prevent insects from entering. An object is to provide an insect net and a method for producing the same.

[0004]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, the use of a multifilament yarn lace as the material of the net has made it possible to adhere the insect repellent to the net. The insect repellent effect can be maintained for a long period of time by increasing the amount and retention, and the multifilament yarn lace is impregnated with an aqueous liquid containing an insect repellent and an adhesive and then dried to provide a large insect repellent effect. Have been found to be easily manufactured, and the present invention has been completed based on this finding. That is, the present invention provides (1) an insect repellent net comprising a multifilament yarn race containing an insect repellent, and (2) the insect repellent according to item 1, wherein the insect repellent is a pyrethroid-based insect repellent. Net, (3) the insect net according to paragraph 1 or 2, which is an insect net for a screen door, and
(4) A method for manufacturing an insect repellent net, characterized in that a multifilament yarn lace is impregnated with an aqueous liquid containing an insect repellent and an adhesive and then dried.
Further, as preferred embodiments of the present invention, (5) the insect net according to item 1, wherein the number of filaments of the multifilament yarn is from 10 to 100, and (6) the lace is a lace comprising polygonal eyes. The insect repellent net according to Item 1 may be mentioned.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The insect repellent net of the present invention is an insect repellent net comprising a multifilament yarn lace containing an insect repellent. The material of the multifilament yarn used in the present invention is not particularly limited, and examples thereof include rayon, acetate, nylon, polyester, and acryl. Among these, a polyester multifilament yarn can be suitably used. Although the number of filaments of the multifilament yarn used in the present invention is not particularly limited,
The number is preferably 10 to 100, and more preferably 20 to 50. If the number of filaments is less than 10, the amount of the insect repellent attached becomes small, and the insect repellent effect may be reduced. A multifilament yarn having more than 100 filaments is not only expensive, but also a necessary and sufficient amount of insect repellent and pesticide can be attached using a multifilament yarn having 100 filaments or less. Although there is no particular limitation on the lace used in the present invention, a lace having only a polygonal open stitch such as a tulle lace or a marquisette race can be suitably used. FIG. 1 is an example of a plan view of a marquisette race.

[0006] The insect repellent used in the present invention is not particularly limited.
For example, pyrethroids, cinerine, jasmolin, allesulin, resmethrin, pyrethroid insect repellents such as fenvalerate, toxaphene, cyclic diene insect repellents such as benzoepine, malathion, organic phosphorus insect repellents such as fenitrothion, carbaryl, mesomil, promecarb and the like Carbamate-based insect repellents and the like can be mentioned. One of these insect repellents can be used alone, or two or more can be used in combination. Among these, pyrethroid insecticides which have excellent insect repellency, are fast-acting, and have low acute toxicity can be particularly preferably used. In the present invention, the content of the insect repellent is not particularly limited, but is preferably 14.5 to 22.0 parts by weight, more preferably 16.50 to 18.25 parts by weight, per 100 parts by weight of the multifilament yarn lace. More preferably, there is.

In the method for producing an insect repellent net of the present invention, a multifilament yarn lace is impregnated with an aqueous liquid containing an insect repellent and an adhesive and then dried. FIG. 2 is a process flow chart of one embodiment of the production method of the present invention. A lace 1 of multifilament yarn is unwound from an unwinding roll 2 and impregnated in an impregnation tank 3 with an aqueous liquid containing an insect repellent and an adhesive. After the lace of the multifilament yarn is squeezed by the squeezing roll 4 to adjust the impregnation amount of the aqueous liquid, the lace is dried by passing through the heating furnace 5,
The insect net of the present invention is obtained and wound on the winding roll 6. In the method of the present invention, the adhesive used is not particularly limited, and examples thereof include a synthetic rubber latex adhesive, a vinyl acetate-ethylene copolymer adhesive, a polyacrylate adhesive, and a polyvinyl chloride adhesive. be able to. In the method of the present invention, the concentration of the aqueous liquid containing the insect repellent and the adhesive is not particularly limited, but the concentration of the insect repellent is 7.5.
１１11.5 g / L, preferably 8.5-9.5 g / L
g / L is more preferable. The adhesive is 2.
It is preferably from 0 to 3.0 g / L, and from 2.25 to 2.2 g / L.
More preferably, it is 55 g / L. An aqueous liquid containing an insect repellent and an adhesive contains, if necessary, a surfactant,
An ultraviolet absorber, an antifoaming agent and the like can be contained.
In the insect repellent net of the present invention, since the insect repellent is fixed to the gaps between many filaments and the nodal points of the race, the amount of the insect repellent is large and the insect repellent does not fall off the filament. Therefore, the insect repellent effect is large, the durability is excellent, and it can be suitably used as an insect repellent net for house screens.

[0008]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the present invention. Example 1 An aqueous liquid containing a pyrethroid insecticide [Earth Pharmaceutical Co., Ltd.
20 L of ED-50A], 8 L of an acrylic adhesive solution [Union Chemical Co., Ltd., Unisol AK32] and 5 L of water were mixed to prepare an aqueous liquid containing an insect repellent and an adhesive.
A marquisette lace having a width of 0.92 m and a basis weight of 56.5 g / m ² , which was knitted with a polyester multifilament yarn having a thickness of 36 filaments and a thickness of 75 denier, was treated with the aqueous liquid. This aqueous liquid was put into an impregnation tank, and a marquisette race was sent at a speed of 60 m / min to pass through the impregnation tank, and then squeezed by a squeezing roll. The impregnated amount of the aqueous liquid containing the insect repellent and the adhesive is 1 m
The weight was 9.5 g per unit. After squeezing the marquisette lace, it was continuously sent to a heating furnace maintained at 180 ° C. and dried to produce the insect net of the present invention. From the middle of June to mid-September, the above insect repellent net was attached to one of the fixed two-screen doors with an aluminum alloy sash fitted on the outer surface, and the commercially available insect repellent net made of polypropylene was attached to the other screen. Observed. When the indoor lighting was turned on, insects flew into the insect repellent net made of polypropylene,
No insects approached the insect net of the present invention. In the morning, when observed under the screen door, insect corpses often fell under the insect repellent net made of polypropylene, but almost no insect corpses were found under the insect repellent net of the present invention.

[0009]

The insect repellent net of the present invention has a strong repellency against insects, has a long insect repellent effect, and can be effectively used for screens of houses and the like to effectively prevent insects from entering. Further, according to the method of the present invention, such an insect repellent net can be easily produced.

[Brief description of the drawings]

FIG. 1 is an example of a plan view of a maxi lace.

FIG. 2 is a process flow chart of one embodiment of the method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Multifilament yarn race 2 Unwinding roll 3 Impregnation tank 4 Squeezing roll 5 Heating furnace 6 Winding roll

Claims (4)

[Claims] 1. An insect repellent net comprising a multifilament yarn lace containing an insect repellent. 2. The insect repellent net according to claim 1, wherein the insect repellent is a pyrethroid insect repellent. 3. The insect repellent net according to claim 1, which is an insect repellent net for a screen door. 4. A method for producing an insect repellent net, comprising impregnating a multifilament yarn lace with an aqueous liquid containing an insect repellent and an adhesive, followed by drying.