JPH024159Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Application Field] The present invention relates to insect repellent paper for insect pests that live in human habitation areas, such as mites and teal beetles. [Prior Art] In recent years, with changes in building structures, people's living environments have changed, with ventilation becoming worse and room temperature not changing much. For this reason, in addition to the mites that have traditionally lived there, mites such as the Japanese spider mite and the spider mite have recently come to live inside carpets and tatami mats, under furniture, and inside closets. These pests have various adverse effects on the human body, and in particular, mites not only suck human body fluids, but also cause mites to cause acne.
Various insecticides and tapes impregnated with insecticides are known to have an insect repellent effect against these pests. [Problems that the invention aims to solve] When using insecticides, those for fumigation have a wide range of insect repellent areas, but their effect does not last long, and those for spraying do not have a long-lasting insect repellent effect and are short-lived. It is inconvenient to spray on carpets, carpets, and the underside of furniture. In addition, tape impregnated with insecticide has a lasting insect repellent effect, but the effect is limited to the area around where the tape is placed and is expensive if placed over a wide area. SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems and provide an insect repellent means that is inexpensive, easy to use, and has a long-lasting insect repellent effect. [Solution Means of the Present Invention] The insect repellent paper of the present invention is made by mixing a urea-based resin and having ridges in two directions, vertical and horizontal, on the surface. At least one of the following is attached. [Function] The insect repellent paper according to the present invention uses kraft paper that has protrusions in both vertical and horizontal directions on the surface, and the insecticide is applied to the surface, so the applied insecticide remains for a long time. It travels and accumulates in the concave portions formed between the vertical and horizontal ridges. Since this part is formed in a concave shape, it is difficult for the attached insecticide to escape compared to a case where the whole part is flat. Furthermore, since a larger amount of insecticide adheres to the recesses than to the protrusions, the efficacy of the insecticide lasts for a long time. Furthermore, since urea-based resin is mixed in during the paper manufacturing process, capillary action is less likely to occur, and as a result, the insecticide impregnated after application is suppressed from escaping. [Example] Hereinafter, an example of the present invention will be described based on the drawings. Reference numeral 10 is a kraft paper according to the present invention, which is manufactured by adding the following process to a normal paper manufacturing process. First, before papermaking, 1 to 1.5% of urea resin is mixed into the raw material pulp. When in a wet paper state, kraft paper 10
Wrinkle-like protrusions 14 are provided in the transverse direction on the surface of the material, and the material is then dried. After drying, the kraft paper 10 is embossed to provide vertical protrusions 16 on the front surface of the kraft paper 10 and vertical linear recesses 17 on the back surface. Next, application of insecticide will be explained. In the first example, 0.8 g/m ² of diazinon is applied as an insecticide 20 to the surface 12 of a kraft paper 10 having ridges in both the vertical and horizontal directions. The applied diazinon does not stay uniformly on the surface 12 of the kraft paper 10, but stays in large amounts in the recesses 18 between the horizontal protrusions 14 and the longitudinal protrusions 16.
Therefore, a larger amount of diazinon adheres to the recess 18 than to the protrusions 14 and 16. Test data showing the insect repellent effect of the insect repellent paper according to the first example on the insect repellent mites and the insect repellent mites will be shown below. In the test, the growth inhibition rate expressed by the following formula was determined by the medium mixing method. Growth inhibition rate = (C-T/C) x 100 C: Number of mites per unit weight in the control area T: Number of mites per unit weight in the treated area The results are as shown in Tables 1 and 2. ,
In the case of diazinon 160ppm, the growth inhibition rate of P. fasciatus 2 weeks after planting was 99.93%, and the growth suppression rate of P. fasciatus 8 weeks after planting was 99.93%.
It was 100%.

【table】

[Table] When diazinon is applied to the front surface 12 of the kraft paper 10 as in the first embodiment, laminating a plastic film on the back surface provides the following advantages. That is, since the plastic film has moisture-proof properties, the kraft paper 10 is unlikely to absorb moisture from the back side. Therefore, the medicinal effect of the applied insecticide lasts for a long time, and the protrusions 14 and 16 of the kraft paper 10 are not easily deformed over a long period of time. In the above embodiment, the insecticide 20 to be applied was only diazinon, but in the second embodiment, diazinon was applied at 0.8 g/m ² on the front surface 12 of the kraft paper 10, and fenitrothion was applied on the back surface. You may also apply 1.5g/ ^m2 . In this case, as in the first embodiment, a large amount of diazinon adheres to the recesses 18 on the front surface 12 of the kraft paper 10, and a large amount of fenitrothion also adheres to the linear recesses 17 on the back surface, so these insecticides is difficult to diverge. . Below, test data showing the insect repellent effect of the insect repellent paper according to the second example on the insect repellent mites is shown. The test was conducted to determine the growth inhibition rate in the same manner as in the first example, and the results were as shown in Table 3.
At 120 ppm, the growth inhibition rate 8 weeks after planting was 100%.

[Table] In general, when diazinon is used at 160 ppm and fenitrothion is used at 300 ppm, the growth inhibition rate is 90%.
It is thought that if it is more than that, it has an insect repellent effect. Therefore, it is considered that even if the amount of insecticide applied in the second example is slightly reduced, it is effective as an insect repellent paper, for example,
0.5g/m ² of diazinon, fenitrothion
It is considered that a coating of 1.0 g/m ² is sufficient. In addition,
If fenthion is applied instead of fenitrothion in the second embodiment, fenthion has greater insecticidal power than fenitrothion, so it can exhibit a greater insect repellent effect. In the above examples, 1 to 1.5% of the urea resin was mixed with the raw material pulp, but this mixing ratio is not limited to this range, and it effectively prevents the occurrence of capillary phenomenon and improves impregnation. It can be selected as appropriate within the range in which the emission of the insecticide is suppressed. Examples of how the insect repellent paper according to the present invention is used are shown below. In the case of laying a carpet on tatami mats, the insect repellent paper of the second embodiment is suitable. In other words, if you insert the insect repellent paper between the tatami and the carpet with the surface facing up,
When the mites that live on the tatami floor come to the surface of the tatami mat, they are killed by the fenitrothion applied to the back of the insect repellent paper, and the mites that live on the carpet, such as the mite that hides in the carpet, are killed by the fenitrothion applied to the back of the insect repellent paper. Insects are killed by applied diazinon. Further, if the insect-proof paper according to the first or second embodiment is placed between the tatami face and the tatami floor when making or changing the tatami mat, the effort of laying the insect-proof paper can be saved. Furthermore, when a carpet is laid directly on concrete in hotels, hospitals, offices, etc., insect-proof paper, which is a modification of the first embodiment, is suitable. In other words, when insect-proof paper is inserted under the carpet with the surface facing up, the insect pests hiding in the carpet are killed by the diazinon applied to the surface of the insect-proof paper.
Moisture introduced by the concrete is blocked by a plastic film laminated to the back side of the insect proof paper. [Effects of the invention] In the insect repellent paper of the invention, a large amount of insecticide is attached to the recesses surrounded by the vertical and horizontal ridges, so the medicinal effect lasts for a long time, and the insecticide is not mixed with urea resin. Since the paper is made using traditional methods, the release of impregnated insecticides is suppressed, so the insect repellent effect lasts for a long time. In addition, the insect repellent paper of the present invention provides an insect repellent effect just by laying it on a desired location, making it easy to use and inexpensive. Furthermore, the insect repellent paper of this invention has protrusions in both the vertical and horizontal directions, so it has good cushioning properties and is strong, and even when people walk on tatami mats or carpets, it does not make the noise peculiar to paper. , there is no discomfort even when using it.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the insect repellent paper according to the present invention, FIG. 2 is a similar enlarged perspective view, and FIG. 3 is a similar enlarged sectional view. Explanation of symbols, 10...Kraft paper, 12...Surface of kraft paper, 14...Horizontal protrusions, 16...
...Vertical protrusion, 17... Vertical linear recess,
18... Concavity between the protrusions in two directions, vertical and horizontal, 20...
…Insecticide.

Claims (1)

[Scope of utility model registration request] An insect-proof paper made of kraft paper which is made by mixing a urea-based resin and has protrusions in two directions, vertical and horizontal, and at least one of diazinon and fenitrothion or fenthion is attached to at least the surface of the paper.