JP2023046461A - Minute-insect attracting and capturing sheet - Google Patents

Abstract

To answer a need for a technique that has visual contrast on the basis of the total illumination including transmitted light, and also to answer a need for a technique that provides not a single type but multiple types and forms of visual contrast in order to attract many types of minute insects because it is thought that the conditions for visual contrast to which insects are attracted differ depending on the type of minute insects.SOLUTION: Provided is a woven sheet for attracting minute insects, in which both the warp and the weft constituting the sheet are flat yarns obtained by slitting and drawing a translucent synthetic resin film.SELECTED DRAWING: Figure 1

Description

There is an application for the application of Article 30, Paragraph 2 of the Patent Law. In order to request a monitor for product evaluation, we distributed a technical document "Request for a monitor of 'Large-sized adhesive sheet with insects'".・For the sales promotion manager of Koizumi Seima Co., Ltd. to request Shikoku Meiji Beverage Co., Ltd. to monitor the micro-insect attracting/trapping sheet invented by Mr. Junya Yase and Mr. Isami Fujita for product evaluation. .・For the sales promotion manager of Koizumi Seima Co., Ltd. to request the Takamatsu sales office of Horiaki Co., Ltd. to monitor the micro-insect attracting/trapping sheet invented by Mr. Junya Yase and Mr. Isamu Fujita for product evaluation. , we distributed the technical material "Mug Petatto Large Adhesive Sheet Monitor Request".・The person in charge of sales promotion at Koizumi Seima Co., Ltd. sent a product evaluation monitor to the Kochi Prefectural Agricultural Cooperative Aki Yuzu Processing Plant for the micro-insect attracting/trapping sheet invented by Mr. Junya Yase and Mr. Isami Fujita. In order to make a request, we distributed a technical document titled "Mug Petatto Large Adhesive Sheet Monitor Request".・For the sales promotion manager of Koizumi Seima Co., Ltd. to request the Takamatsu branch of Sodanica Co., Ltd. to monitor the micro-insect attracting/trapping sheet invented by Mr. Junya Yase and Mr. Isamu Fujita for product evaluation. , I mailed the technical material ``Request for monitor of ``Mushi Petatsu and Large Adhesive Sheet''.

There is an application for the application of Article 30, Paragraph 2 of the Patent Law ・Invented by Mr. Junya Yase and Mr. Isamu Fujita in Koizumi Seima Co., Ltd.'s leaflet "Large size adhesive sheet with insects" (2021.05.3000) , released a micro-insect attracting/trapping sheet.・Koizumi Seima Co., Ltd. published a leaflet "Mushi Petatto Large Adhesive Sheet" (Jun.・ Nokei Shinposha Co., Ltd., on the 7th page of Nokei Shinpo dated July 19, 2021 (weekly), about the micro-insect attraction and capture sheet invented by Mr. Junya Yase and Mr. Isamu Fujita Published.・A small insect attracting/trapping sheet invented by Mr. Junya Yase and Mr. Isami Fujita on page 7 of the Agricultural Mutual Aid Newspaper dated August 18, 2021 (weekly) by the National Agricultural Mutual Aid Association. published about.・ Nihon Keizai Shimbun Co., Ltd. attracts and captures microscopic insects invented by Mr. Junya Yase and Mr. Isamu Fujita on page 7 of Nikkei MJ dated August 18, 2021 (published 3 days a week) Published about the sheet.・The Nihon Agricultural Newspaper Co., Ltd. published a sheet for attracting and capturing microscopic insects invented by Mr. Junya Yase and Mr. Isami Fujita on page 12 of the Nihon Agricultural Newspaper dated August 23, 2021 (daily publication). bottom.・The Japan Seed Newspaper Co., Ltd. released the micro-insect attraction and capture sheet invented by Mr. Junya Yase and Mr. Isami Fujita on the 3rd page of the Japan Seed Newspaper dated September 1, 2021 (junkan). bottom.・Koizumi Seima Co., Ltd. published a sheet for attracting and trapping microscopic insects invented by Mr. Junya Yase and Mr. Isami Fujita on the public website of Rakuten Group Co., Ltd.・Koizumi Seima Co., Ltd. published a micro-insect attracting/trapping sheet invented by Mr. Junya Yase and Mr. Isami Fujita on the public website of ASKUL Corporation.

The present invention mainly relates to a woven and knitted sheet that attracts and traps microscopic insects.

Insect-trapping sheet having an adhesive layer colored yellow, blue, etc., which are the colors that attract microscopic insects (pests), in order to attract and capture microscopic insects (pests) such as thrips, whiteflies, aphids, and leafminers is widely used.

In recent research, when flying microscopic insects (pests) approach and land on a target, visual contrast based on differences in brightness and color near the target plays an important role. It has been found that small insects are easily attracted to the surface (edge effect). Figures 6 and 7 are photographs of the flying and landing postures of micro-insects, and they show how a target is set at a position quite far from the landing point and the flying posture is adjusted.

Focusing on this effect, there is a technique describing the arrangement relationship of colored layer regions that reflect two different attracting colors. (Patent Document 1) According to the structure of reflecting two different attracting colors, a difference in color of the reflected light occurs on the surface of the insect trapping sheet, and a large contrast of light appears to improve the attracting effect.

Also, there is a technique of forming a large number of protrusions on the base layer of the insect trapping sheet. (Patent Document 2) By embossing, a difference in reflected light based on the amount of light irradiation is used to create a contrast due to the brightness of the light between the bright convex portions and the dark concave portions (flat portions).

JP 2019-135996 JP 2011-36153

All of the above techniques focus on the visual contrast of either color or brightness due to reflected light. However, visual contrast is what microscopic insects perceive visually through the entire irradiation light including transmitted light. Moreover, when sunlight or the like is on the opposite side of the insect trapping sheet, the color difference and brightness difference of the received reflected light are reduced, and a sufficient edge effect cannot be obtained. Therefore, there is a need for a technique that provides visual contrast based on the total illumination including transmitted light. In addition, since the conditions of visual contrast to be attracted are considered to differ depending on the type of microscopic insects, there is a need for a technology that has not a single type but multiple types and forms of visual contrast in order to attract various types of microscopic insects. . Furthermore, since insect trapping sheets are used for a long period of time and in large quantities, they are required to be durable materials with low environmental load.

In order to solve the above-mentioned problems, a woven and knitted sheet for attracting microscopic insects is provided, in which both the warp and the weft constituting the sheet are flat yarns obtained by slitting and stretching a translucent synthetic resin film. A woven sheet characterized by:

In general, a thread is defined as "a fiber that is stretched thin and long and twisted", and is divided into spun yarn and filament yarn. Both the warp and the weft are tape-shaped by stretching a synthetic resin film after slitting it. Also referred to as flat yarn, tape yarn, tape yarn, etc., the term "flat yarn" is used herein.

Having translucency means that the sheet has a property of transmitting part of the light from the light source such as the sun or illumination emitted from the back side of the sheet.

The type of synthetic resin used as the material for the warp and weft is not particularly limited, but polyethylene and polypropylene are preferable from the viewpoint of translucency and weaving and knitting. Weaving and knitting collectively express weaving and knitting, and although not limited, weaving is more preferable. In the case of weaving, the weaving method is appropriately selected from plain weave, twill weave, satin weave, leno weave, etc., and in the case of knitting, the knitting method is appropriately selected. Twill weave, satin weave, and leno weave are preferable from the viewpoint of increasing the unevenness of the sheet and increasing the amount of light transmitted through the voids on the sides of the warp or weft.

A woven sheet has at least a single layer portion in which only warps or only wefts exist and a multi-layer portion in which warps and wefts are overlapped. There are also gaps where neither warp nor weft exist. Therefore, in the woven and knitted sheet, there is a difference in translucency based on the three patterns of the partial structure of the sheet depending on the overlap and the presence or absence of yarn (in addition, if there are folded parts in the warp and weft, If the thickness of the weft yarn is different from that of the weft yarn, the number of types of translucency will increase further.) The amount of voids is affected by the density of the arrangement of warp and weft and the state of weaving.

Further, the total warp width, which is the sum of the widths of all the warps forming the sheet, exceeds the total width of the sheet, or the total width of the wefts, which is the sum of the widths of all the wefts forming the sheet, exceeds the sheet. A woven sheet for attracting micro-insects is provided that is densely arranged over its entire length.

The total length of the sheet means the total dimension along the weaving direction of the sheet, and the total width of the sheet means the total dimension along the direction perpendicular to the weaving direction of the sheet. The width of warps or wefts constituting the width of all warps or the width of all wefts refers to the width of each warp or each weft in a flat state without any change in shape such as folding. Therefore, the total warp width obtained by summing the widths of all the warp yarns exceeds the total width of the sheet, or the total width of the total weft yarns obtained by summing the widths of all the above-mentioned weft yarns exceeds the total length of the sheet.

In the present invention, when the total warp width of all the warp yarns exceeds the total width of the sheet, and the total weft width of all the weft yarns exceeds the total width of the sheet. is absorbed by warp or weft breakage that occurs in all the weaving and knitting processes, including the preceding process. The warp or weft that constitutes the sheet has a cross-sectional shape in which the thickness is partially or wholly increased by folding.

In the woven and knitted sheet, in addition to the above-described single layer portion, multi-layer portion, and void portion, folded portions are generated due to folding of the warp and weft. In terms of weaving and knitting, it is difficult to design or predict where and how the folds will occur, so the positions of the folds will be irregular, and the manner of folding will also vary. In addition, since the number of voids generated along with the generation of the bent portion increases, a large number of voids are also generated irregularly.

The yarn width and yarn thickness are not particularly limited, but the yarn thickness and the ratio between the yarn width and the yarn thickness are designed so that a folded portion can be generated during weaving or the like.

Further, there is provided a woven and knitted sheet characterized in that the warp or the weft is a flat yarn obtained by slitting and stretching a translucent synthetic resin film and pre-folding it before weaving and knitting.

At the stage before the weft and warp are set on a loom or knitting machine, a folded portion can be generated in advance through a tape guide machine or the like. Occurrence of folds during weaving is reduced due to the occurrence of folds in advance.

Also provided is a micro-insect trapping sheet in which a substance for trapping micro-insects is added to the surface of the warp or weft that constitutes the woven and knitted sheet.

It is a capture sheet that captures attracted micro-insects with a substance such as adhesive. Adding a substance for capturing includes, but is not limited to, spraying a spray-type adhesive onto the surface of the warp and weft, attaching a minute material having a hook shape to the surface of the warp and weft, and the like. For spray adhesives, those having a yellow, blue or green color are preferred.

Further, the woven and knitted sheet is characterized in that a coating material layer is formed on both sides of the woven and knitted sheet by a coating material having translucency, and an adhesive material layer is formed by overlapping the coating material layer with an adhesive material having translucency. A micro-insect trapping sheet is provided.

Both sides of the sheet are covered with a coating material, and an adhesive is applied thereon. The coating material is preferably polyethylene, which has excellent translucency and workability, but is not particularly limited. Also, the adhesive is not particularly limited as long as it has translucency. When the attracting sheet is covered with a covering material of a certain thickness by lamination or other processing, the surface of the covering material becomes smooth by tracing the unevenness of the single layer part (warp part, weft part), overlapping part, gap part, (folding part). It will exhibit a rough uneven shape.

Further, there is provided a micro-insect trapping sheet, wherein the translucent covering material has a color of yellow, blue or green and is a translucent covering material.

By adjusting and adding a pigment to the coating material, it is possible to obtain a translucent sheet for trapping microscopic insects having a yellow, blue or green color and translucency. The method of imparting color is not particularly limited. The lightness, hue, chroma, and degree of transparency of the color are appropriately selected.

Further, there is provided a micro-insect trapping sheet, wherein the adhesive material layer is formed by transfer-coating the adhesive material.

For the adhesive layer, there is a coating method (transfer coating) in which the adhesive is transferred from the roll to the object to be coated while maintaining a uniform thickness of the adhesive, and a normal coating method in which the adhesive coating material layer is coated. However, the former method is preferable in order to form a surface shape having unevenness that traces the surface of the covering material. The method of forming the coating material layer includes a method of laminating a pre-formed coating material on the micro-insect attracting sheet and a method of applying a coating material in a molten state, cooling and assimilating it, and laminating the sheet. The former method is more preferable in order to follow the cross-sectional shape of the laminate.

Further, flat yarns formed by stretching a translucent synthetic resin film after slitting are used as warps and wefts constituting a woven and knitted sheet, and all the warps or all the wefts constituting the woven and knitted sheet. The woven and knitted sheet is densely arranged so that the total width exceeds the entire width or the entire length of the woven and knitted sheet, and both surfaces of the obtained woven and knitted sheet are covered with a translucent covering material, and a covering material layer of the covering material is formed. Provided is a method for producing a sheet for trapping microscopic insects, characterized by forming an adhesive material layer with an adhesive material having translucency over a sheet.

The sheet according to the present invention generates large and small portions of transmitted light in three stages (multilayer portion, single layer portion, and void portion) over the entire surface of the sheet. As for the reflected light, a difference in the thickness of the thread is formed between the multi-layered portion and the single-layered portion, and the magnitude of the reflected light is generated between the flat portion and the stepped portion. Such various transmitted light and reflected light are applied to the micro-insects, and various differences in light and shade occur due to the transmitted light and reflected light. Similarly, differences in perspective, hue, and saturation occur based on the uneven shape of the sheet surface. These factors are combined in a complex manner, resulting in a multitude of different types of visual contrast across the sheet that are perceived differently by microscopic insects. These multiple visual contrast boundaries have an edge effect that attracts microscopic insects.

In addition, since the present invention utilizes transmitted light, it is possible to anticipate the effect of attracting minute insects on both sides of the sheet.

Moreover, since the attractant sheet according to the present invention is a woven or knitted fabric, it is easy to prepare a large-sized microinsect-trapping sheet, and it is resistant to wind and rain and is resistant to deterioration due to sunlight.

The occurrence of folds in the warp or weft increases the pattern of light and dark and unevenness of the surface, resulting in an increase in visual contrast boundaries. In addition, since the occurrence frequency and shape of the folds are not constant, and the presence of the folds causes some parts where the warp and weft are not orthogonal, the placement of the parts (positions) where the above visual contrast occurs is irregular. becomes. From these, various patterns of visual contrast stimuli are applied to the types and states of flying micro-insects at various portions (positions), and the attracting effect can be further enhanced. Moreover, the strength of the entire sheet can be increased due to the presence of the folded portion.

By folding in advance before weaving and knitting, it is possible to generate regular folds. It is effective when it is desired to systematically generate a certain ratio of folds depending on the production efficiency of weaving, the properties of microscopic insects, and the like. It is also possible to generate a predetermined number of folds in advance and to generate additional folds in the process of the loom/knitting machine.

The micro-insect trapping sheet according to the present invention can trap micro-insects that are attracted and land on the surface of the sheet, and can prevent harvest loss and quality deterioration of cultivated crops due to micro-insects.

The micro-insect trapping sheet according to the present invention can capture attracted micro-insects while increasing the strength and durability of the sheet. Since both the coating material and the adhesive material have translucency, it is possible to obtain the effect of transmitted light obtained with the attraction sheet described above, and the contrast of the reflected light is also obtained according to the attraction sheet described above. be able to.

Since the covering material has a yellow, blue or green color and is translucent, the certain color attracts the visual contrast, and the pests come closer and are captured.

Microscopic insects tend to land on the boundary of the visual contrast, but in order to fly to a position close to the sheet, it is effective for the sheet itself to have a color preferred by the microscopic insects. Preferred colors of micro-insects include yellow, blue and green, and the sheet preferably has these colors.

Due to the uneven shape of the surface of the adhesive layer, it is possible to exhibit the light-dark contrast of the reflected light based on the step (uneven shape) of the sheet cross section.

According to the production method of the present invention, a sheet is produced in which multi-stage light-dark contrasts appear at many locations over the entire surface of the sheet, and insect pests attracted to the boundaries of the contrasts can be captured.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram of a micro-insect attracting/trapping sheet (uncovered, warp and weft) according to the present invention. 1 is a photograph of a micro-insect attracting/trapping sheet (uncoated, warp and weft) according to the present invention. 1 is a photograph of a micro-insect attracting/trapping sheet (uncoated, warp or weft) according to the present invention. FIG. 3 is a diagram showing the light transmittance of the micro-insect attracting/trapping sheet (uncoated) according to the present invention. A sheet for attracting/trapping micro-insects according to the present invention (forming a laminate coating layer and an adhesive layer). It is a photograph that captures the flight and landing postures of a microscopic insect (whitefly). It is a photograph that captures the flight and landing postures of microscopic insects (thrips onion). 1 is a system diagram for measuring light transmittance of a micro-insect attracting/trapping sheet according to the present invention. FIG. (Quoted from Asahi Spectrosco Co., Ltd. high-speed spectroscopic unit HUS-100S instruction manual)

Implementation of the micro-insect trapping sheet according to the present invention will be described in detail. The following is one embodiment of the present invention, and the present invention is not limited to the following embodiments.
First, the woven and knitted sheet will be described. Both warps and wefts forming the sheet are flat yarns obtained by slitting and drawing a synthetic resin film. Materials include high-density polyethylene, linear low-density polyethylene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid ester copolymer, polypropylene, and the like. A propylene homopolymer, an ethylene-propylene block copolymer, an ethylene-propylene random copolymer, or a mixture thereof can be used as the polypropylene. Among these, polyethylene and polypropylene are preferable in consideration of mechanical properties such as translucency and strength of stretched tape, extrusion moldability during production, stretchability, and the like. In the case of polyethylene, it has almost the same translucency as plate glass, and in the ultraviolet light region, it may exhibit translucency superior to that of plate glass.

A method for manufacturing a synthetic resin flat yarn according to the present invention will be described.
First, the synthetic resin such as polyethylene, which is the raw material, is uniformly prepared with a stirrer. It is melted by heat and then extruded into a film.

Next, the obtained unstretched film is stretched at a high speed and at the same time slit to a width corresponding to the fineness. Slitting can be performed by a known method, such as a razor blade having a slitting width, or a rotary cutter (round blade). Then, the slit flat yarn is stretched in the machine direction while being heated to obtain a flat yarn having a predetermined thickness. The stretched warp flat yarn and weft flat yarn are respectively wound on bobbins.

Next, for the purpose of dimensional stability and the like of the woven and knitted fabric, the strain generated by stretching is relaxed by heating and removed. Note that strain relief by heating is not necessarily an essential step in the present invention.
The thickness of the stretched tape is determined from the viewpoint of the object of the present invention, which is to have translucency, and the sheet strength. About 3 μm is preferable, but it is not limited.

Weaving and knitting using the stretched tape is performed by a normal loom or knitting machine. The weaving method is appropriately selected from plain weave, twill weave, leno weave, satin weave, etc., and the knitting method is appropriately selected from warp knitting, weft knitting, and the like.

The warp or weft in weaving or knitting is laid out over the entire width or length of the sheet. For the warp and weft with a width of 3.7 mm, if the number of yarns applied during weaving is 10 / 25.4 mm × 10 / 25.4 mm, the theoretical total excess width is about 11 mm per inch. Width causes a break in the warp or weft.

In the case of the warp, when the warp is passed through the reeds, a flat yarn that is wider than the space between the reeds is pushed into the warp, and this causes the warp to break. In the case of the weft, breakage occurs when the weft is pulled out from the cheese, when the weft is inserted, and when the reed is beaten. Since these folds are caused by external forces under various conditions, they are irregular folds in which the manner of folding and the frequency of folding are not constant.

Folds can be adjusted by adjusting the tension of the loom in addition to densely arranging the warp or weft in weaving. By increasing the tension of the loom, the occurrence of folds can be promoted more. In addition, it is possible to promote the generation of voids.

It is also possible to cause the warp yarn or the weft yarn to be folded in advance before being supplied to the weaving machine. For example, if the weft yarn is passed through a tape guide to form a folded shape and then woven, folds of a substantially constant shape are continuously generated.

FIG. 1 is a schematic diagram of a micro-insect attraction/trapping sheet. The warp and weft are plain weave. The cross-sectional shape of the warp 200 and the weft 300 may be flat, or may have folded portions (210, 310). There are various things, such as those that are folded in three folds. In addition, there are scattered gaps 400 in which neither warp nor weft exist.

FIG. 2 is a photograph of the sheet according to the present invention attached to quartz glass. Both the warp and the weft were woven with polyethylene flat yarns having a thickness of 3 μm, and the yarn count was 10/25.4 mm×10/25.4 mm. Since both the warp and weft threads are densely arranged in the weaving process, folding occurs, and the degree of parallelism between the threads and the degree of orthogonality between the warp and weft threads are disturbed. There are four types of yarn overlap, warp or weft only, folds, and gaps where no yarn exists, and the difference in translucency of each provides contrast between light and shade. Moreover, since each aspect appears irregularly, the contrast between light and dark also occurs irregularly.

FIG. 3 is a photograph of the sheet shown in FIG. 2 divided into warp only and weft only and attached to quartz glass in order to observe the difference in transmittance of transmitted light. The left side of FIG. 3 is the warp, and the right side is the weft.

FIG. 4 shows the transmittance of light (wavelength: 300 to 800 nm) at warps, wefts, and intersections of warps and wefts for the sheets of FIGS. For the measurement of transmitted light, a spectrometer (Asahi Spectrosco Co., Ltd. HSU-100S) is equipped with a transmitted light measurement unit (Asahi Spectrosco Co., Ltd. HSU-T.ST), and a xenon light source (Asahi Spectrosco Co., Ltd. ) LAX-Cute) was used (FIG. 8). The measurement material was prepared by pasting threads on one side of a quartz glass plate (50×50 mm, thickness 1 mm) without gaps, and set it at a predetermined position of the transmitted light unit.

The dashed-dotted line in the upper part represents the warp yarn, the dotted line in the middle represents the weft yarn, and the solid line in the lower part represents the light transmittance of the intersection. The transmittance of warps, wefts, and intersections of warps and wefts was measured at 10 points, and the average value was taken as the actual value. The warp transmittance was 8.90 to 17.02%, the weft transmittance was 4.90 to 12.34%, and the crossing portion transmittance was 0.89 to 2.78%. Although the absolute value of the transmittance is not high because it was measured by attaching it to the glass, even this value is a level at which the transmitted light can be sufficiently recognized by microscopic insects. Although the warp and the weft are made of the same material, it is considered that the measured values are different due to the difference in diffusion of light along the fiber. In addition, the reason why the transmittance at the intersection is lower than the calculated value obtained from each transmittance is considered to be mainly due to the loss due to the overlapping of the two sheets of quartz glass.

An adhesive is added to the woven sheet to capture the attracted micro-insects. FIG. 5 is a schematic diagram of forming an adhesive layer after laminating and covering the woven and knitted sheet. The warp has flat or folded portions, both sides of which are covered with a covering material, and a pressure-sensitive adhesive layer is formed on the outside thereof. Although the cross section of the sheet exhibits an uneven shape due to the presence of bent portions and voids in the warp, the coating material layer and the adhesive layer exhibit a gentle uneven shape following the cross-sectional shape of the sheet. Although the weft is omitted in this figure, the weft also has the same aspect as the warp. note that. Laminated coating increases the durability of the sheet and facilitates the formation of the adhesive layer, but it is also possible to omit the laminated coating and attach the adhesive.

Lamination processing and adhesive application processing will be described. The knitted and woven sheet is subjected to a lamination process for laminating a covering material. The coating material must be a translucent material, and polyethylene is preferable from the viewpoint of workability, but the material is not limited to this.

There is an extrusion lamination method as lamination processing. Thermoplastic resins such as pellet-like or powder-like low-density polyethylene and polypropylene are heated, kneaded, and melted, extruded into a film form from a T-die, pressed against the knitting and weaving sheet that is the base material, and cooled and assimilated into a laminated state. It is a technology to make When the base material and the covering material are made of the same material, the extrusion lamination method, which does not require an adhesive and can be mass-produced at low cost, is generally adopted.

The coating material preferably has translucency and has blue, yellow, and green colors. A colored light-transmitting sheet is produced by pressure-bonding a thermoplastic resin such as polyethylene containing a coloring pigment to the front and back of a knitting and weaving sheet and cooling and assimilating the same. The rolled sheet is cut into plate-shaped sheets of suitable size.

Lamination using a solvent includes a dry laminator method and a wet laminator method. In this method, the coating material is attached after or before drying after applying the adhesive to the base material. Since the covering material does not melt, the thickness before lamination can be maintained.

An adhesive is applied to the sheet having a laminated structure by lamination.
As a method of applying the adhesive, there are a method of applying the adhesive directly to the laminated sheet as the base material and a method of transfer coating.

Transfer application is a method of applying an adhesive material to a release paper and pasting it to a laminated sheet to transfer the adhesive material. Transfer coating is performed by die coating or the like. An adhesive supplied by a pump from an adhesive dissolving tank is pushed out from the tip of a die (coating nozzle) and applied to the release paper pulled out by the backup roll. The amount of adhesive to be applied is determined by controlling the number of rotations of the pump for supplying the slurry, the line speed of the machine, the coating width, etc., and the thickness is constant. A release paper coated with an adhesive is adhered to one surface of the laminated laminated sheet. Since the layer of the adhesive material applied with a certain thickness is attached to the laminated sheet as it is, the surface shape of the adhesive material layer traces the surface shape of the laminated sheet. The produced single-sided adhesive laminate sheet with release liner is wound up on a roll.

Next, a release paper coated with the same adhesive as above is attached to the other surface of the laminated laminate sheet to prepare a double-sided adhesive laminated sheet with release paper, which is wound up on a roll.

Sheets coated with adhesive on both sides are cut, reinforced on four sides, and eyelet-processed to support hanging use at the site of use. The size of the standard product is 45 cm in width and 2 m in length. As a result, it can be cut into 50 cm increments and trimmed into appropriate dimensions for use, depending on the situation at the site.
[Example]

Examples using the pressure-sensitive adhesive laminated sheet according to the present invention and comparative examples are shown below, but the present invention is not limited to these examples.

A microscopic insect trapping test was conducted on the adhesive laminated sheet according to the present invention and other companies' products (H sheet, M sheet and L sheet).
Test location: Koizumi Seima Co., Ltd. Shiga factory test house (around and inside the house)
Period: September 6th to November 15th, 2019 Capture target: Microscopic insects such as Thrips and Whiteflies Product content:
- Sheet of the present invention (large format, laminated polyethylene fabric sheet coated with adhesive on one or both sides), 450 mm x 2000 mm
・H sheet (laminated synthetic resin [house made of synthetic resin and paper] double-sided adhesive sheet), 257mm x 100mm
・M sheet (laminated synthetic resin double-sided adhesive sheet), 220mm x 100mm
・L sheet (double-sided adhesive sheet made of laminated paper), 220mm x 100mm

Table 1 shows the results of binding each of the above sheets to upright horticultural supports around the Shiga Plant test house, holding them for the above period, and counting the number of catches after the period.
Adhesive side (one side or both sides) color and number of installations are the present invention: 1 blue on one side, 1 yellow on one side, 1 transparent on one side, H sheet: 1 blue on both sides, 1 yellow on both sides, M sheet: blue on both sides 1 sheet, 1 double-sided yellow sheet.

Describe the results of the number of individual catches. In the sheet of the present invention, yellow was 111, blue was 697, and transparent was 9. The H sheet was 38 yellow and 99 blue, and the M sheet was 3 yellow and 1 blue.

In Table 2, in order to compare the number of captures in the same area for the results of Table 1, the number of captures was converted to the number of captures per 10 cm x 10 cm on one side (referred to as "unit number of captures") and graphed. It is. In descending order, this invention sheet (blue) 110.6, H sheet (blue) 39.6, this invention sheet (yellow) 17.6, H sheet (yellow) 15.2, this invention sheet (transparent) 1 .4, M sheet (yellow) 1.4, M sheet (blue) 0.5.

The number of unit captures is large for the blue sheet, and in particular, the number of captures for the sheet of the present invention (blue) is about three times that of the second-ranked H sheet (blue). Also, the present invention sheet (transparent color) shows a number of captures equal to or greater than that of the M sheet, although the numerical value is low.

Table 3 divides the above information into taxa of insects captured. The number of Thrips caught was overwhelmingly large, but this is thought to be due to the environment around the test house during this period.

With regard to Thysanidae, the sheet of the present invention was 106 for yellow, 696 for blue, and 7 for transparent. The H sheet was 31 yellow and 98 blue, and the M sheet was 3 yellow and 1 blue.
Similarly, for the aphid family, the sheets of the present invention scored 5 for yellow and 1 for transparent.
The H-sheet gave 3 in yellow and 1 in blue, and no capture was observed on the M-sheet.
Similarly, for Leafmineridae, the sheet of the present invention was blue 1 and transparent 1. The H sheet was yellow and a 4. No capture was observed with the M sheet.

Table 4 is a graph showing the results of Table 3, in which the number of catches per unit was calculated and arranged in descending order.
For Thysanaceae, present invention sheet (blue) 110.5, H sheet (blue) 39.2, invention sheet (yellow) 16.8, H sheet (yellow) 12.4, M sheet (yellow) 1.5. 4, the present invention (transparent color) 1.1, and the M sheet (blue) 0.5.
Similarly, for Aphids, the order is H sheet (yellow) 1.2, invention sheet (yellow) 0.8, H sheet (blue) 0.4, invention sheet (transparent color) 0.2. rice field.
Similarly, for Leafmineridae, the order was H sheet (yellow) 1.6, present invention sheet (blue) 0.2, and present invention sheet (transparent color) 0.2.

It can be seen that thrips tend to prefer blue, and the order is the sheet of the present invention (blue) and the H sheet (blue). Aphids and leafminers were generally less caught. It should be noted that the sheet of the present invention (transparent color) showed a track record of catching all kinds of minute insects, albeit in a small number.

Table 5 shows the results obtained by suspending each of the above sheets with a string in the space of the Shiga factory test house, holding the above period, and counting the number of captured animals after the period.
The adhesive side (one side or both sides) color and number of installations are the present invention: 2 blue on both sides, 2 yellow on both sides, H sheet: 2 blue on both sides, 2 yellow on both sides, M sheet: 2 blue on both sides, yellow on both sides ( Synthetic resin) 2 sheets, L sheet: double-sided yellow (made of paper) 2 sheets.
In the test house, there were many small insects of the whitefly family, and a small number of small insects of the thrips family were also present.

In the sheet of the present invention, which describes the results of the number of captured individuals, yellow 4,944 and 2,616, blue 5 and 12, H sheet yellow 5,504 and 2,208, blue 4 and 96, M sheet 1,440 and 1,520 for yellow, 56 and 31 for blue, and 1,568 and 3,472 for L sheet (made of paper) yellow.

Table 6 is a graph of the results of Table 5 (number of catches per unit). In descending order, H sheet (yellow) 2,201.6, L sheet (made of yellow paper) 1,388.8, H sheet (yellow) 883.2, Invention sheet (yellow) 784.8, M sheet (yellow) 690.9, M sheet (yellow) 654.6.

In terms of the number of unit catches by color, yellow is by far the most caught, and the number of catches of H sheet (yellow) is about 60% higher than that of L sheet (made of yellow paper), which ranks second. The sheet of the present invention is almost the same as the M sheet (yellow), indicating a certain number of unit catches.

Table 7 divides the above information into taxa of insects that were killed. The overwhelming number of whiteflies caught was presumably due to the environment around the test house during this period.

With regard to the whitefly family, the sheets of the present invention had 4,944 and 2,616 in yellow and 72 and 12 in blue. H sheet is yellow 5,504 and 2,208, blue 144 and 96, M sheet is yellow 1,440 and 1,520, blue 56 and 31, L sheet is yellow (made of paper) 1 , 568 and 3,472.
Similarly, with regard to Thysanidae, the sheet of the present invention was 2 for yellow and 5 and 5 for blue. The H sheet was blue and 4, and the M sheet showed no capture.

Table 8 is a graph of the results of Table 7 (number of catches per unit). In descending order, for whitefly, H sheet (yellow) 2,201,6, L sheet (paper yellow) 1,388.8, H sheet (yellow) 883.2, present invention sheet (yellow) 784 , 8, and M sheet (yellow) 690.9. Although thrips were few in number overall, 3 out of 4 of the sheets of the present invention showed a successful capture record.

A microscopic insect trapping test was conducted on the adhesive laminated sheet according to the present invention and the product of another company (M sheet).
Test location: Hyogo Prefectural Agriculture, Forestry and Fisheries Research Center (inside the house)
Period: November 21, 2019-December 12, 2019 Target: Onion thrips Product details:
・Product of the present invention (woven sheet, laminated polyethylene fabric with adhesive applied on both sides), 450 mm x 2000 mm
・M sheet (laminated synthetic resin double-sided adhesive sheet), 220mm x 100mm
Installation location: Inside the house Number of installations:
・Inventive product: 8 sheets of blue double-sided adhesive, 8 sheets of yellow double-sided adhesive ・M sheet: 8 sheets of yellow double-sided adhesive

Table 9 shows the number of catches after the target sheets were hung from wires at eight locations in the house and held for the above period. 8 sheets) and M sheet (yellow, 8 sheets made of paper). The number of captured units (the number of captured units per unit of 10 cm x 10 cm on one side) was 172 on average for the sheet of the present invention (yellow), 150.13 for the sheet of the present invention (blue), and 53.25 for the M sheet (yellow, made of paper). there were.

Table 10 is a graph of Table 9. All of the catch numbers of the sheets of the present invention show a high unit catch number.

INDUSTRIAL APPLICABILITY The technology according to the present invention provides a woven and knitted sheet that attracts and captures microscopic insects without using agricultural chemicals, and has high industrial applicability while preserving the environment.

100 Attracting/capturing sheet 200 Warp 210 constituting the attracting/capturing sheet Warp folded portion 300 Weft 310 constituting the attracting/capturing sheet Weft folded portion 400 Gap portion 500 rear)
600 Coating material layer 700 Adhesive layer

Claims (8)

A woven and knitted sheet for attracting microscopic insects, wherein both the warp and the weft constituting the sheet are flat yarns obtained by slitting and stretching a translucent synthetic resin film. The total warp width, which is the sum of the widths of all the warps forming the sheet, exceeds the total width of the sheet, or the total width of the wefts, which is the sum of the widths of all the wefts forming the sheet, is the total length of the sheet. The woven sheet for attracting microscopic insects according to claim 1, characterized in that it is arranged densely beyond 3. The woven fabric according to claim 1, wherein the warp or the weft is a flat yarn obtained by slitting and stretching a translucent synthetic resin film and pre-folding it before weaving and knitting. knitting sheet A micro-insect trapping sheet, characterized in that a substance for trapping micro-insects is added to the surface of the warp or weft that constitutes the woven sheet according to any one of claims 1 to 3. A covering material layer is formed on both sides of the woven and knitted sheet according to any one of claims 1 to 3 with a covering material having translucency, and the covering material layer is superimposed on the covering material layer to have translucency. A sheet for trapping microscopic insects characterized by forming an adhesive layer with an adhesive material 6. The micro-insect trapping sheet according to claim 5, wherein the translucent covering material has a yellow, blue or green color and is translucent. 7. The micro-insect capturing sheet according to claim 5 or 6, wherein the adhesive material layer is formed by transfer-coating the adhesive material. A translucent synthetic resin film is stretched after slitting, and the flat yarns are used as the warp and weft constituting a woven and knitted sheet, and the spread width of all the warps or all the wefts constituting the woven and knitted sheet. are densely arranged and woven over the entire width or the entire length of the woven and knitted sheet, both sides of the obtained woven and knitted sheet are covered with a translucent covering material, and the covering material layer of the covering material is overlaid. A method for producing a sheet for capturing microscopic insects, characterized by forming an adhesive material layer with an adhesive material having translucency.

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