JP3158042U - Agricultural net - Google Patents

Abstract

[PROBLEMS] To provide a net that can be used as an insect net, a light shield, and a heat shield as an agricultural net used for tunnel cultivation or the like. An agricultural net 1 is formed by weaving and knitting a synthetic fiber yarn into a net shape having an effect of preventing the invasion of pests. The central region 2 has a light shielding rate higher than that of the uncolored side regions 3 and 3 by coloring at least a portion of the synthetic fiber yarn. [Selection] Figure 3

Description

  The present invention relates to an insect net, a shading, and a heat shielding combined use net mainly used in tunnel cultivation and house cultivation.

  As nets for agriculture used for tunnel cultivation, house cultivation, and the like, nets having different sizes and shapes are used depending on the purpose of use. For example, as an insect repellent net, monofilament yarn is used for warp and weft to form a net, and the net is mainly used. As a light-shielding net, a yarn comprising a chain of chain stitches by warp knitting is used. A net knitted by inserting a light-shielding tape-like thread into the part is mainly used.

  Insect nets used in tunnel cultivation with insect nets are usually made of uncolored and transparent monofilament yarns, and even if they are effective in preventing the invasion of pests, they are also effective for shading and heat insulation. Is almost non-existent. For this reason, particularly when the sunlight is strong, such as in summer, light shielding and heat shielding are performed by overlapping a separate light shielding net or light shielding sheet on the tunnel ceiling or the like.

  However, it is uneconomical to stack separate light-shielding nets and light-shielding sheets as described above, and not only is troublesome covering work required, but also the ventilation of agricultural nets is impaired. However, there is a possibility that stuffiness or the like is likely to occur due to high temperature, and adversely affects the growth of cultivated vegetables and the like.

  The present invention has been made to solve the above-mentioned problems, and can be used as an insect net, mainly for tunnel cultivation, for insect-proofing, light-shielding, and heat-shielding, and covers a separate net or light-shielding sheet. There is no need to provide a net that can exhibit good insect-proofing, light-shielding and heat-shielding effects.

  The present invention for solving the above-mentioned problems is an agricultural net constructed by woven and knitted into a net with a mesh that is effective in preventing the invasion of pests by synthetic fiber yarns. The central region is characterized in that the light shielding rate is higher in the central region than in the uncolored both side regions by coloring at least a part of the synthetic fiber yarn.

  According to this agricultural net, the whole area is shaped like a net that is effective in preventing the invasion of pests. Since the light shielding rate is high, an appropriate light shielding and heat shielding effect can be exhibited independently without overlapping other light shielding nets and light shielding sheets.

  As the agricultural net, a net woven by using synthetic fiber yarns as warps and wefts, and the warp yarns colored in the central region is preferable. Thereby, the agricultural net of the present invention has a moderate light shielding effect in the central region while having an insect repellent effect which is not different from the conventional insect repellent net.

  As the above-mentioned agricultural net, transparent monofilament yarn is used for both the weft and the warp in the region on both sides, and the transparent monofilament yarn is used for the weft and the monofilament yarn colored on the warp is used in the center region. However, it is possible to increase the light blocking rate of the central region while keeping the light blocking rate of both side regions low.

  In the agricultural pad, the light shielding rate in the central region is preferably 20 to 75%, and the light shielding rate in both side regions is preferably less than 20%.

  In the above-described agricultural net, a transparent monofilament yarn may be woven as a synthetic fiber yarn for warp and weft, and the central region may be colored after weaving. Also in this case, similarly to the above, the light blocking rate of the central region can be made higher than that of the both side regions.

  The agricultural net of each of the above-described devices can be suitably used for tunnel cultivation.

  According to the agricultural net of the present invention, the central area in the width direction is colored, and the shading rate is higher than the non-colored both side areas. The center area corresponding to the ceiling of the tunnel can exhibit a moderate light shielding effect while exhibiting a good insect repellent effect due to the fact that it is effective in preventing infestation of pests, The heat shielding effect can also be exhibited. Therefore, especially in summer, there is no need to stack a separate light-shielding net or light-shielding sheet on the tunnel ceiling, etc., and it is economical and the ventilation of the agricultural net is not impaired. There is no risk of stuffiness or the like due to high temperatures, and growth of cultivated vegetables and the like is not impaired.

1 is a schematic perspective view showing an embodiment of an agricultural net of the present invention. It is a one part enlarged plan view of the center area | region of the agricultural net same as the above. It is a schematic perspective view of the use state of an agricultural net same as the above.

  Next, embodiments of the present invention will be described based on examples shown in the drawings.

  This agricultural net (hereinafter sometimes simply referred to as a net) 1 is basically a net used for insect-proofing, light-shielding and heat-shielding in tunnel cultivation, and is composed of synthetic fiber yarns, preferably monofilament yarns. It is made by weaving and knitting in a net shape with a mesh that is effective in preventing intrusion. For example, the synthetic fiber yarn such as the monofilament yarn is woven using warps and wefts. The mesh of the net 1 is appropriately set in the same manner as in the past in consideration of the insect repellent effect, and for example, the net is configured so as to form an aperture of 0.3 to 1.0 mm.

  In the case of the present invention, the agricultural net 1 is partitioned into a central region 2 in the width direction and both side regions 3 and 3, and the central region 2 is colored with at least some synthetic fiber yarns. Therefore, the light shielding rate (the light shielding rate with respect to the non-net state) is higher than that of the uncolored side regions 3 and 3.

  In the case of the figure, in the agricultural net 1 woven using the monofilament yarn as the synthetic fiber yarn as the warp 4 and the weft 5, the warp 4 is colored in the central region 2 so that the central portion The shading rate of the region 2 is higher than that of the uncolored side regions 3 and 3.

  Specifically, transparent monofilament yarn is used for both the warp 4 and the weft 5 in the both side regions 3 and 3, and a monofilament yarn transparent to the weft 5 is colored in the warp 4 in the central region 2. The yarn is used to be woven, so that the light shielding rate of the central region 2 is higher than that of the side regions 3 and 3.

  The central region 2 and the side regions 3 and 3 have a light shielding rate of 20 to 80%, preferably 25 to 75%, and the side regions 3 and 3 are colorless and transparent. Even a monofilament yarn is light-shielded slightly by weaving with the warp 4 and the weft 5, so that the light-shielding rate is less than 20%, preferably 5-20%.

  The color of the warp 4 used for the central region 2 can be any color such as black, green, white, milky white, silver, etc., and an appropriate color can be selected according to the light shielding rate to be obtained. You can choose. It is also possible to use a translucent monofilament yarn colored in the same manner as described above for the warp yarn 4 in the central region 2.

  The thickness of the synthetic fiber yarn such as the monofilament yarn to be used can be appropriately selected according to the set scale and the like. For example, a yarn of 34 to 340 dtex is used.

  Note that the present invention is not limited to a net woven using synthetic fiber yarns as warps and wefts as described above. For example, a monofilament yarn may be applied to a yarn portion composed of a chain row of chain stitches by warp knitting. In the net which is knitted by inserting it horizontally as an insertion thread, the insertion thread in the central area can be colored so that the shading rate is higher than that in both side areas.

  In addition, the present invention is a net woven using a transparent monofilament yarn as a synthetic fiber yarn for warp and weft. It is also possible to carry out with a height higher than that of both side regions.

  In the agricultural net 1 having the above-described configuration, the width and length of the entire net, the width of the central region 2 and the side regions 3 and 3 and the like can be appropriately set according to the use state and application in tunnel cultivation. The net width is 3 to 6 m, and the length is several tens of meters to several hundreds of meters. The width of the central region 2 is set to about ½ of the net width, for example, around 1.5 m when the net width is 3.0 m, and around 3.0 m when the net width is 6 m, Further, the widths of the side regions 3 and 3 are set to about ½ of the remaining width. It should be noted that the widths of the side regions 3 and 3 are not necessarily the same size, and a slight dimensional difference can be provided.

  For example, as shown in FIG. 3, the agricultural net 1 having the above-described configuration is used with the central region 2 as a tunnel ceiling in the tunnel cultivation of vegetables. In this use, the central area 2 corresponding to the tunnel ceiling part is colored while exhibiting a good insect repellent effect because the entire net has an effect effective in preventing the invasion of pests. The shading rate is higher than the uncolored side regions 3 and 3. Therefore, it is possible to exhibit appropriate light shielding and heat shielding effects independently without overlapping other light shielding nets and light shielding sheets.

  Therefore, especially in the summer, there is no need to stack a separate light-shielding net or light-shielding sheet on the tunnel ceiling, etc., and it is economical and the ventilation of the agricultural net is not impaired. There is no risk of stuffiness or the like occurring at high temperatures, and the growth of cultivated vegetables or the like is not impaired.

  In addition, although illustration description is abbreviate | omitted, the agricultural net of this invention can also be used as a light-shielding and heat-insulating insect repellent net used in combination with a house sheet or the like in house cultivation. Has the same effect as.

  DESCRIPTION OF SYMBOLS 1 ... Agricultural net | network, 2 ... Center part area | region, 3, 3 ... Both-sides area | region, 4 ... Warp, 5 ... Weft

Claims (6)

  It is an agricultural net constructed by weaving and knitting into a net shape with the effect of preventing invasion of pests by synthetic fiber yarn, divided into a central region in the width direction and both side regions, and the central region is The agricultural net characterized in that the shading rate is higher than the uncolored both side regions by coloring at least some synthetic fiber yarns.   The agricultural net according to claim 1, wherein the net is a net woven with synthetic fiber yarns as warps and wefts, and the warp yarns are colored in the central region.   The agricultural monolith according to claim 2, wherein a transparent monofilament yarn is used for both the warp and the weft in the both side regions, a transparent monofilament yarn is used for the weft and a monofilament yarn colored in the warp yarn is used in the central region. Net.   The agricultural net according to claim 3, wherein the shading rate of the central region is 20 to 75% and the shading rate of both side regions is less than 20%.   The agricultural net according to claim 1, wherein a transparent monofilament yarn is woven as a synthetic fiber yarn using warp and weft, and the central region is colored after weaving.   It is a net | network used for tunnel cultivation, The agricultural net | network of any one of Claims 1-5.

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