JPS586275Y2 - Covering material for flower cultivation - Google Patents

Description

[Detailed description of the invention] This invention is suitable for flowers such as roses, camellias, rhododendrons, and peonies.
It relates to a covering material for cultivating gardenias, tulips, carnations, lilies, orchids, etc.

Conventionally, various films have been used for hotbeds, greenhouses, etc., but although these films have excellent heat retention effects,
It lacks ventilation and moisture permeability, hinders the breathing of the leaves and stems, and also has the disadvantage of easily damaging the leaves and leaves, such as causing swelling and leaf burn. This method requires secondary materials, which poses problems in terms of cost and labor.

In view of these conventional drawbacks, the present invention has developed a covering material for flower cultivation that not only satisfies heat retention, but also has appropriate sunlight permeability, air permeability, and moisture permeability, and is excellent in construction and cultivation management. In other words, the present invention has a basis weight of 30 to 200 g/rri.
'Preferably 50 to 180 g/m'', and the expansion/contraction ratio in at least one direction is 20% or more, preferably 25
~80% and a sunlight transmittance of at least 30%,
The flower cultivation covering material is preferably made of a synthetic fiber knitted fabric having a content of 40% or more.

First, the covering material of the present invention is a knitted fabric obtained from various synthetic fibers obtained from synthetic polymers such as polyester, polyamide, polyolefin, or polyacrylic, preferably continuous filament yarn.

Further, as such a knitted fabric, preferably a knitted structure that does not fray at the damaged part, such as double denby half tricot, satin tricot, reverse half, etc., is used.

Woven fabrics have low elasticity, making it difficult to inexpensively produce fabrics with the elasticity specified in the present invention, and are undesirable because they tend to be easily damaged due to their low elongation, and the damaged areas tend to fray.

Similarly, natural fibers such as cotton and wool are disadvantageous in terms of manufacturing costs, and if you try to obtain a light transmittance of 30% or more as specified in the present invention, the fibers will become coarse and it will be difficult to obtain the desired weight. It is also not preferred because of its strong water absorption.

However, the weight of the knitted fabric is 30 to 200 g/m
s Preferably, it is knitted within the range of 50 to 180 g/m, and if the basis weight is less than 30 g/m, the sunlight transmittance will increase, but the breathability will also increase, and a sufficient heat retention effect cannot be obtained. In addition, the knitted fabric is easily damaged by tree branches, etc., which impairs workability, and during rain, rain passes through the knitted fabric and wets the leaves and stems, lowering the temperature of the leaf surface and causing freezing at night during extremely cold seasons. So I don't like it.

On the other hand, if the basis weight exceeds 200 g/m'', the sunlight transmittance and air permeability will decrease, and the photosynthetic action of the leaves will not be carried out sufficiently, and the leaves will easily swell, which is not preferable.

In addition, the knitted fabric has a stretch rate (JIS) in at least one direction.
-L-1068) is 20% or more, preferably 25
The elasticity of knitted fabrics must be ~80%, and knitted fabrics with a small expansion/contraction ratio of less than 20% will not only have poor workability, but also have poor flexibility when the wind and rain become strong and leaves, stems, and leaves shake violently. It is undesirable because the leaves are easily damaged due to branch breakage, shearing of leaves, and shearing of buds.

However, if the expansion/contraction rate is too large, the tension applied to the knitted fabric may differ locally, making it easy for the date to change, making it difficult to construct the knitted fabric to provide constant temperature and air permeability, which is not preferable.

Furthermore, in the present invention, it is necessary that the sunlight transmittance of the knitted fabric is at least 30%, preferably 40% or more, and 3.
If it is less than 0%, the leaves or stems and leaves of flowers covered with the knitted fabric will not be sufficiently irradiated with sunlight, and a sufficient effect in promoting the growth of leaves and buds will not be obtained.

Of course, it is preferable that the sunlight transmittance be as high as possible, but it is not preferable to have a sunlight transmittance of more than about 80%, due to date restrictions and to prevent blurring when the light rays become strong in March and April.

Here, the light transmittance is determined by irradiating the knitted fabric with artificial light of 15,000 lux, which corresponds to the average sunlight intensity in winter, and measuring the amount of incident light (Io) and transmitted light (I) using a phototube illumination meter (Toshiba ) and the ratio α/I.

xioo)%.

Next, the present invention will be further explained with reference to the drawings.

Figure 1 shows an example of the covering material of the present invention, using a known tricot knitting machine with two strands and a gauge of 28, with 20D nylon threads on the front and 7 nylon threads on the back.
It is a double denby knitted fabric using 0D and having a knitting structure of 1.0 to 1.2 on the front and 2.3 to 1.0 on the back.

FIG. 2 shows the method of applying the knitted fabric of FIG. 1 to flowers and main holes, in which a shows an example of direct knitting and b shows an example of indirect knitting.

The covering material of the present invention may be employed in either method a or b, but indirect application in b is preferred, especially after the time when new shoots of flowering plants and plant holes emerge.

By adopting the coating material of this invention, it is possible to prevent cold wind damage in winter, such as cold air that is dry at low temperatures and comes into direct contact with the leaves and stems, causing them to become dehydrated and become red, and frostburn caused by frost penetration. It can protect new shoots, leaves, and stems.

In other words, the coating material of the present invention not only prevents cold wind, but also has excellent heat retention and moisture permeation prevention properties, and has a remarkable effect on preventing insect infestation.

The covering material of the present invention has moderate elasticity, good workability, and is easy to store. For example, when applied directly, it does not damage the stems, branches, or tree leaves in the holes of plants; it moves with the stems, leaves, or branches due to the wind, so it does not damage buds or branches. It has the advantage of not rubbing the flowers.

[Brief explanation of the drawing]

FIG. 1 shows an example of the flower cultivation covering material of the present invention. FIG. 2 shows the method of applying the covering material, where a shows an example of direct application and b shows an example of indirect application. In the figure, 1...knitted fabric, 2...plant hole, 3
...Knitted fabric stretched over the frame.

Claims (1)

[Scope of utility model registration request] A covering material for flower cultivation comprising a synthetic fiber knitted fabric having a basis weight of 30 to 200 g/m, an expansion/contraction ratio in at least one direction of 20% or more, and a light transmittance of 30% or more.