JP7219969B2 - Plant cultivation system, fiber yarn, and method for producing fiber yarn - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for cultivating plants, a filament body composed of filament yarns, and a method for producing filament yarns constituting the filament filament .

Conventionally, a plant cultivation apparatus is known (see Patent Document 1).
This plant cultivation apparatus includes a plant support plate in the upper part of the cultivation tank, a nutrient solution is retained in the lower part of the cultivation tank, and the upper part of the cultivation tank is air filled with water vapor having a relative humidity of 95% or more. A part of the root of the plant supported by the plant support plate is left in the space and the other part of the root is left in the nutrient solution.

JP 2007-195514 A

However, in the plant cultivation apparatus described in Patent Document 1, it is essential to retain the nutrient solution in the air space and the lower part in the cultivation tank, and in some cases, a nutrient solution tank and a pump are also used separately. The problem is the size and complexity.
In addition, the plant cultivation apparatus of Patent Document 1 requires a cultivation tank having an air space and capable of retaining nutrient solution in the lower part, a nutrient solution tank, a pump, etc. in order to cultivate plants. , leading to an increase in the cost of plants to be cultivated, a reduction in profits, and the like.

In view of these points, the present invention provides a method for "downsizing and simplification of the system" by setting the crimp rate of the crimped fiber thread body to 10% or more for supporting the plant in the container . and a cost reduction, a plant cultivation system, a fiber filament , and a method for producing the fiber filament .

A cultivation system 1 according to the present invention is a plant cultivation system, and includes a container 2 for containing the plant and a fiber filament 3 supporting the plant in the container 2, and the fiber filament 3 is configured. The fiber thread 4 is crimped to have a helical appearance , and the first feature is that the crimp ratio K of the fiber thread 4 is 10% or more.

A second feature of the plant cultivation system 1 according to the present invention is that, in addition to the above first feature, the fiber filaments 3 have a porosity G of 80% or more.

A third feature of the plant cultivation system 1 according to the present invention is that, in addition to the first or second feature, no soil is contained in the container 2, and the roots of the plant are It exists between the fiber threads 4 in 3.

Due to these characteristics, by setting the crimp rate K of the fiber thread body 3 that crimps the fiber thread body 3 that supports the plant S in the container 2 and presents a spiral appearance to 10% or more, the patented Unlike Document 1, the cultivation tank that has an air space and can retain the nutrient solution at the bottom, the nutrient solution tank, the pump, etc. are not required, so the size and simplification of the cultivation system 1 can be achieved ( "System miniaturization and simplification").
In addition, the fiber thread body 3 composed of the fiber thread 4 having a crimp ratio K of 10% or more is very inexpensive, and the cost of the plant S to be cultivated can be kept low, leading to an increase in profit. (e.g., “lower costs”).

Further, by setting the void ratio G of the fiber thread body 3 composed of the fiber thread body 3 which is crimped to have a helical appearance to 80% or more, the fibers stored in the fiber thread body 3 With water, it is possible to place the plant S (root N, etc.) in a steamy atmosphere where water vapor drifts, and the growth of the plant S can be further promoted with a very simple and simple structure (further "system miniaturization / simplification and cost reduction).

Furthermore, since no soil is put in the container 2 (that is, no soil is used in the cultivation system 1), the growth of the plant S is not hindered by fungi existing in the soil, and cultivation is performed using only soil. The growth speed is faster than that of the plants that have been grown (see Fig. 7), which leads to an increase in profits. Costs such as disposal costs can be reduced.
At the same time, by allowing the roots N of the plant S to exist between the fiber threads 4 of the plant support 3 , the roots N can be placed in an atmosphere with a high water vapor concentration, and the growth of the plant S is further enhanced. can promote.
This also realizes further "downsizing and simplification of the system" and "reduction of cost".

A fiber thread body 3 according to the present invention is a fiber thread body composed of a fiber thread 4, and the fiber thread is crimped to have a helical appearance . A first feature is that the crimp rate K of 4 is 10% or more.

Due to this feature, by setting the crimp rate K of the crimped fiber thread 4 of the fiber thread body 3 to 10% or more, the fiber thread body 3 can be used as a plant S cultivation system, unlike Patent Document 1. 1, since there is no need for a cultivation tank or the like that has an air space and can retain the nutrient solution at the bottom, the cultivation system 1 can be made smaller and simpler, and the crimp rate K The fiber filament 3 composed of the fiber filament 4 having a content of 10% or more is very inexpensive, and the cost of the plant S to be cultivated can be kept low, leading to an increase in profit (that is, "downsizing of the system and simplification” and “cost reduction”).

The method for producing a fiber yarn according to the present invention includes a first step T1 in which a blank fiber yarn is once planted in a base fabric to form a precursor pile fabric, and a first step T1 in which the precursor pile fabric in the first step T1 is once planted. a second step T2 for unwinding the filament yarn 4 that has been unwound, and the filament yarn 4 that has been unwound is crimped and has a helical appearance ; A first feature is that the ratio K is 10% or more.
In the present invention, "the blank fiber yarn is temporarily planted into the base fabric to form a precursor pile fabric" means that the blank fiber yarn is once planted into the base fabric to form the precursor pile fabric. means

According to this feature as well, by unraveling the precursor pile fabric in which the blank fiber yarn is once planted in the base fabric , and manufacturing the crimped fiber yarn 4 with a crimp rate K of 10% or more, Patent Document 1 Unlike the above, when the fiber thread 4 is used in the cultivation system 1 of the plant S, there is no need for a cultivation tank or the like that has an air space and can retain the nutrient solution in the lower part. 1 can be downsized and simplified, and the fiber thread 4 manufactured by this manufacturing method is very inexpensive, and the cost of the plant S to be cultivated can be kept low, which leads to an increase in profit ("Compact system simplification and cost reduction).

According to the plant cultivation system 1, the fiber thread 4 , and the method for producing the fiber thread 4 according to the present invention, the crimp rate of the fiber thread 4 obtained by crimping the fiber thread body 3 that supports the plant in the container is 10% or more, it is possible to achieve "downsizing and simplification of the system" and "reduction of cost".

1 is a perspective photograph substituting for a drawing, illustrating a plant cultivation system and a fibrous filament body according to the present invention. It is a plan view photograph substituting for a drawing, illustrating a plant cultivation system and a fibrous filament. It is a drawing substitute photograph of the side view which illustrates a plant and a fibrous filamentous body. It is a drawing substitute photograph of the bottom view which illustrates a plant and a filamentous body. FIG. 11 is a perspective drawing-substituting photograph illustrating another fiber filament; FIG. FIG. 10 is a plan view photograph substituting for a drawing, illustrating a fiber yarn that is crimped and has a helical appearance; FIG . FIG. 10 is a drawing-substituting photograph illustrating the difference in plant growth between when no soil is used and when only soil is used in the cultivation system according to the present invention. FIG. 1 is a flow chart showing a method for manufacturing a fiber yarn according to the present invention;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<Cultivation system 1>
1 to 7 show a plant S cultivation system 1 (hereinafter also referred to as "cultivation system 1") according to the present invention.
This cultivation system 1 has a container 2 for containing a plant S and a fibrous filament 3 inside the container 2 .

The cultivation system 1 may be installed anywhere. For example, it may be installed outdoors such as fields, gardens, and farms, inside vinyl greenhouses, or in general houses such as living rooms, kitchens, entrances, and balconies. It may be provided in a restaurant, an office, a factory, or the like.
In Cultivation System 1, soil may not be used at all. In Cultivation System 1, which does not use soil at all, and when only soil is used, seeds are sown at the same time (seeds are sown) and cultivated in the same environment. First, the plant S cultivated in the cultivation system 1 is clearly taller (growth height) than the plant S cultivated using only soil, has a darker green, and has wider branches and leaves (Fig. 7).
Below, the plant S cultivated by the cultivation system 1 is described first.

<Plant S, root N>
As shown in Figures 1-4,7. A plant S is cultivated in the cultivation system 1 described above.
The plant S to be cultivated is not particularly limited. For example, bulbous plants such as garlic and tulips; It may be a plant to be cultivated, or a succulent plant such as Bella, or a case where potatoes are grown from seed potatoes.

Plants S may be other vegetables and fruits (fruits), grains such as rice and wheat, mushrooms, grasses, trees, flowers, and other foliage plants.
Such a plant S naturally has roots N, and the roots N exist between the fiber threads 4 in the fiber thread bodies 3 described later.

Here, "the root N exists between the fiber threads 4" means not only the case where the root N exists between one fiber thread 4 and another fiber thread 4, It also includes the case where it exists between one fiber and another fiber inside one fiber thread 4 .
In addition, when the plant S is mushrooms, the root N of the plant S contains hyphae of mushrooms.
In addition, the smell of garlic cultivated in the cultivation system 1 is suppressed, and in particular, it can be said that the smell is further suppressed when soil is not used in the cultivation system 1 (inside the container 2).

The number of plants S cultivated in one cultivation system 1 is also not particularly limited, and one cultivation system 1 may cultivate one plant S, or one cultivation system 1 may cultivate a plurality of plants. S may be cultivated.
In addition, when cultivating a plurality of plants S in one cultivation system 1, the container 2, which will be described later, has a configuration capable of cultivating a plurality of plants S.

< Container 2>
As shown in FIGS. 1, 2, and 7, the container 2 contains the above-described plant S, and the fiber filaments 3, which will be described later, are also contained therein.
The container 2 may have any shape as long as it can contain the plant S and the fibrous filaments 3. For example, the container 2 may be in the shape of a plate or a tray (tray) having a plurality of recesses 2a. I do not care. In this case, the opening shape of each recess 2a may be substantially circular, substantially square, substantially elliptical, substantially rectangular, or substantially polygonal.

In this case, each recess 2a may contain one plant S, or a plurality of plants S may be contained. It can be said that N is not involved.
The container 2 may have a shape having only one concave portion 2a, and may be pot-shaped (round and deep), bowl-shaped (opening shape is not limited to a substantially circular shape), or planter-shaped (substantially rectangular parallelepiped). shape), etc., and the shape of the opening in this case may be substantially circular, substantially square, substantially elliptical, substantially rectangular, or substantially polygonal.

Also in this case, one plant S may be contained in each recess 2a , but a plurality of plants S may be contained. It can also be said that the roots N of each other are not entangled.
The container 2 may be provided with a support, a cover, a shelf, or the like, or the container 2 itself may be arranged beside a wire mesh, a wall, a fence, or the like.
In addition, the container 2 may be provided with a recess 2a in the floor of the above-described restaurant or the like, or may be a recess 2a provided by digging the soil in a field, garden, etc. In this case, the floor surrounding the recess 2a It can also be said that the soil itself is the container 2 .

The size of the container 2 is also not particularly limited, and any size may be used. If the length in the hand direction is 5 cm or more and 100 cm or less, the depth of each recess 2a is 1 cm or more and 30 cm or less, or the shape of the opening of the recess 2a is, for example, a substantially square shape, the length of each side is 3 cm. It may be more than or equal to 30 cm or less.
In addition, if the container 2 is pot-shaped or the like, the diameter and the length of each side may be 3 cm or more and 100 cm or less, and the depth of the container 2 may be 5 cm or more and 150 cm or less.

The material of the container 2 is also not particularly limited, but for example, it is made of synthetic resin (plastic), unglazed (terracotta), ceramics, glass, wood, or tin (copper plate plated with tin). , metal such as iron, concrete, cement, FRP (fiber reinforced plastic), and the like.
In addition, the material of the container 2 may be a fabric such as felt fabric (nonwoven fabric), woven fabric, or knitted fabric. . Also, the color of the container 2 is naturally not particularly limited, but may be, for example, white, black, red, brown, blue, yellow, green, or light blue.

< Fiber filament 3>
As shown in FIGS. 1 to 7, the fiber thread body 3 supports the plant S in the container 2 described above, and is composed of fiber thread 4 described later, and a predetermined amount of fiber thread 4 is gathered. It can be said that it is just one mass.
Here, "supporting the plant S" means not only the case where the whole or at least a part of the plant S is on (mounted on) the fibrous filament 3, but also the whole or at least a part of the plant S. A case where the part is inside the fiber filament 3 (buried inside) is also included.
The number of fiber threads 4 constituting the fiber thread body 3 is not particularly limited, but may be one or more, for example, it may be one or more and 100,000 or less.

In addition, when the fiber thread body 3 is composed of one fiber thread 4, it can be said that the one thread is very long, and the fiber thread body 3 is composed of a plurality of fiber threads 4. In this case, the length of each fiber thread 4 may be substantially the same, or may be different.
The fiber filament 3 has an irregular shape, and can be said to be put into any container 2 (or its recessed portion 2a) according to its shape and fill the inside of the container 2 ( recessed portion 2a).

The ratio of the plant support 3 in one container 2 ( concave portion 2a) (also referred to as filling rate) is not particularly limited, but is, for example, 10% or more and 100% or less, preferably 30% or more and 95%. Below, more preferably 50% or more and 90% or less.
In addition, one or a plurality of fiber filaments 3 may be present for one cultivation system 1, and in the case of a plate-shaped container 2 having a plurality of recesses 2a, it is the same as the recesses 2a. It can be said that there are as many fiber threads 3 as there are.

There is no particular limitation on the size (volume) of one lump (that is, the fiber thread body 3 according to the present invention) in which a predetermined amount of the fiber thread body 4 is gathered in the fiber thread body 3, but for example, It may be 1 cm ³ or more and 1000000 cm ³ or less.
The weight of the fiber thread body 3 according to the present invention is also not particularly limited, but may be, for example, 0 g or more and 10000 g or less.

The number of fiber threads 4 included as the fiber thread body 3 according to the present invention is also not particularly limited, but may be, for example, 1 or more and 100,000 or less.
The fiber thread body 3 according to the present invention may be put in a bag or wrapped.

< Fiber thread 4>
As shown in FIGS. 1 to 7, the fiber thread 4 constitutes the fiber thread body 3 described above, and the fiber thread 4 is crimped .

The filament yarn 4 crimped in this way can also be said to be a denit yarn when the filament yarn 4 is unwound from the knitted fabric .

Specifically, any material may be used to form the fiber thread 4. For example, acrylic fiber containing polyacrylonitrile (PAN) as a main component, rayon fiber, cupra fiber, acetate fiber, etc. may be used. Synthetic fibers, natural fibers such as cotton and hemp may be used, and polyester fibers such as polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT), nylon ( polyolefin fibers such as polyamide) fiber, polyethylene (PE), polypropylene (PP), synthetic fibers such as polyvinyl alcohol (PVA) fiber (vinylon fiber), polyurethane (PU) fiber, glass fiber, wool, silk, etc. , these may be used singly or in combination.

The fineness of the fiber thread 4 may be any value, and for example, the total fineness may be 20 dtex or more and 3000 dtex or less.
The number of filaments in the fiber thread 4 is also not particularly limited, and may be, for example, plural (multifilament) or single (monofilament).

The length of the fiber thread 4 is determined by untying the fiber thread body 3 which is loaded in the recessed portion 2a of the container 2 and is ready for use, and taking out the fiber thread 4 without breaking the crimped shape. It is measured by adhering and fixing to the adhesive surface of an adhesive sheet that is flatly supported without breaking the crimped shape.
The measurement unit length of the fiber thread 4 to be measured is obtained by straining the fiber thread 4 to break the crimped shape (peaks and valleys) and deforming it in a straight line, and then deforming and continuing in a straight line. Length that can measure the distance between two crimp traces observed adjacent in the length direction of 4 (between two crest crests or between troughs) Good if

If the fiber yarn 4 is a heated yarn, its twist direction may be either S or Z direction. Furthermore, it may be Z-twisted, or conversely, the Z-twisted fiber yarn 4 itself may be further S-twisted.

The number of crimps is obtained by counting all peaks and valleys of the crimp shape and dividing by two.
The specific color of the fiber thread 4 is naturally not particularly limited, but for example, it may be white, light blue, black, red, brown, blue, yellow, or green. I do not care.

<Crimp rate K of fiber thread 4>
The crimp rate K of the fiber yarn 4 described so far is that the shape of two adjacent crimps (peak and valley) is broken and elongated by deformation in a straight line, and the fibers that are elongated and continue in a straight line The length of the distance ( M) and the length (L) of the original crimped fiber thread 4 before elongation (ML) is the length (L) of the original crimped fiber thread 4. It can be calculated as the percentage (X) of the quotient of the divided values, ie, (X)=100×(ML)/(L)(%).

Thus, by setting the crimp rate K of the crimped fiber thread 4 of the fiber thread body 3 supporting the plant S in the container 2 to at least 10% or more, the plant S is propagated and transported. It can be said that freshness can be maintained, and even if it is cultivated or transported, dozens of fiber filamentous bodies 3 can be efficiently handled by loading them in a tray or the like. If the fertilization management during the process is simplified and becomes easier, and if the steam atmosphere (or the lower layer of the steam drifting layer) is wrapped in a water storage container , the steam drifting layer will be dried during the cultivation process and transportation process. It can be said that the danger of irrigation is avoided, and irrigation management is simplified and becomes easier.
In addition, the gap surrounded by the fibers constituting the fiber thread 4 in the fiber thread body 3 is configured to envelop the root N and the stem of the plant S in a steam atmosphere, and the fruits and the like obtained by cultivation are formed. It can be said that the moisture content of the crop is suppressed, and fresh and delicious fruits are harvested.

<Porosity G of Fiber Thread 3>
Regarding the fiber thread body 3 composed of such fiber thread 4, the porosity G thereof will also be mentioned below.
The "porosity G" in the present invention means "the proportion of gaps (spaces) per unit volume expressed as a percentage", and is also called porosity, porosity, or porosity.

The porosity G of the fiber filaments 3 is calculated using the following formulas (1) and (2).
Note that the method of calculation using the formula (1) can also be said to be the Archimedes method.

The void ratio G of the fiber filaments 3 may be 80% or more (less than 100%), preferably 90% or more (less than 100%), more preferably 95% or more (less than 100%), and still more. Preferably, it may be 99% or more (less than 100%).
It can also be said that the fiber thread 3 having such a void ratio G makes it easier for the roots N of the plant S to be cultivated to exist between the fiber threads 4 that constitute the fiber thread 3 .

<Manufacturing method of fiber thread 4>
As shown in FIG. 8, the manufacturing method of the fiber thread 4 has a first step T1 and a second step T2.
It can be said that the above-described fiber thread 4 can be manufactured only by these two steps T1 and T2.

<First step T1>
As shown in FIG. 8, the first step T1 is the first step in the manufacturing method of the fibrous yarn 4, in which the blank fibrous yarn (which will later become the fibrous yarn 4) is once implanted in the base fabric. This is a step of forming a precursor pile fabric .
Here, "the blank fiber yarn is temporarily planted into the base fabric to form a precursor pile fabric " means, as described above, the operation of temporarily planting the blank fiber yarn into the base fabric to produce a precursor pile fabric. is to do

<Pioneer pile fabric>
The precursor pile fabric is an article made by temporarily planting blank fiber threads (which will later become fiber threads 4) into a base fabric.
If the blank fiber yarn is once planted in the base fabric to make the precursor pile fabric, the precursor pile fabric is, for example, once planted with the blank fiber yarn (the blank fiber yarn is It may be a rug (including tufted carpet, mat, artificial lawn, etc.) planted (tufted) on the base fabric as pile yarn.

If the precursor pile fabric is a product made by planting the blank fiber yarn (which will later become the fiber yarn 4) in the base fabric, the precursor pile fabric is a knitted fabric on the back of a tufted carpet or the like. or a knitted base fabric 11 tufted with blank fiber threads , or a woven fabric attached to the back of a tufted carpet or the like. The base fabric 11 may be tufted with blank fiber threads, or the like, or a woven or knitted fabric attached to the back of a tufted carpet or the like, or a blank on the woven or knitted base fabric 11 . A tufted fiber thread may be used.

As mentioned above, if the carpet is planted with the pioneer fiber product, it is a carpet or the like obtained by tufting the blank fiber yarns as a pile on the base fabric 11 as described above.
The pile which is the fibrous yarn 4 is assumed to be a loop pile.

The nap height (pile foot) of the pile may also have any value.
In addition, in the first step, the precursor pile fabric may not be heat-set (heat not applied) before the second step is performed, and the precursor pile fabric may be heat-set before the second step. I don't mind.

<Second step T2>
As shown in FIG. 8, the second step T2 is the second step in the manufacturing method of the fibrous yarn 4, in which the forerunner pile fabric produced in the first step T1 is once planted into the base fabric. It is a process of unwinding the fiber thread that has been wrapped.
This unwound yarn is the above-described fiber yarn 4, which is crimped as described above and has a crimp ratio K of 10% or more.

In the present invention, "unwinding the filament yarn 4 from the precursor pile fabric " means, in detail , the operation of once planting the blank filament yarn into the base fabric to form the precursor pile fabric in the above-described first step T1. In the case of the precursor pile fabric made by the work , it means taking out the fiber thread 4 planted as the pile from the rug once planted in the base fabric with the blank fiber thread as the pile. , the operator may use a hand or tool, or an apparatus (for example, using a looper of a tufting machine, etc.) .

<Others>
The invention is not limited to the embodiments described above. Each configuration of the cultivation system 1, the fiber thread 4, the manufacturing method of the fiber thread 4, etc., or the overall structure, shape, dimensions, etc., can be appropriately changed in line with the gist of the present invention.
Cultivation system 1 may use soil.
In the cultivation system 1, the fiber filaments 3 may contain liquid fertilizer , or solid fertilizer may be used. It is to be soaked in water or the like together with the fibrous filaments 3 .
The cultivation system 1 may contain the container 2 in another container 2' . may be provided with a hole through which the

The container 2 may be bag-shaped, and the bag-shaped container 2 may be made of a film made of synthetic resin or the like.
The fiber thread body 3 may only have the fiber thread body 3 and the plant S.
The fiber thread 4 may be in a state such that the crimped fiber thread 4 itself meanders or waves.
As a method for manufacturing the fiber thread 4, it may be manufactured by a method other than the manufacturing method having the first step T1 and the second step T2 described above. ) may only have a step of twisting.

As described above, the plant cultivation system according to the present invention can be used not only outdoors such as fields, gardens and farms, and inside greenhouses, but also in general houses such as living rooms, kitchens, entrances, and balconies. It may be used in stores, offices, factories, etc., but it can also be used in IoT (Internet of Things) farms, IoT greenhouses, IoT general houses, restaurants, etc. It can be used in offices, factories, etc., and if it is used as a means of transporting fresh plants, it can be said that it can be used to deliver plants in an active state in which they can be grown without requiring water storage means.
The fiber filaments 3 according to the present invention are naturally used in the above-described plant cultivation system, but may also be used in cultivation systems other than the above-described plant cultivation system, or may be used in bedding or cushions instead of cultivation systems. It can be used as a material, a shock absorbing material for packing, a heat insulating material, etc., and if it is used as a means of transporting fresh plants, it can be delivered to consumers in an active state that can grow plants without requiring water storage means. It can also be said that it can be used for
The method for producing the fiber yarn 4 according to the present invention is used for producing the fiber yarn 3 in the above-described plant cultivation system, but it is used for producing the fiber yarn 3 in a cultivation system other than the above-described plant cultivation system. In addition to being used for cultivation systems, it can also be used to manufacture bedding, cushioning materials, shock absorbing materials for packaging, heat insulating materials, etc. If used for transportation of fresh plants, it can be used as a water storage means. It can also be said that it can be used to deliver plants to consumers in an active state that can be grown without needing them.

1 cultivation system 2 containers
2a recess
3 filaments
4 fiber thread
Crimp rate of S plant K fiber thread
G Porosity of fiber filaments
N Plant root T1 First step T2 Second step

Claims (4)

A plant cultivation system,
It has a container (2) for containing the plant, and a fiber filament (3) consisting of a fiber filament (4) supporting the plant in the container (2),
The fiber thread body (3) is composed of a fiber thread (4) which is composed of a blank fiber thread and is crimped to have a helical appearance ,
A cultivation system characterized in that the crimp rate of the fiber thread (4) is 10% or more. 2. The cultivation system according to claim 1, characterized in that the void ratio of the fibrous filaments (3) constituting the fibrous filaments (4) is 80% or more. A fiber thread (4) composed of a blank fiber thread,
The fiber thread (4) is crimped and has a helical appearance ,
A fibrous yarn, wherein the crimp rate of the fibrous yarn (4) is 10% or more. A method for producing a fiber thread (4), comprising:
A first step (T1) of forming a precursor pile fabric of fiber yarns (4) tufted (implanted) on a base fabric using blank fiber yarns as pile yarns; and a second step (T2) of taking out the fiber thread (4) crimped from the pile fabric and exhibiting a helical appearance ,
In the process of sequentially passing through the first step (T1) and the second step (T2), the fiber yarn (4) is set with crimps having a crimp ratio (K) of 10% or more. A method for producing a fiber thread (4) exhibiting a helical appearance .

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