WO2018034220A1

WO2018034220A1 - Method for forming and storing round bales

Info

Publication number: WO2018034220A1
Application number: PCT/JP2017/029038
Authority: WO
Inventors: 田中　利明
Original assignee: 松山毛織株式会社
Priority date: 2016-08-18
Filing date: 2017-08-10
Publication date: 2018-02-22
Also published as: JP2018027040A

Abstract

Provided is a method for forming and storing round bales which makes removal of net wrap easy, has little effect on livestock even when residue from the net wrap contaminates the feed, causes little change to the cylindrical shape of the round bales, and exhibits a favorable yield of feed material such as pasture grass. Thus, a method having a compression step for compressing into a cylindrical shape feed material which has been harvested or cut to a prescribed length, a formation step for forming a round bale by wrapping the cylindrical feed material with net wrap after performing the compression step, and a storage step for transporting and storing the round bale after performing the formation step, wherein the net wrap is a knit fabric or net fabric obtained by arranging threads comprising 100% cellulose in a lattice pattern, and the openings in the net wrap lattice are arranged in a manner such that the intervals in the warp direction are within the range of 0.5-5.0cm, and the intervals in the weft direction are within the range of 0.5-5.0cm. The method is characterized in that this net wrap is wound two or more times around the outer-circumferential surface of the cylindrical feed material.

Description

Roll bale molding and storage method

The present invention relates to a method and a method for forming and storing a roll bale for using dry grass as a feed in the livestock industry or using it as a silage feed by lactic acid fermentation.

Traditionally, in the livestock industry, hay and hay that were harvested from summer to autumn were dried and silage that was fermented with lactic acid was formed and stored for use as winter feed for livestock. is doing. When storing hay and straw as dry pasture, first, the dry pasture is rolled into a cylinder with a roll-vader device and compressed. Next, a roll bale is formed by wrapping with a wrapping net so that the cylindrical shape does not collapse, and is transported and stored.

On the other hand, when using grass such as hay and straw as silage, the grass with moisture of 50-60% is first rolled into a cylinder with a roll-vader device and compressed. Next, a roll veil is formed by wrapping with a wrapping net so that the cylindrical shape does not collapse. Further, the roll bale is transported and stored in a tightly sealed manner using a wrap film from above the wrapping net. In this state, the grass is fermented with lactic acid to become silage. This method is called a roll bale wrap silo.

When using hay and silage stored in this way as feed, remove the wrapping net and wrap film, and use a stirrer to make the grass and silage easy to eat.

As described above, the wrapping net is a material that prevents the roll bale from collapsing and has high air permeability and is suitable for drying grass. On the other hand, the wrap film improves the strength of the roll veil and prevents the ingress of air and moisture when used in hay, and the roll bale is sealed for lactic acid fermentation when used in silage. It is the best material to promote. Such a method of forming and storing a roll bale using a wrapping net and a wrapping film is widespread throughout Hokkaido and other countries.

The wrapping machine shown in the following Patent Document 1 or the following Patent Document 2 is an apparatus for automatically and efficiently performing lapping of a roll bale with a wrap film. On the other hand, in wrapping with a wrapping net, a roll-vader device is used.

General-purpose synthetic resins such as polyethylene are used for wrap films and wrap nets used in wrapping machines and roll-vader devices such as Patent Document 1 or Patent Document 2 below. Moreover, the slit yarn which cut the polyethylene film into elongate from the point of economical efficiency etc. is used for the wrapping net, for example. The slit yarn is formed of a high-density polyethylene (HDPE) film or the like that has been stretched to maintain the physical properties (particularly strength) of the wrapping net.

In actual work, when a roll bale is formed by wrapping a lap net or a wrap film on hay that has been compressed into a cylindrical shape, the roll bale device or lapping machine is used to wrap the roll bale. Accordingly, a large tension is applied to the outer periphery of the roll bale wrapped by the wrapping net and the wrapping film, and the roll bale is firmly and firmly fixed.

Thus, even when wrapping with a wrapping net and wrapping film, which is effective for transportation, storage and silage, when using hay and silage of roll bale as feed, Cut and remove the film to unwind the hay and silage. At that time, the wrap film is in a sheet form and is easy to handle and easy to remove. On the other hand, the wrapping net has a problem that it is difficult to remove the wrapping net because a number of strong slit yarns are wound around the roll bale with a large tension.

For example, when a lap net is cut and removed from a roll bale after removing a wrap film, a strong force is required, and accidents in which an operator accidentally hurts the body with a blade occur frequently. There has also been an accident in which a worker who tries to remove lap nets that are left uncut from lap nets when they are stirring hay and silage is caught in the machine.

Also, due to the difficulty in removing the wrapping net, there was a problem that part of the removed wrapping net was mixed into the livestock feed. As described above, when a part of the wrapping net is mixed in the livestock feed, the livestock eats the synthetic resin wrapping net together with the feed, and the livestock becomes sick or dies. there were.

Furthermore, as described above, general-purpose synthetic resins such as polyethylene are used for the removed wrapping net and wrapping film. Therefore, these have to be disposed as industrial waste, and there is a problem that the labor and processing costs are high for livestock farmers.

Therefore, the present inventor has provided a wrapping net shown in the following Patent Document 3 to cope with the above problem. This lap net is easy to remove the lap net when using grass for transportation, storage and silage, and has little influence on livestock even if the wrap net residue is mixed in the feed. Specifically, it is a wrapping net that is made of cellulosic fibers and that can be digested by livestock even when residues of the wrapping net are mixed in the feed.

JP-A-6-70631 Japanese Patent No. 3801618 Japanese Patent No. 5892637

Therefore, as a result of further improvements using a wrapping net made of cellulosic fibers, the present inventor considered the relationship between the use of the wrapping net and the opening of the mesh, in addition to the effect that was initially conceivable. The present inventors have found a remarkable effect that can significantly improve other problems of a conventional wrapping net (hereinafter referred to as “PE wrapping net”) made of slit yarn of polyethylene film.

First, as a problem of the conventional PE wrapping net, there is a cylindrical deformation of the roll bale. The PE wrap net is formed of a stretched high-density polyethylene (HDPE) film or the like, and the strength thereof is strong and the roll veil is wound tightly. However, due to the viscoelastic behavior of the synthetic resin, elongation occurs gradually over time. In the case of silage, carbon dioxide (CO ² ) is generated by lactic acid fermentation inside the roll bale, and the pressure inside the roll bale increases. By these things, the cylinder diameter of a roll veil swells. In particular, the cylindrical diameter of the central part of the cylinder swells more than the cylindrical diameter in the vicinity of the upper and lower surfaces (cross section), and the cylindrical shape is deformed. Until now, the expansion of the cylinder diameter of 4 to 5% was considered inevitable.

In addition, in order to save the storage area, the normal roll bale is stored in three to five layers with the cylindrical axis of the roll bale in the vertical direction, and in some cases more than that. When stored in this manner, there is a problem that the stacking collapses when the cylindrical shape of the roll bale is deformed. Furthermore, the weight of the upper roll bale is added to the lower roll bale, and the cylindrical shape is increasingly deformed. Accordingly, there has been a demand for a wrapping net that does not deform its cylindrical shape even during long-term storage.

Another problem with conventional PE wrap nets is that the yield of lactic acid fermented grass is poor when silage is made. This is because the grass near the outer periphery of the cylinder of the roll bale molded with PE wrapping net and covered with wrap film is extremely wet. The reason for this is not clear, but extremely wet grass cannot be used as feed because it cannot be lactic acid fermented and rots. In particular, in the severe winter season of Hokkaido and Tohoku, extremely wet grass becomes frozen during long-term storage and cannot be used as feed.

Furthermore, another problem with conventional PE wrap nets is the use of fine feed materials in recent roll veils. For example, grasses such as hay and straw are often shredded more finely than conventional cutting lengths so that livestock can be easily digested. In addition to pasture, feed materials obtained by chopping or grinding maize leaves are often mixed. There is also a very finely cut feed material of about 5 mm. When a roll bale is formed with these shredded and extremely shredded feed materials, the feed materials fall off from the openings of the lattice of the wrap net, resulting in poor yield.

This is not limited to PE wrapping nets but is also a problem that occurs with wrapping nets made of cellulosic fibers. However, it is necessary to make the mesh openings of conventional grids finer. However, if the mesh opening is made fine, in the case of the PE wrap net, the problem that the grass near the cylinder outer periphery of the roll bale becomes extremely wet becomes more serious.

Also, there is a problem of price increase due to decrease in production efficiency of lap net and increase in yarn amount. Furthermore, when the thickness and weight of the wrapping net itself increase due to an increase in the yarn amount, the winding length of one wrapping net roll that is distributed as a product (2000 m / 1 winding for a conventional PE wrapping net) is shortened. This is because there is a limit to the diameter of one wrapping net roll that can be used in a conventional roll vader apparatus, and the wrapping net roll is frequently replaced, resulting in a problem in the forming efficiency of the roll bale.

In addition, although the reason is different, when forming the above-mentioned shredded and extremely shredded feed material or overdried feed material into a roll bale with a conventional PE wrapping net, a good roll bale is provided unless the roll bale forming speed is reduced. However, there was a problem that could not be molded.

In view of the above, the present invention addresses the above and facilitates the removal of the wrapping net when using the grass for transportation, storage, and silage. It is an object of the present invention to provide a method and a method for forming and storing a roll bale having a low yield impact on feed material such as pasture with little influence on the shape of the roll bale and less deformation of the cylindrical shape of the roll bale.

In solving the above problems, the present inventor achieved the above object by studying combinations of materials constituting the lap net, lattice openings, the number of windings, the thickness of the thread used, etc., as a result of earnest research. As a result, the present invention has been completed.

That is, according to the description of claim 1, the method for forming and storing the roll bale according to the present invention is as follows.
A compression step of compressing the feed material cut or cut into a predetermined length into a cylindrical shape;
A molding process for wrapping the cylindrical feed material after the compression process with a wrapping net to form a roll bale;
And a storage process for transporting and storing the roll bale after the molding process,
In the molding step,
The wrapping net is a knitted fabric or netting in which yarns made of 100% cellulose are arranged in a lattice pattern,
The opening of the lattice of the wrap net is within a range of 0.5 cm to 5.0 cm, preferably within a range of 1.9 cm to 3.3 cm, and
The distance in the weft direction is in the range of 0.5 cm to 5.0 cm, preferably in the range of 1.2 cm to 2.6 cm,
The wrapping net is overlaid on the outer peripheral surface of the cylindrical feed material for two or more times, preferably three or more times.

Moreover, according to the description of claim 2, the present invention is the roll bale molding and storage method according to claim 1,
Between the molding step and the storage step,
Having a coating step of covering the outer peripheral surface of the roll veil with a wrap film;
In the storage step,
The roll bale after the sealing step is silaged by lactic acid fermentation.

Moreover, according to the description of Claim 3, this invention is the shaping | molding / storage method of the roll bale of

Claim

1 or 2, Comprising:
The wrap net is a warp knitted fabric formed by knitting warps and wefts made of cotton yarn,
Each group of cotton yarns arranged in parallel in the length direction of the knitted fabric forms a plurality of independent chain knittings by loops continuous in the length direction of the knitted fabric,
Each loop of the independent chain knitting is composed of a knitted fabric that is connected to other loops of other independent chain knitting by wefts made of cotton,
Two single yarns of 10th to 50th cotton, or two single yarns of 10th to 50th cotton. It consists of an aligned yarn that is used without being twisted by aligning more than this, and
Two weft yarns, 5th to 15th cotton single yarn, 10th to 50th cotton single yarn, twisted together and twisted, or 10th to 50th cotton single yarn It is characterized by comprising an aligned yarn that is used without being twisted by aligning more than one.

According to the description of claim 4, the present invention is a method for forming and storing a roll bale according to claim 3,
The weft yarn extends from below to above in the length direction of the knitted fabric, and the independent chain knitting is performed at an entanglement point between a needle loop of a loop constituting the independent chain knitting and a sinker loop of a loop immediately above the loop. Inserted into
Furthermore, the other independent chain knitting extends to the other independent chain knitting at the entanglement point of the needle loop of the loop constituting the independent chain knitting and the other independent chain knitting adjacent thereto and the sinker loop of the loop immediately above the loop. By being inserted
The independent chain knitting and another independent chain knitting adjacent thereto are connected to form a knitted fabric.

Moreover, according to the description of claim 5, the present invention is the roll bale molding and storage method according to

claim

1 or 2,
The wrapping net is a woven fabric formed by weaving warp and weft made of cotton yarn,
Two single yarns of 10th to 50th cotton, or two single yarns of 10th to 50th cotton. It consists of an aligned yarn that is used without being twisted by aligning more than this, and
Two weft yarns, 5th to 15th cotton single yarn, 10th to 50th cotton single yarn, twisted together and twisted, or 10th to 50th cotton single yarn It is characterized by comprising an aligned yarn that is used without being twisted by aligning more than one.

Moreover, according to the description of claim 6, the present invention is the roll bale molding and storage method according to

claim

1 or 2,
The wrapping net is a turtle shell net formed by weaving warp and weft made of cotton yarn,
Two single yarns of 5th to 15th cotton single yarn, 10th to 50th cotton single yarns, twisted together and twisted, or 10th to 50th cotton single yarn It is characterized by comprising an aligned yarn that is used without being twisted by aligning more than one.

According to the description of claim 7, the present invention is a method for molding and storing a roll bale according to

claim

1 or 2,
The wrapping net is characterized in that at least a warp yarn is made of a paper slit yarn obtained by slitting paper.

According to the configuration of claim 1, the wrapping net according to the present invention includes a compression process, a molding process, and a storage process. In the compression step, the feed material cut or cut into a predetermined length is compressed into a cylindrical shape. In the subsequent molding step, the roll feed veil is formed by wrapping the cylindrical feed material after the compression step with a wrapping net. In the subsequent storage process, the roll bale after the molding process is transported and stored.

Here, the wrapping net used in the molding process is a knitted fabric or netting in which yarns made of 100% cellulose are arranged in a lattice pattern. As a result, it is easy to remove the wrapping net, and there is little effect on the livestock even if the wrapping net residue is mixed in the feed. Although the reason is not clear, the cylindrical shape of the roll veil is not deformed by using a wrapping net made of 100% cellulose. Furthermore, the reason for this is not clear, but by using a wrapping net made of 100% cellulose, the grass near the outer periphery of the roll veil does not get wet extremely, and it can be frozen and used as feed. Since it never disappears, the yield of feed materials is improved.

In addition, according to the configuration of claim 1, the mesh opening of the lap net is within a range of 0.5 cm to 5.0 cm, preferably 1.9 cm to 3.3 cm, in the longitudinal direction. The distance in the weft direction is in the range of 0.5 cm to 5.0 cm, preferably in the range of 1.2 cm to 2.6 cm. As a result, the feed material does not fall off from the openings of the lap net lattice, and the yield is improved.

In addition, according to the above configuration, such a lap net is overlapped and wound around the outer peripheral surface of the cylindrical feed material two or more times, preferably three or more times. This further overlaps the openings of the wrapped wrapping nets, narrowing the lattice interval and improving the yield without dropping the feed material. Furthermore, the reason for this is not clear, but the combination of the above-described openings and lap winding does not deform the cylindrical shape of the roll veil, and the grass near the outer periphery of the roll veil becomes extremely wet. It won't freeze.

Therefore, according to the structure of the said Claim 1, when using grass as conveyance, storage, and silage, the removal operation | work of a wrapping net is easy, and even when the residue of a wrapping net mixes with a feed, it has an influence on livestock. It is possible to provide a method and a method for forming and storing a roll bale with a small yield and a low yield of a feed material such as pasture with little deformation of the cylindrical shape of the roll bale.

Moreover, according to the structure of the said Claim 2, it has a coating | coated process between a formation process and a storage process. In the covering step, the outer peripheral surface of the roll bale is wound and covered with a wrap film. Thereby, the roll bale is lactic acid fermented in the storage process to be silaged. Therefore, also in the structure of the said Claim 2, while exhibiting the effect similar to the said Claim 1, favorable silage can be manufactured.

Further, according to the configuration of the third aspect, the wrapping net used in the molding step is composed of a warp knitted fabric formed by knitting warps and wefts made of cotton yarn. The warp forms a plurality of independent chain knitting extending in the length direction of the knitted fabric. On the other hand, the weft thread forms a knitted fabric by connecting each loop of independent chain knitting and other loops of other independent chain knitting. Here, the warp yarn used for the knitted fabric is 5th to 15th cotton single yarn, 10th to 50th cotton single yarn, which is twisted together by twisting two or more, or 10th yarn It consists of two or more 50th cotton single yarns that are aligned and used without twisting. On the other hand, weft yarns used for this knitted fabric are 5th to 15th cotton single yarns, 10th to 50th cotton single yarns, twisted together and twisted, or 10th to It consists of two or more 50th cotton single yarns that are aligned and used without being twisted. *

In this way, by adjusting the count of the cotton thread to be used, even if the mesh opening of the wrap net is narrowed, the price increase due to the decrease in the wrap net production efficiency and the increase in the yarn amount can be suppressed. Further, the length of one wrap net roll to be produced is not shortened, and the lap net roll is not frequently replaced when used in a conventional roll-vader apparatus. Therefore, also in the structure of the said Claim 3, the effect similar to the said

Claim

1 or 2 can be exhibited more concretely.

Further, according to the configuration of claim 4, the knitted structure of the wrap net has a needle loop of a loop in which the weft yarn extends from below to above in the length direction of the knitted fabric to form an independent chain knitting, and the loop It is inserted into the independent chain at the intersection of the upper loop with the sinker loop. Further, the weft yarn extends upward and is inserted into the other independent chain knitting at the entanglement point between the needle loop of the loop constituting the other independent chain knitting adjacent to the loop and the sinker loop of the loop immediately above the loop. As a result, the independent chain knitting and the other independent chain knitting adjacent thereto are connected to form the knitted fabric. Therefore, in the structure of the said Claim 4, the effect similar to the said Claim 3 can be exhibited more concretely.

Further, according to the configuration of claim 5, the wrapping net used in the molding step is made of an entangled fabric formed by weaving warp and weft made of cotton yarn. Here, the warp used in the woven fabric is a single yarn of 5th to 15th cotton, a single twisted yarn obtained by aligning and twisting two or more single cotton yarns of 10th to 50th, or 10th It consists of two or more 50th cotton single yarns that are aligned and used without twisting. On the other hand, the wefts used in this entangled fabric are the 5th to 15th cotton single yarns, the 10th to 50th cotton single yarns that are drawn and twisted together, or the 10th to It consists of two or more 50th cotton single yarns that are aligned and used without being twisted.

In this way, by adjusting the count of the cotton thread to be used, even if the mesh opening of the wrap net is narrowed, the price increase due to the decrease in the wrap net production efficiency and the increase in the yarn amount can be suppressed. Further, the length of one wrap net roll to be produced is not shortened, and the lap net roll is not frequently replaced when used in a conventional roll-vader apparatus. Therefore, also in the structure of the said Claim 5, the effect similar to the said

Claim

1 or 2 can be exhibited more concretely.

Further, according to the configuration of claim 6, the wrapping net used in the molding step is composed of a turtle shell network formed by weaving warp and weft made of cotton yarn. Here, the yarn used for the tortoiseshell netting is a single yarn of 5th to 15th cotton, a single twisted yarn in which two or more single yarns of 10th to 50th cotton are aligned and twisted, or 10 It consists of two or more cotton yarns that are numbered to 50th, and are used without twisting.

In this way, by adjusting the count of the cotton thread to be used, even if the mesh opening of the wrap net is narrowed, the price increase due to the decrease in the wrap net production efficiency and the increase in the yarn amount can be suppressed. Further, the length of one wrap net roll to be produced is not shortened, and the lap net roll is not frequently replaced when used in a conventional roll-vader apparatus. Therefore, also in the structure of the said Claim 6, the effect similar to the said

Claim

1 or 2 can be exhibited more concretely.

Further, according to the configuration of claim 7, the wrapping net used in the molding step is made of a paper slit yarn in which at least the warp is slit into paper. Thus, even when the yarn made of 100% cellulose is not a cotton yarn but a lap net is made of yarn made of paper slit yarn, the same effect as in the first or second aspect can be exhibited.

It is the schematic of the warp knitted fabric which shows one Embodiment of the lap net used with the shaping | molding / storage method of the roll bale which concerns on this invention. It is the schematic of the entangled textile fabric (cocoon) which shows other embodiment of the wrapping net used with the shaping | molding / storage method of the roll bale which concerns on this invention. It is the schematic of the entangled fabric (deformation wrinkle) which shows other embodiment of the wrapping net used with the shaping | molding / storage method of the roll bale which concerns on this invention. It is the schematic of the entangled textile fabric (cocoon) which shows other embodiment of the wrapping net used with the shaping | molding / storage method of the roll bale which concerns on this invention. It is the schematic of the entangled fabric (ra) which shows other embodiment of the wrapping net used with the shaping | molding / storage method of the roll bale which concerns on this invention. It is the schematic of the turtle shell network which shows other embodiment of the lap net used with the shaping | molding / storage method of the roll bale which concerns on this invention.

Hereinafter, the present invention will be described in detail. The method for forming and storing a roll bale according to the present invention is used when hay and straw are used as feed, and when silage (livestock feed produced by lactic fermentation of grass etc.) is used as feed. It is done. Here, the roll bale refers to a material obtained by compressing and shaping a grass cut as a livestock feed (rough feed) for storage, and winding it into a cylindrical shape and covering it with a wrapping net or a wrapping film. Many Japanese roll veils have a diameter of about 120 cm to 155 cm, and overseas roll veils have a diameter of 155 cm or more. A roll bale with a diameter of 120 cm has a weight of about 350 kg for hay (about 15% moisture) and about 450 kg for silage (about 50% moisture).

In the present invention, when hay is used as feed, the roll bale molding / storage method includes a compression process, a molding process, and a storage process, and a compression process, a molding process, a covering process, and a storage process. It is divided into the case where it consists of. On the other hand, when silage is used as feed, a roll bale molding / storage method mainly includes a compression process, a molding process, a coating process, and a storage process.

Here, in the compressing process, the feed material such as cut grass is dried and rolls having a moisture content of about 15% (for dry grass) or a moisture content of about 50-60% (for silage) are rolled. It is compressed into a cylindrical shape using a special device called a baler. Next, in the forming step, the feed material compressed into a cylindrical shape is wrapped with a wrap net using the same roll baler apparatus to form a roll bale. Thus, a compression process and a formation process are continuously performed with a roll baler apparatus. The roll baler apparatus used in the present invention may be a conventionally used apparatus, and an existing apparatus can be used in the present invention.

The conventional PE wrap net used in the molding process is knitted from slit yarns formed from a high-density polyethylene (HDPE) film or the like stretched as described above. On the other hand, in the molding process of the present invention, a wrapping net made of a knitted fabric or netting in which yarns made of 100% cellulose are arranged in a lattice shape is used. Details of the lap net will be described later. When dry grass is used as feed, the roll bale wrapped in the wrapping net may be transported and stored.

As described above, in recent roll veils, finer feed materials are often compressed and wrapped in a wrapping net. For example, grass such as hay and straw is often shredded more than conventional cutting lengths. In addition to pasture, feed materials obtained by chopping or grinding maize leaves are often mixed. When roll veils are formed with these feed materials, there is a problem that the feed materials drop off from the openings of the lattices of the lap net and the yield deteriorates. The present invention responds to this point by controlling the opening of the lattice of the lap net, which will be described later.

On the other hand, in the covering step, the outer peripheral surface of the roll bale wrapped with a wrapping net is further wound with a wrapping film and covered. By covering the roll veil with a wrap film, it is possible to control the intrusion of air into the roll bale, and also to control the intrusion of rain wind or the release of moisture inside the roll bale. it can. When dry grass is used as feed, a roll bale covered with this wrap film may be transported and stored. On the other hand, when silage is used as feed, fermentation by lactic acid bacteria progresses inside the roll bale in the subsequent storage process, resulting in silage with high nutritional value.

専用 A special device called a lapping machine is used for this coating process. The wrapping machine used in the present invention may be a conventionally used wrapping machine, and an existing apparatus can be used in the present invention. Moreover, the film | membranes, such as polyethylene conventionally used also in this invention, can be used for the wrap film to be used.

In the storage process, the roll bale after the molding process or coating process is transported and stored. The roll bale is transported by a tractor or the like so as not to damage the coated wrap film. In addition, there are cases where roll balers are left on the ranch for storage, but generally they are stored in three to five stacks with the cylindrical axis of the roll bale in the vertical direction, and in some cases more than that. The When stored in this manner, there was a problem that the cylindrical shape of the roll bale was deformed as described above and the stacking was broken. Furthermore, the weight of the upper roll bale is added to the lower roll bale, and the cylindrical shape is increasingly deformed. The present invention can cope with this point by using a knitted fabric made of 100% cellulose or a wrapping net made of a net, and this point will be described later.

In addition, during the storage of roll veils molded with a conventional PE wrap net and covered with polyethylene wrap film, the grass near the cylinder outer periphery of the roll veils is extremely wet and cannot be lactic acid fermented and rotted and cannot be used. was there. Also, in the severe winter season in Hokkaido and Tohoku, there was a problem that extremely wet grass was frozen and that part could not be used. Due to these problems, the conventional roll bale has a low silage yield. The present invention can cope with this point by using a knitted fabric made of 100% cellulose or a wrapping net made of a net, and this point will be described later.

Next, the lap net used in the present invention will be described. In the present invention, the wrapping net is made of a knitted fabric or netting in which yarns made of 100% cellulose are arranged in a lattice pattern. Here, the material constituting the wrapping net is a thread made of 100% cellulose. Examples of the yarn made of 100% cellulose include yarn made of natural cellulose such as cotton and hemp, yarn made of regenerated cellulose such as rayon, cupra, polynosic or tencel, and paper slit yarn obtained by slitting paper finely. . Examples of hemp include flax (linen), hemp (ramie), hemp (hemp), and jute.

In this way, when the material constituting the wrapping net is 100% cellulose yarn, when the wrapping net is removed from the roll veil, a part of the wrapping net becomes a residue and enters hay and silage. In addition, there is little impact on livestock. That is, when using a roll veil as a livestock feed, even if the livestock eats part of a wrapping net made of 100% cellulose together with the feed, it is the same component as hay and straw, It is digested in the body and does not affect livestock. Therefore, without removing the wrapping net from the roll bale, the entire wrapping net may be pulverized simultaneously with hay and silage and mixed with livestock feed.

Moreover, since the material which comprises a wrapping net is the thread | yarn which consists of a cellulose 100%, the wrapping net removed from the roll bale can be buried in the soil as it is and discarded. Alternatively, even when the used wrapping net is disposed of by incineration, it is carbon neutral with respect to the conventional synthetic resin fiber and does not newly emit CO ₂ . Therefore, it is possible to reduce the labor and processing cost when discarding the used wrapping net, and the environmental impact.

Also, the reason is not clear, but because the yarn is made of 100% cellulose, the cylindrical shape of the roll veil is not deformed during storage, and the roll veil is stacked in three to five stages. Even when stored in a higher stack, the cylindrical shape of the roll veil is not deformed and the stack does not collapse. Furthermore, the reason for this is not clear, but because the yarn is made of 100% cellulose, the grass near the outer circumference of the roll veil does not become extremely wet, and it becomes frozen and cannot be used as feed. Therefore, the yield of feed materials is improved.

In addition, the knitted fabric or netting in which the yarns are arranged in a lattice form means a net structure having a lattice opening. Such a knitted fabric or net is not limited to a knitted structure, a woven structure, or a net structure as long as there is an opening of a lattice. Etc. are preferably employed.

Here, the warp knitted fabric is a method of knitting in which warp groups arranged in parallel in the length direction of the knitted fabric form a stitch (loop) continuously in the length direction of the knitted fabric. It is characterized by high strength in the vertical direction. As the knitting organization of warp knitted fabrics, there are various knitting organizations based on basic organization such as single denby, single cord, single atlas, chain stitch (chain knitting).

In the present invention, it is more preferable to use chain stitches in the warp knitted fabric (see FIG. 1). The knitted structure is a knitted fabric in which a chain stitch (chain knitting) is constituted by warps made of 100% cellulose, and a weft made of 100% cellulose is inserted into the chain stitch (chain knitting). In knitted structures other than chain stitches, the chain stitches are connected by warps, and in the lap net removal work after use, the connection part may not be cut and the removal work may be difficult. However, when the lap net is finely pulverized with feed and given to livestock, any organization structure may be used.

Also, examples of warp knitting machines include Raschel knitting machines and tricot knitting machines. In the present invention, any knitting machine may be used, but it is generally preferable to use a Raschel knitting machine in terms of productivity and the like.

Next, the entangled fabric is a fabric in which two or more warps of ground yarn and twisted yarn (mojiito) are intertwined with weft yarns. Et al.) In each of the weft yarns, the adjacent warp yarns are entangled as a set (see FIGS. 2 and 3). After forming an odd (3, 5, 7) level plain weave or twill weave, two adjacent warps are entangled and repeated (see FIG. 4). Luo et al. Have three or more odd warps entangled with each other (see FIG. 5). In the present invention, it is more preferable to employ ridges in the woven fabric (see FIGS. 2 and 3). The cocoon can be produced by a high-speed automatic loom, which has a simple woven structure among the woven fabrics.

Next, the turtle shell net is a mesh with hexagonal turtle shells in which adjacent warps are intertwined alternately, and is excellent in productivity (see FIG. 6).

Next, the mesh opening of the lap net will be described. In the present invention, in order to improve the yield of the feed material finely shredded as described above, it is preferable to have a predetermined opening. Specifically, the mesh opening is within a range of 0.5 cm to 5.0 cm, preferably within a range of 1.9 cm to 3.3 cm, more preferably within a range of 2.0 cm to 3.0 cm. To do. Further, the distance in the weft direction is in the range of 0.5 cm to 5.0 cm, preferably in the range of 1.2 cm to 2.6 cm, and more preferably in the range of 1.5 cm to 2.2 cm.

Furthermore, in the coating step according to the present invention, the number of times the lap net is wound around the cylindrical circumference of the roll bale is 2 or more, preferably 3 or more, more preferably 2.5 to 4 laps. . When the wrapping net is wound around the cylindrical circumference of the roll bale, the lap net overlaps and the mesh opening becomes finer, the feed material falling off from the roll bale is reduced, and the roll bale yield is improved.

Also, by combining the number of openings and the number of lap windings as described above, the tightening pressure of the roll bale by the lap net becomes appropriate, and the roll bale shape is stabilized and the deformation of the cylindrical shape is suppressed. Further, even when roll balers are stored in 3 to 5 stacks, or in some cases, more than that, the cylindrical shape of the roll veils is not deformed and the stack is not collapsed. Furthermore, the reason is not clear, but by combining the number of openings and the number of times of lap winding as described above, the grass near the outer periphery of the cylinder of the roll veil does not get wet extremely, and is frozen and used as feed The yield of feed material is improved because it is not impossible. In addition, these effects are the effects which were not recognized by the conventional PE wrapping net, and can be said to be a remarkable effect by using the wrapping net which consists of 100% of cellulose.

Next, the type and thickness of the thread used for the wrapping net will be described. In the present invention, when the wrapping net is a warp knitted fabric or a woven fabric, both the warp and the weft are preferably cotton yarn. The cotton yarn is obtained by spinning short cotton fibers and does not gradually grow over time due to viscoelastic behavior compared to slit yarn made of polyethylene film used in a conventional PE wrapping net. Further, the cotton yarn is hydrophilic and absorbs moisture from the roll bale to expand and thicken, increasing the tightening pressure of the roll bale. Therefore, in the wrapping net made of cotton yarn, the shape of the roll bale is stabilized and the cylindrical deformation is suppressed, and the stacking does not collapse compared to the PE wrapping net.

Here, when the cotton yarn is used, the thickness of the warp is 5th to 15th, preferably 7th to 13th cotton single yarn, 10th to 40th, preferably 15th to 30th cotton. Pull that uses two or more single yarns that are aligned and twisted together, or two or more single yarns of 10th to 40th, preferably 15th to 30th cotton, and are used without being twisted. It should be made of aligned yarn. Moreover, although the twist coefficient of cotton yarn, the presence or absence of additional twist, the presence or absence of twist set, etc. are not particularly limited, by adjusting these, strong strength and low cost can be realized with thinner yarn. If the warp is such a thickness, the tightening pressure of the roll bale becomes appropriate and the strength is not weakly cut or stretched due to the relationship with the warp density of the lap net due to the mesh openings.

In addition, if the warp is such a thickness, the thickness and weight of the roll bale are increased, and the length of the roll of the wrapping net roll that is distributed as a product (2000 m / 1 roll for the conventional PE wrapping net) is shortened. There is nothing. Thereby, also in the present invention, the conventional roll-vader apparatus can be used, and the production rolls are frequently exchanged, so that the forming efficiency of the roll veil is not lowered than before.

On the other hand, when the cotton yarn is used, the thickness of the weft is 5th to 20th, preferably 10th to 15th, single cotton, 10th to 50th, and preferably 20th to 40th. Two or more yarns that are twisted together and twisted, or two or more single yarns of 10th to 50th, preferably 20th to 40th cotton are aligned and used without being twisted. It should be made of yarn. In addition, you may make it use the double yarn or the draw yarn which has the same intensity | strength instead of a single yarn. Moreover, although the twist coefficient of cotton yarn, the presence or absence of additional twist, the presence or absence of twist set, etc. are not particularly limited, by adjusting these, strong strength and low cost can be realized with thinner yarn. If the weft is such a thickness, the connection between the warps can be stably maintained, and the cylindrical shape of the roll veil can be maintained. Moreover, it does not become excessively thick, and work efficiency is good when removing the wrapping net from the roll bale.

Further, if the weft is such a thickness, the thickness and weight of the roll bale are increased, and the length of one roll of wrapping net roll that is distributed as a product (2000 m / 1 roll for a conventional PE wrapping net) is shortened. There is nothing. Thereby, also in the present invention, the conventional roll-vader apparatus can be used, and the production rolls are frequently exchanged, so that the forming efficiency of the roll veil is not lowered than before.

On the other hand, when the wrap net is a turtle net, it is preferable that the yarn (in this case, only warp is used) is a cotton yarn. The reason for using cotton yarn is the same as in the case of the above-described warp knitted fabric or entangled fabric. Here, when the cotton yarn is used, the yarn thickness is 5 to 15th, preferably 7 to 13th cotton single yarn, 10th to 40th, preferably 15th to 30th cotton. Pull that uses two or more single yarns that are aligned and twisted together, or two or more single yarns of 10th to 40th, preferably 15th to 30th cotton, and are used without being twisted. It should be made of aligned yarn. If the yarn has such a thickness, the tightening pressure of the roll bale becomes appropriate due to the relationship with the warp density of the wrapping net due to the lattice opening described above, and the strength is not weakly cut or stretched.

Next, the method for forming and storing the roll bale according to the present invention will be specifically described by way of examples. In addition, although a following example demonstrates warp knitted fabric (chain stitch) as a structure | tissue of a wrap net, this invention is not limited only to this Example.

First, a lap net to be used in this example was prepared. In this example, cotton 20th-hand double yarn (20/2) was used as a warp made of 100% cellulose constituting the wrapping net. The yarn strength (tensile strength) of this cotton yarn was 8.4 N / 1 (860 gf / 1). On the other hand, as a weft made of 100% cellulose constituting the wrapping net, a 10th cotton single yarn (10 /-) was used. The yarn strength (tensile strength) of this cotton yarn was 8.3 N / 1 (850 gf / 1). The measurement of tensile strength and elongation (tensile strength and elongation) of the yarn was based on JIS-L1013.

Next, a lap net was knitted using these cotton warps and wefts. In this example, a raschel knitting machine was used for knitting the lap net, and the lap net having the knitting structure shown in FIG. 1 was knitted.

Here, the organization of the lap net according to the present invention will be specifically described. FIG. 1 is a schematic view showing a knitted structure (warp knitted fabric) of a wrap net used in this embodiment. In FIG. 1, a wrapping net 10 is composed of a warp 1 and a weft 2, and the warp 1 forms a loop 20 that forms the foundation of a knitted fabric.

Fig. 1 shows a knitted fabric made of chain stitches of 4 wales (vertical ridges) x 8 courses (horizontal ridges). Each wale 30 and each course 40 are further knitted in the vertical and horizontal directions to form a wide and long knitted fabric. In FIG. 1, four warps 1 arranged in parallel in the warp direction form a continuous loop 20 while extending upward in the drawing, and constitute a wale 30 made of independent chain knitting.

In this state, the wales 30 of each independent chain knitting are not connected to each other and do not constitute a knitted fabric. Accordingly, the wrapping net is knitted so that the warp group 1 forms the wal 30 of each independent chain knitting, and the weft 2 connects each loop 20 of the wale 30 to another loop 20 of the other wales.

In FIG. 1, a weft thread 2 extends upward in the drawing, and first, an intertwined point of two loops of a wale (a needle loop protruding above one loop and a sinker protruding below the loop immediately above it) At the point of connection with the loop), it extends upward through these loops (through the dive). Thereafter, the weft yarn 2 further extends upward through the loops (submerges) at the entanglement point between two consecutive loops of other adjacent wales. Thereafter, the weft 2 extends further upward (through the dive) at the entanglement point of two adjacent loops of the adjacent original wales, and then extends in the same manner to connect the wales. .

The lap net knitted in this example was manufactured as a single wrap net roll with a total width of 120 cm and a length of 2000 m. The opening of the lattice of the lap net was 2.5 cm in the warp direction and 1.9 cm in the weft direction. Using the wrapping net thus prepared and the existing polyethylene wrapping film, in this example, the grass (moisture 50%) cut from the ranch in the Hokkaido region was formed into a roll bale and silaged. .

First, in the compression step and the forming step, a roll bale was formed by winding a lap net three times around a cylindrical outer periphery of pasture compressed into a cylindrical shape using a conventionally used roll bader device. As a result, it was able to withstand the high device tension similar to the conventional PE wrapping net. Next, in the coating process, a conventional lapping machine was used, and the entire outer periphery of the roll bale was coated with a wrap film. The formed roll bale had a length of 120 cm and a diameter of 155 cm. Further, the surface of the molded roll veil was sufficiently hardened and was practically satisfactory. In addition, the work in the roll-vader apparatus and the wrapping machine was not different from the case of the PE wrap net used conventionally in terms of workability.

Next, the roll bale was gripped with a tractor's glove and transported, and stored in a storage place with the cylindrical axis of the roll bale vertically stacked in four stages. The storage period was 6 months including the severe winter season. As a result, the shape of the roll bale during storage was stable, the cylindrical shape was not deformed, and the stacking was not broken. For comparison, in a roll bale formed with a PE wrap net, the diameter of the central portion of the cylindrical shape swelled by about 5%, and the cylindrical shape was deformed.

The wrap film and wrap net were removed from the roll bale 3 months later (severe winter season), which is the intermediate point of storage for 6 months for silage, and the state of the internal grass was confirmed. As a result, the lactic acid fermentation was progressing as a whole in the same manner as in the central part, without the grass near the outer periphery of the cylinder of the roll bale being extremely wet. On the other hand, in the roll bale formed with the comparative PE wrapping net, lactic acid fermentation progressed at the center of the roll bale, but the grass near the outer periphery of the cylinder was extremely wet and frozen and lactic acid fermentation was progressing. There wasn't.

Furthermore, the wrap film and wrap net were removed from the roll bale after 6 months storage after silageization was completed, and the state of the internal grass was confirmed. As a result, not only the central part of the roll bale but also the grass near the outer periphery of the cylinder was satisfactorily subjected to lactic acid fermentation, and a good silage was completed. Therefore, the yield of silageization was almost 100%, which was good. On the other hand, in the roll bale formed with the comparative PE wrap net, lactic acid fermentation was completed at the center of the roll bale, but the grass near the outer periphery of the cylinder deteriorated by wetting, freezing and thawing, and used as feed It was not possible. Therefore, the yield of the roll veil formed with the comparative PE wrapping net was about 80%, which was not good.

As described above, according to the present invention, it is easy to remove the wrapping net, and even when the wrapping net is mixed with the feed, there is little influence on the livestock, and the cylindrical shape of the roll bale is small. In addition, it is possible to provide a method for forming and storing a roll veil with a high yield of feed materials such as grass.

In implementing the present invention, not only the above-described embodiments but also the following various modifications may be mentioned.
(1) In the above embodiment, a warp knitted fabric (chain stitch) is adopted as the wrap net structure, but the present invention is not limited to this. A net or the like may be used.
(2) In the above embodiment, the 20th-twisted cotton yarn (20/2) was used as the warp made of 100% cellulose constituting the wrapping net. However, the present invention is not limited to this. You may make it use the thread | yarn, the single count cotton of thick count, or the alignment yarn which aligned the single yarn of cotton. Or you may make it use the thread | yarn which consists of cellulosic fibers other than cotton thread, or a paper slit yarn.
(3) In the above embodiment, the 10th single yarn of cotton (10 /-) was used as the weft made of 100% cellulose constituting the wrapping net. However, the present invention is not limited to this. You may make it use the yarn, the double yarn of the cotton of middle count to the fine count, or the alignment yarn which aligned the single yarn of cotton. Or you may make it use the thread | yarn which consists of cellulosic fibers other than cotton thread, or a paper slit yarn.
(4) In the above embodiment, the mesh opening of the lap net is 2.5 cm in the warp direction and 1.9 cm in the weft direction, but is not limited to this. As long as the yield is not impaired, different openings may be used in consideration of the strength, thickness, basis weight, yarn amount, etc. of the wrapping net.
(5) In the above embodiment, the silage was made by covering with a wrap film from above the wrapping net of the roll bale. However, the present invention is not limited to this, and the roll bale is stored without being covered with the wrap film. You may make it do.
(6) In the above-described embodiment, the wrapping net is removed from the roll bale. However, the present invention is not limited to this, and the wrapping net wound around the roll bale is finely cut including warps and wefts. You may make it make livestock eat as a feed with silage.

1 ... warp, 2 ... weft, 10 ... knitted fabric, 20 ... loop, 30 ... wale, 40 ... course,
51, 52, 53, 54 ... Weave, 55 ... Netting.

Claims

A compression step of compressing the feed material cut or cut into a predetermined length into a cylindrical shape;
A molding process for wrapping the cylindrical feed material after the compression process with a wrapping net to form a roll bale;
And a storage process for transporting and storing the roll bale after the molding process,
In the molding step,
The wrapping net is a knitted fabric or netting in which yarns made of 100% cellulose are arranged in a lattice pattern,
The opening of the lattice of the wrap net is within a range of 0.5 cm to 5.0 cm, preferably within a range of 1.9 cm to 3.3 cm, and
The distance in the weft direction is in the range of 0.5 cm to 5.0 cm, preferably in the range of 1.2 cm to 2.6 cm,
A method for forming and storing a roll bale, wherein the wrapping net is wound on the outer peripheral surface of the cylindrical feed material for two or more times, preferably three or more times.
Between the molding step and the storage step,
Having a coating step of covering the outer peripheral surface of the roll veil with a wrap film;
In the storage step,
The roll bale molding and storage method according to claim 1, wherein the roll bale after the sealing step is silaged by lactic acid fermentation.
The wrap net is a warp knitted fabric formed by knitting warps and wefts made of cotton yarn,
Each group of cotton yarns arranged in parallel in the length direction of the knitted fabric forms a plurality of independent chain knittings by loops continuous in the length direction of the knitted fabric,
Each loop of the independent chain knitting is composed of a knitted fabric that is connected to other loops of other independent chain knitting by wefts made of cotton,
Two single yarns of 10th to 50th cotton, or two single yarns of 10th to 50th cotton. It consists of an aligned yarn that is used without being twisted by aligning more than this, and
Two weft yarns, 5th to 15th cotton single yarn, 10th to 50th cotton single yarn, twisted together and twisted, or 10th to 50th cotton single yarn 3. The method for forming and storing a roll bale according to claim 1 or 2, wherein the roll bale is made of an aligned yarn that is used without being twisted.
The weft yarn extends from below to above in the length direction of the knitted fabric, and the independent chain knitting is performed at an entanglement point between a needle loop of a loop constituting the independent chain knitting and a sinker loop of a loop immediately above the loop. Inserted into
Furthermore, the other independent chain knitting extends to the other independent chain knitting at the entanglement point of the needle loop of the loop constituting the independent chain knitting and the other independent chain knitting adjacent thereto and the sinker loop of the loop immediately above the loop. By being inserted
The method for forming and storing a roll bale according to claim 3, wherein the independent chain knitting and another independent chain knitting adjacent thereto are connected to form a knitted fabric.
The wrapping net is a woven fabric formed by weaving warp and weft made of cotton yarn,
Two single yarns of 10th to 50th cotton, or two single yarns of 10th to 50th cotton. It consists of an aligned yarn that is used without being twisted by aligning more than this, and
Two weft yarns, 5th to 15th cotton single yarn, 10th to 50th cotton single yarn, twisted together and twisted, or 10th to 50th cotton single yarn 3. The method for forming and storing a roll bale according to claim 1 or 2, wherein the roll bale is made of an aligned yarn that is used without being twisted.
The wrapping net is a turtle shell net formed by weaving warp and weft made of cotton yarn,
Two single yarns of 5th to 15th cotton single yarn, 10th to 50th cotton single yarns, twisted together and twisted, or 10th to 50th cotton single yarn 3. The method for forming and storing a roll bale according to claim 1 or 2, wherein the roll bale is made of an aligned yarn that is used without being twisted.
The method for forming and storing a roll bale according to claim 1 or 2, wherein the wrapping net comprises at least a paper slit yarn in which warp is formed by slitting paper.