KR101560133B1

KR101560133B1 - Manufacturing method of agricultural padding with a far-infrared emission

Info

Publication number: KR101560133B1
Application number: KR1020150094311A
Authority: KR
Inventors: 김학년
Original assignee: 주식회사 다윈
Priority date: 2015-07-01
Filing date: 2015-07-01
Publication date: 2015-10-14

Abstract

The present invention relates to a method for producing agricultural padding having a far-infrared ray emitting function, more particularly, to a method for manufacturing agricultural padding having a far-infrared ray emitting function, An insulating layer made of excellent elastic padding cotton is disposed to improve the warmth and recoverability and an upper layer or a lower layer containing far infrared rays are arranged above and below the insulating layer, To a padding manufacturing method.

Description

Technical Field [0001] The present invention relates to a manufacturing method of agricultural padding having a far-infrared ray emitting function,

Currently, the development of agricultural technology and the increase of demand for various vegetable crops have led to the cultivation of crops using vinyl houses. In order to ensure smooth growth of the crops grown in vinyl houses, it is necessary to maintain the internal temperature of the plastic houses appropriately It is important.

A greenhouse having such a structure is usually equipped with a system capable of artificially cultivating the cultivation environment of the crop regardless of the season, and then maintaining and controlling the proper temperature necessary for growing the crop.

In other words, vinyl house is a simple facility structure for agricultural use that blocks cold outside air or snow, rain, wind, and is used for growing hot-picked fruits and vegetables in winter. It is used for early shipment of vegetables produced by the season or planting of fruit trees, flower cultivation, It is widely used as a drying facility for agricultural products.

Therefore, when the greenhouse is used as a crop cultivation facility, it is necessary to maintain the temperature which is the most important important factor of the cultivation environment of the crops.

In other words, it is very important to protect crops from outside cold temperatures in order to grow crops in greenhouses, and to prevent internal warm air controlled to the proper temperature for growing crops from being lost to the outside.

By using a transparent vinyl film in the vinyl house, the temperature of the inside increases due to the influence of sunlight during the daytime, and the cold air outside is prevented from flowing into the inside at night, thereby preventing the internal temperature from lowering.

However, in spite of the fact that the conventional double structure vinyl film is used to enhance the effect of warming, in the winter when the temperature falls below minus, the internal temperature of the greenhouse can not be maintained at a proper temperature for cultivating the crop, And at the same time, the entire outside of the greenhouse is covered with a heat-insulating cover manufactured by stacking several layers of styrofoam, non-woven fabric and insulating material which are cost-effective and sewed at regular intervals, As much as possible.

As a part of this effort, Korean Patent Registration No. 10-0956948 discloses a material preparing process (S1) comprising a short fiber of polyester and a low denier having a thickness of 4 denier or less and a separate outer sheath; A step (S2) of producing a padding pad in which the staple fibers are composed of padding wool in a sheet form; A heat treatment step (S3) of forming a padding-woven nonwoven fabric fixed in a sheet form by heat-treating the padding so formed; (S4) for constructing an agricultural thermal insulation nonwoven fabric cover in which the padding nonwoven fabric and the sheath are integrated by wrapping the sheath provided in the material preparation step (S1) A method of making a nonwoven cover is disclosed.

On the other hand, far-infrared rays are well known to have a beneficial effect on the human body and have an excellent effect on health treatment. However, the far-infrared ray is not utilized in agricultural fields where plants are grown.

Therefore, it is necessary to make efforts to promote the plant growth and enhance the far-infrared emission efficiency by emitting the far-infrared rays to the thermal insulation cover for agricultural use.

1. Korean Registered Patent No. 10-0956948 (2010.05.12.) 2. Korean Patent No. 10-1268928 (Feb. 3. Korean Public Utility Model No. 20-2010-0006468 (June 25, 2010) 4. Korean Patent No. 10-0606468 (2006.08.01.)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a method and a device for improving the storage stability of agricultural products by the far- And a method for producing the agricultural padding.

It is another object of the present invention to provide a padding material which is excellent in elasticity and which has excellent heat retention and restoration property by disposing an upper layer or a lower layer containing far infrared rays above and below the thermal insulation layer, And a method of manufacturing the same.

According to an aspect of the present invention, there is provided an agricultural padding having a far-infrared ray emitting function, the agricultural padding having a far-infrared ray emitting function, An upper layer or a lower layer which is disposed at any one of an upper side and a lower side of the insulating layer and contains mineral powder so as to emit far-infrared rays, wherein the upper layer and the lower layer each comprise 60 to 65 parts by weight of the first fiber, Wherein the second fiber is prepared by mixing 1 to 5 parts by weight of the mineral powder based on 100 parts by weight of the resin to form a fiber, Infrared rays generated by the mineral powder are radiated directly onto the surface of the plant or crop by arranging the upper layer or the lower layer on at least the surface facing the plant.

The insulating layer and the upper layer or lower layer of the agricultural padding having the far-infrared ray emitting function according to the present invention are bonded to each other through a binder containing acrylic resin and water.

Further, the first fiber of the agricultural padding having the far-infrared ray emitting function according to the present invention is made of synthetic fibers capable of heat fusion, and the insulating layer and the upper layer or the lower layer are bonded by heat fusion with the first fiber .

And a coating layer formed on each surface of the upper or lower layer of the agricultural padding having the far-infrared ray emitting function according to the present invention,

Wherein the coating layer comprises mineral powders 1 to 5 based on 100 parts by weight of a polyacrylate ester.

In addition, the method for producing agricultural padding having a far-infrared ray emitting function according to the present invention includes: a step S1 of providing a first fiber and a second fiber containing a mineral powder; (S2) mixing 60 to 65 parts by weight of the first fibers and 35 to 40 parts by weight of the second fibers, and opening and mixing the fibers; A step S3 of forming the sheet-like raw surface by carding the fibers of the open and mixed S2 steps; A step S4 of stacking a plurality of the original surfaces; A step S5 of spraying a binder onto the surface of the laminate to perform primary coating and then primary drying at a temperature of 125 to 135 캜; A step S6 of re-spraying the binder onto the primary dried layered surface to perform secondary coating and then secondary drying at a temperature of 150 to 160 캜; And heating the secondarily dried laminated raw cotton with a roller heated at 240 to 260 DEG C. The second fiber is produced by dispersing 1 to 5 parts by weight of the mineral powder in 100 parts by weight of the resin, And is formed into fibers by spinning.

In the method for producing agricultural padding having a far-infrared ray emitting function according to the present invention, the mineral powder is characterized in that at least one of the elvan stone, germanium and loess is ground to a particle size of 1 to 50 μm.

In addition, in the method of manufacturing agricultural padding having a far-infrared ray emitting function according to the present invention, the step S4 may further include inserting a padding pad between the facings, and laminating the facets so that the facets are arranged above and below the padding pad.

In the method of manufacturing agricultural padding having a far-infrared ray emitting function according to the present invention, the binder is a water-dispersible polymer material obtained by polymerizing an acrylic monomer and has a water content of 55 to 65% based on the total weight of the binder, In the drying process, the water contained in the binder is evaporated, and adhesion is performed.

According to the agricultural padding having the far-infrared ray emitting function according to the present invention having the above-described structure and the method for producing the same, the mineral powder is uniformly mixed as a whole to improve the storage stability of agricultural products and promote the development of crops by the far-infrared radiation effect have.

In addition, according to the agricultural padding having the far-infrared ray emitting function and the method of manufacturing the same according to the present invention, it is possible to improve the warming and recovering property by arranging the insulating layer made of excellent padding- By arranging the upper layer or the lower layer containing the phosphor, the far-infrared radiation efficiency can be increased.

1 is a process diagram showing each step of a method for producing agricultural padding having a far-infrared ray emitting function according to the present invention.
2 is a sectional view showing a first embodiment of an agricultural padding having a far-infrared ray emitting function according to the present invention.
3 is a cross-sectional view showing a second embodiment of agricultural padding having a far-infrared ray emitting function according to the present invention.
4 is a cross-sectional view showing a third embodiment of an agricultural padding having a far-infrared ray emitting function according to the present invention.
5 is a test report showing the result of far infrared ray measurement test of the present invention.

Hereinafter, preferred embodiments of the present invention will be described more specifically with reference to the accompanying drawings.

In the description of the present invention, the same or similar elements are denoted by the same or similar reference numerals, and a detailed description thereof will be omitted.

1 is a process diagram showing each step of a method for producing agricultural padding having a far-infrared ray emitting function according to the present invention.

1, a method for producing agricultural padding having a far-infrared ray emitting function according to the present invention comprises: a step S1 of providing a first fiber, a second fiber containing a mineral powder, 60 to 65 parts by weight of the first fiber, A step S 2 of mixing 35 to 40 parts by weight of the second fibers and opening and mixing the fibers, a step S3 of forming a sheet-like raw cotton by carding the fibers of the open and mixed S2 steps, S4 A step S5 of spraying a binder made of acrylic resin and water on the surface of the laminated layer to form a primary coating and then a primary drying at a temperature of 125 to 135 DEG C; S6 step of re-spraying the binder made of water to perform secondary coating and then secondary drying at a temperature of 150 to 160 DEG C, step S7 of heating the secondarily dried laminated raw paper with a roller heated at 240 to 260 DEG C . &Lt; / RTI >

In the step S1, the first fiber and the second fiber may be exemplified by polyester short fibers or long fibers, but there is no particular limitation on the material thereof, and the second fiber may contain a mineral powder Which is different from the first fiber.

The mineral powder contained in the second fiber is not particularly limited as far as it is a material excellent in the far-infrared radiation efficiency. However, it can be exemplified that the elvan stone, germanium and loess powder are ground to a particle size of 1 to 50 탆.

Meanwhile, the second fiber may further include an antimicrobial material in addition to the mineral powder. The antimicrobial material may be a metal oxide such as nano silver, TiO ₂ , and WO ₃ .

The method for producing the second fiber may include mixing 1 to 10 parts by weight of the mineral powder with 100 parts by weight of the polyester resin and then spinning the mixture by spinning according to a conventional spinning process. And dispersed in a dispersing agent such as a dispersant.

If the amount of the mineral powder is less than 1 part by weight based on 100 parts by weight of the polyester resin, it is difficult to expect a far-infrared ray radiation effect. If the amount of the mineral powder exceeds 10 parts by weight, dispersion thereof is difficult and troubles such as nozzle clogging may occur in the fiber spinning process. As shown in FIG.

In the step S2, the first fiber and the second fiber are mixed to form a primary face and a mixed face, and the first and second fibers are preferably 60 to 65 parts by weight and 35 to 40 parts by weight, respectively However, when the second fiber is more than 40 parts by weight, physical properties and durability are deteriorated due to an increase in mineral powder content. When the second fiber is less than 35 parts by weight, the amount of far-infrared rays decreases.

In summary, as a condition for obtaining a sufficient amount of far-infrared radiation without causing a drastic decrease in physical properties or durability, the weight ratio of the polyester resin to the mineral powder in step S1 and the weight ratio of the first fiber to the second fiber Is most preferable.

In step S2, the first fiber and the second fiber are precisely weighed to form a first open face and a mixed face at about 40%, and a second face and a mixed face are formed through a cylinder equipped with a wire, The air is blown by the blower, and at the same time, the efficiency of opening and mixing is amplified. Then, it is put into the hopper, binding the raw face through rolling and friction, and performing the compaction process through vibration (vibration).

In step S 3, the fibers having been subjected to the step S 2 are supplied to the card machine to form open faces, mixed faces, stretches, and knits to form a face, and then transferred to the molding machine of step S 4. In step S4, a predetermined number of original surfaces are laminated, and then the laminated original surface is pressed and bonded by a pair of rollers.

In the steps S5 and S6, first coating, first drying, second coating, and second drying are performed.

The primary coating and the secondary coating can be exemplified by spraying a water-dispersible polymer material obtained by polymerizing an acrylic monomer, for example, a polyacrylic acid ester. The moisture content of the water-dispersed polyacrylic acid ester Is 55 to 65% based on the total weight of the binder.

And each coating is formed by spraying the binder onto the surface of the raw cotton at a flow rate of 5,600 g / min at a pressure of 3.8 kgf / cm < 2 >.

The primary drying and the secondary drying are carried out by evaporating the moisture of the binder so that the primary drying is carried out at a temperature of 125 to 135 ° C and the secondary drying is carried out at a temperature of 150 to 160 ° C Do. The drying time can be adjusted according to the weight, for example 65 seconds for 2 to 4 oz of cotton, 75 seconds for 5 to 7 oz, 105 seconds for 8 to 10 oz, 140 seconds for 11 to 13 oz, And in the case of 14 to 15 oz, drying is performed for 165 seconds, respectively. And the secondary drying is performed at a temperature of 150 ° C and 160 ° C, respectively.

Thus, by increasing the temperature stepwise in the primary and secondary drying processes and limiting the drying temperature to the above-mentioned temperature range, defects such as yellowing and dropout of the binder can be prevented.

In step S7, the laminated raw paper having been subjected to the second drying is passed through a roller heated at 240 to 260 DEG C to thermocompression, thereby improving the flatness of the surface of the raw cotton and improving the bonding force, thereby completing the production of agricultural padding.

Thereafter, the product is cut and packed according to the standard.

Hereinafter, an agricultural padding having a far-infrared ray emitting function according to the present invention will be described.

2 is a sectional view showing a first embodiment of an agricultural padding having a far-infrared ray emitting function according to the present invention.

2, the agricultural padding 100 having the far-infrared ray emitting function according to the present embodiment is laminated by a plurality of padding-wool-shaped raw surfaces 105, a nonwoven-like raw surface 103 or a combination thereof, Since the powder 101 is contained, for example, when the temperature reaches 40 캜, far-infrared rays are emitted, and the emitted far-infrared rays promote plant cell activity or plant growth.

Meanwhile, the padding-type raw cotton 105 may be made of natural cotton, such as cotton, or synthetic cotton made of synthetic resin.

The nonwoven fabric-like surface 103 is made of a plurality of fibrous web sheets laminated and bonded together as known in the art, and is distinguished from the padding cotton in that the density is larger than that of the padding.

3 is a cross-sectional view showing a second embodiment of agricultural padding having a far-infrared ray emitting function according to the present invention.

Referring to FIG. 3, the agricultural padding 200 having a far-infrared ray emitting function according to the present embodiment may include a warm keeping layer 210, an upper layer 230, and a lower layer 250.

Specifically, the present embodiment includes a heat insulating layer 210 processed in the form of a padding pad, and an upper layer (not shown) disposed at one of the upper side and the lower side of the insulating layer 210 and containing the mineral powder 201 to emit far- 230 or a lower layer 250.

The upper layer 230 and the lower layer 250 are formed by mixing 60 to 65 parts by weight of the first fibers and 35 to 40 parts by weight of the second fibers containing the mineral powders and processing the resultant into padded or nonwoven fabrics.

Wherein the second fiber is formed by mixing 1 to 10 parts by weight of the mineral powder based on 100 parts by weight of the resin and processing the fiber into a fiber form so that the upper layer or the lower layer is disposed at least on the surface facing the plant, Infrared rays generated by the plant or the crop is directly radiated on the surface of the plant or the crop.

In addition, since the bulky insulating layer 210 is inserted in the middle between the upper layer 230 and the lower layer, a large amount of air can be received to increase the heat insulation effect and the thermal insulation effect. An effect of improving the recoverability due to elasticity can also be expected.

The insulating layer 210, the upper layer 230, and the lower layer 250 may have a single layer or a plurality of layers, respectively, depending on conditions such as the characteristics of the product or the application.

4 is a cross-sectional view showing a third embodiment of an agricultural padding having a far-infrared ray emitting function according to the present invention.

4, the second embodiment of the present invention is similar to the second embodiment except that the insulating layer 210 includes the upper layer 230 and the lower layer 250 and the upper layer 230 and the lower layer 250 There is a difference in that a coating layer 270 is formed. When the insulating layer 210 and the upper layer 230 or the lower layer 250 are bonded by a mechanical method such as needle punching without being bonded by a binder or the first fibers are composed of synthetic fibers capable of being heat- .

Specifically, the coating layer 270 uses a polyacrylic ester such as the binder described above, and further includes the mineral powder 203 or the antibacterial material, so that far-infrared rays can be emitted from the outer surface of the agricultural padding. That is, when a binder is used, the amount or efficiency of far-infrared rays can be increased by mixing the mineral powder with the binder even if no separate coating layer is formed.

Hereinafter, the agricultural padding having the far-infrared ray emitting function according to the present invention and the manufacturing method thereof will be described in more detail with reference to the more preferred embodiments.

First, the elvan stone is crushed to prepare a mineral powder having an average particle size of 400 to 500 nm and a top size of 5 to 20 μm.

6 parts by weight of the mineral powder prepared above and 90 parts by weight of a polyester resin are mixed and then spun according to a conventional spinning process to prepare polyester fiber (second fiber) containing mineral.

The polyester fiber (first fiber) not containing the mineral is mixed with the second fiber at a weight ratio of 60:40, and the mixture is opened and mixed. Then, the nonwoven fabric is formed through the carding process, And then the polyacrylic acid ester dispersed in water on both sides of the laminated original faces was sprayed at a pressure of 3.8 kgf / cm 2 and a flow rate of 5,600 g / min, and then dried at 125 ° C for 80 seconds.

Then, the polyacrylic acid ester dispersed in water on both sides of the laminated original faces was re-sprayed at a pressure of 3.8 kgf / cm 2 and a flow rate of 5,600 g / min, and then re-sprayed at 150 ° C. for 80 seconds, 160 ° C. for 80 seconds, Dry.

Finally, the dried surface of the raw cotton is supplied to a heating roller heated to 250 ° C to finish the production of agricultural padding.

[exam]

The following tests were conducted using the agricultural padding obtained in Example 1, and the results are shown in the respective tables.

Test 1 (far-infrared ray emission test)

Using the agricultural padding obtained in the above example, the far-infrared emissivity and the radiant energy at 40 ° C were measured according to the KFIA-F1-1005 method, and are shown in Table 1 below.

division Elvan content (parts by weight) Far-infrared ray emission amount
Emissivity (5 to 20 탆) Far-infrared ray emission amount
Surge in radiation (W / ㎡) Test Example 3 6 0.883 3.56 * 10 ²

The present invention can be used not only as a warming cover to improve the freshness / preservability of agricultural products as well as to enhance the growth of plants and crops because of high emission amount of far-infrared rays, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

100, 200: Agricultural padding
101, 201, 203: mineral powder
103: Cotton in the form of nonwoven fabric
105: Cotton padded cotton
210: insulating layer
230: Upper layer
250: Lower layer
270: Coating layer

Claims

A method for producing agricultural padding in which far-infrared rays are radiated to a plant or a crop,
A step S1 of providing a first fiber and a second fiber containing a mineral powder;
(S2) mixing 60 to 65 parts by weight of the first fibers and 35 to 40 parts by weight of the second fibers, and opening and mixing the fibers;
A step S3 of forming the sheet-like raw surface by carding the fibers of the open and mixed S2 steps;
A step S4 of stacking a plurality of the original surfaces, further inserting a padding pad between the raw surfaces, and stacking the padding disks so that the original surfaces are arranged vertically;
A step S5 of spraying a binder onto the surface of the laminate to perform primary coating and then primary drying at a temperature of 125 to 135 캜;
A step S6 of re-spraying the binder onto the primary dried layered surface to perform secondary coating and then secondary drying at a temperature of 150 to 160 캜;
And a step S7 of heating the secondarily dried laminated raw paper with a roller heated at 240 to 260 DEG C,
The second fiber is prepared by dispersing 1 to 10 parts by weight of the mineral powder in 100 parts by weight of the resin,
The mineral powder is obtained by pulverizing at least one of the elvan stone, germanium and loess to a particle size of 1 to 50 mu m,
The binder is a water-dispersible polymer material obtained by polymerizing an acrylic monomer and has a water content of 55 to 65% based on the total weight of the binder,
Wherein the binder is adhered while water contained in the binder is evaporated in the drying step of steps S5 and S6.

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