KR20160098679A - A manufacturing mehod of insulating cover - Google Patents

Abstract

The present invention relates to a method for manufacturing a warming insulation material for agriculture and stockbreeding that has multiple layers, uses a synthetic resin and a non-woven fabric as base materials, and has a warming member interposed between an upper cover layer (10) and a lower cover layer (30), the manufacturing method including: a cotton beating (S1) step for a first hollow fiber cotton layer (21); a continuous cotton beating (S2) step for a CNT cotton layer (22) with respect to the cotton beating-completed first hollow fiber cotton layer (21); a step of manufacturing a mixed warming layer (20) through continuous cotton beating (S3) of a second hollow fiber cotton layer (23) with respect to the continuous cotton beating-completed first hollow fiber cotton layer (21)-CNT cotton layer (22); a step of constituting a coating layer (S10) through polyethylene coating with respect to the upper cover layer (10) and the lower cover layer (30) on upper and lower surfaces of the continuous cotton beating-completed mixed warming layer (20), preparation of an upper coating layer (12) and a lower coating layer (32) (S10, S11) and bonding; and a step of backstitching (S) (S20) at regular intervals through combination and superposition of the upper coating layer (12)-mixed warming layer (20)-lower cover layer (30), in which fibers between the upper coating layer (12)-mixed warming layer (20)-lower cover layer (30) of the mixed warming layer (20) are mingled to maintain a continuous yarn fiber coupling relationship.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of manufacturing a thermal insulation covering material for agriculture,

The present invention relates to a method for producing a thermal insulation covering material for agricultural and horticultural use, and more particularly, to a method for producing a covering material which can be used for various purposes such as keeping warm or cold in the agricultural and livestock industry.

Background Art [0002] Heretofore, there has been widely used a thermal insulation covering material as a covering material for use in a greenhouse, a ground growth, a thermal insulation for a winter season in a livestock farmhouse, and a cold insulation material.

These thermal insulation cover materials for agriculture and livestock industry are continuously developed because they have to meet all the warmth, durability, and economy. In view of this, conventionally, many methods for producing thermal insulation coating materials for agriculture and livestock having various physical properties and compositions have been used.

The general construction is that the nonwoven fabric or the thermosynthetic synthetic resin cotton or the like is overlapped with the vinyl or aluminum foil or the like so as to ensure the insulation and warmth. Most of the examples are as follows.

Korean Patent Laid-Open Publication No. 10-2010-0088977 discloses a heat insulating cover part having a structure in which a foamed resin sheet is joined to both sides of an adhesive core by providing a tunnel insulating cover for a vinyl house, The polyphase and the breathable outer skin are stacked in this order, and many of them are sewn together in one direction. However, such a configuration has a drawback in that the air permeability is good but the heat insulating property is deteriorated and the manufacturing cost is increased.

In addition, Korean Patent No. 10-1470400 discloses a heat insulating cover for a vinyl house and a method for manufacturing the same, the heat insulating cover for a vinyl house, 1 thermoplastic elastomer film, and an inner film member to which a first aluminum film is sequentially attached; A central member laminated and sewn sequentially on the first aluminum film of the inner skin member, the middle member being formed by sequentially laminating and sewing a mesh cloth, a cotton padding sheet, and a second nonwoven fabric; And

A second thermoplastic elastomer film and a second aluminum film adhered to the second aluminum film and stacked on the central member so that the second aluminum film is upward, and the width of the inner member, the central member, Direction end portions and the longitudinal direction end portions are mutually coupled and the endothelium material is installed so as to be directed toward the inside of the plastic house. However, since a plurality of constituent members are required and a lot of air is required for its production, And the heat insulating property is deteriorated.

In addition, the Korean Utility Model Registration No. 20-0384675 discloses a vinyl house insulation cover which is formed by inserting a thermoset between an inner skin and an outer skin of a width of about 3 m and a length of about 20 m and forming a plurality of sewing portions at regular intervals, A vinyl house heat insulating cover which is made by sewing a pair of elastic tapes with a sewing thread so that the pair of elastic tapes are opposed to each other, thereby giving more attention to a binding structure.

Korean Utility Model Registration No. 20-0441636 provides a heat insulation cover for a vinyl house with improved warmth while a polyethylene foam pad is laid inside a lower shell made of a fiber fabric and a fiber fabric or an aluminum screen, (PE) foam pad, wherein the polyethylene foam pads are formed by overlapping a plurality of sheets of polyethylene foam (PE) foam pads; And an air layer is formed by inserting a carmium cotton in the inside of the polyethylene (PE) foam pad 3, thereby providing an improved heat insulation cover for a vinyl house.

It is difficult to bend and store due to the plate-like rigid foam pad because it uses a foam pad made of a synthetic resin material. The foamed pad is made up of several layers, and the foamed material comprising the same material, There is no special technical construction for forming multiple pads, and most of the technology is known as a crew, and is merely characterized in that the carmium cotton is sandwiched between the foam pads.

Korean Patent Publication No. 10-2010-0088977 Korean Patent No. 10-1470400 Korean Utility Model Registration 20-0384675 Korean utility model registration 20-0441636

Accordingly, the present invention has been made to solve the above problems,

In particular, the present invention provides a method of manufacturing a new thermal insulation covering material having a composition in which the right is not contradictory, except for the public part, the constitution of Korean Utility Model Registration No. 20-0384675.

In the present invention, the heat-insulating covering material for agricultural and livestock products is further added with heat-shrinking property to uniformly maintain the temperature of day and night, to increase the warming effect, to be useful for energy reduction, Thereby providing a method for manufacturing a thermal insulation coating material.

In order to accomplish the above object, in the method of manufacturing the thermal insulation covering material for agricultural and horticultural use of the present invention,

A method of manufacturing a thermal insulation covering material for agricultural and horticultural use having a multilayer structure comprising a plurality of layers (layers) made of a synthetic resin and a nonwoven fabric as a base material, and a thermal insulating member interposed between the upper cover layer and the lower cover layer; In the above manufacturing method,

The other surface of the first hollow fiber layer,

The process of continuously etching the CNT cotton layer with respect to the first hollow yarn layer finished on the other side,

A step of fabricating a hybrid insulating layer by successively rubbing the second hollow fiber yarn layer against the first hollow fiber yarn layer-CNT cotton layer,

The upper cover layer and the lower cover layer are coated with polyethylene on the upper and lower surfaces of the continuous surface hybrid inorganic insulating layer to form an upper coating layer and a lower coating layer, respectively,

And the upper coating layer, the hybrid insulation layer, and the lower cover layer are stacked,

And the fiber between the upper coating layer, the hybrid insulation layer and the lower cover layer of the hybrid insulation layer is tangled to maintain a continuous fiber yarn engagement relationship.

In the thermal insulation coating material for agricultural and agriculture use according to the production method of the present invention,

(1) The heat storage function is imparted to the thermal insulation covering material so that the heat accumulated during the day is discharged at night, thereby minimizing the fuel cost for maintaining the temperature.

(2) Since it is simple in structure and composed of a single continuous surface, it can be used as a thermal insulation coating material for a preferable use because of high heat storage and heat preservation.

(3) The production cost is lower than other products, and the mechanical bonding force also increases because it is composed of a single surface.

(4) Providing an improved piercing between layers to prevent loosening during use or storage of the thermal insulation covering material, thereby further increasing the service life.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cut-away sectional view showing a cross-section of a thermal insulation covering material produced by the method for producing a thermal insulation covering material for agricultural and horticultural use of the present invention.
Fig. 2 is a manufacturing process diagram of the method for manufacturing the thermal insulation covering material for agricultural and horticultural use of the present invention. Fig.
3 is a photograph showing a cross section of the thermal insulation covering material according to the method for producing the thermal insulation covering material for agricultural and horticultural use of the present invention.
4 is a plan view of a part of the heat insulating timber according to the method of manufacturing the thermal insulating covering material for agricultural and horticultural use of the present invention.
Fig. 5 is a diagram for explaining the effect of the method of manufacturing the thermal insulation covering material for agricultural and horticultural use of the present invention. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a cut-away sectional view showing a cross section of a thermal insulation covering material produced by the method for producing thermal insulation covering material for agricultural and horticultural use of the present invention, Fig. 2 is a manufacturing process diagram of the thermal insulation covering material for agricultural and horticultural use of the present invention, Fig. 4 is a plan view of a part of the heat insulating timber according to the method of manufacturing the thermal insulation covering material for agriculture and livestock according to the present invention, Fig. 5 is a plan view of the thermal insulating covering material for agricultural and horticultural use according to the present invention The effect of the method for manufacturing a covering material will be described together with a table sequentially.

One of the main aspects of the method for producing the thermal insulation covering material for agricultural and horticultural use of the present invention is that the layer constituting the multilayered composite layer is composed of CNT cotton treated with one or more carbon nanotubes (CNT: Carbon Nano Tube) And the layer is fabricated.

CNT cotton, which is produced by processing carbon nanotubes (CNTs), is produced from various domestic and foreign manufacturers,

Carbon nanotubes (CNTs) are formed by adhering or adsorbing carbon nanotubes (CNTs) in a hollow or non-hollow synthetic resin cotton as various process methods so as to have characteristics of carbon nanotubes (CNTs).

In Korea, it is commercialized and widely distributed by Huvis and JiCloud.

More specifically, according to Korean Patent No. 10-1174272, Mitsubishi Rayon Co., Ltd. of Japan has a core-sheathed acrylic staple fiber including charcoal particles in its core, absorbing sunlight to exhibit heat- (Trade name), and a special flat cross-section fiber called HEATNAVI (trade name) containing a carbon-based inorganic material is used in order to absorb solar light and to exhibit solar heat in cooperation with Japan's DeSant and Deijin Fibers And it is said that it is applied to outdoor clothes mainly because it is made of cotton.

Since the CNT cotton layer formed by using the CNT cotton having the carbon nanotube (CNT) has a heat storage performance and a heat storage performance, the CNT cotton layer is very useful as a thermal insulation material, mass-produced and kept at a low price .

The present invention will be described with reference to the drawings, which are a cross-sectional view and a photograph of Figs. 3 and 4, showing a partially cutaway thermal insulation covering material (C) according to the method for producing a thermal insulation covering material for agricultural and horticultural use of the present invention shown in Fig.

The thermal insulation covering material (C) according to the method for producing a thermal insulation covering material for agricultural and horticultural use according to the present invention is composed of a plurality of layers as in the case of a conventional general covering material, It is needless to say that various layer structure manufacturing methods are possible.

In this layer structure, a mixed insulating layer 20 is formed between the upper cover layer 10 and the lower cover layer 30 as a substantial part of the present invention.

As shown in the figure, the upper cover layer 10 is formed with a top coating layer 12 coated with polyethylene on the back surface of a conventional nonwoven fabric 11.

The nonwoven fabric 12 used in the upper cover layer 10 can be used as long as it is made of various long fibers and short fibers, and is dyed black for adsorption of sunlight.

The upper coating layer 12 is formed by coating a light-transmitting white or transparent polyethylene with a thin film, which is a hermetic member for improving the warmth and the hermeticity of the inside to improve the warmth and prevent intrusion of external rain etc. Is used.

The lower cover layer 30 also has the same structure as the upper cover layer 10 and is also formed by coating a lower coating layer 32 on the nonwoven fabric 31. As shown in the figure, the nonwoven fabric 31 used for the lower cover layer 30 uses a white color, which means that a part of the sunlight entering from the upper coating layer 12 of the heat- It is meaningful to select white as a hue having high light reflectivity for the purpose of being transmitted through the lower cover layer 30 and not passing through it, that is, for blocking it.

A hybrid insulating layer 20 is provided between the upper cover layer 10 and the lower cover layer 30 and serves as a main technical point of the thermal insulation covering material C of the present invention. The hybrid insulating layer 20 and the lower cover layer 30 are stacked together to be stitched to maintain a plate-like shape.

Another important aspect of the present invention is that, as shown in the photograph of the plan view of FIG. 4, in the case of the stitched material S, the alternate sewing threads S1 and S2 are alternately repeated in a zigzag shape, S1, and S2 repeatedly have mutual intersections J1, J2, and J3.

The reason for this construction is that when the single stitched yarn is stitched and the single stitched yarn is pulled out during the operation or during storage, the upper cover layer 10 - the hybrid insulating layer 20 - the lower cover layer 30 ) Is released from the fixed configuration of the layer, which becomes a defective product and can not be used. In fact, these maritime activities occurred frequently in the process of releasing the thermal insulation wrapped around agricultural and livestock sites.

Therefore, it is a very important technical viewpoint to form the stitch S by using the alternate sewing threads S1 and S2.

The hybrid insulating layer 20 is also composed of multiple layers which are also pristressive and are shown as having three layers in the views of FIG. 1 and FIG. 3, for example. However, if necessary, It is possible to increase each layer by constructing.

The hybrid insulating layer 20, which is a major aspect of the manufacturing method of the present invention, comprises a hollow weft yarn layer 21, a CNT cotton layer 22, and a hollow weft yarn layer 23.

The hollow fiber cotton yarn is produced in the form of a product such as "Hexa flower" and is manufactured in the process of manufacturing a synthetic fiber yarn so as to have a hollow part along the longitudinal axis of the fiber yarn, and is excellent in heat retention and heat resistance by pore It has been found and widely used.

For example, in constructing the three-layer hollow yarn layer 21 -CNT cotton layer 22-hollow yarn layer 23, the hollow yarn layer 21, the CNT cotton layer 22, They do not combine the cotton layers 23, but they all exist and function as a kind of cotton,

The CNT cotton layer 22 is rubbed on the hollow weft yarn layer 21 while rubbing the hollow weft yarn layer 23 together with the CNT cotton layer 22, The hybrid insulating layer 20 must be formed.

This is because, when the hollow sosome layer 21, the CNT cotton layer 22 and the hollow sosome layer 23 are separately formed as separate plate-like cotton plates, the bonding between the fibers between the respective layers is weak, and the thermal conductivity is lowered. However, when the hollow fiberglass layer 21, the CNT cotton layer 22, and the hollow fiberglass layer 23 are continuously joined together as a single object, the constituent fiber yarns of the respective layers are joined and tangled, Thermal conductivity and functionality are integrated and expressed.

[Examples of Manufacturing Process]

Preferred manufacturing processes of the present invention are as follows.

As in the manufacturing process of FIG. 2, the other surfaces S1, S2 of the first hollow fiber layer 21,

(S2) of the CNT cotton layer (22) with respect to the first hollow fiber layer (21)

The hybrid insulating layer 20 as a single surface body is constituted as a continuous surface S 3 of the second hollow fiber layer 23 with respect to the first hollow fiber layer 21 and the CNT cotton layer 22, do.

The upper cover layer 10 and the lower cover layer 30 are coated with polyethylene to prepare an upper coating layer 12 and a lower coating layer 32 on the upper and lower surfaces of the hybrid thermal insulation layer 20, S10, and S11) to adhere to each other to form a coating layer (S10)

The upper coating layer 12, the hybrid insulating layer 20 and the lower cover layer 30 are folded together to form alternating sewing threads S1 and S2 to form a product S (S30).

The hybrid insulating layer 20 is formed in the mixed insulating layer 20 having the CNT cotton layer 22 in the middle and heated by the sunlight absorbed in the upper cover layer 10, The internal temperature of the vinyl house and the like is made higher than that of the conventional product due to the effect of ordinary CNT which is heat generated at night while being stored in the heat storage unit.

It is considered that this is because the heat accumulating function of the hybrid insulating layer 20 and the insulating function of the hollow weft yarn layer 21 are combined.

[Experimental Example]

The result of measurement of the temperature of the seedling bed in the vinyl house obtained by using the heat-insulating covering material (C) and the conventional multilayer commercial coating material (comparative group) obtained by the production method of the present invention thus obtained is shown in FIG. 5 As shown in FIG.

As shown in the chart, when comparing the control group with the thermal insulation coating material (C) according to the manufacturing method of the present invention (referred to as a control group), the control group was found to be 0.1 to 0.6 degrees Celsius or more The temperature difference appears to be greater on a clear day when the weather is not blurred, which is considered to be a result of effective storage of the heat storage function of the CNT cotton layer 22 of the hybrid heat insulation layer 20 by sunlight .

C: Insulating cover material
10: upper cover layer
20: Hybrid insulation layer
30: Lower cover layer
S1, S2: Synthetic sewing thread

Claims (4)

A method of manufacturing a thermal insulation covering material for agricultural and horticultural use in which a heat insulating member is interposed between an upper cover layer (10) and a lower cover layer (30), comprising a plurality of layers (layers)
In the above manufacturing method,
The process of the other surface S1 of the first hollow fiber layer 21,
(S2) of the CNT cotton layer (22) with respect to the first hollow fiber layer (21)
A step of fabricating a hybrid insulation layer 20 by successively rubbing (S3) the second hollow fiber sosynthetic layer 23 against the first hollow fiber sopper layer 21 and the -CNT cotton layer 22,
The upper cover layer 10 and the lower cover layer 30 are coated with polyethylene and the upper and lower coating layers 12 and 32 are prepared respectively on the upper and lower surfaces of the hybrid surface insulating layer 20, S11) to form a coating layer (S10)
(S20) the upper coating layer 12, the hybrid insulating layer 20, and the lower cover layer 30 by putting them together at regular intervals;
Characterized in that fibers between the upper coating layer (12), the hybrid insulating layer (20) and the lower cover layer (30) of the hybrid insulating layer (20) are tangled to maintain a continuous fiber yarn binding relationship. Gt; The method according to claim 1,
The hollow yarn is a hollow body formed of a synthetic fiber yarn and improved in warmth,
Wherein the CNT cotton of the CNT cotton layer (22) is selected from a commodity having carbon nanotubes (CNT) properties by coating, adhering and bonding the carbon nanotubes to a synthetic resin constituting a cotton body. The method according to claim 1,
The upper cover layer 10, the hybrid insulation layer 20 and the lower cover layer 30 are fixed to each other at equal intervals in a state where they are joined together and the stitched material S has a pair of alternate sewing threads S1, S2 (J1, J2, J3...) Repeatedly with the alternate sewing threads (S1, S2) being stitched in a zigzag shape repeatedly alternately. Way. The method according to claim 1,
Characterized in that the nonwoven fabric (11) of the upper cover layer (10) is black for absorbing light and the nonwoven fabric (31) of the lower cover layer (30) is selected to be white for light reflection. ≪ / RTI >

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