KR100313100B1 - Adhesive tape and method/apparatus for manufacturing thereof - Google Patents

Abstract

The present invention performs the function of keeping warm and cold so as not to be affected by external temperature changes on the outer periphery of the to-be-protected body 1, such as a tank for storing gas, liquid, and powder or a pipe pipe for inducing the flow of fluid. A flexible adhesive tape 10 is provided to easily protect the heat insulator 2 so that adhesion can be easily performed, and a coating adhesive layer 12 is formed on the surface of the nonwoven fabric 11. Provided is a liquid adhesive liquid layer 13, the invention relates to a method for manufacturing an adhesive tape having excellent waterproofing and moisture proofing effect and excellent flame retardant function and a manufacturing apparatus thereof.

Description

Adhesive tape and its manufacturing method / apparatus {ADHESIVE TAPE AND METHOD / APPARATUS FOR MANUFACTURING THEREOF}

The present invention relates to an adhesive tape and a method / apparatus thereof, and more particularly, to provide a flexible adhesive tape having a function of moisture-proofing and waterproofing so as to easily protect a heat insulating material which performs a function of heat insulation and cold insulation. At the same time, the present invention relates to a production method and a production apparatus capable of mass production of this adhesive tape.

In general, the outer periphery of the to-be-protected body, such as a tank for storing gas, liquid, or powder, or a pipe pipe for inducing a flow of fluid, is provided with a heat insulating material that functions to keep warm and cool so as not to be affected by external temperature changes. .

This heat insulating material is made of a material with very low thermal conductivity to block heat flow, and according to the temperature of use, it is insulated (100 ℃ or less), insulation (100 ~ 600 ℃), heat insulating material (about 600 ~ 1100 ℃), fireproof insulation (About 1100 ° C. or more), and the like. Insulating material mainly uses a material having a porous structure. For example, a protected material requiring a heat source may include a hydraulic alumina cement or an additive for improving workability. A compounded amorphous heat insulating material is used, and a fiber heat insulating material made of ceramic fiber, which is lightweight, has good heat insulating property, heat resistance, heat shock resistance, and workability, can also be used.

Ceramic fiber is made of ceramic material with excellent heat resistance, corrosion resistance, and abrasion resistance, and it can be used as a fireproof insulation material for building fiber by fiberizing. Rockwool, a kind of artificial inorganic fiber, is insulated and insulated. It is also used as a material for construction and various equipment for soundproofing.

Various types of insulations as described above are mainly used in the outer periphery of the protected body, such as a tank or a pipe pipe for storing or directing gas, liquid and powder, and the insulation is introduced from the outside again. It is protected with aluminum alloy or tin to prevent rain or moisture.

Aluminum alloy to protect the insulation material is an alloy mainly composed of aluminum and mixed with other elements to reinforce the mechanical properties lacking in aluminum, and the density is about 2.8g / cm and the steel (about 7.8g / cm) or copper alloy (about 8.9) g / cm) and very light properties. In addition, aluminum alloy is easy to process, and all metal processing methods such as plastic deformation processing, casting and welding such as cutting, extrusion, rolling, press, etc. can be applied. In the case of bending or moving after being installed with built-in insulation in the field, the original beautiful shape is often lost and it is not restored and requires reinstallation. Has to be re-welded, and in particular, there is a problem of difficulty in dismantling and disposal.

On the other hand, tin is a galvanized thin steel sheet that is used for roofing plates, building materials, and packaging materials.It is easily corroded when the zinc plating is peeled off, and does not recover like aluminum alloys. There is still an indication that it is not suitable for the exterior of the insulation.

The present invention has been made to solve the problems described above, the first object is the temperature outside the outer periphery of the to-be-protected body, such as a tank for storing gas and liquid, powder or a pipe pipe for inducing the flow of fluid The present invention provides an adhesive tape that can be easily protected against heat and cold, and has excellent moisture / waterproof performance and easy processing.

It is a second object of the present invention to provide an adhesive tape manufacturing method capable of mass-producing an adhesive tape, which is used for the outer shell of a heat insulating material, into a faster and higher quality product.

A third object of the present invention is to provide an adhesive tape manufacturing apparatus capable of easily commercializing an adhesive tape having excellent waterproof and moisture proof functions.

1 is a use state diagram showing an adhesive tape according to the present invention.

Figure 2 is a perspective view showing a partially expanded state of the adhesive tape according to the present invention.

Figure 3 is a process chart for explaining the manufacturing method of the adhesive tape according to the present invention.

4 is a perspective view showing a manufacturing apparatus of an adhesive tape according to the present invention.

Explanation of symbols on the main parts of the drawings

1: to-be-protected body 2: insulation

10: adhesive tape 11: nonwoven fabric

12: coating adhesive liquid layer 12a: coating adhesive liquid

13: liquid adhesive liquid layer 13a: liquid adhesive liquid

100: adhesive tape manufacturing apparatus 110: the lower frame

111: support shaft 120: upper frame

121: first submerged tank 122: supporting roller

123: rolling roller 130: horizontal frame

131: heating wire 132: cutting member

132a: cutter 133: extrusion roller

140: second submerged tank 150: rotating member

160: cylindrical body S1: the first non-woven fabric immersion step

S2: 1st pressing step S3: Heating step

S4: Cutting Step S5: Second Pressing Step

S6: Second non-woven fabric immersion step S7: Packing step

The present invention for achieving the first object is at least a non-woven fabric wound on the outer periphery of the heat insulating material for insulating and keeping the to-be-protected body, a coating adhesive liquid layer which is applied to both sides of the nonwoven fabric and dried by heating, and this coating An adhesive tape comprising a liquid adhesive liquid layer which is coated on the adhesive liquid layer and is present in a liquid state so that the nonwoven fabric is wound on the heat insulating material, and which is dry-bonded at room temperature; The coating adhesive liquid for implementing the coating adhesive liquid layer has a chemical affinity and thermosetting ethylene chobico-polymer (EVA) adhesive 80 to 90%, the penetration and chemical stability, water resistance to the nonwoven fabric 5 to 10% of this good acrylic acid ester binder, 5 to 10% magnesium chloride flame retardant having a counteracting effect by thermal power, the ethylene super bicopolyoma adhesive and acrylic ester binder, chloride 0.1 to 0.5% of a dispersant to disperse the magnesium flame retardant to be uniformly mixed with each other, and bubbles or bubbles that may be generated in the process of mixing the ethylene super bico-polima adhesive, the acrylate ester binder, and the magnesium chloride flame retardant by the dispersant. It comprises 0.1 to 0.5% of silicone resin (Silicon Resin) antifoaming agent which suppresses the The basic technological feature of the configuration.

The present invention for achieving the second object, the first nonwoven fabric immersion step of immersing in a coating adhesive liquid while expanding the nonwoven fabric wound in a roll (ROLL) shape, and a pair of rolling rollers coated with the nonwoven fabric coated with the coating adhesive liquid The first pressing step of uniformly pressing through the ROLLER, and heating and drying the coating adhesive liquid uniformly press-coated on both sides of the nonwoven fabric at a temperature of 75 to 100 ° C. for 30 to 50 seconds. A heating extrusion step, a cutting step of cutting and cutting a nonwoven fabric having a coating adhesive liquid layer to a desired width, and a pair of extrusion rollers cutting the nonwoven fabric cut to a desired width. Second compression step to provide flexibility by passing through the rollers, and 2 to uniformly realize the liquid adhesive layer on the coating adhesive layer by immersing the plurality of cut nonwovens in the liquid adhesive solution. And that the nonwoven fabric immersion step, after winding a number of times the non-woven implementations of liquid adhesive solution layer into a roll comprising a packaging wrapping solidifying step so as to be protected from the outside air to the primary feature of the the technical process.

The present invention for achieving the third object, the support shaft is inserted into the center of the non-woven fabric wound on a roll (ROLL) shape a number of times and rotated, and positioned on the upper frame formed on the upper frame extending from the lower frame A first submersion tank storing the adhesive liquid, a support roller installed on the upper frame of the front end of the first submersion tank, and smoothly rotating the nonwoven fabric released through the rotation of the support shaft; and an upper frame of the rear end of the first submersion tank. A pair of rolling rollers which are installed thereon and press-coated so that the coating adhesive liquid applied to both sides of the nonwoven fabric is uniformly distributed via the first submersion tank, and arranged on a horizontal frame to be uniform on both sides of the nonwoven fabric by the pair of rolling rollers. And a heating wire for heating and drying the coated adhesive solution to realize a coating adhesive layer, and installed on the horizontal frame behind the heating wire. A cutting member intermittently set with a plurality of cutters for cutting and cutting a non-woven fabric having an air-coated adhesive liquid layer to a desired width, and installed on the rear end of the horizontal frame to the desired width by the cutting member. It is a basic feature on the technical device that comprises a pair of extrusion roller for pressing and outputting the cut non-woven fabric flexible (FLEXIBLE).

Hereinafter, a preferred embodiment of the adhesive tape according to the present invention will be described with reference to FIGS. 1 and 2.

1 is a state diagram showing an adhesive tape according to the present invention, Figure 2 is a perspective view showing a partially unfolded adhesive tape according to the present invention.

The adhesive tape 10 according to the present invention, as shown in Figs. 1 and 2, the outside of the to-be-protected body 1 which instructs a tank for storing gas and liquid, powder or a pipe pipe for inducing the flow of fluid. It is based on a nonwoven fabric 11 wrapped around the periphery and enclosing the heat insulator 2 to perform the functions of thermal insulation and cold storage so as not to be affected by external temperature changes.

Non-woven fabrics 11 are fabrics made of a web or a combination of fibers made of a nonwoven or nonwoven fabric, ie not woven, which are orientated and randomized to the web. (Random web), and the like.

Orienting the fibers is the same as making a normal fabric, and the method of arranging the fibers in parallel is applied. The parallel fibers are weak in the transverse direction, so they are complemented by cross-aligned webs to compensate for this. You may. Cross-array webs are those in which one web is placed on another web as close to the right angle as possible, but has a slower manufacturing speed but good rigidity than parallel-array webs.

Nonwoven fabric 11 produced by such a variety of manufacturing method is rich in elasticity and the greater the resilience, the raw material is mainly mobilized synthetic fibers such as rayon, cotton or polyester nylon.

Both sides of the nonwoven fabric 11 wound around the outer periphery of the heat insulating material 2 to keep the body to be cooled 1 and the heat insulated can be protected from external rain or moisture, that is, a coating adhesive having a function of moisturizing and waterproofing. (12a) is applied and dried to form a coating adhesive liquid layer 12, and the liquid adhesive liquid layer 13 which is dried and cured at room temperature while being directly bonded to the outer periphery of the heat insulating material 2 again on the coating adhesive liquid layer 12. ) Is provided.

The coating adhesive solution 12a, which implements the coating adhesive solution layer 12, has 80 to 90% of an ethylenic-vinyl acetate copolymer (EVA) adhesive having good chemical affinity and thermosetting property, and 5-10% acrylic acid ester binder having good penetration, chemical stability and water resistance to the nonwoven fabric 11, and 5-10% magnesium chloride flame retardant having a resistance against fire 0.1 to 0.5% of a dispersant for dispersing the ethylene super bico-polima adhesive, the acrylic acid ester binder, and the magnesium chloride flame retardant to be uniformly mixed with each other; Is composed of 0.1 to 0.5% of a silicone resin (Silicon Resin) antifoaming agent to suppress bubbles or bubbles that may be generated during the mixing process The lure is.

In this case, the ethylene chobicopolymer (Ethylene-Vinyl Acetate copolymer) has an excellent flexibility up to -58 ℃ (easy to mix with other compositions, as well as easy to cool the cooling effect It can be easily applied to the invention, high stability against moisture, water or ultraviolet rays can maximize the waterproofing effect and more free from the destruction phenomenon by the irradiation of ultraviolet rays.

Acrylic Acid Ester can be obtained from acrylic acid and alcohol, and it is preserved in the liquid state at room temperature, and can easily polymerize by peroxide, light, heat, etc. Maximize the action.

Magnesium Chloride has a melting point of 714 ° C, a boiling point of 1412 ° C and a specific gravity of 2.32 (measurement temperature of 25 ° C).

The flame retardant may be replaced with antimony oxide.

This antimony oxide is a chemical formula Sb ₂ O _{3 and} is also referred to as a chemical formula 291.5 antimony trioxide. Melting point 656 ℃, boiling point 1550 ℃, specific gravity 5.19 in cubic system, 5.76 in tetragonal system, difficult to dissolve in water but soluble in hydrochloric acid and alkali, and can be heated with carbon or hydrogen to obtain metal antimony and white paint Used as a flame retardant.

Dispersant is to make uniform mixing of ethylene chobicophorima, acrylic acid ester and magnesium chloride with different chemical structure. Alkyl naphthylene sulfonate, alkylbenzene sulfonate, higher alcohol ester sulfate , Lignin sulfonate, water-soluble polymer and the like can be used.

Silicone resin (Silicon Resin) is a kind of surfactant that acts to suppress foaming or destroy foams already formed. For example, when bubbles are generated in the process of mixing ethylene chobicophorima, acrylic acid ester, and magnesium chloride having different chemical structures by the dispersant, a monomolecular film of the bubble liquid is formed at the interface of the mixture liquid, which is a liquid. When it is pushed out of the surface, it is combined with the surface alignment molecule film oriented on the liquid surface to form a two-molecule alignment film to stabilize the bubble itself.The defoaming operation increases the solubility of the liquid to prevent the formation of stable bubbles in the liquid. It is carried out by lowering or mixing other substances in the alignment film to hinder stable mechanical equilibrium. The medium used at this time is an antifoaming agent. Examples of the antifoaming agent include polyoxyethylene-polyoxypropylene copolymers having high lipophilic properties.

The coating adhesive liquid 12a, which is mixed at a uniform ratio by the high-speed rotation of the ethylene super bicoporima adhesive, the acrylate ester binder, the magnesium chloride flame retardant, the dispersant, and the silicone resin antifoaming agent, is mixed at a ratio as described above. It is evenly applied to both sides of the nonwoven fabric 11 by immersion, and then dried and cured under high temperature heat to form an outer layer of the nonwoven fabric 11, that is, a coating adhesive layer 12, thereby providing a function of moisturizing and waterproofing. .

On the coating adhesive liquid layer 12 which is dry cured on both sides of the nonwoven fabric 11 while being subjected to high temperature heat, a liquid adhesive liquid layer 13 which is directly bonded to the outer circumference of the heat insulating material 2 and dried at room temperature is provided. The liquid adhesive liquid 13a embodying this liquid adhesive liquid layer 13 has the same composition as the coating adhesive liquid 12a and further includes 0.1 to 0.9% of an anti-spill agent.

That is, the liquid adhesive liquid 13a that implements the liquid adhesive liquid layer 13 has 80 to 90% of an ethylene super bicopolyoma adhesive having good chemical affinity and thermosetting, and penetration force and chemical stability and water resistance to the nonwoven fabric 11. 5-10% of this good acrylate ester binder, 5-10% of magnesium chloride flame retardant having a resistance against thermal power, the ethylene super bico-polima adhesive, acrylate ester binder, and magnesium chloride flame retardant are dispersed to be uniformly mixed with each other. 0.1-0.5% of a silicone resin defoaming agent which suppresses bubbles or bubbles which may be generated while the dispersant to be mixed with the ethylene super bico-polima adhesive, the acrylic acid ester binder, and the magnesium chloride flame retardant is uniformly mixed with each other by the dispersant. And the liquid adhesive liquid 13a is distributed evenly on the coating adhesive liquid layer 12 and is viscous so as not to flow down. ; It comprises a configuration including inhibitors 0.1~0.9% shedding providing viscosity).

Typically, the viscosity of a liquid depends on the viscosity of the solvent and the type and concentration of the solute. Non-sticky fluids, such as water, have low viscosity, and liquids such as castor oil and glycerin have high viscosity. If the viscosity is small, the liquid adhesive liquid 13a easily flows down and cannot be evenly distributed on the coating adhesive liquid layer 12, so that it cannot normally serve as the adhesive tape 10, whereas if the viscosity is too high, the liquid adhesive When the adhesive tape 10 is attached to the outer circumference of the heat insulator 2, the liquid 13a is easily agglomerated or solidified unevenly, and thus there is a disadvantage that an irregular space is generated and the waterproof function is reduced. Is very important.

Therefore, the liquid adhesive liquid 13a embodying the liquid adhesive liquid layer 13 according to the present invention is evenly distributed on the coating adhesive liquid layer 12 and then provided with a spill preventing agent that provides viscosity to prevent it from flowing down. It consists of a structure which further contains -0.9%.

Next, the adhesive tape manufacturing method according to the present invention will be described with reference to FIG. 3.

Figure 3 is a process chart for explaining the manufacturing method of the adhesive tape according to the present invention.

First, while spreading the nonwoven fabric 11 wound a plurality of times in the shape of a roll, it is immersed in the coating adhesive solution 12a so that the coating adhesive solution 12a can be applied to both sides of the nonwoven fabric 11 (S1). The nonwoven fabric 11 coated with the coating adhesive liquid 12a is passed through a pair of rolling rollers 123 and uniformly compressed (S2).

Looking at the surface of the non-woven fabric 11 submerged in the coating adhesive solution 12a is inevitably distributed due to the characteristics of the coating adhesive solution 12a, this non-uniform distribution phenomenon is solved while passing through the rolling roller 123.

Thereafter, the coating adhesive solution 12a uniformly press-coated on both surfaces of the nonwoven fabric 11 is dried by heating to a temperature of 75 to 100 ° C. for 30 to 50 seconds (S3). At the same time, the non-woven fabric 11 in which the coating adhesive liquid layer 12 is implemented is cut to a plurality of desired cuts (S4).

When the coating adhesive liquid 12a is heated to dry, it hardens | cures and the nonwoven fabric 11 hardens | cures, but this state becomes a condition which further enhances the smoothness at the time of cutting.

Next, the nonwoven fabric 11 cut to the desired area and cut into a plurality of pieces is passed again between a pair of extrusion rollers 133 to provide flexibility (S5), and then the nonwoven fabric is cut into a plurality of pieces. (11) is immersed in the liquid adhesive liquid (13a) to implement the liquid adhesive liquid layer 13 on the coating adhesive liquid layer 12 (S6).

When the non-woven fabric 11 is hardened by heat-drying the coating adhesive solution 12a, the cutting process can be easily performed. However, since it is difficult to wind the work around the outer periphery of the heat insulating material 2, the pair of extrusion rollers 133 By providing flexibility, it has a flexible characteristic that is not found in aluminum alloy or tin.

Finally, the non-woven fabric 11 having the liquid adhesive liquid layer 13 embodied in roll shape is packaged so as to be protected from external air after winding a plurality of times (S7) to manufacture and commercialize the adhesive tape 10. You can complete it. Since the liquid adhesive liquid 13a has a property of hardening in air at room temperature, it is protected by a separate packaging process.

Now, the adhesive tape manufacturing apparatus according to the present invention will be described with reference to FIG. 3 in part with FIG. 4 as follows.

4 is a perspective view showing an apparatus for producing an adhesive tape according to the present invention.

Adhesive tape manufacturing apparatus 100 according to the present invention is a lower frame 110, the upper frame 120, and the upper frame 120 formed higher than the lower frame 110, as shown in Figure 4 ) And horizontal frame 130 installed side by side in the horizontal direction as the main structure.

At this time, the height of the lower frame 110, the upper frame 120 and the horizontal frame 130 is an exemplary division, the variable height is not limited by various changes of the present invention.

On the lower frame 110, a support shaft 111 is inserted into the center of the nonwoven fabric 11 wound a plurality of times in a roll shape to be rotated, and the support shaft 111 is an extrusion roller 133 to be described later. It is rotated manually by the active rotational force by the rotation of the.

In addition, the upper frame 120 extending higher than the lower frame 110 is provided with a first submersion tank 121 for storing the coating adhesive 12a. The coating adhesive solution 12a is made of the composition as described above, and the cylindrical body 160 is placed on the first immersion tank 121 to load the non-woven fabric 11 so as to be deeply submerged.

The cylindrical body 160 is placed on the nonwoven fabric 11 submerged in the coating adhesive liquid 12a, and the nonwoven fabric 11 is submerged in the coating adhesive liquid 12a while the vertical height is varied according to the capacity of the coating adhesive liquid 12a. Perform the function of providing the appropriate load so that it can be. That is, the cylinder 160 is taut on the first submerged tank 121 due to the buoyancy of the coating adhesive liquid 12a itself and the expansion force of the nonwoven fabric 11 due to the extraction of the extrusion roller 133 described later. It acts to be submerged by loading the non-woven fabric 11 to be passed in the downward direction.

On the other hand, on the upper frame 120 of the front end of the first immersion tank 121 is further provided with a support roller 122 for smoothly advancing the nonwoven fabric 11 released through the rotation of the support shaft 111, the first On the upper frame 120 at the rear end of the submersion tank 121, a pair of rolling rollers are pressed to uniformly distribute the coating adhesive liquid 12a applied to both sides of the nonwoven fabric 11 via the first submersion tank 121 ( 123 is installed.

The pair of rolling rollers 123 compresses the coating adhesive liquid 12a unevenly applied to both sides of the nonwoven fabric 11 so as to naturally infiltrate the nonwoven fabric 11 and at the same time distributes uniformly. .

And, on the horizontal frame 130 by heating a coating adhesive solution 12a uniformly applied on both sides of the nonwoven fabric 11 by a pair of rolling rollers 123 to implement a coating adhesive liquid layer 12 131 is arranged. The heating wire 131 generates heat at a temperature of approximately 70 to 105 ° C., thereby applying high-temperature heat to the coating adhesive 12a so that both surfaces of the nonwoven fabric 11 can be coated and stiffen. Make sure

The nonwoven fabric 11 hardened by the coating adhesive liquid layer 12 is sliced into a plurality of pieces by the cutting member 132 installed on the horizontal frame 130 at the rear end of the heating wire 131. The cutting member 132 is intermittently set with a plurality of cutters 132a so as to cut and divide the nonwoven fabric 11 on which the coating adhesive liquid layer 12 is implemented.

In addition, a pair of extrusion rollers 133 are provided on the rear end of the horizontal frame 130 by pressing the nonwoven fabric 11 cut to the desired width by a cutting member 132 in a flexible manner. The extrusion roller 133 is driven by a motor not shown to provide an active rotational force.

When the non-woven fabric 11 stiffly hardened by the high temperature heat of the heating wire 131 passes through the extrusion roller 133, the nonwoven fabric 11 has flexibility, thus facilitating the work around the outer periphery of the heat insulating material 2 in the vehicle.

At the rear end of the extrusion roller 133, a liquid adhesive solution 13a is stored in order to implement the liquid adhesive solution layer 13 on the coating adhesive solution layer 12 of the nonwoven fabric 11 as shown in FIG. 2 submerged tank 140 is further provided. Of course, the above-mentioned second submerged tank 140 is provided with a cylinder 160 mentioned above to help the submersion of the nonwoven fabric (11).

In addition, the rotary member 150 is installed at the rear end of the second submersion tank 140 to implement the liquid adhesive liquid layer 13 so as to wind the final product of the adhesive tape 10 into a roll shape. The adhesive tape 10 wound many times by the rotating member 150 is packaged so that it can be utilized for the shell of the heat insulating material 2 in various construction sites and industrial sites.

According to the adhesive tape according to the present invention as described above and a manufacturing method / device thereof has the following beneficial effects.

First, an insulator that functions to insulate and insulate the outer periphery of the to-be-protected body 1 such as a tank for storing gas, liquid and powder, or a pipe pipe for inducing the flow of fluid so as not to be affected by external temperature changes. There is an excellent effect of providing a flexible adhesive tape (10) to easily protect (2) to perform the bonding operation very easily.

Second, by implementing the coating adhesive layer 12 on the surface of the nonwoven fabric 11 and then providing the liquid adhesive layer 13 has excellent waterproof and moisture proof effect and excellent flame retardant function.

That is, the coating adhesive liquid 12a has good chemical affinity and thermosetting ethylene-cho bicoporima (EVA) and acrylic acid having good penetration and chemical stability and water resistance to the nonwoven fabric 11. (酸) Acrylic Acid Ester binder, Magnesium Chloride flame retardant that has a strong resistance against fire, dispersant to disperse uniformly, and silicone resin to suppress bubbles or bubbles Providing a mixture of antifoaming agent has an excellent effect of maximizing the waterproof, moisture-proof and flame retardant effect.

In addition, the liquid adhesive liquid 13a is further distributed on the coating adhesive liquid layer 12, and further includes a spill preventing agent that provides a viscosity so as not to flow down, thereby adhering to the outer periphery of the heat insulating material 2. The winding process of the tape 10 can be performed very easily, and at the same time, there is a beneficial effect that can be easily cured in air at room temperature.

Third, even after bending the bent or bent of the to-be-protected body 1, such as a pipe embedded in the heat insulating material 2 after completing the adhesive process of the adhesive tape 10 can be changed flexibly with the heat insulating material (2) It is easy to maintain and easy to dismantle and handle.

Fifth, it is possible to automate the manufacturing process of the adhesive tape 10 through the adhesive tape manufacturing apparatus 100 is capable of mass production and has an excellent effect of mass-producing high quality products.

That is, the coating adhesive liquid 12a may be uniformly distributed on both sides of the nonwoven fabric 11 through the first pressing step S2 by the rolling roller 123, and may be rapidly heated by the high temperature heat of the heating wire 131. The coating adhesive liquid layer 12 can be implemented, and the division through the cutting member 132 is automatically performed, which can easily mass-produce a high-quality product, and also has an excellent effect of further accelerating the speed of product production. .

In addition, the adhesive tape 10 through the second pressing step (S5) by the extrusion roller 133 can have a flexibility to facilitate the final commercialization through the rotating member 150, the outer shell work of the heat insulating material (2) There is a beneficial effect that can proceed more easily.

Claims (7)

A nonwoven fabric 11 wound around the outer periphery of at least one heat insulating material 2 for insulating and cooling the to-be-protected body 1, and a coating adhesive liquid layer 12 which is applied to both surfaces of the nonwoven fabric 11 and then dried by heating. The coating is formed on the coating adhesive liquid layer 12 and is present in a liquid state, the adhesive comprising a liquid adhesive liquid layer 13 which is dry-bonded at room temperature when the nonwoven fabric 11 is wound on the heat insulating material 2 In the tape (10); Coating adhesive solution 12a for implementing the coating adhesive solution layer 12, 80 ~ 90% of Ethylene-Vinyl Acetate copolymer (EVA) adhesive with good chemical affinity and thermosetting property, 5 to 10% of an acrylic acid ester binder having good penetration, chemical stability and water resistance to the nonwoven fabric 11, Magnesium Chloride Flame Retardant 5-10% 0.1 to 0.5% of a dispersant for dispersing the ethylene super bico-polima adhesive, the acrylic acid ester binder, and the magnesium chloride flame retardant to be uniformly mixed with each other; The dispersant comprises 0.1 to 0.5% of a silicone resin antifoaming agent that suppresses bubbles or bubbles that may be generated in the process of mixing the ethylene chobico-polima adhesive, the acrylic acid ester binder, and the magnesium chloride flame retardant. The adhesive tape 10 characterized by the above-mentioned. Liquid adhesive liquid (13a) for implementing the liquid adhesive liquid layer 13, 80 ~ 90% of Ethylene-Vinyl Acetate copolymer (EVA) adhesive with good chemical affinity and thermosetting property, 5 to 10% of an acrylic acid ester binder having good penetration, chemical stability and water resistance to the nonwoven fabric 11, Magnesium Chloride Flame Retardant 5-10% 0.1 to 0.5% of a dispersant for dispersing the ethylene super bico-polima adhesive, the acrylic acid ester binder, and the magnesium chloride flame retardant to be uniformly mixed with each other; 0.1 to 0.5% of a silicone resin antifoaming agent that suppresses bubbles or bubbles that may be generated in the process of mixing the ethylene chobico-polima adhesive, the acrylic acid ester binder, and the magnesium chloride flame retardant by the dispersant; Adhesive tape (10), characterized in that it comprises a 0.1 to 0.9% anti-spill agent that provides a viscosity so that it does not flow down evenly distributed on the coating adhesive liquid layer (12). The method according to claim 1 or 2, The flame retardant adhesive tape (10), characterized in that the antimony oxide 5-10% having a resistance to the thermal power. Primary nonwoven fabric immersion step (S1) to immerse in the coating adhesive liquid 12a while unfolding the nonwoven fabric 11 wound in a roll (ROLL) shape, and A primary pressing step (S2) of uniformly compressing the nonwoven fabric 11 coated with the coating adhesive liquid 12a by passing it through a pair of rolling rollers 123; A heating step of implementing a coating adhesive liquid layer 12 by heating and drying the coating adhesive liquid 12a uniformly pressed on both sides of the nonwoven fabric 11 at a temperature of 75 to 100 ° C. for 30 to 50 seconds ( S3), A cutting step (S4) of cutting and cutting the nonwoven fabric 11 on which the coating adhesive liquid layer 12 is implemented, as desired; A second crimping step (S5) for providing flexibility by passing the nonwoven fabric 11 cut and cut to a desired width between the pair of extrusion rollers 133; A second nonwoven fabric immersion step (S6) of immersing the plurality of nonwoven fabrics 11 into the liquid adhesive liquid 13a to uniformly implement the liquid adhesive liquid layer 13 on the coating adhesive liquid layer 12; Adhesive tape manufacturing method characterized in that it comprises a packaging step (S7) of wrapping the non-woven fabric (11) implemented in the liquid adhesive liquid layer (13) a plurality of times in a roll shape to be protected from the outside air. A support shaft 111 positioned on the lower mold 110 and inserted into the center of the nonwoven fabric 11 wound in a roll shape and rotated a plurality of times, A first submersion tank 121 positioned on the upper frame 120 extending from the lower frame 110 and storing the coating adhesive solution 12a; A support roller 122 installed on the upper frame 120 in front of the first submersion tank 121 and smoothly rotating the nonwoven fabric 11 released through the rotation of the support shaft 111; It is installed on the upper frame 120 of the rear end of the first immersion tank 121 and pressed so that the coating adhesive solution 12a applied to both sides of the nonwoven fabric 11 is uniformly distributed via the first immersion tank 121. A pair of rolling rollers 123 and The heating wire arranged on the horizontal frame 130 to heat-dry the coating adhesive solution 12a uniformly coated on both sides of the nonwoven fabric 11 by the pair of rolling rollers 123 to realize the coating adhesive layer 12. 131, A plurality of cutters 132a intermittently cut and cut the nonwoven fabric 11 on which the coating adhesive liquid layer 12 is implemented is installed on the horizontal frame 130 at the rear end of the heating wire 131. The cutting member 132 is set to, It is provided on the rear end of the horizontal frame 130 and comprises a pair of extrusion rollers 133 for pressing and outputting the flexible non-woven fabric 11 to the desired width by the cutting member 132 to be flexible (FLEXIBLE). Adhesive tape manufacturing apparatus 100, characterized in that. The method of claim 5, A second immersion tank 140 storing the liquid adhesive solution 13a for implementing the liquid adhesive solution layer 13 on the coating adhesive solution layer 12 of the nonwoven fabric 11 drawn out from the extrusion roller 133; , The adhesive tape further comprises a rotating member 150 which is immersed in the second immersion tank 140 to wind the adhesive tape 10 having the liquid adhesive liquid layer 13 implemented in a roll shape a plurality of times. Manufacturing apparatus 100. The method of claim 5, Load the nonwoven fabric 11 placed on the first immersion tank 121 and the second immersion tank 140 so that the nonwoven fabric 11 is submerged in the coating adhesive liquid 12a and the liquid adhesive liquid 13a. Adhesive tape manufacturing apparatus 100, characterized in that further comprises a cylinder (160).