KR102131501B1 - Liner tube and its manufacturing method - Google Patents

Abstract

In the liner tube according to an embodiment of the present invention, the repair member produced by arranging the fibers in parallel or in the negative direction; A coating film laminated through a thermocompression coating on the repair member and a tape adhered through a thermocompression coating to serve to connect both ends of the repair member to which the coating film is laminated, and the tape includes: , It is possible to provide a liner tube, characterized in that the woven fabric.

Description

Liner tube and its manufacturing method

The present invention relates to a liner tube of the present invention and a method for manufacturing the same, and more particularly, to a liner tube manufactured for the front or partial repair of a tube by heat-pressing a film on a nonwoven fabric and a method for manufacturing the same.

In the case of the existing liner tube, when making a shape into a cylinder, a problem occurs in which a vulnerable part of the product due to a needle is generated in the nonwoven fabric by using sewing.

In order to improve this, the reinforced film was thickly heat-sealed and sealed to reinforce the vulnerable part, but the reinforced part was harder and less flexible than other places.

In particular, the smaller the tube diameter, the greater the impact of the problem.

That is, when the flexibility is poor, the shape of the tube is deformed to a right angle or a streamlined shape, and thus cannot be easily repaired and deteriorated.

Therefore, there is a need for technical development to improve this.

As a conventional technique, Korean Patent Registration No. 10-0309088 has been proposed.

The present invention designed to solve the above problems is to provide a liner tube and a method for manufacturing the same, which are manufactured for the entire surface or partial repair of a tube in which a nonwoven fabric is thermally compressed on a film.

In the liner tube according to the first embodiment of the present invention for solving the above problems, the repair member produced by arranging the fibers in parallel or in the negative direction; A coating film laminated through a thermocompression coating on the repair member and a tape adhered through a thermocompression coating to serve to connect both ends of the repair member to which the coating film is laminated, and the tape includes: , Characterized by being served in the form of a fabric.

In addition, a method of manufacturing a liner tube having no vulnerable area by producing a tape capable of being adhered to a repair member or a coating film, the method comprising: (1) arranging fibers in a parallel or negative direction to produce a repair member; (2) laminating a coating film on the repair member through thermal compression coating; (3) cutting the coating film to a size that can be wrapped around the inner diameter of the pipe to which the coated repair member is applied; (4) manufacturing a tape and (5) tapping through a thermocompression coating with tape so that both ends of the cut are connected.

In addition, in the liner tube according to the second embodiment of the present invention, it is manufactured in a cylindrical shape to connect both ends of a repair member and a repair member, which are produced by arranging fibers in parallel or in a negative direction, and heat-pressed. It includes a tape to be adhered through the coating, and includes a tape, characterized in that the tape is woven in the form of a fabric.

In addition, a method of manufacturing a liner tube having no vulnerable portion by manufacturing a tape that can be adhered to a repair member, comprising the steps of: (a) arranging fibers in a parallel or negative direction to produce a repair member; (B) cutting the size to be wrapped around the inner diameter of the pipe to be applied to the repair member; (c) manufacturing a tape in a cylindrical shape, and (d) tapping through a thermocompression coating with a tape around the entire circumference so that the cut ends of the repair member are connected.

In addition, in the liner tube according to the third embodiment of the present invention, the fibers are arranged in parallel or in the negative direction and are manufactured in a cylindrical shape to be attached to the outer circumferential surfaces of the repairing member and the repaired member, which are manufactured in a cylindrical shape, and thermally compressed. It includes a tape to be adhered through the coating, the tape is characterized in that served in the form of a fabric.

In addition, it may further include a reinforcing film for sealing by heat-pressing the tapered portion.

In addition, in a method of manufacturing a liner tube having no vulnerable portion by manufacturing a tape that can be adhered to a repair member, (i) fibers can be arranged in parallel or in an irregular direction to wrap around the inner diameter of a tube to which the repair member is applied. Producing a cylindrical shape having a size; (Ii) a step of manufacturing a tape in a cylindrical shape and (i) a step of tapping through a thermocompression coating with a tape around the entire circumference of the repair member.

In addition, after the step (iii), a step of thermally compressing a reinforcing film on the outer peripheral surface of the tape may be further included.

In addition, in the liner tube according to the first, second, and third embodiments of the present invention, the thermal compression coating, yarn coating method, spread coating, immersion method, calendering, extrusion coating (laminating), film adhesion method It is characterized by applying one of the methods.

In addition, in the liner tube according to the first, second and third embodiments of the present invention, the tape includes a yarn and an accessory material, the yarn is a core yarn, and the member material is a material that can adhere to the yarn Characterized in that it comprises one or more of LDPE, LLDPE, HDPE, COPP, EMA, PET, PU, PE, PP, EVA, silicone.

In addition, in the liner tube according to the first, second, and third embodiments of the present invention, the tape may include at least one of LDPE, LLDPE, HDPE, COPP, EMA, PET, PU, PE, PP, EVA, and silicone. It characterized in that it is produced, including.

In addition, in the method of manufacturing the liner tube according to the first, second, and third embodiments of the present invention, the thermocompression coating is a yarn coating method, a spread coating, dipping method, calendering, extrusion coating (laminating), film It is characterized by applying one of the adhesion methods.

In addition, in the method of manufacturing the liner tube according to the first, second, and third embodiments of the present invention, the step of manufacturing the tape includes: a tape manufacturing yarn and a material preparation step; The step of adhering the subsidiary material to the yarn and serving in a fabric form, the yarn is a core yarn, and the subsidiary material is LDPE, LLDPE, HDPE, COPP, EMA, PET, PU, PE, PP, EVA, Characterized in that it comprises at least one of the silicone.

In addition, in the method of manufacturing the liner tube according to the first, second, and third embodiments of the present invention, the step of manufacturing the tape includes LDPE, LLDPE, HDPE, COPP, EMA, PET, PU, PE, PP, Characterized in that it comprises a step of serving in the form of fabric, including at least one of EVA, silicone.

In the liner tube according to the embodiment of the present invention, a weak portion is not generated, and a portion to be reinforced may be formed less than the existing one.

In addition, as the reinforcing portion is formed less, the reinforcing material may not be formed thick.

In addition, the flexibility is improved than the existing one, and it can be easily applied to the shape of a curved tube.

In addition, the production time of the liner tube can be shortened, and the cost is reduced.

1 is a view showing a cross-section of a repair member with a coated film laminated in the configuration of the liner tube according to the first embodiment of the present invention.
2 is a view for explaining the process of manufacturing the liner tube according to the first embodiment of the present invention.
3 is a view showing a cross section of the liner tube according to the first embodiment of the present invention.
4 is a flowchart specifically showing the manufacturing process of FIG. 2.
5 is a view for explaining the process of manufacturing the liner tube according to the second embodiment of the present invention.
6 is a view showing a cross-section of a liner tube according to a second embodiment of the present invention.
7 is a flowchart specifically showing the manufacturing process of FIG. 5.
8 is a view for explaining the process of manufacturing the liner tube according to the third embodiment of the present invention.
9 is a view showing a cross section of a liner tube according to a third embodiment of the present invention.
10 is a flowchart specifically showing the manufacturing process of FIG. 8.

Hereinafter, the description of the present invention with reference to the drawings is not limited to a specific embodiment, and various conversions may be applied and various embodiments may be provided. In addition, it should be understood that the contents described below include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention.

In the following description, terms such as first and second are terms used to describe various components, and are not limited in meaning to themselves, and are used only to distinguish one component from other components.

The same reference numerals used throughout this specification denote the same components.

The singular expression used in the present invention includes the plural expression unless the context clearly indicates otherwise. In addition, terms such as “include”, “have” or “have” described below are intended to designate the existence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification. It should be interpreted and understood to not preclude the existence or addition possibility of one or more other features, numbers, steps, actions, components, parts or combinations thereof.

Hereinafter, a liner tube according to an embodiment of the present invention and a manufacturing method thereof will be described in detail with reference to FIGS. 1 to 10.

1 is a view showing a cross-section of a repair member 10 with a coating film 20 laminated in the configuration of the liner tube according to the first embodiment of the present invention. 2 is a view for explaining the process of manufacturing the liner tube according to the first embodiment of the present invention. 3 is a view showing a cross section of the liner tube according to the first embodiment of the present invention. 4 is a flowchart specifically showing the manufacturing process of FIG. 2.

First, referring to FIGS. 1 and 2, the liner tube according to the first embodiment of the present invention may include a repair member 10, a coating film 20 and a tape 30.

The liner tube of the present invention is a non-excavation repair liner that is provided on the inner circumferential surface of the pipe instead of replacing it as the old water pipes or pipes (pipes) through which fluids installed in other exteriors buried in the ground age.

At this time, when the liner tube of the present invention is manufactured in a felt form to fit around the tube, the tape 30 of the present invention is prepared in contrast to the existing one in which a fragile portion occurs by connecting the repairing member 10 using a lockstitch. It is possible to prevent the vulnerable portion from being formed, and accordingly, the thickness of the liner tube is significantly thinned, so that large curvature does not occur, so that the flow of the fluid may not be disturbed.

Specifically, the repair member 10 may be made of a non-woven fabric or a fiber series, in which fibers are arranged in parallel or in an undirected direction.

That is, the repair member 10 may be formed of a material having good flexibility.

The non-woven fabric produced by using the above-described method of inspecting the needle of the nonwoven fabric is most suitable, but is not limited thereto, and it is sufficient to use one that produces a thickness suitable for the liner tube.

In addition, there are other types of felt, which are fabrics made of animal hair using a milling property such as moisture, heat, pressure, etc. When water, heat, pressure, etc. are applied to the animal hair, fibers are entangled and reduced due to milling properties. It was made like this using cloth.

Therefore, felt is mainly used when making a hat or rug that requires heat retention, and thus can be applied to the liner tube of the present invention.

The material is not limited to the above, and a material that is suitable for application as a non-dig repair liner is sufficient.

Hereinafter, the repair member 10 will be described as a non-woven fabric.

Next, the coating film 20 is to be laminated by thermal compression coating on the repair member 10. In this case, the thermocompression coating may be one of a yarn coating method, a spread coating, an immersion method, a calendering, an extrusion coating (laminating), and a film adhesion method.

When describing some of the above methods, calendaring is a molding method in which a sheet or film is continuously produced by rolling raw materials between two or more rolls rotating in opposite directions.

In the present invention, it can be used when laminating the coating film 20 to the repair member 10, wherein the coating film 20 may be a plastic having the properties of plastic rolling by physical force.

As the type, amorphous resins such as PVC, ABS, PU, SBR, CPE, and NR resins can be used.

Melt extrusion is a molding method in which a sheet or film is continuously produced by using an extruder equipped with two cold screws having a co-rotating function for a polymer fillet.

In the present invention, it can be used when laminating the coating film 20 on the repair member 10. At this time, when the PE resin is expanded and cooled by heat of the resin, it shrinks as it cools, causing appearance distortion. In order to lower the extrusion temperature, a primer having interlayer adhesion to the PE resin may be used.

In addition, the same effect can be achieved by coextrusion with an acrylic modified resin with a low melting temperature and good adhesion with PE.

In addition, corona treatment or ozone treatment can improve the adhesion of the surface and lower the extrusion temperature.

That is, the content of lowering the extrusion temperature is a configuration for preventing deformation when the coating film 20 is laminated on the repair member 10.

As the material of the coating film 20, amorphous resins such as PVC, ABS, PU, SBR, CPE, and NR resins can be used.

Melt pressing is a molding method in which a polymer is placed between a flat metal foil (heat transfer plate), and a sheet or film is continuously produced by pressing with a hydraulic device.

In the present invention, the polymer may be laminated by being replaced with a repair member 10 and a coating film 20.

In the present invention, it can be used when laminating the coating film 20 to the repair member 10. As the material of the coating film 20, amorphous resins such as PVC, ABS, PU, SBR, CPE, and NR resins can be used. Can be used.

The coating film 20 may be laminated using the thermal compression coating method as described above, but the coating film 20 may be laminated to the repair member 10 by employing a high-frequency welding or ultrasonic welding method.

In the following description, it will be described as laminating by applying a thermal compression coating.

It is preferable to apply heat for 5 to 8 seconds at a temperature of 110 to 120°C during the thermal compression coating.

That is, when heating at less than 5 seconds at less than 110 ℃, there is a problem that adhesion may not occur, and when heated for more than 8 seconds at a temperature exceeding 120 ℃, the coating film 20 melts and is useless. Can be

Therefore, it is preferable to apply heat for 5 to 8 seconds at a temperature of 110 to 120°C during thermal compression coating.

The tape 30 of the present invention serves to connect the both ends of the coated repair film 20 described above to make the cut repair member 10 cylindrical.

After attaching the connecting portions at both ends, a predetermined heat (about 100°C) may be applied to increase the bonding force.

That is, the tape 30 may apply the thermal compression coating method described above for the method of laminating the coating film 20 when the coating film 20 is adhered to the laminated repair member 10, so a detailed description is omitted. Do it.

At this time, the tape 30 includes a yarn and an accessory material, the yarn is a core thread, and the accessory material is LDPE (Low Density Polyethylene), LLDPE (Linear low-density polyethylene), HDPE (high density polyethylene), COPP (COPOLYMER polypropylene), Select one or more of amorphous resins and silicones such as ethylene (ethyl ethylene acrylate), ethylene (polyethylene terephthalate), polyurethane (PU), polyethylene (PE), polypropylene (PP), and ethylene-vinyl acetate copolymer (EVA) Can.

Specifically, the core yarn is a flame-retardant yarn-coated fabric, and can obtain a desired strength depending on the type of yarn, and has an advantage of controlling strength and adhesion according to the structure of the fabric and knitted fabric.

At this time, the core resin of the present invention is coated with an adhesive resin such as PU, EVA, hot melt, and the like.

In addition, the tape 30 may be fabricated in the form of a fabric, and may be produced through a randomly input programming depending on the type of loom or knitting machine.

The reason why the fabric is fabricated as described above is that it is the best form to save cost because the gap disappears while melting.

Another embodiment of the tape 30 is LDPE (Low Density Polyethylene), LLDPE (Linear low-density polyethylene), HDPE (high density polyethylene), COPP (COPOLYMER polypropylene), EMA (Ethylene Methyl Acrylate), PET (Polyethylene terephthalate) , PU (Polyurethane), PE (Polyethylene), PP (polypropylene), and amorphous resins such as one or more of silicone can be selected to serve as a fabric.

Next, referring to FIGS. 2 and 4, a tape 30 capable of being adhered to the repair member 10 or the coating film 20 according to the first embodiment of the present invention is manufactured to produce a liner tube having no weak spots. The method is to fabricate the repair member 10 by arranging the fibers in parallel or in the negative direction (S10), and laminating the coating film 20 through the thermocompression coating on the repair member 10 (S20), Cutting the coating film 20 to a size that can be wrapped around the inner diameter of the pipe to which the repair member 10 to which the lamination is applied (S30), manufacturing the tape 30 (S40), and both ends of the cut It may include a step (S50) of taping through the heat compression coating with a tape 30 to be connected.

Specifically, step S10 refers to a process produced when the repair member 10 is a non-woven fabric, and there are various types of non-woven fabrics, and among them, non-woven fabrics produced by a needle punching technique are most suitable, but not limited thereto.

In the case of felt, it may be replaced with a step of manufacturing the repair member 10 through the milling property of moisture, heat, pressure, etc. on the animal hair.

Step S20 is a step of laminating the coating film 20 to the repair member 10, and is performed by thermal compression coating. Yarn coating method, spread coating, dipping method, calendering, extrusion coating (laminating), One of the film adhesion methods can be applied.

In the case of lamination, it can be divided into the case of using the film and the case of using the resin itself. In the present invention, since the coating film 20 is used, extrusion coating (laminating) laminating using heat may be most suitable.

However, the present invention is not limited thereto, and one of the yarn coating method, spread coating, immersion method, calendering, and film adhesion method may be used.

Step S30 is a step of cutting the coated film 20 to a size that can be wrapped around the inner diameter of the pipe to be applied to the laminating repair member 10, the size to be cut according to the diameter of the pipe to be applied may be different.

At this time, as a cutter, it can be cut using a small head or scissors.

In addition, after step S30 may further include a step of tube cutting the repaired member 10 and the seam sealing step according to the tube.

The seam sealing step can be performed using an extrusion method.

The step S40 is a step of manufacturing the tape 30, the step of preparing the tape 30 and preparing the material and the step of providing the material to the yarn in the form of a fabric or a knitted fabric, and the member material to the yarn coated with adhesive resin It may include the step of coating and serving in the form of a fabric.

The yarn is a core yarn, and the material is LDPE (Low Density Polyethylene), LLDPE (Linear low-density polyethylene), HDPE (high density polyethylene), COPP (COPOLYMER polypropylene), EMA (Ethylene Methyl Acrylate), PET (Polyethylene terephthalate) ), PU (Polyurethane), PE (Polyethylene), PP (polypropylene), and may be selected and include one or more of amorphous resin and silicone.
In the step of coating the member material on the yarn coated with an adhesive resin, an adhesive resin is coated on the core sign yarn to coat the member material on the yarn surface.
Step of serving in the form of a fabric As described above, the yarn coated with the material can be served in the form of a fabric. As the tape 30 is placed in the form of a fabric as described above, the tape 30 may be melted by thermal compression and thus be bonded to the coating film to function as an adhesive.

Step S50 is a step of taping through the thermocompression coating with the tape 30 around the front end so that both cut ends of the repair member 10 are connected, and the tape 30, which was in the form of fabric, is melted and adhered by heat and waterproof. Gives effect.

Hereinafter, a liner tube according to a second embodiment of the present invention and a method of manufacturing the same will be described in detail with reference to FIGS. 5 to 7.

5 is a view for explaining the process of manufacturing the liner tube according to the second embodiment of the present invention. 6 is a view showing a cross-section of a liner tube according to a second embodiment of the present invention. 7 is a flowchart specifically showing the manufacturing process of FIG. 5.

Next, referring to FIGS. 5 to 7, a method of manufacturing a liner tube having no vulnerable portion by manufacturing a tape 30 capable of being adhered to a repair member 10 according to a second embodiment of the present invention is a method in which fibers are parallel or Arranging in the negative direction to produce the repair member 10 (S100), cutting the repair member 10 to a size to be wrapped around the inner diameter of the pipe to be applied (S200), tape 30 It may include a step (S400) of manufacturing a cylindrical shape (S300) and a step (S400) of the circumferential front surface with a tape 30 through a thermocompression coating so that both cut ends of the repair member 10 are connected.

Specifically, step S100 is the same as step S10 of the method for manufacturing a liner tube having no vulnerable part because a tape 30 capable of being adhered to the repair member 10 or the coating film 20 according to the first embodiment is produced. Therefore, detailed description will be omitted.

Step S200 is a step of cutting to a size that can be wrapped around the inner diameter of the pipe to be applied, the size to be cut may vary depending on the diameter of the pipe to be applied.

In addition, after step S200, a step of tubing the repaired repair member 10 and a step of sealing the seam according to the tube may be further included.

The seam sealing step can be performed using an extrusion method.

Step S300 is a step of manufacturing the tape 30 in a cylindrical shape, a step of preparing the tape 30 and preparing the material and the step of providing the material to the yarn in the form of a fabric or knitted fabric, and adhering the material to the yarn It may include a step and serving in the form of fabric.

The yarn is a core yarn, and the material is LDPE (Low Density Polyethylene), LLDPE (Linear low-density polyethylene), HDPE (high density polyethylene), COPP (COPOLYMER polypropylene), EMA (Ethylene Methyl Acrylate), PET (Polyethylene terephthalate) ), PU (Polyurethane), PE (Polyethylene), PP (polypropylene), such as amorphous resin and one or more of the silicone may be selected.

Another embodiment of the tape 30 is LDPE (Low Density Polyethylene), LLDPE (Linear low-density polyethylene), HDPE (high density polyethylene), COPP (COPOLYMER polypropylene), EMA (Ethylene Methyl Acrylate), PET (Polyethylene terephthalate) , PU (Polyurethane), PE (Polyethylene), PP (polypropylene) and amorphous resins such as one or more of silicone can be selected and served in the form of fabric.

At this time, since the method of manufacturing the tape 30 in a cylindrical shape is generally made by applying a method of manufacturing fibers, a detailed description will be omitted.

Step S400 is a step of taping through the hot pressing coating with the tape 30 around the circumferential surface so that the cut ends of the repair member 10 are connected, the tape 30, which was in the form of fabric, is melted by heat. Waterproof coating effect can be obtained in general without applying the coating film 20.

A method of manufacturing a liner tube having no vulnerable portion by manufacturing a tape 30 that can be adhered to the repair member 10 according to the second embodiment is a repair member 10 and a tape 30 described in the liner tube configuration ), but in the second embodiment, the tape 30 is manufactured in a cylindrical shape as described above, and there is a difference only in that it is used to simultaneously serve as the coating film 20. Description is omitted.

Hereinafter, a liner tube according to a third embodiment of the present invention and a manufacturing method thereof will be described in detail with reference to FIGS. 5 to 7.

8 is a view for explaining the process of manufacturing the liner tube according to the third embodiment of the present invention. 9 is a view showing a cross section of a liner tube according to a third embodiment of the present invention. 10 is a flowchart specifically showing the manufacturing process of FIG. 8.

Next, referring to FIGS. 8 to 10, a method of manufacturing a liner tube having no vulnerable area by manufacturing a tape 30 capable of being adhered to a repair member 10 according to a third embodiment of the present invention is a method in which fibers are parallel or Arranging in the negative direction to manufacture the cylindrical member to a size that can be wrapped around the inner diameter of the pipe to which the repair member 10 is to be applied (S1000), manufacturing the tape 30 in a cylindrical form (S2000), repair member It may include the step (S3000) of the circumferential surface of the (10) taped to the tape 30 through thermal compression coating (S3000).

Specifically, step S1000 is the same as step S10 of the method for manufacturing a liner tube having no vulnerable part because a tape 30 capable of being adhered to the repair member 10 or the coating film 20 according to the first embodiment is produced. One, the repair member 10 of the liner tube of the third embodiment is made of a cylindrical shape, and the seam portion can be manufactured with a structure omitted, and has a diameter of a size that can be wrapped around the inner diameter of the pipe to be applied. The diameter of the cylinder to be manufactured may vary depending on the diameter.

At this time, since the method of manufacturing the repair member 10 in a cylindrical shape is generally made by applying a method of manufacturing fibers, a detailed description will be omitted.

Step S2000 is a step of manufacturing the tape 30 in a cylindrical shape, preparing the tape 30 for the yarn and the material preparation step, and providing the member material to the yarn in the form of a fabric or knitted fabric, and adhering the material to the yarn It may include a step and serving in the form of fabric.

The yarn is a core yarn, the LDPE (Low Density Polyethylene), LLDPE (Linear low-density polyethylene), HDPE (high density polyethylene), COPP (COPOLYMER polypropylene), EMA (Ethylene Methyl Acrylate), PET (Polyethylene terephthalate), One or more of amorphous resins such as PU (Polyurethane), PE (Polyethylene), and PP (polypropylene) and silicone may be selected to serve as a fabric.

Another embodiment of the tape 30 is LDPE (Low Density Polyethylene), LLDPE (Linear low-density polyethylene), HDPE (high density polyethylene), COPP (COPOLYMER polypropylene), EMA (Ethylene Methyl Acrylate), PET (Polyethylene terephthalate) , PU (Polyurethane), PE (Polyethylene), PP (polypropylene) and amorphous resins such as one or more of silicone can be selected and served in the form of fabric.

Step S3000 is a step of taping the circumferential front surface of the repair member 10 with a tape 30 through thermal compression coating, and the cylindrical tape produced in step S2000 on the repair member 10 manufactured in a cylindrical shape in step S1000. This is the step of bonding 30.

At this time, it is possible to obtain a waterproof effect without applying the coating film 20 and the reinforcing film 40 of the first embodiment, but for a reliable waterproofing effect, the reinforcing film 40 on the outer circumferential surface of the tape 30 is thermally compressed. It is preferable to proceed further.

At this time, the thermocompression method using the same method as the coating film 20 described in the first embodiment, the reinforcing film 40 is thermally compressed on the front surface of the tape 30, and the material may be the same as the coating film 20. It may be, and the coating may be performed on the entire surface of the circumference that is the portion to which the cylindrical tape 30 is attached.

A method of manufacturing a liner tube having no vulnerable portion by manufacturing a tape 30 that can be adhered to the repair member 10 according to the third embodiment is a repair member 10 and a tape 30 described in the liner tube configuration ), but the repair member 10 and the tape 30 in the third embodiment differ only in that they are manufactured and used in a cylindrical shape as described above, so detailed description of each component will be omitted.

In the liner tube according to the embodiment of the present invention described above, a weak portion is not generated, and a portion to be reinforced may be formed less than the existing one.

In addition, as the reinforcing portion is formed less, the reinforcing material may not be formed thick.

In addition, the flexibility is improved than the existing one, and it can be easily applied to the shape of a curved tube.

In addition, the time of manufacturing the liner tube may be shortened by using a tape 30 rather than a sewn connection to connect both ends.

In addition, the cost is reduced and it is reasonable in economic terms.

The embodiments of the present invention have been described with reference to the accompanying drawings, but a person having ordinary knowledge in the technical field to which the present invention pertains may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. You will understand. Therefore, the above-described embodiment is illustrative in all respects and is not limiting.

10: repair member
20: coating film
30: tape
40: reinforcement film

Claims (14)

A repair member made of a non-woven fabric or a fiber series in which fibers are arranged in a parallel or irregular direction;
A coating film laminated on the repair member through thermal compression coating and
The coating film is laminated and includes a tape that is adhered through a thermocompression coating to serve to connect both ends of the cut repair member,
The tape,
It includes a yarn and a subsidiary material, coated with a subsidiary material on a yarn coated with an adhesive resin, and manufactured by operating the raw material coated with the subsidiary material in the form of a fabric, and functions as an adhesive while melting through thermal compression.
The tape,
In the heat compression coating, heat is applied for 5 to 8 seconds at a temperature of 110 to 120°C,
The yarn is a core yarn, and the subsidiary material includes one or more of LDPE, LLDPE, HDPE, COPP, EMA, PET, PU, PE, PP, EVA, and silicone.
In the method of manufacturing a liner tube having no vulnerable area because a tape that can be adhered to a repair member or a coating film is produced,
(1) manufacturing a repair member using a non-woven fabric or a fiber line in which fibers are arranged in a parallel or irregular direction;
(2) laminating a coating film on the repair member through thermal compression coating;
(3) cutting the coating film to a size that can be wrapped around the inner diameter of the pipe to which the coated repair member is applied;
(4) the step of producing the tape and
(5) including the step of taping through the heat compression coating with a tape so that both ends of the cut are connected,
The taping step,
In the heat compression coating, heat is applied to the tape for 5 to 8 seconds at a temperature of 110 to 120°C,
The step of manufacturing the tape,
Tape production yarn and material preparation stage;
Coating the subsidiary material on the yarn coated with an adhesive resin, and
Including the step of serving in the form of fabric,
The yarn is a core yarn, and the subsidiary material includes at least one of LDPE, LLDPE, HDPE, COPP, EMA, PET, PU, PE, PP, EVA, and silicone,
The tape is melted through thermal compression, the liner tube manufacturing method characterized in that the adhesive function.
A repair member made of a non-woven fabric or a fiber line in which fibers are arranged in parallel or irregular directions, and
It is manufactured in a cylindrical shape to connect both ends of the cut-out repair member, and includes a tape that is adhered through thermal compression coating.
The tape,
It includes a yarn and a subsidiary material, coated with a subsidiary material on a yarn coated with an adhesive resin, and manufactured by operating the raw material coated with the subsidiary material in the form of a fabric, and functions as an adhesive while melting through thermal compression.
The tape,
In the heat compression coating, heat is applied for 5 to 8 seconds at a temperature of 110 to 120°C,
The yarn is a core yarn, and the subsidiary material includes one or more of LDPE, LLDPE, HDPE, COPP, EMA, PET, PU, PE, PP, EVA, and silicone.
In the method of manufacturing a liner tube having no vulnerable area by manufacturing a tape that can be adhered to a repair member,
(a) manufacturing a repair member using a nonwoven fabric or a fiber line in which fibers are arranged in parallel or in an irregular direction;
(B) cutting to a size to wrap around the inner diameter of the pipe to which the repair member is applied;
(c) producing a tape in a cylindrical shape, and
(d) a step of tapping through a thermocompression coating with a tape around the entire circumference so that the cut ends of the repair member are connected,
The taping step,
In the heat compression coating, heat is applied to the tape for 5 to 8 seconds at a temperature of 110 to 120°C,
The step of manufacturing the tape,
Tape production yarn and material preparation stage;
Coating the subsidiary material on the yarn coated with an adhesive resin, and
Including the step of serving in the form of fabric,
The yarn is a core yarn, and the subsidiary material includes at least one of LDPE, LLDPE, HDPE, COPP, EMA, PET, PU, PE, PP, EVA, and silicone,
The tape is melted through thermal compression, the liner tube manufacturing method characterized in that the adhesive function.
Repair member manufactured in a cylindrical shape by a non-woven fabric or a fiber line in which fibers are arranged in a parallel or irregular direction, and
It is manufactured in a cylindrical shape to be attached to the outer circumferential surface of the cut-out repair member, and includes a tape adhered through a thermocompression coating,
The tape,
It includes a yarn and a subsidiary material, coated with a subsidiary material on a yarn coated with an adhesive resin, and manufactured by operating the raw material coated with the subsidiary material in the form of a fabric, and functions as an adhesive while melting through thermal compression.
The tape,
In the heat compression coating, heat is applied for 5 to 8 seconds at a temperature of 110 to 120°C,
The yarn is a core yarn, and the subsidiary material includes one or more of LDPE, LLDPE, HDPE, COPP, EMA, PET, PU, PE, PP, EVA, and silicone.
The method of claim 5,
A liner tube further comprising a reinforcing film that heat-seals and seals the taped portion.
In the method of manufacturing a liner tube having no vulnerable area by manufacturing a tape that can be adhered to a repair member,
(Iii) producing a cylindrical shape in a size that can wrap around the inner diameter of a pipe to which a repair member is applied with a non-woven fabric or a fiber line in which fibers are arranged in parallel or in an irregular direction;
(Ii) producing a tape in a cylindrical shape, and
(Iii) a step of tapping through the thermocompression coating with a tape around the entire circumference of the repair member,
The taping step,
During the heat compression coating, heat is applied to the tape for 5 to 8 seconds at a temperature of 110 to 120°C,
The step of manufacturing the tape,
Tape production yarn and material preparation stage;
Coating the subsidiary material on the yarn coated with an adhesive resin, and
Including the step of serving in the form of fabric,
The yarn is a core yarn, and the subsidiary material includes at least one of LDPE, LLDPE, HDPE, COPP, EMA, PET, PU, PE, PP, EVA, and silicone,
The tape is melted through thermal compression, the liner tube manufacturing method characterized in that the adhesive function.
The method of claim 7,
After the step (iii),
The liner tube manufacturing method further comprising the step of thermally compressing the reinforcing film on the outer peripheral surface of the tape.
The method according to any one of claims 1, 3, and 5,
The thermal compression coating,
Liner tube characterized by applying one of yarn coating method, spread coating, dipping method, calendering, extrusion coating (laminating), and film adhesion method.
delete delete The method according to any one of claims 2, 4, and 7,
The thermal compression coating,
A method of manufacturing a liner tube characterized by applying one of a yarn coating method, spread coating, dipping method, calendering, extrusion coating (laminating), and film adhesion method.
delete delete

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