KR101703894B1 - Forming device and its forming method of built skin agent for car using hot melt film - Google Patents

Forming device and its forming method of built skin agent for car using hot melt film Download PDF

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Publication number
KR101703894B1
KR101703894B1 KR1020150040335A KR20150040335A KR101703894B1 KR 101703894 B1 KR101703894 B1 KR 101703894B1 KR 1020150040335 A KR1020150040335 A KR 1020150040335A KR 20150040335 A KR20150040335 A KR 20150040335A KR 101703894 B1 KR101703894 B1 KR 101703894B1
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South Korea
Prior art keywords
hot melt
roller
hot
resin
drying
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KR1020150040335A
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Korean (ko)
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KR20160113929A (en
Inventor
이봉재
강난희
유채정
최수현
정지현
신진모
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주식회사 청하
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B29C65/405—Applying molten plastics, e.g. hot melt characterised by the composition of the applied molten plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to a molding apparatus for molding a car body using a hot melt film and a molding method using the same, and more particularly, to a molding apparatus using a hot melt film, which is manufactured through a hybrid oven and has improved adhesion performance and process efficiency, To a molding apparatus and a molding method for manufacturing the same.
A molding device for a motor vehicle interior skin using a hot melt film according to the present invention comprises a roller portion for melting a hot melt resin and applying the releasing material to a releasing paper, a drying portion for drying the hot melt resin to form a hot melt film, A cutting portion for cutting the bonded hotmelts film and the adherend to a predetermined size, and a pressing portion for molding the cut hotmelts film and the adherend, .
The method for molding a skin-protecting agent for automobiles using a hot-melt film according to the present invention includes a first step of melting a hot-melt resin, a second step of applying the molten hot-melt resin to a release paper to form a hot- A third step of adhering the film to the adherend, and a fourth step of compress-molding the hotmelt film and the adherend lapped through the third step.
The present invention relates to an apparatus for molding a skin material for automobile interior using a hot melt film and to a method for molding the same using an automotive skin agent using hot melt films having improved heat resistance, cold resistance, adhesiveness and thermal shock resistance There is an effect that can be done.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding device for molding a skin using a hot melt film and a molding method using the same,

The present invention relates to a molding apparatus for molding a car body using a hot melt film and a molding method using the same, and more particularly, to a molding apparatus using a hot melt film, which is manufactured through a hybrid oven and has improved adhesion performance and process efficiency, To a molding apparatus and a molding method for manufacturing the same.

In general, a hot melt is one of adhesives that exhibits an adhesive force when heated and melted, applied to various adhesives, cooled and solidified when used as a solvent-free adhesive having a solid content of 100% at room temperature, and is widely used in various fields. The hotmelt is cooled immediately after application and can be continuously operated, and the volumetric content is not generated so that the coating thickness can be easily controlled and evenly adjusted. There is no danger of fire, and generally the three components of the base polymer, And optionally an antioxidant, a plasticizer, a flame retardant and the like are mixed and used.

Such a hot-melt resin is not satisfactory in heat resistance, cold resistance, adhesiveness, thermal shock strength, and the like. Accordingly, there is a demand for development and processing of an effective hot-melt composition.

In the related art, a hot-melt composition for electronic components is disclosed in Korean Patent No. 10-0400876, but it discloses a hot-melt composition specialized for bonding an electronic product, so that it is difficult to apply the composition to various devices , The process is not efficient and the practical utilization is low.

Korean Patent No. 10-0400876 (September 24, 2003)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a composition capable of producing a hot melt film for use in an automotive skin material, The purpose is to provide.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems to be solved by the present invention, which are not mentioned here, As will be appreciated by those skilled in the art.

A molding device for a motor vehicle interior skin using a hot melt film according to the present invention comprises a roller portion for melting a hot melt resin and applying the releasing material to a releasing paper, a drying portion for drying the hot melt resin to form a hot melt film, A cut portion for cutting the bonded hotmelts film and the adhesive to a predetermined size, and a crimping portion for molding the cut hotmelts film and the adherend, .

The method for molding a skin-protecting agent for automobiles using a hot-melt film according to the present invention includes a first step of melting a hot-melt resin, a second step of applying the molten hot-melt resin to a release paper to form a hot- A third step of adhering the film to the adherend, and a fourth step of compress-molding the hotmelt film and the adherend lapped through the third step.

The present invention relates to an apparatus for molding a skin material for automobile interior using a hot melt film and to a method for molding the same using an automotive skin agent using hot melt films having improved heat resistance, cold resistance, adhesiveness and thermal shock resistance There is an effect that can be done.

1 is a schematic view of a molding apparatus for a motor vehicle interior using a hot melt film according to the present invention.
2 is a flowchart showing a method of molding a skin-protecting agent for a vehicle using a hot-melt film according to the present invention.
FIG. 3 is a flowchart showing a second step of the method for molding a skin material for an automobile using a hot-melt film according to the present invention.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings.

The present invention relates to a molding apparatus for efficiently molding a skin-protecting agent for automobiles using a hot-melt film, and will be described with reference to Fig. 1. First, the hot-melt resin A is melted, The roller unit 100 is formed.

Specifically, the roller unit 100 includes a first roller 110, a second roller 120, and a third roller 130.

First, the first roller 110 is provided with a plurality of heat lines at uniform intervals inside the surface.

More specifically, it is preferable that 4 to 10 heat lines arranged at equal intervals are provided parallel to the rotation axis of the first roller 110.

This is because the surface area of the first roller 110 is widened and the uniform heat transfer to the surface of the first roller 110 is performed.

If the hot line is configured to be perpendicular to the rotation axis of the first roller 110, since the length of the first roller 110 is increased, a plurality of heat lines are required, so that uniform heat transfer is difficult, It can fall.

In addition, when the number of the heat lines provided on the surface of the first roller 110 is less than four, it is difficult to uniformly transfer heat across the surface of the first roller 110, ), If the number of the hot wires is more than 10, sufficient heat transfer is possible, and the economic efficiency is lowered due to the use of the hot wire more than necessary.

Therefore, it is preferable that the roller is configured under the above conditions. This applies equally to the configuration of the second roller 120 which will be mentioned below.

The second roller 120 is disposed to be in close contact with the first roller 110 at a predetermined interval in parallel to the first roller 110 and is disposed inside the surface of the second roller 120 in the same manner as the surface of the first roller 110 A plurality of hot wires are uniformly provided.

Specifically, the second roller 120 is configured to be closely contacted with the first roller 110 at an interval enough to allow the hot melt resin A to melt and escape. More preferably, the second roller 120 is arranged parallel to the first roller 110 at an interval of 5 to 30 mm.

This is because when the hot melt resin A is melted between the first roller 110 and the second roller 120 and the release paper B passing under the first roller 110 and the second roller 120, The gap between the first roller 110 and the second roller 120 is adjustable so that the hot melt resin A melted on the first roller 110 and the second roller 120 are evenly applied.

 The first roller 110 and the second roller 120 heat the surface of the first roller 110 and the second roller 120 to a temperature of 255 to 280 DEG C through a hot line provided on the surface.

This is because the melting point of the hot melt resin (A) is formed at 160 to 180 DEG C, so that the first roller (110) and the second roller (120) are heated Thereby melting the hot melt resin (A).

At this time, when the surface temperature of the first roller 110 and the second roller 120 is less than 255 ° C. at the time of melting the hot melt resin A, the time required for the hot melt resin A to completely melt is short, The temperature of the first roller 110 and the temperature of the second roller 120 is lower than the temperature of the first roller 110 and the temperature of the second roller 120. As a result, Is higher than 280 ° C, carbonization of the hot melt resin (A) may be caused due to high temperature, resulting in a rapid deterioration of physical properties.

Next, the third roller 130 is provided below the first roller 110 and the second roller 120, and a plurality of hot wires are provided at uniform intervals within the surface.

Specifically, two to four heat lines are uniformly provided inside the surface of the third roller 130, and the surface of the third roller 130 is uniformly heated to a temperature of 190 to 210 ° C.

This is because when the molten hot melt resin A melts through the first roller 110 and the second roller 120 and is applied to the release paper B, The hot melt resin A applied to the release paper B is prevented from quenching and the temperature can be maintained.

At this time, if the temperature of the third roller 130 is less than 190 ° C, shrinkage may occur at the edge of the hot melt resin A. If the temperature is higher than 210 ° C, the molten hot melt resin A) may be increased and the process efficiency may be lowered.

Next, a drying unit 200 for forming the hot-melt film is formed by drying the hot-melt resin (A).

Specifically, the drying unit 200 may include a primary drying unit 210, a secondary drying unit 210, and a secondary drying unit 210 to efficiently dry the hot melt resin A coated on the releasing paper B in a conveyor manner in a short time, (220), and a tertiary drying unit (230).

Specifically, the primary drying unit 210 can be dried through microwave waves output at 2 to 8 kW.

This is because, if drying is performed in a short time in order to reduce the drying time of the hot melt resin (A) reaching the molten state, the hot melt resin (A) (2 to 8 kW) is irradiated to partially dry the hot melt resin (A) from the inside of the hot melt resin (A) in order to prevent damage to the hot melt resin (A).

Next, the secondary drying unit 220 can be dried with microwave waves output at 16 to 24 kW.

In order to dry the hot melt resin A partially dried through the primary drying unit 210, the high-power (16 to 24 kW) microwave, such as the condition of the secondary drying unit 220, It is possible to completely dry the hot melt resin (A) in a short time through a wave.

Finally, the tertiary drying unit 230 can be dried through a hot air heater.

This is for stabilizing the hot melt resin A which is completely dried in a short time through the primary drying part 210 and the secondary drying part 220 to be somewhat rigid so as to serve as a film.

The reason why the third drying unit 200 is formed is because the energy saving effect is 30 to 50% of that of the conventional drying drying method, and the heat drying method using only the hot air heater conventionally exerts heat only on the outside Since the inside is heated by radiation after the surface is heated, the drying using the microwave can penetrate into the inside of the material and the drying can be performed as a whole, so that the drying efficiency can be increased.

Furthermore, when the low-output microwave wave, the high-output microwave wave, and the hot air heater are sequentially dried in the third order, the drying efficiency can be maximized in a shorter time.

At this time, it is preferable that a microwave wave shielding section is further provided on the inlet and outlet of the drying section 200 where the hot melt resin A is introduced.

This is because it is uncertain whether the harmfulness of the electromagnetic waves generated from the microwave waves of the primary drying unit 210 and the secondary drying unit 220 is true or not, so that the harmfulness is prevented in advance.

Next, a release paper removing unit 300 for removing the release paper B of the hot melt film is formed.

The releasing paper removing unit 300 removes the release paper B attached to the bottom of the hot melt film formed through the drying unit 200 from the release paper B to a device provided in a roller form, And is separated from the hot melt film.

Next, a joining part 400 for joining together the hot melt film and the adherend (C) is formed.

Specifically, the joint portion 400 is configured such that the releasing paper B is separated from the hot-melt film, and the adherend C is joined to the bottom surface of the hot-melt film. The infrared ray (IR) lamp 410 may further include an infrared (IR) lamp to irradiate the hot melt film after the adherend (C) and the hot melt film are laminated.

This is because when the infrared ray (IR) is irradiated through the infrared (IR) lamp 410 after the hot melt film and the adherend C are joined together, the frequency of the infrared (IR) The infrared ray IR is strongly absorbed, and the hot-melt film is melted and lapped with the adherend (C) within an initial time.

At this time, as the adherend (C), a car interior material fabric, a composite material sheet, or the like can be used.

Next, a cutting portion 500 for cutting the lapped hot melt film and the adherend C to a predetermined size is formed.

The cutting portion 500 may be formed in any form so long as it can efficiently cut the hot-melt film bonded with the adherend C.

Next, a crimping portion 600 for forming the cut hot melt film and the adherend (C) is formed.

Specifically, the bonding part 600 is formed by pressing the adhesive agent (C) coated with the hot-melt film and a product to be surface-treated with the adhesive agent (C), followed by pressing in a hot press process.

Hereinafter, a molding method of a skin-covering agent for an automobile using the hot-melt film according to the present invention will be described.

First, in a first step (S10), the hot melt resin (A) is melted and applied to a release paper (B).

Specifically, the hot melt resin (A) to be melted in the first step (S10) comprises a polypropylene resin, polyethylene, an adhesive resin, and wax.

First, the polypropylene resin sheet has a melt flow index of 5 to 20 g / 10 min and a melting point of 160 to 180 ° C., and the polyethylene has a melt flow index of 5 to 30 g / 10 min and a melting point of 80 to 100 ° C. Is preferably used.

This is because, when the polypropylene resin and the polyethylene melt flow index do not satisfy the above conditions, it is difficult to control the thickness of the hot melt resin (A) to be applied upon application to the release paper (B) .

Next, the adhesive resin may be a urethane-based, epoxy-based, or acrylic-based resin.

Specifically, the adhesive resin may be selected from the group consisting of hydrides of petroleum hydrogen, hydrides of terpene resins, natural and modified resins, and derivatives of natural and modified resins. It can be used in accordance with the required adhesive force.

Next, the wax is used for improving intermixability of the above-mentioned polypropylene resin, polyethylene, and adhesive resin, and it is preferable to use any one of paraffin and polyethylene wax.

Next, the blending ratio for constituting the hot-melt resin (A) is preferably 0.15 to 0.25 parts by weight of the polyethylene, 0.05 to 0.15 parts by weight of the adhesive resin, 0.09 parts by weight.

This is to improve the adhesion strength characteristics and improve the heat resistance and thermal shock resistance when the film is formed into the adherend (C) after the film of the hot-melt resin (A) is formed. When the polyethylene is mixed at less than 0.15, the concentration of the polypropylene resin increases to increase the overall melting point of the hot melt resin (A), thereby increasing the melting temperature for processing, thereby increasing unnecessary energy consumption.

When the amount of the polyethylene exceeds 0.25 parts by weight with respect to 1 part by weight of the polypropylene resin, the meltability of the hot melt resin (A) increases when the release agent (A) is melted, And it may be difficult to exhibit sufficient adhesive strength.

If the adhesive resin is mixed in an amount of less than 0.05 part by weight based on 1 part by weight of the polypropylene resin, the adhesive strength of the hot melt adhesive may deteriorate after the formation of the hot melt film, When the adhesive resin is mixed in an amount exceeding 0.15 parts by weight, sufficient adhesive strength is already exhibited and the efficiency of the process may be lowered.

The method for melting the hot melt resin A in the first step S10 may be a method for melting the hot melt resin A between the first roller 110 and the second roller 120 provided in the roller unit 100, The resin (A) is passed and melted.

Specifically, when the hot melt resin (A) is placed between the first roller (110) and the second roller (120) where a temperature higher than the melting point of the hot melt resin (A) is formed, Is melted and falls downward.

 The hot melt resin A melted and dropped is applied between the first roller 110 and the second roller 120 on the releasing paper B being conveyed, The temperature of the molten hot melt resin (A) which is preheated to pass over the third roller (130) provided below the first roller (110) and the second roller (120) and applied on the release paper .

Next, in the second step S20, the hot-melt resin A applied to the release paper B is dried through the first step S10 to form a hot-melt film.

As shown in Fig. 3, in the second step S20, drying is performed through the primary drying step S21, the secondary drying step S22, and the tertiary drying step S23.

First, in the primary drying step (S21), 50 to 80% of the hot melt resin (A) is dried using microwave waves output at 2 to 8 kW.

Specifically, in the primary drying step (S21), the hot melt resin (A) is dried by about 50 to 80% through the primary drying part (210).

This is because, in order to reduce the drying time of the hot-melt resin (A) in a molten state, when the drying is performed in a short time, the hot-melt resin (A) is boiled, (2 to 8 kW) is irradiated to partially dry the inside of the hot melt resin (A) in order to prevent damage to the hot melt resin (A).

Next, in the secondary drying step (S22), 90 to 100% of the hot melt resin (A) is dried using microwave waves output at 16 to 24 kW.

Specifically, in the secondary drying step (S22), the hot melt resin (A) is dried by about 90 to 100% through the secondary drying part (220).

This is because, in order to dry the hot melt resin (A) which has been dried 50 to 80% through the primary drying step (S21), it is possible to dry the hot melt resin (A) in a short time through a high power (16 to 24 kW) A) can be completely dried.

Next, in the third drying step (S23), the hot-melt resin (A) is completely dried and stabilized by using a hot air heater.

Specifically, the tertiary drying step (S23) completely dries and secures the hot melt resin (A) through the tertiary drying part (230).

This is for stabilizing the hot-melt resin (A), which is completely dried in a short period of time through the primary drying step (S21) and the secondary drying step (S22), to be somewhat rigid so as to be able to function as a film.

Next, in a third step (S30), the release paper (B) is removed from the hot melt film.

Specifically, in the third step S30, the release paper B is removed from the hot melt film through the release paper removing unit 300.

The third step S30 is a step of removing the release paper B attached to the bottom surface of the hot melt film formed through the second step S20 so that the hot melt film and the release paper B are sequentially separated .

Next, in a fourth step (S40), the hot melt film is joined to the adherend (C).

Specifically, in the fourth step (S40), the hot melt film and the adhering agent (C) are joined together using the joint portion (400).

In the fourth step S40, the releasing paper B is separated from the hot-melt film, and the adherend C is attached to the bottom surface of the hot-melt film and irradiated with infrared (IR) (IR) is radiated after the hot melt film and the adherend (C) are joined together by completely laminating the hot melt film to the hot melt film The infrared ray (IR) is absorbed strongly due to a similar natural frequency, so that the hot-melt film is melted within the first time and is interlocked with the adherend (C).

At this time, as the adherend (C), a car interior material fabric, a composite material sheet, or the like can be used.

Next, in a fifth step (S50), the hot melt film laminated through the fourth step (S40) is cut.

Specifically, in the fifth step (S50), the hot melt film is cut through the cutting portion 500.

Finally, in the sixth step (S60), the cut hot melt film and the adherend (C) are compression-molded.

Specifically, in the sixth step S60, the adherend C coated with the hot-melt film is overlapped with the product to be surface-treated with the adherend C by using the crimping portion 600, And pressing and molding in a hot pressing step.

 In the following description, changes in the state of the hot melt resin (A) according to the temperature change of the first roller (110) and the second roller (120) are observed in a molding apparatus for a motor vehicle interior skin using a hot melt film according to the present invention Will be described in detail using an example.

[Example 1]

The temperature of the first roller 110 and the second roller 120 was set to 200 ° C and the temperature of the third roller 130 was set to 200 ° C to observe the melting state of the hot melt resin A.

[Example 2]

The temperature of the first roller 110 and the second roller 120 was set to 210 ° C and the temperature of the third roller 130 was set to 200 ° C to observe the melting state of the hot melt resin A.

[Example 3]

The temperature of the first roller 110 and the second roller 120 was set to 225 DEG C and the temperature of the third roller 130 was set to 200 DEG C to observe the melting state of the hot melt resin A. [

[Example 4]

The temperature of the first roller 110 and the second roller 120 was set to 240 ° C. and the temperature of the third roller 130 was set to 200 ° C. to observe the melting state of the hot melt resin A.

[Example 5]

The temperature of the first roller 110 and the second roller 120 was set to 254 ° C and the temperature of the third roller 130 was set to 200 ° C to observe the melting state of the hot melt resin A.

[Example 6]

The temperature of the first roller 110 and the second roller 120 was set to 260 ° C and the temperature of the third roller 130 was set to 200 ° C to observe the melting state of the hot melt resin A.

[Example 7]

The temperature of the first roller 110 and the second roller 120 was set to 275 DEG C and the temperature of the third roller 130 was set to 200 DEG C to observe the melting state of the hot melt resin A. [

[Example 8]

The temperature of the first roller 110 and the second roller 120 was set to 281 DEG C and the temperature of the third roller 130 was set to 200 DEG C to observe the melting state of the hot melt resin A. [

[Example 9]

The temperature of the first roller 110 and the second roller 120 was set to 293 DEG C and the temperature of the third roller 130 was set to 200 DEG C to observe the melting state of the hot melt resin A. [

[Example 10]

The temperature of the first roller 110 and the second roller 120 was set to 299 ° C and the temperature of the third roller 130 was set to 200 ° C to observe the melting state of the hot melt resin A.

[Example 11]

The temperature of the first roller 110 and the second roller 120 was set at 280 DEG C and the temperature of the third roller 130 was set at 167 DEG C to observe the melting state of the hot melt resin A. [

[Example 12]

The temperature of the first roller 110 and the second roller 120 was set at 280 DEG C and the temperature of the third roller 130 was set at 173 DEG C to observe the melting state of the hot melt resin A. [

[Example 13]

The temperature of the first roller 110 and the second roller 120 was set at 280 DEG C and the temperature of the third roller 130 was set at 180 DEG C to observe the melting state of the hot melt resin A. [

[Example 14]

The temperature of the first roller 110 and the second roller 120 was set at 280 DEG C and the temperature of the third roller 130 was set at 184 DEG C to observe the melting state of the hot melt resin A. [

[Example 15]

The temperature of the first roller 110 and the second roller 120 was set at 280 DEG C and the temperature of the third roller 130 was set at 188 DEG C to observe the melting state of the hot melt resin A. [

[Example 16]

The temperature of the first roller 110 and the second roller 120 was set to 280 ° C and the temperature of the third roller 130 was set to 193 ° C to observe the melting state of the hot melt resin A.

[Example 17]

The temperature of the first roller 110 and the second roller 120 was set at 280 DEG C and the temperature of the third roller 130 was set at 199 DEG C to observe the melting state of the hot melt resin A. [

[Example 18]

The temperature of the first roller 110 and the second roller 120 was set at 280 DEG C and the temperature of the third roller 130 was set at 205 DEG C to observe the melting state of the hot melt resin A. [

[Example 19]

The temperature of the first roller 110 and the second roller 120 was set at 280 ° C. and the temperature of the third roller 130 was set at 211 ° C. to observe the melting state of the hot melt resin A.

[Example 20]

The temperature of the first roller 110 and the second roller 120 was set to 280 DEG C and the temperature of the third roller 130 was set to 216 DEG C to observe the melting state of the hot melt resin A. [

[Example 21]

The temperature of the first roller 110 and the second roller 120 was set to 280 ° C and the temperature of the third roller 130 was set to 223 ° C to observe the melting state of the hot melt resin A.

The temperature of the first roller 110 and the temperature of the second roller 120 is changed to 200 to 300 ° C after the third roller 130 is fixed at 200 ° C, The results of observing the change of the melt state are shown.

<1, 2 Changing the roller temperature> Example 1 and 2 rollers
Temperature ℃ 3 rollers
Temperature ℃ Surface condition Remarks Example 1 200 200 XXX Non-melting Example 2 210 201 XXX Non-melting Example 3 225 200 △△△ Hot melt semi-molten Example 4 240 198 ○ ○ Surface protrusion of resin Example 5 254 200 ◎ ○○ Good surface condition Example 6 260 201 ◎ ○ ○ Good surface condition Example 7 275 200 ◎◎◎ Excellent surface condition Example 8 281 200 ◎ ○ ○ Good surface condition Example 9 293 199 ○ ○ Partial carbonization Example 10 299 200 XX carbonization &Amp; cir &amp;: very good &amp; cir &amp;: good &

The temperature of the third roller 130 is changed from 167 to 223 DEG C after fixing the temperature of the first roller 110 and the second roller 120 to 280 DEG C and the temperature of the hot melt resin A). The results are shown in Fig.

<3 Change roller temperature> Example 1 and 2 rollers
Temperature ℃ 3 rollers
Temperature ℃ Surface condition Remarks Example 11 280 167 XXX Hot melt shrinkage occurrence Example 12 281 173 XXX Hot melt shrinkage occurrence Example 13 280 180 △△ X Truncation occurrence Example 14 280 184 ○ △△ Partial contraction Example 15 282 188 ◎ ○○ Good surface condition Example 16 280 193 ◎ ○ ○ Good surface condition Example 17 281 199 ◎◎◎ Excellent surface condition Example 18 280 205 ◎◎◎ Excellent surface condition Example 19 280 211 ◎ ○ ○ Good surface condition Example 20 279 216 ○ ○ Dry time rise Example 21 280 223 XXX Dry time rise &Amp; cir &amp;: very good &amp; cir &amp;: good &

As a result of experiment, when the temperature of the first roller 110 and the second roller 120 were changed after the temperature of the third roller 130 was fixed at 200 ° C, the first roller 110 and the second roller 120 is in the temperature range of 254 ° C to 281 ° C, it can be seen that the surface state of the molten hot melt resin (A) is the most excellent.

However, when the temperatures of the first roller 110 and the second roller 120 are lower than 225 ° C, melting of the hot melt resin A does not occur completely, and when the temperature is higher than 299 ° C, partial carbonization occurs.

When the temperature of the third roller 130 is changed after fixing the temperature of the first roller 110 and the second roller 120 to 280 ° C and the temperature of the third roller 130 is 188 It can be seen that the surface state of the molten hot melt resin (A) is the most excellent when the temperature is in the range of 0 ° C to 211 ° C.

However, when the temperature of the third roller 130 is lower than 188 DEG C, the hot melt resin A shrinks. When the temperature is higher than 216 DEG C, the drying time increases in the process of producing a film in the future, .

Therefore, when the temperature of the first roller 110 and the second roller 120 is 254 ° C to 281 ° C, the best hot melt film is formed, and the temperature of the third roller 130 is 188 ° C to 211 ° C , It can be confirmed that the most excellent hot-melt film is formed.

As described above, it is to be understood that the technical structure of the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, All changes or modifications that come within the scope of the equivalent concept are to be construed as being included within the scope of the present invention.

A: Hot melt resin B: Release paper
C: Adhesive

100: roller portion 110: first roller
120: second roller 130: third roller
200: drying unit 210: primary drying unit
220: Secondary drying unit 230: Third drying unit
300: release paper removing unit 400:
410: Infrared (IR) lamp 500: Cutting part
600:
S10: First step (melting hot melt resin and applying releasing paper)
S20: Second stage (film formation through drying)
S21: Primary drying step (primary drying using low power microwave wave)
S22: Second drying step (secondary drying using high power microwave wave)
S23: Third drying step (third drying using a hot air heater)
S30: Step 3 (remove the release paper)
S40: Stage 4 (laminated adhesive)
S50: Step 5 (cutting)
S60: Sixth step (compression molding)

Claims (9)

A roller portion for melting the hot melt resin and applying the hot melt resin to the release paper;
A drying unit for drying the hot melt resin to form a hot melt film;
A release paper removing unit for removing the release paper of the hot melt film;
A joining part joining the hot melt film and the adherend;
A cut portion for cutting the lapped hot melt film and the adhesive to a predetermined size;
And a press-bonding portion for molding the cut hot-melt film and the adhesive,
The drying unit includes:
A primary drying unit capable of drying with microwave waves output at 2 to 8 kW;
A secondary drying unit capable of drying with a microwave wave output at 16 to 24 kW;
And a third drying unit capable of drying the hot melt film with a hot air heater. The method according to claim 1,
The roller unit
A first roller in which a plurality of hot wires are provided at regular intervals in a surface;
A second roller provided in parallel with the first roller at a predetermined interval so as to be in close contact with the first roller and having a plurality of heat lines uniformly provided in the surface thereof;
And a third roller provided below the first roller and the second roller and provided with a plurality of heat lines at uniform intervals in the surface,
Wherein the first roller and the second roller,
And is heated to a temperature of 255 to 280 DEG C,
The third roller
Wherein the hot-melt film is heated to a temperature of 190 to 210 占 폚. The method according to claim 1,
[0027]
And an infrared (IR) lamp capable of irradiating infrared (IR) light. A molding material for a car body interior skin using the hot melt film of claim 1,
Melting the hot melt resin and applying the hot melt resin to the release paper;
A second step of drying the hot melt resin applied to the release paper through the first step to form a hot melt film;
A third step of removing the release paper from the hot melt film;
A fourth step of joining the hot melt film to the adherend;
A fifth step of cutting the hot-melt film lapped through the fourth step;
And a sixth step of press-molding the cut hot melt film and the adhesive,
In the second step,
Upon drying,
A first drying step of drying the hot melt resin by 50 to 80% using microwave waves output at 2 to 8 kW;
A second drying step of drying the hot melt resin by 90 to 100% using microwave waves output at 16 to 24 kW;
And a third drying step of completely drying and stabilizing the hot melt resin using a hot air heater. 5. The method of claim 4,
The hot-
A method for molding a skin-protecting agent for automobiles using a hot-melt film, which comprises a polypropylene resin, a polyethylene, an adhesive resin, and a wax. 6. The method of claim 5,
The polypropylene resin sheet has a melt flow index of 5 to 20 g / 10 min and a melting point of 160 to 180 ° C.,
The polyethylene has a melt flow index of 5 to 30 g / 10 min and a melting point of 80 to 100 캜,
Wherein the adhesive resin is one selected from the group consisting of hydrides of petroleum hydrogen, hydrides of terpene resins, natural and modified resins, and derivatives of natural and modified resins,
Characterized in that the wax is one of paraffin and polyethylene wax. 6. The method of claim 5,
The hot-
Wherein the polypropylene resin is mixed with 0.15 to 0.25 parts by weight of the polyethylene, 0.05 to 0.15 parts by weight of the adhesive resin, and 0.01 to 0.09 parts by weight of the wax, based on 1 part by weight of the polypropylene resin. Molding method. 5. The method of claim 4,
In the first step,
Upon melting the hot melt resin,
Using the first roller and the second roller,
When the melted hot melt resin is applied to the release paper,
And the release paper is pre-heated by the third roller. 5. The method of claim 4,
In the fourth step,
When the hot melt film and the adherend are joined together,
Wherein the infrared ray (IR) is irradiated onto the surface of the molded article.
KR1020150040335A 2015-03-23 2015-03-23 Forming device and its forming method of built skin agent for car using hot melt film KR101703894B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101989510B1 (en) 2019-02-21 2019-06-17 정현기 A method for manufacturing lining material for a vehicle
KR101990574B1 (en) 2019-03-12 2019-06-18 정현기 A method for manufacturing lining material for a vehicle
KR102145040B1 (en) 2020-01-14 2020-08-14 정현기 A method for manufacturing lining material for a vehicle

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JPH0692093B2 (en) * 1991-07-04 1994-11-16 バンドー化学株式会社 Method for manufacturing hot melt tape
KR100400876B1 (en) 2000-10-27 2003-10-08 성일화학 (주) hot-melt adhesive for electronic components
KR100446095B1 (en) * 2002-01-10 2004-08-30 주식회사 파컴텍스 Apparatus for attaching textile fabric together

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KR100839130B1 (en) 2007-06-05 2008-06-19 주식회사 에이엠아이 씨 Manufacturing method of emi shielding fabric sheet with hot-melt adhesive layer using release liner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101989510B1 (en) 2019-02-21 2019-06-17 정현기 A method for manufacturing lining material for a vehicle
KR101990574B1 (en) 2019-03-12 2019-06-18 정현기 A method for manufacturing lining material for a vehicle
KR102145040B1 (en) 2020-01-14 2020-08-14 정현기 A method for manufacturing lining material for a vehicle

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