KR20180104552A - A seat cover for automobile and methode for manufacturing the same - Google Patents

Abstract

Provided is a seat cover for an automobile, which comprises: a skin layer; a bonding layer arranged in a lower portion of the skin layer; a first cushion layer arranged in a lower portion of the bonding layer; a second cushion layer arranged in a lower portion of the first cushion layer; and a base layer arranged in a lower portion of the second cushion layer. The skin layer has a pattern in a stitch form on a surface thereof.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automobile seat cover,

And more particularly, to a seat cover for an automobile and a manufacturing method thereof.

Recently, the application of natural materials, such as natural wood or natural leather, to high-end passenger cars has been increasing. Natural wood or natural leather has a distinctive texture and pattern, which can be applied to the interior of automobiles to decorate the inside of cars.

In addition, there is an increasing demand for an interior material which is reinforced with a car interior material by a stitching in addition to a decoration effect due to a unique texture and pattern of the natural leather itself by stitching the natural material or the like.

On the other hand, when the leather is stitched, a phenomenon such as shrinkage of the leather surface around the staple is frequently caused and the merchantability is deteriorated.

An embodiment of the present invention provides a seat cover for an automobile which can prevent the occurrence of a sagging phenomenon on the surface of the seat cover by the stitch pattern and maintain excellent cushioning feeling, volume feeling and adhesive force even in long term use.

Another embodiment of the present invention provides a method of manufacturing the automotive seat cover.

In one embodiment of the invention, a leather layer; An adhesive layer disposed under the leather layer; A first cushion layer disposed under the adhesive layer; A second cushion layer disposed under the first cushion layer; And a base layer disposed under the second cushion layer, wherein the leather layer has a stitch-like pattern on a surface thereof.

In another embodiment of the present invention, there is provided a method of making a leather, comprising: forming a leather layer; Forming an adhesive layer under the leather layer; Forming a first cushion layer under the adhesive layer; Forming a second cushion layer below the first cushion layer; Forming a base layer below the second cushion layer; And forming the stitch-like pattern on the surface of the leather layer.

The automotive seat cover has a stitch-like pattern on its surface, and can give excellent decoration effect. In addition, the automotive seat cover can prevent the surface of the seat cover from being frayed by the stitch pattern, and can maintain excellent cushioning, volume, and adhesion even when used for a long period of time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view of a vehicle seat cover according to an embodiment of the present invention. FIG.
2 schematically shows a pattern of a leather layer of a car seat cover according to an embodiment of the present invention.
FIG. 3 is a view illustrating a pattern forming process in the form of stitches according to the high-frequency fusing apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which: These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art to which the invention pertains. Only.

In the drawings, the thicknesses are enlarged to clearly indicate layers and regions. In the drawings, for the convenience of explanation, the thicknesses of some layers and regions are exaggerated. Like reference numerals refer to like elements throughout the specification.

It will also be understood that when a layer, film, region, plate, or the like is referred to as being "on" or "over" another portion, . Conversely, when a part is "directly over" another part, it means that there is no other part in the middle. In addition, when a layer, film, region, plate, or the like is referred to as being "under" or "under" another portion, . Conversely, when a part is "directly underneath" another part, it means that there is no other part in the middle.

In one embodiment of the invention, a leather layer; An adhesive layer disposed under the leather layer; A first cushion layer disposed under the adhesive layer; A second cushion layer disposed under the first cushion layer; And a base layer disposed under the second cushion layer, wherein the leather layer has a stitch-like pattern on a surface thereof.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view of a vehicle seat cover according to an embodiment of the present invention. FIG. The automotive seat cover 100 sequentially includes a leather layer 150, an adhesive layer 140, a first cushion layer 130, a second cushion layer 120, and a base layer 110 . 2 schematically shows a pattern of the leather layer 150 of the automotive seat cover 100 according to an embodiment of the present invention. Referring to this, the leather layer 150 has a stitch-like pattern on its surface, so that it is possible to maintain excellent cushioning feeling, volume feeling, and adhesive strength without causing a surface to be shrunken and also being used for a long period of time.

Specifically, the leather layer 150 may be any one selected from the group consisting of natural leather, TPU (Thermoplastic Ply Urethane Leather), PVC (Polyvinyl Chloride Leather), Febric, and combinations thereof.

Specifically, the leather layer 150 may be an artificial leather layer such as TPU (Thermoplastic Ply Urethane Leather) or PVC (Polyvinyl Chloride Leather). The automobile seat cover 100 includes a synthetic leather layer which is inexpensive compared to natural leather, so that a manufacturing cost is reduced, a phenomenon such as shrinkage on the surface does not occur, and a cushioning feeling and a volume feeling excellent in long- . That is, even a general car other than a luxury passenger car can be given a unique texture and pattern to give a luxurious decorative effect.

As an example, the leather layer 150 may comprise a reinforcing layer formed of a woven, woven or nonwoven fabric; A foam layer laminated on the reinforcing layer, the foam layer being formed of a foamed resin or a non-foamed resin; And a surface layer laminated on the foam layer, the surface layer being formed of any one of polyvinyl chloride, polyurethane, and thermoplastic polyurethane.

Specifically, it is preferable that the reinforcing layer is formed of a knitted fabric, a woven fabric, or a nonwoven fabric, in particular, a cotton fabric or a cotton and polyester blend fabric.

The surface layer may be formed of one selected from the group consisting of polyvinyl chloride, polyurethane, thermoplastic polyurethane, and combinations thereof to improve durability.

The surface layer may further include a coating layer formed on the upper surface thereof with a transparent paint of acrylic or urethane material. The coating layer can improve the durability and gloss of the automotive seat cover 100.

As another example, the leather layer 150 may comprise a reinforcing layer formed of a woven, woven or nonwoven fabric; And a surface layer laminated on the reinforcing layer, the surface layer being formed of any one of polyvinyl chloride, polyurethane, and thermoplastic polyurethane.

Specifically, the reinforcing layer is preferably formed of a knitted fabric, a woven fabric, or a nonwoven fabric, particularly a microfine nonwoven fabric impregnated with a polyurethane resin, or a nitro resin.

The surface layer may optionally include a coating layer formed on the top surface thereof with a transparent paint of acrylic or urethane material.

The leather layer 150 is preferably formed to a thickness of about 0.8 mm to about 1.4 mm. Specifically, when the thickness of the leather layer is less than the above range, the durability may be deteriorated. When the thickness of the leather layer exceeds the above range, it may be difficult to form the stitch pattern, There may be no problem.

The automotive seat cover 100 may include an adhesive layer 140 disposed under the leather layer 150 to provide excellent adhesion to the interface between the leather layer and the first cushion layer 130 have. For example, the first cushion layer 130 may include cotton or the like, and the materials may be completely different from each other in relation to the leather layer 150, so that the adhesion may be a problem. Particularly, when used for a long time, a problem such as peeling may occur at the interface between the leather layer 150 and the first cushion layer 130. The automotive seat cover 100 may include the adhesive layer 140 to provide an excellent adhesive force to the interface between the leather layer and the first cushion layer 130 and provide excellent cushioning feeling and volume Sense can be given.

Specifically, the adhesive layer 140 may include a hot-melt adhesive. For example, the automotive seat cover 100 may be formed by applying a hot-melt adhesive to a first cushion layer 130, which will be described later, to form the adhesive layer 140 and improve the adhesion with the leather layer 150 have. Specifically, the hot-melt adhesive has a high solids content and may not impregnate the cotton contained in the first cushion layer 130 and thus does not impair the volume feeling of the cotton. In addition, the hot-melt adhesive may be uniformly applied to the upper surface of the cotton by gravure coating to improve adhesion with the leather layer 150.

The hot melt adhesive may, in one embodiment, include one selected from the group consisting of a polyolefin, a thermoplastic elastomer (TPE), an ethylene-vinyl acetate (EVA), a polyethylene terephthalate (PET), a polyamide, It does not.

The adhesive layer 140 may be a TPU (Thermoplastic Polyurethane) film member. The automotive seat cover 100 may include a thermoplastic polyurethane (TPU) film member between the leather layer 150 and the first cushion layer 130 to improve adhesion. As described later, the automotive seat cover 100 can form a stitch-like pattern on the leather layer 150 using a high-frequency fusing device. At the same time, the leather layer 150 and the first cushion The adhesion between the layers 130 can be imparted. At this time, the automotive seat cover 100 may apply vibration of about 20,000 times per second to the leather layer 150 through the high-frequency fusing device in a state including the TPU film member. Then, the TPU film is melted by frictional heat, so that the leather layer 150 and the first cushion layer 130 can be imparted with improved adhesion. Further, since the leather layer 150 is also softened by the frictional heat, the adhesion strength with the first cushion layer 130 can be further improved. That is, the automotive seat cover 100 may include the TPU film member to improve the adhesion between the leather layer 150 and the first cushion layer 130 without a separate adhesive, It is possible to reduce the initial facility cost while increasing the working efficiency. Also, the automotive seat cover 100 can prevent the peeling of the leather layer 150 and the first cushion layer 130 during long-term use, including the TPU film member, It is possible to prevent the shape of the cover 130 from being sagged or bundled, thereby maintaining excellent cushion feeling and volume feeling. In addition, since the TPU film member can impart a waterproof effect to the first cushion layer 130, the first cushion layer 130 can be protected from external contaminants.

The automotive seat cover 100 includes a first cushion layer 130 disposed under the adhesive layer 140. The first cushion layer 130 is positioned between the leather layer 150 and the second cushion layer 120 to provide a good volume feeling to the automotive seat cover 100.

The automotive seat cover 100 may include a first cushion layer 130 under the leather layer 150 having a stitch pattern formed thereon so that the leather layer 150 may be squeezed around the stitch- And as the use time increases, it is possible to prevent the material from losing its cushion feeling and loss of the voluminous feeling in the second cushion layer 120 to be described later, so that the decorative effect of high quality can be given for a long time.

Specifically, the first cushion layer 130 may comprise an olefin fabric or cotton. More specifically, the first cushion layer 130 may comprise cotton. The cotton may comprise a single fineness or a filament with multiple fineness. For example, the cotton may be a mixture of a first cotton of about 6 denier to about 8 denier and a second cotton of about 1 denier to about 3 denier. For example, the cotton may be a mixture of the first cotton: the second cotton at a weight ratio of about 3: 1 to about 5: 1. Specifically, the cotton may be a mixture of about 7 denier: about 2 denier at a weight ratio of about 4: 1. The first cushion layer 130 may be lightweight while maintaining a predetermined density including the cotton.

The cotton contained in the first cushion layer 130 may be needle-punched. The cotton may be a nonwoven fabric obtained by needle punching a filament having a single fineness or various fineness as described above. The first cushion layer 130 includes a needle-punched cotton yarn to prevent the wool from being sagged or bundled with a large number of air layers therein, and provides excellent cushioning feeling and volume feeling for a long period of use .

The fiber serving as a raw material of the cotton may be a single fiber selected from the group consisting of natural fibers, synthetic fibers, and combinations thereof. The natural fiber may be a bast / leaf fiber derived from at least one selected from hemp, bamboo, mulberry, and combinations thereof. The bast fiber may be at least one selected from the group consisting of flax, hemp, hemp, jute, and combinations thereof. The flax fiber is a fiber separated from a plant leaf, , Sisalma, and combinations thereof. The first cushion layer 130 may include hemp to impart air permeability and antibacterial properties. At this time, the hemp can not be produced in the form of cotton, but it can be manufactured in the form of cotton by mixing the hemp and synthetic fibers and mixing the low melting fibers and heat treatment. The synthetic fibers may be at least one selected from the group consisting of polyester, nylon, acrylic fiber, polyurethane, and combinations thereof. Specifically, the cotton may be made of polyester, and the cotton may exhibit excellent strength and blending property. Further, the cotton may be shrunk again after heat treatment by frictional heat generated by a high-frequency fusing device described below or flame lamination for bonding with the second cushion layer including low melting point fibers. Accordingly, it is possible to maintain a good volume feeling on the automobile seat cover including the same.

The cotton contained in the first cushion layer 130 may include short fibers or impurities that are too short in the raw fiber, and may include gently inflated fiber strands after untwisting the fibers. Also, the cotton may be gently combing the fiber strands using a combing machine equipped with a comb and removing the impurities once more to smooth the fiber strands more smoothly.

The first cushion layer 130 may comprise a cotton having a density of about 0.03 g / m 2 to about 0.1 g / m 2. For example, when the density of the cotton is less than the above range, there may be a problem that cushion feeling and volume feeling are not given sufficiently. If the density exceeds the above range, there is a problem in the process of forming a stitch pattern by the high- Can occur.

The cotton may be coated with an acrylic polymer. The cotton is coated with an acrylic polymer, and at this time, the cotton may serve as a binder.

The first cushion layer 130 may have a thickness of about 3.0 mm to about 10.0 mm. If the thickness of the first cushion layer is less than the above range, it may be negligible to impart a sense of volume of the automotive seat cover 100. If the thickness of the first cushion layer exceeds the above range, It may be difficult to sew for.

The automotive seat cover 100 includes a second cushion layer disposed under the first cushion layer 130. The second cushion layer 120 may include any one selected from the group consisting of a filter foam, a PU foam, a polypropylene foam, a PET felt, and a combination thereof. can do. The second cushion layer 120 may form a volume in the automotive seat cover 100.

Specifically, the second cushion layer 120 may include PU foam. The second cushion layer 120 includes a foamed PU foam to exhibit a sense of cushioning, and can increase strength and heat insulation. Accordingly, the automotive seat cover 100 including the second cushion layer 120 can be provided with cushioning and durability.

When the stitch-like pattern is formed on the surface of the leather layer 150 as described below, including the leather layer 150 and the second cushion layer 120 without the first cushion layer 130, The surface may be shrunken. Particularly, as the use time of the automotive seat cover increases, the material of the second cushion layer loses its cushioning feeling, and the sense of volume disappears, so that a luxurious decorative effect can no longer be shown.

The automotive seat cover 100 is disposed below the first cushion layer 130 to prevent the leather layer from being shrunk around the stitch pattern, It is possible to prevent the material in the second cushion layer from losing its cushion feeling and losing its voluminous feeling, so that a luxurious decorative effect can be exhibited for a long time.

The automotive seat cover 100 may include a base layer 110. The base layer 110 is disposed under the second cushion layer 120. The base layer 110 is a portion in contact with the automobile seat frame and includes the leather layer 150, the adhesive layer 140, the first cushion layer 130, and the second cushion layer 130, (120) can be kept in a tense state. The adhesive layer 140, the first cushion layer 130, and the second cushion layer 130 may be restored to a state before stretching as the external force is released, And the second cushion layer 120 can be maintained in a tense state. As a specific example, the base layer 110 may be a spun yarn, more specifically a nylon spun yarn, a woven PET fiber or a glass fiber.

At this time, the base layer may be formed to have a thickness of about 0.5 mm to about 2.0 mm. Specifically, when the thickness of the base layer is less than the above range, the tension of the leather layer 150, the adhesive layer 140, the first cushion layer 130, and the second cushion layer 120 is maintained The adhesive layer 140, the first cushion layer 130, and the second cushion layer 120 are excessively taut when the thickness of the base layer is greater than the above range, There is a problem that the sense of cushion and the sense of volume are reduced.

The leather layer 150 may have a stitch-like pattern on its surface. The automotive seat cover 100 has a stitch pattern on the leather layer 150, thereby maximizing the texture and pattern of the leather to enhance the interior decoration effect.

Specifically, the stitch-like pattern can be formed by direct stitching or sewing. For example, the stitch-like pattern may be formed by stitching an actual yarn through a sewing machine. Here, the thread is formed to have a denier of about 300 denier to about 500 denier, so that the stitch pattern can be easily identified, and the decoration effect can be maximized.

In addition, the stitch-like pattern may be formed by a high-frequency fusing device. FIG. 3 shows a stitch-like pattern forming process according to the high-frequency fusing device 30 according to an embodiment of the present invention. Referring to this, the high-frequency fusing device 30 may be a high-frequency fusing roll press.

Another embodiment of the present invention is directed to a method of making an article comprising: forming a leather layer; Forming an adhesive layer under the leather layer; Forming a first cushion layer under the adhesive layer; Forming a second cushion layer below the first cushion layer; Forming a base layer below the second cushion layer; And forming the stitch-like pattern on the surface of the leather layer. . The automotive seat cover 100 can be manufactured by the method for manufacturing the automotive seat cover.

Specifically, the step of forming the leather layer forms a leather layer having a constant thickness, and any conventional method may be used. For example, a calender method may be used. The leather layer is the same as the leather layer 150 of the automobile seat cover 100 described above.

The step of forming the adhesive layer is to form an adhesive layer below the leather layer. Specifically, the matters relating to the adhesive layer are as described above.

Specifically, the automotive seat cover 100 may include a step of laminating a TPU film member between the leather layer 150 and the first cushion layer 130 to form an adhesive layer. The automotive seat cover 100 may include a TPU film member to further improve the adhesion between the leather layer 150 and the first cushion layer 130.

The thickness of the TPU film member may be from about 50 [mu] m to about 200 [mu] m. Specifically, when the thickness of the TPU film member is less than the above range, the adhesion between the first cushion layer 130 and the leather layer 150 may be deteriorated. If the thickness of the TPU film member exceeds the above range, There may be a falling problem.

The step of forming the stitch-like pattern on the surface of the leather layer 150 may be performed by using a high-frequency fusing device (for example, a polyester film) in a state in which the TPU film member is laminated between the first cushion layer 130 and the leather layer 150 30).

Specifically, the high-frequency fusing device 30 may be a high-frequency fusing roll press. Specifically, the high-frequency fusing device 30 includes an anvil 10 for rotating and driving, and a horn (Horn).

Specifically, the anvil 10 may be a roller configured to rotate. The horn 20 may be formed to apply ultrasonic vibration while pressing the leather layer 150 placed on the anvil 10. Thus, the base layer 110, the second cushion layer 120, the first cushion layer 130, the TPU film member, and the leather layer 150, which are laminated, pass through the anvil 10 The TPU film member is melted by frictional heat to attach the first cushion layer 130 and the leather layer 150 to each other.

At this time, the horn 20 may be formed to apply about 20,000 vibrations per second. This is because if the ultrasonic vibration is less than about 20,000, the TPU film member is not melted and the adhesion between the first cushion layer 130 and the leather layer 150 may be deteriorated.

The automotive seat cover 100 can improve the adhesion with the leather layer 150 by forming the adhesive layer 140 by applying a hot melt adhesive to the first cushion layer 130 to be described later. The matters relating to the hot-melt adhesive are as described above.

The step of forming the first cushion layer is to form a first cushion layer under the leather layer 150. Specifically, the first cushion layer 130 is as described above.

The first cushion layer 130 may be combined with the leather layer 150 in the process of forming a stitch-like pattern by the high-frequency fusing device 30 as described later.

Specifically, the high-frequency fusing device 30 may be a high-frequency fusing roll press. Specifically, the high-frequency fusing device 30 includes an anvil 10 for rotating and driving, and a horn (Horn). FIG. 3 shows a stitch-like pattern forming process according to the high-frequency fusing device 30 according to an embodiment of the present invention. The stitch-like pattern is formed on the surface of the leather layer 150. The base layer 110, the second cushion layer 120, and the second cushion layer 120, which are stacked on the anvil 10, The first cushion layer 130, the adhesive layer 140 and the leather layer 150 are seated on the leather layer 150 through the horn disposed on the anvil 10, Ultrasonic vibrations may be applied. At this time, the base layer 110, the second cushion layer 120, the first cushion layer 130, the adhesive layer 140, and the leather layer 150, which are laminated, pass through the anvil 10 Can be combined.

Specifically, when the horn 20 applies ultrasonic vibration and presses the leather layer 150, a stitch-like pattern is formed on the leather layer 150 due to frictional heat and pressing force, and the first cushion layer 130, May be combined with the leather layer 150.

At this time, the horn 20 may be formed to apply about 20,000 vibrations per second. For example, if the size of the ultrasonic vibration is less than 20,000, the adhesive layer 140, the first cushion layer 130, the second cushion layer 120, and the leather layer including the base layer 110 150) is not softened and the adhesive force is not sufficient, so that the adhesive force may be lowered during long-time use.

For example, the second cushion layer 120 may be formed by flame lamination, for example, by forming a second cushion layer 120 below the first cushion layer 130. For example, To the first cushion layer 130 by the first cushion layer 130. [ Here, the flame lamination is a method in which the surface of the second cushion layer 120, for example, the surface of the PU foam contained in the second cushion layer 120 is partially melted by the gas flame, And the second cushion layer 120 are bonded to each other. In this way, the PU foam of the second cushion layer 120 and the cotton contained in the first cushion layer 130 can be tangled and integrally joined. That is, it is possible to prevent the phenomenon that substances in the respective layers are scattered on one side even when used for a long period of time, and phenomena such as lifting or separation between layers can be prevented. That is, excellent cushioning, volume, and durability of the automotive seat cover 100 can be maintained for a long time. The details of the second cushion layer 120 are the same as those of the second cushion layer 120 of the automotive seat cover 100.

The step of forming the base layer may include forming a base layer 110 under the second cushion layer 120. For example, the base layer 110 may be formed by heat- 120 so that the combined state of the base layer 110 and the second cushion layer 120 can be firmly maintained. The base layer 110 is the same as the base layer 110 of the automotive seat cover 100.

Specifically, the base layer 110 may be formed as a spun yarn that is stretched as an external force is applied and restored to a pre-stretch state as the external force is disassembled, as described above. Since the adhesive layer 140, the first cushion layer 130 and the second cushion layer 120 are kept in a tense state when the stitch pattern is formed on the leather layer 150, Slack of the leather layer 150, the adhesive layer 140, the first cushion layer 130, and the second cushion layer 120 can be prevented.

The step of forming a stitch-like pattern may be performed on the surface of the leather layer 150 including the adhesive layer 140, the first cushion layer 130, the second cushion layer 120, and the base layer 110 Thereby forming a stitch-like pattern. Specifically, the stitch-like pattern can be formed by direct sewing or sewing. The above-mentioned direct sewing or sewing is as described above.

The step of forming the stitch-like pattern may include forming the skin layer 150 including the adhesive layer 140, the first cushion layer 130, the second cushion layer 120, and the base layer 110, To the high-frequency fusing device 30 to form a stitch pattern on the surface of the leather layer 150. By forming the stitch-like pattern using the high-frequency fusing device 30, it is not necessary to repeatedly raise and lower the needle repeatedly, so that the manufacturing time can be shortened considerably and manufacturing efficiency can be improved. It is possible to apply a bonding force without damaging the tissue.

The high frequency fusing device 30 may include a rotating anvil 10 and a horn disposed on the anvil 10. The high frequency fusing device 30 may be a high frequency fusing roll press, . ≪ / RTI > FIG. 3 shows a stitch-like pattern forming process according to the high-frequency fusing device 30 according to an embodiment of the present invention. The stitch-like pattern is formed on the surface of the leather layer 150. The base layer 110, the second cushion layer 120, and the second cushion layer 120, which are stacked on the anvil 10, The first cushion layer 130, the adhesive layer 140 and the leather layer 150 are seated on the leather layer 150 through the horn disposed on the anvil 10, Ultrasonic vibrations may be applied.

Specifically, the anvil 10 may be a roller configured to rotate. The horn 20 may be formed to apply ultrasonic vibration while pressing the leather layer 150 placed on the anvil 10. Accordingly, the base layer 110, the second cushion layer 120, the first cushion layer 130, the adhesive layer 140, and the leather layer 150, which are laminated, pass through the anvil 10 .

A plurality of protrusions are formed on the outer circumferential surface of the anvil 10 or the horn 20 so that a stitch-like pattern can be clearly formed on the surface of the leather layer 150. Therefore, the time required for the stitch pattern can be shortened, and the manufacturing efficiency can be improved.

Specifically, when the horn 20 applies ultrasonic vibration and presses the leather layer 150, a stitch-like pattern is formed on the leather layer 150 by frictional heat and pressing force. At this time, the size and shape of the protrusions formed on the outer circumferential surface of the anvil 10 may be variously embodied, but are preferably hemispherical. This is to allow protrusions to easily escape from the leather layer 150 when the anvil 10 is rotated.

The automotive seat cover 100 may be formed by disposing the base layer 110, the second cushion layer 120, the first cushion layer 130, the adhesive layer 140 and the leather layer 150 in separate It can be attached without adhesive. At this time, the horn 20 may be formed to apply about 20,000 vibrations per second. However, if the size of the ultrasonic vibration is less than 20,000, the leather layer 150 including the adhesive layer 140, the first cushion layer 130, the second cushion layer 120, and the base layer 110 It may not be softened and the adhesion may be deteriorated.

The stitch pattern forming step may include the high frequency fusing device 30, the adhesive layer 140, the first cushion layer 130, the second cushion layer 120, and the base layer 110 The leather layer 150 having a pattern therebetween. Specifically, a thermal transfer film may be inserted between the horn 20 and the leather layer 150.

The thermal transfer film having a pattern is inserted between the horn 20 of the high frequency fusing device 30 and the leather layer 150 by the film loading step so that the high frequency fusing device 30 is attached to the leather layer 150 It is possible to transfer the pattern onto the upper surface of the leather layer 150.

Here, the pattern of the thermal transfer film is formed along the projecting portion of the anvil 10, and is formed in a stitch shape colored with a color different from that of the leather layer 150, The stitch form pattern formed by the pressing of the high-frequency fusing device 30 can be colored as it is transferred to the upper surface. Therefore, the decoration effect of the stitch pattern can be further improved.

Hereinafter, specific embodiments of the present invention will be described. However, the embodiments described below are only intended to illustrate or explain the present invention, and thus the present invention should not be limited thereto.

<Examples>

Examples 1 to 5

A sheet comprising an adhesive layer, a first cushion layer, a second cushion layer and a base layer sequentially on the lower part of the leather layer was produced. At this time, the leather layer was formed of a PVC artificial leather including a surface layer, a foam layer formed of a foaming resin, and a knitted fabric. A TPU film was laminated with the adhesive layer. The first cushion layer was formed by mixing 80% by weight of 7-denier PET yarn and 20% by weight of 2-denier PET yarn, coating with an aqueous acrylic resin, and needle-punched cotton. That is, the first cushion layer was formed to have a thickness of about 6 oz, a thickness of about 5 mm, and a density of about 0.085 g / m &lt; 3 &gt;. The second cushion layer was formed of PU foam. The base layer was formed of glass fiber.

3, the seat including the leather layer, the adhesive layer, the first cushion layer, the second cushion layer, and the base layer is seated on the top of the anvil, Ultrasonic vibration was applied to the leather layer through a horn.

Thus, a car seat cover having a stitch-like pattern on the surface of the leather layer was produced.

At this time, five sheets of the sheets including the leather layer, the adhesive layer, the first cushion layer, the second cushion layer, and the base layer were manufactured, and ultrasonic vibration was applied to each of the five sheets, Lt; RTI ID = 0.0 &gt; 1 to 5 &lt; / RTI &gt;

Examples 6 to 10

In the same manner as in Examples 1 to 5 except that a hot-melt adhesive was applied to the first cushion layer to form the adhesive layer in Examples 1 to 5, a stitch-like pattern Was prepared. &Lt; tb &gt; &lt; TABLE &gt; That is, a car seat cover sample having a stitch-like pattern on the leather layer surface of Examples 6 to 10 having an adhesive layer containing a hot-melt adhesive between the leather layer and the first cushion layer was prepared.

<Evaluation>

Experimental Example  One: Cushion feeling  evaluation

Samples of the above examples were arbitrarily arranged, and ten people were pressed and watched by hand, and the cushioning sensation was evaluated by tactile and naked eyes. In this case, 1) when the cushion feeling is sufficient, 2) when the cushion feeling is relatively insufficient or not, - X, 3) when it is unclear, - Δ is marked and the average value is obtained. .

Experimental Example  2: Wrinkle Evaluation

The leather layer surface of the sample of the above example was visually observed to count the samples where wrinkling (shrinkage phenomenon) occurred. Specifically, the leather layer includes convex portions of an embossed portion by a stitch pattern, as shown in Fig. At this time, whether wrinkles occurred on the leather surface around the stitches were visually observed, and the results are shown in Table 1 below.

Experimental Example  3: Adhesion

In each of the above-described samples, each of the leather layer and the base layer was pulled out to visually observe whether or not the interface between the leather layer and the first cushion layer was peeled off. The average results are shown in Table 1 below.

Specifically, it is preferable that the following conditions are satisfied: 1) when peeling does not occur at the interface between the leather layer and the first cushion layer; and 2) when the force is applied to the interface between the leather layer and the first cushion layer, -?, 3) when peeling easily occurs at the interface between the leather layer and the first cushion layer -?

Examples 1-5 Examples 6-10 Cushion feeling O O Wrinkles O O Adhesion O O

100: Seat covers for automobiles
110: base layer
120: second cushion layer
130: first cushion layer
140: Adhesive layer
150: Leather floor
10: Anvil
20: Hon
30: High frequency welding apparatus

Claims (10)

Leather layer;
An adhesive layer disposed under the leather layer;
A first cushion layer disposed under the adhesive layer;
A second cushion layer disposed under the first cushion layer; And
And a base layer disposed below the second cushion layer,
The leather layer has a stitch-like pattern on its surface
Seat covers for automobiles.
The method according to claim 1,
The leather layer may be any one selected from the group consisting of natural leather, TPU (Thermoplastic Ply Urethane Leather), PVC (Polyvinyl Chloride Leather), Febric,
Seat covers for automobiles.
The method according to claim 1,
Wherein the adhesive layer comprises a hot melt adhesive
Seat covers for automobiles.
The method according to claim 1,
The adhesive layer may be a TPU (Thermoplastic Polyurethane) film member
Seat covers for automobiles.
The method according to claim 1,
The first cushion layer comprises an olefin fabric or cotton
Seat covers for automobiles.
The method according to claim 1,
Wherein the second cushion layer comprises any one selected from the group consisting of a filter foam, a polyurethane foam, a polypropylene foam, a polyethyleneterephthalate foam,
Seat covers for automobiles.
The method according to claim 1,
The stitch-like pattern is formed by direct stitching or sewing
Seat covers for automobiles.
The method according to claim 1,
The stitch-like pattern is formed by a high-frequency fusing device
Seat covers for automobiles.
Forming a leather layer;
Forming an adhesive layer under the leather layer;
Forming a first cushion layer under the adhesive layer;
Forming a second cushion layer below the first cushion layer;
Forming a base layer below the second cushion layer; And
Wherein the leather layer has a stitch-like pattern on its surface
A method of manufacturing a seat cover for an automobile.
10. The method of claim 9,
Wherein the step of forming the stitch-like pattern comprises the step of putting the leather layer including the adhesive layer, the first cushion layer, the second cushion layer and the base layer into a high-frequency fusing device to form a stitch pattern on the leather layer surface Forming
A method of manufacturing a seat cover for an automobile.

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