JP2843561B2 - Manufacturing method of laminated fabric and fiber product - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inexpensive laminated fabric and a method for producing the same, and more particularly to a carpet or interior material for a car which can be recycled by unifying the constituent materials and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, large-size products such as carpets and interior materials for automobiles have different materials used for the front surface and the back surface, and have simple materials such as latex, vinyl chloride, or urethane foam. However, it is very difficult to recycle and reuse these materials, since those that cannot be incinerated are integrated with the surface material, and it is not easy to separate or divide them.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to solve such problems and to provide a recyclable laminated fiber product. The present applicant relates to an all-polyester carpet that is already recyclable (JP-A-7-310275,
Japanese Patent Application Laid-Open Nos. 8-224158 and 7-6293. In the method of bonding the first base cloth containing the pile of the carpet and the second base cloth containing the backing material with an adhesive, a water-soluble polyester resin is used as the adhesive, but sufficient adhesiveness is required. In order to obtain the polyester resin, it is necessary to use polyester fine powder in combination. As a bonding method, water is once evaporated, and then the polyester resin is melted to bond both base fabrics. This requires a long time and a large amount of heat energy for the bonding process, and furthermore, when a water-soluble polyester resin is applied, a part of the polyester resin is absorbed by the first base cloth or the second base cloth, and effective bonding is performed. In order to exert power, a considerable amount of water-soluble polyester resin is required. It has been found that if these are not sufficiently performed, the adhesiveness is insufficient and the adhesive is immediately peeled off. The inventors of the present invention have intensively studied whether or not the bonding process can be performed at higher speed than the conventional method using a water-soluble polyester resin, and reached the present invention.

[0004]

That is, according to the present invention, when a laminated fabric is produced by laminating two or more layers of fabric, at least one fabric is composed of a main fiber and a melting point at least 20 ° C. lower than the main fiber. Or a heat-adhesive fiber having at least a polymer having a softening point as a surface component, and using a cloth made of cotton yarn containing 10 to 50% by weight of the heat-adhesive fiber, and using a flame or an electric heater to heat the cloth surface. It is a method for producing a laminated fabric, which is directly heated, immediately superimposed on another fabric, and then pressurized at room temperature or low temperature to perform lamination, and is a laminated fabric obtained by such a production method. Further, the present invention, when manufacturing a laminated fabric by laminating two or more layers of fabric,
As the at least one dough, a heat-adhesive fiber whose surface portion is at least a surface-side component of a polymer having a melting point or softening point at least 20 ° C. lower than the main fiber of the dough, Using a dough containing 10-50% by weight in a high blend and unevenly distributed, the dough surface is directly heated by a flame or an electric heater, immediately superimposed on another dough and pressed at room temperature or low temperature, and then pasted. A method for producing a laminated fabric, characterized in that the lamination is performed, and a laminated fabric obtained by such a production method. Further, in the present invention, in producing a laminated fabric by laminating two or more layers of fabric, at least one fabric surface, at least the surface of a polymer having a melting point or softening point lower than the main fiber of the fabric by 20 ° C. or more. A non-woven fabric or powder of ²⁰ to 50 g / m ² composed of a heat-adhesive fiber as a side component is fixed, and the fabric is directly heated from above the non-woven fabric or powder for bonding by a flame or an electric heater, and immediately superimposed on another fabric. A method for producing a laminated fabric, characterized in that lamination is performed by applying pressure at room temperature or at a low temperature, and a laminated fabric obtained by such a production method. Furthermore, the present invention provides the above-mentioned production method and a laminated cloth obtained by the production method, wherein a first cloth as a surface material and a heat-bondable fiber, a nonwoven cloth, or a backing material as a backing material of a nonwoven cloth containing a resin powder. A carpet or interior material for automobiles comprising two fabrics and a method for producing the same.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the method for producing a laminated fabric according to the present invention, at least one layer of the fabric has a thickness of at least 2
Use a fabric containing at least a polymer having a low melting point or softening point of at least 0 ° C. or a softening point as a surface component, in the form of a cotton fiber, or use a high blend of the heat-adhesive fiber on the fabric surface. Various types of clothing can be used as long as the cloth is used, or the heat-adhesive fiber or the heat-adhesive resin powder is used as an intermediate adhesive layer of a two-layer cloth and is produced by the above method. Fabric, living material fabric,
It can be applied to the production of industrial material fabrics. The fabric to be used may be composed of any fiber material.However, in order to improve the adhesiveness between the fabrics in bonding with the thermo-adhesive fiber, the polymer material of the thermo-adhesive fiber and the other material are used. It is preferable to use a combination having a good affinity for the fiber material constituting the fabric. As such a combination, when a synthetic fiber fabric is used, it is preferable to combine fibers made of the same polymer. The advantage of using the same type of polymer is that it has good adhesiveness between fabrics and is significant in recycling laminated fabrics.

Next, the present invention will be described in detail by taking a carpet as an example of a laminated fabric. As the first base cloth (fabric) of the carpet, for example, a recyclable base cloth (fabric) in which polyester pile yarns are planted with tufts or the like on a base cloth (fabric) made of polyester fibers can be used. The first base fabric (fabric) may be a fabric having a pile, or a woven or knitted fabric without a pile, depending on the use or preference.

[0007] As the second base fabric (fabric) to be laminated on the first base fabric (fabric), some contrivances are required in order to exhibit the features of the present invention. In the second base fabric, a main fiber and a heat-adhesive fiber having a polymer whose melting point or softening point is lower than that of the fiber material by 20 ° C. or more at least as a surface component are 10 to 5 parts.
It must be contained at 0% by weight. The polymer material exhibiting thermal adhesiveness is not particularly limited as long as it is a thermoplastic polymer that satisfies the above relationship with the main fiber. However, considering recycling, polyester-based or polyolefin-based polymer materials are preferably used. If the content of the heat-adhesive fiber is less than 10% by weight, a strong bonding state cannot be provided between the fabrics.
It is desired that it be contained as described above. On the other hand, when the content of the heat-adhesive fiber exceeds 50% by weight, the fabric becomes hard, which is not preferable in practical use as a carpet or the like.

The heat-adhesive fiber used in the present invention may be a fiber consisting of a polymer having the above-mentioned melting point or softening point alone, or a core-sheath type, side-by-side having such a polymer at least as a surface component. It may be a composite fiber of a type.

In the present invention, at the time of laminating the dough, at least the surface of the second dough including the heat-adhesive fibers is directly heated by a flame or the like, and is sufficiently melted in a state where the first base fabric (the dough) is melted. And pasted together. For this reason, there is no need for preliminary heating of the first base fabric, no need to apply pressure under more severe conditions, and strong adhesion only by pressing the laminate under relatively low temperature conditions of about room temperature The state is obtained. Therefore, since it is not necessary to apply severe heat compression bonding to the cloth at the time of bonding as in the past, the pile of the first base fabric does not fall due to the heat compression, and the advantage of the present invention is maximal in manufacturing a product having a pile. Can be demonstrated in.

That is, the most characteristic point of the method for producing a laminated fabric of the present invention is that at least one surface of the fabric (second fabric) containing the heat-adhesive fiber is formed by using a flame such as a gas burner or an electric heater. Heating directly. At this time, since the heat-adhesive fiber is melted slightly earlier than the main fiber, it is preferable to determine the heating time and the degree of heating so that the influence of heat on the main fiber is small. Then, at the time when the heat-adhesive fibers are softened and melted, the other fabric (first fabric) is immediately superimposed on the back surface (the surface having no design such as a pile or a pattern), for example, at room temperature or low temperature. The bonding can be completed by lightly compressing with a pressure roll or the like.

The back surface of the first base cloth does not need to be heated. Rather, since the back surface is at room temperature or low temperature, it is superimposed, and at the same time, the molten portion is cooled while being bonded.
Lamination is performed efficiently. In addition, since the bonding is completed without applying heat and pressure to the first base cloth having a pile or the like, there is no pile collapse seen in a pile product processed by conventional bonding,
A good appearance carpet can be obtained.

The time required to melt the surface of the cloth (second base cloth) containing the heat-adhesive fibers depends on the temperature of the flame and the heating capacity of the heater, but is generally several seconds (about 1 to 2 seconds). The time required for lamination can be reduced to about 1/10 to 1/20 of that required when a conventional adhesive is used.

By the way, in the ordinary laminated fabric, as described above, if the fabric of the second base fabric is directly heated using the fabric containing the heat-adhesive fiber and bonded to the first base fabric, the two layers are laminated. When the laminated fabric is used for applications where a force such as "fir" is repeatedly applied, for example, for a surface material of a cushion sheet for an automobile, a further higher adhesive strength is obtained. An improved laminated fabric is required. For such a problem of stronger adhesive bonding, low melting point or low softening point adhesiveness is provided on the surface portion or surface of the second base fabric with or without the heat-adhesive fiber. Fiber, non-woven fabric or resin powder is fixed, and the fixed adhesive fiber, non-woven fabric or resin powder is directly heated from above the base cloth, thereby melting the interposed fiber, non-woven fabric or resin powder. Further, a stronger bond that does not separate even with repeated stress can be used as another first base fabric.

That is, according to the present invention, the same direct heating as described above can be performed even when a cloth in which heat-adhesive fibers are richly present on the surface of the cloth is used as the second base cloth. It is possible to obtain a laminated fabric that is more firmly bonded than the case of the heat-adhesive fiber-mixed fabric. As an example of a method for forming a fabric in which the heat-adhesive fibers are richly present on the surface portion of the fabric, the dough is composed of a plurality of layers of the fabric, and the heat-adhesive fibers are high on the surface layer side. What is necessary is just to make it mix | blended with the compounding ratio, and to combine this.

When the second base fabric is made of a non-woven fabric, if the second base fabric contains a heat-adhesive fiber, the heat-adhesive fiber has a function as a binder for assisting the bonding between the non-woven single fibers. Although it is preferable in terms of performance, the presence of the heat-adhesive fibers further causes the fibers to be bonded to the heat-adhesive fibers present on the surface of the fabric, thereby increasing the strength of the fabric and increasing the adhesive strength. It is more preferable. However, it is not always essential to contain this heat-adhesive fiber.

The heat-adhesive fibers to be present on the surface of the dough may be composed of the same component as the heat-adhesive fibers when mixed with the second base fabric, or may be composed of different components. However, in consideration of its adhesiveness and recyclability, it is preferable that the same component and the same type of polymer component have the same low melting point or low softening point.

The amount of use is 20 to 20
An amount of 50 g / m ² is preferred. This usage is 20 g / m ²
When the value is less than the above, the desired stronger bonding cannot be expected. More preferably, it is 30 g / m ² or more. But 5
If the amount is more than 0 g / m ^2, the texture of the bonded fabric becomes hard due to the increase of the strong bonded portion, which is not preferable.

In the present invention, the second base cloth may be a cloth in which a non-woven fabric made of the above-mentioned heat-adhesive fiber is fixed to the surface of the cloth by driving or the like. This makes it possible to obtain a laminated fabric that is more strongly bonded.

The nonwoven fabric made of the heat-adhesive fiber which can be used here is usually a nonwoven fabric made of the heat-adhesive fiber having a fineness.
It may be a wet-type nonwoven fabric or a melt-blown nonwoven fabric made of a thermoadhesive fiber having a fine fineness. In the case of using the latter melt-blown nonwoven fabric, it is more preferable that the melt-blown nonwoven fabric is heated and melted to perform uniform bonding in that the fineness is fine and the dispersion is uniform.

The heat-bondable nonwoven fabric may be composed of the same component as the heat-bondable fiber when mixed with the second base fabric, or may be composed of a different component. Considering the properties and recyclability, it is preferable that the same component and the same type of polymer component have the same low melting point or low softening point.

The amount of use is 20 to 20
An amount of 50 g / m ² is preferred. This usage is 20 g / m ²
When the value is less than the above, the desired stronger bonding cannot be expected. More preferably, it is 30 g / m ² or more. But 5
If the amount is more than 0 g / m ^2, the texture of the bonded fabric becomes hard due to the increase of the strong bonded portion, which is not preferable.

The heat-bondable nonwoven fabric can be subjected to the direct heating with the nonwoven fabric placed on the surface of the second base fabric. The operation of placing correctly on top is not very favorable for its implementation. A heat-bondable nonwoven fabric is placed on the surface of the second base fabric, and a so-called needle punch or the like is driven from the nonwoven fabric side to prepare a base fabric in which the heat-bondable nonwoven fabric is fixed on the surface of the second base fabric in advance. If this is done, this base cloth can be smoothly introduced into the heat treatment step together with the first base cloth and processed, so that easy implementation can be performed.

Further, in the present invention, the second base fabric is made of a heat-sealing component having a melting point or softening point lower by at least 20 ° C. than the main fiber of the second base fabric, instead of the above-mentioned heat-bondable nonwoven fabric. A cloth made of resin powder and fixed by heat setting can also be used.

In this case, the resin powder may be composed of the same component as the heat-adhesive fibers mixed into the second base fabric,
Although it may be composed of different components, in consideration of its adhesiveness and recyclability, it is preferable that the same component and the same polymer component have the same low melting point or low softening point. .

In this case, the amount of the resin powder used is preferably ²⁰ to 50 g / m ² with respect to the second base fabric. If this amount is less than 20 g / m ² , the desired stronger bonding cannot be expected. More preferably, it is 30 g / m ² or more. However, when the amount is more than 50 g / m ^2, the texture of the bonded fabric becomes hard due to the increase of the strong bonded portion, which is not preferable.

The second base fabric can be used as a urethane substitute layer if it is made of a nonwoven fabric. This means
The carpet in which the second base fabric is used as a backing material with respect to the first base fabric surface material in which the piles are planted, furthermore, interior materials for automobiles, particularly, its cushion sheet can be easily and inexpensively manufactured. Since it can be made into a single material, it means that it has a major feature that can eliminate the difficulty of recycling carpets and cushion sheets when using a urethane backing material.

When the second base fabric is formed of a non-woven fabric and is used as a cushion sheet, for example, when it is used as a cushion sheet, when the seat is seated, the inter-fiber of the non-woven fabric used as the backing material is used. Compression may initially produce a fricative sound, referred to as "crying" between the fibers. This friction noise is not necessarily unpleasant and is a problem that depends on the individual difference of the sitting person, but in order to reduce this friction noise, the direct heating of the second base cloth and the second base cloth and the first base cloth After the pressing under the low temperature condition (that is, after bonding), the pressing treatment may be performed so that the compression is further performed by 50% or more.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be further described with reference to the drawings and embodiments, but the present invention is not limited to these drawings and embodiments.

Example 1 This example uses a nonwoven fabric containing a low-melting adhesive fiber as a backing material, and is not subjected to repeated kneading operations such as carpets by the direct heating method of the present invention. Is an example obtained by simplifying manufacturing. <Preparation of First Base Cloth> A polyester yarn 1000 denier / 50 filament is used as a pile yarn, and a spunbond nonwoven fabric made of polyester is used as a base cloth for planting piles.
/ 10 gauge cloth, pile height = 7 mm cloth (first base cloth)
made. <Preparation of Second Base Fabric> A polyester fiber (melting point = 260 ° C.) 15 denier × 64 mm raw cotton was used as the main fiber.
0%, low-melting polyester fiber (softening point = 110 ° C.) as heat-adhesive fiber, 6 denier × 64 mm, 30% cotton blended, spun web by card, needle punched to make non-woven fabric with basis weight of 500 g / m ^2. Was. Next, this nonwoven fabric was subjected to a dry heat treatment at 190 ° C. for 1 minute to form a nonwoven fabric (second base fabric) in which the main fibers were fused with heat bonding fibers. <Preparation of Laminated Fabric> One surface of the second base fabric was directly exposed to the flame of a gas burner to partially melt the surface. It melted just right by the flame contact for about 2 seconds, and the back side of the first base cloth (the side without pile) led from another place was overlaid on the second base cloth with one side melted, and immediately Lightly compress with a pressure roll,
The bonding process was performed while cooling. The processing speed at this time was 20 m / min. The resulting carpet is excellent without pile collapse and, as can be seen in the above process, has a simple and simple manufacturing process and is excellent in industrial production.

Example 2 This example uses a second base fabric in which heat-adhesive fibers are unevenly distributed on the surface thereof, and produces a laminate mainly subjected to repeated kneading operations such as a cushion sheet by a direct heating method. This is an example obtained by simplification. <Preparation of First Base Fabric> Using a three- (3) bar tricot knitting machine, a polyester 150 denier / 72 filament yarn is used as a front yarn, and a polyester 75 denier / 24 filament is used as a middle yarn and a back yarn. Using this thread, a full cut fabric (first base fabric) having a pile height of 3 mm was prepared. <Preparation of Second Base Fabric> A polyester fiber (melting point = 260 ° C.) 15 denier × 64 mm raw cotton was used as a main fiber.
0%, 10% of 6-denier × 64 mm low-melting polyester fiber (softening point = 110 ° C.) was mixed as a heat-adhesive fiber, and the first web was spun with a card. Next, the main fiber and the heat-adhesive fiber were mixed at 70% in the former and 30% in the
%, And a second web was similarly spun by a card and laminated on the first web. Next, this laminated web is needle-punched from the second web side to a basis weight of 25.
0 g / m ² of non-woven fabric,
A dry heat treatment was performed at 1 ° C. for 1 minute to fuse the main fibers of the first web and the second web with the thermal bonding fiber, and to form a nonwoven fabric (second base fabric) in which the two webs were fused together. <Preparation of Laminated Fabric> The second web side of the second base fabric was directly exposed to the flame of a gas burner to partially melt the surface as in Example 1, and at the same time, the first base fabric was guided from another place. The back surface of the first base fabric (the side having no pile) was superimposed on the melted surface of the second base fabric, immediately pressed lightly by a pressure roll, and subjected to an adhesive treatment while cooling. The processing speed at this time was 20 m / min. The obtained laminate is excellent without delamination of the laminate, and, as understood from the above steps, has a simple and simple manufacturing process and is excellent in industrial production.

Example 3 In this example, a heat-bondable non-woven fabric is interposed between a first base fabric and a second base fabric, and is thermally fused by a direct heating method to firmly bond the two base fabrics. This is an example of obtaining a laminate that is stable against repeated kneading action and is suitable mainly as a cushion sheet for automobiles and the like. <First Base Fabric> The first base fabric of Example 2 was used as the first base fabric on which the piles were planted. <Preparation of Second Base Fabric> A polyester fiber (melting point = 260 ° C.) 15 denier × 64 mm raw cotton was used as a main fiber.
0%, 10% of low-density polyester fiber (melting point = 110 ° C.) 6 denier × 64 mm is mixed as a heat-fused fiber, a web is spun out by a card, and needle punching is performed on the web to produce a non-woven fabric (second base fabric). Manufactured. Superposed meltblown nonwoven average basis weight made of a low-melting polyester of 30 g / m ² (hereinafter MB hereinafter) so as to be laminated in the <fixed thermally bonded nonwoven> second base fabric, carried out needle punching from the MB side , MB is fixed to a web and subjected to a dry heat treatment at 190 ° C. for 1 minute to obtain a nonwoven fabric having the MB fixed thereon, and the nonwoven fabric having a winding weight of 280 g / m ² so that the MB side is the front side.
(Fixed second base fabric). <Preparation of Laminated Fabric> The MB-fixed second base fabric obtained above was pulled out from the winding tube 5 in FIG. 2 and led to nip rollers 6 and 7 via rollers. The side is directly heated by a gas burner 9 to make the surface in a molten state, and is separately pulled out from the winding tube 10 and the back surface (the surface having no pile) of the first base cloth guided to the nip roller 8 is removed. Superposition, the nip roller 7,
8 and the adhesive treatment was carried out while cooling, thereby producing the laminated automobile cushion sheet shown in FIG. The cloth speed at the time of bonding was 20 m / min. The obtained sheet has a good pile surface and excellent standing surface. Also, in the test when mounting and mounting as a cushion sheet in an automobile, the first base cloth (pile flocking base cloth) and the second base cloth There was no delamination with the (backing nonwoven fabric layer), and the cushion sheet was excellent in practicality.

Example 4 This example is another example of obtaining a laminate which is stable against repeated kneading action and is suitable mainly as a cushion sheet for automobiles. <First Base Fabric> The first base fabric of Example 2 was used as the first base fabric on which the piles were planted. <Preparation of Second Base Fabric and Fixation of Thermal Adhesive> As the second base fabric, the card web of Example 2 was used, and the card web was needle-punched, and a powder of low-melting polyester (melting point = (170 ° C.) evenly over the surface so as to be 30 g / m ^2, and perform a dry heat treatment at 190 ° C. for 1 minute to fix the powder on the surface of the second base cloth so that the powder side is the front side. Was wound up on a winding tube. <Preparation of Laminated Fabric> The obtained second base fabric was pulled out from the winding tube, and the side on which the powder was fixed was directly blown on a nip roller with a gas burner, as in the case of FIG. 2 in Example 3. While the surface is in a molten state, the back surface (the surface having no pile) of the first base fabric similarly guided on the nip roller from another winding tube paper is overlapped, heated and cooled, and then both are heated. Was performed. Cloth speed at the time of bonding is 20m
/ Min. The laminate obtained here was also stable against repeated kneading action, and became a laminate suitable as a sheet for ordinary office chair upholstery and as a sheet for vehicles.

Comparative Example 1 The second base fabric used in Example 1
A polyester-based adhesive (a mixture of a polyester 12% emulsion and a polyester resin fine powder 20 wt%) was subjected to an adhesion treatment of 100 g / m 2. This one,
First, it was dried at 120 ° C., and further heated to 150 ° C. (the melting point of the polyester resin) for laminating and bonding, and then the back side of the first base cloth on which the piles were planted was overlaid and bonded. The processing speed at this time is 3m /
Minutes. In this case, in the bonding operation, it was necessary to preheat the second base cloth in order to increase the adhesiveness. Also, after bonding with a pressure roll, the tendency of the pile to lie down could not be ruled out, resulting in poor commercial value.

[0034]

By producing a laminated fabric according to the production method of the present invention, i) the processing speed is dramatically increased. ii) The pile portion on the surface does not “pile down” due to heating and pressurizing during bonding. The effect described above is exhibited, and the laminated fabric by this method is
It is extremely excellent as a carpet material and as an interior material for automobiles, particularly as a cushion sheet.

[0035]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a laminated fabric showing an example of the laminated fabric obtained by the present invention.

FIG. 2 is a process chart showing an example of a bonding process of the laminated fabric of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 first base cloth 2 pile yarn 3 heat-fusible nonwoven fabric 4 second base cloth 5 second base cloth take-up tube 6 nip roller 7 nip roller 8 nip roller 9 burner 10 first base cloth take-up tube

Claims (11)

(57) [Claims] When producing a laminated fabric by laminating two or more layers of cloth, at least one layer of the cloth is
A heat-adhesive fiber comprising a main fiber and a polymer having a melting point or softening point lower than that of the main fiber by 20 ° C. or more at least as a surface component, and a mixed yarn containing 10 to 50% by weight of the heat-adhesive fiber. A method for producing a laminated fabric, characterized in that the fabric surface is directly heated by a flame or an electric heater, and is immediately superimposed on another fabric and pressurized at room temperature or low temperature to perform lamination. In producing a laminated fabric by laminating two or more layers of cloth, at least one layer of the cloth is
The surface portion of the dough has a polymer having a melting point or a softening point lower than that of the main fiber of the dough by 20 ° C. or more.
By using the dough containing 50% by weight and being unevenly distributed in a high proportion, the dough surface is directly heated by a flame or an electric heater, immediately superimposed with another dough and pressed at room temperature or at a low temperature to perform bonding. A method for producing a laminated fabric. When producing a laminated fabric by laminating two or more layers of dough, at least one dough surface
A nonwoven fabric or powder of ²⁰ to 50 g / m ² consisting of a thermoadhesive fiber having at least a surface side component of a polymer having a melting point or softening point lower than that of the main fiber of the fabric by 20 ° C. or more is fixed, and the fabric is bonded to the nonwoven fabric. A method for producing a laminated fabric, comprising directly heating a non-woven fabric or powder from a non-woven fabric or powder with a flame or an electric heater, immediately superimposing the fabric on another fabric and pressing at room temperature or low temperature to perform lamination. 4. The method for producing a laminated fabric according to claim 1, wherein the fabric containing the heat-adhesive fiber is a non-woven fabric. 5. A method for producing a laminated fabric, wherein the production method according to claim 4 is a method for producing a carpet or an interior material for an automobile. 6. A fiber product obtained by the production method according to claim 1. 7. A fabric comprising a first fabric on which a pile is vegetated, and a second fabric of a non-woven fabric for lining the first fabric, both of which are thermally bonded via a non-woven fabric for thermal bonding or a resin powder. 7. The carpet according to 6. 8. The method according to claim 1, wherein the first fabric on which the pile is vegetated, the second fabric of the nonwoven fabric lining the first fabric, and the nonwoven fabric for thermal bonding or the resin powder are both made of a polyester component. Item 7. A carpet according to item 6. 9. A fabric comprising a first fabric on the front side and a second fabric of a non-woven fabric for lining the first fabric, both of which are thermally bonded via a non-woven fabric for thermal bonding or a resin powder. 7. The interior material for an automobile according to 6. 10. The interior material for an automobile according to claim 9, wherein the interior material for an automobile is a cushion sheet. 11. The method according to claim 1, wherein the first fabric on the front surface side, the second fabric of the nonwoven fabric lining the first fabric and the nonwoven fabric for heat bonding or the resin powder are both made of a polyester component. An automotive interior material according to claim 9 or 10.