JPH09201481A - Interior laminate - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide an interior laminate excellent in comfort, texture, thermoforming processability, and recyclability. (1) A thermoplastic polyester elastomer in which a non-elastic polyester crimped short fiber aggregate is used as a matrix, and the melting point of the short fiber aggregate is 40 ° C. or more lower than the melting point of polyester constituting the short fibers. When,
0.01 to 0.5 g, which is composed of non-elastic polyester, in which the former, at least elastic composite fibers exposed on the fiber surface are dispersed and mixed, and the short fiber aggregate is integrated by fusion bonding of the thermoplastic polyester elastomer. The sheet-like material (A) having a density of / cm ³ and a thickness of 1 to 20 mm, and (2) the skin material (B), and the sheet-like material (A) and the skin material (B) are bonded to each other. An interior laminate which is bonded and integrated with an agent and has an air permeability of 0 to 50 cc / cm ² · sec.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a laminate for interior. More specifically, it relates to an interior laminate having a thin cushioning property, which is suitable as an interior material such as a ceiling, a door, a seat back, and a rear parcel in a vehicle or an aircraft.

[0002]

2. Description of the Related Art Conventionally, interior materials, especially interior materials for vehicles are
The cushioning material is often used by stacking a structure of a skin material in which urethane foam sheets are bonded together.
For example, in vehicles, especially automobiles, cushioning interior materials are used for door trims, ceilings, dash silencers, floor bahts, and the like.

A structure in which this urethane foam sheet is attached to a surface material is, specifically, a urethane foam sheet surface coated on the side back-coated with a resin in order to prevent misalignment of the woven fabric and prevention of thread loss of the tricot. Melt at high temperature due to flame or adhere to back coat surface using adhesive, then melt the urethane foam sheet opposite to adhesive side at high temperature due to flame again or use adhesive to make tricot or span with low basis weight It has a complicated structure in which backing cloth such as a bond is attached. That is, the skin material to which the urethane foam sheet is attached is seen from the surface, and the skin material-back coat-
It has a structure of urethane foam sheet-back base cloth,
In many cases, the urethane foam forms a thin polymer layer on both sides of the urethane foam sheet due to melt adhesion. Therefore, it is extremely difficult to reduce the manufacturing cost of the structure because of the complexity of the manufacturing process for forming the multilayer structure at present.

In addition, the urethane sheet deteriorates under the influence of light, moisture, gas, etc. when used for a long period of time, and the cushioning property gradually deteriorates. Further, since the back coat, the melt-bonded surface and the backing cloth are laminated, the structure in which the urethane sheets are bonded together lacks softness as a whole and cannot be said to have a satisfactory texture. Further, when the sheet is covered, the shape of the sheet cannot be followed and it cannot be said to be a satisfactory material as a cover material.

The urethane sheet has another problem because it uses polyurethane as a raw material. That is, the urethane sheet is flammable and, when burned, produces a toxic gas such as cyan gas or hydrogen monoxide gas, so that it is necessary to make it flame-retardant. However, if a flame retardant is mixed to such an extent that the flame retardancy standard is satisfied, the cost becomes high, the density becomes high and the weight becomes heavy, and the urethane sheet becomes hard and inevitably the flexibility decreases. In addition, the use of urethane cannot be regenerated by melting because of urethane cross-linking when it is discarded, and it also deteriorates and deteriorates the physical properties, and because it is sublime, it is difficult to reclaim it. There is. On the other hand, even if an attempt is made to incinerate, the toxic gas that is generated causes a troublesome problem that it cannot be incinerated easily.

As described above, the interior material in which the urethane foam sheet is attached to the side surface is complicated in the manufacturing process, high in cost, comfortable in use and texture, inferior in conformability to the shape of the sheet, incombustible and in use. There are many problems such as the difficulty of later disposal. Especially from the viewpoint of the recent emphasis on environmental protection,
Although there is a demand for the development of products that can be recycled,
Urethane products are not suitable for this request.

[0007]

SUMMARY OF THE INVENTION Therefore, a first object of the present invention is to provide an interior laminate which does not cause the above-mentioned various problems and problems when a urethane foam sheet is used. A second object of the present invention is to provide an interior laminate which is excellent in comfort and texture and which follows the seat shape well. A third object of the present invention is to provide an interior laminate that can be recycled after use and that does not cause a troublesome disposal process. Another object of the present invention is to provide an interior laminate which satisfies the criteria of flame retardancy for vehicles without using an amount of flame retardant as blended in the case of urethane foam sheet.

[0008]

According to the research conducted by the present inventors, the above-mentioned objects of the present invention are as follows. (1) A non-elastic polyester crimped short fiber aggregate is used as a matrix, and the short fiber aggregate contains: , 4 than the melting point of the polyester that constitutes the short fibers
An elastic composite fiber composed of a thermoplastic polyester elastomer having a low melting point of 0 ° C. or higher and a non-elastic polyester, in which the former, at least elastic composite fibers exposed on the fiber surface are dispersed and mixed, and the thermoplastic polyester elastomer is fused to form the short fiber aggregate. Integrated body, 0.01-0.5g / c
A sheet-like material (A) having a density of m ³ and a thickness of 1 to 20 mm, and (2) a skin material (B), and the sheet-like material (A) and the skin material (B) are integrated. Done and 0
It is achieved by an interior laminate having an air permeability of 50 cc / cm ² · sec. Hereinafter, the laminate for interior according to the present invention will be described more specifically. The laminated body for interior according to the present invention is mainly composed of the sheet material (A) and the skin material (B), and both are integrated. This sheet material (A) will be described first. The sheet-like material (A) has a matrix of crimped short fiber aggregates of non-elastic polyester, and a thermoplastic polyester having a melting point of 40 ° C. or more lower than the melting point of the polyester constituting the short fibers in the short fiber aggregate. The former is composed of an elastomer and a non-elastic polyester, and the former has a structure in which at least elastic composite fibers exposed on the fiber surface are dispersed and mixed and the short fiber aggregate is integrated by fusion bonding of the thermoplastic polyester elastomer. .

The sheet material (A) has a density of 0.01.
~ 0.5 g / cm ³ , preferably 0.02 to 0.4 g / cm
^3, it has a flexible compression property and is excellent in cushioning property and breathability. This sheet material (A) is 1 to 20
A thickness of mm, preferably 2-15 mm is suitable. When the thickness is less than 1 mm, the cushioning property is deteriorated, while when the thickness is more than 20 mm, the interior laminate is insufficient in flexibility and sheet shape conforming property and is unsuitable.

The sheet material (A) will be described in more detail below. The polyester crimped short fibers forming the matrix of the sheet material (A) are ordinary polyethylene terephthalate, polybutylene terephthalate, polyhexamethylene terephthalate, polytetramethylene terephthalate, poly-1,4-dimethylcyclohexane terephthalate, poly It is a short fiber made of pivalolactone or a copolymer ester thereof or a mixed fiber of those fibers, or a composite fiber made of two or more kinds of the above polymers. The cross-sectional shape of the short fibers may be circular, flat, irregular or hollow. In particular, short fibers made of polyethylene terephthalate or its copolymer are preferable.

Since the polyester crimped short fibers are fused with the low melting point fibers to form a matrix that forms the framework of the cushioning material, the polyester short staple fibers alone are required to be bulky and to exhibit repulsion resistance. To be done. A single bulkiness (JIS L-1097) is 0.5 g / cm ^2.
50 cm ³ / g or more under a load of 10 cm / g or more, and 20 cm ³ / g or more under a load of 10 g / cm ² , and more preferably 60 cm ³ or more and 25 cm ³ / g, respectively.
It is necessary to be above. When the bulkiness is low, problems such as low elasticity and compression resistance of the obtained interior laminate become significant.

The short fibers may have an average fineness of 2 denier or more, preferably 2 to 100 denier, more preferably 4 to 80 denier. When the fineness is less than 2 denier, the bulkiness is not exhibited, and the cushioning property and the repulsive force become poor. On the other hand, when it is more than 100 denier, it is difficult to make the fibers into a web, and the number of constituents of the obtained sheet-like product becomes too small, resulting in poor cushioning property.

On the other hand, the number of crimps of the polyester crimped short fibers is preferably 4 to 25 / inch, and the crimping degree is preferably 20 to 40%. If the number of crimps and the degree of crimp are too small, the bulk of the web becomes difficult to appear, and it becomes difficult to form a web, which is not preferable. In addition, it has poor cushioning and anti-reflecting properties, and has low durability. On the other hand, if the number of crimps or the degree of crimping is too large, the bulkiness of the web does not increase and only a high-density sheet-like product can be obtained, or when the web is formed, the entanglement of fibers is strong and streaky unevenness, etc. Is not preferable.

The polyester staple fiber has a fiber length of 5 m.
m or more, preferably 10 to 100 mm, particularly preferably 15 mm to 90 mm is advantageous. The content ratio of the polyester type short fibers in the sheet material is 90 to 50% by weight, preferably 85 to 55% by weight.

On the other hand, in the sheet-like material (A) of the present invention, the elastic composite fiber for fusing the short fiber aggregate as the matrix has a melting point of 40 ° C. or more lower than that of the non-elastic polyester short fiber as the matrix. At least a part of the low-melting point thermoplastic polyester elastomer has an elastic composite fiber, especially on the surface of the fiber, and at least a part of the surface is melted by heating, and the polyester-based short fiber or the elastic composite fiber is a short fiber that can be fused with each other. Say that. If this difference in melting point is 40 ° C. or less, the processing temperature becomes close to the melting point of the polyester staple fiber,
The physical properties and crimping properties of the polyester-based short fibers deteriorate, and the cushioning performance decreases, and the shrinkage during molding increases. From this point of view, the melting point of the low melting point thermoplastic elastomer is 4 more than the melting point of the polymer constituting the short fiber.
It is preferably 0 ° C. or higher, particularly 60 ° C. or higher. The melting point of such a thermoplastic polyester elastomer is, for example, 1
The temperature can range from 30 to 220 ° C.

In the sheet-like material (A), the elastic composite fiber used for forming the flexible heat fixing point which plays an important role is formed of a thermoplastic polyester elastomer and a non-elastic polyester. In this case, the former preferably occupies at least half of the fiber surface. In terms of weight ratio, the former and the latter have a combined ratio of 30/70 to 70.
It is suitable to be in the range of / 30. The form of the elastic conjugate fiber may be either side-by-side or sheath-core, but the latter is preferred. In this sheath-core type, of course, the core is inelastic polyester, but the core may be concentric or eccentric. In particular, an eccentric type is more preferable because a coiled elastic crimp is developed.

Thus, the sheet material (A) of the present invention is
During use, it is repeatedly compressed and deformed after heat fusion molding,
Moreover, in a cushioning application in which the amount of compression, that is, the amount of deformation is large (for example, 50% of the thickness), the heat fixing point is easily deformed when a deformation stress is applied, and when the deformation stress disappears, no distortion is left and the original It is necessary to easily return to the position. The fact that a large amount of deformation is added to the fiber molding cushion body means that the entanglement point composed of the low melting point polymer of the fibers constituting the fiber structure is further changed in angle, stretched or twisted. And so on. Therefore, this heat-fixing polymer is required to have a property of being largely deformed and recovered, and therefore it is preferable to be composed of a thermoplastic elastomer having a large fracture elongation and a good elongation recovery property. A polyester elastomer is particularly preferable because the matrix fiber to be heat-fixed is a polyester fiber.

As the polyester elastomer, a polyether ester block copolymer obtained by copolymerizing thermoplastic polyester as a hard segment and poly (alkylene oxide) glycol as a soft segment, more specifically, terephthalic acid, isophthalic acid, Aromatic dicarboxylic acids such as phthalic acid, naphthalene-2,6-dicarboxylic acid, naphthalene 2,7-dicarboxylic acid, diphenyl-4,4-dicarboxylic acid, diphenoxyethanedicarboxylic acid, and sodium 3-sulfoisophthalate, 1 , 4
An alicyclic dicarboxylic acid such as cyclohexanedicarboxylic acid, succinic acid, oxalic acid, adipic acid, sebacic acid, dodecanedioic acid, an aliphatic dicarboxylic acid such as dimer acid, or a dicarboxylic acid selected from these ester-forming derivatives, etc. At least one and an aliphatic diol such as 1,4-butanediol, ethylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, neopentylene glycol, decamethylene glycol, or 1,
At least one diol component selected from alicyclic diols such as 1-cyclohexadimethanol, 1,4-cyclohexanedimethanol, and tricyclodecanedimethanol, or ester-forming derivatives thereof, and an average molecular weight of about 400 to About 5000 polyethylene glycol, poly (1,2- and 1,3-propylene oxide) glycol, poly (tetramethylene oxide) glycol, copolymer of ethylene oxide and propylene oxide, copolymer of ethylene oxide and tetrahydrofuran, etc. Is a terpolymer composed of at least one of the poly (alkylene oxide) glycols.

However, from the viewpoints of adhesiveness with polyester short fibers, temperature characteristics, strength, physical properties, etc., a block copolymerized polyether polyester having polybutylene terephthalate as a hard segment and polyoxytetramethylene glycol as a soft segment is used. preferable.
In this case, the polyester portion constituting the hard segment is polybutylene terephthalate in which the main acid component is terephthalic acid and the main diol component is a butylene glycol component. Of course, a part (usually 30 mol% or less) of this acid component may be substituted with another dicarboxylic acid component or an oxycarboxylic acid component, and likewise, a part of the glycol component may be a dioxycarboxylic acid component other than the butylene glycol derivative. It may be replaced with a component. Further, the polyether component constituting the soft segment may be a polyether substituted with a dioxy component other than tetramethylene glycol. It should be noted that various stabilizers, ultraviolet absorbers, thickening and branching agents, matting agents, coloring agents, and various other improving agents may be added to the polymer, if necessary.

On the other hand, in the elastic composite fiber, the non-elastic polyester used as the counterpart component of the elastomer is selected from the polyesters constituting the crimped short fibers forming the matrix. Among them, polybutylene terephthalate is used. More preferably used.

Since the elastic composite fiber is mixed with the fiber-formed sheet material (A) and is an adhesive component for forming a fiber structure, the denier is 2 to 100 denier. Is preferred, especially 4
~ 100 denier is preferred. If the denier is small, the number of bonding points is too large, and it is difficult to provide cushioning. On the other hand, if it is too thick, the number of bonding points is too small and the resilience is too low, or it tends to come loose during use. It is preferable that the cut length is 38 to 255 mm and the number of crimps is 4 to 50 pieces / inch. If it is out of this range, it becomes difficult to mix cotton and it is difficult to form a web. In addition, the cushioning performance and compression durability of the molded product are also reduced.

The blending ratio of this low melting point elastic composite fiber is 1
Suitably 0 to 70% by weight. If the proportion of the low melting point composite fiber is less than 10% by weight, the number of adhesion points of the fiber structure will be too small, resulting in too low compression rebound and too low compression durability. On the other hand, the ratio is 70% by weight
If it becomes higher, the number of bonding points of the fiber structure is too large and only a hard cushioning property is obtained, or the low melting point fiber shrinks (generally, the low melting point fiber is Due to the heat-sealing property, it is difficult to heat-fix during production and the shrinkage is high), and it becomes difficult to obtain the shape of a predesigned molded product.

Particularly, as the sheet material (A) of the present invention,
A thermoplastic polyester having a polyester-crimped short fiber aggregate described in Japanese Patent Publication No. 3-819082 as a matrix and having a melting point of 40 ° C. or more lower than the melting point of the polyester constituting the short fibers in the short-fiber aggregate. A structure comprising an elastomer and a polyester, the former of which at least elastic composite fibers exposed on the surface of the fiber are dispersed and mixed, and the cushion and the thermoplastic polyester elastomer are fused together to integrate the short fiber aggregates. It is preferably the body. The specific contents and manufacturing method are described in the above publication.

The sheet material (A) of the present invention can be manufactured by various methods. Next, some of them will be described. That is, the sheet-like material (A) is obtained by mixing polyester short fibers and elastic composite fibers having a low melting point, opening with a card or the like to form a web, and then laminating a web or the webs, and placing it in a mold of a predetermined shape. It is obtained by packing a fixed amount of web, compression and heat molding. In addition, sandwiching laminated webs, etc. in a conveyer consisting of a flat plate composed of a patching plate or caterpillar type upper and lower punching plates, pressurizing and heating at a temperature higher than the melting point of the elastic composite fiber and lower than the melting point of the polyester staple fiber. During heating or immediately after heating, it is compressed vertically or horizontally to press or heat at least a part of the entanglement points between the elastic composite fibers and polyester short fibers or between the elastic composite fibers. There is a method of obtaining a sheet-like material (A) having a predetermined shape while treating and heat-sealing.

The interior laminate of the present invention is a laminate of the sheet material (A) and the skin material (B), and both are integrated. The skin material (B) may be one that is usually used as a skin for interior materials, and is preferably in the form of cloth. As the skin material (B), it is desirable that the elongations in the longitudinal direction and the transverse direction are each 1% to 100%, preferably 5% to 50%. When the elongation is less than 1%, it is difficult to follow the change in shape, whether the surface is provided with an uneven shape or the cushioning property is used as the interior material. On the other hand, when the elongation exceeds 100%, the advantage that the elongation further increases does not increase.

Cloths such as woven fabrics, knitted fabrics and non-woven fabrics are suitable as the skin material (B).
Synthetic fibers such as polyester fibers and polyamide fibers may be mentioned, but polyester fibers are preferred. The fabric weight of the skin material (B) is preferably in the range of 50 to 500 g / m ² . Specific examples of the skin material (B) include pile fabrics represented by moquette, fabrics such as jacquard and dobby; and knitted fabrics such as double russell, tricot and circular knit.

The above-mentioned sheet material (A) and skin material (B)
For integration with, there is the use of a needle-punching method or the use of a low melting point type adhesive that melts by heat, but the latter is more advantageous. As the adhesive used in that case,
It may be in the form of powder, fibrous web or film, and the melting point of the adhesive is suitably 50 to 250 ° C, preferably 100 to 230 ° C. It is more advantageous for the adhesive to have a melting point of 20 ° C. or more lower than the melting point of the thermoplastic polyester elastomer forming the elastic composite fibers of the sheet (A).

The type of polymer forming the adhesive is
Examples include, but are not limited to, polyesters, polyamides, polyurethanes, or polyvinyl alcohols.

In order to integrate the sheet-like material (A) and the skin material (B) with an adhesive, the above-mentioned adhesive is interposed at the interface between the two and the adhesive is heated to melt the adhesive. To be done. In particular, the bonding can be performed together with the molding of the interior laminate as described below.

The interior laminate of the present invention has an air permeability of 0.
~ 500 cc / cm ² · sec, preferably 0-30 cc /
It has a range of cm ² · sec. The sheet-like material (A)
The skin material (B) and the skin material (B) each have good air permeability, and even if they are laminated, the air permeability is still good. When such a breathable laminate is used as an interior material, dust and dirt accumulate on the surface of the interior material with the passage of time to impair aesthetics.

Therefore, it is desirable that the interior laminate of the present invention has an air permeability within the above range. As a method for suppressing the air permeability within the above range, as described above, as the adhesive, for example, a fibrous web or film is used to bond the sheet-like material (A) and the skin material (B) at the same time,
This can be achieved by forming a layer of adhesive at the interface between the two. Moreover, the simplest method is to form a film layer on the sheet-like material (A) and the skin material (B) to form a laminate. This film layer can be laminated between the sheet material (A) and the skin layer (B) or on the surface of the sheet material (A) which is not in contact with the skin layer (B). That is, when laminating a film layer, (i) skin layer (B) / film layer / sheet material (A) or (ii) skin layer (B) / sheet material (A) /
It can be in the form of any laminate of film layers.

The film suitable for use in the interior laminate of the present invention preferably has a thickness of 1 μ to 500 μ, preferably 20 μ to 100 μ,
The polymer that constitutes the film is a polyester type,
Examples include polyamide-based and polyurethane-based. Adhesion between the film and the sheet material (A) or the skin material (B) is
This can be done by using the above-mentioned adhesive.

In the laminate for interior according to the present invention, the sheet-like material (A), the skin material (B) and, if necessary, a film or an adhesive are arranged in a predetermined order, and heated and compressed in a molding machine to bond them. It is possible to form a desired shape at the same time by integrating with. It is also possible to make a predetermined laminated structure in advance and heat and compress it to form it into a desired shape. In particular, the sheet-like material (A) in the laminate of the present invention has suitable cushioning properties, as well as moldability and shape-retaining properties. Although it is basically in the form of a plate, it is easy to form the interior material as a whole or in a curved shape as well as a shape having a change in thickness, depending on the purpose of use. The change in thickness is 3 when the maximum thickness is 100%.
It can range from 0% to 90%, preferably from 40% to 80%. Due to the change in thickness, the laminate for interior has an uneven shape when viewed from the surface of the skin material (B).

The interior laminate of the present invention has a total thickness in the range of 1.5 to 20 mm, preferably 2 to 15 mm, and has a thickness change as described above, and the thickness change is caused by the skin. It is desirable that the material (B) has an uneven shape when viewed from the surface. The changes in the overall shape and surface thickness are appropriately determined according to the purpose and application of the interior laminate.
For example, when it is used as an interior material for automobile ceilings, doors, seat backs, or rear parcels, it is formed into a shape corresponding to each shape and is given an uneven shape.

The sheet material (A), the skin material (B) and, if necessary, the film in the laminate for interior according to the present invention are substantially all made of polyester, particularly polyethylene terephthalate or a copolymerized polyester mainly containing it. It is easy to configure as a material, and it is possible to form 95% by weight or more, preferably 98% by weight or more of the entire laminate with polyester. Thus, the laminate of the present invention can be easily recycled after use and recovered as a polymer, and can be reused easily. Therefore, the laminate of the present invention has an excellent advantage that it can be easily used for recycling and does not adversely affect the environment.

[0036]

Hereinafter, the present invention will be described in detail with reference to examples. In the examples, the evaluations of "air permeability" and "thermoformability" were carried out according to the following methods. (1) Evaluation of air permeability: Measured by the Frangill method. The unit is cc / cm ² · sec. (2) Evaluation of thermoformability: When a laminate (thickness: 10 mm) was heated and compressed by a hot pressing method (250 ° C. × 3 minutes) to partially form a thickness of 4 mm (thickness change rate: 40%). The shape retention and the appearance of the obtained laminate were observed, and good ones were indicated by ◯.

Examples 1 to 6 (i) Preparation of sheet material (A) Fineness mainly composed of polyethylene terephthalate 12 denier fiber length 64 mm crimp number 8 / inch crimp rate 13%
The non-elastic fiber having a hollow round cross section and the polyetherester elastomer having a melting point of 173 ° C. as the sheath component and the polybutylene frate as the core component have a fineness of 9 denier and a core-sheath elastic composite fiber with a length of 64 mm in a weight ratio of 70:30 The mixture is mixed at a ratio, opened with a hopper feeder, opened with a roller card to form a web with a cross-layer, and compression-molded in a dry heat atmosphere at 190 ° C to give a thickness of 10 mm and a density of 0.05.
A sheet-like material (A) of g / cm ³ was prepared.

(Ii) Preparation of skin material (B) A 100% polyethylene terephthalate fiber (fineness 3 denier, fiber length 51 mm) was made into a non-woven fabric by a needle punching method to prepare a skin material (B) having a target of 200 g / m ² . (Iii) Film The following film was used. (A) Polyethylene terephthalate film having a thickness of 70 μ (mass 50 g / m ² ) (b) Thickness 70 μ (mass 50)
Polyurethane film of g / m ² ) (iv) Laminated body Using the above (i) sheet-like material (A), (ii) skin material (B) and optionally (iii) film, laminated with the following constitution respectively Then, they were thermoformed to obtain an integrated laminate.

Prototype-1: The sheet material (A) and the skin material (B) were integrated by needle punching. Prototype-2: the sheet-like material (A) and the skin material (B),
A hot-melt film [a film made of polyester having a melting point of 140 ° C. and having a thickness of 50 μm (mass: 30 g / m ² )] was laminated on the interface. Trial manufacture-3: a sheet-like material (A) and a skin material (B),
Hot melt powder [polyester particles having a melting point of 140 ° C. (particle size 100 μ)] was dispersed and stacked on the interface at a packing density of 20 g / m ² . Prototype-4: Sheet-like product of the integrated product of Prototype-1 (A)
Overlap the polyester film on the side surface, and in the meantime, make a trial-
The same hot melt powder used in 3 was dispersed at the same density. Prototype-5: Sheet-like product (A) of the integrated product of Prototype-1
A polyester film was overlaid on the side surface. Prototype-6: Sheet-like product (A) of the integrated product of Prototype-1
Put a polyurethane film on the side surface and make a prototype between them-
The same hot melt powder used in 3 was dispersed at the same density. 205 for each of the prototypes-1 to 6
Thermoforming was carried out for 3 minutes at 0 ° C. so that the thickness was partially 4 mm.

(V) Evaluation of Laminated Product The results of evaluating each of the obtained laminated products are shown in Table 1 below.

[0041]

[Table 1]

[0042]

INDUSTRIAL APPLICABILITY The interior laminate of the present invention is excellent in comfort, texture and thermoformability and can be composed substantially of polyester, and can be easily recycled after use. Therefore, it is highly useful as an interior material for vehicles and aircraft, especially as a cushioning interior material for ceilings, doors, seat backs, rear parcels and the like.

Claims (8)

[Claims] (1) A thermoplastic polyester having a non-elastic polyester crimped short fiber aggregate as a matrix, wherein the short fiber aggregate has a melting point of 40 ° C. or more lower than the melting point of the polyester constituting the short fibers. An elastomer,
0.01 to 0.5 g, which is composed of non-elastic polyester, in which the former, at least elastic composite fibers exposed on the fiber surface are dispersed and mixed, and the short fiber aggregate is integrated by fusion bonding of the thermoplastic polyester elastomer. The sheet-like material (A) having a density of / cm ³ and a thickness of 1 to 20 mm, and (2) the skin material (B), and the sheet-like material (A) and the skin material (B) are integrated. And 0 to 50c
An interior laminate having an air permeability of c / cm ² · sec. 2. The laminate for interior according to claim 1, wherein the sheet material (A) and the skin material (B) are bonded and integrated with an adhesive. 3. A film is laminated between the sheet material (A) and the skin material (B) or on the surface of the sheet material (A) which is not in contact with the skin material (B). The laminate for interior according to claim 1 or 2. 4. The laminate for interior according to any one of claims 1 to 3, wherein the skin material (B) has a longitudinal and lateral elongation of 1 to 100%, respectively. 5. The laminate for interior according to any one of claims 1 to 4, wherein 95% by weight or more of all materials are formed of polyester. 6. The laminate for interior according to claim 1, which is obtained by molding by heating and compression. 7. The laminate for interior according to claim 1, which has a total thickness of 1.5 to 20 mm and has a change in thickness. 8. The laminated body for interior according to claim 1, which is for vehicles or aircraft.