JP2019093638A - Skin material and interior material for vehicle - Google Patents

Abstract

To provide a skin material having a prescribed design surface formed on a surface of a substrate sheet by a specific processing material sheet laminated on the substrate sheet, and an interior material for a vehicle using the same.SOLUTION: A skin material 1 has a substrate sheet 10 constituting a surface layer, and a plurality of processing material sheets 20 laminated on the substrate sheet 10 and constituting a rear surface layer, in which the processing material sheet 20 are laminated separately each other, and a design surface corresponding to a shape of a peripheral part is formed on a surface of the substrate sheet 10 by a separation part 20g between neighboring processing material sheet 20 each other (a side thereof is defined as the peripheral part). The processing material sheet 30 has a recess 30g formed toward the substrate sheet 10, and the design surface corresponding to the shape of a peripheral part is formed on the surface of the substrate sheet 10 by an edge part 30e on a substrate sheet side of the recess 30g (this is defined as the peripheral part).SELECTED DRAWING: Figure 1

Description

  The present invention relates to a skin material and a vehicle interior material provided with a skin layer formed using the skin material.

  Heretofore, a skin material constituting a skin layer such as an interior material for a vehicle is enhanced in design by providing an embossed pattern, an uneven shape and the like on the surface. As a method of applying an embossed pattern to the surface material, for example, after heat softening the material of the surface smooth surface material, it is vacuum formed using a mold in which the embossed pattern is engraved, and the embossed pattern on the surface of the mold simultaneously The method of transcribing | transferring to the material surface is mentioned (for example, refer patent document 1). In the molding method described in Patent Document 1, a cushioning material is placed on the embossed pattern portion of the surface of the female mold, and the embossed pattern is transferred by pressing the heat-softened skin material with a male mold. Be done. As a result, the portion on which the cushioning material is placed is particularly pressure-molded, and the high and low difference emboss pattern can be well transferred.

Japanese Patent Application Laid-Open No. 62-130824

  However, in the molding method described in Patent Document 1, since processing is performed from the surface side of the skin material, a constant graphic pattern appears on the surface regardless of the change in the shape of the skin material. That is, since the machined surface is the design surface as it is, the graphic pattern is visually recognized similarly whether the surface material is flat or curved, and the design of the surface material is different due to the difference in three-dimensional shape. It is hard to make a difference.

  For example, as shown in FIG. 8, when a plurality of groove sections 90 g having a plurality of rectangular sections with the same shape are formed in a flat plate-like skin material 9 made of a sheet-like skin material 90, the skin material 9 is curved to be curved. When it is formed, the shape is deformed so that the opening side is widened to the groove portions 91g and 92g by the curvature. Specifically, the side surface 91f of the groove 91g is slightly inclined so as to be wider on the opening side, that is, on the side of the edge 91e than the edge 90e, as compared to the side 90f of the groove 90g. Further, the side surface 92f of the groove 92g is inclined so as to be further widened on the opening side, that is, on the side of the edge 92e. In other words, the side surface 90f of the groove 90g is formed substantially perpendicular to the bottom, but due to the curvature, the side 91f of the groove 91a is deformed so that the angle with the bottom is slightly obtuse. Furthermore, the side surface 92f of the groove 92a is deformed to be more obtuse. However, even if the curved surface area is compared with the flat surface area, the shape of the groove is not significantly changed, and it is visually recognized as a similar design. This is considered to be attributable to direct visual recognition of the surface on which the groove is formed.

  The present invention has been made in view of the above-mentioned circumstances, and a three-dimensional shape change provided on the back surface side of the skin material makes it possible to change the design visually recognized on the surface side, and using the skin material An object of the present invention is to provide a vehicle interior material provided with the formed skin layer.

The present invention is as follows.
1. A surface material comprising: a base material sheet constituting a surface layer; and a plurality of processing material sheets laminated on the base material sheet and constituting a back surface layer,
The processing material sheets are stacked apart from each other, and a design surface corresponding to the shape of the peripheral portion is formed on the surface of the base sheet by the peripheral portions of adjacent processing material sheets. Feature skin material.
2. The base sheet is made of fabric, natural leather, synthetic leather or thermoplastic resin, and the processing material sheet is made of natural leather, synthetic leather or thermoplastic resin. The skin material as described in.
3. The thermoplastic resin sheet is further laminated between the base sheet and the processing material sheet. Or 2. The skin material as described in.
4. A surface material comprising: a base material sheet constituting a surface layer; and a processing material sheet laminated on the base material sheet and constituting a back surface layer,
A recess is formed in the processing material sheet toward the base sheet, and the peripheral edge of the recess on the base sheet side corresponds to the shape of the peripheral edge on the surface of the base sheet A surface material characterized in that a design surface is formed.
5. The base sheet is made of fabric, natural leather, synthetic leather, or thermoplastic resin, and the processed sheet is made of thermoplastic resin. The skin material as described in.
6. Said 1. To 5. An interior material for a vehicle comprising a skin layer formed using the skin material according to any one of the above.

The skin material of the present invention is a skin material provided with a base material sheet constituting the surface layer and a plurality of processing material sheets laminated on the base material sheet and constituting the back surface layer, and the adjacent material sheets Each peripheral edge forms a design surface corresponding to the shape of the peripheral edge on the surface of the base sheet. Thereby, the design changes due to the three-dimensional shape change of the surface material. Furthermore, it can also be a design surface that makes it feel gradation depending on the degree of deformation of the surface material.
In addition, when the substrate sheet is made of fabric, natural leather, synthetic leather or thermoplastic resin, and the processed material sheet is made of natural leather, synthetic leather or thermoplastic resin, the shape of the peripheral portion of the processed material sheet It can be a clear design surface corresponding to
Furthermore, when a thermoplastic resin sheet is further laminated between the base material sheet and the processing material sheet, the thermoplastic resin sheet intervenes to give an impression of the design formed on the surface of the base material sheet. Can be different.

Another surface material of the present invention is a surface material including a base material sheet constituting a surface layer and a processing material sheet laminated on the base material sheet and constituting a back surface layer, and is formed on the processing material sheet A design surface corresponding to the shape of the peripheral portion is formed on the surface of the substrate sheet by the peripheral portion of the concave portion on the substrate sheet side. Thereby, the design changes due to the three-dimensional shape change of the skin material. Furthermore, it can also be a design surface that makes it feel gradation depending on the degree of deformation of the surface material.
In addition, when the base material sheet is made of fabric, natural leather, synthetic leather, or a thermoplastic resin, and the processed material sheet is made of a thermoplastic resin, predetermined concave portions can be easily formed in the processed material sheet, It can be a clear design surface corresponding to the shape of the peripheral portion of the workpiece sheet.

  The vehicle interior material of the present invention comprises a skin layer formed using the skin material of the present invention and other present inventions. Therefore, depending on the type of the interior material and the portion, the interior material may have a design with a clearer or slightly fainter impression and a slightly different impression.

It is a typical sectional view of an example of a skin material. It is a typical sectional view of other examples of a skin material. It is a typical sectional view of other examples of a skin material. It is a typical sectional view of other examples of a skin material. It is a schematic cross section for demonstrating a mode that the design surface of the surface material of FIG. 1 is formed. It is a schematic cross section for demonstrating a mode when the skin material of FIG. 1 formed the curved surface. It is the perspective view which saw the surface material from the design surface side. It is a schematic sectional drawing for demonstrating a mode when the conventional skin material pressed and processed from the surface side formed a curved surface.

Hereinafter, the present invention will be described in detail with reference to the drawings.
The matters shown here are for illustrative purposes and illustrative of the embodiments of the present invention. It is stated for the purpose of providing what appears to be the most effective and readily understood description of the principles and conceptual features of the present invention. In this regard, it is not intended to show the structural details of the present invention beyond what is needed for a fundamental understanding of the present invention. The description taken in conjunction with the drawings will make it apparent to those skilled in the art how certain aspects of the present invention may be embodied.

[1] Skin Material The skin material 1 (see FIG. 1) of the present invention comprises a substrate sheet 10 constituting a surface layer, and a plurality of processed material sheets 20 laminated on the substrate sheet 10 and constituting a back surface layer; Equipped with
A plurality of processing material sheets 20 are stacked apart from one another, and there is a separation portion 20g between adjacent processing material sheets 20, and a side surface 20f of each processing material sheet 20, in particular, a base of the side surfaces 20f. The edge portion 20e (the peripheral portion of the processed material sheet 20 is formed by the side surface 20f and the edge portion 20e), which is a contact point with the lower surface of the material sheet 10, forms the separated portion 20g on the surface of the substrate sheet 10. A corresponding design surface is formed.

Another surface material 2 (see FIG. 2) of the present invention includes a base material sheet 10 constituting a surface layer, and a processed material sheet 30 laminated on the base material sheet 10 and constituting a back surface layer.
A recess 30g is formed on the processing material sheet 30 toward the base sheet 10, and an edge portion 30e (this edge portion is positioned at a corner on the lower surface side of the base sheet 10 of the side surface 30f of each recess 30g) A design surface corresponding to the shape of the recess 30g is formed on the surface of the base sheet 10 by the 30e corresponding to the peripheral edge of the recess 30g on the substrate sheet 10 side.

(1) Base Material Sheet The base material sheet 10 is a sheet which constitutes a surface layer provided with a design surface of the skin materials 1 and 2. It is possible to have a design formed by laminating the processed material sheets 20 and 30 on the surface of the substrate sheet 10 without giving a design, but the design is previously formed on the surface of the substrate sheet 10 In combination with the design formed by laminating the processed material sheets 20 and 30, the surface materials 1 and 2 with higher designability can be obtained. The material of the base sheet 10 is not particularly limited, and a fabric, a natural leather, a synthetic leather, a thermoplastic resin, or the like can be used. Moreover, the thickness of the base material sheet 10 is not specifically limited, either, According to the objective, a use, etc., it can set suitably.

  The fibers constituting the fabric (fabric, fabric, knit) include, for example, natural fibers such as cotton, hemp, wool and silk, regenerated fibers such as cupra and rayon, semi-synthetic fibers such as acetate, polyester fibers, acrylic fibers Fibers, synthetic resin fibers such as polyamide fibers, polyolefin fibers and the like, composite fibers using these fibers, mixed cotton and the like can be mentioned.

  As a fabric, a textile is preferable. In the case of a woven fabric, the degree of freedom in changing the color tone and the pattern is high, and a detailed pattern can be expressed. Moreover, the unevenness | corrugation by a weave structure can also be provided and it can be set as a design surface with a high-class feeling. The unevenness due to the woven structure can be provided, for example, by using a high expansion yarn and a low expansion yarn as at least one of the warp yarn and the weft yarn. Furthermore, the unevenness can be further enhanced by using, as the low expansion and contraction yarn, a yarn having a dark color as compared with the high expansion and contraction yarn or a yarn having a higher glossiness than the high expansion and contraction yarn.

  Natural leather is not particularly limited, but, for example, mammals such as cows, pigs, horses, deer, sheep, goats, kangaroos, peccaries, kapiparas, tegou, reptiles such as crocodiles, snakes, lizards and sea turtles, and birds such as ostrich The one that peeled off skin etc. are mentioned. Among these, cow, pig and sheep leather are preferable, and cow leather is more preferable. One type of leather may be used, or two or more types may be used in combination. Natural leather has a high class feeling, is hard to deteriorate, and is excellent in durability. In addition, natural leather changes its color and touch by continuing to be used for a long time, and has the feature that deep taste is produced. Furthermore, the leather may be subjected to processing such as tanning processing, enameling processing, processing with oil and wax, etc., water repellent processing, waterproof processing, embossing processing and the like. Also, for example, coloring processing such as white, red, black, brown, blue, yellow and the like may be performed.

  Synthetic leather can also give a high-class feeling comparable to natural leather. Although this synthetic leather is not particularly limited, a woven fabric, a knitted fabric, a non-woven fabric, etc. consisting of polyamide fiber, polyurethane fiber, polyolefin fiber, blend fiber of polyolefin fiber and cotton, etc. is usually used as a base cloth and polyurethane on the base cloth surface After applying a synthetic resin such as a synthetic resin, it is possible to further apply a modified nylon, a polyurethane resin, a polyacrylic resin or the like as a finishing layer, and using a cocoon-shaped paper, a synthetic leather having an appearance similar to natural leather can be obtained. Further, if necessary, the surface may be subjected to processing such as embossing or embossing.

  The thermoplastic resin is not particularly limited as long as it can be molded into a sheet by a known molding method, and a wide variety of resins can be used. For example, polyacrylic resin, polyurethane resin, polyolefin resin, etc. Can be mentioned. Among these, polyacrylic resins and polyurethane resins are preferable from the viewpoint of processability, flexibility of the surface material, and the like. Furthermore, in the case of a thermoplastic resin, the surface can be easily provided with an uneven pattern, and the design can be enhanced. In order to form an uneven | corrugated pattern, the manufacturing method which has a process with the process accompanied by the lamination embossing process which a draw roll and the base material sheet 10 are contacted, and it heats and pressurizes can be applied. Further, a coloring agent may be blended in the thermoplastic resin. A desired hue can be given by mix | blending a coloring agent with the base material sheet 10. As shown in FIG. Examples of the colorant include dyes, pigments, and metal particles such as pearl particles and aluminum powder. Among them, pigments are preferable in terms of durability, weather resistance, and the like.

(2) Processed Material Sheet The processed material sheets 20 and 30 are sheets which are laminated on the base material sheet 10 and constitute a back surface layer. The plurality of sheets of the work material sheet 20 are arranged to be separated from each other and stacked. On the other hand, the processing material sheet 30 is laminated as a single sheet, and a recess (groove) 30 g is formed toward the base sheet 10.

  The material of the processing material sheet 20 is not particularly limited, and similar to the material of the base sheet 10, fabric, natural leather, synthetic leather, thermoplastic resin, or the like can be used. Moreover, the material of the processing material sheet 20 may be the same as or different from the material of the substrate sheet 10. On the other hand, a thermoplastic resin is used because the workpiece sheet 30 is usually formed by a method such as heating with a press mold, pressurization, and the like. The processing material sheet 30 may be a thermoplastic resin of the same type as the base sheet 10, or may be a different type of thermoplastic resin.

  Each shape of the workpiece sheet 20 and the separation distance between the adjacent workpiece sheets 20 are designed on the surface of the base sheet 10 as a design surface having a design formed by the shape and separation distance of the workpiece sheet 20 There is no particular limitation as long as Further, the thickness is not particularly limited as long as the surface of the base sheet 10 can be a predetermined design surface. The shape of the workpiece sheet 20 can be, for example, a square, a rectangle, a rhombus, or the like. Furthermore, the separation distance between the adjacent work material sheets 20 can be, for example, about 1 to 5 mm in terms of design. Moreover, it is preferable that the separation distance is not largely different depending on the place, and it is more preferable that the separation distances are substantially the same. Moreover, the thickness of the processing material sheet 20 is not specifically limited, either, For example, it can be set as the thickness comparable as the base material sheet 10. FIG.

  The processing material sheet 30 is laminated as a single sheet, and a recess (groove) 30 g is formed toward the base sheet 10. The recess 30 g is formed by heating and pressing the processed material sheet 30 after the processed material sheet 30 is stacked on the base material sheet 10. The planar shape of the concave portion 30g is not particularly limited as long as the surface of the base sheet 10 can be a predetermined design surface. The planar shape of the recess 30g can be, for example, linear, curved, zigzag, or the like.

  Furthermore, in order to form a predetermined design surface, the width of the concave portion 30g can be about 1 to 5 mm, and it is preferable that they do not greatly differ depending on the location, and it is more preferable that they are substantially the same. Moreover, although the recessed part 30g is normally formed by the method of the heating by a press type | mold, pressurization, etc., the thin layer of the workpiece material sheet 30 will remain in the bottom part of the recessed part 30g (refer FIG. 2). Furthermore, the thickness of the processing material sheet 30 is not particularly limited, and can be, for example, about the same as the thickness of the base sheet 10. Alternatively, a resin foam such as a polyurethane resin foam can be used as the processing material sheet 30, and in this case, the processing material sheet 30 is often thicker than the base material sheet 10.

  Examples of a method of laminating the processing material sheets 20 and 30 on the back surface of the base sheet 10 include hot press, bonding with an adhesive, and the like. In the case of the heat press, depending on the respective materials, the processing material sheets 20 and 30 can be directly bonded to the back surface of the base material sheet 10 and laminated. Furthermore, using a hot melt film made of polyester, polyurethane, polyamide, polyethylene vinyl acetate copolymer, styrenic thermoplastic elastomer, etc., the hot melt film is interposed between the substrate sheet 10 and the processing material sheets 20, 30. And heating to a temperature higher than the melting point of the hot melt film, and pressure bonding may be performed. The heating temperature and pressure can be appropriately selected according to the hot melt film used for bonding.

  On the other hand, when an adhesive is used, the adhesive is applied to at least one of the back surface of the base sheet 10 and the surface of the processed material sheets 20 and 30, and then the base material sheet 10 and the processed material sheets 20 and 30 are laminated. And press, if necessary, heat and bond. As a method of applying the adhesive, a general method such as a brush, a spray, a roll coater or the like can be appropriately adopted.

(3) Sheets Other than Substrate Sheet and Processed Material Sheet The surface material 1 of the present invention and the surface material 2 of the present invention appropriately laminate other sheets such as a thermoplastic resin sheet according to the purpose and application. It can be in the form of The place where the other sheet is laminated is not particularly limited, and may be laminated between the base sheet 10 and the processing material sheet 20 (refer to the intervening sheet 40 in FIG. 3). (See additional sheet 40 in FIG. 4). The intervening sheet 40 and the additional sheet 40 may be laminated together, but usually, it is not necessary, and either one is laminated. Further, the material, thickness and the like of the other sheets are not particularly limited, and may be appropriately set in consideration of the processability, the designability, the flexibility, and the like of the surface materials 1 and 2 and the use.

  As other sheets, soft sheets are often laminated, and the material is not particularly limited, but polyurethane foam, polystyrene foam, polypropylene foam, polyethylene terephthalate foam, phenol resin foam, silicone resin Examples thereof include resin foams such as foams, urea resin foams and acrylic resin foams. This other sheet can be laminated in the same manner as the method of laminating the processing material sheets 20 and 30 on the back surface of the base sheet 10.

(3) Functions and effects The functions and effects of the surface material of the present invention will be described below, but in the process of forming the design surface and the functions and effects when the surface of the surface material forms a curved surface It is similar.
In the surface material 1 of the present invention, as shown in FIG. 5A, the surface material 1 is laminated on the base material sheet 10 forming the surface layer and the base material sheet 10, and the processing material sheet 20 forming the back surface layer. And the adjacent processing material sheets 20 are stacked apart from each other (refer to the separation portion 20g).
FIG. 5A shows a state immediately after laminating the base material sheet 10 and the processing material sheet 20, and as time passes, as shown in FIG. 5B, the base material sheet 10 positioned above the separated portion 20g. Becomes a concave surface 10a recessed from the surface 10s.

  Moreover, the convex part 10e corresponding to the edge part 20e of the process material sheet 20 is formed in the base material sheet 10, and this convex part 10e becomes a slightly rounded curved surface. Thereby, the concave surface 10a and the convex part 10e which forms the outline are formed in the surface of the base material sheet 10, and this is visually recognized as a pattern and becomes a design surface. In addition, the shape of the convex part 10e and its vicinity is a shape which can not be formed by the press from the surface 10s side of the base material sheet 10. FIG.

  Furthermore, as shown in FIG. 5C, when the surface material 1 is curved toward the work sheet 20, the base sheet 10 at the top of the separated portion 20g is slightly stretched, and the concave surface 11a and its lower part are stretched. The thickness between the bottom surface 11b is slightly reduced, and a concave surface 11a and a convex portion 11e as shown in FIG. 5C are formed. And the convex part 11e becomes a smoother curved surface more rounded compared with the convex part 10e. As a result, the surface of the substrate sheet 10 has a shape in which the concave surface 11a and the convex portion 11e forming the outline thereof are formed on the substrate surface 10s, and this is more visually recognized as a pattern and is clearer It becomes a design side. Thus, the shape of the ridges 11e formed by the action of the edge portion 20e of the processed material sheet 20 due to the curving of the surface material 1 is unique to the surface material of the present invention.

  Further, as shown in FIG. 5D, when the skin material 1 is further curved toward the side of the work sheet 20, the base sheet 10 at the top of the separated portion 20g is further stretched, and the concave surface 12a and its surface The thickness between the bottom surface 12b of the lower part becomes smaller, and the concave surface 12a and the convex part 12e as shown in FIG. 5 (d) are formed. And the convex part 12e becomes a more rounded gentle curved surface compared with the convex part 11e. Thereby, the surface of the substrate sheet 10 has a shape in which the concave surface 12a and the convex portion 12e forming the contour thereof are formed on the substrate surface 10s. In this case, depending on the degree of curvature, the pattern may be recognized more strongly, and the design surface may be clearer, or the convex portion 12e may become slightly unclear and a gradation effect may be exhibited.

  The above-mentioned effect is an example, and differs depending on the difference in combination of the material, thickness and the like of each of the base material sheet and the work material sheet. For example, when the base material sheet is a soft material and the work material sheet is a hard material, the effect of the edge of the work material sheet is greater. On the other hand, when the base material sheet is a hard material and the work material sheet is a soft material, the effect of the edge tends to be small.

[2] Vehicle Interior Material The vehicle interior material of the present invention uses the skin material of the present invention and other skin materials of the present invention as a skin material to be laminated on a base material of a vehicle interior material. This vehicle interior material is not particularly limited, and, for example, seat back, door trim, roof trim, floor trim, luggage trim, trunk trim, rear side trim, rear parcel shelf, instrument panel, package tray, pillar garnish, switch base, Quarter panel, arm rest, etc. may be mentioned. Further, in the curved surface portions of these vehicle interior materials, the effects as described in FIGS. 5 (c) and 5 (d) are exhibited.

  The skin material of the present invention and the other present invention exhibits particularly excellent design in the curved surface portion as described above. Therefore, in the interior materials, particularly where the design of the curved portion is important, for example, curved portions such as seat backs, door trims, roof trims, etc., the curved portion is particularly prominent, and the skin of the present invention and other inventions The effect of using wood is large. For example, the seat back has a structure in which a back pad made of polyurethane foam, which is a cushioning material, is mounted on a back frame forming the frame, and the back pad is covered with a skin material. And, from the front surface to the side surface of the back, since the surface shape changes from a flat surface to a curved surface, the use of the skin material of the present invention and the other present invention brings about particularly remarkable effects and effects. Ru.

Hereinafter, the skin material of the present invention will be more specifically described by way of examples.
Example 1
The skin material 1 of Example 1 is provided with the base material sheet 10 which comprises a surface layer, and the several process material sheet | seat 20 which is laminated | stacked on the base material sheet 10 and which comprises a back surface layer like FIG. The base sheet 10 is a sheet-like natural leather having a thickness of 1.2 mm. Further, the processed material sheet 20 is also a substantially uniform sheet-like natural leather having a thickness of 1.2 mm. The workpiece sheet 20 is vertically and horizontally separated from each other by a predetermined dimension, and a separation portion 20g is formed. An inner side surface 20f of the separated portion 20g is perpendicular to the base sheet surface 10s, and an edge portion 20e is formed at the upper end portion.

  The base sheet 10 and the processing material sheet 20 are joined using an adhesive, and at the time of joining, as shown in FIG. 5A, the surface 10s of the base sheet 20 is a flat, and the base sheet 20 The presence of the processed material sheet 20 was not visible from the side of. However, when observed after several hours, as shown in FIG. 5 (b), the concave flat surface 10 a is visually recognized on the surface 10 s of the base sheet 10 at the top of the separated portion 20 g. Further, as shown in FIG. 7, when observed from the surface side of the base sheet 10, the concave flat surface 10a is visually recognized as a groove pattern in the vertical and horizontal directions, and a design surface corresponding to the groove pattern is formed on the surface 10s of the base sheet 10. The

  Moreover, when the surface material 1 was curved to the side of the work material sheet 20 as shown in FIG. 6, in the flat portion, the base material sheet 10 at the top of the separated portion 20 g has a concave surface recessed from the surface 10 s. 10a (and the convex portion 10e) were formed. On the other hand, the concave surface 11 a and the convex portion 11 e were formed at the portion where the surface material 1 was curved toward the side of the work material sheet 20. And the convex part 11e was a more rounded gentle curved surface compared with the convex part 10e.

  Furthermore, in the more curved portion, the concave surface 12a and the convex portion 12e are formed on the surface of the base sheet 10, and the convex portion 12e is more rounded than the convex portion 11e. It was a gentle curved surface. That is, while being curved more greatly, the concave flat surface and the ridges form a more gentle aspect, and a gradation effect is also exhibited. Moreover, since the base material sheet 10 is natural leather, while being excellent in a high-class feeling, the design surface which changed delicately was able to be formed.

Example 2
As shown in FIG. 2, the surface material 2 of Example 2 includes the base material sheet 10 constituting the surface layer, and the processed material sheet 30 laminated on the base material sheet 10 and constituting the back surface layer. It is joined using an adhesive. The base sheet 10 is a sheet-like natural leather having a thickness of 1.2 mm. On the other hand, the processing material sheet 30 is a foamed polyurethane sheet having a thickness of 10 mm. A groove 30g having a trapezoidal cross section is formed in the longitudinal and lateral directions in the workpiece sheet 30, and the groove 30g is formed by a heat press, and the inner side surface 30f of the groove 30g forms an obtuse angle with the base sheet 10 An edge 30e is formed at the upper end.

Moreover, compared with the processed material sheet 10 of the surface material 1, the processed material sheet 30 of the surface material 2 is soft and differs in a thicker point. Therefore, although the effect of the surface material 2 is substantially the same as that of the surface material 1, since the processed material sheet 30 is a soft material, the effect of the edge portion 30e on the base material sheet 10 is the case of the surface material 1 In contrast to the above, the surface change due to the formation of the concave flat surface and the convex portion of the surface material 2 is small. As a result, a particularly soft and soft design surface is formed, and depending on the purpose and application, it can be a more useful skin material.

[Example 3]
The skin material 3 of Example 3 comprises the base material sheet 10 which comprises a surface layer, the soft sheet 40 laminated | stacked on the base material sheet 10, and the back surface layer laminated | stacked on the soft sheet 40 like FIG. And a workpiece material sheet 20, which are bonded to one another using an adhesive. The base sheet 10 and the processing material sheet 20 are a sheet-like natural leather having a thickness of 1.2 mm, and the soft sheet 40 is a foamed polyurethane sheet having a thickness of 3 mm. In this skin material 3, since the soft sheet 40 intervenes, the effect exerted by the processed material sheet 20 on the designability of the base sheet 10 is indirect, and as a result, a more gentle and soft design surface is formed. Depending on the purpose and application, it may be a more useful skin material.

Example 4
As shown in FIG. 4, the surface material 4 of Example 4 includes the base material sheet 10 constituting the surface layer, the processing material sheet 20 laminated on the base material sheet 10, and the back surface layer, and the processing material sheet 20. And a flexible sheet 40 laminated on the opposite side to the base sheet 10, which are bonded to each other using an adhesive. That is, the surface material 4 has a form in which the soft sheet 40 is further stacked on the back surface of the processed material sheet 20 of the surface material 1. The base sheet 10 and the processing material sheet 20 are a sheet-like natural leather having a thickness of 1.2 mm, and the soft sheet 40 is a foamed polyurethane sheet having a thickness of 3 mm. Since the surface material 4 has the same structure as the surface material 1 as it is, in addition to the same function and effect as the surface material 1, the soft sheet 40 is laminated to provide a surface material having a higher cushioning property. can do.

  It is to be understood that the foregoing description is for the purpose of illustration only and is not to be construed as limiting the invention. Although the invention has been described with reference to exemplary embodiments, it is understood that the words used in the description and illustration of the invention are illustrative and exemplary rather than restrictive. Changes may be made within the scope of the appended claims without departing from the scope or spirit of the invention in its form, as detailed herein. Although the specification herein has been directed to specific structures, materials, and embodiments, the present invention is not intended to be limited to the particulars disclosed herein, but rather is as follows: It shall cover all functionally equivalent structures, methods, and uses within the scope.

  The skin material of the present invention can be utilized in various technical fields. Specifically, the present invention can be suitably used in fields related to interior materials for vehicles such as automobiles and railroad cars, interior materials such as aircraft, ships, buildings, etc., and skin materials in various industries such as apparel.

1, 2, 3, 4; skin material,
10; substrate sheet,
20, 30; processed material sheet,
20 g;
30 g; groove 40; soft sheet.

Claims (6)

A surface material comprising: a base material sheet constituting a surface layer; and a plurality of processing material sheets laminated on the base material sheet and constituting a back surface layer,
The processing material sheets are stacked apart from each other, and a design surface corresponding to the shape of the peripheral portion is formed on the surface of the base sheet by the peripheral portions of adjacent processing material sheets. Feature skin material.   The surface material according to claim 1, wherein the base sheet is made of fabric, natural leather, synthetic leather or thermoplastic resin, and the processed sheet is made of natural leather, synthetic leather or thermoplastic resin.   The surface material according to claim 1 or 2, wherein a thermoplastic resin sheet is further laminated between the base sheet and the processing material sheet. A surface material comprising: a base material sheet constituting a surface layer; and a processing material sheet laminated on the base material sheet and constituting a back surface layer,
A recess is formed in the processing material sheet toward the base sheet, and the peripheral edge of the recess on the base sheet side corresponds to the shape of the peripheral edge on the surface of the base sheet A surface material characterized in that a design surface is formed.   The surface material according to claim 4, wherein the base material sheet is made of a fabric, natural leather, synthetic leather, or a thermoplastic resin, and the processing material sheet is made of a thermoplastic resin.   An interior material for a vehicle comprising a skin layer formed using the skin material according to any one of claims 1 to 5.

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