WO2015076341A1 - Method for manufacturing product with skin-like covering - Google Patents

Abstract

When manufacturing a product (10) with a skin-like covering that is provided with a layered material (12) configured from a base material (11), a skin-like covering (13) and a cushion layer (14), and a stitch line (17) configured from multiple stiches arranged in a line along the surface of the skin-like covering (13), a stitch line-forming step and a gluing step are performed. In the stitch line-forming step, the stitch line (17) is formed on the surface of the skin-like covering (13) by sewing the cushion layer (14) and the skin-like covering (13) together using an upper thread (18) and a lower thread (19) so that some of the cushion layer (14) of the layered material (12) is pulled toward the skin-like covering (13). In the gluing step, substantially the entire back surface of the layered material (12), including the back surface of the portion that has been sewn together, is glued so as to adhere closely to the base material (11).

Description

Manufacturing method of products with skin

The present invention relates to a method of manufacturing a product with a skin in which a stitch line is formed on a part of the surface of the skin.

As interior parts such as automotive instrument panels and consoles, a base material, a laminated material that is provided on the base material and is formed by laminating a cushion layer on the back side of the skin, and a line along the surface of the skin And a stitch line composed of a plurality of stitches arranged in a shape (hereinafter referred to as a product with a skin) are known. In this skin-attached product, it is effective in enhancing the texture that the part of the skin has a dent and the stitch line is located at the bottom of the dent and the stitch line appears to sink. .

In the “method for manufacturing a vehicle interior member” described in Patent Document 1, a stitch line forming portion 55 is provided in a laminated material 51 as shown in FIG. In the stitch line forming portion 55, each surface of the skin 52 and the cushion layer 53 is recessed toward the base material 56, and each back surface protrudes toward the base material 56. The stitch line 54 is formed on the surface of the skin 52 by stitching the cushion layer 53 and the skin 52 together in the stitch line forming portion 55.

On the other hand, the base material 56 is provided with a stitch line corresponding portion 57. As for the stitch line corresponding | compatible part 57, the surface of the base material 56 is dented toward the back surface.
The laminated material 51 is fixed to the base material 56 by the stitch line forming portion 55 being bonded to the stitch line corresponding portion 57.

JP 2013-43571 A

However, in the manufacturing method described in Patent Document 1, when the laminated material 51 is fixed to the base material 56, the alignment operation of the stitch line forming portion 55 with respect to the stitch line corresponding portion 57 must be performed strictly. It takes.

The present invention has been made in view of such circumstances, and the object thereof is to provide a product with a skin that has a hollow portion in a part of the skin and a stitch line at the bottom of the hollow portion. An object of the present invention is to provide a method for manufacturing a product with a skin that can be manufactured without performing an alignment operation.

A method of manufacturing a product with a skin that solves the above problems is provided with a skin having a front surface and a back surface, a base material having a front surface and a back surface, a surface of the base material, and a back surface of the skin from the same skin. A method of manufacturing a product with a skin comprising a laminated material constituted by laminating a soft cushion layer and a stitch line constituted by a plurality of seams arranged linearly along the surface of the skin Forming the stitch line on the surface of the skin by stitching the cushion layer and the skin so that a part of the cushion layer in the laminate is recessed toward the skin; And at least the process of affixing in the state which contact | adhered the substantially whole surface including the back surface of the said part stitched together with respect to the said base material is performed.

In the stitch line formation process, the cushion layer and the skin in the laminated material are stitched together. Since the cushion layer in the laminated material is softer than the skin, when the cushion layer and the skin are stitched together, a part of the cushion layer is pulled toward the skin by the thread. Therefore, the peripheral part of the same thread on the back surface of the cushion layer is recessed toward the skin. In addition, a stitch line composed of a plurality of seams arranged linearly along the surface is formed on the surface of the epidermis.

In the affixing process, it is affixed in a state where the back surface of the laminated material and the substantially entire surface including the back surface of the stitched portion are in close contact with the base material. At this time, in the cushion layer, before the attaching process, the portion that was pulled and depressed toward the outer skin by sewing is pulled back toward the substrate, and the surface of the substrate is not similar to the portion that is not stitched and not depressed. It is made into the shape along, and is affixed on the same base material. In this pasting, it is not necessary to strictly align the laminate with the substrate.

形状 By the above-mentioned pasting, a shape obtained by inverting the shape before the pasting process is formed on a part of the laminated material. That is, a hollow portion having a stitch line at the bottom while being depressed toward a base material in a part of the skin.

As the laminated material, a material in which a three-dimensional cushion layer is laminated on the skin is suitable. The three-dimensional knitted cushion layer has excellent compression characteristics (high rigidity) compared to other types of cushion layers. Therefore, when the three-dimensional knitted cushion layer and the skin are stitched together in the stitch line forming step, only the portion close to the stitch line in the three-dimensional knitted cushion layer is pulled toward the skin.

Moreover, when a laminated material is affixed on a base material in a close contact state in the affixing step, a clear recess is formed only in a portion close to the stitch line.
In the manufacturing method of the above-mentioned product with skin, in the pasting step, a pressing force is applied to at least one of the base material and the laminated material in a direction to approach each other, and the laminated material is pasted on the base material. It is preferable that the pressing force is released.

According to the above manufacturing method, in the attaching step, a force is applied to press at least one of the base material and the laminated material in a direction in which they are brought close to each other. This force acts against the elastic restoring force of the cushion layer, and the cushion layer is compressed toward the substrate. Therefore, it is affixed suitably in the state which is the back surface of a laminated material and substantially the whole surface including the back surface of the part stitched together closely_contact | adhered to the base material. At this time, the portion of the cushion layer that was pulled and depressed toward the outer skin by sewing before the attaching process is pulled back toward the substrate, and the portion of the substrate that is not sewn and not recessed is similar to the cushion layer. It becomes a shape along the surface and is affixed to the same substrate.

The pressing force is released after the laminated material is attached to the substrate. Then, the force for compressing the cushion layer is lost, and the cushion layer tries to return to the original state by its own elastic restoring force. However, in the portion sewn in the cushion layer, the restoration by the elastic restoring force is limited by the thread. Therefore, the shape which reversed the shape before a sticking process is formed in a part of laminated material. That is, a hollow portion having a stitch line at the bottom while being depressed toward a base material in a part of the skin.

According to the above method for manufacturing a product with a skin, it is possible to manufacture a product with a skin that has a dent in a part of the skin and has a stitch line at the bottom of the dent without a precise alignment operation. it can.

(A)-(e) is process drawing which shows one Embodiment of the manufacturing method of the product with a skin. FIG. 2 is a partial perspective view of a product with an outer skin manufactured by the manufacturing method of FIGS. 1 (a) to 1 (e). The fragmentary sectional view which shows the 1st modification of a product with a skin. The fragmentary sectional view which shows the 2nd modification of a product with a skin. The fragmentary sectional view which shows the 3rd modification of a product with a skin. FIG. 10 is a partial cross-sectional view showing a state in the middle of manufacturing the skin-covered products of the first to third modifications, and showing a state in which a pair of laminated materials are stitched together. The fragmentary sectional view which shows the state in the middle of manufacturing the product with the conventional skin.

Hereinafter, an embodiment of a method for manufacturing a product with a skin will be described with reference to FIGS. 1 and 2.
First, a product with a skin manufactured by the manufacturing method of the present embodiment will be described. In the present embodiment, various automotive interior products such as automotive instrument panels, consoles, door trims, glove boxes, pillar garnishes, etc. are targeted for products with skins. For convenience of explanation, a product with a skin is illustrated in a simple shape.

As shown in FIG. 2, the product with skin 10 includes a base material 11, a laminated material 12, and a stitch line 17 as main constituent members. Next, each component of the product with skin 10 will be described.

<Substrate 11>
The base material 11 is a member that forms the skeleton of the product 10 with skin, and ensures the rigidity of the product 10 with skin. The base material 11 is formed into a product shape by resin molding such as injection molding using a resin material such as polypropylene or polyethylene. The base material 11 may have a non-flat surface such as a curved surface, a bent surface, and an uneven surface.

On the base material 11, a portion corresponding to the stitch line corresponding portion 57 (see FIG. 7) of Patent Document 1, that is, the surface is recessed toward the back surface, and the portion for bonding the stitch line forming portion of the laminated material is Not formed.

<Laminated material 12>
The laminated material 12 is a member corresponding to the surface layer portion of the product 10 with skin. The laminated material 12 is disposed on the substrate 11 by the laminated material 12 being attached to the substrate 11 with the back surface of the laminated material 12 being in close contact with the surface of the substrate 11.

The laminated material 12 is composed of a skin 13 that constitutes the design surface of the product 10 with skin, and a cushion layer 14 that is laminated on the back surface (lower side in FIG. 2) of the skin 13 and is softer than the skin 13.

The skin 13 is mainly used for the purpose of improving the texture and touch of the product 10 with the skin. The skin 13 is formed into a sheet having a uniform thickness by synthetic leather made of vinyl chloride, thermoplastic elastomer (TPE), or the like, and can be deformed in the thickness direction or the like.

The thickness of the skin 13 is preferably 0.35 to 1.5 mm. If the thickness of the skin 13 is smaller than 0.35 mm, wrinkles may occur in a portion near the stitch line 17 in the skin 13 in the process of manufacturing the product 10 with the skin. On the other hand, when the thickness of the skin 13 is larger than 1.5 mm, the skin 13 becomes hard. When the skin 13 is hard, when the laminated material 12 is affixed to the base material 11, the skin 13 is hard to deform | transform along the base material 11, and the hollow part 15 is hard to be formed. On the surface of the skin 13, a wrinkle pattern (a wrinkle pattern) as seen in leather products may be formed.

The cushion layer 14 is constituted by a three-dimensional knitted cushion layer and has elasticity. The cushion layer 14 is used to improve the tactile sensation of the product 10 with the skin. For example, the cushion layer 14 is formed using a double raschel knitting machine and is connected between a pair of ground knitted fabrics arranged at a predetermined interval. Is knitted by reciprocating.

The thickness of the cushion layer 14 is desirably 1.5 to 3.5 mm. If the thickness is out of the above range, the appearance of the product 10 with the skin is lowered. Specifically, when the thickness of the cushion layer 14 is smaller than 1.5 mm, the amount of the cushion layer 14 that is pulled back toward the base material 11 when the cushion layer 14 is attached to the base material 11 is insufficient. If the thickness of the cushion layer 14 is larger than 3.5 mm, the cushion layer 14 may be excessively recessed toward the skin 13 when the cushion layer 14 and the skin 13 are stitched together. In this case, the amount of pullback toward the base material 11 of the cushion layer 14 when the laminated material 12 is affixed to the base material 11 increases, and a larger dent portion 15 than intended is formed on the surface of the laminated material 12. There is a fear.

On the surface of the laminated material 12, a recess 15 composed of a pair of wall surfaces 16 is formed by compressing and deforming a part of the cushion layer 14 toward the base material 11. In the cushion layer 14, the thickness of the portion where the recess 15 is formed is smaller than the thickness of the portion where the recess 15 is not formed. The pair of wall surfaces 16 are gently inclined toward the bottom of the recess 15. The distance between the pair of wall surfaces 16 is narrowed as it approaches the bottom of the recess 15.

In the laminated material 12, a portion corresponding to the stitch line forming portion 55 (see FIG. 7) of Patent Document 1, that is, each surface of the skin and the cushion layer in the laminated material is recessed toward the base material, and the skin and The part which each back surface of a cushion layer protrudes toward a base material is not formed.

<Stitch line 17>
The stitch line 17 is provided for the purpose of decorating the product 10 with the skin. In the skin 13 of the product 10 with the skin, it is possible to give the product 10 with the skin a high-class feeling by reproducing the stitching of the parts constituting the skin 13 in a pseudo manner. Directing. Such a stitch line 17 is also called a decorative stitch.

The stitch line 17 is formed by stitching the skin 13 and the cushion layer 14 using the upper thread 18 and the lower thread 19, and is linear along the bottom of the recess 15 formed on the surface of the skin 13. And a plurality of seams 21 arranged in a row. In other words, the upper thread 18 appears intermittently at the bottom of the recess 15, and this appearing portion constitutes the seam 21. The stitch line 17 of the present embodiment is configured by arranging a plurality of seams 21 linearly along the direction in which the recessed portion 15 extends. Such an arrangement form of the seams 21 is also called a straight stitch.

Next, as an operation of the present embodiment, a method for manufacturing the skinned product 10 configured as described above will be described with reference to FIGS. 1 (a) to 1 (e).
In this manufacturing method, a laminated material forming step, a stitch line forming step, and a pasting step are sequentially performed. Next, each step will be described.

<Laminate formation process>
In the laminated material forming step, an outer skin 13 and a cushion layer 14 are prepared as shown in FIG. The cushion layer 14 is disposed on the back side of the skin 13, and the cushion layer 14 is bonded to the skin 13 with an adhesive. And as shown in FIG.1 (b), the laminated material 12 which laminated | stacked the cushion layer 14 on the back surface of the outer skin 13 is formed.

<Stitch line formation process>
In the stitch line forming step, as shown in FIG. 1C, the laminated material 12 is sewn over both the front surface and the back surface with the upper thread 18 and the lower thread 19, so that the skin 13 and the cushion layer 14 are sewn together. . A sewing machine is used for this sewing.

Here, since the cushion layer 14 is softer than the skin 13, the above sewing is performed while the cushion layer 14 is pulled toward the skin 13. By this sewing, the peripheral portions of the upper thread 18 and the lower thread 19 on the back surface of the cushion layer 14 are recessed toward the skin 13. Further, on the surface of the skin 13, stitch lines 17 (see FIG. 2) formed by a plurality of seams 21 arranged linearly as a whole along the surface are formed.

The cushion layer 14 composed of the three-dimensional knitted cushion layer has excellent compression characteristics (high rigidity) compared to other types of cushion layers. Therefore, when the cushion layer 14 and the skin 13 are stitched together, only the portion close to the stitch line 17 in the cushion layer 14 is pulled toward the skin 13 and compressed. In the cushion layer 14, the thickness near the stitch line 17 is smaller than the thickness of other portions.

<Paste process>
Prior to performing the pasting step, a substrate 11 is prepared as shown in FIG. The base material 11 is formed into a predetermined product shape by a resin molding method such as injection molding.

In the pasting step, an adhesive is applied to at least one of the front surface of the base material 11 and the back surface of the laminated material 12 (cushion layer 14). And it is affixed in the state which is the back surface of the laminated material 12, Comprising: The substantially whole surface including the back surface of the part stitched together, Here, the substantially whole surface of the back surface of the cushion layer 14 was contact | adhered with respect to the surface of the base material 11. .

In the present embodiment, the base material 11 and the laminated material 12 that are superposed on each other are pressed in directions approaching each other by a press machine (not shown) from both sides in the thickness direction thereof. This pressing force acts against the elastic restoring force of the cushion layer 14 of the laminated material 12, and the cushion layer 14 is compressed toward the base material 11. At this time, the portion of the cushion layer 14 that was pulled and depressed toward the outer skin 13 by sewing before the attaching step is pulled back toward the base material 11 and is not sewn and not depressed. It deforms into a shape along the surface of the substrate 11. That is, the cushion layer 14 of the laminated material 12 is brought into close contact with the base material 11 and is suitably attached to the base material 11. At the time of this pasting, it is not necessary to strictly align the laminated material 12 with respect to the base material 11.

After the laminated material 12 (cushion layer 14) is attached to the base material 11, the pressing force by the press machine is released. Then, the force for compressing the cushion layer 14 is lost, and the cushion layer 14 tries to return to the original state by its own elastic restoring force. However, in the portion sewn in the cushion layer 14, restoration by the elastic restoring force is limited by the upper thread 18 and the lower thread 19. Therefore, as shown in FIG.1 (e), the shape which reversed the shape before a sticking process is formed in a part of laminated material 12 (skin 13 and cushion layer 14). That is, a recess 15 having a stitch line 17 at the bottom while being recessed toward the substrate 11 in a part of the skin.

Here, as described above, the cushion layer 14 composed of the three-dimensional knitted cushion layer has superior compression characteristics and higher rigidity than other types of cushion layers. Therefore, when the laminated material 12 is stuck to the base material 11 in a close contact state, a clear recess 15 is formed only in a portion near the stitch line 17.

According to the embodiment described in detail above, the following effects can be obtained.
(1) In the stitch line forming step, the stitch line 17 is formed on the surface of the skin 13 by stitching the cushion layer 14 and the skin 13 so that a part of the cushion layer 14 in the laminated material 12 is recessed toward the skin 13. (FIG. 1 (c)). In the pasting step, pasting is performed in a state in which the back surface of the laminated material 12 and the substantially entire surface including the back surfaces of the stitched portions (substantially the entire back surface of the cushion layer 14) is in close contact with the base material 11 (FIG. 1). (E)).

Therefore, it is possible to manufacture the product 10 with the skin having the recess 15 in a part of the skin 13 and the stitch line 17 at the bottom of the recess 15 without performing a strict alignment operation.
(2) As the laminated material 12, the thing (FIG.1 (b)) which laminated | stacked the cushion layer 14 comprised from a three-dimensional knitted cushion layer on the skin 13 is used.

Therefore, in the stitch line forming step (FIG. 1 (c)), only the portion near the stitch line 17 in the three-dimensional knitted cushion layer is pulled toward the skin 13, and in the attaching step (FIG. 1 (e)), the stitch line is A clear recess 15 can be formed only in the vicinity of 17.

(3) In the affixing step, the pressing force is applied to the base material 11 and the laminated material 12 from both sides in the thickness direction in a direction in which the base material 11 and the laminated material 12 approach each other. The force to apply is released.

Therefore, the cushion layer 14 is compressed toward the base material 11 by applying the pressing force. Therefore, it is possible to suitably paste the laminated material 12 in a state where the substantially entire surface including the back surfaces of the stitched portions (substantially the entire back surface of the cushion layer 14) is in close contact with the base material 11.

Further, by releasing the pressing force after the pasting, the unsewn portion in the cushion layer 14 is restored by its own elastic restoring force, while the stitched portion is restored by the elastic restoring force by the thread. Limited. Therefore, it is possible to suitably form the recessed portion 15 that is recessed toward the base material 11 and has the stitch line 17 at the bottom in a part of the laminated material 12.

In addition, with respect to the said embodiment, the modified example changed as follows can also be implemented.
-As the skin 13, genuine leather may be used instead of synthetic leather.
-As cushion layer 14, it may replace with a solid knitted cushion layer and may use foaming materials, such as urethane foam, ethylene foam, and propylene foam. These foams are characterized in that the bubbles are in communication and are soft and have restorability.

In the laminated material forming step, the cushion layer 14 may be attached to the skin 13 with a double-sided tape or an adhesive instead of the adhesive.
Similarly, in the attaching step, the laminated material 12 may be attached to the base material 11 with a double-sided tape or an adhesive instead of the adhesive.

The stitch line 17 may be arranged linearly as a whole by arranging a plurality of seams 21 in an inclined state with respect to the direction in which the recess 15 extends. . Such an arrangement form of the seams 21 is called an oblique stitch, an inclined stitch or the like. Furthermore, the stitch line 17 may be one in which the above-described straight stitch and inclined stitch are alternately arranged.

The above manufacturing method can also be applied to a product 10 with a skin in a form called “single stitch” or “double stitch” in which a pair of laminated materials 12 are combined as shown in FIGS.

Next, a product including a pair of laminated materials 12, a skin 13, a cushion layer 14 and the like will be described. In this case, “L” is appended to the element located on the left side of the drawing, and “R” is appended to the element located on the right side of the drawing.

When the pair of laminated materials 12L and 12R are joined in the above-described form, a form called “in-stitch” shown in FIG. 6 is adopted as an intermediate stage.
In the in-stitch, the pair of laminated materials 12L and 12R are overlapped with the skins 13L and 13R being adjacent to each other. The same pair of laminated materials 12L and 12R are joined together by sewing their peripheral portions. The portions of the pair of laminated materials 12L and 12R except for the seams 31L and 31R (hereinafter referred to as “non-sewn portions 32L and 32R”) are opened so as to be separated from each other, whereby the skin 13L in the non-sewn portions 32L and 32R. , 13R are arranged on the front side. The sewing margins 31L and 31R are in a state where they overlap each other or are close to each other, and are arranged substantially orthogonal to the non-sewn portions 32L and 32R on the back side (the lower side in FIG. 6). The stitching portion 33 and both seam allowances 31L and 31R are invisible or difficult to see from the front side (upper side in FIG. 6).

FIG. 3 shows a state in which a pair of laminated materials 12L and 12R are joined in a form called single stitch as a first modification of a product with a skin. In the first modification example, the back surface of the seam allowance 31L is the back surface of the non-sewn portion 32L in a state where the seam allowances 31L and 31R in the pair of laminated materials 12L and 12R respectively joined by in-stitch (see FIG. 6) are overlapped with each other And is overlapped on the back surface of the non-sewn portion 32L. And a stitch line formation process is implemented with respect to these non-sewing parts 32L and both seam allowances 31L and 31R. In addition, substantially the entire back surface of the laminated materials 12L and 12R including the back surface of the stitched portion is attached to the base material 11. In the first modification, most of the back surface of the non-sewn portion 32L (cushion layer 14L) shown in FIG. 3 and each back surface of the seam allowance 31R and the non-sewn portion 32R (both cushion layers 14R) are attached in the pasting step. It is an object to be affixed to the substrate 11.

As shown in FIG. 3, the base material 11 used in the first modification has a stepped portion 34. And each seam allowance 31L, 31R of laminated material 12L, 12R is arrange | positioned in the level | step-difference part 34, and said sticking is implemented. By this pasting, the recess 15L having the stitch line 17L at the bottom is formed above the seams 31L and 31R in the non-sewn part 32L.

FIG. 4 shows a state in which a pair of laminated materials 12L and 12R are joined in a form called a double stitch as a second modification of the product with skin. In the second modification, both seam allowances 31L and 31R in the pair of laminated materials 12L and 12R respectively joined by in-stitch (FIG. 6) are opened so as to be separated from each other.

That is, the seam allowance 31L shown in FIG. 4 is such that the back surface of the seam allowance 31L is bent toward the back surface of the non-sewn portion 32L, and is superimposed on the back surface of the non-sewn portion 32L. And a stitch line formation process is implemented with respect to these non-sewing parts 32L and the seam allowance 31L. Further, the substantially entire surface including the back surface of the stitched portion, which is the back surface of the laminated material 12L, in this case, the outer skin 13L of the seam allowance 31L and the majority of the back surface of the non-sewn portion 32L (cushion layer 14L) are pasted. In FIG.

Further, in the seam allowance 31R shown in FIG. 4, the back surface of the seam allowance 31R is bent toward the back surface of the non-sewn portion 32R, and is overlapped with the back surface of the non-sewn portion 32R. And a stitch line formation process is implemented with respect to these non-sewing parts 32R and the sewing allowance 31R. In addition, the substantially entire surface including the back surface of the stitched portion, which is the back surface of the laminated material 12R, in this case, the skin 13R of the seam allowance 31R and the majority of the back surface of the non-sewn portion 32R (cushion layer 14R) are pasted. In FIG.

As shown in FIG. 4, the base material 11 used in the second modification has a recess 35. And each seam allowance 31L, 31R of each laminated material 12L, 12R is arrange | positioned in the recessed part 35, and said sticking is implemented. By this pasting, the recessed portions 15L and 15R having the stitch lines 17L and 17R at the bottom are formed above the seams 31L and 31R in the non-sewn portions 32L and 32R.

A decorative stitch similar to that in the above embodiment may be formed on each of the non-sewn portions 32L and 32R of the pair of laminated materials 12L and 12R joined in a form called the in-stitch (FIG. 6). An example thereof is shown in FIG. 5 as a third modification of the product with skin.

As shown in FIG. 5, in the third modification, both seam allowances 31L and 31R are not overlapped unlike the single stitch and double stitch. The sewing allowances 31L and 31R are substantially orthogonal to the back surfaces (the lower side in FIG. 5) of both the non-sewn portions 32L and 32R. A stitch line forming step is performed on each non-sewn portion 32L, 32R. In addition, substantially the entire back surface of the laminated materials 12L and 12R including the back surface of the stitched portion is attached to the base material 11. In the 3rd modification shown in FIG. 5, the back surface of each non-sewing part 32L, 32R becomes a target stuck on the base material 11 in a sticking process. By this pasting, the recessed portions 15L and 15R having the stitch lines 17L and 17R at the bottom are formed in the non-sewn portions 32L and 32R.

As shown in FIG. 5, the base material 11 used in the third modification has a recess 36. Both seam allowances 31L and 31R are disposed in the recess 36.
The above manufacturing method is not limited to automobile interior parts, and can be widely applied to products with a skin having the stitch line 17 on the surface of the skin 13.

DESCRIPTION OF SYMBOLS 10 ... Product with skin, 11 ... Base material, 12, 12L, 12R ... Laminated material, 13, 13L, 13R ... Skin, 14, 14L, 14R ... Cushion layer, 15, 15L, 15R ... Recessed part, 17, 17L, 17R ... Stitch line, 21 ... Seam.

Claims (3)

A skin having a front surface and a back surface; and a substrate having a front surface and a back surface;
A laminated material that is provided on the surface of the base material, and is configured by laminating a cushion layer softer than the skin on the back surface of the skin;
A method for producing a product with an epidermis comprising a stitch line composed of a plurality of seams arranged linearly along the surface of the epidermis,
Forming the stitch line on the surface of the skin by stitching the cushion layer and the skin so that a portion of the cushion layer in the laminated material is recessed toward the skin;
A method of manufacturing a product with a skin, wherein at least a step of attaching a substantially entire surface of the laminated material including the back surface of the stitched portion in close contact with the base material is performed. . The method for producing a product with a skin according to claim 1, wherein a material in which a three-dimensional knitted cushion layer is laminated on the skin is used as the laminated material. In the affixing step, a pressing force is applied to at least one of the base material and the laminated material in a direction approaching each other, and the pressing force is released after the laminated material is affixed to the base material. The manufacturing method of the product with a skin of Claim 1 or 2 by which a hollow is formed in a part of said skin by it.

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