JPS6216817B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a laminated cushion sheet having a wrinkle pattern, and more specifically, by using a core material perforated in a predetermined shape, corresponding wrinkles can be created on the surface of the facing material. This relates to a cushion sheet with a natural and heavy feel that has a pattern formed thereon.

BACKGROUND OF THE INVENTION Cushion seats for furniture, cars, etc. are becoming more and more luxurious due to the current richness of materials and boom. Therefore, cushion sheets do not simply attach a single piece of cloth to a formed base material, but instead use a highly elastic material as the core material, and have a beautiful surface that can be used for furniture and car seats. It is being considered that the surface material is laminated with a suitable surface material and the surface material is wrinkled to give it a luxurious look. Conventionally, these wrinkle patterns have been created by applying heat and pressure to a laminated cushion sheet material with a press having a predetermined pattern to create an embossed pattern, or by creating joining lines using a high-frequency sewing machine, an ultrasonic sewing machine, etc. It was formed by making it into an embossed pattern. However, the patterns created by these methods do not have the natural feel of handmade patterns, and wrinkles occur in areas where deep embossed patterns are not desired, making them even more unnatural.To solve this problem, highly elastic surfaces are used. Wood is sometimes used, but these have the disadvantage of being cheap and lack a sense of solidity.

The inventor of the present invention has arrived at the present invention as a result of extensive research in order to obtain a laminated cushion sheet that does not have these defects.The purpose of the present invention is to create a laminated cushion sheet that has a texture that looks like handmade material and has a profound feeling. The purpose is to provide a laminated cushion sheet that can be
In a cushion sheet 4 in which a core material 2 and a back material 3 are laminated together, the front material 1 and the back material 3 are combined inside a hole 5 previously provided in the core material 2, and a predetermined portion is attached to the surface material 1 at the joined portion. This is achieved by a laminated cushion sheet 4 having a wrinkle 6 pattern.

The present invention will be described in detail below along with one embodiment shown in the drawings.The present invention includes a surface material 1, a core material 2,
It consists of a back material 3, which are stacked together to form a single body, or two or more of each of the surface material 1, the core material 2, and the back material 3 may be used and combined.

The core material 2 used has holes 5 provided in advance, and the surface material 1 and the back surface material 3 are joined at this location. In this case, surface material 1 and back material 3
may be directly coupled as shown in FIG. 3, or indirectly coupled with another member 7 interposed at the coupling location as shown in FIG. Furthermore, as shown in FIG. 5, two core materials 2 are used, and a core material 1 without holes 5
They may be coupled via 0. The bonded portion of the surface material 1 serves as a starting point for wrinkles 6, and the wrinkles 6 continue from there. Not only the holes 5 but also the 6th holes are formed in the core material 2.
If a groove 7 continuous to the hole 5 is provided as shown in the figure, the wrinkles 6 starting from the hole 5 will continue along the groove 7 as shown in FIG. Therefore, it is preferable to also provide the grooves 7 in the core material 2, since the cushion sheet 4 can always have substantially the same wrinkle pattern.

As the material for the surface material 1, woven fabric, leather, flexible plastic sheet, synthetic leather, etc., and materials and colors that suit the purpose and preference of furniture, cars, etc. can be used. In addition, as the backing material 3, woven fabric,
Plastic sheets, nonwoven fabrics, etc. can be selected as appropriate, but nonwoven fabrics are preferred because they are inexpensive.

Examples of the material of the core material 2 include flexible synthetic resin foams such as soft polyurethane foam, soft polyvinyl chloride foam, foam rubber, and foamed polyolefin, with soft polyurethane foam being particularly preferred.

The product of the present invention is manufactured, for example, by the following steps illustrated in FIGS. 8 and 9.

In FIG. 8, 8 is a press board for a hot press having an embossing rod 9, on which the surface material 1 is placed, and then the core material 2, which has holes 5 in advance, is placed on it, and the holes 5 are formed on the embossing rod. 9, then place the core material 10 which does not have holes, and finally place the back material 3, and place the hot press plate on the 9th part.
Operate as shown in the figure to integrate the cushion sheet. At this time, the core material 2 is impregnated or coated with a resin stock solution that serves as an adhesive, such as urethane prepolymer containing free isocyanate groups, and the side of the back material 3 in contact with the core material 10 is coated with urethane prepolymer containing free isocyanate groups. By impregnating or applying a hardening agent solution such as a reaction catalyst aqueous solution, the bonding is made even stronger.

Note that the shape and arrangement of the holes 5 and grooves 7 in the core material 2 in the present invention are important points that greatly influence the shape of the wrinkle pattern produced on the surface material 1. For example, when the core material 2 shown in FIG. 6 is used. In this case, a wrinkle pattern is created on the surface material 1 shown in FIG.

The product of the present invention manufactured in the manner described above has a handmade natural texture and solid feel that could not be seen in conventional mass-produced products, and also has a cushion sheet with the desired wrinkle pattern. It is.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing one embodiment of the cushion sheet of the present invention, FIG. 2 is a plan view thereof, and FIGS.
Fig. 6 is a plan view showing one example of the core material, and Fig. 7 is a plan view showing an example of the core material.
FIG. 8 is an explanatory view showing the state before pressing when manufacturing an example of the cushion sheet of the present invention, and FIG. 9 is a plan view showing the cushion sheet of the present invention using the core material shown in the figure. FIG. 8 is an explanatory diagram showing a state immediately after pressing from the state shown in FIG. 8; 1... Surface material, 2... Core material, 3... Back material, 4
...Cushion sheet, 5...hole, 6...wrinkle, 7
……groove.

Claims (1)

[Scope of Claims] 1. In a cushion sheet in which a face material, a core material, and a back material are laminated, the face material and the back material are bonded inside a hole previously provided in the core material, and the surface material of the bonded portion is A laminated cushion sheet having a wrinkle pattern, characterized in that a predetermined wrinkle pattern is formed thereon. 2. The cushion sheet according to claim 1, wherein the core material is provided with holes and grooves continuous with the holes.