JPS60151041A - Manufacture of laminated sheet, surface thereof has irregular pattern - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to an i-adic method for a laminate sheet comprising a skin material, a cushion material and a back material and having an uneven surface pattern.

(Description of the prior art) Laminate sheets, which are made of a skin material, a cushion material, and a back material and have an uneven pattern on the surface, are often used as automobile interior materials for seats and door trims, or as surface materials for interior goods such as sofas. .

By the way, in the conventional manufacturing method of this type of laminate sheet, as shown in Figs. Then, these are heat-pressed using an upper die 4 and a lower die 5 having pressing blades 4a, and the adhesive present between the outer skin material 1, the cushion material 6.6I, and the back material 2 is cured and laminated. Rarely. Incidentally, in the method shown in FIG. 2, a cushioning material for the seat bottom may be further laminated on the inner surface of the skin material 1.

However, the method using a seat-shaped cushioning material as shown in FIG. 1 has the disadvantage that the uneven pattern obtained has a poor three-dimensional effect with small undulations, and the method using a block-shaped cushioning material as shown in FIG. In this method, cutting the cushion material into a predetermined block shape is time-consuming and difficult to set in a predetermined position, resulting in poor workability.

(Object of the Invention) The present invention has been made in view of the above-mentioned points, and is intended to provide excellent workability and to give the obtained laminate sheet an uneven pattern rich in undulations and full of three-dimensional effect. A method for manufacturing a laminate sheet is provided.

(Structure of the Invention) FIGS. 6 and 6 are cross-sectional views illustrating the manufacturing method of the embodiment of the present invention. Hereinafter, one embodiment of the present invention will be explained in order of steps using these figures.

(a) Lamination process of skin material and cushion material.

A skin material 7 such as fabric is laminated and adhered to the upper surface of a seat cushion material 6 made of soft polyurethane foam or the like. This lamination is carried out using an adhesive that remains flexible even after adhesion, or by flame fusion in which the surface of the cushioning material is partially melted by flame to achieve fusion.

(b) Step of forming a protrusion on the lower surface of the cushion material After laminating and pasting the cushion material 6 and the skin material 7, as shown in FIG. 6 and FIG. The laminate is placed between the upper mold 8 and the lower mold 9 having four parts 9a at positions corresponding to the pressing blade 8a, with the skin material 7 and the pressing blade 8a facing each other, and then the laminate is placed between the upper mold 8 and the lower mold 9. The laminate is pressed from the skin material Z side at the pressing blade 8a portion, and the cushion material 6 is made to protrude to the lower surface side at that portion, and the protrusion portion 6a is formed in the recess portion 9a of the lower mold.

Cutting and Removal Step of Protruding Portion After the protruding portion 6a is formed as shown in FIG. 4 through the above steps, the protruding portion 6a portion is cut and removed so that the lower surface of the cushioning material B is approximately plane A.

2) Exposing the leprosy part After cutting and removing the protruding part 6a of the cushion material, the pressure from the upper mold 8 and the lower mold 9 is released, and the cut and removed part of the protruding part 6a is given the desired thickness as shown in FIG. A recessed portion 6b consisting of the following is exposed. The recessed portion 6b is formed by the removed portion of the protruding portion 6a of the cushioning material, which was made flat when pressed by the pushing blade, returning to its unpressurized shape when the pressing is released. Incidentally, the thickness in the recessed portion 6b is set to a desired value, and the steps (b) and e→ may be performed so that the thickness is almost zero.

(E) Step of integrating the outer skin material, cushioning material, and backing material A backing material 10 made of strong cloth, nylon nonwoven fabric, etc. is arranged on the lower surface of the cushioning material 6 in which the recessed portion 6b is formed, as shown in FIG. Subsequently, the outer skin material 7, the cushion material 6, and the back material 1° are sewn together with sewing thread 11 in the recessed portion 6b.
As shown in FIG. 86, recesses 12 are formed on different surfaces of the skin material 7, thereby imparting an uneven pattern to the surface of the skin material 7. Since the stitching is performed in the thin recessed portion 6b of the cushion material 6, the outer skin material 7 is attached to the back material 1 at the stitched portion.
The four parts 12 that are deeply drawn into the 0 side and formed on the skin material 7
becomes a deep concave shape. As a result, the uneven pattern becomes a three-dimensional object with many ups and downs. FIG. 7 is a perspective view of an example of the laminate sheet obtained in this manner.

(Effects of the Invention) Since the manufacturing method according to the present invention consists of the simple steps as described above, it does not require the work of forming the cushioning material into a block shape, which was required in the conventional manufacturing method, and the work of forming the cushioning material into a block shape. There is no need for difficult work to set it in a predetermined position, the manufacturing process is simple and the workability is excellent, and the manufacturing cost can be reduced. The obtained laminate sheet also has the advantage that the uneven pattern on the surface has an excellent three-dimensional effect with rich undulations.

As described above, the present invention is industrially useful.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views for explaining the conventional manufacturing method, FIGS. 6 and 6 are cross-sectional views for explaining the manufacturing according to the present invention, and FIG. FIG. 2 is a perspective view of a laminated sheet. 6...Cushion material, 7...Skin material, 8...Upper mold, 8a...Press blade, 9...Choice shape, 9a...Recessed part,
10...Back surface material, 6a...Protruding portion, 6b...High portion Patent applicant Inoue MBC Co., Ltd. 7- Fig. 1 =:=====ko92 ↑ Fig. 2 Rororororo□3' ↑ Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] In manufacturing a laminate sheet made by laminating a skin material, a cushion material, and a back material, after the skin material is laminated and pasted on the top surface of the cushion material, the cushion material is partially attached to the bottom surface of the cushion material by pressing from the skin material side. After cutting and removing the protruding portion in that state, the suppression is released to expose a partial depression with a desired thickness on the lower surface of the cushioning material, and then a backing material is placed on the lower surface of the cushioning material.・
A method for producing a laminate sheet having an uneven pattern on its surface, the method comprising sewing the outer skin material, the cushion material, and the back material together in the recessed portions.