JPH071626A - Flock interior finishing component and manufacture thereof - Google Patents

Abstract

PURPOSE:To provide excellent beauty, a low cost in a short time by forming a flock layer with pattern according to a predetermined uneven pattern of a surface of a previously prepared synthetic resin base material in a flock interior finishing component having the flock layer with the pattern on a surface of the base material. CONSTITUTION:As material synthetic resin, thermoplastic or partially thermosetting resin which can be molded such as injection or extrusion molded is used. In the case of the injection or extrusion molding, a synthetic resin base material 3 is previously imparted with an uneven shape for appearing a desired, for example, fabric tone pattern by an embossing roll, etc., by a mold in the case of a sheetlike base material. An adhesive layer 11 coated with adhesive is formed by coating means such as spray coating, etc. Then, for example, linear piles 9 having uniform lengths, uniform diameters are electrostatically flocked along lines of electric force of a strong electric field. Thereafter, a hot air drying oven, etc., is used to dry it, and after drying, piles insufficient to be fixed are removed by air blowing and brushing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flocked interior part and a method for producing the same, and more particularly, to a flocked interior part with a fabric-like pattern using irregularities of a synthetic resin substrate and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, in order to prevent the reflection of light and the generation of sound, an aesthetic feeling that gives a high-class feeling to automobile interior parts, stationery, toys, watch cases, jewelry, accessory cases, etc. is provided, and light reflection and sound are further prevented. Synthetic resin moldings which have been flocked by various means have been often used to provide a cushioning effect.

One of the reasons for this is that the surface of the substrate is suede-like,
This is because if a sheet of fabric-like or flocking-like vinyl chloride is applied, it is difficult to finish the edge portion and the workability of winding is poor, so that it takes time and automation is extremely difficult.

Japanese Patent Application Laid-Open No. 63-22476 discloses a flocking method.
There is a compressed air flocking method for the purpose of random flocking, which is disclosed in Japanese Patent Laid-Open No. 4), and on the other hand, a vertical flocking coating structure in which piles are electrostatically flocked in parallel along the lines of electric force of a strong electric field No. 2-59068.

Further, as means for imparting a pattern to these flocked molded articles in order to improve the aesthetic appearance, JP-A-4-166 is known.
The application of the hydraulic transfer method described in Japanese Patent No. 265 can be considered, but it is considerably difficult to apply it to the hair transplant. In addition, the masking method disclosed in Japanese Patent Laid-Open No. 3-224660 is known as a conventional technique.

Among these, the masking method described in Japanese Patent Laid-Open No. 3-224660 has been a method in which piles of a plurality of colors are transplanted to a small portion from a plurality of pile nozzles.
There was a method of mixing a short pile of paint into the paint and spraying it with the paint, but it was devised as a drastic improvement measure against the poor quality of the product despite the complicated work. .

According to the present invention, "a step of applying a non-quick-hardening coating material to a molded article, a first step of pile-dispersing fiber piles dispersed in a solvent before curing of the coating material, a pattern of the above-mentioned spreading surface, etc. A step of masking with a member having, a second step of applying a pile of fiber piles further dispersed in a solvent on the application surface to the coating surface, and a step of removing excess pile after these are dried and cured. It is a method of flocking interior parts for automobiles, which is the main point.

That is, the step of applying the paint that functions as an adhesive and the step of spraying the basic color pile dispersed in the solvent are separate steps, and then the spray surface is covered with a masking material corresponding to the desired pattern. The above is further characterized in that the solvent-dispersed pile is sprinkled on the basic color pile, which is a considerably advanced means in that relatively different color patterns can be freely obtained.

However, the masking method requires multiple steps of undercoating of the adhesive layer, first pile spraying, drying, masking set, second pile spraying, drying, and unnecessary pile removal, which is time-consuming and costly. There was a problem. .

Therefore, the inventors of the present invention obtained the idea that, in place of the masking method, the substrate was provided with irregularities corresponding to a desired pattern in advance and then flocking processing was performed on the substrate, and as a result of experimental research, the present invention was obtained. Arrived

[0011]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a flocked interior part having a fabric-like or other pattern-implanted flocking process having an excellent appearance and a method for producing the same.

Another object of the present invention is to obtain a fabric-like or other flocked interior part having a good texture and a low cost, by a simple process in a short time instead of a conventional method such as a masking method. .

[0013]

According to the present invention, in a flocked interior part having a patterned flocked layer on the surface of a synthetic resin substrate, the patterned flocked layer is formed according to a predetermined uneven pattern on the surface of the synthetic resin substrate prepared in advance. A flocked interior part (claim 1), a base material forming step of forming while giving a necessary uneven pattern in advance, an adhesive applying step, and a semi-dry adhesive layer having a certain length. A method for producing a flocked interior part, which comprises an electrostatic flocking step of flocking the pile of No. 1, a drying step, and an unnecessary pile removing step. (Claim 2) is provided.

The present invention will be described in detail below.

Synthetic resin base material The synthetic resin may be any thermoplastic or partially thermosetting resin that can be molded by injection, extrusion, etc.
For example, a thermoplastic resin such as ABS resin, PE, PP, PVC, polystyrene, nylon, PC, or a thermosetting resin such as phenol resin, melanin resin, unsaturated polyester, diallyl phthalate resin, or polyurethane is used.

The material for the base material may be various surface-treated steel plates, metal plates, etc. other than synthetic resin.

Concavo- convex pattern The essential point is to provide in advance the concavo-convex pattern for producing the desired fabric-like pattern during the molding of the base material.

It is desirable that the irregularities include continuous recesses (grooves) in terms of molding, but this is not essential and may be a discontinuous pattern.

Various patterns as shown in FIG. 3 are conceivable as the concavo-convex pattern, but the basic pattern is a fabric pattern of orthogonal crosses or checkered patterns. In FIG. 3, the black portion is the groove portion 7.

FIG. 1 is a perspective view of the surface block of the base material 3 provided with a groove pattern having a cross pattern, and FIG. 2 is an enlarged view of the groove portion 7. The size of the convex portion 5 is, for example, about 1.5 × 1.5 mm, and the depth × width of the groove portion 7 is, for example, about 0.18 × 0.5 mm.

In order to obtain a fabric-like appearance excellent in aesthetics and texture, the depth x width of the groove portion 7 is (0.05 to 1.5 mm) x (0.2 depending on the pile length described later. ~ 5 mm)
The range is good. The reason is empirically confirmed, but because the depth of the groove is less than 0.05 mm, the contrast is insufficient and the fabric tone does not appear,
If it exceeds 1.5 mm, flocking cannot be performed well and the pile in the groove tends to be buried, resulting in too much contrast and making the fabric look unnatural.

Next, regarding the groove width. This is because if it does not reach 0.2 mm, the contrast is still poor and it is difficult to produce a fabric tone, and if it is 5 mm or more, the contrast is too high and the fabric tone does not appear. The depth, width, etc. of the recess (groove) 7 may not be uniform, and may be uneven. The same applies to the convex portion 5.

As a means for giving unevenness to the synthetic resin base material 3, a metal mold is used for injection molding or extrusion molding.
If it is a sheet-shaped substrate, this can be done by an embossing roll or the like.

The pile pile 9 needs to be a substantially straight cut pile having a uniform length and diameter. Materials are nylon, polyester, acrylic, aramid, vinylidene, vinylon, PP, PV
C, polyurethane, carbon, etc.

A diameter of 1 to 5 denier, preferably about 3 denier, and a length of 0.5 to 2.0 mm are preferably used.

The reason is that if it does not reach 0.5 mm, unevenness (step) remains on the surface appearance after flocking, resulting in poor aesthetics and texture.

If the thickness is 2.0 mm or more, the pile after hair transplantation tends to fall asleep, resulting in poor hairing. Therefore, the texture will be inferior.

The adhesive coating adhesive is not particularly limited, but a quick-drying adhesive is desirable in terms of time and cost. Generally, spray coating is preferred as the coating means. The film thickness of the semi-dry coating film layer 11 is about 20 μm at the convex portion.

Flocking Method The flocking method used in the present invention is basically electrostatic flocking.
The electrostatic flocking method is very convenient in the present invention because flocking can be performed on the base material in a piled state as in the invention described in JP-A-2-59068 described above. However, the other flocking method, that is, the above-mentioned compressed air method (Japanese Patent Laid-Open No. 6-242242)
3-224767) and a solvent dispersion method (JP-A-3-1546).
71) and the like can also be used in the present invention.

Drying Drying is carried out using a generally used hot air drying oven or the like. In addition, an infrared heater, an electric induction heating furnace, etc. are also used.

Removal of Unnecessary Pile After drying, the insufficiently fixed pile is removed by air blow and brushing.

[0032]

Since the base material groove portion has a larger amount of adhesive adhered than the convex portion, the number of standing piles is denser than the convex portion. Therefore, the groove portion absorbs more light than the convex portion, so that the groove portion looks darker (darker). Therefore, when you look at the entire flocked layer, it seems that a beautiful fabric-like surface and texture will appear (see Fig. 7).

[0033]

By carrying out the present invention, all the above objects can be achieved. That is, it has become possible to obtain a flocked interior part having a patterned flocking layer having a fabric-like texture and the like that is more aesthetically pleasing than conventional ones at low cost and in a short time.

[0034]

EXAMPLE FIG. 4 is a perspective view of a molded base material 3A (before flocking) having an uneven pattern of a pillar interior material (automobile part), which is an example, and FIG. Further, FIG. 6 is a perspective view of the completed pillar interior material (flocked interior parts) 3B, and FIG. 7 is a BB cross-sectional view thereof.

The base material (see FIGS. 4 and 5) is ABS resin, and the color is a cream type natural color. The groove depth × width is 0.18 mm × 0.5 mm.

The color of the adhesive is gray and the thickness of the coating film is about 20 μm (convex portion).

The pile is made of nylon and has a length x diameter of 1 mm x
It was 3 denier and the color used was a semi-transparent gray type color. The flocking was performed by the electrostatic flocking method.

[0038]

[Effects of Examples] As a result, pillar interior materials having a beautiful fabric appearance and a good texture as shown in FIGS. 6 and 7 were obtained.

As shown in FIG. 7, a large amount of adhesive was stored in the groove portion, and the pile was firmly fixed.

[Brief description of drawings]

FIG. 1 is a perspective view of a surface block of a base material 3 provided with groove portions having a checkerboard pattern.

FIG. 2 is an enlarged view of a groove portion 7.

FIG. 3 is a plan view of various uneven patterns.

FIG. 4 is a perspective view of a molded base material (before flocking) having a relief pattern of a pillar interior material (automobile part) which is an example.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a perspective view of a pillar interior material (flocking interior part) that is a finished product.

7 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

 3 Base material made of synthetic resin 5 Convex part 7 Recessed part (groove part) 9 Pile 11 Adhesive layer

Claims (2)

[Claims] 1. A flocked interior part comprising a synthetic resin base material surface and a patterned flocking layer, wherein the patterned flocking layer is formed in accordance with a predetermined uneven pattern on the surface of the synthetic resin base material prepared in advance. Characterized flocked interior parts. 2. A base material molding step of molding while giving a necessary uneven pattern in advance, an adhesive application step, an electrostatic flocking step of flocking a fixed length of pile on a semi-dry adhesive layer, and a drying step. A method for manufacturing a flocked interior part, characterized by comprising a step and an unnecessary pile removing step.