JPH03224660A - Flocking method of interior parts for automobile - Google Patents

Abstract

PURPOSE:To display characters, etc., on a flocked base by spraying fiber piles dispersed in a solvent onto a coated surface prior to curing of the coating material applied on a molding, then spraying the fiber piles dispersed in the solvent on the sprayed surface masked with a member having patterns, etc. CONSTITUTION:A non-fast setting coating material is applied on the molding 1 and the fiber piles dispersed in the solvent are sprayed onto the painted surface by a spray gun 3 prior to the curing of the coating material. The sprayed surface 4 is masked with the member 6 having the patterns, etc. The excess piles are removed after the drying and curing thereof. As a result, the arbitrary characters, marks, pattern, etc., are displayed particularly on the flocked base.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for flocking interior parts of automobiles, and particularly to a method for displaying arbitrary characters, marks, patterns, etc. on a flocked area.

(Prior Art) Regarding the flocked interior parts of automobiles, it is required to display arbitrary characters, marks, patterns, etc. in different colors on the flocked material.

As this method, in the case of electrostatic flocking, a method is known in which pile nozzles of multiple colors are prepared and the pile nozzles are flocked one by one or small portions at a time under computer control.

However, it has poor work efficiency and is not suitable for large parts or remote production. On the other hand, methods have been proposed in which short piles are mixed into the paint and applied together with the paint (for example, JP-A-1-115753, JP-A-1-119371, etc.), or the color tone is adjusted by the paint color. It is necessary to
Furthermore, it requires a plurality of pile nozzles, and the feeling of flocking is basically inferior, making it difficult to obtain high-quality flocked products.

(Problem to be Solved by the Invention) Therefore, it is desired to provide a simple hair transplanting method that displays arbitrary characters, marks, patterns, etc. in different colors, but drastic improvements cannot be expected by improving the above conventional methods. .

By the way, the present inventors have proposed a "flocking method in which pile is mixed in a solvent and then sprayed," and have succeeded in manufacturing a product with good flocked quality using a simple method. Therefore, it is an object of the present invention to provide a hair transplantation method based on this method that can meet the above-mentioned needs.

(Means for Solving the Problems) According to the above-mentioned "hair transplantation method in which pile is mixed in a solvent and sprayed," the base coat agent and the pile are applied separately, and depending on the relationship between the two, various colors can be obtained. 1.9 It was developed with a focus on the ease of setting the molded body, and involved the process of applying a non-quick-curing paint to the molded body, and the process of applying fiber piles dispersed in a solvent to the painted surface before the paint hardened. A first step of pile spreading to spread, a step of masking the above-mentioned spreading surface with a member having a pattern, etc., and a second pile spreading step of spreading the fiber pile dispersed in a solvent onto the above-mentioned coated surface. The present invention provides a method for flocking interior parts for automobiles, the gist of which is a process of removing excess pile after drying and curing.

(Targets for flocking) In the present invention, automotive interior parts, rims, consoles, interior parts, etc. - It is applied to molded bodies such as lumen panels, and the molded bodies can be various plastic molded bodies and metal molded bodies.

(Base Coat) A non-quick curing paint is used as the base coat paint, but it is preferable to use a solvent-containing urethane paint whose curing speed can be easily adjusted. A matting agent added to the base coat agent of such a paint may also be used. Further, if necessary, pigments or the like may be added to obtain 111 colors.

Application of such base coats is generally preferably, but not limited to, spray painting. However, the appropriate film thickness is 20 μm or more for the purpose of securing the pile.

(Solvent for Fiber Pile) The fiber pile spray-coated onto the base coat is dispersed in a solvent and used. As the fiber pile, it is possible to use a foot pile or a flocked pile consisting of polyester, rayon, or nylon fibers having lengths of 03 to 100 mm. In particular, when coloring, it is preferable to use cotton pile. On the other hand, as the solvent, it is preferable to use trichloroethane alone or a mixture with trichloroethane toner, which has a specific gravity equal to or higher than that of the flocking pile. The appropriate mixing ratio is 3 to 15% by weight of the fiber pile and 55 to 97% by weight of the solvent, and if necessary, 1 to 30% by weight of an adhesive soluble in the solvent may be added.

In addition, if the amount is 20% by weight or less, c. trichlorethylene,
Solvents such as benzene hexachloride, chlorotoluene, and quinone may be mixed.

(Spraying Step) The first and second pile spreading steps are performed by spraying the composition of the fiber pile and solvent using an air spray gun. Due to the need for hard 11 to the base coat,
It is preferable to spray it before the painted surface hardens. Also,
In order to increase the softness of the finished product, it is preferable to extend the spraying time.

(Masking Step) Masking in the second step is performed so as to cover the portion where the pile density i is small. Usually a masking member is used. This masking member may be formed by a method used in ordinary painting when the pattern is rough and large or when the boundaries do not need to be so clear. In this case, since the masking member and the painted surface are separated by a certain distance, the uncured primary pile distribution surface will not be damaged. On the other hand, if it is desired to make the boundary clear, as shown in FIG. 2, the masking member 6 is made of a soft material such as rubber, and a needle-shaped protrusion 61 is formed on the bottom of the masking member 6, and the masking member 6 is placed close to the surface to be sprayed secondary. It is better. Microscopically, the protrusions cause scratches, but they are not bad enough to affect the finish.

(Drying) After spraying, the product is usually left to dry naturally for a while and then placed in a drying oven or hot air oven for rapid hardening. At this time,
The base coat agent and the adhesive in the fiber pile and solvent composition are dried and cured.

(Removal of unnecessary piles) Removal of unnecessary piles is carried out with the aim of leaving only completely fixed piles, and is usually carried out by air blowing and brushing.

(Effects) According to the present invention, colored or uncolored pile is sprayed on an uncured base coat, and the density of the sprayed pile is adjusted by masking, so if the base coat and the pile are made to have different colors, When the pile density is low, the color looks intermediate to the base color, and when the pile density is high, it approaches the pile color. On the other hand, if the base foot is of the same type as the pile, the brightness and reflectance will change depending on the pile density, giving the impression of a different color. Therefore, it is possible to express arbitrary characters, marks, patterns, etc. on the flocked area depending on the masking form. For example, the pattern form may be as shown in FIG.

In addition, it is possible to express arbitrary characters, marks, patterns, etc. on the flocked area using a single spray nozzle.
Manufacturing becomes easier.

Hereinafter, the method of the present invention will be explained in detail based on specific examples shown in the accompanying drawings.

(Example 1) Figures 1 to 1 are explanatory diagrams of each step of the method of the present invention, in which the substrate 1 is a BS resin molded product, and its flocked surface 1 is degreased with a solvent such as isopropyl alcohol. .

Next, ■ acrylic urethane paint (Hisame, manufactured by Ohashi Chemical Co., Ltd., color (Munsell symbol: month,
6 Y 3.7/3.0), main agent/curing agent-10
Mix with /4, add /Cina-15% and spray gun 3
(Manufactured by Iwata Painting Machine Co., Ltd.: WIDER-77) with a thickness of approximately 2
A base cord coating film 2 is formed by spray coating to a thickness of 0 μm or more.

■ Apply a mixture of the following composition to the uncured base coat coating surface 2 using the spray gun 3 at a pile concentration of 200 to 2.
50 pieces/C are applied to an apparent thickness t of about 0.5 mm to form the primary spray surface 4.

composition Cotton pile (manufactured by Nirasen Co., Ltd.) 3 denier (8μm), Length 0.5mm.

Color 8.5 Y R5, 8/3.3 8% by weight
Trichloroethane 92% by weight■ Using a masking plate 6 having an opening pattern as shown in Figure 3■-■, the mixed solution was sprayed with the spray gun 3 to a pile concentration of 350.
~400 pieces/Cff1ffi, apparent thickness t-approximately 0.7
The secondary dispersion surface 5 is formed by applying the powder to an area of mm.

■After spraying, leave it for about 10 minutes and dry it in a hot air oven (8
0°C for 30 minutes). Thereafter, insufficiently fixed piles were removed by air blowing and brushing.

The first sprayed surface is yellowish brown, and the second sprayed surface has an almost ocher color scheme.The pattern is vividly depicted.

The results are shown in Table 1.

The following margins (Example 2) The patterns shown in Figure 3 ■-○ are formed by the above first and second spraying steps, but the pattern shown in Figure 3 ■-@ is formed by dividing the second spraying process into two steps. Therefore, a total of three sprays are performed, and a circular double pattern in which the secondary spray surfaces overlap is formed.

Other than that, the same steps as in Example 1 are carried out.

[Brief explanation of drawings]

Figure 1 - ■ is an explanatory diagram showing each step of the method of the present invention, Figure 2
FIG. 3 is a side view showing an example of a masking plate, FIG. 3 is a plan view showing an example of a pattern that can be formed by the method of the present invention, and FIG. 4 is a diagram showing a color comparison of Example 1. l... Substrate, 11... Flocked surface 2...
...Base coat, 3...Spray gun 4...
...Primary spreading surface, 5...Second spreading surface 6
・・・・・・Masking board

Claims (1)

[Scope of Claims] 1. A step of applying a non-quick-curing paint to a molded body, a first pile spreading step of spreading fiber piles dispersed in a solvent onto a painted surface before the hardening of the paint, and the above-mentioned spreading. a step of masking the surface with a member having a pattern, etc.; a second pile spreading step of spreading fiber piles dispersed in a solvent on the painted surface; and removing excess piles after drying and hardening. A method for flocking automotive interior parts, the method comprising the following steps: