JPS6042029A - Imparting of solid character, pattern or the like to molding - Google Patents

Abstract

PURPOSE:To rationally impart solid and complicated characters and a pattern to a molding by a method wherein a sol-like vinyl chloride resin fills dents making up characters or the like formed in a transfer die, made gelatinous by heat and a molding is pressed on the die which is cooled down. CONSTITUTION:A sol-like vinyl chloride resin paste 3a fills dents 2 making up characters, a pattern and the like formed on a transfer die 1 and then, heated with a heater 4 to be made gelatinous 3b. Then, the surface of a molding 5 made of a synthetic resin at least in the part intended for imparting characters, a pattern or the like is pressed on the rotary die 1 and the gelatinous vinyl chloride resin in the dents 2 is put tight on the surface of the molding. Thereafter, solid characters, a pattern or like is imparted to the surface of the molding easily and rationally by cooling.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for imparting characters, patterns, etc. to moldings.

(Description of Prior Art) In a mall, for example, a side mall for automobiles,
In order to increase the product value, letters, patterns, etc. are added to the surface of the mall. As a method to create the pattern, ■ double mold the pattern part on the surface of the pre-formed molding by injection molding.■
Conventionally, Go's method has been used, in which the created pattern is adhered to the surface of the molding using an adhesive or the like, and the surface of the molding is painted with a manufacturer. However, method (2) requires molding twice, which increases the number of man-hours. Furthermore, since the injection molding of the pattern part involves outsert molding on the surface of the molding, the joining line between the molding and the pattern part ( It has the disadvantage that the border pattern tends to be irregular and defective products are likely to occur, resulting in poor yield and high manufacturing costs.
For ■, the cost of gluing increases, and in the case of complex patterns, it is difficult to adhere, and the patterns that can be created are limited. For ■, the pattern is flat and monotonous. It had some problems.

(Objective of the Invention) The present invention has been made in view of the above points, and its object is to create three-dimensional and complex characters.

To provide a method for rationally imparting a pattern to a molding.

(Structure of the Invention) The gist of the present invention is that characters formed on a transfer mold,
The four parts that make up the pattern are filled with sol-like vinyl chloride resin paste, heated to form a gel, and the molding surface is pressed against the transfer mold.By cooling, a three-dimensional vinyl chloride resin paste is formed on the molding surface. The goal is to add unique characters, patterns, etc.

The present invention will be explained below with reference to drawings 1 to 6 showing the manufacturing process.

(1) Filling with sol-based vinyl chloride resin paste (Figures 1 and 2) Characters, patterns, etc. formed on the flat or cylindrical transfer mold 1 are
ft PVC resin paste 6 in the form of a sol to the four parts 2
Fill a.

(2) Gelation of vinyl chloride resin paste (Fig. 6) Excess sol-form vinyl chloride resin paste adhering to the surface of the transfer m1 is removed with a spatula or doctor knife, and then heated with a heating device 4 such as a heater. Then, a gel-like vinyl chloride resin 6b is obtained. When removing the excess sol-form vinyl chloride resin paste, the surface of the sol-form vinyl chloride resin paste filled in the recess 2 is made to be the same as the surface of other parts, or to be in a slightly raised state.

(3) Transferring characters, patterns, etc. to the surface of the molding (Fig. 4) Press the molding 5 against the surface of the transfer mold 1, bringing the surface of the molding 5 into close contact with the gel-like vinyl chloride resin 3b in the four parts 2, and harden the vinyl chloride resin by cooling it in
Letters and pattern capes made of vinyl chloride resin are transferred onto the surface of the molding 5. still.

As for the material of the molding, the surface on which the letters and pattern cape are transferred should be made of synthetic resin, and it is especially preferable to use a material that has good compatibility with vinyl chloride resin, and soft vinyl chloride resin is preferable! & selection.

(4) Removing the product from the transfer barrel (Figures 5 and 6)
After the characters and pattern portions 6 made of vinyl chloride resin have been cured, the product is taken out from the transfer mold 1. FIG. 6 shows the obtained product, in which three-dimensional letters and patterns 6 are formed on the surface of the molding 5.

(Effects of the Invention) As described above, the present invention is characterized in that the recesses constituting the characters, patterns, etc. formed on the transfer mold 1 are filled with a solvable vinyl chloride resin paste, the paste is heated to form a gel, and the transfer mold By pressing the synthetic resin molding surface and cooling it, three-dimensional characters, patterns, etc. are transferred onto the molding surface. Therefore, according to the present invention, the boundary mu between the characters, pattern parts and the molding is always constant, and complex characters and patterns can also be applied to the molding surface, and three-dimensional characters, patterns, etc. can be created without being subject to riverside restrictions. It can be formed beautifully without any problems. Also, in terms of work, it is simple and rational, such as filling with vinyl chloride resin paste and suppressing molding.

[Brief explanation of drawings]

1 to 5 are perspective views illustrating the manufacturing process of the present invention, and FIG. 6 is a perspective view of a product obtained by carrying out the present invention. Vinyl chloride resin paste, 3b is gelled vinyl chloride resin, letters and patterns, 4 is a heating device, and 5 is a molding. Fig. 1 Fig. 2 Fig. 4 Fig. 6

Claims (1)

[Claims] Fill the recesses forming the characters and pattern capes formed on the transfer mold with sol-like vinyl chloride resin paste, turn it into a gel by heating, and at least the part to which the characters, patterns, etc. are to be applied is made of synthetic resin on the surface of the molding. is pressed against the transfer mold, the four parts of the gel-like vinyl chloride resin and the surface of the molding are brought to VB'fft, and the molding is cooled. Three-dimensional letters on the mall,
How to add pattern #.