JPS6025279B2 - Transfer painting method to plastic molded products such as block toys and building blocks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for transferring patterns onto plastic molded products such as block toys and building blocks, and particularly to a method for transferring patterns onto the entire surface of a set of plastic molded product blocks.

When thermally transferring onto a plastic molded product using the conventional method using a silicon roll, the transfer sheet and molded product do not come into perfect contact with each other due to the precision of the molding dimensions and the strength of the transfer pressure at the longitudinal seams between plastic blocks, resulting in uneven pattern transfer pressure. There was a drawback that unevenness occurred due to unevenness.

The present invention was invented in order to improve this problem, and is to assemble a plurality of plastic molded products by interposing a thin spacer between each molded product and slightly lower than the surface of the combined molded product. It is characterized by transferring the transfer sheet while keeping it in close contact with the entire surface of the set, and has been found to be extremely effective when transferring patterns to plastic molded products such as block toys and building blocks.

The following description will be made based on the embodiments shown in the drawings.

The illustrated one relates to a block toy. This block toy A is a molded product with the trade name "Diamond Block" (manufactured by Kawada Co., Ltd.) made of impact styrene, and has a hollow structure attached to the ceiling part 2 of a rectangular box body 1 that opens downward. The mating protrusion 3 is integrally formed to protrude,
A partition plate 4 is provided within the box body 1 in correspondence with the engaging protrusion 3 and is integrally formed with the top plate 2. Furthermore, round rod-shaped projections 6 are provided vertically on the inner surface of the wall plate constituting the compartment 5 within the box body centered around the engaging projection 3 partitioned by the partition plate 4.

Therefore, in order to join these block toy units together, the protrusion 3 of another block toy unit is inserted into the compartment 5 so that the protrusion 3 is sandwiched between the partition plate 4 and the protrusion 6.

Since the partition plate 4 is highly elastic, it can be easily attached and detached.

Figure 4 shows an arrangement of five such individual block toys, and when these five individual block toys are transferred onto the surface of the object so as to constitute one picture, the vertical seams are The transfer sheet does not completely adhere to the molded product because it is dented by transfer pressure, etc.

Therefore, unevenness occurs due to uneven patterning and transfer pressure. In order to solve this problem, the present invention is made of plastic with a thickness of 0.3 m/~1/m between the blocks.
This is a device for transferring by inserting a metal subaser, and when a set of blocks as shown in Fig. 4 are arranged in three rows and subasers are inserted between blocks, a subaser 7 as shown in Fig. 7 is used. .

The thickness of this baser is 0.8 / kite, and it is made of PVC.
It is a molded product, and has slit holes 8 for loosening two protrusions 3 of the block, and is located 0.1 m/min from the block surface.
A material with a low medium S value is used.

There are rake protrusions 9, 9 on both ends for easy removal.

As described above, the baser 7 is used to match the shape of the molded product, and the baser 7 is set in each block according to the method of the present invention, and a silicone roll 1 is attached using a styrene transfer sheet 10 based on a polyester film.
FIG. 5 shows the state in which thermal transfer is performed in step 1.

As shown in the figure, the transfer sheet 10' is immediately removed after the transfer.

In the figure, 12 indicates a printed layer that has been transferred.

As described above, when the spacer 7 is transferred between the blocks 1 and 1 by using an intermediary bag, the longitudinal seams between the blocks create gaps where the transfer is not performed due to the spacer 7, but the transfer sheet 10 It completely adheres to the block surface and does not cause unevenness. However, although the pattern at the longitudinal seam is chipped by the gap, the gap is small enough that even if the blocks transferred in this way are roughly aligned, the pattern itself will not be substantially affected.

If you want the pattern to continue perfectly, it is best to make a duplicate pattern in advance on the transfer sheet in the area corresponding to the vertical seam. The illustrated embodiment is for block toys, but blocks can also be transferred in the same manner.

In any case, the present invention is capable of applying a transfer sheet to the entire surface of a plurality of plastic molded products by interposing a thin spacer between each molded product and slightly lower than the surface of the combined molded product. This is a transfer painting method for plastic molded products such as block toys and building blocks, which is characterized by transferring images while adhering them to each other, and the vertical seams between blocks can be painted without being affected by molding dimensional accuracy or transfer pressure. Also, the transfer sheet can be completely brought into close contact with the block by the intervention of the spacer, and there is no unevenness caused by patterning or uneven transfer pressure.

[Brief explanation of the drawing]

Figure 1 is a front view of the block toy. Figure 2 is a top and bottom view of the same. FIG. 3 is a cross-sectional view of the same as above. FIG. 4 is a plan view showing a set of five flock toys.
FIG. 5 is an explanatory diagram showing the method of the present invention. FIG. 6 is a perspective view showing how the spacer is used. Figure 7A shows a plan view and cross-sectional view of the baser. A...Block toy, 7...
... Subaser, 10 ... Transfer sheet, 11.
·····silicon. Rules. Figure 1 Figure 3 Figure 2 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. A thin spacer is interposed between each molded product of a plurality of plastic molded products and is slightly lower than the surface of the combined molded product, and the transfer sheet is transferred while being in close contact with the entire surface of the combined molded product. Transfer painting method to plastic molded products such as block toys and building blocks.