JPS63158296A - Hair line or print processing of display panel - Google Patents

Abstract

PURPOSE:To enable hair line processing which leaves part of a base surface or metallic color print on a light-transmitting resin substrate precisely and easily and make the processing less costly by applying removable ink to an unprocessed surface as a mask and performing a desired processing. CONSTITUTION:A removable ink layer 3 is formed by applying removable ink on a base 1 with the held of any appropriate printing means such as silk screen printing. An ordinary ink layer 4 is formed on the entire surface including the ink surface of the removable ink layer 3 by properly printing with an ordinary ink. A commercial-grade hair line film 5 is subjected to hot stamp working process using a thermal roller 6 which presses said film against the ink surface of the ordinary ink layer 4. Thus a hair line processed surface 7 is formed. The removable ink layer 3 is removed from the surface of the base. The processed surface 7 applied on the removable ink layer 3 through removal process is simultaneously removed to obtain a hair line-processed product 2. This product undergoes metallic color application processing using evaporation or sputtering applied to the entire surface including an ink surface of the removable ink layer 3.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a technique for partially applying hairline processing or printing processing to the surface of a transparent synthetic resin base material while leaving the base material surface intact. In particular, the present invention relates to a hairline or printing processing method for a display panel.

[Conventional technology]

Conventionally, it has been used as a technology to partially apply hairline processing or metallic color printing to plastic plates, such as translucent display boards for car stereos and car radios, or car finishers. Hot stamping is a well-known method, but hairline processing involves processing with the base material surface exposed, so it is not possible to leave an accurate unprocessed surface, resulting in inferior quality. Was.

In addition, in the case of metallic color printing, not only is an expensive special jig required to leave an accurate unprocessed surface on the base material surface, but also distortion occurs in the base material due to heat, resulting in the formation of a molded product. There was a problem that this could cause problems.

[Problem that the invention seeks to solve]

The present invention has been developed in view of the above-mentioned problems, and it is possible to accurately and easily perform hairline processing or metallic color printing processing on a translucent resin substrate, leaving a part of the base material surface, and the processing. The purpose of this invention is to propose a hairline or printing processing method for a display panel that can be carried out at low cost.

[Means for solving problems]

The hairline or printing processing method for a display panel according to the present invention is characterized in that the unprocessed surface is masked with a removable ink to perform the desired processing, and the processing method is performed on a transparent synthetic resin base material to be processed. On the processed surface side, as a first step, a releasable ink layer is formed on the non-processed part by an appropriate printing method using an ink that has releasability to the base material, and as a second step, the releasable ink layer is formed on the non-processed part. After performing the desired processing on the entire surface, the third step is to peel off the releasable ink layer from the surface of the base material.

In addition, the processing in the second step is a step in which an ink layer is first formed using ordinary ink, and a hairline processing is applied to the surface of the ink layer using a hot stamping method, or a metallic color coating processing is performed using a vapor deposition or sputtering method. Change the selection depending on the purpose.

[Effect]

In the above process, the removable ink layer applied to the processed surface of the base material in the first step has a so-called "masking" effect, so it is difficult to remove the peelable ink layer during hairline processing or metal color coating in the second step. The hairline finish or metallic color coating applied to the releasable ink surface is simultaneously removed when the releasable ink layer is peeled off from the base material surface in the third step, and the unprocessed surface of the base material is exposed.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the hairline or printing processing method for a display panel according to the present invention will be described below with reference to the drawings.

FIGS. 1 to 6 show an example of a hairline processing method for a display panel, and will be explained in accordance with the order of the steps.

FIG. 1 shows a substrate 1 to be processed, which is made of a translucent resin such as a plastic resin, on which a hairline process is applied to a partition B of a processed surface 2, leaving a partition A.

(1) As a first step, as shown in FIG. 2, the releasable ink layer 3 is formed on the section A by an appropriate printing method such as screen printing using an ink that has releasable properties on the base material l. do.

(2) Next, as a second step, as shown in FIG. 3, the entire surface including the ink surface of the releasable ink layer 3 is printed with ordinary ink by appropriate printing.
form.

(3) Next, as a third step, as shown in FIG. 4, a hot stamping process is performed while pressing a commercially available hairline film 5 against the ink surface of the normal ink layer 4 with a heat roller 6 to form a hairline. Form surface 7.

(4) After that, as a fourth step, as shown in FIG. 5, the releasable ink layer 3 is peeled off from one surface of the base material,
Through this peeling process, the hairline processed surface 7 formed on the surface of the normal ink layer 4 applied to the releasable ink layer 3 is also removed at the same time, and the section A of the base material 1 as shown in FIG. A hairline processed product a remaining in the same state can be obtained.

Next, FIGS. 7 to 11 show an example of a method for coating a display panel with a metal color, and will be explained in the order of the steps.

FIG. 7 shows the substrate 1 to be processed, which is made of a translucent resin such as plastic resin, and has metal colored letters rA on the back side 2.
BJ 8 is drawn, and the ground portion 9 leaves one side of the base material.

(1) As a first step, as shown in FIG. 8, the releasable ink layer 3 is applied to the base portion 9 by an appropriate printing method such as screen printing using an ink having releasable properties on the base material 1. Form.

(2) Next, as a second step, as shown in FIG. 9, the entire surface including the ink surface of the removable ink layer 3 is subjected to a metal color coating process by vapor deposition or sputtering method. A deposited layer 10 is formed.

(3) After that, as a third step, the releasable ink layer 3 is peeled off from one surface of the base material as shown in FIG. The metallic color coating layer 10 is also removed at the same time, leaving the base portion 9 of the base material 1 on the substrate surface as shown in FIG. You can get finished processed products.

〔Effect of the invention〕

Since the hairline or printing processing method for a display panel according to the present invention is configured as described above, the processing can be applied to the processed portion of the processed surface due to the masking effect of the removable ink layer applied to the base material surface. In order to reliably partition and block the transparent resin substrate, it is possible to accurately and easily perform hairline processing or metallic color printing processing that leaves a part of the base material surface on the translucent resin substrate, and to perform the processing at low cost. It has the feature that it can do the following, and the effects after implementation of the present invention are extremely large.

[Brief explanation of the drawing]

The drawings show an embodiment of the hairline printing method for a display panel according to the present invention, and FIGS. Figures 11 through 11 are explanatory diagrams showing one embodiment of a method for coating a display panel in a metal color in the order of steps. 1... Base material 3... Peelable ink layer 4.
・・Normal ink layer 5・Hairline film 6・
・Heat roller 7...Hairline processed surface lO・
...Metal color coating layer a...Hairline processed product b...Metal color coating processed product Patent applicant Koito Seisakusho Co., Ltd. Representative Patent attorney 1) Kazu younger brother 1 Figure 3...II release ink layer

Claims (3)

[Claims] (1) In the first step, a layer of releasable ink is applied to the non-processed portion of the transparent synthetic resin base material to be processed using appropriate printing means using ink that has releasability to the base material. A hairline or printing processing method for a display panel, which comprises: forming a hairline or printing layer on the entire surface including the releasable ink surface as a second step, and peeling off the releasable ink layer from the base material surface as a third step. . (2) The processing in the second step is a step of first forming an ink layer using ordinary ink, and applying hairline processing to the surface of the ink layer using a hot stamping method. The hairline or printing processing method of the display panel described. (3) The hairline or printing processing method for a display panel according to claim 1, wherein the processing in the second step is a metallic color coating processing using a vapor deposition or sputtering method.