JPS629870A - Sand blast construction method - Google Patents

Abstract

PURPOSE:To enable a processed surface to use even a material with no heat resisting property, by transcribing an adhesive agent printed layer to the processed surface under the normal temperature so as to prevent energy from wasting. CONSTITUTION:The method heats a hot melt type adhesive agent 2 to be melted and printed in a predetermined shape on the surface of a mold releasing base material 1. The method, adapting this adhesive agent printed layer 2 to a processed surface 5, glues the mold releasing base material 11 to be attached. Next the method, exfoliating said attached mold releasing base material 1, transcribes the adhesive agent printed layer 2 from the mold releasing base material 1 to the processed surface 5 under the normal temperature. Thereafter, the method, sand blasting the processed surface 5 transcribing said adhesive agent printed layer 2 and eliminating a part excepting the adhesive agent printed layer 2, forms a predetermined rugged shape on the processed surface 5. Next the method, removing the adhesive agent printed layer 2 by grinding and washing or the like, obtains the processed surface 5 forming the predetermined rugged shape.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sandblasting method for forming predetermined patterns, characters, etc. on the surface of glass, wood, metal, ceramics, etc. to be treated.

[Background of the invention]

In this type of sandblasting method, sandblasting is performed after the surface to be treated is coated with a protective layer of a predetermined shape, and by removing the surface to be treated other than the protective layer, a predetermined uneven shape is created on the surface to be treated. It is being done to form a

[Conventional technology]

Conventionally, a protective layer has been formed by printing a predetermined shape directly onto the surface to be treated using ink.

Alternatively, a protective layer has been formed by applying a photosensitive resin to the surface to be treated, masking it in a predetermined shape, exposing it to light, and removing the semi-photosensitive uncured portion.

[Problem that the invention seeks to solve]

However, in the above conventional methods, printing is difficult in the former method when the surface to be treated is a curved surface, and in the latter method, the photosensitive resin is expensive and the number of steps is large, which is time-consuming. Furthermore, in the conventional method, the retention film is relatively hard and easily abraded during sandblasting, so the film thickness must be increased, resulting in high material costs.

[Means for solving problems]

As a means for solving the above-mentioned conventional problems, the present invention provides a release base material (1) by heating and melting a hot-melt adhesive.
Step 1 of printing a predetermined shape on the surface, the surface to be treated (5),
(5) Step 2 of abutting the adhesive printed layer (2) on A and pasting the #I-shaped material 11, peeling off the release base material (1) and attaching the surface to be treated (5), ( 5) The adhesive printing layer (2) on A
Step 3 of transferring, treated surface (5), (5) A
k Step 4 of removing parts other than the adhesive print layer (2) by sandblasting; Step 5 of removing the adhesive print layer (2)
, provides a sandblasting method consisting of the above steps 1, 2, 3, 4, and 5.

The method of the present invention will be explained in detail below in order of steps.

The hot melt adhesive used in Step I is synthetic rubber or ethylene-vinyl acetate copolymer.

Polyamide, polyvinylidene chloride, acrylic resin.

Urethane resin, rosin, petroleum resin, etc. should be appropriately blended, and a material that melts when heated to a predetermined temperature and is sticky at room temperature and has a large cohesive force is desirable. Adhesives that have the following properties are recommended. The adhesive is melted by heating to its melting point, for example, about 180° C., and the melt is printed in a predetermined shape on the surface of a release substrate such as release-treated paper, 1 lath snack film, etc. For printing, for example, a silk screen is used as shown in FIG. In the figure, (1) is a release base material, and a molten adhesive (2) A is applied to a predetermined surface of the release base material (1) through a silk screen (3) through a squeegee (4) K. printed on the shape.

At this time, it is desirable that the release base material (1) is also heated to about the melting point of the adhesive. After printing the adhesive, it is cooled to obtain a release base material (1) on which an adhesive printed layer (2) is formed as shown in FIG. The adhesive may be printed by a gravure roll method other than a silk screen method.

In step 2, as shown in FIG. 3, the adhesive printing layer (2) is brought into contact with the surface to be treated (5) and the release base material (1) is attached. Since the adhesive printing layer (2) is adhesive at room temperature, the release substrate (1) is attached to the treated surface (5) at room temperature. Furthermore, since the release base material (1) and the adhesive printing layer (2) are flexible, the present invention can be applied even if the surface to be treated (5) A is a curved surface as shown in FIG.

The surface to be treated (5), (5) A includes surfaces of glass, wood, metal, ceramics, plastic, etc.

In step 3, the release base material (1) attached to the surface to be treated (5) is peeled off. At this time, the adhesive printing layer (2) is attached to the surface to be treated (5).
The release base material (1) and the adhesive printed layer (2) are peeled off by adhesion to the sides, and thus the adhesive printed layer (2) is removed as shown in FIG.
2) is transferred to the surface to be processed (5).

In step 4, sandblasting is performed on the surface to be treated (5) to which the adhesive print layer (2) has been transferred in this manner.

At this time, the adhesive printing layer (2) protects the surface to be treated (5) from sandblasting, and the portion of the surface to be treated (5) other than the adhesive printing layer (2) is removed by the sandblasting. As shown in FIG.
is formed. At this time, since the adhesive printing layer (2) has viscoelasticity, it absorbs the impact caused by the sandblasting and is hardly abraded by the sandblasting itself.

In step 5, the adhesive printing layer (2) is removed by grinding, washing with an organic solvent, etc., and thus a treated surface (5) on which a predetermined uneven shape f11) is formed as shown in FIG. 7 is obtained.

In step 1, as shown in FIG. 8, silicone resin, urethane resin, acrylic resin, styrene resin, vinyl acetate resin, polyvinyl chloride, polyethylene, polypropylene, etc. are easily applied to the surface of the releasable base material (1) by sandblasting. An abrasive synthetic resin layer (6) that is worn may be formed. When the releasable base material (11) is peeled off in step 3, the abrasive synthetic resin layer (6) is transferred to the pressure-sensitive adhesive printing layer (2) side as shown in FIG. The layer (6) protects the adhesive print layer (2), which is easily deformed, and prevents it from deforming or shifting its position.Step 4
It is easily abraded and removed by sandblasting.

[Effect]

The present invention has the following effects based on the above configuration.

Since hot-melt adhesives are melted by heating, they can be printed on the surface of a release substrate without using a solvent. Since the adhesive printing layer has tackiness at room temperature, it can be transferred to the surface to be treated at room temperature. At this time, since the release base material and the adhesive print layer are flexible, even if the surface to be treated is curved, the release base material follows the shape and is attached. Because of its adhesiveness, it absorbs the impact during sandblasting. [Effects of the Invention] Therefore, in the present invention, the hot melt adhesive is inexpensive and there is no need to worry about using organic solvents, so the work environment will not be deteriorated. Furthermore, since the adhesive printing layer is transferred to the surface to be treated at room temperature, there is no need for heating, which prevents wasted energy and can be used even if the surface to be treated is not heat resistant. Since the layer has abrasion resistance, the thickness of the printed layer can be reduced.

The present invention is also applicable even if the surface to be treated is a curved surface.

[Brief explanation of drawings]

The drawings are process explanatory drawings of the present invention. Fig. 1 is an explanatory drawing of step 1 in the case of silk screen printing, Fig. 2 is a schematic diagram of a release base material on which an adhesive printing layer is formed, and Fig. 3 is a schematic diagram of a release base material on which an adhesive printing layer is formed. An explanatory diagram of step 2, FIG. 4 is an explanatory diagram when the surface to be treated is a curved surface in step 2, FIG. 5 is an explanatory diagram of step 3, FIG. 6 is an explanatory diagram of step 4,
FIG. 7 is an explanatory diagram of step 5, FIG. 8 is an explanatory diagram of step 1 in another embodiment, and FIG. 9 is an explanatory diagram of step 3 in another embodiment. In the figure (1)...Release base material, (2)A...Adhesive melt, (2)...Adhesive printed layer, (5), (51
A...Surface to be treated, 6D...Uneven shape Patent applicant Fuji Seisakusho Co., Ltd. Fang 1, Fang 2, Fang 3

Claims (2)

[Claims] (1) Step 1 of heating and melting a hot-melt adhesive and printing it in a predetermined shape on the surface of the release base material; Step 2 of attaching the release base material by bringing the pressure-sensitive adhesive printing layer into contact with the surface to be treated; Step 3 of peeling off the release base material and transferring the adhesive print layer to the surface to be treated Step 4 of sandblasting the surface to be treated to remove parts other than the adhesive print layer Step 5 of removing the adhesive print layer Sandblasting method consisting of the above steps 1, 2, 3, 4, and 5 (2) Step 1 of printing in a predetermined shape on the surface of the release base material, which has an abrasive synthetic resin layer formed on the surface by heating and melting the hot-melt pressure-sensitive adhesive.The pressure-sensitive adhesive printing layer is brought into contact with the surface to be treated and then released. Step 2 of pasting the mold base material. Step 3 of peeling off the mold release base material and transferring the adhesive print layer together with the abrasive synthetic resin layer onto the treated surface. Sandblasting the treated surface to remove the adhesive print layer. Step 4 of removing the other parts together with the abrasive synthetic resin layer Step 5 of removing the adhesive print layer Sandblasting method consisting of the above steps 1, 2, 3, 4, and 5