JPH0542504A - Temporary fixing method for surface layer material onto substrate - Google Patents

Abstract

PURPOSE:To fix a surface layer material temporarily by temporary fixing adhesives positively without burying a recessed section for temporary bonding with adhesives for main fixing. CONSTITUTION:A recessed section 2 for temporary bonding is concavely provided at the proper position of the surface of a substrate 1 while adhesive escaping recessed sections 9 are recessed so as to be adjoined in the longitudinal direction of the substrate 1 in the vicinity of the recessed section 2 for temporary bonding. When the substrate 1 is forwarded in the longitudinal direction 1 of the base material 1 and the surface of the substrate 1 is coated with adhesives 3 for main fixing by a spreading roll, the spreading roll is passed through the adhesive escaping recessed sections 9 before the roll passes through the recessed section 2 for temporary bonding, and the collected section of adhesives 3 for main fixing as the remainder of coating is introduced into the adhesive escaping recessed sections 9. The recessed section 2 for the temporary bonding of the substrate 1 coated with adhesives 3 for main fixing is charged with temporary fixing adhesives 4 as instantaneous adhesives. A surface layer material 6 is superposed onto the base material 1, and the surface layer material 6 is temporarily fixed to the substrate 1 by temporary fixing adhesives 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique used for attaching a surface layer material to a base material, and more particularly to a method for temporarily fixing the surface layer material to the base material by pressing so that the surface layer material is not displaced. Is.

[0002]

2. Description of the Related Art Conventionally, a concave portion 2 for temporary adhesion is provided on a surface of a base material 1, a main fixing adhesive 3 is applied to the surface of the base material 1 by a roll coater, and instantaneously adheres to the concave portion 2 for temporary adhesion. A temporary fixing adhesive agent is filled, and the surface layer material is overlaid on the base material 1 in this state, and the base material 1 and the surface layer material are temporarily fixed by the temporary fixing adhesive agent. The temporary adhesion of the surface layer material to the base material 1 prevents press misalignment when the main fixing is performed by the main fixing adhesive 3 by pressing.

However, conventionally, when the main fixing adhesive 3 is applied to the surface of the substrate 1, the application roll 5 is used as shown in FIG. Here, 7 is a feed roll and 8 is a doctor roll. The base material 1 is passed between the coating roll 5 and the feed roll 7, and the main fixing adhesive 3 is applied to the entire surface of the base material 1.

[0004]

However, in the case of the above conventional example, the coating roll 5 is used when the main fixing adhesive 3 is coated.
In some cases, the residual adhesive coating a may be generated, and the temporary bonding recess 2 may be filled. The temporary bonding recess 2 cannot be sufficiently filled with the temporary bonding adhesive, the surface material cannot be temporarily fixed with the temporary bonding adhesive, or the temporary bonding adhesive and the main fixing adhesive 3 are There is a problem in that the adhesive strength of the temporary fixing may be reduced due to mixing, and if the predetermined amount of the temporary adhesive is further filled, the amount of the adhesive increases and the surface material swells when the surface material is pasted. is there.

The present invention has been made in view of the above problems, and an object of the present invention is to prevent the temporary bonding concave portion from being filled with the main fixing adhesive and to use the temporary fixing adhesive for the surface layer material. Another object of the present invention is to provide a method for temporarily fixing a surface layer material to a base material, which can surely and temporarily fix the surface layer material.

[0006]

In order to achieve the above object, a method of temporarily fixing a surface layer material to a base material of the present invention is to form a concave portion 2 for temporary adhesion at an appropriate position on the surface of a base material 1 and for temporary adhesion. Recess 2
Adhesive escape recesses 9 are provided adjacent to each other in the longitudinal direction of the base material 1 in the vicinity of, and the base material 1 is fed in the longitudinal direction of the base material 1 and permanently fixed to the surface of the base material 1 by the coating roll 5. When applying the adhesive 3 for application, the application roll 5 is passed through the adhesive escape recess 9 before passing through the temporary adhesion recess 2 to collect the remaining pool of the main fixing adhesive 3 in the adhesive escape recess 9. Then, the temporary bonding adhesive 4 of the instant adhesive is loaded into the temporary bonding concave portion 2 of the base material 1 on which the main fixing adhesive 3 is applied, and then the surface layer material 6 is superposed on the base material 1 and the temporary bonding adhesive 4 is applied. 4, the surface layer material 6 is temporarily fixed to the base material 1.

[0007]

When the main fixing adhesive 3 is applied to the base material 1 by the application roll 5, even if the main fixing adhesive 3 remains uncoated on the application roll 5, the adhesive 3 first escapes to the adhesive escape recess 9. It can be prevented that the concave portion 2 for temporary adhesion is filled with the adhesive 3 for main fixing. For this reason, the temporary bonding adhesive 4 can be reliably filled in the temporary bonding concave portion 2 and the surface layer material 2 can be reliably temporarily fixed to the base material 1.

[0008]

EXAMPLE As shown in FIGS. 1 and 2, a temporary bonding recess 2 is provided at an appropriate position on the surface of a substrate 1. The temporary bonding concave portion 2 may be a simple circular hole, or may be formed in a double hole shape with a central filling concave portion and a concentric concave portion provided on the outer periphery thereof. Adhesive escape recesses 9 are formed in the vicinity of the temporary bonding recesses 2 of the base material 1 so as to be adjacent to each other in the longitudinal direction of the base material 1.
Is recessed. In the case of the embodiment shown in FIGS. 1 and 2, the adhesive escape recess 9 is formed by a plurality of grooves 9a. The roll coater for applying the main fixing adhesive 3 is composed of a coating roll 5, a feed roll 7, and a doctor roll 8. The main fixing adhesive 3 is an adhesive that cures after a certain period of time, and the temporary fixing adhesive 3 is an instant adhesive, for example, a hot-melt adhesive.

The surface layer material 6 is attached to the base material 1 as follows. The base material 1 is fed between the coating roll 5 and the feed roll 7, and the main fixing adhesive 3 is applied to the surface of the base material 1 by the coating roll 5. At this time, even if a residual portion of the main fixing adhesive 3 remains between the coating roll 5 and the feed roll 7, the coating roll 5 passes through the adhesive escape recess 9 first, so that the adhesive Collected in the escape recess 9,
When the temporary bonding recess 2 passes, the main fixing adhesive 3 does not enter the temporary bonding recess 2, and the temporary bonding recess 2 is not filled with the main fixing adhesive 3. Then, the temporary bonding recess 2 is filled with the temporary adhesive 4, and the surface layer material 6 is overlaid on the base material 1. As a result, the temporary fixing adhesive 4 is cured in a short time, and the surface layer material 6 is temporarily fixed to the base material 1. Next, the surface layer material 6 and the base material 1
Is pressed to cure the main fixing adhesive 3 and the base material 1
The surface layer material 6 is integrated with. Since the surface layer material 6 is integrated with the base material 1 when pressing, the surface layer material 6 for the base material 1
The slippage can be reliably prevented.

FIG. 3 shows another embodiment in which a plurality of temporary bonding recesses 2 are provided in a base material 1, and an adhesive escape recess 9 is provided so as to be adjacent to each temporary bonding recess 2. There is. The adhesive escape recess 9 is formed by an oval hole 9b. Also in this case, when the main fixing adhesive 3 is applied to the base material 1 by the roll coater, it is possible to prevent the temporary adhesion concave portion 2 from being filled with the main fixing adhesive 3 in the adhesive escape concave portion 9.

[0011]

As described above, according to the present invention, the adhesive escape recesses are provided so as to be adjacent to each other in the longitudinal direction of the base material in the vicinity of the temporary adhesion recesses, and the base material is fed in the longitudinal direction of the base material. When applying the main fixing adhesive with the application roll on the surface of the material, pass the adhesive escape recess before the application roll passes the temporary adhesion recess, and bond the remaining pool of main fixing adhesive. Since it is put into the agent escape recess, when the main fixing adhesive is applied to the surface of the base material with the application roll, the main fixing adhesive does not enter the temporary adhesive recess and is not filled, and the temporary adhesive adhesive is securely applied to the temporary adhesive recess. A surface adhesive can be reliably temporarily fixed to the base material by filling with a stop adhesive, and it is possible to reliably prevent the surface material from shifting relative to the base material during this press, and apply the surface material accurately to the base material. It is possible, and it is possible to fill only the temporary adhesive with the temporary adhesive recess. In without excess adhesive is filled, but there is no risk of or cause blisters in the surface layer material.

[Brief description of drawings]

FIG. 1 is an exploded sectional view illustrating an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which a permanent fixing adhesive is applied to the above base material.

FIG. 3 is a plan view of a substrate of another embodiment of the above.

FIG. 4 is a cross-sectional view illustrating application of a conventional regular fixing adhesive.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base material 2 Temporary-bonding concave part 3 Main-fixing adhesive 4 Temporary-fixing adhesive 5 Coating roll 6 Surface layer material 9 Adhesive escape concave part

[Procedure amendment]

[Submission date] September 24, 1991

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

Claims (1)

[Claims] 1. A base material is provided with a recess for temporary adhesion at a suitable position on the surface of the base material, and a recess for adhesive escape is formed adjacent to the recess for temporary adhesion so as to be adjacent in the longitudinal direction of the base material. When the main fixing adhesive is applied to the surface of the base material by the application roll by sending it in the longitudinal direction of the base material, the application roll passes through the adhesive escape recess before the application roll passes through the temporary adhesion recess, and the uncoated residue remains. A pool of the main fixing adhesive is placed in the adhesive escape recess, the temporary fixing adhesive of the instant adhesive is loaded into the temporary adhesion recess of the base material coated with the main fixing adhesive, and then the surface layer material on the base material. A method of temporarily fixing the surface layer material to the base material, characterized by stacking and temporarily fixing the surface layer material to the base material with a temporary adhesive.