JPH1157573A - Production of externally coated merchandise and application for production of externally coated merchandise - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a hot melt adhesive agent and to solve problems, such as damage and elongation, of a surface material. SOLUTION: A coating head 10 which is longitudinally arrayed and arranged with many coating nozzle holes for supplying the hot melt adhesive agent apart spaced intervals above the surface to be coated with the adhesive of the surface material (b) in a direction intersecting with the transfer direction of the surface material (b) and is formed with pressurized air holes adjacently to the many coating nozzles is arranged to face the surface to be coated with the adhesive of the surface material (b) apart the spacing above the surface to be coated with the adhesive of the surface material (b). A hot melt adhesive agent beat in a heated and molten state is discharge in the longitudinally arrayed state in the direction intersecting with the transfer direction of the surface material (b) onto the surface to be coated with the adhesive of the surface material (b) and the pressurized air flow is ejected adjacently to this hot melt adhesive agent bead to form the nonwoven fabric-like fibers of the hot melt adhesive agent, by which the hot melt adhesive agent is applied in the state of the nonwoven fabric-like fibers on the surface to be coated with the adhesive of the surface material (b).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a processed material (substrate)
The present invention relates to an exterior-coated product having a high product value by changing a product appearance by bonding a surface material (exterior material) to a surface of the product, and a manufacturing technique thereof. As the outer covering product, for example, a particle board, molded wood, an aluminum molded material, a plastic molded product, or the like is used as a processing material (base material), and a surface material (exterior material), for example, paper on which a wood pattern is printed on the surface of the processed material.・ New building materials, furniture materials, etc. with the wood grain of the printed design as the surface by bonding an exterior sheet such as a synthetic resin film.
There are interior accessories.

[0002]

2. Description of the Related Art Referring to FIG. 10, a processing material (base material) a is supplied from a processing material supply section 2A of an exterior line to a surface material supply section 4A with reference to FIG. The surface material (exterior material) b is supplied to the surface material supply unit 4A by the surface material supply unit 3A, and the surface material (exterior material) b is applied to the surface of the processing material (base material) a during the transfer of the surface material supply unit 4A. Supply. At the surface material winding portion (not shown) at the end of the exterior line, the surface material is pressed against and adhered to the material while the surface material b is wound around the material a to integrate the surface material with the surface material. Finished exterior sheet covering material. In the middle of the step of supplying the surface material b to the processing material a (that is, a part of the surface material supply device 3A), an adhesive is applied to the surface material by an adhesive application device. As the adhesive application device, there is a coater type application device 1A such as a knife coater type or a roll coater type. The coater-type coating apparatus 1A is of a type in which a coating head comes into contact with a surface to be coated, and uses a solvent-based adhesive as a coating agent.

[0003]

With respect to the use of solvent-based adhesives, recently, the destruction of health in newly-built houses, for example, the occurrence of chemical sensitivity due to newly-constructed materials has become a problem. It has been an issue to stop using a solvent-based adhesive. In order to solve the above problems, when a hot melt adhesive is used as an adhesive instead of a solvent-based adhesive, the adhesive is applied in a state where tension (tension) is applied to a surface material (exterior material). However, there is a problem that the surface material is damaged, stretched, and the like by heating with the hot melt adhesive supplied in a heated and melted state. Therefore, an object of the present invention is to use a hot-melt adhesive and solve problems such as damage and elongation of a surface material (exterior material).

[0004]

According to a first aspect of the present invention, in applying an adhesive to a surface material being supplied to a work material being transferred on an exterior line, the adhesive is applied to the surface material being supplied to the exterior line. A hot-melt adhesive beat in a hot-melt state is discharged in a row in a direction intersecting (including the orthogonal direction) with the surface material transfer direction from above with a gap above the surface to be coated with the agent, and the hot-melt bonding is performed. A non-woven fiber of hommelt adhesive is formed by jetting a pressurized air stream adjacent to the agent beat, and the hot-melt adhesive is applied to the surface of the surface material to which the adhesive is to be applied in the form of non-woven fiber.
The second invention of the present application is to provide an exterior coating product by supplying a surface material coated with an adhesive to a processing material being transferred on an exterior line, and exteriorizing the processing material with the surface material on the exterior line. In the product manufacturing equipment, a number of coating nozzle holes for supplying hot melt adhesive at intervals above the surface of the surface material being supplied toward the exterior line, which is to be coated with the adhesive, are formed in a direction intersecting (orthogonal to) the transport direction of the surface material. The coating head, which is arranged in tandem with a plurality of coating nozzle holes and has pressurized air holes formed adjacent to the plurality of coating nozzle holes, is spaced above the adhesive-coated surface of the surface material being supplied toward the exterior line. And an adhesive applying device is disposed so as to face the surface of the surface material to which the adhesive is to be applied.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The first invention of the present application uses a hot-melt adhesive as an adhesive applied to a surface material, and uses a hot-melt adhesive as an adhesive applied to an exterior line from above the surface of the surface material to which the adhesive is applied. A hot-melt adhesive beat in a heated and melted state is discharged in a tandem state in a direction intersecting with the transport direction, and a pressurized air flow is jetted adjacent to the hot-melt adhesive beat. By applying a pressurized air flow to the hot melt adhesive beats in a heated and melted state in tandem, non-woven fibers of the hommelt adhesive are formed. A hot-melt adhesive is applied to the surface of the surface material to which the adhesive is to be applied, in the form of non-woven fibers (thin sheets made of fibers). The second invention of the present application relates to an exterior coating product manufacturing apparatus,
A coating head is disposed above the adhesive-coated surface of the exterior sheet being supplied to the exterior line at an interval, and an adhesive application device that uses the adhesive as a hot melt adhesive is provided. In the coating head, a number of coating nozzle holes are arranged in tandem in a direction intersecting with the transport direction of the exterior sheet, and pressurized air holes are formed adjacent to the plurality of coating nozzle holes.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings. In the embodiment, as an exterior covering product, an exterior molding wood obtained by coating a processed material (molded wood) a with a surface material (exterior sheet) b of woodgrain decorative printing is applied, but a particle board, molded wood, and aluminum molding material are used. , Plastic moldings, etc. as processing materials, exterior materials (paper, synthetic resin film, etc.) printed with surface materials (designs (eg, wood grain patterns)) on the surface of the processing materials, and veneer (thin cypress) The present invention can be widely applied to exterior building products such as new building materials, furniture materials, and interior decorations having a wood grain, an appropriate printed design or the like as a surface by bonding the materials.

FIG. 1 shows an outline of an exterior molding wood exterior line, in which a processing material (molded wood) a supply unit 2 and a surface material b
And a surface material winding section 5 for winding a surface material b around a processed material (molded wood) a. The supply part 2 of the processing material (molded wood) a includes a receiving roller 21 and a pressing roller 22.
Between the receiving rollers 2 by moving the workpiece a.
By the rotation drive of 1, the workpiece a is moved in the direction of the arrow,
The processing material a is configured to be fed to the supply unit 4 for the surface material b.

[0008] The supply unit 4 of the surface material b, the surface material b supplied by the surface material supply unit 3, the upper surface of the processing material (molded wood) a supplied from the supply unit 2 of the processing material (molded wood) a To supply. The surface material winding section 5 changes the direction of the press roller 22 so that the surface material b
Is wound, and the entire peripheral surface of the processed material (molded wood) a is coated with the surface material b, but the specific structure is omitted because of the known technique.

The surface material supply device 3 includes a sheet roll 31,
A tension roller 32 and a pressing roller 33 are provided, and an adhesive application section e is formed between the pair of tension rollers 32.

Referring to FIGS. 2 and 3, an adhesive applying apparatus 1 for supplying an adhesive to an adhesive applying section e and applying the adhesive to the surface material b will be described. Adhesive coating device 1
Uses a hommelt adhesive as an adhesive, and arranges application nozzle holes 11A, which are spaced apart above the surface material and open in a direction perpendicular to the direction of transport of the surface material, in tandem in the width direction of the surface material, and are tandemly coated. A coating head 10 having a group of nozzle holes 11 and pressurized air holes 12 formed before and after the group of nozzles 11 is provided.
With a distance L between the surface material b (coating agent application part e)
Equipped above.

The above-mentioned group of tandem application nozzle holes 11 is not limited to a straight line in a plan view, but may be arranged in two rows in a staggered pattern as shown in FIG. 4A or in a three-row pattern as shown in FIG. 4B. Good thing. Further, the pressurized air holes 12 are provided on both the front side and the rear side (FIG. 5A), the front side (FIG. 5 b), and the rear side (FIG. 5c), if both the front and the rear (FIG. 5a), pressurized air is supplied to both the front side and the rear side of the molten hot melt beat flowing down from the series of application nozzle holes 11. Acts to form a sandwich and surface material b
In this way, it is possible to prevent the hot melt adhesive from scattering and to increase the effective utilization rate of the hot melt adhesive.

In the embodiment shown in FIG. 4, the adhesive coating device 1 has its coating head 10 arranged in a direction perpendicular to the direction of transport of the surface material b, but may be arranged in a crossing direction as shown in FIG. The object of the present invention can be achieved. Further, as shown in FIG. 6, when the arrangement angle of the coating head 10 is arbitrarily set, the effective coating width W
Is convenient. For example, referring to FIG.
The coating width is freely changeable to W1, W2 or any other value by making the coating head 10 rotatable about the support shaft 13 in the horizontal direction.

Next, according to the present invention, an adhesive coating device is applied to the surface of the surface material b supplied by the surface material supply device 3 toward the pressing roller 34 of the surface material supply section 4 (the inner surface side of the surface material). The adhesive application device 1 supplies the hot melt adhesive to the group of application nozzle holes 11 of the coating head 10 and heats the adhesive from the lower end opening of the group of application nozzle holes 11. The hot melt adhesive beat in a molten state is discharged in a cascade in a direction intersecting with the transport direction of the surface material b, and pressurized air is supplied to the pressurized air hole 12 so that pressurized air is supplied from the lower end opening of the pressurized air hole 12. Is discharged.

Referring to FIGS. 8 and 9, a curtain-like pressurized air flow k from pressurized air holes 12 acts on hot melt adhesive beats h in a tandem state, whereby hot melt adhesive A non-woven fiber f is formed. The nonwoven fabric fiber f of the hot melt adhesive is dropped and applied to the surface of the surface material b to which the adhesive is applied (the inner surface side of the surface material), so that the surface of the surface material b to which the adhesive is applied (the inner surface of the surface material b) )
Then, a non-woven fiber sheet F of a hot melt adhesive is formed. The hot melt adhesive is applied in the form of a thin sheet of the nonwoven fabric fiber sheet F, so that an uneven adhesive layer is not formed, and no irregularities are generated on the surface of the exterior coated product.

The heater 34, the hot air feeders 35, 3
6, the surface of the surface material b to which the adhesive is applied (the inner surface of the surface material) and the surface of the processing material a are heated to melt the adhesive applied to the surface of the adhesive material to which the adhesive is applied (the inner surface of the surface material). While maintaining the state, the work material a and the surface material b are heated to an appropriate temperature,
Ensuring the adhesive action of the hot melt adhesive.

[0016]

According to the present invention, a hot-melt adhesive is used as an adhesive, and a plurality of coating nozzle holes arranged in a row in a direction intersecting with the direction of transport of the surface material are used to form a hot-melt hot-melt in a row. By discharging the adhesive beat and applying a pressurized air flow adjacent to the hot melt adhesive beat, a non-woven fiber of the hot melt adhesive is formed, and the hot melt adhesive surface of the surface material is hot-coated. Since the surface of the surface material to which the adhesive is applied is formed by attaching the nonwoven fabric fiber of the melt adhesive, the problem of the occurrence of chemical sensitivity due to new building materials and the like due to the use of solvent-based adhesives is to be solved. Can be. Further, since the adhesive-coated surface of the non-woven fiber is formed, an uneven adhesive layer such as a spiral layer of a spiral spray of a hot-melt adhesive is not formed, and the surface of the exterior coated product is not formed. There is no unevenness, and it has the effect of increasing the product value of the outer covering product.

[Brief description of the drawings]

FIG. 1 is a front view showing an outline of an apparatus for manufacturing an exterior-coated product according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of an adhesive application device.

FIG. 3 is also a bottom view

FIG. 4 is an explanatory view showing another embodiment of a group of tandem application nozzle holes.

FIG. 5 is an explanatory view showing various embodiments of a tandem application nozzle hole group and a pressurized air hole.

FIG. 6 is a plan view showing an adhesive application device arranged in a direction intersecting with a transport direction of the surface material.

FIG. 7 is a plan view showing an adhesive application device capable of changing an application width.

FIG. 8 is an explanatory view showing the formation of a nonwoven fabric fiber of a hommelt adhesive.

FIG. 9 is an explanatory view of a nonwoven fabric fiber sheet of a hot melt adhesive, showing a state of application of a surface material b to an adhesive-applied surface (an inner surface side of the surface material).

FIG. 10 is a front view showing an outline of a known apparatus for manufacturing an exterior-coated product.

[Explanation of symbols]

Reference Signs List 1 adhesive application device 10 application head 11A application nozzle hole 11 tandem application nozzle hole group 12 pressurized air hole a processing material b surface material f nonwoven fabric fiber of hot melt adhesive F nonwoven fabric fiber sheet of hot melt adhesive h hot Melt adhesive beat k Pressurized air flow

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI B05D 7/24 301 B05D 7/24 301P B32B 31/00 B32B 31/00

Claims (2)

[Claims] 1. A work material is supplied by supplying a surface material to a work material being transferred through an exterior line and pressing the surface material against the work material while winding the work material at the end of the production line. In the method of manufacturing an exterior covering product that integrates a surface material with a surface material, the adhesive is applied to the surface material that is supplied to the workpiece while the exterior line is being transported. While using a melt adhesive, a hot melt in a heated and molten state is arranged in a row in the direction intersecting with the direction of transfer of the surface material from above with an interval above the surface to which the adhesive is applied to the surface material being supplied to the exterior line. The hot melt adhesive beat is discharged, and a pressurized air flow is blown out adjacent to the hot melt adhesive beat. A method for producing an exterior-coated product, comprising forming a nonwoven fabric fiber of a non-woven adhesive, and applying a hot melt adhesive in a state of a nonwoven sheet to a surface of the surface material to which the adhesive is applied. 2. An exterior-coated product, comprising: supplying a surface material coated with an adhesive to a processed material being transferred through an exterior line; and covering the processed material with the surface material on the exterior line to complete an exterior-coated product. In the manufacturing equipment, a large number of application nozzle holes for supplying hot melt adhesive at intervals above the surface of the surface material being supplied toward the exterior line, which are to be coated with the adhesive, are arranged in tandem in the direction intersecting the transport direction of the surface material. A coating head having a pressurized air hole formed adjacent to a large number of the coating nozzle holes is spaced above the surface of the surface material being supplied toward the exterior line and to which the adhesive is to be applied. An adhesive dispenser is constructed by disposing the adhesive dispenser opposite to the surface to which the adhesive is to be applied, and pressurized air is applied to the hot melt adhesive beats in a cascade to form non-woven fibers of the hot melt adhesive. Melt contact Characterized by applying a nonwoven fiber sheet to the adhesive coated surface of the surface material,
Equipment for manufacturing exterior coated products.