JPH0857966A - Laminating method for base material to surface material - Google Patents

Abstract

PURPOSE: To provide a method for laminating a sheet which can obtain a laminate having excellent commodity value without generating wrinkle at the surface material laminated on a base material surface. CONSTITUTION: The upper surface of a zinc-plated iron plate is coated with rubber adhesive 11, heated to 60 deg.C by a heater 7, and a base material 1 in which the adhesive is melted is conveyed toward press bonding rolls 3. On the other hand, a surface material 2 made of polyethylene foamed sheet having a thickness of 4mm is supplied obliquely upward from above the material 1 toward the rolls 3. When the ends 12 of the material 1 are approached to the cut part 6, the material 2 is cut by a cutting blade 6. A suction roll 4 and a suction plate 5 are reduced to 2000mmAq by a pressure reducing pump. When the material 2 is cut, the material 2 between the roll 3 and the blade 6 is sucked to the roll 4 and the plate 5, and fed to the rolls 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for laminating a surface material on the surface of a base material.

[0002]

2. Description of the Related Art Laminates obtained by laminating a relatively low-rigidity surface material such as a synthetic resin film, a foamed sheet, or paper to a base material made of a relatively high-rigidity sheet or plate are used for various purposes. Has been. In such a laminate, an adhesive or pressure-sensitive adhesive is applied to one surface of a base material, and the surface material is pressure-bonded to the applied surface with a pressure roll of a laminator. Alternatively, the adhesive is not applied to the base material, but the base material is heated and the surface material is heat-sealed, and the surface material is pressure-bonded by a pressure-bonding roll to be bonded.

In order to use the above-mentioned laminated body as a building material, for example, the base material is cut into a certain length according to a building standard, and is adhered to another material or other processing, and thus the base material is cut at an end portion in the longitudinal direction of the base material. Only the surface material may not be attached. In order to manufacture such a laminate, the base material is cut in advance to a predetermined length and the adhesive is applied, or the adhesive is not applied, and the surface material is bonded in order from one end of the heated base material. , Cut the surface material shorter than the length of the base material and attach it to the end of the surface material.

[0004]

FIG. 4 is a perspective view showing a bonded state by the above conventional method. When the surface material 2 is cut, its end portion becomes a free end free from tension, and nothing supports the end portion. The terminal portion falls on the surface of the adhesive 11 applied to the base material 1 or the surface of the heated base material 1 and comes out of a predetermined position to be bonded by the adhesive or heat fusion. After passing through the pressure-bonding rolls 3 and 3, the surface material 2 is stuck in a wrinkle-like state, or air is entrained and the appearance is bad and the product value is very bad.

The present invention solves the above-mentioned problems of the prior art, and a method for laminating a sheet body capable of obtaining a laminate having excellent commercial value without causing wrinkles on the surface material laminated on the substrate surface. The purpose is to provide.

[0006]

[Means for Solving the Problems] A method for laminating a base material and a surface material of the present invention is such that, when the surface material is pressure-bonded to the surface of the base material by a pressure roll, the base material is supplied to a pressure roll, , Supply the surface material from above the base material to the pressure roll,
The surface material is cut by the cutting section arranged above the base material, and the suction member arranged on the upper side of the surface material between the cutting section and the crimp roll crimps while holding the cut surface material end portion by suction. It is characterized in that it is conveyed to a roll and bonded.

The base material used in the present invention is a building material or the like that has strength depending on the application and serves as a support for a surface material, such as an iron plate, a zinc steel plate, an acrylic color steel plate, a vinyl chloride coated steel plate, and a galvanium. Steel plates, metal plates such as fluorocarbon resin coated steel plates, wood, materials with high rigidity such as inorganic plates,
In addition, paper, plate-shaped, sheet-shaped, film-shaped synthetic resin and the like having relatively high rigidity can be used.

When the adhesive is applied to the surface of the base material, the adhesive is generally used in the production of a laminate, and includes a pressure-sensitive adhesive and a heat-fusion adhesive. In the case of a heat fusion type adhesive, it is heated and melted, and the surface material is attached in a heat activated state.
The heating temperature in this case is usually 40 to 200 ° C.

The surface material is used for decoration, heat insulation, soundproofing and other purposes, and is made of paper, woven or non-woven fabric, synthetic resin sheet, film, foam or the like, and is usually thin and rigid. It is relatively or fairly low.

The suction member sucks the surface material from above by depressurization and prevents the surface material from dropping on the adhesive surface of the base material, and is arranged between the cut portion of the surface material and the pressure-bonding roll. . As the suction body, for example, a suction roll 4 as shown in FIG. 2 may be used. The suction roll 4 includes an inner cylinder 41 in which oblong holes are provided in a zigzag shape on a peripheral wall of a cylindrical body, and an outer cylinder 43 circumscribing the inner cylinder 41 and rotatable with respect to the inner cylinder 41. And a large number of suction holes 44 are provided on the wall surface of the outer cylinder 43. When the pressure inside the inner cylinder 41 is reduced, air is sucked from the suction holes 44 of the outer cylinder 43 through the long holes 42 of the inner cylinder 41. The surface material is sucked and held by force.

As another form of the suction body, as shown in FIG. 3, a large number of suction holes 52 are provided on one wall surface of a thin box body, and air is sucked by depressurizing the inside of the box body, and a surface material is formed. The suction plate 5 for sucking and holding the may be used.

The suction force of the suction body is 10 in the inner cylinder.
It is obtained by reducing the pressure to about 3000 mmAq.

Since the suction roll 4 can rotate along the outer periphery of the inner cylinder 41 while the surface material is sucked onto the surface of the outer cylinder 43, it can be conveyed without applying tension to the surface material. Therefore, although it can be used as a surface material made of a material that is difficult to stretch, it is effective because it can be fed to a surface material made of a material that is particularly stretchable without applying tension. When the suction plate 5 is used, the surface material is conveyed to the position immediately before the pressure-bonding roll while sliding on the surface of the suction plate 5 which is suction-held by the suction holes. Therefore, it can be used as a surface material made of a material having low elongation and high tensile strength.

When the suction roll and the suction plate are used in combination, a remarkable effect is often obtained. That is, if a suction roll is placed close to the cutting part, and then a suction plate with a length reaching the vicinity of the pressure roll is placed, the end portion of the cut surface material is not loosened or conveyed to the pressure roll without sagging. To be done.

[0015]

[Function] The end portion of the surface material is adsorbed and held by the suction body,
It is conveyed to the pressure roll without falling onto the base material surface. As a result, the end portion of the surface material is attached to the base material without causing wrinkles or entraining air. When a suction roll is used as the suction member, the surface material is conveyed without being subjected to tension, so that even a surface material that is easily stretchable can be bonded without stretching. Further, when a suction plate is used as the suction body, it is possible to convey the surface material in a state in which it is adsorbed until immediately before the pressure bonding roll. Further, when the suction roll and the suction plate are used in combination, the end portion of the surface material is not loosened or drooped, and is reliably conveyed to the pressure roll.

[0016]

EXAMPLES Next, examples of a method for laminating a base material and a surface material of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a method for laminating a base material and a surface material of the present invention, a side view when a suction roll and a suction plate are used together as a suction body, FIG. 2 is a perspective view of the suction roll, and FIG. 3 is suction. It is a perspective view of a plate. First, the structure of the suction roll and the suction plate will be described. As shown in FIG. 2, the suction roll 4 has an inner cylinder 41.
The inner cylinder 41 is provided with a plurality of elongated holes 42 (length 100 mm, width 10 mm) on a peripheral wall thereof in a range of about 25 ° from the axis of a cylindrical body having an outer diameter of 60 mm. At the end of the hose 4 connected to a decompression pump (not shown)
5 is connected and the other end is closed. Outer cylinder 43
Is rotatably fitted into the inner cylinder 41 via a needle roller bearing, and a large number of suction holes 44 with a diameter of 2 mm are 50 m on the peripheral wall.
It is provided at m intervals.

When the air in the inner cylinder 41 is sucked and depressurized by the decompression pump, the outside air is sucked through the suction hole 44 of the outer cylinder 43 and the long hole 42 of the inner cylinder 41. When the surface material is supplied to the surface of the outer cylinder 43, the surface material is adsorbed by the suction holes 44 of the outer cylinder 43, and when the surface material moves to one side, the outer cylinder 4 is moved accordingly.
The surface material is conveyed while the 3 rotates.

Next, the suction plate 5 is of a thin box type as shown in FIG. 3, and has a large number of suction holes 5 formed in the outer cylinder 43 of the suction roll 4 on one wall surface of the main body 51.
2 is provided, and a hose 53 communicating with the decompression pump is provided on a part of the side wall. Reference numeral 54 is a metal fitting for attachment.

Next, the suction roll 4 and the suction plate 5
An example of the method of the present invention in which In FIG. 1, a rubber-based adhesive 11 is applied to the upper surface of a zinc-plated iron plate having a thickness of 0.6 mm, and the base material 1 is heated at 60 ° C. by a heating device 7 to melt the adhesive.
Transport at the speed of a minute. On the other hand, the surface material 2 made of a polyethylene foam sheet having a thickness of 4 mm is supplied from above the base material 1 to the pressure bonding rolls 3 and 3 via the guide rolls 8 and 8 from an obliquely upper direction, and the terminal portion 12 of the base material 1 is When approaching the cutting portion 6, the surface material 2 is cut by the cutting blade 6.

The suction roll 4 and the suction plate 5 are decompressed to 2000 mmAq by a decompression pump (not shown). At the same time when the surface material 2 is cut, the surface material 2 between the pressure bonding roll 3 and the cutting blade 6 is attracted to the suction roll 4 and the suction plate 5. The surface material moves while being pressed by the pressure bonding rolls 3 and 3, and the end portion of the surface material 2 is the outer cylinder 4 of the suction roll 5.
3 is rotated, and the surface of the suction plate 5 on which the suction holes 52 are provided is slid and fed to the pressure rolls 3, 3.

The surface material 2 that has been cut and left behind is subsequently sent out and droops down, and it is bonded by touching the adhesive surface of the tip of the base material to be supplied next, and sent to the pressure rolls 3, 3. After that, the base material is laminated in the same manner as described above without causing wrinkles.

In this way, the end portion of the surface material is conveyed without touching the surface of the pressure-sensitive adhesive layer until it is pressure-bonded and laminated by the pressure-bonding roll, without causing wrinkles or entrapment of air between the pressure-sensitive adhesive layer. I was able to attach it.

[0023]

EFFECTS OF THE INVENTION Since the method for laminating a sheet of the present invention has the above constitution, it is possible to obtain a laminate having excellent commercial value without causing wrinkles on the surface material laminated on the surface of the base material. .

[0024]

[Brief description of drawings]

FIG. 1 is an explanatory view for explaining an embodiment of a method for laminating a base material and a surface material of the present invention.

FIG. 2 is a perspective view showing an example of a suction roll.

FIG. 3 is a perspective view of an example of a suction plate moistened.

FIG. 4 is a perspective view showing a conventional bonding state.

[0001]

[Explanation of symbols]

 1: Base material 2: Surface material 3: Crimping roll 4: Suction roll 5: Suction plate 6: Cutting part 7: Heating device 11: Adhesive 12: Terminal part of base material 41: Inner cylinder 42: Long hole 43: Outside Cylinders 44 and 52: Suction holes 45 and 53: Hose

Claims (1)

[Claims] 1. When the surface material is pressure-bonded to the surface of the base material by a pressure-bonding roll to be bonded, the base material is supplied to the pressure-bonding roll,
On the other hand, the surface material is supplied from above the base material to the pressure bonding roll, the surface material is cut by the cutting portion arranged above the base material, and the suction member arranged above the surface material between the cutting portion and the pressure bonding roll. According to the above, the method for laminating a base material and a surface material is characterized in that the cut end of the surface material is suction-held while being conveyed to a pressure bonding roll and bonded.