JPH05169534A - Thermal transfer of flooring material - Google Patents

Abstract

PURPOSE:To eliminate a residual distortion remaining on the front surface of a flooring material and the rear surface, an opposite side of the material, and consequently, prevent the material from becoming deformed due to heating during thermal transfer process by thermally transferring a pattern to the surface of the flooring material continuously and pressing the rear surface of the material. CONSTITUTION:A board-like thermal plastic resin flooring material 1 which is extruded in an X arrow direction passing through a sizing device and a take-up device from an extrusion die of an extrusion machine, has a thermal transfer film 3 pressed by a heated thermal transfer roll 2. Consequently, a pattern is thermally transferred continuously to the surface of the flooring material 1. Following this process, the rear surface of the flooring material 1 is heated using a hot blast from a hot air blower 5, then the rear surface of the material l in a Y arrow direction is heated, and the material 1 is fed and cut in the Y arrow direction. The thermal transfer film 3 is fed in an X arrow direction by a film feed roll, and a mold lubricant paper 4 which is no longer necessary after thermal transfer is fed in any direction and then is wound around a take-up shaft.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for thermally transferring a pattern or the like onto the surface of a thermoplastic resin flooring material used for building materials, and more particularly to a method for thermally transferring a flooring material from which residual strain has been removed.

[0002]

2. Description of the Related Art A floor material made of a thermoplastic resin is continuously formed by extrusion molding, and the surface of the floor material is decorated by thermally transferring a decorative pattern or the like using a heat transfer film. There is. For example, as shown in FIG. 3, the thermoplastic resin floor material 1 extruded from the extrusion die 7 of the extruder 12
Is taken by the take-up machine 9 through the sizing device 8, the pattern etc. is thermally transferred to the surface by the printing machine 10, and then cut by the cutting machine 11. In the printing machine 10, as shown in FIG. 4, thermal transfer is performed by a heated thermal transfer roll 2 on the surface of a plate-shaped thermoplastic resin floor material 1 extruded in the X direction from an extruder through a sizing device and a take-up machine. The film 3 is pressed and the pattern or the like is continuously transferred onto the surface of the floor material 1 by heat. The heat-transferred floor material 1 is sent in the direction of the arrow Y and cut by a cutting machine. The thermal transfer film 3 is sent in the direction of the arrow x by a film feed roll (not shown), and the release paper 4 which is no longer needed after thermal transfer is sent in the direction y and wound on a take-up shaft (not shown).

[0003]

By the way, in the floor material 1, the heat transfer film 2 is pressed against the surface of the floor material by the heated heat transfer roll 2, and the pattern or the like is continuously heat-transferred onto the surface of the floor material 1. Therefore, only the surface of the floor material 1 is heated. Accordingly, the residual strain on the surface of the thermally transferred floor material 1 is partially removed, and the floor material 1 is cooled by the partial removal of the residual strain on the surface of the floor material 1 and is deformed when it is made into a product. It was For this reason, it is necessary to correct it by a mechanical method.

In view of the above points, an object of the present invention is to provide a heat transfer method for a floor material which prevents deformation of the floor material due to heat transfer.

[0005]

The heat transfer method for a flooring material of the present invention comprises: a surface of a thermoplastic resin floor material continuously extruded from an extruder, a heat transfer film being pressed by a heated heat transfer roll; It is characterized in that a pattern or the like is continuously transferred onto the surface of the floor material by heat, and then the back surface of the floor material is heated.

A floor material made of hard vinyl chloride resin or the like can be used as the floor material made of a thermoplastic resin. As a method for heating the floor material after the thermal transfer, a hot air blower, a heating roll, or the like is preferably used.

[0007]

Since the back surface of the floor material is heated after the thermal transfer, the residual strain remaining in the back surface of the floor material on the side opposite to the surface of the floor material heated during the thermal transfer is also removed. This prevents the floor material from being deformed due to heating at the time of thermal transfer.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will be given below with reference to the drawings. FIG. 1 is a side view of an embodiment of the thermal transfer method for flooring material of the present invention.

Reference numeral 5 is a hot air blower used for heat treatment of the floor material 1. The other equipment is the same as the conventional equipment. The thermal transfer method of the flooring material of the present invention is performed as follows.

A plate-shaped thermoplastic resin floor material 1 extruded in the direction of the arrow X through a sizing device and a take-up machine from an extrusion die of an extruder has a heat transfer film 2 on which a heat transfer film 3 is applied. Then, the pattern or the like is continuously transferred onto the surface of the floor material 1 by heat. Then, the back surface of the floor material 1 is heated by the hot air of the hot air blower 5, and then the floor material 1 is sent and cut in the direction of the Y arrow. The thermal transfer film 3 is sent in the direction of the arrow x by a film feed roll (not shown), and the release paper 4 that is no longer needed after the thermal transfer is sent in the y direction and wound on a take-up shaft (not shown). The position where the hot air blower 5 is blown with the hot air is preferably located rearward of the position where the thermal transfer is completed and the release paper 4 is peeled off so that the main body is not deformed.

FIG. 2 is a side view of another embodiment of the floor material thermal transfer method of the present invention. Reference numeral 6 is a heating roll used for heat treatment of the floor material 1. In this case, the rear surface of the floor material 1 is heated by the heating roll after transfer.

[0012]

Since the back surface of the floor material is heated after the heat transfer, residual strain remaining in the back surface of the floor material on the side opposite to the surface of the floor material heated during the heat transfer is also removed. As a result, it is possible to prevent the floor material from being deformed due to heating during the heat transfer, and it is not necessary to correct the floor material by a mechanical method while cooling the floor material.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a floor material thermal transfer method of the present invention.

FIG. 2 is a side view of another embodiment of the thermal transfer method for flooring material of the present invention.

FIG. 3 is a process diagram of a conventional thermal transfer method for flooring.

FIG. 4 is a side view of a conventional thermal transfer method for flooring.

[Explanation of symbols]

 1 Floor material 2 Thermal transfer roll 3 Thermal transfer film 4 Release paper 5 Hot air blower 6 Heating roll

Claims (1)

[Claims] 1. A heat transfer film is pressed by a heated heat transfer roll onto the surface of a thermoplastic resin floor material continuously extruded from an extruder to continuously transfer a pattern or the like onto the surface of the floor material, Then, the back surface of the floor material is heated, which is a thermal transfer method for the floor material.