JPS63293054A - Method for removing foreign matter in laminating or coating process - Google Patents

Abstract

PURPOSE:To make it possible to remove foreign matters to adhere onto the surface of a feeding base material or laminated film by a method wherein gum rolls are provided before a coater device or pressure rolls. CONSTITUTION:Gum rolls 6 and 6, which consist of self-adherent rubber rolls, are arranged in contact with each other in a pair before a coating roll 4 and a back-up roll 5. A laminated film (a), which is unwound from a device 1 is passed between gum rolls 6 and 6. During said passing of the film, foreign matters adhered to the surface of the film are removed by the gum rolls 6 and 6. The resultant film is sent to the coater device 2. At the coater device 2, coating is applied onto the inner side surface of the laminated film (a). After that, the resultant film is sent between a pressure roll 7 and a heating roll 8. Thus, laminating or coating treatment with no foreign matter contained can be done.

Description

Detailed Description of the Invention (Field of Industrial Application) This invention provides a method for removing foreign matter such as dust, hair, metal scraps, and small insects that adhere to the surface of a base material or laminate film during a lamination or coating process. Regarding.

(Prior art) In the laminating or coating process, if the surface of the base material or laminate film is passed through a coater device or pressure roll with foreign matter such as dust, hair, metal shavings, and small insects attached to it, the laminate will be damaged. Alternatively, the coating surface may not be processed to be smooth, or may not be processed properly, such as forming bubbles in some areas. Furthermore, if a wrapping paper for a food product is used that has been laminated or coated with these foreign substances still attached, it will cause food hygiene problems.

Conventionally, in order to remove these foreign substances that adhere to the surface of the base material or laminate film, it has been necessary to dispense a suction collection am near the lamination process or coating process, or to dispose a brushing roll during these processes. Methods such as measuring are used.

(Problem to be solved by the invention) However, the method of removing foreign substances using the suction force of a suction dust collector is not effective considering the expense required for maintaining the device, and the method of using a brushing roll is not effective. However, the effect of removing foreign substances was not found to be sufficient.

(Means for Solving the Problems) In view of the above-mentioned circumstances, the present invention provides an adhesive roll in front of the coater device or the pressure roll that is dispensed in the laminating or coating process, and the adhesive roll is provided in front of the coater device or the pressure roll that is fed into the coater device or the pressure roll. The present invention proposes a method for removing foreign matter in a laminating or coating process, in which foreign matter adhering to the surface of a base material or a laminate film is removed using the adhesive roll.

(Function) That is, in this invention, since the base material or the laminate film is passed through the adhesive roll provided before the coater device or the pressure roll, foreign matter adhering to the surface of the base material or the laminate film is removed from the coater device or the pressure roll. The adhesive roll ensures that the material is removed before passing through.

(Example) The present invention will be explained below based on illustrated embodiments.

In FIG. 1, 1 is an unwinding device for the laminate film a, 2 is a coater device consisting of a paint storage container 3, a coating roll 4 for applying the paint to the inner surface of the laminate film a, and a backup roll 5. It is. In front of the coater device 2, adhesive rolls 6.6 made of sticky rubber rolls are placed facing each other, and behind the coater device 2, a pressure roll 7 and a heating roll 8 are placed facing each other. be measured.

The laminate film a unwound from the device 1 is sent to the coater device 2 after passing between adhesive rolls 6.6 to remove foreign matter adhering to the surface thereof. In the coater device i2, a paint is applied to the inner surface of the laminate film a, and the film is fed between the pressure roll 7 and the heating roll 8.

On the other hand, the long base material is guided by a guide roll 9 and sent between a pressure roll 7 and a heating roll 8, where a laminate film a is adhered to the surface and laminated.

In addition, in the embodiment shown in FIG. 1, an example was described in which the adhesive rolls 6.6 were placed in contact with each other, but the adhesive rolls 6.6
Dispense in parallel as shown in the figure.

The laminate film a may be passed between the adhesive rolls 6.6 in a crossing manner. Further, the number of adhesive rolls is not limited to two as in the above embodiment, but may be one or more than two.

Further, in the embodiment shown in FIG. 1.2, an example was explained in which the adhesive roll is provided between the unwinding device 1 and the coater device 2, but the adhesive roll may be provided between the paper feeding device and the coater device. .

Furthermore, in the embodiment shown in FIG. 1.2, the adhesive roll is provided in front of the coater device 2, or as shown in FIG. You can also do it. In this case, the base material supplied from the paper feeder 10 is passed between the adhesive rolls 6 and 6 to remove any foreign matter adhering to the surface, and then fed between the pressure roll 7 and the heating roll 8. On the other hand, the laminate film a whose inner surface is coated with paint is guided to a guide roll 9 and fed between a pressure roll 7 and a heating roll 8, where it is laminated.

The embodiment shown in FIG. 4 is a modification of the one shown in FIG.
In this embodiment, an adhesive roll 6.6 may be placed in front of a pressure roll formed by suspending the endless belt 12 between two rolls 11.11.

In addition, in the above embodiment, lamination processing was described, but in the coating process of the base material, foreign matter adhering to the surface of the base material can be prevented by dispensing an adhesive roll before the coater device or pressure roll in the coating process. It can be removed reliably.

(Effect of the invention) Therefore, in this invention, garbage, hair, metal scraps,
It is possible to perform a laminating or coating process to prevent foreign matter such as small insects from entering.

Further, in this invention, since the adhesive roll is dispensed before the coater device or the pressure roll, installation does not take up much space and can be installed at low cost, and there is no trouble caused by installing the adhesive roll.

Furthermore, since the type or amount of foreign matter adhering to the surface of the adhesive roll can be visually observed, it is possible to quickly judge whether the base material or the laminate film is good or bad.

[Brief explanation of the drawing]

Fig. 1 is a lamination process diagram showing an embodiment of the present invention in which an adhesive roll is placed in front of the coater device, Fig. 2 is a lamination process diagram showing a modification of Fig. 1, and Fig. 3 is a pressure roll. FIG. 4 is a lamination process diagram showing a modification of FIG. In the figure, 2 is a coater device, 6.6 is an adhesive roll, and 7 is a pressure roll.

Claims (1)

[Claims] An adhesive roll is installed in front of the coater device or pressure roll that is dispensed in the lamination or coating process, and the adhesive roll removes foreign matter that adheres to the surface of the base material or laminate film that is fed into the coater device or pressure roll. A method for removing foreign matter in a laminating or coating process, characterized in that: