KR20050095330A - Support for film winding and manufacturing method wound-film using it - Google Patents

Abstract

The present invention provides a film winding support having a structure in which a buffer pad is laminated on the outer layer of the support with a uniform thickness. In the case of using the film winding support in which the buffer pad is laminated on the outer layer, the film is wound around the support. The defect due to the irregularities of the support is reduced, so that the support adjacent film can be used, thereby improving productivity.

Description

Support for film winding and manufacturing method of wound film using same {support for film winding and manufacturing method wound-film using it}

The present invention relates to a film winding support and a method of manufacturing a wound film using the same, and more particularly, to support a film winding support to reduce the defect of the film due to the irregularities of the support by laminating a buffer pad on the outer layer of the support And it relates to a method of winding the film using the same.

Products produced in a film state are usually wrapped after winding using a support for ease of packaging and transport.

The state diagram in which the film is wound on the support is as shown in FIG. 2.

In the case of a film wound using a conventional support, there is a problem that a trace remains on the appearance of the final product due to the transfer due to the irregularities of the support or the irregularities of the adhesive tape generally used at the initial stage of the film winding. Accordingly, the film product wound adjacent to the support has a non-uniform appearance different from the film product wound on the outer layer away from the support due to the afterimage of the support.

That is, when the film folds due to unevenness or the film product is unwound from the support, it may be unwound with uneven tension, which may cause other defects.

Accordingly, the inventors of the present invention, while looking for a method for preventing the appearance damage of the film wound due to the unevenness of the film winding support, the introduction of a buffer pad to the surface of the film winding support, as a result It has been found that the factors can be reduced to complete the present invention.

Accordingly, an object of the present invention is to provide a film winding support that can reduce the defect of a wound film by introducing a buffer pad to the surface of the film winding support.

The film winding support of the present invention for achieving the above object is characterized in that the buffer pad is laminated with a uniform thickness on the outer layer of the support.

Referring to the present invention in more detail as follows.

A state diagram in which a film is wound using the film winding support according to the present invention is shown in FIG. 1, whereby the buffer pad 3 is positioned between the support 1 and the film 2.

The film winding support of the present invention is a laminate of a buffer pad on an outer layer of a conventional film winding support, and the buffer pad may be defined as having elasticity by foaming.

Examples of usable materials include foam pads of ethylene vinyl acetate and polyethylene, which have elasticity, synthetic pads of nylon and rubber, or polyurethane-based pads. Specifically, the compression recovery rate, which is an index of elasticity, is 30% to It is preferable that it is a foam pad of about 90%.

The buffer pad should have a uniform thickness, because when the thickness is not uniform, the connection portion of the buffer pad acts as an unevenness again. The thickness of the buffer pad is not limited, but is preferably 0.1 mm to 2 mm.

The method of stacking the buffer pad on the support is not limited, but the buffer pad may be fixed by attaching a double-sided tape to the buffer pad and attaching the buffer pad to the support outer layer.

As described above, a method of winding a film using a buffer pad may be performed by first attaching a double-sided adhesive tape to an outer layer of a buffer pad and then fixing the film thereon to start winding as in a conventional method.

Since the double-sided adhesive tape used at the beginning of the winding is used as it is, unevenness of the double-sided adhesive tape itself is present, but defects caused by the support can be reduced, specifically, defects generated at the support and the joint can be reduced. Thereby, since the film wound adjacent to the support body for film winding can also be used, it can contribute to productivity improvement.

Hereinafter, the present invention will be described based on the following examples, but the present invention is not limited thereto.

Example 1

When the final film product is finished or after finishing processing, the double-sided adhesive tape is coated with a 50% compression recovery pad made by foam-processing ethylene vinyl acetate on uneven film winding support (inner diameter 152mm, outer diameter 182mm). It was attached to the outer layer in the longitudinal direction of the support to fix the buffer pad.

A double-sided adhesive tape was affixed on the surface of the buffer pad on the support to wind Kolon's 125 µm PET film, FC00, to 1140 m length.

Example 2

When the final film product is finished or after finishing processing, the double-sided adhesive tape is coated with a 50% compression recovery pad made by foam-processing ethylene vinyl acetate on uneven film winding support (inner diameter 152mm, outer diameter 182mm). It was attached to the outer layer in the longitudinal direction of the support to fix the buffer pad.

A double-sided adhesive tape was attached on the surface of the buffer pad on the support to wind a 100 μm PET film, T600E100, manufactured by Mitsubishi Corporation, at a length of 1250 m.

Comparative Example 1

When the final film product is finished or after finishing processing, the double-sided adhesive tape is attached to the film winding support (inner diameter 152nn, outer diameter 182mm) of uneven paper when the product is wound, and Kolon's 125㎛ PET film and FC00 are 1140m in length. Wound up.

Comparative Example 2

When the final film product is finished or after finishing processing, the double-sided adhesive tape is attached to the film winding support (inner diameter 152nn, outer diameter 182mm) of uneven paper when the product is wound, and Mitsubishi's 100㎛ PET film, T600E100, is 1250m in length. Wound up.

The film wound according to Examples 1 to 2 and Comparative Examples 1 to 2 was unrolled to measure the length of the film on which the adhesive tape was transferred and the length of the film on which the unevenness of the support was transferred. The results are shown in Table 1 below. .

Example 1 Example 2 Comparative Example 1 Comparative Example 2 Adhesive Tape Transfer Length Inner layer 5m Inner layer 5m Inner Floor 35m Inner floor 55m Uneven transfer length on the support No transcription No transcription Inner layer 20m 31m inside

From the results of Table 1, it can be seen that in the case of Examples 1 to 2 compared to Comparative Examples 1 to 2, although the transfer due to the adhesive tape is present, the transfer amount is small and there is no uneven transfer of the support.

As described in detail above, in the case of using the film winding support in which the buffer pad is laminated on the outer layer according to the present invention, defects due to the irregularities of the support are reduced to the film wound on the support adjacent part, so that the support adjacent film can also be used. Productivity can also be improved.

1 is a state diagram of a roll of the film wound using a support for film winding according to the present invention,

2 is a state diagram of a roll on which a film is wound using a conventional support for film winding.

<Description of Drawing Major Symbols>

1-Film 2-Support

3-shock absorber pad

Claims (3)

A film winding support having a structure in which a buffer pad is laminated in a uniform thickness on an outer layer of the support. The film winding support according to claim 1, wherein the buffer pad is selected from foams of ethylene vinyl acetate or polyethylene, synthetic pads of nylon and rubber, and polyurethane pads. Fixing the buffer pad to the support by attaching the buffer pad to the outer layer in the longitudinal direction of the support using a double-sided adhesive tape and an adhesive material; And A method of manufacturing a wound film using a film winding support comprising the step of winding a film using a double-sided adhesive tape and an adhesive material on the surface of the complete layer pad.