JP2017020609A - Liquid-draining roll and roll-to-roll wet treatment conveyance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent poor conveyance from occurring on a film, breakage and wrinkles from occurring, and damage from occurring, in a roll-to-roll wet treatment conveyance device that unwinds the film from a roll, performs wet treatment with the film immersed into liquid, and winds the film around the roll again.SOLUTION: A liquid-draining roll is characterized in that around a roll shaft 1, a material 2 having low hardness and high water absorption property, and a material 3 having low water absorption property and high hardness are arranged alternately in a rotation direction without any irregularity.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a liquid draining roll and a roll-to-roll wet processing conveyance device.

  In general, a roll-to-roll wet processing conveyance device is known in which a film is unwound from a roll, dipped in a liquid to perform a wet process, and wound again on a roll.

  As shown in FIG. 5, such a roll-to-roll wet processing conveyance apparatus includes a driving unit 10, a wet processing unit 20, and a driving unit 30, and the driving unit 10 includes a dancer roll 11, a driving roll 12, and a free unit. The wet processing unit 20 contains a liquid 24 and includes a free roll 21, a free roll 22, and a free roll 25. The drive unit 30 includes a dancer roll 31 and a drive roll 32. While the tension of the film 5 is kept constant with the dancer roll 31, the film 5 is driven in the transport direction D by the driving roll 12 and the driving roll 32, and the film 5 is liquidated by the free roll 13, the free roll 21, and the free roll 22. 24, and the film 5 is lifted from the liquid 24 by a free roll 25.

  The free roll does not have a drive device that the drive roll has, and the roll is rotated by the frictional force between the film and the roll. For this reason, slippage is likely to occur between the film and the roll, and as a result, there is an increased possibility of a conveyance failure such as meandering or loosening of the film. In particular, since the liquid is interposed between the film and the roll in the free roll 25 of the wet processing unit 20, it is predicted that the frictional force between the film and the roll becomes small and slipping easily occurs.

  As a method for solving the decrease in the frictional force between the film and the roll due to the presence of liquid, there is a method using a liquid draining roll as a free roll.

  As a liquid draining roll, for example, a draining sponge roll in which a sponge roll is provided on the outer periphery of a rotating shaft is known (see, for example, Patent Document 1). When this draining sponge roll is used as the free roll 25, there is a problem that the sponge roll is crushed by the tension pressure of the film 5 to deform the shape of the roll surface, and the film 5 is broken or wrinkled.

  Another example of the liquid draining roll is one in which a groove is formed on the roll surface and the liquid is drained in this groove, but the corner portion of the step formed at the boundary between the groove and the portion where there is no groove on the roll surface. As a result, there is a problem that the film is damaged.

Japanese Patent Laid-Open No. 7-1610

The present invention has been made in consideration of such circumstances, and in a roll-to-roll wet treatment transporting apparatus in which a film is unwound from a roll, dipped in a liquid, wet-treated, and wound up again on a roll. The problem is that no conveyance failure occurs, no creases or wrinkles occur, scratches do not occur, and the liquid can be drained.

  In order to solve the above problems in the present invention, first, in the invention of claim 1, a material having a low hardness and a high water absorption and a material having a low water absorption and a high hardness are arranged in the rotation direction around the roll axis. The liquid draining roll is characterized by being alternately arranged without unevenness.

  Further, in the invention according to claim 2, around the roll axis, a material having low hardness and high water absorption and a material having low water absorption and high hardness are arranged around the material having low water absorption and high hardness. The liquid draining roll is characterized in that it is arranged without irregularities in a spot pattern surrounded by a material having low hardness and high water absorption.

  The invention according to claim 3 is characterized in that the low hardness and high water absorption material is a sponge material, and the low water absorption and high hardness material is a rubber material. Alternatively, the liquid draining roll described in 2 is used.

  Further, the invention according to claim 4 is a roll-to-roll wet processing conveyance device that unwinds from a roll, immerses in a liquid, performs a wet process, and winds the roll again. A roll-to-roll wet processing conveyance device characterized in that the film is pulled up from the liquid by a liquid cutting roll.

  In the invention according to claim 1, since the material having low hardness and high water absorption and the material having low water absorption and high hardness are alternately arranged in the rotation direction without unevenness around the roll axis. When used as a free roll that pulls up the film from the liquid in a roll-to-roll wet processing conveyance device that unwinds from the roll, immerses in the liquid, performs wet treatment, and winds up again on the roll, the liquid interposed between the film and the roll , Remove with a material with low hardness and high water absorption, prevent the friction force between the film and the roll from decreasing, and make it difficult to slip between the film and the roll. It can prevent poor conveyance such as loosening, and the tension of the film is applied to a material with low water absorption and high hardness. Reduce shape, it is possible to suppress the generation of breakage or wrinkles the film and gone irregularities in the roll surface, there is an effect that the film can be prevented scratches into the film being held in a roll.

  In the invention according to claim 2, a material having a low hardness and a high water absorption and a material having a low water absorption and a high hardness are disposed around the roll axis around the material having a low water absorption and a high hardness. The roll-to-roll wet treatment transporting device that is placed in a spotted pattern surrounded by a material with low water absorption and high water absorption, so that it is unwound from the roll, dipped in liquid, wet treated, and wound up again on the roll When used as a free roll to pull the film out of the liquid, the liquid on the material with low water absorption and high hardness is removed by the material with low ambient hardness and high water absorption. And the liquid intervening between the film and the roll is removed with a material having low hardness and high water absorption to prevent the friction force between the film and the roll from being lowered. It is possible to prevent slippage between the film and the roll from occurring, and as a result, it is possible to more reliably prevent poor conveyance such as meandering and loosening of the film, and the tension pressure of the film can absorb water. It is applied to a low and high hardness material, can reduce deformation of a low hardness and high water absorption material, can suppress the occurrence of film folds and wrinkles, and has no irregularities on the roll surface, so that the film is held on the roll. There is an effect that the film can be prevented from being damaged.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the material having low hardness and high water absorption is a sponge material, and the material having low water absorption and high hardness is a rubber material. Therefore, the effect of the invention according to claim 1 or 2 is obtained.

  The invention according to claim 4 is a roll-to-roll wet processing conveyance device that unwinds from a roll, immerses in a liquid, performs a wet process, and winds the roll again. Since the film is pulled up from the liquid by the cutting roll, there is an effect that it is possible to prevent the film from being poorly conveyed and from being broken, wrinkled and scratched.

  As described above, in the roll-to-roll wet processing transport apparatus, the film is unwound from a roll, dipped in a liquid, wet-processed, and wound again on a roll. It has the effect of preventing or scratching.

It is a figure which shows 1st Embodiment of the liquid cutting roll of this invention, Comprising: (a) is a front view, (b) is a side view. It is a figure which shows 2nd Embodiment of the liquid cutting roll of this invention, Comprising: (a) is a front view, (b) is a side view. The schematic diagram explaining the roll to roll wet processing conveyance apparatus provided with the liquid cutting roll of this invention. The schematic diagram explaining the pressure of the tension of the film added to the liquid cutting roll of this invention. The schematic diagram explaining the conventional roll to roll wet processing conveyance apparatus.

  Hereinafter, embodiments of the present invention will be described.

  As shown in FIG. 1, the first embodiment of the liquid draining roll of the present invention includes a material 2 having low hardness and high water absorption, and a material 3 having low water absorption and high hardness around the roll shaft 1. Are liquid draining rolls arranged alternately in the rotation direction without unevenness.

  Moreover, as shown in FIG. 2, the second embodiment of the liquid draining roll of the present invention has a material 2 having a low hardness and a high water absorption, and a low water absorption and a high hardness around the roll shaft 1. The material 3 is a liquid draining roll arranged without irregularities in a spot pattern surrounding the material 3 having low water absorption and high hardness with the material 2 having low hardness and high water absorption.

  The material 2 with low hardness and high water absorption is, for example, a sponge material.

  The material 3 having low water absorption and high hardness is, for example, a rubber material.

  The roll-to-roll wet processing transport apparatus of the present invention uses the liquid draining roll of the present invention as a free roll 25 for pulling up the film 5 from the liquid 24 in the roll-to-roll wet processing transport apparatus shown in FIG.

That is, as shown in FIG. 3, the roll-to-roll wet processing conveyance device of the present invention includes a driving unit 10, a wet processing unit 20, and a driving unit 30, and the driving unit 10 is a dancer roll 11.
, The drive roll 12 and the free roll 13, the wet processing unit 20 contains the liquid 24, the free roll 21, the free roll 22, and the liquid draining roll 23 of the present invention, and the drive unit 30 drives the dancer roll 31. A roll 32, and the film 5 is driven in the transport direction D by the drive roll 12 and the drive roll 32 while keeping the tension of the film 5 constant by the dancer roll 11 and the dancer roll 31, and the free roll 13 and the free roll 21. And a free roll 22 is a roll-to-roll wet processing conveyance device in which the film 5 is immersed in the liquid 24 and the film 5 is pulled up from the liquid 24 by the liquid draining roll 23 of the present invention.

  When the liquid draining roll 23 of the present invention is the first embodiment of the liquid draining roll of the present invention shown in FIG. 1, as shown in FIG. 1, around the roll shaft 1, the hardness is low and the water absorbing property is low. Since the high material 2 and the material 3 having low water absorption and high hardness are alternately arranged without unevenness in the rotation direction, the liquid interposed between the film and the roll is made to have low hardness and water absorption. Remove with high material 2 to prevent lowering of friction between film and roll, making it difficult for slippage between film and roll, and as a result, preventing poor conveyance such as meandering and slack of film it can. Then, the tension pressure P of the film 5 as shown in FIG. 4 is applied to the material 3 having low water absorption and high hardness, reducing deformation of the material 2 having low hardness and high water absorption, Generation of wrinkles can be suppressed. And the unevenness | corrugation is lost on the roll surface, and it can prevent that a film is embraced by a roll and a film | membrane is damaged.

  Further, when the liquid draining roll 23 of the present invention is the second embodiment of the liquid draining roll of the present invention shown in FIG. 2, as shown in FIG. Material 2 having high water-absorbing property and material 3 having low water-absorbing property and high hardness form a patch pattern surrounding the material 3 having low water-absorbing property and high-hardness with the material 2 having low water-absorbing property and high water-absorbing property. Since the liquid on the material 3 having a low water absorption and high hardness is removed by the material 2 having a low hardness and high water absorption, the liquid can be absorbed on the roll surface. The liquid interposed between the film and the roll is removed with the material 2 having low hardness and high water absorption, and the friction force between the film and the roll is prevented from being lowered. As a result, it is difficult to cause slippage. Preventing conveyance failure such as meandering or slack of the beam is performed more reliably. Then, the tension pressure P of the film 5 as shown in FIG. 4 is applied to the material 3 having low water absorption and high hardness, reducing deformation of the material 2 having low hardness and high water absorption, Generation of wrinkles can be suppressed. And the unevenness | corrugation is lost on the roll surface, and it can prevent that a film is embraced by a roll and a film | membrane is damaged.

  Thus, since the roll-to-roll wet processing and conveying apparatus of the present invention pulls up the film 5 from the liquid 24 by the liquid draining roll 23 of the present invention, the film is poorly conveyed, broken or wrinkled, The film can be wound up with a long film.

DESCRIPTION OF SYMBOLS 1 ... Roll shaft 2 ... Material with low hardness and high water absorption (for example, sponge material)
3. Material with low water absorption and high hardness (for example, rubber material)
DESCRIPTION OF SYMBOLS 5 ... Film 10 ... Drive part 11 ... Dancer roll 12 ... Drive roll 13 ... Free roll 20 ... Wet process part 21 ... Free roll 22 ... Free roll 23 ... Liquid draining roll 24 ... Liquid 25 ... Free roll 30 ... Drive part 31 ... Dancer roll 32 ... Drive roll D ... Conveying direction P ... Pressure

Claims (4)

  A liquid draining roll, characterized in that a material having low hardness and high water absorption and a material having low water absorption and high hardness are alternately arranged in the rotation direction without unevenness around the roll axis.   Around the roll axis, a material having low hardness and high water absorption, and a material having low water absorption and high hardness, a material having low water absorption and high hardness, and a material having low hardness and high water absorption. A liquid draining roll characterized in that it is arranged without irregularities in a spotted pattern surrounded by.   The liquid draining roll according to claim 1 or 2, wherein the material having low hardness and high water absorption is a sponge material, and the material having low water absorption and high hardness is a rubber material.   It is a roll-to-roll wet processing conveyance device that unwinds from a roll, immerses in a liquid, performs wet processing, and winds up again on the roll, and pulls the film out of the liquid with the liquid draining roll according to claim 1. A roll-to-roll wet processing conveyance device characterized by the above.

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