JP5350343B2 - Film pretreatment equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent dust adhesion to a base film due to static electricity when separating a protection sheet from a light shielding film that is attached to a window, and to simplify attachment work of the base film to a window. <P>SOLUTION: A laminated film F1 is dipped into separating water W stored in a water tank 2. The base film S is placed on the upper side of a first separating rod 8a and a second separating rod 8b which are provided within the separating water W, the protection sheet P is placed on the bottom side, and then the protection sheet P is separated from the base film S. The first separating rod 8a is thinner than the second separating rod 8b, so that the contact length between the first separating rod 8a and the base film S, and the protection sheet P is short, and the separating water W quickly reaches an adhesive layer A of the back of the base film S. The separated protection sheet P and the base film S are placed on the upper side of a pressing rod 9, and a piece of laminated film (pre-treated film F2) is acquired in the state that the separating water W enters between them. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a film pretreatment apparatus having a light shielding function and a scattering prevention function used by being attached to a window of a residence, a building, an automobile or the like.

  In order to increase the cooling efficiency or prevent the window from being broken by an external impact, a film having a light shielding function and a scattering prevention function is attached to the surface of the window.

  As this film, what laminated | stacked the base film S provided with the said light-shielding function etc. and the protective sheet P which protects the adhesion layer A formed in the back surface of this base film S was used as one laminated film F1. It is commercially available. When using this laminated film F1, as shown in FIG. 5 (a), the protective sheet P is peeled from the laminated film F1 by hand. Then, the front surface of the window and the back surface of the base film S (the surface on which the adhesive layer A is formed) are wetted with a spray or the like, and the base film S is applied to the window as shown in FIG. paste. At the time of this pasting, bubbles and excess water remaining between the window and the base film S are driven out from the outer edge of the base film S using a squeegee or the like.

  Since the peeling operation of the protective sheet P is performed in a state where the laminated film F1 is dried, static electricity is likely to be generated along with the peeling. When static electricity is generated, it becomes easy to adsorb dust, and this dust is sandwiched between the window and the base film S, which may impair the beauty. Further, the base film S is likely to be rounded due to static electricity, and sticking occurs due to the adhesive layer A formed on the back surface of the base film S, and the base film S may become unusable. Furthermore, since the protective sheet P is peeled off against the adhesive force of the adhesive layer A, a considerable force is often required. Depending on how this force is applied (peeling direction), the base film S may be wrinkled or stretched. It may occur and its aesthetics may be impaired.

  Accordingly, the present invention has an object to prevent dust from adhering to the base film due to static electricity when the protective sheet is peeled off, and to be able to easily perform the film affixing operation to the window. To do.

  In order to solve the above-mentioned problems, in the present invention, a protective tank for protecting a base film and an adhesive layer of the base film is provided so as to store a release water, and to be immersed in the release water and to be bridged in the water tank. A peeling rod for peeling off the protective sheet from the laminated film laminated together, and the protective sheet peeled off by the peeling rod are integrated and integrated with the base film. A pressure bonding means, and the base film of the laminated film immersed in the peeling water is arranged along one outer peripheral direction of the peeling bar, and the protective sheet is arranged along the other outer circumferential direction of the peeling bar. Pulling each to peel off the protective sheet from the base film, and in the peeled state, both pass through the peeling water, the base film And with the surface of the protective sheet wetted by the release water, the base film and the protective sheet are overlapped by the pressure-bonding means to integrate the two, and the peeling is performed between the overlapped base film and the protective sheet. The film pretreatment device was configured to intervene water.

  In the peeling step, the peeling water mainly passes between the peeling bar and the base film or the protective sheet, and reaches the adhesive layer at the peeling interface between the base film of the laminated film and the protective sheet. At this time, since peeling water exists between the peeled adhesive layer of the base film and the peeling bar, the pressure-sensitive adhesive layer does not directly contact the surface of the peeling bar. For this reason, the said adhesion layer does not stick on the surface of the said peeling rod, and the peeling operation | work of the said protection sheet from the said base film by this peeling rod can be performed smoothly. Moreover, since this peeling operation is performed in peeling water, static electricity is not generated. For this reason, dust etc. are not adsorbed during work, and a good aesthetic appearance of the base film can be ensured.

  In the laminated film (pretreated film) in the state where the release water is interposed, the adhesive layer formed on the back surface of the base film and the protective sheet are not in direct contact, and the surface tension of the base film and the protective film depends on the surface tension of the release water. The protective sheets are attached to each other. For this reason, compared with the case where the said protective sheet is directly affixed on the said adhesion layer, this protective sheet can be peeled easily and the sticking operation | work of the base film to a window etc. can be performed easily. it can.

  For the adhesive layer, an acrylic adhesive, a rubber adhesive, a silicon adhesive, or the like is used. The peeling water is not particularly limited as long as it does not cause damage such as dissolving the adhesive layer. In the peeling operation, it is particularly preferable to use a water-added surfactant such as a detergent so that the peeling water is quickly interposed between the peeling bar, the base film and the protective sheet. preferable.

  In addition to the function of peeling the protective sheet from the base film (first function), the peeling bar is not prepared until the both are separated by a predetermined distance and integrated again with the crimping bar. It also has a function (second function) for preventing reattachment. This is because, when partial re-adhesion occurs, sagging occurs in the laminated film, and smooth conveyance of the film is hindered. The predetermined distance corresponds to the thickness of the peeling rod, and the thickness is appropriately determined so as to ensure the second function.

  Moreover, in the said structure, the said peeling bar is comprised from two of the 1st peeling bar and the 2nd peeling bar, the said 1st peeling bar is thinner than the said 2nd peeling bar, and the said laminated | multilayer film is said 1st. It is preferable that the protective sheet is peeled off in the order of one peeling bar and the second peeling bar.

  The base film and the protective sheet peeled from the base film by the peeling bar are transported along one and the other in the outer peripheral direction of the peeling bar, respectively. At this time, the base film and the protective sheet are subjected to a pulling force in the pulling direction, and by this tensile force, the outer peripheral surface of the peeling bar and the base film or the protective sheet are in contact with each other. ing. Here, the release water reaches the pressure-sensitive adhesive layer mainly through a gap between the release rod and the base film or the protective sheet, but the reach is easier as the contact length is shorter. .

  Therefore, the protective sheet is first peeled from the base film with a thin first peeling bar, and the base film and the protective sheet are separated by a predetermined distance with a second peeling bar thicker than the first peeling bar. Since the first peeling rod is short in contact with the outer peripheral surface and the base film, the peeling water quickly reaches the adhesive layer, and the first function is sufficiently exhibited. Further, the second function of preventing re-adhesion between the peeled protective sheet and the base film by sufficiently separating the base film and the protective sheet separated by the first peel bar with the second peel bar is also exhibited. The

  Moreover, in each said structure, it is preferable to provide the both ends of the said peeling rod in the said inner wall with play in a perpendicular | vertical direction with respect to a support shaft by a holding | maintenance part.

  When the protective sheet is peeled off, the laminated film (base film and protective sheet) is usually pulled by hand to the side of the crimping rod, and the protective sheet is peeled from the base film with the tensile force. At this time, if the tensile force is too large, the laminated film may be torn or stretched. Therefore, if a slight play is given to the peeling bar, when an excessive tensile force acts on the laminated film, the peeling bar moves in the direction in which the tensile force acts, and this tensile force is relaxed. It is possible to prevent tearing of the laminated film.

  Moreover, in each said structure, it is preferable that the said crimping | compression-bonding means is a crimping rod.

  When the peeled base film and the protective sheet are integrated, the base film and the protective sheet are passed along the same outer peripheral direction of the crimping rod, so that they can be integrated.

  Moreover, in each said structure, it is preferable to provide the gauge which measures the conveyance length of a laminated film.

  This laminated film needs to be cut in advance according to the area of the window to be applied. Especially in the case of a large area window, in order to measure the length of this laminated film, a wide area for spreading the laminated film is secured. There must be. Therefore, if a gauge for measuring the transport length is provided, the length can be measured simultaneously with the pretreatment of the laminated film, and it is not necessary to widen the laminated film, and the working efficiency is high.

  In this invention, before the film is attached to the window, in the release water stored in the water tank, the protective sheet is peeled off from the base film of the laminated film by the release rod, and the release water is interposed between the two. And were integrated by means of pressure bonding. Since the peeling operation is performed in the peeling water and does not easily generate static electricity, dust or the like is not adsorbed to the base film, and a good film appearance can be secured. Moreover, since the peeling water intervenes between the adhesive layer of the base film and the protective sheet and the two are not in direct contact with each other, the protective sheet can be easily peeled off when being attached to a window or the like. For this reason, the working efficiency of the pasting work is high.

The longitudinal cross-sectional view which shows the pre-processing apparatus of the film which concerns on this invention The perspective view of the film pre-processing apparatus shown in FIG. Cross section of pretreated film It is a longitudinal cross-sectional view which shows the peeling process of a laminated | multilayer film, Comprising: When (a) peels using a small diameter peeling bar (1st peeling bar) and a large diameter peeling bar (2nd peeling bar), (b ) Indicates when peeling using only a large-diameter peeling rod (second peeling rod) (A) is a perspective view which shows the structure of a general laminated film, (b) is sectional drawing which shows the state which affixed the base film on the window

  FIG. 1 is a longitudinal sectional view of a film pretreatment apparatus according to the present invention, and FIG. 2 is a perspective view of the entire apparatus. The film pretreatment apparatus includes a film supply unit 1 for setting a roll-shaped laminated film F1, a water tank 2 for performing separation and integration of the laminated film F1, and a pretreated laminated film (pretreated film F2). ) And stocker 3 for storing.

  The film supply unit 1 includes a roll support shaft 4 that supports a laminated film F1 wound around a roll, a table 5 that supports the laminated film F1 to be conveyed, and a gauge 6 that measures the conveyance length of the laminated film F1. Is provided. The gauge 6 includes a rotation detection unit 7 that is close to the table 5.

  The laminated film F1 is obtained by bonding a base film S having a light shielding property and the like, and a protective sheet P protecting the adhesive layer A formed on the back side of the base film S via the adhesive layer A. is there. The laminated film F1 drawn out from the roll is passed through a gap between the table 5 and the rotation detector 7 of the gauge 6. And this rotation detection part 7 rotates with drawer | drawing-out of the laminated | multilayer film F1, and the drawer | drawing-out length of the laminated | multilayer film F1 is measured from the rotation speed.

  The laminated film F1 is further sent to the water tank 2. In this water tank 2, peeling water W obtained by adding a predetermined amount of a surfactant (detergent) to water is stored. When the surfactant is added in this manner, the surface tension of water is reduced, and in the peeling operation of the protective sheet P, which will be described later, the peeling water W becomes an adhesive layer A between the base film S and the protective sheet P (FIG. 5A )) Quickly.

  On the inner wall of the water tank 2, from the film supply unit 1 side to the stocker 3 side, there are three rods of a first peeling rod 8a, a second peeling rod 8b and a crimping rod 9 each having a round bar shape. They are provided in this order in parallel with the roll support shaft 4 of the supply unit 1. The first peeling bar 8a and the second peeling bar 8b are immersed in the peeling water W, and the crimping bar 9 is exposed on the surface of the peeling water W. Moreover, the both ends of the 2nd peeling stick | rod 8b are supported by the holding | maintenance part 10 which has an internal diameter larger than the diameter, and have the play of the orthogonal | vertical direction with respect to the axial direction.

  The first peeling bar 8a is thinner than the second peeling bar 8b, and its diameter is about 1/4 of the diameter of the second peeling bar 8b. The diameter of the second peeling rod 8b can be determined as appropriate, but the base film S hangs down on the protective sheet P and is not reattached before the two are integrated with the crimping rod 9 as described later. It is responsible for separating the two. For this reason, it is necessary to make the diameter of this 2nd peeling stick | rod 8b more than predetermined.

  In the peeled water W, the laminated film F1 sent to the water tank 2 has the protective sheet P peeled off from its end portion by hand, and the base film S is located above the first peeling rod 8a and the second peeling rod 8b. The protective sheet P is passed along the stocker 3 side by hand so that the protective sheet P is along the lower side of the first peeling bar 8a and the second peeling bar 8b. At this time, when the base film S or the protective sheet P is suddenly pulled to the stocker 3 side and an excessive external force is applied to the base film S or the like, the direction in which the external force acts on the second peeling rod 8b due to the play. The external force is relieved by moving the For this reason, it is prevented that the base film S etc. are torn or stretched by this external force.

  The base film S and the protective sheet P, which are passed along the upper and lower sides of the first peeling bar 8a and the second peeling bar 8b, are both passed along the upper side of the crimping bar 9, and are superposed here. Again, a single laminated film (pretreated film F2) is obtained. Between the adhesive layer A on the back surface of the base film S of the pretreated film F2 and the protective sheet P, as shown in FIG. The base film S and the protective sheet P are attached to each other by the surface tension of the peeling water W.

  When the pretreated film F2 is pulled by hand to the stocker 3 side by the required length, the roll-shaped laminated film F1 is drawn out in conjunction with it and further fed into the water tank 2. At this time, as described above, the pull-out length of the laminated film F1 is measured by the gauge 6. Using the gauge 6 as a guide, the pre-processed film F2 is cut with a knife or the like. The pretreated film F2 cut to an appropriate length is temporarily placed on the stocker 3. Thus, with the pretreatment of the laminated film F1, the pull-out length (the length of the pretreated film F2) is measured by the gauge 6, so the laminated film F1 is expanded and the length is measured. Compared with, the work space can be greatly reduced. Further, since the peeling operation is performed in the peeling water, it is possible to prevent dust and the like from being adsorbed by static electricity.

  The film pretreatment apparatus according to this configuration employs two peeling bars (first peeling bar 8a and second peeling bar 8b) having different diameters. FIGS. 4A and 4B show a comparison in the peeling process when two peeling bars are used and when only one (second peeling bar 8b) is used.

  In the peeling process using this peeling stick 8, it is performed in the peeling water W as described above, and the peeling water W reaches the adhesive layer A between the base film S and the protective sheet P. This peeling water W is interposed between the peeling bar 8 and the base film S (adhesive layer A) to prevent the adhesive layer A from sticking directly to the surface of the peeling bar 8. The protective sheet P can be peeled off.

  The peeling water W is formed from the tip (g part) of the arrow in the figure, the first peeling bar 8a (see FIG. 4 (a)) or the second peeling bar 8b (see FIG. 4 (b)), the base The adhesive layer A is reached through between the film S and the protective sheet P. However, since the base film S and the protective sheet P are pulled in the direction of the crimping rod 9 during the peeling operation, the size of the gap between them is very small. That is, in order for the peeling water W to reach the adhesive layer A quickly from the g part, it is preferable that the contact length between the peeling bar 8, the base film S, and the protective sheet P is as short as possible.

This contact length is a first peel bar 8a of small diameter when placed side by side second peel bar 8b of large diameter, and L ₁ shown by a broken line arrow in FIG. 4 (a). In contrast, when only the second peel bar 8b of large diameter, and L ₂ indicated by a broken line arrow in FIG. 4 (b). Thus, the contact length is much shorter in the configuration in which the first peeling bar 8a and the second peeling bar 8b are arranged, and the peeling water W easily reaches the adhesive layer A. For this reason, the peeling operation | work of the protection sheet P can be performed easily.

  As described above, by using the two peeling rods 8a and 8b having diameters that are sequentially increased, the peeling operation of the protective sheet P can be performed more easily. However, as shown in FIG. Needless to say, the peeling operation can be performed with the stripping rod 8.

  In the above embodiment, the base film S is passed above the first peeling bar 8a and the second peeling bar 8b, and the protective sheet P is passed below, but the protective sheet P is passed above and the base film S is passed below. Good. Even if it does in this way, it is because the function of this apparatus of interposing the peeling water W between the base film S and the protection sheet P can be exhibited.

  The crimping bar 9 is not necessarily an independent member. For example, the upper edge of the water tank 2 on the side of the stocker 3 is rounded along the conveying direction of the pretreated film F2, and this upper edge is used as the base film. It can be made to function as the crimping | compression-bonding rod 9 which superimposes and integrates S and the protective film P. This is because the crimping bar 9 only needs to have a function of integrating the base film S and the protective sheet P, and it is sufficient if the integration can be performed by the upper edge of the water tank 2 in this way.

  The pre-processed film F2 processed by the film pre-processing apparatus according to the present invention is in a state in which the peeling water W is interposed between the base film S and the protective sheet P. For this reason, the adhesive layer A on the back surface of the base film S is not directly attached to the protective sheet P, and the protective sheet P can be easily peeled off when being applied to a window or the like. In addition, since the peeling water W is attached to the sheet body S in advance, it is not necessary to wet the window or the like with a mist spray or the like during the operation. For this reason, the pasting work efficiency of this base film S can be improved significantly. After the pasting operation is completed, when the peeling water W is removed and the base film S is dried, the adhesive layer A exhibits a predetermined adhesive force, and the base film S can be firmly attached to the window.

DESCRIPTION OF SYMBOLS 1 Film supply part 2 Water tank 3 Stocker 4 Roll support shaft 5 Table 6 Gauge 7 Rotation detection part 8 Peeling bar 8a First peeling bar 8b Second peeling bar 9 Crimping bar 10 Holding part F1 Laminated film F2 Pretreated film S Base film P Protective sheet A Adhesive layer W Release water

Claims (5)

From the water tank for storing the release water, and the laminated film which is provided so as to be immersed in the release water and spanned in the water tank, and the base film and the protective sheet for protecting the adhesive layer of the base film are bonded together, the protective sheet A peeling rod that peels off, and a pressure-bonding means that is provided so as to be bridged in the water tank, and that overlaps and integrates the protective sheet peeled off by the peeling rod with the base film,
The base film of the laminated film immersed in the peeling water is pulled along the outer peripheral direction of one of the peeling bars so as to be along the outer peripheral direction of the peeling bar, and the base film is pulled. The protective sheet is peeled off from the film, and both are passed through the peeling water in the peeled state,
While the surfaces of the base film and the protective sheet are wet with the release water, the base film and the protective sheet are overlapped by the pressure-bonding means to integrate both, and between the overlapped base film and the protective sheet A film pretreatment apparatus in which the peeling water is interposed.   The peeling bar is composed of a first peeling bar and a second peeling bar, the first peeling bar is thinner than the second peeling bar, and the laminated film is the first peeling bar and the second peeling bar. The film pretreatment device according to claim 1, wherein the protective sheet is peeled by being conveyed in the order of the peeling bar.   The film pretreatment device according to claim 1 or 2, wherein both ends of the peeling bar are provided with play in a direction perpendicular to a support shaft by a holding portion.   The film pretreatment device according to any one of claims 1 to 3, wherein the pressure bonding means is a pressure bonding rod.   The film pretreatment device according to any one of claims 1 to 4, further comprising a gauge for measuring a conveyance length of the laminated film.

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