JPH04130196U - Equipment for adding moisture to pressure-sensitive adhesive sheets for die-cutting processing - Google Patents

Abstract

(57) [Summary] [Purpose] When adhesive adheres to or accumulates on the cutting edge of an adhesive sheet, the cutting ability and life of the cutting edge will decrease, and the cutting position and printing position will be affected. Avoid these kinds of problems as they will cause you to go crazy. [Structure] During conveyance of the pressure-sensitive adhesive sheet (M) for die-cutting processing, as a device (D) that adds moisture to the surface of the base paper (12), it elastically contacts the surface of the base paper (12) and rotates on its axis. A plurality of rotating rolls (25) and the rotating rolls (25)
5) a plurality of water discharge nozzles (35) for dripping water;
A pair of draining guides (38) are provided which resiliently contact both left and right ends of the base paper (12) from above.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention applies water to the surface of the base paper of the adhesive sheet for die-cutting process prior to the die-cutting process. The present invention relates to a device for granting minutes.

0002

[Conventional technology]

Generally, adhesive is applied to the back side of base paper made of paper or plastic film. Adhesive sheets made by polymerizing paper or plastic film are also commonly known as ta-ta. It is widely used as adhesive paper, and the surface of the base paper of such adhesive sheets is coated with appropriate images. After printing the lines, either the two layers of the base paper and the adhesive, or the entire adhesive sheet including the release paper. By cutting the body into a predetermined opening shape, various labels, stickers, and letters can be made. Printed materials such as tell and stetsker are being produced.

0003 Also, for example, double-sided adhesive tape that is used as an assembly part of so-called small calculators. The same die-cutting process can be done at once without printing in the previous process. What is being done is also being implemented.

0004 However, in the die-cutting process of this type of adhesive sheet, the base paper is impregnated or coated. The blade shape also cuts out the adhesive, and at that time, it also cuts out the adhesive. Since the pressurizing force of the blade die is applied to the surface of the base paper, the die cutting process must be repeated. Inside, the adhesive gradually seeps out from the back side of the base paper (the so-called glue gushing phenomenon). Adhesive adheres to and accumulates on the surface of the blade, prematurely reducing the cutting ability and lifespan of the blade edge. When the adhesive is finally transferred from the blade mold to the surface of the base paper again, This will cause a vicious cycle.

[0005] If adhesive adheres to the blade mold, the adhesive sheet will be forcibly pulled, The printing position and punching position relative to this will be out of order. Also, it sticks to the surface of the base paper. When the agent transfers, the finish will change if the surface has been printed in the previous process. The product becomes defective.

[0006] Furthermore, when the adhesive sheet is in the form of a non-sheet paper wrapper, the adhesive is applied to the back side of the release paper. The back side of the release paper and the surface of the base paper become caking and integrated. Therefore, it is impossible to maintain the finished product in an orderly polymerized state.

[0007] Therefore, the applicant proposed that the surface of the base paper should be or/and a method characterized in that the cutting edge of the blade is wetted by applying moisture. Regarding Ming, we previously proposed patent application No. 1-236571.

[0008]

[Problem that the idea aims to solve]

However, as a moisture imparting device (D) for carrying out the method, the above-mentioned applied invention Drawing - As suggested in Figure 6, the cutter die (16) in the die cutting device (B) A water supply pipe (25a) is drilled through the mounting base (27) and goes to the cutting edge (28). By forming a tank and pumping water from the water tank (23a) to this In the configuration in which moisture is applied to the cutting edge (28), the target punched shape may change. For each of the various blade types (16), the moisture imparting device (D) is processed and installed as an accessory. It is extremely troublesome, cannot be expected to be effective in mass production, and is inferior in versatility. .

[0009]

[Means to solve the problem]

In order to solve these problems, this invention has a structure in which adhesive is applied to the back side of the base paper. During transportation of the pressure-sensitive adhesive sheet for die-cutting, which is made by polymerizing and integrating release paper, As a device to add moisture to the surface of the base paper, it is used as a device that elastically contacts the surface of the base paper. Multiple shafts are mounted in parallel in front and behind, crossing the upper position so as to rotate on their own axis. A rotating roll and its upper position so that moisture drips onto the circumferential surface of the rotating roll. multiple water spray nozzles fixedly piped to the Located in front of the rotating roll located on the front side, a bullet is fired from above to both the left and right ends of the base paper. A pair of draining guides are arranged so as to be in forceful contact with each other. The dripping water is automatically transferred to the surface of the base paper using rotating rolls. Its main feature is that it is set to

0010

[Effect]

According to the above structure of the present invention, since moisture is added to the surface of the base paper of the adhesive sheet, The adhesive of the adhesive sheet does not adhere to the wet area due to the water, resulting in the so-called glue gushing phenomenon. As a result, the adhesive sheet is then repeatedly cut by the blade of the die-cutting device. However, there is a risk of reducing the cutting ability of the cutting edge or damaging it. There isn't that.

[0011] Also, adding moisture eliminates static electricity and heat generation from the cutting edge of the blade. Therefore, the lifespan of the blade mold can be improved as well as the blade mold and adhesive sheet. Since there is no misalignment due to contact with the You will be able to get the status.

0012 Furthermore, while the adhesive sheet is being transported, it comes into elastic contact with the surface of the base paper. It is applied to the coating or wiping state by transferring moisture using a rotating roll. During the manufacturing process of printed matter and double-sided adhesive tape made from the adhesive sheet, It is extremely easy to incorporate and install, and the versatility and mass production efficiency of the device is greatly improved. Excellent.

[0013] In other words, if there is a device that adds moisture to the cutting edge of the cutting die that makes up the die-cutting device, Because it is necessary to prepare a wide variety of products with different cutting shapes for the purpose of cutting edge shapes. However, the moisture imparting device must be installed separately for each blade type, making it difficult to mass produce. However, the present invention can solve this problem.

[0014] In addition, multiple rotating rolls are arranged in parallel on the surface of the base paper in the adhesive sheet. The elastic membrane on the circumferential surface makes slight frictional contact with the surface of the base paper. As it rotates on its own axis, moisture is transferred to the surface of the base paper, so the overall It can apply moisture evenly and evenly, and resists the conveying action of the adhesive sheet. There is no risk of giving it away.

[0015] Moreover, due to the conveyance direction of the adhesive sheet, the rotary roller located at the frontmost side A pair of draining guides are also installed in front of the door facing the left and right ends of the adhesive sheet. This elastically contacts the surface of the base paper and drains water at both the left and right edges. The water added by the rotating rolls is absorbed into the base paper. There is no risk of it accidentally going around from both the left and right ends to the back side, and as a result, there is no possibility of the adhesive being stuck on the back side. During the die-cutting process, the release paper is also prevented from being shredded by the cutter die. It can be stopped.

[0016]

【Example】

Below, the specific configuration of the present invention will be described in detail based on the illustrated embodiment. First, FIG. It represents the manufacturing process of bells, stickers, etc., and (M) represents the manufacturing process of such printed materials. It is a general term for the adhesive sheet (commonly known as tack paper) that is the material, and has an adhesive (11 ) is applied to the base paper (12) and the base paper (12) is coated with the adhesive (11). The base paper (12) and the release paper (13) are integrated into one. 13) Not only paper but also plastic film may be used. Ru.

[0017] Such a band-shaped adhesive sheet (M) is made into a non-sheet wrapping paper and is rolled on a feeding roll ( 14) is automatically and intermittently fed out and conveyed, and during the conveyance process, the printing device (A) By printing a certain drawing line (15) on the surface of the base paper (12), An opening (17) of a certain shape is formed by the intermediate cutting die (16) of the continuous die cutting device (B). Cut out and process.

[0018] After that, the die-cut peripheral part of the adhesive sheet (M) is removed as scraps. Then peel it off with another peeling tape (18), and then remove the remaining adhesive sheet (M). It can be wound up on the take-up roll (19) once, or it can be automatically rolled up at once without being wound up. It is sent to an external cutting device, and after the cutting process, it is made into labels such as those shown in Figures 2 and 3. It will be completed as a printed matter. (C) is used to dry the printing ink. 2 shows a UV device interposed immediately after the placement (A).

[0019] In the printed matter of Figures 2 and 3, the base paper (12) and the adhesive (1 1) In other words, apertures (17) of a certain shape are cut out over two layers. However, the entire adhesive sheet (M) including the release paper (13) is cut into a certain shape. It is also possible to perform punching.

[0020] In addition, as suggested from Figure 1, in order to protect the printing surface of the base paper (12), In the middle of the printing ink drying process and the die cutting process, transparent material is applied to the surface of the base paper (12). Applying a masking sheet (20) made of clear plastic film In this case, the masking sheet (20) is also placed in the die-cutting device (B). Therefore, they are cut out all at once.

[0021] Figure 4 shows a modification of Figure 1, in which double-sided adhesive tape is used as an assembly part for small calculators, etc. It shows the manufacturing process, and as is clear from the comparison between the two figures, the printing device ( Installation of A) and UV device (C) is omitted, and mold cutting is required for the adhesive sheet (M). Only the punching process of a certain shape is performed through the cutting machine (B). ing. In other words, printing on the surface of the base paper of the adhesive sheet (M) is omitted. It's an acceptable meaning.

[0022] In any case, the moisture imparting device (D) of the present invention can be applied to printed materials such as those mentioned above and double-sided adhesive. In the manufacturing process of tapes, etc., the adhesive sheet (M) of the material is die-cut. At this time, it is inserted into the position immediately before the die-cutting processing device (B), thereby cutting the base paper ( 12) Automatically adds a small amount of moisture to the surface to keep it appropriately wet. While maintaining it, the above-mentioned die cutting process can be performed.

[0023] The moisture applicator (D) for this purpose has a configuration as shown in FIGS. 5 to 9. That is, (21) is the equipment frame, which includes a water storage tank (22) at the bottom and a cover case at the top. It is assembled into a unit that can be opened and closed from the base (23), and there is a connection between the upper and lower parts. The adhesive sheet (M) is transported in the direction of the arrow in Figures 5 and 6 without any hindrance. There is.

[0024] (24) are mutually flat so as to cross over the base paper (12) of the adhesive sheet (M). A plurality of roll support shafts supported in a row, each of which has a rotating roll (25 ) is covered. Each of the rotating rolls (25) is made of metal or hard plastic. The body tube (26) of Tsuku etc. and the cotton or sponge material attached to its circumferential surface are integrated. which elastic film (27) is formed, and the elastic film (27) is on the surface of the base paper (12). The base paper (1 2) It rotates as if wiping the surface. In other words, due to the frictional force with the base paper (12) It is designed to have a rotational effect.

[0025] In that case, as is clear from FIG. 7, each roll support shaft (24) has a plurality of The short rotating roll (25) is rotatable and can be rotated in the axial direction (horizontal and horizontal directions). It is preferable to fit the sleeve in a slidable manner. All of those multiple rotational rotors are the same. The rods (25) are attached to each support shaft (24) in a skewered manner, so to speak. . By doing so, even if the band width dimension (W) of the adhesive sheet (M) changes in size, this This is because they can be handled well.

[0026] In this regard, in the figure, the push screw (28) is moved forward and backward from the radial direction of the rotating roll (25). so that the rotating roll (25) can be rotated integrally with the support shaft (24). Loosen the push screw (28) and rotate the rotating roll (25) from side to side. By sliding it in the horizontal direction and retightening the set screw (28), The mounting position of the rotating roll (25) is set so as to be adjustable.

[0027] However, by such sliding operation of the rotating roll (25), its supporting shaft (2 4), as long as the mounting position can be adjusted, the rotating roll (25) can be As long as it can be rotated by frictional contact with the roll support shaft (24) ) is fixedly installed on the equipment frame (21), and the rotating roll (25) is loosely attached to it. It is okay to wear a cloak freely.

[0028] In any case, a plurality of rotating rolls (25) are attached to each roll support shaft (24). When fitting, as suggested from the plan view of FIG. 7, the rotating roll (25) is An overall so-called staggered arrangement is formed between the adjacent front and rear support shafts (24). This changes the phase so that the leakage occurs throughout the adhesive sheet (M). It is determined so that moisture can be added without any need for moisture, which will be described later.

[0029] (29) is a device frame to support both left and right ends of each roll support shaft (24) described above. A pair of support plates integrally extended from the frame (21), (30) each support plate It is a spindle receiving long hole formed in the plate (29), and has a long and narrow opening along the vertical direction. are doing. (31) is an engagement cam piece that is also pivotally supported by each support plate (29), This is rotated by the manual operation handle (32) as indicated by the chain line in Figure 8. If so, the roll support shaft (24) is moved along the elongated hole (30) by the cam piece (31). It is designed so that it can be lifted away from the adhesive sheet (M). the Therefore, the unused rotating roll (25) is placed on the surface of the base paper (12) of the adhesive sheet (M). It can be evacuated upwards at will.

[0030] On the other hand, reference numeral (33) in FIG. 5 indicates a cover case in the device frame (21). The pump installed in the upper center of (23), (34) is the same as the pump (33). Fixed inside the cover case (23) to communicate with the lower water storage tank (22) It is a water supply pipe that is equipped with a circumferential surface of the above-mentioned rotating roll (25). A plurality of oriented water discharge nozzles (35) are attached and installed, and a water storage tank (22 ) The pump (33) sucks up the water from inside the nozzle (35) to a moderately small amount. It is designed so that it can be dropped in drops onto the rotating roll (25) in small amounts. (3 6) is a strainer attached to the lower end of the water supply pipe (34).

[0031] In that case, although details are omitted from the illustration, the water level in the water storage tank (22) is detected. and water can be appropriately replenished into the interior through a make-up water pipe (37). Then, the amount of water to be pumped from the tank (22) to the nozzle (35) is controlled by a valve, etc. , it is preferable to set it so that it can be adjusted.

[0032] As mentioned above, since water is dripped onto the rotating roll (25) from above, The water is transferred from the rotating roll (25) to the surface of the base paper (12) on the adhesive sheet (M). , and as the roll (25) rotates, it is wetted to a water-wiping state. This results in Moreover, multiple rotating rolls (25) are mounted on shafts in parallel. This makes it possible to evenly and uniformly apply water to the entire surface of the base paper (12). It will be possible to do so.

[0033] (38) rotates so that the water escapes from both left and right ends of the adhesive sheet (M) to the back side. This is a pair of left and right drainage guides to prevent the adhesive sheet (M) from getting stuck in the conveying direction. The frontmost rotating roll (25) in the An inwardly stretched state in which the width gradually becomes narrower toward the front, forming a V-shape in plan view. It is fixedly installed on the device frame (21). This allows the above water to It automatically presses toward the center of the adhesive sheet (M) and drains water at both left and right ends. It is now possible to do so.

[0034] This draining guide (38) is made of elastic material such as rubber or plastic, and It goes without saying that elastic contact with the surface of the base paper (12) on the receiving sheet (M) Nor. In particular, as suggested by Figures 6 and 7, the inward overhang length Do not set it so that the size (L) and the inclination angle (θ) of pushing toward the center can be adjusted. Even if the band width dimension (W) of the adhesive sheet (M) changes in size, it can be handled without any problem. It can be said that it is becoming more and more effective in that it can be treated.

[0035] The base paper ( 12) When the surface of the adhesive sheet (M) is wetted, the adhesive (11) of the adhesive sheet (M) will be applied to the wet area. ) will not stick to the mold and the so-called glue gushing phenomenon will be suppressed. Repeatedly cut out the adhesive sheet (M) using the blade die (16) in the position (B). However, there is a risk of prematurely reducing the cutting ability of the cutting edge or causing damage. There is no. The amount of moisture applied depends on the viscosity of the adhesive (11) used and the amount of leaching. It is necessary to keep the amount to an appropriate level, taking into consideration the relationship with the amount of However, as a guideline, as soon as the die cutting process is completed, it will naturally evaporate as soon as possible. It's good to have as much as you can store.

[0036] In addition, the addition of moisture eliminates static electricity and heat generation from the cutting edge. The service life of the blade (16) and adhesive sheet can be significantly improved. This also prevents positional deviations due to contact with (M), allowing for highly accurate punching. You will be able to obtain the print status.

[0037] Furthermore, as a countermeasure to the problem of the blade mold (16) rusting due to the addition of moisture, the above-mentioned storage method is recommended. A few percent of cation activator, ammonia, etc. is added to the water in the water tank (22). Alkalize the water by adding only a small amount of water, or by using distilled water. It can be prevented.

[0038] In particular, there may be soap, general household synthetic detergents, etc. in the water in the water storage tank (22). If only 1 to 2% of other surfactants are dissolved, that surfactant The surface tension of the water is lowered by this process, and a film of water is spread evenly over the surface of the base paper (12). As a result, printing ink and the above masking sheet ( 20) can be prevented from being repelled. In other words, masking This will not only protect the printed surface without pasting the sheets (20) together. In particular, warpage and elongation of the release paper (13) in the adhesive sheet (M) after printing. Deformation can also be effectively suppressed. I explained about water, but this Alternatively, hot water may be used as moisture and applied to the base paper (12) of the adhesive sheet (M). Of course.

[0039]

[Effect of the idea]

As described above, in the present invention, a release material is applied to the back side of the base paper (12) via the adhesive (11). While conveying the pressure-sensitive adhesive sheet (M) for die-cutting, which is made by polymerizing and integrating the paper pattern (13), , as a device (D) for adding moisture to the surface of the base paper (12). ) so that it rotates in elastic contact with the surface of A plurality of rotating rolls (25) mounted on shafts in a row, and the rotating rolls (25) Multiple water nozzles fixedly installed above the circumferential surface to drip water onto the circumferential surface. (35) and a circuit located at the frontmost side in the conveying direction of the adhesive sheet (M). It is located in front of the rolling roll (25) and is used to bombard both left and right ends of the base paper (12) from above. A pair of draining guides (38) that are brought into forceful contact with each other. The water dripping from the drain (35) is transferred to the base paper (12) by the rotating roll (25). Since it is set to automatically give a transition state to the surface, the conventional technique mentioned at the beginning It has the effect of completely solving technical problems.

[0040] In other words, the present invention directly applies the cutting edge to the cutting edge of the cutting die (16) in the die cutting device (B). It is not a device that adds moisture, but the adhesive sheet (M) is put into the die-cutting processing device (B). During the conveyance process, water is applied to the surface of the base paper (12) by the rotating roll (25). Since it is a material that imparts a The moisture imparting device (D) can be incorporated extremely easily into the manufacturing process of adhesive tapes, etc. It can be installed as needed, and is extremely effective in mass production and has great versatility.

[0041] Also, water is dripped from the water nozzle (35) onto the circumferential surface of the rotating roll (25). The moisture is removed by contact rotation between the rotating roll (25) and the base paper (12). Since it is designed to give a dispelling state that automatically transfers to the surface, its rotation Coupled with the fact that multiple rolls (25) are installed in parallel, the base paper (12 ) can be wetted evenly and with the appropriate amount of moisture. Therefore, there is no risk of providing resistance to the conveyance action of the adhesive sheet (M).

[0042] Furthermore, a rotary roll (25) facing the frontmost side in the conveying direction of the adhesive sheet (M) ) is in elastic contact with both left and right ends of the base paper (12) from above. Since a pair of draining guides (38) are provided, the rotating roll (25) Therefore, the moisture applied to the surface of the base paper (12) is released from both the left and right ends of the base paper (12). There is no risk of it accidentally going around to the back side.

[0043] In this regard, if water should get around from the front side of the base paper (12) to the back side, the die-cutting process In the next process of punching with the blade die (16) in the position (B), the blade die (16) When the receiving face plate is made of paper laid on the surface of a metal base as a so-called mount. In this case, the moisture that has entered the back surface penetrates into the mount, causing the mount to swell. As a result, the release paper (13) of the adhesive sheet (M) is separated by the blade mold (16). Even if the release paper (13) is torn to pieces, the original nature of the release paper (13) This leads to the disappearance of the important role. This kind of problem is solved by the above-mentioned draining guide (38 ), it can be completely prevented.

[0044] In particular, if the configuration of claim 2 is adopted, the band width dimension (W) of the adhesive sheet (M) Even if the surface changes in size, moisture can be applied to the entire surface without leaking, and the The taste also has the effect of increasing the versatility of the moisture imparting device (D).

[0045] Furthermore, if the configuration of claim 3 is adopted, the rotating roll (25) is used as the base paper (12). The above-mentioned printed matter and double-sided adhesive tape can be evacuated to a floating state from the surface of the Even if a moisture imparting device (D) is incorporated into the manufacturing process of the product, There is no need to remove or disassemble the product during the manufacturing process, and it can be used on printed matter or double-sided adhesive tape. It is also possible to use it for printing only. In other words, do not perform die cutting. In such cases, the previous moisture imparting action is not necessary, but in such cases, the above-mentioned rotation The roll (25) can be lifted and operated to keep it in its retracted state when not in use. This can be said to be extremely convenient in practice.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the manufacturing process of a label (printed material).

FIG. 2 is a plan view of the label that has been manufactured.

FIG. 3 is an enlarged cross-sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is an explanatory diagram showing the manufacturing process of a double-sided adhesive tape (non-printed material).

FIG. 5 is a side cross-sectional view showing the moisture imparting device during the manufacturing process.

FIG. 6 is a plan view of the moisture applicator.

FIG. 7 is a plan view of a modification corresponding to FIG. 6;

FIG. 8 is a partially enlarged side view showing a lifting operation state of the rotating roll.

FIG. 9 is a partially enlarged sectional view showing an extracted state of attachment of the rotating roll.

[Explanation of symbols]

(11) Adhesive (12) Base paper (13) Release paper (22) Water storage tank (24) Roll support shaft (25) Rotating roll (33) Pump (35) Water nozzle (38) Draining guide (B) Die cutting equipment (M) Adhesive sheet (D) Moisture adding device

Claims (3)

[Scope of utility model registration request] Claim 1: While transporting an adhesive sheet (M) for die-cutting processing, which is made by polymerizing and integrating a release paper (13) onto the back side of a base paper (12) via an adhesive (11), the base paper ( As a device (D) for adding moisture to the surface of the base paper (12),
2) A plurality of rotating rolls (25) that are mounted in parallel in front and back across the upper position so as to rotate in elastic contact with the surface of the rotating roll (25), and the circumference of the rotating roll (25). A plurality of water spray nozzles (35) are fixedly piped above the water spray nozzles (35) so as to drip water onto the surface, and a rotary roll (25) located in front of the rotary roll (25) located at the frontmost side in the conveyance direction of the adhesive sheet (M) is provided. and a pair of draining guides (38) that face resiliently in contact with both left and right ends of the base paper (12) from above, and the nozzle (35)
A device for applying moisture to a pressure-sensitive adhesive sheet for die-cutting processing, characterized in that the moisture dripping from the base paper (25) is applied automatically to the surface of the base paper (12) in a transferred state. 2. A plurality of roll support shafts (24) are horizontally suspended above the base paper (12) in a front and back parallel state, and a plurality of rotating rolls (24) are attached to each of the roll support shafts (24). 25) is fitted so that it can be slid and operated, and the roll support shaft (24) has an overall staggered phase change state between adjacent front and rear sides of the roll support shaft (24). Equipment for adding moisture to pressure-sensitive adhesive sheets for die-cutting processing. 3. A plurality of rotary rolls (25) are mounted above the base paper (12) in a front and rear parallel state, and by lifting and operating the roll support shaft (24), the rotary rolls (25) 2. The apparatus for adding moisture to a pressure-sensitive adhesive sheet for die-cutting according to claim 1, wherein the device is configured to allow the moisture to be retracted upward from the surface of the base paper (12).