KR102669347B1 - Eco-friendly film-free point adhesive tape and it's manufacturing method - Google Patents

Abstract

In the present invention, a plurality of protrusions 21 protruding at regular intervals are formed on the surface of a release film forming a roll wound around a paper tube with a certain width, and inner and outer silicon layers 12 and 13 are coated on both sides of the release film 11, respectively. , a deformed band 10 having a plurality of emboss formed on the back surface forming a groove 22 coaxial with the protrusion 21 by the pressing force of the embossing roll 20a; and
It is configured to include a point and adhesive layer 30 that is adhered to the space between the grooves 22 of the inner silicon layer 12 of the release band 10 forming the groove 22, and the point and adhesive layer has a separate It is an eco-friendly film-free film that is characterized by unwinding the release strip and the point/adhesive layer together into a roll of the same width or using it in a certain length without an adhesive film. The emboss is made up of a plurality of protrusions coaxial with the grooves on the release band to create a point/adhesive layer. It is a double-sided tape that is wound and unwound in an adhesive state and its manufacturing method.

Description

An eco-friendly film-free double-sided tape that is wound and unwound in a point/adhesive state by forming the emboss into a structure of multiple protrusions coaxial with the groove on the release band, and its manufacturing method {Eco-friendly film-free point adhesive tape and it's manufacturing method}

The present invention relates to an eco-friendly, film-free double-sided tape that is wound and unwound in a point-adhesive state by forming the emboss into a plurality of grooves and coaxial protrusion structures on the release strip, and a method of manufacturing the same.

Double-sided tape is used to attach a release paper to one side of the double-sided tape, remove the release paper, use the double-sided tape to fix it to the mounting base on one side, and attach a cover to the other side. For convenience of use, double-sided tape with a release paper attached is used. After wrapping it into a roll, unwrap it and cut it to the desired length.

In a conventional example, as shown in Figure 1, an adhesive film (2) is attached to a silicone-coated release paper (1) and wound in a roll shape, and the adhesive film (2) is an acrylic adhesive layer (4) on the bottom of the polyester film (3). A hot melt layer (5) is applied to the upper surface, and the release paper (1) is placed on the hot melt layer (5). An acrylic adhesive layer (4) is attached to the edge of the bag entrance, and the release paper (1) is separated and placed on the other side of the border. Use to attach the cover to the hot melt layer (5). However, in this method, polyester film (3) is used as an essential component of the adhesive film (2), which is a factor in increasing the cost, and the hot melt layer (5) and acrylic adhesive layer (4) are applied to both sides, respectively. Therefore, it is difficult to flatten when rolling into rolls and must be worked in unit roll form, requiring a large investment in manufacturing facilities.

Related prior technologies include Domestic Utility Model Registration No. 20-0309492 and Domestic Utility Model Registration No. 20-0176556.

The present invention seeks to solve this problem. The purpose of the present invention is to form a plurality of emboss in the form of a protrusion on the surface of the release band and a groove coaxial with the protrusion on the back side without using an adhesive film, and to apply an adhesive or adhesive to the surface where the groove is formed. When the layer is fixed and rolled into a roll so that the protrusions are on the surface, each protrusion is in point contact with other adhesive layers that are subsequently wound, so the adhesive force is weak and easily separated, making it easy to unwind from the roll. After unwinding, the back of the release band is The adhesive/adhesive layer is attached to the adhesive object, the release strip is completely separated from the adhesive/adhesive layer, and then a cover is attached to the exposed adhesive/adhesive layer to seal the entrance, so release is possible without a separate adhesive film using only the point/adhesive layer. It is an eco-friendly film-free material that allows both adhesion and adhesion to be performed at the same time. The purpose is to provide a double-sided tape that is wound and unwound in an adhesive/adhesive state by having the emboss formed into a plurality of grooves and coaxial protrusions on the release strip, as well as a manufacturing method thereof.

The purpose of the present invention is to form a plurality of emboss in the form of protrusions and grooves coaxial with the protrusions on the surface of the release band without using an adhesive film, attaching a point/adhesive layer to the surface where the grooves are formed, and forming the protrusions on the surface of the release band. The surface forming the point contacts the point/adhesive layer, making it easy to loosen, and the grooves on the back of the release band form a receiving space, so even if some of the point/adhesive layer melts or gathers, it is accommodated in the space of each groove and can be used without deforming the shape. The goal is to provide a double-sided tape that is wound and unwound in a point/adhesive state and a manufacturing method thereof by making it possible to use an eco-friendly film-free tape and having the emboss have a structure of multiple protrusions coaxial with grooves on the release band.

The purpose of the present invention is to form a plurality of embossings in the form of protrusions and grooves coaxial with the protrusions on the surface of the release band without using an adhesive film, attaching a point and adhesive layer to the groove surface, and protruding the protrusions on the surface of the release band. Since it is in point contact with the adhesive layer, it is easy to loosen, and the groove on the back of the release band forms a receiving space, so the adhesive strength is reduced by the receiving space, so the release band of the point and adhesive layer can be separated, and both sides of the release band are coated with silicone. Therefore, the shape of the protrusions and grooves is maintained without deformation, improving durability, and since a separate base film for adhesive application is not used, the thickness is relatively thin and the length rolled per unit roll is longer, making it an eco-friendly non-film embossed film that allows users to use it for a long time. The purpose is to provide a double-sided tape that is wound and unwound in a point-and-adhesive state by forming a release band with a plurality of grooves and a coaxial protrusion structure, and a method of manufacturing the same.

For this purpose, the present invention forms a plurality of protrusions protruding at regular intervals on the surface of a strip of a roll wound at a certain width, inner and outer silicone layers are coated on both sides of the release film, and the protrusions and protrusions are formed on the back side by the pressing force of the embossing roll. A heterogeneous band with multiple emboss forming coaxial grooves; and

It is configured to include a point/adhesive layer that is adhered to the space between the grooves 22 of the inner silicone layer of the release band forming the groove, and the point/adhesive layer includes the release band and the point/adhesive layer together without a separate adhesive film. It is an eco-friendly non-film that can be unwound in a roll of the same width or used as a certain length. The purpose is to provide a double-sided tape and a manufacturing method thereof that are wound and unwound in a point/adhesive state by forming the emboss into a structure of multiple grooves and coaxial protrusions on the release band.

The present invention forms protrusions on the surface of the release band without using an adhesive film, and forms a plurality of emboss in the form of grooves coaxial with the protrusions on the back side, and attaches a point and adhesive layer to the surface where the grooves are formed, so that the protrusions are on the surface. When wound on a roll, each protrusion is in point contact with another point/adhesive layer that is subsequently wound, so the adhesive force is weak and is easily separated, making it easy to unwind from the roll. After unwinding, the point/adhesive layer attached to the back of the release strip is attached. ·Attach to the adhesive object, separate all release strips from the adhesive/adhesive layer, and then attach the cover of the bag to be sealed to the exposed adhesive/adhesive layer to seal the entrance. Thus, release and adhesive are created with only the adhesive/adhesive layer without the need for a separate adhesive film. ·Enables adhesion to be performed simultaneously.

The present invention forms protrusions on the surface of the release band without using an adhesive film, and forms a plurality of emboss in the form of grooves coaxial with the protrusions on the back side, adheres a point and adhesive layer to the groove formation surface, and forms protrusions on the surface of the release band. The surface is in point contact with the point/adhesive layer, so it is easy to loosen, and the back of the release band has multiple grooves to form a receiving space, so even if the point/adhesive layer partially melts or is pushed out, it is accommodated in the space of the groove without deforming the shape. Make it usable.

In the present invention, without using an adhesive film, a plurality of emboss in the form of a protrusion and a groove are formed on the surface of the release band, and an adhesive/adhesive layer is attached to the surface of the groove formed at an area of the same width as the release band, and the surface of the release band is formed. The protrusions are in point contact with the adhesive layer, making them easy to loosen, and the grooves on the back of the release band form a receiving space, so the adhesive force decreases as much as the receiving space, allowing the release band separation of the point and adhesive layer, and silicone on both sides of the release band. Because each coating is applied, the protrusions are easy to wrap and separate through point contact, and the shape of the point/adhesive layer attached to the groove is maintained without deformation, improving durability. Since a separate adhesive film is not used, the thickness is relatively thin and the unit thickness is reduced. The length of each roll is longer, allowing users to use it for a long time.

In the present invention, without using an adhesive film, protrusions are formed on the surface of the release band and a plurality of emboss in the form of grooves coaxial with the protrusions are formed on the back side, an adhesive/adhesive layer is adhered to the groove formation surface, and the protrusions on the surface of the release band are points. ·It is easy to loosen because it is in point contact with the adhesive layer, and the groove on the back of the release band forms a receiving space, so the adhesive force is reduced by the receiving space, so the release band of the point and adhesive layers can be separated, and both sides of the release band are coated with silicone. Therefore, the protrusions are easy to wrap and separate through point contact, and the shape of the adhesive layer attached to the groove is maintained without deformation, so after attaching the adhesive layer to the release strip in a strip shape at the same width, the adhesive layer is placed between the adhesive layers. The space part of the paper pipe is cut to the same width and connected in the longitudinal direction, and then the release strip with the adhesive layer attached thereto can be cut to the same paper pipe width and wound around the corresponding paper pipe at the same time, simplifying the manufacturing process.

1 is a cross-sectional configuration diagram of a conventional double-sided tape;
Figure 2 is a cross-sectional configuration diagram of the double-sided tape of the present invention;
Figure 3 is an explanatory diagram showing the unwinding state of the wound roll of the present invention;
Figure 4 is an enlarged cross-sectional view of the main part of the present invention;
Figure 5 is a front view showing the manufacturing process of the present invention;
Figure 6 is a plan view of Figure 5.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The present invention forms a plurality of protrusions (21) protruding at regular intervals on the surface of the release film (11) of a release film roll wound on a paper tube at a certain width, and inner and outer silicon layers (12, 13) are formed on both sides of the release film (11). Each of these is coated, and the rear surface is formed with a groove 22 coaxial with the protrusion 21 by the pressing force of the embossing roll 20a, a release band 10; and

Configured to include a point and adhesive layer 30 that is adhered to the space between the grooves 22 at the inner silicon layer 12 of the release band 10 forming the groove 22;

The point/adhesive layer 30 is an eco-friendly film-free emboss point/adhesive that unwinds the release strip 10 and the point/adhesive layer 30 together in a roll at the same width area without a separate adhesive film or uses it as a certain length. It's double-sided tape. The point and adhesive in the present invention include, but are not limited to, acrylic and hot melt-based bonds.

The protrusion 21 has a shape selected from a circular dome (including a pseudo-circular dome) or a polygonal dome, and protrudes to a height of 2 to 5 times the thickness of the part excluding the protrusion 21 of the deformed band 10. good night. This is to maintain adhesion when rolled without a separate adhesive film due to point adhesion with the adhesive layer 30, and to easily separate and unwind from the roll without an adhesive film due to point adhesion with the protrusion 21 when unrolling. After unrolling it to a certain length, the surface of the point and adhesive layer 30 is attached to the edge of the bag, and then the release band 10 is separated. In this case, the point and adhesive layer ( 30), the adhesive strength is relatively weak, so the release band 10 is easily separated without an adhesive film, and the bag cover side is attached to the separated adhesive layer 30 and sealed.

The release band 10 coated on both sides to form inner and outer silicon layers 12 and 13 is such that the thickness of the outer silicon layer 13 forming the protrusion 21 is the inner silicon layer 12 forming the groove 22. It is coated 2 to 3 times thicker than the thickness of. This ensures that when the finished tape is unwrapped and used, the adhesive force is maintained with the point/adhesive layer 30 attached to the periphery of the groove 22 of the release band 10, and when the finished tape is unrolled and used, the point contact of the protrusion 21 is maintained. This is to provide support that can be easily separated from the point and adhesive layer 30 in the lower part (b) of Figure 4 even when the release band 10 and the point and adhesive layer 30 are wound together to the same width.

The manufacturing method of the present invention configured as described above will be described for each process with reference to FIGS. 5 and 6.

Unwrap the release film (11) wound on the release film roll and coat both sides with silicone, coating to form an inner silicone layer (12) through the inner silicone coating roll and an outer silicone layer (13) through the outer silicone coating roll. A silicone coating process (S10) of manufacturing a silicone-coated release film (11') based on the release strip (10) by rapid heating and curing in a drying chamber (15) at ℃ to 200℃;

The embossing roll 20a and the support roll 20b form the embossing roll part 20 so that the surface (bottom) of the silicone coating release film 11' has protrusions 21 and the back surface has a plurality of concave grooves 22 formed in a coaxial form. Embossing process (S20) to obtain release paper (10) by passing through;

A point/adhesive with a width smaller than the width of the release paper, which forms the slit width of the release paper that has undergone the embossing process (S20), is dropped from the point/adhesive manufacturing unit 31 to the applicator hole 32 to form a point/adhesive layer 30 of a certain width. Point and adhesive application process (S30) to apply this coating;

A cutting process (S40) of simultaneously cutting the point/adhesive layer 30 and the release band 10 between the application widths of the point/adhesive layer 30 so that they are separated into strips of the same width with a cutting blade 35;

In the cutting process (S40), the eco-friendly film-free embossed point and adhesive double-sided tape, which consists of a release band (10) and a point and adhesive layer (30) cut into strips and separated into strips, is rotated on the same axis as the paper tube cut to the same width, At the same time, it is performed sequentially, including the winding process (S50) to wind each unit branch pipe.

The manufacturing characteristics of double-sided tape manufactured using this manufacturing process are:

The thickness of the outer silicone layer 13 is 2 to 3 times thicker than the thickness of the inner silicone layer 12 of the release strip 10, so that when the tape is unrolled, the point and adhesive are attached around the grooves of the release paper and on the protruding surfaces. It acts to easily separate from the wrapped adhesive/adhesive layer. This weakens the adhesive strength by adhering to the existing adhesive layer 30 in a point/contact state so that it can be easily released on the roll without using a separate adhesive film.

In the present invention, when the silicone coating release film 11' that has passed through the embossing roll unit 20 shown in FIG. 5 is wound in the winding process (S50) after the cutting process (S40), the surface (lower surface) has the protrusions (21) as shown in FIG. ) forms a point/adhesion with another point/adhesive layer 30, and the back side (upper surface) forms a groove 22, so the point/adhesive layer 30 applied to the back side is used in the point/adhesive manufacturing 31. The adhesive liquid falls through the application hole 32, and the dropped adhesive is applied at a certain width as shown in FIG. 6. However, if the applied adhesive or adhesive increases due to partial clogging or wear of the application hole 32, the amount passing through the application hole 32 is not constant, and thus it may tilt in the width direction.

In the present invention, the inner silicone layer 12, which is the corresponding part applied to form the point and adhesive layer 30, forms a groove 22 in the area of the coated release paper, and a plurality of grooves 22 are formed at regular intervals, so that the point and adhesive layer 30 are formed. Even if an uneven thickness of the adhesive layer 30 occurs, the uneven part is absorbed in the groove 22 to absorb the uneven thickness, and the emboss of the groove 22 and the protrusion 21 are formed coaxially and uniformly in the width direction or Since it absorbs unevenness in the longitudinal direction, the state of the wound roll absorbs fluctuations caused by external forces and functions to maintain safe winding properties.

In the present invention, as shown in Figures 5 and 6, the point and adhesive layer 30 is cut into a strip at the same time with a cutting blade 35 to the same width so that the release strip 10 is wrapped integrally around the release paper, and the paper tube wrapped around it is also strip-shaped. By using cut tubes, they can be wound simultaneously on a single rotating shaft, making branch winding easy.

In the past, the paper pipes could not be wound by turning them on the same axis because the thickness and width of the adhesive layer were not constant, so they could not be wound simultaneously. One group of paper pipes was pulled from below to be wound, and another group of paper pipes was pulled upward to separate the release paper into the top and bottom. There was the inconvenience of having to roll each branch with separate tension.
In the present invention, the thickness unevenness and winding fluctuations of the adhesive layer are absorbed in the area around the groove of the release band having a groove and protrusion structure (part (a) in Figure 4) to maintain stable wrapping and adhesion, and the glue In this case, even if the release band 10 and the point/adhesive layer 30 are wound to the same width, they are easily separated from the point/adhesive layer (part (b) of Figure 4) by point contact on the protrusions, so that the same band It was designed so that it can be wound simultaneously on separate branch pipes, making it simple to construct and convenient to use.

In the present invention, as shown in Figures 5 and 6, a separate adhesive film is not used and it becomes thinner, so the wound length can be increased compared to when using an adhesive film, which means that the wound length of the double-sided tape of the present invention is the same diameter as the conventional double-sided tape. It is economical as it extends the length by 30 to 50% compared to the coiled state.

10; release band 11; release film 11'; silicone coated release film 12; inner silicone layer 13; outer silicone layer 15; drying chamber 20; embossing roll part 20a; embossing roll 20b; support roll 21; protrusion 22; groove 30; point ·Adhesive layer 31; point/adhesive manufacturing 32; applicator S10; silicone coating process S20; embossing process S30; point/adhesive application process S40; cutting process S50; winding process

Claims (4)

The surface of the release film (11), which forms a roll wound around a paper tube with a certain width, is formed with a plurality of protrusions (21) protruding at regular intervals, and inner and outer silicon layers (12 and 13) are coated on both sides of the release film (11), respectively. , a deformed band 10 having a plurality of emboss formed on the back surface forming a groove 22 coaxial with the protrusion 21 by the pressing force of the embossing roll 20a; and
Configured to include a point and adhesive layer 30 that is adhered to the space between the grooves 22 at the inner silicon layer 12 of the release band 10 forming the groove 22;
The protrusion 21 has a shape selected from a circular dome, a quasi-circular dome, or a polygonal dome, and protrudes to a height of 2 to 5 times the thickness of the part of the irregular band 10 excluding the protrusion 21;
The adhesive/adhesive layer 30 is an eco-friendly non-film characterized by unwinding the release strip 10 and the adhesive/adhesive layer 30 together into a roll of the same width or using it as a certain length without a separate adhesive film. A double-sided tape that is wound and unwound in a point-adhesive state with the embossing forming a plurality of protrusions coaxial with the grooves on the release strip.
delete According to claim 1, wherein the release band (10) is coated on both sides to form inner and outer silicon layers (12, 13), the thickness of the outer silicon layer (13) forming the protrusion (21) is coaxial with the protrusion (21). It is an eco-friendly non-film characterized by being coated 2 to 3 times thicker than the thickness of the internal silicon layer 12 forming the groove 22, and the emboss is formed in a structure of multiple protrusions coaxial with the groove on the release band, so that it is in a point and adhesive state. Double-sided tape that is wound and unwound.
A silicone coating process (S10) of manufacturing a silicone-coated release film (11') coated with silicone on both sides of the release film (11) and heat-cured using a release paper base;
The embossing roll 20a of the embossing roll part 20 is formed so that the surface (bottom) of the silicone coating release film 11' has a plurality of protrusions 21 and the back surface has a plurality of grooves 22 coaxial with the protrusions 21. An embossing process (S20) in which the emboss is formed by passing it through;
A point/adhesive application process (S30) of applying the point/adhesive layer 30 in a strip shape through the applicator hole 32 to form a point/adhesive layer 30 smaller than the width of the release band at the slit position between the grooves 22 by the embossing process (S20);
A cutting process (S40) in which the area between the application widths of the adhesive layer (30) and the part of the deformed band are simultaneously cut into strips of the same width with a cutting blade (35); and
Eco-friendly film-free embossed point and adhesive double-sided tape made of a release band (10) and a point and adhesive layer (30) cut in the cutting process (S40) and separated into strips of the same width, on the same axis as the paper tube cut to the same width. It is an eco-friendly film-free film that is performed sequentially, including the winding process (S50) of rotating and winding each unit paper tube at the same time. It is a double-sided tape that is wound and unwound in a point and adhesive state by forming a plurality of embossed structures with grooves and coaxial protrusions on the release band. Manufacturing method.

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