KR20240031580A - Eco-friendly film-free point adhesive tape and it's manufacturing method - Google Patents

Abstract

In the present invention, inner and outer silicone layers 12 and 13 are coated on both sides of the release film 11 to form a plurality of protrusions 21 protruding at regular intervals on the surface of the release film forming a roll wound around a paper tube with a certain width, On the back side, a deformed band (10) formed with a groove (22) at a position corresponding to the protrusion (21); and
It is configured to include a point/adhesive layer 30 that is adhered to the inner silicon layer 12 of the release film 11 forming the groove 22, and the point/adhesive layer includes a release band and a point without a separate adhesive film. ·Eco-friendly film-free embossed point/adhesive double-sided tape and its manufacturing method, characterized by unwinding the adhesive layer together in a roll or using it in a certain length.

Description

Eco-friendly film-free embossed point adhesive double-sided tape 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 embossed and adhesive double-sided tape and a method of manufacturing the same.

Double-sided tape is used to attach release paper to one side of the double-sided tape, peel off the release paper, use 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 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 FIG. 1, an adhesive film (2) is attached to a silicone-coated release paper (1) and wound in the form of a roll, and the adhesive film (2) is an acrylic adhesive layer (4) on the bottom of the polyester film (3). A hot melt adhesive layer (5) is applied to the upper surface, and the release paper (1) is placed on the hot melt adhesive layer (5). An acrylic adhesive layer (4) is attached to the edge of the bag entrance, and the release paper (1) is separated to create a border. Use the other side cover to attach it to the hot melt adhesive layer (5). However, in this method, the 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 adhesive layer (5) and the acrylic adhesive layer (4) are placed on both sides, respectively. Since it is applied, it is difficult to flatten when rolled into a roll, so it 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 protrusions and grooves on the back surface of the release band without using an adhesive film, and to fix the adhesive layer on the surface where the grooves are formed. , when rolled on a roll so that the protrusions are on the surface, each protrusion is in point contact with another adhesive layer that is subsequently wound, so the adhesive force is weak and easily separated, making it easy to unwind from the roll. After unwinding, the adhesive points on the back of the release band are easily released. The adhesive layer is separated from the release strip and 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 there is no need for a separate adhesive film with only the adhesive/adhesive layer. The aim is to provide an eco-friendly film-free embossed adhesive double-sided tape that enables release and adhesion at the same time, and a manufacturing method thereof.

The purpose of the present invention is to form a plurality of emboss in the form of protrusions and grooves on the back side of the release band without using an adhesive film, attaching a point and adhesive layer to the surface where the grooves are formed, and forming 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 grooves on the back of the release band form a receiving space, so even if the hot melt adhesive layer partially melts or gathers, it is accommodated in the space of each groove and can be used without deforming the shape. The purpose is to provide film embossed point/adhesive double-sided tape and its manufacturing method.

The purpose of the present invention is to form a plurality of emboss in the form of protrusions and grooves on the back surface of the release band without using an adhesive film, and to adhere a point and adhesive layer to the groove surface, and the protrusions on the surface of the release band are attached to the point and adhesive layer. Since it is in point contact with the release band, it is easy to loosen, and the groove on the back of the release band forms a receiving space, making it possible to separate the release band from the point and adhesive layer. Since both sides of the release band are coated with silicone, the shape of the protrusions and grooves is maintained without deformation. The goal is to provide an eco-friendly film-free embossed and adhesive double-sided tape and its manufacturing method that improves durability and does not use a separate adhesive film, making it relatively thinner and lengthening the length per unit roll, allowing users to use it for a long time.

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 an emboss forming a groove corresponding to the protrusions is formed on the back side. belt; and

Provides an eco-friendly film-free embossed point and adhesive double-sided tape that is configured to include a point and adhesive layer that adheres to the inner silicone layer of the release film that forms the groove, and is unwound into a roll or used as a certain length, and a manufacturing method thereof. That's what I'm trying to do.

In the present invention, without using an adhesive film, protrusions are formed on the surface of the release band and a number of emboss in the form of grooves are formed on the back side, and a point and adhesive layer is adhered to the surface where the grooves are formed, and rolled into a roll so that the protrusions are on the surface. Since the angles and protrusions are in point contact with other point and adhesive layers that are subsequently wound, the adhesive force is weak and they are easily separated, making it easy to unwind on the roll. After unwinding, the point and adhesive layer on the back of the release band is separated from the release band and the point is released. ·Attach it to the adhesive object, separate all release strips from the adhesive layer, and then attach the cover of the bag to be sealed to the exposed adhesive layer to seal the entrance. This allows for release and adhesive release without the need for a separate adhesive film with only the adhesive layer. ·Enables adhesion to be performed simultaneously.

In the present invention, without using an adhesive film, protrusions are formed on the surface of the release band and a number of emboss in the form of grooves are formed on the back side, and an adhesive and adhesive layer are attached to the groove-shaped surface, and the surface forming the protrusions on the surface of the release band is made of dots and grooves. Since it is in point contact with the adhesive layer, it is easy to loosen, and the back of the release band has multiple grooves to form a receiving space, so even if some of the point/adhesive layer melts or gathers, it is accommodated in the groove space and can be used without deforming the shape. .

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 and adhesive layer are adhered to the surface where the groove is formed, and the protrusions on the surface of the release strip are combined with a adhesive and adhesive layer. Because it is in point contact, it is easy to unwind, and the groove on the back of the release band forms a receiving space, allowing the release band to be separated from the point and adhesive layer. Both sides of the release band are coated with silicone, so the protrusions are easy to wrap and separate through point contact. In addition, the shape of the adhesive layer attached to the groove is maintained without deformation, improving durability, and since a separate adhesive film is not used, the thickness is relatively thin and the length rolled per unit roll is increased, allowing users to use it for a long time.

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 and adhesive layer are adhered to the surface where the groove is formed, and the protrusions on the surface of the release strip are combined with a adhesive and adhesive layer. Because it is in point contact, it is easy to unwind, and the groove on the back of the release band forms a receiving space, allowing the release band to be separated from the point and adhesive layer. Both sides of the release band are coated with silicone, so the protrusions are easy to wrap and separate through point contact. Since the shape of the point/adhesive layer adhered to the groove is maintained without deformation, the point/adhesive layer is adhered to the release strip in the form of a strip, then the space between the point/adhesive layers is cut, and the paper pipe is also cut to the same width. After connecting in one direction, the release strip with the point and adhesive layer 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 winding 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 top view of Figure 5.

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

The present invention provides inner and outer silicon layers (12, 13) on both sides of the release film (11) to form 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. It is coated with a deformed band (10) formed on the back surface with a groove (22) at a position corresponding to the protrusion (21); and

Configured to include a point and adhesive layer 30 that is adhered to the inner silicon layer 12 of the release film 11 forming the groove 22;

The point/adhesive layer 30 is an eco-friendly film-free embossed point/adhesive double-sided tape that is used by unwinding the release strip 10 and the point/adhesive layer 30 together into a roll without a separate adhesive film or using a certain length. 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 preferably protrudes 2 to 5 times the thickness of the deformed band 10. This is to maintain adhesion when rolled up without a separate adhesive film through point adhesion with the adhesive layer 30, and to allow it to be easily separated from the roll and unrolled without an adhesive film due to point adhesion with the protrusion 21 when unwinding. The surface of the point/adhesive layer 30 is attached to the edge of the bag after unrolling it to a certain length, and then the release band 10 is separated. In this case, the point/adhesive layer 30 is separated by the groove 22 of the release band 10. ) is relatively weak, so the release strip 10 is separated without an adhesive film, and the bag cover side is attached to the remaining adhesive/adhesive layer 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 is to fundamentally prevent the adhesive/adhesive from escaping onto the protruding surface rather than sticking to the groove surface of the release paper when the finished tape is unraveled and used.

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 coating release film (11') based on release paper (10) by rapid curing in a drying chamber (15) at a temperature of 200°C to 200°C;

The surface (bottom) of the silicone coating release film (11') passes between the embossing roll (20a) and the backing roll (20b) forming the embossing roll part (20) so that the protruding part (21) is formed on the surface (bottom) and the rear surface is formed with a plurality of concave grooves (22) at the same time. Embossing process (S20) to obtain release paper (10);

A point/adhesive material 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) applied to achieve;

A cutting process (S40) in which the part of the deformed band 10 between the application widths of the adhesive layer 30 is simultaneously cut into strips with a cutting blade 35;

In the cutting process (S40), the eco-friendly film-free embossed point/adhesive double-sided tape is cut into strips and consists of a release band (10) and a point/adhesive layer (30). The paper tube row cut to the width of the tape is rotated on the same axis to simultaneously cut each side. It is performed sequentially, including the winding process (S40) of winding 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 film 11, so that when the tape is released, the adhesive does not stick to the grooves of the release paper but sticks to the protruding surface. The phenomenon of separation is fundamentally prevented, and the adhesion is weakened by adhering in a point/contact state with the point/adhesive layer 30 so that it can be easily released on the roll without using a separate adhesive film.

In the present invention, the surface (lower surface) of the silicone-coated release film 11 that has passed through the embossing roll part 20 forms a point/adhesion with another adhesive layer 30 at the protrusion 21, and the back surface (upper surface) is Since the groove 22 is formed, the hot melt adhesive of the point/adhesive product 31 applied to the back side falls through the application hole 32, and the dropped point/adhesive agent is applied at a certain width as shown in FIG. However, if the applied adhesive or adhesive increases due to partial blockage or wear of the application hole 32, cases may occur in which the amount passing through the application hole 32 is not constant or is inclined in the width direction.

In the present invention, a groove portion 22 is formed in the area of the release paper coated with the inner silicone layer 12, which is the corresponding portion to which the point and adhesive layer 30 is applied, and a plurality of grooves 22 are formed at regular intervals to form a point and adhesive layer ( Even if the thickness unevenness of 30) occurs, the uneven part is absorbed by the groove 22, so the thickness unevenness is absorbed, and the emboss of the groove 22 and the protrusion 21 absorb the unevenness in the width or longitudinal direction, so the wound roll The condition absorbs external forces and functions to maintain safe wrapping properties.

In the present invention, as shown in Figures 5 and 6, the point and adhesive layer 30 is wrapped around the release strip 10 and simultaneously cut into strips with a cutting blade 35, and the paper tube wrapped around it is also cut into strips. Since the coils can be wound simultaneously on a single rotating shaft, winding paper tubes becomes 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 an inconvenience in winding each branch with separate tension, but the present invention absorbs the thickness unevenness and winding deviation of the adhesive layer in a release band with a groove and protrusion structure to enable stable winding. It was designed so that it can be wound simultaneously on separate branch pipes in the same row, 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, so the wound length can be reduced by the amount of adhesive film used, 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 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; inspection 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)

Inner and outer silicon layers 12 and 13 are coated on both sides of the release film 11 to form a plurality of protrusions 21 protruding at regular intervals on the surface of the release film 11, which forms a roll wound around a paper tube with a certain width. On the back side, a deformed band (10) formed with a groove (22) at a position corresponding to the protrusion (21); and
It is configured to include a point/adhesive layer 30 that is adhered to the inner silicon layer 12 of the release film 11 forming the groove 22, and the point/adhesive layer 30 is formed without a separate adhesive film. An eco-friendly film-free embossed point/adhesive double-sided tape, characterized in that the band (10) and the point/adhesive layer (30) are rolled together into a roll or used as a certain length.
The eco-friendly film-free emboss according to claim 1, wherein the protrusion (21) has a shape selected from a circular dome, a quasi-circular dome, or a polygonal dome, and protrudes 2 to 5 times the thickness of the deformed band (10). Point and adhesive double-sided tape.
According to claim 1, wherein the release band (10) is coated on both sides to form inner and outer silicon layers (12, 13), and the thickness of the outer silicon layer (13) forming the protrusion (21) is greater than the thickness of the inner silicon layer (13) forming the groove (22). An eco-friendly film-free embossed point/adhesive double-sided tape characterized by being coated 2 to 3 times thicker than the thickness of the silicone layer (12).
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 cured using a release paper base;
The surface (bottom) of the silicone coated release film 11' is an embossing process that produces release paper by passing it through the embossing roll 20a of the embossing roll part 20 so that the protrusions 21 are formed on the surface and the back side is formed with a plurality of concave grooves 22 at the same time. Process (S20);
A point/adhesive application process (S30) of applying a point/adhesive (30) smaller than the width of the release strip between the slit widths of the release paper that has undergone the embossing process;
A cutting process (S40) of simultaneously cutting the release paper portion between the application widths of the adhesive layer (30) into strip-shaped release bands (10);
The eco-friendly film-free embossed point/adhesive double-sided tape is cut into strips and consists of a release band (10) and a point/adhesive layer (30). The paper tube rows cut to the width of the tape are rotated on the same axis so that each unit paper tube is wound at the same time. A method of manufacturing eco-friendly film-free embossed point and adhesive double-sided tape performed sequentially, including the winding process (S40).

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