KR102504030B1 - Water soluble adhesive tape capable of splicing - Google Patents

Abstract

The present invention relates to a double-sided separable water dissociable bonding tape which comprises: a base paper (10) made of paper; a main adhesive layer (20) implemented by applying and drying a liquid adhesive composition on one side of the base paper (10); a sub-adhesive layer (30) implemented by applying and drying the liquid adhesive composition on the other side of the base paper (10); and a release paper (40) releasably adhered to the main adhesive layer (20) and releasably adhered to the sub-adhesive layer (30) when the base paper (10) is wound into a roll shape. In addition, the main adhesive layer (20) and the sub-adhesive layer (30) have water dissociation properties which are water-soluble properties. Accordingly, an adherend such as a paper sheet can be adhered to a paper base material (P), and the adherend can be easily separated from the paper base material (P).

Description

Double-sided detachable water dissociation splicing tape {Water soluble adhesive tape capable of splicing}

The present invention relates to a double-sided removable water-dissociable joint tape capable of being separated from both sides, and more particularly, to a double-sided removable water-dissociable joint tape that can be recycled through water dissociation.

For example, in the paper manufacturing process for producing paper, continuously manufactured paper sheets are stored and distributed in the form of paper rolls wound on paper tubes, and are transported to various printing factories such as newspapers, books, or advertisements to manufacture various printed materials. used to do At this time, the continuously produced paper sheet is wound around the paper tube in the form of a roll. To this end, the front end of the paper sheet was attached to the paper tube using an adhesive tape made of an adhesive layer applied to a resin film.

On the other hand, after the paper sheet is used up, the paper tube remains as waste. At this time, since the adhesive tape used to connect the paper sheets is attached to the paper tube waste, the paper tube cannot be recycled into pulp due to the adhesive tape, so it is disposed of by landfill or incineration.

However, since adhesive tapes made of resin paper do not biodegrade in the ground, landfilling is strictly restricted by recent environmental laws, and accordingly, most of the paper pipe wastes to which the adhesive tapes are attached are disposed of by incineration.

The adhesive tape attached to such a branch pipe pollutes the air by generating many harmful substances during the incineration process, and substances such as dioxin are representative carcinogens, threatening the health of many people.

In addition, since the adhesive tape has strong adhesive strength and strongly attaches the paper sheet to the paper core, it was not easy to separate the paper sheet from the paper core in the final process of printing, etc. There was a concern that the initial position of the paper sheet would be distorted, resulting in defects during the printing process.

The present invention was created to solve the above problems, and can adhere an adherend made of paper to a base material made of paper, easily separate the adherend from the base material and at the same time not leave residue on the base material. It is an object of the present invention to provide a double-sided detachable water-dissociable joint tape.

Another object of the present invention is to provide a double-sided detachable water-dissociable bonding tape having a main adhesive layer and a sub-adhesive layer that are water-dissociated through a simple process of stirring in water.

In order to achieve the above object, the double-sided detachable water-dissociable joint tape according to the present invention includes a base paper 10 made of paper; A main adhesive layer 20 realized by applying and drying a liquid adhesive composition on one side of the base paper 10; a sub-adhesive layer 30 realized by applying and drying a liquid adhesive composition on the other side of the base paper 10; A release paper 40 that is releasably adhered to the main adhesive layer 20 and is releasably adhered to the sub adhesive layer 30 when the base paper 10 is wound in a roll form, The main adhesive layer 20 and the sub adhesive layer 30 are characterized in that they have water-soluble water dissociation properties.

In the present invention, the adhesive composition is water, butyl-2-propinoate (Butyl-2-propenoate), glycidyl methacrylate (Glycidyl methacrylate), polyethylene glycol (Poly Ethylene glycol), 2-mercapto Contains 2-Mercaptoethanol, 2-Methylpropane-2-peroxol, polymerization initiator, emulsifier, reducing agent, and preservative.

In the present invention, the adhesive composition is 100 parts by weight of water, 52 to 68 parts by weight of butyl-2-propinoate, 1 to 3 parts by weight of the glycidyl methacrylate, and 2 to 6 parts by weight of the polyethylene glycol parts by weight, 0.2 to 1 part by weight of the 2-mercaptoethanol, 0.08 to 0.2 parts by weight of the 2-methylpropane-2-peroxol, 0.12 to 2 parts by weight of the polymerization initiator, and 1.4 to 2 parts by weight of the emulsifier and 0.12 to 0.2 parts by weight of the reducing agent and 0.4 to 1 part by weight of the preservative.

In the present invention, the main adhesive layer 20 is implemented by applying and drying an adhesive composition on one side of the base paper 10 surface-treated to swell and expose the pulp tissue, and the sub adhesive layer 30 It is implemented by applying and drying the adhesive composition on the other side of the surface-treated base paper 10 so that the pulp tissue is swollen and exposed.

In the present invention, the main adhesive layer 20 is composed of a main impregnated layer 21 impregnated on one surface of the base paper 10 and a main exposed layer 22 exposed to the outside; The sub adhesive layer 30 is composed of a sub impregnated layer 31 impregnated on the other surface of the base paper 10 and a sub exposed layer 32 exposed to the outside.

In the present invention, the impregnation depth (D1) of the main impregnation layer 21 ranges from 1/6 to 1/3 of the thickness of the base paper 10, and the impregnation depth (D2) of the sub-impregnation layer 31 ) is in the range of 1/6 to 1/3 of the thickness of the base paper 10.

In the present invention, the sub-adhesive layer 30 has a strip shape extending along the base paper 10, and the unit area of the sub-adhesive layer 30 is 1 unit area of the main adhesive layer 20. /2 or less.

In the present invention, the release paper 40 includes first and second release papers 42 and 43 partitioned by a separation line 41, and the width of the first release paper 42 is the second release paper 43 ) is less than the width of

On the other hand, the double-sided removable water dissociable bonding tape according to the present invention forms the main adhesive layer 20 and the sub adhesive layer 30 having an adhesive component on the base paper 10, so that an adherend such as a paper sheet can be made of paper. It can be adhered to the base material P, and conversely, the adherend can be easily separated from the paper base material P.

In addition, since the main adhesive layer 20 and the sub adhesive layer 30 are dissociated with water, the base paper 10 and the main adhesive layer 20 are bonded base material waste is stirred in water in a simple process of the main adhesive layer 20. It can be water dissociated, and accordingly, the base material and the base paper 10 remain as high-purity pulp, enabling effective resource recycling.

1 is a perspective view of a double-sided detachable water dissociable joint tape according to the present invention;
Figure 2 is a perspective view for explaining a sub-adhesive layer formed on the back surface of the bonding tape of Figure 1;
3 is a cross-sectional view taken along line III-III in FIG. 1;
4 is a view for explaining the configuration of a main adhesive layer and a sub adhesive layer formed on both sides of the base paper of FIG. 1;
FIG. 5 is a view for explaining that the base paper is separated when a peeling force is applied in a mutually widening direction to a paper base material and an adherend attached to each of the main adhesive layer and the sub adhesive layer of FIG. 4;
5 is a cross-sectional view for explaining a release guide groove formed in the release paper of FIG. 1;

Hereinafter, a double-sided detachable water-dissociable joint tape according to the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, what is described as "above" or "above" may include not only what is directly on top of contact but also what is on top of non-contact. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. Terms are used only to distinguish one component from another. Singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, when a certain component is said to "include", this means that it may further include other components without excluding other components unless otherwise stated. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation. When an embodiment is otherwise embodied, a specific process sequence may be performed differently from the described sequence. For example, two processes described in succession may be performed substantially simultaneously, or may proceed in an order reverse to the order described.

1 is a perspective view of a double-sided, water-dissociable joint tape according to the present invention, FIG. 2 is a perspective view for explaining a sub-adhesive layer formed on the back surface of the joint tape of FIG. 1, and FIG. 3 is a line III-III of FIG. is a cross section along

The water-dissociable bonding tape 100 of the present invention is for mutually attaching an adherend (S) made of paper to a base material (P) made of paper, or to separate the attached adherend from the base material. For easy explanation in this embodiment, the paper base material (P) is defined as a paper tube, and the adherend (S) is defined as a paper sheet wound around the paper tube in the form of a roll.

As shown, the double-sided removable water dissociable bonding tape 100 according to the present invention is implemented by applying and drying a base paper 10 made of paper and a liquid adhesive composition on one side of the base paper 10 The main adhesive layer 20, the sub-adhesive layer 30 realized by applying and drying the liquid adhesive composition on the other side of the base paper 10, and the main adhesive layer 20 are releasably adhered to the base. When the paper 10 is wound in a roll form, the release paper 40 is releasably adhered to the sub-adhesive layer 30, and the main adhesive layer 20 is formed on one side and the other side of the base paper 10. ) and the sub-adhesive layer 30 are characterized in that they have water-soluble water dissociation properties.

In this embodiment, the main adhesive layer 20 is adhered to the paper tube, which is an example of the paper base material P, and the sub adhesive layer 30 is adhered to the paper sheet, which is an example of the adherend.

The base paper 10 is made of a paper material and has a thickness of 60 to 100 μm, preferably 80 μm. For the base paper 10, the tear strength is defined as 82, 95, 107g, 93, 108, and 122g in length for three basis weights such as 70, 80, and 90g / m2, and the tensile strength is 6.3, 6.8, and 7.6kg in length. / 15mm or more, width 3.3, 3.5, 3.8kg / 15mm or more should be used.

The sub-adhesive layer 30 and the main adhesive layer 40 are implemented by applying a liquid adhesive composition to both sides of the base paper 10 and then drying it. This adhesive composition includes water, butyl-2-propenoate, glycidyl methacrylate, poly ethylene glycol, 2-mercaptoethanol ), 2-Methylpropane-2-peroxol, polymerization initiator, emulsifier, reducing agent, preservative.

The adhesive composition is 100 parts by weight of water, 52 to 68 parts by weight of butyl-2-propinonate, preferably 60 parts by weight, and 1 to 3 parts by weight of glycidyl methacrylate, preferably 2 parts by weight , 2 to 6 parts by weight of polyethylene glycol, preferably 4 parts by weight, 0.2 to 1 part by weight of 2-mercaptoethanol, preferably 0.6 parts by weight, and 0.08 to 0.2 parts by weight of 2-methylpropane-2-peroxol , preferably 0.14 parts by weight, polymerization initiator 0.12 to 2 parts by weight, preferably 1.1 parts by weight, emulsifier 1.4 to 2 parts by weight, preferably 1.7 parts by weight, and reducing agent 0.12 to 0.2 parts by weight, preferably 0.16 parts by weight and preservative 0.4 ~ 1 parts by weight, preferably 0.7 parts by weight of the composition ratio is mixed and then stirred, the stirring temperature is maintained in the range of 30 ~ 40 ℃ room temperature.

Butyl-2-propinoate is a major factor in realizing adhesive strength, and if it is out of the range of the above composition ratio, adhesive strength or room temperature adhesive strength is insufficient.

The emulsifier allows the compositions to be mixed with each other to form a stable emulsion.

An antifoaming agent is used to remove air bubbles in the finished adhesive composition, and a water-soluble surfactant with low volatility and high diffusivity is used.

When the main adhesive layer 20 and the sub adhesive layer 30 realized by the adhesive composition having the above composition and composition ratio adhere to the base material P and the adherend S made of paper, they exhibit strong adhesive strength.

The main adhesive layer 20 is implemented by applying and drying an adhesive composition on one side of the base paper 10 that has been surface-treated to expose the pulp tissue in a swollen state.

The surface treatment of the base paper 10 is implemented by relatively feeding the surface of the base paper 10 in a state in which the surface is in contact with a needle brush roller rotating at high speed. The pulp tissue is swollen by roughening, and the swollen pulp tissue can be deeply absorbed when the liquid adhesive composition is applied.

By performing this surface treatment, the main adhesive layer 20 composed of the main impregnated layer 21 impregnated on one surface of the base paper 10 and the main exposed layer 22 exposed to the outside is realized.

The sub-adhesive layer 30 is implemented by applying and drying the adhesive composition on the other side of the base paper 10, which has been surface-treated so that the pulp tissue is swollen and exposed.

The surface treatment of the base paper 10 is implemented by relatively feeding the surface of the base paper 10 in a state in which the surface is in contact with a needle brush roller rotating at high speed. The pulp tissue is swollen by roughening, and the swollen pulp tissue can be deeply absorbed when the liquid adhesive composition is applied.

By performing this surface treatment, the sub-adhesive layer 30 composed of the sub-impregnated layer 31 impregnated on the other surface of the base paper 10 and the sub-exposed layer 32 exposed to the outside is realized.

As shown in FIG. 2 , the sub-adhesive layer 30 has a strip shape extending along the base paper 10, and the unit area of the sub-adhesive layer 30 is that of the main adhesive layer 20. less than 1/2 of the unit area. Accordingly, when peeling force is applied to both sides of the main exposed layer 22 and the sub-exposed layer 30, the base paper of the portion where the sub-adhesive layer 30 having a relatively small unit area is formed is first separated.

For example, when the paper sheet as the adherend (S) is attached to the paper tube as the paper base material (P) by the paper adhesive tape 100 of the present invention, the sub adhesive layer 30 is the main adhesive layer 20 Since the area is less than 1/2, when the peel force is applied by pulling the paper sheet, it is first separated from the base paper 10 on the side of the sub-adhesive layer 30 having a small unit area.

The sub-adhesive layer 30 is composed of a first strip layer 33 and a second strip layer 34 spaced apart from each other. Accordingly, when peeling force is applied to the first and second strip layers 33 and 34, the base paper 10 corresponding to the first strip layer 33 is first separated, and then to the second strip layer 34. Corresponding base papers 10 are sequentially separated.

For example, when the paper sheet as the adherend (S) is attached to the paper tube as the paper base material (P) by the paper adhesive tape 100 of the present invention, when the paper sheet is pulled to apply the peeling force, the first Since the base paper 10 corresponding to the strip layer 33 is separated first, and then the base paper 10 corresponding to the second strip layer 34 is sequentially separated, the paper sheet is not torn and is completely separated from the paper core. can be separated

4 is a view for explaining the configuration of the main adhesive layer and the sub adhesive layer formed on both sides of the base paper of FIG. 1, and FIG. 5 is a paper base material and adherend attached to each of the main adhesive layer and the sub adhesive layer of FIG. It is a view for explaining that the base paper is separated when a peeling force is applied in a mutually widening direction.

The main impregnation layer 21 and the sub-impregnation layer 31 are impregnated into the base paper 10 by surface treatment of both sides of the base paper 10 . At this time, the impregnation depth D1 of the main impregnation layer 21 is in the range of 1/6 to 1/3 of the thickness of the base paper 10, and the impregnation depth D2 of the sub-impregnation layer 31 is the base paper 10 It is in the range of 1/6 to 1/3 of the thickness of For example, when the thickness of the base paper 10 is 60 μm, the impregnation depth D1 of the main impregnation layer 21 is 10 μm to 20 μm and the impregnation depth D2 of the sub impregnation layer 31 is 10 μm to 20 μm. It is 20 μm.

If the impregnation thicknesses D1 and D2 of the main impregnation layer 21 and the sub-impregnation layer 31 are 1/6 or less, the main exposed layer 22 attached to the paper base material P and the adherend S ) is not firmly attached to the main exposed layer 22 and the sub exposed layer 32.

Conversely, when the impregnation thickness of the main impregnated layer 21 and the sub-impregnated layer 31 is 1/3 or more, the main impregnated layer 21 and the sub-impregnated layer 31 can meet each other inside the base paper 10, and in this case When peeling force is applied to the main exposed layer 22 and the sub exposed layer 32, the base paper 10 is not separated. That is, since the main impregnated layer 21 and the sub-impregnated layer 31 are partially connected inside the base paper 10, the base paper 10 is not separated.

By the main adhesive layer 20 and the sub adhesive layer 30, the paper base material (P) and the adherend (S) are closely attached to the main adhesive layer 20 and the sub adhesive layer 30, respectively, so that the paper The base material (P) and the adherend (S) can be combined. For example, when the paper base material P is a paper tube and the adherend S is a paper sheet, the paper sheet can be attached to the paper tube.

And when it is desired to separate the adherend (S) from the paper base material (P), as shown in FIG. 5, a peeling force is applied to the paper base material (P) and the adherend (S) in a mutually widening direction, In this case, while the base paper 10 is separated between the main impregnated layer 21 and the sub-impregnated layer 31, the paper base material P and the adherend S are separated from each other. That is, the paper sheet can be separated from the paper tube.

6 is a cross-sectional view for explaining a release guide groove formed in the release paper of FIG. 1;

The release paper 40 includes first and second release papers 42 and 43 partitioned by a separation line 41 , wherein the first release paper 42 has a width smaller than that of the second release paper 43 . Accordingly, when attaching the paper sheet to the paper tube, which is the paper base material P, with the bonding tape 100 of the present invention, first, the first release paper 42 having a small width is released to form part of the main adhesive layer 20 After exposing, it is accurately attached to the paper tube while aligning the position, and when the position alignment is completed, the remaining second release paper 43 is released to expose the remaining main adhesive layer 20, and then it is attached to the paper tube.

That is, since the release paper 40 is composed of first and second release papers 42 and 43 having different sizes, a part of the main adhesive layer 20 is exposed first, and the paper adhesive tape 100 is placed on the paper tube with a small adhesive force. After aligning, the remaining second release paper 43 is released to completely attach the aligned paper adhesive tape 100.

Meanwhile, the release paper 40 further includes a release guide groove 44 formed along the separation line 41 . The release guide groove 44 allows the boundary between the first release paper 42 and the second release paper 43 to be clearly seen, and at the same time, the first release paper 42 can be easily released by a fingernail or the like.

In this way, the double-sided removable water dissociable bonding tape according to the present invention forms the main adhesive layer 20 and the sub adhesive layer 30 having an adhesive component on the base paper 10, thereby attaching an adherend such as a paper sheet to a paper base material. It can be adhered to (P), and conversely, the adherend can be easily separated from the paper base material (P).

In addition, since the main adhesive layer 20 and the sub adhesive layer 30 are dissociated with water, the base paper 10 and the main adhesive layer 20 are bonded base material waste is stirred in water in a simple process of the main adhesive layer 20. It can be water dissociated, and accordingly, the base material and the base paper 10 remain as high-purity pulp, enabling effective resource recycling.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is only exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

100 ... Double-sided detachable water dissociable joint tape
10 ... base paper 20 ... main adhesive layer
21 ... main impregnated layer 22 ... main exposed layer
30 ... sub adhesion layer 31 ... sub impregnation layer
32 ... sub-exposed layer 33 ... first strip layer
34 ... second strip layer 40 ... release paper
41 ,,, separation line 42 ... 1st release paper
43 ... 2nd release paper 44 ... release guide groove

Claims (8)

Base paper 10 made of paper;
A main adhesive layer 20 realized by applying and drying a liquid adhesive composition on one side of the base paper 10;
a sub-adhesive layer 30 realized by applying and drying a liquid adhesive composition on the other side of the base paper 10;
A release paper 40 that is releasably adhered to the main adhesive layer 20 and is releasably adhered to the sub adhesive layer 30 when the base paper 10 is wound in a roll form,
The main adhesive layer 20 and the sub adhesive layer 30 have water dissociation properties that are soluble in water;
The main adhesive layer 20 is composed of a main impregnated layer 21 impregnated on one surface of the base paper 10 and a main exposed layer 22 exposed to the outside;
The sub-adhesive layer 30 is composed of a sub-impregnated layer 31 impregnated on the other surface of the base paper 10 and a sub-exposed layer 32 exposed to the outside;
The impregnation depth (D1) of the main impregnation layer 21 is in the range of 1/6 to 1/3 of the thickness of the base paper 10;
Characterized in that the impregnation depth (D2) of the sub-impregnation layer (31) ranges from 1/6 to 1/3 of the thickness of the base paper (10). The method of claim 1, wherein the adhesive composition,
Water, Butyl-2-propenoate, Glycidyl Methacrylate, Poly Ethylene glycol, 2-Mercaptoethanol, 2-Methyl A double-sided, detachable, water-dissociable joint tape comprising 2-Methylpropane-2-peroxol, a polymerization initiator, an emulsifier, a reducing agent, and an antiseptic. The method of claim 2, wherein the adhesive composition,
100 parts by weight of water, 52 to 68 parts by weight of butyl-2-propinonate, 1 to 3 parts by weight of the glycidyl methacrylate, 2 to 6 parts by weight of the polyethylene glycol, and 2-mercaptoethanol 0.2 to 1 part by weight, 0.08 to 0.2 parts by weight of the 2-methylpropane-2-peroxol, 0.12 to 2 parts by weight of the polymerization initiator, 1.4 to 2 parts by weight of the emulsifier, and 0.12 to 0.2 parts by weight of the reducing agent And, characterized in that it comprises 0.4 to 1 part by weight of the preservative, a double-sided detachable water dissociable joint tape. According to claim 1,
The main adhesive layer 20 is implemented by applying and drying an adhesive composition on one side of the base paper 10 surface-treated so that the pulp tissue is swollen and exposed,
The sub-adhesive layer 30 is characterized in that it is implemented by applying and drying the adhesive composition on the other side of the base paper 10 surface-treated to swell and expose the pulp tissue. delete delete According to claim 1,
The sub-adhesive layer 30 has a strip shape that is formed long along the base paper 10, and the unit area of the sub-adhesive layer 30 is less than 1/2 of the unit area of the main adhesive layer 20. A double-sided detachable water dissociable joint tape. According to claim 1,
The release paper 40 includes first and second release papers 42 and 43 partitioned by a separation line 41,
Characterized in that the width of the first release paper (42) is smaller than the width of the second release paper (43), the double-sided detachable water dissociable joint tape.

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