KR101839821B1 - A envelope having adhesive joint part - Google Patents

Abstract

The envelope according to the present invention is provided with fastening means including an adhesive layer, a fixing portion, a releasing layer and a pulling portion on at least one of the at least one of the at least one of the extending portions to adhere to and fasten to the other extending portion to form an unnecessary knot, To an envelope having an adhesive fastening means capable of holding more contents than ordinary envelopes, capable of sealing and opening the envelope neatly, and re-adhering the adhesive layer as necessary.

Description

A envelope having adhesive joint part < RTI ID = 0.0 >

The present invention relates to an envelope having an adhesive fastening means, and more particularly to an envelope having at least one extension portion, in which at least one extension portion is provided with fastening means including an adhesive layer, a fixing portion, a release layer and a pulling portion, To the envelope.

The currently used envelopes are used when transporting objects, storing them, or disposing of garbage. As shown in FIG. 1, a generally used envelope 1 is provided with a handle on both sides of the mouth, and one or more extension portions 100 are provided separately from the handle to form a knot if necessary, It can be sealed.

As described above, the greatest advantage and disadvantage of the envelope is that the knot can be formed by tying the entrance. When the knot is made, the entrance of the envelope can be closed to prevent the contents from escaping, and the knot can also play a role of knob naturally. However, since it is necessary to consume more than a certain portion of the envelope to make the knot, it can not hold contents over a certain height, and loosening the knot for easy release can not only allow the contents to flow out during storage or transportation, This can happen frequently. Also, when transporting garbage, dirt can attach to the periphery of the knot during the formation of the knot, which can make the hand easily dirty during transportation.

In order to compensate for this, a carrying handle is provided on the upper part of the envelope to facilitate transportation and prevent the dirt from being buried in the hand. However, even in this case, since a part of the envelope is bound to form a knot, There are disadvantages.

Korean Utility Model Publication No. 20-1999-0037639 discloses a garbage bag in which an extension part is formed at the upper end of an envelope and an adhesive tape is adhered to one side of the extension part and can be attached and fixed at a desired place. There is a disadvantage that it is difficult to attach the adhesive tape to the adhesive tape again when the adhesive tape is peeled off.

Korea public utility model 20-1999-0037639 (October 15, 1999)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a fixing device comprising an adhesive layer, a fixing portion, a releasing layer, So that it is possible to hold more contents than ordinary envelopes of the same size without sealing unnecessary knots, and to seal the opening of the envelope neatly and to open the envelope, To an envelope having a fastening means capable of reusing an adhesive layer by covering the adhesive layer again.

The present invention relates to an envelope having an adhesive fastening means.

One aspect of the present invention is

In an envelope having at least one extension,

An adhesive layer laminated in a predetermined area on one surface of the at least one extension part;

A release layer covering the adhesive layer so that the adhesive layer is not exposed to the outside;

A fixing portion formed on the release layer; And

A pulling portion extending from the release layer to pull the release layer and passing through the cutout portion in a direction toward the other side of the extension portion in the one direction of the extension portion through the extension portion or the cutout portion penetrating the extension portion and the fixed portion;

To the envelope.

Another aspect of the present invention is

An adhesive layer formed on an inner surface of the envelope, the adhesive layer being laminated in a predetermined region of an end of the inner surface;

A release layer covering the adhesive layer so that the adhesive layer is not exposed to the outside;

A fixing portion formed on the release layer; And

A pulling portion extending from the release layer to pull the release layer and passing through the cutout portion in the outer surface direction from the inner surface direction of the envelope through the envelope or the cutout portion passing through the envelope and the fixing portion;

To the envelope.

In the present invention, the envelope may further include a grip portion provided at an end of the pulling portion.

In addition, the release layer may be characterized in that its width becomes narrower from one end connected to the fixed portion to the other end connected to the withdrawal portion.

In addition, the pulling portion may have the same width as the releasing layer, or may be narrowed from one side connected to the releasing layer to the other side.

The cut-out portion may be formed to be longer than the width of the pulling portion, or may have a width equal to the middle width of the pulling portion.

In the present invention, the envelope may include at least one selected from the group consisting of polyethylene, polypropylene, polyacrylic, polyamide, polyurethane, and natural polymer, and the adhesive layer may be any one selected from polyurethane, polyacrylic, One or more adhesives. The release layer may include at least one selected from the group consisting of silicon, olefin, and fluorine.

The adhesive layer may further include a phase transition material having an average particle diameter of 0.001 to 0.1 mu m to prevent sticking of the adhesive layer.

Since the present invention has the above-described structure, it is not necessary to make a separate knot for sealing, so that the envelope can be easily sealed and the stacking capacity of the envelope can be secured to the maximum. After the sticking, It is excellent in mobility.

In addition, the fastening means can connect the release layer to the adhesive layer again, if necessary, so that the sealing and opening of the envelope inlet can be naturally selected, and the envelope is sealed. Even after the opening, the adhesive layer can be reused by covering the release layer with the release layer, .

Figure 1 shows an envelope commonly used in the art.
Figure 2 shows a cross section of an extension with fastening means in an envelope according to an embodiment of the invention.
3 is a perspective view of an extension provided with fastening means;
4 is a perspective view of an extension of the extension of FIG. 3 when the pull is pulled through the handle;
Fig. 5 shows a section immediately before the extension with the fastening means and the extension without it are bonded.
FIG. 6 is a cross-sectional view of the extension of FIG. 5 when a force is applied in the direction of the arrow to attach the extensions.
7 to 9 show an extension provided with fastening means of different types of release layers or pulls.
Figure 10 shows an extension with fastening means comprising a traction portion with further traction section blades.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an envelope having a bonding portion according to the present invention will be described in detail with reference to the accompanying drawings and embodiments. It should be understood, however, that the invention is not limited thereto and that various changes and modifications may be made without departing from the spirit and scope of the invention.

Unless otherwise defined, all technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In addition, the following drawings are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the following drawings, but may be embodied in other forms. The following drawings may be exaggerated in order to clarify the spirit of the present invention. Also, throughout the specification, like reference numerals designate like elements.

Also, the singular forms as used in the specification and the appended claims are intended to include the plural forms as well, unless the context clearly indicates otherwise.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

The envelope according to the present invention is provided with at least one extension part or no extension part, and when the envelope has an extension part, at least one of the extension parts is provided with fastening means, An adhesive layer laminated on the region; A release layer which completely covers the adhesive layer so that the adhesive layer is not exposed to the outside; A fixing part formed on an upper surface of the release layer in one surface of the extended part to prevent excessive release of the release layer; And a pulling portion extending from the release layer to pull the release layer and passing through the cutout portion in a direction toward the other side of the extension portion in one direction of the extension portion through the extension portion or the cutout portion penetrating the extension portion and the fixing portion can do.

An adhesive layer formed on an inner surface of the envelope when the envelope does not have an extension portion, the adhesive layer being laminated on a certain region of the inner surface of the envelope; A release layer covering the adhesive layer so that the adhesive layer is not exposed to the outside; A fixing portion formed on the release layer; And a pulling portion extending from the release layer to pull the release layer and passing the cut through the cut through the envelope or the envelope and the fixing portion in the outer surface direction from the inner surface direction of the envelope.

The envelope (1) used in the present invention is normally used when transporting or storing articles or disposing of garbage, so that the inner surface, which is a surface on which the object is directly placed, and the outer surface, which is the opposite surface to the inner surface, are exposed. Also, as shown in FIG. 1, a handle may be provided on both sides of the inlet, and at least one extension 100 may be provided separately from the handle.

2, the adhesive layer 200 is laminated on one side of the extension 100, the release layer 300 is laminated on one side of the adhesive layer and blocks external exposure of the adhesive layer, A fixing part 400 is provided on the upper side of the release layer and directly connected to the release layer or partially covering one surface of the release layer to prevent excessive release of the release layer, Can be formed on the upper side. The releasing layer may be directly connected to a pulling portion 500 that is connected to the opposite side of one side in contact with the fixing portion and transmits a pulling force to the releasing layer so that the releasing layer can be easily peeled off by pulling, The grip portion 600 can be further provided to facilitate pulling on the other side not connected and to more easily carry the envelope after bonding.

On the other hand, the fixing portion is formed on the adhesive layer and the release layer on one side of the extended portion, and may be directly connected to the release layer, or may partially cover one surface of the release layer to prevent separation of the release layer due to excessive separation.

Also, the cut-out portion 110 is provided for transmitting the pull-out portion to the other surface of the extended portion, and may be provided at any position of the extended portion. Further, when the fixing portion covers a substantial part of one surface of the extended portion, it may be formed to penetrate through both the fixed portion and the extended portion as necessary. In this case, the cut-out portion may be formed at the same position on the abutting surfaces of the fixed portion and the extended portion.

The cut-out portion may penetrate the pulling portion from one surface of the extended portion to the other surface or from one surface of the fixed portion to the other surface of the extended portion. Accordingly, when the handle portion or the pull portion is pulled in the direction of the arrow in FIG. 2, the release layer connected to the pull portion naturally peels in a pulling direction of the pull portion, and the adhesive layer is exposed to the outside.

3, the operation of the fastening means will be described in more detail with reference to FIGS. 3 and 4. Referring to FIG. 3, the extension 100 having the fastening means is configured such that when the release layer 300 is not used, Not shown) to block exposure to the outside. The releasing layer is directly connected to the pulling part 500 through one end, and the fixing part 400 is provided on the releasing layer to prevent excessive release of the releasing layer.

Further, the pulling portion may be formed on the other surface of the extended portion through the cutout portion 110 provided through the extended portion and the fixed portion, and the grip portion 600 may be further provided on the other side. 3 and 4, the incision part is formed on both the extension part and the fixing part, but it may be formed only on the extension part according to the position of the fixing part, but the present invention is not limited thereto.

When the handle or the pulling portion is pulled, as shown in FIG. 4, the release layer directly connected to the pulling portion is naturally peeled off from the adhesive layer, and the adhesive layer, which has been blocked from contact with the outside, is exposed by the release layer. The exposed adhesive layer can seal the envelope through contact with the extension where the fastening means is not formed.

5 and 6, a method of sealing an envelope according to the present invention will be described in detail. First, as shown in FIG. 5, the extended portion having the fastening means is directly brought into contact with the extended portion. At this time, the fastening means does not expose the adhesive layer by pulling the pulling portion or the grip portion in advance, but directly contacts the other extension portion while the release layer covers the adhesive layer as shown in Fig. That is, the extension without the fastening means is brought into direct contact with the release layer and the pulling portion of the fastening means.

Next, when the handle is pulled in the direction of the arrow while pushing the extension parts in the direction of the arrow in FIG. 5, the adhesive layer is naturally exposed while the pulling part and the release layer connected to the handle are instantaneously exposed, And is adhered by force through the adhesive layer of the fastening means as shown in Fig. In other words, by using the flexibility of each configuration included in the fastening means without the need to expose the adhesive layer before the extension, it is possible to easily attach the extension only by simply pulling the handle or pull.

Further, in the case of an envelope in which the extension is not formed, the fastening means is positioned on the inner surface of the envelope, and the opposite side of the inner surface on which the fastening means is formed, that is, the inner surface of the fastening means is adhered to the adhesive layer of the fastening means. At this time, the bonding process is the same as the bonding between the extension portions, and the inner surface of the envelope is directly bonded instead of the extension portion. In this case, since the inner surface of the envelope is adhered, the tensile force applied to the envelope by the weight of the article can be dispersed throughout the envelope as compared with the case where the extension portions are directly bonded, It is possible to carry heavier objects compared to bonding parts.

Since the present invention has the above-described structure, it is not necessary to make a separate knot for sealing, so that the stacking capacity of the envelope can be secured to the maximum, and even when the extension portion is simply overlapped, or the inner surface of the envelope is touched, It is possible to seal the envelope, and at the same time, it can be easily transported using the pulling portion or the grip portion after the bonding, so that it can have excellent mobility.

In addition, the fastening means may be detached again if necessary, and then the exposed adhesive layer may be pushed in a direction opposite to the pulling direction of the pulling portion so that the release layer naturally covers the adhesive layer. Therefore, it is possible to naturally select the sealing and opening of the envelope inlet as necessary, and it is economical to reuse the envelope by covering the adhesive layer with the release layer even after opening the envelope.

Hereinafter, the envelope according to the present invention will be described in more detail for each configuration.

(A) Envelopes and extensions

In the present invention, the envelope (1) is used, for example, as a substitute for a shopping cart containing goods purchased after purchasing the goods at a conventional market, a convenience store, a large mart or the like, , The lower surface is thermally fused, and the upper surface is open.

In the present invention, if the envelope has the basic structure as described above, its shape, size, thickness and the like are not limited as long as it is commonly used in the art. However, in order to achieve the object of the present invention, at least one of the extension portions of the envelope has at least one extension portion, and at least one of the extension portions should be provided with a fastening means including an adhesive layer, a release layer, a fixing portion, a pulling portion and a handle portion.

In the present invention, the envelope is not limited to a material but is preferably made of the same material as that of the extension. If necessary, the extensions are bonded to each other. When the adhesive is peeled off again, it is preferable to include a component capable of minimizing residual adhesive material while having tearing resistance.

In the present invention, the envelope may include, for example, at least one selected from high-density polyethylene, linear low-density polyethylene and high-density polyethylene containing calcium carbonate, and the polyethylene may be at least one selected from the group consisting of Material. ≪ / RTI > In addition to the above resin, it may further include biodegradable resins or other additives as required.

1, one or more extension portions 100 are formed at the entrance portion of the envelope. The extension portions 100 may be provided with or without fastening means including the adhesive layer, the release layer, the fixing portion, the pulling portion, . More specifically, the extension portion provided with the fastening means and the extension portion not provided with the fastening means can be fastened to each other through the adhesive layer in a pair so as to face each other with respect to the entrance of the envelope. At this time, the extension portion may be made of the same material as or different from the envelope, and the size, shape, and thickness are not limited to the present invention.

Although not shown in the drawings, the extended portion of the extended portion, which is not provided with the fastening means, may further include a reinforcing portion on the side opposite to the side in contact with the adhesive layer to prevent breakage of the extended portion due to adhesion and detachment. Or the extension without the fastening means may have a greater thickness than the extension provided. Changes in the reinforcing means or structure of such extensions can be freely introduced in the line which does not impair the object of the present invention, and the present invention is not limited thereto.

In addition, although the fastening means may be provided, only the envelope is limited. However, if the envelope is used for conveying and storing objects other than the envelope, and is a bag-shaped article requiring fastening means, the fastening means may be provided for the bag- , Which are also within the scope of the present invention.

(B)

In the present invention, the adhesive layer 200 is laminated on one side of the extended portion, and exposure to the outside can be blocked through the release layer 300 laminated on the other side. Also, the pulling portion 500 connected to the release layer can be pulled out as described above, and the exposed adhesive layer can be brought into contact with another extension portion to seal the envelope.

In the present invention, the adhesive layer may have the same or different lamination area as the release layer, but when the adhesive layer is laminated over a larger area than the release layer, the adhesive layer may inadvertently adhere to the envelope or other part of the extension The lamination area of the adhesive layer is preferably equal to or smaller than the lamination area of the release layer.

In the present invention, the adhesive layer may comprise adhesive components commonly used in the art as pressure sensitive adhesives. Further, since the adhesive layer is required to be removed and reattached if necessary, it is preferable to use a pressure-sensitive adhesive capable of repeatedly removing and attaching the pressure-sensitive adhesive layer.

In the present invention, the pressure-sensitive adhesive is preferably an elastomer having sufficient adhesion without any other adhesive component. For example, one or more selected from polyurethane, polyacrylic, and polyether-based resins may be mentioned. In addition to the above components, synthetic rubbers such as butyl rubber, natural rubbers, ethylene-vinyl acetate resins, silicone rubbers composed of siloxane resins, styrene block copolymers, vinyl ethers, It is not.

In the present invention, the thickness of the adhesive layer is not limited, but is preferably 1 to 20 占 퐉. If it is less than 1 탆, the sealing effect is reduced to half, and if it is more than 20 탆, the adhesive force is too strong, so that the adhesive component may remain in the extension portion where the fastening means is not formed even after removing the adhesive layer, The extension may break when opened.

The adhesive layer may further include silicon dioxide particles so as to be able to remove overlapping shear properties and cohesive strength from the extensions of the extrudate. The silicon dioxide particles may be needle-shaped, rod-shaped, or spherical-shaped. The amount of the silicon dioxide particles to be added is not limited, but may be 1 to 8 wt% of 100 wt% .

The adhesive layer may further include 0.01 to 2 parts by weight of a phase transition material having an average particle diameter of 0.001 to 0.1 탆 with respect to 100 parts by weight of the composition constituting the adhesive layer in order to suppress the residual adhesive when the extension part is bonded and then removed .

The phase-change materials (PCM) have a storage shear modulus at 25 ° C measured in a shear mode of dynamic viscoelasticity measurement at a temperature of from -50 ° C to 300 ° C continuously at a temperature of about 1.0 × 10 ⁵ to 10 ⁷ Pa Of the total amount of water. This makes it possible to more effectively prevent the adhesive layer from remaining on the surface of the extended portion when the extended portion is peeled off.

Examples of the phase transition material usable in the present invention include fatty acids such as caprylic acid (CH ₃ (CH ₂ ) ₆ COOH), Glauber's salt, manganese nitrate hexahydrate _{, Mn (NO 3) 2 H} 2 O), nitride oxide of manganese tetrahydrate (manganese nitrate hexahydrate, Mn (NO 3) 2 H 2 O), nitride of zinc hexahydrate _{(zinc nitrate hexahydrate, Zn 2 (} NO 3) 22 O) . However, the present invention is not limited thereto, and other phase transition materials may be used.

The phase change material may be mixed in the form of a polymer when the film is prepared, but it is more preferable to inject the phase change material in the form of a microcapsule having an outer shell of an inorganic material. In addition, since the phase transition material in the microcapsule form has a high hardness, the coefficient of friction of the adhesive layer to be produced is greatly increased, so that slippage of the extended portion can be prevented.

 The wall-forming material constituting the outer shell is preferably a precursor-type inorganic material capable of forming a capsule with high hardness. As the wall-forming material, any one or two or more materials selected from silica, titania, zirconia, zinc oxide nanoparticles, and the like may be included. Among them, considering the high strength and easiness of encapsulation, titania, zirconia Is preferred.

The microcapsules are prepared by dispersing a phase transition material, which is the content of the microcapsules, in a production method commonly practiced by a person skilled in the art, that is, in a dispersion medium having emulsification safety, and then stirring the emulsion dispersion to produce a capsule film. The resulting capsule film can be completed by adding a curing agent or a reactive agent to cure the cured film.

It is preferable that the phase change material includes 0.01 to 2 parts by weight of 100 parts by weight of the whole adhesive composition. If it is added in an amount of less than 0.01 part by weight, the effect of addition is insufficient, and if it is added in an amount of more than 2 parts by weight, the adhesive strength of the adhesive layer may be lowered.

(C)

In the present invention, the release layer 300 is laminated on one side of the adhesive layer to protect the adhesive layer and, if necessary, easily peel off the adhesive layer to expose the adhesive layer to the outside. At this time, the most important point in the release layer is to keep the releasing force uniformly as a whole, and the releasing component should be finely and uniformly applied to the surface contacting with the adhesive layer.

In the present invention, the releasing layer may be formed by coating a release surface and a surface of the releasing paper, which is in contact with the adhesive layer, on a surface of a release material such as silicone, urethane or fluorine compound.

In the present invention, the release paper may include one or more selected from those conventionally used in the art, for example, densified kraft paper, polycoated kraft paper, clay coated kraft paper, lay flat paper, film release paper, It is preferable to use polycoated kraft paper or film release paper having excellent moisture resistance and printability. The releasing component may be at least one selected from the group consisting of silicon, olefin and fluorine, and it is preferable to use a silicone component in view of cost and releasability.

Also, in the present invention, the drawing part is directly connected to the drawing part, and the releasing layer may be damaged due to the continuous movement of the drawing part. Therefore, the release layer may be provided so that the width of the release layer decreases toward the other end connected to the pulling portion at one end connected to the fixing portion as shown in FIG. 7, or may have the same width as that of the pulling portion and the release layer as shown in FIG. . That is, since the releasing layer and the fixing layer are provided so that the ends directly connected to each other have the same width, it is possible to prevent the releasing layer from being broken by the adhesive layer when peeling off the releasing layer from the adhesive layer, .

(D) a pulling portion and a handle portion

In the present invention, the pulling part 500 may be a kind of handle that is connected to the mold release layer at one end as shown in FIG. 5 and moves the mold release layer to peel off the adhesive layer or cover the adhesive layer again.

Preferably, the pulling portion is made of a material having excellent mechanical rigidity such that the pulling portion is continuously pulled or pushed as necessary, and is the portion with the greatest movement in the fastening means. Examples of the material include polyethylene (LDPE, LLDPE, HDPE) and polystyrene, and preferably polyethylene.

In order to prevent breakage of the release layer due to repetitive movement, the pulling portion may be provided so that the ends directly connected to the release layer and the fixing layer have the same width. That is, as shown in FIG. 8, it is preferable that the pulling portion has the same width as the release layer, or the width becomes narrower from one side connected to the release layer to the other side. In the case of the above structure, the releasing layer and the end portions directly connected to each other in the fixing layer have the same width, so that breakage of the releasing layer due to excessive adhesion and desorption can be prevented.

9, when the traction portion is narrowed from one side connected to the release layer toward the other side, the length of the cut portion 110 formed on the extension portion or the extension portion and the fixing portion is adjusted, And the like. That is, the width of the pulling portion is not the same at all positions, and the width becomes wider toward one end connected to the release layer, and a section having a longer width than the length of the cut portion exists. Accordingly, when the pulling portion is pulled for peeling the release layer, the movement of the pulling portion is stopped at the portion where the length of the cut portion is equal to the width of the pull portion, and at the same time, the degree of peeling of the release layer can be fixed.

In the present invention, in the case where the pulling portion has a structure that is narrowed from one side connected to the release layer toward the other side, the length of the cut portion may be the same width as the middle width of the pulling portion. As a result, it is possible to secure a good exposed area for the adhesive layer to adhere to the other extensions, and to prevent the extraneous movement of the draw portion, thereby preventing breakage of the release layer.

Also, the pulling portion may further include a pulling wing 510 at one or both ends as shown in FIG. That is, similar to the pulling portion of FIG. 9, the pulling portion vane has the effect of making the width of the pulling portion longer than the length of the cut portion, thereby adjusting the pulling degree of the pulling portion.

FIG. 10 shows the fastening means when the pulling portion provided with the pulling portion wing is pulled. As shown in FIG. 10, the pulling portion has a degree of peeling of the releasing layer fixed by the pulling portion wing. Also, by providing the effect of making the width of the traction portion longer than the length of the incision portion as described above, it is possible to solve the disadvantage that the traction portion is excessively inserted or removed from the incision portion.

The pulling vane may be positioned at one or both ends of the pulling portion and the position of the pulling portion vane may be freely positioned at one side or both sides within a range that does not adversely affect the adhesion of the release layer.

Further, the pulling portion may have a grip portion 600 for pulling the pulling portion more easily at the other end which is not connected to the release layer. The handle portion does not limit the shape, size, material, and the like within the range not impairing the object of the present invention, and the present invention is not limited thereto.

(E)

In the present invention, the fixing portion 400 is formed on the upper surface of the release layer in one side of the extended portion as shown in FIGS. 2 and 5, and controls the degree of peeling of the release layer. Also, as shown in FIGS. 2 to 4, a cutout 110 is provided at a position facing the extended portion, so that the pulled portion is pierced from one surface of the fixed portion to the other surface of the extended portion.

The fixing portion may be directly connected to the release layer to prevent excessive release of the release layer, or may be formed to cover the release layer and may be freely selected according to the shape and thickness of the fastening means. The material is not limited, but it is preferable to use a material having excellent physical rigidity such as polyethylene (LDPE, LLDPE, HDPE) or polystyrene.

In the case where the incision part is provided, the fixing part has a larger width than the incision part because the pull part penetrates through the incision part. When the width of the release layer is larger than the width of the pulling portion as shown in FIGS. 5 to 7, the width of the release layer may be the same as that of the release layer, but when the width of the release layer is equal to the width of the pulling portion as shown in FIG. 8, The width of the release layer and the width of the traction portion is preferably larger than the width of the release layer and the traction portion.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the following examples and comparative examples are only the best examples for explaining the present invention in more detail, but the present invention is not limited thereto.

The physical properties of the specimens prepared through Examples and Comparative Examples were measured as follows.

(Residual adhesive)

The extensions formed with the adhesive layer and the extensions not formed were laminated at a weight of 2 kgf / cm and left at room temperature for 30 minutes. Then, the peeling speed was 300 mm / min and the substrate was peeled at 180 ° C at 25 ° C. When the surface of the extension without peeling adhesive layer was peeled off, the peeled surface was visually observed. , ◯ indicates that the adhesive remained at less than 10% but less than 10%.

(Example 1)

(Containing 94% by weight of (meth) acrylic acid alkyl ester and 6% by weight of hydroxyethyl methacrylate) was prepared as an adhesive composition, and an ethyl acetate solution of the adhesive composition was applied to a general garbage bag (material: HDPE, Chemicals) in a size of 3 cm and a thickness of 50 탆. Then, the solvent was removed by heating at 80 DEG C for 10 minutes, and then cured at 40 DEG C for 3 days to complete a garbage bag having an adhesive layer formed thereon.

(Example 2)

The adhesive composition was prepared in the same manner as in Example 1 except that 100 parts by weight of the adhesive composition was further added with 1 part by weight of a phase change material capsule having an average particle size of 0.01 탆 as a phase transition material and a wall material containing zirconia and manganese oxide hexahydrate as an internal phase transition material A garbage bag having an adhesive layer formed thereon was completed.

(Example 3)

A garbage bag having an adhesive layer formed thereon was prepared in the same manner as in Example 1, except that 3 parts by weight of the same phase change material capsules as in Example 2 were further added to 100 parts by weight of the adhesive composition.

[Table 1]

As shown in Table 1, the envelope according to the present invention can further reduce the amount of residual adhesive after peeling by further adding a phase change material. However, when the addition amount of the phase change material exceeds the reference value (Example 3), the amount of the residual adhesive is greatly reduced, and the adhesive force is also greatly reduced at the same time, so that the fixing effect of the extension portion is lower than that of Example 2. [

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

1: Envelope
100: Extension part
110: incision
200: adhesive layer
300:
400:
500: pulling part
510: pulling wing
600: Handle portion

Claims (9)

In an envelope having at least one extension,
An adhesive layer laminated in a predetermined area on one surface of the at least one extension part;
A release layer covering the adhesive layer so that the adhesive layer is not exposed to the outside;
A fixing portion formed on the release layer; And
A pulling portion extending from the release layer to pull the release layer and passing through the cutout portion in a direction toward the other side of the extension portion in the one direction of the extension portion through the extension portion or the cutout portion penetrating the extension portion and the fixed portion;
Wherein the adhesive layer comprises at least one adhesive composition selected from the group consisting of polyurethane, polyacrylic, and polyether, wherein the adhesive composition comprises 1 to 8% by weight of silicon dioxide particles in 100% by weight of the adhesive composition,
Wherein the adhesive layer comprises one or more phase transition materials selected from the group consisting of grass salt, manganese oxide hexahydrate, manganese oxide tetrahydrate and zinc nitrate hexahydrate in 100 parts by weight of the adhesive composition as an internal material, silica, titania, zirconia and zinc oxide And further comprising 0.01 to 2 parts by weight of microcapsules of a phase transition material having an average particle diameter of 0.001 to 0.1 mu m and containing one or more selected inorganic materials as a wall-forming material.
An adhesive layer formed on an inner surface of the envelope, the adhesive layer being laminated in a predetermined region of an end of the inner surface;
A release layer covering the adhesive layer so that the adhesive layer is not exposed to the outside;
A fixing portion formed on the release layer; And
A pulling portion extending from the release layer to pull the release layer and passing through the cutout portion in the outer surface direction from the inner surface direction of the envelope through the envelope or the cutout portion passing through the envelope and the fixing portion;
Wherein the adhesive layer comprises at least one adhesive composition selected from the group consisting of polyurethane, polyacrylic, and polyether, wherein the adhesive composition comprises 1 to 8% by weight of silicon dioxide particles in 100% by weight of the adhesive composition,
Wherein the adhesive layer comprises one or more phase transition materials selected from the group consisting of grass salt, manganese oxide hexahydrate, manganese oxide tetrahydrate and zinc nitrate hexahydrate in 100 parts by weight of the adhesive composition as an internal material, silica, titania, zirconia and zinc oxide And further comprising 0.01 to 2 parts by weight of microcapsules of a phase transition material having an average particle diameter of 0.001 to 0.1 mu m and containing one or more selected inorganic materials as a wall-forming material.
3. The method according to claim 1 or 2,
The envelope
A grip portion provided at an end of the pulling portion;
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3. The method according to claim 1 or 2,
The release layer
The width of which becomes narrower toward the other end connected to the pull portion at one end connected to the fixing portion.
3. The method according to claim 1 or 2,
The pulling portion
Wherein the release layer has the same width as the release layer.
3. The method according to claim 1 or 2,
The pulling portion
Wherein the width is narrower from one side connected to the release layer to the other side.
The method according to claim 6,
The cut-
And a width equal to a middle width of the pulling portion.
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