KR102172457B1 - Baseless double-sided tape for envelopes - Google Patents

Baseless double-sided tape for envelopes Download PDF

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Publication number
KR102172457B1
KR102172457B1 KR1020200072615A KR20200072615A KR102172457B1 KR 102172457 B1 KR102172457 B1 KR 102172457B1 KR 1020200072615 A KR1020200072615 A KR 1020200072615A KR 20200072615 A KR20200072615 A KR 20200072615A KR 102172457 B1 KR102172457 B1 KR 102172457B1
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South Korea
Prior art keywords
layer
adhesive
sided tape
envelope
resin
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KR1020200072615A
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Korean (ko)
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박준혁
린우시앙
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박준혁
린우시앙
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/10—Adhesives in the form of films or foils without carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/12—Stencil printing; Silk-screen printing
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C08K5/541—Silicon-containing compounds containing oxygen
    • C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape

Abstract

The present invention relates to an inorganic double-sided tape for an envelope, in which one side of an adhesive layer has adhesive properties and the other side has adhesive properties due to a mesh-shaped resin layer, thereby being improved to be suitable for repeatedly sealing an opening portion of the envelope.

Description

봉투용 무기재 양면테이프{Baseless double-sided tape for envelopes}Baseless double-sided tape for envelopes

본 발명은 봉투용 무기재 양면테이프에 관한 것으로, 보다 상세하게는 접착층의 일면은 접착성질을 갖고 타면은 망사형상의 수지층으로 인해 점착성질을 갖도록 함으로써 봉투의 개봉부를 반복적으로 밀봉하는데 적합하도록 개선된 봉투용 무기재 양면테이프에 관한 것이다.The present invention relates to an inorganic double-sided tape for an envelope, and more specifically, one side of the adhesive layer has adhesive properties and the other side has adhesive properties due to a mesh-shaped resin layer, so that it is improved to be suitable for repeatedly sealing the open portion of the bag. It relates to an inorganic double-sided tape for envelopes.

봉투는 다양한 물건을 담을 수 있는 부재이다. 가장 보편적인 봉투의 기능을 서류 등을 담은 채 밀봉되어 필요개소로 내용물을 안전하게 전달하는 것에 있다. Envelopes are members that can hold various objects. The most common function of an envelope is to securely deliver the contents to the required location by being sealed with documents.

봉투 사용시 개봉부를 밀봉하는 전통적인 방식은 개봉부를 밀봉하도록 붙는 면에 풀을 칠한 후 풀로 붙이는 방식이다. 하지만, 이러한 방식은 항상 풀이 있어야 하기 때문에 사용하기 불편하고 번거로웠다.When using an envelope, the traditional method of sealing the opening part is to apply glue to the side that is attached to seal the opening part. However, this method was inconvenient and cumbersome to use because there must always be a glue.

이에, 하기한 [선행기술문헌]들처럼 양면테이프를 이용하여 개봉부를 밀봉하는 방식이 개시되었고, 이제는 양면테이프 방식이 보편화되었다.Thus, a method of sealing an opening portion using a double-sided tape as described in the following [prior art documents] has been disclosed, and now, a double-sided tape method has become common.

그런데, 이와 같은 밀봉방식에 사용되는 양면테이프는 반드시 기재(base layer film)를 포함하는 구조이기 때문에 봉투의 변형에 맞춰 용이하게 변형될 수 있는 신축변형성이 떨어져 접착면에서 쉽게 분리 이탈되는 단점이 발생되었다.However, since the double-sided tape used in such a sealing method necessarily includes a base layer film, it has a disadvantage that it is easily separated from the adhesive surface due to its lack of elastic deformation that can be easily deformed according to the deformation of the envelope. Became.

이에 더하여, 종래 양면테이프는 점착면을 남기고 이형지를 이형시켜야 하는데, 이 이형지를 점착면으로부터 떼어내기가 쉽지 않아 많은 불편함과 번거로움도 있었다.In addition, in the conventional double-sided tape, the release paper must be released without leaving the adhesive surface, but it is difficult to remove the release paper from the adhesive surface, so there is a lot of inconvenience and hassle.

또한, 종래 양면테이프는 한 번 부착시키면 다시 떼어내기가 쉽지 않고, 잘못하다가는 개봉부를 손상시키는 문제도 있었다.In addition, if the conventional double-sided tape is attached once, it is not easy to remove again, and there is a problem of damaging the unsealed part if it is wrong.

국내공개실용 제20-2009-0001898호(2009-02-27) 보안을 위한 봉투Envelope for security of No. 20-2009-0001898 (2009-02-27) for public offices in Korea

본 발명은 상술한 바와 같은 종래 기술상의 제반 문제점들을 감안하여 이를 해결하고자 창출된 것으로, 그 목적은 접착층의 일면은 접착성질을 갖고 타면은 망사형상의 수지층으로 인해 점착성질을 갖도록 함으로써 봉투의 개봉부를 반복적으로 밀봉하는데 적합하도록 개선된 봉투용 무기재 양면테이프를 제공하는 것이다.The present invention was created to solve the problems in the prior art as described above, and its object is to open the envelope by making one side of the adhesive layer have adhesive properties and the other side have adhesive properties due to a mesh-shaped resin layer. It is to provide an improved inorganic double-sided tape for envelopes suitable for sealing parts repeatedly.

상기 본 발명의 목적은 봉투(100)의 접이부(110) 내면에 부착되어 봉투의 개봉부를 밀봉하는데 사용되는 양면테이프로서, 접착층(230)-수지층(240)-이형층(220)-후지층(210)으로 된 층구조를 갖되, 상기 후지층(210)은 이형층과 함께 분리되는 이형필름이며; 상기 이형층(220)은 UV 처리된 실리콘수지로 형성되며; 상기 수지층(240)은 망사형태로 형성되어 접착층(230)의 접착액 일부가 망사형태의 빈 공간으로 유입되어 채워지도록 구성되어, 상기 후지층(210)을 분리하면 후지층(210)과 함께 이형층(220)이 수지층(240)에서 분리되며, 봉투의 접이부(110) 내면은 접착층(230)의 접착성질로 인해 접착층과 접착되고, 봉투(100)의 접이부(110)를 접었을 때 봉투의 외면은 수지층(240)의 망사형태의 빈공간으로 채우진 접착액으로 점착되는 것을 특징으로 하는 봉투용 무기재 양면테이프를 제공함으로써 달성될 수 있다.The object of the present invention is a double-sided tape attached to the inner surface of the fold portion 110 of the envelope 100 and used to seal the open portion of the envelope, the adhesive layer 230-the resin layer 240-the release layer 220-Fuji It has a layered structure made of a layer 210, the Fuji layer 210 is a release film separated together with the release layer; The release layer 220 is formed of a UV-treated silicone resin; The resin layer 240 is formed in a mesh shape so that a part of the adhesive solution of the adhesive layer 230 flows into and fills the empty space in the shape of a mesh. When the Fuji layer 210 is separated, together with the Fuji layer 210 The release layer 220 is separated from the resin layer 240, and the inner surface of the fold portion 110 of the envelope is adhered to the adhesive layer due to the adhesive properties of the adhesive layer 230, and the fold portion 110 of the envelope 100 is folded. At this time, the outer surface of the envelope may be achieved by providing an inorganic double-sided tape for an envelope, characterized in that the adhesive liquid filled with the mesh-shaped empty space of the resin layer 240 is adhered.

본 발명에 따른 무기재 양면테이프는 무기재이므로 봉투의 변형에 추종하여 용이하게 변형될 수 있는 신축변형성이 향상되는 잇점이 있다.Since the inorganic double-sided tape according to the present invention is an inorganic material, it has the advantage of improving elasticity and deformation that can be easily deformed by following the deformation of the envelope.

또한, 본 발명은 떼고 붙이는 동작이 수월하고 오래 사용할 수 있으면서 특히, 봉투의 개봉부를 반복적으로 밀봉하는데 적합하도록 개선된 효과를 얻을 수 있다.In addition, the present invention can obtain an improved effect so as to be suitable for repetitive sealing of the opened portion of the bag while the detaching and attaching operation is easy and can be used for a long time.

도1은 본 발명에 따른 봉투용 무기재 양면테이프의 이형전 상태를 보인 예시도이며,
도2는 본 발명에 따른 봉투용 무기재 양면테이프의 이형후 상태를 보인 예시도이다.
도3은 본 발명에 따른 봉투용 무기재 양면테이프를 구성하는 수지층의 구조를 보인 예시도이며,
도4는 본 발명에 따른 봉투용 무기재 양면테이프의 롤 형태로 제조된 상태를 도시한 도면이다.1 is an exemplary view showing a state before release of an inorganic double-sided tape for an envelope according to the present invention,
Figure 2 is an exemplary view showing a state after release of the double-sided tape for an inorganic material for an envelope according to the present invention.
3 is an exemplary view showing the structure of a resin layer constituting the double-sided tape for an inorganic material for an envelope according to the present invention,
Figure 4 is a view showing a state manufactured in the form of a roll of an inorganic double-sided tape for an envelope according to the present invention.

이하에서는, 첨부도면을 참고하여 본 발명에 따른 바람직한 실시예를 보다 상세하게 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

본 발명에 따른 봉투용 무기재 양면테이프는 도1 및 도2의 예시와 같이, 봉투(100)의 접이부(110) 내면에 부착되어 봉투의 개봉부를 반복적으로 밀봉하는데 사용되는 수단이다.The inorganic double-sided tape for an envelope according to the present invention is a means used to repeatedly seal the opened portion of the envelope by being attached to the inner surface of the folding portion 110 of the envelope 100, as illustrated in FIGS. 1 and 2.

구체적으로 본 발명에 따른 양면테이프는 접착층(230)-수지층(240)-이형층(220)-후지층(210)으로 된 층구조를 갖는다.Specifically, the double-sided tape according to the present invention has a layered structure of an adhesive layer 230-a resin layer 240-a release layer 220-a back layer 210.

상기 후지층(210)은 본 발명에 따른 양면테이프를 접착제를 통해 봉투(100)의 접이부(110) 내면에 접착한 다음 이형층과 함께 분리되는 이형필름으로, PET 필름 또는 PE 필름으로 제조된다.The Fuji layer 210 is a release film that is separated with a release layer after bonding the double-sided tape according to the present invention to the inner surface of the folding part 110 of the bag 100 through an adhesive, and is made of a PET film or a PE film. .

상기 이형층(220)은 상기 후지층(210)의 일면에 UV 처리된 실리콘수지로 형성된다. UV 처리됨으로써 실리콘수지가 경화되어 수지층에서 용이하게 분리될 수 있다.The release layer 220 is formed of a UV-treated silicone resin on one surface of the Fuji layer 210. The silicone resin is cured by UV treatment and can be easily separated from the resin layer.

상기 접착층(230)은 접착성질을 가져 일면이 봉투의 접이부(110) 내면에 접착고정된다.The adhesive layer 230 has adhesive properties so that one surface is adhesively fixed to the inner surface of the fold portion 110 of the envelope.

수지층(240)은 도3에 도시된 바와 같이 상기 접착층(230)의 타면에 망사형태로 형성되어 접착층(230)의 접착액 일부가 망사형태의 빈 공간으로 유입되어 채워지도록 구성된다.As shown in FIG. 3, the resin layer 240 is formed in a mesh shape on the other surface of the adhesive layer 230 so that a part of the adhesive solution of the adhesive layer 230 flows into and fills the empty space of the mesh shape.

이 경우, 수지층(240)을 망사형태로 가공하는 방법은 자외선 경화방식을 이용할 수 있다. 이는 자외선을 조사하는 부위와 그렇지 않은 부위를 분리하여 경화시킨 후 경화되지 않은 부위를 떼어내는 방식으로 처리될 수 있으며, 기본적으로 망사형태를 가지면 되므로 다양한 방식을 채용할 수 있다.In this case, an ultraviolet curing method may be used as a method of processing the resin layer 240 into a mesh shape. This can be treated by separating and curing the area irradiated with ultraviolet rays and the area not being cured, and then removing the uncured area. Since it is basically a mesh shape, various methods can be employed.

따라서, 수지층(240)이 접착층(230)의 타면에 형성되면 접착층(230)의 접착액 일부가 망사형태의 빈 공간으로 유입되어 채워지게 된다.Accordingly, when the resin layer 240 is formed on the other surface of the adhesive layer 230, a part of the adhesive solution of the adhesive layer 230 flows into and fills the empty space in the form of a mesh.

이와 같이 구성된 본 발명에 따른 봉투용 양면테이프는 접착층의 일면을 봉투의 접이부(110) 내면에 접착시킨 다음 후지층을 분리하면 후지층과 함께 이형층이 수지층에서 분리된다.In the double-sided tape for envelopes according to the present invention configured as described above, when one side of the adhesive layer is adhered to the inner surface of the fold portion 110 of the envelope and then the backing layer is separated, the release layer along with the backing layer is separated from the resin layer.

이 후, 봉투의 접이부(100)를 접은 다음 봉투의 외면에 수지층을 밀착시키면 봉투의 외면은 수지층의 망사형태의 빈공간으로 채우진 접착액으로 점착된다.Thereafter, when the fold portion 100 of the envelope is folded and the resin layer is in close contact with the outer surface of the envelope, the outer surface of the envelope is adhered with an adhesive solution filled with the empty space in the form of a mesh of the resin layer.

따라서, 본 발명에 따른 봉투용 양면테이프는 수지층(240)에 접착되는 봉투(100)는 접착액이 있는 부분에서만 접착이 일어나고, 접착액이 없는 망사 부분에서는 접착이 이루어지지 않기 때문에 떼고 붙이기가 매우 좋으며, 이형층(220)이 이형될 때도 용이성을 제공한다.Therefore, in the double-sided tape for envelopes according to the present invention, since the envelope 100 adhered to the resin layer 240 is bonded only at the portion where the adhesive liquid is present, and the mesh portion without the adhesive liquid is not bonded, it is difficult to remove and paste. It is very good, and provides ease of use even when the release layer 220 is released.

또한, 한 번 붙이고 나면 다시 떼기 어려운 기존 양면접착제 구조와는 완전히 다른 것으로 적정한 접착력을 유지하면서도 떼어내고자 할 때는 어렵지 않게 떼어낼 수 있어 사용상 편의성을 현저히 향상시킨다.In addition, as it is completely different from the existing double-sided adhesive structure, which is difficult to peel off once attached, it can be peeled off without difficulty when removing it while maintaining proper adhesive strength, significantly improving the convenience of use.

나아가, 후지층과 이형층이 분리된 상태에서는 접착층과 수지층만이 존재하는 무기재 상태이므로, 봉투의 변형에 추종하여 용이하게 변형될 수 있는 신축변형성이 향상되는 잇점이 있다.Furthermore, since only the adhesive layer and the resin layer exist in the state where the backing layer and the release layer are separated, there is an advantage of improving the elasticity and deformation that can be easily deformed following the deformation of the envelope.

한편, 본 발명에 따른 봉투용 양면테이프는 사용의 용이성을 위해 롤 형태로 권취된 상태로 제조될 수 있다.On the other hand, the double-sided tape for an envelope according to the present invention may be manufactured in a rolled state for ease of use.

이 경우 본 발명에 따른 봉투용 양면테이프는 후지층의 외면에 보조이형층을 더 형성할 수 있으며, 적층순서를 보면 도4에 도시된 바와 같이, 접착층(230)-수지층(240)-이형층(220)-후지층(210)-보조이형층(250)이 반복된다.In this case, the double-sided tape for an envelope according to the present invention may further form a secondary release layer on the outer surface of the backing layer, and as shown in Fig. 4 in the stacking sequence, the adhesive layer 230-the resin layer 240-the release Layer 220-Fuji layer 210-auxiliary release layer 250 is repeated.

즉, 권취된 상태에서 후지층(210)과 접착층(220)이 서로 접착되지 않도록 후치층이 외면에는 보조이형층(250)이 필요하며, 보조이형층(250) 역시 UV 처리된 실리콘수지로 형성된다.That is, in a wound state, a secondary release layer 250 is required on the outer surface of the posterior layer so that the backing layer 210 and the adhesive layer 220 do not adhere to each other, and the secondary release layer 250 is also formed of UV-treated silicone resin. do.

한편, 본 발명에서는 이형부분의 이형성을 높이기 위해 수지층(240)과 후지층(210) 및 보조이형층(250)은 동일 폭을 갖도록 형성하고, 접착층(230)은 수지층(240) 보다 작은 폭을 갖도록 형성하며, 이형층(220)은 접착층(230) 보다 작은 폭, 즉 가장 작은 폭을 갖도록 형성하도록 구성한다.On the other hand, in the present invention, in order to increase the releasability of the release part, the resin layer 240, the Fuji layer 210, and the auxiliary release layer 250 are formed to have the same width, and the adhesive layer 230 is smaller than the resin layer 240. It is formed to have a width, and the release layer 220 is configured to have a smaller width than the adhesive layer 230, that is, the smallest width.

이것은 이형층(220)의 합지력을 낮춰 계면분리가 쉽게 이루어지도록 하기 위한 것이며, 수지층(240)과 후지층(210) 사이에 공간이 생기게 하여 사용자가 잡고 떼어내기 쉽도록 하기 위한 것이다.This is to reduce the bonding force of the release layer 220 to facilitate interface separation, and to create a space between the resin layer 240 and the back layer 210 so that it is easy for the user to hold and remove.

특히, 접착층(230)의 폭을 중간 크기로 하는 이유는 도4와 같이 보관을 위해 롤 형태로 권취될 때 보조이형층(250)과의 계면에서의 분리성을 높이기 위함이다.In particular, the reason for the intermediate width of the adhesive layer 230 is to increase the separability at the interface with the auxiliary release layer 250 when wound in a roll form for storage as shown in FIG. 4.

만약, 보조이형층(250)과 동일 폭을 유지하게 되면 떼어내기가 쉽지 않게 되기 때문에 이와 같이 서로 다른 폭을 갖도록 구성하는 것도 본 발명의 특징중 하나이다.If the width of the auxiliary release layer 250 and the same width is maintained, it is difficult to remove it. Therefore, it is also one of the characteristics of the present invention to have different widths.

이에 더하여, 본 발명에서는 상기 수지층(240)을 형성할 때 에폭시수지액을 성형용 수지액으로 하여 실크스크린 인쇄방식으로 인쇄하여 격자, 즉 망사형태를 갖도록 구성할 수도 있다.In addition, in the present invention, when the resin layer 240 is formed, the epoxy resin solution may be used as a molding resin solution and printed in a silk screen printing method to have a grid, that is, a mesh shape.

이 경우, 상기 수지액에는 상기 에폭시수지액 100중량부에 대해 삼불화붕소아민착염 15중량부와, 불소알킬실란 5중량부를 더 첨가하여 사용할 수 있다.In this case, 15 parts by weight of boron trifluoride amine complex salt and 5 parts by weight of fluoroalkylsilane may be further added to the resin solution based on 100 parts by weight of the epoxy resin solution.

이때, 삼불화붕소아민착염은 안정적인 점착강도 유지 및 내화학성을 유지하기 위해 첨가되고, 불소알킬실란은 에폭시수지 표면에 침유된 가공성 표면을 형성하여 활락성을 증대시켜 이형성을 양호하게 하기 위해 첨가된다.At this time, the boron trifluoride amine complex salt is added to maintain stable adhesive strength and chemical resistance, and fluorine alkylsilane is added to increase slideability by forming a processable surface immersed in the epoxy resin surface to improve the release property. .

아울러, 상기 접착층(230)을 구성하는 접착액은 통상 에폭시수지로 이루어지지만, 본 발명에서는 완충성과 내후성을 확보할 수 있도록 폴리아크릴수지 100중량부에 대해 폴리아크릴산나트륨 10중량부와, 아크릴산 에스테르 5중량부와, 페트롤륨술포네이트 2중량부와, 규산칼슘 2중량부를 첨가 혼합하여 사용할 수 있다.In addition, the adhesive solution constituting the adhesive layer 230 is usually made of an epoxy resin, but in the present invention, 10 parts by weight of sodium polyacrylate and 5 parts by weight of acrylic acid ester per 100 parts by weight of the polyacrylic resin to ensure buffering and weather resistance. It can be used by adding and mixing parts by weight, 2 parts by weight of petroleum sulfonate, and 2 parts by weight of calcium silicate.

이 경우, 폴리아크릴산나트륨은 젤화 특성 때문에 완충성이 매우 우수하고 분산성이 좋을 뿐만 아니라, 점조성이 우수하기 때문에 첨가되고; 아크릴산 에스테르는 내후성과 강력한 점착력을 확보하기 위해 첨가되며; 페트롤륨술포네이트는 변색 방지를 위해 첨가되고; 규산칼슘은 인체 무해성이 우수하고 저흡수력과 저휘발성 때문에 수지의 점착성을 강화시키면서 코팅면의 광택성을 확보하기 위해 첨가된다.In this case, sodium polyacrylate is added because of its gelling property, because it has excellent buffering properties and good dispersibility, as well as excellent viscosity; Acrylic acid ester is added to ensure weather resistance and strong adhesion; Petroleum sulfonate is added to prevent discoloration; Calcium silicate is added to secure the glossiness of the coated surface while reinforcing the adhesiveness of the resin because of its excellent harmlessness to the human body, low water absorption and low volatility.

이와 같이 구성된 본 발명에 따른 양면테이프를 일반 서류용 대봉투에 부착시킨 후 개봉부 밀폐를 위해 접이부를 20회 떼고 붙이는 것을 반복하였다.After attaching the double-sided tape according to the present invention configured as described above to a large envelope for general documents, it was repeated to remove and attach the fold part 20 times to seal the opening part.

이때, 떼고 붙이기 쉬운 정도를 확인하기 위해 접이부가 찢어지거나 양면테이프가 뜯어지거나 망가지는 경우가 있는지 있으면 그 횟수는 얼마나 되는지를 확인하였다.At this time, in order to check the degree of easy peeling and sticking, if there is a case where the fold portion is torn or the double-sided tape is torn or broken, the number of times was checked.

확인 결과, 20회 동작 중 불량은 한번도 발생하지 않았다. 이에 따라, 이형성이 매우 좋음을 확인할 수 있었다.As a result of checking, no defect occurred during the 20th operation. Accordingly, it was confirmed that the releasability was very good.

100: 봉투
210: 후지층
220: 이형층
230: 접착층
240: 수지층
250: 보조이형층100: envelope
210: Fuji layer
220: release layer
230: adhesive layer
240: resin layer
250: auxiliary release layer

Claims (4)

봉투(100)의 접이부(110) 내면에 부착되어 봉투의 개봉부를 밀봉하는데 사용되는 양면테이프로서, 접착층(200)-수지층(210)-이형층(300)-후지층(310)으로 된 층구조를 갖되,
상기 후지층(310)은 이형층과 함께 분리되는 이형필름이며;
상기 이형층(300)은 UV 처리된 실리콘수지로 형성되며;
상기 수지층(210)은 망사형태로 형성되어 접착층(200)의 접착액 일부가 망사형태의 빈 공간으로 유입되어 채워지도록 구성되어,
상기 후지층을 분리하면 후지층과 함께 이형층이 수지층에서 분리되며,
봉투의 접이부(110) 내면은 접착제의 접착성질로 인해 접착제와 접착되고, 봉투(100)의 접이부(110)를 접었을 때 봉투의 외면은 수지층의 망사형태의 빈공간으로 채우진 접착액으로 점착되는 것을 특징으로 하는 봉투용 무기재 양면테이프.
As a double-sided tape attached to the inner surface of the fold portion 110 of the envelope 100 and used to seal the opened portion of the envelope, the adhesive layer 200-the resin layer 210-the release layer 300-the back layer 310 Have a layered structure,
The Fuji layer 310 is a release film separated together with the release layer;
The release layer 300 is formed of a UV-treated silicone resin;
The resin layer 210 is formed in a mesh shape so that a part of the adhesive solution of the adhesive layer 200 flows into and fills the empty space in the mesh shape,
When the fuji layer is separated, the release layer is separated from the resin layer together with the fuji layer,
The inner surface of the fold portion 110 of the envelope is adhered to the adhesive due to the adhesive property, and when the fold portion 110 of the envelope 100 is folded, the outer surface of the envelope is filled with an empty space in the form of a mesh of the resin layer. Inorganic double-sided tape for envelopes, characterized in that adhesion.
 제1항에 있어서,
상기 양면테이프를 롤 형태로 권취할 수 있도록 상기 후지층의 외면에 보조이형층을 더 형성하여, 접착층(200)-수지층(210)-이형층(300)-후지층(310)-보조이형층(320)으로 반복형성되도록 한 것을 특징으로 하는 봉투용 무기재 양면테이프.
The method of claim 1,
By further forming an auxiliary release layer on the outer surface of the Fuji layer so that the double-sided tape can be wound in a roll form, the adhesive layer 200-the resin layer 210-the release layer 300-the Fuji layer 310-the auxiliary release type Inorganic double-sided tape for envelopes, characterized in that the layer 320 is formed to be repeated.
 제2항에 있어서,
상기 수지층(210)과 후지층(310)은 동일 폭을 갖도록 형성하고, 접착층(200)은 수지층(210) 보다 작은 폭을 갖도록 형성하며, 이형층(300)은 접착층(210) 보다 작은 폭을 갖도록 형성한 것을 특징으로 하는 봉투용 무기재 양면테이프.
The method of claim 2,
The resin layer 210 and the Fuji layer 310 are formed to have the same width, the adhesive layer 200 is formed to have a smaller width than the resin layer 210, and the release layer 300 is smaller than the adhesive layer 210 Inorganic double-sided tape for envelopes, characterized in that formed to have a width.
 제1항에 있어서,
상기 수지층(210)은 에폭시수지액을 수지액으로 하여 실크스크린 인쇄방식으로 인쇄하여 망사형태를 갖도록 구성하되,
상기 수지액에는 상기 에폭시수지액 100중량부에 대해 삼불화붕소아민착염 15중량부와, 불소알킬실란 5중량부가 더 첨가된 것을 특징으로 하는 봉투용 무기재 양면테이프.The method of claim 1,
The resin layer 210 is configured to have a mesh shape by printing in a silk screen printing method using an epoxy resin solution as a resin solution,
Inorganic double-sided tape for envelopes, characterized in that 15 parts by weight of boron trifluoride amine complex salt and 5 parts by weight of fluorine alkylsilane are further added to the resin solution based on 100 parts by weight of the epoxy resin solution.
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* Cited by examiner, † Cited by third party
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