KR20220003701A - A cold packing bag - Google Patents

A cold packing bag Download PDF

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Publication number
KR20220003701A
KR20220003701A KR1020200081226A KR20200081226A KR20220003701A KR 20220003701 A KR20220003701 A KR 20220003701A KR 1020200081226 A KR1020200081226 A KR 1020200081226A KR 20200081226 A KR20200081226 A KR 20200081226A KR 20220003701 A KR20220003701 A KR 20220003701A
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South Korea
Prior art keywords
paper
envelope
cold storage
pulp
present
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KR1020200081226A
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Korean (ko)
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정정일
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정정일
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Priority to KR1020200081226A priority Critical patent/KR20220003701A/en
Publication of KR20220003701A publication Critical patent/KR20220003701A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/79—Coating; Impregnating; Waterproofing; Decoating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0096—Lining or sheathing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04—Kraft or sulfate pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/06—Vegetable or imitation parchment; Glassine paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/32—Multi-ply with materials applied between the sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0016—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom made from already formed bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/102—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from essentially rectangular sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2170/00—Construction of flexible containers
    • B31B2170/10—Construction of flexible containers interconnected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2241/00—Making bags or boxes intended for a specific use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/12—Coating on the layer surface on paper layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/028—Paper layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
    • B32B2317/122—Kraft paper

Abstract

The present invention relates to an envelope for cold storage packaging, and more specifically to an envelope in which a coating layer is formed on the inner surface of a paper sheet to provide hydrophobicity and airtightness. On the outer side, heat preservation is possible and damage is prevented by a laminated sheet molten and laminated with an LDPE furnace between a pair of parchment paper. An object of the present invention is to provide the envelope that can be easily carried and used for multiple purposes in a form of an envelope made of paper and capable of performing cold-preserved packaging.

Description

보냉을 위한 봉투{A cold packing bag}{A cold packing bag}

본 발명은 보냉 포장을 위한 봉투에 관한 것으로, 좀 더 구체적으로 설명하면 내측면으로 소수성과 기밀성이 가능한 코팅층이 구비되고, 외측면으로는 보온이 가능하면서 훼손을 방지토록 한 것이다.The present invention relates to an envelope for cold storage packaging, and more specifically, a coating layer capable of hydrophobicity and airtightness is provided on the inner surface, and heat retention is possible and damage is prevented on the outer surface.

일반적으로 보냉을 위해 사용하는 포장방식은 덮개를 사용한 스티로폼 박스로 사용되는데 이러한 스티로폼 박스는 친환경적이지 못하다는 단점이 있다.In general, the packaging method used for cold storage is a styrofoam box using a cover, but this styrofoam box has a disadvantage in that it is not eco-friendly.

따라서 최근에는 친환경적인 종이를 사용하여 보냉이 가능한 포장방식을 제안하고 있지만 이러한 것들은 대부분 박스의 형태로 이루어진다.Therefore, recently, a packaging method that can be kept cold using eco-friendly paper has been proposed, but most of these are made in the form of a box.

즉 공기층이 구비되는 골판지를 사용한 포장방식을 채용하게 되는데 이러한 방식은 골판지가 습에 약하여 실질적인 보냉에서는 사용이 불가능한 것이다.In other words, a packaging method using corrugated cardboard provided with an air layer is adopted, but this method cannot be used in practical cooling because the corrugated cardboard is weak to moisture.

따라서 이러한 골판지 박스의 내측면이나 외측면에 내수성이 구비되게 코팅을 하게 되는데 이러한 코팅작업과 이러한 코팅층이 구비되는 원판지를 골심지와 접착하기 위하여는 코팅층에 의하여 또 다른 어려움이 존재하여 실질적으로 노출되는 원판지의 일측면에만 코팅을 하게 되는 것이다.Therefore, the inner surface or the outer surface of the corrugated cardboard box is coated to provide water resistance. In order to adhere this coating operation and the original cardboard provided with such a coating layer to the corrugated core, another difficulty exists due to the coating layer and the original exposed substantially. Only one side of the cardboard is coated.

그러나 이럴 경우에 코팅되지 않은 부분으로 습이 침투되어 젖게되면서 골판지가 쉽게 찢어지거나 회손되어 실질적인 보냉이 유지될 수 없는 것이다.However, in this case, as moisture penetrates into the uncoated part and gets wet, the corrugated cardboard is easily torn or damaged, and practical cooling cannot be maintained.

또한 이러한 골판지를 사용할 경우에도 휴대시 불편함이 존재하고 이러한 불편함은 결국 사용의 범위가 제한적이라는 단점이 존재하는 것이다.In addition, even when using such a corrugated cardboard, there is an inconvenience in carrying, and this inconvenience has a disadvantage that the range of use is limited.

따라서 휴대의 용이성과 사용의 다양성을 제공하기 위하여 본 발명은 지제이면서 보냉포장이 가능한 봉투형태로 이루어지도록 한 것이다.Therefore, in order to provide ease of portability and versatility of use, the present invention is made in the form of a paper-made bag that can be packaged in a cold storage.

이를 위해 본 발명은 종이시트를 가압하여 조밀도를 증가토록 한후 내측면에 수분 침투 문제를 해소할 수 있으면서도 열에 의하여 접착이 가능토록 일정두께로 도포/함침토록 한 수성의 코팅액을 도포하여 코팅층을 형성하고, 외측면으로는 2장의 노루지의 사이에 LDPE를 용융하여 티다이방식으로 용융하여 용융액을 도포하면서 합지토록 한 합지시트를 합지토록 한 것이다.To this end, the present invention forms a coating layer by applying a water-based coating solution that is applied/impregnated to a certain thickness to enable adhesion by heat while being able to solve the problem of moisture penetration on the inner surface after pressing the paper sheet to increase the density. On the outer side, LDPE is melted between two old paper sheets and melted in a T-die method to laminate the laminated sheets while applying the melt.

본 발명에서의 종이시트는 펄프의 장,단성 섬유를 투입하여 배합과 동시에 고해공정과 탈기 및 정선과정을 거쳐 조성토록 하고 상기와 같이 조성된 펄프를 초지공정을 거쳐 리릴러와 로테이터를 통하여 습도가 15%이상이 되도록 하는 가습공정을 거쳐 얻어진 용지를 표면처리작업후 슈퍼캘린더에 의해 고온과 고압으로 얻어진 글라신지를 사용하는 것이다.The paper sheet in the present invention is formed by injecting the long and short fibers of the pulp and going through the beating process, degassing and selection process at the same time as mixing, and the pulp prepared as described above is subjected to the papermaking process, and the humidity is reduced through the reeler and the rotator. After surface treatment of the paper obtained through the humidification process to make it more than 15%, glassine paper obtained at high temperature and high pressure by the super calendar is used.

또한, 본 발명의 수성의 코팅액은 동물성수지의 하나인 열대지방에서 자생하는 랙(Lac)벌레가 분비한 진액을 정제하고 표백하여 만든 수지에 알콜을 혼합하여 제조된 침투성용액이거나 친수성기를 포함하지 않는 고분자중합체로서, 기체 및 수분 투과 차단성과 내열성이 우수한 폴리염화비닐리덴 또는 염화비닐 또는 아크릴로니트릴 또는 폴리프로필렌 중 어느 하나 이상의 공중합체로 이루어진 것이다.In addition, the aqueous coating solution of the present invention is a penetrating solution prepared by mixing alcohol with a resin made by purifying and bleaching the extract secreted by Lac worms that grow wild in the tropics, which is one of the animal resins, or does not contain a hydrophilic group. As a high molecular polymer, it is made of any one or more copolymers of polyvinylidene chloride, vinyl chloride, acrylonitrile, or polypropylene, which has excellent gas and moisture permeation barrier properties and heat resistance.

또한, 본 발명의 노루지는 원가를 절감하기 위하여 사용되는 것으로, 크래프트 펄프를 원료하여 내구성 및 보존성이 우수할 뿐만 아니라 친환경적으로 사용되는 미표백의 크라프트지이거나 혹은 장섬유인 고가의 천연 미표백의 크라프트펄프를 원료로 사용하는 라이나지이거나 인체에 무해하면서 라이나지 혹은 크라프트지보다 고강도를 유지하는 컵지일 수 있는 것이다.In addition, the noroji of the present invention is used to reduce the cost, and it is an expensive natural unbleached kraft that is an environmentally friendly unbleached kraft paper or long fiber that is used as a raw material for kraft pulp and has excellent durability and preservation properties. It may be liner paper that uses pulp as a raw material, or cup paper that is harmless to the human body and maintains higher strength than liner paper or kraft paper.

또한, 본 발명의 봉지는 전개시 직사각형의 형상으로 이루어지는 원지의 테두리에 접합면을 형성하고 동시에 내측에는 세로방향으로 평행한 복수의 절첩라인에 의해 접혀지면에 내공간을 구비하기 위한 다수의 측판들을 형성하고 각각의 측판은 가로방향으로 형성된 굽힘라인에 의해 접혀지면서 4변을 가진 측면을 형성하고 상기 측면을 중심으로 상부 또는 하부에는 각각 상면 또는 바닥면을 형성하여 전체적으로 가로방향으로 길게 형성된 4각형 형상의 원지에 의해 복잡한 절단이나 절개없이 용이하게 제작되도록 한 것이다In addition, the bag of the present invention forms a bonding surface on the edge of the base paper made of a rectangular shape when unfolded, and at the same time, a plurality of side plates for providing an inner space on the surface are folded by a plurality of fold lines parallel to the longitudinal direction on the inside. and each side plate is folded by a bending line formed in the horizontal direction to form a side surface having four sides, and an upper surface or a bottom surface is formed in the upper or lower part, respectively, based on the side surface to form a rectangular shape elongated in the horizontal direction as a whole It is designed to be easily manufactured without complicated cutting or incision by the

따라서 본 발명은 내측면에 열접착이 가능토록 수성코팅액으로 도포/함침된 종이시트를 원지로 사용하여 외측면에 보온성이 가능한 노루지 등을 LDPE의 용융액으로 도포합지토록 하여 합지된 합지시트를 합지토록 함으로서 봉투가 얇은 두께이면서도 내측면의 방수성과 외측면의 보온성에 의하여 보냉포장이 가능하게 되는 것이고, 보냉효과는 3중의 차단층에 의하여 더욱 우수한 보냉포장이 가능하게 될 수 있는 것이다.Therefore, the present invention uses a paper sheet coated/impregnated with a water-based coating solution for thermal bonding on the inner side as a base paper, and laminating the laminated lamination sheet by applying a molten LDPE to the outer side of the old paper, etc. By doing so, the bag is thin, but cold packaging is possible by the waterproofness of the inner surface and the heat retention of the outer surface, and the cold insulation effect can make better cold packaging possible by the triple barrier layer.

또한 봉투의 형태로 이루어져 휴대의 용이성은 물론 보관이나 운반의 용이성도 제공가능하게 될 수 있는 것이다.In addition, since it is made in the form of an envelope, it is possible to provide not only portability, but also ease of storage or transport.

도 1은 본 발명의 실시 예에 따른 봉투의 외관사시도...
도 2는 본 발명의 봉투의 제작과정을 단계적으로 나타낸 일실시예.
도 3은 본 발명의 종이시트에 합지시트를 합지한 상태의 일실시예...
도 4는 본 발명의 종이시트의 제조과정을 도시한 블럭도...
도 5는 본 발명의 합지시트의 합지과정을 도시한 일실시예.
도 6은 본 발명의 봉투의 차단성능을 도시한 일실시예....1 is an external perspective view of an envelope according to an embodiment of the present invention...
Figure 2 is an embodiment showing a step-by-step manufacturing process of the envelope of the present invention.
Figure 3 is an embodiment of a state in which the laminated sheet is laminated to the paper sheet of the present invention...
Figure 4 is a block diagram showing the manufacturing process of the paper sheet of the present invention...
Figure 5 is an embodiment showing the lamination process of the laminated sheet of the present invention.
Figure 6 is an embodiment showing the blocking performance of the envelope of the present invention....

먼저, 본 발명의 명세서 및 청구범위에 사용되는 용어는 사전적인 의미로 한정 해석되어서는 아니되며, 발명자는 자신의 발명을 최선의 방법으로 설명하기 위해 용어의 개념을 적절히 정의할 수 있다는 원칙에 입각하여, 본 발명의 기술적인 사상에 부합되는 의미와 개념으로 해석되어야 할 것이다.First, the terms used in the specification and claims of the present invention should not be construed as being limited to dictionary meanings, and based on the principle that the inventor can appropriately define the concept of the term to describe his invention in the best way. Therefore, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

따라서 본 명세서에 기재된 실시 예 및 도면에 도시된 구성은 본 발명의 바람직한 실시 예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 표현하는 것은 아니므로, 출원 시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 존재할 수 있음을 이해하여야 할 것이다.Therefore, the configurations shown in the embodiments and drawings described in this specification are only preferred embodiments of the present invention, and do not express all the technical ideas of the present invention, so various equivalents and It should be understood that variations may exist.

이하, 본 발명을 실시하기 위한 구체적인 내용은 첨부된 도면을 참고하여 상세히 설명하기로 한다.Hereinafter, specific details for carrying out the present invention will be described in detail with reference to the accompanying drawings.

도1 내지 도6에 도시된 바와 같이 본 발명의 봉투(1) 구성은 종이시트(12)를 가압하여 조밀도를 증가토록 한후 내측면에 수분 침투 문제를 해소할 수 있으면서도 열에 의하여 접착이 가능토록 일정두께로 도포/함침토록 한 수성의 코팅액을 도포하여 코팅층(11)을 형성하고, 외측면으로는 2장의 노루지(21,23)의 사이에 LDPE(22)를 티다이방식으로 용융 도포하여 층을 형성한 후 합지토록 한 합지시트(20)를 합지토록 한 것이다.As shown in Figs. 1 to 6, the configuration of the envelope 1 of the present invention is to increase the density by pressing the paper sheet 12, and then to solve the problem of moisture penetration into the inner surface and to enable adhesion by heat. The coating layer 11 is formed by applying an aqueous coating solution to be applied/impregnated to a certain thickness, and on the outer surface, LDPE 22 is melted and applied between two sheets of green paper 21 and 23 in a T-die method. After forming the layer, the laminated sheet 20 was laminated.

이때 코팅층(11)은 동물성수지의 하나인 열대지방에서 자생하는 랙(Lac)벌레가 분비한 진액을 정제하고 표백하여 만든 수지에 알콜을 혼합하여 제조된 침투성용액이거나 친수성기를 포함하지 않는 고분자중합체로서, 기체 및 수분 투과 차단성과 내열성이 우수한 폴리염화비닐리덴 또는 염화비닐 또는 아크릴로니트릴 또는 폴리프로필렌 중 어느 하나 이상의 공중합체로 이루어진 것이다.At this time, the coating layer 11 is a penetrating solution prepared by mixing alcohol with a resin made by purifying and bleaching the extract secreted by Lac worms that are native to the tropics, which is one of the animal resins, or a high molecular polymer that does not contain a hydrophilic group. , is made of a copolymer of at least one of polyvinylidene chloride, vinyl chloride, acrylonitrile, or polypropylene, which has excellent gas and moisture permeation barrier properties and heat resistance.

즉, 상기 수성 코팅액은 열접착 가능할 뿐만 아니라 기체 및 수분 투과 차단성과 내열성이 우수한 폴리염화비닐리덴 또는 염화비닐 또는 아크릴로니트릴 중 어느 하나 이상의 공중합체로 이루어지는 것이 바람직하고, 실시 예에 따라서는 카올린, 화이트 카본, 틸크, 등의 무기안료를 포함할 수 있는 것이다.That is, the aqueous coating solution is preferably made of any one or more copolymers of polyvinylidene chloride, vinyl chloride, or acrylonitrile, which is not only heat-adhesive, but also has excellent gas and moisture permeation barrier properties and heat resistance, and kaolin, It may contain inorganic pigments such as white carbon, teak, and the like.

그리고 이러한 수성 코팅액은 도포시 종이시트(12)의 공극을 메울수 있으면서 건조불량이나 원가상승을 유발하지 않을 수 있을 정도로 도포/함침 후 건조된 것이다.And this aqueous coating solution is dried after application/impregnation to such an extent that it can fill the voids of the paper sheet 12 during application and not cause drying failure or cost increase.

또한, 종이시트(12)는 펄프의 장,단성 섬유를 투입하여 배합과 동시에 고해공정과 탈기 및 정선과정을 거쳐 조성토록 하고 상기와 같이 조성된 펄프를 초지공정을 거쳐 리릴러와 로테이터를 통하여 습도가 15%이상이 되도록 하는 가습공정을 거쳐 얻어진 용지를 표면처리작업후 슈퍼캘린더에 의해 고온과 고압으로 얻어진 글라신지를 사용한 것이다.In addition, the paper sheet 12 is formed by injecting the long and short fibers of the pulp through the beating process, degassing, and selection process at the same time as mixing, and the pulp prepared as described above is subjected to the papermaking process and humidity through the reeler and the rotator. Glassine paper obtained at high temperature and high pressure by a super calendar after surface treatment of the paper obtained through the humidification process so that the is more than 15% is used.

즉, 상기 종이시트(12)는 사이징(sizing)공정 또는 코팅공정을 통해 수분의 침투성(penetration)이 억제되게 표면처리 작업을 진행한 후, 열과 압력을 가해 압착하는 슈퍼칼랜더(calendar)공정을 통해 그 밀도를 향상시켜, 종이 자체가 가진 공극 및 표면 변화에 상관없이 최대한 균일하게 수성코팅액이 도포/함침/분사되게 한 것이다. 바람직하게는 분사방식으로 침투성용액이 종이에 침투되어 최대한 균열 등을 방지하면서 내수성/내유성 및 기밀성이 유지되게 할 수도 있는 것이다.That is, the paper sheet 12 is subjected to a surface treatment to suppress penetration of moisture through a sizing process or a coating process, and then pressurized by applying heat and pressure through a super calendar process. By improving its density, the aqueous coating solution is applied/impregnated/sprayed as uniformly as possible regardless of the voids and surface changes of the paper itself. Preferably, the penetrating solution penetrates into the paper by spraying to prevent cracks and the like as much as possible while maintaining water/oil resistance and airtightness.

여기서 사이징공정 또는 코팅공정은 작업시 전분, 전분유도체, 폴리비닐 알콜, 카르복시메틸 셀룰로스, 라텍스 및 이들의 혼합물로 이루어진 표면처리제가 투입되어 수분침투가 억제되게 하고, Here, in the sizing process or coating process, a surface treatment agent consisting of starch, starch derivative, polyvinyl alcohol, carboxymethyl cellulose, latex, and mixtures thereof is added during operation to suppress moisture penetration,

캘린더공정시에는 300m/min 이상의 속도와 200kN 이상의 압력에서 90 ~ 160℃의 온도로 가압하여 그 조직 및 밀도가 치밀해지게 하여 균일하게 수성코팅액이 도포/함침되게 하면서 높은 평활도와 광택을 얻을 수 있도록 한 것이다.In the calendering process, pressurized at a temperature of 90 ~ 160℃ at a speed of 300m/min or more and a pressure of 200kN or more to make the structure and density dense, so that the aqueous coating solution is uniformly applied/impregnated to obtain high smoothness and gloss. did it

그리고 이러한 종이시트가 훼손되지 않게 건조한 후 외측면에 접합필름 또는 접합층(13)을 형성한 후 합지시트와 합지하는 것이다. 이때 접합층은 재활용되게 전분과 같은 천연의 재질을 접합액을 사용하는 것이 바람직하다.And after the paper sheet is dried so as not to be damaged, a bonding film or bonding layer 13 is formed on the outer surface and then laminated with the laminated sheet. In this case, it is preferable to use a bonding solution made of a natural material such as starch so that the bonding layer is recycled.

또한, 합지시트(20)는 2장의 노루지(21,23)의 사이에 LDPE(22)를 티다이방식으로 용융하여 도포하여 합지토록 한 것으로, 특히 한 쌍의 노루지(21,23) 사이에 위치한 LDPE(22)에 의해 결합 비닐막이 형성되면서 기밀(투과성이 완전히 차단되게)되어져 노루지의 보온성에 의해 보냉 가능하게 하는 것이다.In addition, the lamination sheet 20 is made by melting and applying the LDPE 22 between the two sheets of green paper 21 and 23 in a T-die method so as to be laminated, especially between the pair of green papers 21 and 23 As the bonding vinyl film is formed by the LDPE 22 located in the

이때의 노루지(21,23)는 원가를 절감하기 위하여 사용되는 것으로, 실시 예에 따라서는 크래프트 펄프를 원료하여 내구성 및 보존성이 우수할 뿐만 아니라 친환경적으로 사용되는 미표백의 크라프트지이거나 혹은 장섬유인 고가의 천연 미표백의 크라프트펄프를 원료로 사용하는 라이나지이거나 인체에 무해하면서 라이나지 혹은 크라프트지보다 고강도를 유지하는 컵지일 수 있는 것이다.At this time, the noroji 21 and 23 are used to reduce the cost, and depending on the embodiment, kraft pulp is used as a raw material and thus has excellent durability and storage properties as well as unbleached kraft paper or long fiber used environmentally friendly. It may be liner paper that uses expensive natural unbleached kraft pulp as a raw material, or cup paper that is harmless to the human body and maintains higher strength than liner paper or kraft paper.

또한, 본 발명은 전개시 직사각형의 형상을 이루는 종이시트를 원지(30)로 하여, 상기 원지의 테두리에 접합면(31)을 형성하고 동시에 세로방향으로 평행한 복수의 절첩라인(32)에 의해 내공간이 구비되게 다수의 측판들을 형성하고, 각각의 측판은 가로방향으로 형성된 굽힘라인(33)에 의해 접혀지면서 중앙에 4변을 가진 측면(34)을 형성하고, 상기 측면들은 절첩라인(32)과 또 다른 절첩라인(32a)에 의해 중첩되게 접혀졌을 때에 밀착된 측면의 하단끼리 일정한 폭이 구비되게 접착되는 동시에 양측단이 대각선을 따라 이웃한 측면끼리 대각선(35)으로 중첩되게 접혀지면서 접합된 삼각형접합면(31a)에 의해 바닥면(36)을 형성하여, 전체적으로 가로방향으로 길게 형성된 4각형 형상의 원지에 의해 복잡한 절단이나 절개없이 용이하게 봉지 형상으로 제작되게 한 것이다.In addition, the present invention uses a paper sheet having a rectangular shape when unfolded as the base paper 30, forming a bonding surface 31 on the edge of the base paper, and simultaneously forming a plurality of fold lines 32 parallel to the longitudinal direction. A plurality of side plates are formed to provide an inner space, and each side plate is folded by a bending line 33 formed in the transverse direction to form a side surface 34 having four sides in the center, and the side plates are folded lines 32 ) and another fold line (32a), the lower ends of the closely adhered sides are adhered to have a certain width, and at the same time, both ends are overlapped with adjacent sides along a diagonal line (35). The bottom surface 36 is formed by the triangular joint surface 31a, so that it can be easily manufactured into a bag shape without complicated cutting or incision by using a rectangular-shaped base paper that is formed long in the horizontal direction as a whole.

이때 절첩라인(32)은 내측으로 접혀지는 절첩라인(32)과 외측으로 접혀지는 또 다른 절첩라인(32a)이 구성되어 가운데 위치한 측면을 중심으로 양측에 위치한 측면이 중첩되게 접혀져 있도록 하고, 상기 종이시트(12) 내측에 형성된 코팅층(11)에 의해 열접착이 가능하면서 내공간 안쪽에 내용물을 담은 후 측면의 상단에도 바닥면과 동일한 방식으로 접합하여 상면(37)을 형성함으로 박스 형상으로 만들 수도 있는 것이다.At this time, the folding line 32 is composed of a folding line 32 that is folded inward and another folding line 32a that is folded outward so that the sides located on both sides around the side located in the center are folded to overlap, and the paper While thermal bonding is possible by the coating layer 11 formed on the inside of the sheet 12, the contents are placed inside the inner space and then joined to the top of the side in the same manner as the bottom to form the upper surface 37 to form a box shape. there will be

따라서 본 발명은 내측면에 열접착이 가능토록 수성코팅액으로 도포/함침된 종이시트(12)의 외측면에 보온이 가능한 한 쌍의 노루지 사이에 LDPE의 용융액으로 도포합지토록 하여 합지된 합지시트(20)를 합지함으로써, 봉투가 얇은 두께이면서도 내측면의 방수성과 외측면의 보온성에 의하여 보냉포장이 가능하게 되는 것이고, 보냉효과는 3중의 차단층에 의하여 더욱 우수한 보냉포장이 가능하게 되는 것이다.Therefore, the present invention is a laminated sheet laminated by applying a melt of LDPE between a pair of old paper sheets that can be kept warm on the outer surface of the paper sheet 12 coated/impregnated with an aqueous coating liquid to enable thermal bonding on the inner surface. By laminating (20), although the bag is thin, cold packaging is possible due to the waterproofness of the inner surface and the heat insulation of the outer surface, and the cold insulation effect is more excellent cold packaging is possible by the triple barrier layer.

더욱이 본 발명은 봉투의 형태로 이루어져 휴대의 용이성은 물론 보관이나 운반의 용이성도 가지게 되는 것이다.Furthermore, the present invention is made in the form of an envelope, so that it has not only portability, but also ease of storage or transport.

지금까지 본 발명에 대해 첨부된 도면을 참고하여 설명하였으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양하게 변형 및 균등이론에 의해 용이하게 실시할 수 있을 것이다. 따라서 본 발명의 진정한 기술적 보호범위는 특허청구범위에 의해서 정해져야 할 것이다.Although the present invention has been described with reference to the accompanying drawings, this is merely exemplary, and those of ordinary skill in the art can easily implement various modifications and equivalents therefrom. There will be. Therefore, the true technical protection scope of the present invention should be defined by the claims.

1:봉투 11:코팅층
12:종이시트 13:접합층
20:합성시트 21:노루지
22:LDPE 23:노루지
30:원지 31:접합면
31a:삼각접합면 32:절첩라인
32a:또 다른 절첩라인 33:굽힘라인
34:측면 35:대각선
36:바닥면 37:상면1: Envelope 11: Coating layer
12: paper sheet 13: bonding layer
20: synthetic sheet 21: noroji
22:LDPE 23: Noroji
30: base paper 31: bonding surface
31a: triangular joint surface 32: fold line
32a: another fold line 33: bend line
34: side 35: diagonal
36: bottom surface 37: top surface

Claims (5)

종이시트를 가압하여 조밀도를 증가토록 한후 내측면에 수분 침투 문제를 해소할 수 있으면서도 열에 의하여 접착이 가능토록 도포/함침토록 한 수성의 코팅액에 의해 코팅층을 형성하고, 외측면으로는 2장의 노루지의 사이에 LDPE를 용융하여 티다이방식으로 용융하여 용융액을 도포하면서 합지토록 한 합지시트를 합지한 보냉을 위한 봉투After pressurizing the paper sheet to increase the density, a coating layer is formed by an aqueous coating solution that is applied/impregnated to enable adhesion by heat while solving the problem of moisture penetration on the inner surface, and two sheets of roe deer on the outer surface. Envelope for cold storage in which LDPE is melted between lichens and melted in a T-die method to be laminated while applying the melt. 제1항에 있어서,
상기 종이시트는 펄프의 장,단성 섬유를 투입하여 배합과 동시에 고해공정과 탈기 및 정선과정을 거쳐 조성토록 하고 상기와 같이 조성된 펄프를 초지공정을 거쳐 리릴러와 로테이터를 통하여 습도가 15%이상이 되도록 하는 가습공정을 거쳐 얻어진 용지를 표면처리작업후 슈퍼캘린더에 의해 고온과 고압으로 얻어진 글라신지인 보냉을 위한 봉투According to claim 1,
The paper sheet is formed by injecting the long and short fibers of the pulp and going through the beating process, degassing and selection process at the same time as mixing, and the pulp prepared as described above goes through the papermaking process, and the humidity is 15% or more through the reeler and the rotator. After surface treatment, the paper obtained through the humidification process to 제1항에 있어서,
상기 수성의 코팅액은 동물성수지의 하나인 열대지방에서 자생하는 랙(Lac)벌레가 분비한 진액을 정제하고 표백하여 만든 수지에 알콜을 혼합하여 제조된 침투성용액이거나 친수성기를 포함하지 않는 고분자중합체이고, 기체 및 수분 투과 차단성과 내열성이 우수한 폴리염화비닐리덴 또는 염화비닐 또는 아크릴로니트릴 또는 폴리프로필렌 중 어느 하나 이상의 공중합체로 이루어진 보냉을 위한 봉투According to claim 1,
The aqueous coating solution is a permeable solution prepared by mixing alcohol with a resin made by purifying and bleaching the extract secreted by Lac worms that grow wild in the tropics, which is one of the animal resins, or a high molecular polymer that does not contain a hydrophilic group, Envelope for cold storage made of polyvinylidene chloride, vinyl chloride, acrylonitrile, or any one copolymer of polypropylene with excellent gas and moisture permeation barrier and heat resistance 제1항에 있어서,
상기 노루지는 크래프트 펄프를 원료하여 내구성 및 보존성이 우수할 뿐만 아니라 친환경적으로 사용되는 미표백의 크라프트지이거나 혹은 장섬유인 고가의 천연 미표백의 크라프트펄프를 원료로 사용하는 라이나지이거나 혹은 인체에 무해하면서 라이나지 혹은 크라프트지보다 고강도를 유지하는 컵지로 이루어진 보냉을 위한 봉투According to claim 1,
The Noroo paper is unbleached kraft paper that is eco-friendly as well as has excellent durability and storage properties by using kraft pulp as a raw material, or is liner paper using expensive natural unbleached kraft pulp that is long fiber as a raw material, or is harmless to the human body. Envelope for cold storage made of cup paper that maintains higher strength than liner paper or kraft paper 제1항에 있어서,
상기 봉투는 전개시 직사각형의 형상으로 이루는 종이시트를 원지로 하여, 테두리에 접합면을 형성하는 동시에 내측에는 세로방향으로 평행한 복수의 절첩라인에 의해 접혀지면에 내공간을 구비하기 위한 다수의 측판들을 형성하고 각각의 측판은 가로방향으로 형성된 굽힘라인에 의해 접혀지면서 4변을 가진 측면을 형성하고 상기 측면을 중심으로 상부 또는 하부에는 각각 양측단이 대각선 방향으로 중첩되게 접혀져 접합되면서 상면 또는 바닥면을 형성함으로써 전체적으로 가로방향으로 길게 형성된 4각형 형상의 원지에 의해 복잡한 절단이나 절개없이 용이하게 제작되도록 보냉을 위한 봉투According to claim 1,
When the envelope is unfolded, a plurality of side plates for providing an inner space in the ground by using a paper sheet having a rectangular shape as a base paper, forming a bonding surface on the edge, and folding by a plurality of fold lines parallel to the vertical direction on the inside and each side plate is folded by a bending line formed in the horizontal direction to form a side surface having four sides, and both ends are folded to overlap in the diagonal direction on the upper or lower side around the side, respectively, the upper surface or the bottom surface Envelope for cold storage so that it can be easily produced without complicated cutting or incision by the rectangular-shaped base paper formed long in the horizontal direction by forming a
KR1020200081226A 2020-07-01 2020-07-01 A cold packing bag KR20220003701A (en)

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