KR20110030793A - Packing bag with excellent water-proof property - Google Patents

Packing bag with excellent water-proof property Download PDF

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Publication number
KR20110030793A
KR20110030793A KR1020090088391A KR20090088391A KR20110030793A KR 20110030793 A KR20110030793 A KR 20110030793A KR 1020090088391 A KR1020090088391 A KR 1020090088391A KR 20090088391 A KR20090088391 A KR 20090088391A KR 20110030793 A KR20110030793 A KR 20110030793A
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South Korea
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layer
polypropylene
bag
heat
adhesive layer
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KR1020090088391A
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Korean (ko)
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KR101049399B1 (en
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만 석 서
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주식회사 우림
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    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
    • B65D33/22—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps using heat-activatable adhesive
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/26—End- or aperture-closing arrangements or devices using staples or stitches
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Bag Frames (AREA)

Abstract

PURPOSE: A packaging bag with the superior water-proof property is provided to implement a thermal fusing operation with respect to a four-layered sealing material on the sewing line at the lower part of a main body. CONSTITUTION: A main body(1) is based on polypropylene fabric. An opening part(1a) is formed at the upper part of the main body. A sewing line(2) is formed at the lower part of the main body. A thermal fusing operation with respect to a four layered sealant(3) is implemented along the sewing line. The sealant includes a polypropylene fabric layer, a polypropylene adhesive layer, a paper layer, and a thermal fusing adhesive layer.

Description

방수성이 우수한 포장용 포대{Packing bag with excellent water-proof property}Packing bag with excellent water-proof property}

본 발명은 방수성이 우수한 포장용 포대에 관한 것이다.The present invention relates to a packaging bag excellent in waterproofing.

포장용 포대는 곡물, 농수산물, 공산물, 비료등과 같은 섬유화학제품 등(이하 "포장물"이라고 총칭한다)을 담아 운반 및 보관하는데 사용된다.Packaging sacks are used to transport and store grains, agricultural and aquatic products, industrial products, and fibrous chemicals such as fertilizers (hereinafter collectively referred to as "packages").

통상적인 포장용 포대는 표면 및 이면을 연결하는 양측면의 길이 방향을 따라 접철선이 양측면의 중앙부에 형성되어 포장물을 담지 않은 상태에서는 양측면의 접철선이 접혀지며, 포장물을 담은 상태에서는 양측면의 접철선이 펼쳐져지고, 하단부분은 재봉선에 의해 밀폐되어 있으며, 상단부분에는 포장물 투입을 위한 개방부가 형성된 구조를 갖는다.In general packaging bags, a fold line is formed at the center of both sides along the length direction of both sides connecting the front and back sides so that the fold lines of both sides are folded in the state of not containing the package, and the fold lines of both sides are in the state of containing the package. Unfolded, the lower portion is sealed by a seam, the upper portion has a structure formed with an opening for input of the package.

상기 포장용 포대의 사용방법을 구체적으로 살펴보면, 상단 개방부로 포장물을 포장용 포대 안으로 투입한 다음, 상기 상단 개방부를 재봉질하여 밀폐하여 포장작업을 완료한다.Looking at the method of using the packaging bag in detail, the packaging is put into the packaging bag to the upper opening, and then the sewing to seal the upper opening to complete the packaging operation.

사용시에는 사용자가 포장물 투입전 부터 재봉선에 의해 밀폐된 하단 부분을 개봉하여 포장물을 꺼내 사용한다.In use, the user opens the lower part sealed by the seam before inserting the package and takes out the package.

상기 하단 부분을 사용자가 쉽게 개봉할 수 있도록 재봉되어 있다.The lower portion is sewn so that the user can easily open.

상기와 같은 구조를 갖는 종래 포장용 포대의 재질로는 종이, 폴리에틸렌 원사로 제직된 직물, 폴리에틸렌 필름, 폴리프로필렌 원사로 제직된 직물 또는 폴리프로필렌 필름 등이 주로 사용되어 왔다.As a material for the conventional packaging bag having the above structure, paper, a fabric woven from polyethylene yarn, a polyethylene film, a woven fabric of polypropylene yarn, or a polypropylene film has been mainly used.

상기의 종래 포장용 포대들은 포대 본체의 하단부를 재봉선으로 밀폐하기 때문에 재봉시 형성되는 바늘구멍들로 인해 방수성이 저하되는 문제가 있었고, 재봉 부분의 강도 부여를 위해 포대 본체의 하단부를 2겹으로 접은 후 재봉하기 때문에 포대 본체의 손실도 발생하는 문제가 있었다.The conventional packaging bags have a problem that the waterproofness is lowered due to the needle holes formed during sewing because the bottom portion of the bag body is sealed with a sewing line, and after folding the bottom portion of the bag body in two layers to give strength to the sewing portion There was a problem that the loss of the bag body also occurs because of sewing.

이와 같은 문제점을 해결하기 위한 또 다른 종래기술로는 재질이 종이인 포장용 포대의 하단부를 재봉한 후, 재봉선 위에 종이층 / 열융착 접착제층으로 이루고 2층 구조의 실링재를 열융착 하는 방법도 사용되어 왔다.Another conventional technique for solving such a problem is to sew the lower end of the packaging bag made of paper, and then a method of forming a paper layer / heat fusion adhesive layer on the seam and heat sealing the two-layer sealing material. come.

그러나, 상기 종래방법은 포장용 포대 및 실링재의 재질이 종이로 구성되기 때문에 방수성이 전혀 개선되지 못하는 문제가 있었다.However, the conventional method has a problem that the waterproofness is not improved at all because the packaging bag and the sealing material is made of paper.

또 다른 종래기술로서는 재질이 폴리에틸렌 원사로 제직된 직물 또는 폴리에틸렌 필름인 포장용 포대의 하단부를 재봉한 후, 재봉선 위에 폴리에틸렌 직물층 또는 폴리에틸렌 필름층 / 열융착 접착제층으로 구성된 2층 구조의 실링재를 열융착 하는 방법이 제안되어 사용되었으나, 상기 실링재 제조시 폴리에틸렌 직물 층 또는 폴리에틸렌 필름층 위에 열융착 접착제층이 효과적으로 형성되지 않아, 다시 말해 상기의 2층 구조 실링재 제조가 어려워 상업적으로 실시가 불가능하였고, 제조원가도 상승하는 문제가 있었다.Another conventional technique is to sew the lower end of a packaging bag of fabric or polyethylene film made of polyethylene yarn, and then heat seal a two-layer sealing material composed of a polyethylene fabric layer or polyethylene film layer / heat-sealing adhesive layer on the seam. Although the method has been proposed and used, the heat-sealing adhesive layer is not effectively formed on the polyethylene fabric layer or the polyethylene film layer when manufacturing the sealing material, that is, it is difficult to manufacture the two-layer structure sealing material, which is not commercially feasible. There was a problem of ascension.

또 다른 종래 기술로서는 재질이 폴리에틸렌 필름 또는 폴리에틸렌 원사로 제직된 직물인 포장용 포대의 하단부를 봉제하는 대신에 열을 가해 포장용 포대의 하단부 표면과 이면을 직접 융착시켜 실링하는 방법도 제안한 바 있으나, 고가의 폴리에틸렌 사용으로 제조원가가 상응하는 문제점과 실링처리한 부분이 쉽게 벌어져 떨어지는 문제점이 있었다.As another conventional technique, instead of sewing the lower end of a packaging bag made of polyethylene film or polyethylene yarn, a method of applying a heat directly to the lower end surface of the packaging bag and sealing the surface thereof has been proposed. There is a problem that the cost of manufacturing and the sealing portion is easily opened apart by the use of polyethylene.

본 발명은 포장용 포대의 재질로서 폴리프로필렌 원사로 제직된 폴리프로필렌 직물(이하 "폴리프로필렌 직물" 이라고 약칭한다)을 사용하여 제조원가를 저렴하게 하면서도, 포장용 포대의 하단부에 형성된 재봉선으로 인한 방수성 저하 현상을 효과적으로 방지하고, 재봉시 포장용 포대 본체의 손실도 최소화 하는 것을 과제로 한다.The present invention uses a polypropylene fabric woven from polypropylene yarn (hereinafter referred to as "polypropylene fabric") as a material of the packaging bag, while reducing the manufacturing cost, while reducing the waterproofing phenomenon due to the seam formed on the lower end of the packaging bag. It is an object to effectively prevent and to minimize the loss of the packaging bag body during sewing.

이와 같은 과제를 달성하기 위해서, 본 발명에서는 포장용 포대 본체의 하단부에 형성된 재봉선을 덮을 수 있도록 도 3과 같이 폴리프로필렌 직물층 / 폴리프로필렌 접착제층 / 종이층 / 열융착 접착제층으로 구성된 4층 구조의 실링재를 상 기 재봉선을 따라 포장용 포대 본체의 하단부 표면 및 이면 모두에 열융착시켜 포장용 포대를 제조한다.In order to achieve the above object, in the present invention to cover the sewing line formed on the lower end of the packaging bag body as shown in Figure 3 of the four-layer structure consisting of a polypropylene fabric layer / polypropylene adhesive layer / paper layer / heat-sealing adhesive layer The sealing material is heat-sealed to both the lower surface and the rear surface of the packaging bag body along the sewing line to manufacture the packaging bag.

또한, 본 발명에서는 포장용 포대의 재질로 가격이 상대적으로 저렴한 폴리프로필렌 직물을 사용하고 본체 하단부를 재봉시 종래 2겹 접어서 재봉하는 대신에 1겹 그대로 재봉하여 포장용 포대를 제조한다.In addition, the present invention uses a relatively inexpensive polypropylene fabric as a material for the packaging bag and when sewing the lower part of the body instead of sewing two layers of conventional sewing to sew as to produce a packaging bag.

본 발명에 따른 포장용 포대는 포대 본체의 하단부에 형성된 재봉선(4) 위에 상기 4층 구조의 실링재가 열융착되어 있기 때문에 방수성이 우수하고, 포대 본체의 하단부를 2겹으로 접어서 재봉하지 않아도 재봉선 부위의 강도가 유지되기 때문에 포대 본체의 손실(Loss)를 줄일 수 있고, 제조원가도 저렴한 효과가 있다.The packaging bag according to the present invention is excellent in waterproof since the sealing material of the four-layer structure is heat-sealed on the sewing line 4 formed at the lower end of the bag body, and the lower part of the bag body is folded in two layers to sew the sewing line. Since the strength is maintained, the loss of the bag body (Loss) can be reduced, and the manufacturing cost is also inexpensive.

이하, 첨부한 도면등을 통하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

먼저, 본 발명은 도 1에 도시된 바와 같이 종래 포장용 포대의 구조처럼 포대 본체의 상단부에는 포장물을 투입할 수 있도록 개방부(1a)가 형성되어 있고, 포대 본체(1)의 하단부에는 재봉선(2)이 형성되어 있고, 바람직하기로는 양측면 중앙부에는 접철선이 있는 구조를 갖는다.First, the present invention, as shown in Figure 1, the opening portion (1a) is formed in the upper end portion of the bag body, such as the structure of the conventional bag for packaging to put the package, the lower end of the bag body (1) seam (2) ) Is formed, and preferably has a structure with a fold line at the central portions on both sides.

도 1은 본 발명에 따른 포장용 포대의 사시 개략도 이다.1 is a perspective schematic view of a packing bag according to the present invention.

또한, 본 발명은 도 1 내지 도 2에 도시된 바와 같이 상기 포대 본체(1)의 하단부에 재봉선(2)을 덮을 수 있도록 폴리프로필렌 직물층(3a)/폴리프로필렌 접착제층(3b)/종이층(3c)/열융착 접착제층(3d)으로 구성된 4층 구조의 실링재(3)가 상기 재봉선을 따라 포대 본체의 하단부 표면 및 이면 모두에 열융착되어 있는 것을 특징으로 한다.In addition, the present invention is a polypropylene fabric layer (3a) / polypropylene adhesive layer (3b) / paper layer to cover the seam 2 to the lower end of the bag body 1 as shown in Figure 1 to 2 It is characterized in that the sealing material 3 having a four-layer structure composed of (3c) / heat-sealing adhesive layer 3d is heat-sealed to both the lower surface and the rear surface of the bag body along the seam.

도 2는 본 발명에 따른 포장용 포대의 정면도이고, 본 발명에 따른 포장용 포대의 배면도는 도 2의 정면도와 동일하다.2 is a front view of a packaging bag according to the present invention, the rear view of the packaging bag according to the present invention is the same as the front view of FIG.

이때, 상기 실링제(3)를 구성하는 열융착 접착제층(3d)이 포대 본체 하단부의 표면 및 이면과 직접 접촉하여 열융착된다.At this time, the heat-sealing adhesive layer 3d constituting the sealant 3 is in direct contact with the front surface and the rear surface of the bag main body to be heat-sealed.

또한, 상기 폴리프로필렌 직물은 일면에 폴리프로필렌 코팅층이 형성되어 있는 것이 방수성 및 미끄럼 방지성(Anti-slip) 개선에 바람직하다.In addition, it is preferable that the polypropylene fabric has a polypropylene coating layer formed on one surface thereof to improve waterproofness and anti-slip.

상기 4층 구조의 실링재(3)는 도 3에 도시된 바와 같이 폴리프로필렌 직물층(3a)과, 폴리프로필렌 접착제층(3b)과, 종이층(3c)과, 열융착 접착제층(Hotmelt Adhesive layer, 3d)이 차례로 적층된 구조이다.As shown in FIG. 3, the four-layer sealing material 3 includes a polypropylene fabric layer 3a, a polypropylene adhesive layer 3b, a paper layer 3c, and a hot melt adhesive layer. , 3d) is laminated in this order.

도 3은 본 발명을 구성하는 실링재(3)의 단면 모식도이다.3 is a schematic cross-sectional view of the sealing material 3 constituting the present invention.

상기 도 3의 실링재(3)에 있어서, 폴리프로필렌 직물층(3a)은 재봉선 부분에 방수성을 부여하는 역할을 하고, 폴리프로필렌 접착제층(3b)은 폴리프로필렌 직물층(3a)과 종이층(3c) 사이를 접착시키는 역할을 하고, 상기 종이층(3c)은 폴리프로필렌 직물층(3a)에 직접 열융착 접착제층(3d)이 형성되지 않는 문제점을 해결하기 위한 중간 매개체 역할을 하고, 상기 열융착 접착제층(3d)은 상기 실링재(3)를 포대 본체(1)의 표면과 이면에 열융착 시켜주는 역할을 한다.In the sealing material 3 of FIG. 3, the polypropylene fabric layer 3a serves to impart waterproofness to the seam portion, and the polypropylene adhesive layer 3b is a polypropylene fabric layer 3a and a paper layer 3c. ) And the paper layer 3c serves as an intermediate medium for solving the problem that the heat-sealing adhesive layer 3d is not directly formed on the polypropylene fabric layer 3a. The adhesive layer 3d serves to heat seal the sealing material 3 to the front and rear surfaces of the bag body 1.

상기 실링재(3)를 포대 본체의 하단부 중에 재봉선(2)을 덜도록 열융착하는 방법 중 일례로는, 상기 실링재를 포대 본체의 하단부 중에 재봉선(2)을 덮는 위치에 배열한 후, 이를 3단 로울러를 통과시키면서 가열, 가압하는 방법이 사용될 수 있다.As an example of a method of thermally fusion of the sealing material 3 to reduce the sewing line 2 in the lower end of the bag body, the sealing material is arranged in a position covering the sewing line 2 in the lower part of the bag body, and then The method of heating and pressurizing while passing through a roller can be used.

도 1은 본 발명에 따른 방수성이 우수한 포장용 포대의 사시 개략도.1 is a perspective schematic view of a packaging bag excellent in waterproofing according to the present invention.

도 2는 본 발명에 따른 방수성이 우수한 포장용 포대의 정면도.Figure 2 is a front view of the packaging bag excellent in waterproofing according to the present invention.

도 3은 본 발명을 구성하는 실링재(3)의 단면 모식도.3 is a schematic cross-sectional view of a sealing material 3 constituting the present invention.

* 도면중 주요 부분에 대한 부호 설명* Explanation of symbols on the main parts of the drawings

1 : 포장용 포대의 본체1: main body of packing bag

1a : 포장용 포대의 개방부1a: opening of the packing bag

2 : 포장용 포대의 하단부에 형성된 재봉선2: sewing line formed at the lower end of the packing bag

3 : 재봉선(2)를 덮도록 열융착된 실링재3: sealing material heat-sealed to cover the sewing line (2)

3a : 실링재중 폴리프로필렌 직물층3a: polypropylene fabric layer in sealing material

3b : 실링재중 폴리프로필렌 접착제층3b: polypropylene adhesive layer in the sealing material

3c : 실링재중 종이층3c: paper layer in sealing material

3d : 실링재중 열융착 접착제층3d: heat seal adhesive layer in sealing material

Claims (3)

포대 본체(1)는 폴리프로필렌 원사로 제직된 폴리프로필렌 직물이고 포대 본체(1)의 상단부에는 개방부(1a)가 형성되어 있으며 포대 본체(1)의 하단부에는 재봉선(2)이 형성되어 있는 포장용 포대에 있어서, 상기 포대 본체(1)의 하단부에 상기 재봉선(2)을 덮을 수 있도록 폴리프로필렌 직물층(3a)/폴리프로필렌 접착제층(3b)/종이층(3c)/열융착 접착제층(3d)으로 구성된 4층 구조의 실링재(3)가 상기 재봉선을 따라 포대 본체의 하단부 표면 및 이면 모두에 열융착되어 있는 것을 특징으로 하는 방수성이 우수한 포장용 포대.The bag body (1) is a polypropylene fabric woven from polypropylene yarn and has an opening (1a) formed at the upper end of the bag body (1) and a seam (2) formed at the lower end of the bag body (1). In the bag, the polypropylene fabric layer 3a / polypropylene adhesive layer 3b / paper layer 3c / heat-sealing adhesive layer 3d to cover the sewing line 2 at the lower end of the bag body 1 The waterproof packaging bag is characterized in that the four-layer sealing material (3) is heat-sealed to both the lower surface and the rear surface of the bag body along the sewing line. 제1항에 있어서, 상기 폴리프로필렌 직물은 일면에 폴리프로필렌 코팅층이 형성되어 있는 것을 특징으로 하는 방수성이 우수한 포장용 포대.The packaging bag of claim 1, wherein the polypropylene fabric has a polypropylene coating layer formed on one surface thereof. 제1항에 있어서, 상기 실링제(3)를 구성하는 열융착 접착제층(3d)이 포대 본체 하단부의 표면 및 이면과 직접 접촉하여 열융착되어 있는 것을 특징으로 하는 방수성이 우수한 포장용 포대.The packaging bag according to claim 1, wherein the heat-sealing adhesive layer (3d) constituting the sealing agent (3d) is heat-sealed in direct contact with the front and rear surfaces of the bag bottom part.
KR1020090088391A 2009-09-18 2009-09-18 Waterproof packaging bag KR101049399B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180001118U (en) * 2016-10-13 2018-04-23 대한민국(관리부서:국립수산과학원) Bag for Packaging Seed of Pyropia

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180000443U (en) * 2016-08-05 2018-02-14 서호원 Packing bag

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160411U (en) 1978-04-27 1979-11-09
MY105246A (en) * 1989-01-24 1994-08-30 Ohishi Sangyo Co Ltd Overtape-sealed bag
JP2000272640A (en) * 1999-03-23 2000-10-03 Nippon Matai Co Ltd Overtape, and packaging bag using the same
KR100509806B1 (en) * 2003-03-06 2005-08-24 (주)엠피테크 Manufacture method of synthetic resin burlap bag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180001118U (en) * 2016-10-13 2018-04-23 대한민국(관리부서:국립수산과학원) Bag for Packaging Seed of Pyropia

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