WO2023176991A1 - Packaging material for wire rod coil - Google Patents

Packaging material for wire rod coil Download PDF

Info

Publication number
WO2023176991A1
WO2023176991A1 PCT/KR2022/003620 KR2022003620W WO2023176991A1 WO 2023176991 A1 WO2023176991 A1 WO 2023176991A1 KR 2022003620 W KR2022003620 W KR 2022003620W WO 2023176991 A1 WO2023176991 A1 WO 2023176991A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging material
woven fabric
polymer layer
layer
density polyethylene
Prior art date
Application number
PCT/KR2022/003620
Other languages
French (fr)
Korean (ko)
Inventor
김종엽
여광수
임만배
박정인
심창보
Original Assignee
주식회사 라크인더스트리
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 라크인더스트리 filed Critical 주식회사 라크인더스트리
Publication of WO2023176991A1 publication Critical patent/WO2023176991A1/en

Links

Images

Classifications

    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/42—Applications of coated or impregnated materials
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/02—Containers, packaging elements or packages, specially adapted for particular articles or materials for annular articles
    • B65D85/04—Containers, packaging elements or packages, specially adapted for particular articles or materials for annular articles for coils of wire, rope or hose
    • 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
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C09J123/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • 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
    • C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers

Definitions

  • the present invention relates to a packaging material for wire coils containing a non-woven fabric and a low-density polyethylene film and a method of manufacturing the same, and more specifically, to a packaging material for wire coils that is resistant to fracture and includes non-oriented non-woven fabric.
  • Metal products containing steel are easily oxidized in the air, and scratches occur on the outside when they collide with other objects. To prevent this, metal products are stored and transported by wrapping the surface of the metal product using vinyl, etc. that are easy to package.
  • packaging machines for automatic packaging of wire coils
  • a variety of packaging materials including vinyl and non-woven fabric, are being developed as packaging materials that can be applied to various wire coils and wrapping machines.
  • fibers because they have a certain texture, external impact causes them to break in the direction of the grain.
  • non-woven fabrics fracture may occur in a determined direction due to regular embossing patterns.
  • Registered Patent Publication No. 10-1030778 announced on April 27, 2011, relates to a rust-prevention packaging material using non-woven fabric made of polypropylene and gunny fabric and a method of manufacturing the same.
  • the polypropylene non-woven fabric is coated with a evaporable rust preventive agent and the steel coil, etc.
  • the anti-rust packaging material is filled between a polypropylene non-woven fabric (1b) impregnated and fixed with a rust inhibitor, a polypropylene gunny fabric (2), and the non-woven fabric (1b) and the gunny fabric (2) to form a non-woven fabric (1b) and a gunny fabric (2). It is characterized by comprising a polypropylene resin (3) that adheres 2).
  • packaging material for wire coils which prevents breakage because it does not have directionality when damage occurs due to external impact.
  • Another problem to be solved by the present invention is to provide a packaging material for wire coils that can protect the packaged product from external impact and a manufacturing method thereof.
  • Another problem to be solved by the present invention is to provide a packaging material for wire coils and a method of manufacturing the same, which do not have directionality and thus do not break even when externally stamped.
  • Another problem to be solved by the present invention is to provide a packaging material for wire coils that is self-adhesive and thus easy to package, and a method of manufacturing the same.
  • a packaging material for a wire coil includes an outer polymer layer containing ethylene vinyl acetate and low-density polyethylene; a non-woven fabric layer located below the outer polymer layer; It includes an internal polymer layer located below the non-woven fabric layer and containing ethylene vinyl acetate and low-density polyethylene.
  • the nonwoven layer is a polypropylene nonwoven fabric with a basis weight of 20 g/m 2 to 50 g/m 2 .
  • the outer polymer layer and the inner polymer layer contain 5 wt% to 25 wt% of ethylene vinyl acetate based on the total weight of the polymer layer.
  • the nonwoven layer includes linear emboss with an emboss area of 5% to 15%.
  • the total thickness of the outer polymer layer, the nonwoven layer, and the inner polymer layer is 250 ⁇ m to 300 ⁇ m.
  • the packaging material further includes an adhesive layer located below the internal polymer layer.
  • the adhesive layer includes ester rubber and polyisobutylene.
  • the packaging material for wire coils according to the present invention uses non-directional curved emboss on the non-woven fabric layer, so it does not break even when externally stamped.
  • the packaging material for wire coils according to the present invention contains ethylene vinyl acetate and low-density polyethylene in the inner and outer polymer layers and is capable of self-adhesiveness.
  • Figure 1 is a cross-sectional view from the side of the structure of a packaging material for wire coils including a non-woven fabric and a low-density polyethylene film according to an embodiment of the present invention.
  • Figure 2 is a photograph showing the linear embossed form of the non-woven fabric in the packaging material for wire coils containing non-woven fabric and low-density polyethylene film according to an embodiment of the present invention.
  • Figure 3 is a flowchart showing a method of manufacturing a packaging material for a wire coil containing a non-woven fabric and a low-density polyethylene film according to an embodiment of the present invention.
  • the present invention discloses a packaging material for wire coils comprising a non-woven fabric and a low-density polyethylene film, and a method for manufacturing the same.
  • a packaging material for wire coils comprising a non-woven fabric and a low-density polyethylene film, and a method for manufacturing the same.
  • Figure 1 is a cross-sectional view from the side of the structure of a packaging material for wire coils including a non-woven fabric and a low-density polyethylene film according to an embodiment of the present invention.
  • the packaging material for wire coils includes an outer polymer layer 110 containing ethylene vinyl acetate (EVA) and low density polyethylene (LDPE), and a lower part of the outer polymer layer 110. It includes a non-woven fabric layer 130 located below the non-woven fabric layer 130 and an internal polymer layer 150 including ethylene vinyl acetate (EVA) and low-density polyethylene (LDPE).
  • EVA ethylene vinyl acetate
  • LDPE low-density polyethylene
  • the nonwoven layer 130 is a polypropylene nonwoven fabric having a basis weight, which is weight per square meter, of 20 g/m 2 to 50 g/m 2 .
  • the non-woven fabric layer 130 is preferably formed by combining two or more non-woven fabric sheets in which polypropylene polymers are randomly arranged. By combining multiple non-woven sheets, it can act as a cushion that is thin yet cushions the impact of the packaged product.
  • the outer polymer layer 110 and the inner polymer layer 150 coupled to the upper and lower surfaces of the nonwoven fabric include ethylene vinyl acetate (EVA) and low-density polyethylene (LDPE), and the ethylene vinyl acetate is added to the total weight of the polymer layer. Contains 5 wt% to 25 wt%. Due to this composition, the packaging material for wire coils has self-adhesive properties, making packaging easy.
  • EVA ethylene vinyl acetate
  • LDPE low-density polyethylene
  • the total thickness of the outer polymer layer 110, the nonwoven layer 130, and the inner polymer layer 150 is 250 ⁇ m to 300 ⁇ m.
  • the packaging material for the wire coil further includes an adhesive layer 170 located below the internal polymer layer 150.
  • the adhesive layer 170 may include acrylic ester-based ester rubber and polyisobutylene.
  • Figure 2 is a photograph showing the linear embossed form of the non-woven fabric in the packaging material for wire coils containing non-woven fabric and low-density polyethylene film according to an embodiment of the present invention.
  • the nonwoven fabric layer 130 includes curved embossing with an embossing area of 5% to 15%.
  • the non-woven fabric layer 130 is formed by overlapping two or more non-woven fabric sheets in which polypropylene polymer is dispersed. The plurality of nonwoven sheets are heat-compressed while passing between embossed rollers and are attached and fixed to each other. Linear embossing (210, 230, 260, 280) is formed to prevent graining caused by heat-compressed embossing.
  • Linear emboss can be formed in various shapes, such as straight emboss such as a triangular wave shape or sawtooth shape, as well as curved emboss such as an S-shape or wave pattern.
  • Figure 2 shows the arrangement of curved emboss.
  • Linear emboss is formed to repeat along the vertical emboss reference line 220 and the horizontal emboss reference line 270. When linear embossing is repeatedly arranged in this way, heat compression becomes uniform over the entire area of the nonwoven fabric sheet, so the nonwoven fabric sheet can be attached consistently.
  • the vertical embossing reference line 220 and the horizontal embossing reference line 270 are not formed at right angles to each other. It is preferable that the vertical embossed reference line 220 and the horizontal embossed reference line 270 are formed at an angle with the outer surface of the packaging material for the wire coil.
  • the end of the left curved emboss 210 may meet the vertical emboss reference line 220, and the beginning of the right curved emboss 230 may also meet the vertical emboss reference line 220.
  • the compressed portion covers the entire length in the horizontal direction, but can be arranged in a linear emboss size to the left and right from the vertical emboss reference line 220, preventing grain from forming and preventing the packaging material for wire coil from breaking in the grain direction. can be prevented.
  • the peak portion of the lower curved emboss 260 may meet the horizontal emboss reference line 270, and the valley portion of the upper curved emboss 280 may also meet the horizontal emboss reference line 270.
  • the compressed part covers the entire length in the vertical direction, but can be arranged in a linear emboss size in a staggered manner up and down from the horizontal emboss reference line 220, preventing grain from forming and preventing the packaging material for wire coil from breaking in the grain direction. can be prevented.
  • Figure 3 is a flowchart showing a method of manufacturing a packaging material for a wire coil containing a non-woven fabric and a low-density polyethylene film according to an embodiment of the present invention.
  • Packaging material for wire coils can be manufactured by the following method. First, two or more non-woven fabric sheets in which polypropylene polymer is dispersed are overlapped and passed between embossed rollers to obtain a non-woven fabric with embossing formed by thermal compression (S310). At this time, the curved emboss is formed to repeat along the inclined vertical emboss reference line and horizontal emboss reference line with respect to the outline of the packaging material for the wire coil. When linear embossing is repeatedly arranged in this way, heat compression becomes uniform over the entire area of the nonwoven fabric sheet, so the nonwoven fabric sheet can be attached consistently. Curved emboss can be placed alternately up, down, left, and right on the vertical and horizontal emboss reference lines, preventing grain from forming and preventing the packaging material for wire coils from breaking in the grain direction.
  • the embossed nonwoven fabric is placed between the outer polymer layer and the inner polymer layer containing ethylene vinyl acetate and low-density polyethylene and laminated while passing through a roller (S330).
  • the outer polymer layer and the inner polymer layer bonded to the top and bottom of the nonwoven fabric include ethylene vinyl acetate (EVA) and low-density polyethylene (LDPE), and contain 5 wt% to 25 wt% of ethylene vinyl acetate based on the total weight of the polymer layer, making them self-adhesive. to have. It is preferable to adjust the thickness and laminate the outer polymer layer 110, the non-woven fabric layer 130, and the inner polymer layer 150 so that the total thickness is 250 ⁇ m to 300 ⁇ m.
  • An adhesive layer containing ester rubber and polyisobutylene is applied to the lower part of the internal polymer layer of the product in which the non-woven fabric layer and the polymer layer are laminated (S350).
  • the adhesive layer 170 is applied using an adhesive containing acrylic ester-based ester rubber and polyisobutylene.
  • the present invention can be used as a packaging material for wire coils containing non-woven fabric and low-density polyethylene film.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Wrappers (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to: a packaging material for a wire coil, the packaging material comprising a nonwoven fabric and a low-density polyethylene film; and a method for manufacturing same. The packaging material for the wire rod coil comprises: an outer polymer layer including ethylene vinyl acetate and low-density polyethylene; a non-woven fabric layer located below the outer polymer layer; and an inner polymer layer located under the non-woven fabric layer and containing ethylene vinyl acetate and low-density polyethylene. A polypropylene non-woven fabric having a basis weight of 20 g/m2 to 50 g/m2 is used for the non-woven fabric layer to protect the packaged product from impact, and the non-woven fabric layer is self-adhesive. The packaging material is useful due to using linear embossing, thus having the effect of preventing breakage in a certain direction.

Description

선재 코일용 포장재Packaging material for wire coils
본 발명은 부직포와 저밀도 폴리에틸렌 필름을 포함하는 선재 코일용 포장재 및 그 제조방법에 관한 것으로서, 더욱 상세하게는 방향성이 없는 부직포를 포함하여 파단에 강한 선재 코일용 포장재에 관한 것이다.The present invention relates to a packaging material for wire coils containing a non-woven fabric and a low-density polyethylene film and a method of manufacturing the same, and more specifically, to a packaging material for wire coils that is resistant to fracture and includes non-oriented non-woven fabric.
철강을 포함하는 금속 제품은 공기 중에서 산화하기 쉽고, 타 물체와 부딪히는 경우 외부에 스크래치가 발생한다. 이를 방지하기 위해 금속 제품 표면에 포장이 용이한 비닐 등을 이용하여 포장하여 금속 제품을 보관, 운송한다. Metal products containing steel are easily oxidized in the air, and scratches occur on the outside when they collide with other objects. To prevent this, metal products are stored and transported by wrapping the surface of the metal product using vinyl, etc. that are easy to package.
무게가 무거운 강선용 선재 코일의 경우 코일 간 다단 적치, 코일 이적 및 핸들링 등 보관, 운송 및 출하과정에서 주변의 코일 또는 타물체와의 마찰에 의해 발생하는 마찰흠이 심각하게 발생할 수 있으므로, 이를 방지하는 것이 필수적이다. 코일의 형태를 유지하기 위해 강도가 높은 천 포장재를 활용하여 전면 포장을 할 수 있다. 천 포장재의 경우 선재 코일의 다양한 사이즈, 높이, 내외성 치수, 충진밀도, 권취형상 등 선재 코일의 코일치수 및 형상의 다양성으로 인해 포장에 어려움이 있다. In the case of heavy steel wire coils, friction scratches caused by friction with surrounding coils or other objects can occur during storage, transportation and shipping, such as multi-stage stacking between coils, coil transfer and handling, so it is important to prevent this. It is essential. To maintain the shape of the coil, full packaging can be done using high-strength cloth packaging material. In the case of cloth packaging materials, packaging is difficult due to the diversity of coil dimensions and shapes of wire coils, such as various sizes, heights, internal and external dimensions, filling density, and winding shape.
선재 코일의 자동 포장을 위해 래핑(Wrapping)머신을 사용하는 경우가 증가하고 있다. 다양한 선재 코일에 적용이 가능하면서 래핑머신에 적용이 가능한 포장재로 비닐과 부직포를 포함하는 다양한 포장재가 개발되고 있다. 섬유의 경우 일정한 결이 있어서 외부의 층격에 의해 결 방향으로 찢어지는 파단이 발생한다. 부직포의 경우에도 규칙적인 엠보싱 무늬에 의해 정해진 방향으로 파단이 발생할 수 있다.The use of wrapping machines for automatic packaging of wire coils is increasing. A variety of packaging materials, including vinyl and non-woven fabric, are being developed as packaging materials that can be applied to various wire coils and wrapping machines. In the case of fibers, because they have a certain texture, external impact causes them to break in the direction of the grain. Even in the case of non-woven fabrics, fracture may occur in a determined direction due to regular embossing patterns.
2011년 04월 27일 공고된 등록특허공보 제10-1030778호는 폴리프로필렌 소재로 된 부직포와 마대 원단을 이용한 방청포장재 및 그 제조 방법에 관한 것으로, 폴리프로필렌 부직포에 기화성 방청제를 코팅하고 철강 코일 등의 철강 제품, 금속 기계류, 금속 부품 등의 포장시 부식을 방지하기 위한 기화성 방청 포장재 및 폴리프로필렌 부직포와 마대 원단을 폴리프로필렌 수지를 접착제로 이용하여 열접착시켜 방청 포장재를 제조하는 방법에 관해 개시하고 있다. 방청 포장재는 방청제가 함침되어 고착된 폴리프로필렌 부직포(1b)와, 폴리프로필렌 마대 원단(2)과, 상기 부직포(1b)와 마대 원단(2)의 사이에 충진되어 부직포(1b)와 마대 원단(2)을 접착시키는 폴리프로필렌 수지(3)를 포함하여 구성됨을 특징으로 한다. Registered Patent Publication No. 10-1030778, announced on April 27, 2011, relates to a rust-prevention packaging material using non-woven fabric made of polypropylene and gunny fabric and a method of manufacturing the same. The polypropylene non-woven fabric is coated with a evaporable rust preventive agent and the steel coil, etc. Discloses a evaporative anti-corrosion packaging material to prevent corrosion when packaging steel products, metal machinery, metal parts, etc., and a method of manufacturing rust-prevention packaging material by heat-sealing polypropylene non-woven fabric and hemp fabric using polypropylene resin as an adhesive. there is. The anti-rust packaging material is filled between a polypropylene non-woven fabric (1b) impregnated and fixed with a rust inhibitor, a polypropylene gunny fabric (2), and the non-woven fabric (1b) and the gunny fabric (2) to form a non-woven fabric (1b) and a gunny fabric (2). It is characterized by comprising a polypropylene resin (3) that adheres 2).
다만, 외부 충격에 의해 찍힘이 발생하는 경우 방향성을 가지지 않아서 파단 발생을 방지하는 선재 코일용 포장재에 관하여 구체적으로 개시하고 있지 않다.However, there is no specific disclosure regarding the packaging material for wire coils, which prevents breakage because it does not have directionality when damage occurs due to external impact.
본 발명이 해결하고자 하는 다른 과제는, 외부의 충격으로부터 포장된 제품을 보호할 수 있는 선재 코일용 포장재 및 그 제조방법을 제공하는 것이다. Another problem to be solved by the present invention is to provide a packaging material for wire coils that can protect the packaged product from external impact and a manufacturing method thereof.
본 발명이 해결하고자 하는 다른 과제는, 방향성이 없어서 외부의 찍힘에도 파단이 발생하지 않는 선재 코일용 포장재 및 그 제조방법을 제공하는 것이다. Another problem to be solved by the present invention is to provide a packaging material for wire coils and a method of manufacturing the same, which do not have directionality and thus do not break even when externally stamped.
본 발명이 해결하고자 하는 또 다른 과제는, 자가 점착이 가능하여 포장이 용이한 선재 코일용 포장재 및 그 제조방법을 제공하는 것이다.Another problem to be solved by the present invention is to provide a packaging material for wire coils that is self-adhesive and thus easy to package, and a method of manufacturing the same.
상기 목적을 이루기 위한 하나의 양태에 따르면, 선재 코일용 포장재는, 에틸렌초산비닐과 저밀도 폴리에틸렌을 포함하는 외부 폴리머층과; 상기 외부 폴리머층 하부에 위치하는 부직포층과; 상기 부직포층 하부에 위치하고, 에틸렌초산비닐과 저밀도 폴리에틸렌을 포함하는 내부 폴리머층;을 포함한다. According to one aspect for achieving the above object, a packaging material for a wire coil includes an outer polymer layer containing ethylene vinyl acetate and low-density polyethylene; a non-woven fabric layer located below the outer polymer layer; It includes an internal polymer layer located below the non-woven fabric layer and containing ethylene vinyl acetate and low-density polyethylene.
추가적인 양태에 따르면, 상기 부직포층은 평량이 20g/m2 내지 50g/m2인 폴리프로필렌 부직포이다. According to a further aspect, the nonwoven layer is a polypropylene nonwoven fabric with a basis weight of 20 g/m 2 to 50 g/m 2 .
추가적인 양태에 따르면, 상기 외부 폴리머층과 내부 폴리머층은, 에틸렌초산비닐을 폴리머층 전체 중량의 5 wt% 내지 25 wt% 함유한다. According to a further embodiment, the outer polymer layer and the inner polymer layer contain 5 wt% to 25 wt% of ethylene vinyl acetate based on the total weight of the polymer layer.
추가적인 양태에 따르면, 상기 부직포층은 엠보 면적이 5% 내지 15%인 선형 엠보를 포함한다. According to a further aspect, the nonwoven layer includes linear emboss with an emboss area of 5% to 15%.
추가적인 양태에 따르면, 상기 외부 폴리머층과, 부직포층과, 내부 폴리머층의 전체 두께는 250μm 내지 300μm이다.According to a further embodiment, the total thickness of the outer polymer layer, the nonwoven layer, and the inner polymer layer is 250 μm to 300 μm.
추가적인 양태에 따르면, 상기 포장재는, 내부 폴리머층 하부에 위치하는 점착제층;을 더 포함한다.According to a further aspect, the packaging material further includes an adhesive layer located below the internal polymer layer.
추가적인 양태에 따르면, 상기 점착제층은 에스테르고무와 폴리이소부틸렌을 포함한다.According to a further aspect, the adhesive layer includes ester rubber and polyisobutylene.
본 발명에 따르면, 폴리프로필렌 부직포를 사용하여 외부의 충격으로부터 포장된 제품을 보호할 수 있는 선재코일용 포장재를 제공할 수 있다.According to the present invention, it is possible to provide a packaging material for wire coils that can protect the packaged product from external impact using polypropylene nonwoven fabric.
본 발명에 의한 선재 코일용 포장재는 부직포층에 방향성이 없는 곡선형 엠보를 사용하여 외부의 찍힘에도 파단이 발생하지 않는다.The packaging material for wire coils according to the present invention uses non-directional curved emboss on the non-woven fabric layer, so it does not break even when externally stamped.
본 발명에 의한 선재 코일용 포장재는 내부 및 외부 폴리머층에 에틸렌초산비닐과 저밀도 폴리에틸렌을 포함하여 자가점착이 가능하다.The packaging material for wire coils according to the present invention contains ethylene vinyl acetate and low-density polyethylene in the inner and outer polymer layers and is capable of self-adhesiveness.
도 1은 본 발명의 일 실시예에 따른 부직포와 저밀도 폴리에틸렌 필름을 포함하는 선재 코일용 포장재의 구조를 측면에서 바라본 단면도이다. Figure 1 is a cross-sectional view from the side of the structure of a packaging material for wire coils including a non-woven fabric and a low-density polyethylene film according to an embodiment of the present invention.
도 2는 본 발명의 일 실시예에 따른 부직포와 저밀도 폴리에틸렌 필름을 포함하는 선재 코일용 포장재에서 부직포의 선형 엠보 형태를 나타내는 사진이다. Figure 2 is a photograph showing the linear embossed form of the non-woven fabric in the packaging material for wire coils containing non-woven fabric and low-density polyethylene film according to an embodiment of the present invention.
도 3은 본 발명의 일 실시예에 따른 부직포와 저밀도 폴리에틸렌 필름을 포함하는 선재 코일용 포장재를 제조하는 방법을 나타내는 순서도이다. Figure 3 is a flowchart showing a method of manufacturing a packaging material for a wire coil containing a non-woven fabric and a low-density polyethylene film according to an embodiment of the present invention.
이하 첨부된 도면을 참조하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있는 바람직한 실시예를 상세히 설명한다. 그러나 이들 실시예는 본 발명을 보다 구체적으로 설명하기 위한 것으로, 본 발명의 범위가 이에 의하여 제한되지 않는다는 것은 당업계의 통상의 지식을 가진 자에게 자명할 것이다. Hereinafter, with reference to the attached drawings, preferred embodiments that enable those skilled in the art to easily practice the present invention will be described in detail. However, these examples are for illustrating the present invention in more detail, and it will be apparent to those skilled in the art that the scope of the present invention is not limited thereto.
본 발명이 해결하고자 하는 과제의 해결 방안을 명확하게 하기 위한 발명의 구성을 본 발명의 바람직한 실시예에 근거하여 첨부 도면을 참조하여 상세히 설명하되, 도면의 구성요소들에 참조번호를 부여함에 있어서 동일 구성요소에 대해서는 비록 다른 도면상에 있더라도 동일 참조번호를 부여하였으며 당해 도면에 대한 설명시 필요한 경우 다른 도면의 구성요소를 인용할 수 있음을 미리 밝혀둔다. 아울러 본 발명의 바람직한 실시예에 대한 동작 원리를 상세하게 설명함에 있어 본 발명과 관련된 공지 기능 혹은 구성에 대한 구체적인 설명 그리고 그 이외의 제반 사항이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우, 그 상세한 설명을 생략한다.The configuration of the invention to clarify the solution to the problem to be solved by the present invention will be described in detail with reference to the accompanying drawings based on preferred embodiments of the present invention, and the same will be true in assigning reference numbers to the components in the drawings. Components are given the same reference numbers even if they are in different drawings, and it is stated in advance that components of other drawings can be cited when necessary when explaining the relevant drawings. In addition, when explaining in detail the operating principles of the preferred embodiments of the present invention, if it is judged that detailed descriptions of known functions or configurations related to the present invention and other matters may unnecessarily obscure the gist of the present invention, The detailed description is omitted.
덧붙여, 명세서 전체에서, 어떤 부분이 다른 부분과 '연결'되어 있다고 할 때, 이는 '직접적으로 연결'되어 있는 경우뿐만 아니라, 그 중간에 다른 소자를 사이에 두고 '간접적으로 연결'되어 있는 경우도 포함한다. 본 명세서에서, 단수형은 문구에서 특별히 언급하지 않는 한 복수형도 포함한다. 명세서에서 사용되는 "포함한다(comprises)" 또는 "포함하는(comprising)"은 언급된 구성요소, 단계, 동작, 또는 소자 외에 하나 이상의 다른 구성요소, 단계, 동작, 또는 소자의 존재 또는 추가를 배제하지 않는다.In addition, throughout the specification, when a part is said to be 'connected' to another part, this does not only mean 'directly connected', but also 'indirectly connected' with another element in between. Includes. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” or “comprising” excludes the presence or addition of one or more other components, steps, operations, or elements other than the mentioned components, steps, operations, or elements. I never do that.
본 발명에서는 부직포와 저밀도 폴리에틸렌 필름을 포함하는 선재 코일용 포장재 및 그 제조방법을 개시한다. 이하 도면을 이용하여 본 발명의 실시예들을 설명한다. The present invention discloses a packaging material for wire coils comprising a non-woven fabric and a low-density polyethylene film, and a method for manufacturing the same. Hereinafter, embodiments of the present invention will be described using the drawings.
도 1은 본 발명의 일 실시예에 따른 부직포와 저밀도 폴리에틸렌 필름을 포함하는 선재 코일용 포장재의 구조를 측면에서 바라본 단면도이다. Figure 1 is a cross-sectional view from the side of the structure of a packaging material for wire coils including a non-woven fabric and a low-density polyethylene film according to an embodiment of the present invention.
일 실시예에 따른 선재 코일용 포장재는, 에틸렌초산비닐(Ethylene Vinyl Acetate, EVA)과 저밀도 폴리에틸렌(Low Density Polyethylene, LDPE)을 포함하는 외부 폴리머층(110)과, 외부 폴리머층(110) 하부에 위치하는 부직포층(130)과, 부직포층(130) 하부에 위치하고 에틸렌초산비닐(EVA)과 저밀도 폴리에틸렌(LDPE)을 포함하는 내부 폴리머층(150)을 포함한다. The packaging material for wire coils according to one embodiment includes an outer polymer layer 110 containing ethylene vinyl acetate (EVA) and low density polyethylene (LDPE), and a lower part of the outer polymer layer 110. It includes a non-woven fabric layer 130 located below the non-woven fabric layer 130 and an internal polymer layer 150 including ethylene vinyl acetate (EVA) and low-density polyethylene (LDPE).
추가적인 양태에 따르면, 부직포층(130)은 제곱미터당 무게인 평량이 20g/m2 내지 50g/m2인 폴리프로필렌 부직포이다. 부직포층(130)은 폴리프로필렌 고분자가 랜덤하게 배열된 부직포 시트를 2장 이상 결합하여 사용하는 것이 바람직하다. 복수의 부직포 시트를 결합하여 사용함으로써 얇으면서도 포장된 제품의 충격을 완화하는 쿠션 역할을 할 수 있다. According to a further aspect, the nonwoven layer 130 is a polypropylene nonwoven fabric having a basis weight, which is weight per square meter, of 20 g/m 2 to 50 g/m 2 . The non-woven fabric layer 130 is preferably formed by combining two or more non-woven fabric sheets in which polypropylene polymers are randomly arranged. By combining multiple non-woven sheets, it can act as a cushion that is thin yet cushions the impact of the packaged product.
추가적인 양태에 따르면, 부직포 상하면에 결합되는 외부 폴리머층(110)과 내부 폴리머층(150)은, 에틸렌초산비닐(EVA)과 저밀도 폴리에틸렌(LDPE)을 포함하되, 에틸렌초산비닐을 폴리머층 전체 중량의 5 wt% 내지 25 wt% 함유한다. 이러한 조성에 의해서 선재 코일용 포장재는 자가점착성을 가지게 되어 포장을 용이하게 할 수 있다.According to an additional aspect, the outer polymer layer 110 and the inner polymer layer 150 coupled to the upper and lower surfaces of the nonwoven fabric include ethylene vinyl acetate (EVA) and low-density polyethylene (LDPE), and the ethylene vinyl acetate is added to the total weight of the polymer layer. Contains 5 wt% to 25 wt%. Due to this composition, the packaging material for wire coils has self-adhesive properties, making packaging easy.
추가적인 양태에 따르면, 외부 폴리머층(110)과, 부직포층(130)과, 내부 폴리머층(150)의 전체 두께는 250μm 내지 300μm이다.According to a further embodiment, the total thickness of the outer polymer layer 110, the nonwoven layer 130, and the inner polymer layer 150 is 250 μm to 300 μm.
추가적인 양태에 따르면, 선재 코일용 포장재는 내부 폴리머층(150) 하부에 위치하는 점착제층(170)을 더 포함한다. 점착제층(170)은 아크릴릭 에스테르(Acrylic Ester) 기반의 에스테르(Ester) 고무와 폴리이소부틸렌(Poly iso butylene)을 포함할 수 있다.According to an additional aspect, the packaging material for the wire coil further includes an adhesive layer 170 located below the internal polymer layer 150. The adhesive layer 170 may include acrylic ester-based ester rubber and polyisobutylene.
도 2는 본 발명의 일 실시예에 따른 부직포와 저밀도 폴리에틸렌 필름을 포함하는 선재 코일용 포장재에서 부직포의 선형 엠보 형태를 나타내는 사진이다. Figure 2 is a photograph showing the linear embossed form of the non-woven fabric in the packaging material for wire coils containing non-woven fabric and low-density polyethylene film according to an embodiment of the present invention.
추가적인 양태에 따르면, 상기 부직포층(130)은 엠보 면적이 5% 내지 15%인 곡선형 엠보를 포함한다. 부직포층(130)은 폴리프로필렌 고분자가 분산된 부직포 시트를 2장 이상 겹쳐서 형성한다. 복수의 부직포 시트들은 엠보싱이 양각된 롤러 사이를 통과하면서 열압착되어 서로 부착되어 고정된다. 열압착된 엠보싱에 의한 결이 발생하지 않도록, 선형 엠보(210, 230, 260, 280)를 형성한다. According to a further aspect, the nonwoven fabric layer 130 includes curved embossing with an embossing area of 5% to 15%. The non-woven fabric layer 130 is formed by overlapping two or more non-woven fabric sheets in which polypropylene polymer is dispersed. The plurality of nonwoven sheets are heat-compressed while passing between embossed rollers and are attached and fixed to each other. Linear embossing (210, 230, 260, 280) is formed to prevent graining caused by heat-compressed embossing.
선형 엠보는 삼각파형, 톱니형 등 직선형뿐만 아니라, S자형 또는 물결 무늬의 형태와 같은 곡선형 엠보와 같이 다양한 형태로 형성할 수도 있다. 도 2에서는 곡선형 엠보가 배열된 형태를 나타낸다. 선형 엠보는 세로 엠보 기준선(220)과 가로 엠보 기준선(270)을 따라서 반복하도록 형성한다. 선형 엠보를 이러한 방법으로 반복 배열하는 경우 부직포 시트의 전체 면적에서 열 압착이 균일하게 되므로 부직포 시트가 일정하게 부착될 수 있다. Linear emboss can be formed in various shapes, such as straight emboss such as a triangular wave shape or sawtooth shape, as well as curved emboss such as an S-shape or wave pattern. Figure 2 shows the arrangement of curved emboss. Linear emboss is formed to repeat along the vertical emboss reference line 220 and the horizontal emboss reference line 270. When linear embossing is repeatedly arranged in this way, heat compression becomes uniform over the entire area of the nonwoven fabric sheet, so the nonwoven fabric sheet can be attached consistently.
세로 엠보 기준선(220)과 가로 엠보 기준선(270)은 서로 직각을 이루지 않도록 형성하는 것이 바람직하다. 세로 엠보 기준선(220)과 가로 엠보 기준선(270)은 선재 코일용 포장재 외곽면과 경사지게 형성하는 것이 바람직하다. It is preferable that the vertical embossing reference line 220 and the horizontal embossing reference line 270 are not formed at right angles to each other. It is preferable that the vertical embossed reference line 220 and the horizontal embossed reference line 270 are formed at an angle with the outer surface of the packaging material for the wire coil.
왼쪽 곡선 엠보(210)의 끝부분은 세로 엠보 기준선(220)과 만나고, 오른쪽 곡선 엠보(230)의 시작부분도 세로 엠보 기준선(220)과 만나도록 형성할 수 있다. 이러한 경우 압착된 부분이 가로 방향으로 전체 길이를 포함하되, 선형 엠보 크기로 세로 엠보 기준선(220)에서 좌우로 엇갈리게 배치할 수 있어, 결이 생기는 것을 방지하여 선재 코일용 포장재가 결방향으로 파단되는 것을 방지할 수 있다.The end of the left curved emboss 210 may meet the vertical emboss reference line 220, and the beginning of the right curved emboss 230 may also meet the vertical emboss reference line 220. In this case, the compressed portion covers the entire length in the horizontal direction, but can be arranged in a linear emboss size to the left and right from the vertical emboss reference line 220, preventing grain from forming and preventing the packaging material for wire coil from breaking in the grain direction. can be prevented.
아래쪽 곡선 엠보(260)의 산부위가 가로 엠보 기준선(270)과 만나고, 위쪽 곡선 엠보(280)의 골부위도 가로 엠보 기준선(270)과 만나도록 형성할 수 있다. 이러한 경우 압착된 부분이 세로 방향으로 전체 길이를 포함하되, 선형 엠보 크기로 가로 엠보 기준선(220)에서 상하로 엇갈리게 배치할 수 있어, 결이 생기는 것을 방지하여 선재 코일용 포장재가 결방향으로 파단되는 것을 방지할 수 있다.The peak portion of the lower curved emboss 260 may meet the horizontal emboss reference line 270, and the valley portion of the upper curved emboss 280 may also meet the horizontal emboss reference line 270. In this case, the compressed part covers the entire length in the vertical direction, but can be arranged in a linear emboss size in a staggered manner up and down from the horizontal emboss reference line 220, preventing grain from forming and preventing the packaging material for wire coil from breaking in the grain direction. can be prevented.
도 3은 본 발명의 일 실시예에 따른 부직포와 저밀도 폴리에틸렌 필름을 포함하는 선재 코일용 포장재를 제조하는 방법을 나타내는 순서도이다. Figure 3 is a flowchart showing a method of manufacturing a packaging material for a wire coil containing a non-woven fabric and a low-density polyethylene film according to an embodiment of the present invention.
일 실시예에 따른 선재 코일용 포장재는 다음 방법으로 제조할 수 있다. 먼저, 폴리프로필렌 고분자가 분산된 부직포 시트를 2장 이상 겹쳐서 엠보싱이 양각된 롤러 사이를 통과시켜, 열압착에 의해 엠보싱이 형성된 부직포를 얻는다(S310). 이때, 곡선형 엠보는 선재 코일용 포장재 외곽선에 대해 경사진 세로 엠보 기준선과 가로 엠보 기준선을 따라서 반복하도록 형성한다. 선형 엠보를 이러한 방법으로 반복 배열하는 경우 부직포 시트의 전체 면적에서 열 압착이 균일하게 되므로 부직포 시트가 일정하게 부착될 수 있다. 곡선형 엠보를 세로 엠보 기준선 및 가로 엠보 기준선에서 상하좌우로 엇갈리게 배치할 수 있어, 결이 생기는 것을 방지하여 선재 코일용 포장재가 결방향으로 파단되는 것을 방지할 수 있다.Packaging material for wire coils according to one embodiment can be manufactured by the following method. First, two or more non-woven fabric sheets in which polypropylene polymer is dispersed are overlapped and passed between embossed rollers to obtain a non-woven fabric with embossing formed by thermal compression (S310). At this time, the curved emboss is formed to repeat along the inclined vertical emboss reference line and horizontal emboss reference line with respect to the outline of the packaging material for the wire coil. When linear embossing is repeatedly arranged in this way, heat compression becomes uniform over the entire area of the nonwoven fabric sheet, so the nonwoven fabric sheet can be attached consistently. Curved emboss can be placed alternately up, down, left, and right on the vertical and horizontal emboss reference lines, preventing grain from forming and preventing the packaging material for wire coils from breaking in the grain direction.
엠보싱이 형성된 부직포를 에틸렌초산비닐과 저밀도 폴리에틸렌을 포함하는 외부 폴리머층과 내부 폴리머층 사이에 넣고 롤러를 통과시키면서 합지시킨다(S330). 부직포 상하면에 결합되는 외부 폴리머층과 내부 폴리머층은, 에틸렌초산비닐(EVA)과 저밀도 폴리에틸렌(LDPE)을 포함하되 에틸렌초산비닐을 폴리머층 전체 중량의 5 wt% 내지 25 wt% 함유하여, 자가점착성을 가지도록 한다. 외부 폴리머층(110)과, 부직포층(130)과, 내부 폴리머층(150)의 전체 두께는 250μm 내지 300μm가 되도록 두께를 조절하며 합지시키는 것이 바람직하다.The embossed nonwoven fabric is placed between the outer polymer layer and the inner polymer layer containing ethylene vinyl acetate and low-density polyethylene and laminated while passing through a roller (S330). The outer polymer layer and the inner polymer layer bonded to the top and bottom of the nonwoven fabric include ethylene vinyl acetate (EVA) and low-density polyethylene (LDPE), and contain 5 wt% to 25 wt% of ethylene vinyl acetate based on the total weight of the polymer layer, making them self-adhesive. to have. It is preferable to adjust the thickness and laminate the outer polymer layer 110, the non-woven fabric layer 130, and the inner polymer layer 150 so that the total thickness is 250 μm to 300 μm.
부직포층과 폴리머층이 합지된 제품의 내부 폴리머층 하부에 에스테르고무와 폴리이소부틸렌을 포함하는 점착제층을 도포한다(S350). 점착제층(170)은 아크릴릭 에스테르(Acrylic Ester) 기반의 에스테르(Ester) 고무와 폴리이소부틸렌(Poly iso butylene)이 포함된 점착제를 사용하여 도포한다. 이때, 점착제 100 중량부 기준으로, 용제 80 내지 90 중량부, 경화제 20 내지 40 중량부를 혼합한 점착액을 사용하여 점착층 도포과정을 실시하는 것이 바람직하다.An adhesive layer containing ester rubber and polyisobutylene is applied to the lower part of the internal polymer layer of the product in which the non-woven fabric layer and the polymer layer are laminated (S350). The adhesive layer 170 is applied using an adhesive containing acrylic ester-based ester rubber and polyisobutylene. At this time, it is preferable to carry out the adhesive layer application process using an adhesive solution mixed with 80 to 90 parts by weight of solvent and 20 to 40 parts by weight of curing agent, based on 100 parts by weight of adhesive.
제조된 포장재는 롤 권취기 등을 이용하여 롤에 말아서 포장재를 형성하는 것이 바람직하다(S370).It is desirable to form a packaging material by rolling the manufactured packaging material into a roll using a roll winder, etc. (S370).
이상과 같이 본 발명에서는 구체적인 구성 요소 등과 같은 특정 사항들과 한정된 실시예 및 도면에 의해 설명되었으나 이는 본 발명의 보다 전반적인 이해를 돕기 위해서 제공된 것일 뿐, 본 발명은 상기의 실시예에 한정되는 것은 아니며, 본 발명이 속하는 분야에서 통상적인 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형이 가능하다. 따라서, 본 발명의 사상은 설명된 실시예에 국한되어 정해져서는 아니되며, 후술하는 특허청구범위뿐 아니라 이 특허청구범위와 균등하거나 등가적 변형이 있는 모든 것들은 본 발명 사상의 범주에 속한다고 할 것이다.As described above, the present invention has been described with specific details such as specific components and limited embodiments and drawings, but this is only provided to facilitate a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , those skilled in the art can make various modifications and variations from this description. Accordingly, the spirit of the present invention should not be limited to the described embodiments, and the scope of the patent claims described below as well as all modifications that are equivalent or equivalent to the scope of this patent claim shall fall within the scope of the spirit of the present invention. .
본 발명은 부직포와 저밀도 폴리에틸렌 필름을 포함하는 선재 코일용 포장재로 사용할 수 있다.The present invention can be used as a packaging material for wire coils containing non-woven fabric and low-density polyethylene film.

Claims (5)

  1. 선재 코일용 포장재에 있어서, In the packaging material for wire coils,
    에틸렌초산비닐과 저밀도 폴리에틸렌을 포함하는 외부 폴리머층; 상기 외부 폴리머층 하부에 위치하는 부직포층; 및 상기 부직포층 하부에 위치하고 에틸렌초산비닐과 저밀도 폴리에틸렌을 포함하는 내부 폴리머층;을 포함하되,an outer polymer layer comprising ethylene vinyl acetate and low-density polyethylene; A non-woven fabric layer located below the outer polymer layer; And an internal polymer layer located below the non-woven fabric layer and containing ethylene vinyl acetate and low-density polyethylene.
    상기 부직포층은 평량이 20g/m2 내지 50g/m2인 폴리프로필렌 부직포인 것을 특징으로 하는 선재 코일용 포장재. A packaging material for wire coils, wherein the non-woven fabric layer is a polypropylene non-woven fabric with a basis weight of 20 g/m 2 to 50 g/m 2 .
  2. 제 1 항에 있어서, According to claim 1,
    상기 외부 폴리머층과 내부 폴리머층은, 에틸렌초산비닐을 폴리머층 전체 중량의 5 wt% 내지 25 wt% 함유하는 것을 특징으로 하는 선재 코일용 포장재. A packaging material for wire coil, characterized in that the outer polymer layer and the inner polymer layer contain 5 wt% to 25 wt% of ethylene vinyl acetate based on the total weight of the polymer layer.
  3. 제 1 항에 있어서, According to claim 1,
    상기 부직포층은 엠보 면적이 5% 내지 15%인 선형 엠보를 포함하는 것을 특징으로 하는 선재 코일용 포장재. The non-woven fabric layer is a packaging material for wire coil, characterized in that it includes linear emboss with an emboss area of 5% to 15%.
  4. 제 1 항에 있어서, According to claim 1,
    상기 외부 폴리머층, 부직포층 및 내부 폴리머층의 전체 두께는 250μm 내지 300μm인 것을 특징으로 하는 선재 코일용 포장재. A packaging material for wire coil, characterized in that the total thickness of the outer polymer layer, non-woven fabric layer, and inner polymer layer is 250 μm to 300 μm.
  5. 제 1 항에 있어서, According to claim 1,
    상기 내부 폴리머층 하부에 위치하는 점착제층을 더 포함하되, It further includes an adhesive layer located below the internal polymer layer,
    상기 점착제층은 에스테르고무와 폴리이소부틸렌을 포함하는 것을 특징으로 하는 선재 코일용 포장재. The adhesive layer is a packaging material for wire coil, characterized in that it contains ester rubber and polyisobutylene.
PCT/KR2022/003620 2022-03-14 2022-03-15 Packaging material for wire rod coil WO2023176991A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220031559A KR102481499B1 (en) 2022-03-14 2022-03-14 Packaging material for wire coil
KR10-2022-0031559 2022-03-14

Publications (1)

Publication Number Publication Date
WO2023176991A1 true WO2023176991A1 (en) 2023-09-21

Family

ID=84547817

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2022/003620 WO2023176991A1 (en) 2022-03-14 2022-03-15 Packaging material for wire rod coil

Country Status (2)

Country Link
KR (1) KR102481499B1 (en)
WO (1) WO2023176991A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587175A (en) * 1983-12-28 1986-05-06 Fuji Photo Film Co., Ltd. Laminate sheets
JP2002096414A (en) * 2000-09-21 2002-04-02 Diatex Co Ltd Synthetic resin sheet
KR20180010507A (en) * 2016-07-21 2018-01-31 주식회사 세화 Multilayer polymer package material for packaging steel coil
KR20180047805A (en) * 2016-11-01 2018-05-10 동원시스템즈 주식회사 Multi-layered film packing material and manufacturing method thereof
KR20190130742A (en) * 2018-05-15 2019-11-25 나용일 Nonwoven laminated sheet attached to the inner surface of a out door for a refrigerator and method of manufacturing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101030778B1 (en) 2009-03-09 2011-04-27 주식회사 삼부테크 Sheet for inhibiting corrosion and its manufacturing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587175A (en) * 1983-12-28 1986-05-06 Fuji Photo Film Co., Ltd. Laminate sheets
JP2002096414A (en) * 2000-09-21 2002-04-02 Diatex Co Ltd Synthetic resin sheet
KR20180010507A (en) * 2016-07-21 2018-01-31 주식회사 세화 Multilayer polymer package material for packaging steel coil
KR20180047805A (en) * 2016-11-01 2018-05-10 동원시스템즈 주식회사 Multi-layered film packing material and manufacturing method thereof
KR20190130742A (en) * 2018-05-15 2019-11-25 나용일 Nonwoven laminated sheet attached to the inner surface of a out door for a refrigerator and method of manufacturing the same

Also Published As

Publication number Publication date
KR102481499B1 (en) 2022-12-26

Similar Documents

Publication Publication Date Title
US8241751B2 (en) Glass roll and process for producing glass roll
KR20070088649A (en) Water-soluble film roll and method for paying out water-soluble film
USRE38852E1 (en) Tear/puncture resistant semi-laminate material
KR101030778B1 (en) Sheet for inhibiting corrosion and its manufacturing method
WO2023176991A1 (en) Packaging material for wire rod coil
CN113748019A (en) Binding band
JP2015505742A (en) Prestressed glass roll
JP2024069209A (en) Polyurethane Coated Heat Shrinkable Film
US20060182982A1 (en) Static COF differential poly film ream wrap
CN111954695B (en) Water-soluble film
US6818346B2 (en) Static COF differential poly film ream wrap
EP2931621B1 (en) A transport unit and a method for lifting such a transport unit
US4316933A (en) Tape for use as the warp and weft of woven fabrics particularly useful for packaging
KR102113528B1 (en) Anticorrosive Packing
RU179705U1 (en) PACKAGING ANTI-CORROSION MATERIAL
EP3638836B1 (en) Load restraint strip with stitchbond fabric base layer
US20080226904A1 (en) Linerless two-sided adhesive tape
JPS6285940A (en) Rust preventive sheet
TWI397488B (en) A packer with a composite belt and its application
JP3262640B2 (en) Laminate structure
WO2012148146A2 (en) Apparatus for manufacturing radiant barrier sleeve
TW202222577A (en) Binding tape
CN107757966A (en) A kind of packaging method of packaging plate glass
JP7395568B2 (en) coated heat shrinkable film
TW202218880A (en) Binding tape

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22932358

Country of ref document: EP

Kind code of ref document: A1