WO2013012242A2 - Biaxially stretched film for food protection - Google Patents

Biaxially stretched film for food protection Download PDF

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Publication number
WO2013012242A2
WO2013012242A2 PCT/KR2012/005706 KR2012005706W WO2013012242A2 WO 2013012242 A2 WO2013012242 A2 WO 2013012242A2 KR 2012005706 W KR2012005706 W KR 2012005706W WO 2013012242 A2 WO2013012242 A2 WO 2013012242A2
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WO
WIPO (PCT)
Prior art keywords
food
film
biaxially oriented
oriented film
biaxially stretched
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Application number
PCT/KR2012/005706
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French (fr)
Korean (ko)
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WO2013012242A3 (en
Inventor
심재헌
Original Assignee
Shim Jae Hun
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Publication date
Application filed by Shim Jae Hun filed Critical Shim Jae Hun
Priority to JP2014521551A priority Critical patent/JP2014527846A/en
Publication of WO2013012242A2 publication Critical patent/WO2013012242A2/en
Publication of WO2013012242A3 publication Critical patent/WO2013012242A3/en

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    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • 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
    • B32B5/022—Non-woven fabric
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • 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
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging

Definitions

  • the present invention relates to a biaxially oriented film for food coverings, to form a series of projections on one side of the biaxially oriented film having a predetermined rigidity to minimize the contact area during contact with the food to prevent food crushing, food
  • the texture of the present invention relates to a biaxially oriented film for food coverings that can preserve the taste.
  • the conventional means used as a rug to support the food there are various shapes of bowls, papers used as a temporary means, various types of film and the like.
  • the present invention has been made in order to solve the above-mentioned conventional problems, for the food rug for forming a series of projections on one side of the biaxially stretched film having a predetermined rigidity to minimize the contact area when in contact with food. It is an object to provide a biaxially oriented film.
  • an object of the present invention is to provide a clean oil-absorbing biaxially stretched film by replacing unsanitary papers.
  • the stretched film for catering foodstuff of the present invention for achieving the above object is a biaxially oriented film for supporting food, a series of projections are formed on one side of the biaxially stretched film in contact with the food, upon contact with the food Characterized in that the contact area is reduced.
  • the protrusion of the present invention is formed to have a structure in which the upper end thereof is perforated.
  • the protrusion may be formed by embossing or punching with a biaxially oriented film.
  • the material of the biaxially oriented film of the present invention is a thermoplastic polymer, and preferably formed of any one of polypropylene, polyester, nylon, polycarbonate, and polyethylene.
  • the biaxially oriented film of the present invention is formed of a material having a property of absorbing the oil of food, so that the oil is coated on the bottom surface of the rug film when contacting the film and food.
  • water or oil flowing out of the food by laminating a nonwoven fabric or papers on the back of the film or the film having a perforated protrusion, or the film having a perforated protrusion formed on the biaxially stretched film surface of the present invention. It is desirable to be absorbed into nonwovens or papers.
  • the nonwoven fabric of the present invention is to be any one of an airlaid nonwoven fabric, a spunlace nonwoven fabric, a hydrophilic nonwoven fabric, and a lipophilic nonwoven fabric.
  • the contact area with the food is minimized due to the protrusions provided on the film to prevent food crushing, and to improve the texture of the food to help preserve the taste Will be used.
  • the biaxially oriented film having the projections of the present invention can be usefully used as a rug of other things besides food.
  • the rug film of the present invention reduces the intake of the oil by discharging the oil of the base to help the preservation of the taste of the food as well as health.
  • the oil of the food is coated on the film having the projection of the present invention has the advantage that it is easy to wash the bowl.
  • FIG. 1 is a view showing a biaxially oriented film production apparatus for food in accordance with an embodiment of the present invention
  • Figure 2 is a view showing a biaxially oriented film production apparatus for food in accordance with another embodiment of the present invention
  • FIG. 3 is an enlarged cross-sectional view showing a state where a pin of a pin roll is inserted into a groove of a mating roll in the apparatus of FIG. 1;
  • Figure 4 is a diagram illustrating a photograph of a biaxially stretched film product for food in accordance with the present invention.
  • the biaxially oriented film for food covering according to the present invention is formed with a projection on one side of the film, the contact area between the film and the food is reduced to a minimum when food is in contact with the film surface formed with the projection.
  • the protrusions formed on one side of the biaxially stretched film have the stiffness of the biaxially stretched film, and the protrusions formed on one side of the film also exhibit the stiffness, so the shape of the protrusions formed by the load of food contacting the film surface is also stiff. This is because it can be maintained.
  • the important thing for the rug to support the food is to make the contact area between the rug and the food as small as possible. This is because it helps to preserve the taste of the food by preventing food crushing.
  • the protrusion formed on one side of the biaxially stretched film of the present invention also has a function of absorbing and coating the oily food of greasy food. This is because the biaxially oriented film having protrusions formed on one side thereof has a strong lipophilic function to adsorb oily food.
  • the plastic material is melted in an extruder, and then formed into a sheet state through a die. At this time, the formed sheet is first stretched 2 to 10 times in the machine direction, and then stretched 2 to 10 times in the cross direction in the tenter oven.
  • biaxially stretching the film increases the strength of the thermoplastic material, thereby making it possible to manufacture a biaxially stretched film having stiff characteristics.
  • the chain of polymer is aligned in the width direction of the machine direction has a property that does not stretch well even when pulled.
  • the non-stretched film as described above stretches well when pulled out.
  • thermoplastic material any one of polypropylene, polyester, nylon, and polycarbonate may be used as the thermoplastic polymer.
  • polypropylene, polyester, and the like are used the most, and the price is also low, which is effective for the present invention.
  • Biaxially oriented films are also possible for polyolefins such as polyethylene, copolymers of propylene and ethylene, and the like.
  • the biaxially stretched film does not conform to the present invention because there is no strength of the projection itself when forming a projection on one side of the film because it has a soft characteristic.
  • the biaxially oriented film when the protrusions are to be formed on one side of the biaxially oriented film, the biaxially oriented film may be formed by punching or embossing the biaxially oriented film.
  • FIG. 1 is a view showing a biaxially oriented film manufacturing apparatus for a perforated food rug according to an embodiment of the present invention
  • Figure 2 is a biaxially oriented film manufacturing apparatus for an embossed food rug according to another embodiment of the present invention
  • 3 is an enlarged cross-sectional view illustrating a state in which the pin of the pin roll is inserted into the groove of the mating roll in the apparatus of FIG. 1.
  • the biaxially stretched film 10 is perforated between the mating roll 30 by a pin (see 21 in FIG. 3) of the pin roll 20.
  • the counter roll 30 is then a roll having a hole (31 in FIG. 3) corresponding to the pin (21 in FIG. 3) or a rubber roll.
  • the pin roll 20 the biaxially stretched film 10 has a projection 40 while being perforated.
  • punching the biaxially stretched film 10 it is preferable to apply heat to the pin roll 20 or the counter roll 30.
  • reference numeral 5 denotes a first roller for winding or unwinding the film
  • reference numeral 50 denotes a second roller for finally winding the film product 10 ′ having the protrusion 40 formed thereon.
  • the projection 140 is formed by pressing the biaxially stretched film 10 passed through the biaxially stretched film 10 between the embossing roll 120 and the mating roll 130 having the protrusion shape. The formation of is made.
  • the counter roll 130 is formed of a rubber roll or a paper roll having an intaglio corresponding to the embossing projection.
  • Biaxially oriented film having protrusions on one side of the present invention prepared according to the above method is used as a food rug such as oily fried foods, pork cutlet, fried eggs, flour-containing subdivisions, grilled meats, grilled fish, etc.
  • the oil remaining in the food is coated on the base surface of the biaxially stretched film, which has the advantage of reducing the food oil. This is because the biaxially oriented film of the present invention has a tendency to adhere oil to the surface with good affinity with oil groups.
  • the biaxially stretched film having protrusions of the present invention can also be used as a rug of sashimi, raw meat, sliced fruits, lunch boxes, etc. to prevent food from soaking and preserve the taste.
  • polyolefin-based materials such as polypropylene among the many materials listed above have the best adhesion with oil. This is because the polyolefin-based material is produced from crude oil and is derived from oil. Especially in the case of food having a high temperature such as fried foods, a polyester biaxially oriented film having protrusions on one surface is advantageous.
  • Absorbent layer or oil absorption layer such as an absorptive nonwoven fabric, papers, a lipophilic nonwoven fabric, and a nonwoven fabric which has both absorptive and lipophilic property, can be laminated
  • a biaxially oriented film in which a perforated portion is additionally formed on the biaxially oriented film surface having protrusions as described above, an absorbent nonwoven fabric, a lipophilic nonwoven fabric, and a nonwoven fabric having both absorptive and lipophilic properties on the back side of the biaxially oriented film surface having perforated protrusions,
  • water or oil is discharged to the absorption layer or the oil absorption layer on the biaxially stretched surface having the projections.
  • the additionally formed perforation increases the discharge of food oil and water. This is because the biaxially stretched film surface having protrusions is a kind of bowl shape corresponding to the height of the projections, and contains some water or oil from food and the like, and perforations other than the projections are contained in the projection film bowl. Helps to drain oil and water.
  • Perforations in portions other than the projections were formed by passing a biaxially stretched film while pressing between a pointed pin-like pin and a rubber roll.
  • the perforations further formed are preferably flat or intaglio perforations opposite to the projections.
  • the absorbent layer or oil absorption layer (not shown), such as an absorptive nonwoven fabric, papers, or a lipophilic nonwoven fabric, can be laminated and used on the back surface of the biaxially stretched film surface which has the perforation process of this invention. This may enhance the absorption of food oil or water.
  • Polypropylene nonwovens are widely used as non-woven fabrics of polyolefin-based nonwoven fabrics, which are currently used as the lipophilic nonwoven fabrics.
  • bicomponent nonwoven fabrics mixed with polyethylene and polyfluoropropylene, bicomponent nonwoven fabrics with mixed polyethylene and polyester, Polyester nonwoven fabrics.
  • Non-woven fabrics currently being widely used as the hydrophilic nonwoven fabric include airlaid nonwoven fabric, air through nonwoven fabric, nonwoven fabric coated with hydrophilic agent, nonwoven fabric containing pulp and rayon fiber, nonwoven fabric including polyester, spunlace nonwoven fabric and the like.
  • the hydrophilic nonwovens generally have both absorbent and lipophilic properties at the same time.
  • the hot melt When laminating the hot melt, the hot melt is sprinkled on non-woven fabrics or papers, and the projection film is compressed and laminated.
  • Figure 4 is a view illustrating a photograph of a biaxially stretched film product for a food in accordance with the present invention, a projection of a predetermined interval is formed on one side of the film over the entire surface, the negative side layer is formed on the back side.
  • the height of the projections of the biaxially stretched film is formed to 30 ⁇ m to 1,500 ⁇ m, the height of the projections will vary depending on the temperature of the pin and the embossing roll, the film thickness, the line speed when forming the projections. For example, the thicker the film, the lower the line speed, and the higher the processing temperature, the higher the height of the projections.
  • the method of perforating a film with a pin is more advantageous than the method of embossing. That is, by forming the polypropylene biaxially oriented film having a thickness of 60 ⁇ m using the protrusion forming apparatus shown in FIG. 1, the biaxially oriented film was formed to form protrusions on one side of the film.
  • a biaxially stretched film having a projection on one side and a projection end perforated was prepared, and the density of the projection was about 9 per cm 2.
  • the height of the protrusions was formed from about 500 ⁇ m to 700 ⁇ m.
  • the bottom of the biaxially stretched film for rug was confirmed by the touch that the oil of the pork cutlet is coated.
  • the biaxially oriented film for rug according to the present invention is formed with a projection on one side of the film, to reduce the contact area with the food by contacting the bottom of the food on the top of the side on which the projection is formed, the film
  • the bottom surface of the food is formed of a material that absorbs oil from the food to prevent food from crushing, and improves the texture of the food to help preserve the taste.
  • protrusion of this invention can also be used as the covering of other things besides food.
  • the biaxially oriented film having the projections of the present invention may be used for cushioning.
  • a series of protrusions having a height of 30 ⁇ m to 1,500 ⁇ m is formed on one side of the biaxially stretched film having rigidity, and the protrusions are formed by perforating their upper ends or embossing the film.

Abstract

The present invention relates to a biaxially stretched film for food protection, and more particularly, to a biaxially stretched film for food protection having a predetermined strength and in which a series of protrusions are formed on one side of same so as to minimize a contact area between the food and the film, thereby preventing the food from spoiling and improving the texture of the food. Thus, the film of the present invention is effective in preserving the taste of the food.

Description

음식물 깔개용 이축연신 필름Biaxially oriented film for food coverings
본 발명은 음식물 깔개용 이축 연신필름에 관한 것으로, 소정의 강성을 갖는 이축연신 필름의 일측면상에 일련의 돌기가 형성되게 하여 음식물과의 접촉시 접촉면적이 최소화되어 음식물의 짓무름이 방지되고, 음식물의 질감이 좋아져 맛을 보존할 수 있는 음식물 깔개용 이축연신 필름에 관한 것이다.The present invention relates to a biaxially oriented film for food coverings, to form a series of projections on one side of the biaxially oriented film having a predetermined rigidity to minimize the contact area during contact with the food to prevent food crushing, food The texture of the present invention relates to a biaxially oriented film for food coverings that can preserve the taste.
일반적으로 음식물을 받치는 깔개로 사용되는 종래의 수단으로는 각종 형상의 그릇과, 임시적인 수단으로 사용되는 종이류 및 다양한 형태의 필름 등이 있다.In general, the conventional means used as a rug to support the food, there are various shapes of bowls, papers used as a temporary means, various types of film and the like.
깔개로 사용되는 종래의 필름 및 기름종이류는 대부분 그 접촉면이 평탄면으로 형성되어 음식물과의 접촉시 접촉면적이 넓어 음식물에 필름의 접촉부의 청결 여부에 따라 영향을 받게 된다. 또한, 음식물의 접촉부 면적이 증대하여 필름상에도 음식물의 접촉에 따른 청결성이 유지되지 못하는 문제점이 있었다.Conventional films and oil papers used as a rug are mostly formed in the contact surface is a flat surface and the contact area is wide when the contact with food is affected by the cleanliness of the contact portion of the film in food. In addition, the contact area of the food is increased, there is a problem that the cleanliness due to the contact of food on the film is not maintained.
또한, 음식물에 기름기가 있는 경우에는 일반그릇 및 필름 자체에서 기름기를 흡수할 수 없으므로 기름기가 외부로 흘러내려 주변을 오염시키게 된다.In addition, when the food is oily, since the general vessel and the film itself can not absorb the oil, the oil flows to the outside to pollute the surroundings.
기존에는 음식물 받침용으로 기름종이 또는 키친 타월 등이 많이 사용되고 있다. 그러나 종이류 등은 제조시에 화학약품을 많이 사용하고 폐지 등을 사용할 염려가 있고 음식물과의 접촉 면적이 많아 일부 종이 부스러기가 음식물에 붙을 수 있어 위생상 바람직하지 않은 문제점이 있다.Conventionally, oil paper or kitchen towels are used for food support. However, there is a concern that papers, etc., use a lot of chemicals at the time of manufacture and use waste paper, and have a large contact area with food, which may cause some paper debris to stick to food, which is undesirable in terms of hygiene.
본 발명은 상기한 종래의 문제점을 해결하기 위하여 안출된 것으로, 소정의 강성을 구비한 이축연신 필름의 일측면상에 일련의 돌기가 형성되게 하여 음식물과의 접촉시 접촉면적이 최소화 되도록 하는 음식물 깔개용 이축연신 필름을 제공하는 데 목적이 있다.The present invention has been made in order to solve the above-mentioned conventional problems, for the food rug for forming a series of projections on one side of the biaxially stretched film having a predetermined rigidity to minimize the contact area when in contact with food. It is an object to provide a biaxially oriented film.
또한, 본 발명은 비 위생적인 종이류를 대체하여 청결한 기름흡수용 이축연신 필름을 제공하는데 목적이 있다.In addition, an object of the present invention is to provide a clean oil-absorbing biaxially stretched film by replacing unsanitary papers.
또한, 본 발명은 돌기를 갖는 이축연신 필름의 배면에 부직포 또는 종이류를 합지하여 기름 또는 물기의 흡수를 보강하는 이축연신 필름을 제공하는 데에도 목적이 있다.It is also an object of the present invention to provide a biaxially oriented film for reinforcing absorption of oil or water by laminating a nonwoven fabric or papers on the back side of the biaxially oriented film having projections.
상기 목적을 달성하기 위한 본 발명의 음식물 깔개용 연신필름은, 음식물을 받치는 깔개용 이축연신 필름으로서, 음식물과 접촉하는 상기 이축연신 필름의 일측면상에 일련의 돌기가 형성되어, 음식물과의 접촉시 접촉면적이 줄어들도록 한 것을 특징으로 한다.The stretched film for catering foodstuff of the present invention for achieving the above object is a biaxially oriented film for supporting food, a series of projections are formed on one side of the biaxially stretched film in contact with the food, upon contact with the food Characterized in that the contact area is reduced.
본 발명의 상기 돌기는 그 상측단이 천공되어 있는 구조로 형성되게 하는 것이 바람직하다.Preferably, the protrusion of the present invention is formed to have a structure in which the upper end thereof is perforated.
또한, 상기 돌기는 이축연신 필름에 엠보싱을 하거나 핀으로 천공하여 형성되게 할 수 있다.In addition, the protrusion may be formed by embossing or punching with a biaxially oriented film.
본 발명의 이축연신 필름의 소재는 열가소성 폴리머로서, 폴리프로필렌, 폴리에스터, 나일론, 폴리 카보네이트, 폴리에틸렌 중 임의의 어느 하나로 형성되게 하는 것이 바람직하다.The material of the biaxially oriented film of the present invention is a thermoplastic polymer, and preferably formed of any one of polypropylene, polyester, nylon, polycarbonate, and polyethylene.
본 발명의 상기 이축연신 필름은 음식물의 기름기를 흡수하는 성질을 가진 재료로 형성되게 하여, 필름과 음식물과의 접촉시 기름이 깔개 필름의 바닥면에 코팅되도록 한다. The biaxially oriented film of the present invention is formed of a material having a property of absorbing the oil of food, so that the oil is coated on the bottom surface of the rug film when contacting the film and food.
또한, 본 발명의 상기 돌기를 갖는 이축연신 필름면상에 천공을 추가로 형성되게 한 필름이나, 천공 돌기를 갖는 필름의 배면에 부직포 또는 종이류가 합지되도록 하여, 음식물로 부터 흘러나온 물 또는 기름이 상기 부직포 또는 종이류로 흡수 되도록 하는 것이 바람직하다.In addition, water or oil flowing out of the food by laminating a nonwoven fabric or papers on the back of the film or the film having a perforated protrusion, or the film having a perforated protrusion formed on the biaxially stretched film surface of the present invention. It is desirable to be absorbed into nonwovens or papers.
본 발명의 상기 부직포는 에어레이드 부직포, 스펀레이스 부직포, 친수성 부직포, 친유성 부직포 중 임의의 어느 하나가 되도록 한다.The nonwoven fabric of the present invention is to be any one of an airlaid nonwoven fabric, a spunlace nonwoven fabric, a hydrophilic nonwoven fabric, and a lipophilic nonwoven fabric.
본 발명에 따르면, 음식물의 깔개로 사용되었을 때, 필름에 구비된 돌기로 인해 음식물과의 접촉면적이 최소화되어 음식물의 짓무름을 방지하여 주고, 음식물의 질감을 좋게 하여 맛을 보존하는데 도움을 주는 효과를 발휘하게 된다.According to the present invention, when used as a litter of the food, the contact area with the food is minimized due to the protrusions provided on the film to prevent food crushing, and to improve the texture of the food to help preserve the taste Will be used.
본 발명의 돌기를 갖는 이축연신 필름은 음식물 이외에도 다른 물건의 깔개로도 유용하게 사용될 수 있다.The biaxially oriented film having the projections of the present invention can be usefully used as a rug of other things besides food.
또한, 본 발명에 따르면 돌기가 구비된 필름상에 천공부를 형성하고, 필름의 배면부에 물 또는 기름 흡수지를 합쳐지게 구성함에 의해 음식물의 보관 및 처리를 깨끗하게 하는 효과를 발휘한다,In addition, according to the present invention by forming a perforation on the film provided with projections, by combining the water or oil absorbent paper on the back portion of the film has an effect of cleaning the food storage and treatment,
음식물의 짓무름은 음식물과 접시 등의 접촉면에서 많이 일어나게 되고, 이로 인해 음식물의 아삭한 맛을 없게 한다. 이는 접시와 음식물의 접촉면에 기름 또는 물 등이 고이게 되고, 접시에 고인 기름 또는 물 등이 다시 음식물을 짓무르게하기 때문이다. Food sores occur frequently at the contact surfaces of food and dishes, thereby eliminating the crispy taste of food. This is because oil or water is accumulated on the contact surface between the dish and the food, and oil or water accumulated on the dish causes the food to be rubbed again.
또한, 기름기 있는 음식물의 경우 본 발명의 깔개필름은 밑바탕의 기름을 배출시켜 기름의 섭취량을 줄여 줌으로써 음식물의 맛의 보존뿐만 아니라 건강에도 도움을 준다. In addition, in the case of greasy food, the rug film of the present invention reduces the intake of the oil by discharging the oil of the base to help the preservation of the taste of the food as well as health.
아울러, 본 발명의 돌기를 갖는 필름에 음식물의 기름이 코팅되어 그릇을 세척하기가 편하게도 하여주는 장점을 갖는다.In addition, the oil of the food is coated on the film having the projection of the present invention has the advantage that it is easy to wash the bowl.
도 1은 본 발명의 일실시예에 따른 음식물 깔개용 이축연신 필름 제조장치를 도시한 도면,1 is a view showing a biaxially oriented film production apparatus for food in accordance with an embodiment of the present invention,
도 2는 본 발명의 다른 실시예에 따른 음식물 깔개용 이축연신 필름 제조장치를 도시한 도면,Figure 2 is a view showing a biaxially oriented film production apparatus for food in accordance with another embodiment of the present invention,
도 3은 상기 도 1의 장치에서 핀 롤의 핀이 상대 롤의 홈 안으로 삽입되는 상태를 도시한 확대 단면도,3 is an enlarged cross-sectional view showing a state where a pin of a pin roll is inserted into a groove of a mating roll in the apparatus of FIG. 1;
도 4는 본 발명에 따른 음식물 깔개용 이축연신 필름 제품 사진을 예시한 도면임.Figure 4 is a diagram illustrating a photograph of a biaxially stretched film product for food in accordance with the present invention.
* 부호의 설명* Explanation of the sign
10 : 이축연신 필름 20 : 핀 롤 10 biaxially oriented film 20 pin roll
21 : 핀 30 : 상대 롤21: Pin 30: Relative Roll
31 : 홀 40 : 돌기31: hole 40: projection
120 : 엠보싱 롤 130 : 상대 롤120: embossing roll 130: opponent roll
140 : 돌기140: projection
이하 본 발명에 대해 첨부 도면을 참조하여 상세히 설명하기로 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
본 발명에 따른 음식물 깔개용 이축연신 필름은 필름의 일측면에 돌기가 형성된 것으로, 돌기가 형성된 필름면에 음식물이 접촉할 시 필름과 음식물간의 접촉 면적이 최소로 줄어들게 된다.The biaxially oriented film for food covering according to the present invention is formed with a projection on one side of the film, the contact area between the film and the food is reduced to a minimum when food is in contact with the film surface formed with the projection.
즉, 이축연신 필름의 일측면에 돌기를 형성시킨 것은 이축연신 필름이 뻣뻣한 성질을 가지고 있어 필름의 일측면에 형성된 돌기 또한 뻣뻣한 특성을 나타내므로 필름면에 접촉하는 음식물의 하중에 의해서도 형성된 돌기의 모양이 유지될 수 있기 때문이다.That is, the protrusions formed on one side of the biaxially stretched film have the stiffness of the biaxially stretched film, and the protrusions formed on one side of the film also exhibit the stiffness, so the shape of the protrusions formed by the load of food contacting the film surface is also stiff. This is because it can be maintained.
참고로, 음식물들을 받치는 깔개에 있어서 중요한 것은 깔개와 음식물간의 접촉면적이 가능한 줄어들도록 하는 것이다. 이는 음식물의 짓무름을 방지하여 음식물들의 맛을 보존하는데 도움을 주기 때문이다. 또한 본 발명의 이축연신 필름의 일측면에 돌기를 형성시킨 것은 기름기가 있는 음식물의 기름기를 흡수 코팅하는 기능도 갖는다. 이는 일측면에 돌기를 형성시킨 이축연신 필름은 친유성이 강하여 음식물의 기름기를 흡착하는 기능이 있기 때문이다.For reference, the important thing for the rug to support the food is to make the contact area between the rug and the food as small as possible. This is because it helps to preserve the taste of the food by preventing food crushing. In addition, the protrusion formed on one side of the biaxially stretched film of the present invention also has a function of absorbing and coating the oily food of greasy food. This is because the biaxially oriented film having protrusions formed on one side thereof has a strong lipophilic function to adsorb oily food.
이하에서는 본 발명에 따른 음식물 깔개용 이축연신 필름의 제조방법에 대해 살펴보기로 한다.Hereinafter, the manufacturing method of the biaxially oriented film for foodstuff covering according to the present invention will be described.
본 발명에 따른 음식물 깔개용 이축연신 필름을 제조하기 위해, 먼저 플라스틱 소재를 압출기에서 녹인 후, 다이스를 통하여 시트상태로 형성시킨다. 이때 상기 형성된 시트는 기계방향(machine direction)으로 일차로 2 내지 10배 연신되고, 다시 텐타 오븐에서 폭방향(cross direction)으로 2 내지 10배로 연신된다. In order to manufacture a biaxially oriented film for food covering according to the present invention, first, the plastic material is melted in an extruder, and then formed into a sheet state through a die. At this time, the formed sheet is first stretched 2 to 10 times in the machine direction, and then stretched 2 to 10 times in the cross direction in the tenter oven.
상기와 같이 필름을 이축 연신 시키면 열가소성 플라스틱 소재의 강도가 증가하여 뻣뻣한 특성의 이축연신 필름을 제조할 수 있게 된다.As described above, biaxially stretching the film increases the strength of the thermoplastic material, thereby making it possible to manufacture a biaxially stretched film having stiff characteristics.
또한 폴리머의 체인이 기계방향 폭 방향으로 정렬되어 잡아당겨도 잘 늘어나지 않는 성질을 갖게 된다.In addition, the chain of polymer is aligned in the width direction of the machine direction has a property that does not stretch well even when pulled.
상기와 같이 연신하지 않는 필름은 잡아당기면 잘 늘어난다.The non-stretched film as described above stretches well when pulled out.
상기 열가소성 플라스틱 소재로는 열가소성 폴리머로서, 폴리프로필렌, 폴리에스터, 나일론, 폴리카보네이트 소재 중 임의의 어느 하나를 사용할 수 있다.As the thermoplastic material, any one of polypropylene, polyester, nylon, and polycarbonate may be used as the thermoplastic polymer.
상기 소재들 중에서 폴리프로필렌, 폴리에스터 등이 가장 많이 사용되고 있으며, 가격도 저가이어서 본 발명에 유효하다. 또한 폴리에틸렌 및 프로필렌과 에틸렌의 공중합물 등의 폴리올레핀류의 소재 등도 이축연신 필름이 가능하다. Among the above materials, polypropylene, polyester, and the like are used the most, and the price is also low, which is effective for the present invention. Biaxially oriented films are also possible for polyolefins such as polyethylene, copolymers of propylene and ethylene, and the like.
가장 많이 사용되는 폴리올레핀류의 소재류에서는 폴리플로필렌의 강성이 제일 좋다.In the most widely used polyolefin materials, the stiffness of polyflopropylene is the best.
한편, 이축 연신이 이루어지지 않은 필름은 부드러운 특성을 가지고 있으므로 필름의 일측면에 돌기를 형성할 경우, 돌기 자체의 강도가 없어 본 발명에는 부합되지 않는다.On the other hand, the biaxially stretched film does not conform to the present invention because there is no strength of the projection itself when forming a projection on one side of the film because it has a soft characteristic.
본 발명에 따라 이축연신 필름의 일측면 상에 돌기를 형성하고자 할 경우, 이축연신 필름을 핀으로 천공하거나 엠보싱을 하여 형성할 수 있다.According to the present invention, when the protrusions are to be formed on one side of the biaxially oriented film, the biaxially oriented film may be formed by punching or embossing the biaxially oriented film.
도 1은 본 발명의 실시예에 따른 천공된 음식물 깔개용 이축연신 필름 제조장치를 도시한 도면이고, 도 2는 본 발명의 다른 실시예에 따른 엠보싱된 음식물 깔개용 이축연신 필름 제조장치를 도시한 도면이며, 도 3은 상기 도 1의 장치에서 핀 롤의 핀이 상대 롤의 홈 안으로 삽입되는 상태를 도시한 확대 단면도이다.1 is a view showing a biaxially oriented film manufacturing apparatus for a perforated food rug according to an embodiment of the present invention, Figure 2 is a biaxially oriented film manufacturing apparatus for an embossed food rug according to another embodiment of the present invention 3 is an enlarged cross-sectional view illustrating a state in which the pin of the pin roll is inserted into the groove of the mating roll in the apparatus of FIG. 1.
도 1에 도시된 바와 같이, 이축연신 필름(10)은 핀 롤(20)의 핀(도 3의 21 참조)에 의해 상대 롤(30)과의 사이에서 천공된다. 이때 상대 롤(30)은 핀(도 3의 21)에 상응하는 홀(도 3의 31)을 갖는 롤이거나 고무 롤이 되도록 한다. 상기의 핀 롤(20)에 의해 이축연신 필름(10)은 천공되면서 돌기(40)를 갖게 된다. 상기 이축연신 필름(10)을 천공할 시에는 핀 롤(20) 또는 상대 롤(30)에 열을 가하는 것이 바람직하다.As shown in FIG. 1, the biaxially stretched film 10 is perforated between the mating roll 30 by a pin (see 21 in FIG. 3) of the pin roll 20. The counter roll 30 is then a roll having a hole (31 in FIG. 3) corresponding to the pin (21 in FIG. 3) or a rubber roll. By the pin roll 20, the biaxially stretched film 10 has a projection 40 while being perforated. When punching the biaxially stretched film 10, it is preferable to apply heat to the pin roll 20 or the counter roll 30.
도 1에서, 미설명 부호 5는 필름(10)을 감거나 풀어지는 제1 롤러이고, 부호 50은 돌기(40)가 형성된 필름 제품(10´)을 최종 감는 제2 롤러이다.In FIG. 1, reference numeral 5 denotes a first roller for winding or unwinding the film 10, and reference numeral 50 denotes a second roller for finally winding the film product 10 ′ having the protrusion 40 formed thereon.
도 2에 도시된 바와 같이, 돌기 모양을 갖는 엠보싱 롤(120)과 상대 롤(130) 사이에서 이축연신 필름(10)을 통과시켜 통과되는 이축연신 필름(10)을 가압함에 의해 돌기(140)의 형성이 이루어진다. 이때 상기 상대 롤(130)은 고무롤로 형성하거나 또는 엠보싱 돌기에 상응하는 음각을 갖는 페이퍼 롤로 형성되도록 한다. As shown in FIG. 2, the projection 140 is formed by pressing the biaxially stretched film 10 passed through the biaxially stretched film 10 between the embossing roll 120 and the mating roll 130 having the protrusion shape. The formation of is made. At this time, the counter roll 130 is formed of a rubber roll or a paper roll having an intaglio corresponding to the embossing projection.
또한, 상기 돌기(140)의 형성 과정에서 상대 롤(130)에 열을 가하는 것이 바람직하다.In addition, it is preferable to apply heat to the mating roll 130 in the process of forming the protrusion 140.
상기의 방법에 따라 제조된 본 발명의 일측면에 돌기를 갖는 이축연신 필름은 기름기가 있는 튀김류, 돈까스, 계란 후라이, 밀가루를 포함하는 부침류, 구운 고기류, 구운 생선류 등의 음식물 깔개로 사용될 시에, 음식물에 남아 있는 기름기를 이축연신 필름의 바탕표면에 코팅 되게 하여 음식물의 기름기를 줄일수 있는 장점을 갖는다. 이는 본 발명의 이축연신 필름이 기름기와의 친화력이 좋아 기름을 강하게 표면에 부착시키는 성향이 있기 때문이다.Biaxially oriented film having protrusions on one side of the present invention prepared according to the above method is used as a food rug such as oily fried foods, pork cutlet, fried eggs, flour-containing subdivisions, grilled meats, grilled fish, etc. In addition, the oil remaining in the food is coated on the base surface of the biaxially stretched film, which has the advantage of reducing the food oil. This is because the biaxially oriented film of the present invention has a tendency to adhere oil to the surface with good affinity with oil groups.
또한 본 발명의 돌기를 갖는 이축연신 필름을 생선회, 생고기, 썰은 과일류, 도시락 등의 깔개로 사용해도 음식물의 짓무름을 방지하고, 맛을 보존하는데 도움을 준다. In addition, the biaxially stretched film having protrusions of the present invention can also be used as a rug of sashimi, raw meat, sliced fruits, lunch boxes, etc. to prevent food from soaking and preserve the taste.
상기한 특성을 갖는 본 발명의 소재로는 앞에서 열거한 다수의 재질 중 폴리프로필렌 등의 폴리올레핀계 소재가 가장 기름과의 부착력이 좋다. 이는 폴리올레핀계의 소재가 원유에서 산출되는 것으로 기름으로부터 산출된 소재이기 때문이다. 특히 튀김류와 같은 온도가 높은 음식물인 경우에는 일면에 돌기를 갖는 폴리에스터 이축연신 필름이 유리하다.As the material of the present invention having the above-mentioned characteristics, polyolefin-based materials such as polypropylene among the many materials listed above have the best adhesion with oil. This is because the polyolefin-based material is produced from crude oil and is derived from oil. Especially in the case of food having a high temperature such as fried foods, a polyester biaxially oriented film having protrusions on one surface is advantageous.
한편, 본 발명의 돌기를 갖는 이축연신 필름이 음식물의 기름 및 물을 더욱 흡수가 잘되도록 하기 위하여 돌기 이외의 부분에 천공부(미도시)를 추가로 형성 하거나, 천공 돌기를 갖는 이축연신 필름면의 배면에 흡수성 부직포, 종이류, 친유성 부직포, 흡수성과 친유성을 동시에 갖는 부직포 등의 흡수층 또는 흡유층(미도시)을 합지하여 사용할 수있다. On the other hand, the biaxially stretched film having a projection of the present invention to form a perforated portion (not shown) in a portion other than the projections in order to better absorb the oil and water of food, or biaxially stretched film surface having a perforated projection Absorbent layer or oil absorption layer (not shown), such as an absorptive nonwoven fabric, papers, a lipophilic nonwoven fabric, and a nonwoven fabric which has both absorptive and lipophilic property, can be laminated | stacked and used for the back surface.
상기와 같이 돌기를 갖는 이축연신 필름면에 천공부분을 추가로 형성한 이축연신 필름이나, 천공 돌기를 갖는 이축연신 필름면의 배면에 흡수성 부직포, 친유성 부직포, 흡수성과 친유성을 동시에 갖는 부직포, 종이류 등을 합지하면 돌기를 갖는 이축연신면에 물 또는 기름이 흡수층 또는 흡유층으로 배출이 된다. A biaxially oriented film in which a perforated portion is additionally formed on the biaxially oriented film surface having protrusions as described above, an absorbent nonwoven fabric, a lipophilic nonwoven fabric, and a nonwoven fabric having both absorptive and lipophilic properties on the back side of the biaxially oriented film surface having perforated protrusions, When paper or the like is laminated, water or oil is discharged to the absorption layer or the oil absorption layer on the biaxially stretched surface having the projections.
상기 추가로 형성된 천공부는 음식물의 기름과 물의 배출을 증가시킨다. 이는 돌기를 갖는 이축연신 필름면이 돌기 높이에 해당하는 일종의 그릇 형태가 되어있어, 음식물 등에서 나오는 물 또는 기름을 일부 담고 있게 되기 때문이고, 상기 돌기 천공부 이외의 천공 부분은 상기 돌기 필름 그릇에 담겨있는 기름과 물을 배출 에 도움을 준다. The additionally formed perforation increases the discharge of food oil and water. This is because the biaxially stretched film surface having protrusions is a kind of bowl shape corresponding to the height of the projections, and contains some water or oil from food and the like, and perforations other than the projections are contained in the projection film bowl. Helps to drain oil and water.
상기 돌기 이외 부분의 천공은 뾰족한 핀 모양의 핀과 고무 롤 사이에 이축 연신 필름을 가압하면서 통과시켜서 조성하였다. 추가로 형성되는 상기 천공부는 돌기와는 반대인 음각의 천공부로 되게 하거나 평평한 것이 바람직하다. Perforations in portions other than the projections were formed by passing a biaxially stretched film while pressing between a pointed pin-like pin and a rubber roll. The perforations further formed are preferably flat or intaglio perforations opposite to the projections.
또한 본 발명의 천공 돌기를 갖는 이축연신 필름 면의 배면에 흡수성 부직포, 종이류 또는 친유성 부직포 등의 흡수층 또는 흡유층(미도시)을 합지하여 사용할 수 있다. 이는 음식물의 기름 또는 물의 흡수를 보강할 수 있다.Moreover, the absorbent layer or oil absorption layer (not shown), such as an absorptive nonwoven fabric, papers, or a lipophilic nonwoven fabric, can be laminated and used on the back surface of the biaxially stretched film surface which has the perforation process of this invention. This may enhance the absorption of food oil or water.
상기 친유성 부직포로 현재 많이 사용되고 있는 부직포로는 폴리 올레핀계통의 부직포로서 폴리프로필렌 부직포가 많이 사용되고 있으며, 그외 폴리에틸렌과 폴리플로필렌이 혼합된 바이콤포넌트 부직포, 폴리에틸렌과 폴리에스터가 혼합된 바이콤포넌트 부직포, 폴리 에스터 부직포 등이 있다.Polypropylene nonwovens are widely used as non-woven fabrics of polyolefin-based nonwoven fabrics, which are currently used as the lipophilic nonwoven fabrics. In addition, bicomponent nonwoven fabrics mixed with polyethylene and polyfluoropropylene, bicomponent nonwoven fabrics with mixed polyethylene and polyester, Polyester nonwoven fabrics.
상기 친수성 부직포로 현재 많이 사용되고 있는 부직포로는, 에어레이드 부직포, 에어스루 부직포, 친수제가 코팅된 부직포, 펄프 및 레이온 섬유를 포함하는 부직포, 폴리에스터를 포함하는 부직포, 스펀 레이스 부직포 등이 있다. 상기 친수성 부직포들은 흡수성과 친유성을 일반적으로 동시에 갖고 있다.Non-woven fabrics currently being widely used as the hydrophilic nonwoven fabric include airlaid nonwoven fabric, air through nonwoven fabric, nonwoven fabric coated with hydrophilic agent, nonwoven fabric containing pulp and rayon fiber, nonwoven fabric including polyester, spunlace nonwoven fabric and the like. The hydrophilic nonwovens generally have both absorbent and lipophilic properties at the same time.
본 발명에서 상기 돌기 필름과 부직포 또는 종이류를 합지시에는, 엠보싱 합지, 핫 멜트를 사용하는 합지 방법이 있다.In the present invention, when laminating the protruding film and the nonwoven fabric or paper, there is a lamination method using embossed lamination and hot melt.
핫멜트를 합지시에는 부직포류 또는 종이류에 핫 멜트를 뿌리고 상기 돌기필름을 압착하여 합지한다.When laminating the hot melt, the hot melt is sprinkled on non-woven fabrics or papers, and the projection film is compressed and laminated.
엠보싱 합지시에는 초음파 엠보싱 합지, 가열된 엠보싱 롤에 의한 합지 등이 가능하다.At the time of embossing lamination, ultrasonic embossing lamination, lamination by heated embossing roll, etc. are possible.
도 4는 본 발명에 따른 음식물 깔개용 이축연신 필름 제품의 사진을 예시한 도면으로, 필름의 일측면상에는 일정 간격의 돌기가 면 전체에 걸쳐 형성되고, 그 배면측에는 음각층이 형성되어 있다.Figure 4 is a view illustrating a photograph of a biaxially stretched film product for a food in accordance with the present invention, a projection of a predetermined interval is formed on one side of the film over the entire surface, the negative side layer is formed on the back side.
이하에서는 폴리프로필렌 이축연신 필름을 이용하여 돌기를 형성하고, 돌기가 형성된 필름을 튀김류의 음식물의 깔개를 사용했을 경우의 일 실시예에 대해 설명하기로 한다.Hereinafter, an example will be described when a protrusion is formed using a polypropylene biaxially stretched film, and a film having protrusions is used as a rug of food.
상기 이축연신 필름의 돌기의 높이는 30㎛ 내지 1,500㎛ 로 형성하며, 돌기의 높이는 핀 및 엠보싱 롤의 온도, 필름 두께, 돌기 형성시 라인 스피드 등에 따라 달라지게 된다. 예컨대, 필름이 두꺼울수록 , 라인 스피드가 낮을수록 그리고 가공 온도가 높을수록 돌기의 높이는 높아지게 된다.The height of the projections of the biaxially stretched film is formed to 30㎛ to 1,500㎛, the height of the projections will vary depending on the temperature of the pin and the embossing roll, the film thickness, the line speed when forming the projections. For example, the thicker the film, the lower the line speed, and the higher the processing temperature, the higher the height of the projections.
한편, 본 발명의 이축연신 필름의 돌기를 높게 형성하는 데는 필름을 핀으로 천공하는 방법이 엠보싱 하는 방법보다 유리하다. 즉, 두께 60㎛의 폴리프로필렌 이축연신 필름을 도 1에 도시된 돌기 형성 장치를 이용하여 이축연신 필름을 천공함에 의해 필름의 일측면에 돌기를 형성하였다.On the other hand, in forming the protrusion of the biaxially stretched film of this invention high, the method of perforating a film with a pin is more advantageous than the method of embossing. That is, by forming the polypropylene biaxially oriented film having a thickness of 60 μm using the protrusion forming apparatus shown in FIG. 1, the biaxially oriented film was formed to form protrusions on one side of the film.
실시예의 결과, 일측면상에 돌기를 갖고 돌기 끝 부분이 천공된 이축연신 필름을 제조하였으며, 돌기의 밀도는 1㎠ 당 약 9 개였다.As a result of the embodiment, a biaxially stretched film having a projection on one side and a projection end perforated was prepared, and the density of the projection was about 9 per cm 2.
돌기의 위에 음식물(돈까스)를 올려놓았을 때, 돌기의 끝 부분만 음식물에 접촉되어 음식물과의 접촉 면적이 작음을 육안으로 확인할 수 있었다. 이때, 돌기의 높이는 약 500㎛ 내지 700㎛ 가 형성되었다.When the food (pork cutlet) was placed on the protrusion, only the tip of the protrusion was in contact with the food, so that the contact area with the food was small. At this time, the height of the protrusions was formed from about 500㎛ to 700㎛.
상기 깔개용 이축연신 필름의 밑바닥에는 돈까스의 기름이 코팅되었음을 촉감으로 확인하였다.The bottom of the biaxially stretched film for rug was confirmed by the touch that the oil of the pork cutlet is coated.
이상에서 설명한 바와 같이, 본 발명에 따른 깔개용 이축연신 필름은 필름의 일측면상에 돌기가 형성되고, 이 돌기가 형성된 측면의 상부에 음식물의 저부에 접촉하도록 하여 음식물과의 접촉면적을 줄이고, 필름의 바닥면은 음식물로부터 나오는 기름을 흡수하는 재질로 형성됨에 의해 음식물의 짓물러짐을 방지하여 주고, 음식물의 질감을 좋게 하여 맛을 보존하는데 도움을 주게 된다.As described above, the biaxially oriented film for rug according to the present invention is formed with a projection on one side of the film, to reduce the contact area with the food by contacting the bottom of the food on the top of the side on which the projection is formed, the film The bottom surface of the food is formed of a material that absorbs oil from the food to prevent food from crushing, and improves the texture of the food to help preserve the taste.
한편, 본 발명의 돌기를 갖는 이축연신 필름은 음식물 이외에도 다른 물건의 깔개로 사용할 수도 있다. 예컨대, 본 발명의 돌기를 갖는 이축연신 필름은 쿠션용으로 사용될 수도 있다. 이 경우 강성을 갖는 이축연신 필름의 일측면상에 높이가 30㎛ 내지 1,500㎛인 일련의 돌기가 형성되도록 하되, 상기 돌기는 그 상측단이 천공되거나, 필름에 엠보싱을 하여 형성되도록 한다.In addition, the biaxially stretched film which has the processus | protrusion of this invention can also be used as the covering of other things besides food. For example, the biaxially oriented film having the projections of the present invention may be used for cushioning. In this case, a series of protrusions having a height of 30 μm to 1,500 μm is formed on one side of the biaxially stretched film having rigidity, and the protrusions are formed by perforating their upper ends or embossing the film.

Claims (8)

  1. 음식물을 받치는 깔개용 이축연신 필름으로서,As biaxially oriented film for rug to support food,
    강성을 갖는 이축연신 필름의 일측면상에 상측단이 천공되어 있는 일련의 돌기가 형성되어,A series of protrusions are formed on one side of the biaxially stretched film having rigidity, the upper end of which is perforated.
    음식물과 상기 필름간의 접촉면적이 줄어들도록 한 음식물 깔개용 이축연신 필름.A biaxially oriented film for food covering to reduce the contact area between food and the film.
  2. 청구항 1 에 있어서,The method according to claim 1,
    상기 천공된 돌기는 이축연신 필름에 핀으로 천공하여 형성되는 음식물 깔개용 이축연신 필름.The perforated projections biaxially oriented film for food coverings are formed by punching the biaxially oriented film with a pin.
  3. 음식물을 받치는 깔개용 이축연신 필름으로서,As biaxially oriented film for rug to support food,
    강성을 갖는 이축연신 필름의 일측면상에 엠보싱에 의한 일련의 돌기가 형성되어, A series of projections by embossing is formed on one side of the biaxially stretched film having rigidity,
    음식물과 상기 필름간의 접촉면적이 줄어들도록 한 음식물 깔개용 이축연신 필름.A biaxially oriented film for food covering to reduce the contact area between food and the film.
  4. 청구항 1 내지 청구항 3 중 임의의 어느 한 항에 있어서,The method according to any one of claims 1 to 3,
    상기 이축연신 필름은 폴리프로필렌, 폴리에스터, 나일론, 폴리 카보네이트 중 임의의 어느 하나로 형성되는 음식물 깔개용 이축연신 필름The biaxially oriented film is a biaxially oriented film for food coverings formed of any one of polypropylene, polyester, nylon, polycarbonate
  5. 청구항 1 내지 청구항 3 중 임의의 어느 한 항에 있어서,The method according to any one of claims 1 to 3,
    상기 이축연신 필름은 음식물의 기름기를 흡수하는 성질을 가진 재료로 형성된 음식물 깔개용 이축연신 필름.The biaxially oriented film is a biaxially oriented film for food coverings formed of a material having a property of absorbing the oil of food.
  6. 청구항 1 또는 청구항 3에 있어서,The method according to claim 1 or 3,
    천공 돌기를 갖는 이축연신 필름 또는 돌기 이외의 부분에 천공부가 추가로 형성된 돌기를 갖는 이축연신 필름의 배면에 종이류 또는 부직포가 합지된 음식물 깔개용 이축연신 필름.A biaxially stretched film for food and beverage, wherein a paper or a nonwoven fabric is laminated on the back surface of the biaxially stretched film having perforated protrusions or the protrusions having protrusions formed at portions other than the protrusions.
  7. 청구항 6에 있어서, The method according to claim 6,
    상기 부직포는 에어레이드 부직포, 스펀레이스 부직포, 친수성 부직포, 친유성 부직포 중 임의의 어느 하나인 음식물 깔개용 이축연신 필름,The nonwoven fabric is a biaxially oriented film for food covering any one of airlaid nonwovens, spunlace nonwovens, hydrophilic nonwovens, lipophilic nonwovens,
  8. 쿠션용으로 사용되는 이축연신 필름으로서,As a biaxially oriented film used for cushions,
    강성을 갖는 이축연신 필름의 일측면상에 높이가 30㎛ 내지 1,500㎛인 일련의 돌기가 형성되며,A series of projections having a height of 30 μm to 1,500 μm is formed on one side of the biaxially stretched film having rigidity,
    상기 돌기는 그 상측단이 천공되거나, 필름에 엠보싱을 하여 형성되는 쿠션용 이축연신 필름.The projection is a biaxially oriented film for cushioning the upper end is formed or formed by embossing the film.
PCT/KR2012/005706 2011-07-18 2012-07-17 Biaxially stretched film for food protection WO2013012242A2 (en)

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