KR100876512B1 - Resin composition for food packaging material with odorless, high slip, and heat resistant - Google Patents

Resin composition for food packaging material with odorless, high slip, and heat resistant Download PDF

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KR100876512B1
KR100876512B1 KR1020020087853A KR20020087853A KR100876512B1 KR 100876512 B1 KR100876512 B1 KR 100876512B1 KR 1020020087853 A KR1020020087853 A KR 1020020087853A KR 20020087853 A KR20020087853 A KR 20020087853A KR 100876512 B1 KR100876512 B1 KR 100876512B1
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density polyethylene
weight
melt index
resin composition
density
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KR20040061578A (en
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홍명선
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삼성토탈 주식회사
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • 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
    • B65D65/02—Wrappers or flexible covers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/22—Compounds containing nitrogen bound to another nitrogen atom
    • C08K5/23—Azo-compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • C08K2003/3072—Iron sulfates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)

Abstract

본 발명은 무취성, 고슬립성, UV차단성을 지닌 식품포장용 수지 조성물에 관한 것으로, 보다 상세하게는 기본 수지로서 저밀도 폴리에틸렌, 선형저밀도 폴리에틸렌, 중밀도 폴리에틸렌, 고밀도 폴리에틸렌, 또는 에틸렌비닐아세테이트 수지를 사용하고, 산소포획제로서 산화황화 철을 사용하며, 고슬립성을 부여하는 첨가제로서 시스-13-도코센아마이드를 사용하고, 아조기와 벤젠기를 갖는 자외선차단제를 혼합하여 자외선 차단성을 가진 수지 조성물에 관한 것이다.The present invention relates to a resin composition for food packaging having an odorless, high slippery, UV-blocking properties, more specifically, low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, or ethylene vinyl acetate resin as a basic resin To a resin composition having ultraviolet blocking properties by using iron sulfide as an oxygen trapping agent, cis-13-dococene amide as an additive imparting high slip, and mixing a sunscreen having azo and benzene groups will be.

Description

무취성, 고슬립성, ＵＶ차단성을 지닌 식품포장재용 수지 조성물 {Compounds for Food Packaging with Odorless, High Slippage and Ultraviolet Blocking Property}{Compounds for Food Packaging with Odorless, High Slippage and Ultraviolet Blocking Property}

본 발명은 무취성, 고슬립성, UV차단성을 지닌 식품포장용 수지 조성물에 관한 것으로, 보다 상세하게는 기본 수지로서 저밀도 폴리에틸렌, 선형저밀도 폴리에틸렌, 중밀도 폴리에틸렌, 고밀도 폴리에틸렌, 또는 에틸렌비닐아세테이트 수지를 사용하고, 산소포획제로서 산화황화 철을 사용하며, 고슬립성을 부여하는 첨가제로서 시스-13-도코센아마이드를 사용하고, 아조기와 벤젠기를 갖는 자외선차단제를 혼합하여 자외선 차단성을 가진 수지 조성물에 관한 것이다.The present invention relates to a resin composition for food packaging having an odorless, high slippery, UV-blocking properties, more specifically, low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, or ethylene vinyl acetate resin as a basic resin To a resin composition having ultraviolet blocking properties by using iron sulfide as an oxygen trapping agent, cis-13-dococene amide as an additive imparting high slip, and mixing a sunscreen having azo and benzene groups will be.

기존의 식품 포장재는 단순히 저밀도 폴리에틸렌, 선형저밀도 폴리에틸렌, 중밀도 폴리에틸렌, 고밀도 폴리에틸렌, 에틸렌비닐아세테이트 수지를 사용하고 있다. 이들의 문제점은 이들 수지로 가공된 식품 포장용 필름들은 슬립성의 부재로 필름과 포장 내용물이 밀착되어 내용물의 일부가 사용이 불가하거나 파손되는 경우가 발생한다. 이를 위해 일부에서는 올레익아마이드나 에루카아마이드 계통의 슬립 제를 사용하여 필름의 슬립성을 부여하는 경우가 있으나 이들 슬립제는 슬립제 특유의 냄새 또는 필름 가공시 슬립제의 분해에 의해 냄새 발생으로 식품의 맛 등을 변질시키거나 사용자에게 역겨운 냄새를 주기 때문에 사용자가 기피하는 경우가 많아 이들 슬립제는 식품포장제에 사용되지 않고 있다. 또한 식품 보관 및 진열시 자외선에 노출됨으로써 자외선에 의한 열화가 포장제 및 포장 내용물에서 진행된다.
Existing food packaging materials simply use low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene vinyl acetate resin. Their problem is that the food packaging films processed with these resins are slippery members, and the film and the package contents are in close contact with each other, so that some of the contents cannot be used or are damaged. To this end, in some cases, oleic amide or erucamide type slip agent is used to impart slipperiness of the film. However, these slip agents may cause odors due to the peculiar smell of the slip agent or decomposition of the slip agent during film processing. Many slips are avoided by the user because they deteriorate the taste of food or give a disgusting smell to the user. These slip agents are not used in food packaging agents. In addition, exposure to ultraviolet light during food storage and display causes deterioration by ultraviolet light in packaging and packaging contents.

본 발명은 상기와 같은 종래기술의 문제점을 해결하기 위한 것으로, 식품의 보존기간을 연장시키기 위해 산소 차단기능을 가진 산소포획제로서 산화황화 철를 첨가하고, 슬립성을 부여하는 첨가제로서 시스-13-도코센아마이드를 사용함으로써 고슬립성을 가져오면서도 냄새가 나지 않고, 또한 아조기와 벤젠기를 갖는 자외선차단제를 혼합하여 자외선 차단성을 지닌 식품포장재용 수지 조성물을 제공하는 것이다.The present invention is to solve the problems of the prior art as described above, to add the iron sulfide as an oxygen trapping agent having an oxygen blocking function in order to extend the shelf life of food, cis-13- By using docosene amide, it is possible to provide a resin composition for a food packaging material having UV protection by mixing a sunscreen agent having a high slip property and no smell, and having an azo group and a benzene group.

즉, 본 발명은 기본수지로서 용융지수 0.1∼5.0 g/10분, 밀도 0.920∼0.928 g/㎤의 저밀도 폴리에틸렌, 용융지수 0.1∼3.0 g/10분, 밀도 0.920∼0.936 g/㎤의 선형저밀도 폴리에틸렌, 용융지수 0.1∼5.0 g/10분, 밀도 0.930∼0.940 g/㎤의 중밀도 폴리에틸렌, 용융지수 0.01∼2.0 g/10분, 밀도 0.940∼0.965 g/㎤의 고밀도 폴리에틸렌 또는 용융지수 0.1∼5.0 g/10분, 비닐아세테이트의 함량이 0.1∼25중량%인 에틸렌 비닐아세테이트 100중량부, 산소포획제로서 산화황화철 0.1∼20 중량부, 슬립제로서 시스-13-도코센아마이드 0.1∼10 중량부, 및 아조기와 벤젠기를 갖는 자외선차단제 0.1∼30 중량부를 포함하는 식품포장재용 수지 조성물에 대한 것이다.That is, the present invention is a low-density polyethylene having a melt index of 0.1 to 5.0 g / 10 minutes, a density of 0.920 to 0.928 g / cm 3, and a linear low density polyethylene having a melt index of 0.1 to 3.0 g / 10 minutes and a density of 0.920 to 0.936 g / cm 3 as a basic resin. Medium density polyethylene with a melt index of 0.1 to 5.0 g / 10 minutes, density 0.930 to 0.940 g / cm 3, high density polyethylene with a melt index of 0.01 to 2.0 g / 10 minutes and density 0.940 to 0.965 g / cm 3, or melt index of 0.1 to 5.0 g / 10 minutes, 100 parts by weight of ethylene vinyl acetate having a vinyl acetate content of 0.1 to 25% by weight, 0.1 to 20 parts by weight of iron sulfide as an oxygen trapping agent, 0.1 to 10 parts by weight of cis-13-dococeneamide as a slip agent, And 0.1 to 30 parts by weight of a sunscreen agent having an azo group and a benzene group.

이하에서 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail.

본 발명의 수지 조성물에 있어서, 기본수지로는 용융지수 0.1∼5.0 g/10분, 밀도 0.920∼0.928 g/㎤의 저밀도 폴리에틸렌(이하, LDPE이라 함), 용융지수 0.1∼3.0 g/10분, 밀도 0.920∼0.936 g/㎤의 선형저밀도 폴리에틸렌(이하, LLDPE이라 함), 용융지수 0.1∼5.0 g/10분, 밀도 0.930~0.940 g/㎤의 중밀도 폴리에틸렌(이하, MDPE이라 함), 용융지수 0.01∼2.0 g/10분, 밀도 0.940∼ 0.965 g/㎤의 고밀도 폴리에틸렌(이하, HDPE이라 함) 또는 용융지수 0.1∼5.0 g/10분, 비닐아세테이트의 함량이 0.1∼25중량% 인 에틸렌 비닐아세테이트(이하, EVA이라 함)를 사용한다.In the resin composition of the present invention, the basic resin may be a melt index of 0.1 to 5.0 g / 10 minutes, a low density polyethylene having a density of 0.920 to 0.928 g / cm 3 (hereinafter referred to as LDPE), a melt index of 0.1 to 3.0 g / 10 minutes, Linear low density polyethylene (hereinafter referred to as LLDPE) with a density of 0.920 to 0.936 g / cm 3, melt index of 0.1 to 5.0 g / 10 min, medium density polyethylene (hereinafter referred to as MDPE) with a density of 0.930 to 0.940 g / cm 3, melt index High density polyethylene (hereinafter referred to as HDPE) with 0.01 to 2.0 g / 10 minutes, density 0.940 to 0.965 g / cm 3 or ethylene vinyl acetate with a melt index of 0.1 to 5.0 g / 10 minutes and a vinyl acetate content of 0.1 to 25% by weight. (Hereinafter referred to as EVA) is used.

본원발명의 조성물에서는 산소차단기능을 증가시키기 위해 산소포획제로서 산화황화철을 첨가한다. 상기 산화황화철은 기본수지 100중량부 대비 0.1∼20 중량부의 범위로 첨가된다. In the composition of the present invention, iron oxide sulfide is added as an oxygen trapping agent to increase the oxygen blocking function. The iron sulfide is added in the range of 0.1 to 20 parts by weight based on 100 parts by weight of the base resin.

본원발명의 조성물에서는 슬립성을 부여하는 첨가제로서 시스-13-도코센아마이드를 사용함으로써 무취 상태에서 고슬립성을 부여한다. 상기 시스-13-도코센아마이드의 첨가량은 기본수지 100중량부 대비 0.1∼10 중량부의 범위로 첨가된다.In the composition of the present invention, cis-13-docosenamide is used as an additive for imparting slip properties, thereby giving high slipperiness in an odorless state. The amount of the cis-13-docosene amide added is added in the range of 0.1 to 10 parts by weight based on 100 parts by weight of the base resin.

본원발명의 조성물에서는 아조기와 벤젠기를 갖는 자외선차단제를 첨가하여 자외선 차단성을 부여한다. 이러한 자외선 차단제의 구체적인 예로는 아조디페닐아닐린 등을 예로 들 수 있다. 상기 자외선 차단제의 함량은 기본수지 100중량부 대 비 0.1∼30 중량부의 범위로 첨가된다.
In the composition of the present invention, a sunscreen agent having an azo group and a benzene group is added to impart UV blocking properties. Specific examples of such sunscreens include azodiphenylaniline and the like. The content of the sunscreen is added in the range of 0.1 to 30 parts by weight relative to 100 parts by weight of the base resin.

이하에서 실시예를 통하여 본 발명을 설명하고자 하나, 하기의 실시예는 설명의 목적을 위한 것으로 본 발명을 제한하고자 하는 것은 아니다.
Hereinafter, the present invention will be described through examples, but the following examples are for the purpose of explanation and are not intended to limit the present invention.

실시예 및 비교예Examples and Comparative Examples

하기 표 1에 나타난 성분 및 함량비로 건식혼합 후 압출기에 넣고 용융 혼합한 다음 제립화하였다. 이를 사용하여 냄새발생, 슬립성, 자외선 차단율, 식품보존기간을 상대 평가하였다. 냄새발생정도는 100CC 비이커에 각각의 비교예, 실시예의 조성비로 제립된 수지를 30CC씩 넣고 밀봉하여 48시간 경과후 10명의 패널로 구성된 시험원이 관응검사로 냄새를 측정하였다. 이때 비교예 1의 냄새 발생 정도를 100으로 보고 각각의 실시예에 대한 발생정도를 상대평가하였다. 즉 수치가 작을수록 냄새 발생 정도가 작음을 나타낸다. 슬립성은 각각의 비교예, 실시예의 조성비로 제립된 수지로 25미크론 두께의 필름을 브로운 필름기로 성형후 마찰계수를 측정하였으며 이도 비교예 1의 수지로 가공된 필름의 마찰계수를 100으로 보고 상대 평가하였다. 즉 수치가 작을수록 슬립성이 우수함을 나타낸다. 자외선 차단성은 JIS A5759의 방법으로 측정, 비교하였다. 식품보존기간은 각각의 비교예, 실시예의 조성비로 제립된 수지로 25미크론 두께의 필름을 브로운 필름기로 성형 후 이들 필름으로 오이를 랩핑하여 상온에서 10일 경과후 오이의 부패정도를 비교예 1의 경우를 100으로 보고 이에 대한 상대 비교를 하였다. 즉 수치가 작을수록 식품보존성이 우수함을 나타낸다. After the dry mixing with the ingredients and the content ratios shown in Table 1, put into an extruder and melt mixed and granulated. The results were used to evaluate odor, slip, UV protection, and food preservation period. The degree of odor was measured by putting 30 cc of resin granulated in the composition ratio of each Comparative Example and Example into a 100CC beaker and sealing it. At this time, the degree of occurrence of odor in Comparative Example 1 was measured as 100 and the degree of occurrence for each example was evaluated. That is, the smaller the value, the smaller the degree of odor. The slip property was measured by measuring the coefficient of friction after molding a 25 micron-thick film with a blown film using the resin granulated at the composition ratio of each comparative example and the example. Evaluated. That is, the smaller the value, the better the slip performance. UV blocking property was measured and compared with the method of JIS A5759. The food preservation period is a resin prepared by the composition ratio of each Comparative Example, Example, a 25-micron-thick film was molded with a blown film and then wrapped with cucumbers to compare the degree of corruption of cucumber after 10 days at room temperature In the case of 100, the relative comparison was made. That is, the smaller the value, the more excellent food preservation.                     

Figure 112002044006099-pat00001
Figure 112002044006099-pat00001

주) 슬립제 1: 올레익아마이드Slip agent 1: Oleamide

슬립제 2: 시스-13-도코센아마이드    Slip agent 2: cis-13-docoseneamide

자외선 차단제: 아조디페닐아닐린
Sunscreen: Azodiphenylaniline

본 발명의 수지 조성물은 기존슬립제 대비 슬립성을 유지하면서 냄새 발생 정도가 획기적으로 감소되었으며, 산소포획제, 자외선차단제를 사용하므로써 식품의 보존기간을 연장시킬 수 있는 장점이 있다
The resin composition of the present invention has significantly reduced the degree of odor generation while maintaining slip properties compared to the existing slip agent, there is an advantage that can extend the shelf life of food by using oxygen traps, sunscreens.

Claims (2)

기본수지로서 용융지수 0.1∼5.0 g/10분, 밀도 0.920∼0.928 g/㎤의 저밀도 폴리에틸렌, 용융지수 0.1∼3.0 g/10분, 밀도 0.920∼0.936 g/㎤의 선형저밀도 폴리에틸렌, 용융지수 0.1∼5.0 g/10분, 밀도 0.930∼0.940 g/㎤의 중밀도 폴리에틸렌, 용융지수 0.01∼2.0 g/10분, 밀도 0.940∼0.965 g/㎤의 고밀도 폴리에틸렌 또는 용융지수 0.1∼5.0 g/10분, 비닐아세테이트의 함량이 0.1∼25중량%인 에틸렌 비닐아세테이트 100중량부, 산소포획제로서 산화황화철 0.1∼20 중량부, 슬립제로서 시스-13-도코센아마이드 0.1∼10 중량부, 및 아조기와 벤젠기를 갖는 자외선차단제 0.1∼30 중량부를 포함하는 식품포장재용 수지 조성물.Low-density polyethylene with a melt index of 0.1 to 5.0 g / 10 min, density 0.920 to 0.928 g / cm3 as base resin, linear low density polyethylene with a melt index of 0.1 to 3.0 g / 10 min and density of 0.920 to 0.936 g / cm3, melt index of 0.1 to 5.0 g / 10 minutes, medium density polyethylene with a density of 0.930 to 0.940 g / cm 3, melt index 0.01 to 2.0 g / 10 minutes, high density polyethylene with a density of 0.940 to 0.965 g / cm 3 or melt index of 0.1 to 5.0 g / 10 minutes, vinyl 100 parts by weight of ethylene vinyl acetate having an acetate content of 0.1 to 25% by weight, 0.1 to 20 parts by weight of iron sulfide as an oxygen trapping agent, 0.1 to 10 parts by weight of cis-13-dococamide as a slip agent, and azo and benzene groups Having sunscreen 0.1-30 Resin composition for food packaging materials comprising a weight part. 제 1항에 있어서, 상기 아조기와 벤젠기를 갖는 자외선 차단제가 아조디페닐아닐린인 것을 특징으로 하는 식품포장재용 수지 조성물.The food composition of claim 1, wherein the sunscreen having the azo group and the benzene group is azodiphenylaniline.
KR1020020087853A 2002-12-31 2002-12-31 Resin composition for food packaging material with odorless, high slip, and heat resistant KR100876512B1 (en)

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