JPH075801B2 - Blocking resistance ethylene polymer film - Google Patents
Blocking resistance ethylene polymer filmInfo
- Publication number
- JPH075801B2 JPH075801B2 JP5364986A JP5364986A JPH075801B2 JP H075801 B2 JPH075801 B2 JP H075801B2 JP 5364986 A JP5364986 A JP 5364986A JP 5364986 A JP5364986 A JP 5364986A JP H075801 B2 JPH075801 B2 JP H075801B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- blocking
- aluminum silicate
- ethylene
- weight
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 230000000903 blocking effect Effects 0.000 title claims description 15
- 229920000573 polyethylene Polymers 0.000 title description 8
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 26
- 239000005977 Ethylene Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920001684 low density polyethylene Polymers 0.000 claims description 5
- 239000004702 low-density polyethylene Substances 0.000 claims description 5
- 229920013716 polyethylene resin Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 239000002981 blocking agent Substances 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 235000012211 aluminium silicate Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 241000519995 Stachys sylvatica Species 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- ZADYMNAVLSWLEQ-UHFFFAOYSA-N magnesium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[Mg+2].[Si+4] ZADYMNAVLSWLEQ-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007613 slurry method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、そのままではブロツキングしやすいエチレン
系重合体フイルムを基材とした耐ブロツキング性フイル
ムに関するものである。さらに詳しくいえば、本発明
は、耐ブロツキング性に優れるとともに、良好な透明性
及び色相を有し、かつ摩擦による白濁が極めて少ないポ
リエチレン系樹脂フイルムに関するものである。Description: FIELD OF THE INVENTION The present invention relates to an anti-blocking film based on an ethylene polymer film which is easy to block as it is. More specifically, the present invention relates to a polyethylene resin film having excellent blocking resistance, excellent transparency and hue, and having very little cloudiness due to friction.
従来の技術 従来、ポリオレフイン系フイルム、特に密度が0.94g/cm
3未満の中低密度ポリエチレンやエチレン単位が70重量
％以上のエチレン系共重合体の無添加フイルムはブロツ
キング性が大きいという欠点を有することが知られてい
る。Conventional technology Conventionally polyolefin film, especially density 0.94g / cm
It is known that medium-low density polyethylene of less than 3 and an additive-free film of an ethylene-based copolymer having an ethylene unit content of 70% by weight or more have a large blocking property.
このブロツキング性は、重ね合わされたフイルムを一枚
一枚剥離することを著しく困難にするもので、インフレ
ーシヨンフイルム成形から梱包までの各作業において著
しい障害となる。This blocking property makes it extremely difficult to peel the stacked films one by one, which is a serious obstacle in each work from the inflation film forming to the packaging.
このようなブロツキングを防止するためには、無機充て
ん剤の配合が有効であることが知られており、ポリエチ
レンフイルムには、これまでアンチブロツキング剤とし
て、シリカ粉末が用いられてきた。In order to prevent such blocking, it is known that the compounding of an inorganic filler is effective, and in the polyethylene film, silica powder has been used as an anti-blocking agent.
しかしながら、アンチブロツキング剤として、シリカ粉
末を使用した場合、フイルムの透明性が低下する上に、
取扱いや運搬などの際に、摩擦によりフイルムが損傷
し、白濁化するため、製品フイルムは外観上の品質が著
しく低下して、その商品価値が低下するのを免れない。However, when silica powder is used as the anti-blocking agent, the transparency of the film decreases and
During handling and transportation, the film is damaged due to friction and becomes cloudy, so that the quality of the product film is remarkably deteriorated in appearance and the commercial value thereof is unavoidably deteriorated.
発明が解決しようとする問題点 本発明の目的は、このようなアンチブロツキング剤とし
てシリカ粉末を用いた従来の耐ブロツキング性エチレン
系重合体フイルムが有する欠点を改良し、良好な透明性
及び色相を有し、かつ摩擦による白濁が極めて少ない耐
ブロツキング性の優れたエチレン系重合体フイルムを提
供することにある。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention An object of the present invention is to improve the drawbacks of the conventional anti-blocking ethylene-based polymer film using silica powder as the anti-blocking agent, and to obtain good transparency and (EN) It is intended to provide an ethylene polymer film having a hue and having an excellent blocking resistance, in which white turbidity due to friction is extremely small.
問題点を解決するための手段 本発明者ら鋭意研究を重ねた結果、そのままではブロツ
キングしやすいエチレン系重合体フイルムに特定の粒径
を有する含水ケイ酸アルミニウムと焼成ケイ酸アルミニ
ウムとの混合物を所定の割合で配合することにより、前
記目的に適合しうることを見出し、この知見に基づいて
本発明を完成するに至つた。Means for Solving the Problems As a result of repeated intensive studies by the present inventors, a mixture of hydrous aluminum silicate having a specific particle size and calcined aluminum silicate having a specific particle size is predetermined in an ethylene-based polymer film which is easy to block as it is. It has been found that the above purpose can be met by blending in the proportion of, and the present invention has been completed based on this finding.
すなわち、本発明は、中低密度ポリエチレン、エチレン
を主体とするエチレン系共重合体及びこれらの混合物の
中から選ばれた樹脂フイルムに対し、 （Ａ） 平均粒径0.1〜２μｍの含水ケイ酸アルミニウ
ムと、 （Ｂ） 平均粒径0.5〜５μｍの焼成ケイ酸アルミニウ
ム から成り、（Ａ）と（Ｂ）との重量比が10:90ないし95:
5の範囲にある混合物を、樹脂の重量に基づき0.01〜１
重量％の割合で配合したことを特徴とする耐ブロツキン
グ性ポリエチレン系樹脂フイルムを提供するものであ
る。That is, the present invention relates to a resin film selected from medium-low density polyethylene, an ethylene-based copolymer mainly composed of ethylene, and a mixture thereof (A) hydrous aluminum silicate having an average particle diameter of 0.1 to 2 μm. And (B) a sintered aluminum silicate having an average particle size of 0.5 to 5 μm, and the weight ratio of (A) to (B) is 10:90 to 95:
Mix the mixture in the range of 5 to 0.01-1 based on the weight of the resin.
Provided is a polyethylene resin film having a blocking resistance, which is characterized in that it is blended in a weight ratio.
本発明で用いられるフイルム基材は、密度が0.94g/cm3
未満のエチレンホモポリマー又はエチレンを主体とする
すなわちエチレン単位が70重量％以上のエチレン系共重
合体あるいはこれらの混合物であつて、アンチブロツキ
ング剤を添加しないと著しくブロツキングを起すもので
ある。該エチレン系共重合体としては、例えばエチレン
−α−オレフイン共重合体、エチレン−酢酸ビニル共重
合体、エチレン−メチレンメタクリレート共重合体又は
その金属塩置換物、エチレン−エチルアクリレート共重
合体又はその金属塩置換体など、それのみでフイルム化
した場合にはブロツキングしやすいエチレンの共重合体
を挙げることができる。The film substrate used in the present invention has a density of 0.94 g / cm 3
Of ethylene homopolymers or ethylene-based copolymers containing ethylene as a main component, that is, ethylene units of 70% by weight or more, or a mixture thereof, will cause significant blocking unless an anti-blocking agent is added. As the ethylene-based copolymer, for example, ethylene-α-olefin copolymer, ethylene-vinyl acetate copolymer, ethylene-methylene methacrylate copolymer or its metal salt substitute, ethylene-ethyl acrylate copolymer or its An ethylene copolymer, such as a metal salt-substituted product, which easily blocks when formed into a film by itself, can be mentioned.
本発明においては、アンチブロツキング剤として、平均
粒径0.1〜２μｍの含水ケイ酸アルミニウム及び平均粒
径0.5〜５μｍの焼成ケイ酸アルミニウムが用いられ
る。In the present invention, hydrous aluminum silicate having an average particle size of 0.1 to 2 μm and calcined aluminum silicate having an average particle size of 0.5 to 5 μm are used as the anti-blocking agent.
前記含水ケイ酸アルミニウムとしては、通常しやく熱減
量が10〜16重量％で、Al2O3,SiO2以外の成分が５重量％
以下のカオリンが用いられる。このようなものとして
は、例えばASPケイ酸アルミニウム170、同600、同900
（いずれもENGELHARD社製、商品名）などがある。As the hydrous aluminum silicate, the heat loss is usually 10 to 16% by weight and the components other than Al 2 O 3 and SiO 2 are 5% by weight.
The following kaolins are used. Examples of such materials include ASP aluminum silicate 170, 600, 900
(Both are manufactured by ENGELHARD, product name).
本発明においては、該含水ケイ酸アルミニウムの平均粒
径は0.1〜２μｍ、好ましくは0.3〜1.5μｍの範囲にあ
ることが必要である。この平均粒径が0.1μｍ未満では
ブロツキング防止効果が低く、また２μｍを超えるとフ
イルム表面のザラツキが多くなり好ましくない。In the present invention, the average particle size of the hydrous aluminum silicate needs to be in the range of 0.1 to 2 μm, preferably 0.3 to 1.5 μm. If the average particle size is less than 0.1 μm, the blocking prevention effect is low, and if it exceeds 2 μm, the surface roughness of the film increases, which is not preferable.
一方、焼成ケイ酸アルミニウムとしては、通常しやく熱
減量が２重量％以下で、Al2O3,SiO2以外の成分が５重量
％以下のカオリンが用いられる。このようなものとして
はSATINTONケイ酸アルミニウム５、同Special、同WHITE
TEX（いずれもENGELHARD社製、商品名）などがある。On the other hand, as the calcined aluminum silicate, kaolin whose heat loss is 2% by weight or less and which contains 5% by weight or less of components other than Al 2 O 3 and SiO 2 is usually used. Examples of such products include SATINTON aluminum silicate 5, the same Special and the same WHITE
There are TEX (both manufactured by ENGELHARD, product name).
本発明においては、該焼成ケイ酸アルミニウムの平均粒
径は0.5〜５μｍ、好ましくは0.8〜３μｍの範囲にある
ことが必要である。この平均粒径が0.5μｍ未満ではブ
ロツキング防止効果が低く、また５μｍを超えるとフイ
ルム表面にザラツキが多くなり好ましくない。In the present invention, the average particle diameter of the calcined aluminum silicate needs to be in the range of 0.5 to 5 μm, preferably 0.8 to 3 μm. If the average particle size is less than 0.5 μm, the blocking prevention effect is low, and if it exceeds 5 μm, the surface of the film is rough, which is not preferable.
従来、ケイ酸アルミニウムはアンチブロツキング剤とし
て検討されてきたが、シリカ、ケイ酸マグネシウム、硫
酸カルシウム、メタケイ酸カルシウムなどに比較して、
ブロツキング防止効果が劣り、かつフイルムの色相を劣
化するなどの理由で、実用的には使用困難とされていた
（特公昭52−31896号公報、特開昭57−25918号公報、特
開昭55−147537号公報） しかしながら、本発明に従い、含水ケイ酸アルミニウム
と焼成ケイ酸アルミニウムとを併用すれば、充分なブロ
ツキング防止効果が得られ、しかもフイルムの色相など
も劣化せずに、実用的には欠点のない優れたブロツキン
グ防止効果をもつポリエチレンフイルムを与えるという
予想外の結果が得られる。Conventionally, aluminum silicate has been studied as an anti-blocking agent, but compared with silica, magnesium silicate, calcium sulfate, calcium metasilicate, etc.,
It was considered practically difficult to use because of its poor antiblocking effect and deterioration of the hue of the film (Japanese Patent Publication No. 52-31896, Japanese Patent Publication No. 57-25918, and Japanese Patent Publication No. 55918). However, in accordance with the present invention, by using a combination of hydrous aluminum silicate and calcined aluminum silicate, a sufficient blocking preventing effect can be obtained, and further, the hue of the film is not deteriorated and practically used. The unexpected result is obtained, which gives a polyethylene film with a good antiblocking effect without defects.
本発明においては、前記含水ケイ酸アルミニウム及び焼
成ケイ酸アルミニウムの配合量は、その合計量が該ポリ
エチレン系重合体の重量に基づき0.01〜１重量％、好ま
しくは0.03〜0.6重量％の範囲になるように選ばれる。
この量が0.01重量％未満ではブロツキング防止効果が低
く、また１重量％を超えるとフイルムの外観や光学的特
性が低下する。また、好ましい配合量は使用するポリエ
チレンの種類によつて異なり、例えば低密度ポリエチレ
ンを用いる場合は0.03〜３重量％、エチレン−酢酸ビニ
ル共重合体を用いる場合は0.05〜0.5重量％の範囲で選
ぶのがよい。In the present invention, the total content of the hydrous aluminum silicate and the calcined aluminum silicate is in the range of 0.01 to 1% by weight, preferably 0.03 to 0.6% by weight, based on the weight of the polyethylene polymer. To be chosen.
If this amount is less than 0.01% by weight, the antiblocking effect is low, and if it exceeds 1% by weight, the appearance and optical properties of the film are deteriorated. Further, the preferable blending amount varies depending on the type of polyethylene used, and for example, it is selected in the range of 0.03 to 3% by weight when low density polyethylene is used and 0.05 to 0.5% by weight when ethylene-vinyl acetate copolymer is used. Is good.
この配合量から明らかなように、本発明においては、増
量剤や補強剤などの目的で使用する充てん剤としてのケ
イ酸アルミニウムの添加量範囲とは明白に異なるもので
ある。As is apparent from this blending amount, in the present invention, it is clearly different from the addition amount range of aluminum silicate as a filler used for the purpose of a filler or a reinforcing agent.
さらに、本発明においては、該含水ケイ酸アルミニウム
と焼成ケイ酸アルミニウムとの割合が重量比で10:90な
いし95:5、好ましくは50:50ないし90:10の範囲にあるこ
とが必要である。含水ケイ酸アルミニウムの割合が前記
範囲より少ないとブロツキング防止効果は優れるもの
の、フイルムの透明性が低下し、一方前記範囲より多い
とフイルムの透明性は優れるものの、ブロツキング防止
効果が低下する。Further, in the present invention, it is necessary that the weight ratio of the hydrous aluminum silicate and the calcined aluminum silicate is in the range of 10:90 to 95: 5, preferably 50:50 to 90:10. . When the proportion of hydrous aluminum silicate is less than the above range, the anti-blocking effect is excellent, but the transparency of the film is lowered, while when it is more than the above range, the anti-blocking effect is decreased although the transparency of the film is excellent.
本発明においては、該含水ケイ酸アルミニウム及び焼成
ケイ酸アルミニウムそれぞれ所定量を、例えば直接添加
方式、マスターバツチ方式、スラリー方式などによつ
て、エチレン系重合体基材に添加して混練し、得られた
組成物をフイルムに成形することによつて、所望の耐ブ
ロツキングフイルムを得ることができる。この際、他の
添加剤として滑剤が通常併用される。In the present invention, a predetermined amount of each of the hydrous aluminum silicate and the calcined aluminum silicate is added to an ethylene-based polymer base material and kneaded by, for example, a direct addition method, a master batch method, a slurry method, etc. By molding the composition into a film, a desired anti-blocking film can be obtained. At this time, a lubricant is usually used as another additive.
発明の効果 本発明の耐ブロツキングフイルムは、アンチブロツキン
グ剤としてシリカ粉末を使用した従来のブロツキング防
止用フイルムのもつ欠点が改良されたものであり、耐ブ
ロツキング性に優れるとともに、良好な透明性及び色相
を有し、かつ摩擦による白濁が極めて少ないなど、優れ
た特徴を有している。EFFECT OF THE INVENTION The anti-blocking film of the present invention is an improved one having the drawbacks of the conventional anti-blocking film using silica powder as an anti-blocking agent, and is excellent in anti-blocking property as well as excellent in anti-blocking property. It has excellent features such as transparency and hue, and very little cloudiness due to friction.
実施例 次に本発明によつて本発明をさらに詳細に説明する。EXAMPLES Next, the present invention will be described in more detail according to the present invention.
なお、フイルムは下記の方法により評価した。The film was evaluated by the following method.
フイルム外観：フイルムの透視外観を観察した。Film appearance: The transparent appearance of the film was observed.
色相：フイルムをつみ重ねた際の色相を観察した。Hue: The hue when the films were stacked was observed.
白斑点：シエーカーにてフイルム同士を滑らせた場合の
白斑点のつきやすさを観察した。White spots: The ease of white spots was observed when the films were slid on a shaker.
透明性：ヘイズ ASTM D−1003により測定 光沢度 ASTM D−2457により測定 透明度 平行透過、標準値10.00に対する比較値 ブロツキング:ASTM D−1893により測定（数値が低いと
ブロツキングが少なく、実用上好ましい。） 実施例１〜５、比較例１〜５ ポリエチレンとして、密度0.923g/cm3、メルトインデツ
クス3.0g/10分の高圧法により製造した低密度ポリエチ
レン樹脂ペレツトを用い、これに第１表に示すようなア
ンチブロツキング剤を所定量配合し、さらに滑剤として
エルカ酸アミド0.1重量％を配合して得られた組成物を
ペレツト化して、このペレツトをインフレ成形機によつ
て厚み35μｍのフイルムに成形した。Transparency: Haze Measured according to ASTM D-1003 Glossiness Measured according to ASTM D-2457 Transparency Parallel transmission, comparison value against standard value 10.00 Blocking: Measured according to ASTM D-1893 (Lower number means less blocking, which is preferable in practice) Examples 1 to 5 and Comparative Examples 1 to 5 As polyethylene, low density polyethylene resin pellets produced by the high pressure method having a density of 0.923 g / cm 3 and a melt index of 3.0 g / 10 minutes were used, and the results are shown in Table 1. A predetermined amount of such an anti-blocking agent is mixed, and 0.1% by weight of erucic acid amide is further mixed as a lubricant to form a pellet, and the pellet is made into a film having a thickness of 35 μm by an inflation molding machine. Molded.
フイルムの成形は、モダンマシナリー50mmインフレ成形
機を用い、ダイ径100φ、成形温度160℃、ブロー比1.5
で行つた。The film is molded using a modern machinery 50mm inflation molding machine, die diameter 100φ , molding temperature 160 ° C, blow ratio 1.5.
I went there.
得られたフイルムの評価結果を第２表に示す。The evaluation results of the obtained film are shown in Table 2.
第２表から（Ａ）、（Ｂ）両成分を併用することにより
ブロツキング防止効果と、透明性の両特性がともに優れ
たフイルムが得られることが明らかである。（Ａ）成分
単独ではフイルムの透明性は優れるものの、ブロツキン
グ防止効果が十分でなく、一方（Ｂ）成分単独では、ブ
ロツキング防止効果は優れるものの、フイルムの透明性
が十分でない。 From Table 2, it is clear that the combined use of both components (A) and (B) makes it possible to obtain a film having both excellent blocking-preventing effect and transparency. Although the transparency of the film is excellent when the component (A) is used alone, the anti-blocking effect is not sufficient. On the other hand, when the component (B) is used alone, the anti-blocking effect is excellent, but the transparency of the film is not sufficient.
炭酸カルシウムは、白濁の生成が低く、透明性の低下は
少ないものの、ブロツキング防止効果が低い。Calcium carbonate has a low white turbidity and a small decrease in transparency, but has a low blocking prevention effect.
天然のフツ石質凝灰岩より得られるケイ酸アルミニウム
であるゼオライトは、フイルムを着色させ、商品価値を
著しく損う。Zeolite, which is an aluminum silicate obtained from natural fluorspar tuff, colors the film and significantly impairs its commercial value.
実施例６、比較例６ 樹脂成分として、メルトインデツクス2.8g/10分酢酸ビ
ニル単位含有量６重量％のエチレン−酢酸ビニル共重合
体を用い、（Ａ）成分として平均粒径0.5μの含水カオ
リン0.14重量％を、（Ｂ）成分として平均粒径1.4μの
焼成カオリン0.06重量％を配合する他は、実施例１と同
様の方法でフイルム評価した結果を、シリカ0.2重量％
を配合した比較例６と共に第３表に示す。Example 6, Comparative Example 6 An ethylene-vinyl acetate copolymer having a melt index of 2.8 g / 10 minutes and a vinyl acetate unit content of 6% by weight was used as a resin component, and a water content having an average particle size of 0.5 μ was used as the component (A). The result of film evaluation was the same as in Example 1 except that 0.14% by weight of kaolin was mixed with 0.06% by weight of calcined kaolin having an average particle size of 1.4μ as the component (B), and 0.2% by weight of silica was used.
The results are shown in Table 3 together with Comparative Example 6 in which
Claims (1)
するエチレン系共重合体及びこれらの混合物の中から選
ばれた樹脂フイルムに対し、 （Ａ） 平均粒径0.1〜２μｍの含水ケイ酸アルミニウ
ムと、 （Ｂ） 平均粒径0.5〜５μｍの焼成ケイ酸アルミニウ
ム から成り、（Ａ）と（Ｂ）との重量比が10:90ないし95:
5の範囲にある混合物を、樹脂の重量に基づき0.01〜１
重量％の割合で配合したことを特徴とする耐ブロツキン
グ性ポリエチレン系樹脂フイルム。1. A resin film selected from medium-low density polyethylene, ethylene-based ethylene-based copolymers, and mixtures thereof, wherein (A) hydrous aluminum silicate having an average particle size of 0.1 to 2 μm , (B) made of calcined aluminum silicate having an average particle size of 0.5 to 5 μm, and the weight ratio of (A) to (B) is 10:90 to 95:
Mix the mixture in the range of 5 to 0.01-1 based on the weight of the resin.
A blocking resistant polyethylene resin film, characterized by being blended in a weight percentage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5364986A JPH075801B2 (en) | 1986-03-13 | 1986-03-13 | Blocking resistance ethylene polymer film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5364986A JPH075801B2 (en) | 1986-03-13 | 1986-03-13 | Blocking resistance ethylene polymer film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62212445A JPS62212445A (en) | 1987-09-18 |
| JPH075801B2 true JPH075801B2 (en) | 1995-01-25 |
Family
ID=12948730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5364986A Expired - Lifetime JPH075801B2 (en) | 1986-03-13 | 1986-03-13 | Blocking resistance ethylene polymer film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075801B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991003516A1 (en) * | 1989-09-06 | 1991-03-21 | Mark Anthony Cammiss | Activated earth polyethylene film |
| US9460829B2 (en) * | 2011-09-01 | 2016-10-04 | Sumitomo Chemical Company, Limited | Resin composition, resin pellet, method for producing resin pellet, and solar cell encapsulant |
| CN109021346A (en) * | 2018-06-12 | 2018-12-18 | 成都泽光生物科技有限公司 | A kind of biotic factor attachment proprietary material technology of the package |
-
1986
- 1986-03-13 JP JP5364986A patent/JPH075801B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62212445A (en) | 1987-09-18 |
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