JPS6363577B2 - - Google Patents
Info
- Publication number
- JPS6363577B2 JPS6363577B2 JP56145490A JP14549081A JPS6363577B2 JP S6363577 B2 JPS6363577 B2 JP S6363577B2 JP 56145490 A JP56145490 A JP 56145490A JP 14549081 A JP14549081 A JP 14549081A JP S6363577 B2 JPS6363577 B2 JP S6363577B2
- Authority
- JP
- Japan
- Prior art keywords
- polypropylene
- parts
- weight
- self
- polyethylene
- 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
Links
- -1 polyethylene Polymers 0.000 claims description 59
- 229920001155 polypropylene Polymers 0.000 claims description 31
- 239000004743 Polypropylene Substances 0.000 claims description 30
- 239000004698 Polyethylene Substances 0.000 claims description 15
- 229920006280 packaging film Polymers 0.000 claims description 15
- 239000012785 packaging film Substances 0.000 claims description 15
- 229920000573 polyethylene Polymers 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 13
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 9
- 239000003208 petroleum Substances 0.000 claims description 7
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 6
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 13
- 229930195729 fatty acid Natural products 0.000 description 13
- 239000000194 fatty acid Substances 0.000 description 13
- 150000002148 esters Chemical class 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 6
- 150000004665 fatty acids Chemical class 0.000 description 6
- 235000013305 food Nutrition 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 229920001451 polypropylene glycol Polymers 0.000 description 3
- 239000005033 polyvinylidene chloride Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 230000002087 whitening effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- CMCBDXRRFKYBDG-UHFFFAOYSA-N 1-dodecoxydodecane Chemical compound CCCCCCCCCCCCOCCCCCCCCCCCC CMCBDXRRFKYBDG-UHFFFAOYSA-N 0.000 description 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004705 High-molecular-weight polyethylene Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 229920006127 amorphous resin Polymers 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000223 polyglycerol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はポリプロピレン樹脂系配合物による自
己粘着性包装用フイルムに関し、詳しくは改善さ
れた粘着性、透明性、カツト性を有し、かつ電子
レンジ適性も有する自己粘着性包装用フイルムに
関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a self-adhesive packaging film made of a polypropylene resin compound, and more specifically, it has improved adhesiveness, transparency, and cuttability, and has improved electronic The present invention relates to a self-adhesive packaging film that also has microwave suitability.
［従来の技術］
この種の自己粘着性包装用フイルムは、食品を
密封包装するために、一般家庭、飲食店、ホテル
等において多用されており、冷蔵庫中に保存する
場合の乾燥防止、電子レンジ中で加熱する場合の
乾燥防止、あるいは保存中の風味ないし臭気の放
散または臭気の吸着防止、そして営業用に使用さ
れる場合の塵埃の付着防止などの効果を発揮す
る。とくに近時における電子レンジの普及に伴な
い、この用途での需要が大巾に増加している。即
ち、電子レンジ中で食品を調理したり温めたりす
る際に、食品の水分が蒸発し風味を失なうことを
防止するため、食品を入れた容器（一般には陶磁
器やガラス製のもの）を密封包装するのに用いら
れている。[Prior Art] This type of self-adhesive packaging film is widely used in households, restaurants, hotels, etc. to hermetically package food products, and is used to prevent drying when stored in refrigerators, and to prevent drying when stored in microwave ovens. It exhibits effects such as preventing drying when heated inside, preventing flavor or odor from dissipating or adsorbing odor during storage, and preventing dust from adhering when used for commercial purposes. In particular, with the recent spread of microwave ovens, the demand for this application has increased significantly. In other words, when cooking or heating food in a microwave oven, the container (generally made of ceramic or glass) containing the food must be used to prevent water from evaporating and losing flavor. Used for sealed packaging.
かかる用途に用いられる包装用フイルムは、上
記容器との粘着性或いは該フイルム同志の粘着性
を有することの他、電子レンジ中での熱収縮が小
さく且つ熱溶融や白化現象を起こさない性質（以
下、「電子レンジ適性」という。）を有することが
要求される。 The packaging film used for such purposes has properties such as having low heat shrinkage in a microwave oven and not causing thermal melting or whitening phenomenon (hereinafter referred to as , "Microwave Suitability").
従来の自己粘着性包装フイルムは、ポリ塩化ビ
ニリデン、ポリエチレン、ポリ塩化ビニルを主原
料とするものが知られている。しかしながら、ポ
リ塩化ビニリデンによるフイルムは、加熱時の収
縮が大きいという不都合があり、ポリエチレンに
よるフイルムは、油物（例えば食肉やてんぷら
等。）に接触し且つ高熱となつた場合はフイルム
が溶融してしまうという欠点があり、さらに、ポ
リ塩化ビニルによるフイルムは、沸騰熱湯に接触
すると白化現象を起こし問題がある。従つて、こ
れら従来の自己粘着性フイルムは、いずれも電子
レンジ適性としては不充分である。 Conventional self-adhesive packaging films are known that are mainly made of polyvinylidene chloride, polyethylene, or polyvinyl chloride. However, films made of polyvinylidene chloride have the disadvantage of large shrinkage when heated, and films made of polyethylene melt if they come into contact with oily foods (e.g. meat, tempura, etc.) and are exposed to high heat. In addition, films made of polyvinyl chloride suffer from a whitening phenomenon when they come into contact with boiling water. Therefore, all of these conventional self-adhesive films are inadequate in microwave oven suitability.
更に、かかる用途に用いられる自己粘着性包装
用フイルムの切断機構ないし使用方法は、例えば
紙管などの芯材に巻装された巾20〜45cm、厚さ10
〜20μmのフイルムを、紙箱などのケースに収納
してあり、このケースに取付けられた「のこ刃」
と呼ばれる切断刃に当ててフイルムを引き取つて
適宜の長さに切断し、フイルムの有する粘着性に
より、食品収納容器類の開口部や食品の切り口を
密封するものである。 Furthermore, the cutting mechanism and usage method for the self-adhesive packaging film used for such purposes is, for example, a film with a width of 20 to 45 cm and a thickness of 10 cm wrapped around a core material such as a paper tube.
~20 μm film is stored in a case such as a paper box, and a "saw blade" is attached to this case.
The film is placed against a cutting blade known as a "cutting blade" and cut into appropriate lengths, and the film's adhesive properties seal the openings of food storage containers and the cut ends of the food.
フイルムの切断に利用される「のこ刃」として
は、一般に、0.2mm厚程度の鉄板をのこぎり型に
打ち抜いただけの簡単な刃が使用されており、ま
た、この「のこ刃」を支えるケースについても、
350〜700ｇ／m2程度のコートボール紙製の紙箱が
使われており、剛性は極く低い。 The ``saw blade'' used to cut film is generally a simple blade made by punching out a saw-shaped iron plate approximately 0.2 mm thick, and a saw blade that supports this ``saw blade'' is generally used. Regarding the case,
Paper boxes made of coated cardboard with a weight of about 350 to 700 g/m 2 are used, and their rigidity is extremely low.
この種のフイルムは、このような簡単な切断機
構によつても、使用者の意志に従つて容易に切断
されることが要請されるのであるが、実際は、ケ
ースや「のこ刃」が変形したりするばかりでな
く、フイルムが変形したり、「のこ刃」から外れ
た位置で切断が起こつたりする場合がある。具体
的に述べると、従来のポリ塩化ビニリデンによる
フイルムは、切断の際、フイルムの一部に裂け目
ができると、この裂け目が広がつて、「のこ刃」
に沿つて切断されることなく斜めに切れてしま
う。また従来のポリエチレンによるフイルムは、
切断時に可成りの引張力を要し、ケースが曲折し
たりするばかりでなく、フイルムが変形したりす
る。 This type of film is required to be easily cut according to the user's will even with such a simple cutting mechanism, but in reality, the case and "saw blade" are deformed. In addition to this, the film may be deformed or cut at a position that is outside the ``saw blade''. Specifically, when cutting conventional polyvinylidene chloride films, if a tear is created in a part of the film, this tear widens and becomes a "saw blade".
It is cut diagonally instead of along. In addition, conventional polyethylene films are
A considerable tensile force is required during cutting, which not only bends the case but also deforms the film.
このため、従来あまり試みられなかつたポリプ
ロピレンを主原料とする包装用フイルムの開発を
進め、先に特開昭55−133439号においてポリプロ
ピレンにポリエチレンを特定量配合して得られる
フイルムを提案した。しかし粘着性、透明性、カ
ツト性および電子レンジ適性において満足のいく
ものではなかつた。 For this reason, we proceeded with the development of a packaging film using polypropylene as the main raw material, which had not been tried before, and previously proposed a film obtained by blending a specific amount of polyethylene with polypropylene in JP-A-55-133439. However, the adhesiveness, transparency, cuttability, and suitability for microwave ovens were not satisfactory.
［発明の目的］
そこで本発明の目的は、粘着性、透明性、カツ
ト性および電子レンジ適性のより優れた自己粘着
性包装用フイルムを提供することにある。[Object of the Invention] Therefore, an object of the present invention is to provide a self-adhesive packaging film that has superior adhesiveness, transparency, cuttability, and microwave oven suitability.
［発明の構成］
上記本発明の目的は、ポリプロピレン100部に
対し、数平均分子量が３万以下で500以上のポリ
エチレン２〜70部を含み、かつ、ノルマルヘプタ
ン抽出残分が95重量％以下で30重量％以上になる
ようにアタクチツクポリプロピレン、石油樹脂及
びロジンの少なくとも１種を配合してなるポリプ
ロピレン樹脂配合物を製膜してなることを特徴と
する自己粘着性包装用フイルムによつて達成され
る。[Structure of the Invention] The object of the present invention is to produce a polyethylene containing 2 to 70 parts of polyethylene having a number average molecular weight of 30,000 or less and 500 or more per 100 parts of polypropylene, and with a normal heptane extraction residue of 95% by weight or less. Achieved by a self-adhesive packaging film characterized by forming a polypropylene resin compound containing at least one of atactic polypropylene, petroleum resin, and rosin in an amount of 30% by weight or more. be done.
また上記樹脂配合物において該ポリプロピレン
樹脂系配合物中のポリプロピレン100部に対し、
界面活性剤0.01〜５部を含むものが特に製膜した
場合自己粘着性包装用フイルムとして好ましい。 In addition, in the above resin blend, for 100 parts of polypropylene in the polypropylene resin blend,
A self-adhesive packaging film containing 0.01 to 5 parts of a surfactant is particularly preferred when formed into a film.
以下、本発明について詳述する。 The present invention will be explained in detail below.
本発明にいうポリプロピレンとは、主としてプ
ロピレンの重合体である。また他のα−オレフイ
ン（例えばエチレン、ブテン、ヘキセン等）の１
種あるいは２種以上とのコポリマーを含むもので
ある。 The polypropylene referred to in the present invention is primarily a propylene polymer. Also, one of other α-olefins (e.g. ethylene, butene, hexene, etc.)
It includes a species or a copolymer with two or more species.
また、本発明で規定する数平均分子量が３万以
下で500以上のポリエチレンについては、その製
造法の如何にかかわるものでなく、前記の如く、
数平均分子量〔〕によつてのみ規定される。
現在の製造法としては、分子量３万以上のポリエ
チレンから分解により分子量を低下せしめたも
の、分子量の小さいポリエチレンの合成によるも
の、又は高分子量ポリエチレンの製造時の副生品
である低分子量品の分離等の製法が知られてい
る。また別に、これに類するものとして、若干の
官能基を持ち、懸濁可能としたもの等がある。こ
れらのいずれによるものであつても、数平均分子
量〔〕が、本発明の範囲に含まれるものであ
れば、本発明の効果を発揮する。即ち、透明性を
阻害することなく、カツト性の向上に寄与する。 In addition, as for polyethylene having a number average molecular weight of 30,000 or less and 500 or more as defined in the present invention, it does not matter how it is produced; as mentioned above,
Defined only by number average molecular weight [ ].
Current manufacturing methods include reducing the molecular weight by decomposing polyethylene with a molecular weight of 30,000 or more, synthesizing polyethylene with a lower molecular weight, or separating low-molecular-weight products that are by-products during the production of high-molecular-weight polyethylene. Other manufacturing methods are known. In addition, there are also similar products that have some functional groups and can be suspended. No matter which one of these is used, the effects of the present invention can be exhibited as long as the number average molecular weight [ ] is within the scope of the present invention. That is, it contributes to improving cuttability without impeding transparency.
数平均分子量〔〕が３万を越えた場合、透
明性、粘着性の悪化をきたし、又、500未満では、
本発明の効果が小さい。 If the number average molecular weight [ ] exceeds 30,000, transparency and adhesiveness will deteriorate, and if it is less than 500,
The effect of the present invention is small.
本発明において、好ましくは数平均分子量
〔〕が1000〜5000程度のポリエチレンを用い
ることである。一般に、ポリエチレンワツクスと
呼ばれるものがこれに含まれる。添加量について
は、ポリプロピレン100部に対し、２部未満では
効果が小さく、かつ70部を越える場合では、ポリ
プロピレン本来の性能を失うことになり、ひいて
は、電子レンジ適性等に支障をきたすことにな
る。数平均分子量〔〕の測定法としては、希
薄溶液による方法、分光光度計による方法等があ
るが、特定の測定法に限定されるものではない。 In the present invention, preferably polyethylene having a number average molecular weight [] of about 1000 to 5000 is used. This generally includes what is called polyethylene wax. Regarding the amount added, if it is less than 2 parts per 100 parts of polypropylene, the effect will be small, and if it exceeds 70 parts, the original performance of polypropylene will be lost, and this will affect its suitability for microwave ovens etc. . Methods for measuring the number average molecular weight include a method using a dilute solution and a method using a spectrophotometer, but the method is not limited to a specific method.
本明細書において、ノルマルヘプタン抽出残分
とは、ポリプロピレンにおいては通常行われてい
るIsotactic Indexと呼ばれる数値であり、本発
明のポリプロピレン樹脂系配合物によるフイルム
をソツクスレー抽出器を用いて沸騰したノルマル
ヘプタンで24時間抽出し、その残部を乾燥、秤量
し、抽出前のフイルム全重量との比をもつて示さ
れる数値である。 In this specification, the normal heptane extraction residue is a numerical value called Isotactic Index, which is commonly used for polypropylene. The film is extracted for 24 hours, the remainder is dried and weighed, and the value is expressed as the ratio to the total weight of the film before extraction.
本発明においては、ポリプロピレン100部に対
し、数平均分子量が３万以下で500以上のポリエ
チレン２〜70部を含むものに、アクタチツクポリ
プロピレン、石油樹脂及びロジンの少なくとも１
種を配合し、製膜した自己粘着性包装用フイルム
のノルマルヘプタン抽出残分が95重量％以下で30
重量％以上になるようにするところに特徴があ
り、ノルマルヘプタン抽出残分が95重量％を越
え、またはヘプタン抽出残分が30重量％未満であ
ると、陶磁器やガラス製の容器に対する粘着性な
いし密着性、およびフイルム自身同志の粘着性な
いし密着性が悪くなる。 In the present invention, per 100 parts of polypropylene, at least 2 to 70 parts of polyethylene having a number average molecular weight of 30,000 or less and 500 or more is added to at least one of actactic polypropylene, petroleum resin, and rosin.
The normal heptane extraction residue of the self-adhesive packaging film made by blending the seeds is 95% by weight or less.
It is characterized by the fact that it should be more than 95% by weight, and if the normal heptane extraction residue exceeds 95% by weight, or if the heptane extraction residue is less than 30% by weight, it may become sticky or sticky to ceramic or glass containers. Adhesion, and the adhesion or adhesion of the films themselves to each other deteriorates.
本発明に用いられるノルマルヘプタン抽出残分
が95重量％以下で、30重量％以上のものを得るに
は、ポリプロピレン100部に対し、数平均分子量
が３万以下で500以上のポリエチレン２〜70部、
アタクチツクポリプロピレン、石油樹脂、ロジン
より選択された少なくとも１種を通常１〜70部添
加してなるポリプロピレン樹脂系配合物により得
られる。この場合用いるポリプロピレンおよびポ
リエチレンの種類により添加するアタクチツクポ
リプロピレン、石油樹脂、ロジンの使用量は適宜
変化してもよく、ポリプロピレン樹脂系配合物よ
り得られるフイルムのノルマルヘプタン抽出残分
が95〜30重量になるように適宜調整することがで
きる。 In order to obtain a normal heptane extraction residue used in the present invention of 95% by weight or less and 30% by weight or more, 2 to 70 parts of polyethylene with a number average molecular weight of 30,000 or less and 500 or more per 100 parts of polypropylene. ,
It can be obtained from a polypropylene resin compound usually containing 1 to 70 parts of at least one selected from atactic polypropylene, petroleum resin, and rosin. In this case, the amount of atactic polypropylene, petroleum resin, and rosin added may be changed depending on the type of polypropylene and polyethylene used. It can be adjusted accordingly.
本発明でいうアタクチツクポリプロピレンと
は、プロピレンを重合して結晶性ポリプロピレン
を製造する際に副生する非結晶性のポリプロピレ
ンである。また石油樹脂とは、石油系不飽和炭化
水素を直接原料とした非結晶性樹脂であり、例え
ば、シクロペンタジエンまたは高級オレフイン系
炭化水素を原料とし、硫酸、無水塩化アルミニウ
ム、フツ化ホウ素などを触媒として加熱重合させ
て作られる。ロジンとは、松やにを水蒸気蒸留し
てテルペン油を取り除いた残留物で、軟化点は80
℃附近で、淡黄色ないし褐色のもろい固体であ
る。 Atactic polypropylene as used in the present invention is amorphous polypropylene that is produced as a by-product when producing crystalline polypropylene by polymerizing propylene. Petroleum resins are amorphous resins made directly from petroleum-based unsaturated hydrocarbons, such as cyclopentadiene or higher olefin hydrocarbons, and catalyzed by sulfuric acid, anhydrous aluminum chloride, boron fluoride, etc. It is made by heating and polymerizing. Rosin is the residue obtained by steam distilling pine resin to remove terpene oils, and has a softening point of 80.
It is a pale yellow to brown brittle solid at temperatures around ℃.
本発明において、アタクチツクポリプロピレン
等の添加によつてノルマルヘプタン抽出残分を30
重量％以上、望ましくは60重量％以上とすれば、
電子レンジ適性（電子レンジ中での熱収縮が小さ
く且つ熱溶融や白化現象を起こさない性質のこ
と）をも兼ね備えた自己粘着性包装用フイルムを
得ることができる。 In the present invention, the normal heptane extraction residue is reduced to 30% by adding atactic polypropylene, etc.
If the content is at least 60% by weight, preferably at least 60% by weight,
It is possible to obtain a self-adhesive packaging film that is suitable for microwave ovens (characteristics that have small heat shrinkage in microwave ovens and do not cause thermal melting or whitening phenomena).
本発明のポリプロピレン樹脂系配合物からフイ
ルムを製造するにあたり、一般的添加剤を含有せ
しめてもよい。例えば酸化防止剤、安定剤、アン
チブロツキング剤、帯電防止剤等を含有せしめる
ことは任意である。なお、滑剤については自己粘
着性を損なうため、その使用は好ましくない。 In producing a film from the polypropylene resin formulation of the present invention, conventional additives may be included. For example, it is optional to include antioxidants, stabilizers, antiblocking agents, antistatic agents, and the like. Note that the use of lubricants is not preferred since they impair self-adhesion.
自己粘着性包装用フイルムは、透明性と自己粘
着性が必要とされるためブロツキング現象（フイ
ルムを芯管等に巻いた場合、フイルム同志がくつ
付いて剥れ難くなる現象。）が起こりやすい。 Since self-adhesive packaging films require transparency and self-adhesiveness, blocking occurs easily (a phenomenon in which when films are wrapped around a core tube, the films stick to each other and become difficult to peel off).
本発明において、ブロツキング現象の発生を防
止するため、添加剤として界面活性剤を、本発明
のポリプロピレン樹脂系配合物の製造時またはこ
の原料の製膜の際に含有せしめることが好まし
い。本発明において用いられる界面活性剤として
は下記した化合物群の中から１種又は２種以上選
択される。 In the present invention, in order to prevent the occurrence of the blocking phenomenon, it is preferable to include a surfactant as an additive during the production of the polypropylene resin composition of the present invention or during the film formation of this raw material. The surfactant used in the present invention is selected from one or more of the compounds listed below.
［化合物群］
グリセリン脂肪酸（C8〜C22）エステル、ソル
ビタン脂肪酸（C8〜C22）エステル、プロピレン
グリコール脂肪酸（C8〜C22）エステル、シヨ糖
脂肪酸（C8〜C22）エステル、クエン酸モノ（ジ
又はトリ）ステアリン酸エステル、ペンタエリス
リトール脂肪酸（C8〜C18）エステル、ポリグリ
セリン脂肪酸（C8〜C18）エステル、ポリオキシ
エチレン（20）グリセリン脂肪酸（C12〜C18）エ
ステル、ポリオキシエチレン（20）ソルビタン脂
肪酸（C12〜C18）エステル、ポリエチレングリコ
ール脂肪酸（C8〜C22）エステル、ポリプロピレ
ングリコール脂肪酸（C8〜C18）エステル、ポリ
オキシエチレン（9.5）ドデシルエーテル、ポリ
オキシエチレン（４〜14，30〜50）アルキル
（C4，9，12）フエニルエーテル、Ｎ，Ｎ−ビス（２
−ヒドロキシエチル）脂肪酸（C12〜C18）アミ
ン、脂肪酸（C12〜C18）アミン、脂肪酸（C12〜
C18）とジエタノールアミンによる縮合生成物、
ポリオキシプロピレンポリオキシエチレンブロツ
クポリマー、ポリエチレングリコール（分子量
200〜9500）、ポリプロピレングリコール、
アルキル（C10〜C20）スルホン酸塩（Na，Ｋ，
NH4）、アルキル（C9〜C20）ベンゼンスルホン
酸塩（Na，Ｋ，NH4）、アルキルナフタレンス
ルホン酸塩（Na）、ソジウムジアルキル
（C4.5 [Compound group] Glycerin fatty acid ( C8 - C22 ) ester, sorbitan fatty acid ( C8-C22) ester, propylene glycol fatty acid (C8 - C22 ) ester, sucrose fatty acid ( C8 - C22 ) ester, Citric acid mono(di or tri)stearate, pentaerythritol fatty acid ( C8 - C18 ) ester, polyglycerol fatty acid ( C8 - C18 ) ester, polyoxyethylene (20) glycerol fatty acid ( C12 - C18) ) ester, polyoxyethylene (20) sorbitan fatty acid ( C12 - C18 ) ester, polyethylene glycol fatty acid ( C8 - C22 ) ester, polypropylene glycol fatty acid ( C8 - C18 ) ester, polyoxyethylene (9.5) Dodecyl ether, polyoxyethylene (4-14, 30-50) alkyl ( C4 , 9 , 12 ) phenyl ether, N,N-bis(2
-Hydroxyethyl) fatty acid ( C12 - C18 ) amine, fatty acid ( C12 - C18 ) amine, fatty acid (C12 -C18 )
C 18 ) and diethanolamine condensation product,
Polyoxypropylene polyoxyethylene block polymer, polyethylene glycol (molecular weight
200-9500), polypropylene glycol, alkyl ( C10 - C20 ) sulfonate (Na, K,
NH4 ), alkyl ( C9 - C20 ) benzenesulfonate (Na, K, NH4 ), alkylnaphthalenesulfonate (Na), sodium dialkyl ( C4.5)
Claims (1)
が３万以下で500以上のポリエチレン２〜70部を
含み、かつノルマルヘプタン抽出残分が95重量％
以下で30重量％以上になるようにアタクチツクポ
リプロピレン、石油樹脂及びロジンの少なくとも
１種を配合してなるポリプロピレン樹脂配合物を
製膜してなることを特徴とする自己粘着性包装用
フイルム。 ２ ポリプロピレン樹脂配合物が、ポリプロピレ
ン100部に対し、界面活性剤0.01〜５部を含む特
許請求の範囲第１項記載の自己粘着性包装用フイ
ルム。[Claims] 1. Contains 2 to 70 parts of polyethylene with a number average molecular weight of 30,000 or less and 500 or more based on 100 parts of polypropylene, and has a normal heptane extraction residue of 95% by weight.
A self-adhesive packaging film characterized in that it is formed by forming a polypropylene resin compound containing at least one of atactic polypropylene, petroleum resin, and rosin in an amount of 30% by weight or more. 2. The self-adhesive packaging film according to claim 1, wherein the polypropylene resin blend contains 0.01 to 5 parts of a surfactant per 100 parts of polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14549081A JPS5847041A (en) | 1981-09-17 | 1981-09-17 | Self-adhesive packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14549081A JPS5847041A (en) | 1981-09-17 | 1981-09-17 | Self-adhesive packaging film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5847041A JPS5847041A (en) | 1983-03-18 |
| JPS6363577B2 true JPS6363577B2 (en) | 1988-12-07 |
Family
ID=15386462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14549081A Granted JPS5847041A (en) | 1981-09-17 | 1981-09-17 | Self-adhesive packaging film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5847041A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0373654U (en) * | 1989-11-20 | 1991-07-24 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51103155A (en) * | 1975-03-07 | 1976-09-11 | Mitsubishi Chem Ind | NENCHAKUSEIHORIOREFUIN FUIRUMUNOSEIZOHOHO |
| JPS5227479A (en) * | 1975-08-19 | 1977-03-01 | Asahi Dow Ltd | Adhesion packing films and its method of manufacturing |
| JPS55133439A (en) * | 1979-04-03 | 1980-10-17 | Mitsui Toatsu Chem Inc | Pressure-sensitive wrapping film for packaging use |
-
1981
- 1981-09-17 JP JP14549081A patent/JPS5847041A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51103155A (en) * | 1975-03-07 | 1976-09-11 | Mitsubishi Chem Ind | NENCHAKUSEIHORIOREFUIN FUIRUMUNOSEIZOHOHO |
| JPS5227479A (en) * | 1975-08-19 | 1977-03-01 | Asahi Dow Ltd | Adhesion packing films and its method of manufacturing |
| JPS55133439A (en) * | 1979-04-03 | 1980-10-17 | Mitsui Toatsu Chem Inc | Pressure-sensitive wrapping film for packaging use |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0373654U (en) * | 1989-11-20 | 1991-07-24 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5847041A (en) | 1983-03-18 |
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