JPS63295640A - Oriented polypropylene film - Google Patents
Oriented polypropylene filmInfo
- Publication number
- JPS63295640A JPS63295640A JP12943887A JP12943887A JPS63295640A JP S63295640 A JPS63295640 A JP S63295640A JP 12943887 A JP12943887 A JP 12943887A JP 12943887 A JP12943887 A JP 12943887A JP S63295640 A JPS63295640 A JP S63295640A
- Authority
- JP
- Japan
- Prior art keywords
- film
- resin
- inorganic fine
- fine particles
- 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.)
- Granted
Links
- 239000005026 oriented polypropylene Substances 0.000 title 1
- 239000004743 Polypropylene Substances 0.000 claims abstract description 85
- -1 polypropylene Polymers 0.000 claims abstract description 82
- 229920001155 polypropylene Polymers 0.000 claims abstract description 82
- 229920005989 resin Polymers 0.000 claims abstract description 73
- 239000011347 resin Substances 0.000 claims abstract description 73
- 239000010419 fine particle Substances 0.000 claims abstract description 63
- 239000010410 layer Substances 0.000 claims abstract description 18
- 239000013032 Hydrocarbon resin Substances 0.000 claims abstract description 17
- 229920006270 hydrocarbon resin Polymers 0.000 claims abstract description 17
- 150000003505 terpenes Chemical class 0.000 claims abstract description 10
- 235000007586 terpenes Nutrition 0.000 claims abstract description 10
- 239000003208 petroleum Substances 0.000 claims abstract description 5
- 239000002356 single layer Substances 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 abstract description 7
- 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 abstract description 7
- 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 abstract description 7
- 239000010954 inorganic particle Substances 0.000 abstract 3
- 239000002245 particle Substances 0.000 description 20
- 239000002216 antistatic agent Substances 0.000 description 18
- 239000010457 zeolite Substances 0.000 description 17
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 15
- 229910021536 Zeolite Inorganic materials 0.000 description 14
- 239000000203 mixture Substances 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000002994 raw material Substances 0.000 description 11
- 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 description 9
- 239000002253 acid Substances 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004381 surface treatment Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000003851 corona treatment Methods 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 4
- 208000028659 discharge Diseases 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- MSFGZHUJTJBYFA-UHFFFAOYSA-M sodium dichloroisocyanurate Chemical compound [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O MSFGZHUJTJBYFA-UHFFFAOYSA-M 0.000 description 4
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 3
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 3
- 210000003811 finger Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 description 1
- 238000004438 BET method Methods 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
- 235000019687 Lamb Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Laminated Bodies (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は延伸ポリプロピレンフィルムに関スるもので、
透明性、滑り性、耐ブロッキング性等において優れた性
質を有する延伸ポリプロピレンフィルムを提供するもの
である。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a stretched polypropylene film,
The present invention provides a stretched polypropylene film having excellent properties such as transparency, slipperiness, and blocking resistance.
延伸ポリプロピレンフィルムは、一般に、前記フィルム
中に内填されているブロッキング防止剤や滑剤等のフィ
ルム表面への浮き出しを促進させるだめや接着性向上等
の目的で、コロナ放電処理に付されるのが極く普通であ
る。Stretched polypropylene films are generally subjected to corona discharge treatment for the purpose of promoting the release of anti-blocking agents, lubricants, etc. contained in the film onto the film surface, and improving adhesion. It's extremely normal.
然して、前記コロナ放電処理に付された延伸ポリプロピ
レンフィルムは、その表面が活性化されており、特にコ
ロナ放電処理を受けた直後の延伸ポリプロピレンフィル
ムの表面は滑り特性が低下しているため、この延伸ポリ
プロピレンフィルムが巻き取られる際には皺が発生し易
く、巻き取り外観が低下するばかりでなく、巻き取り物
にはブロッキングが発生し易くなっている等の欠点を有
している。However, the surface of the stretched polypropylene film that has been subjected to the corona discharge treatment is activated, and in particular, the surface of the stretched polypropylene film immediately after the corona discharge treatment has reduced sliding properties. When a polypropylene film is wound up, wrinkles tend to occur, which not only deteriorates the appearance of the rolled film, but also causes problems such as blocking in the rolled product.
また、コロナ放電処理に付されない延伸ポリプロピレン
フィルムの場合でも、内填剤の種類等によっては、ブロ
ッキングが発生し易いという欠点が存する。Further, even in the case of a stretched polypropylene film that is not subjected to corona discharge treatment, there is a drawback that blocking is likely to occur depending on the type of internal filler.
このため、無機質微粒子を内填剤として含有する延伸ポ
リプロピレンフィルムにすることにより、物理的な凹凸
をフィルム表面に形成してフィルム同志の接触面積を下
げるようにすると共にフィルム同志の間に空気が均一に
巻き込まれるようにして、滑シ性やブロッキング防止性
を改善したり、あるいは有機系の滑剤を内填剤とする二
軸延伸ポリプロピレンフィルムとすることにより、滑り
性やブロッキング防止性を改善する等のことが行われて
いる。For this reason, by creating a stretched polypropylene film containing inorganic fine particles as an internal filler, physical irregularities are formed on the film surface to reduce the contact area between the films, and the air is evenly distributed between the films. The lubricity and anti-blocking properties can be improved by making the polypropylene film become entangled in the film, or by forming a biaxially oriented polypropylene film with an organic lubricant as an internal filler. This is what is being done.
ところで、前記無機質微粒子を内填剤とする二軸延伸ポ
リプロピレンフィルムの場合は、無機質微粒子が添加さ
れているポリプロピレン樹脂を製膜原料とするものであ
るから、製膜時の冷却過程で結晶の増核作用が生ずるこ
ととなシ、延伸によって前記無機質微粒子を中心とする
空隙（ボイド）が発生するため、霞度で表示されるフィ
ルムの透明性が低下するという欠点を有する。特に、効
果的な滑シ性やブロッキング防止性能を得るために、前
記無機質微粒子は数μオーダーの粒径のものが使用され
ており、前述のボイドの大きさも無機質微粒子の粒径の
大きさと共に大きくなるため、得られる滑り性やブロッ
キング防止性能の効果に比例してフィルムの透明性が低
下するという宿命を有している。By the way, in the case of the biaxially oriented polypropylene film using the inorganic fine particles as an internal filler, since the polypropylene resin to which the inorganic fine particles have been added is used as a film forming raw material, crystals increase during the cooling process during film forming. In addition to the occurrence of nucleation, voids centering on the inorganic fine particles are generated by stretching, which has the disadvantage that the transparency of the film, which is expressed by the degree of haze, is reduced. In particular, in order to obtain effective lubricity and anti-blocking performance, the inorganic fine particles have a particle size on the order of several microns, and the size of the voids mentioned above is determined by the size of the inorganic fine particles as well as the particle size. As the size increases, the transparency of the film is destined to decrease in proportion to the obtained slipperiness and anti-blocking performance.
また、有機系の滑剤を内填剤とする二軸延伸ポリプロピ
レンフィルムは、内填されている滑剤がフィルム表面に
浮き出して来て、滑り性を向上させると共にブロッキン
グ防止の作用を達成するためには、製膜後ある程度の時
間を必要とするものであるから、その効果の発現が遅く
、実際問題として延伸ポリプロピレンフィルムの製造時
におけるフィルムの巻き取りの際に発生する皺を防止す
る作用は殆んど皆無である。In addition, in biaxially oriented polypropylene films containing organic lubricants as internal fillers, the lubricants contained therein come to the surface of the film, improving slipperiness and preventing blocking. , since it requires a certain amount of time after film formation, its effect is slow to appear, and as a practical matter, it has little effect on preventing wrinkles that occur when the film is wound up during the production of stretched polypropylene film. There are none.
これに対して、本発明は、透明性の低下の要因であるボ
イドの発生が抑制されており、透明性と滑り性と速効性
のある耐ブロッキング性とを兼備する延伸ポリプロピレ
ンフィルムを提供するものである。In contrast, the present invention provides a stretched polypropylene film in which the generation of voids, which is a factor in reducing transparency, is suppressed, and which combines transparency, slipperiness, and fast-acting anti-blocking properties. It is.
本発明の延伸ポリプロピレンフィルムは、テルペン樹脂
１召油樹脂、及びロジンの中から選択される炭化水素系
樹脂による表面処理が予め施されている無機質微粒子を
含有するポリプロピレン系樹脂の単層フィルム、あるい
は前記表面処理が予め施されている無機質微粒子を含有
するポリプロピレン系樹脂層を少なくとも一方の表面層
として具備する複合フィルムであり、前記無機質微粒子
が含有されているポリプロピレン系樹脂層には、該樹脂
層中の樹脂成分１００重量部に対して、前記表面処理が
予め施されている無機質微粒子を、表面処理が施されて
いない無機質微粒子に換算して、すなわち、無機質微粒
子成分として、０．０２〜１重量部の範囲内で含有して
いるもので、しかも、前記表面処理無機質微粒子は、無
機質微粒子の２重量％以上の量の前記炭化水素系樹脂に
よる表面処理が施されているものが使用されるものであ
る。The stretched polypropylene film of the present invention is a monolayer film of a polypropylene resin containing inorganic fine particles that has been surface-treated with a hydrocarbon resin selected from terpene resin, oil resin, and rosin, or It is a composite film comprising, as at least one surface layer, a polypropylene resin layer containing inorganic fine particles that has been subjected to the surface treatment, and the polypropylene resin layer containing the inorganic fine particles has a polypropylene resin layer containing inorganic fine particles. With respect to 100 parts by weight of the resin component inside, the inorganic fine particles that have been previously subjected to the surface treatment are converted into inorganic fine particles that have not been surface treated, that is, the inorganic fine particle component is 0.02 to 1. The surface-treated inorganic fine particles are those that have been surface-treated with the hydrocarbon resin in an amount of 2% or more by weight of the inorganic fine particles. It is something.
前記構成からなる本発明の延伸ポリプロピレンフィルム
において、ポリプロピレン系樹脂として使用される樹脂
は、プロピレンの単独重合体をはじめ、プロピレンと他
のαｅオレフィンとの共重合体、あるいは前記単独重合
体と前記共重合体との混合樹脂等であるが、ポリプロピ
レン系樹脂層には該ポリプロピレン系樹脂層の特性を逸
脱することの無い範囲でその他の樹脂が少量添加されて
いても良いことは勿論である。In the stretched polypropylene film of the present invention having the above structure, the resin used as the polypropylene resin may include a propylene homopolymer, a copolymer of propylene and another αe olefin, or the above homopolymer and the above copolymer. Although it is a mixed resin with a polymer, it goes without saying that a small amount of other resin may be added to the polypropylene resin layer within a range that does not deviate from the characteristics of the polypropylene resin layer.
前記ポリプロピレン系樹脂に対して内填剤として添加さ
れる無機質微粒子は、該無機質微粒子の２重量％以上の
量のテルペン樹脂２右油樹脂、及びロジンの中から選択
される炭化水素樹脂による表面処理が付されたものであ
り、該表面処理に付される無機質微粒子は、例えば、ゼ
オライト、ゼオライトの酸処理物である非晶質珪酸アル
ミニウム定形粒子、酸化マグネ・／ラム。The inorganic fine particles added as an internal filler to the polypropylene resin are surface-treated with a hydrocarbon resin selected from terpene resin, oil resin, and rosin in an amount of 2% by weight or more of the inorganic fine particles. The inorganic fine particles subjected to the surface treatment include, for example, zeolite, amorphous aluminum silicate shaped particles which are acid-treated zeolites, and magne oxide/lamb.
水酸化マグネンウム、水酸化カルシウム、炭酸カルシウ
ム、酸化硅素、ネフエリンサイヤナイト、ドロマイト、
モンモリロナイト、シリカ等の一般的な無機質微粒子で
、通常０．１〜ｌＯμｍ好ましくは１〜５μｍ程度の一
次粒径を有するものが利用され、更には、該微粒子にお
けるアンチブロッキング性能の点で、そのＢＥＴ比表面
積が３００ ｉ／ｆ（ＢＥＴ法）以下の比表面積を有し
ているものが好適である。なかでも、ゼオライト及びゼ
オライトの酸処理物である非晶質珪酸アルミニウム定形
粒子が優れた作用を奏することが確認されており、ゼオ
ライトは天然品１合成品のいずれであっても良いが、粒
子が均一であるという点において合成ゼオライトが好ま
しく、特に、Ａ型、Ｘ型、Ｐ型のゼオライト及び該ゼオ
ライトを使用した非晶質珪酸アルミニウム定形粒子が好
適である。Magnenium hydroxide, calcium hydroxide, calcium carbonate, silicon oxide, nephelin syanite, dolomite,
General inorganic fine particles such as montmorillonite and silica having a primary particle size of usually 0.1 to 10 μm, preferably 1 to 5 μm are used, and in terms of anti-blocking performance of the fine particles, their BET A material having a specific surface area of 300 i/f (BET method) or less is preferable. Among them, it has been confirmed that zeolite and amorphous aluminum silicate shaped particles, which are acid-treated products of zeolite, have excellent effects. Zeolite can be either a natural product or a synthetic product, but if the particles are Synthetic zeolites are preferred in terms of uniformity, and A-type, X-type, and P-type zeolites and amorphous aluminum silicate regular particles using these zeolites are particularly preferred.
テルペン樹脂１旧油樹脂、及びロジンの中から選択され
る炭化水素樹脂による表面処理に付された無機質微粒子
は、前述の無機質微粒子を表面処理用の加熱溶融樹脂中
で処理することによって容易に得られるものである。こ
の表面処理が施されている無機質微粒子は、無機質微粒
子に対して２重量％以上、好ましくは１０重量％以上の
前記炭化水素系樹脂が付着しているものが使用されるが
、これは、前記無機質微粒子における炭化水素系樹脂が
無機質微粒子の２重量％未満の少量の場合には、延伸ポ
リプロピレンフィルムにおけるボイドの発生の抑制作用
が少なく、透明性が低下し易くなるだめである。Inorganic fine particles subjected to surface treatment with a hydrocarbon resin selected from terpene resin 1 old oil resin and rosin can be easily obtained by treating the above-mentioned inorganic fine particles in a heated molten resin for surface treatment. It is something that can be done. The surface-treated inorganic fine particles are those to which 2% by weight or more, preferably 10% by weight or more of the hydrocarbon resin is attached to the inorganic fine particles. If the amount of hydrocarbon resin in the inorganic fine particles is less than 2% by weight of the inorganic fine particles, the effect of suppressing the generation of voids in the stretched polypropylene film will be small, and the transparency will tend to decrease.
尚、前記表面処理が施されている無機質微粒子における
前記炭化水素系樹脂の付着量の上限は特別には存しなく
、この炭化水素系樹脂の存在によって延伸ポリプロピレ
ンフィルムの物性が実質的に変化することのない範囲内
であれば良い。Note that there is no particular upper limit to the amount of the hydrocarbon resin attached to the surface-treated inorganic fine particles, and the presence of the hydrocarbon resin substantially changes the physical properties of the stretched polypropylene film. It's fine as long as it's within a reasonable range.
前記炭化水素系樹脂による表面処理が施されている無機
質微粒子は、ポリプロピレン系樹脂層中の樹脂成分１０
０重量部に対して、表面処理が施されていない無機質微
粒子に換算して、すなわち無機質微粒子成分として、０
．０２〜１重量部の範囲内で使用されるが、これは前記
無機質微粒子成分が０４０２重量部未満では、得られる
ブロッキング防止効果が小さく、また１重１部を超える
と、フィルム表面の凹凸が激しくなるため、これに起因
して透明性が損われるという常置を生ずるためである。The inorganic fine particles surface-treated with the hydrocarbon resin are the resin component 10 in the polypropylene resin layer.
0 parts by weight, converted to inorganic fine particles without surface treatment, that is, as an inorganic fine particle component, 0 parts by weight.
．． If the amount of the inorganic fine particle component is less than 0.02 to 1 part by weight, the anti-blocking effect obtained will be small, and if it exceeds 1 part by weight, the film surface will become severely uneven. This is because transparency is permanently impaired due to this.
尚、本発明の延伸ポリプロピレンフィルムにおいては、
前記炭化水素系樹脂による表面処理が施されている無機
質微粒子のほかに、必要に応じて、例えば帯電防止剤や
滑剤等のその他の内填剤が添加されていても良いことは
勿論である。In addition, in the stretched polypropylene film of the present invention,
It goes without saying that in addition to the inorganic fine particles surface-treated with the hydrocarbon resin, other fillers such as antistatic agents and lubricants may be added as necessary.
以下、本発明の延伸ポリプロピレンフィルムの具体的な
構成を製造実施例を以って説明し、併せ、得られた延伸
ポリプロピレンフィルムの特性について言及する。Hereinafter, the specific structure of the stretched polypropylene film of the present invention will be explained with reference to production examples, and the properties of the stretched polypropylene film obtained will also be mentioned.
実施例１
ゼオライトの酸処理物である非晶質珪酸アルミニウム定
形粒子〔水滓化学工業■製：シルトンＡＭＴ−３０：平
均粒径３μ）１１０重量部とテルペン樹脂〔安原油脂■
製：クリアロンＰ−１０５）９０重量部とを良く混合し
、１３０℃で３０分間の加熱、混合を行なった後、得ら
れた混合物を冷却、固化して、粉砕機にて約１０１１Ｘ
ＩＯ１０１１ＸＩＯ程度の立方体に粉砕し、無機質微粒
子成分濃度１０重量％の表面処理無機質微粒子〔１〕を
得た。Example 1 110 parts by weight of amorphous aluminum silicate shaped particles (manufactured by Suikagaku Kogyo ■: Silton AMT-30: average particle size 3μ), which is an acid-treated product of zeolite, and a terpene resin [cheap crude oil ■]
After heating and mixing at 130°C for 30 minutes, the resulting mixture was cooled and solidified, and milled to about 1011X.
The particles were ground into cubes of approximately IO1011XIO to obtain surface-treated inorganic fine particles [1] having an inorganic fine particle component concentration of 10% by weight.
ポリプロピレン樹脂〔昭和電工■製：ＦＡ−１１２〕に
、前記得られた表面処理無機質微粒子〔１〕と帯電防止
剤〔東邦化学■製：アルキルアミンと脂肪酸モノグリセ
ライドとの混合物〕とを、それぞれ後記第１表に示す量
で添加し、得られた配合組成物を製膜原料とするＴダイ
押出成形による原反フィルムを、更に、縦５倍、横９倍
の延伸処理に付し、しかる後Ｋ ６０ Ｗ／ｄ／分のコ
ロナ放電処理を施し、本発明の実施例品たる延伸ポリプ
ロピレンフィルム（ａ）を得た。The surface-treated inorganic fine particles [1] obtained above and the antistatic agent (mixture of alkylamine and fatty acid monoglyceride, manufactured by Toho Kagaku ■) were added to polypropylene resin (manufactured by Showa Denko ■: FA-112), respectively as described below. The raw film obtained by T-die extrusion molding using the blended composition obtained by adding the amount shown in Table 1 as a film-forming raw material was further subjected to a stretching treatment of 5 times in length and 9 times in width, and then K A corona discharge treatment of 60 W/d/min was performed to obtain a stretched polypropylene film (a) which is an example product of the present invention.
尚、前記帯電防止剤はポリプロピレン樹脂でマスター化
したものであり、このマスター化されている帯電防止剤
に付着しているポリプロビレ／樹脂や、前記表面処理無
機質微粒子における炭化水素系樹脂は、いずれも製膜原
料中の樹脂成分であシ、後記第１表中における無機質微
粒子成分と帯電防止剤との量は、それぞれ全樹脂成分に
対する無機質微粒子成分と帯電防止剤との純分である。The antistatic agent is mastered with polypropylene resin, and the polypropylene/resin attached to the mastered antistatic agent and the hydrocarbon resin in the surface-treated inorganic fine particles are both The amounts of the inorganic fine particle component and antistatic agent in Table 1 below are the pure amounts of the inorganic fine particle component and antistatic agent relative to the total resin component, respectively.
前記得られた延伸ポリプロピレンフィルム（ａ）につい
て、前記延伸ポリプロピレンフィルムの製膜直後の摩擦
係数（ＣＯＦ）とブロッキング性とを、前記フィルムの
コロナ放電処理面×非コロナ放電処理面で評価すると共
に、延伸ポリプロピレンフィルムを２日間、４０℃で熟
成後に、更に、摩擦係数とブロッキング性とを前記と同
様にコロナ放電処理面×非コロナ放電処理面で評価し、
同時に延伸ポリプロピレンフィルムの内部霞度を、フィ
ルムの上、下両表面にシリコーンオイルを塗布した状態
で測定した。結果を第１表に示す。Regarding the obtained stretched polypropylene film (a), the coefficient of friction (COF) and blocking property of the stretched polypropylene film immediately after film formation were evaluated on the corona discharge treated side x non-corona discharge treated side of the film, and After aging the stretched polypropylene film at 40°C for 2 days, the friction coefficient and blocking property were further evaluated on the corona discharge treated side x non-corona discharge treated side in the same manner as above,
At the same time, the internal haze of the stretched polypropylene film was measured with silicone oil applied to both the upper and lower surfaces of the film. The results are shown in Table 1.
尚、摩擦係数、ブロッキング性、霞度の評価方法は以下
の通りである。In addition, the evaluation method of friction coefficient, blocking property, and degree of haze is as follows.
ＡＳＴＭ Ｄ−１８９４（ｃ）に基いて、東洋ボールド
ウィン■製［テン７０ンＵＭ−２Ｊを使用して測定した
。Based on ASTM D-1894(c), measurements were made using Toyo Baldwin's Ten70mm UM-2J.
２枚のフィルムの面同士を重ね合わせてその上方に２０
０ ｙ７＝の荷重をかけた状態で４０’Ｃ。Lay the sides of the two films together and place 20
40'C with a load of 0 y7= applied.
７０ ％ ＲＨで２４時間放置した後、試料を親指と人
差し指及び中指との間に挾み、指をずらせた際の前記試
料のはがれ具合によって、２枚のフィルムが抵抗熱くは
がれるものを１級、前記方法ではがれないものを強引な
操作によって引き剥した後のフィルム同志のすべり性の
悪いものを５級とし、官能評価で１級〜５級の５段階に
て評価した。After being left at 70% RH for 24 hours, the sample was held between the thumb, index finger, and middle finger, and the degree of peeling of the sample when the fingers were moved was determined as Grade 1 if the two films peeled off due to resistance. Films that could not be peeled off by the above method were rated as 5th grade if they had poor slipperiness after being peeled off by forceful operation, and sensory evaluation was performed on a 5-level scale from 1st grade to 5th grade.
霞度
ＪＩＳ Ｋ−６７１４に基いて、日本電色■製「オート
マチックデジタルへイズメーターＮＤＨ−２０Ｄ」によ
シ測定した。Haze was measured based on JIS K-6714 using an "Automatic Digital Haze Meter NDH-20D" manufactured by Nippon Denshoku ■.
実施例２〜４
第１表中の所定欄に示される表面処理されている無機質
微粒子と、前記実施例１で使用したものと同一のポリプ
ロピレン樹脂と、同じく前記実施例１で使用したものと
同一の帯電防止剤との製膜原料を、それぞれ、前記実施
例ＩＫおける原反フィルムの製造条件とフィルムの延伸
条件と同じ処方に付して、本発明の実施例品たる延伸ポ
リプロピレンフィルム（ｂ） 、 （ｃ） 、 （ｄ）
を得た。Examples 2 to 4 Surface-treated inorganic fine particles shown in the specified columns in Table 1, the same polypropylene resin as used in Example 1, and the same polypropylene resin as used in Example 1 A stretched polypropylene film (b), which is an example product of the present invention, was prepared by subjecting the film-forming raw materials with the antistatic agent to the same formulation as the raw film manufacturing conditions and film stretching conditions in Example IK above. , (c), (d)
I got it.
尚、前記実施例２〜４で使用した表面処理無機質微粒子
〔１１〕〜（ｉＶ）は以下に説明する通りのものである
。The surface-treated inorganic fine particles [11] to (iV) used in Examples 2 to 4 are as described below.
ゼオライトの酸処理物である非晶質珪酸アルミニウム定
形粒子〔水滓化学■製：シルトンＡＭＴ−３０：平均粒
径３μ〕８０重量部と石油樹脂〔理化・・−キュレス−
製：リガレツツ１１２６）２０重量部との加熱溶融混合
物を冷却後、１０騙立方程度に粉砕したもの。80 parts by weight of amorphous aluminum silicate regular particles (manufactured by Suikagaku Kagaku: Silton AMT-30: average particle size 3μ), which is an acid-treated product of zeolite, and petroleum resin [Rika...-Cures-]
A heated molten mixture with 20 parts by weight of Rigaretstu 1126) was cooled and then ground into about 10 cubic pieces.
微粉末ノリ力〔富士デビソン■製：サイロイド＃２２４
）２０重量部と水添ロジン〔理化）・−キュレス■製：
フオーラルＡＸ）８０重量部との加熱溶融混合物を冷却
後、１０１１１立方程度に粉砕したもの。Fine powder glue [manufactured by Fuji Davison: Thyroid #224]
) 20 parts by weight and hydrogenated rosin [Rika] - made by Cures ■:
After cooling, a heated molten mixture with 80 parts by weight of Foral AX) was ground into approximately 10111 cubic pieces.
軽質炭酸カルシウム微粉末〔三共精粉■製：エスカロン
１５００ ） ５０ 重１に部（！： ｆ ｋへ７’樹
脂〔安原油脂■製：クリアロンＰ−１０５）５０重量部
との加熱溶融混合物を冷却後、１０龍立方程度に粉砕し
たもの。Cool the heated and molten mixture with 50 parts by weight of light calcium carbonate fine powder (manufactured by Sankyo Seifun ■: Escalon 1500) (!: f k to 7' resin [manufactured by Cheap Oil ■: Clearon P-105) 50 parts by weight. Afterwards, it was crushed into pieces of about 10 cubic cubes.
比較例１〜４
第１表中の所定欄に表示されている比較のだめの表面処
理無機質微粒子ＣＩ ） 、 （ｎ） 、 （ＩＩＩ）
。Comparative Examples 1 to 4 Comparative surface-treated inorganic fine particles CI), (n), (III) shown in the specified columns in Table 1
.
（ＩＶ）と、前記実施例１で利用した帯電防止剤と同じ
帯電防止剤と、前記実施例１で使用したものと同一のポ
リプロピレン樹脂との製膜原料を、それぞれ、前記実施
例１における原反フィルムの製造条件及びフィルムの延
伸条件と同じ処方に付して、比較のための延伸ポリプロ
ピレンフィルム（Ａ）、ＣＢ）、ＣＣ）、ＣＤ）を得た
。(IV), the same antistatic agent as that used in Example 1, and the same polypropylene resin as that used in Example 1, respectively. Stretched polypropylene films (A), CB), CC), and CD) for comparison were obtained under the same formulation as the production conditions of the anti-film and the stretching conditions of the film.
尚、前記比較例１〜４で使用した表面処理無機質微粒子
ＣＩ）〜〔■〕は以下に説明する通りのものである。The surface-treated inorganic fine particles CI) to [■] used in Comparative Examples 1 to 4 are as described below.
ゼオライトの酸処理物である非晶質珪酸アルミニウム定
形粒子〔水滓化学■製：シルトンＡＭＴ−３０：平均粒
径３μ〕１０重景部とポリプロピレン樹脂９０重量部と
の加熱溶融混合物を冷却後ＩＱ＋ｎ立方程度に粉砕した
もの。Amorphous aluminum silicate shaped particles which are acid-treated zeolite [manufactured by Suiko Kagaku ■: Silton AMT-30: average particle size 3 μ] After cooling a heated molten mixture of 10 parts by weight and 90 parts by weight of polypropylene resin, IQ+n Pulverized into cubes.
ゼオライトの酸処理物である非晶質珪酸アルミニウム定
形粒子〔水滓化学■製：シルトンＡＭＴ−３０＋平均粒
径３μ〕９９重量部を加熱溶融されている石油樹脂〔理
化）・−キュレス−製：リガレツツ１１２６）１重量部
の中でまぶして冷却したもの。Petroleum resin [Rika] - Cures - made by heating and melting 99 parts by weight of amorphous aluminum silicate regular particles (manufactured by Suikagaku Kagaku ■: Silton AMT-30 + average particle size 3μ), which is an acid-treated product of zeolite: Regaretsu 1126) 1 part by weight sprinkled and cooled.
微粉末シリカ〔富士デビンン■製：サイロイド”２２４
）２０重量部とポリプロピレン樹脂８０重量部との加熱
溶融混合物を冷却後、１０朋立方程度に粉砕したもの。Fine powder silica [manufactured by Fuji Devin ■: Cyroid” 224
) 20 parts by weight of polypropylene resin and 80 parts by weight of polypropylene resin, which was cooled and then ground to about 10 mm cubes.
軽質炭酸カルシウム微粉末〔三共精粉■製：エス力ロン
１５００）５０重量部とポリプロピレン樹脂５０重量部
との加熱溶融混合物を冷却後％１０ｍ１１立方程度に粉
砕したもの。A heated and molten mixture of 50 parts by weight of light calcium carbonate fine powder (manufactured by Sankyo Seifun ■: Esrikron 1500) and 50 parts by weight of polypropylene resin was cooled and pulverized to about 10 ml and 11 cubic centimeters.
比較例５
前記実施例１で使用したものと同じ帯電防止剤と同じく
前記実施例１で使用したものと同じポリプロピレン樹脂
との混合物を、前記実施例１における原反フィルムの製
造条件とフィルムの延伸条件と同じ処方に付して、比較
のだめの延伸ポリプロピレンフィルム〔Ｅ〕を得た。Comparative Example 5 A mixture of the same antistatic agent as used in Example 1 and the same polypropylene resin as used in Example 1 was prepared under the manufacturing conditions of the original film and the stretching of the film in Example 1. A comparative stretched polypropylene film [E] was obtained under the same conditions and formulation.
実施例５
エチレン成分４〜７重量モルチを含むエチレン・プロピ
レン共重合体と、実施例１で使用したものと同じ帯電防
止剤と、第１表中の所定欄に表示されている表面処理無
機質微粒子（Ｖ）とからなる製膜原料を、前記実施例１
における原反フィルムの製造条件とフィルムの延伸条件
と同じ処方に処して、本発明の実施例品たる延伸ポリプ
ロピレンフィルム〔ｅ〕を得た。Example 5 An ethylene-propylene copolymer containing 4 to 7 moles of ethylene component, the same antistatic agent as used in Example 1, and surface-treated inorganic fine particles shown in the specified column of Table 1. (V) The film-forming raw material consisting of
A stretched polypropylene film [e], which is an example product of the present invention, was obtained by subjecting it to the same recipe as the original film manufacturing conditions and film stretching conditions in .
尚、前記表面処理無機質微粒子〔ｖ〕は、ゼオライトの
酸処理物である非晶質珪酸アルミニウム定形粒子〔水滓
化学■製：シルトンＡＭＴ−３０）７０重量部を、加熱
溶融されているテルペン樹脂〔安原油脂■製：クリアロ
ンＰ−１２５３３０重量部中にて良く混合し、冷却後に
１０ｎ立方程度に粉砕したものである。The surface-treated inorganic fine particles [v] are made by adding 70 parts by weight of amorphous aluminum silicate shaped particles (Silton AMT-30, manufactured by Suikagaku), which is an acid-treated product of zeolite, to a terpene resin that has been heated and melted. [Manufactured by Cheap Crude Oil ■: Clearon P-125, 330 parts by weight was mixed well, and after cooling, it was pulverized into about 10 nm cubes.
比較例６
第１表中の所定欄に表示されている比較のだめの表面処
理無機質微粒子（Ｖ）と、前記実施例１で利用した帯電
防止剤と同じ帯電防止剤と、前記実施例６で使用したも
のと同一のエチレン・プロピレン共重合体とからなる製
膜原料を、前記実施例１における延伸ポリプロピレンフ
ィルムの製造条件と同一条件に付して、比較のだめの延
伸ポリプロピレンフィルム（Ｆ）を得た。Comparative Example 6 Comparative surface-treated inorganic fine particles (V) shown in the specified column in Table 1, the same antistatic agent as the antistatic agent used in Example 1, and the same antistatic agent used in Example 6 A film-forming raw material consisting of the same ethylene-propylene copolymer as that used in Example 1 was subjected to the same manufacturing conditions as the stretched polypropylene film in Example 1 to obtain a comparative stretched polypropylene film (F). .
尚、前記表面処理無機質微粒子（Ｖ）は、ゼオライトの
酸処理物である非晶質珪酸アルミニウム定形粒子〔水滓
化学■製：シルトンＡＭＴ−３０）７０重量部を、加熱
溶融されているポリプロピレン樹脂３０重量部中にて良
く混合し、冷却後にｌ□ｙ＋ｍ立方程度に粉砕したもの
である。The surface-treated inorganic fine particles (V) are a polypropylene resin in which 70 parts by weight of amorphous aluminum silicate regular particles (Silton AMT-30 manufactured by Suikagaku), which is an acid-treated zeolite, are heated and melted. The mixture was thoroughly mixed in 30 parts by weight, cooled, and then ground to about l□y+m cubes.
比較例７
前記実施例１で使用したものと同じ帯電防止剤と同じく
前記実施例６で使用したものと同一のエチレン・プロピ
レン共重合体とからなる製膜原料を、前記実施例１にお
ける延伸ポリプロピレンフィルムの製造条件と同一条件
に付して、比較のための延伸ポリプロピレンフィルムＣ
Ｇ）を得た。Comparative Example 7 A film-forming raw material consisting of the same antistatic agent as used in Example 1 and the same ethylene-propylene copolymer as used in Example 6 was used to produce the stretched polypropylene in Example 1. Stretched polypropylene film C for comparison was subjected to the same conditions as the film manufacturing conditions.
G) was obtained.
実施例６
４Ａ型ゼオライト粉末〔水滓化学工業■製：シルトンＭ
：平均粒径２．３μ〕７０重量部を、加熱溶融されてい
るテルペン樹脂〔安原油脂■製クリアロンＰ−１２５）
３０重量部に良く混合し、冷却後１ｆｌ以下に粉砕する
ことにより、無機質微粒子成分濃度７０重量％の表面処
理ゼオライトからなる表面処理無機質微粒子〔ｖ１〕を
得た。Example 6 4A type zeolite powder [manufactured by Suikagaku Kagaku Kogyo ■: Silton M
: average particle size 2.3 μ] 70 parts by weight of heated and melted terpene resin [Clearon P-125 manufactured by Cheap Oil & Co., Ltd.]
By thoroughly mixing 30 parts by weight, cooling, and pulverizing to 1 fl or less, surface-treated inorganic fine particles [v1] made of surface-treated zeolite with an inorganic fine particle component concentration of 70% by weight were obtained.
前記得られた表面処理無機質微粒子〔ｖ１〕と、前記実
施例１で使用したものと同一のポリプロピレン樹脂と、
同じく前記実施例１で使用したものと同一の帯電防止剤
との製膜原料を、前記実施例１における原反フィルムの
製造条件とフィルムの延伸条件とそれぞれ同じ処方に付
して、本発明の実施例品たる延伸ポリプロピレンフィル
ム（ｆ）を得た。The obtained surface-treated inorganic fine particles [v1], the same polypropylene resin as that used in Example 1,
Similarly, the film-forming raw material containing the same antistatic agent as that used in Example 1 was subjected to the same formulation as the original film manufacturing conditions and film stretching conditions in Example 1, respectively, to obtain the film forming material of the present invention. A stretched polypropylene film (f) as an example product was obtained.
比較例８
前述の４Ａ型ゼオライト粉末〔水滓化学工業■製：シル
トンＭ：平均粒径２．３μ〕からなる無機質微粒子（Ｖ
Ｉ）と、前記実施例１で使用したものと同一のポリプロ
ピレン樹脂と、同じく前記実施例１で使用１−だものと
同一の帯電防止剤との製膜原料を、前記実施例１におけ
る原反フィルムの製造条件とフィルムの延伸条件とそれ
ぞれ同じ処方に付して、比較のための延伸ポリプロピレ
ンフィルム（Ｈ）ｌ！だ。Comparative Example 8 Inorganic fine particles (V
I), the same polypropylene resin as that used in Example 1, and the same antistatic agent as used in Example 1 above were used as film forming raw materials for the original film in Example 1. A stretched polypropylene film (H) l! for comparison was subjected to the same film manufacturing conditions and film stretching conditions, respectively. is.
実施例７
５Ａ型ゼオライト粉末〔水滓化学工業■製：シルトンＥ
Ｐ：平均粒径２．８μ〕７０重量部を、加熱溶融されて
いるテルペン樹脂〔安原油脂■製クリアロンＰ−１２５
）３０重量部に良く混合し、冷却後１ ＋＋ｓ＋以下に
粉砕することにより無機質微粒子成分濃度７０重量％の
表面処理ゼオライトからなる表面処理無機質微粒子（Ｖ
ｉ＋ ）を得た。Example 7 5A type zeolite powder [manufactured by Suikagaku Kagaku Kogyo ■: Silton E
P: average particle size 2.8 μ] 70 parts by weight of terpene resin [Clearon P-125 manufactured by Cheap Crude Oil ■] heated and melted
) 30 parts by weight, cooled and pulverized to less than 1 ++ s+ to obtain surface-treated inorganic fine particles (V
i+) was obtained.
前記得られた表面処理無機質微粒子（ｖｉｉ ）と、前
記実施例１で使用したものと同一のポリプロピレン樹脂
と、同じく前記実施例１で使用したものと同一の帯電防
止剤との製膜原料を、前記実施例１における原反フィル
ムの製造条件とフィルムの延伸条件とそれぞれ同じ処方
に付して、本発明の実施例品たる延伸ポリプロピレンフ
ィルム〔ｇ〕を得た。Film-forming raw materials of the obtained surface-treated inorganic fine particles (vii), the same polypropylene resin as used in Example 1, and the same antistatic agent as used in Example 1, A stretched polypropylene film [g], which is an example product of the present invention, was obtained by subjecting it to the same recipe as the original film manufacturing conditions and film stretching conditions in Example 1.
比較例９
前述の５Ａ型ゼオライト粉末〔水滓化学工業■製：シル
トンＥＰ：平均粒径２．８μ〕からなる無機質微粒子〔
■〕と、前記実施例１で使用したものと同一のポリプロ
ピレン樹脂と、同じく前記実施例１で使用したものと同
一の帯電防止剤との製膜原料を、前記実施例１における
原反フィルム製造条件とフィルムの延伸条件とそれぞれ
同じ処方に付して、比較のだめの延伸ポリプロピレンフ
ィルムＣＪ）１４１゜
前記各実施例及び比較例で得られた各延伸ポリプロビレ
／フィルムの摩擦係数、プロツキ７グ性、及び霞度をま
とめて第１表（その１）（その２）で示す。Comparative Example 9 Inorganic fine particles made of the above-mentioned 5A type zeolite powder [manufactured by Suiko Kagaku Kogyo ■: Silton EP: average particle size 2.8μ]
(2)], the same polypropylene resin as that used in Example 1, and the same antistatic agent as that used in Example 1, were used to produce the raw film in Example 1. Subjected to the same conditions and film stretching conditions, respectively, a comparative stretched polypropylene film (CJ) 141° friction coefficient, plotting property, and the degree of haze are summarized in Table 1 (Part 1) (Part 2).
本発明の延伸ポリプロピレンフィルムは、ポリプロピン
系樹脂による単層延伸フィルム、あるいは少なくとも一
方の表面層がポリプロピレン系樹脂層で構成されている
複合延伸フィルムからなるもので、前記単層延伸フィル
ムにおいては該フィルム層が、また、前記複合延伸フィ
ルムにおいては該複合延伸フィルムにおける前記表面層
を構成しているポリプロピレン系樹脂層が、無機質微粒
子の２重量−以上のテルペン樹脂１石油樹脂、及びロジ
ンの中から選択される炭化水素系樹脂による表面処理が
付されている表面処理無機質微粒子を、前記ポリプロピ
レン系樹脂層における樹脂成分１００重量部に対して、
無機質微粒子成分で０．０２〜１重量部の割合で含有し
ているものである。The stretched polypropylene film of the present invention is a single-layer stretched film made of a polypropylene resin, or a composite stretched film in which at least one surface layer is composed of a polypropylene resin layer. In the composite stretched film, the polypropylene resin layer constituting the surface layer of the composite stretched film is a terpene resin containing at least 2 weight of inorganic fine particles, selected from petroleum resin, and rosin. Surface-treated inorganic fine particles that have been surface-treated with a hydrocarbon resin are added to 100 parts by weight of the resin component in the polypropylene resin layer.
It is an inorganic fine particle component and is contained in a proportion of 0.02 to 1 part by weight.
従って、前記構成から成る本発明の延伸ポリプロビレ／
フィルムにおいては、ポリプロピレン系樹脂層中におけ
る無機質微粒子が、該無機質微粒子とポリプロピレン系
樹脂との両者に対して親和性を有するテルペン樹脂１召
油樹脂。Therefore, the stretched polypropylene of the present invention having the above structure/
In the film, the inorganic fine particles in the polypropylene resin layer have an affinity for both the inorganic fine particles and the polypropylene resin.
及びロジンの中から選択される炭化水素系樹脂を介して
存在する状態となっている、すなわち、接着性かつ低分
子量の前記炭化水素系樹脂がポリプロピレン系樹脂と無
機質微粒子との間の非親和性を緩衝する作用を果してい
るので、延伸ポリプロピレンフィルムを得る工程で前記
無機質微粒子に起因するボイドの発生が極めて効率良く
抑制されることとなシ、透明性において優れた性質を有
するばかシでなく、延伸フィルムの製造直後においても
優れた耐ブロッキング性を発揮するフィルムとなるもの
である。In other words, the adhesive and low molecular weight hydrocarbon resin exists through a hydrocarbon resin selected from polypropylene resin and rosin. As a result, the generation of voids caused by the inorganic fine particles is extremely efficiently suppressed in the process of obtaining a stretched polypropylene film. The stretched film exhibits excellent anti-blocking properties even immediately after production.
また、本発明の延伸ポリプロピレンフィルムは、該フィ
ルムにおけるポリプロピレン系樹脂層に発生しているボ
イドが極めて少ないため、このフィルムの廃品を別の新
しいフィルムや合成樹脂成形体の原料として利用する場
合に、その内層に前記廃品による原料を使用することが
何ら差支え無〈実施し得るという作用、効果を特徴するIn addition, since the stretched polypropylene film of the present invention has extremely few voids generated in the polypropylene resin layer of the film, when the waste product of this film is used as a raw material for another new film or synthetic resin molded article, There is no problem in using the raw materials from the above-mentioned waste products for the inner layer.
Claims (1)
少なくとも一方の表面層がポリプロピレン系樹脂層で構
成されている複合延伸フィルムにおいて、前記ポリプロ
ピレン系樹脂層には、無機質微粒子の２重量％以上のテ
ルペン樹脂、石油樹脂、及びロジンの中から選択される
炭化水素系樹脂による表面処理が付されている表面処理
無機質微粒子が、前記ポリプロピレン系樹脂層における
樹脂成分１００重量部に対して無機質微粒子成分で０．
０２〜１重量部の割合で含有されていることを特徴とす
る延伸ポリプロピレンフィルム。In a single-layer stretched film made of a polypropylene resin or a composite stretched film in which at least one surface layer is composed of a polypropylene resin layer, the polypropylene resin layer contains a terpene resin or a petroleum resin containing 2% or more by weight of the inorganic fine particles. The surface-treated inorganic fine particles that have been surface-treated with a hydrocarbon resin selected from resins and rosins are used in an amount of 0.00 parts by weight of the inorganic fine particles relative to 100 parts by weight of the resin component in the polypropylene resin layer.
A stretched polypropylene film characterized in that it contains 02 to 1 part by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12943887A JPH0757817B2 (en) | 1987-05-26 | 1987-05-26 | Stretched polypropylene film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12943887A JPH0757817B2 (en) | 1987-05-26 | 1987-05-26 | Stretched polypropylene film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63295640A true JPS63295640A (en) | 1988-12-02 |
| JPH0757817B2 JPH0757817B2 (en) | 1995-06-21 |
Family
ID=15009471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12943887A Expired - Fee Related JPH0757817B2 (en) | 1987-05-26 | 1987-05-26 | Stretched polypropylene film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0757817B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002309125A (en) * | 2001-04-17 | 2002-10-23 | Maruo Calcium Co Ltd | Inorganic filler for regulating curing characteristics and resin composition formed by blending the same |
-
1987
- 1987-05-26 JP JP12943887A patent/JPH0757817B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002309125A (en) * | 2001-04-17 | 2002-10-23 | Maruo Calcium Co Ltd | Inorganic filler for regulating curing characteristics and resin composition formed by blending the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0757817B2 (en) | 1995-06-21 |
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| LAPS | Cancellation because of no payment of annual fees |