JPS6030705B2 - Shrink wrapping film - Google Patents
Shrink wrapping filmInfo
- Publication number
- JPS6030705B2 JPS6030705B2 JP10589082A JP10589082A JPS6030705B2 JP S6030705 B2 JPS6030705 B2 JP S6030705B2 JP 10589082 A JP10589082 A JP 10589082A JP 10589082 A JP10589082 A JP 10589082A JP S6030705 B2 JPS6030705 B2 JP S6030705B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- weight
- present
- styrene
- polystyrene
- 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
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 14
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 12
- 239000004793 Polystyrene Substances 0.000 claims description 10
- 229920002223 polystyrene Polymers 0.000 claims description 10
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 description 11
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- -1 polypropylene Polymers 0.000 description 5
- 231100000252 nontoxic Toxicity 0.000 description 4
- 230000003000 nontoxic effect Effects 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000002216 antistatic agent Substances 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- KDKYADYSIPSCCQ-UHFFFAOYSA-N but-1-yne Chemical compound CCC#C KDKYADYSIPSCCQ-UHFFFAOYSA-N 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 206010011224 Cough Diseases 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
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- FTQWRYSLUYAIRQ-UHFFFAOYSA-N n-[(octadecanoylamino)methyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCNC(=O)CCCCCCCCCCCCCCCCC FTQWRYSLUYAIRQ-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
- B29K2009/06—SB polymers, i.e. butadiene-styrene polymers
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Wrappers (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Description
【発明の詳細な説明】
本発明は腰があり、すべり性の良好で機械包装適性の優
れた延伸されてなる収縮包装用フィルムに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stretched shrink wrapping film that is stiff, has good slip properties, and has excellent mechanical packaging suitability.
従釆各種物品に対する収縮包装用の所謂収縮包装用フィ
ルムとしては、、ポリ塩化ビニル系のものが使われてい
たが、最近その溝性が問題となり、更には透明性に劣り
、腰が弱くすべりが思いので機械包装適性もやや劣ると
いう欠点を指摘されるに至った。Polyvinyl chloride-based films have been used as so-called shrink-wrapping films for shrink-wrapping various articles, but recently their grooves have become a problem, and they are also poor in transparency, weak, and slippery. As a result, it has been pointed out that the product is somewhat less suitable for mechanical packaging.
そのためポリ塩化ビニル系のものに代る無毒性の収縮包
装用フィルムとして、ポリプロピレン系のものが使われ
るようになってきたが、このものは、表面にァバタが残
り外観が悪くなる上に収縮させるために高温が必要であ
り、かつ収縮可能な温度範囲も狭いため作業性が劣り、
収縮温度管理面でトラブルが発生しやすい等の欠点があ
った。そこでこれらの欠点を改良すべくポリプロピレン
系の樹脂に、、更にブチン等適宜の樹脂を配合したもの
と考えられているが、これらのものはポリプロピレン系
樹脂単独のために起る欠点は改良されるにしても、一方
ではブロッキング性が起きたり、腰が弱くなる等の欠点
が生じ、実用的でなかった。本発明者らは、これらの欠
点を改良すべ〈鋭意研究の結果、腰があり、すべり性が
良好で機械包装適正が優れ、かつ無毒性で透明性も優れ
、ブロッキング現象等の生じない新たな収縮包装用フィ
ルムの開発に成功したものであり、その特徴とするとこ
ろは、スチレン含量６５〜９０％、ブタジェン含量１０
〜３５％のスチレン・ブタジェンブロツク共重合体５０
〜※重量％と、熱変形温度が９０ｏｏ以上のポリスチレ
ン５０〜２重量％とを含有し、かつ絹１軸に延伸されて
なる点にある。For this reason, polypropylene-based films have come to be used as non-toxic shrink wrapping films in place of polyvinyl chloride-based films, but this film leaves avatars on the surface, resulting in poor appearance and shrinkage. This requires high temperatures and the shrinkable temperature range is narrow, resulting in poor workability.
There were drawbacks such as troubles easily occurring in terms of shrinkage temperature control. Therefore, in order to improve these drawbacks, it is thought that appropriate resins such as butyne are further blended with polypropylene resin, but these products can improve the drawbacks caused by polypropylene resin alone. However, on the other hand, there were drawbacks such as blocking properties and weakening of the waist, making it impractical. The present inventors aimed to improve these shortcomings.As a result of intensive research, we have developed a new product that is firm, has good slip properties, is suitable for mechanical packaging, is non-toxic, has excellent transparency, and does not cause blocking phenomena. We have successfully developed a film for shrink packaging, and its features include a styrene content of 65-90% and a butadiene content of 10%.
~35% styrene-butadiene block copolymer 50
~*% by weight and 50 to 2% by weight of polystyrene having a heat deformation temperature of 90 oo or higher, and is uniaxially stretched silk.
以下本発明について詳述する。The present invention will be explained in detail below.
本発明において、スチレン含量６５〜９０％、プタジェ
ン舎量１０〜３５％のスチレン・ブタジェンブロツク共
重合体とは、Ｍ．１（メルトインデツクス）が１．０〜
１０．咳庁ましくは１．０〜２．０の範囲にあるもので
あり、またポリスチレンとは一般的な樹脂で、耐熱性グ
レードで熱変形温度（ＪＩＳＫ−６８７１号の試験法に
よる）が９０℃以上の耐熱性のものであることが必要で
あり、このさし、、好ましくは舵〜９５℃の範囲にある
ものが好適な結果をもたらす。In the present invention, the styrene-butadiene block copolymer having a styrene content of 65 to 90% and a butadiene content of 10 to 35% is M. 1 (melt index) is 1.0~
10. The cough temperature is preferably in the range of 1.0 to 2.0, and polystyrene is a general resin that is heat resistant grade and has a heat distortion temperature of 90°C (according to the test method of JISK-6871). It is necessary to have the above heat resistance, and preferably one in the range of 95° C. to the rudder will give suitable results.
本発明は上記のようなスチレン含量６５〜９０％、ブタ
ジェン含量１０〜３５％のスチレン・ブタジェンブロッ
ク共重合体５０〜９頚重量％と、特定のポリスチレン５
０〜２重量％を配合した樹脂を使用するのであり、その
理由は次の通りである。例えばスチレン含量６５〜９０
％、ブタジェン含量１０〜３５％のスチレン・ブタジエ
ンプロツク共重合体単独によるフィルムは、その腰が弱
く、包装作業性や収縮作業性が悪く、またポリスチレン
単独によるものはフィルムの耐衝撃性がなく破損しやす
いという欠点がある。これに対し、本発明では上記特定
の該重合体と、特定ポリスチレンの各特定重量％を配合
したもので、これら単独による前記欠点を解消した。The present invention uses a styrene/butadiene block copolymer having a styrene content of 65 to 90% and a butadiene content of 10 to 35% as described above, and a specific polystyrene 5% by weight.
A resin containing 0 to 2% by weight is used, and the reason is as follows. For example, styrene content 65-90
%, a film made solely of styrene-butadiene block copolymer with a butadiene content of 10 to 35% is weak and has poor packaging workability and shrinkage workability, and a film made only of polystyrene lacks impact resistance. It has the disadvantage of being easily damaged. On the other hand, in the present invention, the above-mentioned specific polymer and specific polystyrene are blended in specific weight percentages, thereby eliminating the drawbacks caused by these alone.
そして本発明では前記該共重合体５０〜９８重量％と、
ポリスチレン５０〜２重量％とを含むよう限定したのは
、該共重合体５の重量％以下、ポリスチレン５の重量％
以下では、フィルムの耐衝撃性が劣り、破損や亀裂が生
じやすくて実用的でなく、逆に該共重合体９種浬％以上
、ポリスチレン２重量％下では腰が弱くなり、包装作業
性や収縮作業性が悪くなり、かつ包装物品のかさ高性や
シャリ感等が不足し広範な用途が期待できないからであ
る。本発明は上記の樹脂を使用するのであるが、フィル
ムに高度のすべり性が要求される場合は、周知の滑剤を
配合することもある。In the present invention, 50 to 98% by weight of the copolymer,
50 to 2% by weight of polystyrene is limited to less than the weight% of the copolymer 5, and 50 to 2% by weight of the polystyrene 5.
If the film contains less than 9% by weight of the copolymer and less than 2% by weight of polystyrene, the film will have poor impact resistance and be easily damaged or cracked, making it impractical. This is because the shrinkage workability is poor and the packaged articles lack bulk and crispness, making it difficult to expect a wide range of uses. Although the above-mentioned resin is used in the present invention, if the film is required to have a high degree of slipperiness, a well-known lubricant may be added.
この際滑剤としてエチレンビスアマィド、脂肪酸アマイ
ド等を例示できる。更に必要に応じ帯電防止剤を配合す
ることもあり、この際帯電防止剤として、グリセリン脂
肪酸ェステル、ソルビタン脂肪酸ェステル等の周知のも
のを例示できる。以上の如き組成からなる配合物より本
発明のフィルムを製造するには、従来の熱可塑性樹脂か
らフィルムを製造する技術が使用され、例えば配合物を
押出機にかけてＴダイスや環状ダイス等により押出し、
しかる後用途に応じて緯１軸に延伸される。Examples of the lubricant include ethylene bisamide and fatty acid amide. Furthermore, an antistatic agent may be added if necessary, and examples of the antistatic agent include well-known ones such as glycerin fatty acid ester and sorbitan fatty acid ester. In order to produce the film of the present invention from a compound having the composition as described above, a conventional technique for producing a film from a thermoplastic resin is used.
Thereafter, it is stretched along one axis in the weft direction depending on the intended use.
第１図は本発明に係るフィルムを食品容器の閉口被覆体
として用いたもので、１は食品容器、２はフィルムによ
る被覆体、３はシール部分を示す。FIG. 1 shows the film according to the present invention used as a closing cover for a food container, where 1 shows the food container, 2 shows the film covering, and 3 shows the sealing part.
第２図は本発明に係るフィルムを瓶のラベル包装に用い
たもので、４は瓶、５はフィルムによるラベルを示して
おり、上記第１図、第２図のいずれのフィルムも鏡１軸
に延伸されているものが使用されている。なお包装され
る物品は、上記容器や瓶に限定されず、あるゆる種類、
用途のものを包装することは勿論である。次に本発明の
実施例を示す。Fig. 2 shows the film according to the present invention used for bottle label packaging, where 4 indicates a bottle and 5 indicates a film label. The one that has been stretched is used. The items to be packaged are not limited to the containers and bottles mentioned above, but can be of any type,
Of course, it can be used to package things for which they are intended. Next, examples of the present invention will be shown.
＜実施例 １＞
スチレン・プタジェンブロツク共重合体；７５重量％（
スチレン含量約７５％、ブタジェン含量約２５％のもの
）ポリスチレソ（熱変形温度：９鰭○）；２５重量％上
記成分を配合し、これをＴダィ押出機で押出成膜した後
、テンター延伸機で韓方向に３倍延伸し、収縮包装用フ
ィルムを得た。<Example 1> Styrene/putadiene block copolymer; 75% by weight (
Styrene content: about 75%, butadiene content: about 25%) Polystyrene (heat distortion temperature: 9 fins); 25% by weight The above ingredients were blended, and after extrusion forming the film using a T-die extruder, tenter stretching was performed. The film was stretched 3 times in the Korean direction using a machine to obtain a shrink wrapping film.
このフィルムは腰もあり、すべり性を良好でかつ無毒性
であった。このフィルムを用い第２図に示す如如く瓶に
ラベル包装を行なったところ、スムースに機械包装を行
なうことができた。本発明のフィルムは以上の如く従釆
のものに比べ無毒性の上に、腰が強くかつすべり性の良
好なため機械包装性に優れ、更に透明性も良好でブロッ
キング現象の生じない点で優れ、容器等の開口部被覆包
装、ラベル包装、ひねり包装等に好適な用途が期待され
る他、各種物品の包装に使用されその包装された物品は
、より商品価値が増大する効果が期待できる。This film was stiff, had good slip properties, and was non-toxic. When this film was used to label bottles as shown in FIG. 2, it was possible to carry out the mechanical packaging smoothly. As described above, the film of the present invention is non-toxic compared to its predecessors, has strong elasticity and good slip properties, and has excellent mechanical packaging properties.Furthermore, the film has good transparency and is superior in that it does not cause blocking phenomena. In addition to being expected to find suitable uses in packaging for covering the openings of containers, label packaging, twist packaging, etc., it can also be used to package various products, and the wrapped products can be expected to have the effect of increasing the commercial value.
第１図、第２図は本発明に係るフィルムの使用例を示し
たものである。
１…食品容器、２・・・関口被覆体、３・・・シール部
分、４…瓶、５…ラベル。
第１図
第２図FIG. 1 and FIG. 2 show examples of use of the film according to the present invention. DESCRIPTION OF SYMBOLS 1... Food container, 2... Sekiguchi covering body, 3... Seal part, 4... Bottle, 5... Label. Figure 1 Figure 2
Claims (1)
３５％のスチレン・ブタジエンブロツク共重合体５０〜
９８重量％と、熱変形温度９０℃以上のポリスチレン５
０〜２重量％とを含有し、かつ緯１軸に延伸されてなる
ことを特徴とする収縮包装用フイルム。1 Styrene content 65-90%, butadiene content 10-90%
35% styrene-butadiene block copolymer 50~
Polystyrene 5 with a heat distortion temperature of 98% by weight and a heat distortion temperature of 90°C or higher
1. A film for shrink wrapping, characterized in that the film contains 0 to 2% by weight and is uniaxially stretched in the weft direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10589082A JPS6030705B2 (en) | 1982-06-17 | 1982-06-17 | Shrink wrapping film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10589082A JPS6030705B2 (en) | 1982-06-17 | 1982-06-17 | Shrink wrapping film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS585355A JPS585355A (en) | 1983-01-12 |
| JPS6030705B2 true JPS6030705B2 (en) | 1985-07-18 |
Family
ID=14419508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10589082A Expired JPS6030705B2 (en) | 1982-06-17 | 1982-06-17 | Shrink wrapping film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6030705B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02111391U (en) * | 1989-02-22 | 1990-09-06 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5925825A (en) * | 1982-08-03 | 1984-02-09 | Gunze Ltd | Expanded material having heat sherinkability in crosswise direction |
| GB9026109D0 (en) * | 1990-11-30 | 1991-01-16 | Hulse Richard F | Improvements relating to labelling |
| JP3138754B2 (en) * | 1997-12-05 | 2001-02-26 | グンゼ株式会社 | Low temperature heat shrinkable film for labels |
| ATE529465T1 (en) | 2006-07-27 | 2011-11-15 | Dow Global Technologies Llc | SHRINK LABELS MADE OF ORIENTED POLYSTYRENE FILM WITH SMALL RUBBER PARTICLES AND LOW RUBBER PARTICLE GEL CONTENT AND BLOCK COPOLYMERS |
| WO2011094117A2 (en) | 2010-01-28 | 2011-08-04 | Avery Dennison Corporation | Label applicator belt system |
-
1982
- 1982-06-17 JP JP10589082A patent/JPS6030705B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02111391U (en) * | 1989-02-22 | 1990-09-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS585355A (en) | 1983-01-12 |
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