JPH1120859A - Container - Google Patents
ContainerInfo
- Publication number
- JPH1120859A JPH1120859A JP9190569A JP19056997A JPH1120859A JP H1120859 A JPH1120859 A JP H1120859A JP 9190569 A JP9190569 A JP 9190569A JP 19056997 A JP19056997 A JP 19056997A JP H1120859 A JPH1120859 A JP H1120859A
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl chloride
- container
- partially crosslinked
- sheet
- blocking
- 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.)
- Withdrawn
Links
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 62
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 62
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 7
- 229920002554 vinyl polymer Polymers 0.000 abstract description 3
- 239000008280 blood Substances 0.000 abstract description 2
- 210000004369 blood Anatomy 0.000 abstract description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000009472 formulation Methods 0.000 description 8
- 239000004014 plasticizer Substances 0.000 description 7
- 239000003381 stabilizer Substances 0.000 description 6
- 230000001954 sterilising effect Effects 0.000 description 6
- 238000004659 sterilization and disinfection Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000004049 embossing Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Packages (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はポリ塩化ビニル組成
物よりなるシートから構成される容器であり、容器内面
相互間のブロッキングの問題の改善を図った容器に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container comprising a sheet made of a polyvinyl chloride composition, and more particularly to a container in which the problem of blocking between inner surfaces of the container is improved.
【０００２】[0002]
【従来技術及び発明が解決しようとする課題】軟質塩化
ビニル樹脂は、優れた加工性、安全性、低価格等の点よ
り各種容器として汎用されている。しかしながら加熱時
に組成物である可塑剤の移行等により内面相互間におい
てブロッキングが生じ、容器の口開きが困難となり容器
内部に何らかの液体を充填する場合、液体のスムーズな
通過を阻害し不具合が起こる可能性があった。このよう
な軟質塩化ビニル樹脂におけるブロッキングを防止する
方法としては、例えば軟質塩化ビニル樹脂加工において
シート引取り機に付属するバックアップロール表面にエ
ンボスを施し、シートの片面にエンボスを移し取る方法
がある。しかしこの方法はエンボスロール等の高価な設
備が必要になる。このため内面相互間のブロッキングが
ない軟質塩化ビニル樹脂の組成物の容器の開発が望まれ
ていた。そこで本発明者は以上の課題を解決するために
鋭意検討を重ねた結果次の発明に到達した。2. Description of the Related Art Soft vinyl chloride resins are widely used as various containers because of their excellent workability, safety and low cost. However, blocking occurs between the inner surfaces due to migration of the plasticizer, which is a composition during heating, and it becomes difficult to open the container.When filling the inside of the container with some liquid, smooth passage of the liquid may be hindered and problems may occur. There was sex. As a method for preventing such a soft vinyl chloride resin from blocking, for example, there is a method of embossing a surface of a backup roll attached to a sheet take-off machine in soft vinyl chloride resin processing and transferring the emboss to one surface of a sheet. However, this method requires expensive equipment such as an embossing roll. For this reason, development of a container of a composition of a soft vinyl chloride resin having no blocking between inner surfaces has been desired. The inventor of the present invention has made intensive studies in order to solve the above-mentioned problems, and has arrived at the following invention.
【０００３】[0003]
［１］本発明はポリ塩化ビニルを主成分とするシートか
ら構成される容器において、ポリ塩化ビニルと溶融状態
で相容性が小さい部分架橋ポリ塩化ビニルをポリ塩化ビ
ニルに混合して、シート表面に微小の凹凸を形成し、シ
ート相互間のブロッキングを防止した容器を提供する。 ［２］本発明はシート中の部分架橋ポリ塩化ビニル成分
は、ポリ塩化ビニルに対して２０Ｗ／Ｗ％以上から４０
Ｗ／Ｗ％未満添加されている前記［１］に記載の容器を
提供する。 ［３］本発明は部分架橋ポリ塩化ビニルの粒径が４〜２
０μｍである前記［１］から［２］に記載の容器を提供
する。[1] The present invention relates to a container composed of a sheet containing polyvinyl chloride as a main component, wherein a partially crosslinked polyvinyl chloride having a low compatibility with polyvinyl chloride in a molten state is mixed with polyvinyl chloride, and the sheet surface is mixed. The present invention provides a container in which minute irregularities are formed on the sheet to prevent blocking between sheets. [2] In the present invention, the partially crosslinked polyvinyl chloride component in the sheet is from 20 W / W% or more to polyvinyl chloride with respect to polyvinyl chloride.
The container according to the above [1], wherein less than W / W% is added. [3] In the present invention, the particle size of the partially crosslinked polyvinyl chloride is 4 to 2
The container according to [1] or [2], which has a thickness of 0 μm.
【０００４】[0004]
【発明の実施の形態】図１は本発明の容器本体の表面１
の概略図である。容器本体の表面１は主成分のポリ塩化
ビニル２中にポリ塩化ビニルと溶融状態で相容性が小さ
い部分架橋ポリ塩化ビニル３が海島状に混在し、その結
果容器本体の表面１に微小な凹凸が形成される。FIG. 1 shows a surface 1 of a container body according to the present invention.
FIG. On the surface 1 of the container body, partially crosslinked polyvinyl chloride 3, which is in a molten state and has low compatibility with polyvinyl chloride, is mixed in the main component polyvinyl chloride in a sea-island state. Irregularities are formed.
【０００５】容器本体を構成するシートの成形方法につ
いて説明する。図２に示すように押出成形機４のホッパ
ー５より部分架橋ポリ塩化ビニルが配合されたポリ塩化
ビニル組成物がスクリュー部６に供給され、ヒーター７
で加熱されそこで均一に溶融・練合されてダイ８に押出
される。押出されたポリ塩化ビニル組成物シート９は、
巻き取り機１０により巻き取られる。ポリ塩化ビニル組
成物シート９は図３のように袋状に製袋して、容器本体
１１を形成し（図中、１３は容器本体シール部）、この
容器本体１１の天上部に容器口部１２を溶着して容器１
１Ａを形成する。ポリ塩化ビニル組成物を構成する部分
架橋ポリ塩化ビニルはポリ塩化ビニルに対して２０Ｗ／
Ｗ％以上から４０Ｗ／Ｗ％未満添加するのが良い。部分
架橋ポリ塩化ビニル成分は、ポリ塩化ビニル組成物中２
０Ｗ／Ｗ％未満のものはシート相互間でブロッキングを
起こし剥れにくくなり、例えば図３の容器１１等を作成
するとき作業効率が悪くなる。また、部分架橋ポリ塩化
ビニル成分はポリ塩化ビニル組成物中４０Ｗ／Ｗ％以上
のものはシール性が悪くなり好ましくない。[0005] A method of forming a sheet constituting the container body will be described. As shown in FIG. 2, a polyvinyl chloride composition containing partially cross-linked polyvinyl chloride is supplied from a hopper 5 of an extruder 4 to a screw section 6 and heated by a heater 7.
, Where it is uniformly melted and kneaded and extruded into a die 8. The extruded polyvinyl chloride composition sheet 9 is
It is wound by the winder 10. The polyvinyl chloride composition sheet 9 is formed into a bag shape as shown in FIG. 3 to form a container main body 11 (in the figure, 13 is a container main body sealing portion). Weld 12 and container 1
Form 1A. The partially crosslinked polyvinyl chloride constituting the polyvinyl chloride composition is 20 W /
It is preferable to add from W% or more to less than 40 W / W%. The partially crosslinked polyvinyl chloride component is contained in the polyvinyl chloride composition in 2 parts.
If it is less than 0 W / W%, blocking occurs between the sheets, making it difficult for the sheets to peel off. For example, when the container 11 shown in FIG. Further, the partially crosslinked polyvinyl chloride component having a ratio of 40 W / W% or more in the polyvinyl chloride composition is not preferable because the sealing property is deteriorated.
【０００６】〈実施例１〉厚さ０．５ｍｍ、下記配合１
から４よりなるポリ塩化ビニル組成物シートを袋状に製
袋し、この空容器を１２１℃、２０分の条件で高圧蒸気
滅菌し、滅菌後に容器内部のシート相互間のブロッキン
グの有無を下記評価基準で調べた。その結果を表１に示
す。表１の結果より粒径が４〜２０μｍの部分架橋ポリ
塩化ビニル成分がポリ塩化ビニル組成物中２０〜４０Ｗ
／Ｗ％であるものは、高圧蒸気滅菌後にシート相互間で
ブロッキングを起こさないことが確認できた。 配合１：ポリ塩化ビニル７０重量部、部分架橋ポリ塩化
ビニルＥ３０重量部（３０Ｗ／Ｗ％）、可塑剤５０重量
部、安定剤５重量部 配合２：ポリ塩化ビニル７０重量部、部分架橋ポリ塩化
ビニルＤ３０重量部（３０Ｗ／Ｗ％）、可塑剤５０重量
部、安定剤５重量部 配合３：ポリ塩化ビニル８０重量部、部分架橋ポリ塩化
ビニルＥ２０重量部（２０Ｗ／Ｗ％）、可塑剤５０重量
部、安定剤５重量部 配合４：ポリ塩化ビニル６０重量部、部分架橋ポリ塩化
ビニルＥ４０重量部（４０Ｗ／Ｗ％）、可塑剤５０重量
部、安定剤５重量部 部分架橋ポリ塩化ビニルＣ：粒径２〜５μｍ 部分架橋ポリ塩化ビニルＤ：粒径４〜８μｍ 部分架橋ポリ塩化ビニルＥ：粒径８〜２０μｍ 評価基準１：全くブロッキングがなく容易に口開きがで
きる。 評価基準２：一部ブロッキングした所があるが容易に口
開きができる。 評価基準３：一部ブロッキングした所があり口開き困難
である。 評価基準４：全面ブロッキングしており口開き困難であ
る。 <Example 1> 0.5 mm thick, the following formulation 1
The polyvinyl chloride composition sheet made of the above-mentioned is made into a bag, and the empty container is subjected to high-pressure steam sterilization at 121 ° C. for 20 minutes, and after sterilization, the presence or absence of blocking between sheets inside the container is evaluated as follows. Checked by criteria. Table 1 shows the results. According to the results shown in Table 1, the partially crosslinked polyvinyl chloride component having a particle size of 4 to 20 μm contained 20 to 40 W in the polyvinyl chloride composition.
/ W%, it was confirmed that no blocking occurred between sheets after high-pressure steam sterilization. Formulation 1: 70 parts by weight of polyvinyl chloride, 30 parts by weight of partially crosslinked polyvinyl chloride E (30 W / W%), 50 parts by weight of a plasticizer, 5 parts by weight of a stabilizer Formulation 2: 70 parts by weight of polyvinyl chloride, partially crosslinked polychlorinated 30 parts by weight of vinyl D (30 W / W%), 50 parts by weight of plasticizer, 5 parts by weight of stabilizer Formulation 3: 80 parts by weight of polyvinyl chloride, 20 parts by weight of partially crosslinked polyvinyl chloride E (20 W / W%), 50 parts of plasticizer Part by weight, 5 parts by weight of stabilizer Formulation 4: 60 parts by weight of polyvinyl chloride, 40 parts by weight of partially crosslinked polyvinyl chloride E (40 W / W%), 50 parts by weight of plasticizer, 5 parts by weight of stabilizer Partially crosslinked polyvinyl chloride C : Particle size: 2 to 5 μm Partially crosslinked polyvinyl chloride D: Particle size: 4 to 8 μm Partially crosslinked polyvinyl chloride E: Particle size: 8 to 20 μm Evaluation criterion 1: The mouth can be easily opened without any blocking. Evaluation Criteria 2: Although there was a part where blocking occurred, the mouth could be easily opened. Evaluation Criteria 3: Some parts were blocked and it was difficult to open the mouth. Evaluation Criteria 4: The entire surface is blocked, and it is difficult to open the mouth.
【０００７】〈比較例１〉厚さ０．５ｍｍ、下記配合５
から６よりなるポリ塩化ビニル組成物シートを袋状に製
袋し、この空容器を１２１℃、２０分の条件で高圧蒸気
滅菌し、滅菌後に容器内部のシート相互間のブロッキン
グの有無を前記評価基準で調べた。その結果を表２に示
す。表２の結果より滅菌後にシート相互間で多少ブロッ
キングすることが確認された。 配合５：ポリ塩化ビニル７０重量部、部分架橋ポリ塩化
ビニルＣ３０重量部（３０Ｗ／Ｗ％）、可塑剤５０重量
部、安定剤５重量部 配合６：ポリ塩化ビニル８５重量部、部分架橋ポリ塩化
ビニルＥ１５重量部（１５Ｗ／Ｗ％）、可塑剤５０重量
部、安定剤５重量部 <Comparative Example 1> Thickness 0.5 mm, following composition 5
6 is made into a bag, and the empty container is subjected to high-pressure steam sterilization at 121 ° C. for 20 minutes, and after sterilization, the presence or absence of blocking between sheets in the container is evaluated as described above. Checked by criteria. Table 2 shows the results. From the results in Table 2, it was confirmed that there was some blocking between the sheets after sterilization. Formulation 5: 70 parts by weight of polyvinyl chloride, 30 parts by weight of partially crosslinked polyvinyl chloride C (30 W / W%), 50 parts by weight of plasticizer, 5 parts by weight of stabilizer Formulation 6: 85 parts by weight of polyvinyl chloride, partially crosslinked polychlorinated 15 parts by weight of vinyl E (15 W / W%), 50 parts by weight of plasticizer, 5 parts by weight of stabilizer
【０００８】〈実施例２〉厚さ０．５ｍｍ、前記配合
１、３、４よりなるポリ塩化ビニル組成物シートを高周
波シールした後１２１℃、２０分の条件で高圧蒸気滅菌
し乾燥後のシール及び非シール部を含んだ１ｃｍ幅のテ
ストピースを作製しそのシール強度をロードセル引っ張
り試験機を用いて引っ張り速度２００ｍｍ／分で測定し
た。その結果を表３に示す。表３の結果より部分架橋ポ
リ塩化ビニル成分がポリ塩化ビニル組成物中４０Ｗ／Ｗ
％のものはシール強度が多少弱いことが確認できた。他
のものは至適シール強度（３〜４ｋｇｆ／ｃｍ）である
ことが確認できた。 Example 2 A polyvinyl chloride composition sheet having a thickness of 0.5 mm and comprising the above-mentioned formulations 1, 3, and 4 was subjected to high-frequency sealing, then sterilized by high-pressure steam at 121 ° C. for 20 minutes, and dried. Then, a test piece having a width of 1 cm including a non-sealed portion was prepared, and its sealing strength was measured at a pulling speed of 200 mm / min using a load cell tensile tester. Table 3 shows the results. From the results in Table 3, the partially crosslinked polyvinyl chloride component was 40 W / W in the polyvinyl chloride composition.
%, It was confirmed that the sealing strength was somewhat weak. Others were confirmed to have the optimum seal strength (3 to 4 kgf / cm).
【０００９】[0009]
【発明の作用効果】主成分のポリ塩化ビニルに溶融状態
で相容性の小さい部分架橋ポリ塩化ビニルを混合して容
器本体の表面に微小な凹凸を形成することによりシート
相互間のブロッキングを防止できるようになった。この
ため容器内面相互間のブロッキングを防止でき、さらに
血液バッグのように複数の容器を重ねて包装する場合も
それぞれの容器の外表面間のブロッキングを防止するこ
とができる。Advantageous Effects of the Invention Prevention of sheet-to-sheet blocking by mixing minutely partially crosslinked polyvinylchloride having low compatibility in the molten state with the main component polyvinylchloride to form minute irregularities on the surface of the container body Now you can. For this reason, it is possible to prevent blocking between the inner surfaces of the containers, and also to prevent blocking between the outer surfaces of the containers when a plurality of containers are stacked and packaged like a blood bag.
【図１】本発明の容器本体の表面の概略図FIG. 1 is a schematic view of the surface of a container body of the present invention.
【図２】本発明の容器の成形方法を示す概略図FIG. 2 is a schematic view showing a method for molding a container of the present invention.
【図３】本発明の容器の概略図FIG. 3 is a schematic view of the container of the present invention.
【符号の説明】 １ 容器本体の表面 ２ 容器の主成分のポリ塩化ビニル ３ 部分架橋ポリ塩化ビニル ４ 押出成形機 ５ ホッパー ６ スクリュー部 ７ ヒーター ８ ダイ ９ ポリ塩化ビニル組成物シート １０ 巻き取り機 １１Ａ 容器 １１ 容器本体 １２ 容器口部 １３ 容器本体シール部[Description of Signs] 1 Surface of container body 2 Polyvinyl chloride as main component of container 3 Partially crosslinked polyvinyl chloride 4 Extruder 5 Hopper 6 Screw section 7 Heater 8 Die 9 Polyvinyl chloride composition sheet 10 Winder 11A Container 11 Container body 12 Container mouth 13 Container body seal
Claims (3)
構成される容器において、ポリ塩化ビニルと溶融状態で
相容性が小さい部分架橋ポリ塩化ビニルをポリ塩化ビニ
ルに混合して、シート表面に微小の凹凸を形成し、シー
ト相互間のブロッキングを防止した、ことを特徴とする
容器。1. A container composed of a sheet containing polyvinyl chloride as a main component, wherein a partially crosslinked polyvinyl chloride having a low compatibility with the polyvinyl chloride in a molten state is mixed with the polyvinyl chloride to form a sheet on the sheet surface. A container characterized by forming minute irregularities to prevent blocking between sheets.
は、ポリ塩化ビニルに対して２０Ｗ／Ｗ％以上から４０
Ｗ／Ｗ％未満添加されていることを特徴とする請求項１
に記載の容器。2. The partially cross-linked polyvinyl chloride component in the sheet is from 20 W / W% to 40% based on polyvinyl chloride.
2. The composition according to claim 1, wherein the amount is less than W / W%.
A container according to claim 1.
μｍであることを特徴とする請求項１から２に記載の容
器。3. A partially crosslinked polyvinyl chloride having a particle size of 4 to 20.
The container according to claim 1, wherein the container has a size of μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9190569A JPH1120859A (en) | 1997-07-01 | 1997-07-01 | Container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9190569A JPH1120859A (en) | 1997-07-01 | 1997-07-01 | Container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1120859A true JPH1120859A (en) | 1999-01-26 |
Family
ID=16260254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9190569A Withdrawn JPH1120859A (en) | 1997-07-01 | 1997-07-01 | Container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1120859A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007061329A (en) * | 2005-08-31 | 2007-03-15 | Asahi Kasei Medical Co Ltd | White blood cell removal filter with high pressure steam sterilization resistance |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60259264A (en) * | 1984-06-07 | 1985-12-21 | テルモ株式会社 | Medical device |
| JPH02114963A (en) * | 1988-10-25 | 1990-04-27 | Terumo Corp | Platelet preserving container and preparation thereof |
-
1997
- 1997-07-01 JP JP9190569A patent/JPH1120859A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60259264A (en) * | 1984-06-07 | 1985-12-21 | テルモ株式会社 | Medical device |
| JPH02114963A (en) * | 1988-10-25 | 1990-04-27 | Terumo Corp | Platelet preserving container and preparation thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007061329A (en) * | 2005-08-31 | 2007-03-15 | Asahi Kasei Medical Co Ltd | White blood cell removal filter with high pressure steam sterilization resistance |
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