JP7500533B2 - ラミネートされた包装材料を製造する方法、この方法によって得られた包装材料、及びこの包装材料から製造された包装容器 - Google Patents
ラミネートされた包装材料を製造する方法、この方法によって得られた包装材料、及びこの包装材料から製造された包装容器 Download PDFInfo
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- JP7500533B2 JP7500533B2 JP2021203809A JP2021203809A JP7500533B2 JP 7500533 B2 JP7500533 B2 JP 7500533B2 JP 2021203809 A JP2021203809 A JP 2021203809A JP 2021203809 A JP2021203809 A JP 2021203809A JP 7500533 B2 JP7500533 B2 JP 7500533B2
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Description
また、プラスティックから成る成形された頂部及び/又はねじ式キャップを有するこの種類のパッケージもある。
a)低密度セルロースのスペーサ層を備える中央モジュールのバルク材料のウェブを提供するステップであって、前記ウェブが固有の曲げ剛性を有さないか又は低い曲げ剛性を有し、850Kg/m3より低い密度、及び60~250g/m2の坪量を有する、ステップと、
b)装飾が印刷されるか又はその上に適用された装飾を有する、或いは有しない少なくとも1つの印刷基材層を備える外側材料モジュールのウェブを提供するステップであって、外側材料モジュールは、中央モジュールのバルク材料の側が、ラミネートされた包装材料から作られた包装容器の外側に方向づけられるように意図されている、ステップと、
c)中央モジュールのバルク材料のウェブ及び外側材料モジュールのウェブの外側を互いに対してラミネート加工するステップと、
d)装飾を外側材料モジュールに加えるステップと、
e)少なくともバリア層を備える内側材料モジュールのウェブを提供するステップであって、内側材料モジュールは、バルク材料の側が、ラミネートされた包装材料から作られた包装容器の内側に方向づけられるように意図されている、ステップと、
f)内側材料モジュールのウェブ及び中央モジュール部バルク材料のウェブの内側を互いに対してラミネート加工するステップと、
g)最も外側の透明かつ液密な保護層を、外側材料モジュールの外側に適用するステップと、
h)最も外側の熱可塑性の液密かつ熱シール可能な層を、外側材料モジュールの内側に適用するステップと、
i)結果としてラミネートされたセルロースベースの液状又は粘性のある食品の包装材料のウェブを、リール上にさらに巻き付けるために得るステップと、
からなるステップを備え、スペーサ層が、ラミネートされた包装材料内にサンドイッチ構造の中央を構成し、このサンドイッチ構造は、スペーサ層の少なくとも一方の側に配置され、スペーサ層の他方の側に配置されたさらなる対面層と相互作用する、少なくとも1つの紙製対面層を有し、この紙製対面層及びさらなる対面層は、非常に小さい厚みを有するが、スペーサ層より高いヤング率を有する方法が提供される。
外側材料モジュール3Bもまた、プラスティック、好ましくは熱シール可能な熱可塑性の、例えばポリエチレンのようなポリオレフィン等から成る最も外側の液密かつ透明な層16cを備える。印刷基材及び紙の対面層12cは、スペーサ層へのラミネーションの前又は後に印刷することができ、最も外側のプラスティック層16cは、スペーサ層11cへのラミネーションの前又は後に、別の作業において印刷基材層上に適用される。プラスティック層16cによる装飾印刷コーティングが、中央モジュールのスペーサ層へのラミネーションの前に行われる場合には、外側材料モジュール全体が1つのモジュールとして、すなわち前以て作成された外側として準備され、次いで中央スペーサ層の外側上において中央モジュールへ又はラミネートの残りへラミネートされる。ラミネーション作業は溶融押出ラミネーション作業とすることができ、これにより熱可塑性中間接合層14cをスペーサ層と、基材及び紙の対面層12cと、の間に適用する。しかし、この特定の実施形態では、印刷基材の紙の対面層12cの中央モジュールのスペーサ層11cへのラミネーションは、低量の接着剤14aの水溶液を適用することによって行われ、接着剤はそれぞれのセルロース層中に部分的に吸収され、2つの紙‐セルロース層を共に接着し、この接着剤は、でんぷん又はナノ‐/マイクロファイバセルロース又はポリビニルアルコール/ポリビニルアセテート又は同様の天然の生分解性の物質であり、セルロース分子を結合することができる。
印刷基材及び紙の対面層12dは、中央スペーサ層へのラミネーションの前又は後に印刷することができ、最も外側のプラスティック層16dは、スペーサ層11dへのラミネーションの前又は後に、別の作業において印刷基材層上に適用される。プラスティック層16dによる装飾印刷コーティングが、中央モジュールのスペーサ層へのラミネーションの前に行われる場合には、外側材料モジュール全体が1つのモジュールとして、すなわち前以て作成された外側としてこのように準備され、次いで中央スペーサ層の外側上において中央モジュールへ又はラミネートの残りへラミネートされる。ラミネーション作業は溶融押出ラミネーション作業とすることができ、したがって熱可塑性中間接合層14dをスペーサ層と、基材及び紙の対面層12dと、の間に適用する。しかし、この特定の実施形態では、印刷基材の紙の対面層12dの中央モジュールのスペーサ層11dへのラミネーションは、低量の接着剤の水溶液を適用することによって行われ、接着剤はそれぞれのセルロース層中に部分的に吸収され、2つの紙‐セルロース層を共に接着し、この接着剤は、でんぷん又はナノ‐/マイクロファイバセルロース又はポリビニルアルコール/ポリビニルアセテート又は同様の天然の生分解性の物質であり、セルロース分子を結合することができる。
1:小さなパッケージ用の80mNの剛性の板紙
2:6.3μm厚みのアルミニウム箔でラミネートされた、1の板紙
3:40g/m2の耐油紙でラミネートされた、1の板紙
4:72g/m2の紙を一方の側にラミネートされ、6.3μm厚みのアルミニウム箔を他方の側にラミネートされた165g/m2のフルーティング材から成るバルク層
5:72g/m2の紙を一方の側にラミネートされ、40g/m2の耐油紙を他方の側にラミネートされた165g/m2のフルーティング材から成るバルク層
である。
1B;2B;3B;4B 外側材料
1C;2C;3C;4C 内側材料モジュール
10a;10b;10c;10d 包装材料
11a;11b;11c;11d スペーサ層
12a;12c;12d 印刷基材層、紙の対面層
12b;13c;13d 紙の対面層
13a;18b;18c;18d バリア層
16a;16b;16c;16d 保護層
17a;17b;17c;17d 熱シール可能な層
18b;18c;18d バリアコーティング
19b 印刷基材層
21d 装飾
30a;30b;30c;30d 包装容器
Claims (10)
- 十分な機械強度及びバリア特性、並びに魅力的な外観を有するパッケージへの熱シール用の、ラミネートされたセルロースベースの、液状又は半液状食品のための包装材料(10a)を製造する方法であって、
a)700kg/m3より小さい密度、及び60~250g/m2の坪量を有し、発泡体形成プロセスによって作成された繊維セルロース層のスペーサ層(11a)を備えるバルク材料から成る中央モジュール(1A)のウェブを提供するステップ、
b)外側材料モジュールの外側に向かって方向付けられた印刷可能な表面又は印刷された表面を有する紙の対面層であって、中間接合層又は接着剤によって前記バルク材料の外側表面にラミネートされた紙の対面層を備える外側材料モジュール(1B)のウェブを提供するステップであって、前記外側材料モジュールが、前記包装材料から成る包装容器の前記外側に方向づけられる、ステップ、
c)前記中央モジュールのバルク材料の前記ウェブの外側、及び前記外側材料モジュールのウェブを、互いに対してラミネートするステップ、
d)前記外側材料モジュールに装飾(21d)を加えるステップ、
e)中間接合層又は接着剤によって前記バルク材料の内面にラミネートされたバリアコーティング(18a)を有する紙の対面層を備える内側材料モジュール(1C)のウェブを提供するステップであって、前記内側材料モジュールが、前記包装材料から成る包装容器の内側に方向づけられている、ステップ、
f)前記内側材料モジュールの前記ウェブと、前記中央モジュールのバルク材料の前記ウェブの内側を、互いに対してラミネートするステップ、
g)最も外側の透明かつ液密な保護層(16a)を、前記外側材料モジュールの前記外側に適用するステップ、
h)最も外側の熱可塑性の、液密かつ熱シール可能な層(17a)を、前記内側材料モジュールの前記内側に適用するステップ、
i)前記ラミネートされたセルロースベースの、液状食品又は粘性食品用の包装材料のウェブを得るステップ、
を備え、
前記スペーサ層(11a)の少なくとも一方の側に配置された少なくとも1つの紙の対面層(12a)と、前記スペーサ層(11a)の他方の側に配置されたさらなる紙の対面層(13a)とを有し、前記紙の対面層(12a)及び前記さらなる紙の対面層(13a)は、前記スペーサ層より大幅に小さい厚み及び高いヤング率を有する、方法。 - 前記バルク材料は、前記スペーサ層及び前記スペーサ層の前記外側に直接隣接する前記紙の対面層を備え、一方で前記内側材料モジュールは前記さらなる紙の対面層を備えることを特徴とする請求項1に記載の方法。
- 前記バルク材料の外側表面にラミネートされた前記紙の対面層は、20~100g/m2、又は20~70g/m2、又は30~70g/m2の坪量、600~1500kg/m3の密度、及び1~10GPa、又は5~10GPaのヤング率を有することを特徴とする請求項1又は2に記載の方法。
- 前記スペーサ層の前記密度は、100~600kg/m3、又は100~600kg/m3、又は200~500kg/m3、又は300~400kg/m3である請求項1~3のいずれか一項に記載の方法。
- 前記内側材料モジュールは、ポリマフィルムを備える、請求項1~4のいずれか一項に記載の方法。
- 前記印刷可能な表面は、クレイコートされた白色の紙の表面、又は金属化されたフィルム、又は金属化された紙の表面であることを特徴とする請求項1~5のいずれか一項に記載の方法。
- 前記外側材料モジュールは、互いに対してラミネートされる前記表面のうちの一方に、0.5~4g/m2の量で水性接着剤組成物を適用し、それらを一緒にプレスすることによって、前記バルク材料にラミネートされることを特徴とする請求項1~6のいずれか一項に記載の方法。
- 前記内側材料モジュールは、互いにラミネートされる前記表面のうちの一方に、0.5~4g/m2の量で水性接着剤組成物を適用し、それらを一緒にプレスすることによって、前記バルク材料にラミネートされることを特徴とする請求項1~7のいずれか一項に記載の方法。
- 請求項1~8のいずれか一項に記載された方法によって得られた、ラミネートされた包装材料。
- 請求項9に記載のラミネートされた包装材料を備える包装容器(30a)。
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| EP3380320B2 (en) | 2025-12-17 |
| US20200384752A1 (en) | 2020-12-10 |
| CN112549668A (zh) | 2021-03-26 |
| US20190202191A1 (en) | 2019-07-04 |
| US11292238B2 (en) | 2022-04-05 |
| EP3795355A1 (en) | 2021-03-24 |
| ES2858353T5 (en) | 2026-04-09 |
| JP7808148B2 (ja) | 2026-01-28 |
| CN108290371A (zh) | 2018-07-17 |
| CN112549669A (zh) | 2021-03-26 |
| BR112018010667A2 (pt) | 2018-11-13 |
| CN112549668B (zh) | 2023-07-14 |
| EP3380320A1 (en) | 2018-10-03 |
| BR112018010667B1 (pt) | 2022-12-06 |
| ES2858353T3 (es) | 2021-09-30 |
| WO2017089507A1 (en) | 2017-06-01 |
| CN108290371B (zh) | 2021-07-02 |
| JP2018538170A (ja) | 2018-12-27 |
| DK3380320T3 (da) | 2021-03-22 |
| BR112018010667A8 (pt) | 2019-02-26 |
| DK3380320T4 (da) | 2026-02-23 |
| JP6997085B2 (ja) | 2022-01-17 |
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