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1. WO2022009780 - HEAT-SHRINKABLE POLYESTER-BASED FILM ROLL

Publication Number WO/2022/009780
Publication Date 13.01.2022
International Application No. PCT/JP2021/024994
International Filing Date 01.07.2021
IPC
B29K 67/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
67Use of polyesters as moulding material
B29L 7/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
7Flat articles, e.g. films or sheets
B65D 65/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
65Wrappers or flexible covers; Packaging materials of special type or form
02Wrappers or flexible covers
B29C 61/06 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
61Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
06Making preforms having internal stresses, e.g. plastic memory
C08J 5/18 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
CPC
B29C 61/06
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
61Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
06Making preforms having internal stresses, e.g. plastic memory
B65D 65/02
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
65Wrappers or flexible covers; Packaging materials of special type or form
02Wrappers or flexible covers
C08J 5/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
Applicants
  • 東洋紡株式会社 TOYOBO CO., LTD. [JP]/[JP]
Inventors
  • 石丸 慎太郎 ISHIMARU, Shintaro
  • 春田 雅幸 HARUTA, Masayuki
Priority Data
2020-11857909.07.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) HEAT-SHRINKABLE POLYESTER-BASED FILM ROLL
(FR) ROULEAU DE FILM À BASE DE POLYESTER THERMORÉTRACTABLE
(JA) 熱収縮性ポリエステル系フィルムロール
Abstract
(EN) [Problem] To provide a heat-shrinkable polyester-based film roll that can reduce defects in a heat shrinkage process due to a fluctuation in a heat shrinkage rate in a heat shrinkable polyester-based film roll having a main shrinkage direction in a longitudinal direction, in particular, defects occurring when a film is heat-shrunk after mounting on a packaging object by a wrap round method. [Solution] A heat-shrinkable polyester-based film roll in which a heat-shrinkable polyester-based film having a main shrinkage direction in a longitudinal direction is wound around a core, wherein a predetermined polyester composition is satisfied, and a heat shrinkage rate in the longitudinal direction after immersion in warm water at 90°C for 10 seconds is 30-80% and ±3% or less of the average heat shrinkage rate for all the samples when the samples are taken about every 100 m.
(FR) [Problème] Fournir un rouleau de film à base de polyester thermorétractable qui peut réduire des défauts dans un processus de retrait thermique en raison d'une fluctuation du taux de retrait thermique dans un rouleau de film à base de polyester thermorétractable ayant une direction de retrait principale dans une direction longitudinale, en particulier, des défauts se produisant lorsqu'un film est thermorétracté après montage sur un objet d'emballage par un procédé d'enveloppement. [Solution] Rouleau de film à base de polyester thermorétractable dans lequel un film à base de polyester thermorétractable ayant une direction de retrait principale dans une direction longitudinale est enroulé autour d'un noyau, une composition de polyester prédéterminée étant satisfaite, et un taux de retrait thermique dans la direction longitudinale après immersion dans de l'eau chaude à 90 °C pendant 10 secondes étant comprise entre 30 et 80 % et ± 3 % ou moins du taux de retrait thermique moyen pour tous les échantillons lorsque les échantillons sont prélevés environ tous les 100 m.
(JA) 【課題】 主収縮方向が長手方向である熱収縮性ポリエステル系フィルムロール内での熱収縮率の変動に起因する熱収縮工程での不良、特にラップ・ラウンド方式で包装対象物にフィルムを装着後、熱収縮させたときの不良を低減できる熱収縮性ポリエステル系フィルムロールを提供すること。 【解決手段】 主収縮方向が長手方向である熱収縮性ポリエステル系フィルムがコアに巻き取られてなる熱収縮性ポリエステル系フィルムロールであって、所定のポリエステル組成を満たすと共に、約100m毎に試料を採取したときの90℃の温水中に10秒浸漬後の長手方向の熱収縮率が、全ての試料について30%以上80%以下、かつ平均熱収縮率の±3%以下である。
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