Title:
ポリエステル系ラベルおよび包装容器
Document Type and Number:
Japanese Patent JP6504010
Kind Code:
B2
Abstract:
The present invention provides a label which is excellent in crack resistance during transport even if the label is a small thickness. The label of the present invention satisfies the following requirements (1) to (6):
(1) the label comprises a base film having a thickness of 8 µm or more and 30 µm or less:
(2) a polyester constituting the label has an intrinsic viscosity of 0.58 dl/g or more:
(3) the label has a tensile elongation at break of 5% or more in both a main shrinkage direction of the label and a direction orthogonal to the main shrinkage direction of the label:
(4) when an absorbancy at 1340 cm -1 and an absorbancy at 1410 cm -1 are measured for the base film constituting the label by a polarized ATR method, a difference between an absorbancy ratio (absorbancy at 1340 cm -1 / absorbancy at 1410 cm -1 ) in the main shrinkage direction of the label and an absorbancy ratio (absorbancy at 1340 cm -1 / absorbancy at 1410 cm -1 ) in the direction orthogonal to the main shrinkage direction of the label is 0.2 or more:
(5) when a reversible heat capacity curve is measured for the base film constituting the label with a temperature modulated differential scanning calorimeter, the base film constituting the label has a difference in specific heat capacity Cp between at a lower and a higher temperature than Tg of 0.2 J/(g¢°C) or more: and
(6) the label has a difference between a maximum value and a minimum value of a length in a vertical direction of the label of 3 mm or less.
More Like This:
| WO/2016/031056 | HEAT-SHRINKABLE MULTILAYER FILM AND HEAT-SHRINKABLE LABEL |
| WO/2010/074696 | THERMAL LABELS |
Inventors:
Masayuki Haruta
Nori Tabota
Nori Tabota
Application Number:
JP2015195298A
Publication Date:
April 24, 2019
Filing Date:
September 30, 2015
Export Citation:
Assignee:
Toyobo Co., Ltd.
International Classes:
G09F3/04; B65D23/08; C08G63/16; C08J5/18
Domestic Patent References:
| JP201424253A | ||||
| JP200382128A | ||||
| JP2009161625A | ||||
| JP2011202156A | ||||
| JP2015199336A |
Foreign References:
| WO2016152517A1 |
Attorney, Agent or Firm:
Kyuichi Ueki
Hisahiko Ueki
Tadashi Sugakawa
Hiroaki Ito
Yukari Shibata
Hisahiko Ueki
Tadashi Sugakawa
Hiroaki Ito
Yukari Shibata